Add new animations in second implementation.

ash/wm/session_state_animator.h

 // Copyright (c) 2012 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 ASH_WM_SESSION_STATE_ANIMATOR_H_
 #define ASH_WM_SESSION_STATE_ANIMATOR_H_
 
 #include "ash/ash_export.h"
+#include "ash/wm/workspace/colored_window_controller.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
 #include "ui/aura/root_window_observer.h"
 #include "ui/aura/window.h"
 
 namespace gfx {
 class Rect;
 class Size;
 }
@@ skipping 10 matching lines @@
 class ASH_EXPORT SessionStateAnimator : public aura::RootWindowObserver {
  public:
   // Animations that can be applied to groups of containers.
   enum AnimationType {
     ANIMATION_PARTIAL_CLOSE = 0,
     ANIMATION_UNDO_PARTIAL_CLOSE,
     ANIMATION_FULL_CLOSE,
     ANIMATION_FADE_IN,
     ANIMATION_HIDE,
     ANIMATION_RESTORE,
+    ANIMATION_RAISE,
+    ANIMATION_LOWER,
+    ANIMATION_PARTIAL_FADE_IN,
+    ANIMATION_UNDO_PARTIAL_FADE_IN,
+    ANIMATION_FULL_FADE_IN,
   };
 
   // Specific containers or groups of containers that can be animated.
   enum Container {
     DESKTOP_BACKGROUND = 1 << 0,
     LAUNCHER = 1 << 1,
 
     // All user session related containers including system background but
     // not including desktop background (wallpaper).
     NON_LOCK_SCREEN_CONTAINERS = 1 << 2,
 
     // Desktop wallpaper is moved to this layer when screen is locked.
     // This layer is excluded from lock animation so that wallpaper stays as is,
     // user session windows are hidden and lock UI is shown on top of it.
     // This layer is included in shutdown animation.
     LOCK_SCREEN_BACKGROUND = 1 << 3,
 
     // Lock screen and lock screen modal containers.
     LOCK_SCREEN_CONTAINERS = 1 << 4,
 
     // Multiple system layers belong here like status, menu, tooltip
     // and overlay layers.
     LOCK_SCREEN_RELATED_CONTAINERS = 1 << 5,
+
+    LOCK_SCREEN_SYSTEM_FOREGROUND = 1 << 6,
   };
 
   // Helper class used by tests to access internal state.
   class ASH_EXPORT TestApi {
    public:
     explicit TestApi(SessionStateAnimator* animator)
         : animator_(animator) {}
 
     bool hide_black_layer_timer_is_running() const {
       return animator_->hide_black_layer_timer_.IsRunning();
@@ skipping 27 matching lines @@
   const static int kAllContainersMask;
 
   SessionStateAnimator();
   virtual ~SessionStateAnimator();
 
   // Shows or hides |black_layer_|.  The show method creates and
   // initializes the layer if it doesn't already exist.
   void ShowBlackLayer();
   void DropBlackLayer();
 
+  // Create |foreground_| layer if it doesn't already exist, but makes it
+  // completely transparent.
+  void CreateForeground();
+  // Destroy |foreground_| when it is not needed anymore.
+  void DropForeground();
+
   // Drops back layer after |UNDO_SLOW_CLOSE| animation delay.
   void ScheduleDropBlackLayer();
 
   // Apply animation |type| to all containers included in |container_mask|.
   void StartAnimation(int container_mask,
                       AnimationType type);
 
   // Fills |containers| with the containers included in |container_mask|.
   void GetContainers(int container_mask,
                      aura::Window::Windows* containers);
 
   // aura::RootWindowObserver overrides:
   virtual void OnRootWindowResized(const aura::RootWindow* root,
                                    const gfx::Size& old_size) OVERRIDE;
 
  private:
   // Layer that's stacked under all of the root window's children to provide a
   // black background when we're scaling all of the other windows down.
   // TODO(derat): Remove this in favor of having the compositor only clear the
   // viewport when there are regions not covered by a layer:
   // http://crbug.com/113445
   scoped_ptr<ui::Layer> black_layer_;
 
+  // White foreground that is used during shutdown animation to "fade
+  // everything into white".
+  scoped_ptr<ColoredWindowController> foreground_;
+
   // Started when we abort the pre-lock state.  When it fires, we hide
   // |black_layer_|, as the desktop background is now covering the whole
   // screen.
   base::OneShotTimer<SessionStateAnimator> hide_black_layer_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionStateAnimator);
 };
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_WM_SESSION_STATE_ANIMATOR_H_