1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef CSSVariablesMap_h 29 #define CSSVariablesMap_h 30 31 #include "RuntimeEnabledFeatures.h" 32 #include "wtf/RefCounted.h" 33 #include "wtf/text/WTFString.h" 34 35 namespace WebCore { 36 37 class CSSStyleDeclaration; 38 class ExceptionState; 39 40 class CSSVariablesMap : public RefCounted<CSSVariablesMap> { 41 public: 42 virtual ~CSSVariablesMap() { } 43 44 static PassRefPtr<CSSVariablesMap> create(CSSStyleDeclaration* styleDeclaration) 45 { 46 return adoptRef(new CSSVariablesMap(styleDeclaration)); 47 } 48 49 unsigned size() const; 50 String get(const AtomicString& name) const; 51 bool has(const AtomicString& name) const; 52 void set(const AtomicString& name, const String& value, ExceptionState&) const; 53 bool remove(const AtomicString& name) const; 54 void clear(ExceptionState&) const; 55 56 void clearStyleDeclaration() { m_styleDeclaration = 0; } 57 58 private: 59 explicit CSSVariablesMap(CSSStyleDeclaration* styleDeclaration) 60 : m_styleDeclaration(styleDeclaration) 61 { 62 ASSERT(RuntimeEnabledFeatures::cssVariablesEnabled()); 63 } 64 65 CSSStyleDeclaration* m_styleDeclaration; 66 }; 67 68 } // namespace WebCore 69 70 #endif // CSSVariablesMap_h 71
