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Unified Diff: third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h

Issue 1192983003: CSS Custom Properties (Variables) (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Use m_unit Created 5 years, 1 month ago
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Index: third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
diff --git a/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h b/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
new file mode 100644
index 0000000000000000000000000000000000000000..fb832cce7387278e5194fafec140e2e1e10fc54d
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
@@ -0,0 +1,39 @@
+// 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 CSSVariableResolver_h
+#define CSSVariableResolver_h
+
+#include "core/CSSPropertyNames.h"
+#include "core/css/parser/CSSParserToken.h"
+#include "wtf/HashSet.h"
+#include "wtf/text/AtomicString.h"
+#include "wtf/text/AtomicStringHash.h"
+
+namespace blink {
+
+class CSSVariableReferenceValue;
+class StyleResolverState;
+class StyleVariableData;
+
+class CSSVariableResolver {
+public:
+ static void resolveVariableDefinitions(StyleVariableData*);
+ static void resolveAndApplyVariableReferences(StyleResolverState&, CSSPropertyID, const CSSVariableReferenceValue&);
+
+private:
+ CSSVariableResolver(StyleVariableData*);
+ CSSVariableResolver(StyleVariableData*, AtomicString& variable);
+
+ unsigned resolveVariableTokensRecursive(Vector<CSSParserToken>&, unsigned startOffset);
+ void resolveVariableReferencesFromTokens(Vector<CSSParserToken>& tokens);
+
+ StyleVariableData* m_styleVariableData;
+ HashSet<AtomicString> m_variablesSeen;
+ bool m_cycleDetected;
+};
+
+} // namespace blink
+
+#endif // CSSVariableResolver

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