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/*
* 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 CSSAnimations_h
#define CSSAnimations_h
#include "core/animation/InertAnimation.h"
#include "core/animation/css/CSSAnimationUpdate.h"
#include "core/css/StylePropertySet.h"
#include "core/dom/Document.h"
#include "wtf/HashMap.h"
#include "wtf/text/AtomicString.h"
namespace blink {
class CSSTransitionData;
class Element;
class StylePropertyShorthand;
class StyleResolver;
class StyleRuleKeyframes;
class CSSAnimations final {
WTF_MAKE_NONCOPYABLE(CSSAnimations);
DISALLOW_ALLOCATION();
public:
CSSAnimations();
const AtomicString getAnimationNameForInspector(const AnimationPlayer&);
static const StylePropertyShorthand& animatableProperties();
static bool isAllowedAnimation(CSSPropertyID);
static PassOwnPtrWillBeRawPtr<CSSAnimationUpdate> calculateUpdate(const Element* animatingElement, Element&, const RenderStyle&, RenderStyle* parentStyle, StyleResolver*);
void setPendingUpdate(PassOwnPtrWillBeRawPtr<CSSAnimationUpdate> update) { m_pendingUpdate = update; }
void maybeApplyPendingUpdate(Element*);
bool isEmpty() const { return m_animations.isEmpty() && m_transitions.isEmpty() && !m_pendingUpdate; }
void cancel();
void trace(Visitor*);
private:
struct RunningTransition {
ALLOW_ONLY_INLINE_ALLOCATION();
public:
void trace(Visitor* visitor)
{
visitor->trace(player);
visitor->trace(from);
visitor->trace(to);
}
RefPtrWillBeMember<AnimationPlayer> player;
RawPtrWillBeMember<const AnimatableValue> from;
RawPtrWillBeMember<const AnimatableValue> to;
};
using AnimationMap = WillBeHeapHashMap<AtomicString, RefPtrWillBeMember<AnimationPlayer>>;
AnimationMap m_animations;
using TransitionMap = WillBeHeapHashMap<CSSPropertyID, RunningTransition>;
TransitionMap m_transitions;
OwnPtrWillBeMember<CSSAnimationUpdate> m_pendingUpdate;
WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<Interpolation>> m_previousActiveInterpolationsForAnimations;
static void calculateAnimationUpdate(CSSAnimationUpdate*, const Element* animatingElement, Element&, const RenderStyle&, RenderStyle* parentStyle, StyleResolver*);
static void calculateTransitionUpdate(CSSAnimationUpdate*, const Element* animatingElement, const RenderStyle&);
static void calculateTransitionUpdateForProperty(CSSPropertyID, CSSPropertyID eventId, const CSSTransitionData&, size_t transitionIndex, const RenderStyle& oldStyle, const RenderStyle&, const TransitionMap* activeTransitions, CSSAnimationUpdate*, const Element*);
static void calculateAnimationActiveInterpolations(CSSAnimationUpdate*, const Element* animatingElement, double timelineCurrentTime);
static void calculateTransitionActiveInterpolations(CSSAnimationUpdate*, const Element* animatingElement, double timelineCurrentTime);
class AnimationEventDelegate final : public AnimationNode::EventDelegate {
public:
AnimationEventDelegate(Element* target, const AtomicString& name)
: m_target(target)
, m_name(name)
, m_previousPhase(AnimationNode::PhaseNone)
, m_previousIteration(nullValue())
{
}
virtual bool requiresIterationEvents(const AnimationNode&) override;
virtual void onEventCondition(const AnimationNode&) override;
virtual void trace(Visitor*) override;
private:
void maybeDispatch(Document::ListenerType, const AtomicString& eventName, double elapsedTime);
RawPtrWillBeMember<Element> m_target;
const AtomicString m_name;
AnimationNode::Phase m_previousPhase;
double m_previousIteration;
};
class TransitionEventDelegate final : public AnimationNode::EventDelegate {
public:
TransitionEventDelegate(Element* target, CSSPropertyID property)
: m_target(target)
, m_property(property)
, m_previousPhase(AnimationNode::PhaseNone)
{
}
virtual bool requiresIterationEvents(const AnimationNode&) override { return false; }
virtual void onEventCondition(const AnimationNode&) override;
virtual void trace(Visitor*) override;
private:
RawPtrWillBeMember<Element> m_target;
const CSSPropertyID m_property;
AnimationNode::Phase m_previousPhase;
};
};
} // namespace blink
#endif
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