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/*
* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
* (C) 2000 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include "CompositeOperation.h"
#include "KeyframeInterpolation.h"
#include "RenderStyle.h"
#include "TimelineRange.h"
#include "WebAnimationTypes.h"
#include <wtf/Vector.h>
#include <wtf/HashSet.h>
#include <wtf/text/AtomString.h>
#include <wtf/text/AtomStringHash.h>
namespace WebCore {
class KeyframeEffect;
class StyleProperties;
class TimingFunction;
namespace Style {
class Resolver;
}
class BlendingKeyframe final : public KeyframeInterpolation::Keyframe {
public:
struct Offset {
SingleTimelineRange::Name name;
double value;
Offset(double value)
: name(SingleTimelineRange::Name::Omitted)
, value(value)
{
}
Offset(SingleTimelineRange::Name name, double value)
: name(name)
, value(value)
{
}
};
BlendingKeyframe(Offset&&, std::unique_ptr<RenderStyle>&&);
BlendingKeyframe(const BlendingKeyframe&);
BlendingKeyframe(BlendingKeyframe&&) = default;
BlendingKeyframe& operator=(BlendingKeyframe&&) = default;
// KeyframeInterpolation::Keyframe
double offset() const final { return m_computedOffset; }
std::optional<CompositeOperation> compositeOperation() const final { return m_compositeOperation; }
bool animatesProperty(KeyframeInterpolation::Property) const final;
bool isBlendingKeyframe() const final { return true; }
void addProperty(const AnimatableCSSProperty&);
const UncheckedKeyHashSet<AnimatableCSSProperty>& properties() const { return m_properties; }
const Offset& specifiedOffset() const { return m_specifiedOffset; }
void setComputedOffset(double offset) { m_computedOffset = offset; }
bool usesRangeOffset() const;
const RenderStyle* style() const { return m_style.get(); }
void setStyle(std::unique_ptr<RenderStyle>&& style) { m_style = WTFMove(style); }
TimingFunction* timingFunction() const { return m_timingFunction.get(); }
void setTimingFunction(const RefPtr<TimingFunction>& timingFunction) { m_timingFunction = timingFunction; }
void setCompositeOperation(std::optional<CompositeOperation> op) { m_compositeOperation = op; }
bool containsDirectionAwareProperty() const { return m_containsDirectionAwareProperty; }
void setContainsDirectionAwareProperty(bool containsDirectionAwareProperty) { m_containsDirectionAwareProperty = containsDirectionAwareProperty; }
private:
Offset m_specifiedOffset;
double m_computedOffset { std::numeric_limits<double>::quiet_NaN() };
UncheckedKeyHashSet<AnimatableCSSProperty> m_properties; // The properties specified in this keyframe.
std::unique_ptr<RenderStyle> m_style;
RefPtr<TimingFunction> m_timingFunction;
std::optional<CompositeOperation> m_compositeOperation;
bool m_containsDirectionAwareProperty { false };
};
class BlendingKeyframes {
public:
explicit BlendingKeyframes(const AtomString& animationName)
: m_animationName(animationName)
{
}
~BlendingKeyframes();
BlendingKeyframes& operator=(BlendingKeyframes&&) = default;
bool operator==(const BlendingKeyframes&) const;
const AtomString& animationName() const { return m_animationName; }
void insert(BlendingKeyframe&&);
void addProperty(const AnimatableCSSProperty&);
bool containsProperty(const AnimatableCSSProperty&) const;
const UncheckedKeyHashSet<AnimatableCSSProperty>& properties() const { return m_properties; }
bool containsAnimatableCSSProperty() const;
bool containsDirectionAwareProperty() const;
void clear();
bool isEmpty() const { return m_keyframes.isEmpty(); }
size_t size() const { return m_keyframes.size(); }
const BlendingKeyframe& operator[](size_t index) const { return m_keyframes[index]; }
void copyKeyframes(const BlendingKeyframes&);
bool hasImplicitKeyframes() const;
bool hasImplicitKeyframeForProperty(AnimatableCSSProperty) const;
void fillImplicitKeyframes(const KeyframeEffect&, const RenderStyle& elementStyle);
auto begin() const { return m_keyframes.begin(); }
auto end() const { return m_keyframes.end(); }
bool usesContainerUnits() const;
bool usesRelativeFontWeight() const;
bool hasCSSVariableReferences() const;
bool hasColorSetToCurrentColor() const;
bool hasPropertySetToCurrentColor() const;
const UncheckedKeyHashSet<AnimatableCSSProperty>& propertiesSetToInherit() const;
void updatePropertiesMetadata(const StyleProperties&);
bool hasWidthDependentTransform() const { return m_hasWidthDependentTransform; }
bool hasHeightDependentTransform() const { return m_hasHeightDependentTransform; }
bool hasDiscreteTransformInterval() const { return m_hasDiscreteTransformInterval; }
bool hasExplicitlyInheritedKeyframeProperty() const { return m_hasExplicitlyInheritedKeyframeProperty; }
bool usesAnchorFunctions() const { return m_usesAnchorFunctions; }
bool hasKeyframeNotUsingRangeOffset() const { return m_hasKeyframeNotUsingRangeOffset; }
void updatedComputedOffsets(NOESCAPE const Function<double(const BlendingKeyframe::Offset&)>&);
private:
void analyzeKeyframe(const BlendingKeyframe&);
AtomString m_animationName;
Vector<BlendingKeyframe> m_keyframes; // Kept sorted by key.
UncheckedKeyHashSet<AnimatableCSSProperty> m_properties; // The properties being animated.
UncheckedKeyHashSet<AnimatableCSSProperty> m_explicitToProperties; // The properties with an explicit value for the 100% keyframe.
UncheckedKeyHashSet<AnimatableCSSProperty> m_explicitFromProperties; // The properties with an explicit value for the 0% keyframe.
UncheckedKeyHashSet<AnimatableCSSProperty> m_propertiesSetToInherit;
UncheckedKeyHashSet<AnimatableCSSProperty> m_propertiesSetToCurrentColor;
bool m_usesRelativeFontWeight { false };
bool m_containsCSSVariableReferences { false };
bool m_usesAnchorFunctions { false };
bool m_hasWidthDependentTransform { false };
bool m_hasHeightDependentTransform { false };
bool m_hasDiscreteTransformInterval { false };
bool m_hasExplicitlyInheritedKeyframeProperty { false };
bool m_hasKeyframeNotUsingRangeOffset { false };
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_KEYFRAME_INTERPOLATION_KEYFRAME(BlendingKeyframe, isBlendingKeyframe());
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