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  1. // Copyright (c) 2013 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4.  
  5. function pointInElement(p, elem) {
  6. return ((p.x >= elem.offsetLeft) &&
  7. (p.x <= (elem.offsetLeft + elem.offsetWidth)) &&
  8. (p.y >= elem.offsetTop) &&
  9. (p.y <= (elem.offsetTop + elem.offsetHeight)));
  10. };
  11.  
  12. function setLastOpened() {
  13.  
  14. chrome.runtime.sendMessage('poll');
  15. };
  16.  
  17. function loadI18nMessages() {
  18. function setProperty(selector, prop, msg) {
  19. document.querySelector(selector)[prop] = chrome.i18n.getMessage(msg);
  20. }
  21.  
  22. setProperty('title', 'innerText', 'tabTitle');
  23. setProperty('#q', 'placeholder', 'searchPlaceholder');
  24. setProperty('#clear-all', 'title', 'clearAllTitle');
  25. setProperty('#open-folder', 'title', 'openDownloadsFolderTitle');
  26. setProperty('#empty', 'innerText', 'zeroItems');
  27. setProperty('#searching', 'innerText', 'searching');
  28. setProperty('#search-zero', 'innerText', 'zeroSearchResults');
  29. setProperty('#management-permission-info', 'innerText',
  30. 'managementPermissionInfo');
  31. setProperty('#grant-management-permission', 'innerText',
  32. 'grantManagementPermission');
  33. setProperty('#older', 'innerText', 'showOlderDownloads');
  34. setProperty('#loading-older', 'innerText', 'loadingOlderDownloads');
  35. setProperty('.pause', 'title', 'pauseTitle');
  36. setProperty('.resume', 'title', 'resumeTitle');
  37. setProperty('.cancel', 'title', 'cancelTitle');
  38. setProperty('.show-folder', 'title', 'showInFolderTitle');
  39. setProperty('.erase', 'title', 'eraseTitle');
  40. setProperty('.url', 'title', 'retryTitle');
  41. setProperty('.referrer', 'title', 'referrerTitle');
  42. setProperty('.open-filename', 'title', 'openTitle');
  43. setProperty('#bad-chrome-version', 'innerText', 'badChromeVersion');
  44. setProperty('.remove-file', 'title', 'removeFileTitle');
  45.  
  46. document.querySelector('.progress').style.minWidth =
  47. getTextWidth(formatBytes(1024 * 1024 * 1023.9) + '/' +
  48. formatBytes(1024 * 1024 * 1023.9)) + 'px';
  49.  
  50. // This only covers {timeLeft,openWhenComplete}{Finishing,Days}. If
  51. // ...Hours/Minutes/Seconds could be longer for any locale, then this should
  52. // test them.
  53. var max_time_left_width = 0;
  54. for (var i = 0; i < 4; ++i) {
  55. max_time_left_width = Math.max(max_time_left_width, getTextWidth(
  56. formatTimeLeft(0 == (i % 2),
  57. (i < 2) ? 0 : ((100 * 24) + 23) * 60 * 60 * 1000)));
  58. }
  59. document.querySelector('body div.item span.time-left').style.minWidth =
  60. max_time_left_width + 'px';
  61. };
  62.  
  63. function getTextWidth(s) {
  64. var probe = document.getElementById('text-width-probe');
  65. probe.innerText = s;
  66. return probe.offsetWidth;
  67. };
  68.  
  69. function formatDateTime(date) {
  70. var now = new Date();
  71. var zpad_mins = ':' + (date.getMinutes() < 10 ? '0' : '') + date.getMinutes();
  72. if (date.getYear() != now.getYear()) {
  73. return '' + (1900 + date.getYear());
  74. } else if ((date.getMonth() != now.getMonth()) ||
  75. (date.getDate() != now.getDate())) {
  76. return date.getDate() + ' ' + chrome.i18n.getMessage(
  77. 'month' + date.getMonth() + 'abbr');
  78. } else if (date.getHours() == 12) {
  79. return '12' + zpad_mins + 'pm';
  80. } else if (date.getHours() > 12) {
  81. return (date.getHours() - 12) + zpad_mins + 'pm';
  82. }
  83. return date.getHours() + zpad_mins + 'am';
  84. }
  85.  
  86. function formatBytes(n) {
  87. if (n < 1024) {
  88. return n + 'B';
  89. }
  90. var prefixes = 'KMGTPEZY';
  91. var mul = 1024;
  92. for (var i = 0; i < prefixes.length; ++i) {
  93. if (n < (1024 * mul)) {
  94. return (parseInt(n / mul) + '.' + parseInt(10 * ((n / mul) % 1)) +
  95. prefixes[i] + 'B');
  96. }
  97. mul *= 1024;
  98. }
  99. return '!!!';
  100. }
  101.  
  102.  
  103. function formatTimeLeft(openWhenComplete, ms) {
  104. var prefix = openWhenComplete ? 'openWhenComplete' : 'timeLeft';
  105. if (ms < 1000) {
  106. return chrome.i18n.getMessage(prefix + 'Finishing');
  107. }
  108. var days = parseInt(ms / (24 * 60 * 60 * 1000));
  109. var hours = parseInt(ms / (60 * 60 * 1000)) % 24;
  110. if (days) {
  111. return chrome.i18n.getMessage(prefix + 'Days', [days, hours]);
  112. }
  113. var minutes = parseInt(ms / (60 * 1000)) % 60;
  114. if (hours) {
  115. return chrome.i18n.getMessage(prefix + 'Hours', [hours, minutes]);
  116. }
  117. var seconds = parseInt(ms / 1000) % 60;
  118. if (minutes) {
  119. return chrome.i18n.getMessage(prefix + 'Minutes', [minutes, seconds]);
  120. }
  121. return chrome.i18n.getMessage(prefix + 'Seconds', [seconds]);
  122. }
  123.  
  124.  
  125.  
  126. function ratchetWidth(w) {
  127. var current = parseInt(document.body.style.minWidth) || 0;
  128. document.body.style.minWidth = Math.max(w, current) + 'px';
  129. }
  130.  
  131. function ratchetHeight(h) {
  132. var current = parseInt(document.body.style.minHeight) || 0;
  133. document.body.style.minHeight = Math.max(h, current) + 'px';
  134. }
  135.  
  136. function binarySearch(array, target, cmp) {
  137. var low = 0, high = array.length - 1, i, comparison;
  138. while (low <= high) {
  139. i = (low + high) >> 1;
  140. comparison = cmp(target, array[i]);
  141. if (comparison < 0) {
  142. low = i + 1;
  143. } else if (comparison > 0) {
  144. high = i - 1;
  145. } else {
  146. return i;
  147. }
  148. }
  149. return i;
  150. };
  151.  
  152. function arrayFrom(seq) {
  153. return Array.prototype.slice.apply(seq);
  154. };
  155.  
  156. function DownloadItem(data) {
  157. var item = this;
  158. for (var prop in data) {
  159. item[prop] = data[prop];
  160. }
  161. item.startTime = new Date(item.startTime);
  162.  
  163. if (item.canResume == undefined) {
  164. DownloadItem.canResumeHack = true;
  165. }
  166.  
  167. item.div = document.querySelector('body>div.item').cloneNode(true);
  168. item.div.id = 'item' + item.id;
  169. item.div.item = item;
  170.  
  171. var items_div = document.getElementById('items');
  172. if ((items_div.childNodes.length == 0) ||
  173. (item.startTime.getTime() < items_div.childNodes[
  174. items_div.childNodes.length - 1].item.startTime.getTime())) {
  175. items_div.appendChild(item.div);
  176. } else if (item.startTime.getTime() >
  177. items_div.childNodes[0].item.startTime.getTime()) {
  178. items_div.insertBefore(item.div, items_div.childNodes[0]);
  179. } else {
  180. var adjacent_div = items_div.childNodes[
  181. binarySearch(arrayFrom(items_div.childNodes),
  182. item.startTime.getTime(),
  183. function(target, other) {
  184. return target - other.item.startTime.getTime();
  185. })];
  186. var adjacent_item = adjacent_div.item;
  187. if (adjacent_item.startTime.getTime() < item.startTime.getTime()) {
  188. items_div.insertBefore(item.div, adjacent_div);
  189. } else {
  190. items_div.insertBefore(item.div, adjacent_div.nextSibling);
  191. }
  192. }
  193.  
  194. item.getElement('referrer').onclick = function() {
  195. chrome.tabs.create({url: item.referrer});
  196. return false;
  197. };
  198. item.getElement('by-ext').onclick = function() {
  199. chrome.tabs.create({url: 'chrome://extensions#' + item.byExtensionId});
  200. return false;
  201. }
  202. item.getElement('open-filename').onclick = function() {
  203. item.open();
  204. return false;
  205. };
  206. item.getElement('open-filename').ondragstart = function() {
  207. item.drag();
  208. return false;
  209. };
  210. item.getElement('pause').onclick = function() {
  211. item.pause();
  212. return false;
  213. };
  214. item.getElement('cancel').onclick = function() {
  215. item.cancel();
  216. return false;
  217. };
  218. item.getElement('resume').onclick = function() {
  219. item.resume();
  220. return false;
  221. };
  222. item.getElement('show-folder').onclick = function() {
  223. item.show();
  224. return false;
  225. };
  226. item.getElement('remove-file').onclick = function() {
  227. item.removeFile();
  228. return false;
  229. };
  230. item.getElement('erase').onclick = function() {
  231. item.erase();
  232. return false;
  233. };
  234.  
  235. item.more_mousemove = function(evt) {
  236. var mouse = {x:evt.x, y:evt.y+document.body.scrollTop};
  237. if (item.getElement('more') &&
  238. (pointInElement(mouse, item.div) ||
  239. pointInElement(mouse, item.getElement('more')))) {
  240. return;
  241. }
  242. if (item.getElement('more')) {
  243. item.getElement('more').hidden = true;
  244. }
  245. window.removeEventListener('mousemove', item.more_mousemove);
  246. };
  247. [item.div, item.getElement('more')].concat(
  248. item.getElement('more').children).forEach(function(elem) {
  249. elem.onmouseover = function() {
  250. arrayFrom(items_div.children).forEach(function(other) {
  251. if (other.item != item) {
  252. other.item.getElement('more').hidden = true;
  253. }
  254. });
  255. item.getElement('more').hidden = false;
  256. item.getElement('more').style.top =
  257. (item.div.offsetTop + item.div.offsetHeight) + 'px';
  258. item.getElement('more').style.left = item.div.offsetLeft + 'px';
  259. if (window.innerHeight < (parseInt(item.getElement('more').style.top) +
  260. item.getElement('more').offsetHeight)) {
  261. item.getElement('more').style.top = (
  262. item.div.offsetTop - item.getElement('more').offsetHeight) + 'px';
  263. }
  264. window.addEventListener('mousemove', item.more_mousemove);
  265. };
  266. });
  267.  
  268. if (item.referrer) {
  269. item.getElement('referrer').href = item.referrer;
  270. } else {
  271. item.getElement('referrer').hidden = true;
  272. }
  273. item.getElement('url').href = item.url;
  274. item.getElement('url').innerText = item.url;
  275. item.render();
  276. }
  277. DownloadItem.canResumeHack = false;
  278.  
  279. DownloadItem.prototype.getElement = function(name) {
  280. return document.querySelector('#item' + this.id + ' .' + name);
  281. };
  282.  
  283. DownloadItem.prototype.render = function() {
  284. var item = this;
  285. var now = new Date();
  286. var in_progress = (item.state == 'in_progress')
  287. var openable = (item.state != 'interrupted') && item.exists && !item.deleted;
  288.  
  289. item.startTime = new Date(item.startTime);
  290. if (DownloadItem.canResumeHack) {
  291. item.canResume = in_progress && item.paused;
  292. }
  293. if (item.filename) {
  294. item.basename = item.filename.substring(Math.max(
  295. item.filename.lastIndexOf('\\'),
  296. item.filename.lastIndexOf('/')) + 1);
  297. }
  298. if (item.estimatedEndTime) {
  299. item.estimatedEndTime = new Date(item.estimatedEndTime);
  300. }
  301.  
  302.  
  303. if (item.endTime) {
  304. item.endTime = new Date(item.endTime);
  305. }
  306.  
  307. if (item.filename && !item.icon_url) {
  308. chrome.downloads.getFileIcon(
  309. item.id,
  310. {'size': 32},
  311. function(icon_url) {
  312. item.getElement('icon').hidden = !icon_url;
  313. if (icon_url) {
  314. item.icon_url = icon_url;
  315. item.getElement('icon').src = icon_url;
  316. }
  317. });
  318. }
  319.  
  320. item.getElement('removed').style.display = openable ? 'none' : 'inline';
  321. item.getElement('open-filename').style.display = (
  322. openable ? 'inline' : 'none');
  323. item.getElement('in-progress').hidden = !in_progress;
  324. item.getElement('pause').style.display = (
  325. !in_progress || item.paused) ? 'none' : 'inline-block';
  326. item.getElement('resume').style.display = (
  327. !in_progress || !item.canResume) ? 'none' : 'inline-block';
  328. item.getElement('cancel').style.display = (
  329. !in_progress ? 'none' : 'inline-block');
  330. item.getElement('remove-file').hidden = (
  331. (item.state != 'complete') ||
  332. !item.exists ||
  333. item.deleted ||
  334. !chrome.downloads.removeFile);
  335. item.getElement('erase').hidden = in_progress;
  336.  
  337. var could_progress = in_progress || item.canResume;
  338. item.getElement('progress').style.display = (
  339. could_progress ? 'inline-block' : 'none');
  340. item.getElement('meter').hidden = !could_progress || !item.totalBytes;
  341.  
  342. item.getElement('removed').innerText = item.basename;
  343. item.getElement('open-filename').innerText = item.basename;
  344.  
  345. function setByExtension(show) {
  346. if (show) {
  347. item.getElement('by-ext').title = item.byExtensionName;
  348. item.getElement('by-ext').href =
  349. 'chrome://extensions#' + item.byExtensionId;
  350. item.getElement('by-ext img').src =
  351. 'chrome://extension-icon/' + item.byExtensionId + '/48/1';
  352. } else {
  353. item.getElement('by-ext').hidden = true;
  354. }
  355. }
  356. if (item.byExtensionId && item.byExtensionName) {
  357. chrome.permissions.contains({permissions: ['management']},
  358. function(result) {
  359. if (result) {
  360. setByExtension(true);
  361. } else {
  362. setByExtension(false);
  363. if (!localStorage.managementPermissionDenied) {
  364. document.getElementById('request-management-permission').hidden =
  365. false;
  366. document.getElementById('grant-management-permission').onclick =
  367. function() {
  368. chrome.permissions.request({permissions: ['management']},
  369. function(granted) {
  370. setByExtension(granted);
  371. if (!granted) {
  372. localStorage.managementPermissionDenied = true;
  373. }
  374. });
  375. return false;
  376. };
  377. }
  378. }
  379. });
  380. } else {
  381. setByExtension(false);
  382. }
  383.  
  384. if (!item.getElement('error').hidden) {
  385. if (item.error) {
  386. // TODO(benjhayden) When https://codereview.chromium.org/16924017/ is
  387. // released, set minimum_chrome_version and remove the error_N messages.
  388. item.getElement('error').innerText = chrome.i18n.getMessage(
  389. 'error_' + item.error);
  390. if (!item.getElement('error').innerText) {
  391. item.getElement('error').innerText = item.error;
  392. }
  393. } else if (!openable) {
  394. item.getElement('error').innerText = chrome.i18n.getMessage(
  395. 'errorRemoved');
  396. }
  397. }
  398.  
  399.  
  400.  
  401.  
  402.  
  403. if (in_progress) {
  404. if (item.estimatedEndTime && !item.paused) {
  405. var openWhenComplete = false;
  406. try {
  407. openWhenComplete = JSON.parse(localStorage.openWhenComplete).indexOf(
  408. item.id) >= 0;
  409. } catch (e) {
  410. }
  411.  
  412. item.getElement('time-left').innerText = formatTimeLeft(
  413. openWhenComplete, item.estimatedEndTime.getTime() - now.getTime());
  414.  
  415.  
  416. } else {
  417. item.getElement('time-left').innerText = String.fromCharCode(160);
  418. }
  419. }
  420.  
  421.  
  422.  
  423. ratchetWidth(item.getElement('icon').offsetWidth +
  424. item.getElement('file-url').offsetWidth +
  425. item.getElement('cancel').offsetWidth +
  426. item.getElement('pause').offsetWidth +
  427. item.getElement('resume').offsetWidth);
  428. ratchetWidth(item.getElement('more').offsetWidth);
  429.  
  430. this.maybeAccept();
  431. };
  432.  
  433. DownloadItem.prototype.onChanged = function(delta) {
  434. for (var key in delta) {
  435. if (key != 'id') {
  436. this[key] = delta[key].current;
  437. }
  438. }
  439. this.render();
  440. if (delta.state) {
  441. setLastOpened();
  442. }
  443. if ((this.state == 'in_progress') && !this.paused) {
  444. DownloadManager.startPollingProgress();
  445. }
  446. };
  447.  
  448. DownloadItem.prototype.onErased = function() {
  449. window.removeEventListener('mousemove', this.more_mousemove);
  450. document.getElementById('items').removeChild(this.div);
  451. };
  452.  
  453. DownloadItem.prototype.drag = function() {
  454. chrome.downloads.drag(this.id);
  455. };
  456.  
  457. DownloadItem.prototype.show = function() {
  458. chrome.downloads.show(this.id);
  459. };
  460.  
  461. DownloadItem.prototype.open = function() {
  462. if (this.state == 'complete') {
  463. chrome.downloads.open(this.id);
  464. return;
  465. }
  466. chrome.runtime.sendMessage({openWhenComplete:this.id});
  467. };
  468.  
  469. DownloadItem.prototype.removeFile = function() {
  470. chrome.downloads.removeFile(this.id);
  471. this.deleted = true;
  472. this.render();
  473. };
  474.  
  475. DownloadItem.prototype.erase = function() {
  476. chrome.downloads.erase({id: this.id});
  477. };
  478.  
  479. DownloadItem.prototype.pause = function() {
  480. chrome.downloads.pause(this.id);
  481. };
  482.  
  483. DownloadItem.prototype.resume = function() {
  484. chrome.downloads.resume(this.id);
  485. };
  486.  
  487. DownloadItem.prototype.cancel = function() {
  488. chrome.downloads.cancel(this.id);
  489. };
  490.  
  491. DownloadItem.prototype.maybeAccept = function() {
  492. // This function is safe to call at any time for any item, and it will always
  493. // do the right thing, which is to display the danger prompt only if the item
  494. // is in_progress and dangerous, and if the prompt is not already displayed.
  495. if ((this.state != 'in_progress') ||
  496. (this.danger == 'safe') ||
  497. (this.danger == 'accepted') ||
  498. DownloadItem.prototype.maybeAccept.accepting_danger) {
  499. return;
  500. }
  501. ratchetWidth(400);
  502. ratchetHeight(200);
  503. DownloadItem.prototype.maybeAccept.accepting_danger = true;
  504. // On Mac, window.onload is run while the popup is animating in, before it is
  505. // considered "visible". Prompts will not be displayed over an invisible
  506. // window, so the popup will become stuck. Just wait a little bit for the
  507. // window to finish animating in. http://crbug.com/280107
  508. // This has been fixed, so this setTimeout can be removed when the fix has
  509. // been released to stable, and minimum_chrome_version can be set.
  510. var id = this.id;
  511. setTimeout(function() {
  512. chrome.downloads.acceptDanger(id, function() {
  513. DownloadItem.prototype.maybeAccept.accepting_danger = false;
  514. arrayFrom(document.getElementById('items').childNodes).forEach(
  515. function(item_div) { item_div.item.maybeAccept(); });
  516. });
  517. }, 500);
  518. };
  519. DownloadItem.prototype.maybeAccept.accepting_danger = false;
  520.  
  521. var DownloadManager = {};
  522.  
  523. DownloadManager.showingOlder = false;
  524.  
  525. DownloadManager.getItem = function(id) {
  526. var item_div = document.getElementById('item' + id);
  527. return item_div ? item_div.item : null;
  528. };
  529.  
  530. DownloadManager.getOrCreate = function(data) {
  531. var item = DownloadManager.getItem(data.id);
  532. return item ? item : new DownloadItem(data);
  533. };
  534.  
  535. DownloadManager.forEachItem = function(cb) {
  536. // Calls cb(item, index) in the order that they are displayed, i.e. in order
  537. // of decreasing startTime.
  538. arrayFrom(document.getElementById('items').childNodes).forEach(
  539. function(item_div, index) { cb(item_div.item, index); });
  540. };
  541.  
  542. DownloadManager.startPollingProgress = function() {
  543. if (DownloadManager.startPollingProgress.tid < 0) {
  544. DownloadManager.startPollingProgress.tid = setTimeout(
  545. DownloadManager.startPollingProgress.pollProgress,
  546. DownloadManager.startPollingProgress.MS);
  547. }
  548. }
  549. DownloadManager.startPollingProgress.MS = 200;
  550. DownloadManager.startPollingProgress.tid = -1;
  551. DownloadManager.startPollingProgress.pollProgress = function() {
  552. DownloadManager.startPollingProgress.tid = -1;
  553. chrome.downloads.search({state: 'in_progress', paused: false},
  554. function(results) {
  555. if (!results.length)
  556. return;
  557. results.forEach(function(result) {
  558. var item = DownloadManager.getOrCreate(result);
  559. for (var prop in result) {
  560. item[prop] = result[prop];
  561. }
  562. item.render();
  563. if ((item.state == 'in_progress') && !item.paused) {
  564. DownloadManager.startPollingProgress();
  565. }
  566. });
  567. });
  568. };
  569.  
  570. DownloadManager.showNew = function() {
  571. var any_items = (document.getElementById('items').childNodes.length > 0);
  572. document.getElementById('empty').style.display =
  573. any_items ? 'none' : 'inline-block';
  574. document.getElementById('head').style.borderBottomWidth =
  575. (any_items ? 1 : 0) + 'px';
  576. document.getElementById('clear-all').hidden = !any_items;
  577.  
  578. var query_search = document.getElementById('q');
  579. query_search.hidden = !any_items;
  580.  
  581. if (!any_items) {
  582. return;
  583. }
  584. var old_ms = (new Date()).getTime() - kOldMs;
  585. var any_hidden = false;
  586. var any_showing = false;
  587. // First show up to kShowNewMax items newer than kOldMs. If there aren't any
  588. // items newer than kOldMs, then show up to kShowNewMax items of any age. If
  589. // there are any hidden items, show the Show Older button.
  590. DownloadManager.forEachItem(function(item, index) {
  591. item.div.hidden = !DownloadManager.showingOlder && (
  592. (item.startTime.getTime() < old_ms) || (index >= kShowNewMax));
  593. any_hidden = any_hidden || item.div.hidden;
  594. any_showing = any_showing || !item.div.hidden;
  595. });
  596. if (!any_showing) {
  597. any_hidden = false;
  598. DownloadManager.forEachItem(function(item, index) {
  599. item.div.hidden = !DownloadManager.showingOlder && (index >= kShowNewMax);
  600. any_hidden = any_hidden || item.div.hidden;
  601. any_showing = any_showing || !item.div.hidden;
  602. });
  603. }
  604. document.getElementById('older').hidden = !any_hidden;
  605.  
  606. query_search.focus();
  607. };
  608.  
  609. DownloadManager.showOlder = function() {
  610. DownloadManager.showingOlder = true;
  611. var loading_older_span = document.getElementById('loading-older');
  612. document.getElementById('older').hidden = true;
  613. loading_older_span.hidden = false;
  614. chrome.downloads.search({}, function(results) {
  615. results.forEach(function(result) {
  616. var item = DownloadManager.getOrCreate(result);
  617. item.div.hidden = false;
  618. });
  619. loading_older_span.hidden = true;
  620. });
  621. };
  622.  
  623. DownloadManager.onSearch = function() {
  624. // split string by space, but ignore space in quotes
  625. // http://stackoverflow.com/questions/16261635
  626. var query = document.getElementById('q').value.match(/(?:[^\s"]+|"[^"]*")+/g);
  627. if (!query) {
  628. DownloadManager.showNew();
  629. document.getElementById('search-zero').hidden = true;
  630. } else {
  631. query = query.map(function(term) {
  632. // strip quotes
  633. return (term.match(/\s/) &&
  634. term[0].match(/["']/) &&
  635. term[term.length - 1] == term[0]) ?
  636. term.substr(1, term.length - 2) : term;
  637. });
  638. var searching = document.getElementById('searching');
  639. searching.hidden = false;
  640. chrome.downloads.search({query: query}, function(results) {
  641. document.getElementById('older').hidden = true;
  642. DownloadManager.forEachItem(function(item) {
  643. item.div.hidden = true;
  644. });
  645. results.forEach(function(result) {
  646. DownloadManager.getOrCreate(result).div.hidden = false;
  647. });
  648. searching.hidden = true;
  649. document.getElementById('search-zero').hidden = (results.length != 0);
  650. });
  651. }
  652. };
  653.  
  654. DownloadManager.clearAll = function() {
  655. DownloadManager.forEachItem(function(item) {
  656. if (!item.div.hidden) {
  657. item.erase();
  658. // The onErased handler should circle back around to loadItems.
  659. }
  660. });
  661. };
  662.  
  663. var kShowNewMax = 50;
  664. var kOldMs = 1000 * 60 * 60 * 24 * 7;
  665.  
  666. // These settings can be tuned by modifying localStorage in dev-tools.
  667. if ('kShowNewMax' in localStorage) {
  668. kShowNewMax = parseInt(localStorage.kShowNewMax);
  669. }
  670. if ('kOldMs' in localStorage) {
  671. kOldMs = parseInt(localStorage.kOldMs);
  672. }
  673.  
  674. DownloadManager.loadItems = function() {
  675. // Request up to kShowNewMax + 1, but only display kShowNewMax; the +1 is a
  676. // probe to see if there are any older downloads.
  677. // TODO(benjhayden) When https://codereview.chromium.org/16924017/ is
  678. // released, set minimum_chrome_version and remove this try/catch.
  679. try {
  680. chrome.downloads.search({
  681. orderBy: ['-startTime'],
  682. limit: kShowNewMax + 1},
  683. function(results) {
  684. DownloadManager.loadItems.items = results;
  685. DownloadManager.loadItems.onLoaded();
  686. });
  687. } catch (exc) {
  688. chrome.downloads.search({
  689. orderBy: '-startTime',
  690. limit: kShowNewMax + 1},
  691. function(results) {
  692. DownloadManager.loadItems.items = results;
  693. DownloadManager.loadItems.onLoaded();
  694. });
  695. }
  696. };
  697. DownloadManager.loadItems.items = [];
  698. DownloadManager.loadItems.window_loaded = false;
  699.  
  700. DownloadManager.loadItems.onLoaded = function() {
  701. if (!DownloadManager.loadItems.window_loaded) {
  702. return;
  703. }
  704. DownloadManager.loadItems.items.forEach(function(item) {
  705. DownloadManager.getOrCreate(item);
  706. });
  707. DownloadManager.loadItems.items = [];
  708. DownloadManager.showNew();
  709. };
  710.  
  711. DownloadManager.loadItems.onWindowLoaded = function() {
  712. DownloadManager.loadItems.window_loaded = true;
  713. DownloadManager.loadItems.onLoaded();
  714. };
  715.  
  716. // If this extension is installed on a stable-channel chrome, where the
  717. // downloads API is not available, do not use the downloads API, and link to the
  718. // beta channel.
  719. if (chrome.downloads) {
  720. // Start searching ASAP, don't wait for onload.
  721. DownloadManager.loadItems();
  722.  
  723. chrome.downloads.onCreated.addListener(function(item) {
  724. DownloadManager.getOrCreate(item);
  725. DownloadManager.showNew();
  726. DownloadManager.startPollingProgress();
  727. });
  728.  
  729. chrome.downloads.onChanged.addListener(function(delta) {
  730. var item = DownloadManager.getItem(delta.id);
  731. if (item) {
  732. item.onChanged(delta);
  733. }
  734. });
  735.  
  736. chrome.downloads.onErased.addListener(function(id) {
  737. var item = DownloadManager.getItem(id);
  738. if (!item) {
  739. return;
  740. }
  741. item.onErased();
  742. DownloadManager.loadItems();
  743. });
  744.  
  745. chrome.downloads.onChanged.addListener(function(delta) {
  746. if (delta.state.current == "complete") {
  747. var c = new Audio('http://www.html5rocks.com/en/tutorials/audio/quick/test.mp3');
  748. c.play();
  749. }
  750. });
  751.  
  752. window.onload = function() {
  753. ratchetWidth(
  754. document.getElementById('q-outer').offsetWidth +
  755. document.getElementById('clear-all').offsetWidth +
  756. document.getElementById('open-folder').offsetWidth);
  757. setLastOpened();
  758. loadI18nMessages();
  759. DownloadManager.loadItems.onWindowLoaded();
  760. document.getElementById('older').onclick = function() {
  761. DownloadManager.showOlder();
  762. return false;
  763. };
  764. document.getElementById('q').onsearch = function() {
  765. DownloadManager.onSearch();
  766. };
  767. document.getElementById('clear-all').onclick = function() {
  768. DownloadManager.clearAll();
  769. return false;
  770. };
  771. if (chrome.downloads.showDefaultFolder) {
  772. document.getElementById('open-folder').onclick = function() {
  773. chrome.downloads.showDefaultFolder();
  774. return false;
  775. };
  776. } else {
  777. document.getElementById('open-folder').hidden = true;
  778. }
  779. };
  780. } else {
  781. // The downloads API is not available.
  782. // TODO(benjhayden) Remove this when minimum_chrome_version is set.
  783. window.onload = function() {
  784. loadI18nMessages();
  785. var bad_version = document.getElementById('bad-chrome-version');
  786. bad_version.hidden = false;
  787. bad_version.onclick = function() {
  788. chrome.tabs.create({url: bad_version.href});
  789. return false;
  790. };
  791. document.getElementById('empty').style.display = 'none';
  792. document.getElementById('q').style.display = 'none';
  793. document.getElementById('open-folder').style.display = 'none';
  794. document.getElementById('clear-all').style.display = 'none';
  795. };
  796. }
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