Index: third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp |
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp b/third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..312891df8f060867b049fb6ae06a42bcd77fd5e3 |
--- /dev/null |
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp |
@@ -0,0 +1,37 @@ |
+// Copyright 2017 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 "core/css/properties/CSSPropertyCounterUtils.h" |
+ |
+#include "core/css/CSSValueList.h" |
+#include "core/css/CSSValuePair.h" |
+#include "core/css/parser/CSSParserTokenRange.h" |
+#include "core/css/parser/CSSPropertyParserHelpers.h" |
+ |
+namespace blink { |
+ |
+CSSValue* CSSPropertyCounterUtils::consumeCounter(CSSParserTokenRange& range, |
+ int defaultValue) { |
+ if (range.peek().id() == CSSValueNone) |
+ return CSSPropertyParserHelpers::consumeIdent(range); |
+ |
+ CSSValueList* list = CSSValueList::createSpaceSeparated(); |
+ do { |
+ CSSCustomIdentValue* counterName = |
+ CSSPropertyParserHelpers::consumeCustomIdent(range); |
+ if (!counterName) |
+ return nullptr; |
+ int value = defaultValue; |
+ if (CSSPrimitiveValue* counterValue = |
+ CSSPropertyParserHelpers::consumeInteger(range)) |
+ value = clampTo<int>(counterValue->getDoubleValue()); |
+ list->append(*CSSValuePair::create( |
+ counterName, |
+ CSSPrimitiveValue::create(value, CSSPrimitiveValue::UnitType::Integer), |
+ CSSValuePair::DropIdenticalValues)); |
+ } while (!range.atEnd()); |
+ return list; |
+} |
+ |
+} // namespace blink |