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Supercharged Local Directory File Browser

Makes directory index pages (either local or remote open directories) actually useful. Adds sidebar and content preview pane; keyboard navigation; sorting; light/dark UI; preview images/fonts in navigable grids; browse subdirectories w/o page reload; media playback, shuffle/loop options; basic playlist (m3u, extm3u) & cuesheet (.cue) support; create, edit, preview, save markdown/plain text files; open font files, view complete glyph repertoire, save glyphs as .svg; more.

当前为 2023-06-25 提交的版本，查看 最新版本。

  1. /* eslint-disable no-case-declarations, no-fallthrough, indent, no-mixed-spaces-and-tabs, no-multi-spaces, no-return-assign, no-useless-escape, quotes */
  2. /* jshint esversion: 6 */
  3.  
  4. // ==UserScript==
  5. // @name			Supercharged Local Directory File Browser
  6. // @version			8.0.1
  7. // @description		Makes directory index pages (either local or remote open directories) actually useful. Adds sidebar and content preview pane; keyboard navigation; sorting; light/dark UI; preview images/fonts in navigable grids; browse subdirectories w/o page reload; media playback, shuffle/loop options; basic playlist (m3u, extm3u) & cuesheet (.cue) support; create, edit, preview, save markdown/plain text files; open font files, view complete glyph repertoire, save glyphs as .svg; more.
  8. // @author			gaspar_schot
  9. // @license			GPL-3.0-or-later
  10. // @homepageURL		https://openuserjs.org/scripts/gaspar_schot/Supercharged_Local_Directory_File_Browser
  11. // @icon data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIAAAACAAgMAAAC+UIlYAAAACVBMVEUmRcmZzP8zmf8pVcWPAAAAAXRSTlMAQObYZgAAAFBJREFUeF7tyqERwDAMBEE3mX5UiqDmqwwziTPHjG7xrmzrLFtRaApDIRiKQlMYCsFQFJrCUAiGotAU5hTA1WB4fhkMBsOJwWAwgHvB8CHpBcTbpxy4RZNvAAAAAElFTkSuQmCC
  12. // @match			file://*/*
  13. // @match			about:blank
  14. // @match 			https://www.example.com/path/to/directory/*
  15.  
  16. // @require https://cdn.jsdelivr.net/npm/markdown-it@13.0.1/dist/markdown-it.min.js
  17. // @require https://cdn.jsdelivr.net/npm/markdown-it-footnote@3.0.2/dist/markdown-it-footnote.min.js
  18. // @require https://cdn.jsdelivr.net/npm/markdown-it-toc-done-right@2.1.0/dist/markdown-it-toc-made-right.min.js
  19. // @require https://cdn.jsdelivr.net/npm/markdown-it-sub@1.0.0/dist/markdown-it-sub.min.js
  20. // @require https://cdn.jsdelivr.net/npm/markdown-it-sup@1.0.0/dist/markdown-it-sup.min.js
  21. // @require https://cdn.jsdelivr.net/npm/markdown-it-deflist@2.0.3/dist/markdown-it-deflist.min.js
  22. // @require https://cdn.jsdelivr.net/npm/markdown-it-multimd-table@4.0.2/dist/markdown-it-multimd-table.min.js
  23. // @require https://cdn.jsdelivr.net/npm/markdown-it-center-text@1.0.4/dist/markdown-it-center-text.min.js
  24. // @require https://cdn.jsdelivr.net/npm/opentype.js@1.3.4/dist/opentype.min.js
  25. // @require https://cdn.jsdelivr.net/npm/@gerhobbelt/markdown-it-checkbox@1.2.0-3/dist/markdownItCheckbox.umd.js
  26.  
  27.  
  28. // @namespace https://greasyfork.org/users/16170
  29. // ==/UserScript==
  30.  
  31. (function() {
  32. 	// ************ J + M + J ************* //
  33. 	'use strict';
  34. 	// ***** UI SETTINGS ***** //
  35. 	const UI_Prefs_Bool = {
  36. 		alternate_background: true, apps_as_dirs: true, autoload_index_files: true, ignore_ignored_items: true, media_autoload: true, media_autoplay: true, media_play_all: true,
  37. 		show_details: true, show_ignored_items: true, show_image_thumbnails: true, show_image_thumbnails_always: true, show_large_image_thumbnails: true, show_invisibles: true, show_numbers: true, show_sidebar: true,
  38. 		text_editing_enable: true, texteditor_split_view: true, texteditor_sync_scroll: true, use_custom_icons: true,
  39. 	}
  40. 	const UI_Prefs_Non_Bool = {
  41. 		grid_font_size: 	1,							// Default = 1
  42. 		grid_image_size: 	184,						// Default = 184 (200px - 16px)
  43. 		sort_by: 			'default',					// Choose from: 'name', 'size', 'date', 'kind', 'ext', 'default ( = Chrome sorting: dirs on top, files alphabetical).
  44. 		sort_direction: 	'ascending',				// Choose from: 'ascending' (A-Z) [default] or 'descending' (Z-A).
  45. 		texteditor_view:	'preview',					// Options: 'texteditor_preview','texteditor_view_html'
  46. 		theme:				'light',					// Options: 'light' or 'dark'
  47. 		ui_font:			'system-ui, sans-serif',	// Choose an installed font for the UI; if undefined, use browser defaults instead. [system-ui, sans-serif]
  48. 		ui_font_size:		'13px',						// Choose a default UI font size; use any standard CSS units.
  49. 		ui_scale:			'100',
  50. 	}
  51. 	let UI_Settings = {...UI_Prefs_Bool, ...UI_Prefs_Non_Bool};
  52. 	const Item_Kinds = {
  53. 		dir:			['/'], 																														// loaded in iframe#content_iframe
  54. 		app:			['app/','app','appimage','apk','exe','ipa','ipk','jar','msi','wsf'], 																		// generally ignored; some apps may be opened as directories
  55. 		alias:			['alias','desktop','directory','lnk','symlink','symlink/'],
  56. 		archive:		['7z','archive','b6z','bin','bzip','bz2','cbr','dmg','gz','iso','mpkg','pkg','rar','sit','sitx','tar','tar.gz','zip','zipx','zxp'], // ignored
  57. 		audio:			['aac','aif','aiff','ape','flac','m4a','mka','mp3','ogg','opus','wav'], 													// loaded in audio#audio
  58. 		bin:			['a','ase','bundle','dll','dyld','dylib','gem','icc','msi','profraw','pyc','pyo','o','rakefile','ri','so','torrent','xml','2','opml','qm','scpt','uo','vsix','zwc'], // ignored
  59. 		code:			['bak','bash','bash_profile','bashrc','bat','cgi','com','c','cfg','cnf','codes','coffee','conf','csh','cshrc','cson','css','cuetxt','custom_aliases','d','default','description','dist','editorconfig','emacs','example','gemspec','gitconfig','gitignore','gitignore_global','h','hd','ini','js','json','jsx','less','list','local','login','logout','lua','mkshrc','old','pc','php','pl','plist','pre-oh-my-zsh','profile','pth','py','rb','rc','rdoc','sass','settings','sh','strings','taskrc','tcl','viminfo','vimrc','vue','vtt','yaml','yml','zlogin','zlogout','zpreztorc','zprofile','zsh','zshenv','zshrc'], 				// treated as text, opened in iframe#content_iframe text editor
  60. 		database:		['accdb','db','dbf','mdb','pdb','sql', 'sqlite','sqlitedb','sqlite3'],														// ignored
  61. 		ebook:			['azw','azw1','azw3','azw4','epub','ibook','kfx','mobi','tpz'],																// ignored
  62. 		font:			['otf','ttf','woff','woff2','afm','pfb','pfm','tfm'], 																		// opened in div#content_font
  63. 		graphics:		['afdesign','afpub','ai','book','dtp','eps','fm','icml','icns','idml','indd','indt','inx','mif','pmd','pub','qxb','qxd','qxp','sla','swf','ai','arw','cr2','dng','eps','jpf','nef','psd','psd','raw','tif','tiff'], // ignored
  64. 		htm:			['htm','html','xhtm','xhtml'], 																								// opened in iframe#content_iframe
  65. 		image:			['apng','bmp','gif','ico','jpeg','jpg','png','svg','webp'],
  66. 		link:			['url','webloc','inetloc'],
  67. 		markdown:		['md','markdown','mdown','mkdn','mkd','mdwn','mdtxt','mdtext'], 															// treated as text, opened in iframe#content_iframe text editor
  68. 		other_ignored:	['alias','cue','dat','dic','idx','xmp'],
  69. 		office:			['csv','doc','docx','epub','key','numbers','odf','ods','odt','pages','rtf','scriv','wpd','wps','xlr','xls','xlsx','xlm'],	// ignored
  70. 		playlist:		['m3u','m3u8','pls','asx','wpl','xspf'],
  71. 		pdf:			['pdf'], 																													// open in #content_pdf
  72. 		system:			['DS_Store','ds_store','icon','ics','spotlight-v100/','temporaryitems/','documentrevisions-v100/','trashes/','fseventsd/','dbfseventsd','file','programdata','localized'], // ignored system items
  73. 		text:			['log','nfo','txt','text','readme'], 																						// opened in iframe#content_iframe text editor
  74. 		video:			['m4v','mkv','mov','mp4','mpeg','webm'] 																					// loaded in video#content_video
  75. 	};
  76. 	const Item_Settings = {		// ITEM_SETTINGS: Ignore or Exclude files by extension (prevents browser from attempting to download the file).
  77. 		ignored: [...Item_Kinds.archive,...Item_Kinds.bin,...Item_Kinds.database,...Item_Kinds.graphics,...Item_Kinds.other_ignored,...Item_Kinds.office,...Item_Kinds.playlist,...Item_Kinds.system]
  78. 	};
  79.  
  80. 	// ***** UTILITIES ***** //
  81. 	function loadFileURL() {																												// ===> LOAD FILE URL
  82. 		// if window.location points to a file, change the location to the file's container dir, add search_param of file name; then load the file's container dir and load file in content pane.
  83. 		let search_params = getSearchParams();
  84. 			search_params.set( 'file', window.location.pathname.split('/').reverse()[0]);
  85. 			window.location = window.location.pathname.slice( 0,window.location.pathname.lastIndexOf('/') ) +'/?'+ search_params ;
  86. 		return;
  87. 	}
  88. 	if ( !window.location.pathname.endsWith('/') && window.top === window.self ) { loadFileURL(); } 										// load file urls
  89. 	//==============================//
  90. 	function isTopWindow() { return ( window.top === window.self || false ) }																// ===> TOP WINDOW OR IFRAME
  91. 	function getBrowser() { //*** needs testing for new userAgentData object --> what are possible brand names?; combine with getOS()		// ===> GET BROWSER
  92. 		let brand = ( navigator.userAgentData !== undefined ? navigator.userAgentData.brands[1].brand.toLowerCase() : navigator.userAgent );
  93. 		switch(true) {
  94. 			case brand === 'chromium' || ( /chrome?chromium/.test(brand) ):	return 'is_chrome';
  95. 			case brand === 'msie'	  || ( /msie/.test(brand) ):	return 'is_explorer';
  96. 			// case brand === 'edge'	  || ( /edge/.test(brand) ):	return 'is_edge'; // need case for ms edge
  97. 			case brand === 'opera'    || ( /opera/.test(brand) ):	return 'is_opera';
  98. 			case brand === 'safari'   || ( /safari/.test(brand) ):	return 'is_safari';
  99. 			case brand === 'firefox'  || ( !/chrome|chromium/.test(brand) ):	return 'is_gecko';
  100. 		}
  101. 	}
  102. 	function getOS() { // modded from https://***stackoverflow.com/questions/38241480/detect-macos-ios-windows-android-and-linux-os-with-js	// ===> GET OS
  103. 		let platform = ( navigator.userAgentData !== undefined ? navigator.userAgentData.platform : window.navigator.platform ).toLowerCase();
  104. 		let macos_platforms = ['macos','macintosh','macintel','macppc','mac68k'], windows_platforms = ['win32','win64','windows','wince'], os = null;
  105. 		switch(true) {
  106. 			case macos_platforms.indexOf(platform) !== -1:		os = 'macos';	break;
  107. 			case windows_platforms.indexOf(platform) !== -1:	os = 'windows';	break;
  108. 			case !os && /Linux/.test(platform):					os = 'linux';	break;
  109. 		}
  110. 	  return os;
  111. 	}
  112. 	function newURL(link) { try { return new URL(link,document.baseURI); } catch( error ) { return new URL(encodeURI(link) ); } }							// ===> NEW URL
  113. 	function decodeURIComponentSafe(str) { if ( !str ) { return str; } // ===> DECODE URI COMPONENT SAFE; // Fix "%" error in file name; see stackoverflow.com/questions/7449588/why-does-decodeuricomponent-lock-up-my-browser
  114. 		try { return decodeURIComponent(str.replace(/%(?![0-9a-fA-F]{2})/g,'%25') ).replace(/\"/g,'\"');  } catch(e) { return str; }	// replace % with %25 if not followed by two a-f/number; replace " with html entity
  115. 	}
  116. 	function convertHex2Decimal(d) { return parseInt(d, 16); }
  117. 	function convertDecimal2Hex(d, padding) { let hex = Number(d).toString(16); hex = ( isNaN(hex) ? null :  "000000".substr(0, padding - hex.length) + hex ); return hex; }
  118. 	//==============================//
  119. 	const window_protocol = window.location.protocol;																										// GLOBAL: protocol
  120. 	  let window_location = decodeURIComponentSafe( [location.protocol, '//', location.host, location.pathname].join('') );									// GLOBAL: current location
  121. 	const current_dir_path = window_location.replace(/([/|_|—])/g,'$1<wbr>').replace(/\\/g,'/'); 															// GLOBAL: current dir path w/o query string for display
  122. 	//==============================//
  123. 	function setLocation(link) { window.location = link; }
  124. 	function changeLocation(args) { // args[0] === href, args[1] === 'external || ok'
  125. 		switch(true) {
  126. 			case args[1] === 'external': 										window.open(args[0]);											break;	// open external menu links: about, coffee, contact
  127. 			case args[1] === 'ok':												window.location = args[0];										break;
  128. 			case ( /has_\w+list/.test(getClassNames('body'))):		args = window.location.href;											// nobreak; show playlist warning
  129. 			default: 															showWarning( 'setLocation',args.toString() );
  130. 		}
  131. 	}
  132. 	function getSearchParams() 				{ let search_params = new URL(window.location).searchParams; search_params.sort(); return search_params; }			// ===> GET SEARCH PARAMS
  133. 	function searchParamSet(key,value,bool)		{ let search_params = getSearchParams(); search_params.set( key, value ); if ( bool !== false ) { updateSearchParams(search_params);} }	// ===> SET SEARCH PARAM (bool false = don't update)
  134. 	function searchParamDelete(key) 		{ let search_params = getSearchParams(); search_params.delete(key); 		updateSearchParams(search_params); }	// ===> REMOVE SEARCH PARAM
  135. 	function updateSearchParams(search_params) {																												// ===> UPDATE SEARCH PARAMS
  136. 		search_params = sanitizeSearchParams(search_params);		search_params.sort();																				// sort and sanitize params
  137. 		let search_params_str = search_params.toString().replace(/%2F/g,'').replace('/','').replace(/%2Cfalse/g,'');													// further sanitization
  138. 		let new_location = ( search_params_str.length === 0 ? window.location.pathname : window.location.pathname +'?'+ search_params_str );							// don't add ? if no search params
  139. 		window.history.replaceState({}, document.title, new_location);																									// set new location
  140. 		if ( isTopWindow() ) { updateParentLinks(); }
  141. 	}
  142. 	function sanitizeSearchParams(search_params_str) {																													// remove search_params that are not in UI_Settings
  143. 		for ( let entry of search_params_str.entries() ) { if ( !UI_Settings[entry[0]] && !/selected|history|width/.test(entry[0]) ) { search_params_str.delete(entry[0]); } }		return search_params_str;
  144. 	}
  145. 	function getCurrentUIPref(pref_id) {																														// ===> GET SEARCH PARAM value by key
  146. 		let search_params = getSearchParams(), value = '';
  147. 		switch(true) {
  148. 			case pref_id === 'width': if ( !isTopWindow() ) { return; } 																								// width: set the stored sidebar width or use default 30%
  149. 				value = ( !search_params.has(pref_id) || window.innerWidth === 0 ? 30 : Math.round(100 * Number.parseInt(search_params.get('width'))/window.innerWidth) ); 	break;	// percentage
  150. 			case pref_id === 'parent_id':
  151. 				value = ( search_params.has(pref_id) ? search_params.get(pref_id) : UI_Settings?.[pref_id] ? UI_Settings[pref_id].toString() : '' ); 						break;	//
  152. 			default: 																												// if query_string has key/value pair, use it, else use key/value pair from UI_Settings
  153. 				value = ( search_params.has(pref_id) ? search_params.get(pref_id) : UI_Settings?.[pref_id] ? UI_Settings[pref_id].toString() : pref_id );
  154. 				value = value?.replace('%2F','').replace('/',''); 																	// some servers add a '/' to end of query string
  155. 		}																																									return value;
  156. 	}
  157. 	function getNewUIPref(key) {
  158. 		let value, bool_prefs = Object.keys(UI_Prefs_Bool);
  159. 		let non_bool_prefs = {
  160. 			'sort_direction_ascending':		{'sort_direction':'descending'},		'sort_direction_descending':	{'sort_direction':'ascending'},			'sort_by_name':					{'sort_by':'name'},
  161. 			'sort_by_default':				{'sort_by':'default'},					'sort_by_duration':				{'sort_by':'duration'},					'sort_by_size':					{'sort_by':'size'},
  162. 			'sort_by_date':					{'sort_by':'date'},						'sort_by_kind':					{'sort_by':'kind'},						'sort_by_ext':					{'sort_by':'ext'},
  163. 			'texteditor_view':				{'texteditor_view':getCurrentUIPref('texteditor_view')},
  164. 			'texteditor_view_raw':			{'texteditor_view':'txt'},				'texteditor_view_preview':		{'texteditor_view':'preview'},			'texteditor_view_html':			{'texteditor_view':'html'},
  165. 			'theme':						{'theme':(getCurrentUIPref('theme') === 'light' ? 'dark' : 'light') },
  166. 			'theme_dark':					{'theme':'dark'},						'theme_light':					{'theme':'light'},
  167. 			'ui_font':						{'ui_font':getCurrentUIPref('ui_font')},'ui_scale':						{'ui_scale':getCurrentUIPref('ui_scale')}
  168. 		}
  169. 		switch(true) {
  170. 			case bool_prefs.includes(key):	return ( getCurrentUIPref(key) === 'true' ? [key,'false'] : [key,'true']);								 // toggle bool prefs
  171. 			default: value = Object.values( non_bool_prefs[key] ).toString(); key = Object.keys(non_bool_prefs[key]).toString(); return [key,value]; // get value for key; then key (i.e., don't redefine key before getting value)
  172. 		}
  173. 	}
  174. 	let str = '';																																	// global str var;
  175. 	function timeoutID() { return window.setTimeout( () => { str = ''; }, 1000 ); }															// ===> TIMEOUT ID: reset typed string to '' after 1.5 sec.
  176. 	//==============================//
  177. 	function getEl(sel) { try { return document.querySelector(sel); } catch (error) { return null; } }
  178. 	function getEls(sel) { try { return document.querySelectorAll(sel); } catch (error) { return null; } }
  179. 	function elExists(sel) { return ( document.querySelector(sel) !== null ? true : false ); }
  180. 	function fileNotFound(e,id) {
  181. 		if ( e.type === 'error') { if (id === 'audio') { addClass('#content_pane','has_audio_error'); setContentTitle('has_audio_error'); } else { addClass('#content_pane','content_error'); closeContent(); setContentTitle('error'); } }
  182. 	}
  183. 	function getVisibleElsBySelector(sel) {																									// ===> GET VISIBLE ELS BY SELECTOR // remove els with display:none or 0 width/height
  184. 		let els = Array.from( getEls(sel) ).filter( (el) => { let el_styles = window.getComputedStyle(el); return ( el_styles.getPropertyValue('display') !== 'none' || ( el.offsetWidth > 0 || el.offsetHeight > 0 ) ); });
  185. 		return els;
  186. 	}
  187. 	function getContentPaneData() { return getAttribute('#content_pane','data-content'); } 													// ===> GET CONTENT_PANE DATA content
  188. 	function hasContent(args) {																												// ===> HAS CONTENT?
  189. 		switch(true) {
  190. 			case args === undefined:		return ( hasClass('#content_pane','has_audio') || getContentPaneData() !== 'has_null' ? true : false );	// has any content
  191. 			case args.includes('audio'):	return ( hasClass('#content_pane','has_audio') && (args.includes('ignore') || getContentPaneData() === 'has_null') ? true : false );	// has audio only or ignore other content
  192. 			case args.includes('_'): 		return hasClass('#content_pane','has_'+args);
  193. 			default: return ( args.split(',').includes( getContentPaneData()?.split('_')[1] ) ? true : false );									// has named content (e.g., pdf, iframe)				
  194. 		}					
  195. 	}
  196. 	function initContentError(id,content_el_id) { if ( id !== 'close' ) { getEl(content_el_id).addEventListener('error',(e) => { fileNotFound(e,content_el_id); }); } }					// ===> INIT CONTENT ERROR
  197. 	//==============================//
  198. 	function getClassNames(sel) { return getEl(sel)?.className; }
  199. 	function hasClass(sel,classname) { let el = getEl(sel); return el?.classList.contains(classname); }																					// ===> HAS CLASS
  200. 	function addClass(sel,classname) { let els = Array.from(getEls(sel)), classes = classname.split(' ').filter(item => item); 	els?.forEach( el => el.classList.add(...classes) ); }	// ===> ADD CLASS
  201. 	function removeClass(sel,classname) {																																				// ===> REMOVE CLASS
  202. 		let els = Array.from(getEls(sel)), classes = ( classname?.split(' ')?.filter(item => item) || null );
  203. 		if ( classname === undefined || classes === null ) { els?.forEach( el => el.removeAttribute('class') ); } else { els?.forEach( el => el.classList.remove(...classes) ); }	// if no className provided, remove all classes
  204. 	}
  205. 	function addRemoveClassSiblings(sel,classname) {																																	// ===> ADD/REMOVE CLASS SIBLINGS
  206. 		let el = document.querySelector(sel), siblings =  el?.parentElement.children;
  207. 		if ( el !== null ) { Array.from(siblings).forEach( sibling => sibling.classList.remove(...classname.replace(/\s{2,}/g,' ').split(' ') ) ); addClass(sel,classname); } // remove class from els & add class to selected el
  208. 	}
  209. 	//==============================//
  210. 	function getAttribute(sel,attributeName) 		{ let el = getEl(sel); return el?.getAttribute(attributeName); }																	// ===> GET ATTRIBUTE
  211. 	function hasAttribute(sel,attributeName)		{ let el = getEl(sel); return el?.hasAttribute(attributeName); }																	// ===> HAS ATTRIBUTE
  212. 	function setAttribute(sel,attributeName,value)	{ let el = getEl(sel); el?.setAttribute(attributeName,value); }																		// ===> SET ATTRIBUTE
  213. 	function removeAttribute(sel,attributeNamesArr) {						 																											// ===> REMOVE ATTRIBUTE
  214. 		if ( typeof attributeNamesArr === 'string' ) { attributeNamesArr = [attributeNamesArr]; }
  215. 		let els = getEls(sel); 	Array.from(els)?.forEach( el => attributeNamesArr.forEach( attributeName => el.removeAttribute(attributeName) ) );
  216. 	}
  217. 	function getData(sel,keyname) 		{ let el = getEl(sel);	return  el.getAttribute('data-'+keyname); }
  218. 	function setData(sel,keyname,value) { let el = getEl(sel); 			el.setAttribute('data-'+keyname,value); }
  219. 	function setStyle(sel,property,value) { getEl(sel).style.setProperty(property,value); }
  220. 	function setValue(sel,value) { getEl(sel).value = value; }
  221. 	//==============================//
  222. 	function clickThis(sel) { let el = getEl(sel); ( el?.querySelector('a')?.click() || el?.click() ) }										// ===> CLICK THIS by CSS selector
  223. 	function altKey(e)			{ return ( !e.metaKey && !e.ctrlKey && e.altKey && !e.shiftKey ); }											// ===> ALT KEY test
  224. 	function altShiftKey(e)		{ return ( !e.metaKey && !e.ctrlKey && e.altKey && e.shiftKey ); }											// ===> ALT SHIFT KEY test
  225. 	function cmdKey(e)			{ return ( (e.metaKey || e.ctrlKey) && !e.altKey && !e.shiftKey ); }										// ===> CMD/CTRL KEY test
  226. 	function cmdAltKey(e)		{ return ( (e.metaKey || e.ctrlKey) && e.altKey && !e.shiftKey ); }											// ===> CMD/CTRL ALT KEY test
  227. 	function cmdShiftKey(e)		{ return ( (e.metaKey || e.ctrlKey) && !e.altKey && e.shiftKey ); }											// ===> CMD/CTRL SHIFT KEY test
  228. 	function eStopPrevent(e)	{ e?.preventDefault(); e?.stopPropagation(); }
  229. 	//============================//
  230. 	// ***** BASIC UI FUNCTIONS ***** //
  231. 	function isInViewport(sel) { const rect = ( getEl(sel) !== null ? getEl(sel).getBoundingClientRect() : null ); if ( rect === null ) { return false; }
  232. 	    return ( rect.top >= getEl('#dir_header').offsetHeight && rect.bottom <= (window.innerHeight - getEl('#dir_footer').offsetHeight || document.documentElement.clientHeight - getEl('#dir_footer').offsetHeight) );
  233. 	}
  234. 	function scrollThis(container_ID, sel, bool) {																							// ===> SCROLL to Selected Item
  235. 		let container = getEl(container_ID);
  236. 		if ( container?.height === 0 || isInViewport(sel) ) { return; } 																									// don't scroll hidden elements
  237. 		let scroll_el = container?.querySelector(sel), scroll_behavior = ( ( bool !== undefined || bool === true ) ? 'instant' : 'smooth' ), scroll_block = ( hasClass('body','is_gecko') ? 'start' : 'nearest' );
  238. 		scroll_el?.scrollIntoView({ behavior:scroll_behavior, block:scroll_block, inline:'nearest' });
  239. 	}
  240. 	function mouseMove(e,sel,startX,startY,elOffsetLeft,elOffsetTop) {																		// ===> Init events to allow glyphs to be dragged into view
  241. 		let scale_factor = ( sel === '#font_specimen_glyph' ? 2 : 1 );																				// scale_factor needed for svg glyphs
  242. 		setStyle(sel,'left',elOffsetLeft + (e.pageX - startX)*scale_factor + 'px'); setStyle(sel,'top',elOffsetTop + (e.pageY - startY)*scale_factor +'px');
  243. 	}
  244. 	//==============================// OPEN/SAVE FILES
  245. 	function openFile(args) { menuClose();																									// ===> OPEN FILE; type: font or playlist.
  246. 		if ( window.File && window.FileReader && window.FileList && window.Blob ) {																						// if browser supports file API...
  247. 			let files = args[0].target.files[0], id = args[1], reader = new FileReader();
  248. 			switch(id) { case 'open_font': reader.readAsArrayBuffer(files);	break;		case 'open_playlist': reader.readAsText(files);						break; }	// get the file reader
  249. 			reader.onload = () => {																																		// on file reader load
  250. 				switch(true) {
  251. 					case id === 'open_font':	 openFontFile(files,reader);					break;
  252. 					case id === 'open_playlist': openPlaylist(files.name,'',reader.result);		break;
  253. 				}	// open the file
  254. 				return true;
  255. 			}
  256. 			getEl('#'+id).value = ''; 																										// reset input to allow same item to be reopened immediately after closing
  257. 		} else { alert('Can\'t open file: file APIs are not fully supported in this browser.'); }											// else error
  258. 	}
  259. 	function saveFile(content,mimetype,file_name) {																							// ===> SAVE FILE
  260. 		let blob = new Blob([content], {type: mimetype});
  261. 		let download_el = window.document.createElement('a'); download_el.style = "display:none"; download_el.href = window.URL.createObjectURL(blob); download_el.download = file_name;	// define & style download_el
  262. 		document.body.appendChild(download_el);		download_el.click();	document.body.removeChild(download_el);		URL.revokeObjectURL(blob);											// add download_el, click, & remove
  263. 	}
  264. 	// END UTILITIES
  265. 	//==============================//
  266. 	// ***** SET UP UI ELEMENTS ***** //
  267. 	function updateParentLinkSearchParams(str) { //*** decrement selected and history values ***//											// ===> UPDATE PARENT LINK SEARCH PARAMS
  268. 		let query_str = new URLSearchParams(str); 	query_str.sort();																				// make new search params from window.location.search
  269. 		let history = ( query_str.has('history') ? query_str.get('history') : undefined );
  270. 		switch(true) {
  271. 			case history !== undefined:
  272. 				history = history.split(' ');
  273. 				switch(true) {
  274. 					case history.length > 1:	query_str.set('selected',history[0]); 	history.shift(); 	query_str.set('history',history.join('+')); break;
  275. 					case history.length === 1:	query_str.set('selected',history[0]); 	history.shift();	query_str.delete('history'); break;
  276. 				}
  277. 				break;
  278. 			default: query_str.delete('selected');
  279. 		}
  280. 		return decodeURIComponentSafe(query_str.toString());
  281. 	}
  282. 	function createParentLinks() {																											// ===> CREATE PARENT LINKS
  283. 		let link, links = [], search_params = getSearchParams();	search_params.sort();
  284. 		let query_str = search_params.toString();
  285. 		let link_pieces = window_location.split('/');	link_pieces = link_pieces.slice(2,-2); 	// make array of parent directories; remove beginning and ending empty elements and current directory
  286. 		while ( link_pieces.length > 0 ) {															 												// while there are link pieces...
  287. 			query_str = updateParentLinkSearchParams(query_str); 																					// update selected and history
  288. 			link = window_protocol +'//'+ link_pieces.join('/') + '/?' + query_str;		links.push(link);	link_pieces.pop();						// assemble link; add to link array; remove last link piece and repeat...
  289. 		}
  290. 		return links;
  291. 	}
  292. 	function createParentLinkItems() {																										// ===> CREATE PARENT LINK ITEMS
  293. 		let parent_link_menu_items = [], links = createParentLinks();
  294. 		for ( let i = 0; i < links.length; i++ ) {
  295. 			let display_name = links[i].split('/?')[0]; 	display_name = display_name.replace(/\//g,'\/<wbr>');
  296. 			let menu_item = `<li><a id="parents_link_${i}" href="${ links[i] }" class="display_block padding_4_8">${ display_name }/</a></li>`;
  297. 			parent_link_menu_items.push(menu_item);
  298. 		}
  299. 		let parent_link = ( links[0] === undefined ? window.location.href : links[0]);	parent_link = parent_link.replace(/parents_link_/,'parent_link_');
  300. 		return [parent_link_menu_items.join(''),parent_link];																						// return parents link items
  301. 	}
  302. 	function updateParentLinks() { 																															// ===> UPDATE PARENT LINKS and init new item events
  303. 		let links = createParentLinkItems();	getEl('#parents_links').innerHTML = links[0]; 		getEl('#parent_dir_nav a').href = links[1]; 					// add the links
  304. 		getEls('#dir_menu_parent a,#parents_links a').forEach( el => el.onclick = function(e) { eStopPrevent(e); showWarning('changeLocation',[this.href,'false']); });		// reinit onclick
  305. 	}
  306. 	//==============================//
  307. 	// SVG UI ICONS
  308. 	const SVG_UI_Icons = {
  309. 		'arrow':				'<svg viewBox=\'0 0 20 20\' xmlns=\'http://www.w3.org/2000/svg\' class=\'invert\'><path fill=\'%23888\' fill-opacity=\'.75\' d=\'m4 4 12 6-12 6z\'/></svg>',
  310. 		'bookmark':				'<svg viewBox=\'0 0 20 20\' xmlns=\'http://www.w3.org/2000/svg\' class=\'invert\'><path fill=\'%23888\' d=\'m2 2c0-1.1.9-2 2-2h12a2 2 0 0 1 2 2v18l-8-4-8 4zm2 0v15l6-3 6 3v-15z\'/></svg>',
  311. 		'check_mark':			'<svg viewBox=\'0 0 12 9\' xmlns=\'http://www.w3.org/2000/svg\'><path fill=\'currentColor\' d=\'m-.071 10.929 2.571-2.571 4.5 4.499 10.285-10.285 2.571 2.572-12.856 12.856z\' transform=\'matrix(.55 0 0 .55 .578932 -1.01245)\'/></svg>',
  312. 		'chevron':				'<svg viewBox=\'0 0 24 14\' id=\'svg_chevron\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0v14h3v-11h11v-3z\' transform=\'matrix(.707107 .707107 -.707107 .707107 11.8995 1)\'/></svg>',
  313. 		'document':				'<svg viewBox=\'0 0 20 20\' xmlns=\'http://www.w3.org/2000/svg\'><path fill=\'%23222222\' d=\'M4 18h12V6h-4V2H4v16zm-2 1V0h12l4 4v16H2v-1z\' /></svg>',
  314. 		'error':				'<svg viewBox=\'0 0 20 20\' xmlns=\'http://www.w3.org/2000/svg\'><g fill-opacity=\'.75\'><path d=\'m1.075 18.05 8.146-16.683c.236-.484.924-.491 1.169-.011l8.537 16.683c.223.435-.093.952-.582.952h-16.683c-.483 0-.799-.507-.587-.941z\' fill=\'%23ffb636\' /><path d=\'m11.055 7.131-.447 6.003c-.034.45-.425.787-.874.753-.408-.03-.724-.356-.753-.753l-.447-6.003c-.052-.696.47-1.302 1.167-1.354.696-.052 1.302.47 1.354 1.166.005.061.004.129 0 .188zm-1.26 8.037c-.641 0-1.159.518-1.159 1.158 0 .641.518 1.159 1.159 1.159.64 0 1.158-.518 1.158-1.159 0-.64-.518-1.158-1.158-1.158z\'/></g></svg>',
  315. 		'external_link':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'M10.443,2.5l-3.439,-0l0,-1.5l5.996,0l0,6.02l-1.5,0l0,-3.455l-5.716,5.715l-1.06,-1.06l5.719,-5.72Zm1.057,5.5l-0,5l-10.5,0l-0,-10.5l5,0l-0,1.5l-3.5,0l-0,7.5l7.5,0l-0,-3.5l1.5,0Z\' style=\'fill:%23888;\'/></svg>',
  316. 		'folder':				'<svg viewBox=\'0 0 20 20\'><path fill=\'%23222\' d=\'m0 4c0-1.1.9-2 2-2h7l2 2h7a2 2 0 0 1 2 2v10a2 2 0 0 1 -2 2h-16a2 2 0 0 1 -2-2zm2 2v10h16v-10z\'/></svg>',
  317. 		'grid':					'<svg viewBox=\'0 0 20 20\'><path fill=\'currentColor\' d=\'M0 0h9v9H0V0zm2 2v5h5V2H2zm-2 9h9v9H0v-9zm2 2v5h5v-5H2zm9-13h9v9h-9V0zm2 2v5h5V2h-5zm-2 9h9v9h-9v-9zm2 2v5h5v-5h-5z\' /></svg>',
  318. 		'menu':					'<svg viewBox=\'0 0 13 10\'><g fill=\'%23222\'><path d=\'m0 0h13v2h-13z\'/><path d=\'m0 4h13v2h-13z\'/><path d=\'m0 8h13v2h-13z\'/></g></svg>',
  319. 		'minus':				'<svg viewBox=\'0 0 20 20\'><path fill=\'%23222\' d=\'m1 8h18v4h-18z\'/></svg>',
  320. 		'multiply':				'<svg viewBox=\'0 0 20 20\' id=\'svg_multiply\'><path fill=\'%23222\' d=\'m10 7 6-6 3 3-6 6 6 6-3 3-6-6-6 6-3-3 6-6-6-6 3-3z\'/></svg>',
  321. 		'music':				'<svg width=\'100%\' height=\'100%\' viewBox=\'0 0 84 84\' version=\'1.1\' xmlns=\'http://www.w3.org/2000/svg\' xml:space=\'preserve\' style=\'fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;\'><path d=\'M66.613,58.258c-0,3.775 -1.721,6.934 -5.163,9.475c-3.154,2.309 -6.683,3.463 -10.588,3.463c-2.283,-0 -4.158,-0.538 -5.616,-1.617c-1.621,-1.229 -2.429,-2.95 -2.429,-5.158c-0,-3.492 1.658,-6.558 4.966,-9.204c3.134,-2.488 6.496,-3.734 10.088,-3.734c3.029,0 5.237,0.605 6.625,1.809l-0,-39.538l-28.146,7.584l-0,44.891c-0,3.775 -1.721,6.929 -5.158,9.471c-3.159,2.313 -6.688,3.467 -10.588,3.467c-2.287,-0 -4.158,-0.542 -5.625,-1.617c-1.617,-1.233 -2.425,-2.954 -2.425,-5.158c0,-3.492 1.658,-6.559 4.967,-9.204c3.133,-2.488 6.496,-3.734 10.087,-3.734c3.029,0 5.238,0.604 6.621,1.809l0,-48.355l32.383,-8.741l0.001,54.091Z\' style=\'fill:%23888;fill-opacity:0.4;fill-rule:nonzero;\'/></svg>',
  322. 		'plus':					'<svg viewBox=\'0 0 20 20\'><path fill=\'%23222\' d=\'m8.001 1h3.999v7h7v4h-7l-.001 7h-3.999v-7h-7v-4h7z\'/></svg>',
  323. 		'prev_next_track':		'<svg viewBox=\'0 0 20 20\'><path fill=\'%23222\' d=\'m13 5h2v10h-2zm-8 0 8 5-8 5z\'/></svg>',
  324. 		'spinner':				'<svg viewBox=\'0 0 100 100\' class=\'display_none invert\' preserveAspectRatio=\'xMidYMid\' width=\'32\' height=\'32\' xmlns=\'http://www.w3.org/2000/svg\' id=\'loading_spinner\'><animateTransform attributeName=\'transform\' type=\'rotate\' values=\'0;45\' keyTimes=\'0;1\' dur=\'0.25s\' repeatCount=\'indefinite\'/><path fill=\'%23000\' fill-opacity=\'.66\' d=\'m29.49-5.5h8v11h-8a30 30 0 0 1 -4.75 11.46l5.66 5.66-7.78 7.78-5.66-5.66a30 30 0 0 1 -11.46 4.75v8h-11v-8a30 30 0 0 1 -11.46-4.75l-5.66 5.66-7.78-7.78 5.66-5.66a30 30 0 0 1 -4.75-11.46h-8v-11h8a30 30 0 0 1 4.75-11.46l-5.66-5.66 7.78-7.78 5.66 5.66a30 30 0 0 1 11.46-4.75v-8h11v8a30 30 0 0 1 11.46 4.75l5.66-5.66 7.78 7.78-5.66 5.66a30 30 0 0 1 4.75 11.46m-29.49-14.5a20 20 0 1 0 0 40 20 20 0 1 0 0-40\' transform=\'matrix(.7189408 .69507131 -.69507131 .7189408 50 50)\'/></svg>',
  325. 		'toggle':				'<svg viewBox=\'0 0 20 20\'><g fill=\'%23222\'><path d=\'m10.207 9.293-.707.707 5.657 5.657 1.414-1.414-4.242-4.243 4.242-4.243-1.414-1.414z\'/><path d=\'m4.207 9.293-.707.707 5.657 5.657 1.414-1.414-4.242-4.243 4.242-4.243-1.414-1.414z\'/></g></svg>',
  326. 		'ui_layout':			'<svg width=\'100px\' height=\'100%\' viewBox=\'0 0 50 39\' version=\'1.1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' xml:space=\'preserve\' xmlns:serif=\'http://www.serif.com/\' style=\'fill-rule:evenodd;clip-rule:evenodd;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:1.5;\'><rect x=\'0.5\' y=\'0.5\' width=\'14.5\' height=\'38\' style=\'fill:rgb(204,204,204);\'/><path d=\'M50,0L50,39L0,39L0,0L50,0ZM49,1L1,1L1,38L49,38L49,1Z\'/><path d=\'M15,0.5L15,38.5\' style=\'fill:none;stroke:black;stroke-width:1px;\'/><g transform=\'matrix(1,0,0,1,0,1.5)\'><path d=\'M0.5,5L15,5\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,15.0936,-0.5)\'><path d=\'M0,5L34.406,5\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g><g transform=\'matrix(1,0,0,1,0,1.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,1.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,3.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,5.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,7.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,9.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,11.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,13.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,15.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,17.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,19.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,21.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,23.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,25.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,27.5)\'><path d=\'M2.5,7L3,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><path d=\'M0.5,36.5L15,36.5\' style=\'fill:none;stroke:black;stroke-width:1px;\'/><g transform=\'matrix(1,0,0,1,0,1.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,3.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,5.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,7.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,9.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,11.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,13.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,15.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,17.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,19.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,21.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,23.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,25.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g><g transform=\'matrix(1,0,0,1,0,27.5)\'><path d=\'M5,7L13,7\' style=\'fill:none;stroke:black;stroke-width:1px;\'/></g></g><g class=\'invert\'><g transform=\'matrix(1.42857,0,0,1.42857,22.5,10.5)\'><path d=\'M0.369,9.141C0.117,8.463 0,7.745 0,7C0,3.137 3.137,0 7,0C10.863,0 14,3.137 14,7L13.863,8.353L10.01,4.5L6.51,8L4.01,5.5L0.369,9.141Z\' style=\'fill:rgb(128,128,255);fill-rule:nonzero;\'/></g><g transform=\'matrix(1.42857,0,0,1.42857,22.5,10.5)\'><path d=\'M0.839,10.151L0.369,9.141L4.01,5.5L6.51,8L10.01,4.5L13.863,8.353C13.787,8.748 13.662,9.131 13.522,9.5L3.151,12.845C2.858,12.651 2.572,12.429 2.313,12.194L0.839,10.151Z\' style=\'fill:white;fill-rule:nonzero;\'/></g><g transform=\'matrix(1.42857,0,0,1.42857,22.5,10.5)\'><path d=\'M13.522,9.5C12.532,12.14 9.983,14 7,14C5.574,14 4.247,13.579 3.151,12.845L10.01,5.979L13.522,9.5Z\' style=\'fill:rgb(51,51,204);fill-rule:nonzero;\'/></g><g transform=\'matrix(1.42857,0,0,1.42857,22.5,10.5)\'><path d=\'M0.839,10.151L4.01,6.979L5.771,8.74L2.312,12.194C1.721,11.562 1.233,10.881 0.839,10.151Z\' style=\'fill:rgb(51,51,204);fill-rule:nonzero;\'/></g><g transform=\'matrix(1.42857,0,0,1.42857,22.5,10.5)\'><circle cx=\'6\' cy=\'3.5\' r=\'1.5\' style=\'fill:white;\'/></g></g></svg>'
  327. 	}; 
  328. 	function get_SVG_UI_Icon(icon_name) 				{ return `url("data:image/svg+xml;utf8,${ SVG_UI_Icons[icon_name] }")`; }
  329. 	const SVG_UI_File_Icons = { // n.b.: order is important
  330. 		'file_icon_dir':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m6 2.5-1-1.5h-5v12h14v-10.5z\' fill=\'%2339f\'/><path d=\'m1.5 4h11v7.5h-11z\' fill=\'%239cf\'/></svg>',
  331. 		'file_icon_dir_open':		'<svg viewBox=\'0 0 14 14\' clip-rule=\'evenodd\' fill-rule=\'evenodd\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m6.1 2.7-1.3-1.7h-4.8v12h14v-10.3z\' fill=\'%2339f\' fill-rule=\'nonzero\'/><path d=\'m7 6h5.5v5.5h-11z\' fill=\'%239cf\'/></svg>',
  332. 		'file_icon_file':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m8.3 0h-6.8v14h11v-9.8l-4.2-4.2z\' fill=\'%23888\'/><g fill=\'%23fff\'><path d=\'m11 12.5h-8v-11h3.8v4.2h4.2z\'/><path d=\'m8.3 4.2h1.9l-1.9-2z\'/></g></svg>',
  333. 		'file_icon_invisible':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m8.3 0h-6.8v14h11v-9.8l-4.2-4.2z\' fill=\'%23888\'/><path d=\'m11 12.5h-8v-11h3.8v4.2h4.2z\' fill=\'%23bbb\'/><path d=\'m8.3 4.2h1.9l-1.9-2z\' fill=\'%23bbb\'/><circle cx=\'7\' cy=\'9\' fill=\'%23878787\' r=\'1.5\'/></svg>',
  334. 		'file_icon_ignored':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'M 10.695,1.774 1.856,10.613 3.482,12.239 12.321,3.4 Z M 7,2 c 2.8,0 5,2.2 5,5 0,2.8 -2.2,5 -5,5 C 4.2,12 2,9.8 2,7 2,4.2 4.2,2 7,2 M 7,0 C 3.1,0 0,3.1 0,7 c 0,3.9 3.1,7 7,7 3.9,0 7,-3.1 7,-7 C 14,3.1 10.9,0 7,0 Z\' style=\'fill:%23888888;fill-opacity:1\' /></svg>',
  335. 		'file_icon_dirinvisible':	'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m6 2.5-1-1.5h-5v12h14v-10.5z\' fill=\'%23888\'/><path d=\'m1.5 4h11v7.5h-11z\' fill=\'%23bbb\'/><circle cx=\'7\' cy=\'7.5\' fill=\'%23888\' r=\'1.5\'/></svg>',
  336. 		'file_icon_alias':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h14v14h-14z\' fill=\'%23808080\'/><path d=\'m3 12.5c0-3.863 2.253-7.5 6.259-7.5\' fill=\'none\' stroke=\'%23fc6\' stroke-width=\'3\'/><path d=\'m13 5-4-4v8z\' fill=\'%23fc6\'/></svg>',
  337. 		'file_icon_archive':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m11 8.5v-1h2v2l-5 1h-2v1.5h4v1h-4v1h-3v-1h-2v-1h2v-1.5h-2v-2h2v-6.5h-2v-2h7l5 1v2h-2v-1h-5v6.5z\' fill=\'%23666\'/></svg>',
  338. 		'file_icon_app':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m6.125 0-.292 1.859c-.587.135-1.146.38-1.64.693v-.018l-1.532-1.094-1.221 1.221 1.094 1.532h.018c-.313.495-.559 1.051-.693 1.64l-1.859.292v1.75l1.859.292c.134.589.38 1.145.693 1.64h-.018l-1.094 1.532 1.221 1.221 1.532-1.094v-.018c.494.313 1.053.558 1.64.693l.292 1.859h1.75l.292-1.859c.596-.137 1.14-.372 1.64-.693l1.532 1.112 1.221-1.221-1.112-1.532c.309-.492.523-1.057.656-1.64l1.896-.292v-1.75l-1.896-.292c-.133-.583-.347-1.148-.656-1.64h.018l1.094-1.532-1.221-1.221-1.532 1.094v.018c-.5-.321-1.044-.556-1.64-.693l-.292-1.859h-1.75zm.875 4.667c1.288 0 2.333 1.036 2.333 2.333s-1.045 2.333-2.333 2.333-2.333-1.036-2.333-2.333 1.045-2.333 2.333-2.333z\' fill=\'%237a7ab8\'/></svg>',
  339. 		'file_icon_audio':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><circle cx=\'7\' cy=\'7\' fill=\'%230f8a8a\' r=\'7\'/><g fill=\'%23fff\'><path d=\'m11 9.5c-.019.681-.796 1.339-1.75 1.475-.966.138-1.75-.31-1.75-1s.784-1.362 1.75-1.5c.268-.038.523-.031.75.013v-4.488h-4v6.5c-.019.681-.796 1.339-1.75 1.475-.966.138-1.75-.31-1.75-1s.784-1.362 1.75-1.5c.268-.038.523-.031.75.013v-6.488l6-1z\'/><path d=\'m11 2-6 1v2l6-1z\'/></g></svg>',
  340. 		'file_icon_code':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 0h-14v14h14z\' fill=\'%2372d\'/><g fill=\'%23fff\'><path d=\'m5.923 12.965c-1.049 0-1.784-.161-2.209-.48-.425-.317-.638-.82-.638-1.503v-2.067c0-.446-.146-.764-.438-.95-.292-.188-.709-.281-1.256-.281v-1.368c.547 0 .967-.094 1.259-.28s.438-.5.438-.938v-2.092c0-.675.217-1.172.65-1.491.432-.32 1.164-.479 2.195-.479v1.312c-.401.01-.718.09-.952.24-.233.15-.348.426-.348.827v1.985c0 .876-.511 1.396-1.532 1.559v.083c1.021.154 1.532.67 1.532 1.544v1.997c0 .41.116.688.349.835.233.146.55.223.951.232z\'/><path d=\'m8.076 12.965v-1.313c.392-.009.706-.089.944-.239.236-.15.355-.426.355-.829v-1.996c0-.867.511-1.382 1.531-1.545v-.084c-1.02-.164-1.53-.679-1.53-1.546v-1.997c0-.41-.116-.688-.349-.834-.232-.146-.549-.224-.951-.233v-1.313c1.049 0 1.785.159 2.21.479.423.319.637.821.637 1.505v2.065c0 .447.146.765.438.951.292.187.711.28 1.257.28v1.367c-.546.012-.967.107-1.259.287-.293.183-.438.5-.438.945v2.08c0 .674-.217 1.172-.65 1.491-.432.319-1.165.479-2.195.479z\'/></g></svg>',
  341. 		'file_icon_database':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 2.5v9c0 1.38-3.137 2.5-7 2.5s-7-1.12-7-2.5v-9\' fill=\'%23808080\'/><path d=\'m13 2.5v9c0 .828-2.689 1.5-6 1.5s-6-.672-6-1.5v-9\' fill=\'%23b4b4b4\'/><path d=\'m14 8.5c0 1.38-3.137 2.5-7 2.5s-7-1.12-7-2.5\' fill=\'%23808080\'/><path d=\'m13 8.5c0 .828-2.689 1.5-6 1.5s-6-.672-6-1.5\' fill=\'%23b4b4b4\'/><path d=\'m14 5.5c0 1.38-3.137 2.5-7 2.5s-7-1.12-7-2.5\' fill=\'%23808080\'/><path d=\'m13 5.5c0 .828-2.689 1.5-6 1.5s-6-.672-6-1.5\' fill=\'%23b4b4b4\'/><ellipse cx=\'7\' cy=\'2.5\' fill=\'%23808080\' rx=\'7\' ry=\'2.5\'/><ellipse cx=\'7\' cy=\'2.5\' fill=\'%23b4b4b4\' rx=\'5.5\' ry=\'1.5\'/></svg>',
  342. 		'file_icon_ebook':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m2.668-.001c1.705.001 3.492.35 4.332 1.257.84-.908 2.627-1.256 4.332-1.257h2.668v12.541c-.818 0-2.181.005-3 .023-1.184.026-3.008.42-3 1.437l-1-.017-1 .017c.008-1.017-2-1.437-3-1.437-.819 0-2.182-.023-3-.023v-12.541h2.668z\' fill=\'%23808080\'/><g fill=\'%23cdcdcd\'><path d=\'m1.5 1.499v9.501h1.286c1.086.025 2.213.081 3.204.568l.01.006c0-2.859 0-5.717 0-8.576 0-1.136-1.49-1.398-2.336-1.47-.708-.059-1.438-.029-2.164-.029z\'/><path d=\'m12.5 1.499v9.501h-1.286c-1.086.025-2.213.081-3.204.568l-.01.006c0-2.859 0-5.717 0-8.576 0-1.136 1.49-1.398 2.336-1.47.708-.059 1.438-.029 2.164-.029z\'/></g></svg>',
  343. 		'file_icon_font':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 0h-14v14h14z\' fill=\'%23709\'/><path d=\'m4.678 11.179h1.393v-8.266h-2.616v1.052h-1.455v-2.553h10v2.554h-1.456v-1.053h-2.599v8.266h1.347v1.409h-4.614z\' fill=\'%23fff\'/></svg>',
  344. 		'file_icon_graphics':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h14v14h-14z\' fill=\'%23808080\'/><path d=\'m7.774 8.285 4.726 4.715-8-3.525-1.5-4.975h-2v-3.5h3.525l-.025 2 5 1.5 3.5 8-4.7-4.752c.127-.22.2-.476.2-.748 0-.828-.672-1.5-1.5-1.5s-1.5.672-1.5 1.5.672 1.5 1.5 1.5c.283 0 .548-.079.774-.215z\' fill=\'%23ccc\'/></svg>',
  345. 		'file_icon_htm':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m6.967.5c-3.553.018-6.467 2.947-6.467 6.5 0 3.566 2.934 6.5 6.5 6.5s6.5-2.934 6.5-6.5c0-3.553-2.914-6.482-6.467-6.5zm.033 0v13m6.5-6.5h-13m1.467-4c3.004 2.143 7.062 2.143 10.066 0m0 8c-3.004-2.143-7.062-2.143-10.066 0m4.533-10.333c-1.874 1.582-2.957 3.914-2.957 6.366 0 2.453 1.083 4.785 2.957 6.367m1 0c1.874-1.582 2.957-3.914 2.957-6.367 0-2.452-1.083-4.784-2.957-6.366\' fill=\'%23fff\' stroke=\'%23e44d26\'/></svg>',
  346. 		'file_icon_ignoredimage':	'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m.369 9.141c-.252-.678-.369-1.396-.369-2.141 0-3.863 3.137-7 7-7s7 3.137 7 7l-.137 1.353-3.853-3.853-3.5 3.5-2.5-2.5z\' fill=\'%23808080\'/><path d=\'m.839 10.151-.47-1.01 3.641-3.641 2.5 2.5 3.5-3.5 3.853 3.853c-.076.395-.201.778-.341 1.147l-10.371 3.345c-.293-.194-.579-.416-.838-.651z\' fill=\'%23fff\'/><path d=\'m13.522 9.5c-.99 2.64-3.539 4.5-6.522 4.5-1.426 0-2.753-.421-3.849-1.155l6.859-6.866z\' fill=\'%23808080\'/><path d=\'m.839 10.151 3.171-3.172 1.761 1.761-3.459 3.454c-.591-.632-1.079-1.313-1.473-2.043z\' fill=\'%23808080\'/><circle cx=\'6\' cy=\'3.5\' fill=\'%23fff\' r=\'1.5\'/></svg>',
  347. 		'file_icon_image':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m.369 9.141c-.252-.678-.369-1.396-.369-2.141 0-3.863 3.137-7 7-7s7 3.137 7 7l-.137 1.353-3.853-3.853-3.5 3.5-2.5-2.5z\' fill=\'%238080ff\'/><path d=\'m.839 10.151-.47-1.01 3.641-3.641 2.5 2.5 3.5-3.5 3.853 3.853c-.076.395-.201.778-.341 1.147l-10.371 3.345c-.293-.194-.579-.416-.838-.651z\' fill=\'%23fff\'/><path d=\'m13.522 9.5c-.99 2.64-3.539 4.5-6.522 4.5-1.426 0-2.753-.421-3.849-1.155l6.859-6.866z\' fill=\'%2333c\'/><path d=\'m.839 10.151 3.171-3.172 1.761 1.761-3.459 3.454c-.591-.632-1.079-1.313-1.473-2.043z\' fill=\'%2333c\'/><circle cx=\'6\' cy=\'3.5\' fill=\'%23fff\' r=\'1.5\'/></svg>',
  348. 		'file_icon_markdown':		'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 0h-14v14h14z\' fill=\'%236a6a95\'/><path d=\'m12 11.5h-2.5v-5.143l-2.5 2.948-2.5-2.948v5.143h-2.5v-9h2.273l2.721 3.377 2.733-3.377h2.273z\' fill=\'%23ddd\'/></svg>',
  349. 		'file_icon_office':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h14v14h-14z\' fill=\'%23808080\'/><g fill=\'%23cdcdcd\'><path d=\'m10 1.5h2.5v1h-2.5z\'/><path d=\'m10 4h2.5v1h-2.5z\'/><path d=\'m10 6.5h2.5v1h-2.5z\'/><path d=\'m10 9h2.5v1h-2.5z\'/><path d=\'m10 11.5h2.5v1h-2.5z\'/><path d=\'m6.5 1.5h2.5v1h-2.5z\'/><path d=\'m6.5 4h2.5v1h-2.5z\'/><path d=\'m6.5 6.5h2.5v1h-2.5z\'/><path d=\'m6.5 9h2.5v1h-2.5z\'/><path d=\'m6.5 11.5h2.5v1h-2.5z\'/><path d=\'m1.5 1.5h4v11h-4z\'/></g></svg>',
  350. 		'file_icon_pdf':			'<svg clip-rule=\'evenodd\' fill-rule=\'evenodd\' viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h13.999986v13.999986h-13.999986z\' fill=\'%23e0382d\' stroke-width=\'.259259\'/><path d=\'m45 31.2c-2.6-2.7-9.7-1.6-11.4-1.4-2.5-2.4-4.2-5.3-4.8-6.3.9-2.7 1.5-5.4 1.6-8.3 0-2.5-1-5.2-3.8-5.2-1 0-1.9.6-2.4 1.4-1.2 2.1-.7 6.3 1.2 10.6-1.1 3.1-2.1 6.1-4.9 11.4-2.9 1.2-9 4-9.5 7-.2.9.1 1.8.8 2.5.7.6 1.6.9 2.5.9 3.7 0 7.3-5.1 9.8-9.4 2.1-.7 5.4-1.7 8.7-2.3 3.9 3.4 7.3 3.9 9.1 3.9 2.4 0 3.3-1 3.6-1.9.5-1 .2-2.1-.5-2.9zm-2.5 1.7c-.1.7-1 1.4-2.6 1-1.9-.5-3.6-1.4-5.1-2.6 1.3-.2 4.2-.5 6.3-.1.8.2 1.6.7 1.4 1.7zm-16.7-20.6c.2-.3.5-.5.8-.5.9 0 1.1 1.1 1.1 2-.1 2.1-.5 4.2-1.2 6.2-1.5-4-1.2-6.8-.7-7.7zm-.2 19.4c.8-1.6 1.9-4.4 2.3-5.6.9 1.5 2.4 3.3 3.2 4.1 0 .1-3.1.7-5.5 1.5zm-5.9 4c-2.3 3.8-4.7 6.2-6 6.2-.2 0-.4-.1-.6-.2-.3-.2-.4-.5-.3-.9.3-1.4 2.9-3.3 6.9-5.1z\' fill=\'%23fff\' fill-rule=\'nonzero\' transform=\'matrix(.344737 0 0 .35503 -2.77114 -2.5503)\'/></svg>',
  351. 		'file_icon_playlist':		'<svg viewBox=\'0 0 14 14\' clip-rule=\'evenodd\' fill-rule=\'evenodd\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h14v14h-14z\' fill=\'%23888\' fill-rule=\'nonzero\'/><path d=\'m1.5 1.5h8v1h-8zm0 2.5h8v1h-8zm0 2.5h8v1h-8zm0 2.5h7v1h-7zm0 2.5h5.5v1h-5.5zm9.5-10h1v10c-.019.681-.796 1.339-1.75 1.475-.966.138-1.75-.31-1.75-1s.784-1.362 1.75-1.5a2.28 2.28 0 0 1 .75.013z\' fill=\'%23fff\'/></svg>',
  352. 		'file_icon_text':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 0h-14v14h14z\' fill=\'%236a6a95\'/><g fill=\'%23fff\'><path d=\'m6.5 1.5h6v1h-6z\'/><path d=\'m1.5 1.5h3.5v3.5h-3.5z\'/><path d=\'m1.5 6.5h11v1h-11z\'/><path d=\'m6.5 4h6v1h-6z\'/><path d=\'m1.5 11.5h8v1h-8z\'/><path d=\'m1.5 9h11v1h-11z\'/></g></svg>',
  353. 		'file_icon_video':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m14 14v-14h-14v14z\'/><g fill=\'%23fff\'><path d=\'m9.5 3v-2h-2v2z\'/><path d=\'m3.5 3v-2h-2v2z\'/><path d=\'m6.5 3v-2h-2v2z\'/><path d=\'m12.5 3v-2h-2v2z\'/><path d=\'m9.5 13v-2h-2v2z\'/><path d=\'m3.5 13v-2h-2v2z\'/><path d=\'m6.5 13v-2h-2v2z\'/><path d=\'m12.5 13v-2h-2v2z\'/></g><path d=\'m12.5 10v-6h-11v6z\' fill=\'%23eda412\'/></svg>',
  354. 		'file_icon_bin': '', 		'file_icon_other': '',		// <-- these two use file_icon_system:
  355. 		'file_icon_system':			'<svg viewBox=\'0 0 14 14\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m0 0h14v14h-14z\' fill=\'%23808080\'/><g fill=\'%23ccc\'><path d=\'m1.247 6.495h3.263v-1.067h-.881v-3.835h-.974c-.371.232-.727.371-1.284.479v.82h.928v2.536h-1.052z\'/><path d=\'m7 6.588c1.082 0 1.825-.89 1.825-2.567 0-1.67-.743-2.521-1.825-2.521s-1.825.843-1.825 2.521c0 1.677.743 2.567 1.825 2.567zm0-1.021c-.309 0-.572-.247-.572-1.546s.263-1.5.572-1.5.572.201.572 1.5-.263 1.546-.572 1.546z\'/><path d=\'m9.598 6.495h3.263v-1.067h-.882v-3.835h-.974c-.371.232-.727.371-1.283.479v.82h.927v2.536h-1.051z\'/><path d=\'m2.825 12.588c1.082 0 1.824-.89 1.824-2.567 0-1.67-.742-2.521-1.824-2.521-1.083 0-1.825.843-1.825 2.521 0 1.677.742 2.567 1.825 2.567zm0-1.021c-.31 0-.572-.247-.572-1.546s.262-1.5.572-1.5c.309 0 .572.201.572 1.5s-.263 1.546-.572 1.546z\'/><path d=\'m5.423 12.495h3.263v-1.067h-.882v-3.835h-.974c-.371.232-.727.371-1.284.479v.82h.928v2.536h-1.051z\'/><path d=\'m11.175 12.588c1.083 0 1.825-.89 1.825-2.567 0-1.67-.742-2.521-1.825-2.521-1.082 0-1.824.843-1.824 2.521 0 1.677.742 2.567 1.824 2.567zm0-1.021c-.309 0-.572-.247-.572-1.546s.263-1.5.572-1.5c.31 0 .572.201.572 1.5s-.262 1.546-.572 1.546z\'/></g></svg>'
  356. 	};
  357. 	const SVG_Text_Editing_UI_Icons = {
  358. 		'toggle_theme':		'<svg viewBox=\'0 0 16 16\' clip-rule=\'evenodd\' fill-rule=\'evenodd\' xmlns=\'http://www.w3.org/2000/svg\'><path d=\'m8 0c4.415 0 8 3.585 8 8s-3.585 8-8 8-8-3.585-8-8 3.585-8 8-8zm0 2c3.311 0 6 2.689 6 6s-2.689 6-6 6z\' fill=\'%23333\'/></svg>',
  359. 		'show_markdown':	'<svg viewBox=\'0 0 100 60\' xmlns=\'http://www.w3.org/2000/svg\' width=\'100\'><g fill=\'%23333\'><path d=\'M42.215 60l.17-46.24h-.255L30.06 60h-7.99L10.255 13.76H10L10.169 60H.905V-.18H14.59l11.56 44.03h.34L37.794-.18H52.16V60h-9.945zM99.589 29.996c0 9.519-1.997 16.901-5.992 22.142C89.602 57.38 83.722 60 75.959 60H60.914V-.18h15.13c7.706 0 13.558 2.65 17.553 7.948 3.995 5.299 5.992 12.708 5.992 22.228zm-10.2 0c0-3.57-.326-6.686-.978-9.35-.651-2.663-1.572-4.873-2.762-6.63-1.19-1.756-2.607-3.073-4.25-3.953-1.645-.878-3.43-1.317-5.355-1.317h-4.845v42.33h4.845c1.926 0 3.711-.438 5.355-1.317 1.643-.878 3.06-2.195 4.25-3.953 1.189-1.756 2.11-3.952 2.762-6.587.651-2.637.978-5.709.978-9.223z\'/></g></svg>',
  360. 		'show_source':		'<svg viewBox=\'0 0 22 14\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><path fill=\'none\' d=\'M0 0h21.996v14H0z\'/><clipPath id=\'a\'><path d=\'M0 0h21.996v14H0z\'/></clipPath><g clip-path=\'url(%23a)\' fill=\'%23333\'><path d=\'M0 7.393v-.786l6.062-3.5.75 1.3L2.32 7l4.492 2.593-.75 1.3L0 7.393zM21.996 6.607v.786l-6.062 3.5-.75-1.3L19.676 7l-4.492-2.593.75-1.3 6.062 3.5zM15.15 1.313l-1.3-.75-7 12.124 1.3.75 7-12.124z\'/></g></svg>',
  361. 		'show_preview':		'<svg viewBox=\'0 0 16 16\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><path d=\'M10 2.5V1H0v1.5h4V15h2V2.5h4zM9 6.5V8h2v4.053c0 2.211 1.547 3.442 3 3.442.989 0 1.556-.258 2-.495v-1.5c-.565.257-.882.376-1.507.376-.847 0-1.493-.474-1.493-1.876V8h2.5V6.5H13v-3h-1.98v3H9z\' fill=\'%23333\' fill-rule=\'nonzero\'/></svg>',
  362. 		'show_html':		'<svg viewBox=\'0 0 22 16\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><path fill=\'none\' d=\'M0 0h21.022v16H0z\'/><clipPath id=\'a\'><path d=\'M0 0h21.022v16H0z\'/></clipPath><g clip-path=\'url(%23a)\' fill=\'%23333\'><path d=\'M7.732.222L9.5 1.99 3.49 8l6.01 6.01-1.768 1.768L-.046 8 7.732.222zM13.268 15.778L11.5 14.01 17.51 8 11.5 1.99 13.268.222 21.046 8l-7.778 7.778z\'/></g></svg>',
  363. 		'toggle_split':		'<svg viewBox=\'0 0 16 16\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><path d=\'M0 0v16h16V0H0zm14 14H9V2h5v12zm-7 0H2V2h5v12z\' fill=\'%23333\' fill-rule=\'nonzero\'/></svg>',
  364. 		'save_btn':			'<svg viewBox=\'0 0 16 16\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><g fill=\'currentColor\'><path d=\'M16 0v10.02L14 10V2H2v8l-2 .02V0h16z\' fill-rule=\'nonzero\'/><path d=\'M7 5h2v9H7z\'/><path d=\'M3.757 11.757l1.415-1.414L8 13.172l2.828-2.829 1.415 1.414L8 16l-4.243-4.243z\'/></g></svg>',
  365. 		'save_btn_edited':	'<svg viewBox=\'0 0 16 16\' xmlns=\'http://www.w3.org/2000/svg\' fill-rule=\'evenodd\' clip-rule=\'evenodd\'><g fill=\'%23DD2222\'><path d=\'M16 0v10.02L14 10V2H2v8l-2 .02V0h16z\' fill-rule=\'nonzero\'/><path d=\'M7 5h2v9H7z\'/><path d=\'M3.757 11.757l1.415-1.414L8 13.172l2.828-2.829 1.415 1.414L8 16l-4.243-4.243z\'/></g></svg>'
  366. 	};
  367. // ===> GET SVG UI ICON by name
  368. 	function get_SVG_UI_File_Icon(icon_name) {																								// ===> GET SVG UI FILE Icon by name
  369. 		switch(icon_name) {
  370. 			case 'favicon': return '<link href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIAAAACAAgMAAAC+UIlYAAAACVBMVEUmRcmZzP8zmf8pVcWPAAAAAXRSTlMAQObYZgAAAFBJREFUeF7tyqERwDAMBEE3mX5UiqDmqwwziTPHjG7xrmzrLFtRaApDIRiKQlMYCsFQFJrCUAiGotAU5hTA1WB4fhkMBsOJwWAwgHvB8CHpBcTbpxy4RZNvAAAAAElFTkSuQmCC" rel="icon" sizes="16x16" />';
  371. 			case 'file_icon_dir_default': return 'url("data:image/png;base64,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 ")';
  372. 			case 'file_icon_file_default': return 'url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAAABnRSTlMAAAAAAABupgeRAAABHUlEQVR42o2RMW7DIBiF3498iHRJD5JKHurL+CRVBp+i2T16tTynF2gO0KSb5ZrBBl4HHDBuK/WXACH4eO9/CAAAbdvijzLGNE1TVZXfZuHg6XCAQESAZXbOKaXO57eiKG6ft9PrKQIkCQqFoIiQFBGlFIB5nvM8t9aOX2Nd18oDzjnPgCDpn/BH4zh2XZdlWVmWiUK4IgCBoFMUz9eP6zRN75cLgEQhcmTQIbl72O0f9865qLAAsURAAgKBJKEtgLXWvyjLuFsThCSstb8rBCaAQhDYWgIZ7myM+TUBjDHrHlZcbMYYk34cN0YSLcgS+wL0fe9TXDMbY33fR2AYBvyQ8L0Gk8MwREBrTfKe4TpTzwhArXWi8HI84h/1DfwI5mhxJamFAAAAAElFTkSuQmCC ")';
  373. 			default: return 'url("data:image/svg+xml;utf8,'+ SVG_UI_File_Icons[icon_name] +'")';
  374. 		}
  375. 	}
  376. 	function CSS_UI_Icon_Rules() {	// programatically add File icon CSS rules																// ===> CSS UI ICON RULES
  377. 		let rules = '', kind, class_name;
  378. 		for ( let icon in SVG_UI_File_Icons ) {
  379. 			kind = icon.slice(icon.lastIndexOf('_') + 1);
  380. 			class_name = kind;
  381. 			if ( class_name !== ('file') ) {		// exceptions:
  382. 				if ( kind === 'dirinvisible' )		{ class_name = 'dir.invisible'; }
  383. 				if ( kind === 'ignoredimage' )		{ class_name = 'ignored_image'; }
  384. 				if ( kind === 'open' )				{ class_name = 'has_subdirectory'; kind = 'dir_open'; }
  385. 				if ( /alias|symlink/.test(kind) )	{ class_name = 'link'; }
  386. 				if ( /bin|other/.test(kind) )		{ kind = 'system'; }
  387. 				// add rules for dir_list items, content_header, stats details:
  388. 				rules += `body:not(.use_custom_icons_false) .${ class_name } .has_icon_before_before, #content_pane[data-content^="has_${ class_name }"] #content_title span::before,body:not(.use_custom_icons_false) .${ class_name }.has_icon_before::before, .${ class_name } .has_icon_before::before { background-image: url("data:image/svg+xml;utf8,${ SVG_UI_File_Icons['file_icon_'+kind] }"); }`;	// add custom file icons
  389. 			}
  390. 		}
  391. 		return rules;
  392. 	}
  393. 	// END SVG UI ICONS
  394. 	//==============================// UI HTML
  395. 	// SIDEBAR ELEMENTS
  396. 	const Directory_Header_Menu_Elements = `
  397. 		<li id="go_to_item" class="no_checkmark border_bottom" title="Go to item..."><span class="menu_item">Go to item&hellip; (&#8984;&#8679;J)</span><input id="go_to_item_input" class="display_none resize_none whitespace_pre" rows="1" placeholder="Item row number" spellcheck="false" /></li>
  398. 		<li id="menu_sort_by" class="has_submenu border_bottom error_display_none"><span class="menu_item">Sort by&hellip;</span>${SVG_UI_Icons.arrow}
  399. 			<ul id="sort_menu" class="submenu box_shadow_menu background_grey_80 border_all">     <li id="menu_sort_by_name" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_name"><span class="menu_item">Name</span></li>     <li id="menu_sort_by_duration" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_duration"><span class="menu_item">Duration</span></li>     <li id="menu_sort_by_size" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_size"><span class="menu_item">Size</span></li>     <li id="menu_sort_by_date" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_date"><span class="menu_item">Date</span></li>     <li id="menu_sort_by_kind" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_kind"><span class="menu_item">Kind</span></li>     <li id="menu_sort_by_ext" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_ext"><span class="menu_item">Extension</span></li>     <li id="menu_sort_by_default" class="is_submenu_item toggle_UI_pref sorting" data-ui_pref="sort_by_default"><span class="menu_item">Default</span></li>     </ul></li>
  400. 		<li id="UI_settings" class="has_submenu"><span class="menu_item">UI Preferences</span>${SVG_UI_Icons.arrow}
  401. 			<ul id="UI_settings_submenu" class="submenu box_shadow_menu background_grey_80 border_all">
  402. 				<li id="menu_theme_container" class="is_submenu_item" title="Set the main UI theme (light or dark)."><span id="menu_theme" class="toggle_UI_pref menu_item checkmark ignore_warning" data-ui_pref="theme"><span> Theme</span></span></li>
  403. 				<li id="alternate_background" class="is_submenu_item toggle_UI_pref ignore_warning" data-ui_pref="alternate_background" title="Alternate backgrounds of directory items."><span class="menu_item checkmark">Alternate Backgrounds</span></li>
  404. 				<li id="show_numbers" class="is_submenu_item toggle_UI_pref ignore_warning border_bottom error_display_none" data-ui_pref="show_numbers" title="Number directory list items."><span class="menu_item checkmark">Show Numbers</span></li>
  405. 				<li id="use_custom_icons" class="is_submenu_item toggle_UI_pref ignore_warning" data-ui_pref="use_custom_icons" title="Use custom or browser/server default file and dir icons"><span class="menu_item checkmark">Use Custom Icons</span></li>
  406. 				<li id="show_image_thumbnails" class="is_submenu_item toggle_UI_pref ignore_warning" data-ui_pref="show_image_thumbnails" title="Show image thumbnails in directory list items."><span class="menu_item checkmark">Show Image Thumbnails</span></li>
  407. 				<li id="show_large_image_thumbnails" class="is_submenu_item toggle_UI_pref ignore_warning" data-ui_pref="show_large_image_thumbnails" title="Use large image thumbnails."><span class="menu_item checkmark">Use Large Image Thumbnails</span></li>
  408. 				<li id="show_image_thumbnails_always" class="is_submenu_item toggle_UI_pref ignore_warning border_bottom" data-ui_pref="show_image_thumbnails_always" title="Always show image thumbnails no matter how many images are in directory."><span class="menu_item checkmark">Always Show Image Thumbnails</span></li>
  409. 				<li id="ui_font" class="is_submenu_item ignore_warning no_checkmark" data-ui_pref="ui_font" title="Enter the name of an installed font."><span class="menu_item">Set UI Font&hellip;</span><input id="ui_font_input" class="display_none resize_none whitespace_pre" rows="1" placeholder="CSS Font Family" spellcheck="false" /></li>
  410. 				<li id="ui_scale" class="is_submenu_item ignore_warning display_flex flex_column no_checkmark" data-ui_pref="ui_scale" title="Scale the UI. Double-click to reset."><span class="menu_item">Scale UI&hellip;</span><span id="ui_scale_input_container" class="flex_justify_center_row padding_4_6"><input id="ui_scale_input" class="width_100 whitespace_pre display_block resize_none" type="range" min="75" max="125" step="1" placeholder="Scale UI"></span></li>
  411. 		</ul></li>
  412. 		<li id="file_handling" class="has_submenu error_display_none"><span class="menu_item">File Handling Preferences</span>${SVG_UI_Icons.arrow}
  413. 			<ul id="file_handling_submenu" class="submenu box_shadow_menu background_grey_80 border_all">
  414. 				<li id="show_invisible_items" class="is_submenu_item toggle_UI_pref" data-ui_pref="show_invisibles" title="Show/hide invisible items"><span class="menu_item checkmark">Show Invisible Items  (&#8984;&#8679;I)</span></li>
  415. 				<li id="show_ignored_items" class="is_submenu_item toggle_UI_pref" data-ui_pref="show_ignored_items" title="Show/hide ignored items (from the list of ignored file types in the user settings)."><span class="menu_item checkmark">Show Ignored Items</span></li>
  416. 				<li id="ignore_ignored_items" class="is_submenu_item toggle_UI_pref border_bottom" data-ui_pref="ignore_ignored_items" title="If checked, the browser will not attempt to load ignored items (from the list of ignored file types in the user settings). It is recommended to leave this checked."><span class="menu_item checkmark">Ignore Ignored Items</span></li>
  417. 				<li id="autoload_index_files" class="is_submenu_item toggle_UI_pref" data-ui_pref="autoload_index_files" title="Automatically load html index file."><span id="autoload_index_files_menu" class="menu_item checkmark">Autoload Index Files</span></li>
  418. 		</ul></li>
  419. 		<li id="media_settings" class="has_submenu error_display_none"><span class="menu_item">Media Preferences</span>${SVG_UI_Icons.arrow}
  420. 			<ul id="UI_settings_submenu" class="submenu box_shadow_menu background_grey_80 border_all">
  421. 				<li id="media_autoload" class="is_submenu_item toggle_UI_pref" data-ui_pref="media_autoload" title="Automatically select and load the first media item in a directory and cover art (if any)."><span id="media_autoload_menu" class="menu_item checkmark">Autoload Media</span></li>
  422. 				<li id="media_autoplay" class="is_submenu_item toggle_UI_pref" data-ui_pref="media_autoplay" title="Automatically play the next media item."><span id="media_autoload_menu" class="menu_item checkmark">Autoplay Media</span></li>
  423. 				<li id="media_play_all" class="is_submenu_item toggle_UI_pref border_bottom" data-ui_pref="media_play_all" title="If checked, autoplay all media types (i.e., audio and video), else just autoplay the currently selected/playing media type."><span class="menu_item checkmark">Play All Media Files</span></li>
  424. 				<li id="loop_media_files" class="is_submenu_item" title="If checked, loop media playback."><span id="loop_media_menu" class="menu_item">Loop Media Playback</span></li>
  425. 				<li id="shuffle_media_files" class="is_submenu_item border_bottom" title="If checked, shuffle media playback."><span id="shuffle_media_menu" class="menu_item">Shuffle Media Playback</span></li>
  426. 				<li id="refresh_media_durations" class="is_submenu_item border_bottom" title=""><span id="refresh_media_durations_menu" class="menu_item">Refresh Media Durations</span></li>
  427. 		</ul></li>
  428. 		<li id="text_editing" class="has_submenu error_display_none"><span class="menu_item">Text Editing Preferences</span>${SVG_UI_Icons.arrow}     <ul id="text_editing_menu" class="submenu box_shadow_menu background_grey_80 border_all">     		<li id="toggle_text_editing" class="error_display_none" title="Enable/disable editing of text files. Does not effect main text editor."><span id="text_editing_enable" class="toggle_UI_pref menu_item checkmark" data-ui_pref="text_editing_enable"><span id="disable">Text File Editing </span></span></li>     <li id="texteditor_menu_item" class="is_submenu_item border_bottom" title="Toggle the main text editor."><span id="texteditor" class="menu_item">Toggle Text Editor </span></li>     
  429. 		<li id="texteditor_split_view" class="is_submenu_item toggle_UI_pref border_bottom" data-ui_pref="texteditor_split_view" title="Toggle display of default text view and both source and rendered text."><span class="menu_item checkmark">Split View</span></li>
  430. 		<li id="toggle_texteditor_raw_menu" class="is_submenu_item toggle_UI_pref" data-ui_pref="texteditor_view_raw"><span id="toggle_texteditor_raw" class="menu_item">View Source Text</span></li>
  431. 		<li id="toggle_texteditor_preview_menu" class="is_submenu_item toggle_UI_pref" data-ui_pref="texteditor_view_preview"><span id="toggle_texteditor_preview" class="menu_item">View Styled Text</span></li>
  432. 		<li id="toggle_texteditor_html_menu" class="is_submenu_item toggle_UI_pref" data-ui_pref="texteditor_view_html"><span id="toggle_texteditor_html" class="menu_item">View Rendered HTML</span></li></ul>
  433.  
  434.      	<li id="default_settings" class="border_bottom"><span class="menu_item" href="#" title="Delete custom UI preferences stored in the URL query string and reload page.">Default Preferences</span></li>
  435. 		<li id="playlist_options" class="has_submenu border_bottom error_display_none"><span class="menu_item">Playlists</span>${SVG_UI_Icons.arrow}     <ul id="playlist_menu" class="submenu box_shadow_menu background_grey_80 border_all">		<li id="open_playlist_container" class="is_submenu_item"><label id="open_playlist_label" class="menu_item" for="open_playlist" title="Open local .m3u playlist/filelist file.">Open Playlist/Filelist File&hellip;</label><input type="file" id="open_playlist" name="open_playlist" accept=".m3u,.m3u8"></li>    <li id="close_playlist_container" class="is_submenu_item display_none"><span id="close_playlist" class="menu_item" href="#">Close Playlist/Filelist</span></li>     <li class="is_submenu_item"><span id="make_playlist" class="menu_item border_top error_display_none" href="#" title="Make an .m3u playlist/filelist of the items in the current directory (if any).">Make Playlist/Filelist&hellip;</span></li>     </ul></li>
  436. 		<li id="open_font_file" class="border_bottom error_display_none"><label id="open_font_label" class="menu_item" for="open_font" title="Open font file (.oft, .ttf, .woff) to view glyph repertoire and font info; save individual glyphs as .svg.">Open Font File&hellip;</label><input type="file" id="open_font" name="open_font" accept=".otf,.ttf,.woff"></li>
  437. 		<li id="about" class="" title="Go to script home page."><a id="about_link" class="menu_item flex_grow_1 ignore_warning" href="https://openuserjs.org/scripts/gaspar_schot/Supercharged_Local_Directory_File_Browser" target="_blank"><span class="icon_container"></span>Script Home &#8599;</a></li>
  438. 		<li id="show_help" class="" title="Show help."><span class="menu_item flex_grow_1"><span class="icon_container"></span>Help</span></li>
  439. 		<li id="donate" class="" title="Buy me a coffee!"><a id="donate_link" class="menu_item flex_grow_1 ignore_warning" href="https://www.buymeacoffee.com/fiLtliTFxQ" target="_blank" rel="noopener"><span class="icon_container"></span>Buy me a Coffee <svg xmlns="http://www.w3.org/2000/svg" width="14px" viewBox="0 0 64 64" enable-background="new 0 0 64 64"><path d="m32 2c-16.568 0-30 13.432-30 30 0 16.568 13.432 30 30 30s30-13.432 30-30c0-16.568-13.432-30-30-30m0 48c-1.371-1.814-20.53-12.883-16.602-25.218 3.53-11.073 15.094-6.597 16.602-.594 1.094-5.635 12.949-10.694 16.604.584 3.925 12.136-15.237 23.785-16.604 25.228" fill="#757575"/></svg></a></li>
  440. 		<li id="contact" class="" title="Send me an email."><a id="contact_link" class="menu_item flex_grow_1 ignore_warning" href="mailto:mshroud@protonmail.com"><span class="icon_container"></span>Contact</a></li>
  441. 	`;
  442. 	const Directory_Header_Elements = function(body_id,parent_link) {
  443. 		let checked = '', parent_links = createParentLinkItems(), dir_header_title_element = '', dir_header_menus = '', texteditor_element = '';
  444. 		if ( getCurrentUIPref('show_invisibles') === 'true' ) { checked = 'checked="true"'; }
  445. 		switch(body_id) {
  446. 			case 'top_body':
  447. 				dir_header_title_element = `<div id="dir_header_title" class="display_flex flex_row border_bottom background_grey_75 normal"><div class="dir_header_title_div center padding_4_6"></div></div>`;
  448. 				dir_header_menus = `<div id="dir_menus" class="display_flex flex_row background_grey_75 border_bottom pointer">
  449. 					<div id="dir_menu_parent" class="menu_container flex_justify_center width_24px padding_0">     <nav id="parent_dir_nav" class="flex_justify_center invert"><a href="${ parent_links[1] }" title="Parent Directory (&#8984;&uarr;)" class="flex_justify_center"><div class="display_flex">${ SVG_UI_Icons.chevron }${ SVG_UI_Icons.multiply }</div></a></nav>     </div>
  450. 					<div id="dir_menu_parents" class="menu_container padding_0 flex_grow_1">     <nav id="parents_dir_nav" class="display_flex border_right line_height_1_4 border_left">     <div id="current_dir_path" class="bold flex_justify_center hyphens_none pointer z_index_9998" title="Parent Directories"><span class="has_icon_before">${ current_dir_path }</span></div>     </nav>     <ul id="parents_links" class="menu background_grey_85 position_absolute position_LR_0 border_top border_bottom margin_0 padding_0 display_none box_shadow_menu z_index_9998">${ parent_links[0] }</ul>     </div>
  451. 					<div id="dir_menu_main_container" class="menu_container width_24px flex_justify_center margin_0 padding_0">     <nav id="dir_menu_main_container_nav" class="invert pointer width_14px_contents" title="Show main menu (&#8984;E); navigate by arrow keys or typed string."><div class="display_flex">${ SVG_UI_Icons.menu }</div></nav>     <ul id="dir_menu_main" class="menu position_absolute background_grey_80 border_top border_bottom margin_0 padding_0 display_none box_shadow_menu position_LR_0 z_index_9998">     ${ Directory_Header_Menu_Elements }     </ul>     </div>
  452. 				</div>`;
  453. 				texteditor_element = `<ul id="show_texteditor" class="bold border_bottom display_none"><li class="padding_4_6 width_100 background_grey_80" title="Toggle Text Editor (&#8984;&#8679;E)"><span>Text Editor</span></li></ul>`;
  454. 				break;
  455. 			case 'iframe':
  456. 				dir_header_menus = `<ul id="change_dirs" class="flex_justify_center_row flex_justify_contents border_bottom background_grey_75">     <li id="parent" class="flex_grow_1 no_highlight"><a href="${ parent_link }" id="iframe_parent_link" class="display_inline_flex" title="Go to parent directory"><span class="width_14px_contents invert">${ SVG_UI_Icons.chevron }</span>Parent Directory</a></li>     <li id="open_in_sidebar" class="align_right flex_grow_1 no_highlight"><a href="#" title="Open this directory in sidebar">Open in Sidebar<span class="width_14px_contents invert transform_rotate_270_contents">${ SVG_UI_Icons.chevron }</span></a></li>     </ul>`;
  457. 				break;
  458. 		}
  459. 		return `<header id="dir_header" class="display_flex flex_column text_color_default font_size_small z_index_3">
  460. 					${ dir_header_title_element }
  461. 					<div id="dir_header_utilities" class="display_flex flex_column">
  462. 						${ dir_header_menus }
  463. 						<ul id="dir_header_utilities_row_1" class="display_flex flex_row position_relative background_grey_80 border_bottom">
  464. 							<li id="directory_buttons_left" class="display_flex no_highlight">     <button id="show_details" class="toggle_UI_pref pointer" data-ui_pref="show_details" tabindex="-1" title="Toggle display of directory item detail information (&#8984;D)"><span id="show"> details</span></button></li>     <li class="display_flex no_highlight"><label id="show_invisibles_container" for="inv_checkbox" class="margin_0 padding_0 flex_justify_center_row"><input class="toggle_UI_pref margin_0" type="checkbox" id="show_invisibles" data-ui_pref="show_invisibles" title="Toggle display of invisible items (&#8984&#8679;;I)" name="inv_checkbox" tabindex="-1"${ checked } /><span>&nbsp;Show Invisibles</span></label>     </li>
  465. 								<li id="show_grid_btn" class="has_flyout_menu width_24px display_none position_relative pointer margin_0 padding_0 z_index_9997 no_highlight" tabindex="-1" title="Show Grid (&#8984;G)"><div class="display_flex width_14px_contents background_grey_80">${ SVG_UI_Icons.grid}</div>     <ul class="menu has_popout_menu display_none position_absolute margin_0 padding_0 box_shadow_menu border_all background_grey_80"><div class="display_flex width_24px width_14px_contents">${ SVG_UI_Icons.grid}</div>     <li id="show_image_grid" class="item_1 border_right border_bottom background_grey_80">Show Image Grid</li>     <li id="show_font_grid" class="item_2 border_right background_grey_80">Show Font Grid</li>     </ul>     </li>
  466. 						</ul>
  467. 						<div id="sorting" class="background_grey_80">
  468. 							<ul id="sorting_row_1" class="whitespace_pre pointer container display_flex flex_justify_contents border_bottom">     <li id="sort_by_name" class="whitespace_pre pointer toggle_UI_pref name sorting align_left no_highlight" data-ui_pref="sort_by_name" title="Sort by name"><span><input id="play_toggle" class="whitespace_pre pointer display_none position_relative" type="checkbox" tabindex="-1" checked="true" />Name</span></li>     <li id="sort_by_default" class="whitespace_pre pointer toggle_UI_pref sorting align_right no_highlight" data-ui_pref="sort_by_default" title="Default sort"><span>Default</span></li>     <li id="sort_by_duration" class="whitespace_pre pointer toggle_UI_pref sorting align_right display_none no_highlight" data-ui_pref="sort_by_duration" title="Sort by media duration"><span>Duration</span></li>     </ul>
  469. 							<ul id="sorting_row_2" class="whitespace_pre pointer iframe_item border_bottom display_none">     <li id="sort_by_ext" class="whitespace_pre pointer toggle_UI_pref details sorting align_left no_highlight" data-ui_pref="sort_by_ext" title="Sort by extension"><span>Ext</span></li>     <li id="sort_by_duration" class="whitespace_pre pointer toggle_UI_pref sorting align_right display_none no_highlight" data-ui_pref="sort_by_duration" title="Sort by media duration"><span>Duration</span></li>     <li id="sort_by_size" class="whitespace_pre pointer toggle_UI_pref details sorting center no_highlight" data-ui_pref="sort_by_size" title="Sort by size"><span>Size</span></li>     <li id="sort_by_date" class="whitespace_pre pointer toggle_UI_pref details sorting center no_highlight" data-ui_pref="sort_by_date" title="Sort by date"><span>Date</span></li>     <li id="sort_by_kind" class="whitespace_pre pointer toggle_UI_pref details sorting align_right no_highlight" data-ui_pref="sort_by_kind" title="Sort by kind"><span>Kind</span></li>     </ul>
  470. 						</div>
  471. 						${ texteditor_element }
  472. 					</div>
  473. 				</header>`;
  474. 	};	
  475. 	const Directory_Elements = function(body_id,parent_link) {									// Assemble directory elements for both top and iframe directories
  476. 		let dir_footer_utilities = '', directory_utilities = '';
  477. 		if ( body_id === 'top_body' ) {															// various elements not needed in iframe directories
  478. 			dir_footer_utilities = `<div id="dir_footer_utilities" class="width_24px flex_justify_center position_relative invert pointer z_index_1"><div class="width_18px_contents display_flex transform_rotate_180">${ SVG_UI_Icons.toggle }</div>     <ul class="has_popout_menu invert margin_0 padding_0 display_none border_all position_absolute background_grey_80">     <li id="open_in_content_pane" class="align_right border_bottom padding_4_6">Open Sidebar in Content Pane</li>     <li id="show_directory_source" class="align_right padding_4_6" data-kind="show_directory_source">View Sidebar Directory Source</li>     </ul>     </div>`;
  479. 			directory_utilities = `<div id="dir_utilities"><div id="handle" class="position_absolute z_index_1"></div>     <div id="show_sidebar" class="toggle_UI_pref width_24px width_18px_contents position_absolute flex_justify_center invert pointer z_index_9997" data-ui_pref="show_sidebar" title="Toggle Sidebar (&#8984;\\)">${ SVG_UI_Icons.toggle }</div></div>     </div>`;
  480. 		}
  481. 		const dir_nav = `<nav id="dir_nav" class="display_flex flex_column background_grey_85 font_size_small"><div id="dir_nav_inner" class="position_relative">
  482. 				<div id="directory_list_outer" class="position_relative"><ol id="directory_list" class="display_flex flex_column margin_0 padding_0 text_color_default border_bottom" tabindex="0">insert_prepped_index</ol></div>
  483. 			</div></nav>`;
  484. 		const dir_footer = `<footer id="dir_footer" class="display_flex flex_row position_relative background_grey_85 border_top text_color_default error_display_none font_size_small">insert_stats${ dir_footer_utilities }</footer>`;
  485. 		return `<div id="dir_wrapper" class="${body_id} display_flex flex_column position_relative border_right padding_0 z_index_1" style="width:${ Number(getCurrentUIPref("width")) }%">
  486. 					${ Directory_Header_Elements(body_id,parent_link) }     ${ dir_nav }     ${ dir_footer }     ${ directory_utilities }
  487. 				</div>`;
  488. 	};
  489. 	//==============================//
  490. 	// CONTENT PANE ELEMENTS
  491. 	const Text_Editing_UI_Elements = `
  492. 		<div id="toolbar" class="border_bottom background_grey_80 position_relative text_color_default display_flex width_100">
  493. 				<ul id="toolbar_buttons" class="display_flex flex_row flex_grow_1 margin_0 padding_0">     <li id="toggle_texteditor_view_raw" class="toggle_UI_pref toolbar_icon display_flex no_highlight" data-ui_pref="texteditor_view_raw" title="Show source"><div class="display_flex width_16px_contents invert">${ SVG_Text_Editing_UI_Icons.show_markdown }</div></li>     <li id="toggle_texteditor_view_preview" class="toggle_UI_pref toolbar_icon display_flex no_highlight" data-ui_pref="texteditor_view_preview" title="Show rendered markdown"><div class="display_flex width_14px_contents invert">${ SVG_Text_Editing_UI_Icons.show_preview }</div></li>     <li id="toggle_texteditor_view_html" class="toggle_UI_pref toolbar_icon display_flex no_highlight" data-ui_pref="texteditor_view_html" title="Show formatted HTML"><div class="display_flex width_18px_contents invert">${ SVG_Text_Editing_UI_Icons.show_html }</div></li>     <li id="toggle_texteditor_split_view" class="toggle_UI_pref toolbar_icon display_flex no_highlight" data-ui_pref="texteditor_split_view" title="Toggle Split View"><div class="display_flex width_14px_contents invert">${ SVG_Text_Editing_UI_Icons.toggle_split }</div></li>     <li id="texteditor_sync_scroll" class="toggle_UI_pref checkbox_container flex_justify_center_row no_highlight" data-ui_pref="texteditor_sync_scroll"><input id="texteditor_sync_scroll_input" class="flex_justify_center_row position_relative" data-ui_pref="texteditor_sync_scroll" name="texteditor_sync_scroll" type="checkbox"><label id="texteditor_sync_scroll_label" for="texteditor_sync_scroll" class="flex_justify_center_row whitespace_pre" data-ui_pref="texteditor_sync_scroll">Sync Scroll</label></li>     <li class="display_flex flex_grow_1 no_highlight">&nbsp;</li>     <li id="clear_text" class="toolbar_icon no_highlight" title="Clear Text">Clear</li>     <li id="save_btn" class="has_flyout_menu width_24px display_flex position_relative pointer margin_0 padding_0 z_index_9997" title=""><div class="display_flex width_14px_contents">${ SVG_Text_Editing_UI_Icons.save_btn}</div><ul class="menu has_popout_menu display_none position_absolute margin_0 padding_0 box_shadow_menu border_top border_bottom border_left background_grey_80">     <li id="save_text" class="item_1 border_right border_bottom background_grey_85" title="Save source text"><span id="save_text_link" target="_blank">Save Source</span></li>     <li id="save_btn_icon" class="item_1 no_highlight">${ SVG_Text_Editing_UI_Icons.save_btn}</li>     <li id="save_HTML" class="item_2 border_right background_grey_85" title="Save rendered html"><span id="save_HTML_link" target="_blank">Save HTML</span></li>     </ul></li>     </ul>
  494. 		</div>
  495. 		<div id="text_container" class="display_flex flex_grow_1 overflow_hidden">     <textarea id="texteditor_txt_pane" class="texteditor_pane margin_0 border_0 height_100 line_height_1_2 text_color_default resize_none display_none z_index_1" tabindex="0"></textarea>     <div id="texteditor_preview_pane" class="texteditor_pane margin_0 border_0 line_height_1_2 text_color_default height_100 display_none markdown_body z_index_1" tabindex="0"></div>     <textarea id="texteditor_html_pane" class="texteditor_pane margin_0 height_100 line_height_1_2 border_0 text_color_default resize_none display_none z_index_1" tabindex="0" readonly></textarea>
  496. 		<div id="text_editing_handle" class="position_absolute z_index_3"></div></div>
  497. 	`;
  498. 	const Content_Text_Elements = `<div id="content_texteditor" class="background_grey_85 margin_0 padding_0 width_100 height_100 overflow_hidden position_absolute z_index_1 flex_column flex_grow_1 display_none">${ Text_Editing_UI_Elements }</div>`;
  499. 	const Content_Audio_Elements = `
  500. 		<div id="content_audio_title" class="flex_justify_center_row background_grey_80 bold center" title="Click to toggle .m3u playlist entry."><span class="pointer line_height_1_4"></span></div>
  501. 		<div id="content_audio" class="display_flex flex_row border_bottom background_grey_80">
  502. 			<div id="audio_container" class="display_flex flex_row border_all">
  503. 				<nav id="cuesheet_track_list_container_audio" class="cuesheet_track_list_container border_right" title="Cue sheet track list">			<div class="box_shadow_menu display_none font_size_small position_absolute position_LR_0 z_index_1"><ul id="cuesheet_track_list_audio" class="cuesheet_track_list background_grey_85 border_bottom margin_0 padding_0">    </ul></div>     </nav>
  504. 				<div id="prev_track" class="prev_next_btn audio_controls flex_justify_center pointer" title="Previous track"><div class="display_flex width_24px_contents transform_rotate_180">${ SVG_UI_Icons.prev_next_track }</div></div>
  505. 				<div id="next_track" class="prev_next_btn audio_controls flex_justify_center border_right pointer" title="Next track"><div class="display_flex width_24px_contents">${ SVG_UI_Icons.prev_next_track }</div></div>
  506. 				<audio id="audio" preload="auto" tabindex="0" controls>Sorry, your browser does not support HTML5 audio.</audio>
  507. 				<div id="close_audio" class="audio_controls border_left flex_justify_center position_relative pointer" title="Close audio"><div class="display_flex width_14px_contents">${ SVG_UI_Icons.multiply }</div></div>
  508. 				<div id="audio_options" class="display_flex flex_column">
  509. 					<label id="loop_label" for="loop"><input type="checkbox" id="loop" name="loop" tabindex="0" />Loop</label>
  510. 					<label id="shuffle_label" class="whitespace_pre" for="shuffle"><input type="checkbox" id="shuffle" name="shuffle" tabindex="0" />Shuffle</label>
  511. 				</div>
  512. 			</div>
  513. 		</div>
  514. 		<div id="content_audio_playlist_item" class="playlist_entry_container border_bottom background_grey_85 center display_none"><textarea id="content_audio_playlist_item_textarea" class="text_color_default padding_4_6 border_0" rows="3" spellcheck="false"></textarea></div>`;
  515. 	const Content_Font_Viewer = '<div id="font_file_viewer" class="position_absolute position_0 display_none"><div id="font_file_glyph_viewer" class="invert margin_0 padding_0 position_absolute position_0 display_none z_index_2"></div><ol id="font_file_grid" class="font_grid position_relative padding_0 center display_grid overflow_x_hidden"></ol></div>';
  516. 	const font_toolbar = `<div id="font_toolbar" class="display_none margin_0 position_relative background_grey_80 border_bottom z_index_3">
  517. 		<ol id="font_specimen_variants" class="display_none flex_row flex_grow_1 border_bottom"><li id="font_variants" class="flex_justify_center no_highlight" title="Font Variants"><select id="font_variant_select" data-tab_order="10" label="Font Variants">
  518. 				<option value="">OpenType Feature Tags</option>
  519. 				<optgroup label="Caps">    <option value="normal" data-prop="font-variant-caps" data-value="normal">Normal </option>    <option value="smcp" title="smcp" data-prop="font-variant-caps" data-value="small-caps">Small Caps </option>    <option value="c2sc" title="c2sc" data-prop="font-variant-caps" data-value="all-small-caps">All Small Caps </option>    <option value="pcap" title="pcap" data-prop="font-variant-caps" data-value="petite-caps">Petite Caps </option>    <option value="c2pc" title="c2pc" data-prop="font-variant-caps" data-value="all-petit-caps">All Petite Caps </option>    <option value="unic" title="unic" data-prop="font-variant-caps" data-value="unicase">Unicase </option>    <option value="titl" title="titl" data-prop="font-variant-caps" data-value="titling-caps">Titling Caps </option>    <option value="case" title="case">Case Sensitive Forms </option>    <option value="ordn" title="ordn">Ordinals </option>    </optgroup>
  520. 				<optgroup label="Alternatives">    <option value="normal" data-prop="font-variant-alternates" data-value="normal">Normal </option>    <option value="aalt" title="aalt">Access All Alternates </option>    <option value="nalt" title="nalt" data-prop="font-variant-alternates" data-value="'nalt'">Annotation 1-99 </option>    <option value="cv01" title="cv01" data-prop="font-variant-alternates" data-value="\"cv01\"">Character Variant 1–99 </option>    <option value="calt" title="calt" data-prop="font-variant-alternates" data-value="cv01">Contextual Alts 1-99 </option>    <option value="hist" title="hist">Historical Forms </option>    <option value="ornm" title="ornm" data-prop="font-variant-alternates" data-value="ornm">Ornaments 1-99 </option>    <option value="salt" title="salt" data-prop="font-variant-alternates" data-value="salt">Stylistic Alternates 1-99 </option>    <option value="ss01" title="ss01" data-prop="font-variant-alternates" data-value="ss01">Stylistic Set 1–20 </option>    <option value="swsh" title="swsh" data-prop="font-variant-alternates" data-value="\"swsh\"">Swash 1-99 </option>    <option value="cswh" title="cswh">Contextual Swash </option>    </optgroup>
  521. 				<optgroup label="Ligatures">    <option value="normal" data-prop="font-variant-ligatures" data-value="normal">Normal </option>    <option value="liga" title="liga" data-prop="font-variant-ligatures" data-value="common-ligatures">Common Ligatures </option>    <option value="clig" title="clig" data-prop="font-variant-ligatures" data-value="contextual">Contextual Ligatures </option>    <option value="dlig" title="dlig" data-prop="font-variant-ligatures" data-value="discretionary-ligatures">Discretionary Ligatures </option>    <option value="hlig" title="hlig" data-prop="font-variant-ligatures" data-value="historical-ligatures">Historical Ligatures </option>    </optgroup>
  522. 				<optgroup label="Numbers">    <option value="normal"  data-prop="font-variant-numeric" data-value="normal">Normal </option>    <option value="dnom" title="dnom" data-prop="font-variant-numeric" data-value="ordinal">Ordinal </option>    <option value="zero" title="zero" data-prop="font-variant-numeric" data-value="slashed-zero">Slashed Zero </option>    <option value="lnum" title="lnum" data-prop="font-variant-numeric" data-value="lining-nums">Lining Figures </option>    <option value="onum" title="onum" data-prop="font-variant-numeric" data-value="oldstyle-nums">Oldstyle Figures </option>    <option value="pnum" title="pnum" data-prop="font-variant-numeric" data-value="proportional-nums">Proportional Figures </option>    <option value="tnum" title="tnum" data-prop="font-variant-numeric" data-value="tablular-nums">Tabular Figures </option>    <option value="frac" title="frac" data-prop="font-variant-numeric" data-value="diagonal-fractions">Fractions </option>    <option value="afrc" title="afrc" data-prop="font-variant-numeric" data-value="stacked-fractions">Alternative Fractions </option>    <option value="numr" title="numr">Numerator </option>    <option value="sinf" title="sinf">Scientific Inferiors </option>    <option value="mgrk" title="mgrk">Mathematical Greek </option>    </optgroup>
  523. 				<optgroup label="Position">    <option value="normal"  data-prop="font-variant-position" data-value="normal">Normal </option>    <option value="subs" title="subs" data-prop="font-variant-position" data-value="sub">Subscript </option>    <option value="sups" title="sups" data-prop="font-variant-position" data-value="super">Superscript </option>    </optgroup>
  524. 			</select></li>
  525. 			<li id="font_tag" class="flex_justify_center no_highlight" data-salt=""><span class="flex_justify_center position_relative"><textarea id="font_tag_textarea" data-tab_order="12" class="resize_none" rows="1" cols="5" spellcheck="false" maxlength="8" placeholder="otftag" title="Enter an OpenType Feature Tag (e.g.: &ldquo;smcp&rdquo;)"></textarea></span></li>
  526. 			<li class="spacer no_highlight width_100"></li>
  527. 			<li id="unicode_char_planes" class="flex_justify_center no_highlight" title="Unicode Code Ranges"><select id="unicode_char_ranges_select" data-tab_order="13">
  528. 				<option value="">Unicode Code Ranges</option>
  529. 				<optgroup label="Basic Multilingual Plane">     <option id="BMP_Range_01" value="BMP_Range_01" data-block_start="0000" data-block_end="0FFF">BMP-01: U+0000–U+0FFF</option>    <option id="BMP_Range_02" value="BMP_Range_02" data-block_start="1000" data-block_end="1FFF">BMP-02: U+1000–U+1FFF</option>    <option id="BMP_Range_03" value="BMP_Range_03" data-block_start="2000" data-block_end="2FFF">BMP-03: U+2000–U+2FFF</option>    <option id="BMP_Range_04" value="BMP_Range_04" data-block_start="3000" data-block_end="3FFF">BMP-04: U+3000–U+3FFF</option>    <option id="BMP_Range_05" value="BMP_Range_05" data-block_start="4000" data-block_end="4FFF">BMP-05: U+4000–U+4FFF</option>    <option id="BMP_Range_06" value="BMP_Range_06" data-block_start="5000" data-block_end="5FFF">BMP-06: U+5000–U+5FFF</option>    <option id="BMP_Range_07" value="BMP_Range_07" data-block_start="6000" data-block_end="6FFF">BMP-07: U+6000–U+6FFF</option>    <option id="BMP_Range_08" value="BMP_Range_08" data-block_start="7000" data-block_end="7FFF">BMP-08: U+7000–U+7FFF</option>    <option id="BMP_Range_09" value="BMP_Range_09" data-block_start="8000" data-block_end="8FFF">BMP-09: U+8000–U+8FFF</option>    <option id="BMP_Range_10" value="BMP_Range_10" data-block_start="9000" data-block_end="9FFF">BMP-10: U+9000–U+9FFF</option>    <option id="BMP_Range_11" value="BMP_Range_11" data-block_start="A000" data-block_end="AFFF">BMP-11: U+A000–U+AFFF</option>    <option id="BMP_Range_12" value="BMP_Range_12" data-block_start="B000" data-block_end="BFFF">BMP-12: U+B000–U+BFFF</option>    <option id="BMP_Range_13" value="BMP_Range_13" data-block_start="C000" data-block_end="CFFF">BMP-13: U+C000–U+CFFF</option>    <option id="BMP_Range_14" value="BMP_Range_14" data-block_start="D000" data-block_end="DFFF">BMP-14: U+D000–U+DFFF</option>    <option id="BMP_Range_15" value="BMP_Range_15" data-block_start="E000" data-block_end="EFFF">BMP-15: U+E000–U+EFFF</option>    <option id="BMP_Range_16" value="BMP_Range_16" data-block_start="F000" data-block_end="FFFF">BMP-16: U+F000–U+FFFF</option>    </optgroup>
  530. 				<optgroup label="Supplementary Multilingual Plane" data-block_start="10000" data-block_end="10FFF">     <option id="SMP_Range_01" value="SMP_Range_01">SMP-01: U+10000–U+10FFF</option>    <option id="SMP_Range_02" value="SMP_Range_02" data-block_start="11000" data-block_end="11FFF">SMP-02: U+11000–U+11FFF</option>    <option id="SMP_Range_03" value="SMP_Range_03" data-block_start="12000" data-block_end="12FFF">SMP-03: U+12000–U+12FFF</option>    <option id="SMP_Range_04" value="SMP_Range_04" data-block_start="13000" data-block_end="13FFF">SMP-04: U+13000–U+13FFF</option>    <option id="SMP_Range_05" value="SMP_Range_05" data-block_start="14000" data-block_end="14FFF">SMP-05: U+14000–U+14FFF</option>    <option id="SMP_Range_06" value="SMP_Range_06" data-block_start="15000" data-block_end="15FFF">SMP-06: U+15000–U+15FFF</option>    <option id="SMP_Range_07" value="SMP_Range_07" data-block_start="16000" data-block_end="16FFF">SMP-07: U+16000–U+16FFF</option>    <option id="SMP_Range_08" value="SMP_Range_08" data-block_start="17000" data-block_end="17FFF">SMP-08: U+17000–U+17FFF</option>    <option id="SMP_Range_09" value="SMP_Range_09" data-block_start="18000" data-block_end="18FFF">SMP-09: U+18000–U+18FFF</option>    <option id="SMP_Range_10" value="SMP_Range_10" data-block_start="19000" data-block_end="19FFF">SMP-10: U+19000–U+19FFF</option>    <option id="SMP_Range_11" value="SMP_Range_11" data-block_start="1A000" data-block_end="1AFFF">SMP-11: U+1A000–U+1AFFF</option>    <option id="SMP_Range_12" value="SMP_Range_12" data-block_start="1B000" data-block_end="1BFFF">SMP-12: U+1B000–U+1BFFF</option>    <option id="SMP_Range_13" value="SMP_Range_13" data-block_start="1C000" data-block_end="1CFFF">SMP-13: U+1C000–U+1CFFF</option>    <option id="SMP_Range_14" value="SMP_Range_14" data-block_start="1D000" data-block_end="1DFFF">SMP-14: U+1D000–U+1DFFF</option>    <option id="SMP_Range_15" value="SMP_Range_15" data-block_start="1E000" data-block_end="1EFFF">SMP-15: U+1E000–U+1EFFF</option>    <option id="SMP_Range_16" value="SMP_Range_16" data-block_start="1F000" data-block_end="1FFFF">SMP-16: U+1F000–U+1FFFF</option>    </optgroup>
  531. 				<optgroup label="Supplementary Ideographic Plane" data-block_start="20000" data-block_end="20FFF">     <option id="SIP_Range_01" value="SIP_Range_01">SIP-01: U+20000–U+20FFF</option>    <option id="SIP_Range_02" value="SIP_Range_02" data-block_start="21000" data-block_end="21FFF">SIP-02: U+21000–U+21FFF</option>    <option id="SIP_Range_03" value="SIP_Range_03" data-block_start="22000" data-block_end="22FFF">SIP-03: U+22000–U+22FFF</option>    <option id="SIP_Range_04" value="SIP_Range_04" data-block_start="23000" data-block_end="23FFF">SIP-04: U+23000–U+23FFF</option>    <option id="SIP_Range_05" value="SIP_Range_05" data-block_start="24000" data-block_end="24FFF">SIP-05: U+24000–U+24FFF</option>    <option id="SIP_Range_06" value="SIP_Range_06" data-block_start="25000" data-block_end="25FFF">SIP-06: U+25000–U+25FFF</option>    <option id="SIP_Range_07" value="SIP_Range_07" data-block_start="26000" data-block_end="26FFF">SIP-07: U+26000–U+26FFF</option>    <option id="SIP_Range_08" value="SIP_Range_08" data-block_start="27000" data-block_end="27FFF">SIP-08: U+27000–U+27FFF</option>    <option id="SIP_Range_09" value="SIP_Range_09" data-block_start="28000" data-block_end="28FFF">SIP-09: U+28000–U+28FFF</option>    <option id="SIP_Range_10" value="SIP_Range_10" data-block_start="29000" data-block_end="29FFF">SIP-10: U+29000–U+29FFF</option>    <option id="SIP_Range_11" value="SIP_Range_11" data-block_start="2A000" data-block_end="2AFFF">SIP-11: U+2A000–U+2AFFF</option>    <option id="SIP_Range_12" value="SIP_Range_12" data-block_start="2B000" data-block_end="2BFFF">SIP-12: U+2B000–U+2BFFF</option>    <option id="SIP_Range_13" value="SIP_Range_13" data-block_start="2C000" data-block_end="2CFFF">SIP-13: U+2C000–U+2CFFF</option>    <option id="SIP_Range_14" value="SIP_Range_14" data-block_start="2D000" data-block_end="2DFFF">SIP-14: U+2D000–U+2DFFF</option>    <option id="SIP_Range_15" value="SIP_Range_15" data-block_start="2E000" data-block_end="2EFFF">SIP-15: U+2E000–U+2EFFF</option>    <option id="SIP_Range_16" value="SIP_Range_16" data-block_start="2F000" data-block_end="2FFFF">SIP-16: U+2F000–U+2FFFF</option>    </optgroup>
  532. 				<optgroup label="Tertiary Ideographic Plane" data-block_start="30000" data-block_end="30FFF">     <option id="TIP_Range_01" value="TIP_Range_01">TIP-01: U+30000–U+30FFF</option>    <option id="TIP_Range_02" value="TIP_Range_02" data-block_start="31000" data-block_end="31FFF">TIP-02: U+31000–U+31FFF</option>    </optgroup>
  533. 				<optgroup label="Supplementary Special-Purpose Plane" data-block_start="E0000" data-block_end="E0FFF">     <option id="SSP_Range_01" value="SSP_Range_01">SSP-01: U+E0000–U+E0FFF</option>     </optgroup>
  534. 			</select></li>
  535. 		</ol>
  536. 		<ol id="font_specimen_adjustments" class="display_flex flex_row flex_grow_1">
  537. 			<li class="no_highlight" data-inputid="font_size"><span class="flex_justify_center"><input type="range" id="font_size" data-tab_order="14" name="font_size" min="0" max="2" step="any"><label for="font_size">Font Size</label></span></li>     <li class="no_highlight display_none" data-inputid="line_height"><span class="flex_justify_center"><input type="range" id="line_height" data-tab_order="15" name="line_height" min="-1.2" max="1.2" step="any"><label for="line_height">Line Height</label></span></li>    <li class="no_highlight display_none" data-inputid="letter_spacing"><span class="flex_justify_center"><input type="range" id="letter_spacing" data-tab_order="16" name="letter_spacing" min="-100" max="100" step="1"><label for="letter_spacing">Letter Spacing</label></span></li>
  538. 			<li class="spacer no_highlight width_100"></li>
  539. 			<li data-inputid="text_color" class="display_flex no_highlight"><span class="flex_justify_center position_relative"><textarea id="text_color" class="whitespace_pre resize_none" data-tab_order="17" rows="1" cols="7" spellcheck="false" placeholder="CSS color"></textarea> Text Color</span></li>     <li data-inputid="text_stroke_width" class="display_flex no_highlight"><span class="flex_justify_center"><input type="range" id="text_stroke_width" data-tab_order="18" name="font_size" min="-0.5" max="0.5" step="any" title="In supported browsers only."><label for="text_stroke_width">Text Stroke Width</label></span></li>     <li data-inputid="text_stroke_color" class="display_flex no_highlight"><span class="flex_justify_center position_relative"><textarea id="text_stroke_color" class="whitespace_pre resize_none" data-tab_order="19" rows="1" cols="7" spellcheck="false" placeholder="CSS color"></textarea>Text Stroke Color</span></li>
  540. 		</ol></div>`;
  541. 	const Content_Font_Elements = function() {
  542. 		const sample_string = `ABCDEFGHIJKLMNOPQRSTUVWXYZ<br />abcdefghijklmnopqrstuvwxyz<br />0123456789<br />!"#$%&'()*+,-./:;<=>?@[\\]^_\`{|}~`;
  543. 		const lorem_string = `Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.`;
  544. 		return `<div id="font_specimen_viewer" class="padding_0 display_none">
  545. 					<ol id="font_specimen_grid" class="font_grid display_grid overflow_visible"></ol>
  546. 					<div id="font_specimen">    <div id="font_specimen_1" class="specimen border_bottom_x margin_0 overflow_visible normal" data-tab_order="1" contenteditable="true">${ sample_string }</div>    <div id="font_specimen_2" class="specimen border_bottom_x align_left overflow_visible normal" data-tab_order="2" contenteditable="true" tabindex="0"><h2 id="specimen_2" class="margin_0 line_height_1 normal">Typography</h2><p id="specimen_2H4">The art of using types to produce impressions on paper, vellum, &amp;c.</p></div>    <div id="font_specimen_3" class="specimen border_bottom_x align_justify overflow_visible normal line_height_1" data-tab_order="3" contenteditable="true"><h3 id="specimen_3" class="margin_0 normal">S P E C I M E N</h3><p id="specimen_3H3" class="margin_0">Typography is the work of typesetters (also known as compositors), typographers, graphic designers, art directors, manga artists, comic book artists, graffiti artists, and, now, anyone who arranges words, letters, numbers, and symbols for publication, display, or distribution.</p></div>    <div id="font_specimen_4" class="specimen overflow_visible normal" data-tab_order="4" contenteditable="true" tabindex="0">     <div id="lorem" class="lorem align_justify">${ lorem_string }</div><div id="lorem_2" class="lorem align_justify">${ lorem_string }</div><div id="lorem_3" class="lorem align_justify">${ lorem_string }</div></div></div>
  547. 					<div id="font_specimen_glyph_viewer" class="background_grey_90 display_none overflow_visible normal"><div id="font_specimen_glyph" class="flex_justify_center position_fixed position_0 z_index_2" data-scale="1"></div><div id="font_specimen_glyph_overlay" class="position_fixed position_0 background_grey_100 z_index_1"></div></div>
  548. 				</div>    ${ Content_Font_Viewer }`;
  549. 	};
  550. 	const Content_Header_Elements = `
  551. 		<header id="content_header" class="font_size_small z_index_3">
  552. 			<div id="audio_wrapper" class="text_color_default background_grey_75 display_none">     ${ Content_Audio_Elements }     </div>
  553. 			<div id="content_title_container" class="title display_flex text_color_default border_bottom">
  554. 				<div id="title_buttons_left" class="display_flex padding_4_6 align_left">
  555. 					<nav id="cuesheet_track_list_container_video" class="cuesheet_track_list_container background_grey_75" title="Cue sheet track list"><div class="box_shadow_menu display_none font_size_small position_absolute position_LR_0 z_index_1"><ul id="cuesheet_track_list_video" class="cuesheet_track_list border_bottom margin_0 padding_0 display_none"></ul></div></nav>
  556. 					<button id="reload_btn" tabindex="-1"><span></span></button>     <button id="prev_next_btns" class="split_btn padding_0 position_relative display_none" tabindex="-1"><span id="prev_btn" class="prev_next_btn flex_justify_center"><span class="transform_rotate_270_contents">${ SVG_UI_Icons.chevron }</span></span><span id="next_btn" class="prev_next_btn flex_justify_center"><span class="display_flex transform_rotate_90_contents">${ SVG_UI_Icons.chevron }</span></span></button>
  557. 				</div>
  558. 				<div id="content_title" class="pointer center hyphens_none line_height_1_4 flex_justify_center_row flex_grow_1"><div><span class="has_icon_before bold"></span></div></div>
  559. 				<div id="title_buttons_right" class="display_flex padding_4_6 align_right">     <button id="scale" class="split_btn padding_0 position_relative display_none" tabindex="-1"><span id="decrease" class="flex_justify_center" title="Reduce"><div class="display_flex width_10px_contents">${ SVG_UI_Icons.minus }</div></span><span id="increase" class="flex_justify_center" title="Enlarge"><div class="display_flex width_10px_contents">${ SVG_UI_Icons.plus }</div></span></button>     <button id="open_in_texteditor" class="display_none" title="Open in Text Editor" tabindex="-1"><span>Edit</span></button>     <button id="save_svg" class="display_none whitespace_pre" title="Save glyph as svg"><span>Save SVG</span></button>     <button id="close_btn" tabindex="-1" title="Close Content"><span></span></button></div>
  560. 			</div>
  561. 			<div id="content_playlist_item" class="playlist_entry_container border_bottom background_grey_85 center display_none"><textarea id="content_playlist_item_textarea" class="text_color_default padding_4_6 border_0" rows="3" spellcheck="false"></textarea></div>
  562. 			${ font_toolbar }
  563. 		</header>`;
  564. 	// CONTENT containers
  565. 	const Content_Pane_Elements = `<div id="content_pane" class="display_flex flex_column flex_grow_1 position_relative padding_0" data-content="has_null">
  566. 		${ Content_Header_Elements }
  567. 		<main id="content_container" class="display_flex position_relative background_grey_85 margin_0 padding_0">     ${ SVG_UI_Icons.spinner }     <ol id="content_grid" class="content_el" data-kind="grid"></ol>     ${ Content_Text_Elements }     <div id="content_font" class="content_el background_grey_90 hyphens_none position_relative text_color_default" spellcheck="false" data-kind="font">${ Content_Font_Elements() }</div>     <div id="content_image_container" class="content_el background_grey_95 position_relative margin_0" data-kind="image"><img id="content_image" class="content_el position_relative" src="#" alt="" tabindex="0" /></div>     <embed id="content_pdf" class="content_el position_relative border_0" tabindex="0" data-kind="pdf">     <video id="content_video" class="content_el background_grey_95 media position_absolute" controls data-kind="video">Your browser does not support the video tag.</video>     <iframe id="content_iframe" class="content_el position_relative border_0" name="content_iframe" sandbox="allow-scripts allow-same-origin allow-modals allow-popups" tabindex="0"></iframe>     <iframe id="content_iframe_utility" class="display_none" name="content_iframe_utility" sandbox="allow-scripts allow-same-origin allow-modals allow-popups" tabindex="0"></iframe>     </main>
  568. 	</div>`;
  569. 	//==============================//
  570. 	// UTILITIES HTML (warnings and help)
  571. 	const Utilities_Warnings = `
  572. 		<header id="warnings_header" class="text_color_default background_grey_85"><h3 id="warning_header" class="display_none margin_0"><span>Warning:</span></h3><h3 id="make_playlist_header" class="display_none margin_0 normal"><span>Make Playlist/Filelist (.m3u)</span></h3></header>
  573. 		<div id="warnings" class="text_color_default background_grey_85">
  574. 			<div id="warning_open_font" class="warning">Are you sure you want to close the font file?</div>     <div id="warning_close_font" class="warning">Are you sure you want to close the font file?</div>     <div id="warning_unsaved_text" class="warning">You have unsaved changes.</div>     <div id="warning_clear_text" class="warning">Are you sure you want to clear all your text?</div>     <div id="warning_local_file" class="warning">Can&rsquo;t load local file from non-local page.</div>     <div id="warning_close_playlist" class="warning">Are you sure you want to close the playlist?</div>     <div id="warning_local_playlist" class="warning">This playlist contains local files. <br />&emsp;Please reload this playlist from a local page in order to play them.</div>     <div id="warning_non_local_file" class="warning">This is a non-local file/dir/link. Would you like to open it in a new window?</div>
  575. 			<div id="warning_make_playlist" class="warning">				<form id="make_playlist_form" action="#"><fieldset class="margin_0 padding_0 border_0">     				<div><input name="make_playlist" type="radio" id="all_items" checked><label for="all_items">All items</label></div>     <div class="indent"><input name="make_playlist" type="radio" id="directories_only"><label for="directories_only">Directories only</label></div>     <div class="indent"><input name="make_playlist" type="radio" id="files_only"><label for="files_only">Files only</label></div>     				<div><input name="make_playlist" type="radio" id="media_files_only"><label for="media_files_only">All media files</label></div>     <div class="indent"><input name="make_playlist" type="radio" id="audio_files_only"><label for="audio_files_only">Audio files only</label></div>     <div class="indent"><input name="make_playlist" type="radio" id="video_files_only"><label for="video_files_only">Video files only</label></div>				<div><input name="make_playlist" type="radio" id="all_non_media_files"><label for="all_non_media_files">All non-media items</label></div>     				</fieldset></form>			</div>
  576. 		</div>
  577. 		<div id="warning_buttons_container" class="display_flex flex_column background_grey_90">     <div id="warning_buttons" class="display_flex flex_row">     <button id="warning_btn_dont_save" class="warning_button">Don&rsquo;t Save</button>     <button id="warning_btn_cancel" class="warning_button">Cancel</button>     <button id="warning_btn_clear" class="warning_button">Clear</button>     <button id="warning_btn_save" class="warning_button">Save</button>     <button id="warning_btn_ok" class="warning_button">OK</button>     </div>     </div>`;
  578. 	const Utilities_Help = `
  579. 		<header id="help_header" class="title display_grid padding_4_6 position_LR_0 text_color_default border_bottom_x background_grey_75 center position_fixed"><span class="spacer"></span><span class="bold flex_justify_center">HELP</span><button id="close_help" class="focus"><span>Close</span></button></header><section class="line_height_1_4">
  580. 	<ol style="margin:1em 3em 0;list-style-type:decimal;" class="no_highlight bold">CONTENTS<li class="no_highlight">I. About this Script</li><li class="no_highlight">II. Keyboard Shortcuts</li><li class="no_highlight">III. Usage: The Main Menu</li><li class="no_highlight">IV. Other Script Functions</li><li class="no_highlight">V. Troubleshooting</li></ol>
  581. 	<h2><strong>I. ABOUT THIS SCRIPT</strong></h2>
  582. 		<p>This script works &ldquo;out-of-the-box&rdquo; on local directories. To enable it to work on a remote directory, add its url to the list of included/allowed sites in your userscript manager&rsquo;s settings for this script.</p>
  583. 		<p class="bold"><a href="https://openuserjs.org/scripts/gaspar_schot/Supercharged_Local_Directory_File_Browser" class="has_icon_before link text_color_default" target="_blank">Script home: openuserjs.org</a></p>
  584. 		<p><span style="float:left; margin:4px 6px 0 0;">${ SVG_UI_Icons.ui_layout }</span>The UI consists of two main parts: the navigation <strong>Sidebar</strong> on the left and the preview <strong>Content Pane</strong> on the right. The Sidebar shows all the files in the current directory, while the Content Pane shows a preview of the items selected in the Sidebar.</p>
  585. 		<p>The <strong>Sidebar</strong> contains a <strong>Header</strong> area, the <strong>Directory List</strong> itself, and a <strong>Footer</strong>.</p>
  586. 		<p>The <strong>Sidebar</strong> is resizeable, or it can be hidden entirely via the double-chevron button at the Sidebar top right.</p>
  587. 		<p>The <strong>Sidebar Header</strong> includes a <strong>Parent Directory</strong> button, a <strong>Parent Directories</strong> menu, and the <strong>Main Menu</strong>. and below these, <strong>Show Details</strong> and <strong>Show Invisibles</strong> items, a <strong>Show Grid</strong> button (when appropriate), and sort by <strong>Name</strong> or <strong>Default</strong> items; if <strong>Show Details</strong> is selected, additional sorting options are shown, along with the <strong>Text Editor</strong> item. All of these items are also available in the Main Menu, and some can be toggled via a keyboard shortcut (see below).</p>
  588. 		<p> The <strong>Content Pane</strong> displays the selected sidebar item.</p> 
  589. 		<ul><li class="no_hover no_highlight">The content pane can be focused by tabbing from the sidebar or clicking.</li>
  590. 		<li class="no_hover no_highlight">Clicking the title of the content pane title reveals a playlist item than can be copied into an m3u file.</li>
  591. 		<li class="no_hover no_highlight">Previewed Content</li> 
  592. 		<ul><li class="no_hover no_highlight">Directories
  593. 			<dl><dd><Previewed directories in the Content Pane inherit the sorting and other UI preferences from the Sidebar directory list. They can be navigated independently from the Sidebar via the “Parent Directory” link in the header or Cmd-Up Arrow.</dd>
  594. 		<dd>An item in the content pane header allows previewed directories to be opened into the sidebar.</dd>
  595. 		<dd>A selected item can be previewed by pressing the spacebar. This is similar to the &ldquo;quicklook&rdquo; function in MacOS.</dd>
  596. 		<dd>Double-clicking a selected directory list item or typing Cmd-Down Arrow will open it in the content pane, replacing the previewed directory. Closing the item via the Close Button or Cmd-W will restore the original previewed directory.</dd>
  597. 		</dl>
  598. 		</li>
  599. 		</li>
  600. 		<p>The <strong>Footer</strong> displays <strong>Stats</strong> for the items in the current directory, with detailed stats shown if you click the footer. There is also a popup menu on the right that allows you to display the Sidebar  directory or the raw directory index in the Content Pane.</p>
  601. <ul id="utilities_help" class="info_list font_size_small border_all padding_0 no_highlight">     <li id="shortcuts" class="info_list_header display_grid center bold no_hover no_highlight"><span class="col_1">II. KEYBOARD SHORTCUTS</span><span class="col_2">DESCRIPTION</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&uarr;</kbd> or <kbd>&darr;</kbd></span><span class="col_2">Select the previous/next sidebar item or previewed directory item.<br />If audio is playing, and the previous/next file is also audio, the file will be highlighted but not loaded in the audio player; press <kbd>return</kbd> to load it.</span></li>          <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&larr;</kbd> or <kbd>&rarr;</kbd></span><span class="col_2">Select prev/next item of the same kind as the current selection.<br />If current selection is a media file, select and begin playback of the next media item.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8997;</kbd><kbd>&larr;</kbd> or <kbd>&#8594;</kbd></span><span class="col_2">Skip media &plusmn;10 seconds.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8997;</kbd><kbd>&#8679;</kbd><kbd>&larr;</kbd> or <kbd>&rarr;</kbd></span><span class="col_2">Skip media &plusmn;30 seconds.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&uarr;</kbd></span><span class="col_2">Go to parent directory.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&darr;</kbd></span><span class="col_2">Go to selected sidebar directory.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&rarr;</kbd></span><span class="col_2">Open selected sidebar directory as subdirectory.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&larr;</kbd></span><span class="col_2">1. Close selected subdirectory, or <br />2. jump from selected subdirectory item to parent directory, or <br />3. jump up to closest open subdirectory, or <br />4. jump up to top of directory list.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>Escape</kbd></span><span class="col_2">Close menus and help, unfocus textareas and content pane, etc.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>Return</kbd></span><span class="col_2">Open selected sidebar directory, select file, or pause/play media.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>Space</kbd></span><span class="col_2">Pause/Play media files (if media player loaded).<br />&ldquo;Quicklook&rdquo; selected content pane directory list item.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>Tab</kbd></span><span class="col_2">Toggle focus between sidebar and content pane.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>D</kbd></span><span class="col_2">Toggle file details (size, date modified, kind) in some index page types.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>E</kbd></span><span class="col_2">Toggle main menu.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>E</kbd></span><span class="col_2">Show text editor.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>G</kbd></span><span class="col_2">Show or reload image or font grids.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>I</kbd></span><span class="col_2">Toggle invisible files.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>J</kbd></span><span class="col_2">Go to item by row number.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>O</kbd></span><span class="col_2">Open selected sidebar item in new window/tab.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>R</kbd></span><span class="col_2">Reload grids and previewed content, reset scaled images/fonts, reset media files to beginning.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>W</kbd></span><span class="col_2">Close previewed content (doesn&rsquo;t work in all browsers; use close button instead), or close window if no content is being previewed.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>&#8679;</kbd><kbd>&lt;</kbd> or <kbd>&gt;</kbd></span><span class="col_2">Scale preview items and grids.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8984;</kbd><kbd>\\</kbd></span><span class="col_2">Toggle sidebar.</span></li>     <li class="display_grid no_hover no_highlight"><span class="col_1"><kbd>&#8679;</kbd><kbd>&#8984;</kbd><kbd>\\</kbd></span><span class="col_2">Toggle text editor split view.</span></li>     </ul>
  602. 	<h2 id="usage"><strong>III. USAGE</strong></h2>
  603. 	<div id="help_main_menu" class="border_top_x invert">
  604. 		<p><span class="invert width_14px_contents">${ SVG_UI_Icons.menu }</span><strong> MAIN MENU</strong> (&#8984;+E)<br />The Main Menu contains the following top-level items:<p>
  605. 		<ol style="margin:0 3em;list-style-type:decimal;" class="no_highlight bold"><li class="no_highlight">Go to item... (&#8984;+&#8679;+J)</li><li class="no_highlight" style="margin-top:6px;">Sort by...</li><li class="no_highlight" style="margin-top:6px;">UI Preferences</li><li class="no_highlight">File Handling Preferences</li><li class="no_highlight">Media Preferences</li><li class="no_highlight">Text Editing Preferences</li><li class="no_highlight">Default Preferences</li><li class="no_highlight" style="margin-top:6px;">Playlists</li><li class="no_highlight" style="margin-top:6px;">Open Font File...</li><li class="no_highlight" style="margin-top:6px;">Script Home</li><li class="no_highlight">Help</li><li class="no_highlight">Buy me a Coffee</li><li class="no_highlight">Contact</li></ol>
  606. 		<dl class="border_top_x padding_top_1rem"><dt>1. Go to Item...</dt> <dd>Select a sidebar item by its row number (displayed if "Show Numbers" pref is set). Useful especially for large directories. Directory list can also be navigated by typed strings.</dd></dl>
  607. 		<dl class="border_top_x padding_top_1rem padding_bottom_1rem"><dt>2. Sort By...</dt><dd>Sort directory items by <strong>Name</strong>, <strong>Size</strong>, <strong>Date</strong>, <strong>Kind</strong>, <strong>Extension</strong>, <strong>Duration</strong> (media items only). <strong>Default</strong> sort = sort items by Name, with directories on top.</dd>
  608. 		<dd>Clicking the sort preference again will reverse the sort.</dd>
  609. 		<dd>Sorting preferences are also available in the Sidebar Header.</dd>
  610. 		<dd>Note that many server configurations don't report directory size, so when sorting by size, directories will be on top, sorted by name.</dd>
  611. 		</dl>
  612. 	<p class="border_top_x"><strong>3. UI PREFERENCES</strong><br />Selecting one of the sorting or preferences items will add the new preference setting to the URL query string, so that the setting will persist as you navigate within the same window, or if you bookmark the page.</p>
  613. 		<dl><dt>a. Light Theme/Dark Theme</dt>						<dd>Change the UI theme.</dd></dl>
  614. 		<dl><dt>b. Alternate Backgrounds</dt>						<dd>Alternate background colors for directory list items.</dd></dl>
  615. 		<dl><dt>c. Show Numbers</dt>								<dd>Show numbers for directory list items.</dd></dl>
  616. 		<dl><dt>d. Use Custom Icons</dt>							<dd>If enabled, use file and directory items provided by the script; if disabled, use the browser's default icons.</dd></dl>
  617. 		<dl><dt>e. Show Image Thumbnails</dt>						<dd>Replaces the generic image file icon with a small thumbnail of the image itself. Enabling this setting may slow down page load, because each image file in the directory must be processed.</dd></dl>
  618. 		<dl><dt>f. Use Large Image Thumbnails</dt>					<dd>If "Show Image Thumbnails" is enabled, the thumbnail enlarged.</dd></dl>
  619. 		<dl><dt>g. Always Show Image Thumbnails</dt>				<dd>Image thumbnails are always shown, no matter how many images are in the directory. This overrides the default behavior which automatically disables thumbnail display for directories containing more than 2000 items in order to improve performance.</dd></dl>
  620. 		<dl><dt>h. Set UI Font</dt>									<dd>Set a custom font for the UI.</dd></dl>
  621. 		<dl><dt>i. Scale UI</dt>									<dd>Scale the entire UI (50%–150%). Double-click the label to quickly reset the scale to 100%.</dd></dl>
  622. 	<p class="border_top_x"><strong>4. FILE HANDLING PREFERENCES</strong></p>
  623. 		<dl><dt>a. Show/Hide Invisible Items</dt>					<dd>It does what it says on the tin...</dd></dl>
  624. 		<dl><dt>b. Show/Hide Ignored Items</dt>		<dd>Ignored items include files that the browser cannot handle natively (e.g., common Office and graphics files, various binary files, etc.). Hide them to reduce clutter.</dd>
  625. 		<dl><dt>c. Ignore Ignored Items</dt>	<dd>Prevent normal browser behavior for handling such files, which is to open a download file dialog.</dd></dl>
  626. 		<dl><dt>d. Autoload Index Files</dt>						<dd>Automatically load "index.html" or similar files in the Content Pane when the directory loads.</dd></dl>
  627. 	<p class="border_top_x"><strong>5. MEDIA PREFERENCES</strong></p>
  628. 		<dl><dt>a. Autoload Media</dt>								<dd>If enabled, automatically load the first media file (audio or video) when the directory loads.</dd>
  629. 																<dd>For audio files, this will also automatically load any “cover art” (image file) found in the same directory. The script will first look for an image file with <i>exactly</i> the same name as the currently selected/playing audio file, followed in order by files containing the words “cover”, “front”, “album”, “jacket”, “sleeve”, “cd”, “disc”, “insert”, “liner”, or “notes.” If it finds no matching files, it will load the first image file it finds. Cover art will be automatically loaded whenever a new audio file is selected for playback.</dd></dl>
  630. 		<dl><dt>b. Autoplay Media</dt>								<dd>If enabled, play the next media file when the currently playing media file ends.</dd></dl>
  631. 		<dl><dt>c. Play All Media Files</dt>						<dd>If disabled (and Autoplay Media enabled), only play media of the same type (audio or video) as the currently playing media file.</dd></dl>
  632. 		<dl><dt>d. Loop Media Playback</dt>						<dd>Loop media playback to the first media item when the last media item ends and continue playing. This option can also be enabled from the audio player.</dd></dl>
  633. 		<dl><dt>e. Shuffle Media Playback</dt>						<dd>Randomize the order of media playback. This option can also be enabled from the audio player.</dd></dl>
  634. 	<p class="border_top_x"><strong>6. TEXT EDITING PREFERENCES</strong></p>
  635. 		<dl><dt>a. Text Editing Enabled/Disabled</dt><dd>If text editing is disabled, text files are displayed as normal files.</dd></dl>
  636. 		<dl><dt>b. Text Editing Options</dt><dd>Toggle the Text Editor. Select Editor UI theme: Default = same as main UI. Toggle split view. Select view of raw text, preview text, rendered HTML.</dd></dl>
  637. 		<dl class="border_top_x padding_top_1rem padding_bottom_1rem"><dt>7. DEFAULT PREFERENCES</dt><dd>Resets UI to defaults by removing manually set preferences from the URL query string.</dd></dl>
  638. 	<p class="border_top_x"><strong>8. PLAYLISTS</strong></p>
  639. 		<dl><dt>a. Open Playlist/Filelist</dt>						<dd>Click to load a local .m3u file. See below for more details.</dd></dl>
  640. 		<dl><dt>b. Make Playlist/Filelist</dt><dd>Save the files in the current sidebar directory as an .m3u playlist/filelist. Choose audio, video, all media, all non-media, all items, directories or files only.</dd></dl>
  641. 		<dl class="border_top_x padding_top_1rem"><dt><strong>9. OPEN FONT FILE</strong></dt> <dd>Load a local font file to view information about the font and its complete glyph repertoire.</dd>
  642. 		<dd>Glyph grids can be navigated with the arrow keys. Individual glyphs can be selected by clicking them or pressing <kbd>Return</kbd>.</dd><dd>Individual glyphs may be saved as .svg files.</dd></dl>
  643. 		<dl class="border_top_x padding_top_1rem"><dt><strong>10. SCRIPT HOME</strong></dt> <dd><strong><a href="https://openuserjs.org/scripts/gaspar_schot/Supercharged_Local_Directory_File_Browser" class="link text_color_default" target="_blank">openuserjs.org</a></strong>.</dd>
  644. 		<dl><dt><strong>11. HELP</strong></dt><dd>Show this help page.</dd></dl>     
  645. 		<dl><dt><strong>12. BUY ME A COFFEE</strong></dt><dd><strong><a id="donate_link" class="ignore_warning" href="https://www.buymeacoffee.com/fiLtliTFxQ" target="_blank" rel="noopener">Coding is a lot of work...</a></strong></dd></dl>
  646. 		<dl><dt><strong>13. CONTACT</strong></dt><dd><strong><a id="contact_link" class="ignore_warning" href="mailto:mshroud@protonmail.com">Email</a></strong> me about anything to do with the script.</dd></dl>		
  647. 		</div>
  648. 		<h2 id="other_functions" class="border_top_x padding_top_1rem"><strong>IV. OTHER SCRIPT FUNCTIONS</strong></h2>
  649. 			<dl><dt>NAVIGATION</dt>
  650. 			<dd>Use the up and down arrow keys to navigate items in the sidebar and previewed directories in the content pane.</dd>
  651. 			<dd>Use the left and right arrow keys to navigate items of the same kind as the currently selected item.</dd>
  652. 			<dd>Use the Tab key to toggle the focus between the sidebar and the content pane.</dd>
  653. 			<dd>Type a letter or letters to navigate the directory by file name.</dd>
  654. 			<dd>Type Cmd+Down-Arrow to navigate to the selected directory.</dd>
  655. 			<dd>Click a directory icon in the sidebar or select it and type Cmd/Ctrl Right Arrow to open subdirectory; click again to close or type Cmd/Ctrl Left Arrow.</dd></dl><dl><dt>Images, Fonts, Font Glyphs</dt><dd>Previewed items can be scaled with <kbd>Cmd/Ctr +/&ndash;</kbd> keys.</dd></dl>     <dl><dt>IMAGE AND FONT GRIDS</dt><dd>If a directory contains images and/or font files, the "Show Grid" icon will appear in the sidebar. Click it (or type <kbd>Cmd/Ctr+G</kbd>) to show a grid of the available items.</dd><dd>Grids can be navigated with the arrow keys, and individual grid items may be viewed by clicking them or pressing <kbd>Return</kbd>.</dd><dd>When a grid item is being viewed, the grid can still be navigated with the arrow keys.</dd><dd>Closing a selected grid item will show the grid again.</dd></dl>     
  656. 			<dl><dt>PLAYLISTS AND FILELISTS (m3u)</dt><dd>The script supports basic .m3u playlists containing links to audio or video files. It also has custom support for "filelists," which are standard .m3u files that contain links to <i>any</i> type of file or directory.</dd><dd>Note: if you change the extension of an ordinary .m3u file to .txt, the script will read it normally as an editable text file.<br />Double-clicking the selected file in the sidebar, or typing <code>Cmd/Ctr + Down Arrow</code> or <code>Cmd/Ctr + Return</code>, will open the playlist/filelist in the sidebar.<br />NOTE: The text must begin with #EXTM3U for this work.</dd></dl>
  657. 			<dl><dt>CUE SHEETS (cue)</dt><dd>When a media file (audio or video) is loaded, the script will look for a .cue file in the same directory with <i>EXACTLY</i> the same name as the media file.</dd><dd>If it finds one, it will load the Track ID, the PERFORMER, the TITLE, and the INDEX (time position) into a menu next to the audio player; there is no support for other commands.</dd><dd>Tracks can be selected by clicking the item, and played or paused by clicking the selected item.</dd><dd>.cue files can also be selected independently in the sidebar and edited and saved (locally). This may be handy for creating "on the fly" bookmarks for a long media track before closing the page.</dd><dd>Note that you can also create and save (locally) a new .cue file by using the Text Editor.</dd><dd>Note (MacOS): If you prefer not to clutter the sidebar with .cue files, you may make them invisible by adding a dot to beginning of the file name; the script will still find them.</dd></dl>
  658. 		<h2 id="troubleshooting" class="border_top_x padding_top_1rem"><strong>V. TROUBLESHOOTING</strong></h2>
  659. <dl><dt>The script doesn‘t work with a specific directory.</dt><dd>If you have a javascript blocker installed in your browser (and if you don’t, you should), try disabling some of the site-specific scripts and XHR requests, as they may be interfering with the execution of this script.</dd><dd>Alternately, if you do have a javascript blocker installed, you may need to allow some scripts and XHR requests instead.</dd><dd>If the open directory still does not display correctly, check to see if cookies from the site are blocked.</dd><dd>Try deleting preferences from the Main Menu or removing the query string from the URL in the browser.</dd></dl>
  660. 		<dl><dt>A specific item in a directory does not display correctly.</dt><dd>Confirm that the file is one that browser is capable of rendering. This script cannot display files that the browser itself cannot display.</dd><dd>If the item is from a playlist (m3u) and links to a remote site (e.g., archive.org), check your javascript blocker and cookies for any that need to be allowed from that site.</dd></dl>
  661. 		<dl><dt>If you think you have found a bug, please <a class="ignore_warning" href="mailto:mshroud@protonmail.com"><i>contact me</i></a>.</dt></dl><p>&nbsp;</p></div>
  662. 		</div>
  663. 		</section>`;
  664. 	let Utilities_Elements = function(body_id) {
  665. 		let help_elements = '';		if ( body_id === 'top_body' ) { help_elements = `<aside id="help_container" class="background_grey_90 display_none">${ Utilities_Help }</aside>`; }
  666. 		return `<div id="utilities" class="position_absolute display_none position_LR_0 z_index_9999"> <aside id="warnings_container" class="overflow_hidden background_grey_90 hyphens_none z_index_9999">${ Utilities_Warnings }</aside> ${ help_elements } </div>`;
  667. 	}
  668. 	// ===> END UI HTML
  669. 	//==============================//
  670. 	// ===> STYLES
  671. 	const background_images = `
  672. 		/* BACKGROUND IMAGES & FILE ICONS */
  673. 		.menu_item::before										{ content:""; width:12px; max-width:12px; min-width:12px; height:9px; margin:2px 0 -2px; background-position:center; background-repeat:no-repeat; display:flex; }
  674. 		.submenu .menu_item::before								{ width:24px; max-width:24px; min-width:24px; }
  675. 		.has_background, .has_background_before::before, .has_background_after::after	{ background-repeat:no-repeat; background-position:center; background-color:transparent !important; }
  676. 		.bookmark > a::before															{ background-image:${ get_SVG_UI_Icon("bookmark") }; }
  677. 		:is(.sort_by_default #menu_sort_by_default, .sort_by_name #menu_sort_by_name, .sort_by_duration #menu_sort_by_duration, .sort_by_size #menu_sort_by_size, .sort_by_date #menu_sort_by_date, .sort_by_kind #menu_sort_by_kind, .sort_by_ext #menu_sort_by_ext, #menu_theme_container, #toggle_text_editing)  .menu_item::before,		:is(.sort_by_default #sort_by_default, .sort_by_name #sort_by_name, .sort_by_duration #sort_by_duration, .sort_by_size #sort_by_size, .sort_by_date #sort_by_date, .sort_by_kind #sort_by_kind, .sort_by_ext #sort_by_ext) span::before,     .loop_media #loop_media_menu::before, .shuffle_media #shuffle_media_menu::before, .background_color_check_mark::before,		.texteditor_view_raw #toggle_texteditor_raw::before, .texteditor_view_preview #toggle_texteditor_preview::before, .texteditor_view_html #toggle_texteditor_html::before,		body:not(.text_editing_enable_false) #text_editing_enable::before, .texteditor_view_html #texteditor_view_html::before, .cuesheet_track.selected .cue_track_id::before, .menu_item.checkmark::before															{ background-image:${ get_SVG_UI_Icon("check_mark") }; }
  678. 		:is( .show_invisibles_false #show_invisible_items, .alternate_background_false #alternate_background, .show_numbers_false #show_numbers, .use_custom_icons_false #use_custom_icons, .show_image_thumbnails_false #show_image_thumbnails, .show_image_thumbnails_always_false #show_image_thumbnails_always, .show_large_image_thumbnails_false #show_large_image_thumbnails, .show_ignored_items_false #show_ignored_items, .ignore_ignored_items_false #ignore_ignored_items, .autoload_index_files_false #autoload_index_files, .media_autoload_false #media_autoload, .media_autoplay_false #media_autoplay, .media_play_all_false #media_play_all, .texteditor_split_view_false #texteditor_split_view ) .menu_item.checkmark::before
  679. 																						{ background-image:none; }
  680. 		.sort_by_default #sort_by_default span::after, .sort_by_name #sort_by_name span::after, .sort_by_duration #sort_by_duration span::after, .sort_by_size #sort_by_size span::after, .sort_by_date #sort_by_date span::after, .sort_by_kind #sort_by_kind span::after, .sort_by_ext #sort_by_ext span::after			{ background-image:${ get_SVG_UI_Icon("chevron") }; background-size:75%; transform:rotate(180deg); }
  681. 		.is_error #dir_nav, .is_error #current_dir_path span::before					{ background-image:${ get_SVG_UI_Icon("error") }; }
  682. 		.is_error #dir_nav																{ background-repeat:no-repeat; background-position:center top 6rem; background-size:6rem;}
  683. 		.is_error #current_dir_path span::before										{ float:none; display:inline-flex; margin:0 0 -2px 0; width:24px; }
  684. 		#content_pane[data-content="has_ignored"] #content_container					{ background-image:${ get_SVG_UI_File_Icon('file_icon_ignored') }; background-size:28px; }
  685. 		#content_pane.has_audio[data-content="has_null"]:not([data-loaded="unloaded"]) #content_container, #content_pane.has_audio:not([data-content]) #content_container, .has_audio #content_pane[data-content="has_null"]:not([data-loaded="unloaded"]) #content_container, .has_audio #content_pane:not([data-content])[data-loaded="loaded"] #content_container
  686. 																						{ background-image:${ get_SVG_UI_Icon("music") }; }
  687. 			${ CSS_UI_Icon_Rules() }
  688. 		#dir_menu_main ul a::before														{ background-image:${ get_SVG_UI_File_Icon('file_icon_file') }; }
  689. 		#dir_menu_main ul a[href^="file"]::before, #current_dir_path span::before		{ background-image:${ get_SVG_UI_File_Icon('file_icon_dir') }; margin-bottom:-3px; }
  690. 		#dir_menu_main ul a[href^="http"]::before 										{ background-image:${ get_SVG_UI_File_Icon('file_icon_htm') }; }
  691. 		body.use_custom_icons_false .dir .has_icon_before_before 						{ background-image:${ get_SVG_UI_File_Icon('file_icon_dir_default') }; background-size:auto 13px; }
  692. 		body.use_custom_icons_false.show_image_thumbnails_false .file:not(.app) .has_icon_before_before, body.use_custom_icons_false:not(.show_image_thumbnails_false) .file:not(.app) .has_icon_before_before
  693. 																						{ background-image:${ get_SVG_UI_File_Icon('file_icon_file_default') }; background-size:auto 13px; }
  694. 		body:not(.use_custom_icons_false).show_image_thumbnails_false .image .has_icon_before_before	{ background-image:${ get_SVG_UI_File_Icon('file_icon_image') } }
  695. 		.has_playlist #current_dir_path span::before									{ background-image:${get_SVG_UI_File_Icon('file_icon_playlist')}; display:inline-flex; margin:-2px 0 0; width:24px; vertical-align:middle;}
  696. 		.dirlist_item.dir:not(.has_subdirectory) .has_icon_before_before:hover			{ background-image:${ get_SVG_UI_Icon('chevron') }; transform:rotate(90deg); filter:invert(1); }
  697. 		.dirlist_item.dir.has_subdirectory .has_icon_before_before:hover				{ background-image:${ get_SVG_UI_Icon('chevron') }; transform:rotate(180deg); filter:invert(1); }
  698. 		.dirlist_item.non_local .name_span span::before									{ background-image:${ get_SVG_UI_Icon('external_link') }; content:""; width:20px; min-width:20px; height:14px; margin-top:-3px; margin-bottom:-3px; background-position:left center; background-repeat:no-repeat; background-blend-mode:screen; display:inline-block; }
  699. 		.dirlist_item.dir:is(.selected,:hover) a .has_icon_before_before, .dirlist_item.other:is(.selected,:hover) a .has_icon_before_before,
  700. 		.dirlist_item.system:is(.selected,:hover) a .has_icon_before_before, .dirlist_item.bin:is(.selected,:hover) a .has_icon_before_before,
  701. 		.dirlist_item.invisible:is(.selected,:hover) a .has_icon_before_before, .dirlist_item.markdown:is(.selected,:hover) a .has_icon_before_before
  702. 																						{ filter:brightness(var(--brightness_low)); }
  703. 		.theme_light .dirlist_item.audio:is(.selected,:hover) a .has_icon_before_before	{ filter:brightness(.66) contrast(1.66) saturate(2.66); mix-blend-mode:hard-light; }
  704. 		.theme_dark  .dirlist_item.audio:is(.selected,:hover) a .has_icon_before_before	{ filter:brightness(1.33); }
  705. 		.dirlist_item.selected:is(.archive,.app) a .has_icon_before_before, .dirlist_item:is(.archive,.app):hover a .has_icon_before_before
  706. 																						{ filter:brightness(var(--brightness_high)) saturate(6); }
  707. 		.dirlist_item.non_local:is(.selected,.audio_loaded) .name_span span::before, .dirlist_item.non_local:hover .name_span span::before							{ filter:brightness(2); }
  708.  
  709. 		.dirlist_subdir_loading .has_icon_before_before									{ background-image:${ get_SVG_UI_Icon('spinner') } !important; filter:invert(1); background-size:20px; }
  710. 	`;
  711. 	const global_styles = `
  712. 		:root 														{ --font_size_small:0.875rem; color-scheme:none; --text_color_default:hsl(0,0%,var(--percent_10)); --text_color_selected:white; }
  713. 		.theme_light {
  714. 			--percent_100:100%; --percent_95:95%; --percent_90:90%; --percent_85:85%; --percent_80:80%; --percent_75:75%; --percent_70:70%; --percent_65:65%; --percent_60:60%; --percent_55:55%;
  715. 			--percent_50:50%;   --percent_45:45%; --percent_40:40%; --percent_35:35%; --percent_30:30%; --percent_25:25%; --percent_20:20%; --percent_15:15%; --percent_10:10%; --percent_05:05%; --percent_00:00%;
  716. 			--border_lum:40%;	--border_lum_inverted:40%;			--brightness_low:1.15;	--brightness_med:1.33;	--brightness_high:1.875;
  717. 		}
  718. 		.theme_dark {
  719. 			--percent_100:00%;	--percent_95:05%; --percent_90:10%;	--percent_85:15%; --percent_80:20%; --percent_75:25%; --percent_70:30%; --percent_65:35%; --percent_60:40%; --percent_55:45%;
  720. 			--percent_50:50%;	--percent_45:55%; --percent_40:60%;	--percent_35:65%; --percent_30:70%; --percent_25:75%; --percent_20:80%; --percent_15:85%; --percent_10:90%; --percent_05:95%; --percent_00:100%;
  721. 			--border_lum:05%;	--border_lum_inverted:40%;			--brightness_low:1.15;	--brightness_med:1.5;	--brightness_high:1.66;
  722. 		}
  723. 		:root, html, body																		{ margin:0; padding:0; border:0; border-radius:0; overflow:hidden; display:flex; flex-direction:row; width:100%; height:100vh; font-family:${UI_Prefs_Non_Bool.ui_font}; font-size:${ UI_Prefs_Non_Bool.ui_font_size}; hyphens:auto; transform-origin:0 0; }
  724. 		a, a:hover																				{ color:inherit; font-weight:inherit; text-decoration:none !important; }
  725. 		ul, li																					{ list-style:none; }
  726. 		svg																						{ margin:auto; }
  727. 		.selected, .audio_loaded { --background_opacity:1; }				:hover, .hovered 	{ --background_opacity:0.75; }
  728. 		.focus_content #dir_wrapper .selected,	.focus_content #dir_wrapper .audio_loaded		{ --background_opacity:0.50; }
  729. 		.focus_content #dir_wrapper :hover, 	.focus_content #dir_wrapper .hovered			{ --background_opacity:0.25; }
  730. 		.align_left { text-align:left; }    .center { text-align:center; }    .align_right { text-align:right; }    .align_justify { text-align:justify; text-justify:inter-character; hyphens:auto; }
  731. 		.background_grey_60				{ background-color:hsl(0,0%,var(--percent_60)); }				.background_grey_65						{ background-color:hsl(0,0%,var(--percent_65)); }
  732. 		.background_grey_70				{ background-color:hsl(0,0%,var(--percent_70)); }				.background_grey_75, body				{ background-color:hsl(0,0%,var(--percent_75)); }
  733. 		.background_grey_80				{ background-color:hsl(0,0%,var(--percent_80)); }
  734. 		.background_grey_85, .dirlist_item:nth-of-type(odd), .cuesheet_track:not(.header):nth-of-type(odd), #utilities_help li:nth-of-type(even), body.alternate_background_false .dirlist_item:nth-of-type(even)
  735. 										{ background-color:hsl(0,0%,var(--percent_85)); }
  736. 		.background_grey_90, .dirlist_item:nth-of-type(even), .cuesheet_track:not(.header):nth-of-type(even), #stats li:nth-of-type(even)		{ background-color:hsl(0,0%,var(--percent_90)); }
  737. 		.background_grey_95,  .background_grey_90:hover, .background_grey_90.hovered, .background_grey_90.selected, .background_grey_90:focus	{ background-color:hsl(0,0%,var(--percent_95)); }
  738. 		.background_grey_100, .background_grey_95:hover, .background_grey_95.hovered, .background_grey_95.selected								{ background-color:hsl(0,0%,var(--percent_100)); }
  739. 		${ background_images }
  740. 		.border_0			{ border:			none; }												.border_all			{ border:		solid 1px hsl(0,0%,var(--border_lum)); }
  741. 		.border_top			{ border-top: 		solid 1px hsl(0,0%,var(--border_lum)); }			.border_right		{ border-right:	solid 1px hsl(0,0%,var(--border_lum)); }
  742. 		.border_bottom		{ border-bottom:	solid 1px hsl(0,0%,var(--border_lum)); }			.border_left		{ border-left:	solid 1px hsl(0,0%,var(--border_lum)); }
  743. 		.border_top_x		{ border-top:		solid 1px hsl(0,0%,var(--border_lum_inverted)); }	.border_right_x		{ border-right:	solid 1px hsl(0,0%,var(--border_lum_inverted)); } /* "x" = inverted for theme_dark */
  744. 		.border_bottom_x	{ border-bottom:	solid 1px hsl(0,0%,var(--border_lum_inverted)); }	.border_left_x 		{ border-left:	solid 1px hsl(0,0%,var(--border_lum_inverted)); }
  745. 		.box_shadow_menu											{ box-shadow:0px 4px 6px -3px #000; }
  746. 		.display_grid, .info_list:hover li, .has_flyout_menu:hover ul	{ display:grid; }
  747. 		.display_none, .error_display_none { display:none; }    .display_block { display:block; }    .display_flex { display:flex; }    .display_inline_flex { display:inline-flex; }    .flex_column { flex-direction:column; } flex-direction:column; }    .flex_row { flex-direction:row; }
  748. 		.flex_justify_center										{ display:flex;  flex-direction:column;  justify-content:center;  flex-grow:1;  align-items:center;  align-self:stretch; text-align:center; }
  749. 		.flex_justify_center_row									{ display:flex;  flex-direction:row;     justify-content:center;  flex-grow:1;  align-items:center; }
  750. 		.flex_justify_contents										{ justify-content:space-between; }
  751. 		.flex_grow_1												{ flex-grow:1; }
  752. 		.font_size_small											{ font-size:var(--font_size_small); }
  753. 		.has_flyout_menu							 				{ outline:none; justify-content:center; align-content:center; }
  754. 		.has_flyout_menu ul li										{ width:100%; margin:0; padding:4px 6px; text-align:right; box-sizing:border-box; white-space:pre; grid-column:1; }
  755. 		.has_flyout_menu ul div										{ grid-column:2; padding-top:8px; }
  756. 		.has_flyout_menu .item_1 { grid-row:1; }    .has_flyout_menu .item_2 { grid-row:2; }
  757. 		.height_100													{ height:100%; }
  758. 		.hyphens_none												{ hyphens:none; }
  759. 		.info_list													{ background-color:hsl(0,0%,var(--percent_80)); color:hsl(0,0%,var(--percent_10)); }
  760. 		.info_list li												{ grid-template-columns:minmax(33%,100%) min(66%); border-top:solid 1px hsl(0,0%,var(--border_lum)); }
  761. 		.info_list li.info_list_header								{ border-top:none;  }
  762. 		.info_list li .col_1										{ font-weight:bold; text-align:right; border-right:solid 1px hsl(0,0%,var(--border_lum)); }
  763. 		.info_list span												{ display:inline-block; padding:4px 6px; }
  764. 		.line_height_1 { line-height:1; }    .line_height_1_2, .info_list span { line-height:1.2; }    .line_height_1_4 { line-height:1.4; }
  765. 		.margin_0, header, footer, nav, ol, ul, li					{ margin:0; }
  766. 		.media.local input											{ cursor:not-allowed; }
  767. 		.normal														{ font-weight:normal; }
  768. 		.overflow_auto { overflow:auto; }    .overflow_hidden { overflow:hidden; }    .overflow_visible { overflow:visible; }    .overflow_x_hidden { overflow-x:hidden; }
  769. 		.padding_0, header, footer, nav, a, ol, ul, li 				{ padding:0; }
  770. 		 .padding_4_6 { padding:4px 6px; }    .padding_4_8 { padding:4px 8px; }    .padding_6_8 { padding:6px 8px; }    .padding_top_1rem { padding-top:1rem; }    .padding_bottom_1rem { padding-bottom:1rem; }
  771. 		.pointer, label, input										{ cursor:pointer; }			.cursor_default { cursor:default; }
  772. 		input[disabled], input[disabled] + label					{ opacity:0.66; }
  773. 		div:has(> input[disabled]), input[disabled], input[disabled] + label					{ cursor:not-allowed; }
  774. 		.position_absolute { position:absolute; }    .position_relative { position:relative; }    .position_fixed { position:fixed; }    .position_0 { top:0; right:0; bottom:0; left:0; }    .position_LR_0 { left:0; right:0; }
  775. 		.resize_none												{ resize:none; }
  776. 		.theme_dark .invert											{ filter:invert(1); }
  777. 		.transform_rotate_90, 	.transform_rotate_90_contents > *	{ transform:rotate(90deg);  }
  778. 		.transform_rotate_180, .transform_rotate_180_contents > *	{ transform:rotate(180deg); }
  779. 		.transform_rotate_270, .transform_rotate_270_contents > *	{ transform:rotate(270deg); }
  780. 		.whitespace_pre												{ white-space:pre; }
  781. 		.width_10px, .width_10px_contents > * { width:10px; max-width:10px; min-width:10px; }    .width_12px, .width_12px_contents > * { width:12px; max-width:12px; min-width:12px; }
  782. 		.width_14px, .width_14px_contents > * { width:14px; max-width:14px; min-width:14px; }    .width_16px, .width_16px_contents > * { width:16px; max-width:16px; min-width:16px; }
  783. 		.width_18px, .width_18px_contents > * { width:18px; max-width:18px; min-width:18px; }    .width_24px, .width_24px_contents > * { width:24px; max-width:24px; min-width:24px; }
  784. 		.width_100													{ width:100% !important; }
  785. 		.z_index_1 { z-index:1; }    .z_index_2 { z-index:2; }    .z_index_3 { z-index:3; }    .z_index_9997 { z-index:9997; }    .z_index_9998 { z-index:9998; }    .z_index_9999 { z-index:9999; }
  786.  
  787. 	/* HIGHLIGHT COLORS: selected & hovered media and non_media items */
  788. 		.theme_light {
  789. 			--non_media_item_background_h:216deg;	--non_media_item_background_s:100%;		--non_media_item_background_l:50%;	--non_media_item_background_a:0.8;
  790. 			--media_item_background_h:180deg;		--media_item_background_s:100%;			--media_item_background_l:33%;		--media_item_background_a:1;
  791. 			--texteditor_item_background_h:250deg;	--texteditor_item_background_s:66%;		--texteditor_item_background_l:66%; --texteditor_item_background_a:1.00;
  792. 			}
  793. 		.theme_dark  {
  794. 			--non_media_item_background_h:216deg;	--non_media_item_background_s:80%;		--non_media_item_background_l:60%;	--non_media_item_background_a:0.8;
  795. 			--media_item_background_h:180deg;		--media_item_background_s:50%;			--media_item_background_l:40%;		--media_item_background_a:1;
  796. 			--texteditor_item_background_h:250deg;	--texteditor_item_background_s:50%;		--texteditor_item_background_l:60%; --texteditor_item_background_a:1.00;
  797. 		}
  798. 		li, div {
  799. 			--non_media_background:			hsla(var(--non_media_item_background_h),	var(--non_media_item_background_s),		var(--non_media_item_background_l),		var(--non_media_item_background_a));
  800. 			--media_background:				hsla(var(--media_item_background_h),		var(--media_item_background_s),			var(--media_item_background_l),			var(--media_item_background_a));
  801. 			--texteditor_item_background:	hsla(var(--texteditor_item_background_h),	var(--texteditor_item_background_s),	var(--texteditor_item_background_l),	var(--texteditor_item_background_a))
  802. 		}
  803. 			/* NON-MEDIA ITEMS BACKGROUND , li:not(.media):not(.no_highlight):hover, li.hovered */
  804. 		li.selected:not(.media), li:not(.media):not(.no_highlight):hover, li.hovered, li.content_loaded	{ background-color:var(--non_media_background) !important; }	/* all selected items, hovered non-dirlist items */
  805. 		#dir_nav li:not(.media):hover																{ --non_media_item_background_a:0.5;  background-color:var(--non_media_background); }	/* hovered dirlist items */
  806. 		li.grid_item.selected																		{ --non_media_item_background_a:0.75; background-color:var(--non_media_background); }	/* selected grid items */
  807. 		li.grid_item:hover, li.grid_item.hovered													{ --non_media_item_background_a:0.40;  background-color:var(--non_media_background); }	/* hovered grid items */
  808. 		body.no_hover li.grid_item:is(:not(.selected):hover,.hovered), body.no_hover li.grid_item:is(:not(.selected):hover,.hovered) * 		{ background-color:transparent !important; color:initial !important; }
  809. 		body.no_hover.theme_dark li.grid_item:is(:not(.selected):hover,.hovered), body.no_hover.theme_dark li.grid_item:is(:not(.selected):hover,.hovered) * 		{ color:hsl(0,0%,var(--percent_10)) !important; }
  810. 			/* MEDIA ITEMS BACKGROUND */
  811. 		li.audio_loaded, li.video.selected			{ 										background-color:var(--media_background) !important; }		/* loaded audio, selected video */
  812. 		li.selected.audio							{ --media_item_background_a:0.80;		background-color:var(--media_background) !important; }		/* selected audio */
  813. 		li.media:hover								{ --media_item_background_a:0.60;		background-color:var(--media_background) !important; }		/* hovered media */
  814. 		li.selected + li.selected:nth-of-type(even), li.dir.hovered + li.hovered:nth-of-type(even), li.file.hovered + li.hovered:nth-of-type(odd), .info_list li:nth-of-type(even)	{ --non_media_item_background_a:0.60; }		/* alternate highlight background with multiple selections, show stats*/
  815. 			/* UNHIGHLIGHTED ITEMS: menu visible, .focus_content, .no_hover */
  816. 		body[class*="has_menu"] #dir_nav, body.focus_content #dir_nav						{ --non_media_item_background_s:0%; --media_item_background_s:0%; }
  817. 		body.theme_light[class*="has_menu"] #dir_nav, body.focus_content #dir_nav			{ --media_item_background_l:50%; --non_media_item_background_l:50%; }
  818. 		body.theme_dark[class*="has_menu"] 	#dir_nav, body.focus_content #dir_nav			{ --media_item_background_l:40%; --non_media_item_background_l:30%; }
  819. 		body.no_hover #dir_nav li:nth-of-type(even):not(.selected):hover					{ background-color:hsl(0,0%,var(--percent_80)) !important; }
  820. 		body.no_hover #dir_nav li:nth-of-type(odd):not(.selected):hover						{ background-color:hsl(0,0%,var(--percent_85)) !important; }
  821. 		body.no_hover #dir_nav li:not(.selected):hover										{ color:unset !important; }
  822.  
  823. 			/* TEXTEDITOR ITEM*/
  824. 		body:is(.has_texteditor,.texteditor_edited) #show_texteditor li						{ background-color:var(--texteditor_item_background); }
  825. 		#show_texteditor li:hover 															{ --texteditor_item_background_a:0.7; background-color:var(--texteditor_item_background) !important; }
  826.  
  827. /* text color */
  828. 		li:is(.selected,:hover,.hovered), li:hover li:is(:hover,.selected), li.hovered li.selected, .content_loaded, .audio_loaded, body.has_texteditor #show_texteditor, body.texteditor_edited #show_texteditor,
  829. 		.no_hover .grid_item:is(.selected,:hover,.hovered), .no_hover .grid_item:is(.selected,:hover,.hovered) *, .grid_item:is(.selected,:hover,.hovered), .grid_item:is(.selected,:hover,.hovered) *, .grid_item.selected::before, .grid_item.selected::after	{ color:var(--text_color_selected) !important; }	/* white */
  830. 		li:is(.selected,:hover,.hovered) li, .text_color_default, .no_highlight, .no_highlight:hover, .no_highlight > li:hover, :hover:not(#svg_container) > svg, .font_glyph_item::before, .font_glyph_item::after, #font_specimen_viewer::before, .has_font_specimen_glyph #font_specimen_viewer::after, #font_file_glyph_viewer::before, #font_file_glyph_viewer::after									{ color:hsl(0,0%,var(--percent_10)) !important; }	/* default */
  831.  
  832. /* font weight */
  833. 		li:hover li, li.hovered li, li.selected li, body.no_hover li:hover, li:not(.grid_item).no_hover:hover																														{ font-weight:normal !important; }
  834. 		.bold, li:not(.grid_item):hover, li.hovered, li.hovered li:is(:hover,.selected), li:not(.grid_item).selected, li.selected li:hover, li.media[class*="_loaded"], #show_image_grid:hover, #show_font_grid:hover, dt
  835. 																																										{ font-weight:bold !important; }
  836. 		#content_pane[data-content="has_ignored"]::before																												{ opacity:0.3; }
  837. 		.has_warning #dir_wrapper, .has_warning #content_pane, .focus_content .dirlist_item, body:is(.has_menu,.has_menu_parents,.has_menu_stats,.has_menu_grid.has_images.has_fonts)  .dirlist_item:not(.hovered), body:is(.has_menu,.has_menu_parents,.has_menu_stats,.has_menu_grid.has_images.has_fonts)  #content_pane, #dir_menu_parent:not(:hover), #dir_menu_main_container:not(:hover) nav, #show_grid_btn, #dir_footer_utilities, .split_btn span, .disabled:not(.local)																																				{ opacity:0.75; }
  838. 		body.has_menu_footer .dirlist_item.hovered, .disabled:not(.local).selected																						{ opacity:0.84; }
  839. 		#show_grid_btn:hover, #prev_next_btns span:hover, #dir_footer_utilities:hover, .split_btn span:hover															{ opacity:1.0; }
  840. 	`;
  841. 	const utilities_styles = `
  842. 		#utilities															{ top:0; justify-content:center; }
  843. 		#warnings_container													{ width:26em; flex-direction:column; border-radius:0 0 3px 3px; box-shadow:0px 2px 12px #333; font-size:0.875em; color:#111; display:none; }
  844. 		#warnings_header													{ padding:1rem 1.5rem; background-position:left 1.25rem center; background-repeat:no-repeat; background-size:24px; }
  845. 		#warnings_container:not(.warning_make_playlist) #warnings_header	{ background-image:${ get_SVG_UI_Icon("error") }; }
  846. 		#warnings_header h3													{ text-indent:2.25em; }
  847. 		#warnings_container:not(.warning_make_playlist) h3#warning_header, #warnings_container.warning_make_playlist h3#make_playlist_header, .warning_button.show, #warnings div.show, .has_warning #utilities, .has_warning #warnings_container, .has_help #utilities, .has_help #help_container		{ display:flex;}
  848. 		#warnings .warning													{ padding:0 1.5rem 1rem; display:none; }
  849. 		#warning_buttons_container									 		{ padding:1rem 1.5rem; }
  850. 		button.focus, button:focus											{ background-color:#0E4399; color:#EEE; outline:none; }
  851. 		.warning_button														{ min-width:4em; display:none; font-size:1em; justify-content:center; }
  852. 		#warnings_container.warning_local_file #warning_local_file, #warning_btn_ok										{ margin-left:auto; }
  853. 		#warning_btn_cancel + #warning_btn_save, #warning_btn_dont_save + #warning_btn_cancel, #warning_btn_clear		{ margin-right:auto; }
  854. 		#warning_btn_cancel, #warning_btn_clear, #warning_btn_save			{ margin-left:0.5rem; }
  855. 		#warnings_container.clear #warning_buttons							{ justify-content:space-between; }
  856. 		#warning_make_playlist fieldset div									{ padding:0 0 2px; }
  857. 		#warning_make_playlist .indent										{ text-indent:2em; }
  858. 		#warning_make_playlist input										{ margin-right:6px; }
  859. 		#warnings_container.warning_local_playlist #warning_local_playlist, #warnings_container.warning_local_playlist #warning_btn_ok	{ display:inline-block; margin-left:auto; }
  860. 		.has_warning::before, .has_overlay::before							{ content:""; position:fixed; top:0; right:0; bottom:0; left:0; z-index:9998;-webkit-user-select:none;-moz-user-select:none; user-select:none; }
  861.  
  862. 		#help_container { padding:0 1em 1em;  overflow:auto; }					#help_container > header { grid-template-columns:5em auto fit-content(100%); }	#help_container > section { padding-top:2rem; }
  863. 		#help_container > section > div { margin-top:1rem; padding-top:1rem; }	#help_container dd { margin-inline-start:1em; }									#help_container dd:before { content:"\u2219"; margin-right:6px; }
  864. 		#help_container dl + p { margin-top:1rem; padding-top:1rem; }			#help_container ol li { list-style:decimal; }
  865. 		#help_container kbd { min-width:1em; height:fit-content; padding:2px 6px; display:inline-block; border:solid 1px #888; border-radius:3px; text-align:center; font-family:inherit; font-size:0.875em; background-color:hsl(0,0%,var(--percent_90)); }
  866. 		#help_bookmarks::before												{ background-image: ${ get_SVG_UI_Icon("bookmark") }; }
  867. 		.has_help #utilities, .has_help #help_container						{ bottom:0; }
  868. 	`;
  869. 	const dir_header_menu_styles = `
  870. 			/* PARENTS MENU */
  871. 		#parent_dir_nav #svg_chevron							{ width:18px; }		#parent_dir_nav #svg_multiply { width:14px; }
  872. 		#parent_dir_nav #svg_multiply, body:is(.has_playlist,.has_filelist) #svg_chevron, body:is(:not(.has_playlist),:not(.has_filelist)) #dir_header #close_playlist_container		{ display:none; }
  873. 		body.has_playlist #parent_dir_nav #svg_multiply, body.has_filelist #parent_dir_nav #svg_multiply, body:is(.has_playlist,.has_filelist) #dir_header #close_playlist_container 	{ display:flex; }
  874. 		#current_dir_path										{ padding:3px 6px; word-break:break-word; }
  875. 			/* MAIN MENU */
  876. 		#dir_menu_main li										{ display:flex; }
  877. 		#dir_menu_main li.has_submenu.selected .submenu			{ display:block; }
  878. 		#dir_menu_main li.has_submenu							{ position:relative; justify-content:space-between; }
  879. 		#dir_menu_main li.bookmark a::before					{ content:""; width:24px; max-width:24px; min-width:24px; height:12px; background-size:12px; }
  880. 		.submenu												{ width:100%; max-width:240px; display:none; margin:0; padding:0; position:absolute; top:-1px !important; left:100%; right:0; }
  881. 		#dir_menu_main ul.submenu li a							{ padding:6px 8px 6px 0; }
  882. 		#dir_menu_main input									{ width:0; float:left; }
  883. 		.menu_item												{ margin:0; padding:5px 8px 5px 0; display:flex; flex-grow:1; text-align:left; }
  884. 		#dir_menu_main .selected ~ li:hover .submenu, #dir_menu_main .selected ~ li .submenu:hover, .has_open, #dir_menu_main .show_input span.menu_item		{ display:none; }
  885. 		#dir_menu_main .show_input input						{ display:unset; margin:2px 6px; width:100%; }
  886. 		#dir_menu_main svg { margin: 0 6px; width:12px; }		#dir_menu_main li.selected svg, #dir_menu_main li:hover svg, #dir_menu_main li.hovered svg { filter:invert(1); }
  887. 		#ui_scale span.menu_item::after { content:attr(data-value); }		#ui_scale_input_container, #ui_scale.show_input span + span	{ display:flex; }		#ui_scale_input_container { padding-left:18px; padding-right:8px; }
  888. 			/* IFRAME MENUS */
  889. 		#parent													{ padding:5px 3px 5px 0; }
  890. 		#parent span											{ padding:0px 1px; }
  891. 		#open_in_sidebar										{ padding:5px 2px 5px 3px; }
  892. 	`;
  893. 	const dir_header_styles = `	/* for both sidebar and content_iframe */
  894. 		#dir_wrapper { font-variant-numeric:tabular-nums; }    #dir_wrapper.top_body { min-width:200px; }     #dir_wrapper.iframe { min-width:500px; flex-basis:100%; }
  895. 		#dir_header { user-select:none; -webkit-user-select:none; }
  896. 		.dir_header_title_div																	{ letter-spacing:0.5em; text-indent:0.75em; flex-basis:100%; }
  897. 		.dir_header_title_div:before { content:"INDEX OF"; }    .has_playlist .dir_header_title_div:before { content:"PLAYLIST"; }    .has_filelist .dir_header_title_div:before { content:"FILELIST"; }
  898. 		${ dir_header_menu_styles }
  899. 			/* SIDEBAR BUTTONS */
  900. 		#directory_buttons_left																	{ padding:6px; }
  901. 		#show_details																			{ margin-top:0; margin-right:8px; padding:0 4px; }
  902. 		#show::before																			{ content:"Show "; }
  903. 			/* GRID BTN ---> combine style with save_btn */
  904. 		#show_grid_btn																			{ margin:0 0 0 auto; }
  905. 		#show_grid_btn ul 																		{ display:none; padding-left:0px; top:-1px; right:-1px; }
  906. 		#show_grid_btn ul:after 																{ content:""; position:absolute; z-index:-1; top:0; bottom:0; left:0; right:0; background-color:hsl(0,0%,var(--percent_80)); }
  907. 		#show_grid_btn ul:not(:has(li:hover)):hover 											{ background-color:var(--non_media_background); }
  908. 		#show_grid_btn ul:not(:has(li:hover)):hover svg											{ color:white !important; }
  909. 		#show_grid_btn.has_grid div																{ color:#118888; }
  910. 		#top_body:is(.has_images,.has_fonts) #show_grid_btn										{ display:flex; }
  911. 		#top_body.has_images.has_fonts #show_grid_btn:hover ul									{ display:grid; }
  912. 			/* SORTING ITEMS */
  913. 		#sorting .sorting																		{ grid-row:1; }
  914. 		body:not(.show_details_false) #sorting_row_2											{ display:grid; }
  915. 		#sorting_row_1 span, #sorting_row_2 span, .sorting span::before, .sorting span::after	{ display:inline-block; }
  916. 		#sorting_row_1 span, #sorting_row_2 span												{ padding:6px 0; }
  917. 		#sorting_row_1.iframe span, #sorting_row_2.iframe span									{ padding:4px 0; }
  918. 		#sorting span::before, #sorting span::after, .sorting .menu_item::after					{ content:""; width:16px; height:8px; color:#CCC; background-position:center; background-repeat:no-repeat; background-size:10px; }
  919. 		.sorting.down span::after, .sort_direction_descending .sorting span::after				{ transform:rotate(0deg) !important; }
  920. 		#sort_by_name input																		{ margin:-2px 6px -2px 0; bottom:-2px; }
  921. 		#sort_by_ext																			{ grid-column: span 2; }
  922. 		.has_media #sort_by_ext																	{ grid-column: span 1; }
  923. 		.has_media #sort_by_default																{ text-align:center; }
  924. 		#sort_by_default.iframe, .iframe #sort_by_size, .iframe #sort_by_date					{ text-align:right; }
  925. 		.has_media #sort_by_duration, .has_playlist #sort_by_duration, #content_body.has_media #sorting_row_2 #sort_by_duration	{ display:unset; }
  926. 		#content_body #sorting_row_1 #sort_by_duration, #top_body #sorting_row_2 #sort_by_duration								{ display:none; }
  927. 			/* TEXT EDITOR ITEM */
  928. 		body:not(.show_details_false) #show_texteditor, body.has_texteditor #show_texteditor	{ display:flex; }
  929. 		#show_texteditor a																		{ padding-left:10px; }
  930. 	`;
  931. 	const dir_nav_styles = `	/* for both sidebar and content dirlists */
  932. 		#dir_nav							 													{ overflow-y:hidden; flex-basis:100%; }
  933. 		#dir_nav_inner																			{ overflow:auto; margin-bottom:-1px; }
  934. 		#dir_nav ol																				{ -webkit-margin-before:0em !important; -webkit-margin-after:0em !important; -webkit-padding-start:0em; }
  935. 		#directory_list																			{ counter-reset:item; transition:opacity .125s; }
  936. 		#directory_list:empty																	{ border-bottom:0; padding:100%; }
  937. 		.dirlist_item_input,     .dirlist_item_details,     .dirlist_item_details span,     .dirlist_item_media_duration,     .details.ext,     .dirlist_item.error::before,    .dirlist_item_name_a::before,
  938. 		body.show_invisibles_false:not(.has_menu_stats) .dirlist_item.invisible.ignored,	body.show_invisibles_false:not(.show_ignored_false):not(.has_menu_stats) .dirlist_item.invisible:not(.ignored),
  939. 		body.show_invisibles_false.show_ignored_items_false:not(.has_menu_stats) .dirlist_item.ignored,		body.show_invisibles_false.show_ignored_items_false:not(.has_menu_stats) .dirlist_item.invisible,
  940. 		body.show_ignored_items_false:not(.show_invisibles_false):not(.has_menu_stats) .dirlist_item.ignored:not(.invisible)														{ display:none; }
  941. 		.dirlist_item											{ margin-inline-start:0; display:grid; grid-gap:0; }
  942. 		.top_item												{ grid-template-columns:minmax(8rem,auto) minmax(6em,1fr) minmax(auto,6em); }
  943. 							.dirlist_item_name					{ grid-row:1; display:flex; -webkit-padding-start:0; -moz-padding-start:0; word-break:break-word; }
  944. 		.top_item			.dirlist_item_name					{ grid-column:1 / span 3; padding:6px 12px 6px 0; }
  945. 							.dirlist_item_name::before			{ counter-increment:item; content:counter(item); min-width:36px; height:14px; max-height:14px; min-height:14px; text-align:right; padding:0 3px 0 0; text-indent:6px; }
  946. 							.dirlist_item_input					{ margin:1px 6px 0 0; max-height:13px; }
  947. 							.dirlist_item .desc.dirlist_item_details					{ padding:0 6px 4px 40px; grid-column:1 / span 3; text-align:left; white-space:unset; }
  948. 		.has_icon_before::before, .has_icon_before_before		{ content:""; display:inline-block; background-position:center; background-repeat:no-repeat; background-size:14px,0px; }
  949. 		.has_icon_before::before, .has_icon_before_before, .show_large_image_thumbnails_false .dirlist_item.image .has_icon_before_before, .show_image_thumbnails_false .dirlist_item.image .has_icon_before_before
  950. 																{ width:14px; height:14px; max-width:20px; max-height:14px; min-width:14px; min-height:14px; margin:0 6px 0 6px; }
  951. 		.dirlist_item.image .has_icon_before_before				{ width:56px; height:56px; max-width:56px; max-height:56px; min-width:56px; min-height:56px; margin:0 6px; background-position:top; background-size:contain,0px; }
  952. 		.ignored:not(.selected) .has_icon_before::before, .ignored:not(.selected) .has_icon_before_before, .focus_content .has_icon_before_before, .has_quicklook #dir_wrapper	{ filter:grayscale(100%); }
  953. 		.focus_content li:hover .has_icon_before_before, .focus_content li:is(.selected,.hovered) .has_icon_before_before	{ filter:grayscale(0%); }
  954. 			/* MEDIA ITEMS */
  955. 		.top_item.media 	.dirlist_item_name							{ grid-column:1 / span 2; padding-right:0; }
  956. 		.top_item.media		.dirlist_item_media_duration				{ grid-column:3; padding:6px 12px 6px 0; }
  957. 		.dirlist_item.media	.dirlist_item_media_duration				{ grid-row:1; }
  958. 		.iframe_item.media	.dirlist_item_media_duration				{ grid-column:2; }
  959. 		.media:not(.local)	.dirlist_item_media_duration				{ display:unset; }
  960. 		.dirlist_item.media	.dirlist_item_media_duration:empty			{ background-image:${ get_SVG_UI_Icon('spinner') } !important; background-position:top 3px right 10px; background-repeat:no-repeat; background-size:20px; }
  961. 		.theme_dark	.dirlist_item_media_duration:empty					{ filter:invert(1); }
  962. 			/* SORTING BORDERS */
  963. 		.sort_by_default:not(.show_invisibles_false) .dir.invisible + .dir:not(.invisible), .sort_by_default:not(.show_invisibles_false) .dir:not(.invisible) + .dir.invisible			{ border-top:solid 1px hsl(0,0%,var(--border_lum)); }
  964. 			/* ITEM DETAILS */
  965. 							.dirlist_item_details						{ text-align:right; white-space:nowrap; }
  966. 		.top_item			.dirlist_item_details						{ padding:0 12px 4px 0; }
  967. 							.dirlist_item_details.size					{ padding-left:12px; }
  968. 							.dirlist_item_details.date					{ padding-bottom:0; height:1em; max-height:1em; overflow-wrap:break-word; }
  969. 							.dirlist_item_details.kind::first-letter	{ text-transform:uppercase; }
  970. 		#content_body .iframe_item										{ grid-template-columns: minmax(20em,100%) minmax(4em,6em) minmax(6em,8em) minmax(6em,14em) minmax(6em,8em); }
  971. 		#content_body .iframe_item.non_media .dirlist_item_name			{ grid-column:1 / span 2; }
  972. 		#content_body .iframe_item .dirlist_item_details				{ grid-row:1; height:1ex; }
  973. 		#content_body .iframe_item .desc.dirlist_item_details			{ grid-row:2; grid-column:1 / span 6; height:auto; padding:0 6px 4px 40px; }
  974. 		#content_body .iframe_item .dirlist_item_name_a, #content_body .iframe_item > span		{ padding:5px 16px 5px 0; }
  975.  
  976.  
  977. 		body:not(.show_numbers_false) .dirlist_item_name_a::before						{ display:initial; }
  978. 		body:not(.show_details_false) .dirlist_item_details, .media .dirlist_item_input	{ display:unset; }
  979. 		.disabled, .ignore_ignored_items li.ignored, .has_filelist [id$="sort_by_size"], .has_playlist [id$="sort_by_size"], .has_filelist [id$="sort_by_date"], .has_playlist [id$="sort_by_date"]
  980. 																		{ cursor:not-allowed; opacity:0.75; }
  981. 		.dirlist_item.error 											{ display:block; padding:6px 8px; }
  982. 		.dirlist_item.ignored.local .dirlist_item_name_a::after			{ content:"\\00a0[local file]"; display:contents; font-style:italic; }
  983. 		.is_error #is_error												{ display:block !important; grid:none !important; grid-template-columns:none !important; }
  984. 		.is_error #is_error_items										{ display:block; }
  985.  
  986. 	`;
  987. 	const iframe_dir_styles = `${ global_styles }
  988. 		#content_body																{ overflow-x:auto; font-size:${ (parseFloat(UI_Prefs_Non_Bool.ui_font_size) * 0.875) + UI_Prefs_Non_Bool.ui_font_size.replace(/\d*/,'') }; }
  989. 		.theme_dark .sorting span::before, .theme_dark .sorting span::after 		{ filter:invert(1); }
  990. 		#content_body:not(.show_details_false) #show::before						{ content:"Hide "; }
  991. 		#content_body.show_details_false .iframe_item 								{ grid-template-columns:auto; }
  992. 		#content_body.show_details_false .media .dirlist_item_media_duration		{ display:none; }
  993. 		#content_body #content_pane,#content_body .content_el						{ display:none; }
  994. 		#content_body.has_quicklook #dir_nav			{ opacity:0.8; }
  995. 		#content_body.has_quicklook #content_pane		{ display:flex; padding:2em; position:absolute; z-index:1; left:0; right:0; top:0; bottom:0; justify-content:center; }
  996. 		#content_body.has_quicklook #content_header		{ padding: 0; background-color:hsl(0,0%,var(--percent_85)); border-radius: 3px 3px 0 0; border:solid 1px hsl(0,0%,var(--border_lum)); border-bottom:0; }
  997. 		#content_body.has_quicklook #content_title		{ padding:4px 6px 0; }
  998. 		#content_body.has_quicklook #content_title_container						{ border-bottom:0; }
  999. 		#content_body.has_quicklook #content_container								{ padding:6px; background-color:hsl(0,0%,var(--percent_85)); box-shadow:0 0 12px #111; border-radius: 0 0 3px 3px; border:solid 1px hsl(0,0%,var(--border_lum)); border-top:0; contain:unset; flex-basis:unset; }
  1000. 		#content_body.has_quicklook .content_el																								{ width:100%; }
  1001. 		#content_body.has_quicklook .content_el.has_content																					{ border:solid 1px hsl(0,0%,var(--border_lum)); }
  1002. 		#content_body.has_quicklook .content_el.has_content,#content_body.has_quicklook .content_el:has(.has_content)						{ display:flex; z-index:1; }
  1003. 		#content_body.has_quicklook #content_container:has(#content_font.has_content, #content_pdf.has_content,#content_iframe.has_content),#content_body.has_quicklook #content_pane[data-content="has_ignored"] #content_container
  1004. 																																			{ height:50%; flex-basis:unset; }
  1005. 		#content_body.has_quicklook #content_container:has(#content_image.has_content)														{ display:table; flex-basis:unset; }
  1006. 		#content_body.has_quicklook #content_video.has_content																				{ position:static; }
  1007. 		#content_body.has_quicklook div[id^="title_buttons"], #content_body.has_quicklook #content_pane.has_audio :is(#content_title_container,#content_container), #content_body.has_quicklook #content_pane[data-content="has_ignored"] #content_iframe, #content_body.has_quicklook #content_pane[data-content="has_pdf"] #content_pdf
  1008. 																																			{ display:none; }
  1009. 		#content_body.has_quicklook #content_pane:not([data-content="has_ignored"]) #content_font.has_content								{ display:grid; }
  1010. 		#content_body.has_quicklook #content_pane[class*="has_font_specimen"] #font_specimen_viewer											{ display:flex; }
  1011. 		#content_body.has_quicklook #content_image_container, #content_body.has_quicklook #content_iframe									{ max-height:88vh; }
  1012. 		#content_header, #content_body.has_quicklook #content_image_container, #content_body.has_quicklook #content_container:has(#content_video.has_content)	{ padding:0; }
  1013. 		#content_pane[data-content="has_pdf"] #content_container					{ background-image:${ get_SVG_UI_File_Icon('file_icon_ignored') }; background-size:28px; }
  1014. 	`;
  1015. 	const dir_footer_styles = `	/* for both sidebar and content_iframe */
  1016. 		.has_menu_stats #stats_summary, .stats_kind span.file, .stats_kind span.media, #top_body.no_hover #dir_footer_utilities				{ display:none; }
  1017. 		#dir_footer											{ user-select:none; -webkit-user-select:none; }
  1018. 		#stats_container									{ max-height:33vh; }
  1019. 		.theme_light #dir_footer_utilities:hover ul, .theme_light #dir_footer:hover, .theme_light #stats_details_summary				{ box-shadow:0px -4px 4px 0px rgba(128,128,128,0.6); }
  1020. 		.theme_dark #dir_footer_utilities:hover ul,  .theme_dark #dir_footer:hover,  .theme_dark #stats_details_summary				{ box-shadow:0px -4px 4px 0px rgba(32,32,32,0.6); }
  1021. 		#stats_details_summary_dirs  .stats_kind::before	{ background-image:${ get_SVG_UI_File_Icon("file_icon_dir") }; }
  1022. 		#stats_details_summary_files .stats_kind::before	{ background-image:${ get_SVG_UI_File_Icon("file_icon_file_default") }; }
  1023. 		#stats_details_summary, #stats_details_items_container	{ overflow-y:scroll; }
  1024. 		#stats_summary_totals, .has_media #total_duration 	{ display:flex; text-align:left; white-space:normal; padding-right:1em; }
  1025. 		#stats a 											{ padding:3px 12px 3px 0; }
  1026. 		#stats a::before									{ content:attr(data-count); width:36px; text-align:right; }
  1027. 		.stats_kind span									{ margin-right:0.5em; white-space:pre; display:flex; }
  1028. 		.stats_kind > span::first-letter 					{ text-transform:uppercase; }
  1029. 		#stats_details_items li.audio a span span::after	{ content:attr(data-audio_duration); white-space:pre; }
  1030. 		#stats_details_items li.video a span span::after	{ content:attr(data-video_duration); white-space:pre; }
  1031. 		#total_duration::after								{ content:attr(data-time_remaining); white-space:pre; }
  1032. 		.has_media #total_duration::before					{ content:"Total Time:\\00a0"; }
  1033. 		.stats_list_item_name_a								{ -webkit-padding-start:0; padding:1px 0; }		.stats_list_item span::first-letter { text-transform:uppercase; }
  1034. 		#stats_summary, #stats_details_summary				{ margin-block-start:0; margin-block-end:0; }
  1035. 		#stats a.dirlist_item_name_a:before 				{ display:inline-block; }
  1036. 		#stats_details_items										{ max-height:25vh; }
  1037. 		#stats_container, .has_menu_stats #stats_details_summary, .has_menu_stats #stats_details_items		{ display:block; }
  1038. 		#dir_footer_utilities									{ right:-1px; bottom:-1px; }
  1039. 		#dir_footer_utilities ul								{ bottom:0; right:0; white-space:nowrap; box-shadow:-0px -3px 6px -3px #333; }
  1040. 		#dir_footer_utilities:hover ul							{ display:block; }
  1041. 		.has_menu_stats #dir_footer_utilities					{ display:none; }
  1042. 	`;
  1043. 	const directory_utilities_styles = `
  1044. 		#show_sidebar { top:0; right:0; height:21px; opacity:0.6; }						#show_sidebar:hover { opacity:1; }
  1045. 		body.show_sidebar_false #handle { display:none; }								body.show_sidebar_false #show_sidebar { left:2px; transform:rotate(180deg); }
  1046. 		body.show_sidebar_false #dir_wrapper { width:0 !important; min-width:0; position:absolute; top:2px; left:-1px; }
  1047. 		body.show_sidebar_false #dir_header { z-index:unset; display:none; }			body.show_sidebar_false #dir_nav { visibility:hidden; } 
  1048. 		body.show_sidebar_false #directory_list_outer { min-width:0; }					body.show_sidebar_false #content_pane { width:100% !important; }
  1049. 		body.show_sidebar_false #title_buttons_left { padding-left:24px; }				#handle { top:0; bottom:0; right:-4px; width:7px; cursor:col-resize; }
  1050. 		.has_overlay #handle { z-index:9999; }
  1051. 	`;
  1052. 	const sidebar_styles = `${ dir_header_styles }     ${ dir_nav_styles }     ${ dir_footer_styles }     ${ directory_utilities_styles }`;
  1053. 	/* CONTENT PANE STYLES */
  1054. 	const content_pane_header_styles = `
  1055. 			/***** CONTENT TITLE *****/
  1056. 		#content_title_container											{ overflow-x:scroll; }
  1057. 		#content_title														{ min-width:16em; min-height:18px; padding:4px 8px; word-break:break-word; }
  1058. 		#content_title span::before											{ font-weight:normal; margin-bottom:-3px; }
  1059. 		#content_pane.has_font_specimen																		#content_title div::before		{ content:"Font"; }
  1060. 		#content_pane.has_font_file #content_title div::before, 		#content_pane.has_font_file_glyph	#content_title div::before		{ content:"Glyphs from font"; }
  1061. 		.has_directory_source									 											#content_title div::before		{ content:"Source of" !important; }
  1062. 		.has_directory_source 											#content_title span::before	{ background-image:${ get_SVG_UI_File_Icon("file_icon_dir_default") }; height:14px !important; background-size:contain; }
  1063. 		#content_pane[data-content="has_grid"] 																#content_title div::before		{ content:"Fonts and Images from"; }
  1064. 		#content_pane[data-content="has_grid"].has_font_grid 												#content_title div::before		{ content:"Fonts from"; }
  1065. 		#content_pane[data-content="has_grid"].has_image_grid 												#content_title div::before		{ content:"Images from"; }
  1066. 		#content_pane[data-content="has_ignored"] 															#content_title div::before		{ content:"Ignored content"; }
  1067. 		#content_pane[data-content="has_dir"] 																#content_title div::before 		{ content:"Index of"; }
  1068. 		body.has_texteditor .texteditor_view_raw.texteditor_split_view_false								#content_title div::after		{ content:" (Source Text)"; }
  1069. 		body.has_texteditor .texteditor_view_preview.texteditor_split_view_false							#content_title div::after		{ content:" (Text Preview)"; }
  1070. 		body.has_texteditor .texteditor_view_html.texteditor_split_view_false 								#content_title div::after		{ content:" (HTML Preview)"; }
  1071. 		body.has_texteditor  																				#content_title div::before		{ content:"Text Editor" !important ; font-weight:bold; }
  1072. 		body.texteditor_edited.has_texteditor																#content_title div::before		{ content:"Text Editor (edited)" !important; font-weight:bold; }
  1073. 		body.has_texteditor 																				#content_title span				{ display:none; }
  1074. 		body.has_texteditor 																				#content_title span::before		{ background-image:${ get_SVG_UI_File_Icon("file_icon_markdown") }; }
  1075. 		#content_pane[data-loaded="unloaded"]																#content_title					{ display:flex; justify-content:center; align-items:center; }
  1076. 		#content_pane[data-loaded="unloaded"] 																#content_title div::before		{ content:"Loading..." }
  1077. 		#content_pane[data-loaded="unloaded"] 																#content_title span				{ display:none; }
  1078. 		#content_pane[data-content="has_grid"] 																#content_title span::before		{ background-image:${ get_SVG_UI_File_Icon("file_icon_dir") }; height:14px !important;}
  1079. 		#content_pane[data-content="has_image"]																#content_title span::after		{ content:attr(data-after); font-weight:normal; white-space:pre; }
  1080. 		#content_pane.content_error #content_title span::before, #content_pane.content_error  #content_container, #content_pane.has_audio_error #content_audio_title span::before	{ background-image:${ get_SVG_UI_Icon("error") }; }
  1081. 		body.is_error:not(.has_directory_source) #content_title span::before, #content_pane.content_error #content_title div::before	{ content:"ERROR:"; white-space:pre; display:inline; }
  1082. 			/* CONTENT TITLE BUTTONS LEFT */
  1083. 		#reload_btn { width:52px; }				#reload_btn::before { content:"Reload"; }
  1084. 		#prev_next_btns { margin-left:4px; }    #prev_next_btns span { width:2em; height:16px; }    #prev_next_btns span:active { background-color:#0E4399; }    #prev_next_btns:focus { background-color:white; }
  1085. 		#prev_next_btns svg { width:12px; }
  1086. 			/* CONTENT TITLE BUTTONS RIGHT */
  1087. 		#scale { margin-right:4px; background-color:#FFF; }    #scale span { width:2em; }
  1088. 		#close_btn { width:52px; }    #close_btn::before { content:"Close"; }    body.has_texteditor #close_btn::before { content:"Hide"; }    #content_pane[data-content="has_null"] #close_btn { display:none !important; }
  1089. 		.split_btn::after			{ content:""; position:absolute; top:0; bottom:0; left:calc(50% - 1px); border-left:solid 1px #333; }      .split_btn span { display:inline-flex; }
  1090. 		#open_in_texteditor					{ margin-right:4px; }
  1091. 	`;
  1092. 	const content_pane_audio_styles = `
  1093. 			/* CONTENT AUDIO TITLE */
  1094. 		#content_audio_title span								{ padding:4px 6px 0; }
  1095. 		#content_audio_title span::before						{ content:""; padding-right:22px; height:14px !important; font-weight:normal; background-image:${ get_SVG_UI_File_Icon("file_icon_audio") }; background-position:center; background-position:right 4px center; background-repeat:no-repeat; }
  1096. 		#content_pane.has_audio #content_audio_title span::before, #content_pane[data-content="has_video"] #content_title div::before	{ content:"Playing:"; }
  1097. 		#content_pane.has_audio.has_audio_error #content_audio_title span::before														{ content:"ERROR:"; }
  1098. 		#content_pane.has_audio.has_audio_error #content_audio 		{ padding-top:0; }
  1099. 		#content_pane.has_audio.has_audio_error #audio_container 	{ display:none; }
  1100. 			/* CONTENT AUDIO PLAYER */
  1101. 		#content_audio 											{ justify-content:center; padding:2px 6px 6px; overflow-x:auto; }
  1102. 		#audio_container										{ height:32px; background-color:rgb(241, 243, 244); }
  1103. 		#prev_track, #next_track								{ width:2rem; }
  1104. 		#audio													{ height:32px; }
  1105. 		audio::-webkit-media-controls-enclosure 				{ border-radius:0; }
  1106. 		#close_audio											{ width:32px; }
  1107. 		#audio_options											{ margin-top:0; margin-right:calc(-6em - 8px); padding:0 4px; width:6em; justify-content:start; }
  1108. 		#loop_label input										{ margin:0px 4px 2px}
  1109. 		#shuffle_label input									{ margin:2px 4px 0px}
  1110. 		#shuffle_label::after									{ content:attr(data-shufflecount); }
  1111. 			/* CUE SHEET MENU */
  1112. 		.cuesheet_track_list_container 	{ background-image:${ get_SVG_UI_File_Icon("file_icon_playlist") }; background-repeat:no-repeat; background-size:18px; background-color:inherit; display:none; }
  1113. 		.cuesheet_track_list_container:hover > div		 		{ display:flex; flex-direction:column; margin-top:-1px; overflow:auto; }
  1114. 		#cuesheet_track_list_container_audio					{ width:32px; background-position:center; }		#cuesheet_track_list_container_video { width:24px; background-position:top left; }
  1115. 		#cuesheet_track_list_container_audio > div				{ padding-top:13px; }				#cuesheet_track_list_container_video > div { padding-top:10px; }
  1116. 		.cuesheet_track 										{ justify-content:space-between; grid-template-columns: 2rem minmax(6rem,1fr) minmax(6em,1fr) minmax(auto,6em); }
  1117. 		.cuesheet_track.selected .cue_track_id::before			{ content:""; width:16px; height:8px; display:flex; }
  1118. 		.cuesheet_track span									{ padding:4px 0 4px 8px; font-variant-numeric:tabular-nums; }
  1119. 		#cuesheet_title 										{ padding:4px 8px; font-variant-numeric:tabular-nums; text-align:center; }
  1120. 			/* CONTENT TITLE PLAYLIST ENTRY (#content_playlist_item and #content_audio_playlist_item) */
  1121. 		.playlist_entry_container								{ flex-direction:row; }
  1122. 		.playlist_entry_container textarea						{ resize:vertical; background-color:transparent; }
  1123. 		.theme_light .playlist_entry_container:has(textarea:focus)		{ box-shadow:inset 0px 0px 2px 2px var(--non_media_item_background); }
  1124. 		.theme_dark .playlist_entry_container:has(textarea:focus)		{ box-shadow:inset 0px 0px 4px 1px hsl(0,0%,var(--percent_95)); }
  1125. 		#content_pane.has_audio #audio_wrapper, .playlist_entry_container.has_content	{ display:flex; flex-direction:column; }
  1126. 		audio::-webkit-media-controls-panel						{ padding:0; }
  1127. 	`;
  1128. 	const content_pane_styles = `${ content_pane_header_styles } ${ content_pane_audio_styles }
  1129. 		#content_pane																				{ transform:scale(1); contain:strict; }
  1130. 		#content_container				{ align-items:center; justify-content:center; bottom:0; background-position:center; background-repeat:no-repeat; background-size:33.33%; contain:strict; flex-basis:100%; overflow:auto; }
  1131. 		.content_el																					{ width:100%; height:100%; margin:0; padding:0; overflow:auto; display:none; }
  1132. 		#content_pane[data-loaded="unloaded"] .content_el											{ display:none !important; }
  1133. 		#content_pane[data-loaded="unloaded"]:not([data-content="has_ignored"]) #loading_spinner	{ display:block; }
  1134. 			/* CONTENT DISPLAY */
  1135. 		#content_pane:not([data-content="has_ignored"]) #content_font.has_content, #content_pane[data-content="has_image"] #content_image_container, #content_pane[data-content="has_grid"] #content_grid
  1136. 																{ display:grid; }
  1137. 		#content_pane[data-content="has_grid"] .split_btn, #content_pane[data-content="has_image"] .split_btn, #content_pane[data-content="has_font"] .split_btn, #content_body:not(.text_editing_enable_false) #content_pane[data-content="has_htm"] #open_in_texteditor, #content_pane:not([data-content="has_ignored"]) .content_el:not(#content_font).has_content, body.has_texteditor #content_texteditor, #content_pane[class*="has_font_specimen"] #font_specimen_viewer, .has_font_specimen_glyph #font_specimen_glyph_viewer, #content_pane[class*="has_font_file"] #font_file_viewer, .has_font_file_glyph #font_file_glyph_viewer
  1138. 																{ display:flex; }
  1139. 			/* CONTENT GRID (div) */
  1140. 		#content_grid		{ font-size:1rem; grid-gap:0; grid-template-columns:repeat(auto-fill, minmax(${ ( UI_Prefs_Non_Bool.grid_image_size + 16) }px, auto)); grid-auto-rows:minmax(min-content, max-content); }
  1141. 		#content_pane.has_hidden_grid #content_grid				{ max-height:100%; overflow:hidden; visibility:hidden; }
  1142. 			/* FONT & IMAGE GRID ITEMS */
  1143. 		.image_grid_item					{ padding:6px; grid-column:auto; line-height:0; }
  1144. 		.image_grid_item img				{ width:auto; max-width:${ (UI_Prefs_Non_Bool.grid_image_size).toString() }px; max-height:${ (UI_Prefs_Non_Bool.grid_image_size) }px; position:relative; opacity:0.9; }
  1145. 		.image_grid_item img[src$=".svg"]	{ height:100%; }
  1146. 		.image_grid_item.selected    { box-shadow:inset 0px 0px 4px hsl(0,0%,var(--percent_60)); }    .font_grid_item.selected p { font-weight:bold; }    .font_grid_item.selected a { font-weight:unset; }
  1147. 		.image_grid_item.selected img, .font_grid_item.selected, .image_grid_item:hover, .font_grid_item:hover { opacity:1; }
  1148. 		.font_grid		{ font-size:4em !important; margin:0 0 20px; grid-gap:0; grid-template-columns:repeat(auto-fit, minmax(max(60px,1.33em), 1.5fr)); grid-auto-rows:minmax(max(60px,1.33em), max-content); line-height:unset !important; letter-spacing:unset !important; }
  1149. 		.font_grid_item						{ line-height:1; padding:8px 20px; grid-column:1 / -1; opacity:0.9; }
  1150. 		.font_grid_item_info				{ padding:0 0 6px 0; letter-spacing:0.1em; text-indent:0.1em; }
  1151. 		.font_grid_item h2					{ font-size:${ UI_Prefs_Non_Bool.grid_font_size * 4 }em; font-weight:normal; }
  1152. 		.image_grid_item + .font_grid_item	{ margin-top:-1px; border-top:solid 1px hsl(0,0%,var(--border_lum_inverted)); }
  1153. 			/* CONTENT FONT.content */
  1154. 		#content_font						{ font-size:${ UI_Prefs_Non_Bool.grid_font_size }em; overflow-wrap:break-word; align-content:start; flex-direction:column; }
  1155. 		#content_pane.has_font_specimen #content_container, .has_font_specimen_glyph #content_container, .has_font_specimen_glyph #font_specimen, .has_font_file_glyph #content_container 	{ overflow:hidden; }
  1156. 		#content_pane[data-content*="has_font"] #font_toolbar		{ display:grid; overflow-x:scroll; overflow-y:hidden; -webkit-user-select:none;-moz-user-select:none; user-select:none; }
  1157. 		#content_pane.has_font_specimen #font_specimen_variants		{ display:flex; }			#content_pane.has_font_specimen #font_specimen_adjustments li.display_none { display:unset; }
  1158. 		#content_pane.has_font_file_glyph	#content_font	{ background-color:hsl(0,0%,var(--percent_100)); }
  1159. 		#font_toolbar li					{ margin:2px; padding:0 4px; white-space:pre; }
  1160. 		#font_toolbar li.text				{ width:50%; font-size:var(--font_size_small); }
  1161. 		#font_variant_select				{ width:13em; }
  1162. 		#unicode_char_ranges_select			{ width:12em; }
  1163. 		#font_specimen_adjustments			{ font-size:0.75rem; padding-bottom:2px; }
  1164. 		#font_specimen_adjustments input	{ width:8em; }
  1165. 		#font_specimen_viewer				{ min-width:100%; flex-direction:column; }
  1166. 		#font_specimen_viewer .specimen		{ padding:20px; outline:none; color:inherit; font-weight:normal; }
  1167. 		#font_specimen_viewer .specimen:focus,    #font_specimen_viewer .specimen:focus-visible	{ box-shadow:inset 0 0 2px 2px hsl(212deg 50% 60%); border-radius:3px; outline:none !important; }
  1168. 		.specimen:focus, specimen:focus-visible													{ background-color: hsl(0,0%,var(--percent_100)); }
  1169. 		#font_specimen_grid:empty,    #font_specimen_glyph:empty,    #font_specimen_grid:empty + hr	{ display:none; }
  1170. 		.font_glyph_item					{ grid-column:auto; display:flex; justify-content:center; position:relative; cursor:pointer; -webkit-text-stroke:inherit !important; letter-spacing:initial; line-height:initial; }
  1171. 		.font_glyph_item div				{ color:inherit; }
  1172. 		.font_glyph_item::before,    .font_glyph_item::after,    #font_specimen_viewer::before,    #font_specimen_viewer::after		 					{ display:inline-block; position:absolute; font-size:0.75rem; top:0; font-family:${UI_Prefs_Non_Bool.ui_font}; opacity:0.75; font-feature-settings:normal; font-variant:normal; line-height:1.2; letter-spacing:normal; -webkit-text-stroke:0 !important; }
  1173. 		.font_glyph_item::before,    #font_specimen_viewer::before		 																				{ content:attr(data-unicode_dec); left:2px; }
  1174. 		.font_glyph_item::after,     #font_specimen_viewer::after																						{ content:attr(data-unicode_hex); right:2px; }
  1175. 		.has_font_specimen_glyph #font_specimen_viewer::before,    .has_font_specimen_glyph #font_specimen_viewer::after,    .has_font_file_glyph #font_file_glyph_viewer::before,    .has_font_file_glyph #font_file_glyph_viewer::after				{ display:inline-block; padding:4px 6px; font-size:0.875rem; position:fixed; white-space:pre; opacity:1; z-index:2; }
  1176. 		#font_specimen_1 { font-size:4em;}		#specimen_2 { font-size:8em; }		#specimen_3 { font-size:6em; }		#specimen_2H4 { font-size:1.618em; }		#specimen_3H3 { font-size:2em; }
  1177. 		.lorem								{ font-size:1em; column-gap:1.5em; overflow-wrap:normal; }
  1178. 		#lorem::first-line					{ letter-spacing:0.1em; text-indent:0.1em; font-size:${ UI_Prefs_Non_Bool.grid_font_size * 1.33 }em; font-variant:small-caps; }
  1179. 		#lorem_2							{ padding:12px 0 0; columns:2; }
  1180. 		#lorem_3							{ padding:12px 0 0; columns:3; }
  1181. 					/* FONT GLYPHS */
  1182. 		#font_specimen_viewer, #font_file_viewer				{ line-height:1.5; background-color:inherit; }
  1183. 		.glyph_container:hover, .glyph_container.selected		{ z-index:1; }
  1184. 		#font_specimen_glyph, #font_specimen_glyph:not(:empty) + #font_specimen_glyph_overlay				{ display:flex; justify-content:center; font-size:64vw; overflow:visible; user-select:none; }
  1185. 		#font_file_viewer										{ font-family:unset; flex-direction:column; }
  1186. 		#content_pane.has_font_file_glyph #font_file_grid 		{ visibility:hidden; }
  1187. 		#content_pane.has_font_file_glyph #font_file_viewer		{ overflow:hidden; }
  1188. 		#font_file_grid											{ margin-bottom:21px; }
  1189. 		.font_glyph_item svg									{ width:1em; height:1em; display:block; overflow:visible; }
  1190. 		.font_glyph_item g, #font_file_glyph_viewer svg g		{ transform-origin:center; }
  1191. 		#font_file_glyph_viewer									{ background-color:#FFF; }
  1192.  		#font_file_glyph_viewer::before, #font_file_glyph_viewer::after		{ position:absolute; color:hsl(0,0%,var(--percent_65)); }
  1193.  		#font_file_glyph_viewer::before							{ content:attr(data-unicode_dec); }
  1194.  		#font_file_glyph_viewer::after							{ content:attr(data-unicode_hex); right:0; }
  1195.  		.has_font_file_glyph #save_svg							{ display:initial; margin-right:4px; }
  1196. 		#save_svg_hidden										{ float:left; visibility:hidden; }
  1197. 		#font_info												{ max-height:${ (window.innerHeight * 0.75) }px; left:-1px; right:0; bottom:-1px; overflow-y:auto; }
  1198. 		#font_info:hover										{ box-shadow:0px 4px 6px 3px #333; }
  1199. 			/* OTHER CONTENT ELEMENTS */
  1200. 		#content_image_container								{ padding:2rem 2.5rem; box-sizing:border-box; }
  1201. 		.has_zoom_image #content_image_container, .has_scaled_image #content_image_container { padding:0; }
  1202. 		#content_image											{ margin:auto; width:auto; max-width:100%; height:auto; max-height:100%; object-fit:contain; cursor:zoom-in; }
  1203. 		#content_image:focus-visible							{ outline:none; }
  1204. 		#content_pane.has_zoom_image #content_image				{ width:fit-content; height:fit-content; max-width:unset; max-height:unset; cursor:zoom-out; }
  1205. 		#content_video											{ background:transparent; height:auto; max-width:calc(100% - 4em); max-height:calc(100% - 4em); }
  1206. 		#content_iframe											{ background:white; }
  1207. 		#content_pane.has_emptycontent #content_iframe			{ background:unset; }
  1208. 	`;
  1209. 	const main_styles = `${ global_styles }
  1210. 		.image_grid_item img[src$=".svg"]	{ width:100%; }
  1211. 		.cuesheet_track_list_container:hover .cuesheet_track_list, #content_grid a	{ display:block; }
  1212. 		button								{ background-color:hsl(0,0%,95%); border:solid 1px #333; border-radius:3px; height:18px; font-size:0.875em; font-family:${UI_Prefs_Non_Bool.ui_font} !important; cursor:pointer; }
  1213. 		button.focus, button:focus 			{ outline:none; border-radius:3px !important; border-style:solid !important; border-width:1px !important; border-color:#222 !important; }
  1214. 		textarea:focus, audio:focus 		{ outline:none; }
  1215. 		#content_title *:empty				{ display:none; }
  1216. 			/* VARIOUS CLASSES AND ELEMENTS */
  1217. 		/* combine with has_flyout_menu or add background color classes to elements: */
  1218.  
  1219. /*		.has_popout_menu									{ background-color:#C0C0C0; border:solid 1px #666; }
  1220. 		.has_popout_menu li																					{ background-color:#D0D0D0; }
  1221. 		.theme_dark #dir_wrapper .has_popout_menu															{ border:solid 1px #111; }
  1222. 		.theme_dark #dir_wrapper .has_popout_menu, .theme_dark #dir_wrapper .has_popout_menu li				{ background-color:#505050; }
  1223. */
  1224. 			/***** APPEND STYLES *****/
  1225. 		${ sidebar_styles }     ${ content_pane_styles }     ${ utilities_styles }
  1226. 	`;
  1227. 	const conditional_styles = `
  1228. 			/* PSEUDO-ELEMENTS */
  1229. 		#reload_btn.reset::before, #content_pane:is(.has_font_specimen,.has_font_specimen_glyph,.has_font_file,.has_font_file_glyph,.has_zoom_image,.has_scaled_image) #reload_btn::before			{ content:"Reset"; }
  1230. 		.texteditor_edited #show_texteditor span:after, .iframe_edited:not(.has_texteditor) #content_pane.has_iframe #content_title div::after														{ content:" (edited)"; }
  1231. 		.theme_light #menu_theme span::before														{ content:"Light "; }
  1232. 		.theme_dark #menu_theme span::before														{ content:"Dark "; }
  1233. 		body:not(.show_details_false) #show::before													{ content:"Hide "; }
  1234. 		body.text_editing_enable_false #disable::after												{ content:"Disabled"; }
  1235. 		#disable::after																				{ content:"Enabled"; }
  1236. 		.is_error #dir_header_utilities																{ border-bottom:0; }
  1237. 		#is_error																					{ display:block !important; grid:none !important; grid-template-columns:none !important; }
  1238. 		.theme_dark #is_error_items, .theme_dark #dir_menu_main li > span::before, .theme_dark #sorting span::before, .theme_dark #sorting span::after, .theme_light #dir_menu_main li.selected > span::before	{ filter:invert(1); }
  1239. 			/* CONDITIONAL DISPLAY */
  1240. 		body:not(.alternate_background_false).is_error #alternate_background, .is_error #dir_header_utilities > div:not(:first-of-type), .is_non_local #show_invisibles_container					{ display:none; }
  1241. 		.has_media #play_toggle, .theme_dark #theme_dark, .theme_light #theme_light, #content_pane[class^="has_"] #close_btn, #content_pane[data-content="has_texteditor"] #close_btn				{ display:unset; }
  1242. 		.has_playlist #stats_summary_playlist_files, .has_filelist #stats_summary_playlist_files																									{ display:table-row; }
  1243. 		.has_menu #dir_menu_main, .has_menu_parents #parents_links, body:not(.no_hover) #dir_menus .has_submenu:hover .submenu, #dir_menu_main .has_submenu.hovered .submenu, #dir_footer li, .has_warning #overlay_container, .cuesheet_track_list_container.has_cue_sheet, .has_playlist #close_playlist_container, .has_filelist #close_playlist_container																		{ display:block; }
  1244. 		.has_menu_stats .dirlist_item.invisible, .has_menu_stats .dirlist_item.ignored, .has_menu_stats .dirlist_item.ignored.hovered, body:not(.show_ignored_items_false).has_menu_stats .dirlist_item.ignored, body:not(.show_ignored_items) .dirlist_item.ignored:not(.invisible)																																	{ display:grid; }
  1245. 		#content_pane[data-content="has_texteditor"] .content_el.has_content, #content_pane[data-content="has_texteditor"] #content_grid, #content_pane[data-content="has_grid"] #content_texteditor, #content_pane[data-content="has_grid"] .content_el.has_content																																		{ display:none !important; }
  1246. 	`;
  1247. 	const texteditor_styles = `
  1248. 		html, body, #content_body							{ margin:0; padding:0; height:100%; overflow:hidden; position:relative; font-family:${ UI_Prefs_Non_Bool.ui_font }; font-size:${ UI_Prefs_Non_Bool.ui_font_size }; }
  1249. 		button.focus, button:focus 							{ outline:none; border-radius:3px !important; border-style:solid !important; border-width:1px !important; border-color:#222 !important; }
  1250. 		.is_texteditor #content_texteditor, body.is_text #content_texteditor					{ display:flex; }
  1251. 			/* TOOLBAR */
  1252. 		#toolbar											{ overflow:visible; z-index:100; font-size:${ parseFloat(UI_Prefs_Non_Bool.ui_font_size) * 0.875 + UI_Prefs_Non_Bool.ui_font_size.replace(/\d*/,'') }; -webkit-user-select:none; -moz-user-select:none; user-select:none; }
  1253. 		#content_body.text_editing_enable_false #toolbar, .texteditor_split_view_false #texteditor_sync_scroll						{ display:none; }
  1254. 		.toolbar_icon										{ margin:0 4px; padding:4px; min-width:16px; height:16px; cursor:pointer; opacity:0.5; }
  1255. 		#texteditor_sync_scroll								{ opacity:1; height:24px; padding:0 8px; flex-grow:unset; }
  1256. 		#texteditor_sync_scroll input						{ margin:0 4px 0 0; z-index:-1; }
  1257. 		#save_btn ul										{ top:-3px; right:-4px; }
  1258. 		#save_html, #save_text								{ grid-column:1; }
  1259. 		#save_btn_icon										{ grid-column:2; grid-row:span 2; width:32px; }
  1260. 		#save_btn_icon svg									{ margin:3px; }
  1261. 		.texteditor_edited #save_btn svg					{ color:red !important; }
  1262. 		#toolbar li:hover, .texteditor_view_raw #toggle_texteditor_view_raw, body:not(.texteditor_split_view_false) #toggle_texteditor_view_raw, body:not(.texteditor_split_view_false):not(.texteditor_view_html) #toggle_texteditor_view_preview, .texteditor_view_preview #toggle_texteditor_view_preview, .texteditor_view_html #toggle_texteditor_view_html, body:not(.texteditor_split_view_false) #toggle_texteditor_split_view							{ opacity:1; }
  1263. 			/* TEXT CONTENT CONTAINERS */
  1264. 		.texteditor_pane														{ padding:1em; overflow-y:scroll; box-sizing:border-box; background:transparent; font-size:${ parseFloat(UI_Prefs_Non_Bool.ui_font_size) + UI_Prefs_Non_Bool.ui_font_size.replace(/\d*/,'') }; }
  1265. 		body:not(.text_editing_enable_false) .texteditor_pane, body:not(.texteditor_split_view_false) .texteditor_pane		{ width:50%; }
  1266. 		body:is(.text_editing_enable_false,.texteditor_split_view_false) .texteditor_pane 									{ width:100% !important; }		
  1267. 		#text_container .texteditor_pane:focus									{ background-color:hsl(0,0%,var(--percent_90)); outline:none; box-shadow:inset 0px 0px 4px hsl(0,0%,var(--percent_95)); }
  1268. 		#text_container textarea											 	{ font-family:monospace; }
  1269. 			/* EDITOR PANES */
  1270. 		.texteditor_view_raw #texteditor_txt_pane, .texteditor_view_preview #texteditor_preview_pane,		.texteditor_view_html #texteditor_html_pane,		.texteditor_view_html.texteditor_view_raw.texteditor_split_view_false #texteditor_txt_pane,		.texteditor_view_preview.texteditor_view_raw.texteditor_split_view_false	#texteditor_txt_pane,		.texteditor_view_html:not(.texteditor_split_view_false) 			  #texteditor_txt_pane,		.texteditor_view_preview:not(.texteditor_split_view_false) 					#texteditor_txt_pane,			#content_body.text_editing_enable_false #texteditor_preview_pane			{ display:block !important; }		
  1271. 		#content_body.text_editing_enable_false :is(#text_editing_handle,#texteditor_txt_pane,#texteditor_html_pane,#save_btn), 		.texteditor_split_view_false #text_editing_handle, 		.texteditor_split_view_false.texteditor_view_preview #texteditor_txt_pane,		.texteditor_split_view_false.texteditor_view_preview.texteditor_view_raw	#texteditor_preview_pane, 		.texteditor_split_view_false.texteditor_view_html #texteditor_txt_pane, 		.texteditor_split_view_false.texteditor_view_html.texteditor_view_raw #texteditor_html_pane,		.texteditor_split_view_false.texteditor_view_raw #texteditor_preview_pane		{ display:none !important; }
  1272. 			/* THEMES & COLORS */
  1273. 		.texteditor_theme_default #content_texteditor .background_grey_95, .background_grey_90:focus, #texteditor_preview_pane table th, #text_container
  1274. 																				{ background-color:hsl(0,0,var(--percent_95)); }
  1275. 		.theme_dark.texteditor_theme_light #content_texteditor .text_color_default, .theme_light.texteditor_theme_default #content_texteditor .text_color_default
  1276. 																				{ color:hsl(0,0%,var(--percent_05)); }
  1277. 		.theme_dark #content_texteditor .text_color_default, .texteditor_theme_dark #content_texteditor .text_color_default				{ color:#EEE; }
  1278. 			/* custom previewed text styles */
  1279. 		#texteditor_preview_pane												{ word-break:break-word; }
  1280. 		#texteditor_preview_pane pre	{ border:solid 1px #CCC; border-radius:3px; white-space:pre-wrap; word-break:break-word; font-size:${ parseFloat(UI_Prefs_Non_Bool.ui_font_size) + UI_Prefs_Non_Bool.ui_font_size.replace(/\d*/,'') }; }
  1281. 		#texteditor_preview_pane th, #texteditor_preview_pane td				{ vertical-align:top; }
  1282. 		#texteditor_preview_pane blockquote										{ margin-top:1em; margin-bottom:1em; color:#555; }
  1283. 		#texteditor_preview_pane blockquote + blockquote						{ margin-top:0; }
  1284. 		#texteditor_preview_pane img											{ max-width:100%; height:auto; }
  1285. 		.markdown_body input[type="checkbox"]									{ margin-top:0.375em; margin-right:6px; float:left; }
  1286. 		h1 .uplink,h2 .uplink,h3 .uplink,h4 .uplink,h5 .uplink,h6 .uplink		{ display:inline-block; font-size:0.875em; transition:opacity 0.25s; opacity:0; cursor:pointer; margin:0; padding:0; }
  1287. 		h1:hover .uplink,h2:hover .uplink,h3:hover .uplink,h4:hover .uplink,h5:hover .uplink,h6:hover .uplink		{ transition:opacity 0.25s; opacity:0.5; }
  1288. 		#texteditor_preview_pane table											{ font-size:inherit; }
  1289. 		.markdown_body table tr, .markdown_body .highlight pre, .markdown_body pre { background-color:transparent !important; }
  1290. 		.markdown_body::before, .markdown_body::after							{ display:none !important; background:transparent; }
  1291. 		#content_body.has_warning::after 										{ content:""; position:absolute; top:0; right:0; bottom:0; left:0; background:rgba(0,0,0,0.33); z-index:9998; }
  1292. 		#text_editing_handle													{ width:8px; top:0; bottom:0; left:calc(50% - 4px); cursor:col-resize; }
  1293. 		#text_editing_handle::before											{ content:""; width:1px; background:hsl(0,0%,var(--border_lum)); position:absolute; top:0; bottom:0; left:calc(50%); }
  1294. 		.texteditor_theme_dark #text_editing_handle::before, .theme_dark.texteditor_theme_default #text_editing_handle::before					{ background:#111; }
  1295. 	`;
  1296. 	// Gecko (Firefos) Styles:
  1297. 	const gecko_style_rules = `
  1298. 		.dir::before																	{ content:"" !important; display:none !important; }
  1299. 		.is_gecko button																{ padding:revert; }
  1300. 		.is_gecko #show_grid_btn .menu													{ top:-7px; left:-120px; }
  1301. 		.is_gecko thead																	{ font-size:100%; }
  1302. 		.is_gecko .dirlist_item.dir::before												{ position:absolute; }
  1303. 		.is_gecko .dirlist_item_name span												{ display:-webkit-box; width:auto; white-space:normal; }
  1304. 		.dirlist_item.dir td:not(:first-child), .dirlist_item.file td:not(:first-child)	{ width:unset !important; }
  1305. 		.is_gecko .dirlist_item td														{ min-width:calc(100% - 24px); }
  1306. 		.is_gecko .dir::before															{ content:"" !important; display:none !important; }
  1307. 		.is_gecko.use_default_icons:not(.is_converted_list) .dirlist_item.file .icon	{ padding-left:4px; background:none; }
  1308. 		.is_gecko.use_default_icons .dirlist_item.file .icon img						{ margin-right:6px; height:14px; }
  1309. 		.is_gecko #directory_list > tr > td:not(:first-of-type)							{ float:left }
  1310. 		.is_gecko #content_audio_title span												{ padding-top:6px;, padding-bottom:0; }
  1311. 		.is_gecko #audio,.is_gecko #audio_container 									{ background-color:rgba(26,26,26,1); }
  1312. 		.is_gecko #prev_track, .is_gecko #next_track, .is_gecko #close_audio			{ filter:invert(1); border:none !important; }
  1313. 		.is_gecko #content_pane.has_zoom_image #content_image_container					{ display:block !important; }
  1314. 	`;
  1315. 	const safari_style_rules = `
  1316. 		.is_safari button { background-color:#FFF; }
  1317. 		.is_safari.theme_dark #prev_track, .is_safari.theme_dark #next_track, .is_safari.theme_dark #close_audio	{ filter:invert(1); }
  1318. 	`;
  1319. 	const chrome_style_rules = `video::-webkit-media-controls-enclosure 					{ border-radius:0 !important; }`;
  1320. 	const html_style_rules = `a:focus, a:focus-visible { font-weight:bold; border-radius:1px; outline:currentcolor solid 1px; outline-offset:1px; display:inline-block; padding:0 2px; text-decoration:none; }`
  1321. 	//==============================//
  1322. 	function addStyles(user_agent) {																										// ===> ADD STYLES
  1323. 		let default_styles = `<style id="main_styles">${ main_styles }</style>     <style id="conditional_styles">${ conditional_styles }</style>     <style id="font_styles"></style>     <style id="font_grid_styles"></style>`;
  1324. 		switch(user_agent) {
  1325. 			case user_agent === 'is_gecko':		default_styles += `<style id="gecko_style_rules">${ gecko_style_rules }</style>`;	break;
  1326. 			case user_agent === 'is_safari':	default_styles += `<style id="safari_style_rules">${ safari_style_rules }</style>`;	break;
  1327. 			case user_agent === 'is_chrome':	default_styles += `<style id="chrome_style_rules">${ chrome_style_rules }</style>`;	break;
  1328. 		}
  1329. 		return default_styles 																														// return styles
  1330. 	}
  1331. 	// ***** END STYLES ***** //
  1332. 	//==============================//
  1333. 	// ***** INDEX PREP ***** //
  1334. 	// Try to determine index type from parent directory link container, with fallbacks for indexes that don't have parent directories, or for parent directory links that aren't siblings or ancestors of the index itself.
  1335. 	function getIndexType() {																											// ===> GET INDEX TYPE
  1336. 		let index_el = getEls('body > ul, body ul, body > pre, body > table:last-of-type, body div table');
  1337. 		if ( index_el.length > 1 ) { index_el = ( Array.from(index_el).filter( el => el?.nodeName?.toLowerCase() === 'table') || index_el.reverse()[0] ) } // some index pages have pre and table elements; list is usually table
  1338. 		index_el = index_el[0];
  1339. 		let node_name = ( index_el !== undefined ? index_el.nodeName.toLowerCase() : 'body' ); 														// "body" is likely to be an error page
  1340. 		let types = {'gecko':'gecko','ul':'list','pre':'pre','table':'table','th':'table','td':'table','div':'default','error':'error','body':'error','permission_denied':'permission_denied'}; // object array of types
  1341. 		return types[node_name];																													// return index type
  1342. 	}
  1343. 	function getIndexItems(agent) { let type = getIndexType(agent), items;																			// ===> GET INDEX ITEMS // get index type, define items
  1344. 		switch(type) {
  1345. 			case 'error':								items = document.getElementsByTagName('html')[0].outerHTML;							break; 	// error type
  1346. 			case 'pre':									items = getEl('body > pre').innerHTML;												break; 	// pre type
  1347. 			case 'list':								items = getEls('body > ul li, body > * > ul li');									break; 	// list type
  1348. 			case 'table': case 'td':																												// table types
  1349. 				switch(true) {
  1350. 					case elExists('table > tbody'): 	items = getEls('body table > tbody tr'); 											break;	// ordinary tables
  1351. 					case !elExists('table > tbody'):	items = getEls('body table tr'); 													break;	// tables without tbody element
  1352. 				}
  1353. 				break;
  1354. 			case 'gecko':								items = getEls('body > table > tbody > tr');										break;	// gecko type
  1355. 			case 'default': 							items = getEls('body > table > tbody tr');											break;	// default: how is this different from table type?
  1356. 		}
  1357. 		return [items,type];																														// return index items and index type
  1358. 	}
  1359. 	//==============================//
  1360. 	function prepPreType(items_str) {																										// ===> PREP PRE TYPE
  1361. 		let prepped_index = [], parser = new DOMParser(), items_HTML = parser.parseFromString(items_str, "text/html");					// convert items_str to DOM html
  1362. 		items_HTML.querySelectorAll('hr,img').forEach( el => el.remove() );																			// remove junk elements
  1363. 		items_HTML.querySelectorAll('a').forEach(																									// remove junk links (sorting and parent links) or define item_link
  1364. 			el => { if ( /^\?|^\./m.test(el.getAttribute('href')) || /^Parent$|^Parent Directory$|^\s*Up\s*$|^\s*Root\s*$/im.test(el.innerText) ) { el.remove(); } }
  1365. 		); 
  1366. 		items_str = items_HTML.querySelector('body').innerHTML; 																					// convert DOM html back to str
  1367. 		// remove header elements | link text nodes | links with empty text nodes (which are sometimes duplicated) | name, last modified, size, description)
  1368. 		items_str = items_str.replace(/\&lt;dir\&gt;/gm,'  ').replace(/<br>/gi,'\n').replace(/[ ]*<h\d>[^<]*<\/h\d>[ ]*/gmi,'').replace(/[ ]*(<a[^>]+?>)[^<]*(<\/a>)/g,'$1$2  ').replace(/(\w)<a /g,'$1  <a '); // clean string
  1369. 		const items = items_str.split('\n'); 																										// create array of item strings from items
  1370. 		for ( let i = items.length; i--; ) {
  1371. 			let prepped_item = [], link;
  1372. 			let cells = items[i].split(/\s{2,}/);
  1373. 			for ( let j = cells.length; j--; ) {
  1374. 				let cell = cells[j];
  1375. 				if ( cell.trim().length > 0 && cell.trim() !== '-' ) {
  1376. 					if ( !cell.startsWith('<a ') ) { prepped_item.push(cell); } else { link = cell.split('"')[1]; } 								// extract link
  1377. 				}
  1378. 			}
  1379. 			if ( link === undefined || ( /^\.\.$|^\.\.\/$|^\/$|^\?|\?sort=|\?path=\&/mi.test(link) ) ) { prepped_item = []; } else {  prepped_item.unshift(link); } // exclude some items (e.g., parent directory links)
  1380. 			if ( prepped_item.length > 0 ) { prepped_index.push(prepped_item); } 																	// add prepped item to index
  1381. 		}
  1382. 		return prepped_index;																														// return prepped index
  1383. 	}
  1384. 	function prepListType(items) {																											// ===> PREP LIST TYPE
  1385. 		let prepped_index = [];
  1386. 		for ( let i = items.length; i--; ) {
  1387. 			let item = items[i];
  1388. 			if ( item.innerHTML.indexOf('Parent Directory') === -1 ) {
  1389. 				let prepped_item = [], link = item.querySelector('a')?.href;
  1390. 				item.querySelector('a')?.remove();		Array.from(item.children).forEach( child => { if ( child.innerText === '' ) { child.remove(); } })		// remove link and empty child elements
  1391. 				let cells = item.innerHTML.split(' ');																											//	create array from remaining elements
  1392. 				for ( let cell of cells ) { prepped_item.push(cell); }
  1393. 				if ( link === undefined || ( /^\.\.$|^\.\.\/$|^\/$|^\?|\?sort=|\?path=\&/mi.test(link) ) ) { prepped_item = []; } else {  prepped_item.unshift(link); } // exclude some items (e.g., parent directory links)
  1394. 				if ( prepped_item.length > 0 ) { prepped_index.push(prepped_item); }
  1395. 			}
  1396. 		}
  1397. 		return prepped_index;																														// return prepped index
  1398. 	}
  1399. 	function prepGeckoType(items) {																											// ===> PREP GECKO TYPE
  1400. 		let prepped_index = [];
  1401. 		for ( let item of items ) {
  1402. 			let prepped_item = [], cellContents = '', cells = item.cells, link = item.innerHTML.split('href=\"')[1].split('\">')[0];
  1403. 			for ( let cell of cells ) {
  1404. 				cellContents = cell.innerText;
  1405. 				cellContents = ( cellContents !== undefined ? cellContents.trim() : '');
  1406. 				prepped_item.push(cellContents);
  1407. 			}
  1408. 			prepped_item[1] = prepped_item[1].replace(/\s*KB/,'000'); 																				// convert reported size in KB to total bytes
  1409. 			prepped_item[2] = prepped_item[2] + ' '+ prepped_item[3];
  1410. 			prepped_item = prepped_item.slice(1,-1);
  1411. 			if ( link === undefined || ( /^\.\.$|^\.\.\/$|^\/$|^\?|\?sort=|\?path=\&/mi.test(link) ) ) { prepped_item = []; } else {  prepped_item.unshift(link); } // exclude some items (e.g., parent directory links)
  1412. 			if ( prepped_item.length > 0 ) { prepped_index.push(prepped_item); }
  1413. 		}
  1414. 		return prepped_index;																														// return prepped index
  1415. 	}
  1416. 	function prepTableType(items) { //*** for local chrome indexes and server-generated table-type indexes								// ===> PREP TABLE TYPE
  1417. 		let prepped_index = [], prepped_item, item, cell, cell_text;
  1418. 		for ( item of items ) {
  1419. 			if ( item.querySelector('td a') !== null ) { let link; prepped_item = [];															// get legitimate items (i.e., those containing a link)
  1420. 				for ( cell of item.cells ) {																									// get text from remaining cells (date & size)
  1421. 					switch(true) {
  1422. 						case cell.querySelector('a') !== null && link === undefined: link = item.querySelector('a')?.getAttribute('href');		// get link; add to prepped_item; ignore if link already defined
  1423. 							if ( !/^\?|^\.\.\/$|^\|\"\/\".$/m.test(link) && !/^\s*parent directory\*$|^\*up\s*$/m.test(item.innerText.toLowerCase()) ) { prepped_item.unshift(link); }// else { prepped_item.unshift(''); }
  1424. 							break;
  1425. 						default:
  1426. 							cell_text = cell.innerText.trim().replace(/(^[ ]*-[ ]*$|[ ]*-[ ]*\&nbsp;[ ]*$)|\&nbsp;/m,'');						// prep cells and clean cell text
  1427. 							if ( !/<td\s*[^>]*>dir|directory|file<\/td>|>\w*\s*file<|>\w*\s*unknown</i.test(cell.outerHTML.toLowerCase()) && cell_text !== '' ) { prepped_item.push( cell_text ); } 	// exclude various cells
  1428. 					}
  1429. 				}
  1430. 				if ( prepped_item.length > 1 && prepped_item[0] !== '' ) { prepped_index.push(prepped_item); } 										// prepped_item.length > 2 in order to omit parent directory item
  1431. 			}
  1432. 		}
  1433. 		return prepped_index;																														// return prepped index
  1434. 	}
  1435. 	function prepErrorType(items) { return items; }																							// ===> PREP ERROR TYPE; receives and returns html string
  1436. 	function prepPlaylist(items) {																											// ===> PREP PLAYLIST items
  1437. 		let prepped_index = []; let prepped_item, link, duration, name, info; let items_arr, type;
  1438. 			items = items.replace(/\s*#EXTM3U.*\s*/g,'').replace(/^\*\n{2,}/gm,'\n').replace(/\.pdf\?.+?\n/g,'.pdf\n');//.replace(/\?/g,'%3F'); 		// remove header comment and multiple returns
  1439. 		switch(true) { 																																// determine playlist type;
  1440. 			case ( /#EXTINF:/i.test(items) ):	type = 'extm3u';	items_arr = items.split('#EXTINF:');									break;	// rows made by splitting at "#EXTIMG:" prefix
  1441. 			default:							type = 'm3u'; 		items_arr = items.split('\n');											break;	// rows are just naked links
  1442. 		}
  1443. 		items_arr.forEach( (item) => {
  1444. 			switch(true) { // get entry information: title, link, etc.
  1445. 				case type === 'extm3u':	item = item.trim().split('\n'); link = item[1]; info = item[0].split(','); duration = info.shift(); name = info.join(',');
  1446. 					if ( item[1] !== undefined ) { prepped_item = [link,duration,'',name]; }	break;
  1447. 				case type === 'm3u':	prepped_item = [item,'',''];																		break;	// m3u with urls only
  1448. 			}
  1449. 			if ( prepped_item !== undefined ) { prepped_index.push(prepped_item); }
  1450. 		});
  1451. 		return prepped_index;																														// return prepped index
  1452. 	}
  1453. 	function convertIndexItems(items,type) { let converted = [];																					// ===> CONVERT INDEX ITEMS by type; returns [prepped_index]		
  1454. 		switch(type) {
  1455. 			case 'gecko':	converted = prepGeckoType(items);		break;
  1456. 			case 'list':	converted = prepListType(items);		break;
  1457. 			case 'pre':		converted = prepPreType(items);			break;
  1458. 			case 'table':
  1459. 			case 'default': converted = prepTableType(items,type);	break;
  1460. 			case 'error':	converted = prepErrorType(items);		break;
  1461. 		}
  1462. 		return converted;
  1463. 	}
  1464. 	//==============================//
  1465. 	function buildNewIndex(id,prepped_index,sort,type,body_id) {																				// ===> BUILD NEW INDEX from prepped rows
  1466. 		let i, new_index_items = [], body_classes = new Set();
  1467. 		let index_html = '';
  1468. 		let new_item, item, item_info = [], item_link, item_name, item_sort_name, item_size_and_date, item_size, item_sort_size, item_date, item_sort_date, item_ext, item_description, item_sort_kind, item_classes;
  1469. 		let name_span, cell_link, cell_name, cell_size, cell_date, cell_kind, cell_ext, cell_time, prepped_index_length = prepped_index.length, item_disabled, item_input;
  1470. 		let stats, stats_classes = [], stats_kinds = [], stats_total_size = 0, media_count = 0;
  1471. 		let dir_list_parent_class = ( ( body_id === ( null || 'top_body') || type === 'playlist' ) ? 'top_item' : 'iframe_item' );					// body_id used to set dir list details style
  1472. 		let parent_id = ( getCurrentUIPref('parent_id') || '' ), connector = ( getCurrentUIPref('parent_id') ? '_' : '' ), level = ( Number(getCurrentUIPref('level')) || 0 ), level_style = ( level === 0 ? '' : `style="padding-left:${ Number(level) * 22 }px;"` ); 																								// ensure unique ids (with parent_id) and set indents for subdirectory items
  1473. 		if ( prepped_index_length > 5000 ) { if ( confirm(`This directory contains ${prepped_index_length} items; it may take a long time to process and could cause your browser to crash. Are you sure you want to open it?`) === false ) { return } }
  1474. 		switch(type) {																																// add body classes according to index type
  1475. 			case 'error':				body_classes.add('is_error');			break;
  1476. 			case 'pre':					body_classes.add('is_converted_pre');	break;
  1477. 			case 'list':				body_classes.add('is_converted_list');	break;
  1478. 			case 'table': case 'td':	body_classes.add('is_converted_table');	break;
  1479. 			case 'default': 			body_classes.add('is_default');			break;
  1480. 		}
  1481. 		// create and format directory item
  1482. 		for ( i = 0; i < prepped_index_length; i++ ) {
  1483. 			item 				= prepped_index[i];
  1484. 			item_info			= getLinkInfo(item[0]); 																							// returns [link,name,ext,kind,item_classes,body_classes];
  1485. 			item_link			= item_info[0];
  1486. 			item_name			= item_info[1] || item[3];																							// prep display name, with word breaks added after unbreakable chars
  1487. 			item_sort_name		= item_name.toLocaleLowerCase();
  1488. 			item_size_and_date 	= getItemSizeAndDate(item);
  1489. 			item_size			= item_size_and_date[0];
  1490. 			item_sort_size		= item_size_and_date[1];
  1491. 			item_date			= item_size_and_date[2];
  1492. 			item_sort_date		= item_size_and_date[3];
  1493. 			item_ext			= item_info[2];
  1494. 			item_sort_kind		= item_info[3];
  1495. 			item_classes		= item_info[4] +" "+ dir_list_parent_class;
  1496. 			item_disabled		= ( /local/.test(item_classes) ? ' disabled="disabled"' : '' );														// disable media if local file on non_local page or vice versa
  1497. 			item_input			= ( /audio|video/.test(item_sort_kind) && /top/.test(body_id) || type === 'playlist' ? `<input class="dirlist_item_input" type="checkbox" tabindex="-1" checked="true" ${item_disabled} autocomplete="off" />` : '' );
  1498. 			// Assemble item elements
  1499. 			name_span			= `<span class="icon has_icon_before_before"></span><span class="name_span display_flex">${ item_input }<span>${ item_name }</span></span>`;
  1500. 			cell_link			= `<a href="${ item_link }" class="icon dirlist_item_name name dirlist_item_name_a position_relative">${ name_span }</a>`;
  1501. 			cell_name			= `${ cell_link }`;
  1502. 			cell_time		 	= `<span class="dirlist_item_media_duration align_right" data-duration=""></span>`;
  1503. 			cell_size			= `<span class="dirlist_item_details size details" data-size="${ item_sort_size }">${ item_size }</span>`;
  1504. 			cell_date			= `<span class="dirlist_item_details date details overflow_hidden" data-date="${ item_sort_date }">${ item_date }</span>`;
  1505. 			cell_kind			= `<span class="dirlist_item_details kind details" data-kind="${ item_sort_kind }">${ item_sort_kind }</span>`;
  1506. 			cell_ext			= `<span class="ext details" data-ext="${ item_ext }"></span>`;
  1507. 			item_description	= ( item[3] !== undefined ? `<span class="desc dirlist_item_details"><i>Description</i>: ${ item[3] } </span>` : '' );	// some servers provide a description of the item
  1508. 			// Assemble item
  1509. 			new_item			= `<li id="${ parent_id }${ connector }rowid-${ (prepped_index.length - i) }" class="dirlist_item ${ item_classes }" data-name="${ item_sort_name.split("/")[0] }" data-kind="${ item_sort_kind }" data-ext="${ item_ext }" data-level="${ level }" ${ level_style }>${ cell_name } ${ cell_time } ${ cell_size } ${ cell_date } ${ cell_kind } ${ cell_ext } ${ item_description }</li>\n`;
  1510. 			if ( /audio|video/.test(item_sort_kind) ) {	media_count += 1;																				// if media item...
  1511. 				let media_kind = item_sort_kind, media_item_id = parent_id + connector +'rowid-'+ ( prepped_index.length - i), is_subdir = ( /subdirectory/.test(window.location.search) ? true : false );
  1512. 				if ( media_count < 1000 ) { getMediaDuration( item_link, media_kind, media_item_id, is_subdir ); } else { new_item = new_item.replace(/data-duration="">/,'data-duration="0">[Error]'); } // get media duration (limit to 1000 calls)
  1513. 			}
  1514. 			new_index_items.push(new_item);																												// add item to index items
  1515. 			body_classes.add(item_info[5].join(' '));																									// add item classes to body_classes
  1516. 			stats_kinds.push(item_sort_kind);  stats_total_size += Number(item_sort_size);  stats_classes.push(item_info[6]); 							// STATS: add item kind; update total size; add to stats classes
  1517. 		}
  1518. 		body_classes = [...body_classes].filter(body_class => body_class).sort();																		// BODY CLASSES: body_classes to array, filter empty items, sort
  1519. 		stats = buildStats(stats_classes,stats_kinds,stats_total_size);																					// STATS: build stats
  1520. 		if ( sort === '' || sort === undefined ) { sort = getCurrentUIPref('sort_by'); } 																// SORT ITEMS: get sort_by pref
  1521. 		let sort_direction = getCurrentUIPref('sort_direction'); 																						// get sort_direction pref
  1522. 		let sorted_index_items = sortDirListItems(new_index_items, 'sort_by_'+ sort, sort_direction); 													// make initial sort
  1523. 		return [sorted_index_items, body_classes.join(' '),stats,index_html]; 																			// RETURN [sorted_index_items, body_classes, stats, index_html]
  1524. 	}
  1525. 	//==============================//
  1526. 	function getLinkInfo(link) {																										// ===> GET LINK INFO; returns [link,name,ext,kind,item_classes,body_classes,link_protocol]
  1527. 		switch(true) {
  1528. 			case link === undefined: 																											return;	// return if link undefined
  1529. 			case link === null: 																		link = getEl('#content_iframe').src;	break;	// link from opening local link files links in iframe
  1530. 			case link.startsWith('file://') && window.location.protocol === 'file:':					link = link.split('file://')[1];		break;	// local links
  1531. 			case link.startsWith('/') && window.location.protocol === 'file:': 							link = 'file://'+ link; 				break;	// local links
  1532. 			case !link.startsWith('/') && !link.endsWith('/') && !/\./.test(link): 						link = '/'+ link +''; 					break;
  1533. 		}
  1534. 		link = link.replace(/%3C/g,'\&lt;').replace(/\.pdf\..+/,'.pdf');																				// fix and sanitize links
  1535. //		if ( /\.php\?(\w+)=/.test(link) ) 		{ link = link.split('\.php')[1]; }																		// attempt to deal with some php links
  1536. 		let URL = newURL(decodeURIComponentSafe(encodeURIComponent(link)));
  1537. 		let prepped_link, display_name, kind, ext, item_classes = [], body_classes = [], stats_classes = [], aliases = new RegExp(/(symlink|alias|symbolic link)$/,'m'), link_protocol = URL.protocol;
  1538. 		switch(true) {																																	// prep link
  1539. 			case window_protocol !== 'file:': 																											// for non-local pages
  1540. 				switch(true) {
  1541. 					case URL.protocol === 'file:': case URL.protocol === undefined: prepped_link = link; item_classes.push('local','ignored');	break;	// local links from non-local pages
  1542. 					default: prepped_link = URL.href; 																									// non-local pages
  1543. 				}																																break;
  1544. 			case window_protocol === 'file:': 																											// for non-local pages
  1545. 				switch(true) {
  1546. 					case URL.protocol !== 'file:': prepped_link = URL.href; item_classes.push('non_local');										break;
  1547. 					default: prepped_link = URL.pathname;
  1548. 				}
  1549. 		}
  1550. 		switch(true) {																																	// prepare display name, body_classes, and item_classes
  1551. 			case ( /youtube.com|youtu.be/.test(link) && !link.indexOf('/.') ): 
  1552. 				prepped_link = link.replace(/watch%3F/,'watch?');	kind = 'video'; item_classes.push('video','media'); display_name = undefined;	break;	// youtube videos from playlists
  1553. 			case URL.pathname.endsWith('/'):	case ( /\.php\?/.test(link) ):																				// nobreak; dirs, apps and index.php? links
  1554. 				display_name = ( URL.pathname.endsWith('/') ? URL.pathname.split('/').reverse()[1] + '/' : /\.php\?/.test(link) ? link : null );					
  1555. 				switch(true) {
  1556. 					case ( /\.app$|\.app\/$|\.exe$/m.test(display_name) ):		ext = 'app';	kind = ext;												// apps
  1557. 						if ( UI_Prefs_Bool.apps_as_dirs === false ) { item_classes.sort().unshift('file','app'); } else { item_classes.sort().unshift('dir','app'); }		break;
  1558. 					default: 													ext = 'dir';	kind = 'dir';	item_classes.unshift(kind);				// dirs; remove kind from item_classes
  1559. 				}
  1560. 				item_classes.push('non_media');																											// add "non_media" to item_classes
  1561. 				if ( display_name.startsWith('.') ) { item_classes.push('invisible'); stats_classes.push('invisible'); }						break;
  1562. 			default: 																																	// files
  1563. 				display_name = prepped_link.trim().split('/?')[0].split('/').reverse()[0];
  1564. 				switch(true) {
  1565. 					case display_name.toLowerCase().endsWith('symlink'):		ext = 'symlink';												break;
  1566. 					case !/\./.test(display_name):								ext = display_name.toLowerCase();								break;	// if no '.' in link (typical for bin files), ...
  1567. 					default: 																															// find the last . and get the remaining characters
  1568. 						ext = display_name.slice(display_name.lastIndexOf('.') + 1).toLowerCase();
  1569. 						for ( let item_kind in Item_Kinds ) { if ( Item_Kinds[item_kind].includes( ext ) ) { kind = item_kind; } } 						// kind = types
  1570. 						if ( /url|url\/|webloc|webloc\//.test(ext) ) { kind = 'link'; } 																// links
  1571. 						switch(true) {
  1572. 							case kind === 'audio': item_classes.push('media'); 		body_classes.push('has_media','has_audio');				break;
  1573. 							case kind === 'video': item_classes.push('media'); 		body_classes.push('has_media','has_video');				break;
  1574. 							case kind === 'font' : body_classes.push('has_fonts'); 															break;
  1575. 							case kind === 'image': body_classes.push('has_images'); 														break;
  1576. 						}
  1577. 						if ( Item_Settings.ignored.includes( ext ) )	{ item_classes.push('ignored'); stats_classes.push('ignored'); }
  1578. 						if ( display_name.startsWith('.') ) 			{ item_classes.push('invisible'); stats_classes.push('invisible'); }
  1579. 				}
  1580. 				if ( kind === undefined ) { kind = 'other'; }
  1581. 				if ( !/audio|video/.test(kind) ) { item_classes.push('non_media'); }
  1582. 				item_classes.unshift(kind); item_classes.unshift('file');
  1583. 				prepped_link = decodeURIComponentSafe(encodeURIComponent(prepped_link))?.trim();
  1584. 		}
  1585. 		stats_classes.push(kind);
  1586. 		if ( ext === undefined ) { ext = ''; }
  1587. 		if ( aliases.test(display_name) ) { item_classes.push('alias'); }
  1588. 		for ( let item_kind_system of Item_Kinds.system ) { if ( display_name?.endsWith(item_kind_system) ) { item_classes.push('ignored'); } } 		// ignore various system items
  1589. 		item_classes = Array.from(new Set(item_classes)).filter(item => item).join(' '); 															// remove dupe or empty classes, join
  1590. 		return [prepped_link,decodeURIComponentSafe(display_name)?.trim(),ext,kind,item_classes,body_classes,stats_classes.join(' '),link_protocol,URL.origin + URL.pathname];
  1591. 	}
  1592. 	//==============================//
  1593. 	function getItemSizeAndDate(item) {																									// ===> GET ITEM SIZE AND DATE
  1594. 		let item_size_and_date = [], item_display_size, item_sort_size, item_display_date, item_sort_date, size_units = /[BYTES|B|K|KB|MB|GB|TB|PB|EB|ZB|YB]/;
  1595. 		if ( item.length > 1 ) {																													// test for typical date/time separators.
  1596. 			if ( /[-:\/]/.test(item[1]) ) { item_display_date = item[1]; item_display_size = item[2]; } else { item_display_date = item[2]; item_display_size = item[1]; }
  1597. 		}
  1598. 		switch(true) {																																// get size
  1599. 			case item_display_size !== undefined && item_display_size.toLowerCase() === 'dir':	case ( /undefined|—|-|,|\*/.test(item_display_size) ):	case item_display_size === '':
  1600. 																					item_display_size = '&mdash;'; item_sort_size = '0';	break;	// if size is undefined, empty, or punctuation, use these defaults
  1601. 			default:
  1602. 				item_sort_size = getItemSortSize(item_display_size);
  1603. 				switch(true) {
  1604. 					case !item_display_size.toUpperCase().match(size_units) :	item_display_size = formatBytes(item_display_size,1);		break;	// if provided size is only numeric, format byte size
  1605. 					default: item_display_size = item_display_size.replace('K','k').replace(/(\d+)\s*([A-z])/,'$1 $2'); 							// default: format and ensure display size has space between number and units
  1606. 					}																														break;
  1607. 		}
  1608. 		if ( item_display_size === 'NaN undefined' ) { item_display_size = '0 B'; }
  1609. 																																					// get date
  1610. 		if ( [undefined,'','-'].includes(item_display_date) ) { item_display_date = '&mdash;'; item_sort_date = '0'; } else { item_sort_date = getItemDate(item_display_date); }
  1611. 		item_display_date = item_display_date.replace(/, (.+)/,'<wbr>,&nbsp$1').replace(/ (AM|PM)$/im,'<wbr> $1').replace(/\s/g,'&nbsp;'); 			// ensure that time acts as a block for wrapping in narrow sidebar
  1612. 		item_size_and_date.push( item_display_size, item_sort_size, item_display_date, item_sort_date );
  1613. 		return item_size_and_date;
  1614. 	}
  1615. 	function getItemSortSize(val) {																											// GET ITEM SORT SIZE
  1616. 		let sort_size, values = val.replace(/(\d+)\s*([A-z]+)/,'$1 $2').split(' '), size = values[0], unit = values[1];
  1617. 		const factor = { undefined:1, '':1, B:1, K:1000, KB:1000, M:1000000, MB:1000000, G:1000000000, GB:1000000000, T:1000000000000, TB:1000000000000, P:1000000000000000, PB:1000000000000000, E:1000000000000000000, EB:1000000000000000000, Z:1000000000000000000000, ZB:1000000000000000000000 }; // unit to file size
  1618. 		if ( unit !== undefined ) { unit = unit.toUpperCase(); }
  1619. 		sort_size = size * factor[unit]; // convert byte size to multiplication factor
  1620. 		return sort_size;
  1621. 	}
  1622. 	function formatBytes(val, decimals) {																									// ===> FORMAT BYTES: format numeric sizes for display
  1623. 		const k = 1024, dm = (decimals < 0 ? 0 : decimals), sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'], i = Math.floor(Math.log(val) / Math.log(k));
  1624. 		if (val === 0) { return '0 Bytes'; } else { return parseFloat((val / Math.pow(k, i)).toFixed(dm)) +' '+ sizes[i]; }
  1625. 	}
  1626. 	function processDate(match,p1,p2,p3) { //***date formats: 2017-10-09 13:12 || 2015-07-25T02:02:57.000Z || 12-Mon-2017 21:11 ***//		// ===> PROCESS DATE
  1627. 		const mo = 'JanFebMarAprMayJunJulAugSepOctNovDec'.indexOf(p2)/3 + 1; 																		// e.g., convert month into number, or use number
  1628. 		return p3 +'-'+ mo +'-'+ p1;																												// return assembled date: YYYY-MM-DD
  1629. 	}
  1630. 	function getItemDate(val) {																												// ===> GET ITEM DATE: for sorting (YYYY-MM-DD)
  1631. 		let sort_date = val.replace(/^(\d{2})-(\w{3})-(\d{4})/m, processDate) 	// convert Month to number
  1632. 						   .replace(/\b(\d{1})[-:/]/g,'0$1/') 					// add leading 0 for single digit numbers
  1633. 						   .replace(/(\d{2})\/(\d{2})\/(\d{2}),/,'$3$1$2') 		// reorder MM/DD/YY dates to YY/MM/DD
  1634. 						   .replace(/-|:|\s+|\//g,''); 							// remove spacing characters
  1635. 		return sort_date;
  1636. 	}
  1637. 	//==============================//
  1638. 	var getFormattedDuration = (secs) => {																									// ===> GET FORMATTED TIME
  1639. 		if ( isNaN(secs) ) { return '[Error]'; }																									// if server refuses to load media
  1640. 		let sec_num = parseInt(secs, 10), hours = Math.floor(sec_num / 3600), minutes = Math.floor(sec_num / 60) % 60, seconds = sec_num % 60;
  1641. 		let formattedTime = [hours,minutes,seconds].map( v => v < 10 ? "0" + v : v ).filter( (v,i) => v !== "00" || i > 0 ).join(":");
  1642. 			formattedTime = formattedTime.replace(/^0/m,'');	return formattedTime;																// remove initial 0 and return formatted time
  1643. 	};
  1644. 	async function fetchAudioDuration(link,kind) {
  1645. 		return new Promise((resolve, reject) => {
  1646. 			const media = ( kind === 'audio' ? new Audio() : document.createElement('video') );
  1647. 			media.addEventListener('loadedmetadata', () => { resolve(media.duration); });
  1648. 			media.addEventListener('error', reject);
  1649. 			media.src = link.replace(/\&amp;/g,'&');
  1650. 		});
  1651. 	}					
  1652. 	async function getMediaDuration(link,media_kind,id,is_subdir) { 
  1653. 		try { const duration = await fetchAudioDuration(link,media_kind);
  1654. 			switch(true) {
  1655. 				case is_subdir === true:					messageSend('top_body','set_media_duration','', [ id,media_kind,duration ] );	break;	// if subdir, send message to top with duration
  1656. 				default: 									setMediaDuration( id,media_kind,duration );												// else set media duration
  1657. 			}
  1658. 		} catch (error) { setMediaDuration( id,media_kind,Number.NaN ); }																			// if error, set duration error
  1659. 	}
  1660. 	function setMediaDuration(id,kind,duration) { 																							// ===>  SET MEDIA DURATION
  1661. 		try { if ( id === 'content_iframe_file' || /youtube.com|youtu.be/.test(getEl('#'+id+' a').href) ) { return; }								// do not attempt to set duration for iframe files or youtube playlist items
  1662. 			setAttribute('#'+id +' .dirlist_item_media_duration','data-duration',duration);
  1663. 			switch(true) {
  1664. 				case duration !== 0: 																												// if duration !== 0, add time to dir_list item details; else show spinner
  1665. 					getEl('#'+ id +' .dirlist_item_media_duration').innerText = getFormattedDuration(duration);    removeClass('#'+ id,'disabled');    getEl('#'+id).querySelector('input').removeAttribute('disabled');	break;
  1666. 				default:				addClass('#'+ id,'disabled');																				// if duration === 0, disable media item
  1667. 			}
  1668. 			let totalDurationEl = getEl('#total_duration'), total_duration;
  1669. 			if ( totalDurationEl !== null ) {
  1670. 				total_duration = Number( totalDurationEl.getAttribute('data-total_duration') );
  1671. 				total_duration += Number(duration);
  1672. 				setAttribute('#total_duration','data-total_duration',total_duration);
  1673. 				getEl('#total_duration').innerText = getFormattedDuration(total_duration);
  1674. 		} } catch (error) { null }
  1675. 	}
  1676. 	function updateMediaDurations(id,link,kind) { let media_items;
  1677. 		switch(true) {
  1678. 			case id === 'refresh_media_durations':																									// click refresh media durations menu item
  1679. 				media_items = Array.from(getEls('.dirlist_item.media'));		media_items = media_items.filter(el => el.querySelector('.dirlist_item_media_duration').dataset.duration === "0");
  1680. 				media_items.forEach( el => updateMediaDurations(el.id,el.querySelector('a').href,el.dataset.kind) );								// send each media item with id back to function for default processing
  1681. 				if ( isTopWindow() ) { messageSend('iframe','refresh_media_durations'); }													break;
  1682. 			default: if ( getEl('#'+id)?.querySelector('.dirlist_item_media_duration')?.dataset.duration === '0' ) { getMediaDuration( link,kind,( duration ) => { setMediaDuration( id,kind,duration ); }); } break;
  1683. 		}
  1684. 	}
  1685. 	function updateDurations(bool) { // bool === true: don't bother updating stats details, since they aren't visible						// ===> UPDATE DURATIONS
  1686. 		let media_items = getEls('.dirlist_item.media');
  1687. 		if (media_items.length === 0 ) { removeClass('body','has_media has_audio has_video'); return; }
  1688. 		let kind, total_duration = 0, duration = 0, audio_duration = 0, video_duration = 0;
  1689. 		for ( let i = 0; i < media_items.length; i++ ) { 																							// get classes and kind for each item
  1690. 			kind = media_items[i].getAttribute('data-kind'); 																						// = [link,name,ext,kind,item_classes,body_classes];
  1691. 			duration = Number(media_items[i].getElementsByClassName('dirlist_item_media_duration')[0].getAttribute('data-duration'));
  1692. 			setMediaDuration(media_items[i].getAttribute('id'),kind,duration );
  1693. 			total_duration += duration;
  1694. 			setAttribute('#total_duration','data-total_duration',total_duration);
  1695. 			getEl('#total_duration').innerText = getFormattedDuration(total_duration);
  1696. 			addClass('body','has_media');
  1697. 			switch(true) { 																															// update stats details
  1698. 				case bool === true: break;
  1699. 				case kind === 'audio': addClass('body','has_audio');
  1700. 					audio_duration += Number(duration);
  1701. 					getEl('#stats_details_items').querySelectorAll('span.audio')[0].setAttribute('data-audio_duration',' (Total Time: '+ getFormattedDuration(audio_duration) +')');
  1702. 					break;
  1703. 				case kind === 'video': addClass('body','has_video');
  1704. 					video_duration += Number(duration);
  1705. 					getEl('#stats_details_items').querySelectorAll('span.video')[0].setAttribute('data-video_duration',' (Total Time: '+ getFormattedDuration(video_duration) +')');
  1706. 					break;
  1707. 			}
  1708. 		}
  1709. 	}
  1710. 	//==============================//
  1711. 	function buildStats(stats_classes,stats_kinds,stats_total_size) {																			//*** BUILD STATS
  1712. 		stats_classes.sort();
  1713. 		let total_items = stats_classes.length, counts = {}, kinds = [], stats_items = [], total_dirs = 0, total_files = 0, total_dirs_invisible = 0, total_files_invisible = 0, total_invisibles = '';
  1714. 		for ( let i = 0; i < total_items; i++ ) {																								// Get counts
  1715. 			stats_classes[i] = stats_classes[i].split(' ').reverse().join(' ')																	// reorder classes to make invisible/ignored last
  1716. 			counts[stats_classes[i]] = 1 + ( counts[stats_classes[i]] || 0 );																	// get key/value pairs for item_classes/total counts
  1717. 			switch(true) {
  1718. 				case ( !/invisible|ignored/.test(stats_classes[i]) ): 																	break;	// don't count :not(.invisible) and :not(.ignored)
  1719. 				case (getCurrentUIPref('show_invisibles') === 'true' ) && ( getCurrentUIPref('show_ignored_items') === 'false' ):				// show_invisibles && hide_ignored
  1720. 					if ( /invisible/.test(stats_classes[i]) && /ignored/.test(stats_classes[i]) ) { break; }									// don't count .invisible.ignored
  1721. 					if ( /dir/.test(stats_classes[i]) ) { total_dirs_invisible++; } else { total_files_invisible++; }					break;	// else count .ignored
  1722. 				case (getCurrentUIPref('show_invisibles') === 'false' ) && ( getCurrentUIPref('show_ignored_items') === 'false' ):				// hide_invisibles && hide_ignored (hide all)
  1723. 					if ( /dir/.test(stats_classes[i]) ) { total_dirs_invisible++; } else { total_files_invisible++; }					break;	// count .invisible and .ignored (count all)
  1724. 				case (getCurrentUIPref('show_invisibles') === 'true' ) && ( getCurrentUIPref('show_ignored_items') === 'true' ):		break;	// don't count .invisible or .ignored (count none)
  1725. 				case (getCurrentUIPref('show_invisibles') === 'false' ) && ( getCurrentUIPref('show_ignored_items') === 'true' ):				// hide_invisibles && show_ignored
  1726. 					if ( !/invisible/.test(stats_classes[i]) && /ignored/.test(stats_classes[i]) ) { break; }									// don't count .ignored:not(.invisible)
  1727. 					if ( /dir/.test(stats_classes[i]) ) { total_dirs_invisible++; } else { total_files_invisible++; }					break;	// else count .invisible and .invisible.ignored
  1728. 			}
  1729. 		}
  1730. 		for ( let i = 0; i < stats_kinds.length; i++ ) { kinds[stats_kinds[i]] = 1 + ( kinds[stats_kinds[i]] || 0 ); }							// get key/value pairs for item kinds/counts
  1731. 		total_dirs = ( kinds.dir || 0 );		total_files = ( total_items - total_dirs );														// total dirs && files count
  1732. 		if ( getCurrentUIPref('show_invisibles') === 'false' || getCurrentUIPref('show_ignored_items') === 'false' ) {
  1733. 			total_invisibles = ' (+'+ (total_dirs_invisible + total_files_invisible) +')';
  1734. 			total_items = total_items - (total_dirs_invisible + total_files_invisible);
  1735. 			total_dirs = total_dirs - total_dirs_invisible;
  1736. 			total_files = total_files - total_files_invisible;
  1737. 		}
  1738. 		for ( let count in counts ) { 																											// make detail item for each kind of dirlist item --> doesn't preserve order
  1739. 			let kinds_items = count.split(' '), temp_items = [], stats_Item_Kinds = '';
  1740. 			kinds_items.forEach( item => ( !/ignored|invisible/.test(item) ? temp_items.unshift(item) : temp_items.push(item) ) );		kinds_items = temp_items;
  1741. 			kinds_items.forEach( item => ( stats_Item_Kinds += (`<span class="${ item }" >`+ (/ignored|invisible/.test(item) ? ' ('+item+')' : item.trim() ) +`</span>`)) );
  1742. 			let stats_item = `<li class="stats_list_item display_grid ${ kinds_items[0] }" data-kind="${ kinds_items[0] }"><a class="icon stats_list_item_name_a display_flex"  data-count="${ counts[count] }"><span class="has_icon_before_before"></span><span class="stats_list_item_name_a_span">${ stats_Item_Kinds }</span></a></li>`;
  1743. 				stats_items.push(stats_item);
  1744. 		}
  1745. 		stats_items.sort();
  1746. 		return `<nav id="stats_container" class="display_flex width_100"><div id="stats" class="normal pointer overflow_hidden font_size_small">    <ol id="stats_summary" class="background_grey_80 text_color_default margin_0 padding_0">    <li class="stats_list_item line_height_1_2 no_highlight padding_4_8"><span id="stats_summary_totals" class="display_flex align_left" data-size="${ stats_total_size }">${ total_items } Items${ total_invisibles }: ${ total_dirs } Dirs, ${ total_files } Files (${ formatBytes(stats_total_size,2) })</span><span id="total_duration" class="display_none" data-total_duration=""></span></li>    </ol>    <ol id="stats_details_summary" class="border_bottom position_relative background_grey_80 text_color_default margin_0 padding_0 display_none">    <li id="stats_details_summary_total" class="summary_detailed border_bottom padding_4_8 no_highlight"><span>${ total_items } Items (${ total_dirs_invisible + total_files_invisible } invisible or ignored)</span></li>    <li id="stats_details_summary_dirs" class="stats_list_item line_height_1_2 dir summary_detailed background_grey_85 padding_0"><a class="icon stats_list_item_name_a display_flex" data-count="${ total_dirs }"> <span class="stats_list_item_name_a_span display_flex has_icon_before stats_kind">Dirs (${ total_dirs_invisible } invisible or ignored)</span> </a></li>    <li id="stats_details_summary_files" class="stats_list_item line_height_1_2 file summary_detailed background_grey_85 padding_0"><a class="icon stats_list_item_name_a display_flex" data-count="${ total_files }"><span class="stats_list_item_name_a_span display_flex has_icon_before stats_kind">Files (${ total_files_invisible } invisible or ignored)</span></a></li>    </ol>    <div id="stats_details_items_container">    <ol id="stats_details_items" class="margin_0 padding_0 position_relative display_none">    ${ stats_items.join('\n') }    </ol>    </div>    </div></nav>`;
  1747. 	}
  1748. 	function updateStats(bool) { 																														// ===> UPDATE STATS (bool: add or subtract size from total)
  1749. 		let items = getEls('.dirlist_item');																													// get all dir_list items
  1750. 		let stats_classes = [], stats_kinds = [], item_classlist = [], total_size = 0;																			// define various arrays
  1751. 		getEls('.dirlist_item_details.size').forEach(el => total_size += Number(el.dataset.size));
  1752. 		let total_item_size = ( bool === false ? total_size : Number(getData('#stats_summary_totals','size')) );
  1753. 		let item_info;
  1754. 		for ( let i = 0; i < items.length; i++ ) { 																												// get classes and kind for each item
  1755. 			item_info = getLinkInfo( items[i].getElementsByClassName('dirlist_item_name_a')[0].href ); 															// get item info = [link,name,ext,kind,item_classes,body_classes];
  1756. 			item_classlist = item_info[4];																														// get item_classlist
  1757. 			item_classlist = item_classlist.replace(/file|media|audio_loaded|content_loaded|has_subdirectory|selected|non_/g,'').trim();						// remove unwanted classes --> why file and media?
  1758. 			stats_classes.push(item_classlist);																													// add item_classlist to stats_classes
  1759. 			stats_kinds.push( item_info[3] );																													// add Item_Kinds to stats_kinds
  1760. 			total_item_size += Number(items[i].querySelector('.size').dataset.size);
  1761. 		}
  1762. 		getEl('#stats_container').remove(); 																													// remove old stats
  1763. 		getEl('#dir_footer').insertAdjacentHTML( 'afterbegin',buildStats(stats_classes,stats_kinds,total_item_size,2) ); 										// build new stats and add to dir_footer
  1764. 		updateDurations(true); 																																	// update after building stats
  1765. 		initStatsEvents();																																		// initial event listeners for new stats items
  1766. 	}
  1767. 	// ***** END DIR_LIST SETUP ***** //
  1768. 	//============================//
  1769. 	// ***** UI SETUP ***** //
  1770. 	function prepDocHead(agent) {																														// ===> PREP DOC HEAD
  1771. 		document.title = 'Index of '+ window_location; 																											// change the doc title to current location
  1772. 		for ( let attr_name of getEl('html').getAttributeNames() ) { getEl('html').removeAttribute(attr_name); }												// remove html attributes, if any
  1773. 		getEl('head title').removeAttribute('id');
  1774. 		getEls('head meta, head base, head link, head style, head script, head noscript').forEach( headEl => headEl.remove() ); 								// remove various head elements
  1775. 		let head_content = '<meta charset="utf-8"><base href="'+ window.location.origin  +'">' + getEl('head').innerHTML.replace(/<!--(?!>)[\S\s]*?-->/g,'');	// add meta and remove conditional comments
  1776. 		if ( window.location.protocol.startsWith('file') ) { head_content = get_SVG_UI_File_Icon('favicon') + head_content; }									// add custom favicon for local directories
  1777. 		getEl('head').innerHTML = head_content + addStyles(agent);																								// replace head content with prepped content
  1778. 	}
  1779. 	function getUIPrefBodyClasses(agent) {																												// ===> GET UI PREF BODY CLASSES and other initial settings
  1780. 		let queries = new URLSearchParams(window.location.search).entries();		 																			// make new search params from window.location.search
  1781. 			queries = Object.fromEntries(queries);
  1782. 		let body_classes = [], settings = Object.assign({},queries,UI_Settings); 																				// merge UI_Settings and query settings
  1783. 		for ( let key in settings ) {
  1784. 			switch(true) {
  1785. 				case ['grid_font_size','grid_image_size','ui_font','ui_scale','show_image_thumbnails'].includes(key):									break;  // ignore these keys (values set in css or by buildTextEditorUI)
  1786. 				case ['sort_by','sort_direction','theme','texteditor_view'].includes(key):	body_classes.push( key +'_'+ getCurrentUIPref(key) );		break;	// other non-booleans: class = key + value
  1787. 				case getCurrentUIPref(key) === 'false':										body_classes.push( key +'_false' );							break;	// booleans: only add false values
  1788. 				}
  1789. 		}
  1790. 		body_classes.push(agent); body_classes.push('is_'+getOS()); 																							// add browser and os classes
  1791. 		return body_classes.sort().join(' ');
  1792. 	}
  1793. 	function makeNewIndex(el,sort,agent,body_id) {																										// ===> MAKE NEW INDEX
  1794. 		const index_items = getIndexItems(agent), items = index_items[0], type = index_items[1];
  1795. 		const converted_index = convertIndexItems( items, type ); 																								// = array of rows: ["link","date","size"]
  1796. 		switch(type) {
  1797. 			case 'error':	return [[['<tr id="is_error"><td id="is_error_items" class="padding_6_8">'+ ( items === undefined ? '' : items ) +'</td></tr>'],'is_error'],'','',index_items];
  1798. 			default: 		return [buildNewIndex( el.id, converted_index, sort, type, body_id )];
  1799. 		}
  1800. 	}
  1801. 	// ===> BUILD IFRAME DIR LIST UI, with utility iframe for subdirectories add
  1802. 	function buildIframeUI(src,file_name,agent) {
  1803. 		let parent_link = src.split('/').slice(0,-2).join('/') + '/', query_str = new URLSearchParams(window.location.search.toString().slice(1));
  1804. 		let subdirectory = query_str.get('subdirectory') || null, body_id = query_str.get('body_id');
  1805. 		let iframe_directory, iframe_head, iframe_dir_list, content_body, gecko_styles, body_classes, iframe_utility_iframe, new_index, make_new_index, additional_classes;
  1806. 		window.onmessage = function(e) { messageReceive(e); return; }																							// init receive messages
  1807. 		switch(true) {
  1808. 			case window.location.search === "":																													// nobreak; case is true when opening dirs from sidebar source dir
  1809. 			case ( query_str.get('show_directory_source') || query_str.get('is_error') ) === 'true':
  1810. 				if ( elExists('#iframe_dir_styles') ) { getEl('#iframe_dir_styles').remove(); }															break;	// do nothing when viewing directory source or if error page...
  1811. 			default: 																																			// ...else set up iframe directory:
  1812. 				iframe_head = getEl('head');  content_body = getEl('body'); iframe_dir_list = ''; gecko_styles = ''; body_classes = [];
  1813. 				iframe_utility_iframe = '<iframe id="content_iframe_utility" sandbox="allow-scripts allow-same-origin allow-modals allow-popups" style="display:none;"></iframe>';
  1814. 				if ( /\.php\?/.test(src) ) { query_str = new URLSearchParams(makeSrcSearchParams('dir')); }														// define default params for index.php?folder=... pages
  1815. 				for ( let key of query_str.keys() ) {																											// add various body_classes...
  1816. 					switch(true) {
  1817. 						case ( /show_details|ui_font/.test(key) ):	 																					break;	// show details by default
  1818. 						case query_str.get(key) === 'true': 																							break;	// ignore true booleans
  1819. 						case query_str.get(key) === 'false':	body_classes.push(key+'_false');														break;	// add body classes for false boolean params
  1820. 						default:								body_classes.push(key+'_'+getCurrentUIPref(key));										break;	// non-boolean params (theme, sort)
  1821. 					}
  1822. 				}
  1823. 				if ( agent === 'is_gecko' ) { gecko_styles = ('<style id="gecko_style_rules">'+ gecko_style_rules +'</style>'); }
  1824. 				new_index = makeNewIndex(content_body, query_str.get('sort_by'),'',body_id); 																	// make new index
  1825. 				make_new_index = new_index[0];
  1826. 				additional_classes = (new_index[0][1].trim().split(/\s+/)).concat(body_classes);														 		// define additional body classes
  1827. 				if ( !/is_error/.test(new_index[0][1]) ) {																										// if not an a error page...build the ui
  1828. 					iframe_head.querySelectorAll('style,script,meta,link[rel="stylesheet"],link[href$="css"]').forEach( el => el.remove() );					// remove any existing directory index styles
  1829. 					iframe_head.insertAdjacentHTML('beforeend',`<style id="iframe_dir_styles">${iframe_dir_styles }</style><style id="sidebar_styles">${ sidebar_styles }</style><style>${ content_pane_styles }</style><style id="font_styles"></style><style id="font_grid_styles"></style>${gecko_styles}`);	// assemble the iframe head
  1830. 					switch(true) {																																// Assemble content_iframe and utility_iframe content
  1831. 						case subdirectory === 'true':	iframe_dir_list = `<div id="directory_list_outer"><ol id="directory_list" class="border_bottom text_color_default">${ make_new_index[0] }</ol></div>`;	break;
  1832. 						default:
  1833. 							iframe_directory = Directory_Elements('iframe',parent_link);																		// create iframe directory elements
  1834. 							iframe_dir_list = iframe_directory.replace(/insert_prepped_index/,make_new_index[0]).replace(/insert_stats/,make_new_index[2]);		// assemble iframe directory
  1835. 							content_body.removeAttribute('style');	content_body.style.fontFamily = getCurrentUIPref('ui_font');								// remove any body inline styles; set ui_font
  1836. 							content_body.classList.add(...additional_classes);																					// add body styles
  1837. 					}
  1838. 					content_body.innerHTML = iframe_dir_list + Content_Pane_Elements;																			// append iframe_dir_list and content_pane for quicklook
  1839. 				}
  1840. 				if ( subdirectory === null ) { content_body.insertAdjacentHTML('beforeend',iframe_utility_iframe); initIframeEvents(); } 						// don't multiply utility_iframes; init iframe event listeners
  1841. 				if ( subdirectory === 'true' ) {
  1842. 					messageSend('top_body','dirlist_subdir_loaded','',[getEl('#directory_list').innerHTML,make_new_index[1],getCurrentUIPref('parent_id')] );	// send prepped subdir to parent window
  1843. 				} else {
  1844. 					messageSend('top_body','iframe_loaded','',[src,file_name,'dir']); 																			// else send iframe_loaded message
  1845. 				}
  1846. 		}
  1847. 	}
  1848. 	// ===> BUILD TEXT EDITOR UI
  1849. 	function buildTextEditorUI(kind) {
  1850. 		let raw_markdown, body_classes = [], content;
  1851. 		if ( !hasClass('body','has_texteditorUI') ) { 																							// add classes, styles, and scripts; only add once
  1852. 			getEl('head').insertAdjacentHTML('beforeend','<style id="texteditor_styles">'+ texteditor_styles +'</style>');
  1853. 			getEl('head').insertAdjacentHTML('beforeend','<link id="github_markdown_css" rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/github-markdown-css/3.0.1/github-markdown.min.css"></link>');
  1854. 			if ( isTopWindow() ) { getEl('#content_title span').innerHTML = ''; }
  1855. 			body_classes.push('has_texteditorUI', 'texteditor_view_'+getCurrentUIPref('texteditor_view'));
  1856. 		}
  1857. 		switch(true) { 																																// get source text and append UI elements
  1858. 			case !isTopWindow(): 																													// iframe text editing UI
  1859. 				window.onmessage = function(e) { messageReceive(e); return false; }																	// init receive messages is_link
  1860. 				getEl('head').insertAdjacentHTML('afterbegin','<meta charset="utf-8" /><meta http-equiv="Content-Type" content="text/plain; charset="utf-8">');
  1861. 				getEl('head').insertAdjacentHTML('beforeend','<style id="global_styles">'+ global_styles +'</style><style id="utilities_styles">'+ utilities_styles +'</style>');	// add iframe text editing styles
  1862. 				if ( kind === 'link' ) { tempHideTexteditor(); }																					// prevent FOUC for some kinds of content...
  1863. 				raw_markdown = decodeURIComponentSafe( getEl('body').innerText ); 																	// get source text and decode Unicode chars.
  1864. 				document.body.innerHTML = Content_Text_Elements + Utilities_Elements('texteditor'); // add the UI
  1865. 				getEl('#texteditor_txt_pane').value = raw_markdown; 																				// set the source text value
  1866. 				getEl('#texteditor_txt_pane').setSelectionRange(0,0); 																				// set the insertion point to the beginning of the text
  1867. 				if ( /^\#EXTM3U/m.test(getEl('#texteditor_txt_pane').value) ) { content = getEl('#texteditor_txt_pane').value.trim(); messageSend('top_body','iframe_playlist','',content); }	// playlists & filelists
  1868. 				addClass('body','is_text');		getSearchParams().forEach((key, value) => { addClass('body',value+"_"+key); });						// add text editor body classes
  1869. 				break;
  1870. 		}
  1871. 		switch(true) { 																																// assemble text editing body classes
  1872. 			case getCurrentUIPref('text_editing_enable') === 'false' && !isTopWindow(): 															// if text editing disabled...
  1873. 				removeClass('body','texteditor_view_preview texteditor_view_html');																	// remove preview and html classes
  1874. 				body_classes.push('texteditor_view_raw','text_editing_enable_false','texteditor_split_view_false'); 								// show the raw text, no split view
  1875. 				getEl('#texteditor_txt_pane').disabled = true; 																				break;	// disable textarea editing
  1876. 			default:																																// ...otherwise set up text editing
  1877. 				if ( getCurrentUIPref('texteditor_split_view') === 'false' )	{ body_classes.push('texteditor_split_view_false'); } else { body_classes.push('texteditor_view_raw'); }
  1878. 				if ( getCurrentUIPref('texteditor_sync_scroll') === 'false' )	{ body_classes.push('texteditor_sync_scroll_false'); getEl('#texteditor_sync_scroll input').checked = false; }
  1879. 				if ( getCurrentUIPref('texteditor_sync_scroll') === 'true' ) 														{ getEl('#texteditor_sync_scroll input').checked = true; }
  1880. 		}
  1881. 		TextEditing();	initTextEditorEvents();																										// text editing functions & init text editor event listeners
  1882. 	}
  1883. 	// ===> BUILD UI: Append all assembled elements to body
  1884. 	function buildUI() {
  1885. 		let make_new_index, body_classes, main_content, agent = getBrowser(), link_info, file_name, kind, iframe_src;
  1886. 		switch(true) {
  1887. 			case isTopWindow():  																													// if it's not an iframe...
  1888. 				make_new_index = makeNewIndex('body','',agent,'top_body');																			// make index
  1889. 				if ( make_new_index[0] === undefined ) { return; }																					// in case user cancels processing of large directory > 5000 items
  1890. 				body_classes = make_new_index[0][1] +' '+ getUIPrefBodyClasses(agent); 																// delete extra spaces, create array of body class names
  1891. 				main_content = `${ Directory_Elements('top_body') }     ${ Content_Pane_Elements }     ${ Utilities_Elements('top_body') }`;		// assemble html elements
  1892. 				if ( make_new_index[0][1] !== 'is_error' ) { 
  1893. 					main_content = main_content.replace(/insert_prepped_index/,make_new_index[0][0]).replace(/insert_stats/,make_new_index[0][2]);	// add dir_index and stats to MainContent
  1894. 				} else { 
  1895. 					main_content = main_content.replace(/insert_prepped_index/,'').replace(/<ul id=\"dir_header_utilities_row_1[\s\S]+Show Font Grid<\/li>\s*<\/ul>\s*<\/li>\s*<\/ul>/m,'').replace(/<ul id=\"show_texteditor[\s\S]+Text Editor<\/span><\/li><\/ul>/,'').replace(/<footer[\s\S]+footer>/,''); 
  1896. 				}
  1897. 				document.body.innerHTML = '';																										// remove body contents
  1898. 				prepDocHead(agent); 																												// add title, favicon, meta tags, styles to head
  1899. 				setAttribute('body','id','top_body'); 																								// add body id
  1900. 				setAttribute('body','lang','en');																				 					// add body lang attr
  1901. 				if ( document.body.getAttribute('class') !== null ) { document.body.removeAttribute('class'); }										// remove body classes, if any
  1902. 				addClass('body',body_classes); 																										// add body classes
  1903. 				document.body.innerHTML = main_content; 																							// add main content to body
  1904. 				uiPrefFontSet(); 	uiPrefScaleSet(null,Number(getCurrentUIPref('ui_scale')),true);													// set ui font and scale
  1905. 				
  1906. 				if ( make_new_index[0][1] !== 'is_error' ) { initEvents(); autoLoadItems(); } else { initBaseEvents(); 
  1907. 								showDirectorySource(window.location.origin + window.location.pathname + '?error=is_error');
  1908. 								addClass('#content_iframe','has_content');
  1909. 				}
  1910. 				break;
  1911. 			case !isTopWindow() && !window.location.pathname.endsWith('.pdf'):																		// if iframe and not pdf (i.e. embed el), setup iframe UI
  1912. 				iframe_src = window.location.href;     link_info = getLinkInfo(iframe_src);     file_name = link_info[1];     kind = link_info[3];
  1913. 				setAttribute('body','id','content_body'); 																													// add iframe body id
  1914. 				switch(true) {																																				// determine UI type...
  1915. 					case ( /\.php\?/.test(iframe_src) ):																													// attempt to deal with some .php?folder links
  1916. 					case ( /app|dir/.test(kind) && !/is_error/.test(iframe_src)): 			buildIframeUI(iframe_src,file_name,agent);	addClass('body','is_dir');	break;	// if dir, set up iframe dir list UI
  1917. 					case kind === 'link': case link_info[2] === 'cuetxt':							main_content = document.body.innerText;									// nobreak; if link or cuetxt, send file content to top
  1918. 					case ( /code|text|markdown|other/.test(kind) ) && !(window.parent !== window.top):		buildTextEditorUI(kind);	addClass('body','is_text');			// if text file, set up iframe text editor
  1919. 																		main_content = getEl('#texteditor_txt_pane').value;											break;	// get text content for optional processing (cuetxt)
  1920. 					case kind === 'htm':															main_content = getEl('html').outerHTML; addClass('body','is_html');		// nobreak; if html file, get innerHTML
  1921. 					default:											initIframeEvents();																			break;	// if any other iframe content
  1922. 				}
  1923. 				messageSend('top_body','iframe_loaded','',[iframe_src,file_name,kind,null,main_content]);															break;	// send iframe_loaded message (not dir|link file)
  1924. 		}
  1925. 		uiPrefImgThumbsToggle(getCurrentUIPref('show_image_thumbnails'));													// load image thumbnails after building ui
  1926. 	}
  1927. 	buildUI();
  1928. 	//============================//
  1929. 	// INITIALIZE EVENT LISTENERS
  1930. 	function initEvents() { if ( window.parent !== window.top ) { return; }
  1931. 		initBaseEvents();    initDirListEvents();    initStatsEvents();    initWarningEvents();								// ===> INIT EVENT LISTENERS // init base events, stats events, and dir list events
  1932. 		getEl('#default_settings').onclick = function(e) 												{ uiPrefsReset(e); }; 													// settings to default
  1933. 		getEl('#show_directory_source').onclick = function(e)											{ e.stopPropagation();	showWarning('showDirectorySource'); };			// toggle show directory source
  1934. 		getEl('#open_in_content_pane').onclick = function(e)										 	{ e.stopPropagation();	showWarning('openSidebarInContentPane'); };		// open sidebar in content pane
  1935. 		getEl('#open_in_texteditor').onclick = function(e)											 	{ e.preventDefault();	openInTextEditor(); }; 							// openInTextEditor
  1936. 		getEls('#open_font_label, #open_playlist_label, textarea, div[contenteditable], select, #scale').forEach( el => el.onclick = function(e) { e.stopPropagation(); });		// stopProp on various clicks
  1937. 		getEls('#show_font_grid, #show_grid_btn, #show_image_grid, #show_texteditor, #texteditor').forEach( el => el.onclick = function(e) { eStopPrevent(e); showThis( el.id,false,true ); });	// show grids or text editor
  1938. 		getEl('#show_grid_btn').onmouseenter = function() { addClass('body','has_menu_grid'); };		getEl('#show_grid_btn').onmouseleave = function() { removeClass('body','has_menu_grid'); };
  1939. 		getEl('#close_audio').onclick = function(e) 													{ e.stopPropagation();	showMedia('close_audio'); }; 					// close audio button click
  1940. 		getEl('#dir_footer').onclick = function() 														{ removeClass('.dirlist_item','hovered'); };							//
  1941. 		getEl('#content_image').onclick = function(e)													{ e.stopPropagation();	scaleImages(e); };								// Zoom image on click
  1942. 		getEls('#content_title,#content_audio_title').forEach( el => el.onclick = function()			{ playlistShowItem(el.id); });
  1943. 		getEls('#open_font,#open_playlist').forEach( el => el.onclick = function(e)						{ openFiles(e,el.id); });							// Open files (onclick show warnings)
  1944. 		getEls('#open_font,#open_playlist').forEach( el => el.onchange = function(e)					{ e.preventDefault(); e.stopPropagation();	openFiles(e,el.id); });							// Open font and playlist files
  1945. 		getEl('#go_to_item').onclick = function(e) 														{ goToItem(e); };														// Go to item
  1946. 		getEl('#show_invisible_items').onclick = function() 											{ getEl('#show_invisibles').click();	getEl('#show_invisibles').blur(); }					// 
  1947. 		getEl('#play_toggle').onclick = function(e) 													{ toggleAllChecked(e); };												// toggle media checkboxes
  1948. 		getEl('#make_playlist').onclick = function(e) 													{ eStopPrevent(e);	showWarning('warning_make_playlist'); };			// make playlist
  1949. 		getEl('#save_svg').onclick = function(e) 														{ e.stopPropagation();	fontGlyphSave(); };								// save glyph as svg
  1950. 		getEl('#dir_footer_utilities').onmouseenter = function() 										{ addClass('body:not(.has_menu), body:not(.has_menu_parents)','has_menu_footer'); };
  1951. 		getEl('#dir_footer_utilities').onmouseleave = function()									 	{ removeClass('body:not(.has_menu), body:not(.has_menu_parents)','has_menu_footer'); };
  1952. 		getEls('.prev_next_btn').forEach( el => el.onclick = function(e) 								{ contentHeaderButtons(e,el.id); }); 									// ============> combine with next?
  1953. 		getEls('#increase,#decrease').forEach( el => el.onmousedown = function(e) 						{ e.preventDefault(); contentHeaderButtons(e,this.id); });				// onclick scale buttons
  1954. 		getEls('#audio,#content_video').forEach( el => el.onended = function() 							{ navigateByArrowKey(['ArrowRight',true]); });							// autoplay media onended
  1955. 		getEls('#loop_media_files,#shuffle_media_files,#audio_options input,#audio_options label').forEach( el => el.onclick = function(e)	{ el.blur(); mediaPlaybackOptions(e,el.id); });	// media loop/shuffle options
  1956. 		getEl('#refresh_media_durations').onclick = function()				 							{ updateMediaDurations('refresh_media_durations'); };
  1957. 		getEls('#parent_dir_nav #svg_multiply,#close_playlist').forEach(el => el.onclick = function(e)	{ e.preventDefault(); e.stopPropagation(); showWarning('closeContent',['closePlaylist','false']); });
  1958. 	}
  1959. 	function initBaseEvents() { 																// ===> INIT BASE EVENT LISTENERS: minimal listeners needed for error pages
  1960. 		window.onmessage = function(e) { messageReceive(e); return false; }																										// init receive messages
  1961. 		document.body.onclick = function()																{ menuClose(); }; 														// close menu click
  1962. 		getEls('.menu_container').forEach( el => el.onclick = function(e) 								{ e.stopPropagation(); menuShow(e,el.id); });							// toggle menus on click
  1963. 		getEls('#dir_menu_main li').forEach( el => el.onclick = function(e) 							{ e.stopPropagation(); menuClick(); menuClose(e); });
  1964. 		getEls('#dir_menu_main li').forEach( el => el.onmouseenter = function() { removeClass('#dir_menu_main li','selected hovered');  addClass('#dir_menu_main li:hover','selected'); });
  1965. 		getEls('.toggle_UI_pref').forEach( el => el.onclick = function(e) 								{ uiPrefToggleOnClick(e,this.id); menuClose(e); });						// toggle UI prefs click
  1966. 		getEl('#font_toolbar').onclick = function(e) { e.stopPropagation(); }
  1967. 		getEls('#dir_wrapper,#content_header').forEach( el => el.onclick = function(e)					{ e.stopPropagation(); focusEl('#top_body'); });						// focus sidebar on click
  1968. 		getEls('#content_pane, #content_pane .content_el').forEach( el => el.onclick = function(e) 		{ e.stopPropagation(); focusEl('#'+ el.id); });							// focus content on click
  1969. 		getEl('#ui_font').onclick = function(e) 														{ uiPrefFontSet(e,this.id) };											// show the UI font textarea
  1970. 		getEl('#ui_scale input').oninput = function(e)	{ e.stopPropagation(); setData('#ui_scale span.menu_item','value',Math.round(this.value)+'%'); }; 				// show scale %
  1971. 		getEl('#ui_scale input').onmouseup = function(e)												{ uiPrefScaleSet(e,this.value); };										// scale UI
  1972. 		getEl('#ui_scale').ondblclick = function(e)														{ uiPrefScaleSet(e,100) };												// set 100% scale on dblclick
  1973. 		getEl('#show_help').onclick = function(e)								 						{ e.preventDefault(); addClass('#top_body','has_help'); };				// show help click
  1974. 		getEl('#close_help').onclick = function(e)									 					{ e.preventDefault(); removeClass('body','has_help'); };				// close help click
  1975. 		getEl('#help_container').onclick = function(e) 													{ e.stopPropagation(); };												// help container: ignore clicks
  1976. 		getEl('#close_btn').onclick = function(e) 														{ eStopPrevent(e); closeContent(); this.blur(); };			 			// close button
  1977. 		getEl('#reload_btn').onclick = function(e)								 						{ eStopPrevent(e); resetContent(); this.blur(); this.classList.remove('reset'); };	// reset btn
  1978. 		getEl('#handle').onmousedown = function(e)													 	{ resizeSidebar(e); }													// resize sidebar
  1979. 		document.addEventListener('mouseup',function()	 												{ document.onmousemove = null; });										// revoke drag on mouseup
  1980. 		document.addEventListener('mousemove',function()												{ removeClass('body','no_hover'); });									// remove no_hover class
  1981. 	}
  1982. 	function initWarningEvents() {
  1983. 		getEls('#warnings_container button')?.forEach( el => el.onclick = function(e) 					{ eStopPrevent(e); warningButtons( el.id ); });
  1984. 		getEls('body.has_overlay, body.has_warning').forEach( el => el.onclick = function(e) 			{ eStopPrevent(e); return; });								// prevent user actions with warning or overlay
  1985. 		getEls('body.has_overlay, body.has_warning').forEach( el => el.onmousedown = function(e)		{ eStopPrevent(e); return; });								// prevent user actions with warning or overlay
  1986. 		getEls('body.has_overlay, body.has_warning').forEach( el => el.onmouseup = function(e) 			{ eStopPrevent(e); return; });								// prevent user actions with warning or overlay
  1987. 	}
  1988. 	function initDirListEvents() { if ( !isTopWindow() ) { return; }													// ===> INIT DIR_LIST EVENT LISTENERS; called whenever new dir list items added
  1989. 		getEls('.dirlist_item')?.forEach( el => el.onclick = function(e) 								{ clickDirListItem(e,el.id); });										// show item or play/pause media
  1990. 		getEls('.dirlist_item.dir .has_icon_before_before')?.forEach( el => el.onclick = function(e)	{ subDirOpenClose(e,el.closest('.dirlist_item').id); });				// open/close subdirectories
  1991. 		getEls('.dirlist_item.dir')?.forEach( el => el.ondblclick = function(e) 						{ e.preventDefault(); showWarning('dirOpen', [el.id, el.querySelector('a').href] ); });
  1992. 		getEls('.dirlist_item.link')?.forEach( el => el.ondblclick = function(e) 						{ openLinkFile(e,el.id); });											// open link files on dblclick
  1993. 		getEls('.dirlist_item.media input')?.forEach( el => el.onmousedown = function(e)				{ toggleChecked(e,el.closest('.dirlist_item').id); });	// toggle media checkboxes
  1994. 		getEls('.dirlist_item.media input')?.forEach( el => el.onclick = function(e)					{ el.blur(); e.preventDefault(); e.stopPropagation();  });							// Click media checkboxes
  1995. 		getEls('.dirlist_item.playlist')?.forEach( el => el.ondblclick = function(e)					{ eStopPrevent(e); clickThis('#open_playlist'); });						// open playlist
  1996. 		getEls('.dirlist_item.non_local')?.forEach( el => el.onmouseenter = function()					{ el.title = 'Non-local file'; });										// add non-local title prop
  1997. 		getEl('#show_invisibles_container')?.addEventListener('click',function(e) 						{ e.stopPropagation(); clickThis('#show_invisibles_container input'); });
  1998. 	}
  1999. 	function initStatsEvents() {																																		// ===> INIT STATS EVENT LISTENERS
  2000. 		getEl('#stats')?.addEventListener('mouseleave',function() { menuClose(); });
  2001. 		getEl('#stats_summary')?.addEventListener('click',function(e) 									{ e.stopPropagation(); menuShow(e,'stats_summary'); });					// show stats
  2002. 		getEls('#stats_details_items li, #stats_details_summary_dirs, #stats_details_summary_files')?.forEach( el => el.onmouseenter = function() {
  2003. 			getEls('.dirlist_item'+ statsGetHoveredListClass(el))?.forEach( el => el.classList.add('hovered')); 																// add the hovered class
  2004. 			getEl('.dirlist_item.hovered')?.scrollIntoView({ behavior:'smooth',block:'nearest',inline:'nearest' }); 															// scroll 1st matched el
  2005. 		});
  2006. 		getEl('#stats_details_summary_total')?.addEventListener('click',function() { menuClose(); });
  2007. 		getEls('#stats_details_items li, #stats_details_summary_dirs, #stats_details_summary_files')?.forEach( el => el.onmouseleave = function() { removeClass('.dirlist_item.hovered','hovered'); });
  2008. 		getEls('#stats_details_items li, #stats_details_summary_dirs, #stats_details_summary_files')?.forEach( el => el.onclick = function() {									// onclick stats footer detail items
  2009. 			if ( !hasClass('body','sort_by_kind') ) { clickThis('#sort_by_kind'); } 																							// sort by kind
  2010. 			if ( getEl('.dirlist_item'+ statsGetHoveredListClass(el)) !== null ) {
  2011. 				if ( el.classList.contains('invisible') && getCurrentUIPref('show_invisibles') === 'false' )	{ clickThis('#show_invisibles'); }
  2012. 				if ( el.classList.contains('ignored') && getCurrentUIPref('show_ignored_items') === 'true' )	{ clickThis('#show_ignored_items'); }
  2013. 				if ( isTopWindow() ) { showThis( getEl('.dirlist_item'+ statsGetHoveredListClass(el)).id ); } else { showThis(getEl('.dirlist_item'+ statsGetHoveredListClass(el)).id,true,false); } // click first matched item
  2014. 			}
  2015. 		});
  2016. 	}
  2017. 	function initGridItemEvents() {																																	// ===> INIT GRID ITEM EVENT LISTENERS
  2018. 		getEls('#content_grid .grid_item')?.forEach( el => el.onclick = function(e) { e.preventDefault(); e.stopPropagation(); showContentGridItem(e,el.dataset.id,el.querySelector('a').href,el.dataset.kind); }); // grid item
  2019. 		getEls('#content_grid .grid_item:not(.selected)')?.forEach( el => el.onmouseenter = function()	{ addClass('#'+el.dataset.id,'hovered'); scrollThis('#directory_list','.hovered'); });
  2020. 		getEls('#content_grid .grid_item:not(.selected)')?.forEach( el => el.onmouseleave = function()	{ removeClass('#'+el.dataset.id,'hovered'); });
  2021. 		getEls('.dirlist_item.image,.dirlist_item.font')?.forEach( el => el.onmouseenter = function()	{
  2022. 			if ( hasContent('grid') ) 	{ addClass('#content_grid > .grid_item[data-id="'+ el.id +'"]','hovered'); scrollThis('#content_grid','.hovered'); } });
  2023. 		getEls('.dirlist_item.image,.dirlist_item.font')?.forEach( el => el.onmouseleave = function()	{
  2024. 			if ( hasContent('grid') ) 	{ removeClass('#content_grid > .grid_item[data-id="'+ el.id +'"]','hovered'); scrollThis('#content_grid','.hovered'); } });
  2025. 	}
  2026. 	function initCuesheetEvents() {																																	// ===> INIT CUESHEET EVENT LISTENERS
  2027. 		getEls('.cuesheet_track_list_container li')?.forEach( el => el.onclick = function(e) 			{ menuShow(e,el.id); });
  2028. 		getEls('.cuesheet_track_list_container')?.forEach( el => el.onmouseenter = function(e) { 								// add selected class to first track whose time is less than currentTime
  2029.  			menuShow(e,this.id)
  2030.  			if ( el.id === 'cuesheet_track_list_container_video' ) { getEl('#cuesheet_track_list_video').style.top = getEl('#content_title_container').clientHeight; }
  2031. 			let currentTime = getEls('#audio,#content_video')?.currentTime;
  2032. 			el.querySelector('.cuesheet_track_list').setAttribute('data-duration',currentTime); 												// set duration attr of cue sheet track list
  2033. 			this.querySelector('.cuesheet_track_list').style.height = getEl('#content_container').height + getEl('#content_title_container').height; // set height of cue sheet track list
  2034. 			let currentTrack = Array.from(el?.querySelector('.cuesheet_track_list li')).reverse().filter(function() { return parseInt( el?.dataset?.duration ) <= Math.round(currentTime); })[0];
  2035. 				currentTrack?.parentElement?.children?.classList.remove('selected');
  2036. 				currentTrack?.classList.add('selected');
  2037. 		});
  2038. 	}
  2039. 	//============================//
  2040. 	// INITIALIZE IFRAME EVENT LISTENERS
  2041. 	function initIframeEvents() { initSubframeEvents(); if ( isTopWindow() || window.parent !== window.top ) { return; }													// ===> INIT IFRAME EVENT LISTENERS
  2042. 		document.body.onclick = function(e) 															{ e.preventDefault();   focusEl('#content_iframe'); }					// focus iframe
  2043. 		document.body.querySelectorAll('body,textarea,form,select,input,option')?.forEach( el => el.onclick = function(e) { e.stopPropagation(); messageSend('top_body','blur_top'); el.focus(); });	// focus iframe
  2044. 		if ( /(\.html*|\.php)$/.test(window.location.href) ) {
  2045. 			getEls('a')?.forEach( el => el.onclick = function(e) { iframeClick(e,'','link',el.getAttribute('href')); }); 													return;	// return if html; rest unneeded
  2046. 		}
  2047. 		document.addEventListener('mousemove',function()												{ removeClass('body','no_hover'); });										// remove no_hover class
  2048. 		getEls('.dirlist_item')?.forEach( el => el.onclick = function() 								{ showThis(el.id,true,false); });											// select clicked iframe dirlist item
  2049. 		getEls('.dirlist_item a')?.forEach( el => el.onclick = function(e) 								{ e.preventDefault(); });													// do nothing for iframe dirlist links
  2050. 		getEls('.dirlist_item.dir .has_icon_before_before')?.forEach( el => el.onclick = function(e) 	{ subDirOpenClose(e,el.closest('.dirlist_item').id); });					// open/close subdirs
  2051. 		getEls('.dirlist_item:not(.ignored)')?.forEach( el => el.ondblclick = function(e) 				{ iframeClick( e,el.id,'link',el.querySelector('a').href ); });				// dblclick open iframe dirs/files
  2052. 		getEl('#open_in_sidebar a')?.addEventListener('click',function(e) { e.preventDefault(); messageSend('top_body','open_iframe_dir_in_sidebar','',window.location.href); });	// no break;
  2053. 		getEl('#iframe_parent_link')?.addEventListener('click',function(e) 								{ iframeClick(e,'iframe_parent_link','link',this.href); });					// iframe parent
  2054. 		getEls('.toggle_UI_pref')?.forEach( el => el.onclick = function(e) 								{ uiPrefToggleOnClick(e,el.id); }); 										// toggle UI prefs
  2055. 		initStatsEvents();																																							// initialize stats events listeners
  2056. 	}
  2057. 	function initSubframeEvents() {
  2058. 		if ( window.parent !== window.top ) {
  2059. 			getEl('#content_body').style.pointerEvents = 'none';
  2060. 			getEl('#content_body').addEventListener('click',function(e) { e.preventDefault(); e.stopPropagation(); });	// prevent events in quicklook
  2061. 		}
  2062. 	}
  2063. 	function initTextEditorEvents() { let preview = getEl('#texteditor_preview_pane');																	// ===> INIT TEXT EDITOR EVENT LISTENERS
  2064. 		if ( !isTopWindow() ) {
  2065. 			getEls('#content_body,#content_body #toolbar,#content_body #toolbar li').forEach( el => el.onclick = function() { focusEl('#content_body'); });
  2066. 			getEl('#content_body').querySelectorAll('textarea,form,select,input,option').forEach( el => el.onclick = function(e) { eStopPrevent(e); });
  2067. 		}
  2068. 		getEls('#toolbar_buttons .toggle_UI_pref').forEach( el => el.onclick = function(e)				{ uiPrefToggleOnClick(e,el.id); });								// text editing UI is not in DOM on page load;
  2069. 		getEl('#toolbar').onmousedown = function(e) 													{ e.preventDefault(); }; 										// prevent textarea from losing focus if sidebar clicked
  2070. 		window.onresize = function()																	{ texteditor_ResetSplit(); }; 									// reset text editor split
  2071. 		getEl('#text_editing_handle').ondblclick = function(e)											{ e.stopPropagation(); texteditor_ResetSplit(); };				// reset text editor split
  2072. 		getEl('#text_editing_handle').onmousedown = function(e)											{ eStopPrevent(e); texteditor_ResizeSplit(); };					// resize text editor panes
  2073. 		getEl('#text_editing_handle').onmouseup = function()											{ document.onmousemove = null; }								// remove onmousemove
  2074. 		getEls('.checkbox_container').forEach( el => el.onclick = function(e)							{ toggleCheckBox(e,this.id); }); 								// toggle checkboxes (texteditor_preview, toolbar)
  2075. 		getEl('#texteditor_txt_pane').oninput = function() { 																			// add edited body class; if iframe, send edited message; update live markdown preview
  2076. 			if ( !hasClass('body','texteditor_edited') ) { addClass('body','texteditor_edited');	if ( !isTopWindow() ) { messageSend('top_body','iframe_edited','',''); } }    MDlivePreview();
  2077. 		};
  2078. 		getEls('.texteditor_pane').forEach( el => el.onscroll = function(e)								{ texteditor_SyncScroll(e,this.id); });
  2079. 		getEls('#save_btn li').forEach( el => el.onclick = function() 									{ texteditorSaveBtn(el.id); }); 								// save text editor content
  2080. 		getEl('#clear_text').onclick = function()	 													{ showWarning('texteditorClear'); }; 							// clear text button
  2081. 		preview.onclick = function(e) 																	{ e.stopPropagation() };
  2082. 		preview.querySelectorAll('.checklist input').forEach( el => el.onclick = function(e)	 		{ e.stopPropagation(); MDliveCheckBoxes(el); });				// Live checkboxes
  2083. 		preview.querySelectorAll('.table-of-contents a').forEach( el => el.onclick = function(e)		{ e.preventDefault();  MDtocClick(el.id); }); 					// Preview TOC click navigation
  2084. 		preview.querySelectorAll('.uplink').forEach( el => el.onclick = function(e) 					{ e.stopPropagation(); MDheaderClick(); }); 					// Click header uplinks
  2085. 		initWarningEvents();
  2086. 	}
  2087. 	function initFontPreviewEvents() {																													// ==> INIT FONT PREVIEW_EVENTS
  2088. 		getEls('#font_toolbar select,#font_toolbar textarea,#font_toolbar input').forEach( el => el.onclick = function(e)	{ e.stopPropagation(); el.focus(); });
  2089. 		getEls('#font_toolbar label').forEach( el => el.onclick = function(e)							{ e.stopPropagation(); el.parentElement.querySelector('input').focus(); });	// Stop click propagation
  2090. 		getEls('#content_font *').forEach( el => el.onmousedown = function(e)							{ e.stopPropagation();  focusEl(el.id); });						// Stop click propagation
  2091. 		getEls('#font_toolbar select').forEach( el => el.onchange = function(e) 						{ fontOptions(e,el.id,el.value,el.options[el.selectedIndex].dataset?.prop,el.options[el.selectedIndex].dataset?.value) });
  2092. 		getEls('#font_toolbar textarea').forEach( el => el.onkeydown = function(e) 						{ if ( /enter/.test(e.key.toLowerCase()) ) { e.preventDefault(); } });		// prevent typing return in textareas
  2093. 		getEls('#font_toolbar textarea,#font_toolbar input').forEach( el => el.oninput = function(e) 	{ fontOptions(e,el.id,el.value) });								// init font toolbar specimen modifications
  2094. 		getEls('#font_specimen_adjustments li').forEach( el => el.ondblclick = function(e)				{ e.stopPropagation(); fontReset(el.dataset.inputid); });		// reset adjustments
  2095. 		getEls('.font_glyph_item').forEach( el => el.onclick = (e) => 									{ showFontGlyph(e,el.id) });									// show font specimen glyph on click
  2096. 		getEl('#font_specimen_glyph').onmousedown = (e) => { fontGlyphMove(e,'#font_specimen_glyph'); }																	// init move glyph
  2097. 	}
  2098. 	//============================//
  2099. 	// INITIALIZE KEYDOWN EVENTS
  2100. 	function eKey_BackSlash(e) {																													// "BACKSLASH" KEY
  2101. 		switch(true) {
  2102. 			case cmdShiftKey(e): 																																				// Cmd Shift + \ : toggle split
  2103. 				switch(true) {
  2104. 					case isTopWindow() && hasContent('text,code,markdown'): 	messageSend('iframe','texteditor_split_view'); 											break;	// send toggle split view message
  2105. 					case getEl('#texteditor_split_view').height > 0: 									getEl('#texteditor_split_view').click();						break;	// if split view visible...click toggle split
  2106. 				}																																						break;
  2107. 			case cmdKey(e):		if ( !isTopWindow() ) { messageSend('top_body','show_sidebar'); } else { getEl('#show_sidebar').click(); }								break;	// Cmd + \ : toggle sidebar
  2108. 		}
  2109. 	}
  2110. 	function eKey_Enter(e) {																																						// "ENTER" KEY
  2111. 		let selected_el = (hasContent('font_file') || hasContent('font_specimen') ? getEls('#content_font .selected,#content_grid .selected')[0] : getEls('.dirlist_item.selected')[0]);
  2112. 		switch(true) {
  2113. 			case hasClass('body','has_menu'):															e.preventDefault(); menuClick(); menuClose(); messageSend('iframe','menu_close');	break;	// click selected menu item
  2114. 			case hasClass('body','has_warning') || hasClass('body','has_help'):							e.preventDefault();	clickThis('button.focus, button:focus');						break;	// click focused warning btn
  2115. 			case hasClass('body','focus_content') && hasContent('font') && selected_el !== null:		showFontGlyph(e,selected_el.id);													break;	// show font glyph
  2116. 			case !isTopWindow():			 																																						// if iframe...
  2117. 				switch(true) {
  2118. 					case hasClass('body','has_top_menu'): 												messageSend('top_body','menuClick');												break;	// close main menu
  2119. 					case elExists('.dirlist_item.audio.selected') && !hasClass('.dirlist_item.audio.selected','audio_loaded'):
  2120. 						iframeClick(e,getEl('.dirlist_item.selected').id,'dblclick',getEl('.dirlist_item.selected a').href);																break;
  2121. 					case elExists('.dirlist_item.selected') && cmdKey(e):	iframeClick(e,getEl('.dirlist_item.selected').id,'dblclick',getEl('.dirlist_item.selected a').href);			break;	// webloc or url file
  2122. 					case elExists('.dirlist_item.audio_loaded') && !hasClass('.dirlist_item.selected','audio_loaded'):		eStopPrevent(e); mediaPlayPause();								break;	// play/pause media
  2123. 				}																																											break;
  2124. 			case selected_el?.classList.contains('app') && UI_Prefs_Bool.apps_as_dirs === false:																							break;	// don't open app folders
  2125. 			default: 
  2126. 				switch(true) {
  2127. 					case selected_el?.classList.contains('.disabled'):	case hasContent('texteditor'):																	break;	// no nothing for disabled or default behavior
  2128. 					case selected_el?.classList.contains('audio') && !selected_el.classList.contains('audio_loaded'):		showMedia('audio',getEl('.dirlist_item.audio.selected').id );	break;	// show selected audio file
  2129. 					case selected_el?.classList.contains('media'):															eStopPrevent(e); mediaPlayPause();								break;	// else play/pause media
  2130. 					case ( /dir|link|playlist/.test(selected_el?.classList) ) && cmdKey(e): dirOpen(e,getEl('.dirlist_item.selected').id,getEl('.dirlist_item.selected a').href);			break;	// open dirs, links, playlists
  2131. 					case ( /dir|link/.test(selected_el?.classList) ):																																// nobreak
  2132. 					default:																								selected_el?.click();													// default: click selected item
  2133. 				}
  2134. 		}
  2135. 	}
  2136. 	function eKey_Escape() {																																				// "ESCAPE" KEY
  2137. 		if ( getAttribute('#content_pane','data-loaded') !== 'loaded' ) { removeAttribute('#content_pane','data-loaded'); removeAttribute('#content_iframe','src'); } 				// close loading iframe
  2138. 		switch(true) {
  2139. 			case !isTopWindow(): if ( hasClass('body','has_quicklook') ) { quickLookThis('close'); } else { messageSend('top_body','focus_top'); }							break;	// focus top from iframe content
  2140. 			case document.activeElement.tagName.toLowerCase() !== 'body':	case hasClass('body','focus_content') && !hasClass('body','has_menu'):	focusEl('#top_body');	break;	// focus top from non-iframe content
  2141. 			case document.activeElement.tagName.toLowerCase() === 'body':																											// if top already focussed...
  2142. 				switch(true) {
  2143. 					case hasClass('body','has_menu'): case hasClass('body','has_menu_stats'): 							menuClose();										break;	// close menu or
  2144. 					default:																/* closeContent('esc'); */	focusEl('#top_body');										// close content
  2145. 				}
  2146. 		}
  2147. 		document.onmousemove = null;	window.getSelection().removeAllRanges();	window.stop();							// remove text selections; stop loading; cancel mousemove event watcher
  2148. 		removeClass('body','has_overlay');	removeClass('.dirlist_item','dirlist_subdir_loading');
  2149. 		getEls('.dirlist_item.selected,.dirlist_item.content_loaded').forEach( el => el.classList.remove('selected','content_loaded') );
  2150. 		getEls('.show_input input')?.forEach( el => el.value = ''); removeClass('.show_input','show_input');
  2151. 		if ( hasClass('body','has_warning') || hasClass('body','has_help') ) { getEls('#warning_btn_cancel,#close_help').forEach( el => el.click() ); }					// close warnings or help
  2152. 	}
  2153. 	function eKey_Period(e) {
  2154. 		 window.stop(); removeClass('.dirlist_item','dirlist_subdir_loading'); if ( hasClass('body','has_warning') ) {	e.preventDefault();	getEl('#warning_btn_cancel,#close_help').click(); }
  2155. 		if ( getAttribute('#content_pane','data-loaded') !== 'loaded' ) { closeContent('iframe'); }
  2156. 	}
  2157. 	function eKey_Space(e) {																																// "SPACE" KEY
  2158. 		switch(true) {
  2159. 			case isTopWindow():
  2160. 				switch(true) {
  2161. 					case hasContent(['audio','ignore']): case hasContent('video'):								e.preventDefault(); mediaPlayPause();							break;	// media play/pause
  2162. 					case ( hasContent('image') || hasContent('font_specimen')) && hasContent('hidden_grid'):	e.preventDefault(); closeContent();								break;	// close grid image
  2163. 					case hasContent('font_file_glyph'):  case hasContent('font_specimen_glyph'):				e.preventDefault(); closeFont();								break;	// close glyph
  2164. 					case hasContent('font') && getEl('.font_glyph_item.selected') !== null:						e.preventDefault(); showFontGlyph(null,getEl('.font_glyph_item.selected').id);		break;	// show glyph
  2165. 					case hasContent('grid') && getEl('.grid_item.selected') !== null:							e.preventDefault(); getEl('.grid_item.selected').click();		break;	// show grid items
  2166. 				} 																																								break;
  2167. 			case !isTopWindow(): 																																		// not top window
  2168. 				switch(true) {
  2169. 					case elExists('.dirlist_item.audio_loaded') && !hasClass('body','has_quicklook'):	e.preventDefault(); messageSend('top_body','iframe_play_pause_media');	break;	// play/pause top media if no quicklook
  2170. 					case hasClass('body','has_quicklook'):			e.preventDefault(); quickLookThis('close');																						break;	// close quicklook
  2171. 					case getEl('.dirlist_item.selected') !== null:	e.preventDefault(); quickLookThis(getEl('.dirlist_item.selected').id,getEl('.dirlist_item.selected').dataset.kind);				break;	// show quicklook
  2172. 				} 
  2173. 		}
  2174. 	}
  2175. 	function eKey_Tab(e) { e.preventDefault(); let incr = ( e.shiftKey === true ? 1 : -1 ); navigateByTabKey(e,incr); }										// "TAB" KEY
  2176. 	function eKey_A(e) { selectMultipleItems(e); }																											// "A" KEY Select all dir items with cmd_key
  2177. 	function eKey_E(e) {																																	// "E" KEY
  2178. 		switch(true) {
  2179. 			case hasClass('body','has_warning'): 																													break;
  2180. 			case cmdShiftKey(e):				eStopPrevent(e);
  2181. 				if ( !isTopWindow() ) { messageSend('top_body','toggle_texteditor'); } else { getEl('#show_texteditor a').click(); }
  2182. 				addClass('#top_body','focus_content');																												break;	// toggle text editor
  2183. 			case cmdKey(e):	eStopPrevent(e); if ( !isTopWindow() ) { messageSend('top_body','toggle_menu'); } else { menuShow(e,'dir_menu_main_container'); }		break;	// toggle main menu
  2184. 		}
  2185. 	}
  2186. 	function eKey_R(e) {																																	// "R" KEY
  2187. 			switch(true) {
  2188. 				case cmdKey(e) && !isTopWindow():					 							e.preventDefault(); messageSend('top_body','reload');		break;	// send reload message to top
  2189. 				case cmdKey(e) && hasClass('#content_body','texteditor_edited'): 				e.preventDefault(); showWarning('resetContent'); 			break;	// warn before reloading edited iframe text files from textarea
  2190. 				case cmdKey(e): 					if ( !hasContent() ) { return true; } else { e.preventDefault(); getEl('#reload_btn').click(); }		break;	// reload window if no content open else reload/reset content
  2191. 			}
  2192. 	}
  2193. 	function eKey_W(e) {																																	// "W" KEY
  2194. 		switch(true) {
  2195. 			case !isTopWindow():																e.preventDefault();		messageSend('top_body','close');	break;	// send close message to top
  2196. 			case hasClass('body','has_help'):												 							getEl('#close_help').click();		break;	// close help
  2197. 			case hasContent('audio') && hasContent('null'):				 												closeContent('audio');				break;	// close audio when nothing else open
  2198. 			case ( /has_\w+list/.test(getClassNames('body')) && !hasContent() ):				showWarning('closeContent',['closePlaylist','false']);		break;	// close playlist
  2199. 			case !hasContent('null'):															e.preventDefault(); 	closeContent();						break;	// close content
  2200. 			default: 																																		return;	// else close window (or normal behavior)
  2201. 		}
  2202. 	}
  2203. 	getEls('#top_body, #content_body').forEach( el => el.onkeydown = function(e) {	if ( window.parent !== window.top ) { return; }							// ===> MAIN KEYDOWN EVENTS
  2204. 		let active_el = document.activeElement, active_el_tag = active_el.tagName.toLowerCase();																	// allow default: buttons, inputs, selects, textareas
  2205. 		switch(true) {
  2206. 			case e.key === 'Enter':
  2207. 				switch(true) {
  2208. 					case (/ui_font/.test(active_el.id)): 										uiPrefFontSet(e);											break;
  2209. 					case (/go_to_item_input/.test(active_el.id)): 								goToItem(e);												break;
  2210. 					default:																	eKey_Enter(e,active_el);									break;	// Key = Enter/Return
  2211. 				} 																
  2212. 			case ( /button|input|select|textarea/.test(active_el_tag) && !/escape|tab|shiftkey|metakey|altkey/.test(e.key.toLowerCase())   && !( cmdKey(e) && /r|w|-|=/.test(e.key) )): return; // prevent/allow certain key combos
  2213. 			case active_el.hasAttribute('contentEditable') 			  && !(/escape|tab|shiftkey|metakey|altkey/.test(e.key.toLowerCase())  && !( cmdKey(e) && /r|w|-|=/.test(e.key) )):	return; // ...in certain situations.
  2214. 			case e.key === 'Escape': 																eKey_Escape();											break;
  2215. 			case (/has_warning|has_help/.test(getClassNames('body')) && !( cmdKey(e) || (/escape|tab|shiftkey|enter/.test(e.key.toLowerCase()) ) ) ):		// nobreak
  2216. 			case e.key === 'shiftKey' && ( hasClass('body','has_warning') || hasClass('body','has_help') ):		if (e.key !== 'Enter' && e.key !== 'Tab') { e.preventDefault(); return false; }		break;	// Key = Shift
  2217. 			case ( /Arrow/.test(e.key) ): 															arrowKeyFunctions(e,false,el);							break;	// (e,bool,selected_el.id); id for dblclick iframe item
  2218. 			case e.key === ' ': 																	eKey_Space(e);											break;	// Key = Space
  2219. 			case ( e.key && !e.metaKey && !e.altKey && !e.ctrlKey && e.key !== 'Tab' && !/Arrow/.test(e.key) ): 				navigateByTypedStr(e);		break; 	// alphanumeric navigation
  2220. 			case e.key === 'a' && cmdKey(e): 														eKey_A(e);												break;	// Cmd + a: select all
  2221. 			case e.key === 'd' && cmdShiftKey(e) && !hasClass('body','has_warning'): 				e.preventDefault(); getEl('#show_details').click();		break;	// Cmd/Ctrl + D: Toggle Details
  2222. 			case e.key === 'e':	 																	eKey_E(e);												break;	// Cmd/Ctrl + E: Toggle Main Menu or Text Editor
  2223. 			case e.key === 'g' && cmdKey(e) && ( hasClass('#top_body','has_images') || hasClass('#top_body','has_fonts') ): 	e.preventDefault(); getEl('#show_grid_btn').click();	break;	// Show grids
  2224. 			case e.key === 'i' && cmdShiftKey(e): 	if ( !isTopWindow() ) { messageSend('top_body','toggle_invisibles'); } else { getEl('#show_invisibles_container input').click(); }	break;	// Toggle invisibles
  2225. 			case e.key === 'j' && cmdShiftKey(e):							 						goToItem(e);											break;
  2226. 			case e.key === 'o' && cmdShiftKey(e):													window.open( getAttribute('.dirlist_item.selected a','href') );						break;	// Cmd+Shift+O: Open in new window
  2227. 			case e.key === 'r': 																	eKey_R(e);												break;	// Cmd/Ctrl + Shift + R: Refresh
  2228. 			case e.key === 'w' && cmdKey(e): 														eKey_W(e);												break;	// KEY = W && Cmd/Ctrl: close content
  2229. 			case e.key === '=' && cmdKey(e) && hasContent('grid,image,font,glyph'): 	e.preventDefault();	contentHeaderButtons(e,'increase'); 			break;	// Cmd/Ctrl + equals: scale larger
  2230. 			case e.key === '-' && cmdKey(e) && hasContent('grid,image,font,glyph'): 	e.preventDefault(); contentHeaderButtons(e,'decrease'); 			break;	// Cmd/Ctrl + hyphen: scale smaller
  2231. 			case e.key === '\\': 																	eKey_BackSlash(e);										break;	// KEY = \ BACKSLASH
  2232. 			case e.key === 'Tab':																	eKey_Tab(e);											break;	// KEY = TAB
  2233. 			case e.key === '.' && cmdKey(e): 														eKey_Period(e); 										break;	// click cancel button
  2234. 		} // end switch
  2235. 	});
  2236. 	// ***** END EVENT LISTENER INITIALIZATION
  2237. 	//============================//
  2238. 	function menuShow(e,id) {																																					// ===> SHOW MENUS
  2239. 		if ( e !== null ) { e.stopPropagation(); }
  2240. 		if ( /dir_menu/.test(id) && /has_menu/.test(getClassNames('body')) ) { menuClose(); return; }																					// close menu on click if open
  2241. 		removeClass('body','has_top_menu has_menu has_menu_parents has_menu_stats is_blurred,show_sidebar_false');	removeClass('#dir_menu_main *','selected hovered show_input');		// remove classes
  2242. 		let el, menu_el = getEl('#'+id), menu_el_classlist = menu_el.classList, parent_nav_id, time, position = getEl('#dir_header_utilities_row_1').offsetTop - 1 + 'px';				// get clicked menu element
  2243. 		switch(true) {
  2244. 			case id === 'dir_menu_main_container':	setStyle('#'+ id +' > ul','top',position);	 			addClass('#top_body','has_menu'); 									break;	// show main menu
  2245. 			case id === 'dir_menu_parents':			setStyle('#'+ id +' > ul','top',position);				addClass('body','has_menu_parents');								break;	// show dir_menu_parents
  2246. 			case id === 'stats_summary':			setStyle('#stats_details_items','height',getEl('#stats_container').height - getEl('#stats_details_summary').height - 4);			// show stats menu
  2247. 				updateDurations();																			addClass('body','has_menu_stats'); 									break;	// update durations, set classes				
  2248. 			case menu_el_classlist.contains('has_submenu'):				removeClass('li.has_submenu','selected hovered'); menu_el.classList.toggle('selected');					break;	// toggle open submenu
  2249. 			case ( /about_link|donate_link|contact_link/.test(id) ):	changeLocation([menu_el.href,'external']);																break;	// external menu links
  2250. 			case id === 'cuesheet_track_list_container_audio':			case id === 'cuesheet_track_list_container_video':																// onmouseenter cue_sheet...
  2251. 				el = getEl('#'+id); 				setStyle('#'+id+' > div','top',el.offsetTop + el.clientHeight - 5 +'px');													break;	// set y position of cuesheet track list
  2252. 			case id.startsWith('cuesheet_item_'): 																																		// click cuesheet track list items
  2253. 				switch(true) {
  2254. 					case menu_el.classList.contains('selected'): mediaPlayPause(); 																								break; // play/pause if already selected
  2255. 					default:																																					// otherwise select new cuesheet track list item
  2256. 						parent_nav_id = menu_el.closest('nav').id; time = getEl('#'+id).getAttribute('data-duration'); // N.B.: cue time format is mm:ss:ff (ff = frames, 75 frames/sec)
  2257. 						addRemoveClassSiblings('#'+ id,'selected');
  2258. 						switch(parent_nav_id) {
  2259. 							case 'cuesheet_track_list_container_audio': if ( time < getEl('#audio').duration ) 			{ getEl('#audio').currentTime = time; } 				break;
  2260. 							case 'cuesheet_track_list_container_video': if ( time < getEl('#content_video').duration )	{ getEl('#content_video').currentTime = time; }			break;
  2261. 						}
  2262. 					}																																							break;
  2263. 		}
  2264. 	}
  2265. 	function menuClick() { getEl('#dir_menu_main .selected:not(.hovered)')?.querySelectorAll('a,span,label')[0]?.click(); if ( hasClass('body','focus_content') ) { messageSend('iframe','menu_close'); } }	// ===> CLICK MENU
  2266. 	function menuClose() { 																																						// ==> CLOSE MENUS
  2267. 		removeClass('body','has_top_menu has_menu has_menu_parents has_menu_stats is_blurred');	removeClass('#dir_menu_main *','selected hovered show_input');							// remove classes
  2268.  	}
  2269. 	function statsGetHoveredListClass(el) { let this_class = '.'+ (el?.dataset?.kind?.split(', '));																				// ===> GET HOVERED STATS CLASS
  2270. 		switch(true) {
  2271. 			case el.id === 'stats_details_summary_dirs':			this_class = '.dir';											break;
  2272. 			case el.id === 'stats_details_summary_files':			this_class = '.file';											break;
  2273. 			case this_class === '.dir':								this_class = '.dir:not(.ignored):not(.invisible):not(.app)';	break;
  2274. 			case this_class === '.dir.app':							this_class = '.dir.app:not(.ignored):not(.invisible)'; 			break;
  2275. 		}																															return this_class;
  2276. 	}
  2277. 	//============================//
  2278. 	// DIRLIST CLICK AND SELECT FUNCTIONS
  2279. 	function clickDirListItem(e,id) { e.preventDefault(); let el = getEl('#'+id), src = getEl('#'+ id +' a').href;																	// ===> CLICK DIR LIST ITEM
  2280. 		switch(true) {
  2281. 			case window.parent !== window.top: 																														return;
  2282. 			case ( !/rowid/.test(id) ):																																break;	// null if not a dirlist item
  2283. 			case e.metaKey && /'app|dir|font|image/.test(getClassNames('#'+id)):			selectMultipleItems(e,id);												break;	// select multiple items on click
  2284. 			case !isTopWindow(): 					e.stopPropagation();	showThis(id,true,true);																			// iframe dirlist items
  2285. 													if ( el.classList.contains('audio_loaded') )	{ messageSend('top_body','iframe_play_pause_media'); }			break;	// play/pause iframe audio onclick
  2286. 			case el.classList.contains('audio'): 	if ( el.classList.contains('audio_loaded') )	{ mediaPlayPause(); } else { showThis(id,false,true); }			break;	// play/pause media or show content on click
  2287. 			case el.classList.contains('video'): 	if ( /youtube.com|youtu.be/.test(src) ) { showThis(id); return; }
  2288. 				if ( el.classList.contains('content_loaded') )	{ mediaPlayPause(); } else { showWarning( 'showThis',[id] ); }										break;	// ''    ''
  2289. 			default:
  2290. 				switch(true) {
  2291. 					case hasClass('body','texteditor_edited') || ( /has_\w+list/.test(getClassNames('#top_body') ) ):		showThis(id); 							break;	// if top edited, show item (i.e.hide text editor)
  2292. 					case hasClass('body','iframe_edited'):									messageSend('iframe','unloading','',['showThis',id]);					break;	// if iframe edited, show warning
  2293. 					default:															 	showWarning( 'showThis',[id] );													// default: show content with warning
  2294. 				}
  2295. 		}
  2296. 	}
  2297. 	function iframeClickLink(e,id,link) {																										// ===> IFRAME CLICK LINKS from html files
  2298. 		let url, kind;
  2299.         if ( !link.startsWith('#') ) { url = newURL(link); if ( e !== null ) { e.preventDefault(); } } 												// if link is not a link fragment, create url, prevent default
  2300.   		switch(true) {
  2301. 			case link.startsWith('#'):	case url.href.startsWith('file:///?'):	case url === undefined:	 									break;	// allow default link fragment behavior
  2302. 			case id === 'tbody': 		window.location = link + '?&show_directory_source=true';											break;	//
  2303. 			case id === 'iframe_parent_link': messageSend('top_body','show_iframe_parent','',[getEl('#iframe_parent_link').href,'dir','iframe_parent']);	break; // send message "show_iframe_parent"
  2304. 			case url.protocol === 'file:' && window.location.protocol !== 'file:':	messageSend('top_body','local_link');					break;	// show warning when attempting to open local links from non-local pages
  2305. 			case url.protocol !== 'file:' && window.location.protocol === 'file:':	window.open(link,'_blank');								break;	// open remote link from local page in new tab/window
  2306. 			case url.protocol === 'file:' && window.location.protocol === 'file:':																	// nobreak; open local links to local files in iframe
  2307. 			case url.protocol === 'about:':										 																	// nobreak; document #link fragments
  2308. 			case RegExp(url.hostname).test(window.location.hostname): 																				// nobreak; same origin links (might not include TLD) (just covering bases)
  2309. 			case RegExp(window.location.hostname).test(url.hostname): 																				// no break; same origin links (might not include TLD) (just covering bases)
  2310. 				kind = getLinkInfo(url.href)[3];
  2311.  				if ( /dir|app/.test(kind) ) { messageSend('top_body','show_iframe_dir','',[link,kind,id] ); } else { messageSend('top_body','show_iframe_file','',[link,kind,id] ); }	break;
  2312. 			default: window.open(link,'_blank'); 																							break;	// else open external document links in new tab
  2313. 		}
  2314. 	}
  2315. 	function iframedblClickThis(e,id,link) { e.stopPropagation();																				// ===> IFRAME DOUBLECLICK THIS iframe dir_list items (files and dirs)
  2316. 		if ( /_/.test(id) ) { id = id.split('_')[0]; }	// temp: if double-clicking a subdir item, id === top parent item id; we'd like to send full subdir item id so that it can be reopened when the subdir item is closed.
  2317. 		let el = getEl('#'+id);
  2318. 		let kind = el.dataset.kind, message = ( /dir|app/.test(kind) ? 'show_iframe_dir' : 'show_iframe_file' ); 								// get item kind
  2319. 		if ( kind === 'audio' ) { removeClass('.dirlist_item.audio','audio_loaded selected'); el.classList.add('audio_loaded','selected'); }	// iframe audio
  2320. 		messageSend('top_body',message,'',[link,kind,id]);																												// send message
  2321. 	}
  2322. 	function iframeClick(e,id,kind,link) { e.preventDefault(); 
  2323. 		switch(true) {
  2324. 			case window.parent !== window.top: 								e.stopPropagation();				return;
  2325. 			case kind === 'dblclick':		case e.type === 'dblclick':		iframedblClickThis(e,id,link);		break;
  2326. 			case kind === 'dirlist_item':									clickDirListItem(e,id);				break;
  2327. 			case kind === 'link': 											iframeClickLink(e,id,link);			break;
  2328. 		}
  2329. 	}
  2330. 	//============================//
  2331. 	// ===> CLICK TOGGLE UI PREF ELEMENTS
  2332. 	function uiPrefToggleOnClick(e,id) { e.stopPropagation(); e.stopImmediatePropagation(); showWarning('uiPrefToggle',getEl('#'+id).getAttribute('data-ui_pref') ); }
  2333. 	function uiPrefToggle(pref_id) {																										// ===> TOGGLE UI PREFS: and update searchParams
  2334. 		let settings_value = [pref_id,UI_Settings[pref_id]].join('_'), current_value = getCurrentUIPref(pref_id), new_value = getNewUIPref(pref_id);
  2335. 		let message_target = ( isTopWindow() ? 'iframe' : 'top_body' ), send = 'false';
  2336. 		if ( /button|label|select|input/.test( document.activeElement.tagName.toLowerCase() ) ) {  document.activeElement.blur(); }	// blur any focused form elements
  2337. 		switch(true) {
  2338. 			case ( pref_id === 'show_image_thumbnails'):															uiPrefImgThumbsToggle(new_value[1]);		send = 'true';	break;
  2339. 			case ( /texteditor_|text_editing/.test(pref_id) ):														textEditorTogglePrefs(pref_id,new_value);	send = 'true';	break;	// Text Editor Preferences
  2340. 			case !hasClass('#content_body','show_details_false') && pref_id === 'show_details' && !isTopWindow(): 	// nobreak; hide iframe details on first toggle; special case needed
  2341. 			case new_value[1] === 'false':									addClass('body',pref_id +'_false'); 	searchParamSet(pref_id,'false');			send = 'true';	break;
  2342. 			case new_value[1] === 'true':	case current_value === 'false':	removeClass('body',pref_id +'_false'); 	searchParamDelete( pref_id );				send = 'true';	break;
  2343. 			case ( /sort_by_/.test(pref_id) ):																		uiPrefSortToggle(pref_id);									break;	// toggle sorting
  2344. 			case ( /theme|theme_light|theme_dark/.test(pref_id) ):													uiPrefThemeToggle(new_value);								break;	// toggle light/dark theme
  2345. 			case new_value.length > 1 && settings_value === new_value.join('_'):																										// nobreak; new value === settings value
  2346. 			default:																																									// other non-booleans
  2347. 				searchParamSet( getNewUIPref(pref_id)[0],new_value.join('_') );																											// set searchParam
  2348. 				removeClass('body',[pref_id,current_value].join('_'));	addClass('body',new_value.join('_'));																			// remove old bodyclass; add new bodyclass
  2349. 				send = 'true';
  2350. 		}
  2351. 		if ( send === 'true' && isTopWindow() && !/show_details|show_sidebar/.test(pref_id) ) { messageSend(message_target,'uiPrefToggle','',pref_id); }				// send message to iframe
  2352. 		if ( /show_invisibles|show_ignored_items/.test(pref_id) ) { updateStats(); }																					// update stats if necessary
  2353. 	}
  2354. 	function uiPrefsReset(e) { eStopPrevent(e);																											// ===> DEFAULT SETTINGS: remove queries;		
  2355. 		if ( window.confirm( 'Are you sure you want to remove all your temporary UI settings from the URL query string?' ) ) {
  2356. 			removeClass('body','has_menu');
  2357. 			let query_str = '',selected_str = '',history_str = '';
  2358. 			if ( getCurrentUIPref('selected').length && getCurrentUIPref('selected').match(/[0-9\+]+?/) )	{ selected_str += 'selected='+ getCurrentUIPref('selected'); }
  2359. 			if ( getCurrentUIPref('history').length && getCurrentUIPref('history').match(/[0-9\+]+?/) )		{ history_str += 'history='+ getCurrentUIPref('history'); }
  2360. 			query_str = history_str +'&'+ selected_str;
  2361. 			if ( query_str.length > 1 ) { query_str = '?'+ query_str.replace(/\s/g,'+'); }
  2362. 			window.location.assign(window_location + query_str);
  2363. 		}
  2364. 	}
  2365. 	//============================//
  2366. 	function uiPrefThemeToggle(new_value) {																								// ===> TOGGLE UI PREF THEME
  2367. 		new_value = new_value.join('_');
  2368. 		removeClass('body','theme_dark theme_light'); addClass('body',new_value);
  2369. 		if ( new_value === 'theme_light' ) { searchParamDelete( 'theme' ); } else { searchParamSet( 'theme','dark' ); }
  2370. 		if ( isTopWindow() ) 									{ messageSend('iframe','uiPrefToggle','',new_value); }									// send message iframe
  2371. 	}
  2372. 	function uiPrefFontSet(e) { eStopPrevent(e); let value;																					// ===> SET UI FONT
  2373. 		switch(true) {
  2374. 			case e?.type === 'click':	getEl('#ui_font input').value = getCurrentUIPref('ui_font'); addClass('#ui_font','show_input');	getEl('#ui_font input').focus();		break;	// show input & current ui font on click
  2375. 			case e?.key === 'Enter': 	value = getEl('#ui_font input').value;																											// get the entered ui font
  2376. 				if ( value !== '' ) { document.body.style.fontFamily = value; searchParamSet('ui_font',value); } else { document.body.style.fontFamily = null; searchParamDelete('ui_font'); }
  2377. 				messageSend('iframe','set_ui_font','',value);
  2378. 				removeClass('#ui_font','show_input'); menuClose();																												break;	// set the font; close menu
  2379. 			default:	if ( UI_Prefs_Non_Bool.ui_font !== getCurrentUIPref('ui_font') ) { document.body.style.fontFamily = getCurrentUIPref('ui_font'); }								// set the ui font on page load
  2380. 		}
  2381. 	}
  2382. 	function uiPrefScaleSet(e,value,bool) { // bool === true --> from buildUI																					// ===> SET UI SCALE
  2383. 		if ( e !== null ) { e.stopPropagation(); }
  2384. 		switch(true) {
  2385. 			case Math.round(value) === 100:	document.body.style.removeProperty('transform'); document.body.style.removeProperty('width'); document.body.style.removeProperty('height');	// remove body styles
  2386. 				getEl('#ui_scale .menu_item').dataset.value = '100%'; getEl('#ui_scale_input').value = 100;																				// reset input
  2387. 				searchParamDelete('ui_scale');																																break;		// delete the searchParam
  2388. 			default:
  2389. 				document.body.style.transform = 'scale('+value+'%)'; document.body.style.width = Math.round(10000/Number(value))+'%'; document.body.style.height = Math.round(10000/Number(value))+'%';	// add body styles
  2390. 				searchParamSet('ui_scale',Math.round(value));																															// set the searchParam
  2391. 		}
  2392. 		if ( Number(value) < 100 ) { document.documentElement.style.width = Math.round(10000/Number(value))+'%'; } else { document.documentElement.style.removeProperty('width'); }		// scale the html element if value < 1
  2393. 		if ( bool === true ) { getEl('#ui_scale .menu_item').dataset.value = value+'%'; getEl('#ui_scale_input').value = value; }														// set the input on load
  2394. 	}
  2395. 	function uiPrefImgThumbsToggle(bool) {																									// ===> TOGGLE UI PREF IMG THUMBS
  2396. 		let image_files = getEls('.dirlist_item.image'), current_background_image, max_count = 2000;												// Add/remove image thumbnails as background icons
  2397. 		switch(true) {
  2398. 			case getEl('.stats_list_item.image a')?.dataset.count > max_count && getCurrentUIPref('show_image_thumbnails_always') === 'false': 		// nobreak; don't show thumbs if show_image_thumbnails_always === false
  2399. 			case bool === 'false':	addClass('body','show_image_thumbnails_false'); searchParamSet('show_image_thumbnails','false');				break;
  2400. 			default: removeClass('body','show_image_thumbnails_false');  searchParamDelete('show_image_thumbnails');
  2401. 		}
  2402. 		image_files.forEach( (image ) => {
  2403. 			current_background_image = image.querySelector('a .has_icon_before_before').style.backgroundImage;										// get the current background_image, save for future toggle
  2404. 			switch(true) {																															// toggle thumbnail display
  2405. 				case getEl('.stats_list_item.image a')?.dataset.count > max_count && getCurrentUIPref('show_image_thumbnails_always') === 'false':	// nobreak; don't show thumbs if show_image_thumbnails_always === false
  2406. 				case bool === 'false':																												// show default icon, don't remove existing thumbnail
  2407. 					image.querySelector('a .has_icon_before_before').style.backgroundImage = get_SVG_UI_File_Icon('file_icon_image') +','+ current_background_image;	// only first background image is visible
  2408. 					break;
  2409. 				default:																															// remove default image icon or load image thumbnail
  2410. 					image.querySelector('a .has_icon_before_before').style.backgroundImage	= 'url("'+ image.querySelector('a').href +'")';
  2411. 					image.querySelector('a .has_icon_before_before').dataset.image_url		= 'url("'+ image.querySelector('a').href +'")';
  2412. 			}
  2413. 		});
  2414. 	}
  2415. 	function loadImageThumbnail(id) { let image = getEl('#'+id);
  2416. 		image.querySelector('a .has_icon_before_before').style.backgroundImage	= 'url("'+ image.querySelector('a').href +'")';
  2417. 		image.querySelector('a .has_icon_before_before').dataset.image_url		= 'url("'+ image.querySelector('a').href +'")';
  2418. 	}	
  2419. 	function uiPrefSortToggle(pref_id) {																									// ===> TOGGLE UI SORT PREF
  2420. 		let current_sort_by = 		 getCurrentUIPref('sort_by'), 			new_sort_by = pref_id.split('_').reverse()[0];
  2421. 		let current_sort_direction = getCurrentUIPref('sort_direction'),	new_sort_direction = ( new_sort_by !== current_sort_by ? 'ascending' : getNewUIPref('sort_direction_'+ current_sort_direction)[1] );
  2422. 		switch(true) {																																	// toggle sort_by
  2423. 			case new_sort_by !== current_sort_by:	new_sort_by === 'default' ? searchParamDelete('sort_by') : searchParamSet('sort_by',new_sort_by);	break;
  2424. 			case new_sort_by === current_sort_by:																										break;
  2425. 		}
  2426. 		switch(true) {																																	// toggle sort_direction
  2427. 			case new_sort_by !== current_sort_by:																										// nobreak
  2428. 			case current_sort_direction === 'descending':	searchParamDelete('sort_direction'); 				break;									// delete search_param if new sort is ascending (default)
  2429. 			case current_sort_direction === 'ascending':	searchParamSet('sort_direction','descending');		break;									// add descending search_param
  2430. 		}
  2431. 		removeClass('body','has_menu sort_by_name sort_by_default sort_by_duration sort_by_size sort_by_date sort_by_kind sort_by_ext sort_direction_ascending sort_direction_descending'); // remove all sorting body classes
  2432. 		addClass('body',pref_id,'sort_direction_'+ new_sort_direction);
  2433. 		subDirClose();																																	// close subdirs
  2434. 		// RE-SORT DIRECTORY ITEMS:
  2435. 		let has_dir = false, sorted, iframe_src, iframe_url, iframe_params, items_html_arr = [];
  2436. 		if ( isTopWindow() && hasContent('dir') ) { has_dir = true; iframe_src = getEl('#content_iframe').src; }
  2437. 		Array.from(getEls('.dirlist_item')).forEach(el => items_html_arr.push(el.outerHTML.replace(/border_bottom |border_top /g,'')));	// get elements for new sort
  2438. 		sorted = sortDirListItems( Array.from(items_html_arr), pref_id, new_sort_direction );															// sort the items
  2439. 		getEl('#directory_list').innerHTML = sorted;																							// insert sorted items into dir_list
  2440. 		initDirListEvents();		initIframeEvents();																							// re-initialize dir_list event listeners
  2441. 		switch(true) {
  2442. 			case hasContent('font_grid'):							showGrid('show_font_grid');							break;	// sort grids --> change this to actual sort, not reload
  2443. 			case hasContent('image_grid'):						showGrid('show_image_grid'); 						break;	// sort grids --> change this to actual sort, not reload
  2444. 			case hasContent('grid'):												showGrid('show_grid'); 								break;	// sort grids --> change this to actual sort, not reload
  2445. 			case has_dir === true:																												// re-sort iframe directory
  2446. 				 if ( elExists('.dirlist_item.selected') ) { showThis(getEl('.dirlist_item.selected').id); }									// show the selected directory
  2447. 				 iframe_url = new URL(iframe_src);																								// create url obj
  2448. 				 iframe_params = new URLSearchParams(iframe_url.search)																			// create url search params
  2449. 				 iframe_params.set('sort_by',pref_id.slice(pref_id.lastIndexOf('_') + 1));														// set sort_by
  2450. 				 iframe_params.set('sort_direction',new_sort_direction);																		// set sort_direction params
  2451. 				 iframe_url.search = iframe_params.toString();																					// update url search params
  2452. 				 getEl('#content_iframe').src = iframe_url.href;																		break;	// reload the iframe with new src url
  2453. 			case elExists('.dirlist_item.selected:not(.audio)'): showThis(getEl('.dirlist_item.selected').id); 							break; 	// after sort, show selected item; don't autoloadcoverart
  2454. 		}
  2455. 	}
  2456. 	function textEditorTogglePrefs(pref_id) {																							// ===> TOGGLE TEXT EDITOR PREFERENCES (from menus or toolbar buttons)
  2457. 		switch(true) {
  2458. 			case ( /text_editing_enable/.test(pref_id) ):																									// toggle text editing
  2459. 				getEl('body').classList.toggle('text_editing_enable_false');
  2460. 				if ( hasClass('body','text_editing_enable_false') ) { searchParamSet('text_editing_enable','false'); } else { searchParamDelete('text_editing_enable'); } 			break;
  2461. 			case ( /texteditor_view_raw|texteditor_view_preview|texteditor_view_html/.test(pref_id) ): 														// toggle texteditor_preview/texteditor_view_html panes
  2462. 				if ( hasClass('body',pref_id) ) { uiPrefToggle('texteditor_split_view'); }																	// don't toggle split when changing texteditor view
  2463. 				switch(true) {
  2464. 					case ( /texteditor_view_raw/.test(pref_id) ):
  2465. 						addClass('body','texteditor_view_raw');	break;	// add pref_id bodyclass
  2466. 					case ( /texteditor_view_preview|texteditor_view_html/.test(pref_id) ):
  2467. 						removeClass('body','texteditor_view_preview texteditor_view_html');	addClass('body',pref_id);										// add pref_id bodyclass
  2468. 						switch(true) {																															// toggle .texteditor_view_raw
  2469. 							case !hasClass('body','texteditor_split_view_false'):		addClass('body','texteditor_view_raw');																			break;
  2470. 							default: 													removeClass('body','texteditor_view_raw');
  2471. 						}
  2472. 				}																																														break;
  2473. 			case ( /texteditor_split_view/.test(pref_id) ):
  2474. 				switch(true) {
  2475. 					case !hasClass('body','texteditor_split_view_false'):																																	// add split_view
  2476. 						removeClass('body','texteditor_split_view_true'); addClass('body','texteditor_split_view_false'); searchParamSet('texteditor_split_view','false'); focusEl('#texteditor_txt_pane');	break;
  2477. 					default:	removeClass('body','texteditor_split_view_false'); addClass('body','texteditor_split_view_true');	searchParamDelete('texteditor_split_view');								// remove split_view
  2478. 				}																																														break;
  2479. 			case ( /texteditor_sync_scroll/.test(pref_id) ):
  2480. 				switch(true) {
  2481. 					case getCurrentUIPref('texteditor_sync_scroll') === 'true':			searchParamSet('texteditor_sync_scroll','false');	getEl('#texteditor_sync_scroll input').checked = false;		break;
  2482. 					default:															searchParamDelete('texteditor_sync_scroll');		getEl('#texteditor_sync_scroll input').checked = true;
  2483. 				}																																														break;
  2484. 		}
  2485. 	}
  2486. 	//============================//
  2487. 	function resizeSidebar(e) {	e.preventDefault();																											// ===> RESIZE SIDEBAR/Content Pane
  2488. 		menuClose();
  2489. 		let dir_wrapper = getEl('#dir_wrapper'), startX = e.pageX, window_width = window.innerWidth, sidebar_width = dir_wrapper.offsetWidth;
  2490. 		addClass('body','has_overlay'); 																											// prevent interference from the rest of ui
  2491. 		document.onmousemove = (f) => { f.stopPropagation(); f.preventDefault(); let deltaX = f.pageX - startX;
  2492. 			if ( f.pageX > 230 && f.pageX < window_width - 200 ) { dir_wrapper.style.width = ( sidebar_width + deltaX ) + 'px'; }
  2493. 			scrollThis('#directory_list','.selected',false); 																						// true = instant scroll
  2494. 		};
  2495. 		document.onmouseup = (e) => { e.stopPropagation(); removeClass('body','has_overlay');	document.onmousemove = null;	searchParamSet('width',dir_wrapper.offsetWidth); };
  2496. 	}
  2497. 	//============================//
  2498. 	// ***** SORTING ***** //
  2499. 	function sortAddBorders(sorted) { let item_kinds;																						// ===> ADD SORTING BORDERS
  2500. 		for ( let i = 0; i < sorted.length - 1; i++ ) {
  2501. 			item_kinds = sorted[i].match(/data-kind=\"\w+?\" /)[0];
  2502. 			if ( sorted[i + 1].indexOf(item_kinds) === -1 ) { sorted[i] = sorted[i].replace(/class=\"/,'class="border_bottom '); } 					// add border class
  2503. 		}
  2504. 		return sorted;
  2505. 	}
  2506. 	function sortItems(items_html_arr,sort_type,sort_direction) { 																			// ===> SORT INDEX ITEMS
  2507. 		let sort_id = sort_type.split('_').reverse()[0];
  2508. 		const new_sort = new Intl.Collator( undefined, { numeric: true, sensitivity: 'base' } );
  2509. 		  let sorted = [], aName, bName, aData, bData; 																								// aLevel, bLevel, aKind, bKind;
  2510. 			  sorted = items_html_arr.sort( (a, b) => {																								// sorted items
  2511. 				if ( !/data-name/.test(a) || !/data-name/.test(b) ) { null; } else { aName = a.replace(/(.+?)data-name="([^"]+?)"(.+)/g,'$2');	bName = b.replace(/(.+?)data-name="([^"]+?)"(.+)/g,'$2'); }// get data-name
  2512. 				switch(true) { 																														// aData, bData = size, date, kind, ext, time
  2513. 					case !( new RegExp('data-'+ sort_id) ).test(a) || !( new RegExp('data-'+ sort_id) ).test(b):	break;
  2514. 					default:	aData = a.replace( ( new RegExp( '.+?data-'+ sort_id +'="([^"]+?)".+') ),'$1' );	bData = b.replace( ( new RegExp( '.+?data-'+ sort_id +'="([^"]+?)".+') ),'$1' );
  2515. 				}
  2516. 				switch(true) { 																														// sort 'em!
  2517. 					case sort_direction === 'ascending':		return ( new_sort.compare(aData, bData) === 0 ? new_sort.compare(aName, bName) : new_sort.compare(aData, bData) );	// A-Z
  2518. 					case sort_direction === 'descending':		return ( new_sort.compare(bData, aData) === 0 ? new_sort.compare(bName, aName) : new_sort.compare(bData, aData) );	// Z-A
  2519. 				}
  2520. 			});
  2521. 			return sorted;																															// return sorted items
  2522. 	}
  2523. 	function sortDirListItems(items_html_arr, sort_type, sort_direction) {																	// ===> SORT DIR LIST on click
  2524. 		let  sorted = [], sort_all = items_html_arr, sort_dirs = items_html_arr.filter( item => ( /data-kind=\"dir\"/.test(item) ) ), sort_files = items_html_arr.filter( item => ( !/data-kind=\"dir\"/.test(item) ) );
  2525. 		switch(true) {
  2526. 			case ( /sort_by_size|sort_by_date/.test(sort_type) ) && ( /has_\w+list/.test(getClassNames('#top_body')) ):	return items_html_arr.join('\n');	// don't sort playlists by size/date
  2527. 			case sort_type === 'sort_by_default':																									// if sort default
  2528. 				const sorted_dirs = sortItems( sort_dirs, sort_type, sort_direction ), sorted_files = sortItems( sort_files, sort_type, sort_direction );	// ...sort dirs and files separately
  2529. 				switch(true) {
  2530. 					case sort_direction === 'ascending':																							// if sort ascending...
  2531. 						if ( sorted_files[0] !== undefined && sorted_dirs[0] !== undefined && !/sort_by_kind|sort_by_ext/.test(sort_type) ) {
  2532. 							sorted_files[0] = sorted_files[0].replace(/class=\"/,'class="border_top '); 											// add border class
  2533. 						}
  2534. 						sorted = [...sorted_dirs,...sorted_files];																					//	sorted = sorted_dirs.concat(sorted_files); // ...dirs before files
  2535. 						break;
  2536. 					case sort_direction === 'descending':																							// sort descending...
  2537. 						if ( sorted_dirs[0] !== undefined && !/sort_by_kind|sort_by_ext/.test(sort_type) ) { sorted_dirs[0] = sorted_dirs[0].replace(/class=\"/,'class="border_top '); } // add border class
  2538. 						sorted = [...sorted_dirs,...sorted_files];																					// ...else files before dirs
  2539. 				}
  2540. 				break;
  2541. 			default:	sorted = sortItems( sort_all, sort_type, sort_direction );																	// other sorts (name, size, date): files and dirs together
  2542. 			}
  2543. 		if ( /sort_by_kind|sort_by_ext/.test(sort_type) ) { sorted = sortAddBorders(sorted); }														// add borders for sort by kind and ext
  2544. 		return sorted.join('\n');
  2545. 	}
  2546. 	// ***** END BASIC UI FUNCTIONS ***** //
  2547. 	//============================//
  2548. 	// ***** CONTENT PANE ***** //
  2549. 	//============================//
  2550. 	function contentHeaderButtons(e,id) { eStopPrevent(e);	let incr;																										// ===> CONTENT HEADER BUTTONS		
  2551. 		switch(true) {
  2552. 			case ( /prev|next/.test(id) ):																																			// PREV/NEXT item or audio track
  2553. 				let key = ( /prev_btn|prev_track/.test(id) ? 'ArrowLeft' : /next_btn|next_track/.test(id) ? 'ArrowRight' : null );													// define arrowkey
  2554. 				if ( hasClass('body','focus_content') ) {   focusEl('#content_pane'); } else { getEl('#'+id).parentElement.blur(); }
  2555. 				navigateGetEl([key,false]);																																	break;	// get the next item
  2556. 			case ( /increase|decrease/.test(id) ):	incr = ( hasContent('font_file') ? 1.0625 : 1.125 ); scaleItems(e,incr,id,getContentPaneData());		break;	// SCALE BUTTONS; set scaling increment
  2557. 		}
  2558. 	}
  2559. 	// ===> SHOW INDIVIDUAL CONTENT TYPES
  2560. 	//============================// MEDIA
  2561. 	function showMedia(kind,id,src,bool) { let title = '';
  2562. 		switch(kind) {
  2563. 			case 'audio':
  2564. 				showMedia('close_video');     removeClass('#content_pane','has_audio_error');
  2565. 				switch(true) {
  2566. 					case id === 'content_iframe_file': 																										// clicked iframe audio files
  2567. 						src = decodeURIComponentSafe(src); title = src.slice(src.lastIndexOf('/') + 1);
  2568. 						addClass('#content_pane','has_audio has_iframe_audio'); setAttribute('#content_iframe_utility','src',src.slice(0,-4));		break;
  2569. 					default: 																																// dir_list audio files
  2570. 						switch(true) {
  2571. 							case hasClass('#'+ id,'local'): 																						break;
  2572. 							case bool === 'true':	// bool !== undefined: if from autoLoadItems, just select file (don't add .audio_loaded class)
  2573. 								if ( getEl('.dir.content_loaded') !== undefined ) { addRemoveClassSiblings('.dir.content_loaded','selected'); } 			// select dir.selected instead of media
  2574. 								addClass('#'+ id,'selected');																						break;
  2575. 							default: addRemoveClassSiblings('#'+ id,'audio_loaded selected'); 																// otherwise select loaded media
  2576. 						}
  2577. 						title = getEl('#'+id).querySelector('a').innerText; addClass('#content_pane','has_audio'); removeClass('#content_pane','has_iframe_audio'); src = getEl('#'+id).querySelector('a').getAttribute('href');
  2578. 						cuesheetGet(id,src,'audio');										// get cuesheet
  2579. 				}
  2580. 				autoLoadCoverArt(bool,id);
  2581. 				setAttribute('#audio','src', src );
  2582. 				getEl('#content_audio_title span').innerText = title;
  2583. 				removeClass('#content_audio_playlist_item','has_content');
  2584. 				break;
  2585. 			case 'close_audio':																															// CLOSE AUDIO; pause media; needed in each case, not outside switch
  2586. 				getEl('#content_audio_title span').innerHTML = '';
  2587. 				removeClass('body','is_playing is_paused');					removeClass('.dirlist_item.audio_loaded','audio_loaded');		removeClass('#content_pane','has_audio has_iframe_audio has_audio_error');
  2588. 				removeClass('#content_audio_playlist_item','has_content');	messageSend('iframe','close_iframe_audio');						mediaPlayPause('close');											break;
  2589. 			case 'video':																																// SHOW VIDEO
  2590. 				showMedia('close_audio'); cuesheetGet(id,src,'video'); 		getEl('#content_pane').dataset.content = 'has_video'; 			addClass('#content_video','has_content');	break;
  2591. 			case 'close_video':																															// CLOSE VIDEO; pause media; needed in each case, not outside switch
  2592. 				removeClass('.dirlist_item.video.content_loaded','content_loaded'); removeClass('#content_video','has_content'); removeAttribute('#content_video','src'); removeAttribute('#content_pane','data-content'); mediaPlayPause('close');		break;
  2593. 		}
  2594. 		updateMediaDurations(id,src,kind);
  2595. 	}
  2596. 	//============================// MEDIA PLAYBACK
  2597. 	function mediaGetUpdatedShuffleArray() { 																								// ===> UPDATE TRACKLIST (for shuffle play)
  2598. 		let playlist = [];
  2599. 		Array.from(getEls('.dirlist_item.media:not(.unchecked,.disabled,.audio_loaded,.content_loaded,.selected)')).forEach( el => playlist.push( el.id ) ); // don't include currently selected item
  2600. 		return playlist;
  2601. 	}
  2602. 	function mediaShuffleArray(array) { 																									// ===> SHUFFLE ARRAY: Randomize Shuffle List
  2603. 		for ( let i = array.length - 1; i > 0; i-- ) { const j = Math.floor(Math.random() * (i + 1));  [array[i], array[j]] = [array[j], array[i]]; }  return array;
  2604. 	}
  2605. 	function mediaShuffleListUpdate(id) {																									// ===> UPDATE SHUFFLE LIST
  2606. 		let shuffle_list;
  2607. 		switch(true) {
  2608. 			case !hasClass('body','shuffle_media'): return; 																						// don't shuffle if normal playback
  2609. 			case id !== undefined: 																													// handle checked and unchecked media items: id = checked/unchecked item.id
  2610. 				shuffle_list = getEl('#content_audio').dataset.shufflelist.split(',');																// get the dataset.shufflelist and convert to array
  2611. 				switch(true) {
  2612. 					case hasClass('#'+ id,'unchecked') || ( /audio_loaded|content_loaded/.test(getEl('#'+id).classList.value) ):					// remove items unchecked since shuffle option first selected
  2613. 						shuffle_list.splice(shuffle_list.indexOf(id), 1);  break;
  2614. 					default: shuffle_list.push(id); shuffle_list = mediaShuffleArray( shuffle_list ); 												// else add re-checked items to shufflelist
  2615. 				}
  2616. 				break;
  2617. 			default:	shuffle_list = mediaShuffleArray( mediaGetUpdatedShuffleArray() ); 															// init shufflelist when shuffle option selected
  2618. 		}
  2619. 		getEl('#content_audio').dataset.shufflelist = shuffle_list;
  2620. 		getEl('#shuffle_label').dataset.shufflecount = ' ('+shuffle_list.length+' remaining)';
  2621. 	}
  2622. 	function mediaShuffleGetNextItem() {																									// ===> GET NEXT SHUFFLED ITEM
  2623. 		let shuffle_list = getEl('#content_audio').dataset.shufflelist.split(',');
  2624. 		let shuffled_item_id = shuffle_list.pop(); 																									// get last item in shufflelist for playback
  2625. 		getEl('#content_audio').dataset.shufflelist = shuffle_list;
  2626. 		return shuffled_item_id;
  2627. 	}
  2628. 	function toggleCheckBox(e,id) { let input_el = getEl('#'+id).querySelector('input');  input_el.checked = !input_el.checked; input_el.blur(); }
  2629. 	function toggleChecked(e,id) { e.stopPropagation(); 
  2630. 		let el = getEl('#'+id), input_el = getEl('#'+id).querySelector('input'); input_el.checked = !input_el.checked; el.classList.toggle('unchecked'); mediaShuffleListUpdate(id); 
  2631. 	} 
  2632. 	function toggleAllChecked(e) { e.stopPropagation(); getEls('.dirlist_item.media input').forEach( el => el.click() ); mediaShuffleListUpdate(); }	// ===> TOGGLE ALL MEDIA CHECKBOXES; update shufflelist
  2633. 	function mediaSkip(e,args) {																											// ===> MEDIA SKIP +/-10/30 seconds
  2634. 		let factor, skip;
  2635. 		switch(true) {
  2636. 			case e !== undefined: 		factor = ( e.key   === 'ArrowLeft' ? -1 : 1 ); 	skip = ( e.altKey && e.shiftKey ? 30 : e.altKey ? 10 : null ); break; // from top
  2637. 			case args !== undefined:	factor = ( args[0] === 'ArrowLeft' ? -1 : 1 );	skip = args[1] || 0; break; 								// from iframe
  2638. 		}
  2639. 		const player = ( hasContent('video') ? getEl('#content_video') : getEl('#audio') );
  2640. 		const time = player.currentTime; 																											// get current time
  2641. 		player.currentTime = time + factor*(skip); 																									// set new time
  2642. 	}
  2643. 	function mediaIsPlaying(id) {																												// ===> IS PLAYING; returns true if all conditions are true
  2644. 		switch(true) {
  2645. 			case !isTopWindow() && !hasClass('body','has_quicklook'):	return ( hasClass('body','is_playing') ? true : false );
  2646. 			default: 													return ( id !== undefined && getEl('#'+id).currentTime > 0 && !getEl('#'+id).paused && !getEl('#'+id).ended );
  2647. 		}
  2648. 	}
  2649. 	function mediaPlayPause(task) {																											// ===> PLAY/PAUSE MEDIA
  2650. 		let player_el = ( hasContent('video') ? getEl('#content_video') : getEl('#audio') ), playing = mediaIsPlaying( player_el.id );
  2651. 		switch(true) {
  2652. 			case player_el === null:																											break;
  2653. 			case task === 'close':															player_el.removeAttribute('src');					// nobreak;
  2654. 			case task === 'pause':	case playing === true:									try { player_el.pause(); }	catch(e) { null; } 		break;
  2655. 			case task === 'play':	case playing === false:									try { player_el.play(); } 	catch(e) { null; } 		break;
  2656. 		}
  2657. 		if ( hasContent('iframe_audio') ) { messageSend('iframe','setIframePlayerStatus','',task); }
  2658. 	}
  2659. 	function mediaPlayPrevNextIframeItem() { 											      												// ===> PLAY PREV/NEXT MEDIA TRACK
  2660. 		if ( !isTopWindow() ) { getEl('.dirlist_item.selected.media a').trigger('dblclick'); messageSend('top_body','iframe_play_pause_media'); }	// select and send message to top
  2661.  	}
  2662. 	function mediaPlaybackOptions(e,id) {	e.stopPropagation();																			// ===> AUDIO PLAYBACK OPTIONS (shuffle, loop)
  2663. 		let loop_el = getEl('#loop'), shuffle_el = getEl('#shuffle');
  2664. 		switch(true) {
  2665. 			case id === 'loop':		case id === 'loop_media_files': 	document.body.classList.toggle('loop_media'); break;
  2666. 			case id === 'shuffle':	case id === 'shuffle_media_files':	document.body.classList.toggle('shuffle_media');  mediaShuffleListUpdate(); break;
  2667. 		}
  2668. 		switch(true) { 																																		// change audio checkboxes prop
  2669. 			case id === 'loop_media_files':		( loop_el.checked === true ? loop_el.checked = false : loop_el.checked = true ); 					break;
  2670. 			case id === 'shuffle_media_files':	( shuffle_el.checked === true ? shuffle_el.checked = false : shuffle_el.checked = true );			break;
  2671. 		}
  2672. 		if ( shuffle_el.checked === false ) { getEl('#shuffle_label').dataset.shufflecount = ''; }															// remove shufflecount
  2673. 	}
  2674. 	//============================// PLAYLISTS/FILELISTS
  2675. 	function openPlaylist(file_name,reader,data) { 	// files & reader = open .m3u file; data = m3u.txtfile content// 						// ===> OPEN PLAYLIST
  2676. 		let bool, list_class;
  2677. 		if ( !data.startsWith('#EXTM3U') ) { return; }																						// prevent reading non-playlist files
  2678. 		if ( !/has_\w+list/.test(getClassNames('body') ) ) {						 																// if body does not already have playlist or filelist...
  2679. 			let body_classes = document.body.classList; 																							// ...store original dir_list and body "has_"classes as data
  2680. 			getEl('#directory_list').dataset.dir_list = getEl('#directory_list').innerHTML;		getEl('#directory_list').dataset.body_classes = body_classes.value;	// store the original dir_list and body classes
  2681. 			body_classes.forEach( (body_class) => { if ( body_class.startsWith('has_') ) { removeClass('body', body_class ); } });					// remove media and other body classes
  2682. 		}
  2683. 		file_name = ( file_name !== '' ? file_name : getEl('.dirlist_item.selected.playlist .dirlist_item_name_a').innerText ); 					// get the file name for the title and current_dir_path
  2684. 		getEl('#current_dir_path span').innerHTML = file_name;																						// set sidebar header title
  2685. 		let new_index = buildNewIndex( '', prepPlaylist(data),'','playlist' );																		// build the new dir_list
  2686. 		addClass('body',new_index[1]);																												// add playlist body classes (has_media, has_audio, etc.)
  2687. 		list_class = ( new_index[1].split(' ').every((el) => ['has_audio','has_media','has_video'].includes(el)) ? 'has_playlist' : 'has_filelist' );	addClass('body',list_class);	// set play- or filelist class
  2688. 		if ( /file:/.test(new_index) && !/file:/.test(window_protocol) ) { addClass('body','has_warning'); addClass('#directory_list','local'); showWarning('openPlaylist','warning_local_playlist'); }	// warn local on non-local page
  2689. 		getEl('#directory_list').innerHTML = new_index[0];																							// replace dir_list with prepared playlist
  2690. 		autoLoadItems();				// if autoload media...
  2691. 		scrollThis('#directory_list','.selected',false);    document.title = 'Playlist: '+ file_name;    bool = true;
  2692. 		initEvents();	updateStats(bool);
  2693.  	}
  2694. 	function closePlaylist() { 	// files & reader = open .m3u file; data = m3u.txtfile content// 						// ===> OPEN PLAYLIST
  2695. 		closeContent('audio'); closeContent(); removeClass('body');																					// close all content and remove all body classes
  2696. 		addClass('body',getEl('#directory_list').dataset.body_classes);			 																	// restore original body classes
  2697. 		getEl('head title').innerText = 'Index of '+ window_location; 																				// restore window title
  2698. 		getEl('#current_dir_path span').innerHTML = current_dir_path;																				// restore current_dir_path tilte
  2699. 		getEl('#directory_list').innerHTML = getEl('#directory_list').dataset.dir_list;																// restore original dir_list...
  2700. 		if ( elExists('.dirlist_item.content_loaded') ) { showThis(getEl('.dirlist_item.content_loaded')?.id); }									// reopen selected dirlist item
  2701. 		if ( elExists('.dirlist_item.audio_loaded') )	{ showThis(getEl('.dirlist_item.audio_loaded')?.id); }										// reopen selected dirlist audio item
  2702. 		delete getEl('#directory_list').dataset.dir_list;	delete getEl('#directory_list').dataset.body_classes;									// ...and remove data
  2703. 		initEvents();	updateStats(false);
  2704. 	}
  2705. 	function playlistMake() {																												// ===> MAKE PLAYLIST file from directory files for export as m3u
  2706. 		let items, playlist = [];
  2707. 		let playlist_type = getEl('#make_playlist_form input:checked').id;
  2708. 		switch(playlist_type) {																														// get playlist items according to selected type
  2709. 			case 'media_files_only':	items = getEls('.dirlist_item.media:not(.unchecked)');	break;
  2710. 			case 'audio_files_only':	items = getEls('.dirlist_item.audio:not(.unchecked)');	break;
  2711. 			case 'video_files_only':	items = getEls('.dirlist_item.video:not(.unchecked)');	break;
  2712. 			case 'all_non_media_files':	items = getEls('.dirlist_item.non_media');				break;
  2713. 			case 'all_items':			items = getEls('.dirlist_item'); 						break;
  2714. 			case 'directories_only':	items = getEls('.dirlist_item.dir');					break;
  2715. 			case 'files_only':			items = getEls('.dirlist_item.file');					break;
  2716. 		}
  2717. 		switch(true) {
  2718. 			default:
  2719. 				items.forEach( (item) => { playlist.push( playlistMakeItem(item.id,true) ); });									// make playlist entry for each item
  2720. 				playlist = '#EXTM3U\n'+ playlist.join('\n'); 																	// add playlist header id
  2721. 				saveFile( playlist,'audio/mpeg-url',(getEl('#current_dir_path').innerText).split('/').reverse()[1] +'.m3u' );	// save m3u with default name = current dir name
  2722. 				closeWarning();																									// close warning
  2723. 		}
  2724. 	}
  2725. 	// Make playlist entry for display in title bar
  2726. 	function playlistMakeItem(id,bool) { //*** id = 'content_title' or 'content_audio_title', bool = true --> from playlistMake(), otherwise from playlistShowItem(); ***//
  2727. 		let title, link, duration, full_path = window.location.protocol + window.location.hostname + window.location.pathname;
  2728.  		title = ( hasContent('grid') && id === 'content_title' ? 'Files from: '+ full_path : bool === true ? getEl('#'+id).dataset.name : getEl('#'+id).innerText ); 			// get title txt
  2729.  		switch(true) {																																											// Get link
  2730.  			case bool === true: 				link = getEl('#'+id).querySelector('a').href;																							break;	// get item link for filelists
  2731.  			case hasContent('grid') && id === 'content_title':		link = full_path;																					break;	// grid link = dir path
  2732.  			case id === 'content_title': 		link = ( hasContent('image') ? getAttribute('#content_image','src') : getAttribute('.content_el.has_content','src') );	break;	// content link
  2733.  			case id === 'content_audio_title':	link = getLinkInfo( getAttribute('#audio','src') )[0].trim(); 																			break;	// audio link
  2734.  		}
  2735. 		link = ( link.startsWith('/') ? window.location.protocol +'//'+ link : link );																// fix links without protocols (local files)
  2736. 		link = new URL(link);																														// make new URL from link
  2737. 		link = link.protocol +'//'+ link.hostname + link.pathname;																					// compose link
  2738. 		duration = ( hasContent('video') ? Number.parseInt(getEl('#video').duration) : id === 'content_audio_title' ? Number.parseInt(getEl('#audio').duration) : '' );
  2739. 		return '#EXTINF:'+ duration +','+ title +'\n'+ link +'\n';																					// return composed playlist entry
  2740. 	}
  2741. 	function playlistShowItem(id) {																										// ===> SHOW PLAYLIST ENTRY
  2742. 		switch(true) {
  2743. 			case id === 'close': removeClass('#content_playlist_item,#content_audio_playlist_item','has_content'); getEls('#content_header textarea').forEach(el => el.value = '');	return;
  2744. 			case hasContent('audio_error') && id === 'content_audio_title': closeContent('audio');
  2745. 			case !hasContent():
  2746. 			case hasContent('texteditor'):																	return;
  2747. 		}
  2748. 		let el_id = ( id === 'content_title' ? 'content_playlist_item' : id === 'content_audio_title' ? 'content_audio_playlist_item' : '' );
  2749. 		document.getElementById(el_id).classList.toggle('has_content');
  2750. 		document.getElementById(el_id).querySelector('textarea').value = playlistMakeItem(id);
  2751. 		textareaSelectContent(document.getElementById(el_id).querySelector('textarea').id); 														// add entry to the textarea
  2752. 		document.getElementById(el_id).querySelector('textarea').focus();
  2753. 	}
  2754. 	//============================// CUESHEETS
  2755. 	function cuesheetGet(id,link,kind) { // id = 'content_iframe_file' or 'dir_list.media.id', link = selected.href, kind = audio/video // ===> GET CUE SHEET
  2756. 		if ( id === 'content_iframe_file' ) { return; } 																						// prevent error for iframe files
  2757. 		removeClass('.cuesheet_track_list_container','has_cue_sheet');																			// reset cuesheet container
  2758. 		getEl('#cuesheet_track_list_audio').innerHTML = ''; 																					// empty existing cue sheet track list
  2759. 		let media_file_name = decodeURIComponentSafe(getEl('#'+id).dataset.name);
  2760. 		let cue_file_name = decodeURIComponentSafe(media_file_name).slice(0,media_file_name.lastIndexOf('.')) + '.cuetxt', cue_file_link = '';
  2761. 		let cue_file = getEl('.dirlist_item.code[data-name="'+ cue_file_name +'"'); 															// get the cuesheet id
  2762. 		if ( cue_file !== null ) {
  2763. 			cue_file_link = document.getElementById( cue_file.id ).querySelector('a').href.trim();
  2764. 			getEl('#content_iframe_utility').src = cue_file_link; 																				// set utility iframe src for processing
  2765. 			switch(kind) { 																														// get durations
  2766. 				case 'audio': setAttribute('#cuesheet_track_list_container_audio','data-duration',getEl('#audio').duration); 			break;
  2767. 				case 'video': setAttribute('#cuesheet_track_list_container_video','data-duration',getEl('#content_video').duration);	break;
  2768. 			}
  2769. 		}
  2770. 	}
  2771. 	function cuesheetProcess(cuesheet_text) {																								// ===> PROCESS CUE SHEET
  2772. 		let cuesheet_tracks, track, prepped_track, prepped_track_list = [], track_header, track_id, display_time, index, index_sec, container_id, commands_arr = ['PERFORMER','TITLE','INDEX'], track_command, classes = 'cuesheet_track display_grid background_grey_85 pointer padding_4_6';
  2773. 		cuesheet_text = cuesheet_text.replace(/\t/g,' ');
  2774. 		cuesheet_tracks = ( !cuesheet_text.startsWith('TRACK') ? cuesheet_text.slice(cuesheet_text.indexOf('TRACK ')).split('TRACK ').reverse() : cuesheet_text.split('TRACK ').reverse() );
  2775. 		for ( track of cuesheet_tracks ) { prepped_track = []; track = track.trim().split(/[\n\r]/); track_id = track.shift().split(' ')[0];	// for each track in the cue sheet...
  2776. 			for ( let i = 0; i < commands_arr.length; i++ ) { 																					// and for each command in commands_arr...
  2777. 				for ( track_command of track ) { 																								// and for each command in the track
  2778. 					if ( track_command.match(commands_arr[i]) ) {
  2779. 						track_command = track_command.trim().replace(/^(performer|title|index\s+\d+)\s*/mgi,'').replace(/^('|\"|\&quot;)|('|\"|\&quot;)$/mgi,'');	// prep the displayed track information
  2780. 																																				// format INDEX command; N.B.: time format = mm:ss:ff (ff = frames @ 75fr/sec):
  2781. 						if ( commands_arr[i] === 'INDEX' ) { display_time = track_command.replace(/INDEX\s+\d+\s+/,'');	index = display_time.split(':').reverse();	index_sec = index[0]/75 + index[1]*1 + index[2]*60; }
  2782. 						prepped_track[i] = '<span class="cue_'+ commands_arr[i].toLowerCase() +'">'+ ( track_command.length === 0 ? '—' : track_command ) +'</span>';
  2783. 					}
  2784. 				}
  2785. 			}
  2786. 			prepped_track.unshift(`<li id="cuesheet_item_${track_id}" class="${classes}" data-duration="${index_sec}"><span class="cue_index align_right">${track_id}</span>`);	// add prepped_track prefix html
  2787. 			prepped_track_list.push(prepped_track.join(''));									 												// add prepped_track to prepped_track_list
  2788. 		}
  2789. 		prepped_track_list.pop();		prepped_track_list = prepped_track_list.reverse().join('</li>') +'</li>'; 								// remove mystery empty track item; create prepped track list
  2790. 		track_header = '<li class="cuesheet_track header display_grid cursor_default background_grey_85 border_top border_bottom bold"><span class="cue_track_id"></span><span class="cue_performer">Performer</span><span class="cue_title">Title</span><span class="cue_index align_right" title="mm:ss:ff">Time</span></li>';
  2791. 		switch(true) {
  2792. 			case elExists('.dirlist_item.audio_loaded'):			case hasContent('iframe_audio'): 	container_id = '#cuesheet_track_list_audio';	break;
  2793. 			case elExists('.dirlist_item.video.content_loaded'):	case hasContent('iframe_file'):		container_id = '#cuesheet_track_list_video';	break;
  2794. 		}
  2795. 		getEl(container_id)?.closest('nav')?.classList.add('has_cue_sheet'); getEl(container_id)?.insertAdjacentHTML('beforeend',track_header + prepped_track_list);					// add cue sheet track list to menu
  2796. 		initCuesheetEvents();																																						// init cuesheet event listeners
  2797. 	}
  2798. 	//============================// FONTS
  2799. 	function fontRestoreOptions(id) { // restore font toolbar values after closing previewed glyph with modified options values
  2800. 				getEl('#font_size').value = getEl(id).dataset.scale;		getEl('#text_color').value = getEl(id).style.color;														// restore size and color
  2801. 		switch(true) {																																								// restore text stroke color & width
  2802. 			case id === '#font_file_grid':			
  2803. 				getEl('#text_stroke_width').value = getEl(id).querySelector('svg path').getAttribute('stroke-width')?.replace(/[A-z]+/,'') || '';		
  2804. 				getEl('#text_stroke_color').value = getEl(id).querySelector('svg path').getAttribute('stroke') || '';																			break;
  2805. 			case id === '#font_specimen_viewer':
  2806. 				getEl('#text_stroke_width').value = getEl(id).style.webkitTextStrokeWidth.replace(/[A-z]+/,'');		getEl('#text_stroke_color').value = getEl(id).style.webkitTextStrokeColor;	break;
  2807. 		}
  2808. 	}
  2809. 	function showFont(id,bool,font_grid,link,i,font_items_length) { 				// ===> SET FONT CSS rules or create font grid items (bool === true) // id from gridMakeFontItems(); link = from previewed directory
  2810. 		let font_styles = getEl('#font_styles'), border_class = '', last_item_class = '', display_name,  font_grid_item_info = '', font_grid_item_el = '';
  2811. 		let font_family = ( link !== '' ? link?.slice(link.lastIndexOf('/') + 1,link?.lastIndexOf('.')) : getEl('#'+id).dataset.name );	font_family = decodeURIComponentSafe(font_family);	// get CSS font family
  2812. 		let font_url    = ( link !== '' ? link : getAttribute('#'+ id +' a','href') );													font_url    = decodeURIComponentSafe(font_url);	// get CSS font src
  2813. 		switch(true) {
  2814. 			case bool === false: 																																			// If bool === false, set CSS rules for previewed fonts
  2815. 				font_styles.innerHTML = `@font-face { font-family: "${ font_family }"; src: url("${ font_url }"); }`;														// insert new @font-face rule
  2816. 				addClass('#content_pane','has_font_specimen');
  2817. 				getEl('#font_specimen_viewer').style.fontFamily = '"'+font_family+'"';																						// set content font styles
  2818. 				getEl('#font_specimen_viewer').style.fontSize = getEl('#font_size').value +'em';																			// ""    ""
  2819. 				getEl('#font_specimen_viewer').style.lineHeight = ( Number(getEl('#line_height').value) === 0 ? 1.2 : Number(getEl('#line_height').value) + 1.2 );			// ""    ""
  2820. 				getEl('#font_specimen_viewer').style.letterSpacing = getEl('#letter_spacing').value;																		// ""    ""
  2821. 				getEl('#font_specimen_viewer').style.webkitTextStrokeWidth = getEl('#text_stroke_width').value;																// ""    ""
  2822. 				getEl('#text_color').value = getEl('#font_specimen_viewer').style.color;																					
  2823. 				getEl('#text_stroke_color').value = getEl('#font_specimen_viewer').style.webkitTextStrokeColor;														break;
  2824. 			case font_grid === 'font_grid': 																																// ...else (if bool === true) make grid font items
  2825. 				display_name = font_family;
  2826. 				if ( i === font_items_length - 1 ) { last_item_class = 'border_bottom_x'; }
  2827. 				if ( i > 0 ) { border_class = 'border_top_x'; }
  2828. 				  font_grid_item_info = `<p class="font_grid_item_info margin_0 text_color_default font_size_small line_height_1">${ display_name.toUpperCase() }</p><h2 style=\'font-family: "${ font_family }"\'; class="margin_0 normal"><a class="text_color_default" href="${ font_url }">${ display_name.slice(0,font_family.lastIndexOf(".")) }</a></h2>`;
  2829. 				  font_grid_item_el = `<li class="grid_item font_grid_item ${border_class} ${last_item_class} background_grey_90" data-id="${ id }" data-kind="font">${ font_grid_item_info }</li>`;
  2830. 				if ( getEl('#font_grid_styles').innerHTML.indexOf(font_family) === -1 ) {																	// only add font family style if it isn't already there
  2831. 					getEl('#font_grid_styles').insertAdjacentHTML('beforeend', `@font-face { font-family: "${ font_family }"; src: url("${ font_url }"); }`);
  2832. 				}
  2833. 				return font_grid_item_el;
  2834. 		}
  2835. 		initFontPreviewEvents();
  2836. 	}
  2837. 	function closeFont() {
  2838. 		switch(true) {
  2839. 			case hasContent('iframe_file,iframe_dir'):								showThis( getEl('.dirlist_item.non_media.selected')?.id );								break;	// if iframe item, reopen sidebar dir
  2840. 			case hasContent('font_file_glyph'):																																		// CLOSE FONT_FILE_GLYPH font_specimen_grid
  2841. 				removeClass('#content_pane','has_font_file_glyph');					addClass('#content_pane','has_font_file');
  2842. 				getEl('#svg_container g').style.transform = 'scale(1)';				fontRestoreOptions('#font_file_grid');   												break;	// reset font_scale slider
  2843. 			case hasContent('font_specimen_glyph'):																																	// CLOSE FONT_SPECIMEN_GLYPH
  2844. 				removeClass('#content_pane','has_font_specimen_glyph');				addClass('#content_pane','has_font_specimen');
  2845. 				removeAttribute('#font_specimen_glyph','style');					removeAttribute('#font_specimen_viewer',['data-char','data-unicode_hex']);	
  2846. 				getEl('#font_specimen_glyph').innerText = '';						fontRestoreOptions('#font_specimen_viewer');											break;	// reset font_scale slider
  2847. 			case hasContent('font_file'):											showWarning( 'showFont','close' );														break;	// CLOSE FONT FILE with warning
  2848. 			case getEl('#font_specimen_grid').children?.length > 0:					getEl('#font_specimen_grid').innerHTML = ''; 			getEl('#unicode_char_ranges_select').value = '' ; showContentPaneEl('font'); 	break;
  2849. 			case hasContent('font_specimen'): 										getEl('#content_pane').dataset.content = 'has_null';	getEl('#content_pane').dataset.loaded_id = null; 
  2850. 				removeClass('#content_pane','has_font_specimen has_file');			removeClass('#content_font','has_content');				setContentTitle('close');		break;	// close font
  2851. 			default:	setAttribute('#content_pane','data-content','has_null');	removeClass('#content_pane','has_font_specimen has_font_specimen_glyph has_font_file has_font_file_glyph');	
  2852. 						removeClass('#content_font','has_content'); 				removeAttribute('#content_font','src');					removeAttribute('#font_specimen_viewer','style');
  2853. 						setContentTitle('close'); focusEl('#top_body');																								break;
  2854. 		}
  2855. 	}
  2856. 	function showFontGlyph(e,id) { e?.stopPropagation();																											// ===> SHOW INDIVIDUAL GLYPH
  2857. 		let this_glyph, glyph_viewer, data_glyph_SVG, glyph_name, unicode_dec, unicode_hex, svg_container;
  2858. 		if ( ( e?.type === 'click' || e?.key === 'Enter' ) && /glyph_container/.test(id) ) { removeClass('#font_file_grid .selected','selected'); addClass('#'+id,'selected'); }		// select clicked or
  2859. 		if ( !hasContent('font_file_glyph') && !hasContent('font_specimen_glyph') ) { getEl('#font_size').value = 1; }
  2860. 		switch(true) {
  2861. 			case id === 'close':				case id === 'close_specimen':															closeContent('font');		return;	// close font glyph
  2862. 			case ( /font_specimen/.test(id) ): case hasContent('font_specimen'): case hasContent('font_specimen_glyph'):													// font specimens and font specimen glyphs
  2863. 				this_glyph = getEl('#'+ id);	glyph_viewer = getEl('#font_specimen_viewer');
  2864. 				getEl('#font_specimen_glyph').innerText = String.fromCodePoint(this_glyph.dataset.unicode_dec);																// add glyph to specimen glyph
  2865. 				glyph_name = String.fromCodePoint(this_glyph.dataset.unicode_dec); unicode_dec = this_glyph.dataset.unicode_dec; unicode_hex = this_glyph.dataset.unicode_hex;
  2866. 				removeClass('#content_pane','has_font_specimen');	addClass('#content_pane','has_font_specimen_glyph');
  2867. 				focusEl('#content_pane');	getEl('#content_pane .font_glyph_item.selected')?.scrollIntoView({behavior:"smooth",block:"nearest"});					break;	// hide font_specimen, show font_specimen glyph
  2868. 			case hasContent('font_file'): case hasContent('font_file_glyph'):																								// font files and font file glyphs
  2869. 				this_glyph = getEl('#'+id) || getEl('#font_file_grid .selected');	glyph_viewer = getEl('#font_file_glyph_viewer');
  2870. 				data_glyph_SVG = this_glyph.querySelector('svg').cloneNode(true);																							// get glyph by id, glyph path, & glyph SVG
  2871. 				data_glyph_SVG.setAttribute('viewBox','0 0 50 160'); data_glyph_SVG.style.width = '100%'; data_glyph_SVG.style.height = '100%'; data_glyph_SVG.style.color = getEl('#text_color').value; // set attrs & styles
  2872. 				data_glyph_SVG.classList.remove('invert'); 				data_glyph_SVG.classList.add('overflow_visible');	data_glyph_SVG.querySelector('g').style.transform = 'scale('+ glyph_viewer.dataset.scale +')';
  2873. 				if ( elExists('#svg_container') ) {																															// if a glyph is being shown...
  2874. 					getEl('#svg_container svg').remove(); getEl('#svg_container').insertAdjacentHTML('beforeend',data_glyph_SVG.outerHTML); svg_container = getEl('#svg_container').outerHTML; // get svg_container, add new svg;
  2875. 				} else {																																					// ...and so preserve any added styles
  2876. 					svg_container = '<div id="svg_container" class="display_flex invert position_relative width_100 height_100">'+ data_glyph_SVG.outerHTML +'</div>';		// else create new svg container
  2877. 				}
  2878. 				getEl('#glyph_container')?.remove();																														// remove existing glyph_container
  2879. 				glyph_viewer.insertAdjacentHTML('beforeend','<div id="glyph_container" class="flex_justify_center">'+ svg_container +'</div>');								// add the glyph_container to font_file_glyph_viewer
  2880. 				glyph_name = this_glyph.dataset.glyph_name; unicode_dec = this_glyph.dataset.unicode_dec; unicode_hex = this_glyph.dataset.unicode_hex;
  2881. 				getEl('#svg_container').onmousedown = function(e) { fontGlyphMove(e,'#svg_container') };																	// init fontGlyphMove
  2882. 				removeClass('#content_pane','has_font_file');			addClass('#content_pane','has_font_file_glyph');
  2883. 				focusEl('#content_pane');	getEl('#content_pane .font_glyph_item.selected')?.scrollIntoView({behavior:"smooth",block:"nearest"});					break;	// hide font_file grid, show font_file_glyph
  2884. 		}
  2885. 		glyph_viewer.dataset.glyph_name = glyph_name; glyph_viewer.dataset.unicode_dec = 'Unicode Dec: '+ unicode_dec; glyph_viewer.dataset.unicode_hex = 'Unicode Hex: '+ unicode_hex;
  2886. 	}
  2887. 	function openFontFile(files,reader,bool) {																									// ===> OPEN FONT FILE
  2888. 		getEl('#font_file_viewer').remove();		getEl('#content_font').insertAdjacentHTML( 'beforeend', Content_Font_Viewer );						// reset font_file_viewer
  2889. 		switch(true) {
  2890. 			case files === 'close':																														// close font file
  2891. 				removeClass('body','focus_content');
  2892. 				removeAttribute('#content_pane','data-content'); removeClass('#content_pane','has_font_specimen has_font_specimen_glyph has_font_file has_font_file_glyph');	// remove content_pane attrs and classes
  2893. 				removeClass('#content_font','has_content');																								// remove content_font classes
  2894.  				getEl('#font_file_grid').innerHTML = '';	getEl('#content_title span').innerHTML = '';												// empty font_file_grid and content_title
  2895.  				if ( bool === undefined ) {																												// show previously loaded content or close content, but not if bool
  2896. 					if ( getEl('.dirlist_item.content_loaded') ) { showThis(getEl('.dirlist_item.content_loaded')?.id); } else { showThis('close'); }	// (but not when opening new font file)
  2897. 				}
  2898. 				break;
  2899. 			default:																																	// show font file
  2900. 				if ( !hasContent('font_file') && !/has_\w+list/.test(getClassNames('#top_body')) ) 		{ showThis('close'); }							// close content & hide grids
  2901. 				removeClass('#content_pane','has_font_specimen has_font_specimen_glyph has_font_file_glyph');	addClass('#content_pane','has_font_file');	// content_pane classes
  2902. 				setContentPaneAttrs(files.name,'font','content_font',files.name);
  2903. 				showContentPaneEl('font');
  2904. 				getEl('#font_file_glyph_viewer').dataset.scale = 1;																						// reset font file glyph viewer
  2905. 				makeFontGlyphItems('font_file',reader.result);																							// => make glyph items from font file
  2906. 				getEls('.glyph_container').forEach( el => el.addEventListener('click', (e) => showFontGlyph(e,el.id)));									// init click listener for each glyph
  2907. 				focusEl('#font_file_grid');																												// focus font_file_grid
  2908. 			}
  2909. 	}
  2910. 	function getFontFileInfo(font) {																											// ===> GET FONT INFO
  2911. 		let font_names = font.names, font_info_details = '', name, value;
  2912. 		for ( name in font_names ) {
  2913. 			value = font_names[name].en;
  2914. 			if ( name.endsWith('URL') ) {
  2915. 				let href = ( !value.startsWith('http') ? 'http://'+ value : value);  																	// in case url without protocol is used
  2916. 				value = '<a class="bold" href="'+ href +'" target="_blank">'+ value +'</a>';
  2917. 			}
  2918. 			font_info_details += `<li class="display_none"><span class="col_1 font_info_name align_right"> ${name}: </span><span class="font_info_value">${value}</span></li>`;
  2919. 		}
  2920. 		let font_info = `<ul id="font_info" class="info_list font_size_small border_all margin_0 padding_0 text_color_default background_grey_80 position_fixed z_index_2">     <li class="info_list_header center bold"><span>FONT INFO:${font.names.fullName.en.toUpperCase()}</span></li>     ${font_info_details}     <li class="display_none"><span class="col_1 font_info_name align_right">numGlyphs: </span><span class="font_info_value">${font.numGlyphs}</span></li>     </ul>`;
  2921. 		getEl('#font_file_viewer').insertAdjacentHTML('beforeend',font_info);
  2922. 	}
  2923. 	// FONT GLYPHS
  2924. 	function makeFontGlyphItem(kind,index,glyph) {																					// MAKE FONT GLYPH GRID ITEM; "index" is for font_specimens, "glyph" for font_files
  2925. 		let glyph_svg,glyph_index,glyph_name,glyph_dec,glyph_hex,glyph_path,glyph_boundingbox, tab_order = ( index === 0 ? 'data-tab_order="0"' : ''); // glyph_width,glyph_height,glyph_advancewidth,glyph_leftsidebearing;
  2926. 		switch(kind) {
  2927. 			case 'font_file':
  2928. 				glyph_name = glyph.name;		glyph_index = glyph.index;
  2929. 				glyph_dec = ( glyph.unicode !== undefined ? glyph.unicode : '' ); glyph_hex = ( glyph_dec !== null ? convertDecimal2Hex(glyph_dec,4) : '');	// get glyph dec and hex values
  2930. 				glyph_path = glyph.getPath(0,100,72); glyph_boundingbox = glyph_path.getBoundingBox();
  2931. 				glyph_path = glyph_path.toSVG().replace(/"/g,'\'').replace(/path /g,'path fill=\'currentColor\' ');	// define glyph svg path and escape "
  2932. 				glyph_svg = `<svg xmlns=\'http://www.w3.org/2000/svg\' x=\'0px\' y=\'0px\' viewBox=\'${(glyph_boundingbox.x1 < 0 ? 0 : glyph_boundingbox.x1)} 20 ${Math.abs(glyph_boundingbox.x2)} ${glyph_boundingbox.y2}\' xml:space=\'preserve\' preserveAspectRatio=\'xMidYMid meet\'><g>${glyph_path}</g></svg>`;															break;
  2933. 			case 'font_specimen':				glyph_index = index; glyph_dec = index; glyph_hex = convertDecimal2Hex(index,4);					break;
  2934. 		}
  2935. 		return `<li id="${kind}_glyph_container_${glyph_index}" data-id="glyph_container_${glyph_index}" data-glyph_name="${glyph_name || ''}" ${tab_order} data-unicode_dec="${glyph_dec}" data-unicode_hex="U+${glyph_hex}" class="grid_item font_glyph_item glyph_container flex_justify_center border_right_x border_bottom_x position_relative"><div class="glyph display_block">${glyph_svg || String.fromCharCode(glyph_index)}</div></li>`; 		// return glyph item
  2936. 	}
  2937. 	function makeFontGlyphItems(kind,data,bool) {																					// MAKE FONT GLYPH GRIDS; kind,data === font_specimen,char_block_id or font_file,fontblob
  2938. 		let glyph_items = '', font_file, font_glyphs, font_file_grid = getEl('#font_file_grid'), loop_start, loop_end;
  2939. 		switch(kind) {
  2940. 			case 'font_file':																																// display font_file glyphs
  2941.  				font_file = window.opentype.parse(data);																									// parse font (req opentype.js)
  2942.  				font_glyphs = font_file.glyphs;																												// get font glyphs
  2943. 				getEl('#font_file_glyph_viewer').dataset.font_name = font_file.names.fullName.en;															// add font name to glyph viewer dataset
  2944. 				loop_start = 0, loop_end = font_glyphs.length;																						break;
  2945. 			case 'font_specimen':																															// for displaying unicode char_block ranges
  2946. 				if ( data !== '' ) { loop_start = convertHex2Decimal(getEl('#'+data).dataset.block_start); loop_end = convertHex2Decimal(getEl('#'+data).dataset.block_end) + 1; }	break; // loop char_block start/end range
  2947. 			}
  2948. 			for ( let i = loop_start; i < loop_end; i++ ) { glyph_items += makeFontGlyphItem(kind,i,font_glyphs?.glyphs?.[i]); }							// loop make glyph items for glyph grids
  2949. 			switch(true) {
  2950. 				case bool:																																							return glyph_items;
  2951. 				case data === '':				getEl('#font_specimen_grid').innerHTML = '';																						break;	// close font_specimen_grid
  2952. 				case kind === 'font_file':		getFontFileInfo(font_file);				font_file_grid.insertAdjacentHTML('beforeend',glyph_items);		initFontPreviewEvents();	break;
  2953. 				case kind === 'font_specimen':	getEl('#font_specimen_grid').innerHTML = glyph_items.trim();	initFontPreviewEvents();	focusEl('#content_pane');				break;
  2954. 			}
  2955. 	}
  2956. 	function fontGlyphMove(e,sel) { e.stopPropagation();
  2957. 		let startX = e.pageX, startY = e.pageY, elOffsetLeft = getEl(sel).offsetLeft, elOffsetTop = getEl(sel).offsetTop;
  2958. 		document.onmousemove = function(e) { mouseMove(e,sel,startX,startY,elOffsetLeft,elOffsetTop); }
  2959. 	}
  2960. 	function fontGlyphSave() {																													// ===> SAVE GLYPH SVG
  2961. 		let data = getEl('#svg_container svg').cloneNode(true), file_name = getEl('#font_file_glyph_viewer').dataset.font_name +'_'+getEl('#font_file_glyph_viewer').dataset.glyph_name;
  2962. 		data.setAttribute('viewBox','0 0 120 120'); data.removeAttribute('class'); data.querySelector('g').removeAttribute('style');
  2963. 		saveFile(data.outerHTML,'image/svg+xml',file_name);
  2964. 	}
  2965. 	// FONT UTILITIES
  2966. 	function fontOptions(e,id,value,variant_prop,variant_value) { eStopPrevent(e);	// value sets select el and font-feature-settings; if variant_prop exists, it is used to set font-variant value
  2967. 		let props = {'font_size':'font-size','line_height':'line-height','letter_spacing':'letter-spacing','text_color':'color','text_stroke_width':'-webkit-text-stroke-width','text_stroke_color':'-webkit-text-stroke-color'};
  2968. 		let prop = (variant_prop || props[id] || 'font-feature-settings'), units = ( /font_size|letter_spacing|text_stroke_width/.test(id) ? 'em' : '' ), text_stroke_color, current_stroke_color, fontElId;
  2969. 		switch(true) {																																								// font_toolbar row 1: #font_specimen_variants
  2970. 			// #font_toolbar row 1 items: font_file_viewer
  2971. 			case (/font_variant_select/.test(id)):				setValue('#font_tag_textarea',value);			getEl('#'+id).focus();											break;	// select variants/stylistic sets
  2972. 			case id === 'font_tag_textarea':					// textarea font tags; set corresponding font_variant_select value
  2973. 				switch(true) {
  2974. 					case value === null:						setValue('#font_tag_textarea','');																				return;	// if value === null: reset
  2975. 					case Number(value?.length) < 4:				setValue('#font_variant_select','');																			break;	//
  2976. 					case value?.startsWith('cv'):				setValue('#font_variant_select','cv01');																		break;	//
  2977. 					case value?.startsWith('nalt'):				setValue('#font_variant_select','nalt');																		break;	//
  2978. 					case value?.startsWith('ornm'):				setValue('#font_variant_select','ornm');																		break;	//
  2979. 					case value?.startsWith('salt'):				setValue('#font_variant_select','salt');																		break;	//
  2980. 					case value?.startsWith('ss'):				setValue('#font_variant_select','ss01'); 																		break;	//
  2981. 					case value?.startsWith('swsh'):				setValue('#font_variant_select','swsh');																		break;	//
  2982. 					default:		 							setValue('#font_variant_select',value.slice(0,4));																break;	//
  2983. 				}																																								break;	// focus font_tag_textarea
  2984. 			case id === 'unicode_char_ranges_select':			makeFontGlyphItems('font_specimen',value); 			getEl('#content_font').scroll(0,0);							return;	// unicode chars startsWith
  2985. 			// #font_toolbar row 2 items:
  2986. 			case id === 'font_size':																				scaleFonts(null,value,'font_size');							return;
  2987. 			case id === 'line_height': 			value = Number(value) + 1.2;										if ( value === 1.2 ) { getEl('#'+id).value = 0; }			break;	// line-height; default 1.2
  2988. 			case id === 'letter_spacing':		value = ( Number(value) < 0 ? value/50 : Math.pow(value/50,2) );	if ( value === 0 ) { getEl('#'+id).value = 0; }				break;	// letter-spacing
  2989. 			case id === 'text_color':																				if ( value === null ) { getEl('#'+id).value = ''; value = ''; }		break;	// if value === null: reset
  2990. 			case id === 'text_stroke_width':	current_stroke_color = getEl('#text_stroke_color').value;
  2991. 												text_stroke_color = ( value < 0 ? 'white' : ( current_stroke_color === '' || /white|black/.test(current_stroke_color) ) && value > 0 ? 'black' : current_stroke_color )
  2992. 												getEl('#font_specimen_viewer')?.style.setProperty('-webkit-text-stroke-color',text_stroke_color);
  2993. 												value = Math.abs(Number(value));	if ( value === 0 ) { getEl('#'+id).value = 0; getEl('#text_stroke_color').value = ''; }		break;	// if value === 0: reset
  2994. 			case id === 'text_stroke_color':										if ( value === null ) { getEl('#'+id).value = ''; fontOptions(null,'text_stroke_width',null); }				// if value === null: reset
  2995. 												value = ( getEl('#text_stroke_width').value < 0 ? 'white' : getEl('#text_stroke_color').value !== '' ? getEl('#text_stroke_color').value : 'black' );	break;
  2996. 		}
  2997. 		switch(true) {																																									// determine element(s) to target
  2998. 			case hasContent('font_file_glyph'):		fontElId = ( /text_stroke/.test(id) ? '#svg_container path' : '#svg_container' );						break;	// el = svg_container or svg path
  2999. 			case hasContent('font_file'):				fontElId = ( /text_stroke/.test(id) ? '#font_file_viewer path' : '#font_file_grid' );					break;	// el = svg_container or svg path
  3000. 			case hasContent('font_specimen_glyph'):	fontElId = '#font_specimen_glyph';																		break;
  3001. 			case hasContent('font_specimen'):			fontElId = '#font_specimen_viewer';																		break;
  3002. 		}
  3003. 		switch(true) {																																									// apply style to font element
  3004. 			case hasContent('font_file') && /text_stroke/.test(id):																						// if font_file and text_stroke style...
  3005. 				current_stroke_color = getEl('#text_stroke_color').value;
  3006. 				text_stroke_color = ( getEl('#text_stroke_width').value < 0 ? 'white' : ( current_stroke_color === '' || /white|black/.test(current_stroke_color) ) && value > 0 ? 'black' : current_stroke_color )
  3007. 				prop = ( id === 'text_stroke_width' ? 'stroke-width' : 'stroke' );		getEls(fontElId).forEach( el => el.setAttribute(prop,value + units) );
  3008. 				if ( id === 'text_stroke_width' ) { getEls(fontElId).forEach( el => el.setAttribute('stroke',text_stroke_color) ); }											break;	// set prop on font file svg paths
  3009. 			default:
  3010. 				switch(true) {
  3011. 					case ( /^cv|^ss|salt|swsh|ornm|nalt/.test(value) || id === 'font_tag_textarea' ): 
  3012. 						prop = 'font-feature-settings';		value = '"'+value.slice(0,4) +'" '+ value.slice(4); getEl('#font_tag_textarea').focus();	break;
  3013. 					case props[id] !== undefined:																											break;
  3014. 					case variant_value !== undefined:																value = variant_value;						break;
  3015. 					case value?.length < 4: 																		value = ''; 								break;
  3016. 				}
  3017. 																													getEl(fontElId)?.style.setProperty(prop,value + units);				// default: set style properties
  3018. 		}
  3019. 	}
  3020. 	function fontReset(id) { let el_ids = ['font_tag_textarea','font_size','line_height','letter_spacing','text_color','text_stroke_width','text_stroke_color'], current_font;
  3021. 		switch(true) {
  3022. 			case id === 'reset': 					
  3023. 				setValue('#font_variant_select','');	el_ids.forEach( el_id => getEl('#'+el_id).value = null );																		// default toolbar values
  3024. 				switch(true) {
  3025. 					case hasContent('font_specimen'):																													// reset font_specimen
  3026. 						current_font = getEl('#font_specimen_viewer').style.fontFamily;	getEl('#font_specimen_viewer').removeAttribute('style');  getEl('#font_specimen_viewer').style.fontFamily = current_font;	break;
  3027. 					case hasContent('font_file'): 		getEl('#font_file_grid').dataset.scale = 1;																	// reset font_file
  3028. 						getEls('#font_file_grid, #font_file_grid svg g').forEach( el => el.removeAttribute('style'));	getEls('#font_file_grid svg path').forEach( el => el.removeAttribute('stroke') );			break;
  3029. 				}
  3030. 			default:	if ( id === 'font_size' && hasContent('font_file') ) {																						// reset all font options...
  3031. 							getEl('#font_file_grid').removeAttribute('style'); getEl('#font_file_grid').querySelectorAll('svg g').forEach(function(el) { el.style.transform = 'none' }); getEl('#'+id).value = 1;
  3032. 						} else { 
  3033. 							fontOptions(null,id,null);																																	// or reset individual font options by id
  3034. 						}								
  3035. 		}
  3036. 	}
  3037. 	//============================// GRIDS
  3038. 	function showGrid(id) {																									// ===> SHOW GRID
  3039. 		if ( id !== undefined ) { gridMake(id); }																					// initial make grid items; otherwise, just unhide existing grid (see below)
  3040. 		let selected_ID = ( getEl('.dirlist_item.selected')?.id || undefined);
  3041. 		addClass('#show_grid_btn','has_grid');																						// add class to #show_grid_btn button
  3042. 		setAttribute('#content_pane','data-content','has_grid');																	// set content_pane data-content attribute
  3043. 		removeClass('#content_pane','has_hidden_grid has_dir has_file has_font_specimen');	removeClass('#content_pane div','selected hovered');	// remove classes from grid item; show hidden grid, remove content_pane classes
  3044. 		setContentTitle('','grid');
  3045. 		addClass('#content_pane div[data-id="'+ selected_ID +'"]','selected');											 			// reselect selected grid item
  3046. 		focusEl('#content_grid');	getEl('#content_pane .selected')?.scrollIntoView({behavior:"smooth",block:"nearest"});			// focus grid, scroll into view
  3047. 	}
  3048. 	function closeGrid(id) {																								// ===> CLOSE GRID
  3049. 		switch(true) {
  3050. 			case id === 'hide': 			removeAttribute('#content_pane','data-content'); addClass('#content_pane','has_hidden_grid');	break;	// hide grid, e.g., when viewing a grid item or other item
  3051. 			default:
  3052. 				switch(true) {
  3053. 					case hasContent('font'): case hasContent('image'):									 				showGrid();			break;
  3054. 					default:
  3055. 						removeAttribute('#content_pane','data-content');	removeClass('#content_pane','has_image_grid has_font_grid');				// remove #content_pane classes & data-content attribute
  3056. 						removeAttribute('#content_grid','style');			getEl('#content_grid').innerHTML = '';										// remove #content_grid style & all grid els
  3057. 						removeClass('#show_grid_btn','has_grid');																						// remove #show_grid_btn button class
  3058. 						focusEl('#top_body'); if ( getEl('.dirlist_item.hovered') !== null ) { 
  3059. 							showThis(getEl('.dirlist_item.hovered').id); removeClass('.dirlist_item.hovered','hovered'); } else { showThis(getVisibleElsBySelector('.dirlist_item')[0].id);	// focus sidebar; show 1st sidebar item
  3060. 						} 																																	break; 	
  3061. 				}																																				break;
  3062. 		}
  3063. 	}
  3064. 	function showContentGridItem(e,id,src,kind) { e.preventDefault();  																				// ===> SHOW GRID ITEM
  3065. 		closeGrid('hide');																																	// hide grid
  3066. 		switch(true) {
  3067. 			case elExists('#'+id):				addRemoveClassSiblings('#'+ id,'selected','selected');	getEl('#'+id).click();						break;	// normal grid item display
  3068. 			case !elExists('#'+id):				showThis('',false,true,[src,kind]);																	break;	// show grid items from closed subdirectory
  3069. 		}
  3070. 	}
  3071. 	// ***** IMAGE/FONT GRID SETUP
  3072. 	function gridMakeFontItems(id) {																										// ===> FONT GRID ITEMS
  3073. 		let font_grid_items = '', font_files = ( id !== undefined ? getEls('#'+id) : getEls('.dirlist_item.font') ), new_grid_item, font_items_length = font_files.length;
  3074. 		for ( let i = 0; i < font_items_length; i++ ) {																								// for each font...
  3075. 			new_grid_item = showFont( font_files[i].id, true, 'font_grid','',i,font_items_length );													// make new font_grid_item
  3076. 			font_grid_items += new_grid_item;																										// add it to the font_grid_items
  3077. 		}
  3078. 		return font_grid_items;																														// return font_grid_items
  3079. 	}
  3080. 	function gridMakeImageItems(id) {																										// ===> IMAGE GRID ITEMS
  3081. 		let image_grid_items = '';
  3082. 		let image_files = ( id !== undefined ? getEls('#'+id) : getEls('.dirlist_item.image:not(.ignored)') );
  3083. 		let image_files_length = image_files.length, classes = 'grid_item image_grid_item flex_justify_center border_right_x border_bottom_x';
  3084. 		for ( let i = 0; i < image_files_length; i++ ) {
  3085. 			const this_id = image_files[i].id;
  3086. 			const this_link = image_files[i].querySelector('a').href;
  3087. 			const exts = Item_Kinds.image.filter( ext => !Item_Settings.ignored.includes(ext) ); 													// decide which image files can be displayed
  3088. 			const title_name = this_link.slice(this_link.lastIndexOf('/') + 1);
  3089. 			if ( exts.includes(image_files[i].dataset.ext) ) { 																						// if item ext is in the image extension array...
  3090. 				let item = `<li class="${ classes } background_grey_90" data-ID="${ this_id }" data-index="${ i }" data-kind="image"><a href="${ this_link }"><img src="${ this_link }" title="${ title_name }" loading="lazy" /></a></li>`;																																		// make new image_grid_item
  3091. 				image_grid_items += item;																											// ...add it to the image_grid_items
  3092. 			}
  3093. 		}
  3094. 		return image_grid_items;																													// return image_grid_items
  3095. 	}
  3096. 	function gridMake(id) {	let el, kind;																											// ===> MAKE GRIDS
  3097. 		if ( /rowid/.test(id) ) { el = getEl('#'+id); kind = el.dataset.kind; } else { getEl('#content_grid').innerHTML = ''; } 							// remove previous grid items or make single grid item
  3098. 		removeClass('#content_pane','has_hidden_grid has_image_grid has_font_grid'); 																		// reset content_pane grid classes
  3099. 		switch(true) {																																		// determine which grid type to make
  3100. 			case el !== undefined:
  3101. 				switch(kind) {																																// make single grid items on cmd-click
  3102. 					case 'font': 			getEl('#content_grid').insertAdjacentHTML('beforeend',gridMakeFontItems(id));							break;	// make single font grid item
  3103. 					case 'image': 			getEl('#content_grid').insertAdjacentHTML('beforeend',gridMakeImageItems(id));							break;	// make single image grid item
  3104. 				} break;
  3105. 			case id === 'show_font_grid': 	addClass('#content_pane','has_font_grid');	getEl('#content_grid').innerHTML = gridMakeFontItems();		break;	// make font grid
  3106. 			case id === 'show_image_grid': 	addClass('#content_pane','has_image_grid');	getEl('#content_grid').innerHTML = gridMakeImageItems();	break;	// make image grid
  3107. 			default: 						getEl('#content_grid').innerHTML = gridMakeImageItems() + gridMakeFontItems(); 									// make image and font grid
  3108. 		}
  3109. 		initGridItemEvents();																																// register event watchers for added grid elements
  3110. 	}
  3111. 	// ***** IMAGE/FONT/GLYPH SCALE
  3112. 	function scaleItems(e,incr,id,kind) { addClass('#reload_btn','reset');																													// add reset class to reload button
  3113. 		switch(kind) {
  3114. 			case 'has_grid':	scaleFonts(e,incr,id);		scaleImages(e,incr,id);		break;	// scale grids
  3115. 			case 'has_font': 	scaleFonts(e,incr,id);									break;	// scale glyphs
  3116. 			case 'has_image':	scaleImages(e,incr,id);									break;	// scale glyphs or images and fonts
  3117. 		}
  3118. 	}
  3119. 	function scaleFonts(e,scale,id) { scale = ( scale <= 0 ? (1, getEl('#font_size').value = 1 ) : scale ); let incr = Number(scale).toFixed(4); if ( id === 'decrease' ) { incr = 1/incr; scale = 1/scale }	// ===> SCALE FONTS: +/- buttons or slider
  3120. 		let content_grid = getEl('#content_grid'), font_specimen_viewer = getEl('#font_specimen_viewer'), font_file_glyph, font_file_grid = getEl('#font_file_grid'), value, font_input_value, data_scale, transform_scale, translateY, el_id;
  3121. 		let font_size = parseInt(getComputedStyle(document.body).fontSize).toFixed(4),	fontGetSize = function(el) { return Number.parseFloat(window.getComputedStyle(el).fontSize).toFixed(4); };		
  3122. 		switch(true) {
  3123. 			case hasContent('grid'):								setStyle('#content_grid','font-size', ( fontGetSize(content_grid)/font_size * incr ) +'em'); 		break;	// scale grid font items
  3124. 			// font files
  3125. 			case hasContent('font_file_glyph'):	font_file_glyph = getEl('#font_file_glyph_viewer g');																				// scale font file glyph
  3126. 				data_scale = font_file_glyph.style.transform;	data_scale = Number( data_scale.match(/[\.\d]+/g));   if ( data_scale === 0 ) { data_scale = 1; }					// define data_scale...
  3127. 				switch(true) {
  3128. 					case scale === null: data_scale = 1; font_input_value = 1; break;
  3129. 					case ( /increase|decrease/.test(id) ): 			data_scale = incr * data_scale; 	font_input_value = Math.pow(data_scale,0.2);						break;	// ...for +/- buttons; set #font-size value
  3130. 					default: 										data_scale = ( data_scale >= 1? Math.pow(incr,5) : Math.pow(incr,1.25) );										// ...for #font_size slider
  3131. 				}													font_file_glyph.style.transform = 'scale('+ data_scale +')';											break;	// scale glyph
  3132. 			case hasContent('font_file'):			
  3133. 				if ( /increase|decrease/.test(id) ) { 
  3134. 					scale = ( font_file_grid.dataset.scale === undefined ? scale : Number(font_file_grid.dataset.scale) <= 0 ? 1 : Number(font_file_grid.dataset.scale) + Number(scale) - 1 );  // scale
  3135. 					scale = Number(scale) * Number(incr); 					font_input_value = scale;																							// set slider value
  3136. 				}
  3137. 				transform_scale = ( scale >= 1? Math.pow(scale,4) : Math.pow(scale,1.125) );	translateY = ( Number(scale) < 0.5 ? 0.5 : Number(scale) < 1.5 ? (1 - scale) : -0.5 );		// transform_scale & translateY
  3138. 				font_file_grid.querySelectorAll('svg g').forEach(function(el) { el.style.transform = 'scale('+ transform_scale +') translateY('+ translateY +'em)'; });						// set transform scale & translateY
  3139. 				if ( scale > 0.33 ) {
  3140. 					font_file_grid.style.gridTemplateColumns	= 'repeat(auto-fit, minmax(max(52px,'+ Math.pow(scale,3) * 1.33 +'em ), 1.5fr))';											// scale font file grid cols
  3141. 					font_file_grid.style.gridAutoRows 							= 'minmax(max(52px,'+ Math.pow(scale,3.33) * 1.33 +'em), max-content)';										// scale font file grid rows
  3142. 				}
  3143. 				font_file_grid.dataset.scale = scale;																																break;
  3144. 			// font specimens
  3145. 			case hasContent('font_specimen_glyph'):	el_id = '#font_specimen_glyph';																											// scale font specimen glyph (in vw)
  3146. 				switch(id) {
  3147. 					case 'font_size':																																						// from font_size input slider
  3148. 						if ( incr === null ) { value = 64; } else { value = 64 * Math.pow(incr,3) }	// max value of incr = 64 * 2^3 = 512													// reset if scale is 0
  3149. 						setStyle(el_id,'font-size', value +'vw');			getEl(el_id).dataset.scale = Number(value/64).toFixed(4);												break;
  3150. 					default:																																								// from increase/decrease buttons
  3151. 						getEl(el_id).dataset.scale = Number(getEl(el_id).dataset.scale) * incr;		data_scale = Number(getEl(el_id).dataset.scale);										// update data-scale; define data_scale
  3152. 						value = (64 * data_scale) +'vw';	setStyle(el_id,'font-size',value);		font_input_value = Math.pow(data_scale,0.3333);											// set the font-size using data-scale
  3153. 				}																																									break;
  3154. 			case hasContent('font_specimen'):			el_id = '#font_specimen_viewer';
  3155. 				switch(id) {																																								// scale font specimen
  3156. 					case 'font_size':																																						// from font_size input slider
  3157. 						if ( Number(incr) === Number(0.0000) ) { incr = 1; getEl('#'+id).value = 1; }																						// reset font size
  3158. 						setStyle(el_id,'font-size', ( Math.pow(incr,4) +'em' )); 	getEl(el_id).dataset.scale = Number(incr).toFixed(4);											break;	// set the font size
  3159. 					default:																																								// from increase/decrease buttons
  3160. 						if ( Number(fontGetSize(font_specimen_viewer)) === 0 ) { incr = 1; } else { incr = Number(fontGetSize(font_specimen_viewer)/font_size * incr); }					// reset if scale is 0
  3161. 						getEl(el_id).dataset.scale = incr.toFixed(4);	setStyle(el_id,'font-size', incr.toFixed(4) +'em');
  3162. 						font_input_value = Math.pow(incr,0.25);
  3163. 					}																																								break;
  3164. 		}
  3165. 		if ( (id === 'font_size' && scale === null) || id !== 'font_size' ) { getEl('#font_size').value = font_input_value }																// set #font_size input value
  3166. 		scrollThis('#content_container','#content_font');																																	// scroll content_font
  3167. 	}
  3168. 	function scaleImages(e,incr,id) {																										// ===> ZOOM IMAGES ON CLICK
  3169. 		let content_el = ( elExists('#content_body') && elExists('#content_body > img') ? getEl('#content_body') : getEl('#content_container') );
  3170. 		let this_img = ( elExists('#content_body > img') ? getEl('#content_body > img') : getEl('#content_image') );								// define this_img
  3171. 		let CC_width = Math.round(content_el.offsetWidth),	CC_height = Math.round(content_el.offsetHeight);										// content_container dimensions
  3172. 		let img_width = Math.round(this_img.offsetWidth), img_height = Math.round(this_img.offsetHeight);											// this_img dimensions
  3173. 		let CC_offset, img_offset, percentX, percentY, scrollX, scrollY;
  3174. 		const iframe_delta = ( getEls('#content_body > img').length === 1 ? Number.parseInt(getEl('#content_body').style.padding) : 0 );
  3175. 		switch(true) {
  3176. 			case hasContent('grid'): 		scaleImageGrid(incr,id); break;																			// scale grid images
  3177. 			default:															 																	// scale single images
  3178. 				imageGetDimensions( this_img.src, ( width,height ) => {
  3179. 				switch(true) {
  3180. 					case incr !== undefined && id !== undefined: 																					// scale images by increment
  3181. 						addClass('#content_pane','has_scaled_image'); removeClass('#content_pane','has_zoom_image');								// remove zoom classes in case window resized after zoom
  3182. 						switch(true) {
  3183. 							case id === 'increase':												this_img.style.cssText = `width:${img_width * incr}px; height:auto; max-width:none; max-height:none;`;	break;
  3184. 							case id === 'decrease' && ( img_width >= 1 && img_height >= 1 ):	this_img.style.cssText = `width:${img_width / incr}px; height:auto; max-width:none; max-height:none;`;	break;
  3185. 						}
  3186. 						if ( Math.round(this_img.offsetWidth) >= CC_width ) { getEl('#content_image_container').scrollLeft = ( Math.round( this_img.offsetWidth ) - CC_width )/2; } 			// keep scaled img centered
  3187. 						switch(true) {																																							// keep scaled img centered
  3188. 							case Math.round(this_img.offsetHeight) <= CC_height: getEl('#content_image_container').scrollTop = ( CC_height - Math.round( this_img.offsetHeight ) )/2;	break;
  3189. 							default: getEl('#content_image_container').scrollTop = ( Math.round(this_img.offsetHeight) - CC_height )/2;													break;
  3190. 						}																													break;
  3191. 					default:																														// else zoom single image on click
  3192. 						if ( width <= CC_width && height <= CC_height ) {																			// click to toggle small images between 100% and full size
  3193. 							if ( /100%/.test(this_img.getAttribute('style')) ) { this_img.removeAttribute('style'); } else { this_img.style.width = '100%'; }
  3194. 							removeClass('#content_pane','has_zoom_image has_scaled_image'); 												return;	// no need to set scroll position
  3195. 						}
  3196. 						CC_offset = content_el.getBoundingClientRect(); 		img_offset = this_img.getBoundingClientRect();						// get offsets
  3197. 						percentX = Number((e.pageX - img_offset.left)/img_width).toFixed(2); 	percentY = Number((e.pageY - img_offset.top)/img_height).toFixed(2)	// x,y coordinates of zoom click as % of image width/height
  3198. 						scrollX = (width * percentX) - e.pageX + CC_offset.left - (iframe_delta * width / img_width);								// calculate clicked x-coordinates for full-size image
  3199. 						scrollY = (height * percentY) - e.pageY + CC_offset.top - (iframe_delta * height / img_height);								// calculate clicked y-coordinate for full-size image
  3200. 						removeClass('#content_pane','has_scaled_image'); 																			// in case image scaled already
  3201. 						getEl('#content_pane').classList.toggle('has_zoom_image');
  3202. 						getEl('#content_image_container').scrollTo(scrollX,scrollY);																// scroll to clicked position
  3203. 				}
  3204. 			});
  3205. 			imageSetDimensions();		focusEl('#content_image_container');																		// set image dimensions
  3206. 		}
  3207.  	}
  3208. 	function scaleImageGrid(incr,id) {																										// ===> SCALE IMAGE GRID ITEMS
  3209. 		if ( id === 'decrease' ) { incr = 1/incr; }
  3210. 		let grid_container =  getEl('#content_grid'), grid_items = getEls('.image_grid_item img');
  3211. 		if ( !grid_items?.length ) { return; }
  3212. 		let grid_item_width = 		Number.parseFloat( grid_items[0].offsetWidth,10) * incr;
  3213. 		let grid_item_height =		Number.parseFloat( grid_items[0].offsetHeight,10) * incr;
  3214. 		let grid_item_max_width =	Number.parseFloat( grid_items[0].style.maxWidth,10) * incr;
  3215. 		let grid_item_max_height =	Number.parseFloat( grid_items[0].style.maxHeight,10) * incr;
  3216. 		if ( grid_item_width < grid_item_max_width ) { grid_item_width = grid_item_max_width; }								// don't reduce grid image size on first scale click
  3217. 		if ( grid_item_height < grid_item_max_height ) { grid_item_height = grid_item_max_height; }							// don't reduce grid image size on first scale click
  3218. 		grid_container.style.gridTemplateColumns = 'repeat(auto-fill, minmax('+ (grid_item_width + 16) +'px, auto ) )';						// set grid properties
  3219. 		grid_items.forEach( (el) => { el.style.maxWidth = grid_item_width +'px'; el.style.maxHeight = grid_item_height +'px'; });	// set grid properties
  3220. 		return;
  3221. 	}
  3222. 	function imageGetDimensions(link, callback) { if ( link !== undefined ) { let img = new Image();  img.src = link; img.onload = function() { callback( this.width, this.height ); }; img = null; } }	// GET IMG DIMENSIONS
  3223. 	function imageSetDimensions() { if ( !isTopWindow() ) { return; }																				// ===> SET IMAGE DIMENSIONS; // ignore iframe image
  3224. 		switch(true) {
  3225. 			case hasContent('image'):
  3226. 				imageGetDimensions( getAttribute('#content_image','src'), function( width,height ) {												// imageGetDimensions()
  3227. 					let percentage = (( getEl('#content_image').width/width ) * 100 ).toFixed(1);													// define percentage
  3228. 						setAttribute('#content_title span','data-after',' ('+ width +'px × '+ height +'px) ('+ percentage +'%)' ); 					// set dataset.after for content_title
  3229. 				});																															break;
  3230. 			default: removeAttribute('#content_title span','data-after');	 																		// remove image dimensions
  3231. 		}
  3232. 	}
  3233. 	//============================// SHOW TEXT EDITOR
  3234. 	function showTextEditor(bool) {																									// ===> SHOW TEXT EDITOR; bool === false => hide editor
  3235. 		switch(true) {
  3236. 			case bool === false:	case hasClass('body','has_texteditor'):		removeClass('body','has_texteditor');  focusEl('#top_body');	break;
  3237. 			case !hasClass('body','has_texteditorUI'):							buildTextEditorUI();																// no break; add the text editor UI if needed
  3238. 			default:															addClass('body','has_texteditor');		getEl('#texteditor_txt_pane').focus();		// show editor: add texteditor class, focus texteditor
  3239. 		}
  3240. 	}
  3241. 	function tempHideTexteditor() { getEl('head').insertAdjacentHTML('beforeend','<style id="temp_styles">#text_container{ display:none;}</style>'); }	// ...hide editor UI for link files until formatted_link received from top
  3242. 	// to prevent FOUC for some kinds of content...
  3243. 	function showTexteditorPreview(content) {																							// ===> SHOW TEXTEDITOR PREVIEW
  3244. 		removeClass('#content_body','texteditor_view_raw texteditor_view_html');																// remove classes
  3245. 		addClass('#content_body','is_link texteditor_split_view_false texteditor_view_preview text_editing_enable_false');						// add classes to prevent editing without changing UI_Pref
  3246. 		getEl('#texteditor_preview_pane').innerHTML = content;																					// insert processed text from top
  3247. 		getEl('#temp_styles').remove();																											// show texteditor after hiding it until processed content received
  3248. 	}
  3249. 	//============================// PDF
  3250. 	function showPDF() {																												// ===> SET UP CONTENT_PDF
  3251. 		let pdf_container = `<embed id="content_pdf" class="content_el position_relative border_0" tabindex="0" data-kind="pdf">`;			// replace content_pdf for each pdf
  3252. 		getEl('#content_pdf').remove(); 																										// remove existing content_pdf el
  3253. 		getEl('#content_image_container').insertAdjacentHTML('afterend',pdf_container); 														// add new content_pdf el
  3254. 	}
  3255. 	//============================// LINK FILES
  3256. 	function openLinkFile(e,id) {	eStopPrevent(e);																					// ===> OPEN LINK FILES: on cmd-arrowdown or dblclick (webloc, url)
  3257. 		let link = getEl('#'+id).dataset.link;																																	// get the link
  3258. 		switch(true) {
  3259. 			case link === undefined:																																	break;
  3260. 			case !hasClass('#'+id,'non_local'):		if ( !isTopWindow() ) {	window.location = link; } else { showThis('open_link_file',false,true,[link,'link']); }		break;
  3261. 			default:								window.open(link);																											// else open link file links in new window
  3262. 		}
  3263. 	}
  3264. 	function linkFileProcess() {																									// ===> LINK FILE PROCESS: on "iframe_loaded" message received
  3265. 		let link_item = getEl('.dirlist_item.selected.link'), link_content = link_item?.dataset.html_content || '', regex = /URL\=(.+?)$|<key>URL<\/key>\s*<string\>(.+?)<\/string\>/im;
  3266. 		let link = ( link_content.match(regex)?.[1] || link_content.match(regex)?.[2] ), link_class = '', link_target = '', formatted_link;			// get the link; define link elements
  3267. 		if ( window_protocol === 'file:' && !link.startsWith('file') )	{ getEl('.dirlist_item.selected').classList.add('non_local'); link_class = ' class="non_local"'; link_target = ' target="_blank"'; }
  3268. 		if ( window_protocol !== 'file:' && link.startsWith('file') )	{ getEl('.dirlist_item.selected').classList.add('local'); link_class = ' class="local"'; }
  3269. 		formatted_link = '<a id="link_file_01" href="'+ link +'"'+ link_class + link_target +'>'+ link +'</a>';									// assemble formatted link
  3270. 		link_item.dataset.link = link;																											// set data-link on sidebar item
  3271. 		link_item.dataset.html_content = null;																									// remove data-html_content
  3272. 		messageSend('iframe','show_texteditor_preview','',formatted_link);																		// send formatted link to iframe for display
  3273. 	}
  3274. 	//============================// DIRECTORY SOURCE
  3275. 	function showDirectorySource(link) {																									// ===> SHOW DIRECTORY SOURCE
  3276. 		switch(true) {
  3277. 			case hasClass('body','has_directory_source'):		removeClass('body','has_directory_source'); 			showThis(getEl('.dirlist_item.non_media.selected').id); break; 				// close if open
  3278. 			default: addClass('body','has_directory_source');	showThis('show_directory_source',false,true,[(link || window_location)]); setAttribute('#content_pane','data-loaded','loaded'); 	// else show directory source
  3279. 		}
  3280. 	}
  3281. 	function openSidebarInContentPane() { showThis('open_sidebar_in_content_pane',false,true,[window_location,'dir']); addClass('#top_body','open_sidebar_in_content_pane'); }			// ===> OPEN SIDEBAR IN CONTENT PANE
  3282. 	function openInTextEditor() {																											// ===> OPEN IN TEXT EDITOR
  3283. 		let html = getEl('.dirlist_item.htm.content_loaded').dataset.html_content;
  3284. 		showTextEditor(true);
  3285. 		if ( html !== undefined ) { getEl('#texteditor_txt_pane').value = html; getEl('#texteditor_preview_pane').value = html; getEl('#texteditor_html_pane').value = html; }	// set previewed text
  3286. 		getEl('#open_in_texteditor')?.blur();
  3287. 	}
  3288. 	// END SHOW INDIVIDUAL CONTENT TYPES
  3289. 	//============================// AUTOLOAD CONTENT
  3290. 	function autoLoadItems() {																									// ===> AUTOLOAD FILE: index files or files from the file shortcut list
  3291. 		let selected_el = getEl('.dirlist_item.dir[id="rowid-'+ Number(getCurrentUIPref("selected")) +'"]');
  3292. 		switch(true) {
  3293. 			case ( selected_el !== null && isTopWindow() && getSearchParams().has('selected') ): 			showThis(selected_el.id); 	break;	// select from searchParam; prevents being overridden by autoload media
  3294. 			case ( getCurrentUIPref('autoload_index_files') !== 'false' && elExists('.dirlist_item.file.htm a[href*="/index."]') ): 			// load index file
  3295. 				showThis( getEl('.dirlist_item.file.htm a[href*="/index."]').closest('.dirlist_item').id );								break;
  3296. 			case selected_el !== null && selected_el.classList.contains('local'):	case !isTopWindow():								break;	// do nothing for local files or iframes
  3297. 			case getSearchParams().has('file'): { 																								// load files (from bookmark or url)
  3298. 					let file_name = decodeURIComponentSafe(getCurrentUIPref('file'));
  3299. 					let file = Array.from(getEls('.dirlist_item.file')).filter ( el => el.dataset.name === file_name );
  3300. 					if ( file[0] !== undefined ) { showThis( file[0].id ); }
  3301. 					searchParamDelete('file');
  3302. 				}																														break;
  3303. 			case hasClass('body','has_video'):	getEl('video').volume = '0.5';																	// video; set video volume
  3304. 				if ( getCurrentUIPref('media_autoload') === 'true' && !hasClass('body','has_audio') ) { showThis(getEl('.dirlist_item.video')?.id ); break; }	// load video only if no audio
  3305. 			case hasClass('body','has_audio'):	getEl('audio').volume = '0.5';																	// audio; set audio volume
  3306. 				if ( getCurrentUIPref('media_autoload') === 'true' ) { showThis(getEl('.dirlist_item.audio')?.id ); }					break;	// load audio
  3307. 			case selected_el !== null:														showThis( selected_el.id,false,true ); 		break;
  3308. 		}
  3309. 		if ( getEl('.content_el.has_content') === null ) { getEl('#content_pane').dataset.content = 'has_null'; }
  3310. 		if ( selected_el !== null ) { scrollThis('#directory_list','.selected'); }
  3311. 	}
  3312. 	function getImageNames(id) {																														// ===> GET IMAGE NAMES (for cover art)
  3313. 		let images = getEls('.dirlist_item.image'), image_names = [], image_name, subdir_prefix;
  3314. 		if ( id.includes('_') ) { 
  3315. 			subdir_prefix = RegExp("^"+id.slice(0,id.lastIndexOf('_') + 1),'m');    images = Array.from(images).filter( image => subdir_prefix.test(image.id) ); 			// filter images by subdir of selected item
  3316. 		}
  3317. 		for ( let image of images ) { 
  3318. 			if ( image.id.split('_').length === id.split('_').length ) {																										// if audio and found image in same dir level...
  3319. 				image_name = image.dataset.name;    image_name = image_name.slice(0,image_name.lastIndexOf('.') );    image_names.push( {'id':image.id,'name':image_name} );	// get image name w/o extension, add to image_names
  3320. 			}
  3321. 		}
  3322. 		return image_names;
  3323. 	}
  3324. 	function getCoverArtID(id) {																														// ===> GET COVER ART ID
  3325. 		let cover_art_id, match, exact_match, cover_names = ['cover','front','album','jacket','sleeve','cd','disc','insert','liner','notes'];
  3326. 		let selected_audio_name = ( getEl('.file.audio.selected')?.dataset.name || undefined );	// is there an image file with the same name?
  3327. 		if ( selected_audio_name !== undefined ) { selected_audio_name = selected_audio_name.slice(0,selected_audio_name.lastIndexOf('.'));	cover_names.unshift(selected_audio_name); }	// prep the name & add to cover names
  3328. 		const image_names = getImageNames(id);																												// get names of all image files
  3329. 		if ( image_names?.length === 0 ) { closeContent('image'); return; }															// close existing image if no cover art found
  3330. 		for ( let cover_name of cover_names ) { 																											// test available image names against cover names
  3331. 			exact_match = image_names.filter( el => el.name === cover_name );	match = image_names.filter( el => el.name.indexOf(cover_name) > -1 ); 		// check for exact and partial matches
  3332. 			switch(true) {
  3333. 				case exact_match.length > 0:	return cover_art_id = exact_match[0].id;																	// if exact match, return
  3334. 				case match.length > 0:			return cover_art_id = match[0].id;																			// else return first match
  3335. 			}
  3336. 		}
  3337. 		if (cover_art_id === undefined ) { return cover_art_id = image_names[0].id; } 																		// if no matches, return first image id
  3338. 	}
  3339. 	function autoLoadCoverArt(bool,id) { 																											// ===> AUTOLOAD COVER ART if dir contains audio & images
  3340. 		if ( bool === false || !isTopWindow() || !hasClass('body','has_images') || !hasClass('body','has_audio') ) { getEl('#content_pane').dataset.content = 'has_null'; return; } // do nothing if no audio or images
  3341. 		let cover_ID = getCoverArtID(id), selected_ID = ( getCurrentUIPref('selected').length > 0 ? 'rowid-'+ getCurrentUIPref('selected') : undefined);
  3342. 		if ( selected_ID !== undefined && typeof selected_ID === 'number' ) { removeClass('.dirlist_item.media','selected'); addClass('#'+selected_ID,'selected'); }
  3343. 		if ( cover_ID !== undefined ) { showThis(cover_ID,false,true,[getEl('#'+cover_ID).querySelector('a').href,'autoloadcoverart']); } 					// close other content, show cover art, reset .selected class
  3344. 	}
  3345. 	//============================//
  3346. 	// ***** MAIN SHOW CONTENT FUNCTIONS ***** //
  3347. 	//============================//
  3348. 	// LINKS, SEARCH PARAMS, AND QUERIES
  3349. 	function makeSrcSearchParams(kind) {																									// ===> GET LINK QUERIES
  3350. 		let query_str = '', params;
  3351. 		const makeSearchParams = (params,query_str) => { query_str = new URLSearchParams(); for ( let param of params ) { query_str.append(param,getCurrentUIPref(param)); } return query_str; }	// ===> MAKE SEARCH PARAMS
  3352. 		switch(true) {
  3353. 			case ( /audio|font|image|video|htm/.test(kind) ):											 									break;	// no query_str for audio, fonts, images, video, or htm
  3354. 			case kind === 'show_directory_source':								query_str = '?&show_directory_source=true';					break;	// view directory source
  3355. 			case kind === 'pdf':												query_str = '#view=fitB&scrollbar=1&toolbar=1&navpanes=1';	break;	// query_str for pdfs
  3356. 			case ( /text|markdown|code|other|link/.test(kind) ):																					// editable text files (including dot and plaintext files ["other"])
  3357. 				params = ['theme','text_editing_enable','texteditor_view','texteditor_split_view','texteditor_sync_scroll'];						// define array of required params for text editing
  3358. 																				query_str = '?'+ makeSearchParams(params).toString();		break;	// compose query_str for text files
  3359. 			case ( /app|dir/.test(kind) ):										
  3360. 				params = ['sort_by', 'sort_direction', 'show_details', 'show_image_thumbnails', 'show_image_thumbnails_always', 'show_large_image_thumbnails', 'show_numbers', 'use_custom_icons', 'show_invisibles', 'show_ignored_items', 'ignore_ignored_items', 'alternate_background', 'theme', 'media_play_all'];				
  3361. 				if (getSearchParams().has('ui_font')) {params.push('ui_font');}	query_str = '?'+ makeSearchParams(params).toString();		break;	// define array of params for dirs; compose query_str for dirs 
  3362. 		}
  3363. 		return query_str;																															// return query_str
  3364. 	}
  3365. 	//============================// DIRS & SUBDIRS
  3366. 	function dirOpen(args) {	// args: [dir.selected.id,dir.selected a.href]																// ===> OPEN DIR (dirs only): update selected and history searchParam in querystring
  3367. 		const updateHistory = function(id) { let id_arr = id.split('_'); id_arr = id_arr.map(el => el.split('-')[1] ); return id_arr.reverse().join('+'); }	// get numerical part(s) of selected dir/subdir id
  3368. 		let item = document.getElementById(args[0]), history = updateHistory(args[0]), searchParams = getSearchParams();							// get selected item, history, and searchParams object
  3369. 		if ( item.classList.contains('dir') && item.classList.contains('invisible') && item.classList.contains('ignored') ) { return; } 			// don't attempt to open ignored invisible dirs (chiefly system dirs)
  3370. 		searchParams.delete('selected');																											// delete 'selected' searchParam
  3371. 		history = ( searchParams.has('history') ? history +'+'+ searchParams.get('history') : history );	searchParams.set('history',history);	// configure and set 'history' searchParam
  3372. 		window.location = args[1] +'?'+ searchParams.toString().replace(/%2B/g,'+');																// set the window location, replacing encoded + sign.
  3373. 	}
  3374. 	function subDirOpen(parent_id) { 																										// ===> OPEN SUDIRECTORY
  3375. 		let parent_el = document.getElementById(parent_id), parent_link = parent_el.querySelector('a').href, level = Number(parent_el.dataset.level) + 1, body_id = document.body.id;	// define subdir level
  3376. 		let content_iframe_utility_src = parent_link + makeSrcSearchParams('dir') + '&parent_id='+ parent_id +'&subdirectory=true&level='+ level +'&body_id='+ body_id;					// assemble src link for utility_iframe
  3377. 		setAttribute('#content_iframe_utility','src',content_iframe_utility_src);																	// set src for utility_iframe (which processes dir & sends it back to top)
  3378. 		parent_el.classList.add('dirlist_subdir_loading'); 																						// removed when iframe_utility sends loaded message with subdir data
  3379. 	}
  3380. 	function subDirClose(subdir_id) {																										// ===> CLOSE SUBDIRECTOY
  3381. 		if ( !elExists('.dirlist_item.has_subdirectory') ) { return; }
  3382. 		let classes = [{ font:'has_fonts'},{image:'has_images'},{media:'has_media'}];																// if no items with these classes found, remove the body class
  3383. 		removeClass('#'+subdir_id,'has_subdirectory');
  3384. 		getEls('.dirlist_item').forEach( (el) => { if (el.id.startsWith(subdir_id + '_')) { el.remove(); } });										// remove all items whose id begins with subdirectory parent id
  3385. 		classes.forEach ( (item) => { let key = Object.keys(item).toString(); if ( !elExists('#directory_list li.'+ key)) { removeClass('body',item[key].toString()) } });
  3386. 		if ( !elExists('.dirlist_item.selected') ) { getEl('#'+ subdir_id).classList.add('selected'); }												// select closed dir if no other selected item exists
  3387. 		updateStats(false);
  3388. 	}
  3389. 	function subDirOpenClose(e,id) { if ( e !== null ) { eStopPrevent(e); e.stopImmediatePropagation();  }									// ===> OPEN CLOSE SUBDIRECTORY; e === null when opening multiple subdirs
  3390. 		let parent_el = getEl('#'+id);		removeClass('body','has_menu_stats');
  3391. 		switch(true) {
  3392. 			case ( parent_el.querySelector('.name') !== null && /\.trashes|\.temporaryitems|\.spotlight-v\d+/.test(parent_el.querySelector('.name').dataset.name ) ):
  3393. 				parent_el.classList.remove('dirlist_subdir_loading');																	break;
  3394. 			default: if ( parent_el.classList.contains('has_subdirectory') ) { subDirClose(id); } else { subDirOpen(id); }	// if ( e !== null ) { showThis(id,true,false); } // select parent dir	// open/close the subdir
  3395. 		}
  3396. 	}
  3397. 	function subDirInsert(args) {	// args = [items,classes,parent_id]; message received: add the subdirectory to the dir_list, update stats, check for additional selected dirs
  3398. 		let parent_item, source_el;
  3399. 		if ( !elExists('.dirlist_item.dirlist_subdir_loading') ) { return; } else { parent_item = document.getElementById(args[2]); }				// select loading dir by id (args[2])
  3400. 		parent_item.classList.remove('dirlist_subdir_loading');	parent_item.classList.add('has_subdirectory');									// remove "loading" class, add "has_subdirectory" class
  3401. 		parent_item.insertAdjacentHTML('afterend',args[0]);																							// insert subdir items
  3402. 		if ( getCurrentUIPref('show_image_thumbnails') === 'true' ) { uiPrefImgThumbsToggle('true'); }
  3403. 		updateStats(true);																															// update stats
  3404. 		['has_fonts','has_images','has_media','has_audio'].forEach( (subdir_class) => { if ( args[1].split(' ').includes(subdir_class) ) { addClass('body',subdir_class) } });	// add new body classes
  3405. 		initDirListEvents();	initIframeEvents();																									// init dir_list event listeners
  3406. 		if ( elExists('.dir.selected:not(.has_subdirectory)') && parent_item.classList.contains('selected') ) {		// open multiple selected subdirs, but don't open selected if current item is not selected
  3407. 			subDirOpenClose(null,getEl('.dir.selected:not(.has_subdirectory)').id);									// i.e., allow unselected dirs to be opened by icon click without also opening selected dirs
  3408. 		}
  3409. 		if ( isTopWindow() ) {															// reselect current content (audio or content_pane) if it was originally in newly-reopened subdirectory:
  3410. 			if ( /media/.test(args[1]) ) { 												// autoload media from new subdirs, if no media or other content currently loaded
  3411. 				if ( !hasContent() ) { showThis(getEl('.dirlist_item.media[id^="'+ parent_item.id +'"]').id); }
  3412. 			}
  3413. 			if ( !hasContent('null') ) {
  3414. 				source_el = getEl('#'+ getEl('#content_pane').dataset.loaded_id); 																		// get content_el by content_source
  3415. 				if ( source_el !== null ) {
  3416. 					removeClass('.dirlist_item.non_media.selected,.dirlist_item.non_media.content_loaded','selected content_loaded'); source_el.classList.add('selected','content_loaded');
  3417. 				}
  3418. 			}
  3419. 		}
  3420. 	}
  3421. 	//============================//
  3422. 	// FOCUS ELS
  3423. 	function focusEl(sel,e) {																															// ===> FOCUS CONTENT
  3424. 		let content_pane_data = getContentPaneData(), content_el_id = ( 'content'+ content_pane_data?.slice(3) || '' ), bool = false, incr = 1;
  3425. 		sel = ( sel === null || sel === undefined ? '#top_body' : !sel.startsWith('#') ? '#'+ sel : sel );														// enforce correct sel format
  3426. 		menuClose();	document.activeElement.blur();																											// close menus, blur active element
  3427. 		switch(true) {
  3428. 			case sel === '#top_body':	case sel === undefined:																									// focus sidebar
  3429. 				switch(true) {
  3430. 					case isTopWindow():  	removeClass('body','focus_content');   getEl(sel).focus();    scrollThis('#directory_list','.selected');	break;
  3431. 					case !isTopWindow():  messageSend('top_body','focus_top'); 																break;
  3432. 				}
  3433. 				break;
  3434. 			case sel === '#content_iframe':	
  3435. 				switch(true) {
  3436. 					case isTopWindow(): 				addClass('body','focus_content');	getEl('#content_iframe').focus();
  3437. 						if ( e !== undefined && e.key === 'Tab' ) {
  3438. 							if ( e.shiftKey ) { bool = true; incr = -1; }
  3439. 							switch(true) {
  3440. 								case hasContent('dir'):									messageSend('iframe','iframe_navigation','',[e.key,bool]);									break;
  3441. 								case hasContent('code,htm,markdown,text,other,link'):	messageSend('iframe','navigateTabKeyFocus',null,['texteditor',incr]);	break;
  3442. 							}
  3443. 						}																																											break;
  3444. 					case !isTopWindow():	 quickLookThis('close');			messageSend('top_body','focus_iframe');														break;
  3445. 				}
  3446. 				break;
  3447. 			case sel === '#content_pane': 	 break;	// <-- test and clean this    focusEl\('#content_pane
  3448. 			case sel !== '#top_body': 																												// All other sel
  3449. 				addClass('#top_body','focus_content'); removeClass('body','is_blurred');
  3450. 				switch(true) {																																// switch according to content_pane_data
  3451. 					case content_pane_data === undefined && isTopWindow():														removeClass('body','focus_content');	document.body.focus();	break;	// don't focus undefined content
  3452. 					case hasContent('font'):
  3453. 						getEl(sel)?.focus();
  3454. 						if ( !hasContent('font_specimen_glyph') && !hasContent('font_file_glyph') ) { removeClass('#content_font .selected','selected'); }
  3455. 						switch(true) {
  3456. 							case sel === '#font_file_glyph_container_0': 		addClass(sel,'selected'); scrollThis('#font_file_grid','.selected'); 		getEl(sel)?.focus();		break;
  3457. 							case sel === '#font_specimen_glyph_container_0':	addClass(sel,'selected'); scrollThis('#font_specimen_grid','.selected');		break;
  3458. 						}
  3459.  
  3460. 						switch(true) {
  3461. 							default: getEl(sel)?.focus();									break;
  3462. 							case sel === '#font_toolbar': 												getEl(sel)?.focus();									break;
  3463. 							case e?.key === 'Tab' || sel === '#font_specimen_1':													getEl('#font_specimen_1')?.focus(); 					break;
  3464. 							}																																break;
  3465. 					case hasContent('grid,image,video,pdf'): 						document.getElementById(content_el_id).focus();		break;
  3466. 					default: 																			getEl(sel)?.focus();
  3467. 				}
  3468. 				break;
  3469. 		}
  3470. 	}
  3471. 	//============================//
  3472. 	// SELECT DIR LIST ITEMS
  3473. 	function selectThisItem(id,bool) {	let el = getEl('#'+id), kind = ( el?.dataset?.kind ?? null ); //, id_arr;							// ===> SELECT THIS on click and set classes for content_pane; bool
  3474. 		switch(true) {
  3475. 			case id === 'close':	case getEl('#'+id) || id === 'open_sidebar_in_content_pane':									return;
  3476. 			case el === null:																										break;
  3477. 			case kind === 'audio':																											// audio: add/remove selected class
  3478. 				removeClass('.audio','selected');	el.classList.add('selected');
  3479. 				if (!isTopWindow() ) { removeClass('.non_media','selected content_loaded'); }										break;	// iframe dirlists
  3480. 			default: 																														// select dir_list item
  3481. 				removeClass('body','has_directory_source');
  3482. 				addRemoveClassSiblings('#'+ id +':not(.audio)','selected content_loaded');													// remove classes from siblings, but leave .audio with playing
  3483. 		}
  3484. 		if ( !/audio/.test(kind) && !/grid|/.test(id) ) { addRemoveClassSiblings('#'+ id,'content_loaded','content_loaded'); }	// only remove siblings content_loaded class and change content_pane data-source if not audio
  3485. 		if ( /audio|video/.test(kind) ) { updateMediaDurations(id,getEl('#'+id).querySelector('a').href,getEl('#'+id).dataset.kind); }
  3486. 		if ( /image/.test(kind) && getCurrentUIPref('show_image_thumbnails') === 'true' && getCurrentUIPref('show_image_thumbnails_always') === 'false' ) { loadImageThumbnail(id); }	// load thumbnail if image_count > 2000
  3487. 		if ( bool !== false ) { scrollThis('#directory_list','.selected'); }																			// bool = false from autoloadcover art
  3488. 	}
  3489. 	function selectMultipleItems(e,id) { e.preventDefault();																							// ===> SELECT MULTIPLE ITEMS
  3490. 		let el = ( id !== undefined ? getEl('#'+id) : null), els, kind = ( el?.dataset.kind || 'dir' );
  3491. 		if ( elExists('#content_grid div[data-id="'+id+'"]') ) { return }																				// don't add items that are already in grid
  3492. 		switch(true) {
  3493. 			case e.key === 'a':	e.preventDefault();																										// cmd-A
  3494. 				if ( isTopWindow() ) { closeContent(); }
  3495. 				kind = ( getEls('.dirlist_item.dir.selected,.dirlist_item.app.selected,.dirlist_item.image.selected,.dirlist_item.font.selected')[0]?.dataset.kind || 'dir');
  3496. 				els = getEls('.dirlist_item.'+kind);	els?.forEach( el => el.classList.add('selected') );
  3497. 				if ( /image|font/.test(kind) ) { showGrid('show_'+kind+'_grid'); }																break;	// show grid of fonts/images
  3498. 			case ( /image|font/.test(kind) ) && !el.classList.contains('selected') && isTopWindow():
  3499. 				showGrid(id);
  3500. 							// select item
  3501. 													break;	// makes font/image grids
  3502. 			case ( /dir|app/.test(kind) ):	removeClass('.dirlist_item.file.selected','selected'); removeClass('.dirlist_item.content_loaded','content_loaded'); el.classList.add('selected');	break;	// select dirs
  3503. 			case ( /code|htm|markdown|text/.test(kind) ) && isTopWindow():																				// text
  3504. 				removeClass('.dirlist_item.dir.selected','selected'); removeClass('.dirlist_item.dir.content_loaded','content_loaded');					// deselect dirs
  3505. 				el.classList.add('selected');																											// select item
  3506. 				break;
  3507. 		}
  3508. 	}
  3509. 	//============================//
  3510. 	// ===> SHOW CONTENT FUNCTIONS
  3511. 	function openFiles(e,id) { let funcName = id; // id/funcName === 'open_font' or 'open_playlist'
  3512. 		switch(e.type) {
  3513. 			case 'click':
  3514. 				switch(true) {												// These cases are only for when a playlist or font file is already open (check for edited content_iframe...)
  3515. 					case (/has_\w+list/.test(getClassNames('body') )):		e.preventDefault(); showWarning(funcName,'close_playlist');			break;	// showWarning('openFile');
  3516. 					case hasContent('font_file'): 							e.preventDefault(); showWarning(funcName,'close_font');				break;	// showWarning('openFile');
  3517. 				}																																break;
  3518. 			case 'change':  																	openFile([e,id]);								break;
  3519. 		}
  3520. 	}
  3521. 	// ===> SET CONTENT TITLE
  3522. 	function setContentTitle(id,kind,file_name,src,bool) { 																						// ===> SET CONTENT TITLE
  3523. 		let title_text = '', selected_item = getEl('.dirlist_item.selected'), selected_link, content_link, content_link_info = getLinkInfo(src);
  3524. 		let title_span = ( kind === 'has_audio_error' ? getEl('#content_audio_title span') : getEl('#content_title span') );
  3525. 		switch(true) {
  3526. 			case id === 'close': 											removeAttribute('#content_title span','data-after');				break;
  3527. 			default:
  3528. 				selected_link =	( selected_item !== null ? decodeURIComponentSafe( selected_item.querySelector('a').pathname ).trim() : '' );			// get selected item link
  3529. 				content_link =	( content_link_info !== undefined ? decodeURIComponentSafe( content_link_info[0] ).trim() : '' );						// get content link
  3530. 				switch(true) {
  3531. 					case kind === 'has_audio_error':						title_text = "Audio file not found";								break;	// audio error title
  3532. 					case kind === 'content_error':							title_text = "File not found";										break;	// content error title
  3533. 					case kind === 'grid':									title_text = current_dir_path;										break;	// grid title
  3534. 					case selected_link !== content_link && bool !== false:																				// nav unsynced iframe items and...
  3535. 						try { title_text = decodeURIComponentSafe(content_link_info[8]) } catch(error) { title_text = content_link; }			break;	// ...error pages
  3536. 					default: 												title_text = file_name; 													// nav synced iframe items
  3537. 				}
  3538. 				title_text = title_text?.split('/').join('/<wbr>')?.split('_').join('_<wbr>');				 											// allow nice line breaks in title
  3539. 				if ( kind === 'image' ) { imageSetDimensions(); }																						// show images; set image dimensions
  3540. 		}
  3541. 		if ( title_span !== null ) { title_span.innerHTML = title_text; }																				// set title text
  3542. 	}
  3543. 	function showContentPaneEl(id) { setAttribute('#content_pane','data-content','has_'+id); addClass('#content_'+id,'has_content'); getEl('#content_title span').innerHTML = getAttribute('#content_pane','data-loaded_id'); }
  3544. 	function setContentPaneAttrs(id,kind,content_el_id) {																// ===> SET CONTENT PANE ATTRIBUTES
  3545. 		let class_str_iframe = ( id === 'content_iframe_file' ? 'iframe_' : '' ), class_str_kind = ( /app|dir/.test(kind) ? 'dir' : 'file' );			// set strings to insert in content_pane class
  3546. 		switch(true) {
  3547. 			case id === 'close':
  3548. 				    removeClass('#content_pane','content_error has_file has_dir has_zoom_image has_scaled_image has_emptycontent');	// removeclass	various iframe_dir_src
  3549. 				removeAttribute('#content_pane .has_content','style');		removeAttribute('#content_pane','data-loaded_id');		// remove		inline styles and data-loaded_id
  3550. 				   setAttribute('#content_pane','data-content','has_null'); setAttribute('#content_pane','data-loaded','loaded');	// set			data-content=has_null, data-loaded=loaded (remove spinner)
  3551. 					break;
  3552. 			default:
  3553. 				switch(true) {
  3554. 					case ( /content_iframe_dir|content_iframe_parent|open_link_file/.test(id) ):	removeClass('#content_pane','has_iframe_file'); addClass('#content_pane','has_iframe_dir');		break;	// iframe_dirs
  3555. 					case ( /content_iframe_file/.test(id) ):										removeClass('#content_pane','has_dir');			addClass('#content_pane','has_iframe_file');	break;	// iframe files
  3556. 					case ( /^rowid/.test(id) ):	default:											removeClass('#content_pane','has_dir has_file has_iframe_dir has_iframe_file');					break;	// all sidebar items
  3557. 				}
  3558. 				 removeClass('#content_pane','content_error has_emptycontent');													// removeclass	#content_pane error
  3559. 				    addClass('#content_pane','has_'+ class_str_iframe + class_str_kind );										// addclass		#content_pane "has_"+ kind
  3560. 				setAttribute('#content_pane','data-content','has_'+ kind);														// add data.content to content_pane
  3561. 				setAttribute('#content_pane','data-loaded_id',id);																// hide all iframe content until loaded, show loading spinner:
  3562. 				if ( /content_iframe/.test(content_el_id) && !/ignored/.test(kind) ) { setAttribute('#content_pane','data-loaded','unloaded'); } else { setAttribute('#content_pane','data-loaded','loaded'); }
  3563. 		}
  3564. 	}
  3565. 	function setContentElAttrs(id,content_el_id,kind,src,selected_id) {													// ===> SET CONTENT EL ATTRIBUTES
  3566. 		switch(true) {
  3567. 			case ( /content_iframe_dir|content_iframe_parent|open_link_file/.test(id) ):										// iframe_dirs
  3568. 				setAttribute('#content_iframe','data-iframe_dir_src',src);														// if iframe_dir, set iframe_dir_src attr
  3569. 				if ( !hasAttribute('#content_iframe','data-iframe_selected_dir_id') ) { setAttribute('#content_iframe','data-iframe_selected_dir_id',selected_id); }	// select iframe_dirlist selected if iframe_dir
  3570. 																																				break;
  3571. 			case ( /content_iframe_file/.test(id) ):				setAttribute('#content_iframe','data-iframe_selected_id',selected_id);		break;	// iframe files
  3572. 			case kind === 'ignored': 																											return;	// ignored
  3573. 		}
  3574. 		removeAttribute('.content_el','src');    					setAttribute(content_el_id,'src',src); 						// set content el source
  3575. 		removeClass('.content_el.has_content','has_content');		addClass(content_el_id,'has_content');						// addclass .has_content to content_el and remove from siblings
  3576. 		if ( kind === 'image' ) { imageSetDimensions(); }																		// set image dimensions if necessary
  3577. 	}
  3578. 	function iframeLoadedFunctions(id,kind,file_name,content) {	let focus_el;											// ===> IFRAME LOADED FUNCTIONS
  3579. 		setAttribute('#content_pane','data-loaded','loaded');																	// set data-loaded (remove loading spinner)
  3580. 		if ( hasAttribute('#content_iframe','data-iframe_selected_id') ) {														// select iframe_dirlist selected IFF is iframe_dir
  3581. 			messageSend('iframe','select_iframe_item','',getEl('#content_iframe').dataset.iframe_selected_id ); 				// tell iframe to reselect original item
  3582. 			getEl('#content_iframe').removeAttribute('data-iframe_selected_id');												// remove data-iframe_selected_id
  3583. 			focus_el = '#content_iframe';
  3584. 		}
  3585. 		if ( hasAttribute('#content_iframe','data-iframe_selected_dir_id') && !hasContent('iframe_dir') ) {						// reselect originally opened iframe dir after closing any iframe dir opened from it
  3586. 			messageSend('iframe','select_iframe_item','',getEl('#content_iframe').dataset.iframe_selected_dir_id ); 			// (i.e., when selected sidebar dir is reopened after navigating in the iframe)
  3587. 			getEl('#content_iframe').removeAttribute('data-iframe_selected_dir_id');											// remove data-iframe_selected_dir_id
  3588. 			focus_el = '#content_iframe';
  3589. 		}
  3590. 		delete getEl('.dirlist_item[data-html_content]')?.dataset?.html_content;												// remove existing data-html_content
  3591. 		getEl('.dirlist_item.selected')?.classList.add('content_loaded');														// add content_loaded class to dirlist_item
  3592. 		getEl('.dirlist_item.content_loaded')?.setAttribute('data-html_content',content);										// set data-html_content for sidebar items (for processing cue, playlists, link files, html, etc.)
  3593. 		switch (true) {
  3594. 			case file_name.endsWith('.cuetxt'): 	{ cuesheetProcess(content); }										break;	// process cuesheet files; name must end with ".cuetxt"
  3595. 			case kind === 'link':					{ linkFileProcess(); }												break;	// process link files
  3596. 			case kind === 'htm' && content === '':	{ addClass('#content_pane','has_emptycontent'); }					break;	// if content == '', set empty class
  3597. 			case hasClass('#top_body','open_sidebar_in_content_pane'): addClass('#top_body','no_hover'); removeClass('#top_body','open_sidebar_in_content_pane'); focus_el = '#content_iframe';	break;
  3598. 		}
  3599. 		if ( focus_el !== undefined ) { focusEl(focus_el); }																	// focus element after iframe loaded
  3600. 	}
  3601. 	// ===> SHOW THIS ITEM	// file_name = link_info[1], file_ext = link_info[2], kind = link_info[3], item_classes = link_info[4], body_classes = link_info[5], stats_classes = link_info[6];
  3602. 	function showThisItem(id,args) { 							// ===> SHOW CONTENT // args = [link,kind,selected_id (for iframe dirs/files)] or "close"; bool === false for proper content title for autoload_coverart
  3603. 		let link_info = ( /rowid/.test(id) ? ( getLinkInfo( getAttribute('#'+ id +' a','href') ) ) : args !== undefined ? getLinkInfo(args[0]) : id );
  3604. 		let src, file_name, kind, content_el_id, selected_id = ( args?.[2] || undefined), content = ( args?.[4] || '' ), link_protocol = link_info?.[7];
  3605. 		let bool = (args?.[1] === 'autoloadcoverart' ? false : true);								// bool: tell set_content_title to use name for cover art, not file path
  3606. 		if ( typeof link_info !== 'string' && link_info !== undefined ) { src = link_info[0]; file_name = link_info[1]; kind = ( link_info[4].includes('ignored') ? 'ignored' : link_info[3] ); } // src, file_name, kind
  3607. 		if ( !/editor/.test(id) ) { removeClass('body','has_texteditor'); }		playlistShowItem('close');								// close texteditor and make playlist item textarea
  3608. 		switch(true) { 																													// make content src string
  3609. 			case id === 'close':											kind = 'close'; 	id = 'close';					break;
  3610. 			case ( /\.php\?/.test(src) ):																						break;
  3611. 			case id === '':													src = args[0]; 	kind = args[1];						break;	// id = '' typically when grid items remain after closing subdirectory
  3612. 			case ( /open_sidebar_in_content_pane/.test(id) ):				src = args[0] + makeSrcSearchParams('dir');   kind = args[1];				break;
  3613. 			case ( /iframe_parent|iframe_dir|open_link_file/.test(id) ):	src += makeSrcSearchParams('dir');					break;	// prep for iframe dirs
  3614. 			case ( /rowid/.test(id) ):	case id === 'content_iframe_file':	src += makeSrcSearchParams(kind);					break;	//
  3615. 		}
  3616. 		content_el_id = ( ['audio','font','image','pdf','video'].includes(kind) ? '#content_'+ kind : id === 'close' ? 'close' : '#content_iframe' );
  3617. 		switch(true) {																													// SHOW INDIVIDUAL CONTENT TYPES
  3618. 			case hasContent('font_file') && !/audio/.test(kind):			showWarning('closeContent');						break;	// prevent accidentally closing font file
  3619. 			case ( /audio/.test(kind) ): 									showMedia(kind,id,src);								break;	// show audio or audio_close
  3620. 			case ( /editor/.test(id) ):										showTextEditor();									break;	// show top text editor
  3621. 			case ( /iframe_loaded/.test(id) ):								iframeLoadedFunctions(id,kind,file_name,content);	break;	// iframe_loaded
  3622. 			case ( /grid/.test(id) ):										showGrid(id);										break;	// show grid
  3623. 			case ( window.location.protocol !== link_protocol ) && link_protocol !== undefined && !['audio','font','image','pdf','video','dir','app'].includes(kind):	// replace this text with test has non_local class?
  3624. 				switch(true) {
  3625. 					case link_protocol !== 'file:':							showWarning('non_local_file',[src]);				break;	// warning non-local file on local page (for playlist pages)
  3626. 					case link_protocol === 'file:':							showWarning('local_file');							break;	// warning local file on non-local page (for playlist pages)
  3627. 				}	 														showThis('close');									break;	// close previous content
  3628. 			case kind === 'ignored' && getCurrentUIPref('ignore_ignored_items') === 'false':	window.location = src;			break;	// attempt to open ignored files if ignore ignored items enabled
  3629. 			default:
  3630. 				switch(true) {
  3631. 					case ( /autoloadcoverart/.test(kind) ):					bool = false;										break;
  3632. 					case ( /font/.test(kind) ):								showFont(id,false,'',src);							break;	// show font specimen; init font preview event listeners
  3633. 					case ( /pdf/.test(kind) ):								showPDF();											break;	// show pdf: setup new #content_pdf el
  3634. 					case ( /video/.test(kind) ):						 	showMedia('video',id,src);							break;	// show video
  3635. 				}
  3636. 				if ( /font|image/.test(kind) && hasContent('grid') ) 		{ closeGrid('hide'); }
  3637. 				if ( !hasContent('font_file_glyph') ) { setContentPaneAttrs(id,kind,content_el_id); setContentElAttrs(id,content_el_id,kind,src,selected_id); setContentTitle(id,kind,file_name,src,bool); initContentError(id,content_el_id); }
  3638. 		}
  3639. 	}
  3640. 	// ===> SHOW THIS																																// bool_1 !== false: select item; bool_2 !== false: show item
  3641. 	function showThis(id,bool_1,bool_2,args) { if (bool_1 !== false) { selectThisItem(id); }  if (bool_2 !== false) { showThisItem(id,args); } } 	// ===> SHOW THIS (args = [src,kind,selected_id])
  3642. 	function quickLookThis(id,kind) { getEl('#audio').blur(); getEl('#content_video').blur();																						// prevent media play on space key if focused
  3643. 		switch(true) {
  3644. 			case window.parent !== window.top:																																	break;	// prevent infinite quicklook regression
  3645. 			case id === 'close': closeContent(); removeClass('body','has_quicklook'); getEl('#content_pane .selected')?.scrollIntoView({behavior:"smooth",block:"nearest"});	break; // close; scroll grid item into view
  3646. 			default:			 addClass('body','has_quicklook');	showMedia('close_audio');    showThis(id);    if ( /audio|video/.test(kind) ) { mediaPlayPause('play'); }		
  3647. 		}
  3648. 	}
  3649. 	//============================//
  3650. 	// ===> CLOSE CONTENT
  3651. 	function closeContent(kind) { // Close all .content elements before opening any new .content from sidebar.									// ===> CLOSE CONTENT
  3652. 		let content_el_id = ( getEl('.content_el.has_content')?.id || '' ); kind = ( kind || content_el_id.split('_')[1] );
  3653. 		switch(true) {																																			// additional actions for specific cases
  3654. 			case hasContent('hidden_grid'):																										showGrid();										break;	// show hidden grid
  3655. 			case kind === 'grid':		case hasContent('grid'):																				closeGrid();									break;	// close grid
  3656.  			case kind === 'font':		case hasContent('font_file_glyph'): case hasContent('font_specimen_glyph'):	case hasContent('font'):	showWarning('close_font','close_font');			break;	// close font specimen
  3657. 			case kind === 'playlist':	case (/has_\w+list/.test(getClassNames('body') ) ):														showWarning('close_playlist','close_playlist');	break;	// close playlist/filelist
  3658. 			case kind === 'texteditor': case hasClass('body','has_texteditor'):											showTextEditor(false);								break; 	// hide text editor
  3659. 			case hasContent('audio'):																showMedia('close_audio');							break;	// close audio if content pane empty
  3660. 			case hasClass('body','iframe_edited'):													messageSend('iframe','unloading','closeContent');	break;	// close edited iframe file with warning
  3661. 			case hasClass('body','has_directory_source') && !hasClass('body','is_error'):													showDirectorySource();								break;	// close directory source, reopen selected sidebar item
  3662. 			case kind === 'esc': 	 	removeClass('.selected,.content_loaded,.hovered,.is_blurred','selected content_loaded hovered,is_blurred'); removeClass('body','focus_content');	break;
  3663. 			default:  showThis('close');	removeClass('body','focus_content has_directory_source');		break; //
  3664. 			case hasContent('iframe_file') && !hasContent('iframe_dir'):															// if content has iframe file opened from sidebar dir
  3665. 			case !hasContent('iframe_file') && hasContent('iframe_dir'):															// or if content has iframe dir...
  3666. 				removeClass('#content_pane','has_iframe_file');																											// remove has_iframe_file class
  3667. 				showThis( getEl('.dirlist_item.non_media.selected')?.id );																						break;	// show the selected sidebar dir
  3668. 			case hasContent('iframe_file') && hasContent('iframe_dir'):																// if content has iframe file from iframe dir...
  3669. 				removeClass('#content_pane','has_iframe_dir');																											// remove has_iframe_dir class
  3670. 				showThis('content_iframe_dir',false,true,[getAttribute('#content_iframe','data-iframe_dir_src'),'dir']);												// show the iframe dir
  3671. 	 			removeAttribute('#content_iframe','data-iframe_dir_src');																						break;
  3672. 		}
  3673. 	}
  3674. 	//============================//
  3675. 	// ===> RESET CONTENT (Reset button or Cmd/Ctrl + R)
  3676. 	function resetContent() {																												// ===> RELOAD CONTENT
  3677. 		let content_pane_data = getContentPaneData();
  3678. 		switch(true) {
  3679. 			case !hasContent(): 				location.reload();																break;	// reload window if no content visible
  3680. 			case hasContent('audio'):			getEl('#audio').currentTime = 0;			getEl('#audio').pause();					// nobreak;  pause audio, reset time to 0
  3681. 			case hasContent('video'):			getEl('#content_video').currentTime = 0;	getEl('#content_video').pause();	break;	// pause video, reset time to 0
  3682. 		}
  3683. 		switch(true) {																																	// reset other content
  3684. 			case hasContent('texteditor'):		case ( /has_\w+list/.test(getClassNames('#top_body')) ):		break;	// do nothing for audio, video, text editor, playlist content.
  3685. 			case hasContent('grid'):					removeAttribute('#content_grid,.image_grid_item img','style');	showGrid(); break;	// reset grid
  3686. 			case hasContent('font'): 																fontReset('reset');	break;
  3687. 			case hasContent('image'):					closeContent();	if ( elExists('.image.selected') || elExists('.image.content_loaded') ) { showThis(getEl('.dirlist_item.image.content_loaded').id); }	break;
  3688. 			case hasContent('text,markdown,htm,iframe,dir'):
  3689. 				switch(true) {
  3690. 					case hasClass('body','iframe_edited'): 	messageSend('iframe','reloading','resetContent'); 									break;
  3691. 					default: showThis(getEl('.dirlist_item.content_loaded').id);
  3692. 				}
  3693. 			case hasContent('audio') || hasContent('video'):																					break;	// don't do anything else for audio, video, text editor, playlist content.
  3694. 			case ( /has_ignored|undefined/.test( content_pane_data ) ):	window.location = window.location.href;									break;	// reload page
  3695. 		}
  3696. 		delete getEl('#content_pane').dataset.loaded;																				// remove dataset.loaded in case file can't be read by utility iframe
  3697. 	}
  3698. 	//**********************// ===> NAVIGATION
  3699. 	function navigationGetType() {																											// ===> GET NAVIGATION TYPE
  3700. 		let content_pane_data = ( elExists('#content_pane') ? getContentPaneData() : 'iframe'), nav_type;
  3701. 		switch(true) {
  3702. 			case hasClass('body','has_menu'):										nav_type = ( getEl('#dir_menu_main .hovered') ? '#dir_menu_main .hovered ul' : '#dir_menu_main');	break;	// submenu or menu
  3703. 			case content_pane_data === 'iframe' && elExists('#directory_list'):																nav_type = '#directory_list';				break;	// iframe dir_list
  3704. 			case ( hasContent('font_file_glyph') || hasContent('font_file') ) && hasClass('body','focus_content'):							nav_type = '#font_file_grid';				break; 	// font file glyphs
  3705. 			case getEl('#font_specimen_grid').children.length > 0 && hasClass('body','focus_content') && document.activeElement.contentEditable !== true:
  3706. 							 																												nav_type = '#font_specimen_grid';			break;	// font specimen glyphs
  3707. 			case hasContent('image,font') && hasContent('hidden_grid') && hasClass('body','focus_content'):
  3708. 			case hasContent('grid') && hasClass('body','focus_content'):																	nav_type = '#content_grid';					break;	// grids
  3709. 			default:																														nav_type = '#directory_list'; 						// default: dir_list
  3710. 		}
  3711. 		return nav_type; 																															// = selector of container of items to be navigated
  3712. 	}
  3713. 	function navigateGetEl(args) {																											// ===> GET NEXT NAVIGATED ITEM
  3714. 		let els, els_length, selected_el_index, key = args[0], bool = args[1], nav_type = navigationGetType(), selected_el, selected_el_kind, navigated_el;
  3715. 		switch(true) {																																// Get selected_el
  3716. 			case bool === true:		selected_el = getEl('.media.selected') || getEls('.audio_loaded,.media.content_loaded,.dirlist_item.is_blurred')[0] || getEl('.media'); break;	// bool === true: autoplay media
  3717. 			default:				selected_el = getEl(nav_type).querySelector('.selected'); 																						// get currently selected item
  3718. 		}
  3719. 		if ( selected_el !== null ) { selected_el.classList.remove('selected');																		// If there is a selected item...remove its selected class
  3720. 			if ( !/warning_buttons/.test(nav_type) ) {
  3721. 				switch(true) {																														// get both images and fonts from mixed grids for L/R navigation...
  3722. 					case nav_type === '#content_grid' && elExists('.image_grid_item') && elExists('.font_grid_item'):	selected_el_kind = new RegExp(/image|font/);				break;
  3723. 					default:																							selected_el_kind = new RegExp(selected_el.dataset.kind);	// or get selected_el kind (for L/R navigation)
  3724. 				}
  3725. 			}
  3726. 			if ( /audio|video/.test(selected_el_kind) && hasClass('body','media_play_all') ) 	{ selected_el_kind = /audio|video/; }				// but if media_play_all, get both media kinds
  3727. 			if ( selected_el.classList.contains('hovered') && /ArrowUp|ArrowDown/.test(key) ) 	{ getEl('#dir_menu_main .hovered').classList.remove('hovered'); }
  3728. 		}
  3729. 		els = Array.from(getEl(nav_type).children).filter( (el) => {					 															// Get all navigable elements and filter
  3730. 			if ( /font_specimen_grid|font_file_grid|content_grid/.test(nav_type) || el.offsetWidth > 0 && el.offsetHeight > 0 ) {					// only return visible items (or glyphs grid items)
  3731. 				if ( selected_el !== null && /ArrowLeft|ArrowRight/.test(key) && !/warning_buttons|menu/.test(nav_type) ) {							// if L/R arrow and not menu or warning, and selected_el !== null...
  3732. 					return selected_el_kind.test(el.dataset.kind) && !el.classList.contains('unchecked');											// ...return all unchecked items of same kind as selected_el
  3733. 				} else {
  3734. 					return true;																													// else return all items
  3735. 				}
  3736. 			}
  3737. 		});
  3738. 		els_length = els.length;	selected_el_index = ( selected_el === null ? -1 : els.indexOf(selected_el) );					 				// get index of selected item from filtered els or -1 if null
  3739. 		switch(true) {																																// GET NEXT NAVIGATED ELEMENT
  3740. 			case hasClass('body','has_directory_source'): 																							// if viewing directory source, arrows will reopen selected sidebar item
  3741. 				if ( elExists('.dirlist_item.content_loaded') ) { showThis( getEl('.dirlist_item.content_loaded').id ); } else { showThis(selected_el.id); }							return;
  3742. 			case key === 'Tab': if (selected_el === null ) { navigated_el = ( bool !== true ? els[0] : els[els_length - 1] ) } else { navigated_el = selected_el; }						break;	// navigation from tab into iframe
  3743. 			case key === 'ArrowUp':		case key === 'ArrowLeft':																					// ArrowUp / ArrowDown
  3744. 				switch(true) {
  3745. 					case ( /audio|video/.test(selected_el_kind) && key === 'ArrowLeft' ):					navigated_el = navigateGetMediaLeftRightEl(els,selected_el,selected_el_index,key);			break;	// media
  3746. 					case ( /font_file|grid/.test(nav_type) && !hasClass('body','has_menu')):				navigated_el = els[navigateGetGridItemIndex(selected_el_index,els_length,nav_type,key)]; 	break;
  3747. 					case ( hasClass('body','has_menu') && selected_el === null && key === 'ArrowLeft'):		navigated_el = getEl('#dir_menu_parents');				break;	// select parents menu if no main menu item selected
  3748. 					case ( selected_el === null || ( selected_el_index === 0 && !key === 'ArrowLeft' ) ):	navigated_el = els[els_length - 1];						break;	// select last if nothing selected
  3749. 					case ( selected_el.classList.contains('is_submenu_item') && key === 'ArrowLeft' ):		navigated_el = navigateGetSubMenuEl(selected_el,key);	break;	// go to parent menu
  3750. 					case ( selected_el_index === 0 ): 														navigated_el = els[els_length - 1];						break;	// additional case for menus
  3751. 					default: 																				navigated_el = els[selected_el_index - 1];						// default dir_list and menu items
  3752. 				}																																					break;
  3753. 			case key === 'ArrowDown':	case key === 'ArrowRight':																					// ArrowLeft / ArrowRight
  3754. 				switch(true) {
  3755. 					case ( /audio|video/.test(selected_el_kind) && key === 'ArrowRight' ):
  3756. 						switch(true) {																							// if autoplay off, navigated_el = selected_el, else navigated_el = next media item
  3757. 							case hasClass('body','media_autoplay_false') && bool === true: 					navigated_el = selected_el;																	break;
  3758. 							default:																		navigated_el = navigateGetMediaLeftRightEl(els,selected_el,selected_el_index,key);
  3759. 						}																																												break;
  3760. 					case ( /font_file|grid/.test(nav_type) && !hasClass('body','has_menu') ):				navigated_el = els[navigateGetGridItemIndex(selected_el_index,els_length,nav_type,key)]; 	break;
  3761. 					case ( selected_el === null || selected_el_index === els_length - 1 ):					navigated_el = els[0];									break;	// select first if nothing selected
  3762. 					case ( selected_el.classList.contains('has_submenu') && key === 'ArrowRight' ):			navigated_el = navigateGetSubMenuEl(selected_el,key);	break;	// open submenu
  3763. 					default: 																				navigated_el = els[selected_el_index + 1];						// default dir_list and menu items
  3764. 				}																																					break;
  3765. 		}
  3766. 		switch(true) {																																				// WHAT TO DO WITH NAVIGATED ELEMENT:
  3767. 			case navigated_el === undefined:		navigated_el = ( /ArrowUp|ArrowLeft/.test(key) ? els[els_length - 1] : /ArrowDown|ArrowRight/.test(key) ? els[0] : null ); 
  3768. 													if ( navigated_el !== null ) { showThis(navigated_el.id); }														break;
  3769. 			case ( /grid|menu/.test(nav_type) ): 	navigated_el.classList.add('selected');																			// for grids and menus; ...add selected class to navigated_el
  3770. 				switch(true) {
  3771. 					case hasClass('body','has_menu'): case hasClass('body','has_menu_parents'):																		break;
  3772. 					case navigated_el.id === 'dir_menu_parents': 											menuShow(null,'dir_menu_parents');						break;
  3773. 					case hasContent('font_specimen_glyph'): 												showFontGlyph(null,navigated_el.id);					break;
  3774. 					case hasContent('font_file_glyph'):														showFontGlyph(null,navigated_el.id);				 	break;	// show the navigated font file glyph
  3775. 					case ( /grid/.test(nav_type) ):
  3776. 						getEl('#directory_list .selected')?.scrollIntoView({block:"nearest"});																				// scroll dir_list item into view
  3777. 						getEl('#content_pane .selected')?.scrollIntoView({behavior:"smooth",block:"nearest"});																// scroll grid item into view
  3778. 						break;
  3779. 				}																																					break;
  3780. 			case !isTopWindow():
  3781. 				switch(true) {
  3782. 					case hasClass('#content_body','has_quicklook'): 										quickLookThis(navigated_el.id,navigated_el.dataset.kind);	break; // either quicklook or select item
  3783. 					default: 																				showThis(navigated_el.id,true,false);
  3784. 				} 																																					break;
  3785. 			case ( /ArrowUp|ArrowDown/.test(key) && navigated_el.dataset.kind === 'audio' && !hasClass('#content_body','has_quicklook') ):	
  3786. 																										showThis(navigated_el.id,true,false);					break;	// only select audio on U/D arrow
  3787. 			case ( /ArrowLeft|ArrowRight/.test(key) && navigated_el.classList.contains('media') ):
  3788. 				switch(true) {
  3789. 					case hasClass('body','media_autoplay_false') && bool === 'true':		 				showThis(selected_el.id,true,false);					break;
  3790. 					default: showThis(navigated_el.id);																														// L/R arrow: load and play media
  3791. 						if ( selected_el_index === els_length - 1 && !hasClass('body','loop_media') && bool === true ) { null; } else { mediaPlayPause('play'); }			// if last item & !loop, select first item, else play
  3792. 				}																																					break;
  3793. 			default: showThis(navigated_el.id);																																// default: show item
  3794. 		}
  3795. 		if ( hasContent('hidden_grid') && /image|font/.test(navigated_el.dataset.kind) ) { removeClass('.grid_item.selected','selected'); getEl('.grid_item[data-id="'+ navigated_el.id +'"]').classList.add('selected'); };
  3796. 	}
  3797. 	function navigateGetGridItemIndex(selected_el_index,els_length,nav_type,key) {																	// ===> GRID NAVIGATION
  3798. 		let grid_col_count, grid_row_count, grid_item_index;
  3799. 		if ( /ArrowUp|ArrowDown/.test(key) ) { 																										// calculate number of grid rows and columns
  3800. 			grid_col_count = ( Math.round( getEl( nav_type ).offsetWidth / getEl( nav_type +' > li').offsetWidth ) );								// number of grid items per row
  3801. 			grid_row_count = Math.floor(els_length / grid_col_count);																				// number of full grid rows
  3802. 		}
  3803. 		switch(true) {
  3804. 			case key === 'ArrowUp':																													// ArrowUp
  3805. 				switch(true) {
  3806. 					case selected_el_index === -1: 														grid_item_index = els_length - 1; 	break; 	// if nothing selected
  3807. 					case selected_el_index < grid_col_count: 																						// if selected el is in first grid row...
  3808. 						switch(true) {																												// ...and if it is in a column to the right of last item in last row get...
  3809. 							case (grid_col_count * grid_row_count) + selected_el_index >= els_length:	grid_item_index = selected_el_index + (grid_col_count * (grid_row_count - 1)); break;	// last in penultimate col or...
  3810. 							default: 																	grid_item_index = selected_el_index + (grid_col_count * grid_row_count); 				// last in last row
  3811. 						}
  3812. 						break;
  3813. 					default: grid_item_index = selected_el_index - grid_col_count;																	// default: grid_item_index = selected_el_index - length of grid row
  3814. 				}																															break;
  3815. 			case key === 'ArrowDown':																												// ArrowDown
  3816. 				switch(true) {
  3817. 					case selected_el_index === -1: 								grid_item_index = 0;										break;	// if nothing selected, get first item
  3818. 					case selected_el_index + 1 + grid_col_count > els_length:	grid_item_index = ( selected_el_index - (grid_col_count * ( grid_row_count - 1)) ) % grid_col_count; break; // if selected is last in column
  3819. 					default:													grid_item_index = selected_el_index + grid_col_count;				// default: index = selected_el_index plus the length of the grid row
  3820. 				}																															break;
  3821. 			case key === 'ArrowLeft': 	grid_item_index = ( ( selected_el_index === -1 || selected_el_index === 0 ) ? els_length - 1 : selected_el_index - 1 ); break;	// if first or nothing selected, get last or prev
  3822. 			case key === 'ArrowRight':	grid_item_index = ( ( selected_el_index === -1 || selected_el_index + 1 === els_length ) ? 0 : selected_el_index + 1 ); break;	// if last or nothing selected, get first or next
  3823. 			}
  3824. 		if ( !hasContent('font_file') && nav_type !== '#font_specimen_grid' && nav_type !== '#font_file_grid' ) {									// select corresponding dir_list item for image/font grids, but not font files
  3825. 			removeClass('.dirlist_item','selected hovered');		removeClass('.dirlist_item.content_loaded','content_loaded'); 					// remove classes from dir_list items
  3826. 			let selected_id = getEl(nav_type).querySelectorAll('.grid_item')?.[grid_item_index]?.dataset.id;										// get the data-id from the currently selected grid item
  3827. 			if ( selected_id ) { getEl('#'+selected_id)?.classList.add('selected'); getEl('.dirlist_item.selected')?.scrollIntoView({behavior:"smooth",block:"nearest"}); }	// select & scroll dir_list item into view
  3828. 		}
  3829. 		return grid_item_index;
  3830. 	}
  3831. 	function navigateGetSubMenuEl(selected_el,key) { let navigated_el;																		// ===> SUBMENU NAVIGATION
  3832. 		switch(true) {
  3833. 			case selected_el?.classList.contains('has_submenu') && key === 'ArrowRight':
  3834. 				selected_el.classList.add('hovered');									navigated_el = selected_el.querySelector('ul li');	navigated_el.classList.add('selected');											break;
  3835. 			case selected_el?.classList.contains('is_submenu_item') && key === 'ArrowLeft':
  3836. 				removeClass('#dir_menu_main li.is_submenu_item.selected','selected');	navigated_el = getEl('#dir_menu_main .hovered'); navigated_el.classList.add('selected');  navigated_el.classList.remove('hovered');  break;
  3837. 			}
  3838. 		return navigated_el;
  3839. 	}
  3840. 	function navigateGetMediaLeftRightEl(els,selected_el,selected_el_index,key) { let navigated_el, navigated_el_id;											// ===> MEDIA LEFT/RIGHT NAVIGATION (Audio)
  3841. 		switch(true) {
  3842. 			case hasClass('body','shuffle_media'):	navigated_el_id = mediaShuffleGetNextItem();																	// if shuffle play enabled...get the next shuffled item id
  3843. 				switch(true) { // but if all shuffled items have been played (i.e., navigated_el_id === ''): if loop, update shufflelist, get next item; else get first item.
  3844. 					case navigated_el_id === '': 	navigated_el = ( hasClass('body','loop_media') ? ( mediaShuffleListUpdate(), navigated_el = getEl('#'+ mediaShuffleGetNextItem()) ) : navigated_el = els[0] );	break;
  3845. 					default: 					 	navigated_el = getEl('#'+ navigated_el_id );																	// else get next item in the shufflelist
  3846. 				}
  3847. 				getEl('#shuffle_label').dataset.shufflecount = ' ('+getAttribute('#content_audio','data-shufflelist').split(',').length+' remaining)';											break;
  3848. 			case !selected_el.classList.contains('audio_loaded') && selected_el.classList.contains('audio') && isTopWindow(): navigated_el = selected_el;	break;	// if selected audio item not loaded, select it
  3849. 			case key === 'ArrowRight': navigated_el = ( selected_el_index + 1 < els.length ? els[selected_el_index + 1] : navigated_el = els[0] );			break;	// if selected not last, select next, else select first
  3850. 			case key === 'ArrowLeft':  navigated_el = ( selected_el_index - 1 !== -1 ? els[selected_el_index - 1] : navigated_el = els[els.length - 1] );	break;	// if selected not first, select prev item, else last
  3851. 		}
  3852. 		selected_el.classList.remove('audio_loaded','content_loaded');																								// deselect currently selected media item class
  3853. 		return navigated_el;
  3854. 	}
  3855. 	function navigateWarningBtns(e) {																									// ===> NAVIGATE WARNING BUTTONS
  3856. 		let buttons = getVisibleElsBySelector('#warning_buttons button');
  3857. 		let focused_button = getVisibleElsBySelector('#warning_buttons :focus,#warning_buttons .focus')[0], focused_btn_index = buttons.indexOf(focused_button);
  3858. 			removeClass('#warning_buttons button','focus');
  3859. 		switch(true) {
  3860. 			case e.shiftKey:
  3861. 				switch(true) {
  3862. 					case focused_button === null || buttons.indexOf(focused_button) === 0:
  3863. 						  buttons[buttons.length - 1].focus(); buttons[buttons.length - 1].classList.add('focus');						break;	// focus last button
  3864. 					default: buttons[focused_btn_index - 1].classList.add('focus'); buttons[focused_btn_index - 1].focus(); 						// else focus previous button
  3865. 				}
  3866. 				break;
  3867. 			default: // e.Tab
  3868. 				switch(true) {
  3869. 					case focused_button === null || buttons.indexOf(focused_button) === buttons.length - 1:
  3870. 						  buttons[0].focus(); buttons[0].classList.add('focus'); 															break;  // focus first button
  3871. 					default: buttons[focused_btn_index + 1].classList.add('focus'); buttons[focused_btn_index + 1].focus(); 						// else focus next button
  3872. 				}
  3873. 		}
  3874. 	}
  3875. 	function navigateByArrowModKey(e,id) {																								// ===> ARROW KEY MODIFIER FUNCTIONS
  3876. 		let args = [e.key], selected_el;
  3877. 		if ( cmdAltKey(e) && ( /ArrowLeft|ArrowRight|ArrowUp|ArrowDown/.test(e.key) ) ) { return; } else { e.preventDefault(); }				// prevents starting audio play when changing tabs; allows browser tab cycling
  3878. 		switch(true) {
  3879. 			case ( /ArrowUp|ArrowDown/.test(e.key) && e.shiftKey && !cmdKey(e) && !altKey(e) ): 												// e.shiftKey => select multiple items
  3880. 				let prev_el = getEl('#'+id).previousElementSibling, next_el = getEl('#'+id).nextElementSibling;
  3881. 				let sibling_id = ( e.key === 'ArrowUp' && prev_el !== null ? prev_el.id : e.key === 'ArrowDown' && next_el !== null ? next_el.id : null );
  3882. 				if ( sibling_id !== null ) { selectMultipleItems(e,sibling_id); }																// if there is a sibling, select it
  3883. 				break;
  3884. 			case ( /ArrowLeft|ArrowRight/.test(e.key) && ( altKey(e) || altShiftKey(e) ) ): 													// alt/shift + L/R => mediaSkip(e)
  3885. 				if ( e.shiftKey ) { args.push(30); } else { args.push(10); }																	// scrub 10s or 30s
  3886. 				if (!isTopWindow()) { messageSend('top_body','mediaSkip','mediaSkip',args); } else { mediaSkip(e); }
  3887. 				break;
  3888. 			case cmdKey(e) && e.key === 'ArrowUp': 																								// Cmd/Ctrl + Up
  3889. 				switch(true) {
  3890. 					case hasClass('body','is_dir'): case !isTopWindow():					iframeClick(e,'iframe_parent_link','link',getEl('#iframe_parent_link').href);			break;	// go to iframe parent
  3891. 					case isTopWindow() && hasClass('body','focus_content') && hasClass('#content_iframe','has_content'):
  3892. 																							messageSend('iframe','open_iframe_parent_dir'); 	break;	// fallback for go to iframe parent in case top is incorrectly focused
  3893. 					default:	e.preventDefault(); showWarning('changeLocation',[getEl('#parent_dir_nav a').href,'false']);					break;	// go to parent (with warning for playlists/fonts/edited text)
  3894. 				}																																break;
  3895. 			case cmdKey(e) && e.key === 'ArrowDown': 																							// Cmd/Ctrl + Down
  3896. 				switch(true) {
  3897. 					case !elExists('.selected'):																														break;	// do nothing if nothing selected
  3898. 					case elExists('#content_body #directory_list') && cmdKey(e): 	iframeClick( e,id,'dblclick',getEl('#'+id).querySelector('a').href );				break;
  3899. 					case hasClass('.dirlist_item.selected','link'): 				openLinkFile(e,getEl('.dirlist_item.selected.link').id);							break;	// open webloc or url files
  3900. 					case hasClass('.dirlist_item.selected','playlist'): 			openPlaylist('','',getEl('.dirlist_item.selected.playlist').dataset.playlist);		break;	// open playlist or filelist
  3901. 					case isTopWindow() && hasClass('body','focus_content'):			 focusEl('#content_iframe',e); 								break;	// select first item if nothing selected in iframe
  3902. 					case isTopWindow() && hasClass('.dirlist_item.selected','file') && !hasClass('.dirlist_item.selected','link'): 										break;	// ? do nothing for link files
  3903. 					case isTopWindow() && hasClass('.dirlist_item.selected','dir') && hasClass('.dirlist_item.selected','app') && UI_Prefs_Bool.apps_as_dirs === false:	break;	// break if not viewing apps as dirs
  3904. 					default: showWarning('dirOpen', [getAttribute('.dirlist_item.selected','id'), getAttribute('.dirlist_item.selected a','href')]);
  3905. 																																						// else double-click directories and all iframe items to open them
  3906. 				}																																						break;
  3907. 			case cmdKey(e) && e.key === 'ArrowLeft': 																															// Cmd/Ctrl + Left
  3908. 				switch(true) {
  3909. 					case elExists('.dirlist_item.dir.selected.has_subdirectory'):
  3910. 						getEls('.dirlist_item.dir.selected.has_subdirectory').forEach( dir => subDirClose(dir.id) );												break;	//  close all selected subdirectories
  3911. 					case !hasClass('.dirlist_item.selected','has_subdirectory') && elExists('.dirlist_item.has_subdirectory'):													// if selected item is in subdirectory...
  3912. 						selected_el = getEl('.dirlist_item.selected');
  3913. 						if ( selected_el === null || selected_el.previousElementSibling === null )																	{ break; }	// do nothing if no selection or prev element
  3914. 						while ( !selected_el.previousElementSibling.classList.contains('has_subdirectory') ) { selected_el = selected_el.previousElementSibling; }				// find subdir "parent" === prev .has_subdirectory
  3915. 						if ( selected_el !== null && selected_el.previousElementSibling !== null )			 { showThis( selected_el.previousElementSibling.id ); }		break;	// select and show parent dir
  3916. 					default: showThis( getVisibleElsBySelector('.dirlist_item')[0].id); 									  	 												// select first visible item
  3917. 				}																																						break;
  3918. 			case cmdKey(e) && e.key === 'ArrowRight': try { subDirOpen(getEl('.dirlist_item.dir.selected:not(.has_subdirectory)').id); } catch(e) { null; }		break;	// Cmd/Ctrl + R: open (1st) selected subdirectory
  3919. 			case e.shiftKey: navigateGetEl([e.key,false,true]);																									break;
  3920. 		}
  3921. 	}
  3922. 	function navigateByArrowKey(args) { navigateGetEl(args); } 				// args[0] = key, args[1] = bool (for autoplay media),bool = shift								// ===> ARROW KEY NAVIGATION
  3923. 	function arrowKeyFunctions(e,bool,el) { 								// 'e' = keyboardEvent or string (e.g. 'ArrowLeft/Right' from clickPrevNextButtons()			// ===> ARROW KEY FUNCTIONS
  3924. 		addClass('body','no_hover');
  3925. 		if ( hasClass('body','has_help') ) { getEl('#help_container').focus(); return true; }
  3926. 		let id = ( /ArrowUp|ArrowLeft/.test(e.key) ? el?.querySelector('.selected')?.id : Array.from(el?.querySelectorAll('.selected'))?.reverse()[0]?.id ); 						// get first or last selected item
  3927. 		if ( !/texteditor/.test(document.activeElement.id) && !/textarea/.test(document.activeElement.tagName.toLowerCase() )) { window.getSelection().removeAllRanges(); document.activeElement.blur(); } // TEST all situations
  3928. 		switch(true) {
  3929. 			case ( /a|input|select|textarea/.test(document.activeElement.tagName.toLowerCase())) && !cmdKey(e):																		// nobreak: allow normal arrow key functions
  3930. 			case ( /texteditor/.test(document.activeElement.id)) && !cmdKey(e):																										// nobreak //  "  "
  3931. 			case document.activeElement.hasAttribute('contentEditable') && !cmdKey(e):																								// nobreak //  "  "
  3932. 			case !isTopWindow() && !elExists('#content_body #directory_list') && !cmdKey(e):																				return;	// iframe is not a dir_list
  3933. 			case hasContent('pdf') && hasClass('body','focus_content'):		 											focusEl('#content_pdf');							break;	// focus content_pdf
  3934. 			case ( ( hasContent('zoom_image') || hasContent('scaled_image') ) && hasClass('body','focus_content') ):	focusEl('#content_image');							return;	// scroll imgs
  3935. 			case e.altKey: case e.ctrlKey: case e.metaKey: case e.shiftKey: navigateByArrowModKey(e,id);		 															break;	// arrow keys + modifiers
  3936. 			case isTopWindow() && hasClass('body','iframe_edited'):			e.preventDefault();	messageSend('iframe','unloading','',['arrow_key_navigation',e.key]);		break;
  3937. 			case isTopWindow() && hasClass('body','focus_content') && hasContent('dir'):	e.preventDefault();																		// req. after nav to iframe dir_list parent dir
  3938. 				switch(true) {
  3939. 					case hasClass('body','has_menu'): 				navigateByArrowKey([e.key,false]);																		break;
  3940. 					default:										messageSend('iframe','iframe_navigation','',[e.key,false]); getEl('#content_iframe').focus();
  3941. 				}																																							break;
  3942. 			case hasClass('body','has_top_menu') && !isTopWindow(): e.preventDefault();	messageSend('top_body','arrow_key_navigation','navigateByArrowKey',[e.key,false]);	break;	// menu navigation from focused iframe
  3943. 			case hasClass('body','has_quicklook'):					e.preventDefault();	navigateByArrowKey([e.key,bool]);													break;
  3944.  			default:												e.preventDefault();	showWarning( 'navigateByArrowKey',[e.key,bool] );											// normal arrow key navigation, with warning
  3945. 		}
  3946. 	}
  3947. 	// NAVIGATION Go to Item
  3948. 	function goToItem(e) { e.stopPropagation(); e.preventDefault(); let value, input_el = getEl('#go_to_item input');
  3949. 		switch(true) {
  3950. 			case e.key === 'j' && cmdShiftKey(e): 																			menuShow(e,'dir_menu_main_container');								// nobreak; show menu
  3951. 			case e?.type === 'click' && document.activeElement.id !== 'go_to_item_input': addClass('#go_to_item','show_input');	getEl('#go_to_item input').focus();						break;	// show input on click
  3952. 			case e?.key === 'Enter': 	default:
  3953. 				value = input_el.value - 1; removeClass('#go_to_item','show_input'); input_el.value = null; menuClose(); showThis(getEls('#directory_list .dirlist_item')[value]?.id);	break;	// get the entered ui font
  3954. 		}
  3955. 	}
  3956. 	// NAVIGATION Tab Key
  3957. 	function navigateTabKeyFocus(kind,incr) {
  3958. 		let sel = { 'font':'#content_font .selected,#content_font *[data-tab_order],#font_toolbar *[data-tab_order]', 'grid':'#content_grid,#top_body', 'html':'a,button,input,select,textarea,div[contenteditable]', 'link':'#texteditor_preview_pane a', 'texteditor':'#content_texteditor .texteditor_pane' } 																									// tab-able elements by nav type
  3959. 		let els = Array.from( getEls(sel[kind]) ).filter( el => el.offsetWidth > 0 && el.offsetHeight > 0 ), el_ids, next_item_id, font_els = [];											// get tab-able elements; other vars
  3960. 		let active_el = (kind === 'font' ? getEls('#content_font .selected,#content_font *:focus,#font_toolbar *:focus')[0] : document.activeElement );
  3961. 		if ( els !== null ) { el_ids = ( kind !== 'html' ? els.map( el => el.id ) : els.map( el => els.indexOf(el) ) ) } else { return null }												// get ids or define ids by index
  3962. 		if ( kind === 'font' && incr === 1 ) {																																				// reorder font_specimen items
  3963. 			font_els = el_ids.filter(id => (/font_specimen/.test(id)) ); el_ids = el_ids.filter(id => (!/font_specimen/.test(id)) ); if ( incr === -1 ) { el_ids.reverse(); } el_ids = font_els.concat(el_ids);
  3964. 			if ( getEl('#font_file_grid .selected') ) { null; }
  3965. 		}
  3966. 		switch(true) {																																			// get first or last item...
  3967. 			case active_el === undefined && kind === 'font' && incr === 1:		case ( active_el?.tagName.toLowerCase() === 'body' || active_el === null ) && incr === 1:		next_item_id = el_ids[0];					break;
  3968. 			case active_el === undefined && kind === 'font' && incr === -1:		case ( active_el?.tagName.toLowerCase() === 'body' || active_el === null ) && incr === -1:		next_item_id = el_ids[el_ids.length - 1];	break;
  3969. 			default:	next_item_id = ( kind !== 'html' ? el_ids[el_ids.indexOf( active_el.id ) + incr] : el_ids[els.indexOf( active_el ) + incr] );	break; 	// or tab to next item for any other content
  3970. 		}
  3971. 		switch(true) {
  3972. 			case next_item_id === undefined: if ( kind === 'font' && !hasClass('body','focus_content') ) { addClass('body','focus_content'); } else {  focusEl('#top_body'); }	break;	//focus top or font
  3973. 			case kind === 'grid':													 focusEl('#content_grid');			break;
  3974. 			case kind !== 'html': 													focusEl('#'+next_item_id);										break;
  3975. 			case kind === 'html': if ( !getEl('#html_styles') ) { document.head.insertAdjacentHTML('beforeend','<style id="html_styles">'+ html_style_rules +'</style>'); } els[next_item_id].focus({focusVisible:true}); break; }
  3976. 	}
  3977. 	function navigateByTabKey(e,incr) {																												// ===> NAVIGATION TAB KEY
  3978. 		if ( e === null ) { null } else { incr = ( e.shiftKey ? -1 : 1 ); }																					// e === null if from message navigateTabKeyFocus;
  3979. 		let content_pane_data = getContentPaneData(), content_el_id = 'content'+ content_pane_data?.slice(3) || null, next_item_id;
  3980. 		switch(true) {																																		// non-default cases
  3981. 			case hasClass('body','has_warning'):						navigateWarningBtns(e);														break;	// nav warning buttons
  3982. 			case hasContent('texteditor'):								navigateTabKeyFocus('texteditor',incr);										break;	// focus font preview, grid, text editor els
  3983. 			case hasContent('font,grid'):								navigateTabKeyFocus(content_pane_data.slice(4),incr);						break;	// focus font preview, grid, text editor els
  3984. 			case !isTopWindow():
  3985. 				switch(true) {
  3986. 					case hasClass('body','is_dir'):						messageSend('top_body','focus_top');										break;
  3987. 					case hasClass('body','is_link'):					navigateTabKeyFocus('link',incr);											break;	// nav link file
  3988. 					case hasClass('body','is_html'):					navigateTabKeyFocus('html',incr);											break;	// nav html file els (links, etc.)
  3989. 					case hasClass('body','is_text'):					navigateTabKeyFocus('texteditor',incr);										break;	// nav html file els (links, etc.)
  3990. 				}																																	break;
  3991. 			default:
  3992. 				switch(true) {
  3993. 					case hasContent('image,pdf,video') && !hasClass('body','focus_content'):	next_item_id = content_el_id;		break;	// tab into images, pdf, video
  3994. 					case hasClass('body','has_texteditor') && !hasClass('body','focus_content'):														// tab into text editor
  3995. 					case hasContent('dir,htm,markdown,text,code,other,link'):			next_item_id = '#content_iframe';	break;	// tab into iframe dirs and text files
  3996. 					case hasClass('body','focus_content'):												 		next_item_id = '#top_body';			break;	// tab into top
  3997. 				}
  3998. 				 focusEl(next_item_id,e);																							// focusEl
  3999. 		}
  4000. 	}
  4001. 	// NAVIGATION Other
  4002. 	function navigateByTypedStr(e) { let items, item, timer;																									// ===> NAVIGATE BY TYPED STRING
  4003. 		switch(true) {
  4004. 			case ( /textarea|input/.test(document.activeElement.tagName.toLowerCase()) || document.activeElement.getAttribute('contentEditable') === true ): 		return;	// ignore editable textareas
  4005. 			default:
  4006. 				timer = timeoutID();	if ( typeof timer === 'number' ) { window.clearTimeout( timer ); timer = 0; }	timeoutID(); 							// set timer for typed string
  4007. 				str += e.key.toLowerCase();																														// define typed string
  4008. 				switch(true) {
  4009. 					case hasClass('#top_body','has_menu'):																										// navigate main menu
  4010. 						items = ( getEls('#dir_menu_main > li.has_submenu.hovered').length > 0 ? getEls('#dir_menu_main > li.has_submenu.hovered li') : getEls('#dir_menu_main > li') );	// get menu or submenu items
  4011. 						items = Array.from(items).filter( item => item.innerText.toLowerCase().startsWith(str) );												// get menu items and filter items that match typed string
  4012. 						if ( items.length > 0 ) { item = items[0]; item?.parentNode.querySelector('.selected')?.classList.remove('selected'); item?.classList.add('selected'); }	break;	// select if matching menu item found
  4013. 					default: if ( elExists('.dirlist_item[data-name^="'+ str +'"]') ) { showThis(getEl('.dirlist_item[data-name^="'+ str +'"]').id); scrollThis('#directory_list','.selected'); }	// select dir_list item
  4014. 				}
  4015. 		}
  4016. 	}
  4017. 	// ===> END NAVIGATION
  4018. 	//============================//
  4019. 	// ===> TEXT EDITING
  4020. 	function TextEditing() {																												// ===> TEXT EDITING Function: create Markdown Preview
  4021. 		let raw_markdown = ( elExists('#texteditor_txt_pane') ? getEl('#texteditor_txt_pane').value.toString() : '' );
  4022. 		MDmarkdown( raw_markdown, getEl('#texteditor_html_pane') );
  4023. 		MDsetChecklistClass();																														// set checklist class in case any added
  4024. 	}
  4025. 	function textareaSelectContent(id) { let textarea_el = getEl('#'+id);   focusEl('#'+ id); textarea_el.select(); textarea_el.scrollTop = 0; }		// ===> SELECT TEXTAREA CONTENT
  4026. 	function texteditorClear() {																													// ===> CLEAR TEXT
  4027. 		if ( !isTopWindow() ) { messageSend('top_body','iframe_edited'); addClass('body','texteditor_edited'); } else { removeClass('body','texteditor_edited'); }
  4028. 		getEl('#texteditor_txt_pane').value = '';				getEl('#texteditor_preview_pane').innerHTML = '';	getEl('#texteditor_html_pane').value = '';
  4029. 		getEl('#texteditor_txt_pane').style.width = '';			focusEl('#texteditor_txt_pane');
  4030. 		removeAttribute('#texteditor_preview_pane','srcdoc');
  4031. 	}
  4032. 	function texteditorSaveBtn(id) { let data, file_name, ext = ''; // let Text_Files = Text_Files.map( item => '.'+item );							// ===> SAVE BUTTON
  4033. 		switch(true) {
  4034. 			case hasContent('texteditor'):						file_name = 'untitled'; break;
  4035. 			default:											file_name = decodeURIComponentSafe(window.location.pathname.split('/').reverse()[0]);
  4036. 		}
  4037. 		switch(true) {
  4038. 			case id === 'save_text': 							data = getEl('#texteditor_txt_pane').value; 										break; // if ( Text_Files.() ) { ext = '.md'; } 	break;
  4039. 			case id === 'save_HTML':							data = MDprepHTML( getEl('#texteditor_preview_pane').innerHTML ); 	ext = '.html';	break;
  4040. 		}
  4041. 		saveMD( data, file_name + ext );
  4042. 	}
  4043. 	function MDprepHTML(data) {																												// ===> MD PREP HTML for saving
  4044. 		let save_HTML_open = `<!DOCTYPE html><html><head><meta charset="utf-8" /><title></title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/github-markdown-css/3.0.1/github-markdown.min.css"></link>    <style></style><script></script></head><body lang="en" class="markdown_body">`, save_HTML_close = '</body></html>';
  4045. 		data = data.replace(/<span\sclass="uplink">.<\/span>/g,'');
  4046. 		return save_HTML_open + data + save_HTML_close;
  4047. 	}
  4048. 	function saveMD(data,file_name) { 																										// ===> SAVE MD
  4049. 		if ( !isTopWindow() ) { messageSend('top_body','save_text','',[data,file_name]); } else { saveFile(data,'text/plain',file_name); }	// #top_body must save text, else a new window opens containing blob content
  4050. 		removeClass('body,#texteditor_txt_pane,#content_texteditor','texteditor_edited');
  4051. 	}
  4052. 	// MD Custom pre- and post-processing for text.
  4053. 	// function MDaddHeaderIDs(match, p1, p2, p3) { return '<h'+ p1 +' id="'+ p3.toLowerCase().replace(/\s/g,'-') +'" ' + p2 +'>'+ p3; } 	// ===> MD ADD HEADER IDS (for Toc)
  4054. 	function MDcustomPreProcess(src) { return src; } 																						// ===> MD CUSTOM PREPROCESS (we're not doing anything here just yet...)
  4055. 	function MDcustomPostProcess(html) {																									// ===> MD CUSTOM POSTPROCESS
  4056. 		html = html.replace(/<(p|li|dt|dd)>-*\s*\[\s*x\s*\]\s*(.+?)<\/(p|li|dt|dd)>$/gm,'<$1 class="checklist"><input type="checkbox" checked><label>$2</label></$3>')	// checkboxes in p,li,dt,dd
  4057. 				   .replace(/<(p|li|dt|dd)>-*\s*\[\s{1,}\]\s*(.+?)<\/(p|li|dt|dd)>$/gm,'<$1 class="checklist"><input type="checkbox"><label>$2</label></$3>') 			// checkboxes
  4058. 				   .replace(/<li><p class="checklist">"/g,'<li class="checklist"><p>');
  4059. 		return html;
  4060. 	}
  4061. 	function MDmarkdown(raw_markdown) { 																										// ===> MDMARKDOWN: Render markdown from processed source text
  4062. 		const MDit = window.markdownit( { linkify:false, typography:false, html:true } ).use( window.markdownitMultimdTable, { enableMultilineRows:true })
  4063. 			.use(window.markdownitCheckbox).use(window.markdownitSub).use(window.markdownitSup).use(window.markdownitFootnote).use(window.markdownitCentertext).use(window.markdownitDeflist).use(window.markdownitTocDoneRight);
  4064. 		let MD_Preview = MDcustomPostProcess( MDit.render( MDcustomPreProcess( raw_markdown ) ) );
  4065. 		let MD_script = `<style>body{margin:0;padding:0;}</style>`;  							// inline scripts to permit sync scrolling and focus
  4066. 			getEl('#texteditor_preview_pane').innerHTML = MD_script + MD_Preview; 																// set previewed text
  4067. 		let source_HTML = MD_Preview.toString();
  4068. 			getEl('#texteditor_html_pane').value = source_HTML; 																			// set raw html view
  4069. 	}
  4070. 	function MDlivePreview() { MDmarkdown( getEl('#texteditor_txt_pane').value ); MDsetChecklistClass(); }							// ===> MD LIVE PREVIEW
  4071. 	function MDreplaceAt(str, replacement, position) { str = str.substring(0, position) + replacement + str.substring(position + replacement.length); return str; }
  4072. 	function MDreplaceNthSubStr(str,substr,replacement,index) {
  4073. 		let count = 0, found = substr.exec(str);
  4074. 		while ( found !== null ) { if ( count === index ) { return MDreplaceAt(str, replacement, found.index ); } else { count++; found = substr.exec(str); } }
  4075. 	}
  4076. 	function MDliveCheckBoxes(checkbox,source_el,preview_el) {																			// ===> MD LIVE CHECKBOXES
  4077. 		removeClass('.checklist','clicked');
  4078. 		checkbox.closest('p,li,dt,dd').classList.add('clicked');
  4079. 		const this_index = preview_el.querySelector('.checklist').index( preview_el.querySelector('.checklist .clicked') );
  4080. 		const src_text = source_el.value;
  4081. 		const substr = new RegExp(/\[\s*.\s*\]/g);
  4082. 		const replacement = ( checkbox.is(':checked') ? '[x]' : '[ ]' );
  4083. 		source_el.value = MDreplaceNthSubStr(src_text, substr, replacement, this_index);
  4084. 	}
  4085. 	function MDsetChecklistClass() { getEls('#text_container input[type="checkbox"]').forEach( el => el.closest('ul').style.cssText = 'list-style:none;padding:0;' ); }	// ===> MD SET CHECKBOX LIST CLASS
  4086. 	function texteditor_ResizeSplit() {																																	// ===> MD RESIZE SPLIT VIEW
  4087. 		let page_width = window.innerWidth, editor_width = getEl('#content_texteditor').offsetWidth, editor_offsetLeft = ( document.body.id === 'top_body' ? getEl('#content_pane').offsetLeft : 0);
  4088. 		document.onmousemove = function(e) { eStopPrevent(e);
  4089. 			let pageX = e.pageX;
  4090. 			if ( pageX > editor_offsetLeft + 150 && pageX < page_width - 150 ) {																	// min split pane widths
  4091. 				setStyle('#text_editing_handle','left', pageX - editor_offsetLeft - 4 + 'px');
  4092. 				setStyle('#texteditor_txt_pane','width', pageX - editor_offsetLeft + 'px');
  4093. 				setStyle('#texteditor_preview_pane','width', editor_width + editor_offsetLeft - pageX + 'px');
  4094. 				setStyle('#texteditor_html_pane','width', editor_width + editor_offsetLeft - pageX + 'px');
  4095. 			}
  4096. 		}
  4097. 	}
  4098. 	function texteditor_ResetSplit() { getEls('#text_container .texteditor_pane,#text_editing_handle').forEach( el => el.removeAttribute('style') ); }
  4099. 	function texteditor_SyncScroll(e) {																		// ===> MD SYNC SCROLL
  4100. 		if ( !getEl('input[name="texteditor_sync_scroll"').checked || hasClass('body','texteditor_split_view_false') ) { return; } 							// ignore if no split or no sync scroll
  4101. 		let scrolled = e.currentTarget, scrolled_scrollTop = scrolled.scrollTop, scrolled_height = scrolled.scrollHeight,
  4102. 			scrolled_percentage = (scrolled_scrollTop/scrolled_height).toFixed(4);
  4103. 		let synced_id = ['texteditor_txt_pane','texteditor_preview_pane','texteditor_html_pane'].filter(el => el !== scrolled.id).filter(el => document.getElementById(el).offsetHeight > 0).toString();
  4104. 		let synced = document.getElementById(synced_id); 			// the element to be sync scrolled
  4105. 		synced.scrollTo(0, (scrolled_percentage * synced.scrollHeight).toFixed(0), {behavior:'smooth'});
  4106. 	}
  4107. 	function MDtocClick(id) { let thisId = getEl('#'+id).href; if ( thisId !== null ) { getEl('#texteditor_preview_pane').scrollTop = getEl('#'+id).offset().top - 48; } }	// ===> MD TOC CLICK anchors
  4108. 	function MDheaderClick() {																																				// ===> MD HEADER CLICK
  4109. 		switch(true) {
  4110. 			case elExists('#texteditor_preview_pane .table-of-contents'):	getEl('#texteditor_preview_pane').getElementsByClassName('table-of-contents')[0].scrollIntoView({behavior:"smooth",block:"nearest"}); break;
  4111. 			default:														getEl('#texteditor_preview_pane').scroll(0,0);
  4112. 		}
  4113. 	}
  4114. 	//***********************//
  4115. 	// MESSAGES
  4116. 	function messageSend(target,message,funcName,args) {																					// ===> SEND MESSAGE to iframe or parent
  4117. 		let messageObj = { 'messageContent': message, 'functionName': funcName, 'arguments': args };
  4118. 		switch(target) {
  4119. 			case 'iframe': 										getEl('#content_iframe').contentWindow.postMessage( messageObj, '*' ); break;
  4120. 			case 'top_body':									window.parent.postMessage( messageObj,'*'); 											break;
  4121. 		}
  4122. 	}
  4123. 	function messageReceive(e) {																											// ===> RECEIVE MESSAGE from iframe or parent, do appropriate action
  4124. 		if ( e.data.messageContent === 'iframe_loaded' ) { showThis('iframe_loaded',false,true,e.data.arguments); } 
  4125. 		else if ( e.origin === 'null' || e.origin === origin ) { let message = e.data.messageContent, args = e.data.arguments;
  4126. 			switch( message ) {
  4127. 				case 'uiPrefToggle':				uiPrefToggle(args);																				break;
  4128. 				case 'toggleIframeUIPref':			document.body.classList.toggle(args);															break;
  4129. 				case 'set_ui_font':					if ( args !== '' ) { document.body.style.fontFamily = args; } else { document.body.style.fontFamily = null; }	break;	// set iframe ui font
  4130. 				case 'arrow_key_navigation': 		removeClass('body','iframe_edited');	navigateByArrowKey(args); 								break;	// class_name, key
  4131. 				case 'iframe_navigation':			addClass('body','no_hover'); navigateByArrowKey(args);											break;	// get first or last iframe dirlist item
  4132. 				case 'show_sidebar': 				document.body.classList.toggle(getNewUIPref('show_sidebar')[0]);								break;
  4133. 				case 'toggle_menu':		 			menuShow(null,'dir_menu_main_container'); messageSend('iframe','has_top_menu');					break;	// show menu, tell iframe to allow menu arrow navigation
  4134. 				case 'menu_close': 					menuClose();																					break;
  4135. 				case 'has_top_menu':				addClass('#content_body','has_top_menu is_blurred');											break;	// tell iframe top has menu to allow arrow navigation
  4136. 				case 'menu_selection':	case 'menuClick': 	menuClick();																			break;	// show menu
  4137. 				case 'menu_navigation': 			navigateByArrowKey(args);																		break;	// menu navigation from iframe
  4138. 				case 'toggle_invisibles':			getEl('#show_invisibles input').click();	getEl('#show_invisibles input').blur();				break;
  4139. 				case 'blur_top':					addClass('#top_body','focus_content');															break;
  4140. 				case 'focus_top':						 																									// close menus and refocus content or focus sidebar
  4141. 					switch(true) {
  4142. 						case hasClass('#top_body','focus_content') && hasClass('#top_body','has_menu'):	 focusEl('#content_pane');		break;
  4143. 						default:   focusEl('#top_body');																					break;
  4144. 						}																															break;
  4145. 				case 'focus_iframe':				addClass('body','focus_content');																break;	// focusEl('#content_iframe');	break;
  4146. 				case 'theme_light': case 'theme_dark': 																										// toggle iframe UI theme and iframe Text Editor theme
  4147. 					getEl('#content_body').classList.remove('theme_dark','theme_light');
  4148. 					getEl('#content_body').classList.add(message,'texteditor_'+ message);															break;	// change iframe dir theme
  4149. 				case 'show_iframe_parent':			showThis('content_iframe_parent',false,true,args);												break;	// args[0] === item link, args[1] === item kind
  4150. 				case 'show_iframe_dir':				showThis('content_iframe_dir',false,true,args);													break;	// args[0] === item link, args[1] === item kind
  4151. 				case 'show_iframe_file':			showThis('content_iframe_file',false,true,args);												break;	// args[0] === item link, args[1] === item kind
  4152. 				case 'select_iframe_item':			getEl('#'+args)?.classList.add('selected'); scrollThis('#directory_list','.selected',false);	break;
  4153. 				case 'open_iframe_dir_in_sidebar':	window.location = args;																			break;	// tell top to open iframe directory in sidebar; args: iframe dir url
  4154. 				case 'open_iframe_parent_dir':		iframeClick(e,'parent','link',getAttribute('#iframe_parent_link','href'));	 					break;	// getEl('##parent').find('a').click();
  4155. 				case 'close':						clickThis('#close_btn');																		break;	// escape content_iframe and close content
  4156. 				case 'close_content':				showThis('close'); removeClass('body','iframe_edited');  focusEl('#top_body');	break;	// close edited_iframe text after clicking "Save/Don't Save" buttons
  4157. 				case 'reload':						showWarning('resetContent');																	break;	// reload content
  4158. 				case 'resetContent': 				showThis(getEl('.dirlist_item.content_loaded').id); removeClass('body','iframe_edited'); 		break; // reload iframe content after "Save/Don't Save" buttons
  4159. 				case 'showThis':					removeClass('body','iframe_edited');  focusEl('#top_body'); showThis(args);	break;	// show clicked/navigated sidebar item after "Save/Don't Save" buttons
  4160. 				case 'show_numbers': case 'show_invisibles': case 'alternate_background': case 'show_ignored_items': case 'ignore_ignored_items':
  4161. 													getEl('#content_body').classList.toggle(message);												break;	// toggle iframe dir_list UI prefs from main menu:
  4162. 				case 'show_image_thumbnails':		uiPrefImgThumbsToggle(); 																		break;	// toggle image thumbnails in iframe
  4163. 				// AUDIO MESSAGES
  4164. 				case 'iframe_play_pause_media':		mediaPlayPause();																				break;	// tell top to play/pause audio from iframe click
  4165. 				case 'mediaSkip':					mediaSkip(undefined,args);																		break;	// tell top to mediaskip from focused iframe
  4166. 				case 'play_prev_next_iframe_audio': mediaPlayPrevNextIframeItem(args); 																break;	// play next iframe track
  4167. 				case 'close_iframe_audio':			removeClass('.audio_loaded','audio_loaded');													break;	// remove iframe audio loaded class
  4168. 				case 'set_media_duration':			setMediaDuration(args[0],args[1],args[2],true);													break;	// set media durations for subdirs [id, item_sort_kind, duration]
  4169. 				case 'refresh_media_durations':		updateMediaDurations('refresh_media_durations');												break;
  4170. 				// TEXT EDITING MESSAGES
  4171. 				case 'navigateTabKeyFocus':			navigateTabKeyFocus(args[0],args[1]);															break;	// args[0] = kind, args[1] = incr (tab:1,shift+tab:-1)
  4172. 				case 'texteditor_split_view':		uiPrefToggle('texteditor_split_view'); 															break;
  4173. 				case 'iframe_edited':				if ( !hasClass('#top_body','iframe_edited') ) { addClass('#top_body','iframe_edited'); }		break;	// let top know iframe text has been edited
  4174. 				case 'texteditor_toolbar_button':	if ( !isTopWindow() ) { document.body.classList.toggle(args); } else { uiPrefToggle(args); }	break;
  4175. 				case 'clear':						addClass('#top_body','iframe_edited');															break;	// add edited class after clearing text from edited iframe file
  4176. 				case 'save_text':					removeClass('body','iframe_edited'); saveFile(args[0],'text/plain',args[1]);					break;
  4177. 				case 'iframe_text_saved':			removeClass('body','iframe_edited');															break;
  4178. 				case 'toggle_texteditor':			showTextEditor(true);																			break;
  4179. 				case 'unloading':					showWarning('closeContent',args);																break;	// show unsaved changes warning in iframe
  4180. 				case 'reloading':					showWarning('resetContent');																	break;
  4181. 				case 'iframe_loaded':				showThis('iframe_loaded',false,true,args);														break;	// args = [iframe_src,file_name,kind,content]
  4182. 				case 'dirlist_subdir_loaded':	 	subDirInsert(args);																				break;	// when subdirs processed, insert subdirs in dirlist
  4183. 				case 'show_texteditor_preview':		showTexteditorPreview(args);																	break;	// only show previewed text for certain files (e.g., webloc, url)
  4184. 				// OTHERS
  4185. 				case 'local_link': 					showWarning('warning_local_file');					 											break;	// local link warning
  4186. 				case 'iframe_playlist':																														// iframe_playlist
  4187. 					getEls('.dirlist_item.text').forEach( el => el.removeAttribute('data-playlist'));
  4188. 					removeClass('.dirlist_item.text','playlist');
  4189. 					if ( elExists('.dirlist_item.text.selected') ) { getEl('.dirlist_item.text.selected').dataset.playlist = args; }
  4190. 					addClass('.dirlist_item.text.selected','playlist');
  4191. 					break;
  4192. 				case 'setIframePlayerStatus': // for iframe audio playback
  4193. 					if ( args === 'play' ) { removeClass('body','is_paused'); addClass('body','is_playing'); } else { removeClass('body','is_playing'); addClass('body','is_paused'); } break;
  4194. 			}
  4195. 		}
  4196. 	}
  4197.  
  4198. 	// END MESSAGES
  4199. 	//============================//
  4200. 	// WARNINGS
  4201. 	function doFunction(funcName,args) {																									// ===> DO FUNCTION
  4202. 		let funcDictionary = { 'navigateByArrowKey':navigateByArrowKey, 'showThis':showThis, 'dirOpen':dirOpen, 'null':null, 'menuClick':menuClick, 'clickThis':clickThis, 'texteditorClear':texteditorClear,
  4203. 			'closeContent':closeContent, 'showFont':showFont, 'showFontGlyph':showFontGlyph, 'mediaSkip':mediaSkip,
  4204. 			'openSidebarInContentPane':openSidebarInContentPane, 'resetContent':resetContent, 'setLocation':setLocation, 'showDirectorySource':showDirectorySource, 'uiPrefToggle':uiPrefToggle, 'openInTextEditor':openInTextEditor, 'playlistMake':playlistMake,'changeLocation':changeLocation };																		// list of functions to remember and execute after warning button click
  4205. 		return funcName === 'null' ? null : funcDictionary[funcName](args); 																		// return the function and call it with args
  4206. 	}
  4207. 	function showWarning(funcName,args) {																														// ===> SHOW WARNING
  4208. 		switch(true) {
  4209. 			case funcName === null:																																			break;
  4210. 			case ( /warning_make_playlist/.test(funcName) ):	
  4211. 				getEls('#directories_only,#files_only,#audio_files_only,#video_files_only,#media_files_only,#all_non_media_files').forEach(el => el.removeAttribute('disabled')); // setup makeplaylist alert
  4212. 				if ( getEl('.dirlist_item.dir') === null )	{ getEl('#directories_only').disabled = 'disabled'; }	if ( getEl('.dirlist_item.file') === null )			{ getEl('#files_only').disabled = 'disabled'; }
  4213. 				if ( !hasClass('body','has_audio') )		{ getEl('#audio_files_only').disabled = 'disabled'; }	if ( !hasClass('body','has_video') )				{ getEl('#video_files_only').disabled = 'disabled'; }
  4214. 				if ( !hasClass('body','has_media') )		{ getEl('#media_files_only').disabled = 'disabled'; }	if ( getEl('.dirlist_item.non_media') === null )	{ getEl('#all_non_media_files').disabled = 'disabled'; }
  4215. 				openWarning('warning_make_playlist',['warning_btn_ok','warning_btn_cancel'],'playlistMake',args);														break;	// make playlist/filelist
  4216. 			case ( /open_font|open_playlist|close_font|close_playlist/.test(funcName) ): // close playlist or font file; args === close_font, close_playlist; if funcName[close_] === args, close item, else open file
  4217. 				if ( !hasContent('font_file_glyph') && !hasContent('font_specimen') && !hasContent('font_specimen_glyph') && !hasClass('body','has_quicklook') ) 
  4218. 					{ openWarning('warning_'+args,['warning_btn_cancel','warning_btn_ok'],funcName,args); } else { closeFont(); /*i.e., glyphs*/ } 						break;	// close font or font glyphs
  4219. 			case ( /texteditorClear/.test(funcName) ):		openWarning('warning_clear_text',['warning_btn_ok','warning_btn_save','warning_btn_cancel'],funcName);		break;
  4220. 			case ( /non_local_file/.test(funcName) ): 		openWarning('warning_non_local_file',['warning_btn_ok','warning_btn_cancel'],null,args);					break;
  4221. 			case ( /local_file/.test(funcName) ): 			openWarning('warning_local_file',['warning_btn_ok']);														break;
  4222. 			case ( /showThis|closeContent|resetContent|changeLocation|setLocation/.test(funcName) ):				// warnings for various cases
  4223. 				switch(true) {
  4224. 					case !isTopWindow():
  4225. 						switch(true) {
  4226. 							case args?.length === 2: 		openWarning('unloading',['warning_btn_save','warning_btn_dont_save','warning_btn_cancel'],args[0],args[1]); break;	// iframe edited warning for dirlist_item click
  4227. 							default: 						openWarning('unloading',['warning_btn_save','warning_btn_dont_save','warning_btn_cancel'],funcName,args);			// iframe unload warning for close/resetContent
  4228. 						}																																				break;
  4229. 					default: 		doFunction(funcName,[args]);																				break;	// default: perform requested function w/o warning
  4230. 				}
  4231. 				break;
  4232. 			default:
  4233. 				switch(true) {
  4234. 					case hasClass('body','iframe_edited'): 	messageSend('iframe','unloading',funcName,args);									break;	// send unloading message for close or resetContent
  4235. 					case hasClass('body','texteditor_edited') && !/navigateByArrowKey|uiPrefToggle/.test(funcName):	case funcName === 'texteditorClear': 
  4236. 														if ( isTopWindow() ) { removeClass('#content_pane','has_hidden_texteditor'); getEl('#content_pane').dataset.content = 'has_texteditor'; }
  4237. 														openWarning('texteditorClear',['warning_btn_save','warning_btn_dont_save','warning_btn_cancel']);				break;
  4238. 					default: 		doFunction(funcName,args);																						break;
  4239. 				}
  4240. 		}
  4241. 	}
  4242. 	function openWarning(id,buttonids,funcName,args)	{																		// ===> OPEN WARNING
  4243. 		addClass('body','has_warning');    removeAttribute('#warnings_container','class');    addClass('#warnings_container',id);
  4244. 		addClass('#'+id,'show');		   buttonids.forEach( el => addClass('#'+el,'show') );											// show warning buttons and message
  4245. 		getEl('#'+ buttonids[0]).classList.add('focus');																				// focus default warning button
  4246. 		if ( funcName !== undefined )	{ getEl('#warnings_container').dataset.funcname = funcName; }									// store funcName and args to complete after clicking warning button
  4247. 		if ( args !== undefined )		{ getEl('#warnings_container').dataset.args = args; }
  4248. 	}
  4249. 	function closeWarning() { 																										// ===> CLOSE WARNINGS
  4250. 		removeClass('body','has_warning'); getEls('#warnings_container .show,#warnings_container .focus').forEach( el => el.classList.remove('show','focus') ); removeAttribute('#warnings_container',['class','data-funcname']);
  4251. 	}
  4252. 	function warningButtons(id) {																									// ===> WARNING BUTTONs: what to do after warning button click
  4253. 		let funcName = getEl('#warnings_container').dataset.funcname || '', args = getEl('#warnings_container').dataset.args || '';
  4254. 		switch(id) {
  4255. 			case 'warning_btn_save':			 																							// Save/Don't Save Buttons
  4256. 				switch(true) {																												// After clicking Save/Don't Save Button...
  4257. 					case !isTopWindow(): messageSend('top_body',getEl('#warnings_container').dataset.funcname,getEl('#warnings_container').dataset.funcname,[getEl('#warnings_container').dataset.args]); break; // funcName to top
  4258. 					default: removeClass('body','iframe_edited'); doFunction(funcName,args);  focusEl('#top_body');	// remove iframe_edited class; do the function, if any; focus sidebar
  4259. 				}
  4260. 				delete getEl('#warnings_container').dataset.funcname; delete getEl('#warnings_container').dataset.args; 					// remove warnings_container data
  4261. 				if (id === 'warning_btn_save') { getEl('#save_text_link').click(); }												break;	// if id = save button, click save text link
  4262. 			case 'warning_btn_dont_save':	
  4263. 				switch(true) {
  4264. 					case !isTopWindow(): messageSend('top_body','close_content'); 													break;
  4265. 					default: doFunction(funcName,[args,'ok']);
  4266. 				}																													break;
  4267. 			case 'warning_btn_cancel':
  4268. 				switch(true) {
  4269. 					case isTopWindow():		if ( hasClass('body','focus_content') ) {  focusEl('#content_pane'); } else {  focusEl('#top_body'); }	break;	// Cancel Button
  4270. 					case !isTopWindow():
  4271. 						if ( getEl('#warnings_container').dataset.args === 'warning_btn_save' && getEl('#warnings_container').dataset.funcname === 'closeContent' ) { messageSend('top_body','close_content'); } break;
  4272. 				}																													break;
  4273. 			case 'warning_btn_clear':													texteditorClear();							break; 	// Clear text editor
  4274. 			case 'warning_btn_ok':																											// OK Button
  4275. 				switch(true) {
  4276. 					case hasClass('#warnings_container','warning_close_font'):			closeWarning();    openFontFile('close');    
  4277. 						if ( funcName !== args ) { getEl('#'+funcName).click(); } else { getEl('.dirlist_item.selected').click(); }				return;	// close font file, open file by funcName (if funcName !== args)
  4278. 					case hasClass('#warnings_container','warning_close_playlist'):	
  4279. 						closeWarning();    closePlaylist();          closeContent(); if ( funcName !== args ) { getEl('#'+funcName).click(); }	return;	// close playlist, open file by funcName (e.g. close_playlist && open_font)
  4280. 					case hasClass('#warnings_container','warning_local_playlist'):																		// no break; local playlist
  4281. 					case hasClass('#warnings_container','warning_local_file'):																			// no break; local file
  4282. 					case hasClass('#warnings_container','warning_non_local_file'):		open(args,'_blank');									break;	// no break; open non_local file in new window
  4283. 				}
  4284. 				doFunction(funcName,args);																										break;	// do the function, if any, after clicking OK button
  4285. 		}
  4286. 		closeWarning();
  4287. 	}
  4288. 	// END WARNINGS
  4289. 	//============================//
  4290. 	// FINIS! † DEO GRATIAS † //
  4291. })();
  4292.