1 // Copyright 2014 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.
5 #ifndef ASH_SHELF_ALTERNATE_APP_LIST_BUTTON_H_
6 #define ASH_SHELF_ALTERNATE_APP_LIST_BUTTON_H_
8 #include "ui/views/controls/button/image_button.h"
16 class ShelfButtonHost;
18 // Button used for the AppList icon on the shelf.
19 // This class is an alternate implementation to ash::internal::AppListButton
20 // for the purposes of testing an alternate shelf layout
21 // (see ash_switches: UseAlternateShelfLayout).
22 class AlternateAppListButton : public views::ImageButton {
24 // Bounds size (inset) required for the app icon image (in pixels).
25 static const int kImageBoundsSize;
27 AlternateAppListButton(views::ButtonListener* listener,
28 ShelfButtonHost* host,
29 ShelfWidget* shelf_widget);
30 virtual ~AlternateAppListButton();
33 // views::ImageButton overrides:
34 virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
35 virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
36 virtual void OnMouseCaptureLost() OVERRIDE;
37 virtual bool OnMouseDragged(const ui::MouseEvent& event) OVERRIDE;
38 virtual void OnMouseMoved(const ui::MouseEvent& event) OVERRIDE;
39 virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
40 virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
41 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
42 virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
44 // ui::EventHandler overrides:
45 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
48 ShelfButtonHost* host_;
49 // Reference to the shelf widget containing this button, owned by the
50 // root window controller.
51 ShelfWidget* shelf_widget_;
53 DISALLOW_COPY_AND_ASSIGN(AlternateAppListButton);
56 } // namespace internal
59 #endif // ASH_SHELF_ALTERNATE_APP_LIST_BUTTON_H_