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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 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 CSSVariableResolver_h | 5 #ifndef CSSVariableResolver_h |
| 6 #define CSSVariableResolver_h | 6 #define CSSVariableResolver_h |
| 7 | 7 |
| 8 #include "core/CSSPropertyNames.h" | 8 #include "core/CSSPropertyNames.h" |
| 9 #include "core/css/parser/CSSParserToken.h" | 9 #include "core/css/parser/CSSParserToken.h" |
| 10 #include "wtf/HashSet.h" | 10 #include "wtf/HashSet.h" |
| 11 #include "wtf/text/AtomicString.h" | 11 #include "wtf/text/AtomicString.h" |
| 12 #include "wtf/text/AtomicStringHash.h" | 12 #include "wtf/text/AtomicStringHash.h" |
| 13 | 13 |
| 14 namespace blink { | 14 namespace blink { |
| 15 | 15 |
| 16 class CSSParserTokenRange; | 16 class CSSParserTokenRange; |
| 17 class CSSPendingSubstitutionValue; | 17 class CSSPendingSubstitutionValue; |
| 18 class CSSVariableData; | 18 class CSSVariableData; |
| 19 class CSSVariableReferenceValue; | 19 class CSSVariableReferenceValue; |
| 20 class PropertyRegistry; | 20 class PropertyRegistry; |
| 21 class StyleResolverState; | 21 class StyleResolverState; |
| 22 class StyleVariableData; | 22 class StyleInheritedVariables; |
| 23 class StyleNonInheritedVariables; |
| 23 | 24 |
| 24 class CSSVariableResolver { | 25 class CSSVariableResolver { |
| 25 STACK_ALLOCATED(); | 26 STACK_ALLOCATED(); |
| 26 public: | 27 public: |
| 27 static void resolveVariableDefinitions(const StyleResolverState&); | 28 static void resolveVariableDefinitions(const StyleResolverState&); |
| 28 | 29 |
| 29 // Shorthand properties are not supported. | 30 // Shorthand properties are not supported. |
| 30 static const CSSValue* resolveVariableReferences(const StyleResolverState&,
CSSPropertyID, const CSSValue&); | 31 static const CSSValue* resolveVariableReferences(const StyleResolverState&,
CSSPropertyID, const CSSValue&); |
| 31 | 32 |
| 32 DECLARE_TRACE(); | 33 DECLARE_TRACE(); |
| (...skipping 16 matching lines...) Expand all Loading... |
| 49 void resolveApplyAtRule(CSSParserTokenRange&, Vector<CSSParserToken>& result
); | 50 void resolveApplyAtRule(CSSParserTokenRange&, Vector<CSSParserToken>& result
); |
| 50 | 51 |
| 51 // These return null if the custom property is invalid | 52 // These return null if the custom property is invalid |
| 52 | 53 |
| 53 // Returns the CSSVariableData for a custom property, resolving and storing
it if necessary | 54 // Returns the CSSVariableData for a custom property, resolving and storing
it if necessary |
| 54 CSSVariableData* valueForCustomProperty(AtomicString name); | 55 CSSVariableData* valueForCustomProperty(AtomicString name); |
| 55 // Resolves the CSSVariableData from a custom property declaration | 56 // Resolves the CSSVariableData from a custom property declaration |
| 56 PassRefPtr<CSSVariableData> resolveCustomProperty(AtomicString name, const C
SSVariableData&); | 57 PassRefPtr<CSSVariableData> resolveCustomProperty(AtomicString name, const C
SSVariableData&); |
| 57 | 58 |
| 58 const StyleResolverState& m_styleResolverState; | 59 const StyleResolverState& m_styleResolverState; |
| 59 StyleVariableData* m_styleVariableData; | 60 StyleInheritedVariables* m_inheritedVariables; |
| 61 StyleNonInheritedVariables* m_nonInheritedVariables; |
| 60 Member<const PropertyRegistry> m_registry; | 62 Member<const PropertyRegistry> m_registry; |
| 61 HashSet<AtomicString> m_variablesSeen; | 63 HashSet<AtomicString> m_variablesSeen; |
| 62 // Resolution doesn't finish when a cycle is detected. Fallbacks still | 64 // Resolution doesn't finish when a cycle is detected. Fallbacks still |
| 63 // need to be tracked for additional cycles, and invalidation only | 65 // need to be tracked for additional cycles, and invalidation only |
| 64 // applies back to cycle starts. | 66 // applies back to cycle starts. |
| 65 HashSet<AtomicString> m_cycleStartPoints; | 67 HashSet<AtomicString> m_cycleStartPoints; |
| 66 }; | 68 }; |
| 67 | 69 |
| 68 } // namespace blink | 70 } // namespace blink |
| 69 | 71 |
| 70 #endif // CSSVariableResolver | 72 #endif // CSSVariableResolver |
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