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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ | 5 #ifndef CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ |
6 #define CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ | 6 #define CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ |
7 | 7 |
8 #include "chrome/browser/extensions/global_shortcut_listener.h" | |
9 | |
10 #include <Carbon/Carbon.h> | |
11 #include <CoreFoundation/CoreFoundation.h> | |
12 #include <map> | |
13 | |
8 #include "base/lazy_instance.h" | 14 #include "base/lazy_instance.h" |
9 #include "chrome/browser/extensions/global_shortcut_listener.h" | 15 #include "base/mac/scoped_nsobject.h" |
10 | 16 |
11 namespace extensions { | 17 namespace extensions { |
12 | 18 |
13 // Mac-specific implementation of the GlobalShortcutListener class that | 19 // Mac-specific implementation of the GlobalShortcutListener class that |
14 // listens for global shortcuts. Handles basic keyboard intercepting and | 20 // listens for global shortcuts. Handles basic keyboard intercepting and |
15 // forwards its output to the base class for processing. | 21 // forwards its output to the base class for processing. |
16 // TODO(finnur/smus): Implement this class. | 22 // |
23 // Uses an event tap for intercepting media keys (PlayPause, NextTrack, | |
24 // PreviousTrack). Also uses the Carbon RegisterEventHotKey API for binding to | |
25 // non-media key global keyboard shortcuts (eg. Command-Shift-1). | |
17 class GlobalShortcutListenerMac : public GlobalShortcutListener { | 26 class GlobalShortcutListenerMac : public GlobalShortcutListener { |
18 public: | 27 public: |
19 virtual ~GlobalShortcutListenerMac(); | 28 virtual ~GlobalShortcutListenerMac(); |
20 | 29 |
21 virtual void StartListening() OVERRIDE; | 30 virtual void StartListening() OVERRIDE; |
22 virtual void StopListening() OVERRIDE; | 31 virtual void StopListening() OVERRIDE; |
23 | 32 |
33 // Keyboard event callbacks. | |
34 bool OnKeyEvent(EventHotKeyID hotKeyID); | |
35 bool OnMediaKeyEvent(int key_code); | |
36 | |
24 private: | 37 private: |
25 friend struct base::DefaultLazyInstanceTraits<GlobalShortcutListenerMac>; | 38 friend struct base::DefaultLazyInstanceTraits<GlobalShortcutListenerMac>; |
26 | 39 |
27 GlobalShortcutListenerMac(); | 40 GlobalShortcutListenerMac(); |
28 | 41 |
29 // Register an |accelerator| with the particular |observer|. | 42 // Register an |accelerator| with the particular |observer|. |
30 virtual void RegisterAccelerator( | 43 virtual void RegisterAccelerator( |
31 const ui::Accelerator& accelerator, | 44 const ui::Accelerator& accelerator, |
32 GlobalShortcutListener::Observer* observer) OVERRIDE; | 45 GlobalShortcutListener::Observer* observer) OVERRIDE; |
33 // Unregister an |accelerator| with the particular |observer|. | 46 // Unregister an |accelerator| with the particular |observer|. |
34 virtual void UnregisterAccelerator( | 47 virtual void UnregisterAccelerator( |
35 const ui::Accelerator& accelerator, | 48 const ui::Accelerator& accelerator, |
36 GlobalShortcutListener::Observer* observer) OVERRIDE; | 49 GlobalShortcutListener::Observer* observer) OVERRIDE; |
37 | 50 |
51 // Mac-specific functions for registering a keyboard shortcut. | |
52 void RegisterHotKey(const ui::Accelerator& accelerator); | |
53 void UnregisterHotKey(const ui::Accelerator& accelerator); | |
54 | |
55 // Enable and disable the media key event tap. | |
56 void StartWatchingMediaKeys(); | |
57 void StopWatchingMediaKeys(); | |
58 | |
59 // Convert from mac media key code to the equivalent keyboard code. | |
60 ui::KeyboardCode MediaKeyCodeToKeyboardCode(int keyCode); | |
Robert Sesek
2013/11/22 16:49:59
naming: key_code
smus
2013/11/22 20:48:09
Done.
| |
61 | |
62 // Determine if a key is a media key or not. | |
63 // TODO(smus): Use the one in CommandService. | |
Robert Sesek
2013/11/22 16:49:59
What is "the one" referring to?
Finnur
2013/11/22 17:52:53
Neo.
smus
2013/11/22 20:48:09
No longer relevant. Switched to CommandService::Is
| |
64 bool IsMediaKey(const ui::Accelerator& accelerator); | |
65 | |
66 // Whether or not any media keys are currently registered. | |
67 bool AreMediaKeysRegistered(); | |
68 | |
69 // Re-enable the event tap if it was disabled by a timeout. | |
70 void EnableTap(); | |
71 | |
72 // The callback for when an event tap happens. | |
73 static CGEventRef EventTapCallback( | |
74 CGEventTapProxy proxy, CGEventType type, CGEventRef event, void* refcon); | |
75 | |
38 // Whether this object is listening for global shortcuts. | 76 // Whether this object is listening for global shortcuts. |
39 bool is_listening_; | 77 bool is_listening_; |
40 | 78 |
79 // A counter representing the current hotkey identifier. | |
80 int hotkey_id_ = 0; | |
81 | |
82 // A map of all hotkeys (media keys and shortcuts) mapping to their | |
83 // corresponding hotkey IDs. For quickly finding if an accelerator is | |
84 // registered. | |
85 typedef std::map<ui::Accelerator, int> HotKeyIdMap; | |
86 HotKeyIdMap hotkey_ids_; | |
87 | |
88 // The inverse map for quickly looking up accelerators by hotkey id. | |
89 typedef std::map<int, ui::Accelerator> IdHotKeyMap; | |
90 IdHotKeyMap id_hotkeys_; | |
91 | |
92 // Keyboard shortcut IDs to hotkeys map for unregistration. | |
93 typedef std::map<int, EventHotKeyRef> IdHotKeyRefMap; | |
94 IdHotKeyRefMap id_hotkey_refs_; | |
95 | |
96 // Event tap for intercepting mac media keys. | |
97 CFMachPortRef event_tap_; | |
98 CFRunLoopSourceRef event_tap_source_; | |
99 | |
41 DISALLOW_COPY_AND_ASSIGN(GlobalShortcutListenerMac); | 100 DISALLOW_COPY_AND_ASSIGN(GlobalShortcutListenerMac); |
42 }; | 101 }; |
43 | 102 |
44 } // namespace extensions | 103 } // namespace extensions |
45 | 104 |
46 #endif // CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ | 105 #endif // CHROME_BROWSER_EXTENSIONS_GLOBAL_SHORTCUT_LISTENER_MAC_H_ |
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