1/* 2 * Copyright (C) 2011 Google 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'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 */ 25 26#ifndef ScriptedAnimationController_h 27#define ScriptedAnimationController_h 28 29#if ENABLE(REQUEST_ANIMATION_FRAME) 30#include "DOMTimeStamp.h" 31#if USE(REQUEST_ANIMATION_FRAME_TIMER) 32#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) 33#include "Chrome.h" 34#include "ChromeClient.h" 35#include "DisplayRefreshMonitorClient.h" 36#endif 37#include "Timer.h" 38#endif 39#include "PlatformScreen.h" 40#include <wtf/RefCounted.h> 41#include <wtf/RefPtr.h> 42#include <wtf/Vector.h> 43 44namespace WebCore { 45 46class Document; 47class RequestAnimationFrameCallback; 48 49class ScriptedAnimationController : public RefCounted<ScriptedAnimationController> 50#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) 51 , public DisplayRefreshMonitorClient 52#endif 53{ 54public: 55 static PassRefPtr<ScriptedAnimationController> create(Document* document, PlatformDisplayID displayID) 56 { 57 return adoptRef(new ScriptedAnimationController(document, displayID)); 58 } 59 ~ScriptedAnimationController(); 60 void clearDocumentPointer() { m_document = 0; } 61 62 typedef int CallbackId; 63 64 CallbackId registerCallback(PassRefPtr<RequestAnimationFrameCallback>); 65 void cancelCallback(CallbackId); 66 void serviceScriptedAnimations(double monotonicTimeNow); 67 68 void suspend(); 69 void resume(); 70 void setThrottled(bool); 71 72 void windowScreenDidChange(PlatformDisplayID); 73 74private: 75 ScriptedAnimationController(Document*, PlatformDisplayID); 76 77 typedef Vector<RefPtr<RequestAnimationFrameCallback>> CallbackList; 78 CallbackList m_callbacks; 79 80 Document* m_document; 81 CallbackId m_nextCallbackId; 82 int m_suspendCount; 83 84 void scheduleAnimation(); 85 86#if USE(REQUEST_ANIMATION_FRAME_TIMER) 87 void animationTimerFired(Timer<ScriptedAnimationController>&); 88 Timer<ScriptedAnimationController> m_animationTimer; 89 double m_lastAnimationFrameTimeMonotonic; 90 91#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR) 92 // Override for DisplayRefreshMonitorClient 93 virtual void displayRefreshFired(double timestamp) override; 94 virtual PassRefPtr<DisplayRefreshMonitor> createDisplayRefreshMonitor(PlatformDisplayID) const override; 95 96 bool m_isUsingTimer; 97 bool m_isThrottled; 98#endif 99#endif 100}; 101 102} 103 104#endif // ENABLE(REQUEST_ANIMATION_FRAME) 105 106#endif // ScriptedAnimationController_h 107