ash/launcher/overflow_button.h

   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 ASH_LAUNCHER_OVERFLOW_BUTTON_H_
   6 #define ASH_LAUNCHER_OVERFLOW_BUTTON_H_
   7
   8 #include "ash/shelf/shelf_types.h"
   9 #include "base/basictypes.h"
  10 #include "base/compiler_specific.h"
  11 #include "ui/views/controls/button/custom_button.h"
  12
  13 namespace gfx {
  14 class ImageSkia;
  15 }
  16
  17 namespace ash {
  18 namespace internal {
  19
  20 // Launcher overflow chevron button.
  21 class OverflowButton : public views::CustomButton {
  22  public:
  23   explicit OverflowButton(views::ButtonListener* listener);
  24   virtual ~OverflowButton();
  25
  26   void OnShelfAlignmentChanged();
  27
  28  private:
  29   void PaintBackground(gfx::Canvas* canvas, int alpha);
  30
  31   // views::View overrides:
  32   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
  33
  34   const gfx::ImageSkia* image_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(OverflowButton);
  37 };
  38
  39 }  // namespace internal
  40 }  // namespace ash
  41
  42 #endif  // ASH_LAUNCHER_OVERFLOW_BUTTON_H_