1 /* 2 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org> 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef SVGAnimatedPropertyDescription_h 23 #define SVGAnimatedPropertyDescription_h 24 25 #if ENABLE(SVG) 26 #include <wtf/HashMap.h> 27 #include <wtf/text/AtomicString.h> 28 29 namespace WebCore { 30 31 class SVGElement; 32 33 struct SVGAnimatedPropertyDescription { 34 // Empty value 35 SVGAnimatedPropertyDescription() 36 : m_element(0) 37 , m_attributeName(0) 38 { 39 } 40 41 // Deleted value 42 SVGAnimatedPropertyDescription(WTF::HashTableDeletedValueType) 43 : m_element(reinterpret_cast<SVGElement*>(-1)) 44 { 45 } 46 47 bool isHashTableDeletedValue() const 48 { 49 return m_element == reinterpret_cast<SVGElement*>(-1); 50 } 51 52 SVGAnimatedPropertyDescription(SVGElement* element, const AtomicString& attributeName) 53 : m_element(element) 54 , m_attributeName(attributeName.impl()) 55 { 56 ASSERT(m_element); 57 ASSERT(m_attributeName); 58 } 59 60 bool operator==(const SVGAnimatedPropertyDescription& other) const 61 { 62 return m_element == other.m_element && m_attributeName == other.m_attributeName; 63 } 64 65 SVGElement* m_element; 66 AtomicStringImpl* m_attributeName; 67 }; 68 69 struct SVGAnimatedPropertyDescriptionHash { 70 static unsigned hash(const SVGAnimatedPropertyDescription& key) 71 { 72 return StringHasher::hashMemory<sizeof(SVGAnimatedPropertyDescription)>(&key); 73 } 74 75 static bool equal(const SVGAnimatedPropertyDescription& a, const SVGAnimatedPropertyDescription& b) 76 { 77 return a == b; 78 } 79 80 static const bool safeToCompareToEmptyOrDeleted = true; 81 }; 82 83 struct SVGAnimatedPropertyDescriptionHashTraits : WTF::SimpleClassHashTraits<SVGAnimatedPropertyDescription> { }; 84 85 } 86 87 #endif // ENABLE(SVG) 88 #endif // SVGAnimatedPropertyDescription_h 89
