forked from mirrors/gecko-dev
1959 lines
58 KiB
JavaScript
1959 lines
58 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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"use strict";
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// This is loaded into all XUL windows. Wrap in a block to prevent
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// leaking to window scope.
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{
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const { AppConstants } = ChromeUtils.importESModule(
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"resource://gre/modules/AppConstants.sys.mjs"
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);
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const { XPCOMUtils } = ChromeUtils.importESModule(
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"resource://gre/modules/XPCOMUtils.sys.mjs"
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);
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let lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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BrowserUtils: "resource://gre/modules/BrowserUtils.sys.mjs",
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Finder: "resource://gre/modules/Finder.sys.mjs",
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FinderParent: "resource://gre/modules/FinderParent.sys.mjs",
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PopupBlocker: "resource://gre/actors/PopupBlockingParent.sys.mjs",
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SelectParentHelper: "resource://gre/actors/SelectParent.sys.mjs",
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RemoteWebNavigation: "resource://gre/modules/RemoteWebNavigation.sys.mjs",
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});
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XPCOMUtils.defineLazyGetter(lazy, "blankURI", () =>
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Services.io.newURI("about:blank")
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);
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let lazyPrefs = {};
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XPCOMUtils.defineLazyPreferenceGetter(
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lazyPrefs,
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"unloadTimeoutMs",
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"dom.beforeunload_timeout_ms"
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);
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Object.defineProperty(lazy, "ProcessHangMonitor", {
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configurable: true,
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get() {
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// Import if we can - this is a browser/ module so it may not be
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// available, in which case we return null. We replace this getter
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// when the module becomes available (should be on delayed startup
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// when the first browser window loads, via BrowserGlue.sys.mjs).
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const kURL = "resource:///modules/ProcessHangMonitor.jsm";
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if (Cu.isModuleLoaded(kURL)) {
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let { ProcessHangMonitor } = ChromeUtils.import(kURL);
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// eslint-disable-next-line mozilla/valid-lazy
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Object.defineProperty(lazy, "ProcessHangMonitor", {
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value: ProcessHangMonitor,
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});
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return ProcessHangMonitor;
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}
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return null;
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},
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});
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// Get SessionStore module in the same as ProcessHangMonitor above.
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Object.defineProperty(lazy, "SessionStore", {
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configurable: true,
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get() {
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const kURL = "resource:///modules/sessionstore/SessionStore.sys.mjs";
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if (Cu.isESModuleLoaded(kURL)) {
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let { SessionStore } = ChromeUtils.importESModule(kURL);
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// eslint-disable-next-line mozilla/valid-lazy
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Object.defineProperty(lazy, "SessionStore", {
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value: SessionStore,
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});
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return SessionStore;
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}
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return null;
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},
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});
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const elementsToDestroyOnUnload = new Set();
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window.addEventListener(
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"unload",
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() => {
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for (let element of elementsToDestroyOnUnload.values()) {
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element.destroy();
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}
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elementsToDestroyOnUnload.clear();
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},
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{ mozSystemGroup: true, once: true }
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);
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class MozBrowser extends MozElements.MozElementMixin(XULFrameElement) {
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static get observedAttributes() {
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return ["remote"];
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}
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constructor() {
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super();
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this.onPageHide = this.onPageHide.bind(this);
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this.isNavigating = false;
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this._documentURI = null;
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this._characterSet = null;
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this._documentContentType = null;
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this._inPermitUnload = new WeakSet();
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this._originalURI = null;
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this._searchTerms = "";
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// When we open a prompt in reaction to a 401, if this 401 comes from
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// a different base domain, the url of that site will be stored here
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// and will be used for auth prompt spoofing protections.
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// See bug 791594 for reference.
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this._currentAuthPromptURI = null;
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/**
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* These are managed by the tabbrowser:
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*/
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this.droppedLinkHandler = null;
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this.mIconURL = null;
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this.lastURI = null;
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XPCOMUtils.defineLazyGetter(this, "popupBlocker", () => {
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return new lazy.PopupBlocker(this);
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});
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this.addEventListener(
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"dragover",
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event => {
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if (!this.droppedLinkHandler || event.defaultPrevented) {
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return;
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}
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// For drags that appear to be internal text (for example, tab drags),
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// set the dropEffect to 'none'. This prevents the drop even if some
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// other listener cancelled the event.
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var types = event.dataTransfer.types;
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if (
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types.includes("text/x-moz-text-internal") &&
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!types.includes("text/plain")
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) {
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event.dataTransfer.dropEffect = "none";
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event.stopPropagation();
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event.preventDefault();
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}
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// No need to handle "dragover" in e10s, since nsDocShellTreeOwner.cpp in the child process
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// handles that case using "@mozilla.org/content/dropped-link-handler;1" service.
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if (this.isRemoteBrowser) {
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return;
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}
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let linkHandler = Services.droppedLinkHandler;
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if (linkHandler.canDropLink(event, false)) {
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event.preventDefault();
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}
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},
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{ mozSystemGroup: true }
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);
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this.addEventListener(
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"drop",
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event => {
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// No need to handle "drop" in e10s, since nsDocShellTreeOwner.cpp in the child process
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// handles that case using "@mozilla.org/content/dropped-link-handler;1" service.
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if (
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!this.droppedLinkHandler ||
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event.defaultPrevented ||
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this.isRemoteBrowser
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) {
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return;
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}
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let linkHandler = Services.droppedLinkHandler;
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try {
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if (!linkHandler.canDropLink(event, false)) {
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return;
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}
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// Pass true to prevent the dropping of javascript:/data: URIs
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var links = linkHandler.dropLinks(event, true);
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} catch (ex) {
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return;
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}
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if (links.length) {
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let triggeringPrincipal = linkHandler.getTriggeringPrincipal(event);
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this.droppedLinkHandler(event, links, triggeringPrincipal);
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}
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},
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{ mozSystemGroup: true }
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);
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this.addEventListener("dragstart", event => {
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// If we're a remote browser dealing with a dragstart, stop it
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// from propagating up, since our content process should be dealing
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// with the mouse movement.
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if (this.isRemoteBrowser) {
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event.stopPropagation();
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}
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});
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}
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resetFields() {
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if (this.observer) {
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try {
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Services.obs.removeObserver(
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this.observer,
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"browser:purge-session-history"
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);
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} catch (ex) {
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// It's not clear why this sometimes throws an exception.
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}
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this.observer = null;
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}
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let browser = this;
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this.observer = {
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observe(aSubject, aTopic, aState) {
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if (aTopic == "browser:purge-session-history") {
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browser.purgeSessionHistory();
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} else if (aTopic == "apz:cancel-autoscroll") {
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if (aState == browser._autoScrollScrollId) {
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// Set this._autoScrollScrollId to null, so in stopScroll() we
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// don't call stopApzAutoscroll() (since it's APZ that
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// initiated the stopping).
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browser._autoScrollScrollId = null;
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browser._autoScrollPresShellId = null;
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browser._autoScrollPopup.hidePopup();
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}
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}
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},
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QueryInterface: ChromeUtils.generateQI([
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"nsIObserver",
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"nsISupportsWeakReference",
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]),
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};
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this._documentURI = null;
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this._originalURI = null;
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this._currentAuthPromptURI = null;
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this._searchTerms = "";
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this._documentContentType = null;
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this._loadContext = null;
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this._webBrowserFind = null;
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this._finder = null;
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this._remoteFinder = null;
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this._fastFind = null;
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this._lastSearchString = null;
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this._characterSet = "";
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this._mayEnableCharacterEncodingMenu = null;
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this._contentPrincipal = null;
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this._contentPartitionedPrincipal = null;
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this._csp = null;
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this._referrerInfo = null;
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this._contentRequestContextID = null;
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this._rdmFullZoom = 1.0;
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this._isSyntheticDocument = false;
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this.mPrefs = Services.prefs;
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this._mStrBundle = null;
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this._audioMuted = false;
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this._hasAnyPlayingMediaBeenBlocked = false;
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this._unselectedTabHoverMessageListenerCount = 0;
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this.urlbarChangeTracker = {
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_startedLoadSinceLastUserTyping: false,
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startedLoad() {
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this._startedLoadSinceLastUserTyping = true;
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},
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finishedLoad() {
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this._startedLoadSinceLastUserTyping = false;
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},
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userTyped() {
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this._startedLoadSinceLastUserTyping = false;
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},
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};
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this._userTypedValue = null;
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this._AUTOSCROLL_SNAP = 10;
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this._autoScrollBrowsingContext = null;
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this._startX = null;
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this._startY = null;
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this._autoScrollPopup = null;
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/**
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* These IDs identify the scroll frame being autoscrolled.
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*/
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this._autoScrollScrollId = null;
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this._autoScrollPresShellId = null;
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}
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connectedCallback() {
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// We typically use this to avoid running JS that triggers a layout during parse
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// (see comment on the delayConnectedCallback implementation). In this case, we
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// are using it to avoid a leak - see https://bugzilla.mozilla.org/show_bug.cgi?id=1441935#c20.
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if (this.delayConnectedCallback()) {
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return;
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}
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this.construct();
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}
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disconnectedCallback() {
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this.destroy();
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}
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get autoscrollEnabled() {
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if (this.getAttribute("autoscroll") == "false") {
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return false;
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}
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return this.mPrefs.getBoolPref("general.autoScroll", true);
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}
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get canGoBack() {
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return this.webNavigation.canGoBack;
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}
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get canGoForward() {
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return this.webNavigation.canGoForward;
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}
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// While an auth prompt from a base domain different than the current sites is open, we want to display the url of the cross domain site.
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// This is to prevent possible auth spoofing scenarios.
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// The URL of the requesting origin is provided by 'currentAuthPromptURI', this will only be non null while an auth prompt is open.
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// See bug 791594 for reference.
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get currentURI() {
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if (this.currentAuthPromptURI) {
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return this.currentAuthPromptURI;
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}
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if (this.webNavigation) {
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return this.webNavigation.currentURI;
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}
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return null;
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}
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get documentURI() {
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return this.isRemoteBrowser
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? this._documentURI
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: this.contentDocument?.documentURIObject;
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}
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get documentContentType() {
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if (this.isRemoteBrowser) {
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return this._documentContentType;
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}
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return this.contentDocument ? this.contentDocument.contentType : null;
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}
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set documentContentType(aContentType) {
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if (aContentType != null) {
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if (this.isRemoteBrowser) {
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this._documentContentType = aContentType;
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} else {
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this.contentDocument.documentContentType = aContentType;
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}
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}
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}
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get loadContext() {
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if (this._loadContext) {
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return this._loadContext;
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}
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let { frameLoader } = this;
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if (!frameLoader) {
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return null;
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}
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this._loadContext = frameLoader.loadContext;
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return this._loadContext;
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}
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get autoCompletePopup() {
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return document.getElementById(this.getAttribute("autocompletepopup"));
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}
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get dateTimePicker() {
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return document.getElementById(this.getAttribute("datetimepicker"));
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}
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set suspendMediaWhenInactive(val) {
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this.browsingContext.suspendMediaWhenInactive = val;
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}
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get suspendMediaWhenInactive() {
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return !!this.browsingContext?.suspendMediaWhenInactive;
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}
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set docShellIsActive(val) {
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this.browsingContext.isActive = val;
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if (this.isRemoteBrowser) {
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let remoteTab = this.frameLoader?.remoteTab;
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if (remoteTab) {
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remoteTab.renderLayers = val;
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}
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}
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}
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get docShellIsActive() {
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return !!this.browsingContext?.isActive;
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}
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set renderLayers(val) {
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if (this.isRemoteBrowser) {
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let remoteTab = this.frameLoader?.remoteTab;
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if (remoteTab) {
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remoteTab.renderLayers = val;
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}
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} else {
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this.docShellIsActive = val;
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}
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}
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get renderLayers() {
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if (this.isRemoteBrowser) {
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return !!this.frameLoader?.remoteTab?.renderLayers;
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}
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return this.docShellIsActive;
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}
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get hasLayers() {
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if (this.isRemoteBrowser) {
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return !!this.frameLoader?.remoteTab?.hasLayers;
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}
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return this.docShellIsActive;
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}
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get isRemoteBrowser() {
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return this.getAttribute("remote") == "true";
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}
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get remoteType() {
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return this.browsingContext?.currentRemoteType;
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}
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get isCrashed() {
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if (!this.isRemoteBrowser || !this.frameLoader) {
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return false;
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}
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return !this.frameLoader.remoteTab;
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}
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get messageManager() {
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// Bug 1524084 - Trying to get at the message manager while in the crashed state will
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// create a new message manager that won't shut down properly when the crashed browser
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// is removed from the DOM. We work around that right now by returning null if we're
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// in the crashed state.
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if (this.frameLoader && !this.isCrashed) {
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return this.frameLoader.messageManager;
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}
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return null;
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}
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get webBrowserFind() {
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if (!this._webBrowserFind) {
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this._webBrowserFind = this.docShell
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIWebBrowserFind);
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}
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return this._webBrowserFind;
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}
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get finder() {
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if (this.isRemoteBrowser) {
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if (!this._remoteFinder) {
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this._remoteFinder = new lazy.FinderParent(this);
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}
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return this._remoteFinder;
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}
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if (!this._finder) {
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if (!this.docShell) {
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return null;
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}
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this._finder = new lazy.Finder(this.docShell);
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}
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return this._finder;
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}
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get fastFind() {
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if (!this._fastFind) {
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if (!("@mozilla.org/typeaheadfind;1" in Cc)) {
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return null;
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}
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var tabBrowser = this.getTabBrowser();
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if (tabBrowser && "fastFind" in tabBrowser) {
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return (this._fastFind = tabBrowser.fastFind);
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}
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if (!this.docShell) {
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return null;
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}
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this._fastFind = Cc["@mozilla.org/typeaheadfind;1"].createInstance(
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Ci.nsITypeAheadFind
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);
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this._fastFind.init(this.docShell);
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}
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return this._fastFind;
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}
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get outerWindowID() {
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return this.browsingContext?.currentWindowGlobal?.outerWindowId;
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}
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get innerWindowID() {
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return this.browsingContext?.currentWindowGlobal?.innerWindowId || null;
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}
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get browsingContext() {
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if (this.frameLoader) {
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return this.frameLoader.browsingContext;
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}
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return null;
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}
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/**
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* Note that this overrides webNavigation on XULFrameElement, and duplicates the return value for the non-remote case
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*/
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get webNavigation() {
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return this.isRemoteBrowser
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? this._remoteWebNavigation
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: this.docShell && this.docShell.QueryInterface(Ci.nsIWebNavigation);
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}
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get webProgress() {
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return this.browsingContext?.webProgress;
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}
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get sessionHistory() {
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return this.webNavigation.sessionHistory;
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}
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get contentTitle() {
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return this.isRemoteBrowser
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? this.browsingContext?.currentWindowGlobal?.documentTitle
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: this.contentDocument.title;
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}
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forceEncodingDetection() {
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if (this.isRemoteBrowser) {
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this.sendMessageToActor("ForceEncodingDetection", {}, "BrowserTab");
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} else {
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this.docShell.forceEncodingDetection();
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}
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}
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get characterSet() {
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return this.isRemoteBrowser ? this._characterSet : this.docShell.charset;
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}
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get mayEnableCharacterEncodingMenu() {
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return this.isRemoteBrowser
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? this._mayEnableCharacterEncodingMenu
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: this.docShell.mayEnableCharacterEncodingMenu;
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}
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set mayEnableCharacterEncodingMenu(aMayEnable) {
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if (this.isRemoteBrowser) {
|
|
this._mayEnableCharacterEncodingMenu = aMayEnable;
|
|
}
|
|
}
|
|
|
|
get contentPrincipal() {
|
|
return this.isRemoteBrowser
|
|
? this._contentPrincipal
|
|
: this.contentDocument.nodePrincipal;
|
|
}
|
|
|
|
get contentPartitionedPrincipal() {
|
|
return this.isRemoteBrowser
|
|
? this._contentPartitionedPrincipal
|
|
: this.contentDocument.partitionedPrincipal;
|
|
}
|
|
|
|
get cookieJarSettings() {
|
|
return this.isRemoteBrowser
|
|
? this.browsingContext?.currentWindowGlobal?.cookieJarSettings
|
|
: this.contentDocument.cookieJarSettings;
|
|
}
|
|
|
|
get csp() {
|
|
return this.isRemoteBrowser ? this._csp : this.contentDocument.csp;
|
|
}
|
|
|
|
get contentRequestContextID() {
|
|
if (this.isRemoteBrowser) {
|
|
return this._contentRequestContextID;
|
|
}
|
|
try {
|
|
return this.contentDocument.documentLoadGroup.requestContextID;
|
|
} catch (e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
get referrerInfo() {
|
|
return this.isRemoteBrowser
|
|
? this._referrerInfo
|
|
: this.contentDocument.referrerInfo;
|
|
}
|
|
|
|
set fullZoom(val) {
|
|
if (val.toFixed(2) == this.fullZoom.toFixed(2)) {
|
|
return;
|
|
}
|
|
if (this.browsingContext.inRDMPane) {
|
|
this._rdmFullZoom = val;
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("FullZoomChange", true, false);
|
|
this.dispatchEvent(event);
|
|
} else {
|
|
this.browsingContext.fullZoom = val;
|
|
}
|
|
}
|
|
|
|
get fullZoom() {
|
|
if (this.browsingContext.inRDMPane) {
|
|
return this._rdmFullZoom;
|
|
}
|
|
return this.browsingContext.fullZoom;
|
|
}
|
|
|
|
set textZoom(val) {
|
|
if (val.toFixed(2) == this.textZoom.toFixed(2)) {
|
|
return;
|
|
}
|
|
this.browsingContext.textZoom = val;
|
|
}
|
|
|
|
get textZoom() {
|
|
return this.browsingContext.textZoom;
|
|
}
|
|
|
|
enterResponsiveMode() {
|
|
if (this.browsingContext.inRDMPane) {
|
|
return;
|
|
}
|
|
this.browsingContext.inRDMPane = true;
|
|
this._rdmFullZoom = this.browsingContext.fullZoom;
|
|
this.browsingContext.fullZoom = 1.0;
|
|
}
|
|
|
|
leaveResponsiveMode() {
|
|
if (!this.browsingContext.inRDMPane) {
|
|
return;
|
|
}
|
|
this.browsingContext.inRDMPane = false;
|
|
this.browsingContext.fullZoom = this._rdmFullZoom;
|
|
}
|
|
|
|
get isSyntheticDocument() {
|
|
if (this.isRemoteBrowser) {
|
|
return this._isSyntheticDocument;
|
|
}
|
|
return this.contentDocument.mozSyntheticDocument;
|
|
}
|
|
|
|
get hasContentOpener() {
|
|
return !!this.browsingContext.opener;
|
|
}
|
|
|
|
get mStrBundle() {
|
|
if (!this._mStrBundle) {
|
|
// need to create string bundle manually instead of using <xul:stringbundle/>
|
|
// see bug 63370 for details
|
|
this._mStrBundle = Services.strings.createBundle(
|
|
"chrome://global/locale/browser.properties"
|
|
);
|
|
}
|
|
return this._mStrBundle;
|
|
}
|
|
|
|
get audioMuted() {
|
|
return this._audioMuted;
|
|
}
|
|
|
|
get shouldHandleUnselectedTabHover() {
|
|
return this._unselectedTabHoverMessageListenerCount > 0;
|
|
}
|
|
|
|
set shouldHandleUnselectedTabHover(value) {
|
|
this._unselectedTabHoverMessageListenerCount += value ? 1 : -1;
|
|
}
|
|
|
|
get securityUI() {
|
|
return this.browsingContext.secureBrowserUI;
|
|
}
|
|
|
|
set userTypedValue(val) {
|
|
this.urlbarChangeTracker.userTyped();
|
|
this._userTypedValue = val;
|
|
}
|
|
|
|
get userTypedValue() {
|
|
return this._userTypedValue;
|
|
}
|
|
|
|
get dontPromptAndDontUnload() {
|
|
return 1;
|
|
}
|
|
|
|
get dontPromptAndUnload() {
|
|
return 2;
|
|
}
|
|
|
|
set originalURI(aURI) {
|
|
if (aURI instanceof Ci.nsIURI) {
|
|
this._originalURI = aURI;
|
|
}
|
|
}
|
|
|
|
get originalURI() {
|
|
return this._originalURI;
|
|
}
|
|
|
|
set searchTerms(val) {
|
|
this._searchTerms = val;
|
|
}
|
|
|
|
get searchTerms() {
|
|
return this._searchTerms;
|
|
}
|
|
|
|
set currentAuthPromptURI(aURI) {
|
|
this._currentAuthPromptURI = aURI;
|
|
}
|
|
|
|
get currentAuthPromptURI() {
|
|
return this._currentAuthPromptURI;
|
|
}
|
|
_wrapURIChangeCall(fn) {
|
|
if (!this.isRemoteBrowser) {
|
|
this.isNavigating = true;
|
|
try {
|
|
fn();
|
|
} finally {
|
|
this.isNavigating = false;
|
|
}
|
|
} else {
|
|
fn();
|
|
}
|
|
}
|
|
|
|
goBack(
|
|
requireUserInteraction = lazy.BrowserUtils
|
|
.navigationRequireUserInteraction
|
|
) {
|
|
var webNavigation = this.webNavigation;
|
|
if (webNavigation.canGoBack) {
|
|
this._wrapURIChangeCall(() =>
|
|
webNavigation.goBack(requireUserInteraction)
|
|
);
|
|
}
|
|
}
|
|
|
|
goForward(
|
|
requireUserInteraction = lazy.BrowserUtils
|
|
.navigationRequireUserInteraction
|
|
) {
|
|
var webNavigation = this.webNavigation;
|
|
if (webNavigation.canGoForward) {
|
|
this._wrapURIChangeCall(() =>
|
|
webNavigation.goForward(requireUserInteraction)
|
|
);
|
|
}
|
|
}
|
|
|
|
reload() {
|
|
const nsIWebNavigation = Ci.nsIWebNavigation;
|
|
const flags = nsIWebNavigation.LOAD_FLAGS_NONE;
|
|
this.reloadWithFlags(flags);
|
|
}
|
|
|
|
reloadWithFlags(aFlags) {
|
|
this.webNavigation.reload(aFlags);
|
|
}
|
|
|
|
stop() {
|
|
const nsIWebNavigation = Ci.nsIWebNavigation;
|
|
const flags = nsIWebNavigation.STOP_ALL;
|
|
this.webNavigation.stop(flags);
|
|
}
|
|
|
|
_fixLoadParamsToLoadURIOptions(params) {
|
|
let loadFlags =
|
|
params.loadFlags || params.flags || Ci.nsIWebNavigation.LOAD_FLAGS_NONE;
|
|
delete params.flags;
|
|
params.loadFlags = loadFlags;
|
|
}
|
|
|
|
/**
|
|
* throws exception for unknown schemes
|
|
*/
|
|
loadURI(uri, params = {}) {
|
|
if (!uri) {
|
|
uri = lazy.blankURI;
|
|
}
|
|
this._fixLoadParamsToLoadURIOptions(params);
|
|
this._wrapURIChangeCall(() => this.webNavigation.loadURI(uri, params));
|
|
}
|
|
|
|
/**
|
|
* throws exception for unknown schemes
|
|
*/
|
|
fixupAndLoadURIString(uriString, params = {}) {
|
|
if (!uriString) {
|
|
this.loadURI(null, params);
|
|
return;
|
|
}
|
|
this._fixLoadParamsToLoadURIOptions(params);
|
|
this._wrapURIChangeCall(() =>
|
|
this.webNavigation.fixupAndLoadURIString(uriString, params)
|
|
);
|
|
}
|
|
|
|
gotoIndex(aIndex) {
|
|
this._wrapURIChangeCall(() => this.webNavigation.gotoIndex(aIndex));
|
|
}
|
|
|
|
preserveLayers(preserve) {
|
|
if (!this.isRemoteBrowser) {
|
|
return;
|
|
}
|
|
let { frameLoader } = this;
|
|
if (frameLoader.remoteTab) {
|
|
frameLoader.remoteTab.preserveLayers(preserve);
|
|
}
|
|
}
|
|
|
|
deprioritize() {
|
|
if (!this.isRemoteBrowser) {
|
|
return;
|
|
}
|
|
let { remoteTab } = this.frameLoader;
|
|
if (remoteTab) {
|
|
remoteTab.priorityHint = false;
|
|
remoteTab.deprioritize();
|
|
}
|
|
}
|
|
|
|
getTabBrowser() {
|
|
if (this?.ownerGlobal?.gBrowser?.getTabForBrowser(this)) {
|
|
return this.ownerGlobal.gBrowser;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
addProgressListener(aListener, aNotifyMask) {
|
|
if (!aNotifyMask) {
|
|
aNotifyMask = Ci.nsIWebProgress.NOTIFY_ALL;
|
|
}
|
|
|
|
this.webProgress.addProgressListener(aListener, aNotifyMask);
|
|
}
|
|
|
|
removeProgressListener(aListener) {
|
|
this.webProgress.removeProgressListener(aListener);
|
|
}
|
|
|
|
onPageHide(aEvent) {
|
|
// If we're browsing from the tab crashed UI to a URI that keeps
|
|
// this browser non-remote, we'll handle that here.
|
|
lazy.SessionStore?.maybeExitCrashedState(this);
|
|
|
|
if (!this.docShell || !this.fastFind) {
|
|
return;
|
|
}
|
|
var tabBrowser = this.getTabBrowser();
|
|
if (
|
|
!tabBrowser ||
|
|
!("fastFind" in tabBrowser) ||
|
|
tabBrowser.selectedBrowser == this
|
|
) {
|
|
this.fastFind.setDocShell(this.docShell);
|
|
}
|
|
}
|
|
|
|
audioPlaybackStarted() {
|
|
if (this._audioMuted) {
|
|
return;
|
|
}
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DOMAudioPlaybackStarted", true, false);
|
|
this.dispatchEvent(event);
|
|
}
|
|
|
|
audioPlaybackStopped() {
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DOMAudioPlaybackStopped", true, false);
|
|
this.dispatchEvent(event);
|
|
}
|
|
|
|
/**
|
|
* When the pref "media.block-autoplay-until-in-foreground" is on,
|
|
* Gecko delays starting playback of media resources in tabs until the
|
|
* tab has been in the foreground or resumed by tab's play tab icon.
|
|
* - When Gecko delays starting playback of a media resource in a window,
|
|
* it sends a message to call activeMediaBlockStarted(). This causes the
|
|
* tab audio indicator to show.
|
|
* - When a tab is foregrounded, Gecko starts playing all delayed media
|
|
* resources in that tab, and sends a message to call
|
|
* activeMediaBlockStopped(). This causes the tab audio indicator to hide.
|
|
*/
|
|
activeMediaBlockStarted() {
|
|
this._hasAnyPlayingMediaBeenBlocked = true;
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DOMAudioPlaybackBlockStarted", true, false);
|
|
this.dispatchEvent(event);
|
|
}
|
|
|
|
activeMediaBlockStopped() {
|
|
if (!this._hasAnyPlayingMediaBeenBlocked) {
|
|
return;
|
|
}
|
|
this._hasAnyPlayingMediaBeenBlocked = false;
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DOMAudioPlaybackBlockStopped", true, false);
|
|
this.dispatchEvent(event);
|
|
}
|
|
|
|
mute(transientState) {
|
|
if (!transientState) {
|
|
this._audioMuted = true;
|
|
}
|
|
let context = this.frameLoader.browsingContext;
|
|
context.notifyMediaMutedChanged(true);
|
|
}
|
|
|
|
unmute() {
|
|
this._audioMuted = false;
|
|
let context = this.frameLoader.browsingContext;
|
|
context.notifyMediaMutedChanged(false);
|
|
}
|
|
|
|
resumeMedia() {
|
|
this.frameLoader.browsingContext.notifyStartDelayedAutoplayMedia();
|
|
if (this._hasAnyPlayingMediaBeenBlocked) {
|
|
this._hasAnyPlayingMediaBeenBlocked = false;
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DOMAudioPlaybackBlockStopped", true, false);
|
|
this.dispatchEvent(event);
|
|
}
|
|
}
|
|
|
|
unselectedTabHover(hovered) {
|
|
if (!this.shouldHandleUnselectedTabHover) {
|
|
return;
|
|
}
|
|
this.sendMessageToActor(
|
|
"Browser:UnselectedTabHover",
|
|
{
|
|
hovered,
|
|
},
|
|
"UnselectedTabHover",
|
|
"roots"
|
|
);
|
|
}
|
|
|
|
didStartLoadSinceLastUserTyping() {
|
|
return (
|
|
!this.isNavigating &&
|
|
this.urlbarChangeTracker._startedLoadSinceLastUserTyping
|
|
);
|
|
}
|
|
|
|
construct() {
|
|
elementsToDestroyOnUnload.add(this);
|
|
this.resetFields();
|
|
this.mInitialized = true;
|
|
if (this.isRemoteBrowser) {
|
|
/*
|
|
* Don't try to send messages from this function. The message manager for
|
|
* the <browser> element may not be initialized yet.
|
|
*/
|
|
|
|
this._remoteWebNavigation = new lazy.RemoteWebNavigation(this);
|
|
|
|
// Initialize contentPrincipal to the about:blank principal for this loadcontext
|
|
let aboutBlank = Services.io.newURI("about:blank");
|
|
let ssm = Services.scriptSecurityManager;
|
|
this._contentPrincipal = ssm.getLoadContextContentPrincipal(
|
|
aboutBlank,
|
|
this.loadContext
|
|
);
|
|
this._contentPartitionedPrincipal = this._contentPrincipal;
|
|
// CSP for about:blank is null; if we ever change _contentPrincipal above,
|
|
// we should re-evaluate the CSP here.
|
|
this._csp = null;
|
|
|
|
if (!this.hasAttribute("disablehistory")) {
|
|
Services.obs.addObserver(
|
|
this.observer,
|
|
"browser:purge-session-history",
|
|
true
|
|
);
|
|
}
|
|
}
|
|
|
|
try {
|
|
// |webNavigation.sessionHistory| will have been set by the frame
|
|
// loader when creating the docShell as long as this xul:browser
|
|
// doesn't have the 'disablehistory' attribute set.
|
|
if (this.docShell && this.webNavigation.sessionHistory) {
|
|
Services.obs.addObserver(
|
|
this.observer,
|
|
"browser:purge-session-history",
|
|
true
|
|
);
|
|
|
|
// enable global history if we weren't told otherwise
|
|
if (
|
|
!this.hasAttribute("disableglobalhistory") &&
|
|
!this.isRemoteBrowser
|
|
) {
|
|
try {
|
|
this.docShell.browsingContext.useGlobalHistory = true;
|
|
} catch (ex) {
|
|
// This can occur if the Places database is locked
|
|
console.error("Error enabling browser global history: ", ex);
|
|
}
|
|
}
|
|
}
|
|
} catch (e) {
|
|
console.error(e);
|
|
}
|
|
try {
|
|
// Ensures the securityUI is initialized.
|
|
var securityUI = this.securityUI; // eslint-disable-line no-unused-vars
|
|
} catch (e) {}
|
|
|
|
if (!this.isRemoteBrowser) {
|
|
this._remoteWebNavigation = null;
|
|
this.addEventListener("pagehide", this.onPageHide, true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This is necessary because custom elements don't have a "real" destructor.
|
|
* This method is called explicitly by tabbrowser, when changing remoteness,
|
|
* and when we're disconnected or the window unloads.
|
|
*/
|
|
destroy() {
|
|
elementsToDestroyOnUnload.delete(this);
|
|
|
|
// If we're browsing from the tab crashed UI to a URI that causes the tab
|
|
// to go remote again, we catch this here, because swapping out the
|
|
// non-remote browser for a remote one doesn't cause the pagehide event
|
|
// to be fired. Previously, we used to do this in the frame script's
|
|
// unload handler.
|
|
lazy.SessionStore?.maybeExitCrashedState(this);
|
|
|
|
// Make sure that any open select is closed.
|
|
let menulist = document.getElementById("ContentSelectDropdown");
|
|
if (menulist?.open) {
|
|
lazy.SelectParentHelper.hide(menulist, this);
|
|
}
|
|
|
|
this.resetFields();
|
|
|
|
if (!this.mInitialized) {
|
|
return;
|
|
}
|
|
|
|
this.mInitialized = false;
|
|
this.lastURI = null;
|
|
|
|
if (!this.isRemoteBrowser) {
|
|
this.removeEventListener("pagehide", this.onPageHide, true);
|
|
}
|
|
}
|
|
|
|
updateForStateChange(aCharset, aDocumentURI, aContentType) {
|
|
if (this.isRemoteBrowser && this.messageManager) {
|
|
if (aCharset != null) {
|
|
this._characterSet = aCharset;
|
|
}
|
|
|
|
if (aDocumentURI != null) {
|
|
this._documentURI = aDocumentURI;
|
|
}
|
|
|
|
if (aContentType != null) {
|
|
this._documentContentType = aContentType;
|
|
}
|
|
}
|
|
}
|
|
|
|
updateWebNavigationForLocationChange(aCanGoBack, aCanGoForward) {
|
|
if (
|
|
this.isRemoteBrowser &&
|
|
this.messageManager &&
|
|
!Services.appinfo.sessionHistoryInParent
|
|
) {
|
|
this._remoteWebNavigation._canGoBack = aCanGoBack;
|
|
this._remoteWebNavigation._canGoForward = aCanGoForward;
|
|
}
|
|
}
|
|
|
|
updateForLocationChange(
|
|
aLocation,
|
|
aCharset,
|
|
aMayEnableCharacterEncodingMenu,
|
|
aDocumentURI,
|
|
aTitle,
|
|
aContentPrincipal,
|
|
aContentPartitionedPrincipal,
|
|
aCSP,
|
|
aReferrerInfo,
|
|
aIsSynthetic,
|
|
aHaveRequestContextID,
|
|
aRequestContextID,
|
|
aContentType
|
|
) {
|
|
if (this.isRemoteBrowser && this.messageManager) {
|
|
if (aCharset != null) {
|
|
this._characterSet = aCharset;
|
|
this._mayEnableCharacterEncodingMenu = aMayEnableCharacterEncodingMenu;
|
|
}
|
|
|
|
if (aContentType != null) {
|
|
this._documentContentType = aContentType;
|
|
}
|
|
|
|
this._remoteWebNavigation._currentURI = aLocation;
|
|
this._documentURI = aDocumentURI;
|
|
this._contentPrincipal = aContentPrincipal;
|
|
this._contentPartitionedPrincipal = aContentPartitionedPrincipal;
|
|
this._csp = aCSP;
|
|
this._referrerInfo = aReferrerInfo;
|
|
this._isSyntheticDocument = aIsSynthetic;
|
|
this._contentRequestContextID = aHaveRequestContextID
|
|
? aRequestContextID
|
|
: null;
|
|
}
|
|
}
|
|
|
|
purgeSessionHistory() {
|
|
if (this.isRemoteBrowser && !Services.appinfo.sessionHistoryInParent) {
|
|
this._remoteWebNavigation._canGoBack = false;
|
|
this._remoteWebNavigation._canGoForward = false;
|
|
}
|
|
|
|
try {
|
|
if (Services.appinfo.sessionHistoryInParent) {
|
|
let sessionHistory = this.browsingContext?.sessionHistory;
|
|
if (!sessionHistory) {
|
|
return;
|
|
}
|
|
|
|
// place the entry at current index at the end of the history list, so it won't get removed
|
|
if (sessionHistory.index < sessionHistory.count - 1) {
|
|
let indexEntry = sessionHistory.getEntryAtIndex(
|
|
sessionHistory.index
|
|
);
|
|
sessionHistory.addEntry(indexEntry, true);
|
|
}
|
|
|
|
let purge = sessionHistory.count;
|
|
if (
|
|
this.browsingContext.currentWindowGlobal.documentURI !=
|
|
"about:blank"
|
|
) {
|
|
--purge; // Don't remove the page the user's staring at from shistory
|
|
}
|
|
|
|
if (purge > 0) {
|
|
sessionHistory.purgeHistory(purge);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
this.sendMessageToActor(
|
|
"Browser:PurgeSessionHistory",
|
|
{},
|
|
"PurgeSessionHistory",
|
|
"roots"
|
|
);
|
|
} catch (ex) {
|
|
// This can throw if the browser has started to go away.
|
|
if (ex.result != Cr.NS_ERROR_NOT_INITIALIZED) {
|
|
throw ex;
|
|
}
|
|
}
|
|
}
|
|
|
|
createAboutBlankContentViewer(aPrincipal, aPartitionedPrincipal) {
|
|
let principal = lazy.BrowserUtils.principalWithMatchingOA(
|
|
aPrincipal,
|
|
this.contentPrincipal
|
|
);
|
|
let partitionedPrincipal = lazy.BrowserUtils.principalWithMatchingOA(
|
|
aPartitionedPrincipal,
|
|
this.contentPartitionedPrincipal
|
|
);
|
|
|
|
if (this.isRemoteBrowser) {
|
|
this.frameLoader.remoteTab.createAboutBlankContentViewer(
|
|
principal,
|
|
partitionedPrincipal
|
|
);
|
|
} else {
|
|
this.docShell.createAboutBlankContentViewer(
|
|
principal,
|
|
partitionedPrincipal
|
|
);
|
|
}
|
|
}
|
|
|
|
_acquireAutoScrollWakeLock() {
|
|
const pm = Cc["@mozilla.org/power/powermanagerservice;1"].getService(
|
|
Ci.nsIPowerManagerService
|
|
);
|
|
this._autoScrollWakelock = pm.newWakeLock("autoscroll", window);
|
|
}
|
|
|
|
_releaseAutoScrollWakeLock() {
|
|
if (this._autoScrollWakelock) {
|
|
try {
|
|
this._autoScrollWakelock.unlock();
|
|
} catch (e) {
|
|
// Ignore error since wake lock is already unlocked
|
|
}
|
|
this._autoScrollWakelock = null;
|
|
}
|
|
}
|
|
|
|
stopScroll() {
|
|
if (this._autoScrollBrowsingContext) {
|
|
window.removeEventListener("mousemove", this, true);
|
|
window.removeEventListener("mousedown", this, true);
|
|
window.removeEventListener("mouseup", this, true);
|
|
window.removeEventListener("DOMMouseScroll", this, true);
|
|
window.removeEventListener("contextmenu", this, true);
|
|
window.removeEventListener("keydown", this, true);
|
|
window.removeEventListener("keypress", this, true);
|
|
window.removeEventListener("keyup", this, true);
|
|
|
|
let autoScrollWnd = this._autoScrollBrowsingContext.currentWindowGlobal;
|
|
if (autoScrollWnd) {
|
|
autoScrollWnd
|
|
.getActor("AutoScroll")
|
|
.sendAsyncMessage("Autoscroll:Stop", {});
|
|
}
|
|
|
|
try {
|
|
Services.obs.removeObserver(this.observer, "apz:cancel-autoscroll");
|
|
} catch (ex) {
|
|
// It's not clear why this sometimes throws an exception
|
|
}
|
|
|
|
if (this._autoScrollScrollId != null) {
|
|
this._autoScrollBrowsingContext.stopApzAutoscroll(
|
|
this._autoScrollScrollId,
|
|
this._autoScrollPresShellId
|
|
);
|
|
|
|
this._autoScrollScrollId = null;
|
|
this._autoScrollPresShellId = null;
|
|
}
|
|
|
|
this._autoScrollBrowsingContext = null;
|
|
this._releaseAutoScrollWakeLock();
|
|
}
|
|
}
|
|
|
|
_getAndMaybeCreateAutoScrollPopup() {
|
|
let autoscrollPopup = document.getElementById("autoscroller");
|
|
if (!autoscrollPopup) {
|
|
autoscrollPopup = document.createXULElement("panel");
|
|
autoscrollPopup.className = "autoscroller";
|
|
autoscrollPopup.setAttribute("consumeoutsideclicks", "true");
|
|
autoscrollPopup.setAttribute("rolluponmousewheel", "true");
|
|
autoscrollPopup.id = "autoscroller";
|
|
}
|
|
|
|
return autoscrollPopup;
|
|
}
|
|
|
|
startScroll({
|
|
scrolldir,
|
|
screenXDevPx,
|
|
screenYDevPx,
|
|
scrollId,
|
|
presShellId,
|
|
browsingContext,
|
|
}) {
|
|
if (!this.autoscrollEnabled) {
|
|
return { autoscrollEnabled: false, usingApz: false };
|
|
}
|
|
|
|
// The popup size is 32px for the circle plus space for a 4px box-shadow
|
|
// on each side.
|
|
const POPUP_SIZE = 40;
|
|
if (!this._autoScrollPopup) {
|
|
this._autoScrollPopup = this._getAndMaybeCreateAutoScrollPopup();
|
|
document.documentElement.appendChild(this._autoScrollPopup);
|
|
this._autoScrollPopup.removeAttribute("hidden");
|
|
this._autoScrollPopup.setAttribute("noautofocus", "true");
|
|
this._autoScrollPopup.style.height = POPUP_SIZE + "px";
|
|
this._autoScrollPopup.style.width = POPUP_SIZE + "px";
|
|
this._autoScrollPopup.style.margin = -POPUP_SIZE / 2 + "px";
|
|
}
|
|
|
|
// In desktop pixels.
|
|
let screenXDesktopPx = screenXDevPx / window.desktopToDeviceScale;
|
|
let screenYDesktopPx = screenYDevPx / window.desktopToDeviceScale;
|
|
|
|
let screenManager = Cc["@mozilla.org/gfx/screenmanager;1"].getService(
|
|
Ci.nsIScreenManager
|
|
);
|
|
let screen = screenManager.screenForRect(
|
|
screenXDesktopPx,
|
|
screenYDesktopPx,
|
|
1,
|
|
1
|
|
);
|
|
|
|
// we need these attributes so themers don't need to create per-platform packages
|
|
if (screen.colorDepth > 8) {
|
|
// need high color for transparency
|
|
// Exclude second-rate platforms
|
|
this._autoScrollPopup.setAttribute(
|
|
"transparent",
|
|
!/BeOS|OS\/2/.test(navigator.appVersion)
|
|
);
|
|
// Enable translucency on Windows and Mac
|
|
this._autoScrollPopup.setAttribute(
|
|
"translucent",
|
|
AppConstants.platform == "win" || AppConstants.platform == "macosx"
|
|
);
|
|
}
|
|
|
|
this._autoScrollPopup.setAttribute("scrolldir", scrolldir);
|
|
this._autoScrollPopup.addEventListener("popuphidden", this, true);
|
|
|
|
// In CSS pixels
|
|
let popupX;
|
|
let popupY;
|
|
{
|
|
let cssToDesktopScale =
|
|
window.devicePixelRatio / window.desktopToDeviceScale;
|
|
|
|
// Sanitize screenX/screenY for available screen size with half the size
|
|
// of the popup removed. The popup uses negative margins to center on the
|
|
// coordinates we pass. Use desktop pixels to deal correctly with
|
|
// multi-monitor / multi-dpi scenarios.
|
|
let left = {},
|
|
top = {},
|
|
width = {},
|
|
height = {};
|
|
screen.GetAvailRectDisplayPix(left, top, width, height);
|
|
|
|
let popupSizeDesktopPx = POPUP_SIZE * cssToDesktopScale;
|
|
let minX = left.value + 0.5 * popupSizeDesktopPx;
|
|
let maxX = left.value + width.value - 0.5 * popupSizeDesktopPx;
|
|
let minY = top.value + 0.5 * popupSizeDesktopPx;
|
|
let maxY = top.value + height.value - 0.5 * popupSizeDesktopPx;
|
|
|
|
popupX =
|
|
Math.max(minX, Math.min(maxX, screenXDesktopPx)) / cssToDesktopScale;
|
|
popupY =
|
|
Math.max(minY, Math.min(maxY, screenYDesktopPx)) / cssToDesktopScale;
|
|
}
|
|
|
|
// In CSS pixels.
|
|
let screenX = screenXDevPx / window.devicePixelRatio;
|
|
let screenY = screenYDevPx / window.devicePixelRatio;
|
|
|
|
this._autoScrollPopup.openPopupAtScreen(popupX, popupY);
|
|
this._ignoreMouseEvents = true;
|
|
this._startX = screenX;
|
|
this._startY = screenY;
|
|
this._autoScrollBrowsingContext = browsingContext;
|
|
this._acquireAutoScrollWakeLock();
|
|
|
|
window.addEventListener("mousemove", this, true);
|
|
window.addEventListener("mousedown", this, true);
|
|
window.addEventListener("mouseup", this, true);
|
|
window.addEventListener("DOMMouseScroll", this, true);
|
|
window.addEventListener("contextmenu", this, true);
|
|
window.addEventListener("keydown", this, true);
|
|
window.addEventListener("keypress", this, true);
|
|
window.addEventListener("keyup", this, true);
|
|
|
|
let usingApz = false;
|
|
|
|
if (
|
|
scrollId != null &&
|
|
this.mPrefs.getBoolPref("apz.autoscroll.enabled", false)
|
|
) {
|
|
// If APZ is handling the autoscroll, it may decide to cancel
|
|
// it of its own accord, so register an observer to allow it
|
|
// to notify us of that.
|
|
Services.obs.addObserver(this.observer, "apz:cancel-autoscroll", true);
|
|
|
|
usingApz = browsingContext.startApzAutoscroll(
|
|
screenXDevPx,
|
|
screenYDevPx,
|
|
scrollId,
|
|
presShellId
|
|
);
|
|
|
|
// Save the IDs for later
|
|
this._autoScrollScrollId = scrollId;
|
|
this._autoScrollPresShellId = presShellId;
|
|
}
|
|
|
|
return { autoscrollEnabled: true, usingApz };
|
|
}
|
|
|
|
cancelScroll() {
|
|
this._autoScrollPopup.hidePopup();
|
|
}
|
|
|
|
handleEvent(aEvent) {
|
|
if (this._autoScrollBrowsingContext) {
|
|
switch (aEvent.type) {
|
|
case "mousemove": {
|
|
var x = aEvent.screenX - this._startX;
|
|
var y = aEvent.screenY - this._startY;
|
|
|
|
if (
|
|
x > this._AUTOSCROLL_SNAP ||
|
|
x < -this._AUTOSCROLL_SNAP ||
|
|
y > this._AUTOSCROLL_SNAP ||
|
|
y < -this._AUTOSCROLL_SNAP
|
|
) {
|
|
this._ignoreMouseEvents = false;
|
|
}
|
|
break;
|
|
}
|
|
case "mouseup":
|
|
case "mousedown":
|
|
// The following mouse click/auxclick event on the autoscroller
|
|
// shouldn't be fired in web content for compatibility with Chrome.
|
|
aEvent.preventClickEvent();
|
|
// fallthrough
|
|
case "contextmenu": {
|
|
if (!this._ignoreMouseEvents) {
|
|
// Use a timeout to prevent the mousedown from opening the popup again.
|
|
// Ideally, we could use preventDefault here, but contenteditable
|
|
// and middlemouse paste don't interact well. See bug 1188536.
|
|
setTimeout(() => this._autoScrollPopup.hidePopup(), 0);
|
|
}
|
|
this._ignoreMouseEvents = false;
|
|
break;
|
|
}
|
|
case "DOMMouseScroll": {
|
|
this._autoScrollPopup.hidePopup();
|
|
aEvent.preventDefault();
|
|
break;
|
|
}
|
|
case "popuphidden": {
|
|
// TODO: When the autoscroller is closed by clicking outside of it,
|
|
// we need to prevent following click event for compatibility
|
|
// with Chrome. However, there is no way to do that for now.
|
|
this._autoScrollPopup.removeEventListener(
|
|
"popuphidden",
|
|
this,
|
|
true
|
|
);
|
|
this.stopScroll();
|
|
break;
|
|
}
|
|
case "keydown": {
|
|
if (aEvent.keyCode == aEvent.DOM_VK_ESCAPE) {
|
|
// the escape key will be processed by
|
|
// nsXULPopupManager::KeyDown and the panel will be closed.
|
|
// So, don't consume the key event here.
|
|
break;
|
|
}
|
|
// don't break here. we need to eat keydown events.
|
|
}
|
|
// fall through
|
|
case "keypress":
|
|
case "keyup": {
|
|
// All keyevents should be eaten here during autoscrolling.
|
|
aEvent.stopPropagation();
|
|
aEvent.preventDefault();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
closeBrowser() {
|
|
// The request comes from a XPCOM component, we'd want to redirect
|
|
// the request to tabbrowser.
|
|
let tabbrowser = this.getTabBrowser();
|
|
if (tabbrowser) {
|
|
let tab = tabbrowser.getTabForBrowser(this);
|
|
if (tab) {
|
|
tabbrowser.removeTab(tab);
|
|
return;
|
|
}
|
|
}
|
|
|
|
throw new Error(
|
|
"Closing a browser which was not attached to a tabbrowser is unsupported."
|
|
);
|
|
}
|
|
|
|
swapBrowsers(aOtherBrowser) {
|
|
// The request comes from a XPCOM component, we'd want to redirect
|
|
// the request to tabbrowser so tabbrowser will be setup correctly,
|
|
// and it will eventually call swapDocShells.
|
|
let ourTabBrowser = this.getTabBrowser();
|
|
let otherTabBrowser = aOtherBrowser.getTabBrowser();
|
|
if (ourTabBrowser && otherTabBrowser) {
|
|
let ourTab = ourTabBrowser.getTabForBrowser(this);
|
|
let otherTab = otherTabBrowser.getTabForBrowser(aOtherBrowser);
|
|
ourTabBrowser.swapBrowsers(ourTab, otherTab);
|
|
return;
|
|
}
|
|
|
|
// One of us is not connected to a tabbrowser, so just swap.
|
|
this.swapDocShells(aOtherBrowser);
|
|
}
|
|
|
|
swapDocShells(aOtherBrowser) {
|
|
if (this.isRemoteBrowser != aOtherBrowser.isRemoteBrowser) {
|
|
throw new Error(
|
|
"Can only swap docshells between browsers in the same process."
|
|
);
|
|
}
|
|
|
|
// Give others a chance to swap state.
|
|
// IMPORTANT: Since a swapDocShells call does not swap the messageManager
|
|
// instances attached to a browser to aOtherBrowser, others
|
|
// will need to add the message listeners to the new
|
|
// messageManager.
|
|
// This is not a bug in swapDocShells or the FrameLoader,
|
|
// merely a design decision: If message managers were swapped,
|
|
// so that no new listeners were needed, the new
|
|
// aOtherBrowser.messageManager would have listeners pointing
|
|
// to the JS global of the current browser, which would rather
|
|
// easily create leaks while swapping.
|
|
// IMPORTANT2: When the current browser element is removed from DOM,
|
|
// which is quite common after a swapDocShells call, its
|
|
// frame loader is destroyed, and that destroys the relevant
|
|
// message manager, which will remove the listeners.
|
|
let event = new CustomEvent("SwapDocShells", { detail: aOtherBrowser });
|
|
this.dispatchEvent(event);
|
|
event = new CustomEvent("SwapDocShells", { detail: this });
|
|
aOtherBrowser.dispatchEvent(event);
|
|
|
|
// We need to swap fields that are tied to our docshell or related to
|
|
// the loaded page
|
|
// Fields which are built as a result of notifactions (pageshow/hide,
|
|
// DOMLinkAdded/Removed, onStateChange) should not be swapped here,
|
|
// because these notifications are dispatched again once the docshells
|
|
// are swapped.
|
|
var fieldsToSwap = ["_webBrowserFind", "_rdmFullZoom"];
|
|
|
|
if (this.isRemoteBrowser) {
|
|
fieldsToSwap.push(
|
|
...[
|
|
"_remoteWebNavigation",
|
|
"_remoteFinder",
|
|
"_documentURI",
|
|
"_documentContentType",
|
|
"_characterSet",
|
|
"_mayEnableCharacterEncodingMenu",
|
|
"_contentPrincipal",
|
|
"_contentPartitionedPrincipal",
|
|
"_isSyntheticDocument",
|
|
"_originalURI",
|
|
]
|
|
);
|
|
}
|
|
|
|
var ourFieldValues = {};
|
|
var otherFieldValues = {};
|
|
for (let field of fieldsToSwap) {
|
|
ourFieldValues[field] = this[field];
|
|
otherFieldValues[field] = aOtherBrowser[field];
|
|
}
|
|
|
|
if (window.PopupNotifications) {
|
|
PopupNotifications._swapBrowserNotifications(aOtherBrowser, this);
|
|
}
|
|
|
|
try {
|
|
this.swapFrameLoaders(aOtherBrowser);
|
|
} catch (ex) {
|
|
// This may not be implemented for browser elements that are not
|
|
// attached to a BrowserDOMWindow.
|
|
}
|
|
|
|
for (let field of fieldsToSwap) {
|
|
this[field] = otherFieldValues[field];
|
|
aOtherBrowser[field] = ourFieldValues[field];
|
|
}
|
|
|
|
if (!this.isRemoteBrowser) {
|
|
// Null the current nsITypeAheadFind instances so that they're
|
|
// lazily re-created on access. We need to do this because they
|
|
// might have attached the wrong docShell.
|
|
this._fastFind = aOtherBrowser._fastFind = null;
|
|
} else {
|
|
// Rewire the remote listeners
|
|
this._remoteWebNavigation.swapBrowser(this);
|
|
aOtherBrowser._remoteWebNavigation.swapBrowser(aOtherBrowser);
|
|
|
|
if (this._remoteFinder) {
|
|
this._remoteFinder.swapBrowser(this);
|
|
}
|
|
if (aOtherBrowser._remoteFinder) {
|
|
aOtherBrowser._remoteFinder.swapBrowser(aOtherBrowser);
|
|
}
|
|
}
|
|
|
|
event = new CustomEvent("EndSwapDocShells", { detail: aOtherBrowser });
|
|
this.dispatchEvent(event);
|
|
event = new CustomEvent("EndSwapDocShells", { detail: this });
|
|
aOtherBrowser.dispatchEvent(event);
|
|
}
|
|
|
|
getInPermitUnload(aCallback) {
|
|
if (this.isRemoteBrowser) {
|
|
let { remoteTab } = this.frameLoader;
|
|
if (!remoteTab) {
|
|
// If we're crashed, we're definitely not in this state anymore.
|
|
aCallback(false);
|
|
return;
|
|
}
|
|
|
|
aCallback(
|
|
this._inPermitUnload.has(this.browsingContext.currentWindowGlobal)
|
|
);
|
|
return;
|
|
}
|
|
|
|
if (!this.docShell || !this.docShell.contentViewer) {
|
|
aCallback(false);
|
|
return;
|
|
}
|
|
aCallback(this.docShell.contentViewer.inPermitUnload);
|
|
}
|
|
|
|
async asyncPermitUnload(action) {
|
|
let wgp = this.browsingContext.currentWindowGlobal;
|
|
if (this._inPermitUnload.has(wgp)) {
|
|
throw new Error("permitUnload is already running for this tab.");
|
|
}
|
|
|
|
this._inPermitUnload.add(wgp);
|
|
try {
|
|
let permitUnload = await wgp.permitUnload(
|
|
action,
|
|
lazyPrefs.unloadTimeoutMs
|
|
);
|
|
return { permitUnload };
|
|
} finally {
|
|
this._inPermitUnload.delete(wgp);
|
|
}
|
|
}
|
|
|
|
get hasBeforeUnload() {
|
|
function hasBeforeUnload(bc) {
|
|
if (bc.currentWindowContext?.hasBeforeUnload) {
|
|
return true;
|
|
}
|
|
return bc.children.some(hasBeforeUnload);
|
|
}
|
|
return hasBeforeUnload(this.browsingContext);
|
|
}
|
|
|
|
permitUnload(action) {
|
|
if (this.isRemoteBrowser) {
|
|
if (!this.hasBeforeUnload) {
|
|
return { permitUnload: true };
|
|
}
|
|
|
|
// Don't bother asking if this browser is hung:
|
|
if (
|
|
lazy.ProcessHangMonitor?.findActiveReport(this) ||
|
|
lazy.ProcessHangMonitor?.findPausedReport(this)
|
|
) {
|
|
return { permitUnload: true };
|
|
}
|
|
|
|
let result;
|
|
let success;
|
|
|
|
this.asyncPermitUnload(action).then(
|
|
val => {
|
|
result = val;
|
|
success = true;
|
|
},
|
|
err => {
|
|
result = err;
|
|
success = false;
|
|
}
|
|
);
|
|
|
|
// The permitUnload() promise will, alas, not call its resolution
|
|
// callbacks after the browser window the promise lives in has closed,
|
|
// so we have to check for that case explicitly.
|
|
Services.tm.spinEventLoopUntilOrQuit(
|
|
"browser-custom-element.js:permitUnload",
|
|
() => window.closed || success !== undefined
|
|
);
|
|
if (success) {
|
|
return result;
|
|
}
|
|
throw result;
|
|
}
|
|
|
|
if (!this.docShell || !this.docShell.contentViewer) {
|
|
return { permitUnload: true };
|
|
}
|
|
return {
|
|
permitUnload: this.docShell.contentViewer.permitUnload(),
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Gets a screenshot of this browser as an ImageBitmap.
|
|
*
|
|
* @param {Number} x
|
|
* The x coordinate of the region from the underlying document to capture
|
|
* as a screenshot. This is ignored if fullViewport is true.
|
|
* @param {Number} y
|
|
* The y coordinate of the region from the underlying document to capture
|
|
* as a screenshot. This is ignored if fullViewport is true.
|
|
* @param {Number} w
|
|
* The width of the region from the underlying document to capture as a
|
|
* screenshot. This is ignored if fullViewport is true.
|
|
* @param {Number} h
|
|
* The height of the region from the underlying document to capture as a
|
|
* screenshot. This is ignored if fullViewport is true.
|
|
* @param {Number} scale
|
|
* The scale factor for the captured screenshot. See the documentation for
|
|
* WindowGlobalParent.drawSnapshot for more detail.
|
|
* @param {String} backgroundColor
|
|
* The default background color for the captured screenshot. See the
|
|
* documentation for WindowGlobalParent.drawSnapshot for more detail.
|
|
* @param {boolean|undefined} fullViewport
|
|
* True if the viewport rect should be captured. If this is true, the
|
|
* x, y, w and h parameters are ignored. Defaults to false.
|
|
* @returns {Promise}
|
|
* @resolves {ImageBitmap}
|
|
*/
|
|
async drawSnapshot(
|
|
x,
|
|
y,
|
|
w,
|
|
h,
|
|
scale,
|
|
backgroundColor,
|
|
fullViewport = false
|
|
) {
|
|
let rect = fullViewport ? null : new DOMRect(x, y, w, h);
|
|
try {
|
|
return this.browsingContext.currentWindowGlobal.drawSnapshot(
|
|
rect,
|
|
scale,
|
|
backgroundColor
|
|
);
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
dropLinks(aLinks, aTriggeringPrincipal) {
|
|
if (!this.droppedLinkHandler) {
|
|
return false;
|
|
}
|
|
let links = [];
|
|
for (let i = 0; i < aLinks.length; i += 3) {
|
|
links.push({
|
|
url: aLinks[i],
|
|
name: aLinks[i + 1],
|
|
type: aLinks[i + 2],
|
|
});
|
|
}
|
|
this.droppedLinkHandler(null, links, aTriggeringPrincipal);
|
|
return true;
|
|
}
|
|
|
|
getContentBlockingLog() {
|
|
let windowGlobal = this.browsingContext.currentWindowGlobal;
|
|
if (!windowGlobal) {
|
|
return null;
|
|
}
|
|
return windowGlobal.contentBlockingLog;
|
|
}
|
|
|
|
getContentBlockingEvents() {
|
|
let windowGlobal = this.browsingContext.currentWindowGlobal;
|
|
if (!windowGlobal) {
|
|
return 0;
|
|
}
|
|
return windowGlobal.contentBlockingEvents;
|
|
}
|
|
|
|
// Send an asynchronous message to the remote child via an actor.
|
|
// Note: use this only for messages through an actor. For old-style
|
|
// messages, use the message manager.
|
|
// The value of the scope argument determines which browsing contexts
|
|
// are sent to:
|
|
// 'all' - send to actors associated with all descendant child frames.
|
|
// 'roots' - send only to actors associated with process roots.
|
|
// undefined/'' - send only to the top-level actor and not any descendants.
|
|
sendMessageToActor(messageName, args, actorName, scope) {
|
|
if (!this.frameLoader) {
|
|
return;
|
|
}
|
|
|
|
function sendToChildren(browsingContext, childScope) {
|
|
let windowGlobal = browsingContext.currentWindowGlobal;
|
|
// If 'roots' is set, only send if windowGlobal.isProcessRoot is true.
|
|
if (
|
|
windowGlobal &&
|
|
(childScope != "roots" || windowGlobal.isProcessRoot)
|
|
) {
|
|
windowGlobal.getActor(actorName).sendAsyncMessage(messageName, args);
|
|
}
|
|
|
|
// Iterate as long as scope in assigned. Note that we use the original
|
|
// passed in scope, not childScope here.
|
|
if (scope) {
|
|
for (let context of browsingContext.children) {
|
|
sendToChildren(context, scope);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Pass no second argument to always send to the top-level browsing context.
|
|
sendToChildren(this.browsingContext);
|
|
}
|
|
|
|
enterModalState() {
|
|
this.sendMessageToActor("EnterModalState", {}, "BrowserElement", "roots");
|
|
}
|
|
|
|
leaveModalState() {
|
|
this.sendMessageToActor(
|
|
"LeaveModalState",
|
|
{ forceLeave: true },
|
|
"BrowserElement",
|
|
"roots"
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Can be called for a window with or without modal state.
|
|
* If the window is not in modal state, this is a no-op.
|
|
*/
|
|
maybeLeaveModalState() {
|
|
this.sendMessageToActor(
|
|
"LeaveModalState",
|
|
{ forceLeave: false },
|
|
"BrowserElement",
|
|
"roots"
|
|
);
|
|
}
|
|
|
|
getDevicePermissionOrigins(key) {
|
|
if (typeof key !== "string" || key.length === 0) {
|
|
throw new Error("Key must be non empty string.");
|
|
}
|
|
if (!this._devicePermissionOrigins) {
|
|
this._devicePermissionOrigins = new Map();
|
|
}
|
|
let origins = this._devicePermissionOrigins.get(key);
|
|
if (!origins) {
|
|
origins = new Set();
|
|
this._devicePermissionOrigins.set(key, origins);
|
|
}
|
|
return origins;
|
|
}
|
|
|
|
// This method is replaced by frontend code in order to delay performing the
|
|
// process switch until some async operatin is completed.
|
|
//
|
|
// This is used by tabbrowser to flush SessionStore before a process switch.
|
|
async prepareToChangeRemoteness() {
|
|
/* no-op unless replaced */
|
|
}
|
|
|
|
// This method is replaced by frontend code in order to handle restoring
|
|
// remote session history
|
|
//
|
|
// Called immediately after changing remoteness. If this method returns
|
|
// `true`, Gecko will assume frontend handled resuming the load, and will
|
|
// not attempt to resume the load itself.
|
|
afterChangeRemoteness(browser, redirectLoadSwitchId) {
|
|
/* no-op unless replaced */
|
|
return false;
|
|
}
|
|
|
|
// Called by Gecko before the remoteness change happens, allowing for
|
|
// listeners, etc. to be stashed before the process switch.
|
|
beforeChangeRemoteness() {
|
|
// Fire the `WillChangeBrowserRemoteness` event, which may be hooked by
|
|
// frontend code for custom behaviour.
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("WillChangeBrowserRemoteness", true, false);
|
|
this.dispatchEvent(event);
|
|
|
|
// Destroy ourselves to unregister from observer notifications
|
|
// FIXME: Can we get away with something less destructive here?
|
|
this.destroy();
|
|
}
|
|
|
|
finishChangeRemoteness(redirectLoadSwitchId) {
|
|
// Re-construct ourselves after the destroy in `beforeChangeRemoteness`.
|
|
this.construct();
|
|
|
|
// Fire the `DidChangeBrowserRemoteness` event, which may be hooked by
|
|
// frontend code for custom behaviour.
|
|
let event = document.createEvent("Events");
|
|
event.initEvent("DidChangeBrowserRemoteness", true, false);
|
|
this.dispatchEvent(event);
|
|
|
|
// Call into frontend code which may want to handle the load (e.g. to
|
|
// while restoring session state).
|
|
return this.afterChangeRemoteness(redirectLoadSwitchId);
|
|
}
|
|
}
|
|
|
|
MozXULElement.implementCustomInterface(MozBrowser, [Ci.nsIBrowser]);
|
|
customElements.define("browser", MozBrowser);
|
|
}
|