The Tor Browser: testing/mochitest/tests/SimpleTest/ChromePowers.js@b8a032363ba2 (annotated)

testing/mochitest/tests/SimpleTest/ChromePowers.js@b8a032363ba2 (annotated)

testing/mochitest/tests/SimpleTest/ChromePowers.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* 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/. */
 function ChromePowers(window) {
   this.window = Components.utils.getWeakReference(window);
   // In the case of browser-chrome tests, we are running as a [ChromeWindow]
   // and we have no window.QueryInterface available, content.window is what we need
   if (typeof(window) == "ChromeWindow" && typeof(content.window) == "Window") {
     this.DOMWindowUtils = bindDOMWindowUtils(content.window);
     this.window = Components.utils.getWeakReference(content.window);
   } else {
     this.DOMWindowUtils = bindDOMWindowUtils(window);
   }
   this.spObserver = new SpecialPowersObserverAPI();
 }
 ChromePowers.prototype = new SpecialPowersAPI();
 ChromePowers.prototype.toString = function() { return "[ChromePowers]"; };
 ChromePowers.prototype.sanityCheck = function() { return "foo"; };
 // This gets filled in in the constructor.
 ChromePowers.prototype.DOMWindowUtils = undefined;
 ChromePowers.prototype._sendSyncMessage = function(type, msg) {
   var aMessage = {'name':type, 'json': msg};
   return [this._receiveMessage(aMessage)];
 };
 ChromePowers.prototype._sendAsyncMessage = function(type, msg) {
   var aMessage = {'name':type, 'json': msg};
   this._receiveMessage(aMessage);
 };
 ChromePowers.prototype.registerProcessCrashObservers = function() {
   this._sendSyncMessage("SPProcessCrashService", { op: "register-observer" });
 };
 ChromePowers.prototype.unregisterProcessCrashObservers = function() {
   this._sendSyncMessage("SPProcessCrashService", { op: "unregister-observer" });
 };
 ChromePowers.prototype._receiveMessage = function(aMessage) {
   switch (aMessage.name) {
     case "SpecialPowers.Quit":
       let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
       appStartup.quit(Ci.nsIAppStartup.eForceQuit);
       break;
     case "SPProcessCrashService":
       if (aMessage.json.op == "register-observer" || aMessage.json.op == "unregister-observer") {
         // Hack out register/unregister specifically for browser-chrome leaks
         break;
       } else if (aMessage.type == "crash-observed") {
         for (let e of msg.dumpIDs) {
           this._encounteredCrashDumpFiles.push(e.id + "." + e.extension);
         }
       }
     default:
       // All calls go here, because we need to handle SPProcessCrashService calls as well
       return this.spObserver._receiveMessageAPI(aMessage);
   }
   return undefined;		// Avoid warning.
 };
 ChromePowers.prototype.quit = function() {
   // We come in here as SpecialPowers.quit, but SpecialPowers is really ChromePowers.
   // For some reason this.<func> resolves to TestRunner, so using SpecialPowers
   // allows us to use the ChromePowers object which we defined below.
   SpecialPowers._sendSyncMessage("SpecialPowers.Quit", {});
 };
 ChromePowers.prototype.focus = function(aWindow) {
   // We come in here as SpecialPowers.focus, but SpecialPowers is really ChromePowers.
   // For some reason this.<func> resolves to TestRunner, so using SpecialPowers
   // allows us to use the ChromePowers object which we defined below.
   if (aWindow)
     aWindow.focus();
 };
 ChromePowers.prototype.executeAfterFlushingMessageQueue = function(aCallback) {
   aCallback();
 };
 // Expose everything but internal APIs (starting with underscores) to
 // web content.  We cannot use Object.keys to view SpecialPowers.prototype since
 // we are using the functions from SpecialPowersAPI.prototype
 ChromePowers.prototype.__exposedProps__ = {};
 for (var i in ChromePowers.prototype) {
   if (i.charAt(0) != "_")
     ChromePowers.prototype.__exposedProps__[i] = "r";
 }
 if ((window.parent !== null) &&
     (window.parent !== undefined) &&
     (window.parent.wrappedJSObject.SpecialPowers) &&
     !(window.wrappedJSObject.SpecialPowers)) {
   window.wrappedJSObject.SpecialPowers = window.parent.SpecialPowers;
 } else {
   window.wrappedJSObject.SpecialPowers = new ChromePowers(window);
 }