1/* 2 * Copyright (C) 2014 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. 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 APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef HIDGamepadProvider_h 27#define HIDGamepadProvider_h 28 29#if ENABLE(GAMEPAD) 30 31#include "GamepadProvider.h" 32#include "HIDGamepad.h" 33#include "Timer.h" 34#include <IOKit/hid/IOHIDManager.h> 35#include <wtf/Deque.h> 36#include <wtf/HashMap.h> 37#include <wtf/HashSet.h> 38#include <wtf/NeverDestroyed.h> 39#include <wtf/RetainPtr.h> 40 41namespace WebCore { 42 43class GamepadProviderClient; 44 45class HIDGamepadProvider : public GamepadProvider { 46 WTF_MAKE_NONCOPYABLE(HIDGamepadProvider); 47 friend class NeverDestroyed<HIDGamepadProvider>; 48public: 49 static HIDGamepadProvider& shared(); 50 51 virtual void startMonitoringGamepads(GamepadProviderClient*); 52 virtual void stopMonitoringGamepads(GamepadProviderClient*); 53 virtual const Vector<PlatformGamepad*>& platformGamepads() { return m_gamepadVector; } 54 55 void deviceAdded(IOHIDDeviceRef); 56 void deviceRemoved(IOHIDDeviceRef); 57 void valuesChanged(IOHIDValueRef); 58 59private: 60 HIDGamepadProvider(); 61 62 std::unique_ptr<HIDGamepad> removeGamepadForDevice(IOHIDDeviceRef); 63 64 void openAndScheduleManager(); 65 void closeAndUnscheduleManager(); 66 67 void connectionDelayTimerFired(Timer<HIDGamepadProvider>&); 68 void inputNotificationTimerFired(Timer<HIDGamepadProvider>&); 69 70 unsigned indexForNewlyConnectedDevice(); 71 72 Vector<PlatformGamepad*> m_gamepadVector; 73 HashMap<IOHIDDeviceRef, std::unique_ptr<HIDGamepad>> m_gamepadMap; 74 75 RetainPtr<IOHIDManagerRef> m_manager; 76 77 HashSet<GamepadProviderClient*> m_clients; 78 bool m_shouldDispatchCallbacks; 79 80 Timer<HIDGamepadProvider> m_connectionDelayTimer; 81 Timer<HIDGamepadProvider> m_inputNotificationTimer; 82}; 83 84} // namespace WebCore 85 86#endif // ENABLE(GAMEPAD) 87#endif // HIDGamepadProvider_h 88