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Translated files to a single monorepo
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mr. M
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25 changed files with 8696 additions and 26 deletions
283
src/browser/base/zen-components/ZenTabUnloader.mjs
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283
src/browser/base/zen-components/ZenTabUnloader.mjs
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{
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const lazy = {};
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XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderEnabled', 'zen.tab-unloader.enabled', false);
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XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderTimeout', 'zen.tab-unloader.timeout-minutes', 20);
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XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderExcludedUrls', 'zen.tab-unloader.excluded-urls', '');
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const ZEN_TAB_UNLOADER_DEFAULT_EXCLUDED_URLS = [
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'^about:',
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'^chrome:',
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'^devtools:',
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'^file:',
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'^resource:',
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'^view-source:',
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'^view-image:',
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];
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class ZenTabsObserver {
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static ALL_EVENTS = [
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'TabAttrModified',
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'TabPinned',
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'TabUnpinned',
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'TabBrowserInserted',
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'TabBrowserDiscarded',
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'TabShow',
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'TabHide',
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'TabOpen',
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'TabClose',
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'TabSelect',
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'TabMultiSelect',
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];
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#listeners = [];
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constructor() {
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this.#listenAllEvents();
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}
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#listenAllEvents() {
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const eventListener = this.#eventListener.bind(this);
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for (const event of ZenTabsObserver.ALL_EVENTS) {
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window.addEventListener(event, eventListener);
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}
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window.addEventListener('unload', () => {
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for (const event of ZenTabsObserver.ALL_EVENTS) {
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window.removeEventListener(event, eventListener);
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}
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});
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}
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#eventListener(event) {
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for (const listener of this.#listeners) {
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listener(event.type, event);
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}
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}
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addTabsListener(listener) {
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this.#listeners.push(listener);
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}
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}
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class ZenTabsIntervalUnloader {
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static INTERVAL = 1000 * 60; // 1 minute
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interval = null;
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unloader = null;
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#excludedUrls = [];
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#compiledExcludedUrls = [];
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constructor(unloader) {
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this.unloader = unloader;
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this.interval = setInterval(this.intervalListener.bind(this), ZenTabsIntervalUnloader.INTERVAL);
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this.#excludedUrls = this.lazyExcludeUrls;
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}
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get lazyExcludeUrls() {
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return [
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...ZEN_TAB_UNLOADER_DEFAULT_EXCLUDED_URLS,
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...lazy.zenTabUnloaderExcludedUrls.split(',').map((url) => url.trim()),
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];
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}
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arraysEqual(a, b) {
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if (a === b) return true;
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if (a == null || b == null) return false;
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if (a.length !== b.length) return false;
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// If you don't care about the order of the elements inside
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// the array, you should sort both arrays here.
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// Please note that calling sort on an array will modify that array.
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// you might want to clone your array first.
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for (var i = 0; i < a.length; ++i) {
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if (a[i] !== b[i]) return false;
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}
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return true;
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}
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get excludedUrls() {
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// Check if excludedrls is the same as the pref value
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const excludedUrls = this.lazyExcludeUrls;
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if (!this.arraysEqual(this.#excludedUrls, excludedUrls) || !this.#compiledExcludedUrls.length) {
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this.#excludedUrls = excludedUrls;
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this.#compiledExcludedUrls = excludedUrls.map((url) => new RegExp(url));
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}
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return this.#compiledExcludedUrls;
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}
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intervalListener() {
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if (!lazy.zenTabUnloaderEnabled) {
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return;
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}
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const currentTimestamp = Date.now();
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const excludedUrls = this.excludedUrls;
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const tabs = gBrowser.tabs;
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for (let i = 0; i < tabs.length; i++) {
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const tab = tabs[i];
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if (this.unloader.canUnloadTab(tab, currentTimestamp, excludedUrls)) {
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this.unloader.unload(tab);
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}
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}
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}
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}
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class ZenTabUnloader extends ZenDOMOperatedFeature {
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static ACTIVITY_MODIFIERS = ['muted', 'soundplaying', 'label', 'attention'];
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init() {
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if (!lazy.zenTabUnloaderEnabled) {
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return;
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}
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this.insertIntoContextMenu();
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this.observer = new ZenTabsObserver();
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this.intervalUnloader = new ZenTabsIntervalUnloader(this);
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this.observer.addTabsListener(this.onTabEvent.bind(this));
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}
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onTabEvent(action, event) {
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const tab = event.target;
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switch (action) {
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case 'TabPinned':
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case 'TabUnpinned':
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case 'TabBrowserInserted':
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case 'TabBrowserDiscarded':
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case 'TabShow':
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case 'TabHide':
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break;
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case 'TabAttrModified':
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this.handleTabAttrModified(tab, event);
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break;
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case 'TabOpen':
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this.handleTabOpen(tab);
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break;
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case 'TabClose':
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this.handleTabClose(tab);
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break;
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case 'TabSelect':
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case 'TabMultiSelect':
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this.updateTabActivity(tab);
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break;
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default:
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console.warn('ZenTabUnloader: Unhandled tab event', action);
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break;
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}
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}
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onLocationChange(browser) {
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const tab = browser.ownerGlobal.gBrowser.getTabForBrowser(browser);
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this.updateTabActivity(tab);
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}
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handleTabClose(tab) {
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// Nothing yet
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}
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handleTabOpen(tab) {
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this.updateTabActivity(tab);
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}
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handleTabAttrModified(tab, event) {
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for (const modifier of ZenTabUnloader.ACTIVITY_MODIFIERS) {
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if (event.detail.changed.includes(modifier)) {
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this.updateTabActivity(tab);
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break;
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}
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}
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}
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updateTabActivity(tab) {
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const currentTimestamp = Date.now();
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tab.lastActivity = currentTimestamp;
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}
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get tabs() {
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return gBrowser.tabs;
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}
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insertIntoContextMenu() {
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const element = window.MozXULElement.parseXULToFragment(`
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<menuseparator/>
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<menuitem id="context_zenUnloadTab"
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data-lazy-l10n-id="tab-zen-unload"
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oncommand="gZenTabUnloader.unloadTab();"/>
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<menu data-lazy-l10n-id="zen-tabs-unloader-tab-actions" id="context_zenTabActions">
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<menupopup>
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<menuitem id="context_zenPreventUnloadTab"
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data-lazy-l10n-id="tab-zen-prevent-unload"
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oncommand="gZenTabUnloader.preventUnloadTab();"/>
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<menuitem id="context_zenIgnoreUnloadTab"
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data-lazy-l10n-id="tab-zen-ignore-unload"
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oncommand="gZenTabUnloader.ignoreUnloadTab();"/>
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</menupopup>
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</menu>
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`);
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document.getElementById('context_closeDuplicateTabs').parentNode.appendChild(element);
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}
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unload(tab) {
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gBrowser.discardBrowser(tab);
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tab.removeAttribute('linkedpanel');
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}
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unloadTab() {
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const tabs = TabContextMenu.contextTab.multiselected ? gBrowser.selectedTabs : [TabContextMenu.contextTab];
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for (let i = 0; i < tabs.length; i++) {
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if (this.canUnloadTab(tabs[i], Date.now(), [], true)) {
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this.unload(tabs[i]);
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}
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}
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}
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preventUnloadTab() {
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const tabs = TabContextMenu.contextTab.multiselected ? gBrowser.selectedTabs : [TabContextMenu.contextTab];
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for (let i = 0; i < tabs.length; i++) {
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const tab = tabs[i];
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tab.zenIgnoreUnload = true;
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}
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}
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ignoreUnloadTab() {
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const tabs = TabContextMenu.contextTab.multiselected ? gBrowser.selectedTabs : [TabContextMenu.contextTab];
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for (let i = 0; i < tabs.length; i++) {
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const tab = tabs[i];
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tab.zenIgnoreUnload = false;
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}
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}
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canUnloadTab(tab, currentTimestamp, excludedUrls, ignoreTimestamp = false) {
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if (
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tab.pinned ||
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tab.selected ||
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tab.multiselected ||
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tab.hasAttribute('busy') ||
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tab.hasAttribute('pending') ||
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!tab.linkedPanel ||
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tab.splitView ||
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tab.attention ||
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tab.linkedBrowser?.zenModeActive ||
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tab.pictureinpicture ||
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tab.soundPlaying ||
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tab.zenIgnoreUnload ||
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excludedUrls.some((url) => url.test(tab.linkedBrowser.currentURI.spec))
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) {
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return false;
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}
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if (ignoreTimestamp) {
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return true;
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}
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const lastActivity = tab.lastActivity;
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if (!lastActivity) {
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return false;
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}
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const diff = currentTimestamp - lastActivity;
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// Check if the tab has been inactive for more than the timeout
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return diff > lazy.zenTabUnloaderTimeout * 60 * 1000;
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}
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}
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window.gZenTabUnloader = new ZenTabUnloader();
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}
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