зеркало из https://github.com/mozilla/gecko-dev.git
925 строки
30 KiB
JavaScript
925 строки
30 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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var Cu = Components.utils;
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var Ci = Components.interfaces;
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var Cc = Components.classes;
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var Cr = Components.results;
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/* BrowserElementParent injects script to listen for certain events in the
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* child. We then listen to messages from the child script and take
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* appropriate action here in the parent.
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*/
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/NetUtil.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/BrowserElementPromptService.jsm");
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function debug(msg) {
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//dump("BrowserElementParent - " + msg + "\n");
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}
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function getIntPref(prefName, def) {
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try {
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return Services.prefs.getIntPref(prefName);
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}
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catch(err) {
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return def;
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}
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}
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function handleWindowEvent(e) {
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if (this._browserElementParents) {
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let beps = ChromeUtils.nondeterministicGetWeakMapKeys(this._browserElementParents);
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beps.forEach(bep => bep._handleOwnerEvent(e));
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}
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}
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function defineNoReturnMethod(fn) {
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return function method() {
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if (!this._domRequestReady) {
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// Remote browser haven't been created, we just queue the API call.
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let args = Array.slice(arguments);
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args.unshift(this);
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this._pendingAPICalls.push(method.bind.apply(fn, args));
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return;
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}
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if (this._isAlive()) {
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fn.apply(this, arguments);
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}
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};
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}
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function defineDOMRequestMethod(msgName) {
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return function() {
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return this._sendDOMRequest(msgName);
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};
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}
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function BrowserElementParent() {
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debug("Creating new BrowserElementParent object");
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this._domRequestCounter = 0;
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this._domRequestReady = false;
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this._pendingAPICalls = [];
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this._pendingDOMRequests = {};
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this._nextPaintListeners = [];
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this._pendingDOMFullscreen = false;
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Services.obs.addObserver(this, 'oop-frameloader-crashed', /* ownsWeak = */ true);
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Services.obs.addObserver(this, 'ask-children-to-execute-copypaste-command', /* ownsWeak = */ true);
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Services.obs.addObserver(this, 'back-docommand', /* ownsWeak = */ true);
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}
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BrowserElementParent.prototype = {
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classDescription: "BrowserElementAPI implementation",
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classID: Components.ID("{9f171ac4-0939-4ef8-b360-3408aedc3060}"),
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contractID: "@mozilla.org/dom/browser-element-api;1",
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIBrowserElementAPI,
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Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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setFrameLoader: function(frameLoader) {
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debug("Setting frameLoader");
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this._frameLoader = frameLoader;
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this._frameElement = frameLoader.QueryInterface(Ci.nsIFrameLoader).ownerElement;
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if (!this._frameElement) {
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debug("No frame element?");
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return;
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}
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// Listen to visibilitychange on the iframe's owner window, and forward
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// changes down to the child. We want to do this while registering as few
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// visibilitychange listeners on _window as possible, because such a listener
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// may live longer than this BrowserElementParent object.
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//
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// To accomplish this, we register just one listener on the window, and have
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// it reference a WeakMap whose keys are all the BrowserElementParent objects
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// on the window. Then when the listener fires, we iterate over the
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// WeakMap's keys (which we can do, because we're chrome) to notify the
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// BrowserElementParents.
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if (!this._window._browserElementParents) {
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this._window._browserElementParents = new WeakMap();
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let handler = handleWindowEvent.bind(this._window);
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let windowEvents = ['visibilitychange', 'fullscreenchange'];
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let els = Cc["@mozilla.org/eventlistenerservice;1"]
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.getService(Ci.nsIEventListenerService);
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for (let event of windowEvents) {
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els.addSystemEventListener(this._window, event, handler,
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/* useCapture = */ true);
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}
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}
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this._window._browserElementParents.set(this, null);
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// Insert ourself into the prompt service.
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BrowserElementPromptService.mapFrameToBrowserElementParent(this._frameElement, this);
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this._setupMessageListener();
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},
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destroyFrameScripts() {
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debug("Destroying frame scripts");
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this._mm.sendAsyncMessage("browser-element-api:destroy");
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},
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_runPendingAPICall: function() {
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if (!this._pendingAPICalls) {
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return;
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}
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for (let i = 0; i < this._pendingAPICalls.length; i++) {
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try {
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this._pendingAPICalls[i]();
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} catch (e) {
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// throw the expections from pending functions.
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debug('Exception when running pending API call: ' + e);
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}
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}
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delete this._pendingAPICalls;
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},
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_setupMessageListener: function() {
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this._mm = this._frameLoader.messageManager;
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this._mm.addMessageListener('browser-element-api:call', this);
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},
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receiveMessage: function(aMsg) {
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if (!this._isAlive()) {
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return;
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}
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// Messages we receive are handed to functions which take a (data) argument,
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// where |data| is the message manager's data object.
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// We use a single message and dispatch to various function based
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// on data.msg_name
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let mmCalls = {
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"hello": this._recvHello,
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"loadstart": this._fireProfiledEventFromMsg,
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"loadend": this._fireProfiledEventFromMsg,
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"close": this._fireEventFromMsg,
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"error": this._fireEventFromMsg,
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"firstpaint": this._fireProfiledEventFromMsg,
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"documentfirstpaint": this._fireProfiledEventFromMsg,
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"nextpaint": this._recvNextPaint,
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"got-purge-history": this._gotDOMRequestResult,
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"got-screenshot": this._gotDOMRequestResult,
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"got-contentdimensions": this._gotDOMRequestResult,
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"got-can-go-back": this._gotDOMRequestResult,
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"got-can-go-forward": this._gotDOMRequestResult,
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"requested-dom-fullscreen": this._requestedDOMFullscreen,
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"fullscreen-origin-change": this._fullscreenOriginChange,
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"exit-dom-fullscreen": this._exitDomFullscreen,
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"got-visible": this._gotDOMRequestResult,
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"got-set-input-method-active": this._gotDOMRequestResult,
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"scrollviewchange": this._handleScrollViewChange,
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"caretstatechanged": this._handleCaretStateChanged,
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"findchange": this._handleFindChange,
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"execute-script-done": this._gotDOMRequestResult,
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"got-web-manifest": this._gotDOMRequestResult,
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};
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let mmSecuritySensitiveCalls = {
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"audioplaybackchange": this._fireEventFromMsg,
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"showmodalprompt": this._handleShowModalPrompt,
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"contextmenu": this._fireCtxMenuEvent,
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"securitychange": this._fireEventFromMsg,
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"locationchange": this._fireEventFromMsg,
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"iconchange": this._fireEventFromMsg,
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"scrollareachanged": this._fireEventFromMsg,
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"titlechange": this._fireProfiledEventFromMsg,
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"opensearch": this._fireEventFromMsg,
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"manifestchange": this._fireEventFromMsg,
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"metachange": this._fireEventFromMsg,
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"resize": this._fireEventFromMsg,
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"activitydone": this._fireEventFromMsg,
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"scroll": this._fireEventFromMsg,
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"opentab": this._fireEventFromMsg
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};
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if (aMsg.data.msg_name in mmCalls) {
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return mmCalls[aMsg.data.msg_name].apply(this, arguments);
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} else if (aMsg.data.msg_name in mmSecuritySensitiveCalls) {
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return mmSecuritySensitiveCalls[aMsg.data.msg_name].apply(this, arguments);
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}
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},
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_removeMessageListener: function() {
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this._mm.removeMessageListener('browser-element-api:call', this);
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},
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/**
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* You shouldn't touch this._frameElement or this._window if _isAlive is
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* false. (You'll likely get an exception if you do.)
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*/
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_isAlive: function() {
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return !Cu.isDeadWrapper(this._frameElement) &&
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!Cu.isDeadWrapper(this._frameElement.ownerDocument) &&
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!Cu.isDeadWrapper(this._frameElement.ownerGlobal);
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},
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get _window() {
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return this._frameElement.ownerGlobal;
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},
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get _windowUtils() {
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return this._window.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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},
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promptAuth: function(authDetail, callback) {
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let evt;
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let self = this;
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let callbackCalled = false;
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let cancelCallback = function() {
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if (!callbackCalled) {
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callbackCalled = true;
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callback(false, null, null);
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}
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};
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// We don't handle password-only prompts.
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if (authDetail.isOnlyPassword) {
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cancelCallback();
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return;
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}
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/* username and password */
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let detail = {
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host: authDetail.host,
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path: authDetail.path,
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realm: authDetail.realm,
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isProxy: authDetail.isProxy
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};
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evt = this._createEvent('usernameandpasswordrequired', detail,
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/* cancelable */ true);
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Cu.exportFunction(function(username, password) {
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if (callbackCalled)
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return;
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callbackCalled = true;
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callback(true, username, password);
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}, evt.detail, { defineAs: 'authenticate' });
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Cu.exportFunction(cancelCallback, evt.detail, { defineAs: 'cancel' });
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this._frameElement.dispatchEvent(evt);
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if (!evt.defaultPrevented) {
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cancelCallback();
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}
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},
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_sendAsyncMsg: function(msg, data) {
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try {
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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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this._mm.sendAsyncMessage('browser-element-api:call', data);
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} catch (e) {
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return false;
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}
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return true;
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},
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_recvHello: function() {
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debug("recvHello");
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// Inform our child if our owner element's document is invisible. Note
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// that we must do so here, rather than in the BrowserElementParent
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// constructor, because the BrowserElementChild may not be initialized when
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// we run our constructor.
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if (this._window.document.hidden) {
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this._ownerVisibilityChange();
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}
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if (!this._domRequestReady) {
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// At least, one message listener such as for hello is registered.
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// So we can use sendAsyncMessage now.
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this._domRequestReady = true;
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this._runPendingAPICall();
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}
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},
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_fireCtxMenuEvent: function(data) {
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let detail = data.json;
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let evtName = detail.msg_name;
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debug('fireCtxMenuEventFromMsg: ' + evtName + ' ' + detail);
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let evt = this._createEvent(evtName, detail, /* cancellable */ true);
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if (detail.contextmenu) {
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var self = this;
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Cu.exportFunction(function(id) {
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self._sendAsyncMsg('fire-ctx-callback', {menuitem: id});
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}, evt.detail, { defineAs: 'contextMenuItemSelected' });
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}
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// The embedder may have default actions on context menu events, so
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// we fire a context menu event even if the child didn't define a
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// custom context menu
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return !this._frameElement.dispatchEvent(evt);
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},
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/**
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* add profiler marker for each event fired.
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*/
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_fireProfiledEventFromMsg: function(data) {
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if (Services.profiler !== undefined) {
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Services.profiler.AddMarker(data.json.msg_name);
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}
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this._fireEventFromMsg(data);
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},
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/**
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* Fire either a vanilla or a custom event, depending on the contents of
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* |data|.
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*/
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_fireEventFromMsg: function(data) {
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let detail = data.json;
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let name = detail.msg_name;
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// For events that send a "_payload_" property, we just want to transmit
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// this in the event.
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if ("_payload_" in detail) {
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detail = detail._payload_;
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}
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debug('fireEventFromMsg: ' + name + ', ' + JSON.stringify(detail));
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let evt = this._createEvent(name, detail,
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/* cancelable = */ false);
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this._frameElement.dispatchEvent(evt);
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},
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_handleShowModalPrompt: function(data) {
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// Fire a showmodalprmopt event on the iframe. When this method is called,
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// the child is spinning in a nested event loop waiting for an
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// unblock-modal-prompt message.
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//
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// If the embedder calls preventDefault() on the showmodalprompt event,
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// we'll block the child until event.detail.unblock() is called.
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//
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// Otherwise, if preventDefault() is not called, we'll send the
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// unblock-modal-prompt message to the child as soon as the event is done
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// dispatching.
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let detail = data.json;
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debug('handleShowPrompt ' + JSON.stringify(detail));
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// Strip off the windowID property from the object we send along in the
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// event.
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let windowID = detail.windowID;
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delete detail.windowID;
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debug("Event will have detail: " + JSON.stringify(detail));
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let evt = this._createEvent('showmodalprompt', detail,
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/* cancelable = */ true);
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let self = this;
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let unblockMsgSent = false;
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function sendUnblockMsg() {
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if (unblockMsgSent) {
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return;
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}
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unblockMsgSent = true;
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// We don't need to sanitize evt.detail.returnValue (e.g. converting the
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// return value of confirm() to a boolean); Gecko does that for us.
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let data = { windowID: windowID,
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returnValue: evt.detail.returnValue };
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self._sendAsyncMsg('unblock-modal-prompt', data);
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}
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Cu.exportFunction(sendUnblockMsg, evt.detail, { defineAs: 'unblock' });
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this._frameElement.dispatchEvent(evt);
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if (!evt.defaultPrevented) {
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// Unblock the inner frame immediately. Otherwise we'll unblock upon
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// evt.detail.unblock().
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sendUnblockMsg();
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}
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},
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// Called when state of accessible caret in child has changed.
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// The fields of data is as following:
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// - rect: Contains bounding rectangle of selection, Include width, height,
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// top, bottom, left and right.
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// - commands: Describe what commands can be executed in child. Include canSelectAll,
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// canCut, canCopy and canPaste. For example: if we want to check if cut
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// command is available, using following code, if (data.commands.canCut) {}.
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// - zoomFactor: Current zoom factor in child frame.
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// - reason: The reason causes the state changed. Include "visibilitychange",
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// "updateposition", "longpressonemptycontent", "taponcaret", "presscaret",
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// "releasecaret".
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// - collapsed: Indicate current selection is collapsed or not.
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// - caretVisible: Indicate the caret visiibility.
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// - selectionVisible: Indicate current selection is visible or not.
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// - selectionEditable: Indicate current selection is editable or not.
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// - selectedTextContent: Contains current selected text content, which is
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// equivalent to the string returned by Selection.toString().
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_handleCaretStateChanged: function(data) {
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let evt = this._createEvent('caretstatechanged', data.json,
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/* cancelable = */ false);
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let self = this;
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function sendDoCommandMsg(cmd) {
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let data = { command: cmd };
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self._sendAsyncMsg('copypaste-do-command', data);
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}
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Cu.exportFunction(sendDoCommandMsg, evt.detail, { defineAs: 'sendDoCommandMsg' });
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this._frameElement.dispatchEvent(evt);
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},
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_handleScrollViewChange: function(data) {
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let evt = this._createEvent("scrollviewchange", data.json,
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/* cancelable = */ false);
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this._frameElement.dispatchEvent(evt);
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},
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_handleFindChange: function(data) {
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let evt = this._createEvent("findchange", data.json,
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/* cancelable = */ false);
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this._frameElement.dispatchEvent(evt);
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},
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_createEvent: function(evtName, detail, cancelable) {
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// This will have to change if we ever want to send a CustomEvent with null
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// detail. For now, it's OK.
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if (detail !== undefined && detail !== null) {
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detail = Cu.cloneInto(detail, this._window);
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return new this._window.CustomEvent('mozbrowser' + evtName,
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{ bubbles: true,
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cancelable: cancelable,
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detail: detail });
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}
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return new this._window.Event('mozbrowser' + evtName,
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{ bubbles: true,
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cancelable: cancelable });
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},
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/**
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* Kick off a DOMRequest in the child process.
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*
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* We'll fire an event called |msgName| on the child process, passing along
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* an object with two fields:
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*
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* - id: the ID of this request.
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* - arg: arguments to pass to the child along with this request.
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*
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* We expect the child to pass the ID back to us upon completion of the
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* request. See _gotDOMRequestResult.
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*/
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_sendDOMRequest: function(msgName, args) {
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let id = 'req_' + this._domRequestCounter++;
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let req = Services.DOMRequest.createRequest(this._window);
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let self = this;
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let send = function() {
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if (!self._isAlive()) {
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return;
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}
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if (self._sendAsyncMsg(msgName, {id: id, args: args})) {
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self._pendingDOMRequests[id] = req;
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} else {
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Services.DOMRequest.fireErrorAsync(req, "fail");
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}
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};
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if (this._domRequestReady) {
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send();
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} else {
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// Child haven't been loaded.
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this._pendingAPICalls.push(send);
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}
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return req;
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},
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/**
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* Called when the child process finishes handling a DOMRequest. data.json
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* must have the fields [id, successRv], if the DOMRequest was successful, or
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* [id, errorMsg], if the request was not successful.
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*
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* The fields have the following meanings:
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*
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* - id: the ID of the DOM request (see _sendDOMRequest)
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* - successRv: the request's return value, if the request succeeded
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* - errorMsg: the message to pass to DOMRequest.fireError(), if the request
|
|
* failed.
|
|
*
|
|
*/
|
|
_gotDOMRequestResult: function(data) {
|
|
let req = this._pendingDOMRequests[data.json.id];
|
|
delete this._pendingDOMRequests[data.json.id];
|
|
|
|
if ('successRv' in data.json) {
|
|
debug("Successful gotDOMRequestResult.");
|
|
let clientObj = Cu.cloneInto(data.json.successRv, this._window);
|
|
Services.DOMRequest.fireSuccess(req, clientObj);
|
|
}
|
|
else {
|
|
debug("Got error in gotDOMRequestResult.");
|
|
Services.DOMRequest.fireErrorAsync(req,
|
|
Cu.cloneInto(data.json.errorMsg, this._window));
|
|
}
|
|
},
|
|
|
|
getChildProcessOffset: function() {
|
|
let offset = { x: 0, y: 0 };
|
|
let tabParent = this._frameLoader.tabParent;
|
|
if (tabParent) {
|
|
let offsetX = {};
|
|
let offsetY = {};
|
|
tabParent.getChildProcessOffset(offsetX, offsetY);
|
|
offset.x = offsetX.value;
|
|
offset.y = offsetY.value;
|
|
}
|
|
return offset;
|
|
},
|
|
|
|
sendMouseEvent: defineNoReturnMethod(function(type, x, y, button, clickCount, modifiers) {
|
|
let offset = this.getChildProcessOffset();
|
|
x += offset.x;
|
|
y += offset.y;
|
|
|
|
this._sendAsyncMsg("send-mouse-event", {
|
|
"type": type,
|
|
"x": x,
|
|
"y": y,
|
|
"button": button,
|
|
"clickCount": clickCount,
|
|
"modifiers": modifiers
|
|
});
|
|
}),
|
|
|
|
sendTouchEvent: defineNoReturnMethod(function(type, identifiers, touchesX, touchesY,
|
|
radiisX, radiisY, rotationAngles, forces,
|
|
count, modifiers) {
|
|
|
|
let offset = this.getChildProcessOffset();
|
|
for (var i = 0; i < touchesX.length; i++) {
|
|
touchesX[i] += offset.x;
|
|
}
|
|
for (var i = 0; i < touchesY.length; i++) {
|
|
touchesY[i] += offset.y;
|
|
}
|
|
this._sendAsyncMsg("send-touch-event", {
|
|
"type": type,
|
|
"identifiers": identifiers,
|
|
"touchesX": touchesX,
|
|
"touchesY": touchesY,
|
|
"radiisX": radiisX,
|
|
"radiisY": radiisY,
|
|
"rotationAngles": rotationAngles,
|
|
"forces": forces,
|
|
"count": count,
|
|
"modifiers": modifiers
|
|
});
|
|
}),
|
|
|
|
getCanGoBack: defineDOMRequestMethod('get-can-go-back'),
|
|
getCanGoForward: defineDOMRequestMethod('get-can-go-forward'),
|
|
getContentDimensions: defineDOMRequestMethod('get-contentdimensions'),
|
|
|
|
findAll: defineNoReturnMethod(function(searchString, caseSensitivity) {
|
|
return this._sendAsyncMsg('find-all', {
|
|
searchString,
|
|
caseSensitive: caseSensitivity == Ci.nsIBrowserElementAPI.FIND_CASE_SENSITIVE
|
|
});
|
|
}),
|
|
|
|
findNext: defineNoReturnMethod(function(direction) {
|
|
return this._sendAsyncMsg('find-next', {
|
|
backward: direction == Ci.nsIBrowserElementAPI.FIND_BACKWARD
|
|
});
|
|
}),
|
|
|
|
clearMatch: defineNoReturnMethod(function() {
|
|
return this._sendAsyncMsg('clear-match');
|
|
}),
|
|
|
|
goBack: defineNoReturnMethod(function() {
|
|
this._sendAsyncMsg('go-back');
|
|
}),
|
|
|
|
goForward: defineNoReturnMethod(function() {
|
|
this._sendAsyncMsg('go-forward');
|
|
}),
|
|
|
|
reload: defineNoReturnMethod(function(hardReload) {
|
|
this._sendAsyncMsg('reload', {hardReload: hardReload});
|
|
}),
|
|
|
|
stop: defineNoReturnMethod(function() {
|
|
this._sendAsyncMsg('stop');
|
|
}),
|
|
|
|
executeScript: function(script, options) {
|
|
if (!this._isAlive()) {
|
|
throw Components.Exception("Dead content process",
|
|
Cr.NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
|
|
// Enforcing options.url or options.origin
|
|
if (!options.url && !options.origin) {
|
|
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
|
}
|
|
return this._sendDOMRequest('execute-script', {script, options});
|
|
},
|
|
|
|
/*
|
|
* The valid range of zoom scale is defined in preference "zoom.maxPercent" and "zoom.minPercent".
|
|
*/
|
|
zoom: defineNoReturnMethod(function(zoom) {
|
|
zoom *= 100;
|
|
zoom = Math.min(getIntPref("zoom.maxPercent", 300), zoom);
|
|
zoom = Math.max(getIntPref("zoom.minPercent", 50), zoom);
|
|
this._sendAsyncMsg('zoom', {zoom: zoom / 100.0});
|
|
}),
|
|
|
|
purgeHistory: defineDOMRequestMethod('purge-history'),
|
|
|
|
|
|
download: function(_url, _options) {
|
|
if (!this._isAlive()) {
|
|
return null;
|
|
}
|
|
|
|
let uri = Services.io.newURI(_url);
|
|
let url = uri.QueryInterface(Ci.nsIURL);
|
|
|
|
debug('original _options = ' + uneval(_options));
|
|
|
|
// Ensure we have _options, we always use it to send the filename.
|
|
_options = _options || {};
|
|
if (!_options.filename) {
|
|
_options.filename = url.fileName;
|
|
}
|
|
|
|
debug('final _options = ' + uneval(_options));
|
|
|
|
// Ensure we have a filename.
|
|
if (!_options.filename) {
|
|
throw Components.Exception("Invalid argument", Cr.NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
let interfaceRequestor =
|
|
this._frameLoader.loadContext.QueryInterface(Ci.nsIInterfaceRequestor);
|
|
let req = Services.DOMRequest.createRequest(this._window);
|
|
|
|
function DownloadListener() {
|
|
debug('DownloadListener Constructor');
|
|
}
|
|
DownloadListener.prototype = {
|
|
extListener: null,
|
|
onStartRequest: function(aRequest, aContext) {
|
|
debug('DownloadListener - onStartRequest');
|
|
let extHelperAppSvc =
|
|
Cc['@mozilla.org/uriloader/external-helper-app-service;1'].
|
|
getService(Ci.nsIExternalHelperAppService);
|
|
let channel = aRequest.QueryInterface(Ci.nsIChannel);
|
|
|
|
// First, we'll ensure the filename doesn't have any leading
|
|
// periods. We have to do it here to avoid ending up with a filename
|
|
// that's only an extension with no extension (e.g. Sending in
|
|
// '.jpeg' without stripping the '.' would result in a filename of
|
|
// 'jpeg' where we want 'jpeg.jpeg'.
|
|
_options.filename = _options.filename.replace(/^\.+/, "");
|
|
|
|
let ext = null;
|
|
let mimeSvc = extHelperAppSvc.QueryInterface(Ci.nsIMIMEService);
|
|
try {
|
|
ext = '.' + mimeSvc.getPrimaryExtension(channel.contentType, '');
|
|
} catch (e) { ext = null; }
|
|
|
|
// Check if we need to add an extension to the filename.
|
|
if (ext && !_options.filename.endsWith(ext)) {
|
|
_options.filename += ext;
|
|
}
|
|
// Set the filename to use when saving to disk.
|
|
channel.contentDispositionFilename = _options.filename;
|
|
|
|
this.extListener =
|
|
extHelperAppSvc.doContent(
|
|
channel.contentType,
|
|
aRequest,
|
|
interfaceRequestor,
|
|
true);
|
|
this.extListener.onStartRequest(aRequest, aContext);
|
|
},
|
|
onStopRequest: function(aRequest, aContext, aStatusCode) {
|
|
debug('DownloadListener - onStopRequest (aStatusCode = ' +
|
|
aStatusCode + ')');
|
|
if (aStatusCode == Cr.NS_OK) {
|
|
// Everything looks great.
|
|
debug('DownloadListener - Download Successful.');
|
|
Services.DOMRequest.fireSuccess(req, aStatusCode);
|
|
}
|
|
else {
|
|
// In case of failure, we'll simply return the failure status code.
|
|
debug('DownloadListener - Download Failed!');
|
|
Services.DOMRequest.fireError(req, aStatusCode);
|
|
}
|
|
|
|
if (this.extListener) {
|
|
this.extListener.onStopRequest(aRequest, aContext, aStatusCode);
|
|
}
|
|
},
|
|
onDataAvailable: function(aRequest, aContext, aInputStream,
|
|
aOffset, aCount) {
|
|
this.extListener.onDataAvailable(aRequest, aContext, aInputStream,
|
|
aOffset, aCount);
|
|
},
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIStreamListener,
|
|
Ci.nsIRequestObserver])
|
|
};
|
|
|
|
let referrer = Services.io.newURI(_options.referrer);
|
|
let principal =
|
|
Services.scriptSecurityManager.createCodebasePrincipal(
|
|
referrer, this._frameLoader.loadContext.originAttributes);
|
|
|
|
let channel = NetUtil.newChannel({
|
|
uri: url,
|
|
loadingPrincipal: principal,
|
|
securityFlags: SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS,
|
|
contentPolicyType: Ci.nsIContentPolicy.TYPE_OTHER
|
|
});
|
|
|
|
// XXX We would set private browsing information prior to calling this.
|
|
channel.notificationCallbacks = interfaceRequestor;
|
|
|
|
// Since we're downloading our own local copy we'll want to bypass the
|
|
// cache and local cache if the channel let's us specify this.
|
|
let flags = Ci.nsIChannel.LOAD_CALL_CONTENT_SNIFFERS |
|
|
Ci.nsIChannel.LOAD_BYPASS_CACHE;
|
|
if (channel instanceof Ci.nsICachingChannel) {
|
|
debug('This is a caching channel. Forcing bypass.');
|
|
flags |= Ci.nsICachingChannel.LOAD_BYPASS_LOCAL_CACHE_IF_BUSY;
|
|
}
|
|
|
|
channel.loadFlags |= flags;
|
|
|
|
if (channel instanceof Ci.nsIHttpChannel) {
|
|
debug('Setting HTTP referrer = ' + (referrer && referrer.spec));
|
|
channel.referrer = referrer;
|
|
if (channel instanceof Ci.nsIHttpChannelInternal) {
|
|
channel.forceAllowThirdPartyCookie = true;
|
|
}
|
|
}
|
|
|
|
// Set-up complete, let's get things started.
|
|
channel.asyncOpen2(new DownloadListener());
|
|
|
|
return req;
|
|
},
|
|
|
|
getScreenshot: function(_width, _height, _mimeType) {
|
|
if (!this._isAlive()) {
|
|
throw Components.Exception("Dead content process",
|
|
Cr.NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
|
|
let width = parseInt(_width);
|
|
let height = parseInt(_height);
|
|
let mimeType = (typeof _mimeType === 'string') ?
|
|
_mimeType.trim().toLowerCase() : 'image/jpeg';
|
|
if (isNaN(width) || isNaN(height) || width < 0 || height < 0) {
|
|
throw Components.Exception("Invalid argument",
|
|
Cr.NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
return this._sendDOMRequest('get-screenshot',
|
|
{width: width, height: height,
|
|
mimeType: mimeType});
|
|
},
|
|
|
|
_recvNextPaint: function(data) {
|
|
let listeners = this._nextPaintListeners;
|
|
this._nextPaintListeners = [];
|
|
for (let listener of listeners) {
|
|
try {
|
|
listener.recvNextPaint();
|
|
} catch (e) {
|
|
// If a listener throws we'll continue.
|
|
}
|
|
}
|
|
},
|
|
|
|
addNextPaintListener: function(listener) {
|
|
if (!this._isAlive()) {
|
|
throw Components.Exception("Dead content process",
|
|
Cr.NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
|
|
let self = this;
|
|
let run = function() {
|
|
if (self._nextPaintListeners.push(listener) == 1)
|
|
self._sendAsyncMsg('activate-next-paint-listener');
|
|
};
|
|
if (!this._domRequestReady) {
|
|
this._pendingAPICalls.push(run);
|
|
} else {
|
|
run();
|
|
}
|
|
},
|
|
|
|
removeNextPaintListener: function(listener) {
|
|
if (!this._isAlive()) {
|
|
throw Components.Exception("Dead content process",
|
|
Cr.NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
}
|
|
|
|
let self = this;
|
|
let run = function() {
|
|
for (let i = self._nextPaintListeners.length - 1; i >= 0; i--) {
|
|
if (self._nextPaintListeners[i] == listener) {
|
|
self._nextPaintListeners.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (self._nextPaintListeners.length == 0)
|
|
self._sendAsyncMsg('deactivate-next-paint-listener');
|
|
};
|
|
if (!this._domRequestReady) {
|
|
this._pendingAPICalls.push(run);
|
|
} else {
|
|
run();
|
|
}
|
|
},
|
|
|
|
getWebManifest: defineDOMRequestMethod('get-web-manifest'),
|
|
/**
|
|
* Called when the visibility of the window which owns this iframe changes.
|
|
*/
|
|
_ownerVisibilityChange: function() {
|
|
this._sendAsyncMsg('owner-visibility-change',
|
|
{visible: !this._window.document.hidden});
|
|
},
|
|
|
|
_requestedDOMFullscreen: function() {
|
|
this._pendingDOMFullscreen = true;
|
|
this._windowUtils.remoteFrameFullscreenChanged(this._frameElement);
|
|
},
|
|
|
|
_fullscreenOriginChange: function(data) {
|
|
Services.obs.notifyObservers(
|
|
this._frameElement, "fullscreen-origin-change", data.json.originNoSuffix);
|
|
},
|
|
|
|
_exitDomFullscreen: function(data) {
|
|
this._windowUtils.remoteFrameFullscreenReverted();
|
|
},
|
|
|
|
_handleOwnerEvent: function(evt) {
|
|
switch (evt.type) {
|
|
case 'visibilitychange':
|
|
this._ownerVisibilityChange();
|
|
break;
|
|
case 'fullscreenchange':
|
|
if (!this._window.document.fullscreenElement) {
|
|
this._sendAsyncMsg('exit-fullscreen');
|
|
} else if (this._pendingDOMFullscreen) {
|
|
this._pendingDOMFullscreen = false;
|
|
this._sendAsyncMsg('entered-fullscreen');
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
_fireFatalError: function() {
|
|
let evt = this._createEvent('error', {type: 'fatal'},
|
|
/* cancelable = */ false);
|
|
this._frameElement.dispatchEvent(evt);
|
|
},
|
|
|
|
observe: function(subject, topic, data) {
|
|
switch(topic) {
|
|
case 'oop-frameloader-crashed':
|
|
if (this._isAlive() && subject == this._frameLoader) {
|
|
this._fireFatalError();
|
|
}
|
|
break;
|
|
case 'ask-children-to-execute-copypaste-command':
|
|
if (this._isAlive() && this._frameElement == subject.wrappedJSObject) {
|
|
this._sendAsyncMsg('copypaste-do-command', { command: data });
|
|
}
|
|
break;
|
|
case 'back-docommand':
|
|
if (this._isAlive() && this._frameLoader.visible) {
|
|
this.goBack();
|
|
}
|
|
break;
|
|
default:
|
|
debug('Unknown topic: ' + topic);
|
|
break;
|
|
};
|
|
},
|
|
};
|
|
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([BrowserElementParent]);
|