forked from mirrors/gecko-dev
87 lines
2.5 KiB
JavaScript
87 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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SessionStore: "resource:///modules/sessionstore/SessionStore.sys.mjs",
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TabCrashHandler: "resource:///modules/ContentCrashHandlers.sys.mjs",
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});
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// A list of all of the open about:tabcrashed pages.
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let gAboutTabCrashedPages = new Map();
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export class AboutTabCrashedParent extends JSWindowActorParent {
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didDestroy() {
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this.removeCrashedPage();
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}
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async receiveMessage(message) {
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let browser = this.browsingContext.top.embedderElement;
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if (!browser) {
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// If there is no browser, remove the crashed page from the set
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// and return.
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this.removeCrashedPage();
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return;
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}
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let gBrowser = browser.getTabBrowser();
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let tab = gBrowser.getTabForBrowser(browser);
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switch (message.name) {
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case "Load": {
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gAboutTabCrashedPages.set(this, browser);
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this.updateTabCrashedCount();
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let report = lazy.TabCrashHandler.onAboutTabCrashedLoad(browser);
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this.sendAsyncMessage("SetCrashReportAvailable", report);
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break;
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}
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case "closeTab": {
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lazy.TabCrashHandler.maybeSendCrashReport(browser, message);
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gBrowser.removeTab(tab, { animate: true });
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break;
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}
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case "restoreTab": {
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lazy.TabCrashHandler.maybeSendCrashReport(browser, message);
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lazy.SessionStore.reviveCrashedTab(tab);
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break;
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}
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case "restoreAll": {
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lazy.TabCrashHandler.maybeSendCrashReport(browser, message);
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lazy.SessionStore.reviveAllCrashedTabs();
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break;
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}
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}
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}
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removeCrashedPage() {
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let browser =
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this.browsingContext.top.embedderElement ||
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gAboutTabCrashedPages.get(this);
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gAboutTabCrashedPages.delete(this);
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this.updateTabCrashedCount();
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lazy.TabCrashHandler.onAboutTabCrashedUnload(browser);
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}
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updateTabCrashedCount() {
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// Broadcast to all about:tabcrashed pages a count of
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// how many about:tabcrashed pages exist, so that they
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// can decide whether or not to display the "Restore All
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// Crashed Tabs" button.
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let count = gAboutTabCrashedPages.size;
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for (let actor of gAboutTabCrashedPages.keys()) {
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let browser = actor.browsingContext.top.embedderElement;
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if (browser) {
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browser.sendMessageToActor("UpdateCount", { count }, "AboutTabCrashed");
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}
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}
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}
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}
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