ui/base/android/window_android_observer.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_BASE_ANDROID_WINDOW_ANDROID_OBSERVER_H_
   6 #define UI_BASE_ANDROID_WINDOW_ANDROID_OBSERVER_H_
   7
   8 #include "ui/base/ui_base_export.h"
   9
  10 namespace ui {
  11
  12 class UI_BASE_EXPORT WindowAndroidObserver {
  13  public:
  14   virtual void OnCompositingDidCommit() = 0;
  15   virtual void OnAttachCompositor() = 0;
  16   virtual void OnDetachCompositor() = 0;
  17   virtual void OnVSync(base::TimeTicks frame_time,
  18                        base::TimeDelta vsync_period) = 0;
  19   virtual void OnAnimate(base::TimeTicks frame_begin_time) {}
  20
  21  protected:
  22   virtual ~WindowAndroidObserver() {}
  23 };
  24
  25 }  // namespace ui
  26
  27 #endif  // UI_BASE_ANDROID_WINDOW_ANDROID_OBSERVER_H_