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Supercharged Local Directory File Browser

Makes file:/// directory ("Index of...") pages (and many server-generated index pages) actually useful. Adds sidebar and preview pane, keyboard navigation, audio and video player, markdown/plain text preview and editing, image and font previews and grid views, sorting, user-defined shortcuts, more.

当前为 2019-02-15 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name              Supercharged Local Directory File Browser
  3. // @version           3.2.0
  4. // @description       Makes file:/// directory ("Index of...") pages (and many server-generated index pages) actually useful. Adds sidebar and preview pane, keyboard navigation, audio and video player, markdown/plain text preview and editing, image and font previews and grid views, sorting, user-defined shortcuts, more.
  5. // @author            Gaspar Schott (Michael Schrauzer) mshroud@gmail.com
  6. // @license           GPL-3.0-or-later
  7. // @homepageURL       https://openuserjs.org/scripts/gaspar_schot/Supercharged_Local_Directory_File_Browser
  8. // @contributionURL   https://paypal.me/mschrauzer
  9. // @include           file://*/
  10. // @include           file://*/?*
  11. // @include          *!localhost*/
  12.  
  13. // @require      https://code.jquery.com/jquery-latest.min.js
  14. // @require      https://cdnjs.cloudflare.com/ajax/libs/markdown-it/8.4.2/markdown-it.js
  15.  
  16.  
  17. // NOTE: By default, userscripts will not run on file:/// urls, so for this script to work, you will have to enable it in your browser extension settings.
  18.    // E.G.: For Tampermonkey in Chrome, go to Chrome the extension page, click the details button on the Tampermonkey pane and check 'Allow access to file URLs'.
  19.    // NOTE: Safari does not allow local directories to be browsed, so the script will not work on local directories, but it will work on remote directories (or on local directories through a local server).
  20. // NOTE: This script was developed in Vivaldi, running on Mac OS Mojave. It has been tested in several other Chrome and Gecko-based browsers.
  21.    // It has been very minimally tested on Windows and not at all on other OSes or browsers. It should work, but please report any issues.
  22.  
  23. // @namespace https://greasyfork.org/users/16170
  24. // ==/UserScript==
  25.  
  26. (function() {
  27.     'use strict';
  28.     var $ = jQuery;
  29.  
  30.     // ***** USER SETTINGS ***** //
  31.  
  32.     const $settings = {
  33.  
  34.         // Paste your exported settings between the two lines below:
  35.         //--------------------------------------------------------//
  36.  
  37.         shortcuts:          // N.B.: Directory links must end with "/", file links must end with another character.
  38.                             // You may add as many menus and links as you like; just copy the example below and edit as needed.
  39.                             // Local directory shortcuts must begin with "file:///"; external shortcuts must begin with the correct protocol ("http://" or "ftp://", etc.).
  40.                             // Hint: you can add query strings to your urls to override user settings on a site by site basis.
  41.                             // Note that because of same-origin security concerns, the browser will not allow you to navigate from an external webpage to a local directory.
  42.                             // (But see this page for possible workarounds: https://stackoverflow.com/questions/39007243/cannot-open-local-file-chrome-not-allowed-to-load-local-resource)
  43.                               [
  44.                                   {
  45.                                   "menu_title":"My Sample Menu",
  46.                                   "links":
  47.                                       [
  48.                                           { "link_name":"My Directory Link 1", "link":"file:///Path/To/My/Directory/" },
  49.                                           { "link_name":"My Directory Link 2", "link":"file:///Path/To/My/Directory_2/" },
  50.                                           { "link_name":"My External Link", "link":"https://www.mywebpage.com/" },
  51.                                           { "link_name":"My File Link", "link":"file:///Path/To/My/File.ext" },
  52.                                       ]
  53.                                   },
  54.                                   {
  55.                                   "menu_title":"My Second Sample Menu",
  56.                                   "links":
  57.                                       [
  58.                                           { "link_name":"My Directory Link 1", "link":"file:///Path/To/My/Directory/" },
  59.                                           { "link_name":"My Directory Link 2", "link":"file:///Path/To/My/Directory_2/" },
  60.                                           { "link_name":"My External Link", "link":"https://www.mywebpage.com/" },
  61.                                           { "link_name":"My File Link", "link":"file:///Path/To/My/File.ext" },
  62.                                       ]
  63.                                   },
  64.                               ],
  65.  
  66.        UI_font:              // Choose an installed font for the UI.
  67.                              'lucidagrande, sans-serif',
  68.        UI_font_size:         // Choose a default UI font size; use any standard CSS units.
  69.                              '13px',
  70.        alternate_background: // If true (default true), alternate sidebar row background color.
  71.                              true,
  72.        ignore_files:         // If true (default), ignored files (see "$row_settings" below, after Keybindings and Changelog) will be greyed-out (default) in the file list and will not be loaded in the content pane when selected;
  73.                              // If false, they will be treated as normal files, so if they are selected, the browser will attempt to download any file types it can't handle (which makes keyboard navigation inconvenient).
  74.                              true,
  75.        hide_ignored_files:   // If true, ignored files will be completely hidden from the file list;
  76.                              // If false (default), ignored files will appear greyed-out.
  77.                              false,
  78.        hide_invisibles:      // Un*x/Mac OS only: If true (default), files or directories beginning with a "." will be hidden.
  79.                              true,
  80.        hide_details:         // If true (default), hide file and directory details; if false, show them.
  81.                              true,
  82.        default_sort:         // Choose from: 'name', 'size', 'date', 'kind', 'ext', 'default'.
  83.                              // default = Chrome sorting: dirs on top, files alphabetical.
  84.                              'default',
  85.        dirs_on_top:          // If true, directories will always be listed firs except when sorting by "name" (since otherwise sorting by "name" would equal "default").
  86.                              // If false (default), directories and files will be sorted together. (In practice, dirs will typically still be separated when sorting by size, kind, and extension.)
  87.                              false,
  88.        apps_as_dirs:         // Un*x/Mac OS only: if true, treat apps as directories; allows app contents to be browsed. This is the default behavior for Chrome.
  89.                              // If false (default), treat apps as ignored files.
  90.                              false,
  91.        dark_theme:            // If true (default: false), gives the content pane a dark background, and inverts html and text content.
  92.                              false,
  93.        grid_image_size:      // Default = 150
  94.                              150,
  95.        grid_font_size:       // Default = 1
  96.                              1,
  97.        autoload_media:       // If true (defautl: true), the first audio or video file found in a directory will be automatically selected and loaded for playback; also, cover art (if any, will be loaded in the preview pane).
  98.                              true,
  99.        autoload_index_files: // If true (default: false), automatically select first "index.ext" file found in directory.
  100.                              false,
  101.        use_custom_icons:     // if true (default), use custom icons for dirs and files
  102.                              // if false, use browser/server default icons
  103.                              true,
  104.                              // TEXT EDITING SETTINGS
  105.        preview_text:         // If true (default), show rendered plain text and markdown file load;
  106.                              // if false, show editable source text on file load.
  107.                              // Note that split_view = true overrides this setting.
  108.                              true,
  109.        split_view:            // If true (default: false), show split view on plain text file load
  110.                               // if false, use default preview_text setting.
  111.                              false,
  112.        sync_scroll:            // Sync scrolling in split view.
  113.                              false
  114.         //--------------------------------------------------------//
  115.         // Paste your exported settings between the above two lines.
  116.     }
  117.  
  118.     // $ROW_TYPES:
  119.     // DO NOT DELETE ANY EXISTING CATEGORIES!
  120.     // Add file extensions for sorting and custom icon display to the existing categories.
  121.     // You can also define your own new categories, but do not add an extension to more than one row_type category.
  122.     // Do not add leading "." to the extensions.
  123.     const $row_types = {
  124.         // myCategory: ['ext1','ext2',],
  125.         dir:      ['/'],
  126.         app:      ['app/','app','exe','msi'],
  127.         archive:  ['zip','rar','cbr','7z','tar','gz','dmg','pkg','archive'],
  128.         audio:    ['mp3','m4a','aac','aif','aiff','ape','flac','ogg','wav'],
  129.         font:     ['otf','ttf','woff','woff2','afm','pfb','pfm','tfm'],
  130.         graphics: ['indd','idml','indt','icml','ai','eps','pages','qxp','qxb','qxd','mif','sla','dtp','pmd','pub','fm','book','inx'],
  131.         htm:      ['htm','html','xhtm','xhtml'],
  132.         image:    ['jpg','jpeg','png','apng','gif','bmp','webp','svg','tif','tiff','psd','raw','dng','cr2','nef','arw'],
  133.         markdown: ['md','markdown','mdown','mkdn','mkd','mdwn','mdtxt','mdtext'],
  134.         office:   ['doc','docx','epub','xls','xlsx','xlm','odt','odf','rtf'],
  135.         pdf:      ['pdf'],
  136.         text:     ['txt','log','nfo'],
  137.         code:     ['bak','bash','c','cnf','codes','conf','csh','cshrc','css','default','dist','example','gemspec','h','hd','ini','js','json','jsx','less','list','local','lock','login','logout','lua','old','php','pl','plist','pth','py','rb','rc','rdoc','sass','sh','strings','tcl','xml','yaml','yml'],
  138.         video:    ['mpeg','mov','m4v','webm','mp4'],
  139.     };
  140.  
  141.     // $ROW_SETTINGS: Ignore or Exclude files by extension
  142.     const $row_settings = {
  143.         ignore: // Files with these extensions will not be loaded if selected in the sidebar (prevents the browser from attempting to download the file).
  144.         ['exe','doc','docx','rtf','xls','xlsx','odt','odp','csv','msi','dll','indd','idml','pages','numbers','tif','tiff','raw','dng','cr2','nef','arw','eps','psd','ai','afm','pfb','pfm','tfm','zip','pkg','swf','pls','ics','DS_Store','ds_store','ds_store','alias','dmg','gz','qxp','icon.jpg','thumbs.db','ape','srf','epub'],
  145.         exclude: // Files with these exensions will not be inverted in dark mode
  146.         ['htm','html','xhtm','xhtml'],
  147.     };
  148.  
  149.    // ***** END USER SETTINGS ***** //
  150.  
  151.     // FEATURES INCLUDE
  152.     // Resizable sidebar and file preview pane.
  153.     // Keyboard navigation in sidebar.
  154.     // Sort files in sidebar.
  155.     // Preview all file types supported by browser (html, text, images, pdf, audio, video) plus fonts.
  156.     // Preview and edit markdown and plain text files.
  157.     // Audio and video playback, with shuffle, loop, skip ahead and behind; view other files in directory while playing audio.
  158.     // Grid view for images and fonts.
  159.     // Light and Dark theme.
  160.     // Show/Hide file details.
  161.     // User-definable bookmarks for directories.
  162.     // User settings for various UI features.
  163.  
  164.     // KEYBINDINGS (These don't work in all browsers):
  165.  
  166.     // Arrow Up/Down: Select prev/next item. If audio is playing, and prev/next file is also audio, it will be selected but not loaded in the audio player; press return to load it.
  167.     // Arrow Left/Right: Select prev/next row of the same kind as the current selection, except if current selection is a media file, select and begin playback of that item.
  168.     // Cmd/Ctrl + Arrow Up: Go to parent directory
  169.     // Opt/Alt + Arrow Left/Right: Skip audio ±10s
  170.     // Shift + Opt/Alt + Arrow Left/Right: Skip audio ±30s
  171.     // Space: Pause/Play media files
  172.     // Return: Open selected directory, select file, or pause/play media.
  173.     // Cmd/Ctrl + D: Toggle file details (size, date modified) in some index page types.
  174.     // Cmd/Ctrl + G: Show or Reset Grid
  175.     // Cmd/Ctrl + I: Toggle Invisibles
  176.     // Cmd/Ctrl + Shift + O: Open selected item in new window/tab
  177.     // Cmd/Ctrl + R: Reload grids and previewed content, reset scaled images/fonts, reset media files to beginning.
  178.     // Cmd/Ctrl + W: Close previewed content (doesn't work in all browsers; use close button instead), or close window if no content is being previewed.
  179.     // Cmd/Ctrl + Shift + </>: Scale preview items and grids.
  180.  
  181.     // CHANGELOG:
  182.  
  183.     //• 3.2.0
  184.     //• NEW!: Preview, edit, and save Markdown and plain-text files. (Now how much would you pay? Or donate?)
  185.     //•       Basic Markdown syntax is rendered via markdownit.js (https://github.com/markdown-it/markdown-it).
  186.     //•       View editable source text or rendered HTML preview, or both in split pane.
  187.     //•       Live preview of source edits in split-pane view.
  188.     //•       Render Checkboxes/Checklists with [x] and [ ], with live updating of source text.
  189.     //•       Save edited source text or rendered HTML.
  190.     //•       More to come.
  191.     //•       Caveat: You must manually save your work if you want to keep it; autosave is not possible.
  192.     //•               Moreover, because of security concerns with local files, the editing iframe cannot communicate with the parent index page, or vice versa.
  193.     //•               * It is therefore entirely possible to navigate away from the page and LOSE YOUR WORK. *
  194.     //•               To help prevent loss of work, the script will attempt to warn you when the editing pane loses focus (if you have made any edits),
  195.     //•               e.g., when you click in the script sidebar or in the browser UI, or when the browser tab/window or the browser itself loses focus.
  196.     //•               But note that if the editing pane is already unfocused, the warning will not be issued.
  197.     //• ADDED: New user settings: set default view for markdown/text files: source or preview, or split pane view. See user settings for details.
  198.     //• IMPROVED: Plain text and code file type detection.
  199.     //• CHANGED: Treat files without extensions as text (code) files. (Extension-less binary files will still initiate a download.)
  200.     //• FIXED: Malformed URI error if file name included "%".
  201.     //• FIXED: Some issues with image zoom.
  202.     //• FIXED: An issue with content pane sizing.
  203.     //• FIXED: An issue with parent directory navigation.
  204.  
  205.     //• 3.1.4
  206.     //• FIXED: Up and down arrow navigation didn't work properly if audio and video files were present in the same directory.
  207.     //• FIXED: Prev/Next buttons in audio player weren't working.
  208.     //• FIXED: Content pane didn't resize when audio player was closed.
  209.     //• CHANGED: If autoload_media = false, don't autoload cover art when next audio track loads.
  210.     //• IMPROVED: Better support for certain server-generated index pages.
  211.  
  212.     //• 3.1.3
  213.     //• FIXED: Directories weren't being sorted properly because ending "/" was being considered.
  214.  
  215.     //• 3.1.2
  216.     //• FIXED: Light theme image grid items had transparent backgrounds.
  217.  
  218.     //• 3.1.1
  219.     //• CHANGED: If autoload_media = false, don't select anything.
  220.     //• FIXED: Image grid columns weren't flexing to fill width.
  221.  
  222.     //• 3.1.0
  223.     //• Improved font and image grid previews: added unstyled file names for clarity, file names are no longer lowercased, and dashes and underscores are replaced with spaces.
  224.     //• Various small UI tweaks.
  225.  
  226.    //• 3.0.0
  227.     //• NEW: Support for video playback (finally!). Default supported video extensions: .mpeg, .mov, .m4v, .webm, .mp4 (add additional extensions below in $row_types > video).
  228.     //• IMPROVED: Cover art auto-selection: files with "back" in the name will be ignored and files with "front" or "cover" in the name will be selected.
  229.     //• IMPROVED: Directory preview styling.
  230.     //• IMPROVED: Better support for Firefox.
  231.     //• ADDED: "Autoload media" menu item.
  232.     //• CHANGED: "autoload_audio" renamed to "autoload_media"; if you export your user settings, please this update this item accordingly when you paste them back in.
  233.     //• CHANGED: Completely reworked arrow navigation and autoload_media behavior because previous behavior was confusing.
  234.       //• Up/Down Arrows will now always select the prev/next row.
  235.         //• If the audio player is not visible, it will be displayed and the selected audio file will be loaded for playback.
  236.         //• If audio is playing and the prev/next selected file is also audio, it will be selected but not loaded, so that the currently playing audio will not be interrupted. (Press return/enter to load and begin playback of selected audio.)
  237.         //• Selecting audio files deselects video files and closes video player.
  238.         //• Selecting video files deselects audio files and closes audio player.
  239.       //• Left/Right Arrows will now always select the prev/next row of the same sort kind as the currently selected file, except:
  240.         //• if the current selection is an audio file, the L/R arrows will select and begin playback of that selection.)
  241.         //• Note that if the current selection is _not_ an audio file, any currently playing audio will continue without interruption.
  242.     //• FIXED: Media files did not scroll into view when next file began playing.
  243.     //• CHANGED: Autoload cover art now works irrespective of "autoload_media" setting.
  244.     //• IMPROVED: Left/Right arrow navigation will select prev/next dir or row if there are no media, image, or font files are in the directory.
  245.     //• IMPROVED: You can now close previewed content and audio files separately from each other.
  246.     //• CHANGED: Audio file titles shown separately from other file or dir titles.
  247.     //• IMPROVED: Added string normalization for navigation by typed string: accented characters will be matched by their base ASCII letter (e.g., á = a, Ñ = n, ß = s, etc.).
  248.     //• IMPROVED: Added "other" sort category for files whose extensions are not listed in $row_types.
  249.     //• FIXED: Parent links were incorrectly formatted.
  250.     //• FIXED: Arrow buttons in preview pane were not working properly. Now, if an image or font is displayed, clicking the arrows will select the prev/next image or font file.
  251.     //• ADDED: Contact link in shortcuts menu
  252.     //• FIXED: "Donate" link.
  253.     //• Fixes for various style glitches introduced in the last version.
  254.     //• Many, many small fixes.
  255.     //• CHANGED: moved $row_types to just below user settings, for easier management and updates.
  256.     //• Internal: Reorganized, abstracted, and DRYed many functions; added more comments.
  257.  
  258.     // ***** GENERAL SETUP ***** //
  259.  
  260.     // ************************************ //
  261.     // DON'T EDIT ANYTHING BELOW THIS LINE. //
  262.     // ************************************ //
  263.  
  264.        const $userAgent = navigator.userAgent;
  265.  
  266.    // PATHS
  267.    // Fix "%" error in file name; see https://stackoverflow.com/questions/7449588/why-does-decodeuricomponent-lock-up-my-browser
  268.     function decodeURIComponentSafe(uri, mod) {
  269.         var out = new String(), arr, i = 0, l, x;
  270.         typeof mod === "undefined" ? mod = 0 : 0;
  271.         arr = uri.split(/(%(?:d0|d1)%.{2})/);
  272.         for (l = arr.length; i < l; i++) {
  273.             try {
  274.                 x = decodeURIComponent(arr[i]);
  275.             } catch (e) {
  276.                 x = mod ? arr[i].replace(/%(?!\d+)/g, '%25') : arr[i];
  277.             }
  278.             out += x;
  279.         }
  280.         return out;
  281.     }
  282.    var $href = decodeURIComponentSafe(window.location.href); // complete URL including query string: http://www.host.com/path/to/my_dir/?query_string
  283.    var $location = decodeURIComponentSafe( [location.protocol, '//', location.host, location.pathname].join('') );
  284.    var $location_arr = $location.split('/');
  285.    var $current_dir_path = $location.replace(/\//g,'/<wbr>').replace(/_/g,'_<wbr>').replace(/—/g,'—<wbr>').replace(/\\/g,'/'); // URL w/o query string for display
  286.    var $current_dir_name = $location.replace(/%20/g,' ').slice(0,-1);
  287.        $current_dir_name = $current_dir_name.slice($current_dir_name.lastIndexOf('/') + 1); // Dir name without parents for display: "my_dir"
  288.  
  289.    // QUERY PREFS
  290.    var getQueryPrefs = function() { return new URLSearchParams( window.location.search ); };
  291.    var $query_prefs = getQueryPrefs();
  292.    var $UI_pref_width = $query_prefs.get('width') === null ? '25' : (Math.round(100*($query_prefs.get('width'))/window.innerWidth)).toString(); // number string
  293.    var $UI_pref_theme = $query_prefs.get('dark_theme') === null ? $settings.dark_theme : JSON.parse( $query_prefs.get('dark_theme') ); // bool
  294.    var $UI_pref_background = $query_prefs.get('alternate_background') === null ? $settings.alternate_background : JSON.parse( $query_prefs.get('alternate_background') ); // bool
  295.    var $UI_pref_details = $query_prefs.get('hide_details') === null ? $settings.hide_details : JSON.parse( $query_prefs.get('hide_details') );
  296.    var $UI_pref_sort = $query_prefs.get('sort') === null ? $settings.default_sort.toLowerCase() : $query_prefs.get('sort');
  297.    var $UI_pref_file = $query_prefs.get('file') === null ? '' : $query_prefs.get('file');
  298.    var $UI_pref_autoload_media = $query_prefs.get('autoload_media') == null ? $settings.autoload_media : JSON.parse( $query_prefs.get('autoload_media') );
  299.    var $UI_pref_split_view = $settings.split_view;
  300.    var $UI_pref_preview_text = $settings.preview_text;
  301.    // var $UI_pref_invisibles = $query_prefs.get('hide_invisibles') == null ? $settings.hide_invisibles.toLowerCase() : $query_prefs.get('hide_invisibles');
  302.    var $UI_pref_selected = $query_prefs.get('selected') === null ? '' : JSON.parse( $query_prefs.get('selected') );
  303.    var $UI_pref_history = $query_prefs.get('history') === null ? '' : $query_prefs.get('history');
  304.    var $UI_pref_history_arr;
  305.    var $grid_image_size = $settings.grid_image_size ? $settings.grid_image_size : 150;
  306.    var $grid_font_size = $settings.grid_font_size ? $settings.grid_font_size : 1;
  307.    // set query key/value
  308.  
  309.    function setQuery(key, value) {
  310.       $query_prefs = getQueryPrefs();
  311.       $query_prefs.set( key, value );
  312.       updateQuery();
  313.    }
  314.    // toggle query key
  315.    function toggleQuery(key) {
  316.       var value;
  317.       $query_prefs = getQueryPrefs();
  318.       value = $query_prefs.has(key) ? JSON.parse( $query_prefs.get(key) ) : $settings[key];
  319.       value === true ? $query_prefs.set( key, 'false' ) : $query_prefs.set( key, 'true' );
  320.       updateQuery();
  321.    }
  322.    // update query string
  323.    function updateQuery() {
  324.       $query_prefs = decodeURIComponent($query_prefs);
  325.       window.history.replaceState({}, document.title, window.location.pathname +'?'+ $query_prefs);
  326.    }
  327.  
  328.     // Styles for iFrame Directory Index pages
  329.     const $fileName = window.location.pathname.slice(window.location.pathname.lastIndexOf('/') + 1);
  330.     const $textFiles = $row_types.markdown.concat($row_types.text, $row_types.code);
  331.  
  332.     if ( ( window.frameElement !== null || window.top !== window.self ) && window.location.href.endsWith('/') ) {
  333.  
  334.       const $custom_iframe_styles = document.createElement("style");
  335.       var $iframe_styles = '';
  336.  
  337.       $iframe_styles += 'a.up' +
  338.          '{ background:transparent; }';
  339.       $iframe_styles += ':root, html, body' +
  340.          '{ background-color:#BBB; }';
  341.       $iframe_styles += 'body > table > thead, body > table > tbody > tr, body ul li' +
  342.          '{ background:rgba(221,221,221,0.5); }';
  343.       $iframe_styles += 'body > table > tbody > tr:nth-of-type(odd), body > ul > li:nth-of-type(odd)' +
  344.          '{ background:rgba(221,221,221,1); }';
  345.       $iframe_styles += 'body > table > tbody > tr:hover, body > ul > li:hover:not(:first-of-type)' +
  346.          '{ background:#ABABAB; }';
  347.  
  348.       $iframe_styles += ':root, html, body' +
  349.          '{ border:0 !important; }';
  350.       $iframe_styles += 'body > table' +
  351.          '{ border-top:solid 1px #888888; }';
  352.       $iframe_styles += 'body > ul > li:first-of-type' +
  353.          '{ border-bottom:solid 1px #888888; }';
  354.       $iframe_styles += 'html, body' +
  355.          '{ border-radius:0; }';
  356.       $iframe_styles += 'body > table' +
  357.          '{ border-collapse:collapse; }';
  358.       $iframe_styles += 'html, body' +
  359.          '{ box-sizing:border-box; }';
  360.  
  361.       $iframe_styles += '#parentDirLinkBox span' +
  362.          '{ color:transparent; }';
  363.       $iframe_styles += 'a:hover' +
  364.          '{ color:#000000; }';
  365.       $iframe_styles += 'a, #parentDirLinkBox span:before' +
  366.          '{ color:#111111; }';
  367.  
  368.       $iframe_styles += '#parentDirLinkBox span:before' +
  369.          '{ content:"Parent Directory"; }';
  370.  
  371.       $iframe_styles += '#UI_goUp a.up:before' +
  372.           '{ display:none; }';
  373.       $iframe_styles += 'a, li' +
  374.          '{ display:block; }';
  375.       $iframe_styles += '#UI_goUp, #UI_showHidden' +
  376.           '{ display:inline-table; }';
  377.  
  378.       $iframe_styles += 'body > table table a:before' +
  379.          '{ float:left; }';
  380.  
  381.        $iframe_styles += ':root, html, body, *' +
  382.          '{ font-family:'+ $settings.UI_font +'; }';
  383.       const $font_size_units = $settings.UI_font_size.replace(/\d*/,'');
  384.       $iframe_styles += 'html, body' +
  385.          '{ font-size:'+ parseFloat($settings.UI_font_size) * 0.875 + $font_size_units +'; }';
  386.       $iframe_styles += 'body > div, body > table, thead, body p' +
  387.          '{ font-size: 1em; }';
  388.       $iframe_styles += 'body > ul > li:first-of-type, #parentDirLinkBox span:before, #UI_goUp a' +
  389.          '{ font-weight:bold; }';
  390.  
  391.       $iframe_styles += 'html' +
  392.          '{ height:100%; }';
  393.       $iframe_styles += 'body' +
  394.          '{ height:auto; }';
  395.       $iframe_styles += '#UI_goUp, #UI_showHidden, #UI_showHidden label' +
  396.           '{ height:1.5em !important; }';
  397.  
  398.       $iframe_styles += 'body > table > tbody > tr, body > ul > li' +
  399.           '{ line-height:1.5; }';
  400.       $iframe_styles += '#UI_goUp, #UI_showHidden' +
  401.           '{ line-height:2; }';
  402.  
  403.        $iframe_styles += 'body > ul' +
  404.          '{ list-style:none; }';
  405.  
  406.       $iframe_styles += 'html, body, body div, body > ul > li a, #UI_goUp, #UI_showHidden, #parentDirLink, #parentDirLinkBox' +
  407.          '{ margin:0; }';
  408.       $iframe_styles += 'body > div' +
  409.          '{ margin:1em; }';
  410.       $iframe_styles += 'body p' +
  411.          '{ margin:1rem; }';
  412.       $iframe_styles += 'body > ul > li' +
  413.          '{ margin-bottom:0; }';
  414.       $iframe_styles += '.up' +
  415.          '{ margin-inline-start:0; }';
  416.        $iframe_styles += '.dir::before, .file > img' + // firefox
  417.            '{ margin-inline-end: 6px; }';
  418.  
  419.       $iframe_styles += ':root, html, body, body > div, body > ul > li, .up' +
  420.          '{ padding:0; }';
  421.  
  422.       $iframe_styles += 'body > table > tbody > tr > td, body > table > thead > tr > th, body > ul > li a, #parentDirLinkBox, #UI_goUp, #UI_showHidden' +
  423.          '{ padding-top:3px; }';
  424.  
  425.       $iframe_styles += 'body > table > tbody > tr > td:first-of-type, body > table > thead > tr > th:first-of-type, body > ul > li a' +
  426.          '{ padding-right:0; }';
  427.       $iframe_styles += 'body > table th:last-of-type, body > table > tbody > tr > td:last-of-type, body > ul > li a, #parentDirLinkBox, #UI_showHidden' +
  428.          '{ padding-right:1em; }';
  429.  
  430.        $iframe_styles += '#parentDirLinkBox' +
  431.          '{ padding-bottom:0; }';
  432.       $iframe_styles += 'body > table > tbody > tr > td, body > table > thead > tr > th, body > ul > li a, #parentDirLinkBox, #UI_goUp, #UI_showHidden' +
  433.          '{ padding-bottom:3px; }';
  434.  
  435.        $iframe_styles += 'body > ul' +
  436.          '{ padding-left:0; }';
  437.       $iframe_styles += 'body > table > tbody > tr > td:first-of-type, body > table > thead > tr > th:first-of-type, body > ul > li a, #parentDirLinkBox, #UI_goUp' +
  438.          '{ padding-left:1em; }';
  439.  
  440.        $iframe_styles += 'th:not(:first-of-type)' +
  441.          '{ text-align:right; }';
  442.        $iframe_styles += 'th:first-of-type' +
  443.          '{ text-align:left; }';
  444.       $iframe_styles += 'a, a:hover, td:hover, li:hover' +
  445.          '{ text-decoration:none !important; }';
  446.        $iframe_styles += 'a.icon' +
  447.          '{ text-indent:2px; }';
  448.  
  449.       $iframe_styles += '#UI_goUp, #UI_showHidden' +
  450.           '{ vertical-align:middle; }';
  451.  
  452.        $iframe_styles += 'html, body, body > table' +
  453.          '{ width:100%; }';
  454.       $iframe_styles += 'thead th:first-of-type' +
  455.          '{ width:50%; }';
  456.       $iframe_styles += 'html, body' +
  457.          '{ max-width:100%; }';
  458.       $iframe_styles += 'html, body' +
  459.          '{ min-width:100%; }';
  460.       $iframe_styles += 'body table tr, body ul li, body > table > tbody > tr:hover' +
  461.          '{ outline:0; }';
  462.  
  463.       $('body').css({'font-family':$settings.UI_font});
  464.       $('body > h1, address, body > hr').remove();
  465.       $('body > table > tbody').find('hr').closest('tr').remove();
  466.       $('body > table th:contains("Name")').css({'text-align':'left'});
  467.       $('body > table th:contains("Size")').css({'text-align':'right'});
  468.       // pre type
  469.       if ( $('body > pre').length ) {
  470.          let $list_items = $('body pre').html();
  471.          let $parent_dir = $('body pre').find('a:contains("Parent")').first().attr('href');
  472.          $list_items = '<table>' + $list_items.replace(/<a.+?>Parent Directory<\/a>/,'').replace(/^\s*<a.+?<\/a><hr>/g,'').replace(/<a /g,'<tr><td><a ').replace(/\r/g,'</td></tr>').replace(/\s{2,}/g,'</td><td>') + '</table>';
  473.          $('body').empty().append($list_items).find('tr:first-of-type').remove();
  474.          $('body').prepend('<div id="parentDirLinkBox"><a href="'+ $parent_dir +'">Parent Directory</a></div>');
  475.  
  476.       }
  477.  
  478.       $custom_iframe_styles.appendChild(document.createTextNode(""));
  479.       $custom_iframe_styles.append($iframe_styles);
  480.       document.head.appendChild($custom_iframe_styles);
  481.  
  482.       return;
  483.        // MARKDOWN FILES $row_types.markdown
  484.    } else if ( ( window.frameElement !== null || window.top !== window.self ) && ( $textFiles.includes( window.location.href.slice( window.location.href.lastIndexOf('.') +1 ) ) ) ) {
  485.        const $custom_iframe_MDstyles = document.createElement("style");
  486.  
  487.        var $iframe_MDstyles = '';
  488.        $iframe_MDstyles += 'body' +
  489.            '{ margin:0;padding:32px 0 0; font-size:1rem; position:relative; }';
  490.        $iframe_MDstyles += 'body #source:focus' +
  491.            '{ outline:none; background:white; }';
  492.        $iframe_MDstyles += 'body #source, body #preview' +
  493.            '{ margin:0; padding:1rem; height:100%; box-sizing:border-box; position:relative; z-index:1; font-size:1rem; border:0; overflow-y:scroll; }';
  494.        $iframe_MDstyles += 'body.preview:not(.split) #source, body.source:not(.split) #preview, li#saveBtn div, .comment' +
  495.            '{ display:none; }';
  496.        $iframe_MDstyles += 'body.split #preview, body.split #source' +
  497.            '{ width:50%; float:left; }';
  498.        $iframe_MDstyles += 'body.split' +
  499.            '{ background-image:linear-gradient(to right,#EEE, #EEE 50%,white 50%, white 100%); }';
  500.        $iframe_MDstyles += 'body.split:before' +
  501.            '{ content:""; width:1px; position:fixed; top:0; bottom:0; left:50%; background:#AAA; }';
  502.  
  503.        // buttons
  504.        $iframe_MDstyles += '#buttons' + //ul
  505.            '{ margin:-32px 0 0; padding:0; display:block; width:100%; position:fixed; z-index:100; background:#EEE; border-bottom: solid 1px #999; font-size:0.875em; -webkit-user-select: none; -moz-user-select: none; user-select:none; }';
  506.        $iframe_MDstyles += '#buttons li' +
  507.            '{ margin:4px; padding:4px; width:3.5em; height:100%; display:block; opacity:0.5; list-style-type:none; cursor:pointer; }';
  508.        $iframe_MDstyles += '#buttons li:hover, body.preview:not(.split) #buttons li#showPreview, body.source:not(.split) #buttons li#showSRC, body.split #buttons li#toggleSplit' +
  509.            '{ opacity:1; }';
  510.        $iframe_MDstyles += '#buttons li#toggleSplit' + // toggle split
  511.            '{ float:left; width:16px; height: 16px; margin: 4px 0 4px 4px; background:url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\'  width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' enable-background=\'new 0 0 16 16\' xml:space=\'preserve\'><path fill=\'%23444444\' d=\'M0,0v16h16V0H0z M15,15H8.5V1H15V15z M7.5,15H1V1h6.5V15z\'/></svg>") center no-repeat; }';
  512.        $iframe_MDstyles += '#buttons li#syncScroll' + // sync scroll
  513.            '{ width:8em; float:left; opacity:1; }';
  514.        $iframe_MDstyles += '#buttons li#syncScroll label' + // sync scroll
  515.            '{ width:8em; display:block; font-size:0.875em; line-height:1.5; }';
  516.        $iframe_MDstyles += '#buttons li#showSRC' + // show source
  517.            '{ float:left; width:16px; height: 16px; margin: 4px 0 4px 8px; background:url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\'  width=\'42px\' height=\'16px\' viewBox=\'0 0 42 16\' enable-background=\'new 0 0 42 16\' xml:space=\'preserve\'><g> <path fill=\'%23444444\' d=\'M0.08,7.02L5.94,3.9l0.43,0.78L1.18,7.42l5.19,2.74l-0.43,0.78L0.08,7.82V7.02z\'/> <path fill=\'%23444444\' d=\'M7.84,16.01H6.82L13.78,0h1.02L7.84,16.01z\'/> <path fill=\'%23444444\' d=\'M21.75,7.87l-5.86,3.12l-0.43-0.78l5.19-2.74l-5.19-2.74l0.43-0.78l5.86,3.12V7.87z\'/> <path fill=\'%23444444\' d=\'M30.98,2.65h-3.63V1.58h8.55v1.07h-3.63v9.65h-1.28V2.65z\'/> <path fill=\'%23444444\' d=\'M36.38,4.71h1.3l0.42-2h0.8v2h2.45v0.99h-2.45v4.63c0,0.74,0.27,1.15,0.96,1.15c0.43,0,1.09-0.21,1.39-0.35  l0.18,0.95c-0.42,0.26-1.18,0.45-1.81,0.45c-1.36,0-1.94-0.7-1.94-2.19V5.71h-1.3V4.71z\'/></g></svg>") left 5px no-repeat; }';
  518.        $iframe_MDstyles += '#buttons li#showPreview' + // show preview
  519.            '{ float:left; width:16px; height: 16px; margin: 4px 0 4px 4px; background:url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\'  width=\'42px\' height=\'16px\' viewBox=\'0 0 42 16\' enable-background=\'new 0 0 42 16\' xml:space=\'preserve\'><g> <path fill=\'%23444444\' d=\'M0.08,7.02L5.94,3.9l0.43,0.78L1.18,7.42l5.19,2.74l-0.43,0.78L0.08,7.82V7.02z\'/> <path fill=\'%23444444\' d=\'M7.84,16.01H6.82L13.78,0h1.02L7.84,16.01z\'/> <path fill=\'%23444444\' d=\'M21.75,7.87l-5.86,3.12l-0.43-0.78l5.19-2.74l-5.19-2.74l0.43-0.78l5.86,3.12V7.87z\'/> <path fill=\'%23444444\' d=\'M30.98,2.65h-3.63V1.58h8.55v1.07h-3.63v9.65h-1.28V2.65z\'/> <path fill=\'%23444444\' d=\'M36.38,4.71h1.3l0.42-2h0.8v2h2.45v0.99h-2.45v4.63c0,0.74,0.27,1.15,0.96,1.15c0.43,0,1.09-0.21,1.39-0.35  l0.18,0.95c-0.42,0.26-1.18,0.45-1.81,0.45c-1.36,0-1.94-0.7-1.94-2.19V5.71h-1.3V4.71z\'/></g></svg>") -24px 5px no-repeat; }';
  520.        // Save button
  521.        $iframe_MDstyles += '#buttons li#saveBtn' + // show preview
  522.            '{ float:right; width:20px; height: 16px; background: url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\'  width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' enable-background=\'new 0 0 16 16\' xml:space=\'preserve\'><g> <path fill=\'%23444444\' d=\'M16,0v10.02h-1.33V1.33H1.33v8.69H0V0H16z\'/> <path fill=\'%23444444\' d=\'M8.47,16h-0.7l-3.08-3.08l0.94-0.94l1.83,1.83V4.28h1.33v9.53l1.81-1.82l0.94,0.93L8.47,16z\'/></g></svg>") 8px 4px no-repeat; position:relative; }';
  523.        $iframe_MDstyles += 'body.edited #buttons li#saveBtn' + // show preview
  524.            '{  background: url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\'  width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' enable-background=\'new 0 0 16 16\' xml:space=\'preserve\'><g> <path fill=\'%23BB3333\' d=\'M16,0v10.02h-1.33V1.33H1.33v8.69H0V0H16z\'/> <path fill=\'%23BB3333\' d=\'M8.47,16h-0.7l-3.08-3.08l0.94-0.94l1.83,1.83V4.28h1.33v9.53l1.81-1.82l0.94,0.93L8.47,16z\'/></g></svg>") 8px 4px no-repeat; position:relative; }';
  525.        $iframe_MDstyles += '#buttons li#saveBtn div' + // show preview
  526.            '{ position:relative; top:-9px; left:-24px; color:#999; text-align:right; }';
  527.        $iframe_MDstyles += '#buttons li#saveBtn:hover div' + // show preview
  528.            '{ display:block; }';
  529.        $iframe_MDstyles += '#buttons li#saveBtn span' + // show preview
  530.            '{ width:6rem; padding:4px 6px; background: #EEE; float:right; display:block; border:solid 1px #999; }';
  531.        $iframe_MDstyles += '#buttons li#saveBtn span:first-of-type' + // show preview
  532.            '{ border-bottom-width:0px; }';
  533.        $iframe_MDstyles += '#buttons li#saveBtn span:hover' + // show preview
  534.            '{ color:#444; }';
  535.        // textarea source
  536.        $iframe_MDstyles += '#source' +
  537.            '{ width:100%; height:100%; min-height:100%; overflow-y:visible; font-family:monospace; resize: none; position:relative; top:0;bottom:0; background:#EEE; }';
  538.        $iframe_MDstyles += '#source:focus' +
  539.            '{ background:#FFF; }';
  540.        // preview styles
  541.        $iframe_MDstyles += '#preview p' +
  542.            '{ margin:1em 0; }';
  543.        $iframe_MDstyles += '#preview img' +
  544.            '{ width:auto; height:auto; max-width:100%; max-height:100%; margin:1em 0; }';
  545.        $iframe_MDstyles += '#preview pre, #preview blockquote' +
  546.            '{ padding:1em; background:#EEE; }';
  547.        $iframe_MDstyles += '#preview pre' +
  548.            '{ display:block; border:solid 1px #BBB; border-radius:3px; white-space:pre-wrap; word-break:break-word; }';
  549.        $iframe_MDstyles += '#preview blockquote' +
  550.            '{ margin:1em 0; border-left:solid 2px #999; }';
  551.        $iframe_MDstyles += '#preview .no_list' +
  552.            '{ list-style:none; }';
  553.        $iframe_MDstyles += '#preview > .no_list' +
  554.            '{ padding:0; }';
  555.        $iframe_MDstyles += '#preview kbd' +
  556.            '{ padding:2px 4px; background:#eee; }';
  557.        $iframe_MDstyles += 'input[type="checkbox"]' +
  558.            '{ margin-right:6px; float:left; }';
  559.  
  560.        $custom_iframe_MDstyles.appendChild(document.createTextNode(""));
  561.        $custom_iframe_MDstyles.append($iframe_MDstyles);
  562.        document.head.appendChild($custom_iframe_MDstyles);
  563.  
  564.        // Attempt to prettify dark theme styles; doesn't respond to user changing
  565.        // $settings.dark_theme === true ? $('input,a').css({'filter':'invert(87.5%)'}) : null;
  566.  
  567.        // UI Elements: source
  568.        let $md = '';
  569.            $md = document.querySelectorAll('pre')[0].innerHTML;
  570.        $('body > pre').first().remove();
  571.  
  572.        const sourceEl = $('<textarea id="source"></textarea>');
  573.        const previewEl = $('<div id="preview"></div>')
  574.  
  575.        // UI Elements: Buttons
  576.        const toggleSplitBtn = $('<li id="toggleSplit" title="Toggle Split"></li>');
  577.        const syncScrollEl = $('<li id="syncScroll"><input name="syncScroll" type="checkbox"><label for="syncScroll">Sync Scroll</label></li>')
  578.        const toggleSrcBtn = $('<li id="showSRC" title="Show Source"></li>');
  579.        const togglePreviewBtn = $('<li id="showPreview" title="Show Preview"></li>');
  580.        const saveBtn = $('<li id="saveBTN" title=""><div><span id="saveText">Save Source</span><span id="saveHTML">Save HTML</span></div></li>');
  581.        const buttonsCont = $('<ul id="buttons"></div>');
  582.              buttonsCont.append(toggleSrcBtn, togglePreviewBtn, toggleSplitBtn, syncScrollEl, saveBtn);
  583.  
  584.        // BUILD UI
  585.        $('body').append(buttonsCont, sourceEl, previewEl);
  586.  
  587.        // INIT UI
  588.        $settings.split_view === true ? $('body').addClass("split") : null;
  589.        $settings.preview_text === true ? $('body').addClass("preview") :  $('body').addClass("source");
  590.        $settings.sync_scroll === true ? $('#syncScroll input').prop({checked:true}) : null;
  591.  
  592.        // BUTTONS functions
  593.        $('#buttons').on('mousedown','li,span',function(e) {
  594.            e.stopPropagation();
  595.            sourceEl.off('blur', unsavedWarning);
  596.            let $name = decodeURI($fileName);
  597.            let $thisId = $(this).attr('id');
  598.            $thisId === 'toggleSplit' ? $('body').toggleClass('split') :
  599.            $thisId === 'showSRC' ? $('body').removeClass('split preview').addClass('source') :
  600.            $thisId === 'showPreview' ? $('body').removeClass('split source').addClass('preview') :
  601.            $thisId === 'saveText' ? saveMD( $name, sourceEl.text() ) :
  602.            $thisId === 'saveHTML' ? saveMD( $name.slice(0,$name.lastIndexOf('.') + 1) + 'html', previewEl.html() ) : null;
  603.        });
  604.        $('#buttons').on('mouseup','li,#saveText,#saveHTML',function(e) {
  605.            e.stopPropagation();
  606.            sourceEl.focus();
  607.            sourceEl.on('blur', unsavedWarning);
  608.        });
  609.        $('body').on('mouseover','#preview,#buttons',function(e) {
  610.            e.stopPropagation();
  611.            sourceEl.off('blur', unsavedWarning);
  612.        });
  613.        $('body').on('mouseout','#preview,#buttons',function(e) {
  614.            e.stopPropagation();
  615.            sourceEl.one('blur', unsavedWarning);
  616.        });
  617.  
  618.        // SOURCE
  619.        sourceEl.val($md);
  620.        document.getElementById('source').setSelectionRange(0,0);
  621.  
  622.        // PREVIEW
  623.        // (req: markdown-it) new MarkdownIt([presetName][, options])
  624.        var MDit = window.markdownit();
  625.  
  626.        // SYNC Scroll
  627.        $('#syncScroll label').on('click',function(e){
  628.            e.stopPropagation();
  629.            $('#syncScroll input').click();
  630.        });
  631.        previewEl.on('scroll', function () {
  632.            document.querySelector('input[name="syncScroll"').checked ? sourceEl.scrollTop($(this).scrollTop()) : null;
  633.        });
  634.        sourceEl.on('scroll', function () {
  635.            document.querySelector('input[name="syncScroll"').checked ? previewEl.scrollTop($(this).scrollTop()) : null;
  636.        });
  637.  
  638.        // Custom processing for Markdown and non-Markdown text.
  639.        function customPreProcess(src) {
  640.            return src;
  641.        }
  642.        function customPostProcess(html) {
  643.            html = html.replace(/^\/\/\s+?(.+?)$/gm,'<p>// $1</p>')
  644.                              .replace(/<p>\-*\s*\[x\]\s*(.+)$/gm,'<p class="checklist"><input type="checkbox" checked><label>$1</label></p>')
  645.                              .replace(/<p>\-*\s*\[\s*\]\s*(.+)$/gm,'<p class="checklist"><input type="checkbox"><label>$1</label></p>')
  646.                              .replace(/<li>\-*\s*\[x\]\s*(.+)$/gm,'<li class="checklist"><input type="checkbox" checked><label>$1</label></li>')
  647.                              .replace(/<li>\-*\s*\[\s*\]\s*(.+)$/gm,'<li class="checklist"><input type="checkbox"><label>$1</label></li>')
  648.                              .replace(/\&lt;/g,'<').replace(/\&gt;/g,'>') // convert <> entities
  649.                              .replace(/<p>\"<(.+)>;\"<\/p>/g,'<$1>'); // remove quoted html and p wrappers in order to render html
  650.            return html;
  651.        }
  652.        function markdown(src) {
  653.            let MDpreview = MDit.render( customPreProcess( src ) ); // render markdown from preprocessed source text
  654.            previewEl.html( customPostProcess( MDpreview ) ); // set previewed html
  655.            checklistStyle();
  656.        }
  657.        markdown($('#source').val() );
  658.  
  659.        // EDITING
  660.        function replaceAt(str, replacement, position) {
  661.            return str = str.substring(0, position) + replacement + str.substring(position + replacement.length);
  662.        }
  663.        function replaceNthSubStr(str,substr,replacement,index) {
  664.            let count = 0;
  665.            let found;
  666.  
  667.            while ( (found = substr.exec(str)) !== null) {
  668.                if ( count === index ) {
  669.                    return replaceAt(str, replacement, found.index );
  670.                } else {
  671.                    count++;
  672.                }
  673.            }
  674.        }
  675.        // Checkboxes
  676.        function checklistStyle() {
  677.            $('.checklist').closest('ul').addClass('no_list');
  678.        }
  679.        // TODO: update source text when toggling previewed checkboxes
  680.        $('#preview p.checklist').on('click','input',function(e) {
  681.            e.stopPropagation();
  682.            $('p.checklist').removeClass('clicked');
  683.            $(this).closest('p').addClass('clicked');
  684.            let checkboxLength = $('#preview p.checklist').length;
  685.  
  686.            let thisIndex = $('#preview p.checklist').index( $('.clicked') );
  687.            let srctext = $('#source').val();
  688.            let substr = new RegExp(/\[.\]/g);
  689.            let replacement = $(this).is(':checked') ? '[x]' : '[ ]';
  690.            $('#source').val( replaceNthSubStr(srctext,substr,replacement,thisIndex) );
  691.                addEditedClass();
  692.        });
  693.  
  694.        // Live preview, add edited warning
  695.        sourceEl.on('change', function(e) {
  696.            addEditedClass();
  697.        });
  698.        sourceEl.on('keyup', function(e) {
  699.            if ( !['Alt','Shift','Meta','Control','Tab','ArrowUp','ArrowRight','ArrowDown','ArrowLeft'].includes(e.key) ) {
  700.                addEditedClass();
  701.                markdown( $('#source').val() );
  702.            }
  703.        });
  704.  
  705.        function addEditedClass() {
  706.            if ( !sourceEl.hasClass('edited') ) {
  707.               $('#source, body').addClass('edited');
  708.            }
  709.        }
  710.  
  711.        function unsavedWarning() {
  712.            if ( $('#source, body').hasClass('edited') ) {
  713.                let r = window.confirm('Warning! You have unsaved changes. Do you want to save the file before closing?');
  714.                if ( r == true ) {
  715.                    $('#saveText').trigger('mousedown');
  716.                } else {
  717.                    //$('#source').one('blur',unsavedWarning );
  718.                }
  719.            }
  720.        }
  721.        sourceEl.on('blur', unsavedWarning);
  722.  
  723.        // SAVE SOURCE or HTML
  724.        var saveMD = function(filename, data) {
  725.            var blob = new Blob([data], {type: 'text/plain'});
  726.            var temp = window.document.createElement('a');
  727.            temp.href = window.URL.createObjectURL(blob);
  728.            temp.download = filename;
  729.            document.body.appendChild(temp);
  730.            $(temp).on('mousedown mouseup',function(e){
  731.                e.stopImmediatePropagation();
  732.                sourceEl.off('blur', unsavedWarning);
  733.            })
  734.            temp.click();
  735.            document.body.removeChild(temp);
  736.            URL.revokeObjectURL(blob);
  737.            $('body,#source').removeClass('edited');
  738.        }
  739.  
  740.        //
  741.    } // END IFRAME FUNCTIONS
  742.  
  743.    // Don't run script in previewed contentEditable text and html files.
  744.    if ( window.location.pathname.slice(-1) != '/') {
  745.       return;
  746.    }
  747.  
  748.    // Globals
  749.    var e, i, j, n;
  750.  
  751.    // ***** SET UP UI ELEMENTS ***** //
  752.  
  753.    const $body = $('body');
  754.    $body.attr('lang','en').find('> h1:contains("Index of"),> #parentDirLinkBox,> #UI_goUp,#UI_showHidden').remove();
  755.    $('head').prepend('<meta charset="utf-8">');
  756.  
  757.    // ***** SIDEBAR ELEMENTS ***** //
  758.    const $parent_dir_menu =    $('<nav id="parent_dir_menu"><a href="">&nbsp;</a></nav>');
  759.    const $parents_dir_menu =   $('<nav id="parents_dir_menu"><div></div></nav><ul class="menu"></ul>');
  760.    const $shortcuts_menu =     $('<nav id="shortcuts_menu"><div>&nbsp;</div></nav><ul id="shortcuts" class="menu"></ul>');
  761.    const $details_btn =        $('<button id="details_btn" tabindex="-1"><span>Show details</span><span>Hide details</span></button>');
  762.    const $inv_checkbox =       $('<label ><input type="checkbox" id="inv_checkbox" for="inv_checkbox" name="inv_checkbox" tabindex="-1" />Hide Invisibles</label>');
  763.    const $grid_btn =           $('<div id="grid_btn" tabindex="-1" title="Show Grid"><ul class="menu"><li id="show_image_grid">Show Image Grid</li><li id="show_font_grid">Show Font Grid</li></ul></div>');
  764.    const $sidebar_header =     $('<table id="sidebar_header"><thead><tr><th colspan="3">INDEX OF</th></tr></thead><tbody><tr><td></td><td></td><td></td></tr><tr><td colspan="3"></td></tr></tbody></table>');
  765.    const $dir_list_head =      $('<thead id="thead"><tr id="theader" class="header"><th id="name" class="name"><input id="play_toggle" type="checkbox" tabindex="-1" checked="true" />Name</th><th id="size" class="details">Size</th><th id="date" class="details">Date</th><th id="kind" class="details">Kind</th><th id="ext" class="details">Ext</th><th id="default" class="details">Default</th></tr></thead>');
  766.    const $dir_list_body =      $('<tbody id="tbody"></tbody>');
  767.    const $dir_list =           $('<table id="dir_list"></table>');
  768.    const $dir_list_wrapper =   $('<div id="dir_list_wrapper"></div>');
  769.    const $sidebar =            $('<div id="sidebar"></div>');
  770.    const $handle =             $('<div id="handle"></div>');
  771.    const $sidebar_wrapper =    $('<td id="sidebar_wrapper"></td>');
  772.    const $toggle_sidebar =     $('<div id="toggle_sidebar"></div>');
  773.  
  774.    // ***** CONTENT PANE ELEMENTS ***** //
  775.    const $sidebar_overlay =    $('<div id="sidebar_overlay"></div>');
  776.    const $content_overlay =    $('<div id="content_overlay"></div>');
  777.    const $content_grid =       $('<div id="content_grid" data-grid-scale-factor="0" data-kind="grid"></div>');
  778.    const $image_grid_item_el = $('<div class="image_grid_item"><a href=""><img src="/" /></a></div>');
  779.    const $font_grid_item_el =  $('<div class="font_grid_item"></div>');
  780.    const $content_scale =      $('<div id="scale"><span id="increase"></span><span id="decrease"></span></div>');
  781.    const $sample_string =      'ABCDEFGHIJKLMNOPQRSTUVWXYZ<br />abcdefghijklmnopqrstuvwxyz<br />0123456789 [(!@#$%^&*;:)]';
  782.    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.';
  783.    const $specimen =           $('<div class="specimen" style="font-size:3em;">'+ $sample_string +'</div><div class="lorem first" style="font-size:1em;">'+ $lorem_string +'</div><div class="lorem" style="font-size:1em;">'+ $lorem_string +'</div><div class="lorem" style="font-size:1em;">'+ $lorem_string +'</div>');
  784.    const $content_font =       $('<div id="content_font" spellcheck="false" contenteditable="true" data-kind="font"></div>');
  785.    const $image =              $('<img class="" data-kind="image" />');
  786.    const $content_image =      $('<div id="content_image" data-image-scale-factor="1" data-kind="image"></div>');
  787.    const $content_pdf =        $('<embed id="content_pdf" name="plugin" type="application/pdf" tabindex="0" data-kind="pdf"></embed>');
  788.    const $content_iframe =     $('<iframe id="content_iframe" sandbox="allow-scripts allow-modals" tabindex="0" data-kind="file"></iframe>');
  789.    const $content_video =      $('<video id="content_video" class="media" controls data-kind="video">Your browser does not support the video tag.</video>');
  790.    const $content_audio_title = $('<tr id="content_audio_title"><td colspan="3"></td></tr>');
  791.    const $content_audio =      $('<tr id="content_audio"><td colspan="3"></td></tr>');
  792.    const $prev_track =         $('<div id="prev_track" class="prev_next_track_btn" title="Previous track"></div>');
  793.    const $next_track =         $('<div id="next_track" class="prev_next_track_btn" title="Next track"></div>');
  794.    const $audio =              $('<audio id="audio" preload="auto" tabindex="0" controls>Sorry, your browser does not support HTML5 audio.</audio>');
  795.    const $loop =               $('<label><input type="checkbox" id="loop" for="loop" name="loop" tabindex="0" />Loop</label>');
  796.    const $shuffle =            $('<label><input type="checkbox" id="shuffle" for="shuffle" name="shuffle" tabindex="0" />Shuffle</label>');
  797.    const $close_audio =        $('<div id="close_audio" title="Close audio"></div>');
  798.    const $checkbox_cont =      $('<div id="checkbox_div"></div>');
  799.    const $content_reload_btn = $('<td><button id="reload_btn" tabindex="-1">Reload</button></td>');
  800.    const $content_stop_btn =   $('<td><button id="stop" tabindex="-1">Stop</button></td>');
  801.    const $content_title =      $('<tr id="content_title"><td id="title"></td></tr>');
  802.    const $content_close_btn =  $('<td><button id="close_btn" tabindex="-1">Close</button></td>');
  803.    const $content_header =     $('<header id="content_header"><table><tbody></tbody></table></header>');
  804.    const $prev_btn =           $('<div class="nav_btn" id="prev_btn"></div>');
  805.    const $next_btn =           $('<div class="nav_btn" id="next_btn"></div>');
  806.    const $content_container =  $('<section id="content_container"></section>');
  807.    const $content_pane =       $('<td id="content_pane"></td>');
  808.  
  809.    // SVG UI ICONS
  810.    const $svg_prefix = 'url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\' ';
  811.    const $up_arrow =                $svg_prefix + 'width=\'12.728px\' height=\'7.779px\' viewBox=\'0 0 12.728 7.779\' enable-background=\'new 0 0 12.728 7.779\' xml:space=\'preserve\'><path fill=\'%23444444\' d=\'M6.364,2.828l4.95,4.949l1.414-1.414L6.364,0l0,0L0,6.363l1.413,1.416L6.364,2.828\'/></svg>")';
  812.    const $up_arrow_inv =            $svg_prefix + 'width=\'12.728px\' height=\'7.779px\' viewBox=\'0 0 12.728 7.779\' enable-background=\'new 0 0 12.728 7.779\' xml:space=\'preserve\'><path fill=\'%23CCCCCC\' d=\'M6.364,2.828l4.95,4.949l1.414-1.414L6.364,0l0,0L0,6.363l1.413,1.416L6.364,2.828\'/></svg>")';
  813.    const $svg_arrow =               $svg_prefix + 'width=\'11px\' height=\'16px\' viewBox=\'234.5 248 11 16\' enable-background=\'new 234.5 248 11 16\' xml:space=\'preserve\'><path d=\'M245.5,261l-3,3l-8-8l8-8l3,3l-5,5L245.5,261z\'/></svg>")';
  814.    const $toggle =                  $svg_prefix + 'width=\'13.779px\' height=\'12.729px\' viewBox=\'2.474 -2.475 13.779 12.729\' enable-background=\'new 2.474 -2.475 13.779 12.729\' xml:space=\'preserve\'> <path fill=\'%23444444\' d=\'M5.302,3.889l4.949-4.95L8.838-2.475L2.474,3.889l0,0l6.363,6.364l1.416-1.413L5.302,3.889\'/> <path fill=\'%23444444\' d=\'M11.302,3.889l4.949-4.95l-1.414-1.414L8.474,3.889l0,0l6.363,6.364l1.416-1.413L11.302,3.889\'/> </svg>")';
  815.    const $check_mark =              $svg_prefix + 'width=\'17px\' height=\'14px\' viewBox=\'250.182 490.01 17 14\' enable-background=\'new 250.182 490.01 16.971 14.143\' xml:space=\'preserve\'><polygon fill=\'%23444444\' points=\'255.839,498.495 253.011,495.667 250.182,498.496 255.839,504.152 267.152,492.838 264.323,490.01 \'/></svg>")';
  816.    const $check_mark_inv =          $svg_prefix + 'width=\'17px\' height=\'14px\' viewBox=\'250.182 490.01 17 14\' enable-background=\'new 250.182 490.01 16.971 14.143\' xml:space=\'preserve\'><polygon fill=\'%23CCCCCC\' points=\'255.839,498.495 253.011,495.667 250.182,498.496 255.839,504.152 267.152,492.838 264.323,490.01 \'/></svg>")';
  817.    const $menu_arrow =              $svg_prefix + 'width=\'24px\' height=\'16px\' viewBox=\'0 0 24 16\' enable-background=\'new 0 0 24 16\' xml:space=\'preserve\'> <polygon fill=\'%23444444\' points=\'0,0 13.873,8.008 0.001,16.017 \'/> </svg>")';
  818.    const $menu_arrow_inv =          $svg_prefix + 'width=\'24px\' height=\'16px\' viewBox=\'0 0 24 16\' enable-background=\'new 0 0 24 16\' xml:space=\'preserve\'> <polygon fill=\'%23CCCCCC\' points=\'0,0 13.873,8.008 0.001,16.017 \'/> </svg>")';
  819.    const $menu_icon =               $svg_prefix + 'width=\'13px\' height=\'10px\' viewBox=\'0 0 13 10\' enable-background=\'new 0 0 13 10\' xml:space=\'preserve\'><rect fill=\'%23444444\' width=\'13\' height=\'2\'/><rect y=\'4\' fill=\'%23444444\' width=\'13\' height=\'2\'/><rect y=\'8\' fill=\'%23444444\' width=\'13\' height=\'2\'/></svg>")';
  820.    const $grid_icon =               $svg_prefix + 'width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' enable-background=\'new 0 0 16 16\' xml:space=\'preserve\'><g><path fill=\'%23666666\' d=\'M5,2v3H2V2H5 M7,0H0v7h7V0L7,0z\'/></g><g><path fill=\'%23666666\' d=\'M14,2v3h-3V2H14 M16,0H9v7h7V0L16,0z\'/></g><g><path fill=\'%23666666\' d=\'M5,11v3H2v-3H5 M7,9H0v7h7V9L7,9z\'/></g><g><path fill=\'%23666666\' d=\'M14,11v3h-3v-3H14 M16,9H9v7h7V9L16,9z\'/></g></svg>")';
  821.    const $plus_sign =               $svg_prefix + 'width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' xml:space=\'preserve\'><polygon points=\'16,6.5 9.5,6.5 9.5,0 6.5,0 6.5,6.5 0,6.5 0,9.5 6.5,9.5 6.5,16 9.5,16 9.5,9.5 16,9.5 \'/></svg>")';
  822.    const $minus_sign =              $svg_prefix + 'width=\'16px\' height=\'16px\' viewBox=\'0 0 16 16\' xml:space=\'preserve\'> <rect x=\'1\' y=\'6.499\' width=\'14\' height=\'3.001\'/> </svg>")';
  823.    const $next_track_arrow =        $svg_prefix + 'width=\'12.8px\' height=\'14px\' viewBox=\'-2 0 12.8 14\' enable-background=\'new -2 0 12.8 14\' xml:space=\'preserve\'><polygon fill=\'%23919191\' points=\'10.873,14.017 0,7.01 10.872,0 \'/><rect x=\'-2\' y=\'0\' fill=\'%23919191\' width=\'2\' height=\'14\'/></svg>")';
  824.    const $next_track_arrow_gecko =  $svg_prefix + 'width=\'12.8px\' height=\'14px\' viewBox=\'-2 0 12.8 14\' enable-background=\'new -2 0 12.8 14\' xml:space=\'preserve\'><polygon fill=\'white\' points=\'10.873,14.017 0,7.01 10.872,0 \'/><rect x=\'-2\' y=\'0\' fill=\'white\' width=\'2\' height=\'14\'/></svg>")';
  825.    const $next_track_arrow_gecko_hover = $svg_prefix + 'width=\'12.8px\' height=\'14px\' viewBox=\'-2 0 12.8 14\' enable-background=\'new -2 0 12.8 14\' xml:space=\'preserve\'><polygon fill=\'%236bb5ff\' points=\'10.873,14.017 0,7.01 10.872,0 \'/><rect x=\'-2\' y=\'0\' fill=\'%236bb5ff\' width=\'2\' height=\'14\'/></svg>")';
  826.    const $music =                        $svg_prefix + 'width=\'143.717px\' height=\'199.404px\' viewBox=\'0 0 143.717 199.404\' enable-background=\'new 0 0 143.717 199.404\' xml:space=\'preserve\'><g opacity=\'0.2\'> <path fill=\'%23757679\' d=\'M143.717,143.82c0,10.033-4.573,18.425-13.717,25.183c-8.394,6.143-17.776,9.211-28.149,9.211 c-6.074,0-11.056-1.432-14.943-4.297c-4.301-3.275-6.45-7.849-6.45-13.719c0-9.279,4.403-17.438,13.204-24.466 c8.326-6.616,17.266-9.93,26.82-9.93c8.052,0,13.922,1.605,17.606,4.812V25.487L63.26,45.654v119.354 c0,10.03-4.573,18.427-13.717,25.181c-8.394,6.142-17.778,9.215-28.148,9.215c-6.077,0-11.055-1.437-14.947-4.302 C2.151,191.827,0,187.253,0,181.386c0-9.282,4.401-17.436,13.206-24.465c8.323-6.615,17.262-9.929,26.817-9.929 c8.051,0,13.921,1.605,17.606,4.812V23.237L143.717,0V143.82z\'/></g></svg>")';
  827.    //SVG FILE ICONS
  828.    // Chrome default icons
  829.    const $file_icon_dir_default =   'url("data:image/png;base64,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 ")';
  830.    const $file_icon_file_default =  'url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAIAAACQkWg2AAAABnRSTlMAAAAAAABupgeRAAABHUlEQVR42o2RMW7DIBiF3498iHRJD5JKHurL+CRVBp+i2T16tTynF2gO0KSb5ZrBBl4HHDBuK/WXACH4eO9/CAAAbdvijzLGNE1TVZXfZuHg6XCAQESAZXbOKaXO57eiKG6ft9PrKQIkCQqFoIiQFBGlFIB5nvM8t9aOX2Nd18oDzjnPgCDpn/BH4zh2XZdlWVmWiUK4IgCBoFMUz9eP6zRN75cLgEQhcmTQIbl72O0f9865qLAAsURAAgKBJKEtgLXWvyjLuFsThCSstb8rBCaAQhDYWgIZ7myM+TUBjDHrHlZcbMYYk34cN0YSLcgS+wL0fe9TXDMbY33fR2AYBvyQ8L0Gk8MwREBrTfKe4TpTzwhArXWi8HI84h/1DfwI5mhxJamFAAAAAElFTkSuQmCC ")';
  831.    // Custom file icons
  832.    const $svg_icon_prefix =         'url("data:image/svg+xml;utf8,<svg version=\'1.1\' id=\'Layer_1\' xmlns=\'http://www.w3.org/2000/svg\' xmlns:xlink=\'http://www.w3.org/1999/xlink\' x=\'0px\' y=\'0px\' width=\'14px\' height=\'14px\' viewBox=\'0 0 14 14\' enable-background=\'new 0 0 14 14\' xml:space=\'preserve\'> ';
  833.    const $file_icon_dir =           $svg_icon_prefix + '<polygon fill=\'%233399FF\' points=\'6.1,2.7 4.8,1 0,1 0,13 14,13 14,2.7 \'/> <rect x=\'1.5\' y=\'4.2\' fill=\'%2399CCFF\' width=\'11\' height=\'7.3\'/> </svg> ")';
  834.    const $file_icon_dir_invisible = $svg_icon_prefix + '<polygon fill=\'%23888888\' points=\'6.1,2.7 4.8,1 0,1 0,13 14,13 14,2.7 \'/> <rect x=\'1.5\' y=\'4.2\' fill=\'%23BBBBBB\' width=\'11\' height=\'7.3\'/> <circle fill=\'%23888888\' cx=\'7\' cy=\'7.9\' r=\'1\'/> </svg> ")';
  835.    const $file_icon_app =           $svg_icon_prefix + '<g> <polygon style=\'fill:%230066FF;\' points=\'14,0 0,0 0,14 14,14 \'/> </g> <path style=\'fill:%23FFFFFF;\' d=\'M6.466,3.696L5.854,3.421c-0.175-0.078-0.381,0.003-0.455,0.18L5.086,4.348l1.241,0.578l0.315-0.791 C6.71,3.965,6.632,3.771,6.466,3.696z\'/> <polygon style=\'fill:%23FFFFFF;\' points=\'4.955,4.663 2.755,9.922 4.091,10.544 6.201,5.243 \'/> <polygon style=\'fill:%23FFFFFF;\' points=\'2.625,10.237 2.563,12.166 3.955,10.856 \'/> <polygon style=\'fill:%23FFFFFF;\' points=\'9.998,6.663 10.569,8.027 13.143,8.027 13.143,6.663 \'/> <path style=\'fill:%23FFFFFF;\' d=\'M9.838,7.164L7.594,1.797C7.52,1.619,7.314,1.538,7.139,1.616L6.527,1.893 C6.36,1.968,6.282,2.16,6.35,2.329l2.17,5.449L9.838,7.164z\'/> <polygon style=\'fill:%23FFFFFF;\' points=\'9.97,7.479 8.646,8.096 9.021,9.035 10.367,8.43 \'/> <path style=\'fill:%23FFFFFF;\' d=\'M10.479,8.753l-1.3,0.585L9.178,9.339c-0.041,0.311-0.073,0.736,0.073,1.07 c0.35,0.798,1.045,1.264,0.923,1.959c0,0,0.887-1.152,0.989-1.896C11.286,9.579,10.82,9.05,10.479,8.753z\'/> <polygon style=\'fill:%23FFFFFF;\' points=\'5.459,8.027 8.251,8.027 7.708,6.663 6.003,6.663 \'/> <polygon style=\'fill:%23FFFFFF;\' points=\'3.749,6.663 0.857,6.663 0.857,8.027 3.178,8.027 \'/> </svg> ")';
  836.    const $file_icon_file =          $svg_icon_prefix + '<g> <polygon fill=\'%23888888\' points=\'8.3,0 1.5,0 1.5,14 12.5,14 12.5,4.2 \'/> <polygon fill=\'%23FFFFFF\' points=\'11,12.5 3,12.5 3,1.5 6.8,1.5 6.8,5.7 11,5.7 \'/> <polygon fill=\'%23FFFFFF\' points=\'8.3,4.2 10.2,4.2 8.3,2.2 \'/> </g> </svg> ")';
  837.    const $file_icon_text =          $svg_icon_prefix + '<g> <polygon style=\'fill:%238888AA;\' points=\'14,0 0,0 0,14 14,14 \'/> </g> <g> <rect x=\'2.155\' y=\'2.187\' style=\'fill:%23FFFFFF;\' width=\'9.69\' height=\'1.14\'/> </g> <g> <rect x=\'2.155\' y=\'5.036\' style=\'fill:%23FFFFFF;\' width=\'9.69\' height=\'1.14\'/> </g> <g> <rect x=\'2.155\' y=\'7.886\' style=\'fill:%23FFFFFF;\' width=\'9.69\' height=\'1.141\'/> </g> <g> <rect x=\'2.155\' y=\'10.736\' style=\'fill:%23FFFFFF;\' width=\'6.555\' height=\'1.14\'/> </g> </svg> ")';
  838.    const $file_icon_image =         $svg_icon_prefix + '<g id=\'Layer_2\'> </g> <circle fill=\'%23FFEE22\' cx=\'5.5\' cy=\'3.2\' r=\'1.5\'/> <g> <path fill=\'%23FFFFFF\' d=\'M5.6,7.5L3.8,6L0.2,8.7c0.1,0.6,0.6,1.5,0.5,1.3l3-2.4L5.6,9l4.7-4l3.6,3.2l0,0C14,7.8,14,7.4,14,7 c0-0.1,0-0.3,0-0.4l-3.6-3.2L5.6,7.5z\'/> </g> <path fill=\'%2399AADD\' d=\'M3.8,6l1.8,1.5l4.8-4.1L14,6.6C13.8,2.9,10.7,0,7,0C3.1,0,0,3.1,0,7c0,0.6,0.1,1.2,0.2,1.7L3.8,6z\'/> <path fill=\'%233366CC\' d=\'M10.3,5L5.6,9L3.7,7.6l-3,2.4c1.1,2.4,3.5,4,6.3,4c3.4,0,6.3-2.5,6.9-5.8L10.3,5z\'/> <circle fill=\'%23FFE650\' cx=\'5.5\' cy=\'3.2\' r=\'1.5\'/> </svg> ")';
  839.    const $file_icon_pdf =           $svg_icon_prefix + '<g> <polygon style=\'fill:%23D84444;\' points=\'14,0 0,0 0,14 14,14 14,0 \'/> </g> <path style=\'fill:%23FFFFFF;\' d=\'M12.634,9.094c-0.074,0.047-0.288,0.075-0.423,0.075c-0.439,0-0.981-0.202-1.745-0.529 c0.294-0.022,0.562-0.031,0.803-0.031c0.441,0,0.569,0,1.002,0.108C12.7,8.824,12.705,9.047,12.634,9.094z M4.99,9.162 c0.17-0.3,0.345-0.616,0.521-0.952c0.435-0.822,0.712-1.469,0.914-1.997c0.409,0.742,0.917,1.37,1.51,1.876 C8.011,8.151,8.09,8.212,8.174,8.276C6.962,8.519,5.914,8.809,4.99,9.162z M6.404,1.383c0.241,0,0.38,0.606,0.391,1.179 c0.011,0.568-0.12,0.965-0.287,1.265c-0.14-0.441-0.203-1.129-0.203-1.581C6.305,2.245,6.295,1.383,6.404,1.383z M1.663,12.3 c0.14-0.374,0.68-1.113,1.479-1.771c0.051-0.037,0.175-0.155,0.289-0.263C2.596,11.603,2.033,12.133,1.663,12.3z M12.864,8.31 c-0.24-0.238-0.781-0.363-1.599-0.373c-0.555-0.008-1.218,0.041-1.923,0.138C9.03,7.893,8.707,7.697,8.451,7.459 c-0.683-0.64-1.25-1.524-1.606-2.497c0.021-0.094,0.044-0.171,0.062-0.253c0,0,0.383-2.186,0.28-2.925 c-0.015-0.104-0.021-0.131-0.05-0.21L7.104,1.486c-0.103-0.241-0.31-0.497-0.633-0.483L6.283,0.997H6.28 c-0.358,0-0.654,0.184-0.729,0.456c-0.233,0.864,0.007,2.15,0.444,3.818L5.882,5.544c-0.312,0.76-0.704,1.527-1.048,2.203 L4.787,7.836c-0.362,0.71-0.693,1.315-0.99,1.825l-0.31,0.165c-0.021,0.014-0.551,0.292-0.675,0.367 c-1.053,0.628-1.752,1.343-1.868,1.91c-0.037,0.179-0.009,0.41,0.178,0.52l0.299,0.148c0.129,0.064,0.269,0.096,0.406,0.096 c0.75,0,1.621-0.931,2.817-3.023c1.387-0.452,2.965-0.828,4.347-1.035c1.052,0.595,2.346,1.006,3.163,1.006 c0.146,0,0.271-0.013,0.373-0.042c0.155-0.04,0.288-0.129,0.369-0.254c0.156-0.235,0.191-0.563,0.146-0.901 C13.032,8.519,12.95,8.395,12.864,8.31z\'/> </svg> ")';
  840.    const $file_icon_font =          $svg_icon_prefix + '<g><polygon style=\'fill:%23770099;\' points=\'14,0 0,0 0,14 14,14    \'/></g><g><path style=\'fill:%23FFFFFF;\' d=\'M4.599,11.321h1.44V2.774H3.334v1.088H1.83V1.222h10.34v2.641h-1.505V2.774H7.977v8.547h1.393v1.457 H4.599V11.321z\'/></g></svg>")';
  841.    const $file_icon_code =          $svg_icon_prefix + '<g> <polygon style=\'fill:%237722DD;\' points=\'14,0 0,0 0,14 14,14 \'/> </g> <g> <path style=\'fill:%23FFFFFF;\' d=\'M5.892,12.965c-1.049,0-1.784-0.161-2.209-0.48c-0.425-0.317-0.638-0.82-0.638-1.503V8.915 c0-0.446-0.146-0.764-0.438-0.95C2.315,7.777,1.898,7.684,1.351,7.684V6.316c0.547,0,0.967-0.094,1.259-0.28s0.438-0.5,0.438-0.938 V3.006c0-0.675,0.217-1.172,0.65-1.491C4.13,1.195,4.862,1.036,5.893,1.036v1.312c-0.401,0.01-0.718,0.09-0.952,0.24 c-0.233,0.15-0.348,0.426-0.348,0.827V5.4c0,0.876-0.511,1.396-1.532,1.559v0.083c1.021,0.154,1.532,0.67,1.532,1.544v1.997 c0,0.41,0.116,0.688,0.349,0.835c0.233,0.146,0.55,0.223,0.951,0.232L5.892,12.965L5.892,12.965z\'/> <path style=\'fill:%23FFFFFF;\' d=\'M8.045,12.965v-1.313c0.392-0.009,0.706-0.089,0.944-0.239c0.236-0.15,0.355-0.426,0.355-0.829 V8.588c0-0.867,0.511-1.382,1.531-1.545V6.959C9.855,6.795,9.345,6.28,9.345,5.413V3.416c0-0.41-0.116-0.688-0.349-0.834 C8.764,2.436,8.447,2.358,8.045,2.349V1.036c1.049,0,1.785,0.159,2.21,0.479c0.423,0.319,0.637,0.821,0.637,1.505v2.065 c0,0.447,0.146,0.765,0.438,0.951c0.292,0.187,0.711,0.28,1.257,0.28v1.367c-0.546,0.012-0.967,0.107-1.259,0.287 C11.035,8.153,10.89,8.47,10.89,8.915v2.08c0,0.674-0.217,1.172-0.65,1.491C9.808,12.805,9.075,12.965,8.045,12.965z\'/> </g> </svg>")';
  842.    const $file_icon_html =          $svg_icon_prefix + '<path style=\'fill:%23FFFFFF;\' d=\'M7,14c-3.9,0-7-3.1-7-7C0,3.2,3.1,0,7,0H7C8.9,0,10.6,0.7,12,2C13.3,3.4,14,5.1,14,7 c0,1.9-0.7,3.6-2,5C10.7,13.3,8.9,14,7,14C7,14,7,14,7,14z\'/> <g> <path style=\'fill:%23EE7700;\' d=\'M5.3,1.1C4.7,1.9,4.2,2.6,3.8,3.5C3.4,3.3,3,3.1,2.6,2.8C3.3,2.1,4.2,1.5,5.3,1.1z M2,3.6 c0.5,0.3,1,0.6,1.5,0.8C3.3,5,3.2,5.6,3.1,6.3c0,0.1,0,0.2,0,0.3H0.9C1,5.4,1.4,4.4,2,3.6z M2,10.4c-0.6-0.9-1-1.9-1.1-3h2.1 c0,0.8,0.2,1.5,0.4,2.2C2.9,9.9,2.5,10.1,2,10.4z M2.6,11.2c0.4-0.3,0.8-0.5,1.2-0.6c0.3,0.8,0.8,1.5,1.4,2.2c0,0,0.1,0.1,0.1,0.1 C4.2,12.5,3.3,11.9,2.6,11.2z M6.5,12.9c-0.2-0.2-0.5-0.5-0.7-0.7c-0.5-0.6-0.9-1.3-1.2-1.9C5.3,10,5.9,9.9,6.5,9.9V12.9z M6.5,9 C5.8,9,5,9.1,4.3,9.4C4.1,8.7,4,8.1,4,7.5h2.6V9z M6.5,6.5H4c0-0.1,0-0.1,0-0.2c0.1-0.6,0.2-1.2,0.3-1.7C5.1,4.9,5.8,5,6.5,5V6.5z M6.5,4.1C5.9,4.1,5.3,4,4.7,3.8c0.4-1,1.1-1.9,1.9-2.6V4.1z M12,3.6c0.6,0.9,1,1.9,1.1,3h-2.2c0-0.8-0.2-1.5-0.4-2.2 C11,4.1,11.5,3.9,12,3.6z M11.3,2.7c0,0,0.1,0.1,0.1,0.1c-0.4,0.3-0.8,0.5-1.2,0.7C9.9,2.7,9.4,2,8.8,1.3C8.8,1.3,8.7,1.2,8.7,1.1 C9.7,1.4,10.6,2,11.3,2.7z M7.5,1.2c0.2,0.2,0.5,0.5,0.7,0.7C8.6,2.5,9,3.1,9.3,3.8C8.7,4,8.1,4.1,7.5,4.1V1.2z M7.5,5 c0.7,0,1.5-0.2,2.2-0.4C9.9,5.3,10,5.9,10,6.5H7.5V5z M7.5,7.5H10c0,0.1,0,0.2,0,0.2c0,0.6-0.2,1.1-0.3,1.7C9,9.1,8.2,9,7.5,9V7.5z M7.5,12.9v-3c0.6,0,1.3,0.1,1.9,0.3C8.9,11.2,8.3,12.1,7.5,12.9z M11.3,11.3c-0.7,0.7-1.6,1.3-2.6,1.5c0.6-0.7,1.1-1.5,1.5-2.3 c0.4,0.2,0.8,0.4,1.2,0.6C11.4,11.2,11.4,11.2,11.3,11.3z M10.5,9.7c0.2-0.6,0.3-1.2,0.4-1.9c0-0.1,0-0.2,0-0.3h2.2 c-0.1,1.1-0.4,2.1-1.1,3C11.5,10.1,11,9.9,10.5,9.7z M7,0C3.1,0,0,3.1,0,7s3.1,7,7,7s7-3.1,7-7S10.9,0,7,0z\'/> </g> </svg>")';
  843.    const $file_icon_ignored =       $svg_icon_prefix + '<path fill=\'%23CCCCCC\' d=\'M7,0C3.1,0,0,3.1,0,7c0,3.9,3.1,7,7,7c3.9,0,7-3.1,7-7C14,3.1,10.9,0,7,0L7,0z\'/><path fill=\'%23EEEEEE\' d=\'M7,2c2.8,0,5,2.2,5,5s-2.2,5-5,5c-2.8,0-5-2.2-5-5S4.2,2,7,2\'/><rect x=\'0.8\' y=\'5.9\' transform=\'matrix(0.7071 -0.7071 0.7071 0.7071 -2.8818 7.0063)\' fill=\'%23CCCCCC\' width=\'12.5\' height=\'2.3\'/></svg>")';
  844.    const $file_icon_ignored_inv =   $svg_icon_prefix + '<path fill=\'%23444444\' d=\'M7,0C3.1,0,0,3.1,0,7c0,3.9,3.1,7,7,7c3.9,0,7-3.1,7-7C14,3.1,10.9,0,7,0L7,0z\'/><path fill=\'%23555555\' d=\'M7,2c2.8,0,5,2.2,5,5s-2.2,5-5,5c-2.8,0-5-2.2-5-5S4.2,2,7,2\'/><rect x=\'0.8\' y=\'5.9\' transform=\'matrix(0.7071 -0.7071 0.7071 0.7071 -2.8818 7.0063)\' fill=\'%23444444\' width=\'12.5\' height=\'2.3\'/></svg>")';
  845.    const $file_icon_invisible =     $svg_icon_prefix + '<g> <polygon fill=\'%23888888\' points=\'8.3,0 1.5,0 1.5,14 12.5,14 12.5,4.2 \'/> <polygon fill=\'%23BBBBBB\' points=\'11,12.5 3,12.5 3,1.5 6.8,1.5 6.8,5.7 11,5.7 \'/> <polygon fill=\'%23BBBBBB\' points=\'8.3,4.2 10.2,4.2 8.3,2.2 \'/> </g> <circle fill=\'%23777777\' cx=\'7\' cy=\'9\' r=\'1\'/> </svg>")';
  846.    //    const $file_icon_video = 'url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\' viewBox=\'0 0 100 100\'><style type=\'text/css\'>.st0{fill:%23FFFFFF;}.st1{fill:%23EF6F2E;}</style><rect class=\'st0\' width=\'100\' height=\'100\'/><path class=\'st1\' d=\'M100 100H0V0h100V100zM9.7 90h80.7V10H9.7\'/><path class=\'st1\' d=\'M21 26.4v47.1h58V26.4H21zM31.9 69.9h-7.2v-7.2h7.2V69.9zM31.9 59.1h-7.2v-7.2h7.2V59.1zM31.9 48.2h-7.2v-7.2h7.2V48.2zM31.9 37.3h-7.2v-7.2h7.2V37.3zM42.8 62.7V37.3L60.9 50 42.8 62.7zM75.4 69.9h-7.2v-7.2h7.2V69.9zM75.4 59.1h-7.2v-7.2h7.2V59.1zM75.4 48.2h-7.2v-7.2h7.2V48.2zM75.4 37.3h-7.2v-7.2h7.2V37.3z\'/></svg>")';
  847.    //    const $file_icon_audio = 'url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\' viewBox=\'0 0 100 100\'><style type=\'text/css\'>.st0{fill:%23FFFFFF;}.st1{fill:%230E3693;}.st2{fill:%23003399;}</style><rect class=\'st0\' width=\'100\' height=\'100\'/><path class=\'st1\' d=\'M100 100H0V0h100V100zM9.7 90h80.7V10H9.7\'/><polyline class=\'st2\' points=\'32.5 37.5 23.5 37.5 23.5 62.5 32.5 62.5 53.6 77 53.6 23 32.5 37.5 \'/><path class=\'st2\' d=\'M71.9 50c0 6.8-3.7 12.7-9.1 15.8l2.8 4.9c7.1-4.1 11.9-11.8 11.9-20.7 0-8.8-4.8-16.6-11.9-20.7l-2.8 4.9C68.2 37.3 71.9 43.2 71.9 50z\'/><path class=\'st2\' d=\'M62.1 50c0 3.2-1.7 5.9-4.3 7.4l2.7 4.7c4.2-2.4 7-6.9 7-12.1 0-5.2-2.8-9.7-7-12.1l-2.7 4.7C60.4 44.1 62.1 46.8 62.1 50z\'/></svg>")';
  848.    //    const $file_icon_archive = 'url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\' viewBox=\'0 0 100 100\'><style type=\'text/css\'>.st0{fill:%23FFFFFF;}.st1{fill:%23D8A13F;}</style><rect class=\'st0\' width=\'100\' height=\'100\'/><path class=\'st1\' d=\'M100 100H0V0h100V100zM9.7 90h80.7V10H9.7\'/><path class=\'st1\' d=\'M72.4 38.5h-7.9v-7.9L72.4 38.5zM51.1 30.6v28.8h21.4v-19h-9.9v-9.9H51.1zM54.4 23H30.8v5.6h9.3l-5.9 4.5v4.8l8.6-6.6v-2.7h30.1v-2.3L54.4 23zM42.9 35.1l-8.6 6.6v4.8l8.6-6.6V35.1zM34.2 55.1l8.6-6.6v-4.8l-8.6 6.6V55.1zM42.9 57.1v-4.8l-8.6 6.6v2.6h-3.4v5.6h5.3v3.8H33c-0.6-1-1.6-1.6-2.8-1.6 -1.8 0-3.2 1.4-3.2 3.2s1.4 3.2 3.2 3.2c1.2 0 2.2-0.6 2.8-1.6h3.1V77h4.8v-2.9H44c0.6 1 1.6 1.6 2.8 1.6 1.8 0 3.2-1.4 3.2-3.2s-1.4-3.2-3.2-3.2c-1.2 0-2.2 0.6-2.8 1.6h-3.1v-3.8h13.5l18.5-3.3v-2.3H37.1L42.9 57.1z\'/></svg>")';
  849.  
  850.  
  851.    // Assemble UI Elements
  852.    function assembleUIElements() {
  853.       $parents_dir_menu.find('div').append( $current_dir_path );
  854.       $sidebar_header.find('thead th').append($toggle_sidebar);
  855.       $sidebar_header.find('tbody tr').first().find('td').first().append( $parent_dir_menu ).next().append( $parents_dir_menu ).next().append( $shortcuts_menu );
  856.       $sidebar_header.find('tbody tr:last-child td').append( $details_btn, $inv_checkbox, $grid_btn );
  857.  
  858.       $dir_list.append($dir_list_head, $dir_list_body);
  859.       $sidebar.append($sidebar_header, $dir_list);
  860.       $sidebar_wrapper.append( $sidebar, $sidebar_overlay, $handle );
  861.  
  862.       $content_image.append( $image );
  863.       $checkbox_cont.append( $loop, $shuffle );
  864.       $content_audio.find('td').append( $prev_track, $next_track, $audio, $close_audio, $checkbox_cont );
  865. //      $content_audio_title.find('td').after( $close_audio );
  866.       $content_title.prepend($content_reload_btn).append($content_close_btn);
  867.       $content_header.find('tbody').append( $content_title, $content_audio_title, $content_audio );
  868.       $content_font.append( $specimen );
  869.       $content_container.append( $content_header, $content_overlay, $content_image, $content_grid, $content_font, $content_pdf, $content_video, $content_iframe, $prev_btn, $next_btn, $content_scale );
  870.       $content_pane.append( $content_container );
  871.    }
  872.    assembleUIElements();
  873.  
  874.    //***** STYLES *****//
  875.  
  876. // DEFINE STYLES
  877. var $styles = '';
  878.  
  879. // background-color
  880. $styles += '#sidebar_wrapper, body.light_theme #sidebar, body.light_theme #sidebar ul, body.light_theme #content_header' +
  881.          '{ background-color: lightgray }';
  882. $styles += 'body.light_theme #dir_list .selected, body.light_theme #dir_list .playing' + //body.light_theme #dir_list .selected.audio,
  883.          '{ background-color: lightsteelblue; }';
  884. $styles += 'body.dark_theme #dir_list .selected' +
  885.          '{ background-color: slategray; }';
  886. $styles += 'body.dark_theme #content_grid, #content_image, body.dark_theme #content_pane' +
  887.          '{ background-color: #333; }';
  888. $styles += 'body.dark_theme #sidebar ul, body.dark_theme #sidebar_header thead, body.dark_theme #sidebar_header tbody tr:first-of-type, body.dark_theme.alternate_background #dir_list tbody tr:nth-of-type(odd):not(.selected)' +
  889.          '{ background-color: #444; }';
  890. $styles += 'body.dark_theme #content_grid:not(.has_grid) .image_grid_item:hover, body.dark_theme #content_grid:not(.has_grid) div.image_grid_item.hovered, body.dark_theme #sidebar, body.dark_theme #content_header, body.dark_theme #dir_list #tbody, body.dark_theme #grid_btn .menu li, body.dark_theme .font_grid_item:hover, body.dark_theme .font_grid_item.hovered, body.dark_theme .image_grid_item:hover, body.dark_theme .image_grid_item.hovered' +
  891.          '{ background-color: #555; }';
  892. $styles += 'body.dark_theme #content_grid:not(.has_grid) .image_grid_item.selected, body.dark_theme #sidebar ul li:hover, body.dark_theme #content_grid .font_grid_item.selected, body.dark_theme #content_grid .image_grid_item.selected' +
  893.          '{ background-color: #666; }';
  894. $styles += 'body.dark_theme #grid_btn .menu li:hover, body.dark_theme #dir_list tbody tr:hover, body.dark_theme #dir_list tbody li:hover, body.dark_theme.alternate_background #dir_list #tbody tr:hover, body.dark_theme #sidebar .hovered, body.dark_theme #content_iframe[href^="/"], body.dark_theme.alternate_background #dir_list #tbody tr:nth-of-type(odd).hovered' +
  895.          '{ background-color: #777; }';
  896. $styles += 'body.light_theme #sidebar_header thead tr, body.light_theme #sidebar_header tbody tr:first-of-type, #parents_dir_menu + ul li:hover, #shortcuts_menu + ul li:not(.has_submenu):hover, #grid_btn.has_images.has_fonts:hover .menu li:hover, body.light_theme #dir_list tbody tr:hover, body.light_theme.alternate_background #dir_list #tbody tr:hover, body.light_theme #dir_list .hovered, body.light_theme.alternate_background #dir_list #tbody tr.hovered' +
  897.          '{ background-color: #BBB; }';
  898. $styles += 'body.light_theme #grid_btn .menu li, body.light_theme #content_grid div.selected, body.light_theme.alternate_background #dir_list tbody tr:nth-of-type(odd):not(.selected)' +
  899.          '{ background-color: #CCC; }';
  900. $styles += 'body.light_theme #content_grid div:hover, body.light_theme #content_grid div.hovered' +
  901.          '{ background-color: #DDD; }';
  902. $styles += 'body.light_theme #dir_list tbody' +
  903.          '{ background-color: #DFDFDF; }';
  904. $styles += 'body.light_theme #content_pane, #content_image .img, body.light_theme #content_grid, #content_font, #content_iframe' +
  905.          '{ background-color: #FFF; }';
  906. // EXCLUDED: Prevent previewed files with these extensions from being inverted in dark mode
  907. for ( let i = 0, n = $row_settings.exclude.length; i < n; i += 1) {
  908.    $styles += 'body.dark_theme #content_iframe[src*="'+ $row_settings.exclude[i] +'" i] { background:#FFF; filter: unset; }';
  909. }
  910. $styles += 'body.dark_theme #content_iframe[src$="/" i]' +
  911.              '{ background:#AAA; filter:unset; }';
  912. $styles += '#scale' +
  913.          '{ background-color: rgba(128,128,128,0.3); }';
  914. $styles += 'body.is_chrome #audio' +
  915.          '{ background-color: rgb(241, 243, 244); }';
  916. $styles += 'body.dark_theme #dir_list .playing, body.dark_theme.alternate_background #dir_list tbody tr.playing:nth-of-type(odd)' + //body.dark_theme #dir_list .selected.audio,
  917.          '{ background-color: #4C7E80; }';
  918. $styles += '#dir_list tbody tr, #dir_list .audio a, #dir_list .video a, body.has_audio #content_pane.has_ignored #content_image, body.light_theme #grid_btn .menu, body.dark_theme #grid_btn .menu, body #dir_list tr.file.audio a.icon, body #dir_list tr.file.video a.icon, body.use_custom_icons #dir_list tr.file.ignore a.icon' +
  919.          '{ background-color: transparent; }';
  920.  
  921. // BACKGROUND SVG IMAGES & ICONS
  922. $styles += '#parent_dir_menu a { background:' + $up_arrow + 'center no-repeat; }';
  923. $styles += '#shortcuts_menu div { background:'+ $menu_icon + 'center no-repeat; }';
  924. $styles += 'body.light_theme #shortcuts > li.has_submenu { background:'+ $menu_arrow +' right no-repeat; background-size: 12px; }';
  925. $styles += 'body.light_theme #shortcuts > li.has_submenu:hover { background:#BBB '+ $menu_arrow +' right no-repeat; background-size: 12px; }';
  926. $styles += 'body.light_theme #shortcuts li.checked span { background:'+ $check_mark +' 4px center no-repeat; background-size:12px; }';
  927. $styles += '#grid_btn { background:'+ $grid_icon +' center no-repeat; }';
  928. $styles += '#toggle_sidebar { background:'+ $toggle +' center no-repeat; background-size:12px; }';
  929. $styles += '#dir_list thead th.checked { background:'+ $check_mark +' 10px 2px no-repeat; background-size:10px; }';
  930. $styles += 'body.light_theme #dir_list thead th.checked:after { background:'+ $up_arrow +' center no-repeat; background-size:10px; }';
  931. $styles += '#dir_list tbody a { background-size:auto 13px; background-position:6px 4px; }';
  932. $styles += 'body.has_audio #content_pane { background-image: ' + $music +'; background-position: center; background-repeat: no-repeat; background-size:33.33%; }';
  933. $styles += '#prev_track, #next_track { background: rgb(241, 243, 244) '+ $next_track_arrow +' center no-repeat; background-blend-mode:difference; }';
  934. $styles += '#prev_track:hover, #next_track:hover, #close_audio:hover { background-blend-mode:normal; }';
  935. $styles += '#close_audio { background:rgb(241, 243, 244); }';
  936. $styles += '#close_audio:after { background:'+ $plus_sign +' center no-repeat; background-blend-mode:difference; background-size:14px; }';
  937. $styles += '#scale span:first-of-type { background:'+ $plus_sign +' center no-repeat; }';
  938. $styles += '#scale span:last-of-type { background:'+ $minus_sign +' center no-repeat; }';
  939. $styles += '#prev_btn, #next_btn { background: ' + $svg_arrow + ' center no-repeat; }';
  940. $styles += 'body #content_pane.has_ignored { background-image:'+ $file_icon_ignored +'; background-position: center; background-repeat: no-repeat; background-size:50%; }';
  941. // Dark theme
  942. $styles += 'body.dark_theme #content_pane.has_ignored { background-image:'+ $file_icon_ignored_inv +'; background-position: center; background-repeat: no-repeat; background-size:50%; }';
  943. $styles += 'body.dark_theme #shortcuts > li.has_submenu { background:'+ $menu_arrow_inv +' right no-repeat; background-size: 12px; }';
  944. $styles += 'body.dark_theme #shortcuts > li.has_submenu:hover { background:#666 '+ $menu_arrow_inv +' right no-repeat; background-size: 12px; }';
  945. $styles += 'body.dark_theme #shortcuts li.checked span { background:'+ $check_mark_inv +' 4px center no-repeat; background-size:12px; }';
  946. $styles += 'body.dark_theme #dir_list thead th.checked { background:'+ $check_mark_inv +' 10px 2px no-repeat; background-size:10px; }';
  947. $styles += 'body.dark_theme #dir_list thead th.checked:after { background:'+ $up_arrow_inv +' center no-repeat; background-size:10px; }';
  948. // Default File Icons
  949. $styles += 'body.use_default_icons #dir_list .dir a.icon { background:'+ $file_icon_dir_default + ' 6px 4px no-repeat; background-size:auto 13px; }';
  950. $styles += 'body.use_default_icons #dir_list .file a.icon { background:'+ $file_icon_file_default + ' 6px 4px no-repeat; background-size:auto 13px; }';
  951. // Custom File Icons
  952. $styles += 'body.use_custom_icons #dir_list tr.file:not(.dir) a.icon { background: '+ $file_icon_file +' 6px 4px no-repeat; background-size:14px 14px; }';
  953. $styles += 'body.use_custom_icons #dir_list tr.file.audio a.icon, body.use_custom_icons #dir_list tr.file.video a.icon { background: transparent; }';
  954. $styles += 'body.use_custom_icons #dir_list tr.file.font a.icon { background: '+ $file_icon_font +' 6px 4px no-repeat; background-size:14px 14px; }';
  955. $styles += 'body.use_custom_icons #dir_list tr.file.image a.icon { background: '+ $file_icon_image +' 6px 4px no-repeat; background-size:14px 14px; }';
  956. $styles += 'body.use_custom_icons #dir_list tr.file.pdf a.icon { background: '+ $file_icon_pdf +' 6px 4px no-repeat; background-size:14px 14px; }';
  957. $styles += 'body.use_custom_icons #dir_list tr.file[class*="htm"] a.icon { background: '+ $file_icon_html +' 6px 4px no-repeat; background-size:14px 14px; }';
  958. $styles += 'body.use_custom_icons #dir_list tr.file.ignore a.icon { background: '+ $file_icon_ignored +' 6px 4px no-repeat; }';
  959. $styles += 'body.use_custom_icons #dir_list tr.file.invisible a.icon { background: '+ $file_icon_invisible +' 6px 4px no-repeat; background-size:14px 14px; }';
  960. $styles += 'body.use_custom_icons #dir_list tr.dir.invisible a.icon { background: '+ $file_icon_dir_invisible +' 6px 4px no-repeat; background-size:14px 14px; }';
  961. $styles += 'body.use_custom_icons #dir_list tr.dir:not(.app) a.icon { background: '+ $file_icon_dir +' 6px 4px no-repeat; background-size:14px 14px; }';
  962. $styles += 'body.use_custom_icons #dir_list tr.app a { background: '+ $file_icon_app +' 6px 4px no-repeat !important; background-size:14px 14px; }';
  963. $styles += 'body.use_custom_icons #dir_list tr.file.code a.icon { background: '+ $file_icon_code +' 6px 4px no-repeat; background-size:14px 14px }';
  964. $styles += 'body.use_custom_icons #dir_list tr.file.text a.icon,body.use_custom_icons #dir_list tr.file.markdown a.icon { background: '+ $file_icon_text +' 6px 4px no-repeat; background-size:14px 14px }';
  965. // Plain text file icons
  966. for ( let i = 0, n = $row_types.text.length; i < n; i += 1) {
  967. //   $styles += 'body.use_custom_icons #dir_list tr.file.'+ $row_types.text[i] +' a.icon { background: '+ $file_icon_text +' 6px 4px no-repeat; background-size:14px 14px }';
  968. }
  969.  
  970. // border
  971. $styles += ':root, html, body, #sidebar_wrapper, #sidebar_header, #dir_list, #main_content, #content_pane, #content_pdf, #content_iframe' +
  972.          '{ border: 0 !important; }';
  973. $styles += 'body.dark_theme ul' +
  974.          '{ border: solid 1px #222; }';
  975. $styles += '#details_btn' +
  976.          '{ border: solid 1px #333; }';
  977. $styles += 'body.light_theme #sidebar ul, body.light_theme .image_grid_item img' +
  978.          '{ border: solid 1px gray; }';
  979. // border-top
  980. $styles += 'body.dark_theme #sidebar_header .menu, body.dark_theme #sidebar #grid_btn ul.menu' +
  981.          '{ border-top:solid 1px #111; }';
  982. $styles += 'body.dark_theme #dir_list #tbody' +
  983.          '{ border-top:solid 1px #222; }';
  984. $styles += 'body.light_theme #dir_list tbody, #grid_btn .menu, .font_grid_item:not(:first-of-type), .image_grid_item + .font_grid_item' +
  985.          '{ border-top:solid 1px grey; }';
  986. $styles += '#sort_by' + // , tr.dir ~ tr:not(.dir,.invisible,.ignore)
  987.          '{ border-top:solid 1px #999; }';
  988. $styles += 'body.dark_theme.is_dirs_on_top #dir_list tbody tr.dir + tr.file' +
  989.          '{ border-top:solid 1px #CCC; }';
  990. // border-right
  991. $styles += '#parents_dir_menu + ul, #shortcuts_menu + ul, body.dark_theme #sidebar #grid_btn ul.menu' +
  992.          '{ border-right:0 !important; }';
  993. $styles += 'body.dark_theme #parents_dir_menu, body.dark_theme #sidebar, body.dark_theme #sidebar #grid_btn .menu li' +
  994.          '{ border-right:solid 1px #111; }';
  995. $styles += '#sidebar, body.light_theme #parents_dir_menu, #grid_btn .menu li, .image_grid_item' +
  996.          '{ border-right:solid 1px grey; }';
  997. // border-bottom
  998. $styles += 'body.dark_theme #sidebar_header thead tr, body.dark_theme #sidebar_header tbody tr:first-of-type' +
  999.          '{ border-bottom:solid 1px black; }';
  1000. $styles += 'body.dark_theme #sidebar_header .menu, body.dark_theme #content_header, body.dark_theme #sidebar #grid_btn .menu li:first-of-type, body.dark_theme #sidebar #grid_btn ul.menu' +
  1001.          '{ border-bottom:solid 1px #111; }';
  1002. $styles += 'body.dark_theme #content_header tr:first-of-type' +
  1003.          '{ border-bottom:solid 1px #333; }';
  1004. $styles += 'body.light_theme #sidebar_header thead tr, body.light_theme #sidebar_header tbody tr:first-of-type, #grid_btn .menu li:first-of-type, #grid_btn .menu, .specimen, .font_grid_item:last-of-type, .image_grid_item' +
  1005.          '{ border-bottom:solid 1px grey; }';
  1006. $styles += '#content_header tr:first-of-type' +
  1007.          '{ border-bottom:solid 1px #888; }';
  1008. $styles += '#shortcuts_menu + ul > li.has_submenu.ruled, body.is_dirs_on_top #dir_list tbody tr.sorted:not(:last-of-type), .rule' +
  1009.          '{ border-bottom:solid 1px #999; }';
  1010. $styles += 'body.light_theme #content_header' +
  1011.          '{ border-bottom:solid 1px #AAA; }';
  1012. $styles += 'body.dark_theme.is_dirs_on_top #dir_list tbody tr.sorted:not(:last-of-type), body.dark_theme #content_pane.has_font #content_font hr' +
  1013.          '{ border-bottom:solid 1px #CCC; }';
  1014. // border-left
  1015. $styles += '#parents_dir_menu + ul, #shortcuts_menu + ul' +
  1016.          '{ border-left:0; }';
  1017. $styles += 'body.dark_theme #parents_dir_menu, body.dark_theme #sidebar #grid_btn ul.menu' +
  1018.          '{ border-left:solid 1px #111; }';
  1019. $styles += 'body.light_theme #parents_dir_menu, #grid_btn .menu' +
  1020.          '{ border-left:solid 1px grey; }';
  1021.  
  1022. // border-collapse
  1023. $styles += 'table' +
  1024.          '{ border-collapse: collapse; }';
  1025.  
  1026. // border-radius
  1027. $styles += 'html, body, :root' +
  1028.          '{ border-radius: 0; }';
  1029. $styles += '#details_btn' +
  1030.          '{ border-radius: 3px; }';
  1031.  
  1032. // bottom
  1033. $styles += '#handle, #parent_dir_menu, #sidebar_overlay, #content_overlay, #close_audio:after, #content_image, #content_pdf, #content_iframe, #content_grid, #content_font, #prev_btn, #next_btn, #dir_list tbody' +
  1034.          '{ bottom: 0; }';
  1035.  
  1036. // box-shadow
  1037. $styles += 'body.light_theme #sidebar ul' +
  1038.          '{ box-shadow: 0px 2px 3px -2px #888; }';
  1039. $styles += 'body.dark_theme #sidebar ul' +
  1040.          '{ box-shadow:0px 2px 3px -2px #111; }';
  1041. $styles += 'body.dark_theme #sidebar #grid_btn ul.menu' +
  1042.          '{ box-shadow:none; }';
  1043.  
  1044. // box-sizing
  1045. $styles += 'html, body, :root, #sidebar, #grid_btn .menu li' +
  1046.          '{ box-sizing: border-box; }';
  1047.  
  1048. // clear
  1049. $styles += '#dir_list tbody .name' +
  1050.          '{ clear:right; }';
  1051. $styles += '#checkbox_div label, #grid_btn .menu li, #dir_list tbody tr, #content_grid .font_grid_item' +
  1052.          '{ clear: both; }';
  1053.  
  1054. // columns
  1055. $styles += '.lorem + .lorem' +
  1056.          '{ columns:2; column-gap:2em; }';
  1057. $styles += '.lorem + .lorem + .lorem' +
  1058.          '{ columns:3; }';
  1059.  
  1060. // color
  1061. $styles += 'body.dark_theme #shortcuts_menu + ul > li > ul, body.dark_theme #shortcuts_menu + ul > li.has_submenu + li:not(.has_submenu), #content_font' +
  1062.          '{ color: #111 }';
  1063. $styles += '#sidebar, #parents_dir_menu + ul li a, body.light_theme #shortcuts_menu + ul li a, body.light_theme #shortcuts_menu + ul li:not(.disabled) > span, body.light_theme #dir_list th:not(.disabled), #dir_list tbody a, #dir_list .selected a, #dir_list .playing a, #content_header, body.dark_theme #details_btn span, .font_grid_item a, .image_grid_item p' +
  1064.          '{ color: #111 }';
  1065. $styles += 'body.dark_theme #sidebar_header thead tr, body.dark_theme #sidebar_header tbody tr:first-of-type' +
  1066.          '{ color: #444 }';
  1067. $styles += '#scale span:hover' +
  1068.          '{ color: #666 }';
  1069. $styles += '#dir_list tr.ignore a, #dir_list tr.ignore.app a, #dir_list tr.ignore td.details' +
  1070.          '{ color: #777 }';
  1071. $styles += '#sort_menu .disabled span, #dir_list th.disabled' +
  1072.          '{ color: #999 }';
  1073. $styles += 'body.dark_theme #dir_list tr.file.ignore a.icon, body.dark_theme #dir_list tr.ignore td.details' +
  1074.          '{ color: #BBB }';
  1075. $styles += 'body.dark_theme .font_grid_item p, body.dark_theme .font_grid_item a, body.dark_theme .image_grid_item p' +
  1076.          '{ color: #DDD }';
  1077. $styles += 'body.dark_theme #sidebar th:not(.disabled), body.dark_theme #sidebar td, body.dark_theme #sidebar a, body.dark_theme #content_header tr, body.dark_theme #sidebar tbody tr:first-of-type span' +
  1078.          '{ color: #EEE }';
  1079.  
  1080. // content
  1081. $styles += '#dir_list thead th.checked:after, body.has_hidden_sidebar #handle, #dir_list thead th.checked:before, #dir_list thead td.icon, #dir_list tr:empty, #dir_list .audio td.icon, #dir_list .video td.icon, body.hide_invisibles .invisible, body.hide_ignored .ignore, body.use_custom_icons #dir_list tr.file.ignore a.icon::before, #close_audio:after' +
  1082.          '{ content:"" }';
  1083. $styles += 'body.dark_theme #dir_list thead th.checked:after' +
  1084.          '{ content:" " }';
  1085. $styles += '#content_pane.has_audio #content_audio_title td:before, body #content_pane.has_video #title:before' +
  1086.          '{ content:"Playing: " }'; // .audio, .video
  1087. $styles += '#content_pane.has_dir:not(.has_grid) #title:before' +
  1088.          '{ content:"Index of: " }'; // .dir
  1089. $styles += '#content_pane.has_grid:not(.has_ignored) #title:before' +
  1090.          '{ content:"Fonts and Images from: " }'; // font and image grid
  1091. $styles += 'body:not(.has_images) #content_pane.has_grid:not(.has_ignored) #title:before, #content_pane.has_grid #title.font_grid:before' +
  1092.          '{ content:"Fonts from: " }'; // font grid
  1093. $styles += 'body:not(.has_fonts) #content_pane.has_grid:not(.has_ignored) #title:before, #content_pane.has_grid #title.image_grid:before' +
  1094.          '{ content:"Images from: " }'; // image grid
  1095. $styles += '#content_pane.has_ignored:not(.has_grid) #title:before' +
  1096.          '{ content:"Ignored content: " }'; // .ignored
  1097.  
  1098. // cursor
  1099. $styles += '#sidebar_header thead th, #sort_menu .disabled span, #dir_list .disabled' +
  1100.          '{ cursor: default; }';
  1101. $styles += '#sidebar_header tbody tr:first-of-type td:hover, #parents_dir_menu div, #shortcuts_menu div, #grid_btn, #dir_list thead th, #scale span' +
  1102.          '{ cursor: pointer; }';
  1103. $styles += '#handle' +
  1104.          '{ cursor: col-resize; }';
  1105. $styles += '#content_image img:not(.zoom_img)' +
  1106.          '{ cursor: zoom-in; }';
  1107. $styles += '#content_image img.zoom_img' +
  1108.          '{ cursor: zoom-out; }';
  1109.  
  1110. // display
  1111. $styles += '#sidebar tbody tr:first-of-type ul, #light_theme, #details_btn span:last-of-type, #grid_btn, #grid_btn:not(:hover) .menu, #dir_list thead .name input, #dir_list .details, body.has_hidden_sidebar #handle, #dir_list thead th.checked:before, #dir_list thead td.icon, #dir_list tr td:not(.name), body.has_hidden_sidebar #dir_list tr td, #dir_list tr:empty, #dir_list tr.audio td.icon, #dir_list tr.video td.icon, body.hide_invisibles #tbody tr.invisible, body.hide_ignored #tbody tr.ignore, #sidebar_overlay, #content_overlay, #content_title:before, #content_header, #content_audio_title, #content_audio td, #content_pane section header ~ *[id^="content"], .nav_btn, #content_grid, #content_pane.has_hidden_grid #content_grid, #scale, body.light_theme #dark_theme, body.dark_theme #light_theme, body.preview_text #edit_text, body:not(.preview_text) #preview_text, body.use_custom_icons #dir_list img, #dir_list tr.file.audio a img, #dir_list tr.file.video a img' +
  1112.          '{ display: none; }';
  1113. $styles += '#sidebar li, #parent_dir_menu, #parent_dir_menu a, #parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu + ul > li:hover > ul, #shortcuts_menu + ul > li > ul:hover, #default, #dir_list tbody a, #content_pane[class^="has_"] #content_header, #content_pane.has_image:hover #scale, #content_pane.has_font:hover #scale, #content_pane.has_font #content_font, #content_pane.has_image #content_image, #content_pane.has_pdf #content_pdf, #content_pane.has_video #content_video, #content_pane.has_iframe #content_iframe, #content_pane.has_dir #content_iframe, #content_pane.has_grid #content_grid.has_grid, #content_pane.has_grid #content_grid.has_font_grid, .font_grid_item, .image_grid_item a, #content_pane.has_grid .nav_btn, #content_pane.has_font .nav_btn, #content_pane.has_image .nav_btn, #scale span, #checkbox_div label, body.dark_theme #dark_theme, body.light_theme #light_theme, body.use_custom_icons #dir_list tr.file.ignore a.icon::before, body:not(.has_hidden_sidebar) #dir_list .name' +
  1114.          '{ display: block; }';
  1115. $styles += 'body.has_images.has_fonts #grid_btn:hover ul.menu' +
  1116.          '{ display:block !important; }';
  1117. $styles += '#parents_dir_menu div, body.has_fonts #grid_btn, body.has_images #grid_btn, #dir_list thead th.checked:after, #dir_list.show_details th:not(.name), #dir_list.show_details td:not(.name):not(.ext), body.has_audio #dir_list thead input, #content_grid .image_grid_item, #checkbox_div, #prev_track, #next_track, #close_audio, body.dark_theme #dir_list thead th.checked:after, #content_pane[class^="has_"] #content_container' +
  1118.          '{ display: inline-block; }';
  1119. $styles += '#content_pane.has_audio #content_audio_title, #content_pane.has_audio #content_audio' +
  1120.          '{ display: table-row !important; }';
  1121. $styles += '#shortcuts_menu div, #content_pane[class^="has"] #title, #content_pane[class^="has"] #content_header, #content_pane.has_audio #content_audio td' +
  1122.          '{ display: table-cell !important; }';
  1123. $styles += '#content_pane.has_grid #content_grid.has_image_grid' +
  1124.          '{ display: grid !important; }';
  1125. $styles += '#content_grid.has_image_grid' +
  1126.          '{ grid-gap:0; grid-template-columns:repeat(auto-fill, minmax(200px, 1fr)); align-content: start; }';
  1127. $styles += '#thead, #theader, body[class^="is_default"] #tbody tr, body[class^="is_converted"] #tbody tr, body.show_invisibles #tbody tr, body.hide_invisibles #tbody tr:not(.invisible)' +
  1128.          '{ display: table; }'; // needed to make rows full width and dir_list scrollable
  1129.  
  1130. // filter
  1131. $styles += '#prev_btn, #next_btn' +
  1132.          '{ filter:invert(50%); }';
  1133. $styles += 'body.dark_theme #content_iframe, body.dark_theme #content_font' +
  1134.          '{ filter:invert(87.5%); }';
  1135. $styles += '#scale span:hover, body.dark_theme #sidebar #grid_btn, body.dark_theme #grid_btn .menu, body.dark_theme #parent_dir_menu, body.dark_theme #shortcuts_menu, body.dark_theme #toggle_sidebar' +
  1136.          '{ filter:invert(100%); }';
  1137.  
  1138. // float
  1139. $styles += '#content_header tr:first-of-type td:first-of-type, #checkbox_div label' +
  1140.          '{ float: left; }';
  1141. $styles += '#grid_btn, #content_header tr:first-of-type td:last-of-type' +
  1142.          '{ float: right; }';
  1143.  
  1144. // font-family
  1145. $styles += 'html, body, :root' +
  1146.          '{ font-family:'+ $settings.UI_font +', arial, "fira sans", helvetica, sans-serif; }';
  1147.  
  1148. // font-size
  1149. $styles += 'html' +
  1150.          '{ font-size: 100.001%; }';
  1151. $styles += 'body, :root' +
  1152.          '{ font-size:'+ $settings.UI_font_size +'; }';
  1153. $styles += '#sidebar, #sidebar_header, #sidebar_header thead th, #dir_list, #dir_list .details, #content_header, #content_header table' +
  1154.          '{ font-size: 0.875rem; }';
  1155. $styles += '#content_grid, .font_grid_item p' +
  1156.          '{ font-size: 1rem; }';
  1157. $styles += '#scale span' +
  1158.          '{ font-size: 2rem; }';
  1159. $styles += '#content_grid .font_grid_item h2' +
  1160.          '{ font-size:'+ $grid_font_size * 4 +'em; }';
  1161. $styles += '#content_font' +
  1162.          '{ font-size:'+ $grid_font_size +'em; }';
  1163. $styles += '.lorem.first:first-line' +
  1164.          '{ font-size:'+ $grid_font_size*1.33 +'em; }';
  1165.  
  1166. // font-variant
  1167. $styles += '.lorem.first:first-line' +
  1168.          '{ font-variant: small-caps }';
  1169.  
  1170. // font-weight
  1171. $styles += '#sidebar_header thead th, h2' +
  1172.          '{ font-weight: normal }';
  1173. $styles += '#dir_list .selected a, #dir_list .playing a' +
  1174.          '{ font-weight: bold }';
  1175.  
  1176. // height
  1177. $styles += 'html, body, :root, #parent_dir_menu a, #content_container, #main_content, #content_pdf, #content_iframe, .image_grid_item a' +
  1178.          '{ height: 100%; }';
  1179. $styles += '#sidebar_header, #parents_dir_menu, #parents_dir_menu div, #content_grid div img, #content_image img:not(.zoom_img)' +
  1180.          '{ height: auto; }';
  1181. $styles += '#dir_list thead th.checked:after' +
  1182.          '{ height: 8px; }';
  1183. $styles += '#toggle_sidebar' +
  1184.          '{ height: 14px; }';
  1185. $styles += '#dir_list td.icon' +
  1186.          '{ height: 16px; }';
  1187. $styles += '#grid_btn, body.use_custom_icons #dir_list tr.file.ignore a.icon::before' +
  1188.          '{ height: 18px; }';
  1189. $styles += '#audio' +
  1190.          '{ height: 32px; }';
  1191. $styles += 'body.dark_theme #dir_list thead th.checked:after' +
  1192.          '{ height: 1em; }';
  1193. $styles += '#scale span' +
  1194.          '{ height: 2rem; }';
  1195. $styles += '#content_grid.has_grid .image_grid_item' +
  1196.          '{ height: '+ $grid_image_size +'px; }';
  1197. $styles += '#sidebar' +
  1198.          '{ height:'+ window.innerHeight +'px; }';
  1199. $styles += '#sidebar_overlay, #content_overlay' +
  1200.          '{ height:'+ window.innerHeight + 'px; }';
  1201.  
  1202. // max-height
  1203. $styles += '#content_image img.zoom_img' +
  1204.          '{ max-height: none; }';
  1205. $styles += '#content_grid div img' +
  1206.          '{ max-height:'+ ($grid_image_size - $grid_image_size/8) +'px; }';
  1207. // min-height
  1208. $styles += '#sidebar' +
  1209.          '{ min-height: 100%; }';
  1210.  
  1211. // hyphens
  1212. $styles += '#parents_dir_menu div, #content_header td button, #content_font' +
  1213.          '{ hyphens: none; }';
  1214. $styles += 'html, body, :root, .lorem' +
  1215.          '{ hyphens: auto; }';
  1216.  
  1217. // left
  1218. $styles += '#sidebar ul, #parent_dir_menu, #dir_list thead, #dir_list tbody, #sidebar_overlay, #content_overlay, #close_audio:after, #content_header, #content_image, #content_pdf, #content_iframe, #content_grid, #content_font, body.use_custom_icons #dir_list tr.file.ignore a.icon::before, body.has_hidden_sidebar #toggle_sidebar' +
  1219.          '{ left: 0; }';
  1220. $styles += '#sidebar #grid_btn ul.menu' +
  1221.          '{ left: unset; }';
  1222. $styles += 'body.has_hidden_sidebar #sidebar_wrapper' +
  1223.          '{ left: 3px; }';
  1224. $styles += '#shortcuts_menu + ul > li > ul' +
  1225.          '{ left: 100%; }';
  1226.  
  1227. // letter-spacing
  1228. $styles += '.lorem.first:first-line, .font_grid_item p' +
  1229.          '{ letter-spacing: 0.1em }';
  1230. $styles += '#sidebar_header thead th' +
  1231.          '{ letter-spacing: 0.5em }';
  1232.  
  1233. // line-height
  1234. $styles += '.font_grid_item p' +
  1235.          '{ line-height: 1 }';
  1236. $styles += '#dir_list tr a, .lorem' +
  1237.          '{ line-height: 1.4 }';
  1238.  
  1239. // list-style
  1240. $styles += '#sidebar ul, #grid_btn .menu li' +
  1241.          '{ list-style-type: none; }';
  1242.  
  1243. // margin
  1244. $styles += 'html, body, :root, #sidebar ul, #parent_dir_menu, #parent_dir_menu, #parents_dir_menu, #parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu, #grid_btn, #dir_list tbody a, #content_grid p, #content_grid  h2' +
  1245.          '{ margin: 0; }';
  1246. // margin-top
  1247. $styles += '.image_grid_item + .font_grid_item' +
  1248.          '{ margin-top:-1px; }';
  1249. $styles += '#checkbox_div label input, #details_btn' +
  1250.          '{ margin-top: 0; }';
  1251. $styles += 'body.has_audio #dir_list input' +
  1252.          '{ margin-top: 1px; }';
  1253. // margin-right
  1254. $styles += '#content_video' +
  1255.          '{ margin-right: auto; }';
  1256. $styles += '#dir_list thead th.checked' +
  1257.          '{ margin-right: 0; }';
  1258. $styles += 'body.has_audio #dir_list input, #reload_btn' +
  1259.          '{ margin-right: 8px; }';
  1260. $styles += '#details_btn' +
  1261.          '{ margin-right: 0.5em; }';
  1262. $styles += '#dir_list thead th:last-of-type' +
  1263.          '{ margin-right: 1em; }';
  1264. $styles += '#checkbox_div' +
  1265.          '{ margin-right: calc(-6em - 4px); }';
  1266. // margin-bottom
  1267. $styles += '#details_btn' +
  1268.          '{ margin-bottom: 0; }';
  1269. $styles += 'body.has_audio #dir_list input' +
  1270.          '{ margin-bottom: 1px; }';
  1271. // margin-left
  1272. $styles += '#content_video' +
  1273.          '{ margin-left: auto; }';
  1274. $styles += '#dir_list thead th.checked' +
  1275.          '{ margin-left: 0; }';
  1276. $styles += 'body.has_hidden_sidebar #reload_btn' +
  1277.          '{ margin-left: 16pt; }';
  1278. $styles += '#details_btn' +
  1279.          '{ margin-left: 0.5em; }';
  1280. $styles += '#dir_list tbody tr' +
  1281.          '{ margin-inline-start:0; }';
  1282. // -webkit-margin
  1283. $styles += '#sidebar ul' +
  1284.          '{ -webkit-margin-before:0em !important;  -webkit-margin-after:0em !important; -webkit-padding-start:0em; }';
  1285.  
  1286. // opacity
  1287. $styles += '#content_pane #scale' +
  1288.          '{ opacity:0; }';
  1289. $styles += '#scale span:first-of-type, #scale span:last-of-type, #content_pane.has_ignored:before, #close_audio::after' +
  1290.          '{ opacity:0.3; }';
  1291. $styles += '#scale span:hover' +
  1292.          '{ opacity:0.5; }';
  1293. $styles += '#prev_btn, #next_btn, #close_audio:hover::after' +
  1294.          '{ opacity:0.6; }';
  1295. $styles += '#sidebar_header tbody tr:first-of-type td:last-of-type:hover > div, #shortcuts_menu div, #shortcuts_menu div, #parent_dir_menu, #prev_btn, #next_btn, #toggle_sidebar, body.use_custom_icons #dir_list tr.file.ignore a.icon::before' +
  1296.          '{ opacity: 0.7; }';
  1297. $styles += '#content_grid div img' +
  1298.          '{ opacity:0.8; }';
  1299. $styles += '#grid_btn:hover, #parent_dir_menu:hover, #prev_btn:hover, #next_btn:hover, #toggle_sidebar:hover, #content_pane.has_grid:hover #scale, #content_pane.has_font:hover #content_font ~ #scale, #content_pane.has_image:hover #content_image ~ #scale' +
  1300.          '{ opacity:1; }';
  1301.  
  1302. // outline
  1303. $styles += '#grid_btn, #dir_list tbody, #dir_list tbody a, #content_grid .font_grid_item, #content_font' +
  1304.          '{ outline: none; }';
  1305.  
  1306. // overflow
  1307. $styles += '#content_container' +
  1308.          '{ overflow: visible; }';
  1309. $styles += 'html, body, :root, #parents_dir_menu div, #shortcuts_menu, #dir_list, #dir_list tbody a, #main_content, #close_audio' +
  1310.          '{ overflow: hidden; }';
  1311. $styles += '#content_font, #content_grid, #content_image' +
  1312.          '{ overflow: auto; }';
  1313. $styles += '#dir_list tbody' +
  1314.          '{ overflow-y: auto; }';
  1315. $styles += '#sidebar, #content_font' +
  1316.          '{ overflow-wrap: break-word; }';
  1317. $styles += '.lorem' +
  1318.          '{ overflow-wrap: normal; }';
  1319.  
  1320. // padding
  1321. $styles += 'html, body, :root, #sidebar_wrapper, #sidebar ul, #parent_dir_menu, #sidebar_header tbody tr td, #parent_dir_menu, #parent_dir_menu a, #parents_dir_menu, #shortcuts_menu, #dir_list .details a, #content_pane, #content_pdf, #content_iframe,  audio::-webkit-media-controls-panel' +
  1322.          '{ padding: 0; }';
  1323. $styles += '#sidebar_header thead th' +
  1324.          '{ padding: 4px; }';
  1325. $styles += '.image_grid_item' +
  1326.          '{ padding:6px; }';
  1327. // padding-top
  1328. $styles += '#dir_list thead th, #dir_list .details, #prev_track, #next_track, #close_audio' +
  1329.          '{ padding-top: 0; }';
  1330. $styles += '#details_btn, #prev_btn, #next_btn' +
  1331.          '{ padding-top: 2px; }';
  1332. $styles += '#parents_dir_menu div, #grid_btn .menu li, #dir_list tbody a, #content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type, #title, body #content_audio_title td, #content_audio td' +
  1333.          '{ padding-top: 4px; }';
  1334. $styles += '#sidebar_header tbody tr:last-of-type td, #parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu + ul li div span' +
  1335.          '{ padding-top: 6px; }';
  1336. $styles += '#content_header table' +
  1337.          '{ padding-top: 7px; }';
  1338. $styles += '#content_grid .font_grid_item, .font_grid_item p' +
  1339.          '{ padding-top: 0.5rem; }';
  1340. $styles += '#content_image, #content_font div' +
  1341.          '{ padding-top: 2rem; }';
  1342. // padding-right
  1343. $styles += '#sidebar_header tbody tr:last-of-type td, #dir_list .details, #prev_track, #next_track, #close_audio' +
  1344.          '{ padding-right: 0; }';
  1345. $styles += '#parents_dir_menu div, #details_btn, #grid_btn .menu li, #dir_list tbody a, #content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type, #content_audio td, #close_audio' +
  1346.          '{ padding-right: 6px; }';
  1347. $styles += '#parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu + ul li div span' +
  1348.          '{ padding-right: 8px; }';
  1349. $styles += '#dir_list tbody tr, #content_header table, #title, #prev_btn, #next_btn' +
  1350.          '{ padding-right: 12px; }';
  1351. $styles += '#grid_btn .menu, #dir_list thead th, #content_audio_title td' +
  1352.          '{ padding-right: 29px; }';
  1353. $styles += '#content_grid .font_grid_item, #content_image, #content_font div' +
  1354.          '{ padding-right: 2.5rem; }';
  1355. // padding-bottom
  1356. $styles += '#prev_track, #next_track, #close_audio, #prev_btn, #next_btn' +
  1357.          '{ padding-bottom: 0px }';
  1358. $styles += '#details_btn, body.is_dirs_on_top #dir_list tbody tr.sorted:not(:last-of-type)' +
  1359.          '{ padding-bottom: 2px; }';
  1360. $styles += '#title, body #content_audio_title td' +
  1361.          '{ padding-bottom: 3px;}';
  1362. $styles += '#parents_dir_menu div, #grid_btn .menu li, #dir_list tbody a, #dir_list .details' +
  1363.          '{ padding-bottom: 4px; }';
  1364. $styles += '.specimen, .font_grid_item p' +
  1365.          '{ padding-bottom: 0.25em; }';
  1366. $styles += '#content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type' +
  1367.          '{ padding-bottom: 3px; }';
  1368. $styles += '#content_header table' +
  1369.          '{ padding-bottom: 5px; }';
  1370. $styles += '#sidebar_header tbody tr:last-of-type td, #parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu + ul li div span, #dir_list thead th, #content_audio td' +
  1371.          '{ padding-bottom: 6px; }';
  1372. $styles += '#dir_list thead th.details' +
  1373.          '{ padding-bottom: 9px; }';
  1374. $styles += '#content_grid .font_grid_item' +
  1375.          '{ padding-bottom: 0.5rem; }';
  1376. $styles += '#content_grid.has_image_grid' +
  1377.          '{ padding-bottom: 1rem; }';
  1378. $styles += '#content_image, #content_font div:first-of-type' +
  1379.          '{ padding-bottom: 2rem; }';
  1380. // padding-left
  1381. $styles += '#grid_btn .menu, #sidebar_header tbody tr:last-of-type td' +
  1382.          '{ padding-left: 0; }';
  1383. $styles += '#dir_list .audio a, #dir_list .video a, #checkbox_div' +
  1384.          '{ padding-left: 4px; }';
  1385. $styles += '#parents_dir_menu div, #dir_list td.icon, #dir_list .icon + td.name a, #checkbox_div #parents_dir_menu div, #details_btn, #grid_btn .menu li, #content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type, #content_audio td, #prev_track' +
  1386.          '{ padding-left: 6px; }';
  1387. $styles += '#parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #shortcuts_menu + ul li div span' +
  1388.          '{ padding-left: 8px; }';
  1389. $styles += '#content_header table, #dir_list td.size, #title, #prev_btn, #next_btn' +
  1390.          '{ padding-left: 12px; }';
  1391. $styles += '#dir_list thead th, #dir_list .details, #dir_list td.date' +
  1392.          '{ padding-left: 24px; }';
  1393. $styles += '#dir_list tbody a' +
  1394.          '{ padding-left: 27px; -webkit-padding-start: 27px; }';
  1395. $styles += '#content_audio_title td' +
  1396.          '{ padding-left: 29px; }';
  1397. $styles += '#sort_menu li span, #dir_list thead .name, #default' +
  1398.          '{ padding-left: 2em; }';
  1399. $styles += '#content_grid .font_grid_item, #content_image, #content_font div' +
  1400.          '{ padding-left: 2.5rem; }';
  1401. //-webkit-padding
  1402. $styles += '#dir_list .icon + td.name a' +
  1403.          '{ -webkit-padding-start:1em; }';
  1404.  
  1405. // position
  1406. $styles += '#sidebar_wrapper, #sidebar_header, #sidebar_header tbody tr, #sidebar_header tbody tr:first-of-type td:first-of-type, #sidebar_header tbody tr:last-of-type td, #dir_list, #dir_list thead, #dir_list thead th.checked ,#dir_list tr.ignore a, #dir_list tr.ignore.app a, #dir_list tr.ignore td.details, #shortcuts_menu + ul > li.has_submenu, #content_pane, #close_audio, #content_grid div img, #content_image img:not(.zoom_img)' +
  1407.          '{ position: relative; }';
  1408. $styles += '#sidebar ul, #handle, #parent_dir_menu, #toggle_sidebar, body.has_hidden_sidebar #sidebar_wrapper, #dir_list tbody, #dir_list thead th.checked:after, #sidebar_overlay, #content_overlay, #content_header, #close_audio:after, #content_grid, #content_image, #content_font, #content_pdf, #content_iframe, #scale, #prev_btn, #next_btn, body.use_custom_icons #dir_list tr.file.ignore a.icon::before' +
  1409.          '{ position: absolute; }';
  1410.  
  1411. // right
  1412. $styles += '#sidebar ul, #parent_dir_menu, #grid_btn .menu, #dir_list thead, #dir_list tbody, #sidebar_overlay, #content_overlay, #close_audio:after, #content_header, #content_image, #content_pdf, #content_iframe, #content_grid, #content_font, #next_btn' +
  1413.          '{ right: 0; }';
  1414. $styles += '#toggle_sidebar' +
  1415.          '{ right: 4px; }';
  1416. $styles += '#handle' +
  1417.          '{ right: -4px; }';
  1418. $styles += '#scale' +
  1419.          '{ right: 1rem; }';
  1420.  
  1421. // table-layout
  1422. $styles += '#dir_list' +
  1423.          '{ table-layout: fixed; }';
  1424.  
  1425. // text-align
  1426. $styles += '#sidebar ul, #dir_list thead, #dir_list tbody, #dir_list tbody .name, #dir_list .details, #content_header tr:first-of-type td:first-of-type, #content_grid, #content_grid .font_grid_item, .specimen' +
  1427.          '{ text-align: left; }';
  1428. $styles += '#parent_dir_menu a, #parents_dir_menu, #parents_dir_menu div, #shortcuts_menu div, #content_header, #title, #content_grid .image_grid_item, #content_image, #content_audio_title, #content_audio td, #scale span' +
  1429.          '{ text-align: center; }';
  1430. $styles += '#grid_btn .menu li, #dir_list .size, #dir_list .date, #content_header tr:first-of-type td:last-of-type' +
  1431.          '{ text-align: right; }';
  1432. $styles += '.lorem' +
  1433.          '{ text-align: justify; }';
  1434.  
  1435. // text-decoration
  1436. $styles += 'a, a:hover' +
  1437.          '{ text-decoration: none !important; }';
  1438.  
  1439. // text-indent
  1440. $styles += '#shortcuts li' +
  1441.          '{ text-indent: 1em; }';
  1442.  
  1443. // text-transform
  1444. $styles += '.font_grid_item p' +
  1445.          '{ text-transform: uppercase; }';
  1446.  
  1447. // top
  1448. $styles += '#handle, #parent_dir_menu, #content_container, #sidebar_overlay, #content_overlay, #content_header, #close_audio:after, #content_image, #content_image img.zoom_img, #content_pdf, #content_iframe, #prev_btn, #next_btn, body.use_custom_icons #dir_list tr.file.ignore a.icon::before' +
  1449.          '{ top: 0; }';
  1450. $styles += '#shortcuts_menu + ul > li > ul, body.light_theme #grid_btn .menu' +
  1451.          '{ top: -1px !important; }';
  1452. $styles += 'body.has_hidden_sidebar #sidebar_wrapper, #dir_list thead th.checked:after' +
  1453.          '{ top: 2px; }';
  1454. $styles += '#toggle_sidebar' +
  1455.          '{ top: 4px; }';
  1456. $styles += 'body.dark_theme #grid_btn .menu' +
  1457.          '{ top: -7px; }';
  1458. $styles += '#content_grid div img, #content_image img:not(.zoom_img), .vert_center' +
  1459.          '{ top: 50%; }';
  1460.  
  1461. // transform
  1462. $styles += 'body.has_hidden_sidebar #toggle_sidebar, #dir_list thead th.checked:not(.up):after, #next_track, #next_btn' +
  1463.          '{ transform:rotate(180deg); }';
  1464. $styles += '#close_audio:after' +
  1465.          '{ transform:rotate(45deg); }';
  1466. $styles += '.vert_center' +
  1467.          '{ transform:translateY(50%); }';
  1468. $styles += '#content_grid div img, #content_image img:not(.zoom_img)' +
  1469.          '{ transform:translateY(-50%); }';
  1470. $styles += '#content_image img.zoom_img' +
  1471.          '{ transform:translateY(0); }';
  1472.  
  1473. // transition
  1474. $styles += '#scale' +
  1475.          '{ transition:opacity 1s ease-in-out; }';
  1476.  
  1477. // user-select
  1478. $styles += '#sidebar_header, #content_image img:not(.zoom_img)' +
  1479.          '{ user-select:none; -webkit-user-select:none; }';
  1480.  
  1481. // vertical-align
  1482. $styles += '#dir_list .details' +
  1483.          '{ vertical-align: top }';
  1484. $styles += '#sidebar_header tbody tr:last-of-type td, #parent_dir_menu a, #parents_dir_menu div, #shortcuts_menu div, #content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type, #title, #content_grid .image_grid_item' +
  1485.          '{ vertical-align:middle; }';
  1486.  
  1487. // white-space
  1488. $styles += '#sidebar_header tbody tr:last-of-type td, #parents_dir_menu div, #parents_dir_menu + ul li a, #shortcuts_menu + ul li a, #shortcuts_menu + ul li > span, #dir_list tbody a, .specimen, .lorem' +
  1489.          '{ white-space: normal; }';
  1490. $styles += '#grid_btn .menu li' +
  1491.          '{ white-space: pre; }';
  1492. $styles += '#dir_list thead' +
  1493.          '{ white-space: pre-wrap; }';
  1494.  
  1495. // width
  1496. $styles += 'html, body, :root, table, #sidebar_header tbody tr:first-of-type td:nth-of-type(even), #parent_dir_menu a, #dir_list thead, #tbody, #tbody tr, #shortcuts_menu + ul > li > ul, #grid_btn .menu li, body.has_hidden_sidebar #content_pane, #content_container, #content_header, #content_pdf, #content_iframe' +
  1497.          '{ width: 100%; }';
  1498. $styles += '#content_grid, #content_grid div img, #content_image img:not(.zoom_img)' +
  1499.          '{ width: auto; }';
  1500. $styles += '#handle' +
  1501.          '{ width: 8px; }';
  1502. $styles += '#toggle_sidebar' +
  1503.          '{ width: 16px; }';
  1504. $styles += 'body.use_custom_icons #dir_list tr.file.ignore a.icon::before' +
  1505.          '{ width: 20px; }';
  1506. $styles += '#sidebar_header tbody tr:first-of-type td:nth-of-type(odd)' +
  1507.          '{ width: 24px; }';
  1508. $styles += '#grid_btn' +
  1509.          '{ width: 28px; }';
  1510. $styles += '#dir_list thead th.checked:after, #prev_track, #next_track, #close_audio, #scale span' +
  1511.          '{ width: 2rem; }';
  1512. $styles += '#shortcuts_menu div, #checkbox_div' +
  1513.          '{ width: 6em; }';
  1514. $styles += '#content_header tr:first-of-type td:first-of-type, #content_header tr:first-of-type td:last-of-type' +
  1515.          '{ width: 4em; }';
  1516. $styles += 'body.has_hidden_sidebar #sidebar_wrapper' +
  1517.          '{ width: 0 !important; }';
  1518. $styles += '#dir_list .size, #dir_list .kind' +
  1519.          '{ width: 16%; }';
  1520. $styles += '#dir_list .date' +
  1521.          '{ width: 30%; }';
  1522. $styles += '#content_grid.has_grid .image_grid_item' +
  1523.          '{ width: '+ $grid_image_size +'px; }';
  1524. $styles += 'body.has_hidden_sidebar #content_pane, #content_header tr:first-of-type td:nth-of-type(2)' +
  1525.          '{ width: 100% !important; }';
  1526. $styles += 'body:not(.has_hidden_sidebar) #sidebar_wrapper' +
  1527.          '{ width:'+ $UI_pref_width +'%; }';
  1528. $styles += '#content_pane' +
  1529.          '{ width:'+ (100 - $UI_pref_width).toString() +'%; }';
  1530. $styles += '#content_grid .font_grid_item' +
  1531.          '{ width:calc(100% - 5rem); }';
  1532. // max-width
  1533. $styles += 'html, body, :root, #content_image img:not(.zoom_img)' +
  1534.          '{ max-width: 100%; }';
  1535. $styles += '#content_image img.zoom_img' +
  1536.          '{ max-width: none; }';
  1537. $styles += '#sidebar_header tbody tr:first-of-type td:nth-of-type(odd)' +
  1538.          '{ max-width: 24px; }';
  1539. $styles += '#content_grid div img' +
  1540.          '{ max-width:'+ ($grid_image_size - $grid_image_size/8) +'px; }';
  1541. // min-width
  1542. $styles += 'body:not(.has_hidden_sidebar) #sidebar_header tbody tr:first-of-type td:nth-of-type(odd)' +
  1543.          '{ min-width: 24px; }';
  1544. $styles += '#dir_list .size, #dir_list .kind' +
  1545.          '{ min-width: 5em; }';
  1546. $styles += '#dir_list td.date' +
  1547.          '{ min-width: 12em; }';
  1548. $styles += 'body:not(.has_hidden_sidebar) #dir_list' +
  1549.          '{ min-width: 100px; }';
  1550. $styles += 'body:not(.has_hidden_sidebar) #sidebar_wrapper' +
  1551.          '{ min-width: 220px; }';
  1552.  
  1553. // will-change
  1554. $styles += '#sidebar_wrapper, #content_pane' +
  1555.          '{ will-change: width }';
  1556.  
  1557. // word-break
  1558. $styles += '#content_header td button' +
  1559.          '{ word-break: none; }';
  1560. $styles += '#title' +
  1561.          '{ word-break: break-word; }';
  1562. $styles += '#content_font' +
  1563.          '{ word-break: break-all; }';
  1564. $styles += '.lorem' +
  1565.          '{ word-break: normal; }';
  1566.  
  1567. // z-index
  1568. $styles += '#content_grid' +
  1569.          '{ z-index: -1; }';
  1570. $styles += '#content_pane.has_grid #content_grid' +
  1571.          '{ z-index: 1; }';
  1572. $styles += '#scale, #prev_btn, #next_btn' +
  1573.          '{ z-index: 10; }';
  1574. $styles += '#parents_dir_menu + ul, #content_header' +
  1575.          '{ z-index: 20; }';
  1576. $styles += '#handle' +
  1577.          '{ z-index: 1000; }';
  1578. $styles += '#sidebar_header' +
  1579.          '{ z-index: 2000; }';
  1580. $styles += '#shortcuts_menu + ul, #toggle_sidebar, #sidebar_overlay, #content_overlay' +
  1581.          '{ z-index: 9999; }';
  1582. $styles += 'body.has_hidden_sidebar #sidebar_header' +
  1583.          '{ z-index:unset; }';
  1584.  
  1585.     // Gecko Styles:
  1586.     var $gecko_styles = '';
  1587.  
  1588.     $gecko_styles += 'html, body.is_gecko { border: solid 1px gray !important; }';
  1589.     $gecko_styles += 'body.is_gecko button { padding:0; }';
  1590.     $gecko_styles += 'body.is_gecko #grid_btn .menu { top:-7px; left:-120px; }';
  1591.     $gecko_styles += 'body.is_gecko thead {font-size:100%;}';
  1592.     $gecko_styles += 'body.is_gecko #dir_list th, body.is_gecko #dir_list td {width:auto;}';
  1593.     $gecko_styles += 'body.is_gecko #dir_list .dir::before {position:absolute;}';
  1594.     $gecko_styles += 'body.is_gecko.use_default_icons:not(.is_converted_list) #dir_list .file .name .icon { padding-left:4px; background:none; }';
  1595.     $gecko_styles += 'body.is_gecko.use_default_icons #dir_list .file .name .icon img { margin-right:6px; height:14px; }';
  1596.     $gecko_styles += 'body.is_gecko #tbody > tr > td:not(:first-of-type) { float:left }';
  1597.     $gecko_styles += 'body.is_gecko #content_audio_title td { padding-top: 6px; }';
  1598.     $gecko_styles += 'body.is_gecko #content_audio_title td { padding-bottom: 0; }';
  1599.     $gecko_styles += 'body.is_gecko #prev_track { padding-left: 16px; }';
  1600.     $gecko_styles += 'body.is_gecko #close_audio { background-color: #252525; }';
  1601.     $gecko_styles += 'body.is_gecko #close_audio:after { filter:invert(100%); opacity:0.5; }';
  1602.     $gecko_styles += 'body.is_gecko #close_audio:hover:after { opacity:0.75; }';
  1603.     $gecko_styles += 'body.is_gecko.dark_theme #prev_track, body.is_gecko.dark_theme #next_track { background: #252525  '+ $next_track_arrow_gecko +' center no-repeat; }';
  1604.     $gecko_styles += 'body.is_gecko #prev_track:hover, body.is_gecko #next_track:hover { background: #252525  '+ $next_track_arrow_gecko_hover +' center no-repeat; }';
  1605.     $gecko_styles += 'body.is_gecko #content_title td:first-of-type, body.is_gecko #content_title td:last-of-type { padding-top:8px; }';
  1606.  
  1607.     // ADD STYLES
  1608.     const $font_preview_styles = document.createElement('style');
  1609.     const $custom_styles = document.createElement("style");
  1610.     const $custom_gecko_styles = document.createElement("style");
  1611.  
  1612.     const $highlightjs_link = document.createElement('link');
  1613.           $highlightjs_link.setAttribute('rel','stylesheet') ;
  1614.           $highlightjs_link.setAttribute('href','http://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.14.2/styles/default.min.css') ;
  1615.     document.head.appendChild($highlightjs_link);
  1616.  
  1617.    function addStyles() {
  1618.       // for font previews
  1619.       $font_preview_styles.appendChild(document.createTextNode(""));
  1620.       document.head.append($font_preview_styles);
  1621.       var $font_styles = '';
  1622.       $font_preview_styles.append( $font_styles );
  1623.       // basic UI styles
  1624.       $custom_styles.appendChild(document.createTextNode(""));
  1625.       $custom_styles.append($styles);
  1626.       document.head.appendChild($custom_styles);
  1627.       // Gecko styles
  1628.       if ( $userAgent.indexOf('Firefox') > -1 ) {
  1629.          $custom_gecko_styles.appendChild(document.createTextNode(""));
  1630.          $custom_gecko_styles.append($gecko_styles);
  1631.          document.head.appendChild($custom_gecko_styles);
  1632.       }
  1633.    }
  1634.    addStyles();
  1635.    // ***** END STYLES ***** //
  1636.  
  1637.    // ***** BUILD MENUS ***** //
  1638.    var $paths_arr = [];
  1639.    const parentLinksArr = function() { // create array of parent links from $location w/o query string
  1640.       let $path = $location; // https://www.example.com/path/to/my/dir/
  1641.        while ( $path.lastIndexOf('/') > 0 && !$path.endsWith(':/') ) {
  1642.            $path = $path.slice( 0,$path.lastIndexOf('/') );
  1643.            $paths_arr.push($path);
  1644.        }
  1645.        $paths_arr.pop(); // remove last element
  1646.       return $paths_arr;
  1647.    };
  1648.    parentLinksArr();
  1649.  
  1650.    // MENUS: Create menu list items
  1651.    var $menu_item;
  1652.    const menuItems = function(x,y,i,b) { // (link, name, count, boolean)
  1653.       let $qstr = '/?';
  1654.       if ( b === true ) { // don't include query string in link
  1655.          $qstr = '';
  1656.          $query_prefs = '';
  1657.       }
  1658.       $menu_item = '<li><a href="'+ x[i] + $qstr + $query_prefs +'">' + y[i] + '/</a></li>';
  1659.       return $menu_item;
  1660.    };
  1661. 	// Parent directory link setup
  1662.    var $parent_dir_link;
  1663.    function setParentLink() {
  1664.       let $query_prefs = new URLSearchParams( window.location.search );
  1665.       $query_prefs.delete('file');
  1666.  
  1667.       $UI_pref_history_arr = $query_prefs.get('history') !== null ? $query_prefs.get('history').split(' ') : [];
  1668.  
  1669.       if ( $UI_pref_history_arr.length == 1 ) {
  1670.          $query_prefs.set('selected',$UI_pref_history_arr.shift(0));
  1671.          $query_prefs.delete('history');
  1672.       } else if ( $UI_pref_history_arr.length > 1 ) {
  1673.          $query_prefs.set('selected',$UI_pref_history_arr.shift(0));
  1674.          $query_prefs.set('history',$UI_pref_history_arr.join('+'));
  1675.       } else {
  1676.          $query_prefs.delete('selected');
  1677.       }
  1678.       let $qstr = $query_prefs.toString().length == 0 ? '' : '?';
  1679.       $query_prefs.sort();
  1680.       $parent_dir_link = $location_arr.slice(0,-2).join('/') + '/' + $qstr + decodeURIComponent($query_prefs);
  1681.  
  1682.       $parent_dir_menu.find('a').attr( 'href', $parent_dir_link );
  1683.    }
  1684.    setParentLink();
  1685. 	// Click parent directory menu button
  1686.    $parent_dir_menu.on('click','a',function(e) {
  1687.       e.preventDefault();
  1688.       setParentLink(); // update link in case query string has changed
  1689.       $('#parent_dir_menu').find('a').attr( 'href', $parent_dir_link );
  1690.       window.location = $parent_dir_link;
  1691.    });
  1692.  
  1693.    // MENUS: Directory Parents Links
  1694.    const parents_dir_menu_arr = function() {
  1695.       var $parents_dir_menu_items = [];
  1696.       // make array of directory parents menu items
  1697.       for ( let i = 1, n = $paths_arr.length + 1; i < n; i+=1 ) {
  1698.          $parents_dir_menu_items[i] = menuItems( $paths_arr, $paths_arr, i, false);
  1699.       }
  1700.       $parents_dir_menu_items.pop(); // remove current directory
  1701.  
  1702.       if ( $parents_dir_menu_items[1] !== undefined ) {
  1703.          let str = $parents_dir_menu_items[1].slice($parents_dir_menu_items[1].lastIndexOf('?'),$parents_dir_menu_items[1].lastIndexOf('">'));
  1704.          for ( let i = 1; i < $parents_dir_menu_items.length; i+=1 ) { // recursively update selected and history query str
  1705.             str = str.replace(/selected=\d+&*/,'').replace(/history=(\d+)$/,'selected=$1').replace(/history=(\d+)\+/,'selected=$1&history=').replace(/&$/,'');
  1706.             $parents_dir_menu_items[i] = $parents_dir_menu_items[i].replace(/\?.+?">/,str +'">');
  1707.          }
  1708.       }
  1709.       // cleanup links
  1710.       $parents_dir_menu_items = $parents_dir_menu_items.join('')
  1711.          .replace(/%20/g,' ').replace(/file=.+?&/g,'&').replace(/file=.+?/g,'').replace(/>\/(?!\/)/g,'>').replace(/>\/\/\/\/</,'>/<').replace(/>\/\/\/</,'>/<');
  1712.       return $parents_dir_menu_items;
  1713.    };
  1714.  
  1715.    // MENUS: User Shortcuts
  1716.    var $menu_items = [];
  1717.    var $shortcuts_links_arr = [];
  1718.  
  1719.    const shortcutMenus = function() {
  1720.       const $shortcuts = $settings.shortcuts;
  1721.  
  1722.       if ( $shortcuts.length > 0 ) {
  1723.          for ( let i = 0; i < $shortcuts.length; i+=1 ) {
  1724.             var $links_arr = [];
  1725.             var $links = $shortcuts[i].links;
  1726.             // make array of links
  1727.             for ( let j = 0; j < $links.length; j+=1 ) {
  1728.                if ( !$links[j].link.endsWith('/') ) {
  1729.                   $links[j].link = $links[j].link.slice(0,$links[j].link.lastIndexOf('/') + 1) + '?file=' + $links[j].link.slice($links[j].link.lastIndexOf('/') + 1) ;
  1730.                }
  1731.                $shortcuts_links_arr.push($links[j].link);
  1732.                $links_arr[j] = '<li><a href="'+ $links[j].link +'">' + $links[j].link_name + '</a></li>';
  1733.             }
  1734.             var $links_arr_str = $links_arr.join('');
  1735.             $menu_items[i] = '<li class="has_submenu"><a>'+ $shortcuts[i].menu_title +'</a><ul>'+ $links_arr_str +'</ul></li>';
  1736.          }
  1737.          $menu_items = $menu_items.join('');
  1738.       }
  1739.       return ($shortcuts_links_arr,$menu_items);
  1740.    };
  1741.    shortcutMenus();
  1742.  
  1743.    // MENUS: Other menu items
  1744.    var   $sort_by =           $('<li id="sort_by" class="has_submenu rule"><span>Sort by&hellip;</span><ul id="sort_menu"><li><span>Name</span></li><li id="sort_by_size"><span>Size</span></li><li id="sort_by_date"><span>Date</span></li><li><span>Kind</span></li><li><span>Extension</span></li><li><span>Default</span></li></ul>');
  1745.    const $autoload_media =    $('<li id="autoload_media" class="rule"><span id="autoload_media_menu">Autoload Media</span></li>');
  1746.    const $toggle_dark_theme = $('<li id="toggle_dark_theme_menu_item" class="checked"><div><span id="dark_theme">Dark Theme</span><span id="light_theme">Light Theme</span></div></li>');
  1747.    const $toggle_alt_bckgrd = $('<li id="toggle_alternate_background_menu_item" class="rule"><span id="alternate_background">Alternate Backgrounds</span></li>');
  1748.    // const $text_editing =      $('<li id="text_editing" class="has_submenu rule"><span>Text Editing</span><ul id="text_editing_menu"><li id="split_view_menu_item"><span id="split_view">Split View</span></li><li id="preview_text_menu_item" class="rule"><span id="preview_text">Preview Text Files</span><span id="edit_text">Edit Text Files</span></li></ul>');
  1749.    const $default_settings =  $('<li><a href="#" id="default_settings" title="Delete URL query string and reload page.">Default User Settings</a></li>');
  1750.    const $export_settings =   $('<li class="rule"><a href="#" id="export_settings" title="Export user settings to text file.">Export User Settings</a></li>');
  1751.    const $contact_link =      $('<li><a id="contact" href="mailto:mshroud@vivaldi.net">Contact</a></li>');
  1752.    const $donate_link =       $('<li><a id="donate" href="https://paypal.me/mschrauzer" target="_blank">Donate</a></li>');
  1753.  
  1754.    function assembleMenus() { // called by buildUI();
  1755.       $parents_dir_menu.siblings('ul').append( parents_dir_menu_arr() );
  1756.       $shortcuts_menu.siblings('ul').append( $menu_items, $sort_by, $toggle_dark_theme, $toggle_alt_bckgrd, $autoload_media, $default_settings, $export_settings, $contact_link, $donate_link );
  1757.    }
  1758.    assembleMenus();
  1759.    // ***** END BUILD MENUS ***** //
  1760.  
  1761.    // ***** DIRECTORY LIST Setup ***** //
  1762.    // CONVERT INDEX PAGES TO DEFAULT (Chrome) STRUCTURE
  1763.  
  1764.    // Convert matched date and size strings to default size and date format, calculate data-values for sorting
  1765.    var yr, mo, dd, pref;
  1766.    var factor = {k:1, kb:1, m:1000, mb:1000, g:1000000, gb:1000000, t:1000000000,tb:1000000000}; // for file size conversion
  1767.    var sizeCalc = function(x,y) { // x = number, y = byte size
  1768.       y === '' ? y = 'k' : y = y;
  1769.       return x == '-' ? 0 : x * factor[ y.toString().toLowerCase() ]; // convert byte size to multiplication factor
  1770.    };
  1771.    var sizeAndDate = function(match,p1,p2,p3,p4,p5,p6,offset,string) {
  1772.       p1.toString().length == 4 ? (yr = p1, dd = p3) : (yr = p3, dd = p1);
  1773.       p2.toString().length == 3 ? mo = "JanFebMarAprMayJunJulAugSepOctNovDec".indexOf(p2)/3 + 1 : mo = p2; // convert month into number, or use number
  1774.       p6 = undefined|'' ? p6 = 1 : p6 = p6;
  1775.       mo.toString().length == 1 ? pref = 0 : pref = null; // add a zero before single digit months (i.e., multiply year by 10)
  1776.       return '<td class="size details" data-value="'+ sizeCalc(p5,p6) +'">' + [p5,p6].join('') + '</td><td class="date details" data-value="' + [yr, pref, mo, dd, p4.replace(/:/, '') ].join('') +'">'+ [yr, mo, dd].join('-') +' '+ [p4].join(':') +'</td></tr>\n';
  1777.    };
  1778.    // Standardize directory lists
  1779.    function convertDirList() {
  1780.       var $list_items;
  1781.       // AMPPS index pages
  1782.       let $protocol = window.location.protocol;
  1783.       if ( $protocol.indexOf('localhost') > -1 && $body.find('> title:contains(AMPPS)').length ) {
  1784.          $dir_list = $body.find('> center > div > table');
  1785.          $dir_list.remove();
  1786.          $body.addClass('is_ampps').empty().append($dir_list);
  1787.       }
  1788.       // Pre-type
  1789.       if ( $protocol !== 'file:' && $body.find('> pre').length > 0 ) {
  1790.          $list_items = $body.find('> pre').html();
  1791.          $body.addClass('is_converted_pre').find('> pre').remove();
  1792.  
  1793.          $list_items = $list_items
  1794.             .replace(/^.+?\n/, '') // delete header row
  1795.             .replace(/^.+?Parent Directory.+?\n/gm, '\n') // delete parent directory link
  1796.             .replace(/^\s*<a.+?>\.\.\/<\/a>\s*$/gm, '') // delete parent directory link (list type)
  1797.             .replace(/^\s*<img .+?>\s*/gm, '') // delete all images (icons)
  1798.             .replace(/^\s*<address>.+?<\/address>\s*/,'') // delete address element
  1799.             .replace(/^\s*<a href="(.+?)">(.+?)<\/a>\s*/gm, '<tr><td data-value=""><a class="icon" href="$1">$2</a></td>') // create name cell
  1800.             .replace(/(\d{2}|\d{4})[\/-](\d{2}|\w{3})[\/-](\d{2}|\d{4})\s+?([\d:]+)\s*([\.\d]+)([A-z]{0,2})\s*$/gm, sizeAndDate); // dates (search dd-mmm-yyyy hh:mm) and sizes
  1801.       };
  1802.       // List-type
  1803.       if ( $protocol !== 'file:' && $body.find('> ul').length > 0 ) {
  1804.          $list_items = $body.find('> ul').html();
  1805.          $body.addClass('is_converted_list').find('> ul').remove();
  1806.  
  1807.          if ( $list_items.indexOf('</a></li>') != -1 ) {
  1808.             $list_items = $list_items.replace(/<li>\s*/g,'<tr><td data-value="">').replace(/\s*<\/li>/g, '</td></tr>\n');
  1809.             $list_items = $list_items.replace(/data-value=""><a href="(.+?)">\s+(.+?)<\/a>/g, 'data-value=""><a class="icon" href="$1">$2<\/a>');
  1810.             $list_items = $list_items.replace(/<tr.+?Parent Directory.+?<\/tr>/,'');
  1811.          }
  1812.       }
  1813.       // Table-type
  1814.       if ( $protocol !== 'file:' && $body.find('> table').length > 0 ) {
  1815.          $list_items = $body.find('> table:last-of-type tbody').length > 0 ? $body.find('> table:last-of-type tbody').html() : $body.find('> table:last-of-type');
  1816.          $body.addClass('is_converted_table').find('> table').remove();
  1817.  
  1818.          $list_items = $list_items
  1819.          //            .replace(/<img .+?>/g, '') // delete all images (icons)
  1820.             .replace(/<tr><th.+?\/th><\/tr>/g, '') // delete empty tr
  1821.             .replace(/<tr><td.+?Parent Dir.+?<\/td><\/tr>/, '') // delete empty tr
  1822.             .replace(/(?:<th>|<td>|<td \w+="\w+">)(?:&nbsp;|\s*)(?:<\/th>|<\/td>)/g, '') // delete empty th or td
  1823.             .replace(/<td>\s*<a href="(.+?)">(.+?)<\/a>\s*<\/td>/g, '<td class="name" data-value=""><a class="icon" href="$1">$2</a></td>')
  1824.             .replace(/<tr><td.*?><img (.+?)><\/td><td (.+?)><a (.+?)>(.+?)<\/a>/g, '<tr><td $2><a $3><img $1>$4</a>') // move default image to .name td
  1825.             .replace(/(?:<td>|<td \w+="\w+">)(\d{4}|\d{2})-(\d{2}|\w{3})-(\d{4}|\d{2})\s*([\d:-]*)\s*<\/td>(?:<td>|<td \w+="\w+">)\s*([-\.\d]*)([A-z]*)\s*<\/td><\/tr>/g, sizeAndDate)
  1826.             .replace(/^\s*<address>.+?<\/address>\s*$/,''); // delete address line
  1827.       }
  1828.       // Gecko-style local index pages
  1829.       if ( $protocol === 'file:' && $userAgent.indexOf('Firefox') > -1 ) {
  1830.          $body.find('> table').find('> thead').find('th[colspan="2"]').attr('colspan',1);
  1831.          $list_items = $body.find('> table').find('> tbody').html();
  1832.          $body.find('> table').remove();
  1833.  
  1834.          $list_items = $list_items
  1835.             .replace(/<table class="ellipsis"><tbody><tr><td>/g,'')
  1836.             .replace(/<\/a><\/td><\/tr><\/tbody><\/table>/g,'')
  1837.             .replace(/sortable-data="\d+?/g,'data-value="')
  1838.             .replace(/<td data-value="(\d+)">([\d-]+)<\/td>\s*<td>(.+?)<\/td>/g,'<td data-value="$1">$2, $3</td>')
  1839.             .replace(/<td(.+?)><a/g,'<td class="name" $1><a class="icon"');
  1840.       }
  1841.       // Default Chrome type
  1842.       if ( $protocol === 'file:' && $body.find('> table').length > 0 && $userAgent.indexOf('Firefox') < 0) {
  1843.          $list_items = $body.find('> table tbody').html();
  1844.          $body.addClass('is_default_table').find('> table').remove();
  1845.       }
  1846.    $dir_list_body.append($list_items);
  1847.    }
  1848.    convertDirList();
  1849.    // ***** END CONVERT INDEX PAGES ***** //
  1850.  
  1851.    // Append directory list
  1852.  
  1853.    var $dir_list_row = $dir_list_body.find('> tr');
  1854.    var $dir_list_item_name = $dir_list_row.find('a').parent('td');
  1855.    var $dir_list_details = $dir_list_item_name.nextAll();
  1856.    $dir_list_details.addClass('details');
  1857.  
  1858.    // ***** END CONVERT INDEX PAGES ***** //
  1859.  
  1860.     // ***** PREPARE DIR LIST ***** //
  1861.  
  1862.     var $this_link;
  1863.     var $this_text;
  1864.     var $this_ext;
  1865.  
  1866.     // Get dir_list item row
  1867.     var thisRow = function(x) {
  1868.         return $(x).closest('#dir_list > tbody > tr').length > 0 ? $(x).closest('#dir_list > tbody > tr') : $(x).closest('#dir_list > li');
  1869.     };
  1870.     // Get row link
  1871.     var thisLink = function(x) {
  1872.         return $(x).find('a').length > 0 ? $(x).find('a').attr('href') : $(x).attr('href');
  1873.     };
  1874.     // Get row name
  1875.     var thisText = function(x) {
  1876.         return $(x).find('a').length > 0 ? decodeURIComponentSafe( $(x).find('a').text().toLocaleLowerCase() ) : decodeURIComponentSafe( $(x).text().toLocaleLowerCase() );
  1877.     };
  1878.     // get row text
  1879.     var thisExt = function(x) {
  1880.         let $this_name = thisText(x);
  1881.         //      return $this_link.endsWith('app/') ? 'app' : $this_link.endsWith('/') ? '/' : $this_link.lastIndexOf('.') === -1 ? undefined : $this_link.toLowerCase().slice( $this_link.lastIndexOf('.') + 1 );
  1882.         return $this_name.endsWith('app/') ? 'app' : $this_name.endsWith('/') ? '/' : $this_name.lastIndexOf('.') === -1 ? undefined : $this_name.toLowerCase().slice( $this_name.lastIndexOf('.') + 1 );
  1883.     };
  1884.     // Normalize row name data-value
  1885.     function stringNormalize(str) {
  1886.         return str.normalize('NFD').replace(/[\u0300-\u036f]/g, "").replace(/ª/g,'a').replace(/[æÆ]/g,'ae').replace(/©/g,'c').replace(/[ÐÐ]/g,'d').replace(/fi/g,'fi').replace(/fl/g,'fl').replace(/[œŒ]/g,'oe').replace(/[ºøØ]/g,'o').replace(/π∏/g,'p').replace(/®/g,'r').replace(/ß/g,'ss').replace(/™/g,'tm').replace(/[‘’]/g,'\'').replace(/[“”«»]/g,'"').replace(/[†‡§]/g,'*');
  1887.     }
  1888.     // Dir_List: Classify items
  1889.     function classifyDirListItems() {
  1890.         $dir_list_row.each(function() {
  1891.             let row = {};
  1892.             $this_link = thisLink(this);
  1893.             $this_text = thisText(this).endsWith('/') ? thisText(this).slice(0,-1) : thisText(this); // don't include '/'
  1894.             $this_ext = thisExt(this);
  1895.             // add classes and data to row cells
  1896.             $(this).attr('id',$(this).index()).find('td').first().addClass('name').attr( 'data-value',stringNormalize( $this_text )).next('td:not(.kind)').attr('class','size').next('td:not(.kind)').attr('class','date'); // add tr ID and td.name data-value
  1897.             // add dir or file classes
  1898.             if ( $this_ext === '/' ) { // add tr data-ext
  1899.                 $(this).addClass('dir').attr('data-ext','dir');
  1900.             } else {
  1901.                 $(this).addClass('file').attr('data-ext',$this_ext);
  1902.             }
  1903.             // add tr invisible class
  1904.             if ( $this_text.startsWith('.') ) {
  1905.                 $(this).addClass('invisible');
  1906.             }
  1907.             // add kind and ext detail columns
  1908.           $(this).append('<td class="detailsColumn details kind" data-value="File">File</td>')
  1909.               .append('<td class="detailsColumn details ext" data-value="'+ $this_ext +'">&nbsp;</td>');
  1910.           if ( $this_ext == undefined ) {
  1911.               $(this).addClass('code').attr('data-type','Code').attr('data-kind','code').find('td.kind').attr('data-value','Code').text('Code');
  1912.               return;
  1913.           } else if ( !JSON.stringify($row_types).includes($this_ext) ) { // else classify as "other" if extension is not in $row_types.
  1914.             $(this).addClass('other').attr('data-type','Other').attr('data-kind','other').find('td.kind').attr('data-value','other').text('Other');
  1915.          }
  1916.          for ( let key in $row_types ) { // Categorize rows by listed supported file types
  1917.             if ( $row_types[key].includes($this_ext) ) {
  1918.                let $display_key = key.charAt(0).toUpperCase() + key.slice(1); // make display name for file type
  1919.                let kind = $display_key === undefined ? 'File' : $display_key;
  1920.                $(this).addClass(key).addClass($this_ext).attr('data-type',$display_key).attr('data-kind',kind.toLowerCase() ).find('td.kind').attr('data-value',kind).text(kind); // add kind and ext classes, data-type, data-kind
  1921.  
  1922.                if ( key === 'audio' || key === 'video' ) { // media classes and prepend checkbox
  1923.                   $(this).addClass('media').find('a').prepend('<input type="checkbox" tabindex="-1" checked="true" />');
  1924.                };
  1925.             }
  1926.          }
  1927.          // For ignored and excluded items
  1928.          for ( let key in $row_settings ) {
  1929.             if ( $row_settings[key].includes($this_ext) ) {
  1930.                $(this).addClass(key);
  1931.             }
  1932.             if ( $row_settings[key].includes($this_ext) && key == 'ignore' ) {
  1933.             }
  1934.          }
  1935.  
  1936.       }); // end classify dir_list items
  1937.    }
  1938.    classifyDirListItems();
  1939.  
  1940.    // ***** END DIR_LIST SETUP ***** //
  1941.  
  1942.    // ***** UI SETUP ***** //
  1943.  
  1944.    // Add body classes
  1945.    function setupUI() {
  1946.       if ( $dir_list.find('.audio').length > 0 ) {
  1947.          $body.add($dir_list).addClass('has_audio has_media');
  1948.       }
  1949.       if ( $dir_list.find('.font').length > 0 ) {
  1950.          $body.addClass('has_fonts');
  1951.       }
  1952.       if ( $dir_list.find('.image').length > 0 ) {
  1953.          $body.addClass('has_images');
  1954.       }
  1955.       if ( $dir_list.find('.video').length > 0 ) {
  1956.          $body.add($dir_list).addClass('has_video has_media');
  1957.       }
  1958.       setQuery('autoload_media',$UI_pref_autoload_media);
  1959.       if ( $UI_pref_autoload_media === true ) {
  1960.          $body.addClass('autoload_media');
  1961.          $autoload_media.addClass('checked');
  1962.       } else {
  1963.          $body.removeClass('autoload_media');
  1964.          $autoload_media.removeClass('checked');
  1965.       }
  1966.       if ( $settings.autoload_index_files === true ) {
  1967.          $body.addClass('autoload_index_files');
  1968.       }
  1969.       if ( $settings.use_custom_icons === true ) {
  1970.          $body.addClass('use_custom_icons')
  1971.       } else {
  1972.          $body.addClass('use_default_icons');
  1973.       }
  1974.       if ( $settings.hide_ignored_files === true ) {
  1975.          $body.addClass('hide_ignored');
  1976.       }
  1977.       if ( navigator.platform.indexOf('Win') > -1 || $location.indexOf('file:') < 0 ) {
  1978.          $inv_checkbox.hide();
  1979.       } else if ( $settings.hide_invisibles === true ) {
  1980.          $inv_checkbox.find('input').prop('checked',true);
  1981.          $body.addClass('hide_invisibles').removeClass('show_invisibles')
  1982.       } else {
  1983.          $inv_checkbox.find('input').prop('checked',false);
  1984.          $body.addClass('show_invisibles').removeClass('hide_invisibles')
  1985.       }
  1986.       setQuery('alternate_background',$UI_pref_background);
  1987.       if ( $UI_pref_background === true ) {
  1988.          $body.addClass('alternate_background');
  1989.          $toggle_alt_bckgrd.addClass('checked');
  1990.       } else {
  1991.          $body.removeClass('alternate_background');
  1992.          $toggle_alt_bckgrd.removeClass('checked');
  1993.       }
  1994.       if ( $UI_pref_details === false ) {
  1995.          $dir_list.addClass('show_details');
  1996.          $dir_list_body.css({'top':$dir_list_head.height() + 1 +'px'});
  1997.          $details_btn.find('span').first().hide().next().show();
  1998.       }
  1999.       if ( $UI_pref_theme === true ) {
  2000.          $body.addClass('dark_theme');
  2001.       } else {
  2002.          $body.addClass('light_theme');
  2003.       }
  2004.       if ( $userAgent.indexOf('Chrome') > 0 ) { $body.addClass('is_chrome'); }
  2005.       if ( $userAgent.indexOf('Firefox') > 0 ) { $body.addClass('is_gecko'); }
  2006.    };
  2007.    setupUI();
  2008.  
  2009.    // Build UI
  2010.    function buildUI() {
  2011.       $dir_list.appendTo($sidebar);
  2012.  
  2013.       var $main_content = $('<table id="main_content"><tbody><tr></tr></tbody></table>');
  2014.       $main_content.find('tr').append( $sidebar_wrapper, $content_pane );
  2015.  
  2016.       $body.empty().prepend($main_content);
  2017.  
  2018.       if ( $body.hasClass('is_converted_list') ) {
  2019.          $('#sort_by_size, #sort_by_date, #size, #date').addClass('disabled');
  2020.       }
  2021.       if ( $body.hasClass('is_converted_table') || $body.hasClass('is_converted_pre') ) {
  2022.          if ( $dir_list.find('td.size').length < 1 ) {
  2023.             $('#sort_by_size,th#size').addClass('disabled');
  2024.          }
  2025.          if ( $dir_list.find('td.date').length < 1 ) {
  2026.             $('#sort_by_date,th#date').addClass('disabled');
  2027.          }
  2028.       }
  2029.    }
  2030.    buildUI();
  2031.  
  2032.    // ***** BASIC UI FUNCTIONS ***** //
  2033.    // Show Menus
  2034.    function showMenus(el) {
  2035.       var $position = $(el).position();
  2036.       $(el).find('> ul').css({'top':$position.top + $(el).innerHeight() + 'px'}).toggle().parent('td').siblings('td').find('.menu').hide();
  2037.    }
  2038.    $parents_dir_menu.add($shortcuts_menu).parent('td').on('click',function(e) {
  2039.       e.stopPropagation();
  2040.       showMenus(this);
  2041.    });
  2042.    // Hide Menus
  2043.    function hideMenus() {
  2044.       $('.menu').hide();
  2045.    }
  2046.    $(document).on('click', hideMenus );
  2047.    // Toggle Invisibles
  2048.    function toggleInvisibles() {
  2049.       $body.toggleClass('hide_invisibles').toggleClass('show_invisibles');
  2050.    }
  2051.     $inv_checkbox.on('click','input', toggleInvisibles );
  2052.     // Toggle Autoload Media
  2053.     function toggleAutoloadMedia(e) {
  2054.         e.preventDefault();
  2055.         $body.toggleClass('autoload_media');
  2056.         toggleQuery('autoload_media');
  2057.         $autoload_media.toggleClass('checked');
  2058.     }
  2059.     $autoload_media.on('click', toggleAutoloadMedia );
  2060.     // Toggle Dark Theme
  2061.     function toggleDarkMode(e) {
  2062.         e.preventDefault();
  2063.         $body.toggleClass('dark_theme').toggleClass('light_theme');
  2064.         toggleQuery('dark_theme');
  2065.     }
  2066.     $toggle_dark_theme.on('click', toggleDarkMode );
  2067.     // Toggle Alternating Row Background
  2068.     function toggleAlternateBackground(e) {
  2069.         e.preventDefault();
  2070.         $body.toggleClass('alternate_background');
  2071.         toggleQuery('alternate_background');
  2072.         $toggle_alt_bckgrd.toggleClass('checked');
  2073.     }
  2074.     $toggle_alt_bckgrd.on('click', toggleAlternateBackground );
  2075.     // Toggle Details
  2076.     function toggleDetails() {
  2077.         $dir_list.toggleClass('show_details');
  2078.         $dir_list_body.css({'top':$dir_list_head.height() + 1 +'px'});
  2079.         $details_btn.find('span').toggle();
  2080.         toggleQuery('hide_details');
  2081.     }
  2082.     $details_btn.on('click', toggleDetails );
  2083.     // Show/Hide Sidebar
  2084.     function toggleSidebar() {
  2085.         $body.toggleClass('has_hidden_sidebar');
  2086.         setContentHeight();
  2087.     }
  2088.     $toggle_sidebar.on('click', function() {
  2089.         toggleSidebar();
  2090.         scrollThis('dir_list','selected',true); // true = instant scroll
  2091.     });
  2092.     // Default settings: remove queries;
  2093.     function defaultSettings() {
  2094.         $location = window.location.href;
  2095.         $location = $location.slice(0,$location.lastIndexOf('?'));
  2096.         window.location.assign($location);
  2097.     }
  2098.     $default_settings.on('click', function() {
  2099.         if (window.confirm( "Are you sure you want to reset all your temporary UI settings to the defaults in your user_settings?" ) ) {
  2100.             defaultSettings();
  2101.         }
  2102.     });
  2103.  
  2104.     //***** UI SETUP *****//
  2105.  
  2106.     // Set Content Height
  2107.     function setContentHeight() {
  2108.         let $window_height = window.innerHeight;
  2109.         let $dir_list_head_height = $dir_list_head.length ? $dir_list_head.height() : 0;
  2110.         let $content_header_height = $content_header.outerHeight();
  2111.         $dir_list.add($dir_list_wrapper).css({'height':$window_height - $sidebar_header.outerHeight() });
  2112.         $dir_list.find($dir_list_body).css({'top': $dir_list_head_height });
  2113.         $content_image.add($prev_btn).add($next_btn).css({'top':$content_header_height });
  2114.         $content_pane.hasClass('has_image') ? $content_image.find('img').css({'max-height':$content_image.innerHeight() - 52 + 'px'}) : null;
  2115.         $content_grid.add($content_pdf).add($content_iframe).add($content_font).css({'height':$window_height - $content_header_height,'top':$content_header_height });
  2116.         $content_scale.css({'top':$content_header_height + 13 });
  2117.         $('#prev_track, #next_track, #close_audio').css({'height':$audio.height() });
  2118.     }
  2119.     window.addEventListener('resize', function(e) {
  2120.         setContentHeight();
  2121.     });
  2122.  
  2123.     // Set Content Title
  2124.     const $title = $content_pane.find('#title');
  2125.  
  2126.    function setContentTitle() {
  2127.       let $title_text = '';
  2128.       if ( $('.playing').hasClass('audio') ) { // set audio player title
  2129.          $content_audio_title.find('td').empty().append( $('.playing').find('td.name a').text() );
  2130.       }
  2131.       if ( $content_pane.hasClass('has_grid') ) { // set main title for other content
  2132.          $title_text = $current_dir_name;
  2133.       } else {
  2134.          $title_text = $title_text + $('.selected:not(.audio)').find('td.name a').text(); // Assemble title
  2135.       }
  2136.       $title.empty().text( $title_text ); // Add file name
  2137.       if ( $('.selected').hasClass('image') && !$content_pane.hasClass('has_grid') ) {
  2138.          setDimensions($('.selected.image'));
  2139.       }
  2140.    }
  2141.    // Get Image Dimensions
  2142.    function getDimensions(link, callback) {
  2143.       var img = new Image();
  2144.       img.src = link;
  2145.       img.onload = function() { callback( this.width, this.height ); };
  2146.    }
  2147.    function setDimensions(row) {
  2148.       getDimensions( thisLink(row), function( width, height ) {
  2149.          $title.append(' <span style="text-transform:lowercase;">(' + width + 'px &times; ' + height + 'px</span>)' );
  2150.       });
  2151.    }
  2152.    // Scroll Selected Items
  2153.    function scrollThis(elID,className,bool) {
  2154.       let $behavior = 'smooth';
  2155.       bool === undefined ? null : $behavior = 'instant';
  2156.       var $block = $userAgent.indexOf('Firefox') > -1 ? $block = 'start' : $block = 'nearest';
  2157.       if ( document.getElementsByClassName(className).length > 0 ) {
  2158.          document.getElementById(elID).getElementsByClassName(className)[0].scrollIntoView({ behavior:$behavior, block:$block, inline:'nearest' });
  2159.       }
  2160.    }
  2161.  
  2162.    // ***** SORTING ***** //
  2163.    var $sort_all = $dir_list_body.find('tr');
  2164.    var $sort_dirs = $dir_list_body.find('tr.dir').not('.app');
  2165.    var $sort_files = $dir_list_body.find('tr').not('.dir').add('.app');
  2166.    var currentIndex, prevIndex;
  2167.    var $default_index = $('#thead').find('#default').index();
  2168.    var $sort_order = 1;
  2169.  
  2170.    var dataName = function(x) {
  2171.       return $(x).find('td').eq(0).data('value').toString();
  2172.    };
  2173.    var dataData = function(x,index) {
  2174.       return $(x).find('td').eq(index).attr('data-value') === undefined ? '' : $(x).find('td').eq(index).attr('data-value').toString();
  2175.    };
  2176.    // Sort comparison functions
  2177.    var sortByName = function(x,y,sortDirection) {
  2178.       return sortDirection === 1 ? dataName(x).localeCompare(dataName(y)) : dataName(y).localeCompare(dataName(x));
  2179.    };
  2180.    var sortByData = function(x,y,index,sortDirection) { // sort by data then by name
  2181.       if ( sortDirection === 1 ) {
  2182.          return dataData(x,index).localeCompare(dataData(y,index), undefined, { numeric:true }) === 0 ? dataName(x).localeCompare(dataName(y)) : dataData(x,index).localeCompare(dataData(y,index), undefined, { numeric:true });
  2183.       } else {
  2184.          return dataData(y,index).localeCompare(dataData(x,index), undefined, { numeric:true }) === 0 ? dataName(y).localeCompare(dataName(x)) : dataData(y,index).localeCompare(dataData(x,index), undefined, { numeric:true });
  2185.       }
  2186.    };
  2187.    // Sort elements: sort by name if index = 0, else sort by data-value.
  2188.    var sortEls = function(els,index,sortDirection) {
  2189.       els.detach().sort(function(a,b) {
  2190.          return index === 0 ? sortByName(a,b,sortDirection) : sortByData(a,b,index,sortDirection);
  2191.       });
  2192.    };
  2193.    // Sort Dir List
  2194.    function sortDirList(index, sortDirection) {
  2195.       $dir_list_row.removeClass('sorted');
  2196.  
  2197.       if ( index == $default_index ) {
  2198.          if ( index == $default_index ) {
  2199.             index = 0;
  2200.          }
  2201.          // sort dirs and files separately
  2202.          sortEls( $sort_dirs, index, sortDirection );
  2203.          sortEls( $sort_files, index, sortDirection );
  2204.          if (sortDirection === 1 ) { // append dirs and files according to sort direction
  2205.             $.each($sort_dirs, function() { $dir_list_body.append(this); });
  2206.             $.each($sort_files, function() { $dir_list_body.append(this); });
  2207.          } else {
  2208.             $.each($sort_files, function() { $dir_list_body.append(this); });
  2209.             $.each($sort_dirs, function() { $dir_list_body.append(this); });
  2210.          }
  2211.       } else if ( $settings.dirs_on_top === false || index == 0 && index !== $default_index ) { // sort all dirs and files, append, remove body class
  2212.          sortEls( $sort_all, index, sortDirection );
  2213.          $.each($sort_all, function() { $dir_list_body.append(this); });
  2214.          $body.removeClass('is_dirs_on_top');
  2215.       } else if ( $settings.dirs_on_top === true || index !== 0 ) { // sort dirs and files separately
  2216.          sortEls( $sort_dirs, index, sortDirection );
  2217.          sortEls( $sort_files, index, sortDirection );
  2218.          if (sortDirection === 1 ) { // append dirs and files according to sort direction
  2219.             $.each($sort_dirs, function() { $dir_list_body.append(this); });
  2220.             $.each($sort_files, function() { $dir_list_body.append(this); });
  2221.          } else {
  2222.             $.each($sort_files, function() { $dir_list_body.append(this); });
  2223.             $.each($sort_dirs, function() { $dir_list_body.append(this); });
  2224.          }
  2225.       }
  2226.       if ( index === $('#thead').find('#kind').index() || index === $('#thead').find('#ext').index() ) {
  2227.          $body.addClass('is_dirs_on_top');
  2228.          addSortStyle( index, sortDirection );
  2229.       }
  2230.    }
  2231.    // Add Sort Styles (for rules)
  2232.    function addSortStyle(index, sortDirection) {
  2233.       var $this_value, $next_value;
  2234.       $dir_list_row.removeClass('sorted');
  2235.  
  2236.       $dir_list_row.filter(':visible').not('.dir').add('.app').each(function() {
  2237.          $this_value = $(this).find('td').eq(index).attr('data-value');
  2238.          $next_value = $(this).next('tr:visible').find('td').eq(index).attr('data-value');
  2239.  
  2240.          if ( $this_value !== $next_value ) {
  2241.             $(this).addClass('sorted');
  2242.          }
  2243.          if ( $(this).attr('data-type') !== $(this).next('tr:visible').attr('data-type') ) {
  2244.             $(this).addClass('sorted');
  2245.          }
  2246.       });
  2247.       // for last dir
  2248.       if ( sortDirection == 1 ) {
  2249.          $dir_list_row.filter('.dir').last().addClass('sorted');
  2250.       }
  2251.    }
  2252.    // Sort on click
  2253.    function clickSort(x,y) { // x = clicked sort link, y = bool (false ? don't set query_prefs)
  2254.       currentIndex = x.index();
  2255.       // Only reverse sort order after clicking a sort column once.
  2256.       if ( currentIndex != prevIndex ) {
  2257.          prevIndex = currentIndex;
  2258.          $sort_order = 1;
  2259.       }
  2260.  
  2261.       sortDirList(currentIndex, $sort_order);
  2262.       $sort_order = -1 * $sort_order;
  2263.  
  2264.       x.toggleClass('up').addClass('checked').siblings().removeClass('checked up');
  2265.       $('#sort_menu').find('li').eq(currentIndex).addClass('checked').siblings().removeClass('checked');
  2266.  
  2267.       setContentHeight();
  2268.       // set sorting query pref
  2269.       if ( y === true ) {
  2270.          $query_prefs = getQueryPrefs();
  2271.          $query_prefs.set('sort',$('#sort_menu').find('li').eq(currentIndex).text().toLowerCase() );
  2272.          updateQuery();
  2273.       }
  2274.    }
  2275.    // Sort on clicking dir_list sort header
  2276.    $('#thead').on('click','th:not(.disabled)',function(e) {
  2277.       e.preventDefault();
  2278.       e.stopPropagation();
  2279.       var i = $(this).index();
  2280.       clickSort( $(this),true)
  2281.    });
  2282.    // Sort Menu: click the list header that contains the selected menu text.
  2283.    $('#sort_menu').on('click','li:not(.disabled)',function(e) {
  2284.       e.preventDefault();
  2285.       e.stopPropagation();
  2286.       $(this).addClass('checked').siblings().removeClass('checked');
  2287.       $('#theader th[id*="'+ thisText($(this)).slice(0,2) +'" i]').click();
  2288.    });
  2289.    // Initialize sort
  2290.    function initialSort() {
  2291.       switch ( $UI_pref_sort ) {
  2292.          case 'name':
  2293.             i = 0;
  2294.             break;
  2295.          case 'size':
  2296.             i = 1;
  2297.             break;
  2298.          case 'date':
  2299.             i = 2;
  2300.             break;
  2301.          case 'kind':
  2302.             i = 3;
  2303.             break;
  2304.          case 'extension':
  2305.             i = 4;
  2306.             break;
  2307.          default:
  2308.             i = 5;
  2309.       }
  2310.       $('#theader').find('th').eq(i).click();
  2311.    }
  2312.    initialSort();
  2313.  
  2314.    // ***** END SORTING ***** //
  2315.    // ***** END BASIC UI FUNCTIONS ***** //
  2316.  
  2317.    // ***** CONTENT PANE ***** //
  2318.  
  2319.    var $selected = $dir_list.find('.selected');
  2320.    var $playing = $dir_list.find('.playing');
  2321.    var $media = $dir_list.find('td').filter('.media:not(.unchecked):not(.ignored)');
  2322.  
  2323.    // SELECT ROW on click and set classes for $content_pane
  2324.    function selectThis(row) {
  2325.       let $grid_selected = $content_grid.find('div.font_grid_item a[href="'+ thisLink(row) +'"]').closest('div').add('div.image_grid_item a[href="'+ thisLink(row) +'"]').closest('div').addBack();
  2326.       if ( $content_pane.hasClass('has_grid') ) { // Select corresponding grid item
  2327.          row.addClass('selected').siblings().removeClass('selected hovered');
  2328.          $grid_selected.addClass('selected').siblings().removeClass('selected');
  2329.       } else if ( row.hasClass('audio') ) { // if row is audio, remove playing and selected classes
  2330.          row.addClass('selected playing').siblings('.media').removeClass('selected playing hovered');
  2331.       } else { // remove classes from rows, but leave .audio with playing
  2332.          row.addClass('selected').siblings().removeClass('selected hovered');
  2333.       }
  2334.    }
  2335.  
  2336.    //***** SHOW CONTENT *****//
  2337.  
  2338.    // Show Font
  2339.    var $font_family_arr = [];
  2340.    function showFont(row) {
  2341.       var $font_family = thisText(row);
  2342.       if ( $font_family_arr.indexOf($font_family) == -1 ) { // if font family is not in array, add it
  2343.          $font_family_arr.push($font_family);
  2344.          $font_preview_styles.append('@font-face { font-family: "'+ $font_family +'"; src: url("'+ thisLink(row) +'"); }'); // only add style if it doesn't exist
  2345.       }
  2346.       $content_font.css({ 'font-family':'"'+ $font_family +'"' });
  2347.    }
  2348.    // Show Grid
  2349.    function showGrid() {
  2350.       $content_pane.removeClass('has_hidden_grid').addClass('has_grid');
  2351.       setContentSource($content_grid);
  2352.       setContentTitle();
  2353.       setContentHeight();
  2354.       selectThis($('.selected'));
  2355.    }
  2356.    // Hide Grid
  2357.    function hideGrid() {
  2358.       if ( $content_pane.hasClass('has_grid') ) {
  2359.          $content_pane.removeClass('has_grid').addClass('has_hidden_grid');
  2360.       }
  2361.    }
  2362.    // Set Content Source
  2363.    function setContentSource(el,link) { // add source attribute to content containers, excluding $content_font
  2364.       let $el_ID = $(el).attr('id');
  2365.       switch ($el_ID) {
  2366.          case 'content_audio':
  2367.             $(el).find('audio').attr('src',link);
  2368.             break;
  2369.          case 'content_image':
  2370.             $(el).find('img').attr('src',link);
  2371.             break;
  2372.          case 'content_font':
  2373.             break;
  2374.          default: // content_pdf, content_video, or content_iframe
  2375.             $(el).removeAttr('srcdoc').attr('src',link);
  2376.       }
  2377.    }
  2378.     // SHOW CONTENT
  2379.     function showContent(row) { // show any content excluding grids
  2380.        if ( row.length > 0 ) { // needed for left/right arrow nav when there are no valid items (i.e. images or fonts)
  2381.           let kind = thisRow(row).hasClass('ignore') ? 'ignored' : thisRow(row).attr('data-kind'); // get file kind
  2382.           !['audio','font','image','pdf','video','ignored'].includes(kind) || kind === 'dir' ? kind = 'iframe' : null; // load dirs and any other kind of content except audio, font, image, pdf, or video into iframe
  2383.           let link = kind === 'pdf' ? thisLink(row) + '?#view=fitB&scrollbar=1&toolbar=1&navpanes=1' : thisLink(row); // add pdf query str to link
  2384.           $content_pane.hasClass('has_grid') ? hideGrid() : null;
  2385.           closeAllContent(row); // except audio and grids
  2386.           if ( kind === 'ignored' ) {
  2387.              $content_pane.addClass('has_ignored');
  2388.          } else {
  2389.              setContentSource( '#content_'+ kind, link ); // set content container source
  2390.              kind === 'font' ? showFont(row) : null; // set $content_font css
  2391.              kind === 'image' ? $content_grid.find('a[href="' + thisLink(row) + '"]').parent('div').addClass('selected').siblings().removeClass('selected') : null; // set image source
  2392.              kind === 'video' ? closeAudio() : null; // if video, close audio
  2393.          }
  2394.            thisRow(row).attr('data-kind') === 'dir' ? $content_pane.addClass( 'has_dir' ) : $content_pane.addClass( 'has_'+ kind ); // add content pane class
  2395.            setContentHeight();
  2396.            setContentTitle();
  2397.            kind === 'audio' ? autoLoadCoverArt() : null; // autoload cover art on selecting audio
  2398.        }
  2399.     }
  2400.  
  2401.     //***** CLOSE CONTENT (Close button or Cmd/Ctrl + W) *****//
  2402.     // Close Audio
  2403.    function closeAudio() {
  2404.       $('.audio.playing').removeClass('playing');
  2405.       $content_pane.removeClass('has_audio').find('#content_audio_title td').empty();
  2406.       $audio.trigger('pause').attr('src','');
  2407.       setContentHeight();
  2408.    }
  2409.    // Close audio button click
  2410.    $close_audio.on('click',function(e) {
  2411.       e.stopPropagation();
  2412.       closeAudio();
  2413.    });
  2414.    // Close Grid
  2415.    function closeGrid() {
  2416.       $content_pane.removeClass('has_grid');
  2417.       $content_grid.empty().removeClass().attr('style','').find('.image_grid_item, img').attr('style','');
  2418.    }
  2419.    // Close content excluding audio and grids
  2420.    function closeAllContent(row) {
  2421.    if ( row !== undefined && row.hasClass('audio') ) {
  2422.    return;
  2423.    } else {
  2424.       let $content_classes = $content_pane.attr('class') !== undefined ? $content_pane.attr('class').split(' ') : []; // get array of content pane classes
  2425.       for ( let $content_class of $content_classes ) { // for each content_pane class, define the associated content container, remove class and source
  2426.          let $container_name = '#content_'+ $content_class.substring(4);
  2427.          let $content_el = $( $container_name ); // define content container from content pane class name
  2428.          if ( ['has_font','has_image','has_pdf','has_video','has_iframe','has_dir','has_ignored'].includes($content_class) ) { // if not grid or audio, remove class
  2429.             $content_pane.removeClass($content_class);
  2430.             if ( $content_class === 'has_font' ) { // remove font style
  2431.                $content_font.css({'font-family':''})
  2432.                $content_font.css({'font-size':'1em'}); // reset font: comment out to retain font scale after loading other content
  2433.             } else if ( $content_class === 'has_image' ) { // remove image src
  2434.                $content_image.find('img').attr('src','');
  2435.                $content_image.attr('data-image-scale-factor',1).find('img').removeClass('zoom_img').attr('style',''); // reset image: comment out to retain image scale after loading other content
  2436.             } else if ( $content_class === 'has_video' ) { // remove video src
  2437.                $content_video.trigger('pause').attr('src','');
  2438.             } else {
  2439.                $content_el.attr('src',''); // remove src for anything else
  2440.                $content_iframe.attr('src',''); // remove src for anything else
  2441.             }
  2442.          }
  2443.       }
  2444.       $content_title.removeClass().find('#title').empty();
  2445.       setContentHeight();
  2446.       }
  2447.    }
  2448.    // CLOSE CONTENT
  2449.    function closeContent() {
  2450.       if ( $content_pane.hasClass('has_grid') ) {
  2451.          closeGrid(); // if has_grid, close grid
  2452.       } else if ( $content_pane.hasClass('has_hidden_grid') ) {
  2453.          showGrid(); // if has_hidden_grid, close content, show grid
  2454.       } else if ( ['has_font','has_image','has_pdf','has_video','has_iframe','has_dir','has_ignored'].some( c => $content_pane.attr('class').split(' ').indexOf( c ) >= 0 ) ) {
  2455.          closeAllContent();  // close content if content pane has one of these classes, except audio and grids
  2456.       } else { // close audio last of all
  2457.          closeAudio();
  2458.       }
  2459.       setContentHeight();
  2460.    }
  2461.    $('#close_btn').on('click', function(e) {
  2462.       e.preventDefault();
  2463.       e.stopPropagation();
  2464.       closeContent();
  2465.    });
  2466.  
  2467.    //***** RESET CONTENT (Reset button or Cmd/Ctrl + R) *****//
  2468.    function resetContent() {
  2469.       if ( $content_pane.attr('class') === '' ) { window.location = window.location.href } // reload page
  2470.       if ( $content_pane.hasClass('has_audio') ) { $audio.prop('currentTime', 0).trigger('pause'); }
  2471.       if ( $content_pane.hasClass('has_grid') ) { $grid_btn.click(); }
  2472.       if ( $content_pane.hasClass('has_font') ) { $content_font.css({'font-size':'1em'});}
  2473.       if ( $content_pane.hasClass('has_image') ) { $content_image.attr('data-image-scale-factor',1).find('img').removeClass('zoom_img').attr('style',''); }
  2474.       if ( $content_pane.hasClass('has_video') ) { $content_video.prop('currentTime',0).trigger('pause'); }
  2475.       if ( $content_pane.hasClass('has_iframe') || $content_pane.hasClass('has_dir') ) { $('.selected').find('a').click(); }
  2476.       setContentHeight();
  2477.    }
  2478.    $('#reload_btn').on('click', function(e) {
  2479.       e.preventDefault();
  2480.       e.stopPropagation();
  2481.       resetContent();
  2482.    });
  2483.  
  2484.    //***** SELECT ROWS *****//
  2485.    var prevRow = function(className) {
  2486.       return ( !$('.selected').length || !$('.selected').prevAll(':visible:not(.unchecked)').filter(className).length ) ? $('#tbody').find('tr').filter(className).last() : $('.selected').prevAll(':visible:not(.unchecked)').filter(className).first();
  2487.    };
  2488.    var nextRow = function(className) { // if nothing selected, or if no next row with classname, return first row with classname, else return next row with classname
  2489.       return ( !$('.selected').length || !$('.selected').nextAll(':visible:not(.unchecked)').filter(className).length ) ? $('#tbody').find('tr').filter(className).first() : $('.selected').nextAll(':visible:not(.unchecked)').filter(className).first();
  2490.    };
  2491.  
  2492.    //***** SELECT ROWS by typed string *****//
  2493.    var str = '', timer, $next_ltr;
  2494.    function timeoutID() {
  2495.       timer = window.setTimeout( function() {
  2496.          str = '';
  2497.       }, 1500 );
  2498.    }
  2499.    function alphaNav(e) { // Select Dir_List row by typed string; Todo: select next row by nearest letter
  2500.       if (typeof timer == 'number' ) {
  2501.          window.clearTimeout( timer );
  2502.          timer = 0; // id
  2503.       }
  2504.       timeoutID();
  2505.       str += e.key
  2506.       str = str.toLowerCase();
  2507.       if ( $('#dir_list').find('td.name[data-value^="'+ str +'"]').length ) {
  2508.           $('#dir_list').find('td.name[data-value^="'+ str +'"]').first().find('a').click();
  2509.           console.log(char[str.index]);
  2510.       } else {
  2511.          // $('#dir_list').find('td.name[data-value^="'+ str +'"]').first().find('a').click();
  2512.           null; // replace this with next closest match function
  2513.       }
  2514.    }
  2515.  
  2516.    // Click Prev/Next Arrows
  2517.    function prevNextBtn(el) {
  2518.       let f = $.Event("keydown");
  2519.       if ( el.attr('id') === 'prev_btn' ) {
  2520.          f.key = 'ArrowLeft';
  2521.       }
  2522.       if ( el.attr('id') === 'next_btn' ) {
  2523.          f.key = 'ArrowRight';
  2524.       }
  2525.       $body.trigger(f);
  2526.    }
  2527.    $content_pane.on( 'click','#prev_btn, #next_btn', function(e) {
  2528.       e.stopPropagation();
  2529.       e.preventDefault();
  2530.       prevNextBtn( $(this) );
  2531.    });
  2532. 	// Click grid button
  2533.    $sidebar_header.on('click', '#grid_btn, #show_font_grid, #show_image_grid', function(e) {
  2534.       makeGrids(e,$(this));
  2535. 		showGrid();
  2536.    });
  2537.  
  2538.     // Click prev/next track buttons
  2539.     $('.prev_next_track_btn').on('click',function() {
  2540.         $(this).attr('id') === 'prev_track' ? playPrevNextTrack('ArrowLeft') : playPrevNextTrack('ArrowRight') ;
  2541.     });
  2542.  
  2543.    // SELECT ROWS prev/next media track with arrow keys
  2544.    function playPrevNextTrack(key) {
  2545.       let $key = key.key;
  2546.       $shuffle.find('input').prop('checked') === true ? shuffle() : null;
  2547.       $playing = $('.playing');
  2548.       let kind = $playing.attr('data-kind');
  2549.       if ( $body.hasClass('has_media') ) {
  2550.          if ( $playing.length === 0 ) { // if no media selected, select first shuffle or first media file
  2551.             if ( $shuffle.find('input').prop('checked') === true ) {
  2552.                clickRow( $('.audio').eq($count) );
  2553.             } else {
  2554.                switch ( $key ) {
  2555.                   case 'ArrowLeft': clickRow( $media.last() ); break;
  2556.                   case 'ArrowRight': clickRow( $media.first() ); break;
  2557.                }
  2558.             }
  2559.          }
  2560.          if ( $playing.length == 1 ) {
  2561.             if ( $shuffle.find('input').prop('checked') === true ) {
  2562.                selectThis( $('.audio').eq($count) );
  2563.                showContent( $('.audio').eq($count) );
  2564.                $shuffleList.length !== 0 ? playMedia('play') : null;
  2565.             } else {
  2566.                switch ( key ) {
  2567.                   case 'ArrowLeft':
  2568.                      if ( $playing.prevAll('.media[data-kind="'+ kind +'"]:not(.unchecked)').length === 0 ) {
  2569.                         clickRow( $dir_list_row.filter('.media[data-kind="'+ kind +'"]:not(.unchecked)').last() );
  2570.                      } else {
  2571.                         clickRow( $playing.prevAll('.media[data-kind="'+ kind +'"]:not(.unchecked)').first() );
  2572.                      }
  2573.                      break;
  2574.                   case 'ArrowRight':
  2575.                      if ( $playing.nextAll('.media[data-kind="'+ kind +'"]:not(.unchecked)').length === 0 && $loop.find('input').is(':checked') === false ) { // loop playback
  2576.                         selectThis( $dir_list_row.filter('.media[data-kind="'+ kind +'"]:not(.unchecked)').first() );
  2577.                         autoLoadCoverArt();
  2578.                         return true;
  2579.                      } else if ( $playing.nextAll('.media[data-kind="'+ kind +'"]:not(.unchecked)').length === 0 ) { // else click first media file
  2580.                         clickRow( $dir_list_row.filter('.media[data-kind="'+ kind +'"]:not(.unchecked)').first() );
  2581.                      } else {
  2582.                         clickRow( $playing.nextAll('.media[data-kind="'+ kind +'"]:not(.unchecked)').first() ); // else click next media file
  2583.                      }
  2584.                      break;
  2585.                }
  2586.             }
  2587.             playMedia('play');
  2588.          }
  2589.       }
  2590.    }
  2591.  
  2592.    // SELECT ROWS by arrow keys
  2593.    function leftRightArrowNavigation(key,kind) {
  2594.       if ( $body.hasClass('has_media') && $('.selected').hasClass('audio') && !$('.selected').hasClass('playing') ) { // play selected track (e.g., after up/down arrow)
  2595.          clickRow( $('.audio.selected') );
  2596.          playMedia('play');
  2597.       } else if ( $body.hasClass('has_media') && $('.selected').hasClass('audio')) { // play next audio track
  2598.          playPrevNextTrack(key);
  2599.          playMedia('play');
  2600.       } else { // select prev/next row of same sort kind
  2601.          if ( key === 'ArrowLeft' ) { clickRow( prevRow('[data-kind="'+ kind +'"]:visible') ); }
  2602.          if ( key === 'ArrowRight' ) { clickRow( nextRow('[data-kind="'+ kind +'"]:visible') ); }
  2603.          if ( $('.selected').hasClass('video') ) { playMedia('play') };
  2604.       }
  2605.    }
  2606.    function arrowNavigation(e) {
  2607.       let $key = e.key;
  2608.       let $selected = $('.selected');
  2609.       let kind = $('.selected').attr('data-kind') === undefined ? $dir_list.find('tbody tr:visible').first().attr('data-kind') : $('.selected').attr('data-kind');
  2610.       if ( $content_pane.hasClass('has_grid') ) { // Grid navigation: L/R arrow selects images and fonts only; U/D arrow clicks row.
  2611.          switch ( $key ) {
  2612.             case 'ArrowUp': clickRow( prevRow('.dir:visible,.file:visible') ); break;
  2613.             case 'ArrowDown': clickRow( nextRow('.dir:visible,.file:visible') ); break;
  2614.             case 'ArrowLeft':
  2615.                if ( $content_grid.hasClass('has_font_grid') ) {
  2616.                   selectThis( prevRow('.font:visible') );
  2617.                } else if ( $content_grid.hasClass('has_image_grid') ) {
  2618.                   selectThis( prevRow('.image:not(.ignore):visible') );
  2619.                } else {
  2620.                   selectThis( prevRow('.image:not(.ignore):visible,.font:visible') );
  2621.                }
  2622.                break;
  2623.             case 'ArrowRight':
  2624.                if ( $content_grid.hasClass('has_font_grid') ) {
  2625.                   selectThis( nextRow('.font:visible') );
  2626.                } else if ( $content_grid.hasClass('has_image_grid') ) {
  2627.                   selectThis( nextRow('.image:not(.ignore):visible') );
  2628.                } else {
  2629.                   selectThis( nextRow('.image:not(.ignore):visible,.font:visible') );
  2630.                }
  2631.                break;
  2632.          }
  2633.       } else {
  2634.          switch ( $key ) {
  2635.             case 'ArrowUp': // if audio player not visible, show and load audio when selected; else if audio player visible, select but don't load prev/next audio file.
  2636.                if ( prevRow('.dir:visible,.file:visible').hasClass('audio') ) {
  2637.                   closeAllContent(); // except audio and grids
  2638.                   if ( !$content_pane.hasClass('has_audio') ) {
  2639.                      clickRow( prevRow('.audio:visible') );
  2640.                      $('.selected:not(.audio)').removeClass('selected');
  2641.                   } else {
  2642.                      prevRow('.audio:visible').addClass('selected').siblings().removeClass('selected hovered');
  2643.                   autoLoadCoverArt();
  2644.                   }
  2645.                } else {
  2646.                   clickRow( prevRow('.dir:visible,.file:visible') );
  2647.                }
  2648.                break;
  2649.             case 'ArrowDown':
  2650.                if ( nextRow('.dir:visible,.file:visible').hasClass('audio') ) { // if next row is audio...
  2651.                   closeAllContent(); // except audio and grids
  2652.                   if ( !$content_pane.hasClass('has_audio') ) { // if audio player is closed, click next row to load and show file
  2653.                      clickRow( nextRow('.audio:visible') );
  2654.                      $('.selected:not(.audio)').removeClass('selected');
  2655.                   } else { // else simply select the next audio file without closing currently playing audio
  2656.                      nextRow('.audio:visible').addClass('selected').siblings().removeClass('selected hovered');
  2657.                      autoLoadCoverArt();
  2658.                   }
  2659.                } else {
  2660.                   clickRow( nextRow('.dir:visible,.file:visible') );
  2661.                }
  2662.                break;
  2663.             case 'ArrowLeft':
  2664.                leftRightArrowNavigation('ArrowLeft',kind);
  2665.                break;
  2666.             case 'ArrowRight':
  2667.                leftRightArrowNavigation('ArrowRight',kind);
  2668.                break;
  2669.          }
  2670.       }
  2671.       scrollThis('dir_list','selected');
  2672.       $content_pane.hasClass('has_grid') && $content_grid.find('.selected').length > 0 ? scrollThis('content_grid','selected') : null;
  2673.    }
  2674.  
  2675.    //***** CLICK & HOVER EVENTS for Content *****//
  2676.  
  2677.    // HOVER Grid Item
  2678.    $content_grid.on('mouseenter','> div:not(.selected)',function() {
  2679.       thisRow($dir_list.find('a[href*="'+ thisLink(this) +'"]')).addClass('hovered');
  2680.    }).on('mouseleave','> div:not(.selected)',function() {
  2681.       thisRow($dir_list.find('a[href*="'+ thisLink(this) +'"]')).removeClass('hovered');
  2682.    });
  2683.    // HOVER Dir_list_row and highlight corresponding grid item
  2684.    $dir_list_row.hover(function() {
  2685.       if ( $content_grid.is(':visible') ) {
  2686.          $content_grid.find('[href*="'+ thisLink(this) +'"]').closest('div').addClass('hovered');
  2687.       }
  2688.    }, function() {
  2689.       if ( $content_grid.is(':visible') ) {
  2690.          $content_grid.find('.hovered').removeClass('hovered');
  2691.       }
  2692.    });
  2693.    // CLICK grid item
  2694.    function gridItemClick(e,el) {
  2695.       e.preventDefault();
  2696.       clickThis($dir_list.find('a[href*="'+ thisLink(el) +'"]') );
  2697.    }
  2698.    $content_grid.on('click','div', function(e) {
  2699.       gridItemClick(e,$(this));
  2700.    });
  2701.  
  2702.    // CLICK Row
  2703.    function clickRow(row) { // Pause/Play audio if .selected = audio, else click row normally
  2704.       if ( thisRow(row).hasClass('playing') && !thisRow(row).hasClass('video') ) {
  2705.          playPauseMedia();
  2706.       } else {
  2707.          selectThis( thisRow(row) );
  2708.          showContent( thisRow(row) );
  2709.       }
  2710.       hideMenus();
  2711.    }
  2712.    // CLICK Row
  2713.    $dir_list_row.on('click','a', function(e) {
  2714.       e.preventDefault();
  2715.       e.stopPropagation();
  2716.       clickRow( $(this) );
  2717.    });
  2718.    // Click element anchor
  2719.    function clickThis(el) {
  2720.       el.find('a').length > 0 ? el.find('a').click() : el.click();
  2721.    }
  2722.    // DOUBLE-CLICK Row to open directory
  2723.    function doubleClickRow(row) {
  2724.       if ( row.hasClass('dir') ) {
  2725.          $query_prefs = getQueryPrefs();
  2726.          var $history = $query_prefs.get('history') === null ? '' : '+'+ $query_prefs.get('history');
  2727.          var $current_index = row.prevAll('.dir:visible:not(.ignore)').length;
  2728.          $history = $current_index + $history; // update history
  2729.          $query_prefs.delete('selected');
  2730.          $query_prefs.set('history',$history);
  2731.          updateQuery();
  2732.          window.location = row.find('a').attr('href') +'?'+ $query_prefs;
  2733.       }
  2734.    }
  2735.    $dir_list_row.filter('.dir').on('dblclick', function(e) {
  2736.       e.preventDefault();
  2737.       e.stopPropagation();
  2738.       doubleClickRow( $(this) );
  2739.    });
  2740.  
  2741.    //***** AUTOLOAD CONTENT: index files or files from the file shortcut list *****//
  2742.    function autoSelectFile() {
  2743.       if ( $UI_pref_selected !== '' ) {
  2744.          selectThis( $dir_list.find('tbody tr.dir:not(.invisible)').eq($UI_pref_selected) );
  2745.          showContent( $dir_list.find('tbody tr.dir:not(.invisible)').eq($UI_pref_selected) );
  2746.       } else if ( $UI_pref_file !== '' ) {
  2747.          clickThis( $dir_list_row.find('a:contains('+ $UI_pref_file +')') );
  2748.       } else if ( $body.hasClass('autoload_index_files') && $dir_list.find( 'a[href*="/index."]').length > 0 ) { // else load index file
  2749.          clickThis( $dir_list.find('a[href*="/index."]') );
  2750.       } else if ( $body.hasClass('autoload_media') && $body.hasClass('has_media') ) { // else if audio and images, load cover art
  2751.          clickThis( $dir_list.find('.audio,.video').first() );
  2752.       } else { // else select first non-media item
  2753.         // clickThis( $dir_list.find('tbody tr:not(.media):not(.invisible)').first() );
  2754.       }
  2755.       scrollThis('dir_list','selected');
  2756.       scrollThis('dir_list','playing');
  2757.    }
  2758.    autoSelectFile();
  2759.  
  2760.    // Autoload Cover Art
  2761.    function autoLoadCoverArt() { // autoload cover art for audio if dir contains audio and images, and audio is loaded and non-image content is not loaded
  2762.       if ( !$body.hasClass('autoload_media') ) {
  2763.           return;
  2764.       } else if ( $body.hasClass('has_audio') && $body.hasClass('has_images') && $content_pane.hasClass('has_audio') && $content_image.siblings().attr('src') == undefined ) {
  2765.          var $cover;
  2766.          var $this_ext;
  2767.          const $image_titles = ['cover','front'];
  2768.          for ( let i = 0; i < $image_titles.length; i++ ) { // select first image whose title begins with $image_titles[i] or which contains $image_titles[i].
  2769.             $cover = $dir_list.find('.image').find('td.name[data-value^="'+ $image_titles[i] +'"]:not([data-value*="back"])').parent('tr').first() || $dir_list.find('.image').find('td.name[data-value*="'+ $image_titles[i] +'"]:not([data-value*="back"])').parent('tr').first();
  2770.             if ( $cover.length === 1 ) {
  2771.                showContent($cover);
  2772.                $title.empty().text( $cover.find('a').text() );
  2773.                setDimensions($cover);
  2774.                break;
  2775.             } else {
  2776.                showContent( $dir_list.find('.image').first() ); // otherwise show the first image
  2777.                $title.empty().append($dir_list.find('.image').first().find('a').text() );
  2778.                setDimensions($dir_list.find('.image').first());
  2779.                break;
  2780.             }
  2781.          }
  2782.       }
  2783.    }
  2784.    // File shortcuts menu: autoload directory, then auto-select file
  2785.    function showFileShortcut(item) {
  2786.       $this_link = thisLink(item);
  2787.       window.location = $this_link.slice( 0, $this_link.lastIndexOf('/') );
  2788.    }
  2789.  
  2790.    //***** KEYBOARD EVENTS *****//
  2791.    $body.on('keydown',$dir_list,function(e) {
  2792.       setContentHeight();
  2793.       $(':focus').blur(); // Need this to able to select grid items after clicking close button (or other buttons).
  2794.       let $dir_list_row = $dir_list.find('tbody tr:not(.unchecked)').filter(':visible');
  2795.       let $selected = $dir_list.find('tbody tr.selected');
  2796.       let $selected_href = thisLink($selected);
  2797.       let $playing = $dir_list_row.filter('.playing');
  2798.       var $time;
  2799.  
  2800.       switch ( e.key ) {
  2801.  
  2802.          case 'ArrowUp':
  2803.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) ) { // Cmd/Ctrl + up arrow = go to parent directory
  2804.                 if ( $('#parents_dir_menu + ul a').length < 1 ) {
  2805.                     return;
  2806.                 } else {
  2807.                     $('#parent_dir_menu a').trigger('click');
  2808.                 }
  2809.                break;
  2810.             }
  2811.             if ( $('*[contentEditable="true"]').is(':focus') ) { // Allow arrow navigation within content_editable elements
  2812.                return;
  2813.             }
  2814.             e.preventDefault();
  2815.             arrowNavigation(e);
  2816.             break;
  2817.  
  2818.          case 'ArrowDown':
  2819.             if ( (e.ctrl || e.metaKey) && $selected.hasClass('app') && $settings.apps_as_dirs === false ) { // Ignore Cmd/Ctrl + arrow or if focused element is content editable or open dir
  2820.                return;
  2821.             } else if ( $('*[contentEditable="true"]' ).is(':focus') ) {
  2822.                return;
  2823.             } else if ( (e.ctrl || e.metaKey) && $selected.hasClass('dir') ) {
  2824.                $selected.find('a').trigger('dblclick');
  2825.                break;
  2826.             }
  2827.             e.preventDefault();
  2828.             arrowNavigation(e);
  2829.             break;
  2830.  
  2831.          case 'ArrowLeft':
  2832.             if ( (e.ctrl || e.metaKey) || (e.ctrl && e.metaKey) ) {
  2833.                return;
  2834.             } else if ( $('*[contentEditable="true"]').is(':focus') ) { // Ignore Cmd/Ctrl + arrow or if focused element is content editable
  2835.                return;
  2836.             }
  2837.             if ( !e.metaKey && (e.altKey && e.shiftKey) || e.altKey ) { // Skip media -30s/-10s
  2838.                mediaSkip(e);
  2839.                return;
  2840.             } else {
  2841.                arrowNavigation(e);
  2842.             }
  2843.             break;
  2844.  
  2845.          case 'ArrowRight':
  2846.             if ( e.metaKey && !e.altKey && !e.shiftKey && $selected.hasClass('dir') ) { // Open dir with Cmd/Ctrl + Right Arrow
  2847.                $selected.find('a').trigger('dblclick');
  2848.                return;
  2849.             }
  2850.             if ( (e.ctrl || e.metaKey) || (e.ctrl && e.metaKey) ) { // Ignore Cmd/Ctrl + arrow or if focused element is content editable
  2851.                return;
  2852.             } else if ( $('*[contentEditable="true"]').is(':focus') || $selected.hasClass('dir ignore') ) {
  2853.                return;
  2854.             }
  2855.             if ( !e.metaKey && (e.altKey && e.shiftKey) || e.altKey ) { // Skip audio 30s/10s: Opt-Shift-Arrow/Opt-Arrow
  2856.                mediaSkip(e);
  2857.                return;
  2858.             } else {
  2859.                arrowNavigation(e);
  2860.             }
  2861.             break;
  2862.  
  2863.          case ' ': // space
  2864.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2865.                alphaNav(e);
  2866.             }
  2867.             if ( $content_pane.hasClass('has_audio') || $content_pane.hasClass('has_video') ) { // Play/pause media (space bar)
  2868.                e.preventDefault();
  2869.                playPauseMedia();
  2870.             }
  2871.             break;
  2872.  
  2873.          case 'Enter': // Open directories (or ignore)
  2874.             if ( $selected.hasClass('app') && $settings.apps_as_dirs === false ) {
  2875.                break;
  2876.             } else {
  2877.                if ( $selected.hasClass('dir') ) {
  2878.                   $selected.find('a').trigger('dblclick');
  2879.                } else if ( $content_pane.hasClass('has_grid') ) {
  2880.                   $body.find('#dir_list').find('.selected a').click();
  2881.                } else {
  2882.                   clickThis(thisRow($selected));
  2883.                   if ( $selected.hasClass('media') && !$content_pane.hasClass('has_grid') ) { // Use return to play/pause media
  2884.                      let e = new Event('keydown');
  2885.                      e.key = ' ';
  2886.                   }
  2887.                }
  2888.             }
  2889.             break;
  2890.  
  2891.             // Alphabetical navigation
  2892.          case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z':
  2893.          case 'a': case 'b': case 'c': case '': case 'e': case 'f': case '': case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': case '': case 'p': case 'q': case '': case 's': case 't': case 'u': case 'v': case '': case 'x': case 'y': case 'z':
  2894.          case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case '-': case '`': case '~': case '!': case '@': case '#': case '$': case '%': case '^': case '&': case '*': case '(': case ')': case '=': case '+': case '[': case ']': case '{': case '}': case '\\': case '|': case '/': case '?': case '–': case '—': case '\'': case '\"': case '“': case '”': case '‘': case '’': case '…': case 'π':
  2895.             //            case 'α': case 'β': case 'γ': case 'δ': case 'ε': case 'ζ': case 'η': case 'θ': case 'ι': case 'κ': case 'λ': case 'μ': case 'ν': case 'ξ': case 'ο': case 'π': case 'ρ': case 'ς': case 'σ': case 'τ': case 'υ': case 'φ': case 'χ': case 'ψ': case 'ω': case 'ϑ': case 'ϒ': case 'ϖ':
  2896.             //            case 'Α': case 'Β': case 'Γ': case 'Δ': case 'Ε': case 'Ζ': case 'Η': case 'Θ': case 'Ι': case 'Κ': case 'Λ': case 'Μ': case 'Ν': case 'Ξ': case 'Ο': case 'Π': case 'Ρ': case 'Σ': case 'Σ': case 'Τ': case 'Υ': case 'Φ': case 'Χ': case 'Ψ': case 'Ω': case 'Θ': case 'ϒ': case 'Π':
  2897.          case '∫': case '∂': case 'ƒ': case '©': case '˙': case '∆': case '˚': case 'µ': case 'π': case '®': case 'ß': case '†': case '√': case '∑': case '≈': case '¥': case 'Ω': case '¡': case '™': case '£': case '¢': case '∞': case '§': case '¶': case '•': case 'ª': case 'º': case '≠':
  2898.          case '⁄': case '€': case '‹': case '›': case 'fl': case '‡': case '°': case '·': case '‚': case '±': case '¯': case '˘': case '¿': case '`':
  2899.          case 'ı': case '': case '´': case '': case '˝': case 'ˆ': case '': case '˜': case '‰': case 'ˇ': case '¨': case '◊': case '„': case '˛': case '¸':
  2900.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2901.                alphaNav(e);
  2902.             }
  2903.             break;
  2904.  
  2905.          case 'd': // Cmd/Ctrl + D: Toggle Details
  2906.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) ) {
  2907.                e.preventDefault();
  2908.                e.stopPropagation();
  2909.                $details_btn.click();
  2910.             }
  2911.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2912.                alphaNav(e);
  2913.             }
  2914.             break;
  2915.  
  2916.          case 'g': // Cmd/Ctrl + G: Show image Grid
  2917.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) ) {
  2918.                e.preventDefault();
  2919.                e.stopPropagation();
  2920.                $grid_btn.click();
  2921.             }
  2922.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2923.                alphaNav(e);
  2924.             }
  2925.             break;
  2926.  
  2927.          case 'i': // Cmd/Ctrl + I: Toggle Invisibles
  2928.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) ) {
  2929.                e.preventDefault();
  2930.                e.stopPropagation();
  2931.                $inv_checkbox.find('input').click();
  2932.             }
  2933.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2934.                alphaNav(e);
  2935.             }
  2936.             break;
  2937.  
  2938.          case 'o': // Cmd/Ctrl + Shift + O: Open selected item in new window
  2939.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2940.                alphaNav(e);
  2941.             }
  2942.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) && e.shiftKey ) {
  2943.                window.open($selected_href);
  2944.             }
  2945.             break;
  2946.  
  2947.          case 'r': // Cmd/Ctrl + Shift + R: Refresh
  2948.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) ) {
  2949.                e.preventDefault();
  2950.                e.stopPropagation();
  2951.                $content_reload_btn.find('button').click();
  2952.             }
  2953.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2954.                alphaNav(e);
  2955.             }
  2956.             break;
  2957.  
  2958.          case 'w': // Close content pane if Close button visible with Cmd/Crtl + W
  2959.             // Doesn't work in some browsers: can't override default keybinding
  2960.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) && ( $content_pane.hasClass('[class^="has_"]') || $content_pane.hasClass('has_grid') ) ) {
  2961.                e.preventDefault();
  2962.                e.stopPropagation();
  2963.                $content_close_btn.find('button').click();
  2964.             }
  2965.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2966.                alphaNav(e);
  2967.             }
  2968.             break;
  2969.  
  2970.          case '.': // Increase previewed content size
  2971.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2972.                alphaNav(e);
  2973.             }
  2974.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) && e.shiftKey ) {
  2975.                $('#increase').click();
  2976.             }
  2977.             break;
  2978.  
  2979.          case ',': // Decrease previewed content size
  2980.             if ( !e.metaKey && !e.ctrlKey && !e.altKey ) {
  2981.                alphaNav(e);
  2982.             }
  2983.             if ( (navigator.platform.match("Mac") ? e.metaKey : e.ctrlKey) && e.shiftKey ) {
  2984.                $('#decrease').click();
  2985.             }
  2986.             break;
  2987.  
  2988.          case 'tab':
  2989.             break;
  2990.  
  2991.       } // end switch
  2992.    });
  2993.    // ***** END KEYBOARD EVENTS ***** //
  2994.  
  2995.    // ***** GRID SETUP ***** //
  2996.    // Create Font Grid Items
  2997.    const fontGridItems = function() {
  2998.       var $font_grid_items_arr = [];
  2999.       $dir_list_row.filter('.font').each(function() {
  3000.  
  3001.          let $this_link = $(this).find('a').attr('href');
  3002.          let $font_family = thisText($(this));
  3003.          let $display_name = $(this).find('a').text().slice( 0,$font_family.lastIndexOf('.') ).replace(/[_|-]/g,' ');
  3004.  
  3005.          if ( $font_family_arr.indexOf($font_family) == -1 ) {
  3006.             $font_family_arr.push($font_family);
  3007.             $font_preview_styles.append('@font-face { font-family: "'+ $font_family +'"; src: url("'+ $this_link +'"); }'); // only add style if it doesn't exist
  3008.          }
  3009.          $font_grid_item_el.empty().append('<p>'+ $display_name +'</p><h2 style=\'font-family: "'+ $font_family +'"\'; ><a href="'+ $this_link +'">'+ $display_name +'</a></h2>' );
  3010.          $font_grid_items_arr.push($font_grid_item_el.clone());
  3011.       });
  3012.       return $font_grid_items_arr;
  3013.    };
  3014.    // Create Image Grid Items
  3015.    const imageGridItems = function() {
  3016.       var $image_grid_items_arr = [];
  3017.       $dir_list_row.filter('.image').each(function() {
  3018.  
  3019.          let $this_link = thisLink(this);
  3020.          let $this_ext = thisExt(this);
  3021.          let exts = $row_types.image.filter( ext => $.inArray(ext, $row_settings.ignore) == -1 );
  3022.          let $display_name = $this_link.slice($this_link.lastIndexOf('/') + 1).replace(/[_|-]/g,' ');
  3023.  
  3024.          if ( $.inArray( $this_ext, exts ) > -1 ) { // if this row file ext is in the image extension array
  3025.             $image_grid_item_el.empty().append('<a href="'+$this_link+'"><img src="'+$this_link+'" title="'+$display_name+'" /></a>');
  3026.             $image_grid_items_arr.push( $image_grid_item_el.clone() );
  3027.          }
  3028.       });
  3029.       return $image_grid_items_arr;
  3030.    };
  3031.    // Make Grids
  3032.    function makeGrids(e,el) {
  3033.       e.stopPropagation();
  3034.       closeGrid();
  3035.       $content_pane.removeClass('has_hidden_grid').addClass('has_grid');
  3036.       if ( el.attr('id') === 'grid_btn' ) {
  3037. 	     $title.removeClass();
  3038.          fontGridItems().length === 0 ? $content_grid.addClass('has_image_grid') : $content_grid.addClass('has_grid');
  3039.          $content_grid.append( imageGridItems(), fontGridItems() );
  3040.       } else if ( el.attr('id') === 'show_font_grid' ) {
  3041. 	      $title.removeClass().addClass('font_grid');
  3042.          $content_grid.addClass('has_font_grid');
  3043.          $content_grid.append( fontGridItems() );
  3044.       } else {
  3045. 	      $title.removeClass().addClass('image_grid');
  3046.          $content_grid.addClass('has_image_grid');
  3047.          $content_grid.append( imageGridItems() );
  3048.       }
  3049.    }
  3050.  
  3051.    // ***** SCALE PREVIEWED IMAGES & FONTS ***** //
  3052.    var $em = parseInt(getComputedStyle(document.body).fontSize); // pts/em
  3053.    var $font_incr = 1.125; // scale factor for font size increase/decrease
  3054.    var $image_incr = 1.125;
  3055.    var $image_width;
  3056.    var $image_height;
  3057.    var $image_scale_factor;
  3058.    var $image_grid_item_size;
  3059.    var $grid_scale_factor;
  3060.  
  3061.    var fontSize = function(el) {
  3062.       return parseFloat(el.css('font-size'));
  3063.    };
  3064.    // Scale Fonts
  3065.    function scaleFonts(incr, y) {
  3066.       if ( y === -1 ) { incr = 1/incr; }
  3067.       if ( $content_pane.hasClass('has_grid') && ( $content_grid.hasClass('has_font_grid') || $content_grid.hasClass('has_grid') ) ) {
  3068.          $content_grid.css({'font-size':( fontSize($content_grid)/$em * incr ) +'em'});
  3069.          return;
  3070.       }
  3071.       if ( $content_pane.hasClass('has_font') ) {
  3072.          $content_font.css({'font-size':( fontSize($content_font)/$em * incr ) +'em'});
  3073.          return;
  3074.       }
  3075.    }
  3076.    // Scale Images
  3077.    function scaleImages(incr, y) {
  3078.       if (y === -1 ) { incr = 1/incr; }
  3079.       if ( $content_pane.hasClass('has_image') && !$content_pane.hasClass('has_grid') ) {
  3080.          $image_width = parseFloat( $content_image.find('img').width() ) * incr; // increment image size
  3081.          $image_height = parseFloat( $content_image.find('img').height() ) * incr; // increment image size
  3082.          $image_scale_factor = parseFloat( $content_image.attr('data-image-scale-factor') ); // get scale factor
  3083.  
  3084.          $content_image.attr('data-image-scale-factor', parseFloat( $image_scale_factor ) * incr ).find('img').removeClass('zoom_img').css({'width':$image_width +'px', 'max-width':'none', 'max-height':'none','top':'0','transform':'translateY(0)'});
  3085.  
  3086.          $content_image.scrollLeft( ( $image_width - $(window).width() )/2 ) ;
  3087.          if ( ( ( $image_height - $(window).height() )/2 ) > 0 ) {
  3088.             $content_image.scrollTop( ( $image_height - $(window).height() )/2 );
  3089.          }
  3090.          return;
  3091.       }
  3092.       if ( $content_pane.hasClass('has_grid') && ( $content_grid.hasClass('has_image_grid') || $content_grid.hasClass('has_grid') ) ) {
  3093.          $image_grid_item_size = parseFloat( $('.image_grid_item').width() * incr);
  3094.          $grid_scale_factor = parseFloat( $content_grid.attr('data-grid-scale-factor') );
  3095.  
  3096.          $content_grid.attr('data-grid-scale-factor', parseFloat( $grid_scale_factor ) * incr ).css({'grid-template-columns':'repeat(auto-fit, minmax('+ ($image_grid_item_size) +'px, 1fr))', 'grid-template-rows':'repeat(auto, minmax('+ ($image_grid_item_size) +'px))' });
  3097.          $content_grid.find('.image_grid_item').css({'width':$image_grid_item_size +'px', 'height':$image_grid_item_size +'px'}); // grid items are square, so width = height
  3098.          $content_grid.find('img').css({'max-width':( $image_grid_item_size - $image_grid_item_size/8 ) +'px', 'max-height':( $image_grid_item_size - $image_grid_item_size/8) +'px'});
  3099.          return;
  3100.       }
  3101.    }
  3102.    // Scale Fonts and Images
  3103.    function scalePreviewItems(y) { // combine scaling into one function
  3104.       scaleImages( $image_incr, y );
  3105.       scaleFonts( $font_incr, y );
  3106.    }
  3107.    // Scale Content
  3108.    $content_scale.on('click','span',function() {
  3109.       if ( $(this).attr('id') === 'increase' ) {
  3110.          scalePreviewItems(1);
  3111.       }
  3112.       if ( $(this).attr('id') === 'decrease' ) {
  3113.          scalePreviewItems(-1);
  3114.       }
  3115.    });
  3116.    // Zoom Images on click
  3117.    function zoomImage(x,e) {
  3118.       $this_link = $(x).attr('src');
  3119.       var $offset = $(x).offset();
  3120.       var $this_width = $(x).width();
  3121.       var $this_height = $(x).height();
  3122.  
  3123.        $(x).toggleClass('zoom_img');
  3124.        ( $(x).attr('style') !== '' || $(x).attr('style') !== undefined ) ? $(x).attr('style','') : null;
  3125.        $content_image.find('img:not(.zoom_img)').css({'max-height':$content_image.innerHeight() - 52 + 'px'})
  3126.       if ( $this_link !== undefined ) {
  3127.          getDimensions( $this_link, function( width, height ) {
  3128.             $content_image.scrollLeft( (e.pageX - $offset.left) * width/($this_width + 13) - ( e.pageX - $offset.left ) - 52 ) ;
  3129.             $content_image.scrollTop( (e.pageY - $offset.top) * height/($this_height + 13) - ( e.pageY - $offset.top ) - 52 );
  3130.          });
  3131.       }
  3132.    }
  3133.    $content_image.on('click', 'img', function(e) {
  3134.       zoomImage( this,e )
  3135.    });
  3136.    // ***** END SCALE PREVIEW ITEMS ***** //
  3137.  
  3138.    // ***** AUDIO CONTENT ***** //
  3139.  
  3140.    var $count = 0;
  3141.    var $playlist;
  3142.    var $shuffleList = [];
  3143.    var $next;
  3144.    var $task;
  3145.    // Update Playlist
  3146.    function updatePlaylist() {
  3147.       $playlist = [];
  3148.       $dir_list_row.filter('.audio:not(.unchecked)').each(function() {
  3149.          $this_link = thisLink(this);
  3150.          $playlist.push($this_link);
  3151.       });
  3152.       return $playlist;
  3153.    }
  3154.    // Initialize Shuffle List
  3155.    function initShuffleList() {
  3156.       updatePlaylist();
  3157.       $shuffleList = [];
  3158.       for ( let i = 0; i < $playlist.length; i += 1 ) {
  3159.          $shuffleList.push(i);
  3160.       }
  3161.       return $shuffleList;
  3162.    }
  3163.    // Update Play Count
  3164.    function updateCount() {
  3165.       $count = $playing.index('.audio:not(.unchecked)');
  3166.    }
  3167.    // Check/Uncheck Audio/Video Files
  3168.    function toggleChecked(e) {
  3169.       e.stopPropagation();
  3170.       $(this).blur();
  3171.       thisRow(this).toggleClass('unchecked');
  3172.       updateCount();
  3173.       updatePlaylist();
  3174.       initShuffleList();
  3175.    }
  3176.    $dir_list_row.filter('.media').on('click','input', toggleChecked );
  3177.    // Check/Uncheck all Audio/Video Files
  3178.    function toggleAllChecked(e) {
  3179.       e.stopPropagation();
  3180.       $dir_list_row.find('input').trigger('click');
  3181.       updatePlaylist();
  3182.       initShuffleList();
  3183.    }
  3184.    $dir_list.find('#play_toggle').on('click', toggleAllChecked );
  3185.  
  3186.    // Is Playing
  3187.    function isPlaying(el) {
  3188.       return (el.get(0).currentTime > 0 && !el.get(0).paused && !el.get(0).ended);
  3189.    }
  3190.    // Play Media
  3191.    function playMedia(task) {
  3192.       $('.playing').hasClass('audio') ? $audio.trigger(task) : $content_video.trigger(task);
  3193.    }
  3194.    // Skip media tracks +/-10/30 seconds
  3195.    function mediaSkip(e) {
  3196.       let factor = e.key === 'ArrowLeft' ? -1 : 1;
  3197.       if ( e.altKey && e.shiftKey ) {
  3198.          n = 30;
  3199.       } else if ( e.altKey ) {
  3200.          n = 10;
  3201.       }
  3202.       let $media = $('.playing').hasClass('audio') ? $audio : $content_video;
  3203.       let $time = $media.prop('currentTime');
  3204.       $media.prop('currentTime', $time + factor*(n));
  3205.    }
  3206.  
  3207.    // Play/Pause Audio/Video
  3208.    function playPauseMedia() {
  3209.       if ( $content_pane.hasClass('has_audio') ) {
  3210.          isPlaying($audio) ? $audio.trigger('pause') : $audio.trigger('play');
  3211.       }
  3212.       if ( $content_pane.hasClass('has_video') ) {
  3213.          isPlaying($content_video) ? $content_video.trigger('pause') : $content_video.trigger('play');
  3214.       }
  3215.    }
  3216.    // Play Next Track
  3217.    function playPrevNextTrackBtn(el) {
  3218.       e = $.Event("keydown");
  3219.       e.key = el.attr('id') === "prev_track" ? 'ArrowLeft' : 'ArrowRight';
  3220.       playPrevNextTrack(e);
  3221.    }
  3222.    // Prev/Next Track buttons
  3223.    $('.prev_next_track_btn').on( 'click', function() { playPrevNextTrackBtn( $(this) ); });
  3224.  
  3225.    // Toggle Shuffle Play
  3226.    function toggleShuffle() {
  3227.       let $rand = Math.floor( Math.random() * ($media.length) );
  3228.       if ( $shuffle.find('input').prop('checked') ) {
  3229.          ( !isPlaying($audio) && !isPlaying($content_video) ) ? clickThis( $media.eq($rand) ) : null; // if no media playing, select random track; if media playing, do nothing, then shuffle.
  3230.          updatePlaylist();
  3231.          initShuffleList();
  3232.          $count = Math.floor( Math.random() * $shuffleList.length );
  3233.       }
  3234.    }
  3235.    $shuffle.on('click', toggleShuffle );
  3236.  
  3237.    // Shuffle Play
  3238.    function shuffle() {
  3239.       if ( $shuffleList.length <= 1 && $loop.find('input').prop('checked') ) { // If loop is checked, and all songs have been shuffled...
  3240.          initShuffleList();
  3241.          $next = Math.floor( Math.random() * $shuffleList.length ); // choose a random index number from the remaining unplayed songs,
  3242.          $count = $shuffleList[ $next ]; // set the playing $count to the index
  3243.       } else if ( $shuffleList.length === 0 ) { // else if all songs have been shuffled, select the first song and stop;
  3244.          $count = 0;
  3245.       } else {
  3246.          $next = Math.floor( Math.random() * $shuffleList.length ); // else choose a random index number from the remaining unplayed songs,
  3247.          $count = $shuffleList[ $next ]; // set the playing $count to the index
  3248.          $shuffleList.splice( $next, 1 ); // remove the indexed value from the unplayed list,
  3249.       }
  3250.    }
  3251.    // Initialize Audio
  3252.    function initMedia() {
  3253.       $('#audio, #content_video').on('ended', function() {
  3254.          playPrevNextTrack('ArrowRight');
  3255.          scrollThis('dir_list','playing');
  3256.       });
  3257.    }
  3258.    initMedia();
  3259.    // ***** END AUDIO CONTENT ***** //
  3260.  
  3261.    // ***** OTHER FUNCTIONS ***** //
  3262.  
  3263.    // Resize Sidebar/Content Pane
  3264.    function resizeSidebar(f) {
  3265.       f.stopPropagation();
  3266.       var $startX = f.pageX;
  3267.       var $sidebar_width = $sidebar_wrapper.width();
  3268.       var $window_width = window.innerWidth;
  3269.       $sidebar_overlay.show(); // needed to prevent interactions with iframe
  3270.       $content_overlay.show(); // needed to prevent interactions with iframe
  3271.       $sidebar_wrapper.css({'-webkit-user-select':'none','-moz-user-select':'none','user-select':'none'});
  3272.  
  3273.       $(document).on('mousemove',function(e) {
  3274.          e.stopPropagation();
  3275.          var $deltaX = e.pageX - $startX;
  3276.          if ( e.pageX > 200 && e.pageX < $window_width - 200 ) {
  3277.             $sidebar_wrapper.css({'width':$sidebar_width + $deltaX + 'px'});
  3278.             $content_pane.css({'width':($window_width - $sidebar_width) - $deltaX + 'px'});
  3279.          }
  3280.          setContentHeight();
  3281.       });
  3282.       $(document).on('mouseup',function() {
  3283.          $sidebar_overlay.hide(); // needed to prevent interactions with iframe
  3284.          $content_overlay.hide();
  3285.          $sidebar_wrapper.css({'-webkit-user-select':'auto','-moz-user-select':'auto','user-select':'auto'});
  3286.          $(document).off('mousemove');
  3287.          $sidebar_width = $sidebar_wrapper.width();
  3288.          $query_prefs = getQueryPrefs();
  3289.          $query_prefs.set('width',$sidebar_width);
  3290.          updateQuery();
  3291.       });
  3292.    }
  3293.    $handle.on('mousedown', resizeSidebar );
  3294.  
  3295.    // EXPORT SETTINGS
  3296.    let $settings_string = unescape( $settings.toSource() );
  3297.    $settings_string = $settings_string.replace('JSON.parse\(unescape\("\{','').replace('\}"))','').replace(/\/",/g,'",').replace(/\/"],/g,'"],').replace(/"(\w+?)":/g,'\n\n$1:\t');
  3298.  
  3299.    var save = function(filename, data) {
  3300.       var blob = new Blob([data], {type: 'text/html'});
  3301.        var elem = window.document.createElement('a');
  3302.        elem.href = window.URL.createObjectURL(blob);
  3303.        elem.download = filename;
  3304.        document.body.appendChild(elem);
  3305.        elem.click();
  3306.        document.body.removeChild(elem);
  3307.        URL.revokeObjectURL(blob);
  3308.    }
  3309.  
  3310.    $export_settings.on('click','a',function(e) {
  3311.       e.preventDefault();
  3312.       save("settings.txt",$settings_string);
  3313.    });
  3314.  
  3315. })();