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/*
* Copyright (C) 2007 Apple 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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Apple Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 AnimationController_h
#define AnimationController_h
#include "AnimationBase.h"
#include "CSSPropertyNames.h"
#include <wtf/Forward.h>
namespace WebCore {
class AnimationControllerPrivate;
class Document;
class Element;
class Frame;
class LayoutRect;
class RenderElement;
class RenderStyle;
class AnimationController {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit AnimationController(Frame&);
~AnimationController();
void cancelAnimations(RenderElement&);
bool updateAnimations(RenderElement&, RenderStyle& newStyle, Ref<RenderStyle>& animatedStyle);
PassRefPtr<RenderStyle> getAnimatedStyleForRenderer(RenderElement&);
// If possible, compute the visual extent of any transform animation on the given renderer
// using the given rect, returning the result in the rect. Return false if there is some
// transform animation but we were unable to cheaply compute its affect on the extent.
bool computeExtentOfAnimation(RenderElement&, LayoutRect&) const;
// This is called when an accelerated animation or transition has actually started to animate.
void notifyAnimationStarted(RenderElement&, double startTime);
WEBCORE_EXPORT bool pauseAnimationAtTime(RenderElement*, const AtomicString& name, double t); // To be used only for testing
WEBCORE_EXPORT bool pauseTransitionAtTime(RenderElement*, const String& property, double t); // To be used only for testing
WEBCORE_EXPORT unsigned numberOfActiveAnimations(Document*) const; // To be used only for testing
bool isRunningAnimationOnRenderer(RenderElement&, CSSPropertyID, AnimationBase::RunningState) const;
bool isRunningAcceleratedAnimationOnRenderer(RenderElement&, CSSPropertyID, AnimationBase::RunningState) const;
WEBCORE_EXPORT bool isSuspended() const;
WEBCORE_EXPORT void suspendAnimations();
WEBCORE_EXPORT void resumeAnimations();
#if ENABLE(REQUEST_ANIMATION_FRAME)
void serviceAnimations();
#endif
void suspendAnimationsForDocument(Document*);
void resumeAnimationsForDocument(Document*);
void startAnimationsIfNotSuspended(Document*);
void beginAnimationUpdate();
void endAnimationUpdate();
WEBCORE_EXPORT bool allowsNewAnimationsWhileSuspended() const;
WEBCORE_EXPORT void setAllowsNewAnimationsWhileSuspended(bool);
static bool supportsAcceleratedAnimationOfProperty(CSSPropertyID);
#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
bool wantsScrollUpdates() const;
void scrollWasUpdated();
#endif
private:
const std::unique_ptr<AnimationControllerPrivate> m_data;
};
class AnimationUpdateBlock {
public:
AnimationUpdateBlock(AnimationController* animationController)
: m_animationController(animationController)
{
if (m_animationController)
m_animationController->beginAnimationUpdate();
}
~AnimationUpdateBlock()
{
if (m_animationController)
m_animationController->endAnimationUpdate();
}
AnimationController* m_animationController;
};
} // namespace WebCore
#endif // AnimationController_h
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