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 #include "wtf/RefCounted.h" 30 #include "wtf/RefPtr.h" 31 #include "wtf/Vector.h" 32 33 namespace WebCore { 34 35 class Document; 36 class RequestAnimationFrameCallback; 37 38 class ScriptedAnimationController : public RefCounted<ScriptedAnimationController> 39 { 40 public: 41 static PassRefPtr<ScriptedAnimationController> create(Document* document) 42 { 43 return adoptRef(new ScriptedAnimationController(document)); 44 } 45 ~ScriptedAnimationController(); 46 void clearDocumentPointer() { m_document = 0; } 47 48 typedef int CallbackId; 49 50 CallbackId registerCallback(PassRefPtr<RequestAnimationFrameCallback>); 51 void cancelCallback(CallbackId); 52 void serviceScriptedAnimations(double monotonicTimeNow); 53 54 void suspend(); 55 void resume(); 56 57 private: 58 explicit ScriptedAnimationController(Document*); 59 60 typedef Vector<RefPtr<RequestAnimationFrameCallback> > CallbackList; 61 CallbackList m_callbacks; 62 63 Document* m_document; 64 CallbackId m_nextCallbackId; 65 int m_suspendCount; 66 67 void scheduleAnimation(); 68 }; 69 70 } 71 72 #endif // ScriptedAnimationController_h 73
