Delay wallpaper load by 2 * average wallpaper load time.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 
 #include <set>
 #include <string>
 
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/help_app_launcher.h"
 #include "chrome/browser/chromeos/login/login_display.h"
 #include "chrome/browser/chromeos/login/screens/error_screen_actor.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
+#include "chrome/browser/chromeos/login/wallpaper_manager.h"
 #include "chrome/browser/chromeos/net/network_portal_detector.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/system_key_event_listener.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_ui.h"
 #include "net/base/net_errors.h"
@@ skipping 136 matching lines @@
   virtual ~SigninScreenHandlerDelegate() {}
 };
 
 // A class that handles the WebUI hooks in sign-in screen in OobeDisplay
 // and LoginDisplay.
 class SigninScreenHandler
     : public BaseScreenHandler,
       public LoginDisplayWebUIHandler,
       public SystemKeyEventListener::CapsLockObserver,
       public content::NotificationObserver,
-      public NetworkStateInformer::NetworkStateInformerObserver {
+      public NetworkStateInformer::NetworkStateInformerObserver,
+      public WallpaperManager::Observer {
  public:
   SigninScreenHandler(
       const scoped_refptr<NetworkStateInformer>& network_state_informer,
       ErrorScreenActor* error_screen_actor,
       CoreOobeActor* core_oobe_actor);
   virtual ~SigninScreenHandler();
 
   // Shows the sign in screen. |oobe_ui| indicates whether the signin
   // screen is for OOBE or usual sign-in flow.
   void Show(bool oobe_ui);
 
   // Shows the login spinner UI for retail mode logins.
   void ShowRetailModeLoginSpinner();
 
   // Sets delegate to be used by the handler. It is guaranteed that valid
   // delegate is set before Show() method will be called.
   void SetDelegate(SigninScreenHandlerDelegate* delegate);
 
   void SetNativeWindowDelegate(NativeWindowDelegate* native_window_delegate);
 
   // NetworkStateInformer::NetworkStateInformerObserver implementation:
   virtual void OnNetworkReady() OVERRIDE;
   virtual void UpdateState(ErrorScreenActor::ErrorReason reason) OVERRIDE;
 
   // Required Local State preferences.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
+  // From WallpaperManager::Observer
+  void OnWallpaperAnimationFinished(const std::string& email) OVERRIDE;
+
  private:
   enum UIState {
     UI_STATE_UNKNOWN = 0,
     UI_STATE_GAIA_SIGNIN,
     UI_STATE_ACCOUNT_PICKER,
   };
 
   enum FrameState {
     FRAME_STATE_UNKNOWN = 0,
     FRAME_STATE_LOADING,
@@ skipping 229 matching lines @@
   // Emails of the users, whose passwords have recently been changed.
   std::set<std::string> password_changed_for_;
 
   // Test credentials.
   std::string test_user_;
   std::string test_pass_;
   bool test_expects_complete_login_;
 
   base::WeakPtrFactory<SigninScreenHandler> weak_factory_;
 
+  base::WeakPtrFactory<WallpaperManager::Observer> weak_factory_as_observer_;
+
   // Set to true once |LOGIN_WEBUI_VISIBLE| notification is observed.
   bool webui_visible_;
   bool preferences_changed_delayed_;
 
   ErrorScreenActor* error_screen_actor_;
   CoreOobeActor* core_oobe_actor_;
 
   bool is_first_update_state_call_;
   bool offline_login_active_;
   NetworkStateInformer::State last_network_state_;
@@ skipping 10 matching lines @@
 
   scoped_ptr<CrosSettings::ObserverSubscription> allow_new_user_subscription_;
   scoped_ptr<CrosSettings::ObserverSubscription> allow_guest_subscription_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_