1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "config.h" 6 #include "core/animation/AnimationInputHelpers.h" 7 8 #include "core/css/parser/CSSParser.h" 9 #include "core/css/resolver/CSSToStyleMap.h" 10 #include "wtf/text/StringBuilder.h" 11 12 namespace blink { 13 14 CSSPropertyID AnimationInputHelpers::keyframeAttributeToCSSPropertyID(const String& propertyName) 15 { 16 // Disallow prefixed properties. 17 if (propertyName[0] == '-' || isASCIIUpper(propertyName[0])) 18 return CSSPropertyInvalid; 19 if (propertyName == "cssFloat") 20 return CSSPropertyFloat; 21 StringBuilder builder; 22 for (size_t i = 0; i < propertyName.length(); ++i) { 23 if (isASCIIUpper(propertyName[i])) 24 builder.append('-'); 25 builder.append(propertyName[i]); 26 } 27 return cssPropertyID(builder.toString()); 28 } 29 30 PassRefPtr<TimingFunction> AnimationInputHelpers::parseTimingFunction(const String& string) 31 { 32 if (string.isEmpty()) 33 return nullptr; 34 35 RefPtrWillBeRawPtr<CSSValue> value = CSSParser::parseSingleValue(CSSPropertyTransitionTimingFunction, string); 36 if (!value || value->isInitialValue() || value->isInheritedValue()) 37 return nullptr; 38 CSSValueList* valueList = toCSSValueList(value.get()); 39 if (valueList->length() > 1) 40 return nullptr; 41 return CSSToStyleMap::mapAnimationTimingFunction(valueList->item(0), true); 42 } 43 44 } // namespace blink 45
