forked from mirrors/gecko-dev
5dec0e0beb
This patch was autogenerated by my decomponents.py
It covers almost every file with the extension js, jsm, html, py,
xhtml, or xul.
It removes blank lines after removed lines, when the removed lines are
preceded by either blank lines or the start of a new block. The "start
of a new block" is defined fairly hackily: either the line starts with
//, ends with */, ends with {, <![CDATA[, """ or '''. The first two
cover comments, the third one covers JS, the fourth covers JS embedded
in XUL, and the final two cover JS embedded in Python. This also
applies if the removed line was the first line of the file.
It covers the pattern matching cases like "var {classes: Cc,
interfaces: Ci, utils: Cu, results: Cr} = Components;". It'll remove
the entire thing if they are all either Ci, Cr, Cc or Cu, or it will
remove the appropriate ones and leave the residue behind. If there's
only one behind, then it will turn it into a normal, non-pattern
matching variable definition. (For instance, "const { classes: Cc,
Constructor: CC, interfaces: Ci, utils: Cu } = Components" becomes
"const CC = Components.Constructor".)
MozReview-Commit-ID: DeSHcClQ7cG
--HG--
extra : rebase_source : d9c41878036c1ef7766ef5e91a7005025bc1d72b
919 lines
30 KiB
JavaScript
919 lines
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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/* 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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ChromeUtils.import("resource://gre/modules/Services.jsm");
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ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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ChromeUtils.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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|
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this._frameElement.dispatchEvent(evt);
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},
|
|
|
|
_handleScrollViewChange: function(data) {
|
|
let evt = this._createEvent("scrollviewchange", data.json,
|
|
/* cancelable = */ false);
|
|
this._frameElement.dispatchEvent(evt);
|
|
},
|
|
|
|
_handleFindChange: function(data) {
|
|
let evt = this._createEvent("findchange", data.json,
|
|
/* cancelable = */ false);
|
|
this._frameElement.dispatchEvent(evt);
|
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},
|
|
|
|
_createEvent: function(evtName, detail, cancelable) {
|
|
// This will have to change if we ever want to send a CustomEvent with null
|
|
// detail. For now, it's OK.
|
|
if (detail !== undefined && detail !== null) {
|
|
detail = Cu.cloneInto(detail, this._window);
|
|
return new this._window.CustomEvent('mozbrowser' + evtName,
|
|
{ bubbles: true,
|
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cancelable: cancelable,
|
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detail: detail });
|
|
}
|
|
|
|
return new this._window.Event('mozbrowser' + evtName,
|
|
{ bubbles: true,
|
|
cancelable: cancelable });
|
|
},
|
|
|
|
/**
|
|
* Kick off a DOMRequest in the child process.
|
|
*
|
|
* We'll fire an event called |msgName| on the child process, passing along
|
|
* an object with two fields:
|
|
*
|
|
* - id: the ID of this request.
|
|
* - arg: arguments to pass to the child along with this request.
|
|
*
|
|
* We expect the child to pass the ID back to us upon completion of the
|
|
* request. See _gotDOMRequestResult.
|
|
*/
|
|
_sendDOMRequest: function(msgName, args) {
|
|
let id = 'req_' + this._domRequestCounter++;
|
|
let req = Services.DOMRequest.createRequest(this._window);
|
|
let self = this;
|
|
let send = function() {
|
|
if (!self._isAlive()) {
|
|
return;
|
|
}
|
|
if (self._sendAsyncMsg(msgName, {id: id, args: args})) {
|
|
self._pendingDOMRequests[id] = req;
|
|
} else {
|
|
Services.DOMRequest.fireErrorAsync(req, "fail");
|
|
}
|
|
};
|
|
if (this._domRequestReady) {
|
|
send();
|
|
} else {
|
|
// Child haven't been loaded.
|
|
this._pendingAPICalls.push(send);
|
|
}
|
|
return req;
|
|
},
|
|
|
|
/**
|
|
* Called when the child process finishes handling a DOMRequest. data.json
|
|
* must have the fields [id, successRv], if the DOMRequest was successful, or
|
|
* [id, errorMsg], if the request was not successful.
|
|
*
|
|
* The fields have the following meanings:
|
|
*
|
|
* - id: the ID of the DOM request (see _sendDOMRequest)
|
|
* - successRv: the request's return value, if the request succeeded
|
|
* - 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]);
|