Index: third_party/WebKit/Source/core/css/CSSVariableData.cpp |
diff --git a/third_party/WebKit/Source/core/css/CSSVariableData.cpp b/third_party/WebKit/Source/core/css/CSSVariableData.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..d5208cba640cd2c897eac596245715c1efe8138b |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/css/CSSVariableData.cpp |
@@ -0,0 +1,59 @@ |
+// 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. |
+ |
+#include "config.h" |
+#include "core/css/CSSVariableData.h" |
+ |
+#include "core/css/parser/CSSParserTokenRange.h" |
+#include "wtf/text/StringBuilder.h" |
+ |
+namespace blink { |
+ |
+template<typename CharacterType> void CSSVariableData::updateTokens(const CSSParserTokenRange& range) |
+{ |
+ const CharacterType* currentOffset = m_backingString.getCharacters<CharacterType>(); |
+ for (const CSSParserToken& token : range) { |
+ if (token.hasStringBacking()) { |
+ unsigned length = token.value().length(); |
+ CSSParserString parserString; |
+ parserString.init(currentOffset, length); |
+ m_tokens.append(token.copyWithUpdatedString(parserString)); |
+ currentOffset += length; |
+ } else { |
+ m_tokens.append(token); |
+ } |
+ } |
+ ASSERT(currentOffset == m_backingString.getCharacters<CharacterType>() + m_backingString.length()); |
+} |
+ |
+void CSSVariableData::consumeAndUpdateTokens(const CSSParserTokenRange& range) |
+{ |
+ StringBuilder stringBuilder; |
+ CSSParserTokenRange localRange = range; |
+ |
+ while (!localRange.atEnd()) { |
+ CSSParserToken token = localRange.consume(); |
+ if (token.hasStringBacking()) { |
+ CSSParserString value = token.value(); |
+ if (value.is8Bit()) |
+ stringBuilder.append(value.characters8(), value.length()); |
+ else |
+ stringBuilder.append(value.characters16(), value.length()); |
+ } |
+ } |
+ m_backingString = stringBuilder.toString(); |
+ if (m_backingString.is8Bit()) |
+ updateTokens<LChar>(range); |
+ else |
+ updateTokens<UChar>(range); |
+} |
+ |
+CSSVariableData::CSSVariableData(const CSSParserTokenRange& range, bool needsVariableResolution) |
+ : m_needsVariableResolution(needsVariableResolution) |
+{ |
+ ASSERT(!range.atEnd()); |
+ consumeAndUpdateTokens(range); |
+} |
+ |
+} // namespace blink |