Index: third_party/WebKit/Source/core/css/CSSVariableData.h |
diff --git a/third_party/WebKit/Source/core/css/CSSVariableData.h b/third_party/WebKit/Source/core/css/CSSVariableData.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..9b350338e285513065ce3200fb5dc244ba6951cf |
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+++ b/third_party/WebKit/Source/core/css/CSSVariableData.h |
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+// Copyright 2015 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 CSSVariableData_h |
+#define CSSVariableData_h |
+ |
+#include "core/css/parser/CSSParserToken.h" |
+#include "core/css/parser/CSSParserTokenRange.h" |
+#include "wtf/RefCounted.h" |
+#include "wtf/text/WTFString.h" |
+ |
+namespace blink { |
+ |
+class CSSParserTokenRange; |
+ |
+class CSSVariableData : public RefCounted<CSSVariableData> { |
+ WTF_MAKE_NONCOPYABLE(CSSVariableData); |
+ USING_FAST_MALLOC(CSSVariableData); |
+public: |
+ static PassRefPtr<CSSVariableData> create(const CSSParserTokenRange& range, bool needsVariableResolution = true) |
+ { |
+ return adoptRef(new CSSVariableData(range, needsVariableResolution)); |
+ } |
+ |
+ static PassRefPtr<CSSVariableData> createResolved(const Vector<CSSParserToken>& resolvedTokens) |
+ { |
+ return adoptRef(new CSSVariableData(resolvedTokens)); |
+ } |
+ |
+ CSSParserTokenRange tokenRange() { return m_tokens; } |
+ |
+ const Vector<CSSParserToken>& tokens() { return m_tokens; } |
+ |
+ bool needsVariableResolution() const { return m_needsVariableResolution; } |
+private: |
+ CSSVariableData(const CSSParserTokenRange&, bool needsVariableResolution); |
+ |
+ // We can safely copy the tokens (which have raw pointers to substrings) because |
+ // StylePropertySets contain references to CSSCustomPropertyDeclarations, which |
+ // point to the unresolved CSSVariableData values that own the backing strings |
+ // this will potentially reference. |
+ CSSVariableData(const Vector<CSSParserToken>& resolvedTokens) |
+ : m_tokens(resolvedTokens) |
+ , m_needsVariableResolution(false) |
+ { } |
+ |
+ void consumeAndUpdateTokens(const CSSParserTokenRange&); |
+ template<typename CharacterType> void updateTokens(const CSSParserTokenRange&); |
+ |
+ String m_backingString; |
+ Vector<CSSParserToken> m_tokens; |
+ const bool m_needsVariableResolution; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // CSSVariableData_h |