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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_ | 5 #ifndef UI_EVENTS_DEVICES_X11_DEVICE_LIST_CACHE_X11_H_ |
6 #define UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_ | 6 #define UI_EVENTS_DEVICES_X11_DEVICE_LIST_CACHE_X11_H_ |
7 | 7 |
8 #include <X11/extensions/XInput.h> | 8 #include <X11/extensions/XInput.h> |
9 #include <X11/extensions/XInput2.h> | 9 #include <X11/extensions/XInput2.h> |
10 | 10 |
11 #include <map> | 11 #include <map> |
12 | 12 |
13 #include "base/basictypes.h" | 13 #include "base/basictypes.h" |
14 #include "ui/events/events_base_export.h" | 14 #include "ui/events/devices/events_devices_export.h" |
15 | 15 |
16 template <typename T> struct DefaultSingletonTraits; | 16 template <typename T> struct DefaultSingletonTraits; |
17 | 17 |
18 typedef struct _XDisplay Display; | 18 typedef struct _XDisplay Display; |
19 | 19 |
20 template <typename T> | 20 template <typename T> |
21 struct DeviceList { | 21 struct DeviceList { |
22 DeviceList() : devices(NULL), count(0) { | 22 DeviceList() : devices(NULL), count(0) { |
23 } | 23 } |
24 T& operator[] (int x) { | 24 T& operator[] (int x) { |
25 return devices[x]; | 25 return devices[x]; |
26 } | 26 } |
27 const T& operator[](int x) const { return devices[x]; } | 27 const T& operator[](int x) const { return devices[x]; } |
28 T* devices; | 28 T* devices; |
29 int count; | 29 int count; |
30 }; | 30 }; |
31 | 31 |
32 typedef struct DeviceList<XDeviceInfo> XDeviceList; | 32 typedef struct DeviceList<XDeviceInfo> XDeviceList; |
33 typedef struct DeviceList<XIDeviceInfo> XIDeviceList; | 33 typedef struct DeviceList<XIDeviceInfo> XIDeviceList; |
34 | 34 |
35 namespace ui { | 35 namespace ui { |
36 | 36 |
37 // A class to cache the current XInput device list. This minimized the | 37 // A class to cache the current XInput device list. This minimized the |
38 // round-trip time to the X server whenever such a device list is needed. The | 38 // round-trip time to the X server whenever such a device list is needed. The |
39 // update function will be called on each incoming XI_HierarchyChanged event. | 39 // update function will be called on each incoming XI_HierarchyChanged event. |
40 class EVENTS_BASE_EXPORT DeviceListCacheX { | 40 class EVENTS_DEVICES_EXPORT DeviceListCacheX11 { |
41 public: | 41 public: |
42 static DeviceListCacheX* GetInstance(); | 42 static DeviceListCacheX11* GetInstance(); |
43 | 43 |
44 void UpdateDeviceList(Display* display); | 44 void UpdateDeviceList(Display* display); |
45 | 45 |
46 // Returns the list of devices associated with |display|. Uses the old X11 | 46 // Returns the list of devices associated with |display|. Uses the old X11 |
47 // protocol to get the list of the devices. | 47 // protocol to get the list of the devices. |
48 const XDeviceList& GetXDeviceList(Display* display); | 48 const XDeviceList& GetXDeviceList(Display* display); |
49 | 49 |
50 // Returns the list of devices associated with |display|. Uses the newer | 50 // Returns the list of devices associated with |display|. Uses the newer |
51 // XINPUT2 protocol to get the list of devices. Before making this call, make | 51 // XINPUT2 protocol to get the list of devices. Before making this call, make |
52 // sure that XInput2 support is available (e.g. by calling | 52 // sure that XInput2 support is available (e.g. by calling |
53 // IsXInput2Available()). | 53 // IsXInput2Available()). |
54 const XIDeviceList& GetXI2DeviceList(Display* display); | 54 const XIDeviceList& GetXI2DeviceList(Display* display); |
55 | 55 |
56 private: | 56 private: |
57 friend struct DefaultSingletonTraits<DeviceListCacheX>; | 57 friend struct DefaultSingletonTraits<DeviceListCacheX11>; |
58 | 58 |
59 DeviceListCacheX(); | 59 DeviceListCacheX11(); |
60 ~DeviceListCacheX(); | 60 ~DeviceListCacheX11(); |
61 | 61 |
62 std::map<Display*, XDeviceList> x_dev_list_map_; | 62 std::map<Display*, XDeviceList> x_dev_list_map_; |
63 std::map<Display*, XIDeviceList> xi_dev_list_map_; | 63 std::map<Display*, XIDeviceList> xi_dev_list_map_; |
64 | 64 |
65 DISALLOW_COPY_AND_ASSIGN(DeviceListCacheX); | 65 DISALLOW_COPY_AND_ASSIGN(DeviceListCacheX11); |
66 }; | 66 }; |
67 | 67 |
68 } // namespace ui | 68 } // namespace ui |
69 | 69 |
70 #endif // UI_EVENTS_X_DEVICE_LIST_CACHE_X_H_ | 70 #endif // UI_EVENTS_DEVICES_X11_DEVICE_LIST_CACHE_X11_H_ |
71 | 71 |
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