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Unified Diff: third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp

Issue 2772263004: Added CSSPropertyCounterUtils which holds shared counter parsing logic. (Closed)
Patch Set: Created 3 years, 9 months ago
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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..e8191c569296e04d2166aa0c0a843ea55e8da64e
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyCounterUtils.cpp
@@ -0,0 +1,38 @@
+// 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,
+ CounterDefaultValue 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 i = static_cast<int>(defaultValue);
shend 2017/03/28 01:58:48 Could we change 'i' to a more informative name e.g
+ if (CSSPrimitiveValue* counterValue =
+ CSSPropertyParserHelpers::consumeInteger(range))
+ i = clampTo<int>(counterValue->getDoubleValue());
+ list->append(*CSSValuePair::create(
+ counterName,
+ CSSPrimitiveValue::create(i, CSSPrimitiveValue::UnitType::Integer),
+ CSSValuePair::DropIdenticalValues));
+ } while (!range.atEnd());
+ return list;
+}
+
+} // namespace blink
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