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 13 namespace gfx { 14 class Size; 15 } 16 17 namespace app_list { 18 19 // PulsingBlockView shows a pulsing white block via layer animation. 20 class 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