| /* |
| * 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, |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef KeyframeEffectModel_h |
| #define KeyframeEffectModel_h |
| |
| #include <memory> |
| #include "base/memory/scoped_refptr.h" |
| #include "core/CoreExport.h" |
| #include "core/animation/AnimationEffectReadOnly.h" |
| #include "core/animation/EffectModel.h" |
| #include "core/animation/InterpolationEffect.h" |
| #include "core/animation/PropertyHandle.h" |
| #include "core/animation/StringKeyframe.h" |
| #include "core/animation/TransitionKeyframe.h" |
| #include "platform/animation/TimingFunction.h" |
| #include "platform/heap/Handle.h" |
| #include "platform/wtf/HashMap.h" |
| #include "platform/wtf/HashSet.h" |
| #include "platform/wtf/Vector.h" |
| |
| namespace blink { |
| |
| class Element; |
| class KeyframeEffectModelTest; |
| |
| class CORE_EXPORT KeyframeEffectModelBase : public EffectModel { |
| public: |
| // FIXME: Implement accumulation. |
| |
| using PropertySpecificKeyframeVector = |
| Vector<scoped_refptr<Keyframe::PropertySpecificKeyframe>>; |
| class PropertySpecificKeyframeGroup { |
| public: |
| void AppendKeyframe(scoped_refptr<Keyframe::PropertySpecificKeyframe>); |
| const PropertySpecificKeyframeVector& Keyframes() const { |
| return keyframes_; |
| } |
| |
| private: |
| void RemoveRedundantKeyframes(); |
| bool AddSyntheticKeyframeIfRequired( |
| scoped_refptr<TimingFunction> zero_offset_easing); |
| |
| PropertySpecificKeyframeVector keyframes_; |
| |
| friend class KeyframeEffectModelBase; |
| }; |
| |
| bool IsReplaceOnly(); |
| |
| PropertyHandleSet Properties() const; |
| |
| using KeyframeVector = Vector<scoped_refptr<Keyframe>>; |
| const KeyframeVector& GetFrames() const { return keyframes_; } |
| bool HasFrames() const { return !keyframes_.IsEmpty(); } |
| void SetFrames(KeyframeVector& keyframes); |
| |
| CompositeOperation Composite() const { return composite_; } |
| void SetComposite(CompositeOperation composite) { composite_ = composite; } |
| |
| const PropertySpecificKeyframeVector& GetPropertySpecificKeyframes( |
| const PropertyHandle& property) const { |
| EnsureKeyframeGroups(); |
| return keyframe_groups_->at(property)->Keyframes(); |
| } |
| |
| using KeyframeGroupMap = |
| HashMap<PropertyHandle, std::unique_ptr<PropertySpecificKeyframeGroup>>; |
| const KeyframeGroupMap& GetPropertySpecificKeyframeGroups() const { |
| EnsureKeyframeGroups(); |
| return *keyframe_groups_; |
| } |
| |
| // EffectModel implementation. |
| bool Sample(int iteration, |
| double fraction, |
| double iteration_duration, |
| Vector<scoped_refptr<Interpolation>>&) const override; |
| |
| bool IsKeyframeEffectModel() const override { return true; } |
| |
| virtual bool IsStringKeyframeEffectModel() const { return false; } |
| virtual bool IsTransitionKeyframeEffectModel() const { return false; } |
| |
| bool HasSyntheticKeyframes() const { |
| EnsureKeyframeGroups(); |
| return has_synthetic_keyframes_; |
| } |
| |
| bool NeedsCompositorKeyframesSnapshot() const { |
| return needs_compositor_keyframes_snapshot_; |
| } |
| bool SnapshotNeutralCompositorKeyframes( |
| Element&, |
| const ComputedStyle& old_style, |
| const ComputedStyle& new_style, |
| const ComputedStyle* parent_style) const; |
| bool SnapshotAllCompositorKeyframes(Element&, |
| const ComputedStyle& base_style, |
| const ComputedStyle* parent_style) const; |
| |
| static Vector<double> GetComputedOffsets(const KeyframeVector& keyframes); |
| |
| bool Affects(const PropertyHandle& property) const override { |
| EnsureKeyframeGroups(); |
| return keyframe_groups_->Contains(property); |
| } |
| |
| bool IsTransformRelatedEffect() const override; |
| |
| virtual KeyframeEffectModelBase* Clone() = 0; |
| |
| protected: |
| KeyframeEffectModelBase(CompositeOperation composite, |
| scoped_refptr<TimingFunction> default_keyframe_easing) |
| : last_iteration_(0), |
| last_fraction_(std::numeric_limits<double>::quiet_NaN()), |
| last_iteration_duration_(0), |
| composite_(composite), |
| default_keyframe_easing_(std::move(default_keyframe_easing)), |
| has_synthetic_keyframes_(false), |
| needs_compositor_keyframes_snapshot_(true) {} |
| |
| // Lazily computes the groups of property-specific keyframes. |
| void EnsureKeyframeGroups() const; |
| void EnsureInterpolationEffectPopulated() const; |
| |
| KeyframeVector keyframes_; |
| // The spec describes filtering the normalized keyframes at sampling time |
| // to get the 'property-specific keyframes'. For efficiency, we cache the |
| // property-specific lists. |
| mutable std::unique_ptr<KeyframeGroupMap> keyframe_groups_; |
| mutable InterpolationEffect interpolation_effect_; |
| mutable int last_iteration_; |
| mutable double last_fraction_; |
| mutable double last_iteration_duration_; |
| CompositeOperation composite_; |
| scoped_refptr<TimingFunction> default_keyframe_easing_; |
| |
| mutable bool has_synthetic_keyframes_; |
| mutable bool needs_compositor_keyframes_snapshot_; |
| |
| friend class KeyframeEffectModelTest; |
| }; |
| |
| // Time independent representation of an Animation's keyframes. |
| template <class K> |
| class KeyframeEffectModel final : public KeyframeEffectModelBase { |
| public: |
| using KeyframeVector = Vector<scoped_refptr<K>>; |
| static KeyframeEffectModel<K>* Create( |
| const KeyframeVector& keyframes, |
| CompositeOperation composite = kCompositeReplace, |
| scoped_refptr<TimingFunction> default_keyframe_easing = nullptr) { |
| return new KeyframeEffectModel(keyframes, composite, |
| std::move(default_keyframe_easing)); |
| } |
| |
| KeyframeEffectModelBase* Clone() override { |
| KeyframeVector keyframes; |
| for (const auto& keyframe : GetFrames()) { |
| scoped_refptr<Keyframe> new_keyframe = keyframe->Clone(); |
| keyframes.push_back( |
| scoped_refptr<K>(static_cast<K*>(new_keyframe.get()))); |
| } |
| return Create(keyframes, composite_, default_keyframe_easing_); |
| } |
| |
| private: |
| KeyframeEffectModel(const KeyframeVector& keyframes, |
| CompositeOperation composite, |
| scoped_refptr<TimingFunction> default_keyframe_easing) |
| : KeyframeEffectModelBase(composite, std::move(default_keyframe_easing)) { |
| keyframes_.AppendVector(keyframes); |
| } |
| |
| virtual bool IsStringKeyframeEffectModel() const { return false; } |
| virtual bool IsTransitionKeyframeEffectModel() const { return false; } |
| }; |
| |
| using KeyframeVector = KeyframeEffectModelBase::KeyframeVector; |
| using PropertySpecificKeyframeVector = |
| KeyframeEffectModelBase::PropertySpecificKeyframeVector; |
| |
| using StringKeyframeEffectModel = KeyframeEffectModel<StringKeyframe>; |
| using StringKeyframeVector = StringKeyframeEffectModel::KeyframeVector; |
| using StringPropertySpecificKeyframeVector = |
| StringKeyframeEffectModel::PropertySpecificKeyframeVector; |
| |
| using TransitionKeyframeEffectModel = KeyframeEffectModel<TransitionKeyframe>; |
| using TransitionKeyframeVector = TransitionKeyframeEffectModel::KeyframeVector; |
| using TransitionPropertySpecificKeyframeVector = |
| TransitionKeyframeEffectModel::PropertySpecificKeyframeVector; |
| |
| DEFINE_TYPE_CASTS(KeyframeEffectModelBase, |
| EffectModel, |
| value, |
| value->IsKeyframeEffectModel(), |
| value.IsKeyframeEffectModel()); |
| DEFINE_TYPE_CASTS(StringKeyframeEffectModel, |
| KeyframeEffectModelBase, |
| value, |
| value->IsStringKeyframeEffectModel(), |
| value.IsStringKeyframeEffectModel()); |
| DEFINE_TYPE_CASTS(TransitionKeyframeEffectModel, |
| KeyframeEffectModelBase, |
| value, |
| value->IsTransitionKeyframeEffectModel(), |
| value.IsTransitionKeyframeEffectModel()); |
| |
| inline const StringKeyframeEffectModel* ToStringKeyframeEffectModel( |
| const EffectModel* base) { |
| return ToStringKeyframeEffectModel(ToKeyframeEffectModelBase(base)); |
| } |
| |
| inline StringKeyframeEffectModel* ToStringKeyframeEffectModel( |
| EffectModel* base) { |
| return ToStringKeyframeEffectModel(ToKeyframeEffectModelBase(base)); |
| } |
| |
| inline TransitionKeyframeEffectModel* ToTransitionKeyframeEffectModel( |
| EffectModel* base) { |
| return ToTransitionKeyframeEffectModel(ToKeyframeEffectModelBase(base)); |
| } |
| |
| template <> |
| inline bool KeyframeEffectModel<StringKeyframe>::IsStringKeyframeEffectModel() |
| const { |
| return true; |
| } |
| |
| template <> |
| inline bool KeyframeEffectModel< |
| TransitionKeyframe>::IsTransitionKeyframeEffectModel() const { |
| return true; |
| } |
| |
| } // namespace blink |
| |
| #endif // KeyframeEffectModel_h |