Bug 886546 - implement metro debug actors for developer tools.r=sfoster

browser/metro/base/content/browser-ui.js

@@ -4,6 +4,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 Cu.import("resource://gre/modules/PageThumbs.jsm");
+Cu.import("resource://gre/modules/devtools/dbg-server.jsm")
 
 /**
  * Constants
@@ -1341,6 +1342,13 @@ var StartUI = {
       if (section.init)
         section.init();
     });
+
+    if (!DebuggerServer.initialized) {
+      DebuggerServer.init();
+      DebuggerServer.addBrowserActors();
+      DebuggerServer.addActors('chrome://browser/content/dbg-metro-actors.js');
+    }
+    DebuggerServer.openListener(6000);
   },
 
   uninit: function() {

browser/metro/base/content/dbg-metro-actors.js

@@ -0,0 +1,66 @@
+/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+"use strict";
+const error = Components.utils.reportError;
+
+/* Metrofx specific actors, modelled from the android fennec actors */
+
+/** aConnection DebuggerServerConnection, the conection to the client.
+ */
+function createRootActor(aConnection) {
+  let parameters = {
+    tabList: new MetroTabList(aConnection),
+    globalActorFactories: DebuggerServer.globalActorFactories,
+    onShutdown: sendShutdownEvent
+  };
+  return new RootActor(aConnection, parameters);
+}
+
+/** aConnection DebuggerServerConnection, the conection to the client.
+ */
+function MetroTabList(aConnection) {
+  BrowserTabList.call(this, aConnection);
+}
+
+MetroTabList.prototype = Object.create(BrowserTabList.prototype);
+MetroTabList.prototype.constructor = MetroTabList;
+/**
+ * We want to avoid mysterious behavior if tabs are closed or opened mid-iteration.
+ * We want at the end, a list of the actors that were live when we began the iteration.
+ * So, we update the map first, iterate over it again to yield the actors.
+ */
+MetroTabList.prototype.iterator = function() {
+
+  let initialMapSize = this._actorByBrowser.size;
+  let foundCount = 0;
+  for (let win of allAppShellDOMWindows("navigator:browser")) {
+    let selectedTab = win.Browser.selectedBrowser;
+
+    for (let browser of win.Browser.browsers) {
+      let actor = this._actorByBrowser.get(browser);
+      if (actor) {
+        foundCount++;
+      } else {
+        actor = new BrowserTabActor(this._connection, browser);
+        this._actorByBrowser.set(browser, actor);
+      }
+
+      // Set the 'selected' properties on all actors correctly.
+      actor.selected = (browser === selectedTab);
+    }
+  }
+
+  if (this._testing && initialMapSize !== foundCount) {
+    throw error("_actorByBrowser map contained actors for dead tabs");
+  }
+
+  this._mustNotify = true;
+  this._checkListening();
+
+  for (let [browser, actor] of this._actorByBrowser) {
+    yield actor;
+  }
+};

browser/metro/base/jar.mn

@@ -88,6 +88,7 @@ chrome.jar:
   content/TopSites.js                          (content/TopSites.js)
   content/console.js                           (content/console.js)
   content/AnimatedZoom.js                      (content/AnimatedZoom.js)
+  content/dbg-metro-actors.js                  (content/dbg-metro-actors.js)
 #ifdef MOZ_SERVICES_SYNC
 * content/sync.js                              (content/sync.js)
   content/RemoteTabs.js                        (content/RemoteTabs.js)