forked from mirrors/gecko-dev
1791 lines
58 KiB
JavaScript
1791 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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function debug(msg) {
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// dump("BrowserElementChildPreload - " + msg + "\n");
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}
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debug("loaded");
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var BrowserElementIsReady = false;
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var { classes: Cc, interfaces: Ci, results: Cr, utils: Cu } = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/BrowserElementPromptService.jsm");
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Cu.import("resource://gre/modules/Task.jsm");
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Cu.import("resource://gre/modules/ExtensionContent.jsm");
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XPCOMUtils.defineLazyServiceGetter(this, "acs",
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"@mozilla.org/audiochannel/service;1",
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"nsIAudioChannelService");
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XPCOMUtils.defineLazyModuleGetter(this, "ManifestFinder",
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"resource://gre/modules/ManifestFinder.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ManifestObtainer",
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"resource://gre/modules/ManifestObtainer.jsm");
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var kLongestReturnedString = 128;
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const Timer = Components.Constructor("@mozilla.org/timer;1",
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"nsITimer",
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"initWithCallback");
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function sendAsyncMsg(msg, data) {
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// Ensure that we don't send any messages before BrowserElementChild.js
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// finishes loading.
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if (!BrowserElementIsReady)
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return;
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if (!data) {
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data = { };
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}
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data.msg_name = msg;
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sendAsyncMessage('browser-element-api:call', data);
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}
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function sendSyncMsg(msg, data) {
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// Ensure that we don't send any messages before BrowserElementChild.js
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// finishes loading.
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if (!BrowserElementIsReady)
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return;
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if (!data) {
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data = { };
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}
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data.msg_name = msg;
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return sendSyncMessage('browser-element-api:call', data);
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}
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var CERTIFICATE_ERROR_PAGE_PREF = 'security.alternate_certificate_error_page';
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const OBSERVED_EVENTS = [
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'xpcom-shutdown',
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'audio-playback',
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'activity-done',
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'invalid-widget',
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'will-launch-app'
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];
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/**
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* The BrowserElementChild implements one half of <iframe mozbrowser>.
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* (The other half is, unsurprisingly, BrowserElementParent.)
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*
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* This script is injected into an <iframe mozbrowser> via
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* nsIMessageManager::LoadFrameScript().
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*
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* Our job here is to listen for events within this frame and bubble them up to
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* the parent process.
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*/
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var global = this;
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function BrowserElementProxyForwarder() {
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}
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BrowserElementProxyForwarder.prototype = {
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init: function() {
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Services.obs.addObserver(this, "browser-element-api:proxy-call", false);
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addMessageListener("browser-element-api:proxy", this);
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},
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uninit: function() {
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Services.obs.removeObserver(this, "browser-element-api:proxy-call", false);
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removeMessageListener("browser-element-api:proxy", this);
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},
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// Observer callback receives messages from BrowserElementProxy.js
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observe: function(subject, topic, stringifedData) {
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if (subject !== content) {
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return;
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}
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// Forward it to BrowserElementParent.js
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sendAsyncMessage(topic, JSON.parse(stringifedData));
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},
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// Message manager callback receives messages from BrowserElementParent.js
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receiveMessage: function(mmMsg) {
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// Forward it to BrowserElementProxy.js
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Services.obs.notifyObservers(
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content, mmMsg.name, JSON.stringify(mmMsg.json));
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}
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};
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function BrowserElementChild() {
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// Maps outer window id --> weak ref to window. Used by modal dialog code.
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this._windowIDDict = {};
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// _forcedVisible corresponds to the visibility state our owner has set on us
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// (via iframe.setVisible). ownerVisible corresponds to whether the docShell
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// whose window owns this element is visible.
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//
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// Our docShell is visible iff _forcedVisible and _ownerVisible are both
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// true.
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this._forcedVisible = true;
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this._ownerVisible = true;
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this._nextPaintHandler = null;
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this._isContentWindowCreated = false;
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this._pendingSetInputMethodActive = [];
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this.forwarder = new BrowserElementProxyForwarder();
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this._init();
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};
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BrowserElementChild.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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_init: function() {
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debug("Starting up.");
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BrowserElementPromptService.mapWindowToBrowserElementChild(content, this);
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docShell.QueryInterface(Ci.nsIWebProgress)
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.addProgressListener(this._progressListener,
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Ci.nsIWebProgress.NOTIFY_LOCATION |
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Ci.nsIWebProgress.NOTIFY_SECURITY |
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Ci.nsIWebProgress.NOTIFY_STATE_WINDOW);
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let webNavigation = docShell.QueryInterface(Ci.nsIWebNavigation);
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if (!webNavigation.sessionHistory) {
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webNavigation.sessionHistory = Cc["@mozilla.org/browser/shistory;1"]
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.createInstance(Ci.nsISHistory);
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}
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// This is necessary to get security web progress notifications.
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var securityUI = Cc['@mozilla.org/secure_browser_ui;1']
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.createInstance(Ci.nsISecureBrowserUI);
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securityUI.init(content);
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// A cache of the menuitem dom objects keyed by the id we generate
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// and pass to the embedder
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this._ctxHandlers = {};
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// Counter of contextmenu events fired
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this._ctxCounter = 0;
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this._shuttingDown = false;
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addEventListener('DOMTitleChanged',
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this._titleChangedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('DOMLinkAdded',
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this._linkAddedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('MozScrolledAreaChanged',
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this._mozScrollAreaChanged.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener("MozDOMFullscreen:Request",
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this._mozRequestedDOMFullscreen.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener("MozDOMFullscreen:NewOrigin",
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this._mozFullscreenOriginChange.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener("MozDOMFullscreen:Exit",
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this._mozExitDomFullscreen.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('DOMMetaAdded',
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this._metaChangedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('DOMMetaChanged',
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this._metaChangedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('DOMMetaRemoved',
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this._metaChangedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('scrollviewchange',
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this._ScrollViewChangeHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addEventListener('click',
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this._ClickHandler.bind(this),
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/* useCapture = */ false,
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/* wantsUntrusted = */ false);
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// This listens to unload events from our message manager, but /not/ from
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// the |content| window. That's because the window's unload event doesn't
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// bubble, and we're not using a capturing listener. If we'd used
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// useCapture == true, we /would/ hear unload events from the window, which
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// is not what we want!
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addEventListener('unload',
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this._unloadHandler.bind(this),
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/* useCapture = */ false,
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/* wantsUntrusted = */ false);
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// Registers a MozAfterPaint handler for the very first paint.
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this._addMozAfterPaintHandler(function () {
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sendAsyncMsg('firstpaint');
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});
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let self = this;
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let mmCalls = {
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"purge-history": this._recvPurgeHistory,
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"get-screenshot": this._recvGetScreenshot,
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"get-contentdimensions": this._recvGetContentDimensions,
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"set-visible": this._recvSetVisible,
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"get-visible": this._recvVisible,
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"send-mouse-event": this._recvSendMouseEvent,
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"send-touch-event": this._recvSendTouchEvent,
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"get-can-go-back": this._recvCanGoBack,
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"get-can-go-forward": this._recvCanGoForward,
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"mute": this._recvMute.bind(this),
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"unmute": this._recvUnmute.bind(this),
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"get-muted": this._recvGetMuted.bind(this),
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"set-volume": this._recvSetVolume.bind(this),
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"get-volume": this._recvGetVolume.bind(this),
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"go-back": this._recvGoBack,
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"go-forward": this._recvGoForward,
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"reload": this._recvReload,
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"stop": this._recvStop,
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"zoom": this._recvZoom,
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"unblock-modal-prompt": this._recvStopWaiting,
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"fire-ctx-callback": this._recvFireCtxCallback,
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"owner-visibility-change": this._recvOwnerVisibilityChange,
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"entered-fullscreen": this._recvEnteredFullscreen,
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"exit-fullscreen": this._recvExitFullscreen.bind(this),
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"activate-next-paint-listener": this._activateNextPaintListener.bind(this),
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"set-input-method-active": this._recvSetInputMethodActive.bind(this),
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"deactivate-next-paint-listener": this._deactivateNextPaintListener.bind(this),
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"find-all": this._recvFindAll.bind(this),
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"find-next": this._recvFindNext.bind(this),
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"clear-match": this._recvClearMatch.bind(this),
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"execute-script": this._recvExecuteScript,
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"get-audio-channel-volume": this._recvGetAudioChannelVolume,
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"set-audio-channel-volume": this._recvSetAudioChannelVolume,
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"get-audio-channel-muted": this._recvGetAudioChannelMuted,
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"set-audio-channel-muted": this._recvSetAudioChannelMuted,
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"get-is-audio-channel-active": this._recvIsAudioChannelActive,
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"get-web-manifest": this._recvGetWebManifest,
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}
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addMessageListener("browser-element-api:call", function(aMessage) {
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if (aMessage.data.msg_name in mmCalls) {
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return mmCalls[aMessage.data.msg_name].apply(self, arguments);
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}
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});
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let els = Cc["@mozilla.org/eventlistenerservice;1"]
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.getService(Ci.nsIEventListenerService);
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// We are using the system group for those events so if something in the
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// content called .stopPropagation() this will still be called.
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els.addSystemEventListener(global, 'DOMWindowClose',
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this._windowCloseHandler.bind(this),
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/* useCapture = */ false);
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els.addSystemEventListener(global, 'DOMWindowCreated',
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this._windowCreatedHandler.bind(this),
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/* useCapture = */ true);
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els.addSystemEventListener(global, 'DOMWindowResize',
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this._windowResizeHandler.bind(this),
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/* useCapture = */ false);
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els.addSystemEventListener(global, 'contextmenu',
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this._contextmenuHandler.bind(this),
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/* useCapture = */ false);
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els.addSystemEventListener(global, 'scroll',
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this._scrollEventHandler.bind(this),
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/* useCapture = */ false);
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OBSERVED_EVENTS.forEach((aTopic) => {
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Services.obs.addObserver(this, aTopic, false);
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});
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this.forwarder.init();
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},
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_paintFrozenTimer: null,
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observe: function(subject, topic, data) {
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// Ignore notifications not about our document. (Note that |content| /can/
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// be null; see bug 874900.)
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if (topic !== 'activity-done' &&
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topic !== 'audio-playback' &&
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topic !== 'will-launch-app' &&
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(!content || subject !== content.document)) {
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return;
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}
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if (topic == 'activity-done' && docShell !== subject)
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return;
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switch (topic) {
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case 'activity-done':
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sendAsyncMsg('activitydone', { success: (data == 'activity-success') });
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break;
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case 'audio-playback':
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if (subject === content) {
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sendAsyncMsg('audioplaybackchange', { _payload_: data });
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}
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break;
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case 'xpcom-shutdown':
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this._shuttingDown = true;
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break;
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case 'invalid-widget':
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sendAsyncMsg('error', { type: 'invalid-widget' });
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break;
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case 'will-launch-app':
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// If the launcher is not visible, let's ignore the message.
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if (!docShell.isActive) {
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return;
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}
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// If this is not a content process, let's not freeze painting.
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if (Services.appinfo.processType != Services.appinfo.PROCESS_TYPE_CONTENT) {
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return;
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}
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docShell.contentViewer.pausePainting();
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this._paintFrozenTimer && this._paintFrozenTimer.cancel();
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this._paintFrozenTimer = new Timer(this, 3000, Ci.nsITimer.TYPE_ONE_SHOT);
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break;
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}
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},
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notify: function(timer) {
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docShell.contentViewer.resumePainting();
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this._paintFrozenTimer.cancel();
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this._paintFrozenTimer = null;
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},
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/**
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* Called when our TabChildGlobal starts to die. This is not called when the
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* page inside |content| unloads.
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*/
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_unloadHandler: function() {
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this._shuttingDown = true;
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OBSERVED_EVENTS.forEach((aTopic) => {
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Services.obs.removeObserver(this, aTopic);
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});
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this.forwarder.uninit();
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this.forwarder = null;
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},
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get _windowUtils() {
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return content.document.defaultView
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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},
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_tryGetInnerWindowID: function(win) {
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let utils = win.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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try {
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return utils.currentInnerWindowID;
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}
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catch(e) {
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return null;
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}
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},
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/**
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* Show a modal prompt. Called by BrowserElementPromptService.
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*/
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showModalPrompt: function(win, args) {
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let utils = win.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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args.windowID = { outer: utils.outerWindowID,
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inner: this._tryGetInnerWindowID(win) };
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sendAsyncMsg('showmodalprompt', args);
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let returnValue = this._waitForResult(win);
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Services.obs.notifyObservers(null, 'BEC:ShownModalPrompt', null);
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if (args.promptType == 'prompt' ||
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args.promptType == 'confirm' ||
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args.promptType == 'custom-prompt') {
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return returnValue;
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}
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},
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/**
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* Spin in a nested event loop until we receive a unblock-modal-prompt message for
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* this window.
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*/
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_waitForResult: function(win) {
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debug("_waitForResult(" + win + ")");
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let utils = win.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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let outerWindowID = utils.outerWindowID;
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let innerWindowID = this._tryGetInnerWindowID(win);
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if (innerWindowID === null) {
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// I have no idea what waiting for a result means when there's no inner
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// window, so let's just bail.
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debug("_waitForResult: No inner window. Bailing.");
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return;
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}
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this._windowIDDict[outerWindowID] = Cu.getWeakReference(win);
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debug("Entering modal state (outerWindowID=" + outerWindowID + ", " +
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"innerWindowID=" + innerWindowID + ")");
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utils.enterModalState();
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// We'll decrement win.modalDepth when we receive a unblock-modal-prompt message
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// for the window.
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if (!win.modalDepth) {
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win.modalDepth = 0;
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}
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win.modalDepth++;
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let origModalDepth = win.modalDepth;
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let thread = Services.tm.currentThread;
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debug("Nested event loop - begin");
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while (win.modalDepth == origModalDepth && !this._shuttingDown) {
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// Bail out of the loop if the inner window changed; that means the
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// window navigated. Bail out when we're shutting down because otherwise
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// we'll leak our window.
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if (this._tryGetInnerWindowID(win) !== innerWindowID) {
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debug("_waitForResult: Inner window ID changed " +
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"while in nested event loop.");
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break;
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}
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thread.processNextEvent(/* mayWait = */ true);
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}
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debug("Nested event loop - finish");
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if (win.modalDepth == 0) {
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delete this._windowIDDict[outerWindowID];
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}
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// If we exited the loop because the inner window changed, then bail on the
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// modal prompt.
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if (innerWindowID !== this._tryGetInnerWindowID(win)) {
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throw Components.Exception("Modal state aborted by navigation",
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Cr.NS_ERROR_NOT_AVAILABLE);
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}
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let returnValue = win.modalReturnValue;
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delete win.modalReturnValue;
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if (!this._shuttingDown) {
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utils.leaveModalState();
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}
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debug("Leaving modal state (outerID=" + outerWindowID + ", " +
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"innerID=" + innerWindowID + ")");
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return returnValue;
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},
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_recvStopWaiting: function(msg) {
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let outerID = msg.json.windowID.outer;
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let innerID = msg.json.windowID.inner;
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let returnValue = msg.json.returnValue;
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debug("recvStopWaiting(outer=" + outerID + ", inner=" + innerID +
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", returnValue=" + returnValue + ")");
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if (!this._windowIDDict[outerID]) {
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debug("recvStopWaiting: No record of outer window ID " + outerID);
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return;
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}
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let win = this._windowIDDict[outerID].get();
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if (!win) {
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debug("recvStopWaiting, but window is gone\n");
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return;
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}
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if (innerID !== this._tryGetInnerWindowID(win)) {
|
|
debug("recvStopWaiting, but inner ID has changed\n");
|
|
return;
|
|
}
|
|
|
|
debug("recvStopWaiting " + win);
|
|
win.modalReturnValue = returnValue;
|
|
win.modalDepth--;
|
|
},
|
|
|
|
_recvEnteredFullscreen: function() {
|
|
if (!this._windowUtils.handleFullscreenRequests() &&
|
|
!content.document.fullscreenElement) {
|
|
// If we don't actually have any pending fullscreen request
|
|
// to handle, neither we have been in fullscreen, tell the
|
|
// parent to just exit.
|
|
sendAsyncMsg("exit-dom-fullscreen");
|
|
}
|
|
},
|
|
|
|
_recvExitFullscreen: function() {
|
|
this._windowUtils.exitFullscreen();
|
|
},
|
|
|
|
_titleChangedHandler: function(e) {
|
|
debug("Got titlechanged: (" + e.target.title + ")");
|
|
var win = e.target.defaultView;
|
|
|
|
// Ignore titlechanges which don't come from the top-level
|
|
// <iframe mozbrowser> window.
|
|
if (win == content) {
|
|
sendAsyncMsg('titlechange', { _payload_: e.target.title });
|
|
}
|
|
else {
|
|
debug("Not top level!");
|
|
}
|
|
},
|
|
|
|
_maybeCopyAttribute: function(src, target, attribute) {
|
|
if (src.getAttribute(attribute)) {
|
|
target[attribute] = src.getAttribute(attribute);
|
|
}
|
|
},
|
|
|
|
_iconChangedHandler: function(e) {
|
|
debug('Got iconchanged: (' + e.target.href + ')');
|
|
let icon = { href: e.target.href };
|
|
this._maybeCopyAttribute(e.target, icon, 'sizes');
|
|
this._maybeCopyAttribute(e.target, icon, 'rel');
|
|
sendAsyncMsg('iconchange', icon);
|
|
},
|
|
|
|
_openSearchHandler: function(e) {
|
|
debug('Got opensearch: (' + e.target.href + ')');
|
|
|
|
if (e.target.type !== "application/opensearchdescription+xml") {
|
|
return;
|
|
}
|
|
|
|
sendAsyncMsg('opensearch', { title: e.target.title,
|
|
href: e.target.href });
|
|
|
|
},
|
|
|
|
_manifestChangedHandler: function(e) {
|
|
debug('Got manifestchanged: (' + e.target.href + ')');
|
|
let manifest = { href: e.target.href };
|
|
sendAsyncMsg('manifestchange', manifest);
|
|
|
|
},
|
|
|
|
// Processes the "rel" field in <link> tags and forward to specific handlers.
|
|
_linkAddedHandler: function(e) {
|
|
let win = e.target.ownerDocument.defaultView;
|
|
// Ignore links which don't come from the top-level
|
|
// <iframe mozbrowser> window.
|
|
if (win != content) {
|
|
debug('Not top level!');
|
|
return;
|
|
}
|
|
|
|
let handlers = {
|
|
'icon': this._iconChangedHandler.bind(this),
|
|
'apple-touch-icon': this._iconChangedHandler.bind(this),
|
|
'apple-touch-icon-precomposed': this._iconChangedHandler.bind(this),
|
|
'search': this._openSearchHandler,
|
|
'manifest': this._manifestChangedHandler
|
|
};
|
|
|
|
debug('Got linkAdded: (' + e.target.href + ') ' + e.target.rel);
|
|
e.target.rel.split(' ').forEach(function(x) {
|
|
let token = x.toLowerCase();
|
|
if (handlers[token]) {
|
|
handlers[token](e);
|
|
}
|
|
}, this);
|
|
},
|
|
|
|
_metaChangedHandler: function(e) {
|
|
let win = e.target.ownerDocument.defaultView;
|
|
// Ignore metas which don't come from the top-level
|
|
// <iframe mozbrowser> window.
|
|
if (win != content) {
|
|
debug('Not top level!');
|
|
return;
|
|
}
|
|
|
|
var name = e.target.name;
|
|
var property = e.target.getAttributeNS(null, "property");
|
|
|
|
if (!name && !property) {
|
|
return;
|
|
}
|
|
|
|
debug('Got metaChanged: (' + (name || property) + ') ' +
|
|
e.target.content);
|
|
|
|
let handlers = {
|
|
'viewmode': this._genericMetaHandler,
|
|
'theme-color': this._genericMetaHandler,
|
|
'theme-group': this._genericMetaHandler,
|
|
'application-name': this._applicationNameChangedHandler
|
|
};
|
|
let handler = handlers[name];
|
|
|
|
if ((property || name).match(/^og:/)) {
|
|
name = property || name;
|
|
handler = this._genericMetaHandler;
|
|
}
|
|
|
|
if (handler) {
|
|
handler(name, e.type, e.target);
|
|
}
|
|
},
|
|
|
|
_applicationNameChangedHandler: function(name, eventType, target) {
|
|
if (eventType !== 'DOMMetaAdded') {
|
|
// Bug 1037448 - Decide what to do when <meta name="application-name">
|
|
// changes
|
|
return;
|
|
}
|
|
|
|
let meta = { name: name,
|
|
content: target.content };
|
|
|
|
let lang;
|
|
let elm;
|
|
|
|
for (elm = target;
|
|
!lang && elm && elm.nodeType == target.ELEMENT_NODE;
|
|
elm = elm.parentNode) {
|
|
if (elm.hasAttribute('lang')) {
|
|
lang = elm.getAttribute('lang');
|
|
continue;
|
|
}
|
|
|
|
if (elm.hasAttributeNS('http://www.w3.org/XML/1998/namespace', 'lang')) {
|
|
lang = elm.getAttributeNS('http://www.w3.org/XML/1998/namespace', 'lang');
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// No lang has been detected.
|
|
if (!lang && elm.nodeType == target.DOCUMENT_NODE) {
|
|
lang = elm.contentLanguage;
|
|
}
|
|
|
|
if (lang) {
|
|
meta.lang = lang;
|
|
}
|
|
|
|
sendAsyncMsg('metachange', meta);
|
|
},
|
|
|
|
_ScrollViewChangeHandler: function(e) {
|
|
e.stopPropagation();
|
|
let detail = {
|
|
state: e.state,
|
|
};
|
|
sendAsyncMsg('scrollviewchange', detail);
|
|
},
|
|
|
|
_ClickHandler: function(e) {
|
|
|
|
let isHTMLLink = node =>
|
|
((node instanceof Ci.nsIDOMHTMLAnchorElement && node.href) ||
|
|
(node instanceof Ci.nsIDOMHTMLAreaElement && node.href) ||
|
|
node instanceof Ci.nsIDOMHTMLLinkElement);
|
|
|
|
// Open in a new tab if middle click or ctrl/cmd-click,
|
|
// and e.target is a link or inside a link.
|
|
if ((Services.appinfo.OS == 'Darwin' && e.metaKey) ||
|
|
(Services.appinfo.OS != 'Darwin' && e.ctrlKey) ||
|
|
e.button == 1) {
|
|
|
|
let node = e.target;
|
|
while (node && !isHTMLLink(node)) {
|
|
node = node.parentNode;
|
|
}
|
|
|
|
if (node) {
|
|
sendAsyncMsg('opentab', {url: node.href});
|
|
}
|
|
}
|
|
},
|
|
|
|
_genericMetaHandler: function(name, eventType, target) {
|
|
let meta = {
|
|
name: name,
|
|
content: target.content,
|
|
type: eventType.replace('DOMMeta', '').toLowerCase()
|
|
};
|
|
sendAsyncMsg('metachange', meta);
|
|
},
|
|
|
|
_addMozAfterPaintHandler: function(callback) {
|
|
function onMozAfterPaint() {
|
|
let uri = docShell.QueryInterface(Ci.nsIWebNavigation).currentURI;
|
|
if (uri.spec != "about:blank") {
|
|
debug("Got afterpaint event: " + uri.spec);
|
|
removeEventListener('MozAfterPaint', onMozAfterPaint,
|
|
/* useCapture = */ true);
|
|
callback();
|
|
}
|
|
}
|
|
|
|
addEventListener('MozAfterPaint', onMozAfterPaint, /* useCapture = */ true);
|
|
return onMozAfterPaint;
|
|
},
|
|
|
|
_removeMozAfterPaintHandler: function(listener) {
|
|
removeEventListener('MozAfterPaint', listener,
|
|
/* useCapture = */ true);
|
|
},
|
|
|
|
_activateNextPaintListener: function(e) {
|
|
if (!this._nextPaintHandler) {
|
|
this._nextPaintHandler = this._addMozAfterPaintHandler(function () {
|
|
this._nextPaintHandler = null;
|
|
sendAsyncMsg('nextpaint');
|
|
}.bind(this));
|
|
}
|
|
},
|
|
|
|
_deactivateNextPaintListener: function(e) {
|
|
if (this._nextPaintHandler) {
|
|
this._removeMozAfterPaintHandler(this._nextPaintHandler);
|
|
this._nextPaintHandler = null;
|
|
}
|
|
},
|
|
|
|
_windowCloseHandler: function(e) {
|
|
let win = e.target;
|
|
if (win != content || e.defaultPrevented) {
|
|
return;
|
|
}
|
|
|
|
debug("Closing window " + win);
|
|
sendAsyncMsg('close');
|
|
|
|
// Inform the window implementation that we handled this close ourselves.
|
|
e.preventDefault();
|
|
},
|
|
|
|
_windowCreatedHandler: function(e) {
|
|
let targetDocShell = e.target.defaultView
|
|
.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebNavigation);
|
|
if (targetDocShell != docShell) {
|
|
return;
|
|
}
|
|
|
|
let uri = docShell.QueryInterface(Ci.nsIWebNavigation).currentURI;
|
|
debug("Window created: " + uri.spec);
|
|
if (uri.spec != "about:blank") {
|
|
this._addMozAfterPaintHandler(function () {
|
|
sendAsyncMsg('documentfirstpaint');
|
|
});
|
|
this._isContentWindowCreated = true;
|
|
// Handle pending SetInputMethodActive request.
|
|
while (this._pendingSetInputMethodActive.length > 0) {
|
|
this._recvSetInputMethodActive(this._pendingSetInputMethodActive.shift());
|
|
}
|
|
}
|
|
},
|
|
|
|
_windowResizeHandler: function(e) {
|
|
let win = e.target;
|
|
if (win != content || e.defaultPrevented) {
|
|
return;
|
|
}
|
|
|
|
debug("resizing window " + win);
|
|
sendAsyncMsg('resize', { width: e.detail.width, height: e.detail.height });
|
|
|
|
// Inform the window implementation that we handled this resize ourselves.
|
|
e.preventDefault();
|
|
},
|
|
|
|
_contextmenuHandler: function(e) {
|
|
debug("Got contextmenu");
|
|
|
|
if (e.defaultPrevented) {
|
|
return;
|
|
}
|
|
|
|
this._ctxCounter++;
|
|
this._ctxHandlers = {};
|
|
|
|
var elem = e.target;
|
|
var menuData = {systemTargets: [], contextmenu: null};
|
|
var ctxMenuId = null;
|
|
var clipboardPlainTextOnly = Services.prefs.getBoolPref('clipboard.plainTextOnly');
|
|
var copyableElements = {
|
|
image: false,
|
|
link: false,
|
|
hasElements: function() {
|
|
return this.image || this.link;
|
|
}
|
|
};
|
|
|
|
// Set the event target as the copy image command needs it to
|
|
// determine what was context-clicked on.
|
|
docShell.contentViewer.QueryInterface(Ci.nsIContentViewerEdit).setCommandNode(elem);
|
|
|
|
while (elem && elem.parentNode) {
|
|
var ctxData = this._getSystemCtxMenuData(elem);
|
|
if (ctxData) {
|
|
menuData.systemTargets.push({
|
|
nodeName: elem.nodeName,
|
|
data: ctxData
|
|
});
|
|
}
|
|
|
|
if (!ctxMenuId && 'hasAttribute' in elem && elem.hasAttribute('contextmenu')) {
|
|
ctxMenuId = elem.getAttribute('contextmenu');
|
|
}
|
|
|
|
// Enable copy image/link option
|
|
if (elem.nodeName == 'IMG') {
|
|
copyableElements.image = !clipboardPlainTextOnly;
|
|
} else if (elem.nodeName == 'A') {
|
|
copyableElements.link = true;
|
|
}
|
|
|
|
elem = elem.parentNode;
|
|
}
|
|
|
|
if (ctxMenuId || copyableElements.hasElements()) {
|
|
var menu = null;
|
|
if (ctxMenuId) {
|
|
menu = e.target.ownerDocument.getElementById(ctxMenuId);
|
|
}
|
|
menuData.contextmenu = this._buildMenuObj(menu, '', copyableElements);
|
|
}
|
|
|
|
// Pass along the position where the context menu should be located
|
|
menuData.clientX = e.clientX;
|
|
menuData.clientY = e.clientY;
|
|
menuData.screenX = e.screenX;
|
|
menuData.screenY = e.screenY;
|
|
|
|
// The value returned by the contextmenu sync call is true if the embedder
|
|
// called preventDefault() on its contextmenu event.
|
|
//
|
|
// We call preventDefault() on our contextmenu event if the embedder called
|
|
// preventDefault() on /its/ contextmenu event. This way, if the embedder
|
|
// ignored the contextmenu event, TabChild will fire a click.
|
|
if (sendSyncMsg('contextmenu', menuData)[0]) {
|
|
e.preventDefault();
|
|
} else {
|
|
this._ctxHandlers = {};
|
|
}
|
|
},
|
|
|
|
_getSystemCtxMenuData: function(elem) {
|
|
let documentURI =
|
|
docShell.QueryInterface(Ci.nsIWebNavigation).currentURI.spec;
|
|
if ((elem instanceof Ci.nsIDOMHTMLAnchorElement && elem.href) ||
|
|
(elem instanceof Ci.nsIDOMHTMLAreaElement && elem.href)) {
|
|
return {uri: elem.href,
|
|
documentURI: documentURI,
|
|
text: elem.textContent.substring(0, kLongestReturnedString)};
|
|
}
|
|
if (elem instanceof Ci.nsIImageLoadingContent && elem.currentURI) {
|
|
return {uri: elem.currentURI.spec, documentURI: documentURI};
|
|
}
|
|
if (elem instanceof Ci.nsIDOMHTMLImageElement) {
|
|
return {uri: elem.src, documentURI: documentURI};
|
|
}
|
|
if (elem instanceof Ci.nsIDOMHTMLMediaElement) {
|
|
let hasVideo = !(elem.readyState >= elem.HAVE_METADATA &&
|
|
(elem.videoWidth == 0 || elem.videoHeight == 0));
|
|
return {uri: elem.currentSrc || elem.src,
|
|
hasVideo: hasVideo,
|
|
documentURI: documentURI};
|
|
}
|
|
if (elem instanceof Ci.nsIDOMHTMLInputElement &&
|
|
elem.hasAttribute("name")) {
|
|
// For input elements, we look for a parent <form> and if there is
|
|
// one we return the form's method and action uri.
|
|
let parent = elem.parentNode;
|
|
while (parent) {
|
|
if (parent instanceof Ci.nsIDOMHTMLFormElement &&
|
|
parent.hasAttribute("action")) {
|
|
let actionHref = docShell.QueryInterface(Ci.nsIWebNavigation)
|
|
.currentURI
|
|
.resolve(parent.getAttribute("action"));
|
|
let method = parent.hasAttribute("method")
|
|
? parent.getAttribute("method").toLowerCase()
|
|
: "get";
|
|
return {
|
|
documentURI: documentURI,
|
|
action: actionHref,
|
|
method: method,
|
|
name: elem.getAttribute("name"),
|
|
}
|
|
}
|
|
parent = parent.parentNode;
|
|
}
|
|
}
|
|
return false;
|
|
},
|
|
|
|
_scrollEventHandler: function(e) {
|
|
let win = e.target.defaultView;
|
|
if (win != content) {
|
|
return;
|
|
}
|
|
|
|
debug("scroll event " + win);
|
|
sendAsyncMsg("scroll", { top: win.scrollY, left: win.scrollX });
|
|
},
|
|
|
|
_recvPurgeHistory: function(data) {
|
|
debug("Received purgeHistory message: (" + data.json.id + ")");
|
|
|
|
let history = docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory;
|
|
|
|
try {
|
|
if (history && history.count) {
|
|
history.PurgeHistory(history.count);
|
|
}
|
|
} catch(e) {}
|
|
|
|
sendAsyncMsg('got-purge-history', { id: data.json.id, successRv: true });
|
|
},
|
|
|
|
_recvGetScreenshot: function(data) {
|
|
debug("Received getScreenshot message: (" + data.json.id + ")");
|
|
|
|
let self = this;
|
|
let maxWidth = data.json.args.width;
|
|
let maxHeight = data.json.args.height;
|
|
let mimeType = data.json.args.mimeType;
|
|
let domRequestID = data.json.id;
|
|
|
|
let takeScreenshotClosure = function() {
|
|
self._takeScreenshot(maxWidth, maxHeight, mimeType, domRequestID);
|
|
};
|
|
|
|
let maxDelayMS = 2000;
|
|
try {
|
|
maxDelayMS = Services.prefs.getIntPref('dom.browserElement.maxScreenshotDelayMS');
|
|
}
|
|
catch(e) {}
|
|
|
|
// Try to wait for the event loop to go idle before we take the screenshot,
|
|
// but once we've waited maxDelayMS milliseconds, go ahead and take it
|
|
// anyway.
|
|
Cc['@mozilla.org/message-loop;1'].getService(Ci.nsIMessageLoop).postIdleTask(
|
|
takeScreenshotClosure, maxDelayMS);
|
|
},
|
|
|
|
_recvExecuteScript: function(data) {
|
|
debug("Received executeScript message: (" + data.json.id + ")");
|
|
|
|
let domRequestID = data.json.id;
|
|
|
|
let sendError = errorMsg => sendAsyncMsg("execute-script-done", {
|
|
errorMsg,
|
|
id: domRequestID
|
|
});
|
|
|
|
let sendSuccess = successRv => sendAsyncMsg("execute-script-done", {
|
|
successRv,
|
|
id: domRequestID
|
|
});
|
|
|
|
let isJSON = obj => {
|
|
try {
|
|
JSON.stringify(obj);
|
|
} catch(e) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
let expectedOrigin = data.json.args.options.origin;
|
|
let expectedUrl = data.json.args.options.url;
|
|
|
|
if (expectedOrigin) {
|
|
if (expectedOrigin != content.location.origin) {
|
|
sendError("Origin mismatches");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (expectedUrl) {
|
|
let expectedURI
|
|
try {
|
|
expectedURI = Services.io.newURI(expectedUrl, null, null);
|
|
} catch(e) {
|
|
sendError("Malformed URL");
|
|
return;
|
|
}
|
|
let currentURI = docShell.QueryInterface(Ci.nsIWebNavigation).currentURI;
|
|
if (!currentURI.equalsExceptRef(expectedURI)) {
|
|
sendError("URL mismatches");
|
|
return;
|
|
}
|
|
}
|
|
|
|
let sandbox = new Cu.Sandbox([content], {
|
|
sandboxPrototype: content,
|
|
sandboxName: "browser-api-execute-script",
|
|
allowWaivers: false,
|
|
sameZoneAs: content
|
|
});
|
|
|
|
try {
|
|
let sandboxRv = Cu.evalInSandbox(data.json.args.script, sandbox, "1.8");
|
|
if (sandboxRv instanceof sandbox.Promise) {
|
|
sandboxRv.then(rv => {
|
|
if (isJSON(rv)) {
|
|
sendSuccess(rv);
|
|
} else {
|
|
sendError("Value returned (resolve) by promise is not a valid JSON object");
|
|
}
|
|
}, error => {
|
|
if (isJSON(error)) {
|
|
sendError(error);
|
|
} else {
|
|
sendError("Value returned (reject) by promise is not a valid JSON object");
|
|
}
|
|
});
|
|
} else {
|
|
if (isJSON(sandboxRv)) {
|
|
sendSuccess(sandboxRv);
|
|
} else {
|
|
sendError("Script last expression must be a promise or a JSON object");
|
|
}
|
|
}
|
|
} catch(e) {
|
|
sendError(e.toString());
|
|
}
|
|
},
|
|
|
|
_recvGetContentDimensions: function(data) {
|
|
debug("Received getContentDimensions message: (" + data.json.id + ")");
|
|
sendAsyncMsg('got-contentdimensions', {
|
|
id: data.json.id,
|
|
successRv: this._getContentDimensions()
|
|
});
|
|
},
|
|
|
|
_mozScrollAreaChanged: function(e) {
|
|
sendAsyncMsg('scrollareachanged', {
|
|
width: e.width,
|
|
height: e.height
|
|
});
|
|
},
|
|
|
|
_mozRequestedDOMFullscreen: function(e) {
|
|
sendAsyncMsg("requested-dom-fullscreen");
|
|
},
|
|
|
|
_mozFullscreenOriginChange: function(e) {
|
|
sendAsyncMsg("fullscreen-origin-change", {
|
|
originNoSuffix: e.target.nodePrincipal.originNoSuffix
|
|
});
|
|
},
|
|
|
|
_mozExitDomFullscreen: function(e) {
|
|
sendAsyncMsg("exit-dom-fullscreen");
|
|
},
|
|
|
|
_getContentDimensions: function() {
|
|
return {
|
|
width: content.document.body.scrollWidth,
|
|
height: content.document.body.scrollHeight
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Actually take a screenshot and foward the result up to our parent, given
|
|
* the desired maxWidth and maxHeight (in CSS pixels), and given the
|
|
* DOMRequest ID associated with the request from the parent.
|
|
*/
|
|
_takeScreenshot: function(maxWidth, maxHeight, mimeType, domRequestID) {
|
|
// You can think of the screenshotting algorithm as carrying out the
|
|
// following steps:
|
|
//
|
|
// - Calculate maxWidth, maxHeight, and viewport's width and height in the
|
|
// dimension of device pixels by multiply the numbers with
|
|
// window.devicePixelRatio.
|
|
//
|
|
// - Let scaleWidth be the factor by which we'd need to downscale the
|
|
// viewport pixel width so it would fit within maxPixelWidth.
|
|
// (If the viewport's pixel width is less than maxPixelWidth, let
|
|
// scaleWidth be 1.) Compute scaleHeight the same way.
|
|
//
|
|
// - Scale the viewport by max(scaleWidth, scaleHeight). Now either the
|
|
// viewport's width is no larger than maxWidth, the viewport's height is
|
|
// no larger than maxHeight, or both.
|
|
//
|
|
// - Crop the viewport so its width is no larger than maxWidth and its
|
|
// height is no larger than maxHeight.
|
|
//
|
|
// - Set mozOpaque to true and background color to solid white
|
|
// if we are taking a JPEG screenshot, keep transparent if otherwise.
|
|
//
|
|
// - Return a screenshot of the page's viewport scaled and cropped per
|
|
// above.
|
|
debug("Taking a screenshot: maxWidth=" + maxWidth +
|
|
", maxHeight=" + maxHeight +
|
|
", mimeType=" + mimeType +
|
|
", domRequestID=" + domRequestID + ".");
|
|
|
|
if (!content) {
|
|
// If content is not loaded yet, bail out since even sendAsyncMessage
|
|
// fails...
|
|
debug("No content yet!");
|
|
return;
|
|
}
|
|
|
|
let devicePixelRatio = content.devicePixelRatio;
|
|
|
|
let maxPixelWidth = Math.round(maxWidth * devicePixelRatio);
|
|
let maxPixelHeight = Math.round(maxHeight * devicePixelRatio);
|
|
|
|
let contentPixelWidth = content.innerWidth * devicePixelRatio;
|
|
let contentPixelHeight = content.innerHeight * devicePixelRatio;
|
|
|
|
let scaleWidth = Math.min(1, maxPixelWidth / contentPixelWidth);
|
|
let scaleHeight = Math.min(1, maxPixelHeight / contentPixelHeight);
|
|
|
|
let scale = Math.max(scaleWidth, scaleHeight);
|
|
|
|
let canvasWidth =
|
|
Math.min(maxPixelWidth, Math.round(contentPixelWidth * scale));
|
|
let canvasHeight =
|
|
Math.min(maxPixelHeight, Math.round(contentPixelHeight * scale));
|
|
|
|
let transparent = (mimeType !== 'image/jpeg');
|
|
|
|
var canvas = content.document
|
|
.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
|
|
if (!transparent)
|
|
canvas.mozOpaque = true;
|
|
canvas.width = canvasWidth;
|
|
canvas.height = canvasHeight;
|
|
|
|
let ctx = canvas.getContext("2d", { willReadFrequently: true });
|
|
ctx.scale(scale * devicePixelRatio, scale * devicePixelRatio);
|
|
|
|
let flags = ctx.DRAWWINDOW_DRAW_VIEW |
|
|
ctx.DRAWWINDOW_USE_WIDGET_LAYERS |
|
|
ctx.DRAWWINDOW_DO_NOT_FLUSH |
|
|
ctx.DRAWWINDOW_ASYNC_DECODE_IMAGES;
|
|
ctx.drawWindow(content, 0, 0, content.innerWidth, content.innerHeight,
|
|
transparent ? "rgba(255,255,255,0)" : "rgb(255,255,255)",
|
|
flags);
|
|
|
|
// Take a JPEG screenshot by default instead of PNG with alpha channel.
|
|
// This requires us to unpremultiply the alpha channel, which
|
|
// is expensive on ARM processors because they lack a hardware integer
|
|
// division instruction.
|
|
canvas.toBlob(function(blob) {
|
|
sendAsyncMsg('got-screenshot', {
|
|
id: domRequestID,
|
|
successRv: blob
|
|
});
|
|
}, mimeType);
|
|
},
|
|
|
|
_recvFireCtxCallback: function(data) {
|
|
debug("Received fireCtxCallback message: (" + data.json.menuitem + ")");
|
|
|
|
let doCommandIfEnabled = (command) => {
|
|
if (docShell.isCommandEnabled(command)) {
|
|
docShell.doCommand(command);
|
|
}
|
|
};
|
|
|
|
if (data.json.menuitem == 'copy-image') {
|
|
doCommandIfEnabled('cmd_copyImage');
|
|
} else if (data.json.menuitem == 'copy-link') {
|
|
doCommandIfEnabled('cmd_copyLink');
|
|
} else if (data.json.menuitem in this._ctxHandlers) {
|
|
this._ctxHandlers[data.json.menuitem].click();
|
|
this._ctxHandlers = {};
|
|
} else {
|
|
// We silently ignore if the embedder uses an incorrect id in the callback
|
|
debug("Ignored invalid contextmenu invocation");
|
|
}
|
|
},
|
|
|
|
_buildMenuObj: function(menu, idPrefix, copyableElements) {
|
|
var menuObj = {type: 'menu', customized: false, items: []};
|
|
// Customized context menu
|
|
if (menu) {
|
|
this._maybeCopyAttribute(menu, menuObj, 'label');
|
|
|
|
for (var i = 0, child; child = menu.children[i++];) {
|
|
if (child.nodeName === 'MENU') {
|
|
menuObj.items.push(this._buildMenuObj(child, idPrefix + i + '_', false));
|
|
} else if (child.nodeName === 'MENUITEM') {
|
|
var id = this._ctxCounter + '_' + idPrefix + i;
|
|
var menuitem = {id: id, type: 'menuitem'};
|
|
this._maybeCopyAttribute(child, menuitem, 'label');
|
|
this._maybeCopyAttribute(child, menuitem, 'icon');
|
|
this._ctxHandlers[id] = child;
|
|
menuObj.items.push(menuitem);
|
|
}
|
|
}
|
|
|
|
if (menuObj.items.length > 0) {
|
|
menuObj.customized = true;
|
|
}
|
|
}
|
|
// Note: Display "Copy Link" first in order to make sure "Copy Image" is
|
|
// put together with other image options if elem is an image link.
|
|
// "Copy Link" menu item
|
|
if (copyableElements.link) {
|
|
menuObj.items.push({id: 'copy-link'});
|
|
}
|
|
// "Copy Image" menu item
|
|
if (copyableElements.image) {
|
|
menuObj.items.push({id: 'copy-image'});
|
|
}
|
|
|
|
return menuObj;
|
|
},
|
|
|
|
_recvSetVisible: function(data) {
|
|
debug("Received setVisible message: (" + data.json.visible + ")");
|
|
if (this._forcedVisible == data.json.visible) {
|
|
return;
|
|
}
|
|
|
|
this._forcedVisible = data.json.visible;
|
|
this._updateVisibility();
|
|
},
|
|
|
|
_recvVisible: function(data) {
|
|
sendAsyncMsg('got-visible', {
|
|
id: data.json.id,
|
|
successRv: docShell.isActive
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Called when the window which contains this iframe becomes hidden or
|
|
* visible.
|
|
*/
|
|
_recvOwnerVisibilityChange: function(data) {
|
|
debug("Received ownerVisibilityChange: (" + data.json.visible + ")");
|
|
this._ownerVisible = data.json.visible;
|
|
this._updateVisibility();
|
|
},
|
|
|
|
_updateVisibility: function() {
|
|
var visible = this._forcedVisible && this._ownerVisible;
|
|
if (docShell && docShell.isActive !== visible) {
|
|
docShell.isActive = visible;
|
|
sendAsyncMsg('visibilitychange', {visible: visible});
|
|
|
|
// Ensure painting is not frozen if the app goes visible.
|
|
if (visible && this._paintFrozenTimer) {
|
|
this.notify();
|
|
}
|
|
}
|
|
},
|
|
|
|
_recvSendMouseEvent: function(data) {
|
|
let json = data.json;
|
|
let utils = content.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIDOMWindowUtils);
|
|
utils.sendMouseEventToWindow(json.type, json.x, json.y, json.button,
|
|
json.clickCount, json.modifiers);
|
|
},
|
|
|
|
_recvSendTouchEvent: function(data) {
|
|
let json = data.json;
|
|
let utils = content.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIDOMWindowUtils);
|
|
utils.sendTouchEventToWindow(json.type, json.identifiers, json.touchesX,
|
|
json.touchesY, json.radiisX, json.radiisY,
|
|
json.rotationAngles, json.forces, json.count,
|
|
json.modifiers);
|
|
},
|
|
|
|
_recvCanGoBack: function(data) {
|
|
var webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
|
|
sendAsyncMsg('got-can-go-back', {
|
|
id: data.json.id,
|
|
successRv: webNav.canGoBack
|
|
});
|
|
},
|
|
|
|
_recvCanGoForward: function(data) {
|
|
var webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
|
|
sendAsyncMsg('got-can-go-forward', {
|
|
id: data.json.id,
|
|
successRv: webNav.canGoForward
|
|
});
|
|
},
|
|
|
|
_recvMute: function(data) {
|
|
this._windowUtils.audioMuted = true;
|
|
},
|
|
|
|
_recvUnmute: function(data) {
|
|
this._windowUtils.audioMuted = false;
|
|
},
|
|
|
|
_recvGetMuted: function(data) {
|
|
sendAsyncMsg('got-muted', {
|
|
id: data.json.id,
|
|
successRv: this._windowUtils.audioMuted
|
|
});
|
|
},
|
|
|
|
_recvSetVolume: function(data) {
|
|
this._windowUtils.audioVolume = data.json.volume;
|
|
},
|
|
|
|
_recvGetVolume: function(data) {
|
|
sendAsyncMsg('got-volume', {
|
|
id: data.json.id,
|
|
successRv: this._windowUtils.audioVolume
|
|
});
|
|
},
|
|
|
|
_recvGoBack: function(data) {
|
|
try {
|
|
docShell.QueryInterface(Ci.nsIWebNavigation).goBack();
|
|
} catch(e) {
|
|
// Silently swallow errors; these happen when we can't go back.
|
|
}
|
|
},
|
|
|
|
_recvGoForward: function(data) {
|
|
try {
|
|
docShell.QueryInterface(Ci.nsIWebNavigation).goForward();
|
|
} catch(e) {
|
|
// Silently swallow errors; these happen when we can't go forward.
|
|
}
|
|
},
|
|
|
|
_recvReload: function(data) {
|
|
let webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
|
|
let reloadFlags = data.json.hardReload ?
|
|
webNav.LOAD_FLAGS_BYPASS_PROXY | webNav.LOAD_FLAGS_BYPASS_CACHE :
|
|
webNav.LOAD_FLAGS_NONE;
|
|
try {
|
|
webNav.reload(reloadFlags);
|
|
} catch(e) {
|
|
// Silently swallow errors; these can happen if a used cancels reload
|
|
}
|
|
},
|
|
|
|
_recvStop: function(data) {
|
|
let webNav = docShell.QueryInterface(Ci.nsIWebNavigation);
|
|
webNav.stop(webNav.STOP_NETWORK);
|
|
},
|
|
|
|
_recvZoom: function(data) {
|
|
docShell.contentViewer.fullZoom = data.json.zoom;
|
|
},
|
|
|
|
_recvGetAudioChannelVolume: function(data) {
|
|
debug("Received getAudioChannelVolume message: (" + data.json.id + ")");
|
|
|
|
let volume = acs.getAudioChannelVolume(content,
|
|
data.json.args.audioChannel);
|
|
sendAsyncMsg('got-audio-channel-volume', {
|
|
id: data.json.id, successRv: volume
|
|
});
|
|
},
|
|
|
|
_recvSetAudioChannelVolume: function(data) {
|
|
debug("Received setAudioChannelVolume message: (" + data.json.id + ")");
|
|
|
|
acs.setAudioChannelVolume(content,
|
|
data.json.args.audioChannel,
|
|
data.json.args.volume);
|
|
sendAsyncMsg('got-set-audio-channel-volume', {
|
|
id: data.json.id, successRv: true
|
|
});
|
|
},
|
|
|
|
_recvGetAudioChannelMuted: function(data) {
|
|
debug("Received getAudioChannelMuted message: (" + data.json.id + ")");
|
|
|
|
let muted = acs.getAudioChannelMuted(content, data.json.args.audioChannel);
|
|
sendAsyncMsg('got-audio-channel-muted', {
|
|
id: data.json.id, successRv: muted
|
|
});
|
|
},
|
|
|
|
_recvSetAudioChannelMuted: function(data) {
|
|
debug("Received setAudioChannelMuted message: (" + data.json.id + ")");
|
|
|
|
acs.setAudioChannelMuted(content, data.json.args.audioChannel,
|
|
data.json.args.muted);
|
|
sendAsyncMsg('got-set-audio-channel-muted', {
|
|
id: data.json.id, successRv: true
|
|
});
|
|
},
|
|
|
|
_recvIsAudioChannelActive: function(data) {
|
|
debug("Received isAudioChannelActive message: (" + data.json.id + ")");
|
|
|
|
let active = acs.isAudioChannelActive(content, data.json.args.audioChannel);
|
|
sendAsyncMsg('got-is-audio-channel-active', {
|
|
id: data.json.id, successRv: active
|
|
});
|
|
},
|
|
_recvGetWebManifest: Task.async(function* (data) {
|
|
debug(`Received GetWebManifest message: (${data.json.id})`);
|
|
let manifest = null;
|
|
let hasManifest = ManifestFinder.contentHasManifestLink(content);
|
|
if (hasManifest) {
|
|
try {
|
|
manifest = yield ManifestObtainer.contentObtainManifest(content);
|
|
} catch (e) {
|
|
sendAsyncMsg('got-web-manifest', {
|
|
id: data.json.id,
|
|
errorMsg: `Error fetching web manifest: ${e}.`,
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
sendAsyncMsg('got-web-manifest', {
|
|
id: data.json.id,
|
|
successRv: manifest
|
|
});
|
|
}),
|
|
_initFinder: function() {
|
|
if (!this._finder) {
|
|
try {
|
|
this._findLimit = Services.prefs.getIntPref("accessibility.typeaheadfind.matchesCountLimit");
|
|
} catch (e) {
|
|
// Pref not available, assume 0, no match counting.
|
|
this._findLimit = 0;
|
|
}
|
|
|
|
let {Finder} = Components.utils.import("resource://gre/modules/Finder.jsm", {});
|
|
this._finder = new Finder(docShell);
|
|
this._finder.addResultListener({
|
|
onMatchesCountResult: (data) => {
|
|
sendAsyncMsg('findchange', {
|
|
active: true,
|
|
searchString: this._finder.searchString,
|
|
searchLimit: this._findLimit,
|
|
activeMatchOrdinal: data.current,
|
|
numberOfMatches: data.total
|
|
});
|
|
}
|
|
});
|
|
}
|
|
},
|
|
|
|
_recvFindAll: function(data) {
|
|
this._initFinder();
|
|
let searchString = data.json.searchString;
|
|
this._finder.caseSensitive = data.json.caseSensitive;
|
|
this._finder.fastFind(searchString, false, false);
|
|
this._finder.requestMatchesCount(searchString, this._findLimit, false);
|
|
},
|
|
|
|
_recvFindNext: function(data) {
|
|
if (!this._finder) {
|
|
debug("findNext() called before findAll()");
|
|
return;
|
|
}
|
|
this._finder.findAgain(data.json.backward, false, false);
|
|
this._finder.requestMatchesCount(this._finder.searchString, this._findLimit, false);
|
|
},
|
|
|
|
_recvClearMatch: function(data) {
|
|
if (!this._finder) {
|
|
debug("clearMach() called before findAll()");
|
|
return;
|
|
}
|
|
this._finder.removeSelection();
|
|
sendAsyncMsg('findchange', {active: false});
|
|
},
|
|
|
|
_recvSetInputMethodActive: function(data) {
|
|
let msgData = { id: data.json.id };
|
|
if (!this._isContentWindowCreated) {
|
|
if (data.json.args.isActive) {
|
|
// To activate the input method, we should wait before the content
|
|
// window is ready.
|
|
this._pendingSetInputMethodActive.push(data);
|
|
return;
|
|
}
|
|
msgData.successRv = null;
|
|
sendAsyncMsg('got-set-input-method-active', msgData);
|
|
return;
|
|
}
|
|
// Unwrap to access webpage content.
|
|
let nav = XPCNativeWrapper.unwrap(content.document.defaultView.navigator);
|
|
if (nav.mozInputMethod) {
|
|
// Wrap to access the chrome-only attribute setActive.
|
|
new XPCNativeWrapper(nav.mozInputMethod).setActive(data.json.args.isActive);
|
|
msgData.successRv = null;
|
|
} else {
|
|
msgData.errorMsg = 'Cannot access mozInputMethod.';
|
|
}
|
|
sendAsyncMsg('got-set-input-method-active', msgData);
|
|
},
|
|
|
|
// The docShell keeps a weak reference to the progress listener, so we need
|
|
// to keep a strong ref to it ourselves.
|
|
_progressListener: {
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
|
|
Ci.nsISupportsWeakReference]),
|
|
_seenLoadStart: false,
|
|
|
|
onLocationChange: function(webProgress, request, location, flags) {
|
|
// We get progress events from subshells here, which is kind of weird.
|
|
if (webProgress != docShell) {
|
|
return;
|
|
}
|
|
|
|
// Ignore locationchange events which occur before the first loadstart.
|
|
// These are usually about:blank loads we don't care about.
|
|
if (!this._seenLoadStart) {
|
|
return;
|
|
}
|
|
|
|
// Remove password and wyciwyg from uri.
|
|
location = Cc["@mozilla.org/docshell/urifixup;1"]
|
|
.getService(Ci.nsIURIFixup).createExposableURI(location);
|
|
|
|
sendAsyncMsg('locationchange', { _payload_: location.spec });
|
|
},
|
|
|
|
onStateChange: function(webProgress, request, stateFlags, status) {
|
|
if (webProgress != docShell) {
|
|
return;
|
|
}
|
|
|
|
if (stateFlags & Ci.nsIWebProgressListener.STATE_START) {
|
|
this._seenLoadStart = true;
|
|
sendAsyncMsg('loadstart');
|
|
}
|
|
|
|
if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP) {
|
|
let bgColor = 'transparent';
|
|
try {
|
|
bgColor = content.getComputedStyle(content.document.body)
|
|
.getPropertyValue('background-color');
|
|
} catch (e) {}
|
|
sendAsyncMsg('loadend', {backgroundColor: bgColor});
|
|
|
|
switch (status) {
|
|
case Cr.NS_OK :
|
|
case Cr.NS_BINDING_ABORTED :
|
|
// Ignoring NS_BINDING_ABORTED, which is set when loading page is
|
|
// stopped.
|
|
case Cr.NS_ERROR_PARSED_DATA_CACHED:
|
|
return;
|
|
|
|
// TODO See nsDocShell::DisplayLoadError to see what extra
|
|
// information we should be annotating this first block of errors
|
|
// with. Bug 1107091.
|
|
case Cr.NS_ERROR_UNKNOWN_PROTOCOL :
|
|
sendAsyncMsg('error', { type: 'unknownProtocolFound' });
|
|
return;
|
|
case Cr.NS_ERROR_FILE_NOT_FOUND :
|
|
sendAsyncMsg('error', { type: 'fileNotFound' });
|
|
return;
|
|
case Cr.NS_ERROR_UNKNOWN_HOST :
|
|
sendAsyncMsg('error', { type: 'dnsNotFound' });
|
|
return;
|
|
case Cr.NS_ERROR_CONNECTION_REFUSED :
|
|
sendAsyncMsg('error', { type: 'connectionFailure' });
|
|
return;
|
|
case Cr.NS_ERROR_NET_INTERRUPT :
|
|
sendAsyncMsg('error', { type: 'netInterrupt' });
|
|
return;
|
|
case Cr.NS_ERROR_NET_TIMEOUT :
|
|
sendAsyncMsg('error', { type: 'netTimeout' });
|
|
return;
|
|
case Cr.NS_ERROR_CSP_FRAME_ANCESTOR_VIOLATION :
|
|
sendAsyncMsg('error', { type: 'cspBlocked' });
|
|
return;
|
|
case Cr.NS_ERROR_PHISHING_URI :
|
|
sendAsyncMsg('error', { type: 'deceptiveBlocked' });
|
|
return;
|
|
case Cr.NS_ERROR_MALWARE_URI :
|
|
sendAsyncMsg('error', { type: 'malwareBlocked' });
|
|
return;
|
|
case Cr.NS_ERROR_UNWANTED_URI :
|
|
sendAsyncMsg('error', { type: 'unwantedBlocked' });
|
|
return;
|
|
case Cr.NS_ERROR_FORBIDDEN_URI :
|
|
sendAsyncMsg('error', { type: 'forbiddenBlocked' });
|
|
return;
|
|
|
|
case Cr.NS_ERROR_OFFLINE :
|
|
sendAsyncMsg('error', { type: 'offline' });
|
|
return;
|
|
case Cr.NS_ERROR_MALFORMED_URI :
|
|
sendAsyncMsg('error', { type: 'malformedURI' });
|
|
return;
|
|
case Cr.NS_ERROR_REDIRECT_LOOP :
|
|
sendAsyncMsg('error', { type: 'redirectLoop' });
|
|
return;
|
|
case Cr.NS_ERROR_UNKNOWN_SOCKET_TYPE :
|
|
sendAsyncMsg('error', { type: 'unknownSocketType' });
|
|
return;
|
|
case Cr.NS_ERROR_NET_RESET :
|
|
sendAsyncMsg('error', { type: 'netReset' });
|
|
return;
|
|
case Cr.NS_ERROR_DOCUMENT_NOT_CACHED :
|
|
sendAsyncMsg('error', { type: 'notCached' });
|
|
return;
|
|
case Cr.NS_ERROR_DOCUMENT_IS_PRINTMODE :
|
|
sendAsyncMsg('error', { type: 'isprinting' });
|
|
return;
|
|
case Cr.NS_ERROR_PORT_ACCESS_NOT_ALLOWED :
|
|
sendAsyncMsg('error', { type: 'deniedPortAccess' });
|
|
return;
|
|
case Cr.NS_ERROR_UNKNOWN_PROXY_HOST :
|
|
sendAsyncMsg('error', { type: 'proxyResolveFailure' });
|
|
return;
|
|
case Cr.NS_ERROR_PROXY_CONNECTION_REFUSED :
|
|
sendAsyncMsg('error', { type: 'proxyConnectFailure' });
|
|
return;
|
|
case Cr.NS_ERROR_INVALID_CONTENT_ENCODING :
|
|
sendAsyncMsg('error', { type: 'contentEncodingFailure' });
|
|
return;
|
|
case Cr.NS_ERROR_REMOTE_XUL :
|
|
sendAsyncMsg('error', { type: 'remoteXUL' });
|
|
return;
|
|
case Cr.NS_ERROR_UNSAFE_CONTENT_TYPE :
|
|
sendAsyncMsg('error', { type: 'unsafeContentType' });
|
|
return;
|
|
case Cr.NS_ERROR_CORRUPTED_CONTENT :
|
|
sendAsyncMsg('error', { type: 'corruptedContentErrorv2' });
|
|
return;
|
|
|
|
default:
|
|
// getErrorClass() will throw if the error code passed in is not a NSS
|
|
// error code.
|
|
try {
|
|
let nssErrorsService = Cc['@mozilla.org/nss_errors_service;1']
|
|
.getService(Ci.nsINSSErrorsService);
|
|
if (nssErrorsService.getErrorClass(status)
|
|
== Ci.nsINSSErrorsService.ERROR_CLASS_BAD_CERT) {
|
|
// XXX Is there a point firing the event if the error page is not
|
|
// certerror? If yes, maybe we should add a property to the
|
|
// event to to indicate whether there is a custom page. That would
|
|
// let the embedder have more control over the desired behavior.
|
|
let errorPage = null;
|
|
try {
|
|
errorPage = Services.prefs.getCharPref(CERTIFICATE_ERROR_PAGE_PREF);
|
|
} catch (e) {}
|
|
|
|
if (errorPage == 'certerror') {
|
|
sendAsyncMsg('error', { type: 'certerror' });
|
|
return;
|
|
}
|
|
}
|
|
} catch (e) {}
|
|
|
|
sendAsyncMsg('error', { type: 'other' });
|
|
return;
|
|
}
|
|
}
|
|
},
|
|
|
|
onSecurityChange: function(webProgress, request, state) {
|
|
if (webProgress != docShell) {
|
|
return;
|
|
}
|
|
|
|
var securityStateDesc;
|
|
if (state & Ci.nsIWebProgressListener.STATE_IS_SECURE) {
|
|
securityStateDesc = 'secure';
|
|
}
|
|
else if (state & Ci.nsIWebProgressListener.STATE_IS_BROKEN) {
|
|
securityStateDesc = 'broken';
|
|
}
|
|
else if (state & Ci.nsIWebProgressListener.STATE_IS_INSECURE) {
|
|
securityStateDesc = 'insecure';
|
|
}
|
|
else {
|
|
debug("Unexpected securitychange state!");
|
|
securityStateDesc = '???';
|
|
}
|
|
|
|
var trackingStateDesc;
|
|
if (state & Ci.nsIWebProgressListener.STATE_LOADED_TRACKING_CONTENT) {
|
|
trackingStateDesc = 'loaded_tracking_content';
|
|
}
|
|
else if (state & Ci.nsIWebProgressListener.STATE_BLOCKED_TRACKING_CONTENT) {
|
|
trackingStateDesc = 'blocked_tracking_content';
|
|
}
|
|
|
|
var mixedStateDesc;
|
|
if (state & Ci.nsIWebProgressListener.STATE_BLOCKED_MIXED_ACTIVE_CONTENT) {
|
|
mixedStateDesc = 'blocked_mixed_active_content';
|
|
}
|
|
else if (state & Ci.nsIWebProgressListener.STATE_LOADED_MIXED_ACTIVE_CONTENT) {
|
|
// Note that STATE_LOADED_MIXED_ACTIVE_CONTENT implies STATE_IS_BROKEN
|
|
mixedStateDesc = 'loaded_mixed_active_content';
|
|
}
|
|
|
|
var isEV = !!(state & Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL);
|
|
var isTrackingContent = !!(state &
|
|
(Ci.nsIWebProgressListener.STATE_BLOCKED_TRACKING_CONTENT |
|
|
Ci.nsIWebProgressListener.STATE_LOADED_TRACKING_CONTENT));
|
|
var isMixedContent = !!(state &
|
|
(Ci.nsIWebProgressListener.STATE_BLOCKED_MIXED_ACTIVE_CONTENT |
|
|
Ci.nsIWebProgressListener.STATE_LOADED_MIXED_ACTIVE_CONTENT));
|
|
|
|
sendAsyncMsg('securitychange', {
|
|
state: securityStateDesc,
|
|
trackingState: trackingStateDesc,
|
|
mixedState: mixedStateDesc,
|
|
extendedValidation: isEV,
|
|
trackingContent: isTrackingContent,
|
|
mixedContent: isMixedContent,
|
|
});
|
|
},
|
|
|
|
onStatusChange: function(webProgress, request, status, message) {},
|
|
onProgressChange: function(webProgress, request, curSelfProgress,
|
|
maxSelfProgress, curTotalProgress, maxTotalProgress) {},
|
|
},
|
|
|
|
// Expose the message manager for WebApps and others.
|
|
_messageManagerPublic: {
|
|
sendAsyncMessage: global.sendAsyncMessage.bind(global),
|
|
sendSyncMessage: global.sendSyncMessage.bind(global),
|
|
addMessageListener: global.addMessageListener.bind(global),
|
|
removeMessageListener: global.removeMessageListener.bind(global)
|
|
},
|
|
|
|
get messageManager() {
|
|
return this._messageManagerPublic;
|
|
}
|
|
};
|
|
|
|
var api = null;
|
|
if ('DoPreloadPostfork' in this && typeof this.DoPreloadPostfork === 'function') {
|
|
// If we are preloaded, instantiate BrowserElementChild after a content
|
|
// process is forked.
|
|
this.DoPreloadPostfork(function() {
|
|
api = new BrowserElementChild();
|
|
});
|
|
} else {
|
|
api = new BrowserElementChild();
|
|
}
|