1// Copyright (c) 2012 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_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_ 6#define UI_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_ 7 8#include "base/basictypes.h" 9#include "base/compiler_specific.h" 10#include "base/timer/timer.h" 11#include "ui/views/view.h" 12 13namespace gfx { 14class Size; 15} 16 17namespace app_list { 18 19// PulsingBlockView shows a pulsing white block via layer animation. 20class PulsingBlockView : public views::View { 21 public: 22 // Constructs a PulsingBlockView of |size|. If |start_delay| is true, 23 // starts the pulsing animation after a random delay. 24 PulsingBlockView(const gfx::Size& size, bool start_delay); 25 virtual ~PulsingBlockView(); 26 27 private: 28 void OnStartDelayTimer(); 29 30 // views::View overrides: 31 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 32 33 base::OneShotTimer<PulsingBlockView> start_delay_timer_; 34 35 DISALLOW_COPY_AND_ASSIGN(PulsingBlockView); 36}; 37 38} // namespace app_list 39 40#endif // UI_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_ 41