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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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66 | 66 |
67 ElementData::ElementData(const ElementData& other, bool isUnique) | 67 ElementData::ElementData(const ElementData& other, bool isUnique) |
68 : m_isUnique(isUnique), | 68 : m_isUnique(isUnique), |
69 m_arraySize(isUnique ? 0 : other.attributes().size()), | 69 m_arraySize(isUnique ? 0 : other.attributes().size()), |
70 m_presentationAttributeStyleIsDirty( | 70 m_presentationAttributeStyleIsDirty( |
71 other.m_presentationAttributeStyleIsDirty), | 71 other.m_presentationAttributeStyleIsDirty), |
72 m_styleAttributeIsDirty(other.m_styleAttributeIsDirty), | 72 m_styleAttributeIsDirty(other.m_styleAttributeIsDirty), |
73 m_animatedSVGAttributesAreDirty(other.m_animatedSVGAttributesAreDirty), | 73 m_animatedSVGAttributesAreDirty(other.m_animatedSVGAttributesAreDirty), |
74 m_classNames(other.m_classNames), | 74 m_classNames(other.m_classNames), |
75 m_idForStyleResolution(other.m_idForStyleResolution) { | 75 m_idForStyleResolution(other.m_idForStyleResolution) { |
76 // NOTE: The inline style is copied by the subclass copy constructor since we
don't know what to do with it here. | 76 // NOTE: The inline style is copied by the subclass copy constructor since we |
| 77 // don't know what to do with it here. |
77 } | 78 } |
78 | 79 |
79 void ElementData::finalizeGarbageCollectedObject() { | 80 void ElementData::finalizeGarbageCollectedObject() { |
80 if (m_isUnique) | 81 if (m_isUnique) |
81 toUniqueElementData(this)->~UniqueElementData(); | 82 toUniqueElementData(this)->~UniqueElementData(); |
82 else | 83 else |
83 toShareableElementData(this)->~ShareableElementData(); | 84 toShareableElementData(this)->~ShareableElementData(); |
84 } | 85 } |
85 | 86 |
86 UniqueElementData* ElementData::makeUniqueCopy() const { | 87 UniqueElementData* ElementData::makeUniqueCopy() const { |
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152 UniqueElementData::UniqueElementData(const UniqueElementData& other) | 153 UniqueElementData::UniqueElementData(const UniqueElementData& other) |
153 : ElementData(other, true), | 154 : ElementData(other, true), |
154 m_presentationAttributeStyle(other.m_presentationAttributeStyle), | 155 m_presentationAttributeStyle(other.m_presentationAttributeStyle), |
155 m_attributeVector(other.m_attributeVector) { | 156 m_attributeVector(other.m_attributeVector) { |
156 m_inlineStyle = | 157 m_inlineStyle = |
157 other.m_inlineStyle ? other.m_inlineStyle->mutableCopy() : nullptr; | 158 other.m_inlineStyle ? other.m_inlineStyle->mutableCopy() : nullptr; |
158 } | 159 } |
159 | 160 |
160 UniqueElementData::UniqueElementData(const ShareableElementData& other) | 161 UniqueElementData::UniqueElementData(const ShareableElementData& other) |
161 : ElementData(other, true) { | 162 : ElementData(other, true) { |
162 // An ShareableElementData should never have a mutable inline StylePropertySet
attached. | 163 // An ShareableElementData should never have a mutable inline StylePropertySet |
| 164 // attached. |
163 DCHECK(!other.m_inlineStyle || !other.m_inlineStyle->isMutable()); | 165 DCHECK(!other.m_inlineStyle || !other.m_inlineStyle->isMutable()); |
164 m_inlineStyle = other.m_inlineStyle; | 166 m_inlineStyle = other.m_inlineStyle; |
165 | 167 |
166 unsigned length = other.attributes().size(); | 168 unsigned length = other.attributes().size(); |
167 m_attributeVector.reserveCapacity(length); | 169 m_attributeVector.reserveCapacity(length); |
168 for (unsigned i = 0; i < length; ++i) | 170 for (unsigned i = 0; i < length; ++i) |
169 m_attributeVector.uncheckedAppend(other.m_attributeArray[i]); | 171 m_attributeVector.uncheckedAppend(other.m_attributeArray[i]); |
170 } | 172 } |
171 | 173 |
172 UniqueElementData* UniqueElementData::create() { | 174 UniqueElementData* UniqueElementData::create() { |
173 return new UniqueElementData; | 175 return new UniqueElementData; |
174 } | 176 } |
175 | 177 |
176 ShareableElementData* UniqueElementData::makeShareableCopy() const { | 178 ShareableElementData* UniqueElementData::makeShareableCopy() const { |
177 void* slot = ThreadHeap::allocate<ElementData>( | 179 void* slot = ThreadHeap::allocate<ElementData>( |
178 sizeForShareableElementDataWithAttributeCount(m_attributeVector.size())); | 180 sizeForShareableElementDataWithAttributeCount(m_attributeVector.size())); |
179 return new (slot) ShareableElementData(*this); | 181 return new (slot) ShareableElementData(*this); |
180 } | 182 } |
181 | 183 |
182 DEFINE_TRACE_AFTER_DISPATCH(UniqueElementData) { | 184 DEFINE_TRACE_AFTER_DISPATCH(UniqueElementData) { |
183 visitor->trace(m_presentationAttributeStyle); | 185 visitor->trace(m_presentationAttributeStyle); |
184 ElementData::traceAfterDispatch(visitor); | 186 ElementData::traceAfterDispatch(visitor); |
185 } | 187 } |
186 | 188 |
187 } // namespace blink | 189 } // namespace blink |
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