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 3 // found in the LICENSE file. 4 5 #include "config.h" 6 #include "core/animation/DeferredLegacyStyleInterpolation.h" 7 8 #include "core/animation/LegacyStyleInterpolation.h" 9 #include "core/css/CSSImageValue.h" 10 #include "core/css/CSSPrimitiveValue.h" 11 #include "core/css/CSSSVGDocumentValue.h" 12 #include "core/css/CSSShadowValue.h" 13 #include "core/css/CSSValueList.h" 14 #include "core/css/Pair.h" 15 #include "core/css/Rect.h" 16 #include "core/css/resolver/StyleResolver.h" 17 #include "core/css/resolver/StyleResolverState.h" 18 19 namespace blink { 20 apply(StyleResolverState & state) const21void DeferredLegacyStyleInterpolation::apply(StyleResolverState& state) const 22 { 23 RefPtrWillBeRawPtr<LegacyStyleInterpolation> innerInterpolation = LegacyStyleInterpolation::create( 24 StyleResolver::createAnimatableValueSnapshot(state, m_id, *m_startCSSValue), 25 StyleResolver::createAnimatableValueSnapshot(state, m_id, *m_endCSSValue), 26 m_id); 27 innerInterpolation->interpolate(m_cachedIteration, m_cachedFraction); 28 innerInterpolation->apply(state); 29 } 30 interpolationRequiresStyleResolve(const CSSValue & value)31bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValue& value) 32 { 33 switch (value.cssValueType()) { 34 case CSSValue::CSS_INHERIT: 35 return true; 36 case CSSValue::CSS_PRIMITIVE_VALUE: 37 return interpolationRequiresStyleResolve(toCSSPrimitiveValue(value)); 38 case CSSValue::CSS_VALUE_LIST: 39 return interpolationRequiresStyleResolve(toCSSValueList(value)); 40 case CSSValue::CSS_CUSTOM: 41 if (value.isImageValue()) 42 return interpolationRequiresStyleResolve(toCSSImageValue(value)); 43 if (value.isShadowValue()) 44 return interpolationRequiresStyleResolve(toCSSShadowValue(value)); 45 if (value.isSVGDocumentValue()) 46 return interpolationRequiresStyleResolve(toCSSSVGDocumentValue(value)); 47 // FIXME: consider other custom types. 48 return true; 49 case CSSValue::CSS_INITIAL: 50 // FIXME: should not require resolving styles for initial. 51 return true; 52 default: 53 ASSERT_NOT_REACHED(); 54 return true; 55 } 56 } 57 interpolationRequiresStyleResolve(const CSSPrimitiveValue & primitiveValue)58bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSPrimitiveValue& primitiveValue) 59 { 60 // FIXME: consider other types. 61 if (primitiveValue.isNumber() || primitiveValue.isPercentage() || primitiveValue.isAngle() || primitiveValue.isRGBColor() || primitiveValue.isURI()) 62 return false; 63 64 if (primitiveValue.isLength()) 65 return primitiveValue.isFontRelativeLength() || primitiveValue.isViewportPercentageLength(); 66 67 if (primitiveValue.isCalculated()) { 68 CSSLengthArray lengthArray(CSSPrimitiveValue::LengthUnitTypeCount); 69 primitiveValue.accumulateLengthArray(lengthArray); 70 return lengthArray[CSSPrimitiveValue::UnitTypeFontSize] != 0 71 || lengthArray[CSSPrimitiveValue::UnitTypeFontXSize] != 0 72 || lengthArray[CSSPrimitiveValue::UnitTypeRootFontSize] != 0 73 || lengthArray[CSSPrimitiveValue::UnitTypeZeroCharacterWidth] != 0 74 || lengthArray[CSSPrimitiveValue::UnitTypeViewportWidth] != 0 75 || lengthArray[CSSPrimitiveValue::UnitTypeViewportHeight] != 0 76 || lengthArray[CSSPrimitiveValue::UnitTypeViewportMin] != 0 77 || lengthArray[CSSPrimitiveValue::UnitTypeViewportMax] != 0; 78 } 79 80 if (Pair* pair = primitiveValue.getPairValue()) { 81 return interpolationRequiresStyleResolve(*pair->first()) 82 || interpolationRequiresStyleResolve(*pair->second()); 83 } 84 85 if (Rect* rect = primitiveValue.getRectValue()) { 86 return interpolationRequiresStyleResolve(*rect->top()) 87 || interpolationRequiresStyleResolve(*rect->right()) 88 || interpolationRequiresStyleResolve(*rect->bottom()) 89 || interpolationRequiresStyleResolve(*rect->left()); 90 } 91 92 if (Quad* quad = primitiveValue.getQuadValue()) { 93 return interpolationRequiresStyleResolve(*quad->top()) 94 || interpolationRequiresStyleResolve(*quad->right()) 95 || interpolationRequiresStyleResolve(*quad->bottom()) 96 || interpolationRequiresStyleResolve(*quad->left()); 97 } 98 99 if (primitiveValue.isShape()) 100 return interpolationRequiresStyleResolve(*primitiveValue.getShapeValue()); 101 102 CSSValueID id = primitiveValue.getValueID(); 103 bool isColor = ((id >= CSSValueAqua && id <= CSSValueTransparent) 104 || (id >= CSSValueAliceblue && id <= CSSValueYellowgreen) 105 || id == CSSValueGrey); 106 return (id != CSSValueNone) && !isColor; 107 } 108 interpolationRequiresStyleResolve(const CSSImageValue & imageValue)109bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSImageValue& imageValue) 110 { 111 return false; 112 } 113 interpolationRequiresStyleResolve(const CSSShadowValue & shadowValue)114bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSShadowValue& shadowValue) 115 { 116 return (shadowValue.x && interpolationRequiresStyleResolve(*shadowValue.x)) 117 || (shadowValue.y && interpolationRequiresStyleResolve(*shadowValue.y)) 118 || (shadowValue.blur && interpolationRequiresStyleResolve(*shadowValue.blur)) 119 || (shadowValue.spread && interpolationRequiresStyleResolve(*shadowValue.spread)) 120 || (shadowValue.style && interpolationRequiresStyleResolve(*shadowValue.style)) 121 || (shadowValue.color && interpolationRequiresStyleResolve(*shadowValue.color)); 122 } 123 interpolationRequiresStyleResolve(const CSSSVGDocumentValue & documentValue)124bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSSVGDocumentValue& documentValue) 125 { 126 return true; 127 } 128 interpolationRequiresStyleResolve(const CSSValueList & valueList)129bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSValueList& valueList) 130 { 131 size_t length = valueList.length(); 132 for (size_t index = 0; index < length; ++index) { 133 if (interpolationRequiresStyleResolve(*valueList.item(index))) 134 return true; 135 } 136 return false; 137 } 138 interpolationRequiresStyleResolve(const CSSBasicShape & shape)139bool DeferredLegacyStyleInterpolation::interpolationRequiresStyleResolve(const CSSBasicShape& shape) 140 { 141 // FIXME: Should determine the specific shape, and inspect the members. 142 return false; 143 } 144 trace(Visitor * visitor)145void DeferredLegacyStyleInterpolation::trace(Visitor* visitor) 146 { 147 visitor->trace(m_startCSSValue); 148 visitor->trace(m_endCSSValue); 149 StyleInterpolation::trace(visitor); 150 } 151 152 } 153