| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef StyleInterpolation_h |
| #define StyleInterpolation_h |
| |
| #include "core/CSSPropertyNames.h" |
| #include "core/CoreExport.h" |
| #include "core/animation/Interpolation.h" |
| #include "core/animation/PropertyHandle.h" |
| |
| namespace blink { |
| |
| class StyleResolverState; |
| |
| enum InterpolationRange { |
| RangeAll, |
| RangeFloor, |
| RangeGreaterThanOrEqualToOne, |
| RangeNonNegative, |
| RangeRound, |
| RangeRoundGreaterThanOrEqualToOne, |
| RangeOpacityFIXME, |
| RangeZeroToOne |
| }; |
| |
| class CORE_EXPORT StyleInterpolation : public Interpolation { |
| public: |
| // 1) convert m_cachedValue into an X |
| // 2) shove X into StyleResolverState |
| // X can be: |
| // (1) a CSSValue (and applied via StyleBuilder::applyProperty) |
| // (2) an AnimatableValue (and applied via // AnimatedStyleBuilder::applyProperty) |
| // (3) a custom value that is inserted directly into the StyleResolverState. |
| virtual void apply(StyleResolverState&) const = 0; |
| |
| virtual bool isStyleInterpolation() const override final { return true; } |
| virtual bool isDeferredLegacyStyleInterpolation() const { return false; } |
| |
| CSSPropertyID id() const { return m_id; } |
| |
| virtual PropertyHandle property() const override final |
| { |
| return PropertyHandle(id()); |
| } |
| |
| DEFINE_INLINE_VIRTUAL_TRACE() |
| { |
| Interpolation::trace(visitor); |
| } |
| |
| protected: |
| CSSPropertyID m_id; |
| |
| StyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id) |
| : Interpolation(start, end) |
| , m_id(id) |
| { |
| } |
| }; |
| |
| DEFINE_TYPE_CASTS(StyleInterpolation, Interpolation, value, value->isStyleInterpolation(), value.isStyleInterpolation()); |
| |
| } |
| |
| #endif |