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 GamepadManager_h 27#define GamepadManager_h 28 29#if ENABLE(GAMEPAD) 30 31#include "GamepadProviderClient.h" 32#include <wtf/HashSet.h> 33#include <wtf/NeverDestroyed.h> 34#include <wtf/RefPtr.h> 35#include <wtf/text/AtomicString.h> 36 37namespace WebCore { 38 39class DOMWindow; 40class Gamepad; 41class NavigatorGamepad; 42 43class GamepadManager : public GamepadProviderClient { 44 WTF_MAKE_NONCOPYABLE(GamepadManager); 45 friend class NeverDestroyed<GamepadManager>; 46public: 47 static GamepadManager& shared(); 48 49 virtual void platformGamepadConnected(PlatformGamepad&) override final; 50 virtual void platformGamepadDisconnected(PlatformGamepad&) override final; 51 virtual void platformGamepadInputActivity() override final; 52 53 void registerNavigator(NavigatorGamepad*); 54 void unregisterNavigator(NavigatorGamepad*); 55 void registerDOMWindow(DOMWindow*); 56 void unregisterDOMWindow(DOMWindow*); 57 58private: 59 GamepadManager(); 60 61 void makeGamepadVisible(PlatformGamepad&, HashSet<NavigatorGamepad*>&, HashSet<DOMWindow*>&); 62 void dispatchGamepadEvent(const WTF::AtomicString& eventName, PlatformGamepad&); 63 64 void maybeStartMonitoringGamepads(); 65 void maybeStopMonitoringGamepads(); 66 67 bool m_isMonitoringGamepads; 68 69 HashSet<NavigatorGamepad*> m_navigators; 70 HashSet<NavigatorGamepad*> m_gamepadBlindNavigators; 71 HashSet<DOMWindow*> m_domWindows; 72 HashSet<DOMWindow*> m_gamepadBlindDOMWindows; 73}; 74 75} // namespace WebCore 76 77#endif // ENABLE(GAMEPAD) 78#endif // GamepadManager_h 79