2 * Copyright 2010, The Android Open Source Project
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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.
26 #ifndef DeviceOrientationController_h
27 #define DeviceOrientationController_h
29 #include "DOMWindow.h"
32 #include <wtf/HashCountedSet.h>
36 class DeviceOrientation;
37 class DeviceOrientationClient;
40 class DeviceOrientationController {
42 DeviceOrientationController(Page*, DeviceOrientationClient*);
43 ~DeviceOrientationController();
45 void addListener(DOMWindow*);
46 void removeListener(DOMWindow*);
47 void removeAllListeners(DOMWindow*);
49 void didChangeDeviceOrientation(DeviceOrientation*);
51 bool isActive() { return !m_listeners.isEmpty(); }
54 void timerFired(Timer<DeviceOrientationController>*);
57 DeviceOrientationClient* m_client;
58 typedef HashCountedSet<RefPtr<DOMWindow> > ListenersCountedSet;
59 ListenersCountedSet m_listeners;
60 typedef HashSet<RefPtr<DOMWindow> > ListenersSet;
61 ListenersSet m_newListeners;
62 Timer<DeviceOrientationController> m_timer;
65 } // namespace WebCore
67 #endif // DeviceOrientationController_h