| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef DeviceMotionDispatcher_h |
| #define DeviceMotionDispatcher_h |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "core/frame/PlatformEventDispatcher.h" |
| #include "platform/heap/Handle.h" |
| #include "public/platform/modules/device_orientation/WebDeviceMotionListener.h" |
| |
| namespace device { |
| class MotionData; |
| } |
| |
| namespace blink { |
| |
| class DeviceMotionData; |
| |
| // This class listens to device motion data and notifies all registered |
| // controllers. |
| class DeviceMotionDispatcher final |
| : public GarbageCollectedFinalized<DeviceMotionDispatcher>, |
| public PlatformEventDispatcher, |
| public WebDeviceMotionListener { |
| USING_GARBAGE_COLLECTED_MIXIN(DeviceMotionDispatcher); |
| |
| public: |
| static DeviceMotionDispatcher& Instance(); |
| ~DeviceMotionDispatcher() override; |
| |
| // Note that the returned object is owned by this class. |
| const DeviceMotionData* LatestDeviceMotionData(); |
| |
| // Inherited from WebDeviceMotionListener. |
| void DidChangeDeviceMotion(const device::MotionData&) override; |
| |
| virtual void Trace(blink::Visitor*); |
| |
| private: |
| DeviceMotionDispatcher(); |
| |
| // Inherited from PlatformEventDispatcher. |
| void StartListening() override; |
| void StopListening() override; |
| |
| Member<DeviceMotionData> last_device_motion_data_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // DeviceMotionDispatcher_h |