OLD | NEW |
| (Empty) |
1 // Copyright (c) 2006-2008 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 CHROME_BROWSER_VIEWS_STAR_TOGGLE_H_ | |
6 #define CHROME_BROWSER_VIEWS_STAR_TOGGLE_H_ | |
7 | |
8 #include "views/view.h" | |
9 #include "views/event.h" | |
10 | |
11 class SkBitmap; | |
12 | |
13 //////////////////////////////////////////////////////////////////////////////// | |
14 // | |
15 // A view subclass to implement the star button. The star button notifies its | |
16 // Delegate when the state changes. | |
17 // | |
18 //////////////////////////////////////////////////////////////////////////////// | |
19 class StarToggle : public views::View { | |
20 public: | |
21 class Delegate { | |
22 public: | |
23 // Called when the star is toggled. | |
24 virtual void StarStateChanged(bool state) = 0; | |
25 }; | |
26 | |
27 explicit StarToggle(Delegate* delegate); | |
28 virtual ~StarToggle(); | |
29 | |
30 // Set whether the star is checked. | |
31 void SetState(bool s); | |
32 bool GetState() const; | |
33 | |
34 // If true (the default) the state is immediately changed on a mouse release. | |
35 // If false, on mouse release the delegate is notified, but the state is not | |
36 // changed. | |
37 void set_change_state_immediately(bool value) { | |
38 change_state_immediately_ = value; | |
39 } | |
40 | |
41 // Check/uncheck the star. | |
42 void SwitchState(); | |
43 | |
44 // Overriden from view. | |
45 void Paint(gfx::Canvas* canvas); | |
46 gfx::Size GetPreferredSize(); | |
47 virtual bool OnMousePressed(const views::MouseEvent& e); | |
48 virtual bool OnMouseDragged(const views::MouseEvent& event); | |
49 virtual void OnMouseReleased(const views::MouseEvent& e, bool canceled); | |
50 bool OnKeyPressed(const views::KeyEvent& e); | |
51 | |
52 private: | |
53 // The state. | |
54 bool state_; | |
55 | |
56 // Our bitmap. | |
57 SkBitmap* state_off_; | |
58 SkBitmap* state_on_; | |
59 | |
60 // Parent to be notified. | |
61 Delegate* delegate_; | |
62 | |
63 // See note in setter. | |
64 bool change_state_immediately_; | |
65 | |
66 DISALLOW_EVIL_CONSTRUCTORS(StarToggle); | |
67 }; | |
68 | |
69 #endif // CHROME_BROWSER_VIEWS_STAR_TOGGLE_H_ | |
OLD | NEW |