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Wanikani Open Framework - Settings module

Settings module for Wanikani Open Framework

当前为 2022-03-17 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/38576/1029391/Wanikani%20Open%20Framework%20-%20Settings%20module.js 

  1. // ==UserScript==
  2. // @name        Wanikani Open Framework - Settings module
  3. // @namespace   rfindley
  4. // @description Settings module for Wanikani Open Framework
  5. // @version     1.0.15
  6. // @copyright   2018+, Robin Findley
  7. // @license     MIT; http://opensource.org/licenses/MIT
  8. // ==/UserScript==
  9.  
  10. (function(global) {
  11.  
  12. 	const publish_context = false; // Set to 'true' to make context public.
  13.  
  14. 	//########################################################################
  15. 	//------------------------------
  16. 	// Constructor
  17. 	//------------------------------
  18. 	function Settings(config) {
  19. 		var context = {
  20. 			self: this,
  21. 			cfg: config,
  22. 		}
  23. 		if (!config.content) config.content = config.settings;
  24.  
  25. 		if (publish_context) this.context = context;
  26.  
  27. 		// Create public methods bound to context.
  28. 		this.cancel = cancel_btn.bind(context, context);
  29. 		this.open = open.bind(context, context);
  30. 		this.close = close.bind(context, context);
  31. 		this.load = load_settings.bind(context, context);
  32. 		this.save = save_settings.bind(context, context);
  33. 		this.refresh = refresh.bind(context, context);
  34. 		this.background = Settings.background;
  35. 	};
  36.  
  37. 	global.wkof.Settings = Settings;
  38. 	Settings.save = save_settings;
  39. 	Settings.load = load_settings;
  40. 	Settings.background = {
  41. 		open: open_background,
  42. 		close: close_background,
  43. 	}
  44. 	//########################################################################
  45.  
  46. 	wkof.settings = {};
  47. 	var ready = false;
  48. 	var hotkey_elem;
  49.  
  50. 	//------------------------------
  51. 	// Convert a config object to html dialog.
  52. 	//------------------------------
  53. 	function config_to_html(context) {
  54. 		context.config_list = {};
  55. 		var base = wkof.settings[context.cfg.script_id];
  56. 		if (base === undefined) wkof.settings[context.cfg.script_id] = base = {};
  57.  
  58. 		var html = '', item, child_passback = {};
  59. 		var id = context.cfg.script_id+'_dialog';
  60. 		for (var name in context.cfg.content) {
  61. 			var item = context.cfg.content[name];
  62. 			html += parse_item(name, context.cfg.content[name], child_passback);
  63. 		}
  64. 		if (child_passback.tabs)
  65. 			html = assemble_pages(id, child_passback.tabs, child_passback.pages) + html;
  66. 		return '<form>'+html+'</form>';
  67.  
  68. 		//============
  69. 		function parse_item(name, item, passback) {
  70. 			if (typeof item.type !== 'string') return '';
  71. 			var id = context.cfg.script_id+'_'+name;
  72. 			var cname, html = '', value, child_passback, non_page = '';
  73. 			switch (item.type) {
  74. 				case 'tabset':
  75. 					child_passback = {};
  76. 					for (cname in item.content) 
  77. 						non_page += parse_item(cname, item.content[cname], child_passback);
  78. 					if (child_passback.tabs)
  79. 						html = assemble_pages(id, child_passback.tabs, child_passback.pages);
  80. 					break;
  81.  
  82. 				case 'page':
  83. 					if (typeof item.content !== 'object') item.content = {};
  84. 					if (!passback.tabs) {
  85. 						passback.tabs = [];
  86. 						passback.pages = [];
  87. 					}
  88. 					passback.tabs.push('<li id="'+id+'_tab"'+to_title(item.hover_tip)+'><a href="#'+id+'">'+item.label+'</a></li>');
  89. 					child_passback = {};
  90. 					for (cname in item.content) 
  91. 						non_page += parse_item(cname, item.content[cname], child_passback);
  92. 					if (child_passback.tabs)
  93. 						html = assemble_pages(id, child_passback.tabs, child_passback.pages);
  94. 					passback.pages.push('<div id="'+id+'">'+html+non_page+'</div>');
  95. 					passback.is_page = true;
  96. 					html = '';
  97. 					break;
  98.  
  99. 				case 'group':
  100. 					if (typeof item.content !== 'object') item.content = {};
  101. 					child_passback = {};
  102. 					for (cname in item.content) 
  103. 						non_page += parse_item(cname, item.content[cname], child_passback);
  104. 					if (child_passback.tabs)
  105. 						html = assemble_pages(id, child_passback.tabs, child_passback.pages);
  106. 					html = '<fieldset id="'+id+'" class="wkof_group"><legend>'+item.label+'</legend>'+html+non_page+'</fieldset>';
  107. 					break;
  108.  
  109. 				case 'dropdown':
  110. 				case 'list':
  111. 					var classes = 'setting', attribs = '';
  112. 					context.config_list[name] = item;
  113. 					value = get_value(context, base, name);
  114. 					if (value === undefined) {
  115. 						if (item.default !== undefined) {
  116. 							value = item.default;
  117. 						} else {
  118. 							if (item.multi === true) {
  119. 								value = {};
  120. 								Object.keys(item.content).forEach(function(key){
  121. 									value[key] = false;
  122. 								});
  123. 							} else {
  124. 								value = Object.keys(item.content)[0];
  125. 							}
  126. 						}
  127. 						set_value(context, base, name, value);
  128. 					}
  129. 					if (item.type === 'list') {
  130. 						classes += ' list';
  131. 						attribs += ' size="'+(item.size || Object.keys(item.content).length || 4)+'"';
  132. 						if (item.multi === true) attribs += ' multiple';
  133. 					}
  134. 					html = '<select id="'+id+'" name="'+name+'" class="'+classes+'"'+attribs+to_title(item.hover_tip)+'>';
  135. 					for (cname in item.content)
  136. 						html += '<option name="'+cname+'">'+escape_text(item.content[cname])+'</option>';
  137. 					html += '</select>';
  138. 					html = make_label(item) + wrap_right(html);
  139. 					html = wrap_row(html, item.full_width, item.hover_tip);
  140. 					break;
  141.  
  142. 				case 'checkbox':
  143. 					context.config_list[name] = item;
  144. 					html = make_label(item);
  145. 					value = get_value(context, base, name);
  146. 					if (value === undefined) {
  147. 						value = (item.default || false);
  148. 						set_value(context, base, name, value);
  149. 					}
  150. 					html += wrap_right('<input id="'+id+'" class="setting" type="checkbox" name="'+name+'">');
  151. 					html = wrap_row(html, item.full_width, item.hover_tip);
  152. 					break;
  153.  
  154. 				case 'input':
  155. 				case 'number':
  156. 				case 'text':
  157. 					var itype = item.type;
  158. 					if (itype === 'input') itype = item.subtype || 'text';
  159. 					context.config_list[name] = item;
  160. 					html += make_label(item);
  161. 					value = get_value(context, base, name);
  162. 					if (value === undefined) {
  163. 						var is_number = (item.type==='number' || item.subtype==='number');
  164. 						value = (item.default || (is_number==='number'?0:''));
  165. 						set_value(context, base, name, value);
  166. 					}
  167. 					html += wrap_right('<input id="'+id+'" class="setting" type="'+itype+'" name="'+name+'"'+(item.placeholder?' placeholder="'+escape_attr(item.placeholder)+'"':'')+'>');
  168. 					html = wrap_row(html, item.full_width, item.hover_tip);
  169. 					break;
  170.  
  171. 				case 'color':
  172. 					context.config_list[name] = item;
  173. 					html += make_label(item);
  174. 					value = get_value(context, base, name);
  175. 					if (value === undefined) {
  176. 						value = (item.default || '#000000');
  177. 						set_value(context, base, name, value);
  178. 					}
  179. 					html += wrap_right('<input id="'+id+'" class="setting" type="color" name="'+name+'">');
  180. 					html = wrap_row(html, item.full_width, item.hover_tip);
  181. 					break;
  182.  
  183. 				case 'button':
  184. 					context.config_list[name] = item;
  185. 					html += make_label(item);
  186. 					var text = escape_text(item.text || 'Click');
  187. 					html += wrap_right('<button type="button" class="setting" name="'+name+'">'+text+'</button>');
  188. 					html = wrap_row(html, item.full_width, item.hover_tip);
  189. 					break;
  190.  
  191. 				case 'divider':
  192. 					html += '<hr>';
  193. 					break;
  194.  
  195. 				case 'section':
  196. 					html += '<section>'+(item.label || '')+'</section>';
  197. 					break;
  198.  
  199. 				case 'html':
  200. 					html += make_label(item);
  201. 					html += item.html;
  202. 					switch (item.wrapper) {
  203. 						case 'row': html = wrap_row(html, null, item.hover_tip); break;
  204. 						case 'left': html = wrap_left(html); break;
  205. 						case 'right': html = wrap_right(html); break;
  206. 					}
  207. 					break;
  208. 			}
  209. 			return html;
  210.  
  211. 			function make_label(item) {
  212. 				if (typeof item.label !== 'string') return '';
  213. 				return wrap_left('<label for="'+id+'">'+item.label+'</label>');
  214. 			}
  215. 		}
  216.  
  217. 		//============
  218. 		function assemble_pages(id, tabs, pages) {return '<div id="'+id+'" class="wkof_stabs"><ul>'+tabs.join('')+'</ul>'+pages.join('')+'</div>';}
  219. 		function wrap_row(html,full,hover_tip) {return '<div class="row'+(full?' full':'')+'"'+to_title(hover_tip)+'>'+html+'</div>';}
  220. 		function wrap_left(html) {return '<div class="left">'+html+'</div>';}
  221. 		function wrap_right(html) {return '<div class="right">'+html+'</div>';}
  222. 		function escape_text(text) {return text.replace(/[<>]/g, function(ch) {var map={'<':'&lt','>':'&gt;'}; return map[ch];});}
  223. 		function escape_attr(text) {return text.replace(/"/g, '&quot;');}
  224. 		function to_title(tip) {if (!tip) return ''; return ' title="'+tip.replace(/"/g,'&quot;')+'"';}
  225. 	}
  226.  
  227. 	//------------------------------
  228. 	// Open the settings dialog.
  229. 	//------------------------------
  230. 	function open(context) {
  231. 		if (!ready) return;
  232. 		if ($('#wkofs_'+context.cfg.script_id).length > 0) return;
  233. 		install_anchor();
  234. 		if (context.cfg.background !== false) open_background();
  235. 		var dialog = $('<div id="wkofs_'+context.cfg.script_id+'" class="wkof_settings" style="display:none;"></div>');
  236. 		dialog.html(config_to_html(context));
  237.  
  238. 		var width = 500;
  239. 		if (window.innerWidth < 510) {
  240. 			width = 280;
  241. 			dialog.addClass('narrow');
  242. 		}
  243. 		dialog.dialog({
  244. 			title: context.cfg.title,
  245. 			buttons: [
  246. 				{text:'Save',click:save_btn.bind(context,context)},
  247. 				{text:'Cancel',click:cancel_btn.bind(context,context)}
  248. 			],
  249. 			width: width,
  250. 			maxHeight: document.body.clientHeight,
  251. 			modal: false,
  252. 			autoOpen: false,
  253. 			appendTo: '#wkof_ds',
  254. 			resize: resize.bind(context,context),
  255. 			close: close.bind(context,context)
  256. 		});
  257. 		$(dialog.dialog('widget')).css('position','fixed');
  258.  
  259. 		$('.wkof_stabs').tabs({activate:tab_activated.bind(null,context)});
  260. 		var settings = wkof.settings[context.cfg.script_id];
  261. 		if (settings && settings.wkofs_active_tabs instanceof Array) {
  262. 			var active_tabs = settings.wkofs_active_tabs;
  263. 			for (var tab_idx = 0; tab_idx < active_tabs.length; tab_idx++) {
  264. 				var tab = $(active_tabs[tab_idx]);
  265. 				tab.closest('.ui-tabs').tabs({active:tab.index()});
  266. 			}
  267. 		}
  268.  
  269. 		dialog.dialog('open');
  270. 		var dialog_elem = $('#wkofs_'+context.cfg.script_id);
  271. 		dialog_elem.find('.setting[multiple]').on('mousedown', toggle_multi.bind(null,context));
  272. 		dialog_elem.find('.setting').on('change', setting_changed.bind(null,context));
  273. 		dialog_elem.find('form').on('submit', function(){return false;});
  274. 		dialog_elem.find('button.setting').on('click', setting_button_clicked.bind(null,context));
  275.  
  276. 		if (typeof context.cfg.pre_open === 'function') context.cfg.pre_open(dialog);
  277. 		context.reversions = $.extend(true,{},wkof.settings[context.cfg.script_id]);
  278. 		refresh(context);
  279.  
  280. 		// Enable workaround that blocks WK's hotkey handler.
  281. 		hotkey_elem = $('#reviews, #quiz').prop('id');
  282. 		if (hotkey_elem) $('#'+hotkey_elem).prop('id',hotkey_elem+'_backup');
  283.  
  284. 		//============
  285. 		function tab_activated(context, event, ui) {
  286. 			var dialog = $('#wkofs_'+context.cfg.script_id);
  287. 			var wrapper = $(dialog.dialog('widget'));
  288. 			if (wrapper.outerHeight() + wrapper.position().top > document.body.clientHeight) {
  289. 				dialog.dialog('option', 'maxHeight', document.body.clientHeight);
  290. 			}
  291. 		}
  292.  
  293. 		function resize(context, event, ui){
  294. 			var dialog = $('#wkofs_'+context.cfg.script_id);
  295. 			var is_narrow = dialog.hasClass('narrow');
  296. 			if (is_narrow && ui.size.width >= 510)
  297. 				dialog.removeClass('narrow');
  298. 			else if (!is_narrow && ui.size.width < 490)
  299. 				dialog.addClass('narrow');
  300. 		}
  301.  
  302. 		function toggle_multi(context, e) {
  303. 			if (e.button != 0) return true;
  304. 			var multi = $(e.currentTarget);
  305. 			var scroll = e.currentTarget.scrollTop;
  306. 			e.target.selected = !e.target.selected;
  307. 			setTimeout(function(){
  308. 				e.currentTarget.scrollTop = scroll;
  309. 				multi.focus();
  310. 			},0);
  311. 			return setting_changed(context, e);
  312. 		}
  313.  
  314. 		function setting_button_clicked(context, e) {
  315. 			var name = e.target.attributes.name.value;
  316. 			var item = context.config_list[name];
  317. 			if (typeof item.on_click === 'function')
  318. 				item.on_click.call(e, name, item, setting_changed.bind(context, context, e));
  319. 		}
  320. 	}
  321.  
  322. 	//------------------------------
  323. 	// Open the settings dialog.
  324. 	//------------------------------
  325. 	function save_settings(context) {
  326. 		var script_id = (typeof context === 'string' ? context : context.cfg.script_id);
  327. 		var settings = wkof.settings[script_id];
  328. 		if (!settings) return Promise.resolve();
  329. 		return wkof.file_cache.save('wkof.settings.'+script_id, settings);
  330. 	}
  331.  
  332. 	//------------------------------
  333. 	// Open the settings dialog.
  334. 	//------------------------------
  335. 	function load_settings(context, defaults) {
  336. 		var script_id = (typeof context === 'string' ? context : context.cfg.script_id);
  337. 		return wkof.file_cache.load('wkof.settings.'+script_id)
  338. 		.then(finish, finish.bind(null,{}));
  339.  
  340. 		function finish(settings) {
  341. 			if (defaults)
  342. 				wkof.settings[script_id] = $.extend(true, {}, defaults, settings);
  343. 			else
  344. 				wkof.settings[script_id] = settings;
  345. 			return wkof.settings[script_id];
  346. 		}
  347. 	}
  348.  
  349. 	//------------------------------
  350. 	// Save button handler.
  351. 	//------------------------------
  352. 	function save_btn(context, e) {
  353. 		var script_id = context.cfg.script_id;
  354. 		var dialog = $('#wkofs_'+script_id);
  355. 		var settings = wkof.settings[script_id];
  356. 		if (settings) {
  357. 			var active_tabs = dialog.find('.ui-tabs-active').toArray().map(function(tab){return '#'+tab.attributes.id.value});
  358. 			if (active_tabs.length > 0) settings.wkofs_active_tabs = active_tabs;
  359. 		}
  360. 		if (context.cfg.autosave === undefined || context.cfg.autosave === true) save_settings(context);
  361. 		if (typeof context.cfg.on_save === 'function') context.cfg.on_save(wkof.settings[context.cfg.script_id]);
  362. 		wkof.trigger('wkof.settings.save');
  363. 		context.keep_settings = true;
  364. 		dialog.dialog('close');
  365. 	}
  366.  
  367. 	//------------------------------
  368. 	// Cancel button handler.
  369. 	//------------------------------
  370. 	function cancel_btn(context) {
  371. 		var dialog = $('#wkofs_'+context.cfg.script_id);
  372. 		dialog.dialog('close');
  373. 		if (typeof context.cfg.on_cancel === 'function') context.cfg.on_cancel(wkof.settings[context.cfg.script_id]);
  374. 	}
  375.  
  376. 	//------------------------------
  377. 	// Close and destroy the dialog.
  378. 	//------------------------------
  379. 	function close(context, keep_settings) {
  380. 		var dialog = $('#wkofs_'+context.cfg.script_id);
  381. 		if (!context.keep_settings && keep_settings !== true) {
  382. 			// Revert settings
  383. 			wkof.settings[context.cfg.script_id] = $.extend(true,{},context.reversions);
  384. 			delete context.reversions;
  385. 		}
  386. 		delete context.keep_settings;
  387. 		dialog.dialog('destroy');
  388. 		if (context.cfg.background !== false) close_background();
  389. 		if (typeof context.cfg.on_close === 'function') context.cfg.on_close(wkof.settings[context.cfg.script_id]);
  390.  
  391. 		// Disable workaround that blocks WK's hotkey handler.
  392. 		if (hotkey_elem) $('#'+hotkey_elem+'_backup').prop('id',hotkey_elem);
  393. 		hotkey_elem = undefined;
  394. 	}
  395.  
  396. 	//------------------------------
  397. 	// Update the dialog to reflect changed settings.
  398. 	//------------------------------
  399. 	function refresh(context) {
  400. 		var script_id = context.cfg.script_id;
  401. 		var settings = wkof.settings[script_id];
  402. 		var dialog = $('#wkofs_'+script_id);
  403. 		for (var name in context.config_list) {
  404. 			var elem = dialog.find('#'+script_id+'_'+name);
  405. 			var config = context.config_list[name];
  406. 			var value = get_value(context, settings, name);
  407. 			switch (config.type) {
  408. 				case 'dropdown':
  409. 				case 'list':
  410. 					if (config.multi === true) {
  411. 						elem.find('option').each(function(i,e){
  412. 							var opt_name = e.getAttribute('name') || '#'+e.index;
  413. 							e.selected = value[opt_name];
  414. 						});
  415. 					} else {
  416. 						elem.find('option[name="'+value+'"]').prop('selected', true);
  417. 					}
  418. 					break;
  419.  
  420. 				case 'checkbox':
  421. 					elem.prop('checked', value);
  422. 					break;
  423.  
  424. 				default:
  425. 					elem.val(value);
  426. 					break;
  427. 			}
  428. 		}
  429. 		if (typeof context.cfg.on_refresh === 'function') context.cfg.on_refresh(wkof.settings[context.cfg.script_id]);
  430. 	}
  431.  
  432. 	//------------------------------
  433. 	// Handler for live settings changes.  Handles built-in validation and user callbacks.
  434. 	//------------------------------
  435. 	function setting_changed(context, event) {
  436. 		var elem = $(event.currentTarget);
  437. 		var name = elem.attr('name');
  438. 		var item = context.config_list[name];
  439. 		var config;
  440.  
  441. 		// Extract the value
  442. 		var value;
  443. 		var itype = ((item.type==='input' && item.subtype==='number') ? 'number' : item.type);
  444. 		switch (itype) {
  445. 			case 'dropdown':
  446. 			case 'list':
  447. 				if (item.multi === true) {
  448. 					value = {};
  449. 					elem.find('option').each(function(i,e){
  450. 						var opt_name = e.getAttribute('name') || '#'+e.index;
  451. 						value[opt_name] = e.selected;
  452. 					});
  453. 				} else {
  454. 					value = elem.find(':checked').attr('name');
  455. 				}
  456. 				break;
  457. 			case 'checkbox': value = elem.is(':checked'); break;
  458. 			case 'number': value = Number(elem.val()); break;
  459. 			default: value = elem.val(); break;
  460. 		}
  461.  
  462. 		// Validation
  463. 		var valid = {valid:true, msg:''};
  464. 		if (typeof item.validate === 'function') valid = item.validate.call(event.target, value, item);
  465. 		if (typeof valid === 'boolean')
  466. 			valid = {valid:valid, msg:''};
  467. 		else if (typeof valid === 'string')
  468. 			valid = {valid:false, msg:valid};
  469. 		else if (valid === undefined)
  470. 			valid = {valid:true, msg:''};
  471. 		switch (itype) {
  472. 			case 'number':
  473. 				if (typeof item.min === 'number' && Number(value) < item.min) {
  474. 					valid.valid = false;
  475. 					if (valid.msg.length === 0) {
  476. 						if (typeof item.max === 'number')
  477. 							valid.msg = 'Must be between '+item.min+' and '+item.max;
  478. 						else
  479. 							valid.msg = 'Must be '+item.min+' or higher';
  480. 					}
  481. 				} else if (typeof item.max === 'number' && Number(value) > item.max) {
  482. 					valid.valid = false;
  483. 					if (valid.msg.length === 0) {
  484. 						if (typeof item.min === 'number')
  485. 							valid.msg = 'Must be between '+item.min+' and '+item.max;
  486. 						else
  487. 							valid.msg = 'Must be '+item.max+' or lower';
  488. 					}
  489. 				}
  490. 				if (!valid)
  491. 				break;
  492.  
  493. 			case 'text':
  494. 				if (item.match !== undefined && value.match(item.match) === null) {
  495. 					valid.valid = false;
  496. 					if (valid.msg.length === 0)
  497. 						valid.msg = item.error_msg || 'Invalid value';
  498. 				}
  499. 				break;
  500. 		}
  501.  
  502. 		// Style for valid/invalid
  503. 		var parent = elem.closest('.right');
  504. 		parent.find('.note').remove();
  505. 		if (typeof valid.msg === 'string' && valid.msg.length > 0)
  506. 			parent.append('<div class="note'+(valid.valid?'':' error')+'">'+valid.msg+'</div>');
  507. 		if (!valid.valid) {
  508. 			elem.addClass('invalid');
  509. 		} else {
  510. 			elem.removeClass('invalid');
  511. 		}
  512.  
  513. 		var script_id = context.cfg.script_id;
  514. 		var settings = wkof.settings[script_id];
  515. 		if (valid.valid) {
  516. 			if (item.no_save !== true) set_value(context, settings, name, value);
  517. 			if (typeof item.on_change === 'function') item.on_change.call(event.target, name, value, item);
  518. 			if (typeof context.cfg.on_change === 'function') context.cfg.on_change.call(event.target, name, value, item);
  519. 			if (item.refresh_on_change === true) refresh(context);
  520. 		}
  521.  
  522. 		return false;
  523. 	}
  524.  
  525. 	function get_value(context, base, name){
  526. 		var item = context.config_list[name];
  527. 		var evaluate = (item.path !== undefined);
  528. 		var path = (item.path || name);
  529. 		try {
  530. 			if (!evaluate) return base[path];
  531. 			return eval(path.replace(/@/g,'base.'));
  532. 		} catch(e) {return;}
  533. 	}
  534.  
  535. 	function set_value(context, base, name, value) {
  536. 		var item = context.config_list[name];
  537. 		var evaluate = (item.path !== undefined);
  538. 		var path = (item.path || name);
  539. 		try {
  540. 			if (!evaluate) return base[path] = value;
  541. 			var depth=0, new_path='', param, c;
  542. 			for (var idx = 0; idx < path.length; idx++) {
  543. 				c = path[idx];
  544. 				if (c === '[') {
  545. 					if (depth++ === 0) {
  546. 						new_path += '[';
  547. 						param = '';
  548. 					} else {
  549. 						param += '[';
  550. 					}
  551. 				} else if (c === ']') {
  552. 					if (--depth === 0) {
  553. 						new_path += JSON.stringify(eval(param)) + ']';
  554. 					} else {
  555. 						param += ']';
  556. 					}
  557. 				} else {
  558. 					if (c === '@') c = 'base.';
  559. 					if (depth === 0)
  560. 						new_path += c;
  561. 					else
  562. 						param += c;
  563. 				}
  564. 			}
  565. 			eval(new_path + '=value');
  566. 		} catch(e) {return;}
  567. 	}
  568.  
  569. 	function install_anchor() {
  570. 		var anchor = $('#wkof_ds');
  571. 		if (anchor.length === 0) {
  572. 			anchor = $('<div id="wkof_ds"></div></div>');
  573. 			$('body').prepend(anchor);
  574. 		}
  575. 		return anchor;
  576. 	}
  577.  
  578. 	function open_background() {
  579. 		var anchor = install_anchor();
  580. 		var bkgd = anchor.find('> #wkofs_bkgd');
  581. 		if (bkgd.length === 0) {
  582. 			bkgd = $('<div id="wkofs_bkgd" refcnt="0"></div>');
  583. 			anchor.prepend(bkgd);
  584. 		}
  585. 		var refcnt = Number(bkgd.attr('refcnt'));
  586. 		bkgd.attr('refcnt', refcnt + 1);
  587. 	}
  588.  
  589. 	function close_background() {
  590. 		var bkgd = $('#wkof_ds > #wkofs_bkgd');
  591. 		if (bkgd.length === 0) return;
  592. 		var refcnt = Number(bkgd.attr('refcnt'));
  593. 		if (refcnt <= 0) return;
  594. 		bkgd.attr('refcnt', refcnt - 1);
  595. 	}
  596.  
  597. 	//------------------------------
  598. 	// Load jquery UI and the appropriate CSS based on location.
  599. 	//------------------------------
  600. 	var css_url = wkof.support_files['jqui_wkmain.css'];
  601.  
  602. 	wkof.ready('document')
  603. 	.then(function(){
  604. 		return Promise.all([
  605. 			wkof.load_script(wkof.support_files['jquery_ui.js'], true /* cache */),
  606. 			wkof.load_css(css_url, true /* cache */)
  607. 		]);
  608. 	})
  609. 	.then(function(data){
  610. 		ready = true;
  611.  
  612. 		// Workaround...  https://community.wanikani.com/t/19984/55
  613. 		delete $.fn.autocomplete;
  614.  
  615. 		// Notify listeners that we are ready.
  616. 		// Delay guarantees include() callbacks are called before ready() callbacks.
  617. 		setTimeout(function(){wkof.set_state('wkof.Settings', 'ready');},0);
  618. 	});
  619.  
  620. })(this);