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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef StyleInterpolation_h | 5 #ifndef StyleInterpolation_h |
| 6 #define StyleInterpolation_h | 6 #define StyleInterpolation_h |
| 7 | 7 |
| 8 #include "core/CSSPropertyNames.h" | 8 #include "core/CSSPropertyNames.h" |
| 9 #include "core/CoreExport.h" | 9 #include "core/CoreExport.h" |
| 10 #include "core/animation/Interpolation.h" | 10 #include "core/animation/Interpolation.h" |
| 11 #include "core/animation/PropertyHandle.h" | 11 #include "core/animation/PropertyHandle.h" |
| 12 #include <memory> | 12 #include <memory> |
| 13 | 13 |
| 14 namespace blink { | 14 namespace blink { |
| 15 | 15 |
| 16 class StyleResolverState; | 16 class StyleResolverState; |
| 17 | 17 |
| 18 class CORE_EXPORT StyleInterpolation : public Interpolation { | 18 class CORE_EXPORT StyleInterpolation : public Interpolation { |
| 19 public: | 19 public: |
| 20 // 1) convert m_cachedValue into an X | 20 // 1) convert m_cachedValue into an X |
| 21 // 2) shove X into StyleResolverState | 21 // 2) shove X into StyleResolverState |
| 22 // X can be: | 22 // X can be: |
| 23 // (1) a CSSValue (and applied via StyleBuilder::applyProperty) | 23 // (1) a CSSValue (and applied via StyleBuilder::applyProperty) |
| 24 // (2) an AnimatableValue (and applied via // AnimatedStyleBuilder::applyPrope
rty) | 24 // (2) an AnimatableValue (and applied via |
| 25 // AnimatedStyleBuilder::applyProperty) |
| 25 // (3) a custom value that is inserted directly into the StyleResolverState. | 26 // (3) a custom value that is inserted directly into the StyleResolverState. |
| 26 virtual void apply(StyleResolverState&) const = 0; | 27 virtual void apply(StyleResolverState&) const = 0; |
| 27 | 28 |
| 28 bool isStyleInterpolation() const final { return true; } | 29 bool isStyleInterpolation() const final { return true; } |
| 29 | 30 |
| 30 CSSPropertyID id() const { return m_id; } | 31 CSSPropertyID id() const { return m_id; } |
| 31 | 32 |
| 32 PropertyHandle getProperty() const final { return PropertyHandle(id()); } | 33 PropertyHandle getProperty() const final { return PropertyHandle(id()); } |
| 33 | 34 |
| 34 protected: | 35 protected: |
| 35 CSSPropertyID m_id; | 36 CSSPropertyID m_id; |
| 36 | 37 |
| 37 StyleInterpolation(std::unique_ptr<InterpolableValue> start, | 38 StyleInterpolation(std::unique_ptr<InterpolableValue> start, |
| 38 std::unique_ptr<InterpolableValue> end, | 39 std::unique_ptr<InterpolableValue> end, |
| 39 CSSPropertyID id) | 40 CSSPropertyID id) |
| 40 : Interpolation(std::move(start), std::move(end)), m_id(id) {} | 41 : Interpolation(std::move(start), std::move(end)), m_id(id) {} |
| 41 }; | 42 }; |
| 42 | 43 |
| 43 DEFINE_TYPE_CASTS(StyleInterpolation, | 44 DEFINE_TYPE_CASTS(StyleInterpolation, |
| 44 Interpolation, | 45 Interpolation, |
| 45 value, | 46 value, |
| 46 value->isStyleInterpolation(), | 47 value->isStyleInterpolation(), |
| 47 value.isStyleInterpolation()); | 48 value.isStyleInterpolation()); |
| 48 | 49 |
| 49 } // namespace blink | 50 } // namespace blink |
| 50 | 51 |
| 51 #endif | 52 #endif |
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