| /* |
| * 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 CompositorAnimations_h |
| #define CompositorAnimations_h |
| |
| #include "core/animation/AnimationEffect.h" |
| #include "core/animation/Timing.h" |
| #include "core/platform/animation/TimingFunction.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| class Element; |
| |
| // Given an input timing function between keyframe at 0 and keyframe at 1.0, we |
| // need a timing function such that the behavior with the keyframes swapped is |
| // equivalent to reversing time with the input timing function and keyframes. |
| // This means flipping the timing function about x=0.5 and about y=0.5. |
| // FIXME: Remove once the Compositor natively understands reversing time. |
| class CompositorAnimationsTimingFunctionReverser { |
| public: |
| static PassRefPtr<TimingFunction> reverse(const LinearTimingFunction* timefunc); |
| static PassRefPtr<TimingFunction> reverse(const CubicBezierTimingFunction* timefunc); |
| static PassRefPtr<TimingFunction> reverse(const ChainedTimingFunction* timefunc); |
| static PassRefPtr<TimingFunction> reverse(const TimingFunction* timefunc); |
| }; |
| |
| class CompositorAnimations { |
| public: |
| static CompositorAnimations* instance() { return instance(0); } |
| static void setInstanceForTesting(CompositorAnimations* newInstance) { instance(newInstance); } |
| |
| virtual bool isCandidateForAnimationOnCompositor(const Timing&, const AnimationEffect&); |
| virtual bool canStartAnimationOnCompositor(const Element&); |
| // FIXME: This should return void. We should know ahead of time whether these animations can be started. |
| virtual bool startAnimationOnCompositor(const Element&, const Timing&, const AnimationEffect&, Vector<int>& startedAnimationIds); |
| virtual void cancelAnimationOnCompositor(const Element&, int id); |
| virtual void pauseAnimationForTestingOnCompositor(const Element&, int id, double pauseTime); |
| |
| protected: |
| CompositorAnimations() { } |
| |
| private: |
| static CompositorAnimations* instance(CompositorAnimations* newInstance) |
| { |
| static CompositorAnimations* instance = new CompositorAnimations(); |
| if (newInstance) { |
| instance = newInstance; |
| } |
| return instance; |
| } |
| }; |
| |
| } // namespace WebCore |
| |
| #endif |