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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 EffectStack_h
#define EffectStack_h
#include "core/CoreExport.h"
#include "core/animation/Animation.h"
#include "core/animation/EffectModel.h"
#include "core/animation/KeyframeEffect.h"
#include "core/animation/PropertyHandle.h"
#include "core/animation/SampledEffect.h"
#include "platform/geometry/FloatBox.h"
#include "wtf/HashSet.h"
#include "wtf/Vector.h"
namespace blink {
using ActiveInterpolationsMap = HashMap<PropertyHandle, ActiveInterpolations>;
class InertEffect;
// Represents the order in which a sequence of SampledEffects should apply.
// This sequence is broken down to per PropertyHandle granularity.
class CORE_EXPORT EffectStack {
DISALLOW_NEW();
WTF_MAKE_NONCOPYABLE(EffectStack);
public:
EffectStack();
void add(SampledEffect* sampledEffect) {
m_sampledEffects.push_back(sampledEffect);
}
bool isEmpty() const { return m_sampledEffects.isEmpty(); }
bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
using PropertyHandleFilter = bool (*)(const PropertyHandle&);
bool affectsProperties(PropertyHandleFilter) const;
static ActiveInterpolationsMap activeInterpolations(
EffectStack*,
const HeapVector<Member<const InertEffect>>* newAnimations,
const HeapHashSet<Member<const Animation>>* suppressedAnimations,
KeyframeEffectReadOnly::Priority,
PropertyHandleFilter = nullptr);
bool getAnimatedBoundingBox(FloatBox&, CSSPropertyID) const;
DECLARE_TRACE();
private:
void removeRedundantSampledEffects();
// Effects sorted by priority. Lower priority at the start of the list.
HeapVector<Member<SampledEffect>> m_sampledEffects;
friend class AnimationEffectStackTest;
};
} // namespace blink
#endif // EffectStack_h
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