// Copyright 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 ASH_WM_BOOT_SPLASH_SCREEN_CHROMEOS_H_ #define ASH_WM_BOOT_SPLASH_SCREEN_CHROMEOS_H_ #include <string> #include "base/basictypes.h" #include "base/memory/scoped_ptr.h" #include "base/time/time.h" namespace aura { class WindowTreeHost; } namespace ui { class Layer; class LayerDelegate; } namespace ash { // BootSplashScreen manages a ui::Layer, stacked at the top of the root layer's // children, that displays a copy of the initial contents of the host window. // This allows us to continue displaying the Chrome OS boot splash screen (which // is displayed before Ash starts) after the compositor has taken over so we can // animate the transition between the splash screen and the login screen. class BootSplashScreen { public: explicit BootSplashScreen(aura::WindowTreeHost* host); ~BootSplashScreen(); // Begins animating |layer_|'s opacity to 0 over |duration|. void StartHideAnimation(base::TimeDelta duration); private: class CopyHostContentLayerDelegate; // Copies the host window's content to |layer_|. scoped_ptr<CopyHostContentLayerDelegate> layer_delegate_; scoped_ptr<ui::Layer> layer_; DISALLOW_COPY_AND_ASSIGN(BootSplashScreen); }; } // namespace ash #endif // ASH_WM_BOOT_SPLASH_SCREEN_CHROMEOS_H_