1 /* 2 * Copyright (C) 2011, 2012 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef CSSValuePool_h 27 #define CSSValuePool_h 28 29 #include "core/CSSPropertyNames.h" 30 #include "core/CSSValueKeywords.h" 31 #include "core/css/CSSInheritedValue.h" 32 #include "core/css/CSSInitialValue.h" 33 #include "core/css/CSSPrimitiveValue.h" 34 #include "wtf/HashMap.h" 35 #include "wtf/RefPtr.h" 36 #include "wtf/text/AtomicStringHash.h" 37 38 namespace blink { 39 40 class CSSValueList; 41 42 class CSSValuePool : public NoBaseWillBeGarbageCollected<CSSValuePool> { 43 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED; 44 public: 45 PassRefPtrWillBeRawPtr<CSSValueList> createFontFaceValue(const AtomicString&); 46 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createFontFamilyValue(const String&); createInheritedValue()47 PassRefPtrWillBeRawPtr<CSSInheritedValue> createInheritedValue() { return m_inheritedValue; } createImplicitInitialValue()48 PassRefPtrWillBeRawPtr<CSSInitialValue> createImplicitInitialValue() { return m_implicitInitialValue; } createExplicitInitialValue()49 PassRefPtrWillBeRawPtr<CSSInitialValue> createExplicitInitialValue() { return m_explicitInitialValue; } 50 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createIdentifierValue(CSSValueID identifier); 51 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createIdentifierValue(CSSPropertyID identifier); 52 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createColorValue(unsigned rgbValue); 53 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createValue(double value, CSSPrimitiveValue::UnitType); createValue(const String & value,CSSPrimitiveValue::UnitType type)54 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createValue(const String& value, CSSPrimitiveValue::UnitType type) { return CSSPrimitiveValue::create(value, type); } 55 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createValue(const Length& value, const RenderStyle&); createValue(const Length & value,float zoom)56 PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createValue(const Length& value, float zoom) { return CSSPrimitiveValue::create(value, zoom); } createValue(T value)57 template<typename T> static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> createValue(T value) { return CSSPrimitiveValue::create(value); } 58 59 void trace(Visitor*); 60 61 private: 62 CSSValuePool(); 63 64 RefPtrWillBeMember<CSSInheritedValue> m_inheritedValue; 65 RefPtrWillBeMember<CSSInitialValue> m_implicitInitialValue; 66 RefPtrWillBeMember<CSSInitialValue> m_explicitInitialValue; 67 68 WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue>, numCSSValueKeywords> m_identifierValueCache; 69 70 typedef WillBeHeapHashMap<unsigned, RefPtrWillBeMember<CSSPrimitiveValue> > ColorValueCache; 71 ColorValueCache m_colorValueCache; 72 RefPtrWillBeMember<CSSPrimitiveValue> m_colorTransparent; 73 RefPtrWillBeMember<CSSPrimitiveValue> m_colorWhite; 74 RefPtrWillBeMember<CSSPrimitiveValue> m_colorBlack; 75 76 static const int maximumCacheableIntegerValue = 255; 77 78 WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue>, maximumCacheableIntegerValue + 1> m_pixelValueCache; 79 WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue>, maximumCacheableIntegerValue + 1> m_percentValueCache; 80 WillBeHeapVector<RefPtrWillBeMember<CSSPrimitiveValue>, maximumCacheableIntegerValue + 1> m_numberValueCache; 81 82 typedef WillBeHeapHashMap<AtomicString, RefPtrWillBeMember<CSSValueList> > FontFaceValueCache; 83 FontFaceValueCache m_fontFaceValueCache; 84 85 typedef WillBeHeapHashMap<String, RefPtrWillBeMember<CSSPrimitiveValue> > FontFamilyValueCache; 86 FontFamilyValueCache m_fontFamilyValueCache; 87 88 friend CSSValuePool& cssValuePool(); 89 }; 90 91 CSSValuePool& cssValuePool(); 92 93 } 94 95 #endif 96