Implements CSSPropertyAPI for the webkit-text-emphasis-style property.

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIWebkitTextEmphasisStyle.cpp

+// 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/CSSPropertyAPIWebkitTextEmphasisStyle.h"
+
+#include "core/css/CSSStringValue.h"
+#include "core/css/CSSValueList.h"
+#include "core/css/parser/CSSPropertyParserHelpers.h"
+
+namespace blink {
+
+const CSSValue* CSSPropertyAPIWebkitTextEmphasisStyle::parseSingleValue(
+    CSSParserTokenRange& range,
+    const CSSParserContext* context) {
+  CSSValueID id = range.peek().id();
+  if (id == CSSValueNone)
+    return CSSPropertyParserHelpers::consumeIdent(range);
+
+  if (CSSValue* textEmphasisStyle =
+          CSSPropertyParserHelpers::consumeString(range))
+    return textEmphasisStyle;
+
+  CSSIdentifierValue* fill =
+      CSSPropertyParserHelpers::consumeIdent<CSSValueFilled, CSSValueOpen>(
+          range);
+  CSSIdentifierValue* shape =
+      CSSPropertyParserHelpers::consumeIdent<CSSValueDot, CSSValueCircle,
+                                             CSSValueDoubleCircle,
+                                             CSSValueTriangle, CSSValueSesame>(
+          range);
+  if (!fill) {
+    fill = CSSPropertyParserHelpers::consumeIdent<CSSValueFilled, CSSValueOpen>(
+        range);
+  }
+  if (fill && shape) {
+    CSSValueList* parsedValues = CSSValueList::createSpaceSeparated();
+    parsedValues->append(*fill);
+    parsedValues->append(*shape);
+    return parsedValues;
+  }
+  if (fill)
+    return fill;
+  if (shape)
+    return shape;
+  return nullptr;
+}
+
+}  // namespace blink