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 "core/css/CSSVariablesMapForEachCallback.h" 33 #include "wtf/PassOwnPtr.h" 34 #include "wtf/RefCounted.h" 35 #include "wtf/text/WTFString.h" 36 37 namespace WebCore { 38 39 class CSSStyleDeclaration; 40 class CSSVariablesIterator; 41 class ExceptionState; 42 43 class CSSVariablesMap FINAL : public RefCounted<CSSVariablesMap> { 44 public: create(CSSStyleDeclaration * styleDeclaration)45 static PassRefPtr<CSSVariablesMap> create(CSSStyleDeclaration* styleDeclaration) 46 { 47 return adoptRef(new CSSVariablesMap(styleDeclaration)); 48 } 49 50 unsigned size() const; 51 String get(const AtomicString& name) const; 52 bool has(const AtomicString& name) const; 53 void set(const AtomicString& name, const String& value, ExceptionState&); 54 bool remove(const AtomicString& name); 55 void clear(ExceptionState&); 56 void forEach(PassOwnPtr<CSSVariablesMapForEachCallback>, ScriptValue& thisArg) const; 57 void forEach(PassOwnPtr<CSSVariablesMapForEachCallback>) const; 58 clearStyleDeclaration()59 void clearStyleDeclaration() { m_styleDeclaration = 0; } 60 61 private: CSSVariablesMap(CSSStyleDeclaration * styleDeclaration)62 explicit CSSVariablesMap(CSSStyleDeclaration* styleDeclaration) 63 : m_styleDeclaration(styleDeclaration) 64 { 65 ASSERT(RuntimeEnabledFeatures::cssVariablesEnabled()); 66 } 67 68 void forEach(PassOwnPtr<CSSVariablesMapForEachCallback>, ScriptValue* thisArg) const; 69 70 CSSStyleDeclaration* m_styleDeclaration; 71 typedef Vector<CSSVariablesIterator*> Iterators; 72 mutable Iterators m_activeIterators; 73 }; 74 75 } // namespace WebCore 76 77 #endif // CSSVariablesMap_h 78