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1 /*
2  * Copyright 2010, The Android Open Source Project
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *  * Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  *  * Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef DeviceOrientationClientAndroid_h
27 #define DeviceOrientationClientAndroid_h
28 
29 #include <DeviceOrientationClient.h>
30 
31 namespace WebCore {
32 class DeviceOrientationController;
33 }
34 
35 namespace android {
36 
37 class WebViewCore;
38 
39 // The Android implementation of DeviceOrientationClient. Acts as a proxy to
40 // the real or mock impl, which is owned by the WebViewCore.
41 class DeviceOrientationClientAndroid : public WebCore::DeviceOrientationClient {
42 public:
43     DeviceOrientationClientAndroid();
44 
45     void setWebViewCore(WebViewCore*);
46 
47     // DeviceOrientationClient methods
48     virtual void setController(WebCore::DeviceOrientationController*);
49     virtual void startUpdating();
50     virtual void stopUpdating();
51     virtual WebCore::DeviceOrientation* lastOrientation() const;
52     virtual void deviceOrientationControllerDestroyed();
53 
54 private:
55     WebCore::DeviceOrientationClient* client() const;
56 
57     WebViewCore* m_webViewCore;
58     WebCore::DeviceOrientationController* m_controller;
59     // Lazily obtained cache of the client owned by the WebViewCore.
60     mutable WebCore::DeviceOrientationClient* m_client;
61 };
62 
63 } // namespace android
64 
65 #endif // DeviceOrientationClientAndroid_h
66