mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
797 lines
26 KiB
JavaScript
797 lines
26 KiB
JavaScript
// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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let Cc = Components.classes;
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let Ci = Components.interfaces;
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let Cu = Components.utils;
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Cu.import("resource://gre/modules/Services.jsm");
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let WebProgressListener = {
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_lastLocation: null,
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_firstPaint: false,
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init: function() {
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let flags = Ci.nsIWebProgress.NOTIFY_LOCATION |
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Ci.nsIWebProgress.NOTIFY_SECURITY |
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Ci.nsIWebProgress.NOTIFY_STATE_WINDOW |
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Ci.nsIWebProgress.NOTIFY_STATE_NETWORK |
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Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT;
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let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebProgress);
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webProgress.addProgressListener(this, flags);
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},
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onStateChange: function onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
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if (content != aWebProgress.DOMWindow)
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return;
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sendAsyncMessage("Content:StateChange", {
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contentWindowId: this.contentWindowId,
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stateFlags: aStateFlags,
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status: aStatus
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});
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},
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onLocationChange: function onLocationChange(aWebProgress, aRequest, aLocationURI, aFlags) {
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if (content != aWebProgress.DOMWindow)
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return;
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let spec = aLocationURI ? aLocationURI.spec : "";
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let location = spec.split("#")[0];
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let charset = content.document.characterSet;
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sendAsyncMessage("Content:LocationChange", {
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contentWindowId: this.contentWindowId,
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documentURI: aWebProgress.DOMWindow.document.documentURIObject.spec,
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location: spec,
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canGoBack: docShell.canGoBack,
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canGoForward: docShell.canGoForward,
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charset: charset.toString()
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});
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this._firstPaint = false;
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let self = this;
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// Keep track of hash changes
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this.hashChanged = (location == this._lastLocation);
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this._lastLocation = location;
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// When a new page is loaded fire a message for the first paint
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addEventListener("MozAfterPaint", function(aEvent) {
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removeEventListener("MozAfterPaint", arguments.callee, true);
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self._firstPaint = true;
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let scrollOffset = ContentScroll.getScrollOffset(content);
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sendAsyncMessage("Browser:FirstPaint", scrollOffset);
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}, true);
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},
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onStatusChange: function onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {
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},
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onSecurityChange: function onSecurityChange(aWebProgress, aRequest, aState) {
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if (content != aWebProgress.DOMWindow)
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return;
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let serialization = SecurityUI.getSSLStatusAsString();
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sendAsyncMessage("Content:SecurityChange", {
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contentWindowId: this.contentWindowId,
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SSLStatusAsString: serialization,
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state: aState
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});
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},
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get contentWindowId() {
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return content.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils)
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.currentInnerWindowID;
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},
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QueryInterface: function QueryInterface(aIID) {
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if (aIID.equals(Ci.nsIWebProgressListener) ||
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aIID.equals(Ci.nsISupportsWeakReference) ||
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aIID.equals(Ci.nsISupports)) {
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return this;
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}
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throw Components.results.NS_ERROR_NO_INTERFACE;
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}
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};
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WebProgressListener.init();
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let SecurityUI = {
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getSSLStatusAsString: function() {
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let status = docShell.securityUI.QueryInterface(Ci.nsISSLStatusProvider).SSLStatus;
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if (status) {
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let serhelper = Cc["@mozilla.org/network/serialization-helper;1"]
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.getService(Ci.nsISerializationHelper);
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status.QueryInterface(Ci.nsISerializable);
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return serhelper.serializeToString(status);
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}
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return null;
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}
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};
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let WebNavigation = {
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_webNavigation: docShell.QueryInterface(Ci.nsIWebNavigation),
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_timer: null,
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init: function() {
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addMessageListener("WebNavigation:GoBack", this);
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addMessageListener("WebNavigation:GoForward", this);
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addMessageListener("WebNavigation:GotoIndex", this);
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addMessageListener("WebNavigation:LoadURI", this);
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addMessageListener("WebNavigation:Reload", this);
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addMessageListener("WebNavigation:Stop", this);
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},
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receiveMessage: function(message) {
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switch (message.name) {
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case "WebNavigation:GoBack":
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this.goBack();
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break;
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case "WebNavigation:GoForward":
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this.goForward();
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break;
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case "WebNavigation:GotoIndex":
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this.gotoIndex(message);
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break;
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case "WebNavigation:LoadURI":
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this.loadURI(message);
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break;
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case "WebNavigation:Reload":
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this.reload(message);
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break;
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case "WebNavigation:Stop":
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this.stop(message);
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break;
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}
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},
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goBack: function() {
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if (this._webNavigation.canGoBack)
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this._webNavigation.goBack();
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},
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goForward: function() {
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if (this._webNavigation.canGoForward)
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this._webNavigation.goForward();
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},
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gotoIndex: function(message) {
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this._webNavigation.gotoIndex(message.index);
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},
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loadURI: function(message) {
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let flags = message.json.flags || this._webNavigation.LOAD_FLAGS_NONE;
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this._webNavigation.loadURI(message.json.uri, flags, null, null, null);
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let tabData = message.json;
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if (tabData.entries) {
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// We are going to load from history so kill the current load. We do not
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// want the load added to the history anyway. We reload after resetting history
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this._webNavigation.stop(this._webNavigation.STOP_ALL);
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this._restoreHistory(tabData, 0);
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}
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},
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reload: function(message) {
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let flags = message.json.flags || this._webNavigation.LOAD_FLAGS_NONE;
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this._webNavigation.reload(flags);
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},
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stop: function(message) {
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let flags = message.json.flags || this._webNavigation.STOP_ALL;
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this._webNavigation.stop(flags);
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},
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_restoreHistory: function _restoreHistory(aTabData, aCount) {
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// We need to wait for the sessionHistory to be initialized and there
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// is no good way to do this. We'll try a wait loop like desktop
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try {
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if (!this._webNavigation.sessionHistory)
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throw new Error();
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} catch (ex) {
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if (aCount < 10) {
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let self = this;
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this._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
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this._timer.initWithCallback(function(aTimer) {
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self._timer = null;
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self._restoreHistory(aTabData, aCount + 1);
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}, 100, Ci.nsITimer.TYPE_ONE_SHOT);
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return;
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}
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}
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let history = this._webNavigation.sessionHistory;
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if (history.count > 0)
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history.PurgeHistory(history.count);
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history.QueryInterface(Ci.nsISHistoryInternal);
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// helper hashes for ensuring unique frame IDs and unique document
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// identifiers.
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let idMap = { used: {} };
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let docIdentMap = {};
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for (let i = 0; i < aTabData.entries.length; i++) {
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if (!aTabData.entries[i].url)
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continue;
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history.addEntry(this._deserializeHistoryEntry(aTabData.entries[i], idMap, docIdentMap), true);
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}
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// We need to force set the active history item and cause it to reload since
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// we stop the load above
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let activeIndex = (aTabData.index || aTabData.entries.length) - 1;
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history.getEntryAtIndex(activeIndex, true);
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history.QueryInterface(Ci.nsISHistory).reloadCurrentEntry();
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},
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_deserializeHistoryEntry: function _deserializeHistoryEntry(aEntry, aIdMap, aDocIdentMap) {
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let shEntry = Cc["@mozilla.org/browser/session-history-entry;1"].createInstance(Ci.nsISHEntry);
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shEntry.setURI(Services.io.newURI(aEntry.url, null, null));
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shEntry.setTitle(aEntry.title || aEntry.url);
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if (aEntry.subframe)
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shEntry.setIsSubFrame(aEntry.subframe || false);
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shEntry.loadType = Ci.nsIDocShellLoadInfo.loadHistory;
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if (aEntry.contentType)
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shEntry.contentType = aEntry.contentType;
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if (aEntry.referrer)
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shEntry.referrerURI = Services.io.newURI(aEntry.referrer, null, null);
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if (aEntry.cacheKey) {
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let cacheKey = Cc["@mozilla.org/supports-PRUint32;1"].createInstance(Ci.nsISupportsPRUint32);
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cacheKey.data = aEntry.cacheKey;
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shEntry.cacheKey = cacheKey;
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}
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if (aEntry.ID) {
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// get a new unique ID for this frame (since the one from the last
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// start might already be in use)
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let id = aIdMap[aEntry.ID] || 0;
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if (!id) {
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for (id = Date.now(); id in aIdMap.used; id++);
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aIdMap[aEntry.ID] = id;
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aIdMap.used[id] = true;
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}
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shEntry.ID = id;
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}
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if (aEntry.docshellID)
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shEntry.docshellID = aEntry.docshellID;
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if (aEntry.structuredCloneState && aEntry.structuredCloneVersion) {
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shEntry.stateData =
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Cc["@mozilla.org/docshell/structured-clone-container;1"].
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createInstance(Ci.nsIStructuredCloneContainer);
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shEntry.stateData.initFromBase64(aEntry.structuredCloneState, aEntry.structuredCloneVersion);
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}
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if (aEntry.scroll) {
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let scrollPos = aEntry.scroll.split(",");
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scrollPos = [parseInt(scrollPos[0]) || 0, parseInt(scrollPos[1]) || 0];
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shEntry.setScrollPosition(scrollPos[0], scrollPos[1]);
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}
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let childDocIdents = {};
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if (aEntry.docIdentifier) {
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// If we have a serialized document identifier, try to find an SHEntry
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// which matches that doc identifier and adopt that SHEntry's
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// BFCacheEntry. If we don't find a match, insert shEntry as the match
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// for the document identifier.
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let matchingEntry = aDocIdentMap[aEntry.docIdentifier];
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if (!matchingEntry) {
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matchingEntry = {shEntry: shEntry, childDocIdents: childDocIdents};
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aDocIdentMap[aEntry.docIdentifier] = matchingEntry;
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} else {
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shEntry.adoptBFCacheEntry(matchingEntry);
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childDocIdents = matchingEntry.childDocIdents;
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}
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}
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if (aEntry.owner_b64) {
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let ownerInput = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(Ci.nsIStringInputStream);
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let binaryData = atob(aEntry.owner_b64);
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ownerInput.setData(binaryData, binaryData.length);
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let binaryStream = Cc["@mozilla.org/binaryinputstream;1"].createInstance(Ci.nsIObjectInputStream);
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binaryStream.setInputStream(ownerInput);
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try { // Catch possible deserialization exceptions
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shEntry.owner = binaryStream.readObject(true);
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} catch (ex) { dump(ex); }
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}
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if (aEntry.children && shEntry instanceof Ci.nsISHContainer) {
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for (let i = 0; i < aEntry.children.length; i++) {
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if (!aEntry.children[i].url)
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continue;
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// We're getting sessionrestore.js files with a cycle in the
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// doc-identifier graph, likely due to bug 698656. (That is, we have
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// an entry where doc identifier A is an ancestor of doc identifier B,
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// and another entry where doc identifier B is an ancestor of A.)
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//
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// If we were to respect these doc identifiers, we'd create a cycle in
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// the SHEntries themselves, which causes the docshell to loop forever
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// when it looks for the root SHEntry.
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//
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// So as a hack to fix this, we restrict the scope of a doc identifier
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// to be a node's siblings and cousins, and pass childDocIdents, not
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// aDocIdents, to _deserializeHistoryEntry. That is, we say that two
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// SHEntries with the same doc identifier have the same document iff
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// they have the same parent or their parents have the same document.
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shEntry.AddChild(this._deserializeHistoryEntry(aEntry.children[i], aIdMap, childDocIdents), i);
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}
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}
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return shEntry;
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},
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sendHistory: function sendHistory() {
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// We need to package up the session history and send it to the sessionstore
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let entries = [];
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let history = docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory;
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for (let i = 0; i < history.count; i++) {
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let entry = this._serializeHistoryEntry(history.getEntryAtIndex(i, false));
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entries.push(entry);
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}
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let index = history.index + 1;
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sendAsyncMessage("Content:SessionHistory", { entries: entries, index: index });
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},
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_serializeHistoryEntry: function _serializeHistoryEntry(aEntry) {
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let entry = { url: aEntry.URI.spec };
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if (aEntry.title && aEntry.title != entry.url)
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entry.title = aEntry.title;
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if (!(aEntry instanceof Ci.nsISHEntry))
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return entry;
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let cacheKey = aEntry.cacheKey;
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if (cacheKey && cacheKey instanceof Ci.nsISupportsPRUint32 && cacheKey.data != 0)
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entry.cacheKey = cacheKey.data;
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entry.ID = aEntry.ID;
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entry.docshellID = aEntry.docshellID;
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if (aEntry.referrerURI)
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entry.referrer = aEntry.referrerURI.spec;
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if (aEntry.contentType)
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entry.contentType = aEntry.contentType;
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let x = {}, y = {};
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aEntry.getScrollPosition(x, y);
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if (x.value != 0 || y.value != 0)
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entry.scroll = x.value + "," + y.value;
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if (aEntry.owner) {
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try {
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let binaryStream = Cc["@mozilla.org/binaryoutputstream;1"].createInstance(Ci.nsIObjectOutputStream);
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let pipe = Cc["@mozilla.org/pipe;1"].createInstance(Ci.nsIPipe);
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pipe.init(false, false, 0, 0xffffffff, null);
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binaryStream.setOutputStream(pipe.outputStream);
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binaryStream.writeCompoundObject(aEntry.owner, Ci.nsISupports, true);
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binaryStream.close();
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// Now we want to read the data from the pipe's input end and encode it.
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let scriptableStream = Cc["@mozilla.org/binaryinputstream;1"].createInstance(Ci.nsIBinaryInputStream);
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scriptableStream.setInputStream(pipe.inputStream);
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let ownerBytes = scriptableStream.readByteArray(scriptableStream.available());
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// We can stop doing base64 encoding once our serialization into JSON
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// is guaranteed to handle all chars in strings, including embedded
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// nulls.
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entry.owner_b64 = btoa(String.fromCharCode.apply(null, ownerBytes));
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} catch (e) { dump(e); }
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}
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entry.docIdentifier = aEntry.BFCacheEntry.ID;
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if (aEntry.stateData != null) {
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entry.structuredCloneState = aEntry.stateData.getDataAsBase64();
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entry.structuredCloneVersion = aEntry.stateData.formatVersion;
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}
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if (!(aEntry instanceof Ci.nsISHContainer))
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return entry;
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if (aEntry.childCount > 0) {
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entry.children = [];
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for (let i = 0; i < aEntry.childCount; i++) {
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let child = aEntry.GetChildAt(i);
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if (child)
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entry.children.push(this._serializeHistoryEntry(child));
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else // to maintain the correct frame order, insert a dummy entry
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entry.children.push({ url: "about:blank" });
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// don't try to restore framesets containing wyciwyg URLs (cf. bug 424689 and bug 450595)
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if (/^wyciwyg:\/\//.test(entry.children[i].url)) {
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delete entry.children;
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break;
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}
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}
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}
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return entry;
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}
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};
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WebNavigation.init();
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let DOMEvents = {
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init: function() {
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addEventListener("DOMContentLoaded", this, false);
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addEventListener("DOMTitleChanged", this, false);
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addEventListener("DOMLinkAdded", this, false);
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addEventListener("DOMWillOpenModalDialog", this, false);
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addEventListener("DOMModalDialogClosed", this, true);
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addEventListener("DOMWindowClose", this, false);
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addEventListener("DOMPopupBlocked", this, false);
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addEventListener("pageshow", this, false);
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addEventListener("pagehide", this, false);
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},
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handleEvent: function(aEvent) {
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let document = content.document;
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switch (aEvent.type) {
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case "DOMContentLoaded":
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if (document.documentURIObject.spec == "about:blank")
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return;
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sendAsyncMessage("DOMContentLoaded", { });
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// Send the session history now too
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WebNavigation.sendHistory();
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break;
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case "pageshow":
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case "pagehide": {
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if (aEvent.target.defaultView != content)
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break;
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let util = aEvent.target.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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let json = {
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contentWindowWidth: content.innerWidth,
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contentWindowHeight: content.innerHeight,
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windowId: util.outerWindowID,
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persisted: aEvent.persisted
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};
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// Clear onload focus to prevent the VKB to be shown unexpectingly
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// but only if the location has really changed and not only the
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// fragment identifier
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let contentWindowID = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
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if (!WebProgressListener.hashChanged && contentWindowID == util.currentInnerWindowID) {
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let focusManager = Cc["@mozilla.org/focus-manager;1"].getService(Ci.nsIFocusManager);
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focusManager.clearFocus(content);
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}
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sendAsyncMessage(aEvent.type, json);
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break;
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}
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case "DOMPopupBlocked": {
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let util = aEvent.requestingWindow.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils);
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let json = {
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windowId: util.outerWindowID,
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popupWindowURI: {
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spec: aEvent.popupWindowURI.spec,
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charset: aEvent.popupWindowURI.originCharset
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},
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popupWindowFeatures: aEvent.popupWindowFeatures,
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popupWindowName: aEvent.popupWindowName
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};
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sendAsyncMessage("DOMPopupBlocked", json);
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break;
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|
}
|
|
|
|
case "DOMTitleChanged":
|
|
sendAsyncMessage("DOMTitleChanged", { title: document.title });
|
|
break;
|
|
|
|
case "DOMLinkAdded":
|
|
let target = aEvent.originalTarget;
|
|
if (!target.href || target.disabled)
|
|
return;
|
|
|
|
let json = {
|
|
windowId: target.ownerDocument.defaultView.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID,
|
|
href: target.href,
|
|
charset: document.characterSet,
|
|
title: target.title,
|
|
rel: target.rel,
|
|
type: target.type
|
|
};
|
|
|
|
// rel=icon can also have a sizes attribute
|
|
if (target.hasAttribute("sizes"))
|
|
json.sizes = target.getAttribute("sizes");
|
|
|
|
sendAsyncMessage("DOMLinkAdded", json);
|
|
break;
|
|
|
|
case "DOMWillOpenModalDialog":
|
|
case "DOMModalDialogClosed":
|
|
case "DOMWindowClose":
|
|
let retvals = sendSyncMessage(aEvent.type, { });
|
|
for (let i in retvals) {
|
|
if (retvals[i].preventDefault) {
|
|
aEvent.preventDefault();
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
DOMEvents.init();
|
|
|
|
let ContentScroll = {
|
|
_scrollOffset: { x: 0, y: 0 },
|
|
|
|
init: function() {
|
|
addMessageListener("Content:SetCacheViewport", this);
|
|
addMessageListener("Content:SetWindowSize", this);
|
|
|
|
addEventListener("scroll", this, false);
|
|
addEventListener("pagehide", this, false);
|
|
addEventListener("MozScrolledAreaChanged", this, false);
|
|
},
|
|
|
|
getScrollOffset: function(aWindow) {
|
|
let cwu = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
|
|
let scrollX = {}, scrollY = {};
|
|
cwu.getScrollXY(false, scrollX, scrollY);
|
|
return { x: scrollX.value, y: scrollY.value };
|
|
},
|
|
|
|
getScrollOffsetForElement: function(aElement) {
|
|
if (aElement.parentNode == aElement.ownerDocument)
|
|
return this.getScrollOffset(aElement.ownerDocument.defaultView);
|
|
return { x: aElement.scrollLeft, y: aElement.scrollTop };
|
|
},
|
|
|
|
setScrollOffsetForElement: function(aElement, aLeft, aTop) {
|
|
if (aElement.parentNode == aElement.ownerDocument) {
|
|
aElement.ownerDocument.defaultView.scrollTo(aLeft, aTop);
|
|
} else {
|
|
aElement.scrollLeft = aLeft;
|
|
aElement.scrollTop = aTop;
|
|
}
|
|
},
|
|
|
|
receiveMessage: function(aMessage) {
|
|
let json = aMessage.json;
|
|
switch (aMessage.name) {
|
|
case "Content:SetCacheViewport": {
|
|
// Set resolution for root view
|
|
let rootCwu = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
|
|
if (json.id == 1) {
|
|
rootCwu.setResolution(json.scale, json.scale);
|
|
if (!WebProgressListener._firstPaint)
|
|
break;
|
|
}
|
|
|
|
let displayport = new Rect(json.x, json.y, json.w, json.h);
|
|
if (displayport.isEmpty())
|
|
break;
|
|
|
|
// Map ID to element
|
|
let element = null;
|
|
try {
|
|
element = rootCwu.findElementWithViewId(json.id);
|
|
} catch(e) {
|
|
// This could give NS_ERROR_NOT_AVAILABLE. In that case, the
|
|
// presshell is not available because the page is reloading.
|
|
}
|
|
|
|
if (!element)
|
|
break;
|
|
|
|
let binding = element.ownerDocument.getBindingParent(element);
|
|
if (binding instanceof Ci.nsIDOMHTMLInputElement && binding.mozIsTextField(false))
|
|
break;
|
|
|
|
// Set the scroll offset for this element if specified
|
|
if (json.scrollX >= 0 && json.scrollY >= 0) {
|
|
this.setScrollOffsetForElement(element, json.scrollX, json.scrollY)
|
|
if (json.id == 1)
|
|
this._scrollOffset = this.getScrollOffset(content);
|
|
}
|
|
|
|
// Set displayport. We want to set this after setting the scroll offset, because
|
|
// it is calculated based on the scroll offset.
|
|
let scrollOffset = this.getScrollOffsetForElement(element);
|
|
let x = displayport.x - scrollOffset.x;
|
|
let y = displayport.y - scrollOffset.y;
|
|
|
|
if (json.id == 1) {
|
|
x = Math.round(x * json.scale) / json.scale;
|
|
y = Math.round(y * json.scale) / json.scale;
|
|
}
|
|
|
|
let win = element.ownerDocument.defaultView;
|
|
let winCwu = win.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
|
|
winCwu.setDisplayPortForElement(x, y, displayport.width, displayport.height, element);
|
|
break;
|
|
}
|
|
|
|
case "Content:SetWindowSize": {
|
|
let cwu = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
|
|
cwu.setCSSViewport(json.width, json.height);
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
handleEvent: function(aEvent) {
|
|
switch (aEvent.type) {
|
|
case "pagehide":
|
|
this._scrollOffset = { x: 0, y: 0 };
|
|
break;
|
|
|
|
case "scroll": {
|
|
let doc = aEvent.target;
|
|
if (doc != content.document)
|
|
break;
|
|
|
|
this.sendScroll();
|
|
break;
|
|
}
|
|
|
|
case "MozScrolledAreaChanged": {
|
|
let doc = aEvent.originalTarget;
|
|
if (content != doc.defaultView) // We are only interested in root scroll pane changes
|
|
return;
|
|
|
|
sendAsyncMessage("MozScrolledAreaChanged", {
|
|
width: aEvent.width,
|
|
height: aEvent.height,
|
|
left: aEvent.x + content.scrollX
|
|
});
|
|
|
|
// Send event only after painting to make sure content views in the parent process have
|
|
// been updated.
|
|
addEventListener("MozAfterPaint", function afterPaint() {
|
|
removeEventListener("MozAfterPaint", afterPaint, false);
|
|
sendAsyncMessage("Content:UpdateDisplayPort");
|
|
}, false);
|
|
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
sendScroll: function sendScroll() {
|
|
let scrollOffset = this.getScrollOffset(content);
|
|
if (this._scrollOffset.x == scrollOffset.x && this._scrollOffset.y == scrollOffset.y)
|
|
return;
|
|
|
|
this._scrollOffset = scrollOffset;
|
|
sendAsyncMessage("scroll", scrollOffset);
|
|
}
|
|
};
|
|
|
|
ContentScroll.init();
|
|
|
|
let ContentActive = {
|
|
init: function() {
|
|
addMessageListener("Content:Activate", this);
|
|
addMessageListener("Content:Deactivate", this);
|
|
},
|
|
|
|
receiveMessage: function(aMessage) {
|
|
let json = aMessage.json;
|
|
switch (aMessage.name) {
|
|
case "Content:Deactivate":
|
|
docShell.isActive = false;
|
|
let cwu = content.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
|
|
if (json.keepviewport)
|
|
break;
|
|
cwu.setDisplayPortForElement(0, 0, 0, 0, content.document.documentElement);
|
|
break;
|
|
|
|
case "Content:Activate":
|
|
docShell.isActive = true;
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
ContentActive.init();
|
|
|
|
/**
|
|
* Helper class for IndexedDB, child part. Listens using
|
|
* the observer service for events regarding IndexedDB
|
|
* prompts, and sends messages to the parent to actually
|
|
* show the prompts.
|
|
*/
|
|
let IndexedDB = {
|
|
_permissionsPrompt: "indexedDB-permissions-prompt",
|
|
_permissionsResponse: "indexedDB-permissions-response",
|
|
|
|
_quotaPrompt: "indexedDB-quota-prompt",
|
|
_quotaResponse: "indexedDB-quota-response",
|
|
_quotaCancel: "indexedDB-quota-cancel",
|
|
|
|
waitingObservers: [],
|
|
|
|
init: function IndexedDBPromptHelper_init() {
|
|
let os = Services.obs;
|
|
os.addObserver(this, this._permissionsPrompt, false);
|
|
os.addObserver(this, this._quotaPrompt, false);
|
|
os.addObserver(this, this._quotaCancel, false);
|
|
addMessageListener("IndexedDB:Response", this);
|
|
},
|
|
|
|
observe: function IndexedDBPromptHelper_observe(aSubject, aTopic, aData) {
|
|
if (aTopic != this._permissionsPrompt && aTopic != this._quotaPrompt && aTopic != this._quotaCancel) {
|
|
throw new Error("Unexpected topic!");
|
|
}
|
|
|
|
let requestor = aSubject.QueryInterface(Ci.nsIInterfaceRequestor);
|
|
let observer = requestor.getInterface(Ci.nsIObserver);
|
|
|
|
let contentWindow = requestor.getInterface(Ci.nsIDOMWindow);
|
|
let contentDocument = contentWindow.document;
|
|
|
|
if (aTopic == this._quotaCancel) {
|
|
observer.observe(null, this._quotaResponse, Ci.nsIPermissionManager.UNKNOWN_ACTION);
|
|
return;
|
|
}
|
|
|
|
// Remote to parent
|
|
sendAsyncMessage("IndexedDB:Prompt", {
|
|
topic: aTopic,
|
|
host: contentDocument.documentURIObject.asciiHost,
|
|
location: contentDocument.location.toString(),
|
|
data: aData,
|
|
observerId: this.addWaitingObserver(observer)
|
|
});
|
|
},
|
|
|
|
receiveMessage: function(aMessage) {
|
|
let payload = aMessage.json;
|
|
switch (aMessage.name) {
|
|
case "IndexedDB:Response":
|
|
let observer = this.getAndRemoveWaitingObserver(payload.observerId);
|
|
observer.observe(null, payload.responseTopic, payload.permission);
|
|
}
|
|
},
|
|
|
|
addWaitingObserver: function(aObserver) {
|
|
let observerId = 0;
|
|
while (observerId in this.waitingObservers)
|
|
observerId++;
|
|
this.waitingObservers[observerId] = aObserver;
|
|
return observerId;
|
|
},
|
|
|
|
getAndRemoveWaitingObserver: function(aObserverId) {
|
|
let observer = this.waitingObservers[aObserverId];
|
|
delete this.waitingObservers[aObserverId];
|
|
return observer;
|
|
}
|
|
};
|
|
|
|
IndexedDB.init();
|
|
|