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1 /* | |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #ifndef DeviceMotionDispatcher_h | |
32 #define DeviceMotionDispatcher_h | |
33 | |
34 #include "DeviceMotionData.h" | |
35 #include <public/WebDeviceMotionListener.h> | |
36 #include <wtf/RefPtr.h> | |
37 #include <wtf/Vector.h> | |
38 | |
39 namespace WebKit { | |
40 class WebDeviceMotionData; | |
41 } | |
42 | |
43 namespace WebCore { | |
44 | |
45 class DeviceMotionController; | |
46 class DeviceMotionData; | |
47 | |
48 // This class listens to device motion data and dispatches it to all | |
49 // interested controllers. | |
Peter Beverloo
2013/05/08 13:15:01
nit: s/interested/listening/.
timvolodine
2013/05/09 10:08:28
Done.
| |
50 class DeviceMotionDispatcher : public WebKit::WebDeviceMotionListener { | |
51 public: | |
52 static DeviceMotionDispatcher& shared(); | |
53 | |
54 void addController(DeviceMotionController*); | |
55 void removeController(DeviceMotionController*); | |
56 | |
57 // Note that the returned object is owned by this class. | |
58 // FIXME: make the return value const, see crbug.com/233174. | |
59 DeviceMotionData* latestDeviceMotionData(); | |
60 | |
61 // This method is called every time new motion data is available. | |
Peter Beverloo
2013/05/08 13:15:01
nit: Please call it "device motion data" here as w
timvolodine
2013/05/09 10:08:28
Done.
| |
62 void didChangeDeviceMotion(const WebKit::WebDeviceMotionData&) OVERRIDE; | |
63 | |
64 private: | |
65 DeviceMotionDispatcher(); | |
66 ~DeviceMotionDispatcher(); | |
67 | |
68 void startListening(); | |
69 void stopListening(); | |
70 | |
71 void compactifyControllers(); | |
72 | |
73 RefPtr<DeviceMotionData> m_lastDeviceMotionData; | |
74 Vector<DeviceMotionController*> m_controllers; | |
75 }; | |
76 | |
77 } // namespace WebCore | |
78 | |
79 #endif // DeviceMotionDispatcher_h | |
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