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// Copyright 2018 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_SHELF_SHELF_CONTROL_BUTTON_H_
#define ASH_SHELF_SHELF_CONTROL_BUTTON_H_
#include <memory>
#include "ash/ash_export.h"
#include "ash/shelf/shelf_button.h"
#include "base/macros.h"
#include "ui/views/controls/button/button.h"
namespace ash {
class ShelfView;
class Shelf;
// Base class for controls shown on the shelf that are not app shortcuts, such
// as the app list, back, and overflow buttons.
class ASH_EXPORT ShelfControlButton : public ShelfButton {
public:
explicit ShelfControlButton(ShelfView* shelf_view);
~ShelfControlButton() override;
// Get the center point of the button used to draw its background and ink
// drops.
gfx::Point GetCenterPoint() const;
protected:
// views::Button:
std::unique_ptr<views::InkDropRipple> CreateInkDropRipple() const override;
std::unique_ptr<views::InkDropMask> CreateInkDropMask() const override;
const char* GetClassName() const override;
void PaintBackground(gfx::Canvas* canvas, const gfx::Rect& bounds);
void PaintButtonContents(gfx::Canvas* canvas) override;
private:
// Calculates the bounds of the control button based on the shelf alignment.
gfx::Rect CalculateButtonBounds() const;
Shelf* shelf_;
DISALLOW_COPY_AND_ASSIGN(ShelfControlButton);
};
} // namespace ash
#endif // ASH_SHELF_SHELF_CONTROL_BUTTON_H_