chromeos: Sync animation.

chrome/browser/ui/ash/launcher/chrome_launcher_controller.h

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
index 2e9fb23c7085e4e091fbcc0886cd41877cf4d665..188922e8ef5b55f1771b6430063101ebf1235d7d 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 
+#include <deque>
 #include <list>
 #include <map>
 #include <string>
@@ -17,9 +18,11 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/timer.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/shell_window_registry.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/aura/client/activation_change_observer.h"
@@ -42,6 +45,7 @@ class BrowserLauncherItemController;
 class BrowserLauncherItemControllerTest;
 class PrefService;
 class Profile;
+class ProfileSyncService;
 class TabContents;
 
 // ChromeLauncherController manages the launcher items needed for tabbed
@@ -53,7 +57,8 @@ class ChromeLauncherController
       public content::NotificationObserver,
       public ShellWindowRegistry::Observer,
       public aura::client::ActivationChangeObserver,
-      public aura::WindowObserver {
+      public aura::WindowObserver,
+      public ProfileSyncServiceObserver {
  public:
   // Indicates if a launcher item is incognito or not.
   enum IncognitoState {
@@ -236,17 +241,20 @@ class ChromeLauncherController
   virtual void OnShellWindowAdded(ShellWindow* shell_window) OVERRIDE;
   virtual void OnShellWindowRemoved(ShellWindow* shell_window) OVERRIDE;
 
-  // Overriden from client::ActivationChangeObserver:
+  // Overridden from client::ActivationChangeObserver:
   virtual void OnWindowActivated(
       aura::Window* active,
       aura::Window* old_active) OVERRIDE;
 
-  // Overriden from aura::WindowObserver:
+  // Overridden from aura::WindowObserver:
   virtual void OnWindowRemovingFromRootWindow(aura::Window* window) OVERRIDE;
 
-  // Overriden from ash::ShellObserver:
+  // Overridden from ash::ShellObserver:
   virtual void OnShelfAlignmentChanged() OVERRIDE;
 
+  // Overridden from ProfileSyncServiceObserver:
+  virtual void OnStateChanged() OVERRIDE;
+
  private:
   friend class BrowserLauncherItemControllerTest;
   friend class ChromeLauncherControllerTest;
@@ -290,10 +298,6 @@ class ChromeLauncherController
   // Returns item status for given |id|.
   ash::LauncherItemStatus GetItemStatus(ash::LauncherID id) const;
 
-  // Finds the launcher item that represents given |app_id| and updates the
-  // pending state.
-  void MarkAppPending(const std::string& app_id);
-
   // Internal helpers for pinning and unpinning that handle both
   // client-triggered and internal pinning operations.
   void DoPinAppWithID(const std::string& app_id);
@@ -319,6 +323,13 @@ class ChromeLauncherController
       ash::LauncherItemStatus status,
       int index);
 
+  // Checks whether sync is completed and no pending synced extension install.
+  // Stops loading UI when both conditions are met.
+  void CheckAppSync();
+
+  void StartLoadingUI();
+  void StopLoadingUI();
+
   static ChromeLauncherController* instance_;
 
   ash::LauncherModel* model_;
@@ -354,6 +365,10 @@ class ChromeLauncherController
   PrefChangeRegistrar pref_change_registrar_;
   aura::client::ActivationClient* activation_client_;
 
+  std::deque<ash::LauncherID> app_placeholders_;

[sky, 2012/08/15 20:52:36]

Add a description of this. Or perhaps a general description of app placeholders
some where and a see description here.

[xiyuan, 2012/08/15 21:36:03]

Added general description above StartLoadingUI.

+  ProfileSyncService* observed_sync_service_;
+  base::OneShotTimer<ChromeLauncherController> loading_timer_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherController);
 };