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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// Based on:
// https://bugzilla.mozilla.org/show_bug.cgi?id=549539
// https://bug549539.bugzilla.mozilla.org/attachment.cgi?id=429661
// https://developer.mozilla.org/en/XPCOM/XPCOM_changes_in_Gecko_1.9.3
// http://mxr.mozilla.org/mozilla-central/source/toolkit/components/console/hudservice/HUDService.jsm#3240
// https://developer.mozilla.org/en/how_to_build_an_xpcom_component_in_javascript
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
const Cc = Components.classes;
const Ci = Components.interfaces;
const CHILD_SCRIPT = "chrome://specialpowers/content/specialpowers.js"
const CHILD_SCRIPT_API = "chrome://specialpowers/content/specialpowersAPI.js"
const CHILD_LOGGER_SCRIPT = "chrome://specialpowers/content/MozillaLogger.js"
// Glue to add in the observer API to this object. This allows us to share code with chrome tests
var loader = Components.classes["@mozilla.org/moz/jssubscript-loader;1"]
.getService(Components.interfaces.mozIJSSubScriptLoader);
loader.loadSubScript("chrome://specialpowers/content/SpecialPowersObserverAPI.js");
/* XPCOM gunk */
this.SpecialPowersObserver = function SpecialPowersObserver() {
this._isFrameScriptLoaded = false;
this._mmIsGlobal = true;
this._messageManager = Cc["@mozilla.org/globalmessagemanager;1"].
getService(Ci.nsIMessageBroadcaster);
}
SpecialPowersObserver.prototype = new SpecialPowersObserverAPI();
SpecialPowersObserver.prototype.classDescription = "Special powers Observer for use in testing.";
SpecialPowersObserver.prototype.classID = Components.ID("{59a52458-13e0-4d93-9d85-a637344f29a1}");
SpecialPowersObserver.prototype.contractID = "@mozilla.org/special-powers-observer;1";
SpecialPowersObserver.prototype.QueryInterface = XPCOMUtils.generateQI([Components.interfaces.nsIObserver]);
SpecialPowersObserver.prototype._xpcom_categories = [{category: "profile-after-change", service: true }];
SpecialPowersObserver.prototype.observe = function(aSubject, aTopic, aData)
{
switch (aTopic) {
case "profile-after-change":
this.init();
break;
case "chrome-document-global-created":
if (!this._isFrameScriptLoaded) {
// Register for any messages our API needs us to handle
this._messageManager.addMessageListener("SPPrefService", this);
this._messageManager.addMessageListener("SPProcessCrashService", this);
this._messageManager.addMessageListener("SPPingService", this);
this._messageManager.addMessageListener("SpecialPowers.Quit", this);
this._messageManager.addMessageListener("SpecialPowers.Focus", this);
this._messageManager.addMessageListener("SPPermissionManager", this);
this._messageManager.addMessageListener("SPWebAppService", this);
this._messageManager.addMessageListener("SPObserverService", this);
this._messageManager.addMessageListener("SPLoadChromeScript", this);
this._messageManager.addMessageListener("SPChromeScriptMessage", this);
this._messageManager.loadFrameScript(CHILD_LOGGER_SCRIPT, true);
this._messageManager.loadFrameScript(CHILD_SCRIPT_API, true);
this._messageManager.loadFrameScript(CHILD_SCRIPT, true);
this._isFrameScriptLoaded = true;
}
break;
case "http-on-modify-request":
if (aSubject instanceof Ci.nsIChannel) {
let uri = aSubject.URI.spec;
this._sendAsyncMessage("specialpowers-http-notify-request", { uri: uri });
}
break;
case "xpcom-shutdown":
this.uninit();
break;
default:
this._observe(aSubject, aTopic, aData);
break;
}
};
SpecialPowersObserver.prototype._sendAsyncMessage = function(msgname, msg)
{
if (this._mmIsGlobal) {
this._messageManager.broadcastAsyncMessage(msgname, msg);
}
else {
this._messageManager.sendAsyncMessage(msgname, msg);
}
};
SpecialPowersObserver.prototype._receiveMessage = function(aMessage) {
return this._receiveMessageAPI(aMessage);
};
SpecialPowersObserver.prototype.init = function(messageManager)
{
var obs = Services.obs;
obs.addObserver(this, "xpcom-shutdown", false);
obs.addObserver(this, "chrome-document-global-created", false);
obs.addObserver(this, "http-on-modify-request", false);
if (messageManager) {
this._messageManager = messageManager;
this._mmIsGlobal = false;
}
};
SpecialPowersObserver.prototype.uninit = function()
{
var obs = Services.obs;
obs.removeObserver(this, "chrome-document-global-created");
obs.removeObserver(this, "http-on-modify-request");
this._removeProcessCrashObservers();
};
SpecialPowersObserver.prototype._addProcessCrashObservers = function() {
if (this._processCrashObserversRegistered) {
return;
}
var obs = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
obs.addObserver(this, "plugin-crashed", false);
obs.addObserver(this, "ipc:content-shutdown", false);
this._processCrashObserversRegistered = true;
};
SpecialPowersObserver.prototype._removeProcessCrashObservers = function() {
if (!this._processCrashObserversRegistered) {
return;
}
var obs = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
obs.removeObserver(this, "plugin-crashed");
obs.removeObserver(this, "ipc:content-shutdown");
this._processCrashObserversRegistered = false;
};
/**
* messageManager callback function
* This will get requests from our API in the window and process them in chrome for it
**/
SpecialPowersObserver.prototype.receiveMessage = function(aMessage) {
switch(aMessage.name) {
case "SPPingService":
if (aMessage.json.op == "ping") {
aMessage.target
.QueryInterface(Ci.nsIFrameLoaderOwner)
.frameLoader
.messageManager
.sendAsyncMessage("SPPingService", { op: "pong" });
}
break;
case "SpecialPowers.Quit":
let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
appStartup.quit(Ci.nsIAppStartup.eForceQuit);
break;
case "SpecialPowers.Focus":
aMessage.target.focus();
break;
default:
return this._receiveMessage(aMessage);
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SpecialPowersObserver]);
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