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Wanikani Open Framework

Framework for writing scripts for Wanikani

  1. // ==UserScript==
  2. // @name        Wanikani Open Framework
  3. // @namespace   rfindley
  4. // @description Framework for writing scripts for Wanikani
  5. // @version     1.2.10
  6. // @match       https://www.wanikani.com/*
  7. // @match       https://preview.wanikani.com/*
  8. // @copyright   2018-2024, Robin Findley
  9. // @license     MIT; http://opensource.org/licenses/MIT
  10. // @run-at      document-start
  11. // @grant       none
  12. // ==/UserScript==
  13.  
  14. (function(global) {
  15. 	'use strict';
  16.  
  17. 	/* eslint no-multi-spaces: off */
  18. 	/* globals wkof */
  19.  
  20. 	const version = '1.2.10';
  21. 	let ignore_missing_indexeddb = false;
  22.  
  23. 	//########################################################################
  24. 	//------------------------------
  25. 	// Supported Modules
  26. 	//------------------------------
  27. 	const supported_modules = {
  28. 		Apiv2:    { url: 'https://update.greasyfork.org/scripts/38581/1402158/Wanikani%20Open%20Framework%20-%20Apiv2%20module.js'},
  29. 		ItemData: { url: 'https://update.greasyfork.org/scripts/38580/1187212/Wanikani%20Open%20Framework%20-%20ItemData%20module.js'},
  30. 		Jquery:   { url: 'https://update.greasyfork.org/scripts/451078/1091794/Wanikani%20Open%20Framework%20-%20Jquery%20module.js'},
  31. 		Menu:     { url: 'https://update.greasyfork.org/scripts/38578/1489081/Wanikani%20Open%20Framework%20-%20Menu%20module.js'},
  32. 		Progress: { url: 'https://update.greasyfork.org/scripts/38577/1091792/Wanikani%20Open%20Framework%20-%20Progress%20module.js'},
  33. 		Settings: { url: 'https://update.greasyfork.org/scripts/38576/1091793/Wanikani%20Open%20Framework%20-%20Settings%20module.js'},
  34. 	};
  35.  
  36. 	//########################################################################
  37. 	//------------------------------
  38. 	// Published interface
  39. 	//------------------------------
  40. 	const published_interface = {
  41. 		on_pageload: on_pageload,      // on_pageload(urls, load_handler [, unload_handler])
  42.  
  43. 		include: include,              // include(module_list)        => Promise
  44. 		ready:   ready,                // ready(module_list)          => Promise
  45.  
  46. 		load_file:   load_file,        // load_file(url, use_cache)   => Promise
  47. 		load_css:    load_css,         // load_css(url, use_cache)    => Promise
  48. 		load_script: load_script,      // load_script(url, use_cache) => Promise
  49.  
  50. 		file_cache: {
  51. 			dir:    {},                // Object containing directory of files.
  52. 			ls:     file_cache_list,   // ls()
  53. 			clear:  file_cache_clear,  // clear()             => Promise
  54. 			delete: file_cache_delete, // delete(name)        => Promise
  55. 			flush:  file_cache_flush,  // flush()             => Promise
  56. 			load:   file_cache_load,   // load(name)          => Promise
  57. 			save:   file_cache_save,   // save(name, content) => Promise
  58. 			no_cache:file_nocache,     // no_cache(modules)
  59. 		},
  60.  
  61. 		on:      wait_event,           // on(event, callback)
  62. 		trigger: trigger_event,        // trigger(event[, data1[, data2[, ...]]])
  63.  
  64. 		get_state:  get_state,         // get(state_var)
  65. 		set_state:  set_state,         // set(state_var, value)
  66. 		wait_state: wait_state,        // wait(state_var, value[, callback[, persistent]]) => if no callback, return one-shot Promise
  67.  
  68. 		version: {
  69. 			value: version,
  70. 			compare_to: compare_to,    // compare_version(version)
  71. 		}
  72. 	};
  73.  
  74. 	published_interface.support_files = {
  75. 		'jquery.js': 'https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js',
  76. 		'jquery_ui.js': 'https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js',
  77. 		'jqui_wkmain.css': 'https://raw.githubusercontent.com/rfindley/wanikani-open-framework/1550af8383ec28ad406cf401aee2de4c52446f6c/jqui-wkmain.css',
  78. 	};
  79.  
  80. 	//########################################################################
  81.  
  82. 	function split_list(str) {return str.replace(/、/g,',').replace(/[\s　]+/g,' ').trim().replace(/ *, */g, ',').split(',').filter(function(name) {return (name.length > 0);});}
  83. 	function promise(){let a,b,c=new Promise(function(d,e){a=d;b=e;});c.resolve=a;c.reject=b;return c;}
  84.  
  85. 	//########################################################################
  86.  
  87. 	//------------------------------
  88. 	// Compare the framework version against a specific version.
  89. 	//------------------------------
  90. 	function compare_to(client_version) {
  91. 		let client_ver = client_version.split('.').map(d => Number(d));
  92. 		let wkof_ver = version.split('.').map(d => Number(d));
  93. 		let len = Math.max(client_ver.length, wkof_ver.length);
  94. 		for (let idx = 0; idx < len; idx++) {
  95. 			let a = client_ver[idx] || 0;
  96. 			let b = wkof_ver[idx] || 0;
  97. 			if (a === b) continue;
  98. 			if (a < b) return 'newer';
  99. 			return 'older';
  100. 		}
  101. 		return 'same';
  102. 	}
  103.  
  104. 	//------------------------------
  105. 	// Include a list of modules.
  106. 	//------------------------------
  107. 	let include_promises = {};
  108.  
  109. 	function include(module_list) {
  110. 		if (wkof.get_state('wkof.wkof') !== 'ready') {
  111. 			return wkof.ready('wkof').then(function(){return wkof.include(module_list);});
  112. 		}
  113. 		let include_promise = promise();
  114. 		let module_names = split_list(module_list);
  115. 		let script_cnt = module_names.length;
  116. 		if (script_cnt === 0) {
  117. 			include_promise.resolve({loaded:[], failed:[]});
  118. 			return include_promise;
  119. 		}
  120.  
  121. 		let done_cnt = 0;
  122. 		let loaded = [], failed = [];
  123. 		let no_cache = split_list(localStorage.getItem('wkof.include.nocache') || '');
  124. 		for (let idx = 0; idx < module_names.length; idx++) {
  125. 			let module_name = module_names[idx];
  126. 			let module = supported_modules[module_name];
  127. 			if (!module) {
  128. 				failed.push({name:module_name, url:undefined});
  129. 				check_done();
  130. 				continue;
  131. 			}
  132. 			let await_load = include_promises[module_name];
  133. 			let use_cache = (no_cache.indexOf(module_name) < 0) && (no_cache.indexOf('*') < 0);
  134. 			if (!use_cache) file_cache_delete(module.url);
  135. 			if (await_load === undefined) include_promises[module_name] = await_load = load_script(module.url, use_cache);
  136. 			await_load.then(push_loaded, push_failed);
  137. 		}
  138.  
  139. 		return include_promise;
  140.  
  141. 		function push_loaded(url) {
  142. 			loaded.push(url);
  143. 			check_done();
  144. 		}
  145.  
  146. 		function push_failed(url) {
  147. 			failed.push(url);
  148. 			check_done();
  149. 		}
  150.  
  151. 		function check_done() {
  152. 			if (++done_cnt < script_cnt) return;
  153. 			if (failed.length === 0) include_promise.resolve({loaded:loaded, failed:failed});
  154. 			else include_promise.reject({error:'Failure loading module', loaded:loaded, failed:failed});
  155. 		}
  156. 	}
  157.  
  158. 	//------------------------------
  159. 	// Wait for all modules to report that they are ready
  160. 	//------------------------------
  161. 	function ready(module_list) {
  162. 		let module_names = split_list(module_list);
  163.  
  164. 		let ready_promises = [ ];
  165. 		for (let idx in module_names) {
  166. 			let module_name = module_names[idx];
  167. 			ready_promises.push(wait_state('wkof.' + module_name, 'ready'));
  168. 		}
  169.  
  170. 		if (ready_promises.length === 0) {
  171. 			return Promise.resolve();
  172. 		} else if (ready_promises.length === 1) {
  173. 			return ready_promises[0];
  174. 		} else {
  175. 			return Promise.all(ready_promises);
  176. 		}
  177. 	}
  178. 	//########################################################################
  179.  
  180. 	//------------------------------
  181. 	// Load a file asynchronously, and pass the file as resolved Promise data.
  182. 	//------------------------------
  183. 	function load_file(url, use_cache) {
  184. 		let fetch_promise = promise();
  185. 		let no_cache = split_list(localStorage.getItem('wkof.load_file.nocache') || '');
  186. 		if (no_cache.indexOf(url) >= 0 || no_cache.indexOf('*') >= 0) use_cache = false;
  187. 		if (use_cache === true) {
  188. 			return file_cache_load(url, use_cache).catch(fetch_url);
  189. 		} else {
  190. 			return fetch_url();
  191. 		}
  192.  
  193. 		// Retrieve file from server
  194. 		function fetch_url(){
  195. 			let request = new XMLHttpRequest();
  196. 			request.onreadystatechange = process_result;
  197. 			request.open('GET', url, true);
  198. 			request.send();
  199. 			return fetch_promise;
  200. 		}
  201.  
  202. 		function process_result(event){
  203. 			if (event.target.readyState !== 4) return;
  204. 			if (event.target.status >= 400 || event.target.status === 0) return fetch_promise.reject(event.target.status);
  205. 			if (use_cache) {
  206. 				file_cache_save(url, event.target.response)
  207. 				.then(fetch_promise.resolve.bind(null,event.target.response));
  208. 			} else {
  209. 				fetch_promise.resolve(event.target.response);
  210. 			}
  211. 		}
  212. 	}
  213.  
  214. 	//------------------------------
  215. 	// Load and install a specific file type into the DOM.
  216. 	//------------------------------
  217. 	function load_and_append(url, tag_name, location, use_cache) {
  218. 		url = url.replace(/"/g,'\'');
  219. 		if (document.querySelector(tag_name+'[uid="'+url+'"]') !== null) return Promise.resolve();
  220. 		return load_file(url, use_cache).then(append_to_tag);
  221.  
  222. 		function append_to_tag(content) {
  223. 			let tag = document.createElement(tag_name);
  224. 			tag.innerHTML = content;
  225. 			tag.setAttribute('uid', url);
  226. 			document.querySelector(location).appendChild(tag);
  227. 			return url;
  228. 		}
  229. 	}
  230.  
  231. 	//------------------------------
  232. 	// Load and install a CSS file.
  233. 	//------------------------------
  234. 	function load_css(url, use_cache) {
  235. 		return load_and_append(url, 'style', 'head', use_cache);
  236. 	}
  237.  
  238. 	//------------------------------
  239. 	// Load and install Javascript.
  240. 	//------------------------------
  241. 	function load_script(url, use_cache) {
  242. 		return load_and_append(url, 'script', 'head', use_cache);
  243. 	}
  244. 	//########################################################################
  245.  
  246. 	let state_listeners = {};
  247. 	let state_values = {};
  248.  
  249. 	//------------------------------
  250. 	// Get the value of a state variable, and notify listeners.
  251. 	//------------------------------
  252. 	function get_state(state_var) {
  253. 		return state_values[state_var];
  254. 	}
  255.  
  256. 	//------------------------------
  257. 	// Set the value of a state variable, and notify listeners.
  258. 	//------------------------------
  259. 	function set_state(state_var, value) {
  260. 		let old_value = state_values[state_var];
  261. 		if (old_value === value) return;
  262. 		state_values[state_var] = value;
  263.  
  264. 		// Do listener callbacks, and remove non-persistent listeners
  265. 		let listeners = state_listeners[state_var];
  266. 		let persistent_listeners = [ ];
  267. 		for (let idx in listeners) {
  268. 			let listener = listeners[idx];
  269. 			let keep = true;
  270. 			if (listener.value === value || listener.value === '*') {
  271. 				keep = listener.persistent;
  272. 				try {
  273. 					listener.callback(value, old_value);
  274. 				} catch (e) {}
  275. 			}
  276. 			if (keep) persistent_listeners.push(listener);
  277. 		}
  278. 		state_listeners[state_var] = persistent_listeners;
  279. 	}
  280.  
  281. 	//------------------------------
  282. 	// When state of state_var changes to value, call callback.
  283. 	// If persistent === true, continue listening for additional state changes
  284. 	// If value is '*', callback will be called for all state changes.
  285. 	//------------------------------
  286. 	function wait_state(state_var, value, callback, persistent) {
  287. 		let promise;
  288. 		if (callback === undefined) {
  289. 			promise = new Promise(function(resolve, reject) {
  290. 				callback = resolve;
  291. 			});
  292. 		}
  293. 		if (state_listeners[state_var] === undefined) state_listeners[state_var] = [ ];
  294. 		persistent = (persistent === true);
  295. 		let current_value = state_values[state_var];
  296. 		if (persistent || value !== current_value) state_listeners[state_var].push({callback:callback, persistent:persistent, value:value});
  297.  
  298. 		// If it's already at the desired state, call the callback immediately.
  299. 		if (value === current_value) {
  300. 			try {
  301. 				callback(value, current_value);
  302. 			} catch (err) {}
  303. 		}
  304. 		return promise;
  305. 	}
  306. 	//########################################################################
  307.  
  308. 	let event_listeners = {};
  309.  
  310. 	//------------------------------
  311. 	// Fire an event, which then calls callbacks for any listeners.
  312. 	//------------------------------
  313. 	function trigger_event(event) {
  314. 		let listeners = event_listeners[event];
  315. 		if (listeners === undefined) return;
  316. 		let args = [];
  317. 		Array.prototype.push.apply(args,arguments);
  318. 		args.shift();
  319. 		for (let idx in listeners) { try {
  320. 			listeners[idx].apply(null,args);
  321. 		} catch (err) {} }
  322. 		return global.wkof;
  323. 	}
  324.  
  325. 	//------------------------------
  326. 	// Add a listener for an event.
  327. 	//------------------------------
  328. 	function wait_event(event, callback) {
  329. 		if (event_listeners[event] === undefined) event_listeners[event] = [];
  330. 		event_listeners[event].push(callback);
  331. 		return global.wkof;
  332. 	}
  333.  
  334. 	//------------------------------
  335. 	// Add handlers for page load events for a list of URLs.
  336. 	//------------------------------
  337. 	let regex_store = {};
  338. 	let pgld_req_store = [];
  339. 	let current_page = '!';
  340. 	function on_pageload(url_patterns, load_handler, unload_handler) {
  341. 		if (!Array.isArray(url_patterns)) url_patterns = [url_patterns];
  342.  
  343. 		let pgld_req = {url_patterns, load_handler, unload_handler, pattern_idx:-1, next_pattern_idx:-1};
  344. 		pgld_req_store.push(pgld_req);
  345.  
  346. 		url_patterns.forEach((pattern, pattern_idx) => {
  347. 			let regex;
  348. 			if (typeof pattern === 'string') {
  349. 				regex = new RegExp('^'+pattern.replace(/[.+?^${}()|[\]\\]/g,'\\$&').replaceAll('*','.*')+'$');
  350. 			} else if (pattern instanceof RegExp) {
  351. 				regex = pattern;
  352. 			} else {
  353. 				return;
  354. 			}
  355.  
  356. 			let regex_str = regex.toString();
  357. 			let regex_entry;
  358. 			if (!regex_store[regex_str]) {
  359. 				regex_store[regex_str] = regex_entry = {regex, pgld_reqs:[]};
  360. 			} else {
  361. 				regex_entry = regex_store[regex_str];
  362. 				regex = regex_entry.regex;
  363. 			}
  364. 			regex_entry.pgld_reqs.push({pgld_req, pattern_idx});
  365.  
  366. 			// Call 'load' callback now if the current URL matches.
  367. 			if (pgld_req.pattern_idx !== -1) return;
  368. 			if (regex.test(current_page)) {
  369. 				pgld_req.pattern_idx = pattern_idx;
  370. 				try {
  371. 					load_handler(current_page, pattern_idx);
  372. 				} catch(e) {}
  373. 			}
  374. 		});
  375. 	}
  376.  
  377. 	//------------------------------
  378. 	// Call pageload handlers.
  379. 	//------------------------------
  380. 	function handle_pageload(event) {
  381. 		let last_page = current_page;
  382. 		if (event) {
  383. 			current_page = (new URL(event.detail.url)).pathname;
  384. 		} else {
  385. 			current_page = window.location.pathname;
  386. 		}
  387.  
  388. 		// Update the active status of all monitored URL patterns.
  389. 		Object.keys(regex_store).forEach((key, key_idx) => {
  390. 			let regex_entry = regex_store[key];
  391. 			let is_active = regex_entry.regex.test(current_page);
  392. 			regex_entry.pgld_reqs.forEach((regex_pgld_entry, regex_pgld_entry_idx) => {
  393. 				if (regex_pgld_entry.pgld_req.next_pattern_idx === -1 && is_active) {
  394. 					regex_pgld_entry.pgld_req.next_pattern_idx = regex_pgld_entry.pattern_idx;
  395. 				}
  396. 			});
  397. 		});
  398.  
  399. 		// Call all 'unload' handlers.
  400. 		pgld_req_store.forEach(pgld_req => {
  401. 			// If page was active, but not anymore, call the unload handler
  402. 			if ((pgld_req.pattern_idx !== -1) && (pgld_req.next_pattern_idx === -1)) {
  403. 				try {
  404. 					pgld_req.unload_handler(last_page, pgld_req.pattern_idx);
  405. 				} catch(e) {}
  406. 			}
  407. 			pgld_req.pattern_idx = pgld_req.next_pattern_idx;
  408. 			pgld_req.next_pattern_idx = -1;
  409. 		});
  410.  
  411. 		// Call all 'load' handlers.
  412. 		pgld_req_store.forEach(pgld_req => {
  413. 			if (pgld_req.pattern_idx !== -1) {
  414. 				try {
  415. 					pgld_req.load_handler(current_page, pgld_req.pattern_idx);
  416. 				} catch(e) {}
  417. 			}
  418. 		});
  419. 	}
  420.  
  421. 	let first_pageload = true;
  422. 	let skip_turbo_load = null;
  423. 	function delayed_pageload(event) {
  424. 		if (!event) { // If 'doc ready'
  425. 			if (!first_pageload) return; // Shouldn't happen, but just in case...
  426. 			skip_turbo_load = location.href.replace(/#.*/g,'');
  427. 		} else { // If 'turbo:load'
  428. 			if (skip_turbo_load === event.detail.url) {
  429. 				skip_turbo_load = null;
  430. 				return;
  431. 			}
  432. 			skip_turbo_load = null;
  433. 		}
  434. 		first_pageload = false;
  435. 		setTimeout(handle_pageload.bind(null, event), 10);
  436. 	}
  437.  
  438. 	//########################################################################
  439.  
  440. 	let file_cache_open_promise;
  441.  
  442. 	//------------------------------
  443. 	// Open the file_cache database (or return handle if open).
  444. 	//------------------------------
  445. 	function file_cache_open() {
  446. 		if (file_cache_open_promise) return file_cache_open_promise;
  447. 		let open_promise = promise();
  448. 		file_cache_open_promise = open_promise;
  449. 		let request;
  450. 		request = indexedDB.open('wkof.file_cache');
  451. 		request.onupgradeneeded = upgrade_db;
  452. 		request.onsuccess = get_dir;
  453. 		request.onerror = error;
  454. 		return open_promise;
  455.  
  456. 		function error() {
  457. 			console.log('indexedDB could not open!');
  458. 			wkof.file_cache.dir = {};
  459. 			if (ignore_missing_indexeddb) {
  460. 				open_promise.resolve(null);
  461. 			} else {
  462. 				open_promise.reject();
  463. 			}
  464. 		}
  465.  
  466. 		function upgrade_db(event){
  467. 			let db = event.target.result;
  468. 			let store = db.createObjectStore('files', {keyPath:'name'});
  469. 		}
  470.  
  471. 		function get_dir(event){
  472. 			let db = event.target.result;
  473. 			let transaction = db.transaction('files', 'readonly');
  474. 			let store = transaction.objectStore('files');
  475. 			let request = store.get('[dir]');
  476. 			request.onsuccess = process_dir;
  477. 			transaction.oncomplete = open_promise.resolve.bind(null, db);
  478. 			open_promise.then(setTimeout.bind(null, file_cache_cleanup, 10000));
  479. 		}
  480.  
  481. 		function process_dir(event){
  482. 			if (event.target.result === undefined) {
  483. 				wkof.file_cache.dir = {};
  484. 			} else {
  485. 				wkof.file_cache.dir = JSON.parse(event.target.result.content);
  486. 			}
  487. 		}
  488. 	}
  489.  
  490. 	//------------------------------
  491. 	// Lists the content of the file_cache.
  492. 	//------------------------------
  493. 	function file_cache_list() {
  494. 		console.log(Object.keys(wkof.file_cache.dir).sort().join('\n'));
  495. 	}
  496.  
  497. 	//------------------------------
  498. 	// Clear the file_cache database.
  499. 	//------------------------------
  500. 	function file_cache_clear() {
  501. 		return file_cache_open().then(clear);
  502.  
  503. 		function clear(db) {
  504. 			let clear_promise = promise();
  505. 			wkof.file_cache.dir = {};
  506. 			if (db === null) return clear_promise.resolve();
  507. 			let transaction = db.transaction('files', 'readwrite');
  508. 			let store = transaction.objectStore('files');
  509. 			store.clear();
  510. 			transaction.oncomplete = clear_promise.resolve;
  511. 		}
  512. 	}
  513.  
  514. 	//------------------------------
  515. 	// Delete a file from the file_cache database.
  516. 	//------------------------------
  517. 	function file_cache_delete(pattern) {
  518. 		return file_cache_open().then(del);
  519.  
  520. 		function del(db) {
  521. 			let del_promise = promise();
  522. 			if (db === null) return del_promise.resolve();
  523. 			let transaction = db.transaction('files', 'readwrite');
  524. 			let store = transaction.objectStore('files');
  525. 			let files = Object.keys(wkof.file_cache.dir).filter(function(file){
  526. 				if (pattern instanceof RegExp) {
  527. 					return file.match(pattern) !== null;
  528. 				} else {
  529. 					return (file === pattern);
  530. 				}
  531. 			});
  532. 			files.forEach(function(file){
  533. 				store.delete(file);
  534. 				delete wkof.file_cache.dir[file];
  535. 			});
  536. 			file_cache_dir_save();
  537. 			transaction.oncomplete = del_promise.resolve.bind(null, files);
  538. 			return del_promise;
  539. 		}
  540. 	}
  541.  
  542. 	//------------------------------
  543. 	// Force immediate save of file_cache directory.
  544. 	//------------------------------
  545. 	function file_cache_flush() {
  546. 		file_cache_dir_save(true /* immediately */);
  547. 	}
  548.  
  549. 	//------------------------------
  550. 	// Load a file from the file_cache database.
  551. 	//------------------------------
  552. 	function file_cache_load(name) {
  553. 		let load_promise = promise();
  554. 		return file_cache_open().then(load);
  555.  
  556. 		function load(db) {
  557. 			if (wkof.file_cache.dir[name] === undefined) {
  558. 				load_promise.reject(name);
  559. 				return load_promise;
  560. 			}
  561. 			let transaction = db.transaction('files', 'readonly');
  562. 			let store = transaction.objectStore('files');
  563. 			let request = store.get(name);
  564. 			wkof.file_cache.dir[name].last_loaded = new Date().toISOString();
  565. 			file_cache_dir_save();
  566. 			request.onsuccess = finish;
  567. 			request.onerror = error;
  568. 			return load_promise;
  569.  
  570. 			function finish(event){
  571. 				if (event.target.result === undefined || event.target.result === null) {
  572. 					load_promise.reject(name);
  573. 				} else {
  574. 					load_promise.resolve(event.target.result.content);
  575. 				}
  576. 			}
  577.  
  578. 			function error(event){
  579. 				load_promise.reject(name);
  580. 			}
  581. 		}
  582. 	}
  583.  
  584. 	//------------------------------
  585. 	// Save a file into the file_cache database.
  586. 	//------------------------------
  587. 	function file_cache_save(name, content, extra_attribs) {
  588. 		return file_cache_open().then(save);
  589.  
  590. 		function save(db) {
  591. 			let save_promise = promise();
  592. 			if (db === null) return save_promise.resolve(name);
  593. 			let transaction = db.transaction('files', 'readwrite');
  594. 			let store = transaction.objectStore('files');
  595. 			store.put({name:name,content:content});
  596. 			let now = new Date().toISOString();
  597. 			wkof.file_cache.dir[name] = Object.assign({added:now, last_loaded:now}, extra_attribs);
  598. 			file_cache_dir_save(true /* immediately */);
  599. 			transaction.oncomplete = save_promise.resolve.bind(null, name);
  600. 		}
  601. 	}
  602.  
  603. 	//------------------------------
  604. 	// Save a the file_cache directory contents.
  605. 	//------------------------------
  606. 	let fc_sync_timer;
  607. 	function file_cache_dir_save(immediately) {
  608. 		if (fc_sync_timer !== undefined) clearTimeout(fc_sync_timer);
  609. 		let delay = (immediately ? 0 : 2000);
  610. 		fc_sync_timer = setTimeout(save, delay);
  611.  
  612. 		function save(){
  613. 			file_cache_open().then(save2);
  614. 		}
  615.  
  616. 		function save2(db){
  617. 			fc_sync_timer = undefined;
  618. 			let transaction = db.transaction('files', 'readwrite');
  619. 			let store = transaction.objectStore('files');
  620. 			store.put({name:'[dir]',content:JSON.stringify(wkof.file_cache.dir)});
  621. 		}
  622. 	}
  623.  
  624. 	//------------------------------
  625. 	// Remove files that haven't been accessed in a while.
  626. 	//------------------------------
  627. 	function file_cache_cleanup() {
  628. 		let threshold = new Date() - 14*86400000; // 14 days
  629. 		let old_files = [];
  630. 		for (var fname in wkof.file_cache.dir) {
  631. 			if (fname.match(/^wkof\.settings\./)) continue; // Don't flush settings files.
  632. 			let fdate = new Date(wkof.file_cache.dir[fname].last_loaded);
  633. 			if (fdate < threshold) old_files.push(fname);
  634. 		}
  635. 		if (old_files.length === 0) return;
  636. 		console.log('Cleaning out '+old_files.length+' old file(s) from "wkof.file_cache":');
  637. 		for (let fnum in old_files) {
  638. 			console.log('  '+(Number(fnum)+1)+': '+old_files[fnum]);
  639. 			wkof.file_cache.delete(old_files[fnum]);
  640. 		}
  641. 	}
  642.  
  643. 	//------------------------------
  644. 	// Process no-cache requests.
  645. 	//------------------------------
  646. 	function file_nocache(list) {
  647. 		if (list === undefined) {
  648. 			list = split_list(localStorage.getItem('wkof.include.nocache') || '');
  649. 			list = list.concat(split_list(localStorage.getItem('wkof.load_file.nocache') || ''));
  650. 			console.log(list.join(','));
  651. 		} else if (typeof list === 'string') {
  652. 			let no_cache = split_list(list);
  653. 			let idx, modules = [], urls = [];
  654. 			for (idx = 0; idx < no_cache.length; idx++) {
  655. 				let item = no_cache[idx];
  656. 				if (supported_modules[item] !== undefined) {
  657. 					modules.push(item);
  658. 				} else {
  659. 					urls.push(item);
  660. 				}
  661. 			}
  662. 			console.log('Modules: '+modules.join(','));
  663. 			console.log('   URLs: '+urls.join(','));
  664. 			localStorage.setItem('wkof.include.nocache', modules.join(','));
  665. 			localStorage.setItem('wkof.load_file.nocache', urls.join(','));
  666. 		}
  667. 	}
  668.  
  669. 	function doc_ready() {
  670. 		wkof.set_state('wkof.document', 'ready');
  671. 	}
  672.  
  673. 	//########################################################################
  674. 	// Bootloader Startup
  675. 	//------------------------------
  676. 	function startup() {
  677. 		global.wkof = published_interface;
  678.  
  679. 		// Handle page-loading/unloading events.
  680. 		function install_load_listener() {
  681. 			if (!document.documentElement) {
  682. 				setTimeout(install_load_listener, 10);
  683. 				return;
  684. 			}
  685. 			document.documentElement.addEventListener('turbo:load', delayed_pageload);
  686. 		}
  687. 		install_load_listener();
  688.  
  689. 		ready('document').then((e) => {
  690. 			if (first_pageload) delayed_pageload();
  691. 		});
  692.  
  693. 		// Mark document state as 'ready'.
  694. 		if (document.readyState === 'complete') {
  695. 			doc_ready();
  696. 		} else {
  697. 			window.addEventListener("load", doc_ready, false);  // Notify listeners that we are ready.
  698. 		}
  699.  
  700. 		// Open cache, so wkof.file_cache.dir is available to console immediately.
  701. 		file_cache_open();
  702. 		wkof.set_state('wkof.wkof', 'ready');
  703. 	}
  704. 	startup();
  705.  
  706. })(window);
  707.