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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef InvalidatableInterpolation_h | |
6 #define InvalidatableInterpolation_h | |
7 | |
8 #include "core/animation/InterpolationType.h" | |
9 #include "core/animation/PrimitiveInterpolation.h" | |
10 #include "core/animation/PropertyInterpolationTypesMapping.h" | |
11 #include "core/animation/StyleInterpolation.h" | |
12 #include "core/animation/TypedInterpolationValue.h" | |
13 #include <memory> | |
14 | |
15 namespace blink { | |
16 | |
17 // TODO(alancutter): This class will replace *StyleInterpolation and Interpolati
on. | |
18 // For now it needs to distinguish itself during the refactor and temporarily ha
s an ugly name. | |
19 class CORE_EXPORT InvalidatableInterpolation : public Interpolation { | |
20 public: | |
21 static PassRefPtr<InvalidatableInterpolation> create( | |
22 PropertyHandle property, | |
23 const InterpolationTypes& interpolationTypes, | |
24 PassRefPtr<PropertySpecificKeyframe> startKeyframe, | |
25 PassRefPtr<PropertySpecificKeyframe> endKeyframe) | |
26 { | |
27 return adoptRef(new InvalidatableInterpolation(property, interpolationTy
pes, startKeyframe, endKeyframe)); | |
28 } | |
29 | |
30 PropertyHandle getProperty() const final { return m_property; } | |
31 virtual void interpolate(int iteration, double fraction); | |
32 bool dependsOnUnderlyingValue() const final; | |
33 virtual void apply(InterpolationEnvironment&) const { NOTREACHED(); } | |
34 static void applyStack(const ActiveInterpolations&, InterpolationEnvironment
&); | |
35 | |
36 virtual bool isInvalidatableInterpolation() const { return true; } | |
37 | |
38 private: | |
39 InvalidatableInterpolation( | |
40 PropertyHandle property, | |
41 const InterpolationTypes& interpolationTypes, | |
42 PassRefPtr<PropertySpecificKeyframe> startKeyframe, | |
43 PassRefPtr<PropertySpecificKeyframe> endKeyframe) | |
44 : Interpolation(nullptr, nullptr) | |
45 , m_property(property) | |
46 , m_interpolationTypes(interpolationTypes) | |
47 , m_startKeyframe(startKeyframe) | |
48 , m_endKeyframe(endKeyframe) | |
49 , m_currentFraction(std::numeric_limits<double>::quiet_NaN()) | |
50 , m_isCached(false) | |
51 { } | |
52 | |
53 using ConversionCheckers = InterpolationType::ConversionCheckers; | |
54 | |
55 std::unique_ptr<TypedInterpolationValue> maybeConvertUnderlyingValue(const I
nterpolationEnvironment&) const; | |
56 const TypedInterpolationValue* ensureValidInterpolation(const InterpolationE
nvironment&, const UnderlyingValueOwner&) const; | |
57 void clearCache() const; | |
58 bool isCacheValid(const InterpolationEnvironment&, const UnderlyingValueOwne
r&) const; | |
59 bool isNeutralKeyframeActive() const; | |
60 std::unique_ptr<PairwisePrimitiveInterpolation> maybeConvertPairwise(const I
nterpolationEnvironment&, const UnderlyingValueOwner&) const; | |
61 std::unique_ptr<TypedInterpolationValue> convertSingleKeyframe(const Propert
ySpecificKeyframe&, const InterpolationEnvironment&, const UnderlyingValueOwner&
) const; | |
62 void addConversionCheckers(const InterpolationType&, ConversionCheckers&) co
nst; | |
63 void setFlagIfInheritUsed(InterpolationEnvironment&) const; | |
64 double underlyingFraction() const; | |
65 | |
66 const PropertyHandle m_property; | |
67 const InterpolationTypes& m_interpolationTypes; | |
68 RefPtr<PropertySpecificKeyframe> m_startKeyframe; | |
69 RefPtr<PropertySpecificKeyframe> m_endKeyframe; | |
70 double m_currentFraction; | |
71 mutable bool m_isCached; | |
72 mutable std::unique_ptr<PrimitiveInterpolation> m_cachedPairConversion; | |
73 mutable ConversionCheckers m_conversionCheckers; | |
74 mutable std::unique_ptr<TypedInterpolationValue> m_cachedValue; | |
75 }; | |
76 | |
77 DEFINE_TYPE_CASTS(InvalidatableInterpolation, Interpolation, value, value->isInv
alidatableInterpolation(), value.isInvalidatableInterpolation()); | |
78 | |
79 } // namespace blink | |
80 | |
81 #endif // InvalidatableInterpolation_h | |
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