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1 // Copyright (c) 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 UI_VIEWS_COREWM_CURSOR_MANAGER_H_ | |
6 #define UI_VIEWS_COREWM_CURSOR_MANAGER_H_ | |
7 | |
8 #include "base/basictypes.h" | |
9 #include "base/compiler_specific.h" | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "base/observer_list.h" | |
12 #include "ui/aura/client/cursor_client.h" | |
13 #include "ui/base/cursor/cursor.h" | |
14 #include "ui/gfx/native_widget_types.h" | |
15 #include "ui/gfx/point.h" | |
16 #include "ui/views/corewm/native_cursor_manager_delegate.h" | |
17 #include "ui/views/views_export.h" | |
18 | |
19 namespace gfx { | |
20 class Display; | |
21 } | |
22 | |
23 namespace views { | |
24 namespace corewm { | |
25 | |
26 namespace internal { | |
27 class CursorState; | |
28 } | |
29 | |
30 class NativeCursorManager; | |
31 | |
32 // This class receives requests to change cursor properties, as well as | |
33 // requests to queue any further changes until a later time. It sends changes | |
34 // to the NativeCursorManager, which communicates back to us when these changes | |
35 // were made through the NativeCursorManagerDelegate interface. | |
36 class VIEWS_EXPORT CursorManager : public aura::client::CursorClient, | |
37 public NativeCursorManagerDelegate { | |
38 public: | |
39 CursorManager(scoped_ptr<NativeCursorManager> delegate); | |
40 virtual ~CursorManager(); | |
41 | |
42 // Overridden from aura::client::CursorClient: | |
43 virtual void SetCursor(gfx::NativeCursor) OVERRIDE; | |
44 virtual gfx::NativeCursor GetCursor() const OVERRIDE; | |
45 virtual void ShowCursor() OVERRIDE; | |
46 virtual void HideCursor() OVERRIDE; | |
47 virtual bool IsCursorVisible() const OVERRIDE; | |
48 virtual void SetScale(float scale) OVERRIDE; | |
49 virtual float GetScale() const OVERRIDE; | |
50 virtual void SetCursorSet(ui::CursorSetType cursor_set) OVERRIDE; | |
51 virtual ui::CursorSetType GetCursorSet() const OVERRIDE; | |
52 virtual void EnableMouseEvents() OVERRIDE; | |
53 virtual void DisableMouseEvents() OVERRIDE; | |
54 virtual bool IsMouseEventsEnabled() const OVERRIDE; | |
55 virtual void SetDisplay(const gfx::Display& display) OVERRIDE; | |
56 virtual void LockCursor() OVERRIDE; | |
57 virtual void UnlockCursor() OVERRIDE; | |
58 virtual bool IsCursorLocked() const OVERRIDE; | |
59 virtual void AddObserver( | |
60 aura::client::CursorClientObserver* observer) OVERRIDE; | |
61 virtual void RemoveObserver( | |
62 aura::client::CursorClientObserver* observer) OVERRIDE; | |
63 | |
64 private: | |
65 // Overridden from NativeCursorManagerDelegate: | |
66 virtual void CommitCursor(gfx::NativeCursor cursor) OVERRIDE; | |
67 virtual void CommitVisibility(bool visible) OVERRIDE; | |
68 virtual void CommitScale(float scale) OVERRIDE; | |
69 virtual void CommitCursorSet(ui::CursorSetType cursor_set) OVERRIDE; | |
70 virtual void CommitMouseEventsEnabled(bool enabled) OVERRIDE; | |
71 | |
72 scoped_ptr<NativeCursorManager> delegate_; | |
73 | |
74 // Number of times LockCursor() has been invoked without a corresponding | |
75 // UnlockCursor(). | |
76 int cursor_lock_count_; | |
77 | |
78 // The current state of the cursor. | |
79 scoped_ptr<internal::CursorState> current_state_; | |
80 | |
81 // The cursor state to restore when the cursor is unlocked. | |
82 scoped_ptr<internal::CursorState> state_on_unlock_; | |
83 | |
84 ObserverList<aura::client::CursorClientObserver> observers_; | |
85 | |
86 DISALLOW_COPY_AND_ASSIGN(CursorManager); | |
87 }; | |
88 | |
89 } // namespace corewm | |
90 } // namespace views | |
91 | |
92 #endif // UI_VIEWS_COREWM_CURSOR_MANAGER_H_ | |
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