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1 // Copyright 2013 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_SHELF_ALTERNATE_APP_LIST_BUTTON_H_ | |
6 #define ASH_SHELF_ALTERNATE_APP_LIST_BUTTON_H_ | |
7 | |
8 #include "ui/views/controls/button/image_button.h" | |
9 | |
10 namespace ash { | |
11 | |
12 class ShelfWidget; | |
13 | |
14 namespace internal { | |
15 | |
16 class ShelfButtonHost; | |
17 | |
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 { | |
23 public: | |
24 // Bounds size (inset) required for the app icon image (in pixels). | |
25 static const int kImageBoundsSize; | |
26 | |
27 AlternateAppListButton(views::ButtonListener* listener, | |
28 ShelfButtonHost* host, | |
29 ShelfWidget* shelf_widget); | |
30 virtual ~AlternateAppListButton(); | |
31 | |
32 protected: | |
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; | |
43 | |
44 // ui::EventHandler overrides: | |
45 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; | |
46 | |
47 private: | |
48 ShelfButtonHost* host_; | |
49 // Reference to the shelf widget containing this button, owned by the | |
50 // root window controller. | |
51 ShelfWidget* shelf_widget_; | |
52 | |
53 DISALLOW_COPY_AND_ASSIGN(AlternateAppListButton); | |
54 }; | |
55 | |
56 } // namespace internal | |
57 } // namespace ash | |
58 | |
59 #endif // ASH_SHELF_ALTERNATE_APP_LIST_BUTTON_H_ | |
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