Bug 1059308 - Make frame selection button to work in browser toolbox. r=jryans,past

b2g/chrome/content/devtools/debugger.js

@@ -178,6 +178,11 @@ let RemoteDebugger = {
     let restrictPrivileges = Services.prefs.getBoolPref("devtools.debugger.forbid-certified-apps");
     DebuggerServer.addBrowserActors("navigator:browser", restrictPrivileges);
 
+    // Allow debugging of chrome for any process
+    if (!restrictPrivileges) {
+      DebuggerServer.allowChromeProcess = true;
+    }
+
     /**
      * Construct a root actor appropriate for use in a server running in B2G.
      * The returned root actor respects the factories registered with

browser/devtools/devtools-clhandler.js

@@ -110,6 +110,7 @@ devtoolsCommandlineHandler.prototype = {
       let debuggerServer = serverLoader.DebuggerServer;
       debuggerServer.init();
       debuggerServer.addBrowserActors();
+      debuggerServer.allowChromeProcess = true;
 
       let listener = debuggerServer.createListener();
       listener.portOrPath = portOrPath;

browser/devtools/framework/ToolboxProcess.jsm

@@ -116,29 +116,31 @@ BrowserToolboxProcess.prototype = {
    * Initializes the debugger server.
    */
   _initServer: function() {
+    if (this.debuggerServer) {
+      dumpn("The chrome toolbox server is already running.");
+      return;
+    }
+
     dumpn("Initializing the chrome toolbox server.");
 
-    if (!this.loader) {
-      // Create a separate loader instance, so that we can be sure to receive a
-      // separate instance of the DebuggingServer from the rest of the devtools.
-      // This allows us to safely use the tools against even the actors and
-      // DebuggingServer itself, especially since we can mark this loader as
-      // invisible to the debugger (unlike the usual loader settings).
-      this.loader = new DevToolsLoader();
-      this.loader.invisibleToDebugger = true;
-      this.loader.main("devtools/server/main");
-      this.debuggerServer = this.loader.DebuggerServer;
-      dumpn("Created a separate loader instance for the DebuggerServer.");
+    // Create a separate loader instance, so that we can be sure to receive a
+    // separate instance of the DebuggingServer from the rest of the devtools.
+    // This allows us to safely use the tools against even the actors and
+    // DebuggingServer itself, especially since we can mark this loader as
+    // invisible to the debugger (unlike the usual loader settings).
+    this.loader = new DevToolsLoader();
+    this.loader.invisibleToDebugger = true;
+    this.loader.main("devtools/server/main");
+    this.debuggerServer = this.loader.DebuggerServer;
+    dumpn("Created a separate loader instance for the DebuggerServer.");
 
-      // Forward interesting events.
-      this.debuggerServer.on("connectionchange", this.emit.bind(this));
-    }
+    // Forward interesting events.
+    this.debuggerServer.on("connectionchange", this.emit.bind(this));
 
-    if (!this.debuggerServer.initialized) {
-      this.debuggerServer.init();
-      this.debuggerServer.addBrowserActors();
-      dumpn("initialized and added the browser actors for the DebuggerServer.");
-    }
+    this.debuggerServer.init();
+    this.debuggerServer.addBrowserActors();
+    this.debuggerServer.allowChromeProcess = true;
+    dumpn("initialized and added the browser actors for the DebuggerServer.");
 
     let chromeDebuggingPort =
       Services.prefs.getIntPref("devtools.debugger.chrome-debugging-port");

browser/devtools/framework/connect/connect.js

@@ -129,11 +129,19 @@ let onConnectionReady = Task.async(function*(aType, aTraits) {
   let gParent = document.getElementById("globalActors");
 
   // Build the Remote Process button
-  if (Object.keys(globals).length > 1) {
+  // If Fx<37, tab actors were used to be exposed on RootActor
+  // but in Fx>=37, chrome is debuggable via attachProcess() and ChromeActor
+  if (globals.consoleActor || gClient.mainRoot.traits.allowChromeProcess) {
     let a = document.createElement("a");
     a.onclick = function() {
-      openToolbox(globals, true);
-
+      if (gClient.mainRoot.traits.allowChromeProcess) {
+        gClient.attachProcess()
+               .then(aResponse => {
+                 openToolbox(aResponse.form, true);
+               });
+      } else if (globals.consoleActor) {
+        openToolbox(globals, true, "webconsole", false);
+      }
     }
     a.title = a.textContent = window.l10n.GetStringFromName("mainProcess");
     a.className = "remote-process";

browser/devtools/framework/gDevTools.jsm

@@ -697,6 +697,7 @@ let gDevToolsBrowser = {
       DebuggerServer.init();
       DebuggerServer.addBrowserActors();
     }
+    DebuggerServer.allowChromeProcess = true;
 
     let transport = DebuggerServer.connectPipe();
     let client = new DebuggerClient(transport);

browser/devtools/framework/toolbox-process-window.js

@@ -41,7 +41,9 @@ let connect = Task.async(function*() {
         openToolbox({ form: addonActor, chrome: true, isTabActor: false });
       });
     } else {
-      gClient.listTabs(openToolbox);
+      gClient.attachProcess().then(aResponse => {
+        openToolbox({ form: aResponse.form, chrome: true });
+      });
     }
   });
 });
@@ -52,6 +54,7 @@ function setPrefDefaults() {
   Services.prefs.setBoolPref("devtools.profiler.ui.show-platform-data", true);
   Services.prefs.setBoolPref("browser.devedition.theme.showCustomizeButton", false);
   Services.prefs.setBoolPref("devtools.inspector.showAllAnonymousContent", true);
+  Services.prefs.setBoolPref("browser.dom.window.dump.enabled", true);
 }
 
 window.addEventListener("load", function() {

browser/devtools/scratchpad/scratchpad.js

@@ -2152,16 +2152,17 @@ ScratchpadWindow.prototype = Heritage.extend(ScratchpadTab.prototype, {
       DebuggerServer.init();
       DebuggerServer.addBrowserActors();
     }
+    DebuggerServer.allowChromeProcess = true;
 
     let client = new DebuggerClient(DebuggerServer.connectPipe());
     client.connect(() => {
-      client.listTabs(aResponse => {
+      client.attachProcess().then(aResponse => {
         if (aResponse.error) {
           reportError("listTabs", aResponse);
           deferred.reject(aResponse);
         }
         else {
-          deferred.resolve({ form: aResponse, client: client });
+          deferred.resolve({ form: aResponse.form, client: client });
         }
       });
     });

browser/devtools/webconsole/hudservice.js

@@ -187,22 +187,16 @@ HUD_SERVICE.prototype =
         DebuggerServer.init();
         DebuggerServer.addBrowserActors();
       }
+      DebuggerServer.allowChromeProcess = true;
 
       let client = new DebuggerClient(DebuggerServer.connectPipe());
-      client.connect(() =>
-        client.listTabs((aResponse) => {
-          // Add Global Process debugging...
-          let globals = Cu.cloneInto(aResponse, {});
-          delete globals.tabs;
-          delete globals.selected;
-          // ...only if there are appropriate actors (a 'from' property will
-          // always be there).
-          if (Object.keys(globals).length > 1) {
-            deferred.resolve({ form: globals, client: client, chrome: true });
-          } else {
-            deferred.reject("Global console not found!");
-          }
-        }));
+      client.connect(() => {
+        client.attachProcess().then(aResponse => {
+          // Set chrome:false in order to attach to the target
+          // (i.e. send an `attach` request to the chrome actor)
+          deferred.resolve({ form: aResponse.form, client: client, chrome: false });
+        }, deferred.reject);
+      });
 
       return deferred.promise;
     }
@@ -210,13 +204,7 @@ HUD_SERVICE.prototype =
     let target;
     function getTarget(aConnection)
     {
-      let options = {
-        form: aConnection.form,
-        client: aConnection.client,
-        chrome: true,
-      };
-
-      return devtools.TargetFactory.forRemoteTab(options);
+      return devtools.TargetFactory.forRemoteTab(aConnection);
     }
 
     function openWindow(aTarget)
@@ -241,12 +229,12 @@ HUD_SERVICE.prototype =
     }
 
     connect().then(getTarget).then(openWindow).then((aWindow) => {
-      this.openBrowserConsole(target, aWindow, aWindow)
+      return this.openBrowserConsole(target, aWindow, aWindow)
         .then((aBrowserConsole) => {
           this._browserConsoleDefer.resolve(aBrowserConsole);
           this._browserConsoleDefer = null;
         })
-    }, console.error);
+    }, console.error.bind(console));
 
     return this._browserConsoleDefer.promise;
   },
@@ -640,10 +628,13 @@ WebConsole.prototype = {
 
     this._destroyer = promise.defer();
 
-    let popupset = this.mainPopupSet;
-    let panels = popupset.querySelectorAll("panel[hudId=" + this.hudId + "]");
-    for (let panel of panels) {
-      panel.hidePopup();
+    // The document may already be removed
+    if (this.chromeUtilsWindow && this.mainPopupSet) {
+      let popupset = this.mainPopupSet;
+      let panels = popupset.querySelectorAll("panel[hudId=" + this.hudId + "]");
+      for (let panel of panels) {
+        panel.hidePopup();
+      }
     }
 
     let onDestroy = function WC_onDestroyUI() {

browser/devtools/webconsole/webconsole.js

@@ -440,7 +440,11 @@ WebConsoleFrame.prototype = {
    * @type boolean
    */
   get persistLog() {
-    return Services.prefs.getBoolPref(PREF_PERSISTLOG);
+    // For the browser console, we receive tab navigation
+    // when the original top level window we attached to is closed,
+    // but we don't want to reset console history and just switch to
+    // the next available window.
+    return this.owner._browserConsole || Services.prefs.getBoolPref(PREF_PERSISTLOG);
   },
 
   /**
@@ -3426,7 +3430,7 @@ JSTerm.prototype = {
 
     let selectedNodeActor = null;
     let inspectorSelection = this.hud.owner.getInspectorSelection();
-    if (inspectorSelection) {
+    if (inspectorSelection && inspectorSelection.nodeFront) {
       selectedNodeActor = inspectorSelection.nodeFront.actorID;
     }
 

browser/devtools/webide/content/webide.js

@@ -939,9 +939,9 @@ let UI = {
       this.toolboxPromise = null;
       return toolboxPromise.then(toolbox => {
         return toolbox.destroy();
-      }).catch(console.error)
+      }).then(null, console.error)
         .then(() => this._closeToolboxUI())
-        .catch(console.error);
+        .then(null, console.error);
     }
     return promise.resolve();
   },

browser/devtools/webide/modules/app-manager.js

@@ -217,11 +217,25 @@ let AppManager = exports.AppManager = {
 
   getTarget: function() {
     if (this.selectedProject.type == "mainProcess") {
-      return devtools.TargetFactory.forRemoteTab({
-        form: this._listTabsResponse,
-        client: this.connection.client,
-        chrome: true
-      });
+      // Fx >=37 exposes a ChromeActor to debug the main process
+      if (this.connection.client.mainRoot.traits.allowChromeProcess) {
+        return this.connection.client.attachProcess()
+                   .then(aResponse => {
+                     return devtools.TargetFactory.forRemoteTab({
+                       form: aResponse.form,
+                       client: this.connection.client,
+                       chrome: true
+                     });
+                   });
+      } else {
+        // Fx <37 exposes tab actors on the root actor
+        return devtools.TargetFactory.forRemoteTab({
+          form: this._listTabsResponse,
+          client: this.connection.client,
+          chrome: true,
+          isTabActor: false
+        });
+      }
     }
 
     if (this.selectedProject.type == "tab") {
@@ -414,8 +428,12 @@ let AppManager = exports.AppManager = {
   },
 
   isMainProcessDebuggable: function() {
-    return this._listTabsResponse &&
-           this._listTabsResponse.consoleActor;
+    // Fx <37 exposes chrome tab actors on RootActor
+    // Fx >=37 exposes a dedicated actor via attachProcess request
+    return this.connection.client &&
+           this.connection.client.mainRoot.traits.allowChromeProcess ||
+           (this._listTabsResponse &&
+            this._listTabsResponse.consoleActor);
   },
 
   get deviceFront() {

browser/devtools/webide/modules/runtimes.js

@@ -575,6 +575,7 @@ let gLocalRuntime = {
       DebuggerServer.init();
       DebuggerServer.addBrowserActors();
     }
+    DebuggerServer.allowChromeProcess = true;
     connection.host = null; // Force Pipe transport
     connection.port = null;
     connection.connect();

mobile/android/chrome/content/browser.js

@@ -7416,6 +7416,7 @@ var RemoteDebugger = {
         DebuggerServer.init();
         DebuggerServer.addBrowserActors();
         DebuggerServer.registerModule("resource://gre/modules/dbg-browser-actors.js");
+        DebuggerServer.allowChromeProcess = true;
       }
 
       let pathOrPort = this._getPath();

toolkit/devtools/client/dbg-client.jsm

@@ -624,14 +624,17 @@ DebuggerClient.prototype = {
   /**
    * Attach to a process in order to get the form of a ChildProcessActor.
    *
-   * @param string aId
+   * @param number aId
    *        The ID for the process to attach (returned by `listProcesses`).
+   *        Connected to the main process if omitted, or is 0.
    */
   attachProcess: function (aId) {
     let packet = {
-      to: 'root',
-      type: 'attachProcess',
-      id: aId
+      to: "root",
+      type: "attachProcess"
+    }
+    if (typeof(aId) == "number") {
+      packet.id = aId;
     }
     return this.request(packet);
   },

toolkit/devtools/server/actors/chrome.js

@@ -0,0 +1,185 @@
+/* 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 { Ci } = require("chrome");
+const Services = require("Services");
+const { DebuggerServer } = require("../main");
+const { getChildDocShells, TabActor } = require("./webbrowser");
+const makeDebugger = require("./utils/make-debugger");
+
+/**
+ * Creates a TabActor for debugging all the chrome content in the
+ * current process. Most of the implementation is inherited from TabActor.
+ * ChromeActor is a child of RootActor, it can be instanciated via
+ * RootActor.attachProcess request.
+ * ChromeActor exposes all tab actors via its form() request, like TabActor.
+ *
+ * History lecture:
+ * All tab actors used to also be registered as global actors,
+ * so that the root actor was also exposing tab actors for the main process.
+ * Tab actors ended up having RootActor as parent actor,
+ * but more and more features of the tab actors were relying on TabActor.
+ * So we are now exposing a process actor that offers the same API as TabActor
+ * by inheriting its functionality.
+ * Global actors are now only the actors that are meant to be global,
+ * and are no longer related to any specific scope/document.
+ *
+ * @param aConnection DebuggerServerConnection
+ *        The connection to the client.
+ */
+function ChromeActor(aConnection) {
+  TabActor.call(this, aConnection);
+
+  // This creates a Debugger instance for chrome debugging all globals.
+  this.makeDebugger = makeDebugger.bind(null, {
+    findDebuggees: dbg => dbg.findAllGlobals(),
+    shouldAddNewGlobalAsDebuggee: () => true
+  });
+
+  // Ensure catching the creation of any new content docshell
+  this.listenForNewDocShells = true;
+
+  // Defines the default docshell selected for the tab actor
+  let window = Services.wm.getMostRecentWindow(DebuggerServer.chromeWindowType);
+
+  // Default to any available top level window if there is no expected window
+  // (for example when we open firefox with -webide argument)
+  if (!window) {
+    window = Services.wm.getMostRecentWindow(null);
+  }
+  // On xpcshell, there is no window/docshell
+  let docShell = window ? window.QueryInterface(Ci.nsIInterfaceRequestor)
+                                .getInterface(Ci.nsIDocShell)
+                        : null;
+  Object.defineProperty(this, "docShell", {
+    value: docShell,
+    configurable: true
+  });
+}
+exports.ChromeActor = ChromeActor;
+
+ChromeActor.prototype = Object.create(TabActor.prototype);
+
+ChromeActor.prototype.constructor = ChromeActor;
+
+ChromeActor.prototype.isRootActor = true;
+
+/**
+ * Getter for the list of all docshells in this tabActor
+ * @return {Array}
+ */
+Object.defineProperty(ChromeActor.prototype, "docShells", {
+  get: function () {
+    // Iterate over all top-level windows and all their docshells.
+    let docShells = [];
+    let e = Services.ww.getWindowEnumerator();
+    while (e.hasMoreElements()) {
+      let window = e.getNext();
+      let docShell = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                           .getInterface(Ci.nsIWebNavigation)
+                           .QueryInterface(Ci.nsIDocShell);
+      docShells = docShells.concat(getChildDocShells(docShell));
+    }
+
+    return docShells;
+  }
+});
+
+ChromeActor.prototype.observe = function(aSubject, aTopic, aData) {
+  TabActor.prototype.observe.call(this, aSubject, aTopic, aData);
+  if (!this.attached) {
+    return;
+  }
+  if (aTopic == "chrome-webnavigation-create") {
+    aSubject.QueryInterface(Ci.nsIDocShell);
+    this._onDocShellCreated(aSubject);
+  } else if (aTopic == "chrome-webnavigation-destroy") {
+    this._onDocShellDestroy(aSubject);
+  }
+}
+
+ChromeActor.prototype._attach = function() {
+  if (this.attached) {
+    return false;
+  }
+
+  TabActor.prototype._attach.call(this);
+
+  // Listen for any new/destroyed chrome docshell
+  Services.obs.addObserver(this, "chrome-webnavigation-create", false);
+  Services.obs.addObserver(this, "chrome-webnavigation-destroy", false);
+
+  // Iterate over all top-level windows.
+  let docShells = [];
+  let e = Services.ww.getWindowEnumerator();
+  while (e.hasMoreElements()) {
+    let window = e.getNext();
+    let docShell = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIWebNavigation)
+                         .QueryInterface(Ci.nsIDocShell);
+    if (docShell == this.docShell) {
+      continue;
+    }
+    this._progressListener.watch(docShell);
+  }
+};
+
+ChromeActor.prototype._detach = function() {
+  if (!this.attached) {
+    return false;
+  }
+
+  Services.obs.removeObserver(this, "chrome-webnavigation-create");
+  Services.obs.removeObserver(this, "chrome-webnavigation-destroy");
+
+  // Iterate over all top-level windows.
+  let docShells = [];
+  let e = Services.ww.getWindowEnumerator();
+  while (e.hasMoreElements()) {
+    let window = e.getNext();
+    let docShell = window.QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIWebNavigation)
+                         .QueryInterface(Ci.nsIDocShell);
+    if (docShell == this.docShell) {
+      continue;
+    }
+    this._progressListener.unwatch(docShell);
+  }
+
+  TabActor.prototype._detach.call(this);
+};
+
+/* ThreadActor hooks. */
+
+/**
+ * Prepare to enter a nested event loop by disabling debuggee events.
+ */
+ChromeActor.prototype.preNest = function() {
+  // Disable events in all open windows.
+  let e = Services.wm.getEnumerator(null);
+  while (e.hasMoreElements()) {
+    let win = e.getNext();
+    let windowUtils = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIDOMWindowUtils);
+    windowUtils.suppressEventHandling(true);
+    windowUtils.suspendTimeouts();
+  }
+}
+
+/**
+ * Prepare to exit a nested event loop by enabling debuggee events.
+ */
+ChromeActor.prototype.postNest = function(aNestData) {
+  // Enable events in all open windows.
+  let e = Services.wm.getEnumerator(null);
+  while (e.hasMoreElements()) {
+    let win = e.getNext();
+    let windowUtils = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIDOMWindowUtils);
+    windowUtils.resumeTimeouts();
+    windowUtils.suppressEventHandling(false);
+  }
+}

toolkit/devtools/server/actors/root.js

@@ -10,9 +10,6 @@ const { Cc, Ci, Cu } = require("chrome");
 const Services = require("Services");
 const { ActorPool, appendExtraActors, createExtraActors } = require("devtools/server/actors/common");
 const { DebuggerServer } = require("devtools/server/main");
-const makeDebugger = require("./utils/make-debugger");
-
-loader.lazyRequireGetter(this, "StyleSheetActor", "devtools/server/actors/stylesheets", true);
 
 loader.lazyGetter(this, "ppmm", () => {
   return Cc["@mozilla.org/parentprocessmessagemanager;1"].getService(Ci.nsIMessageBroadcaster);
@@ -99,14 +96,10 @@ function RootActor(aConnection, aParameters) {
   this._onAddonListChanged = this.onAddonListChanged.bind(this);
   this._extraActors = {};
 
-  // Map of DOM stylesheets to StyleSheetActors
-  this._styleSheetActors = new Map();
+  this._globalActorPool = new ActorPool(this.conn);
+  this.conn.addActorPool(this._globalActorPool);
 
-  // This creates a Debugger instance for chrome debugging all globals.
-  this.makeDebugger = makeDebugger.bind(null, {
-    findDebuggees: dbg => dbg.findAllGlobals(),
-    shouldAddNewGlobalAsDebuggee: () => true
-  });
+  this._chromeActor = null;
 }
 
 RootActor.prototype = {
@@ -160,7 +153,16 @@ RootActor.prototype = {
     getUsedFontFaces: true,
     // Trait added in Gecko 38, indicating that all features necessary for
     // grabbing allocations from the MemoryActor are available for the performance tool
-    memoryActorAllocations: true
+    memoryActorAllocations: true,
+    // Whether root actor exposes tab actors
+    // if allowChromeProcess is true, you can fetch a ChromeActor instance
+    // to debug chrome and any non-content ressource via attachProcess request
+    // if allocChromeProcess is defined, but not true, it means that root actor
+    // no longer expose tab actors, but also that attachProcess forbids
+    // exposing actors for security reasons
+    get allowChromeProcess() {
+      return DebuggerServer.allowChromeProcess;
+    },
   },
 
   /**
@@ -176,66 +178,6 @@ RootActor.prototype = {
     };
   },
 
-  /**
-   * This is true for the root actor only, used by some child actors
-   */
-  get isRootActor() true,
-
-  /**
-   * The (chrome) window, for use by child actors
-   */
-  get window() isWorker ? null : Services.wm.getMostRecentWindow(DebuggerServer.chromeWindowType),
-
-  /**
-   * The list of all windows
-   */
-  get windows() {
-    return this.docShells.map(docShell => {
-      return docShell.QueryInterface(Ci.nsIInterfaceRequestor)
-                     .getInterface(Ci.nsIDOMWindow);
-    });
-  },
-
-  /**
-   * URL of the chrome window.
-   */
-  get url() { return this.window ? this.window.document.location.href : null; },
-
-  /**
-   * The top level window's docshell
-   */
-  get docShell() {
-    return this.window
-      .QueryInterface(Ci.nsIInterfaceRequestor)
-      .getInterface(Ci.nsIDocShell);
-  },
-
-  /**
-   * The list of all docshells
-   */
-  get docShells() {
-    let docShellsEnum = this.docShell.getDocShellEnumerator(
-      Ci.nsIDocShellTreeItem.typeAll,
-      Ci.nsIDocShell.ENUMERATE_FORWARDS
-    );
-
-    let docShells = [];
-    while (docShellsEnum.hasMoreElements()) {
-      docShells.push(docShellsEnum.getNext());
-    }
-
-    return docShells;
-  },
-
-  /**
-   * Getter for the best nsIWebProgress for to watching this window.
-   */
-  get webProgress() {
-    return this.docShell
-      .QueryInterface(Ci.nsIInterfaceRequestor)
-      .getInterface(Ci.nsIWebProgress);
-  },
-
   /**
    * Disconnects the actor from the browser window.
    */
@@ -251,8 +193,6 @@ RootActor.prototype = {
       this._parameters.onShutdown();
     }
     this._extraActors = null;
-    this._styleSheetActors.clear();
-    this._styleSheetActors = null;
   },
 
   /* The 'listTabs' request and the 'tabListChanged' notification. */
@@ -380,13 +320,34 @@ RootActor.prototype = {
   },
 
   onAttachProcess: function (aRequest) {
-    let mm = ppmm.getChildAt(aRequest.id);
-    if (!mm) {
-      return { error: "noProcess",
-               message: "There is no process with id '" + aRequest.id + "'." };
+    if (!DebuggerServer.allowChromeProcess) {
+      return { error: "forbidden",
+               message: "You are not allowed to debug chrome." };
+    }
+    if (("id" in aRequest) && typeof(aRequest.id) != "number") {
+      return { error: "wrongParameter",
+               message: "attachProcess requires a valid `id` attribute." };
+    }
+    // If the request doesn't contains id parameter or id is 0
+    // (id == 0, based on onListProcesses implementation)
+    if ((!("id" in aRequest)) || aRequest.id === 0) {
+      if (!this._chromeActor) {
+        // Create a ChromeActor for the parent process
+        let { ChromeActor } = require("devtools/server/actors/chrome");
+        this._chromeActor = new ChromeActor(this.conn);
+        this._globalActorPool.addActor(this._chromeActor);
+      }
+
+      return { form: this._chromeActor.form() };
+    } else {
+      let mm = ppmm.getChildAt(aRequest.id);
+      if (!mm) {
+        return { error: "noProcess",
+                 message: "There is no process with id '" + aRequest.id + "'." };
+      }
+      return DebuggerServer.connectToContent(this.conn, mm)
+                           .then(form => ({ form }));
     }
-    return DebuggerServer.connectToContent(this.conn, mm)
-                         .then(form => ({ form: form }));
   },
 
   /* This is not in the spec, but it's used by tests. */
@@ -406,60 +367,6 @@ RootActor.prototype = {
   _createExtraActors: createExtraActors,
   _appendExtraActors: appendExtraActors,
 
-  /* ThreadActor hooks. */
-
-  /**
-   * Prepare to enter a nested event loop by disabling debuggee events.
-   */
-  preNest: function() {
-    // Disable events in all open windows.
-    let e = Services.wm.getEnumerator(null);
-    while (e.hasMoreElements()) {
-      let win = e.getNext();
-      let windowUtils = win.QueryInterface(Ci.nsIInterfaceRequestor)
-                           .getInterface(Ci.nsIDOMWindowUtils);
-      windowUtils.suppressEventHandling(true);
-      windowUtils.suspendTimeouts();
-    }
-  },
-
-  /**
-   * Prepare to exit a nested event loop by enabling debuggee events.
-   */
-  postNest: function(aNestData) {
-    // Enable events in all open windows.
-    let e = Services.wm.getEnumerator(null);
-    while (e.hasMoreElements()) {
-      let win = e.getNext();
-      let windowUtils = win.QueryInterface(Ci.nsIInterfaceRequestor)
-                           .getInterface(Ci.nsIDOMWindowUtils);
-      windowUtils.resumeTimeouts();
-      windowUtils.suppressEventHandling(false);
-    }
-  },
-
-  /**
-   * Create or return the StyleSheetActor for a style sheet. This method
-   * is here because the Style Editor and Inspector share style sheet actors.
-   *
-   * @param DOMStyleSheet styleSheet
-   *        The style sheet to create an actor for.
-   * @return StyleSheetActor actor
-   *         The actor for this style sheet.
-   *
-   */
-  createStyleSheetActor: function(styleSheet) {
-    if (this._styleSheetActors.has(styleSheet)) {
-      return this._styleSheetActors.get(styleSheet);
-    }
-    let actor = new StyleSheetActor(styleSheet, this);
-    this._styleSheetActors.set(styleSheet, actor);
-
-    this._globalActorPool.addActor(actor);
-
-    return actor;
-  },
-
   /**
    * Remove the extra actor (added by DebuggerServer.addGlobalActor or
    * DebuggerServer.addTabActor) name |aName|.

toolkit/devtools/server/actors/webbrowser.js

@@ -36,6 +36,35 @@ function getWindowID(window) {
                .currentInnerWindowID;
 }
 
+function getDocShellChromeEventHandler(docShell) {
+  let handler = docShell.chromeEventHandler;
+  if (!handler) {
+    try {
+      // toplevel xul window's docshell doesn't have chromeEventHandler attribute
+      // the chrome event handler is just the global window object
+      handler = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+                        .getInterface(Ci.nsIDOMWindow);
+    } catch(e) {}
+  }
+  return handler;
+}
+function getChildDocShells(docShell) {
+  let docShellsEnum = docShell.getDocShellEnumerator(
+    Ci.nsIDocShellTreeItem.typeAll,
+    Ci.nsIDocShell.ENUMERATE_FORWARDS
+  );
+
+  let docShells = [];
+  while (docShellsEnum.hasMoreElements()) {
+    let docShell = docShellsEnum.getNext();
+    docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+            .getInterface(Ci.nsIWebProgress);
+    docShells.push(docShell);
+  }
+  return docShells;
+}
+exports.getChildDocShells = getChildDocShells;
+
 /**
  * Browser-specific actors.
  */
@@ -580,6 +609,10 @@ function TabActor(aConnection)
     shouldAddNewGlobalAsDebuggee: this._shouldAddNewGlobalAsDebuggee
   });
 
+  // Flag eventually overloaded by sub classes in order to watch new docshells
+  // Used on b2g to catch activity frames and in chrome to list all frames
+  this.listenForNewDocShells = Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT;
+
   this.traits = { reconfigure: true, frames: true };
 }
 
@@ -607,10 +640,7 @@ TabActor.prototype = {
    * An object on which listen for DOMWindowCreated and pageshow events.
    */
   get chromeEventHandler() {
-    // TODO: bug 992778, fix docShell.chromeEventHandler in child processes
-    return this.docShell.chromeEventHandler ||
-           this.docShell.QueryInterface(Ci.nsIInterfaceRequestor)
-                        .getInterface(Ci.nsIContentFrameMessageManager);
+    return getDocShellChromeEventHandler(this.docShell);
   },
 
   /**
@@ -634,29 +664,20 @@ TabActor.prototype = {
    * @return {Array}
    */
   get docShells() {
-    let docShellsEnum = this.docShell.getDocShellEnumerator(
-      Ci.nsIDocShellTreeItem.typeAll,
-      Ci.nsIDocShell.ENUMERATE_FORWARDS
-    );
-
-    let docShells = [];
-    while (docShellsEnum.hasMoreElements()) {
-      let docShell = docShellsEnum.getNext();
-      docShell.QueryInterface(Ci.nsIInterfaceRequestor)
-              .getInterface(Ci.nsIWebProgress);
-      docShells.push(docShell);
-    }
-
-    return docShells;
+    return getChildDocShells(this.docShell);
   },
 
   /**
    * Getter for the tab content's DOM window.
    */
   get window() {
-    return this.docShell
-      .QueryInterface(Ci.nsIInterfaceRequestor)
-      .getInterface(Ci.nsIDOMWindow);
+    // On xpcshell, there is no document
+    if (this.docShell) {
+      return this.docShell
+        .QueryInterface(Ci.nsIInterfaceRequestor)
+        .getInterface(Ci.nsIDOMWindow);
+    }
+    return null;
   },
 
   /**
@@ -761,17 +782,21 @@ TabActor.prototype = {
     dbg_assert(this.actorID,
                "tab should have an actorID.");
 
-    let windowUtils = this.window
-      .QueryInterface(Ci.nsIInterfaceRequestor)
-      .getInterface(Ci.nsIDOMWindowUtils);
-
     let response = {
-      actor: this.actorID,
-      title: this.title,
-      url: this.url,
-      outerWindowID: windowUtils.outerWindowID
+      actor: this.actorID
     };
 
+    // On xpcshell we are using tabactor even if there is no valid document.
+    // Actors like chrome debugger can work.
+    if (this.window) {
+      response.title = this.title;
+      response.url = this.url;
+      let windowUtils = this.window
+        .QueryInterface(Ci.nsIInterfaceRequestor)
+        .getInterface(Ci.nsIDOMWindowUtils);
+      response.outerWindowID = windowUtils.outerWindowID;
+    }
+
     // Walk over tab actors added by extensions and add them to a new ActorPool.
     let actorPool = new ActorPool(this.conn);
     this._createExtraActors(DebuggerServer.tabActorFactories, actorPool);
@@ -869,21 +894,24 @@ TabActor.prototype = {
     // ... and a pool for context-lifetime actors.
     this._pushContext();
 
-    this._progressListener = new DebuggerProgressListener(this);
+    // on xpcshell, there is no document
+    if (this.window) {
+      this._progressListener = new DebuggerProgressListener(this);
 
-    // Save references to the original document we attached to
-    this._originalWindow = this.window;
+      // Save references to the original document we attached to
+      this._originalWindow = this.window;
 
-    // Ensure replying to attach() request first
-    // before notifying about new docshells.
-    DevToolsUtils.executeSoon(() => this._watchDocshells());
+      // Ensure replying to attach() request first
+      // before notifying about new docshells.
+      DevToolsUtils.executeSoon(() => this._watchDocshells());
+    }
 
     this._attached = true;
   },
 
   _watchDocshells: function BTA_watchDocshells() {
     // In child processes, we watch all docshells living in the process.
-    if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
+    if (this.listenForNewDocShells) {
       Services.obs.addObserver(this, "webnavigation-create", false);
     }
     Services.obs.addObserver(this, "webnavigation-destroy", false);
@@ -927,28 +955,36 @@ TabActor.prototype = {
     }
     if (aTopic == "webnavigation-create") {
       aSubject.QueryInterface(Ci.nsIDocShell);
-      // webnavigation-create is fired very early during docshell construction.
-      // In new root docshells within child processes, involving TabChild,
-      // this event is from within this call:
-      //   http://hg.mozilla.org/mozilla-central/annotate/74d7fb43bb44/dom/ipc/TabChild.cpp#l912
-      // whereas the chromeEventHandler (and most likely other stuff) is set later:
-      //   http://hg.mozilla.org/mozilla-central/annotate/74d7fb43bb44/dom/ipc/TabChild.cpp#l944
-      // So wait a tick before watching it:
-      DevToolsUtils.executeSoon(() => {
-        // In child processes, we have new root docshells,
-        // let's watch them and all their child docshells.
-        if (this._isRootDocShell(aSubject)) {
-          this._progressListener.watch(aSubject);
-        }
-        this._notifyDocShellsUpdate([aSubject]);
-      });
+      this._onDocShellCreated(aSubject);
     } else if (aTopic == "webnavigation-destroy") {
-      let webProgress = aSubject.QueryInterface(Ci.nsIInterfaceRequestor)
-                                .getInterface(Ci.nsIWebProgress);
-      this._notifyDocShellDestroy(webProgress);
+      this._onDocShellDestroy(aSubject);
     }
   },
 
+  _onDocShellCreated: function (docShell) {
+    // (chrome-)webnavigation-create is fired very early during docshell construction.
+    // In new root docshells within child processes, involving TabChild,
+    // this event is from within this call:
+    //   http://hg.mozilla.org/mozilla-central/annotate/74d7fb43bb44/dom/ipc/TabChild.cpp#l912
+    // whereas the chromeEventHandler (and most likely other stuff) is set later:
+    //   http://hg.mozilla.org/mozilla-central/annotate/74d7fb43bb44/dom/ipc/TabChild.cpp#l944
+    // So wait a tick before watching it:
+    DevToolsUtils.executeSoon(() => {
+      // In child processes, we have new root docshells,
+      // let's watch them and all their child docshells.
+      if (this._isRootDocShell(docShell)) {
+        this._progressListener.watch(docShell);
+      }
+      this._notifyDocShellsUpdate([docShell]);
+    });
+  },
+
+  _onDocShellDestroy: function (docShell) {
+    let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+                              .getInterface(Ci.nsIWebProgress);
+    this._notifyDocShellDestroy(webProgress);
+  },
+
   _isRootDocShell: function (docShell) {
     // Root docshells like top level xul windows don't have chromeEventHandler.
     // Root docshells in child processes have one, it is TabChildGlobal,
@@ -962,7 +998,9 @@ TabActor.prototype = {
   // Convert docShell list to windows objects list being sent to the client
   _docShellsToWindows: function (docshells) {
     return docshells.map(docShell => {
-      let window = docShell.DOMWindow;
+      let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
+                                .getInterface(Ci.nsIWebProgress);
+      let window = webProgress.DOMWindow;
       let id = window.QueryInterface(Ci.nsIInterfaceRequestor)
                      .getInterface(Ci.nsIDOMWindowUtils)
                      .outerWindowID;
@@ -997,6 +1035,7 @@ TabActor.prototype = {
   },
 
   _notifyDocShellDestroy: function (webProgress) {
+    webProgress = webProgress.QueryInterface(Ci.nsIWebProgress);
     let id = webProgress.DOMWindow
                         .QueryInterface(Ci.nsIInterfaceRequestor)
                         .getInterface(Ci.nsIDOMWindowUtils)
@@ -1096,15 +1135,17 @@ TabActor.prototype = {
     if (this.docShell) {
       this._progressListener.unwatch(this.docShell);
     }
-    this._progressListener.destroy();
-    this._progressListener = null;
-    this._originalWindow = null;
+    if (this._processListener) {
+      this._progressListener.destroy();
+      this._progressListener = null;
+      this._originalWindow = null;
 
-    // Removes the observers being set in _watchDocShells
-    if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
-      Services.obs.removeObserver(this, "webnavigation-create", false);
+      // Removes the observers being set in _watchDocShells
+      if (this.listenForNewDocShells) {
+        Services.obs.removeObserver(this, "webnavigation-create");
+      }
+      Services.obs.removeObserver(this, "webnavigation-destroy");
     }
-    Services.obs.removeObserver(this, "webnavigation-destroy", false);
 
     this._popContext();
 
@@ -1304,9 +1345,11 @@ TabActor.prototype = {
 
     this._windowDestroyed(this.window, null, true);
 
-    DevToolsUtils.executeSoon(() => {
-      this._setWindow(window);
+    // Immediately change the window as this window, if in process of unload
+    // may already be non working on the next cycle and start throwing
+    this._setWindow(window);
 
+    DevToolsUtils.executeSoon(() => {
       // Then fake window-ready and navigate on the given document
       this._windowReady(window, true);
       DevToolsUtils.executeSoon(() => {
@@ -2018,11 +2061,7 @@ DebuggerProgressListener.prototype = {
                                           Ci.nsIWebProgress.NOTIFY_STATE_WINDOW |
                                           Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT);
 
-    // TODO: fix docShell.chromeEventHandler in child processes!
-    let handler = docShell.chromeEventHandler ||
-                  docShell.QueryInterface(Ci.nsIInterfaceRequestor)
-                    .getInterface(Ci.nsIContentFrameMessageManager);
-
+    let handler = getDocShellChromeEventHandler(docShell);
     handler.addEventListener("DOMWindowCreated", this._onWindowCreated, true);
     handler.addEventListener("pageshow", this._onWindowCreated, true);
     handler.addEventListener("pagehide", this._onWindowHidden, true);
@@ -2042,11 +2081,7 @@ DebuggerProgressListener.prototype = {
       webProgress.removeProgressListener(this);
     } catch(e) {}
 
-    // TODO: fix docShell.chromeEventHandler in child processes!
-    let handler = docShell.chromeEventHandler ||
-                  docShell.QueryInterface(Ci.nsIInterfaceRequestor)
-                    .getInterface(Ci.nsIContentFrameMessageManager);
-
+    let handler = getDocShellChromeEventHandler(docShell);
     handler.removeEventListener("DOMWindowCreated", this._onWindowCreated, true);
     handler.removeEventListener("pageshow", this._onWindowCreated, true);
     handler.removeEventListener("pagehide", this._onWindowHidden, true);
@@ -2057,18 +2092,10 @@ DebuggerProgressListener.prototype = {
   },
 
   _getWindowsInDocShell: function(docShell) {
-    let docShellsEnum = docShell.getDocShellEnumerator(
-      Ci.nsIDocShellTreeItem.typeAll,
-      Ci.nsIDocShell.ENUMERATE_FORWARDS
-    );
-
-    let windows = [];
-    while (docShellsEnum.hasMoreElements()) {
-      let w = docShellsEnum.getNext().QueryInterface(Ci.nsIInterfaceRequestor)
-                                     .getInterface(Ci.nsIDOMWindow);
-      windows.push(w);
-    }
-    return windows;
+    return getChildDocShells(docShell).map(d => {
+      return d.QueryInterface(Ci.nsIInterfaceRequestor)
+              .getInterface(Ci.nsIDOMWindow);
+    });
   },
 
   onWindowCreated: DevToolsUtils.makeInfallible(function(evt) {

toolkit/devtools/server/actors/webconsole.js

@@ -1503,6 +1503,9 @@ WebConsoleActor.prototype =
     // This method is called after this.window is changed,
     // so we register new listener on this new window
     this.onStartListeners({listeners: listeners});
+
+    // Also reset the cached top level chrome window being targeted
+    this._lastChromeWindow  = null;
   },
 };
 

toolkit/devtools/server/main.js

@@ -165,6 +165,11 @@ var DebuggerServer = {
    */
   chromeWindowType: null,
 
+  /**
+   * Allow debugging chrome of (parent or child) processes.
+   */
+  allowChromeProcess: false,
+
   /**
    * Initialize the debugger server.
    */
@@ -366,8 +371,6 @@ var DebuggerServer = {
 
     if (!restrictPrivileges) {
       this.addTabActors();
-      let { ChromeDebuggerActor } = require("devtools/server/actors/script");
-      this.addGlobalActor(ChromeDebuggerActor, "chromeDebugger");
       this.registerModule("devtools/server/actors/preference", {
         prefix: "preference",
         constructor: "PreferenceActor",
@@ -430,12 +433,12 @@ var DebuggerServer = {
     this.registerModule("devtools/server/actors/webconsole", {
       prefix: "console",
       constructor: "WebConsoleActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/inspector", {
       prefix: "inspector",
       constructor: "InspectorActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/call-watcher", {
       prefix: "callWatcher",
@@ -445,27 +448,27 @@ var DebuggerServer = {
     this.registerModule("devtools/server/actors/canvas", {
       prefix: "canvas",
       constructor: "CanvasActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/webgl", {
       prefix: "webgl",
       constructor: "WebGLActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/webaudio", {
       prefix: "webaudio",
       constructor: "WebAudioActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/stylesheets", {
       prefix: "styleSheets",
       constructor: "StyleSheetsActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/styleeditor", {
       prefix: "styleEditor",
       constructor: "StyleEditorActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/storage", {
       prefix: "storage",
@@ -485,17 +488,17 @@ var DebuggerServer = {
     this.registerModule("devtools/server/actors/memory", {
       prefix: "memory",
       constructor: "MemoryActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/framerate", {
       prefix: "framerate",
       constructor: "FramerateActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/eventlooplag", {
       prefix: "eventLoopLag",
       constructor: "EventLoopLagActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/layout", {
       prefix: "reflow",
@@ -505,17 +508,17 @@ var DebuggerServer = {
     this.registerModule("devtools/server/actors/csscoverage", {
       prefix: "cssUsage",
       constructor: "CSSUsageActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/monitor", {
       prefix: "monitor",
       constructor: "MonitorActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/timeline", {
       prefix: "timeline",
       constructor: "TimelineActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
     this.registerModule("devtools/server/actors/director-manager", {
       prefix: "directorManager",
@@ -526,13 +529,13 @@ var DebuggerServer = {
       this.registerModule("devtools/server/actors/profiler", {
         prefix: "profiler",
         constructor: "ProfilerActor",
-        type: { global: true, tab: true }
+        type: { tab: true }
       });
     }
     this.registerModule("devtools/server/actors/animation", {
       prefix: "animations",
       constructor: "AnimationsActor",
-      type: { global: true, tab: true }
+      type: { tab: true }
     });
   },
 

toolkit/devtools/server/moz.build

@@ -39,6 +39,7 @@ EXTRA_JS_MODULES.devtools.server.actors += [
     'actors/canvas.js',
     'actors/child-process.js',
     'actors/childtab.js',
+    'actors/chrome.js',
     'actors/common.js',
     'actors/csscoverage.js',
     'actors/device.js',