зеркало из https://github.com/mozilla/gecko-dev.git
89 строки
2.7 KiB
JavaScript
89 строки
2.7 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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/* eslint-env mozilla/frame-script */
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ChromeUtils.defineModuleGetter(
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this,
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"BrowserUtils",
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"resource://gre/modules/BrowserUtils.jsm"
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);
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const { WebProgressChild } = ChromeUtils.import(
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"resource://gre/modules/WebProgressChild.jsm"
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);
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this.WebProgress = new WebProgressChild(this);
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try {
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docShell
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIBrowserChild)
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.beginSendingWebProgressEventsToParent();
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} catch (e) {
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// In responsive design mode, we do not have a BrowserChild for the in-parent
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// document.
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}
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// This message is used to measure content process startup performance in Talos
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// tests.
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sendAsyncMessage("Content:BrowserChildReady", {
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time: Services.telemetry.msSystemNow(),
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});
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addEventListener(
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"DOMTitleChanged",
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function(aEvent) {
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if (!aEvent.isTrusted || aEvent.target.defaultView != content) {
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return;
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}
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sendAsyncMessage("DOMTitleChanged", { title: content.document.title });
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},
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false
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);
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addEventListener(
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"ImageContentLoaded",
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function(aEvent) {
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if (content.document instanceof Ci.nsIImageDocument) {
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let req = content.document.imageRequest;
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if (!req.image) {
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return;
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}
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sendAsyncMessage("ImageDocumentLoaded", {
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width: req.image.width,
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height: req.image.height,
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});
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}
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},
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false
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);
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// This is here for now until we find a better way of forcing an about:blank load
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// with a particular principal that doesn't involve the message manager. We can't
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// do this with JS Window Actors for now because JS Window Actors are tied to the
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// document principals themselves, so forcing the load with a new principal is
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// self-destructive in that case.
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addMessageListener("BrowserElement:CreateAboutBlank", message => {
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if (!content.document || content.document.documentURI != "about:blank") {
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throw new Error("Can't create a content viewer unless on about:blank");
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}
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let { principal, storagePrincipal } = message.data;
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principal = BrowserUtils.principalWithMatchingOA(
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principal,
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content.document.nodePrincipal
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);
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storagePrincipal = BrowserUtils.principalWithMatchingOA(
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storagePrincipal,
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content.document.effectiveStoragePrincipal
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);
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docShell.createAboutBlankContentViewer(principal, storagePrincipal);
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});
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// We may not get any responses to Browser:Init if the browser element
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// is torn down too quickly.
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var outerWindowID = docShell.outerWindowID;
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var browsingContextId = docShell.browsingContext.id;
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sendAsyncMessage("Browser:Init", { outerWindowID, browsingContextId });
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