Add ability APIs for opening a window with a url embedded, focusing and activating a window.

mojo/services/window_manager/window_manager_app.h

Index: mojo/services/window_manager/window_manager_app.h
diff --git a/mojo/services/window_manager/window_manager_app.h b/mojo/services/window_manager/window_manager_app.h
index 6f4c64cfbe04de51e87a772c4ab6f9bc064c4093..9792f76e1788b06c52f969fcacedb4025ba764e4 100644
--- a/mojo/services/window_manager/window_manager_app.h
+++ b/mojo/services/window_manager/window_manager_app.h
@@ -10,10 +10,18 @@
 #include "base/memory/scoped_ptr.h"
 #include "mojo/aura/window_tree_host_mojo_delegate.h"
 #include "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/bindings/string.h"
+#include "mojo/services/public/cpp/view_manager/node_observer.h"
 #include "mojo/services/public/cpp/view_manager/types.h"
 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
+#include "ui/aura/client/focus_change_observer.h"
+#include "ui/wm/public/activation_change_observer.h"
 
 namespace aura {
+namespace client {
+class ActivationClient;
+class FocusClient;
+}
 class Window;
 }
 
@@ -29,7 +37,10 @@ class WindowTreeHostMojo;
 
 class WindowManagerApp : public ApplicationDelegate,
                          public view_manager::ViewManagerDelegate,
-                         public WindowTreeHostMojoDelegate {
+                         public view_manager::NodeObserver,
+                         public WindowTreeHostMojoDelegate,
+                         public aura::client::FocusChangeObserver,
+                         public aura::client::ActivationChangeObserver {
  public:
   WindowManagerApp();
   virtual ~WindowManagerApp();
@@ -38,12 +49,16 @@ class WindowManagerApp : public ApplicationDelegate,
   void RemoveConnection(WindowManagerServiceImpl* connection);
 
   view_manager::Id OpenWindow();
+  view_manager::Id OpenWindowWithURL(const String& url);
   void SetCapture(view_manager::Id node);
+  void FocusWindow(view_manager::Id node);
+  void ActivateWindow(view_manager::Id node);
 
   bool IsReady() const;
 
  private:
   typedef std::set<WindowManagerServiceImpl*> Connections;
+  typedef std::map<view_manager::Id, aura::Window*> NodeIdToWindowMap;
 
   // Overridden from ApplicationDelegate:
   virtual void Initialize(ApplicationImpl* impl) MOJO_OVERRIDE;
@@ -56,11 +71,32 @@ class WindowManagerApp : public ApplicationDelegate,
   virtual void OnViewManagerDisconnected(
       view_manager::ViewManager* view_manager) MOJO_OVERRIDE;
 
+  // Overridden from view_manager::NodeObserver:
+  virtual void OnTreeChanged(
+      const view_manager::NodeObserver::TreeChangeParams& params) MOJO_OVERRIDE;
+
   // Overridden from WindowTreeHostMojoDelegate:
   virtual void CompositorContentsChanged(const SkBitmap& bitmap) MOJO_OVERRIDE;
 
+  // Overridden from aura::client::FocusChangeObserver:
+  virtual void OnWindowFocused(aura::Window* gained_focus,
+                               aura::Window* lost_focus) MOJO_OVERRIDE;
+
+  // Overridden from aura::client::ActivationChangeObserver:
+  virtual void OnWindowActivated(aura::Window* gained_active,
+                                 aura::Window* lost_active) MOJO_OVERRIDE;
+
   aura::Window* GetWindowForNodeId(view_manager::Id node) const;
 
+  // Creates an aura::Window for every node in the hierarchy beneath |id|,
+  // and adds to the registry so that it can be retrieved later via
+  // GetWindowForNodeId().
+  // TODO(beng): perhaps Node should have a property bag.
+  void RegisterSubtree(view_manager::Id id, aura::Window* parent);
+  // Deletes the aura::Windows associated with the hierarchy beneath |id|,
+  // and removes from the registry.
+  void UnregisterSubtree(view_manager::Id id);
+
   view_manager::ViewManager* view_manager_;
   view_manager::Node* root_;
 
@@ -68,8 +104,11 @@ class WindowManagerApp : public ApplicationDelegate,
   scoped_ptr<WindowTreeHostMojo> window_tree_host_;
 
   scoped_ptr<wm::ScopedCaptureClient> capture_client_;
+  scoped_ptr<aura::client::FocusClient> focus_client_;
+  aura::client::ActivationClient* activation_client_;
 
   Connections connections_;
+  NodeIdToWindowMap node_id_to_window_map_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowManagerApp);
 };