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 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef CustomElementDescriptor_h 32 #define CustomElementDescriptor_h 33 34 #include "platform/heap/Handle.h" 35 #include "wtf/HashTableDeletedValueType.h" 36 #include "wtf/text/AtomicString.h" 37 38 namespace WebCore { 39 40 struct CustomElementDescriptorHash; 41 42 // A Custom Element descriptor is everything necessary to match a 43 // Custom Element instance to a definition. 44 class CustomElementDescriptor { 45 ALLOW_ONLY_INLINE_ALLOCATION(); 46 public: 47 CustomElementDescriptor(const AtomicString& type, const AtomicString& namespaceURI, const AtomicString& localName) 48 : m_type(type) 49 , m_namespaceURI(namespaceURI) 50 , m_localName(localName) 51 { 52 } 53 54 ~CustomElementDescriptor() { } 55 56 // Specifies whether the custom element is in the HTML or SVG 57 // namespace. 58 const AtomicString& namespaceURI() const { return m_namespaceURI; } 59 60 // The tag name. 61 const AtomicString& localName() const { return m_localName; } 62 63 // The name of the definition. For custom tags, this is the tag 64 // name and the same as "localName". For type extensions, this is 65 // the value of the "is" attribute. 66 const AtomicString& type() const { return m_type; } 67 68 bool isTypeExtension() const { return m_type != m_localName; } 69 70 // Stuff for hashing. 71 72 CustomElementDescriptor() { } 73 explicit CustomElementDescriptor(WTF::HashTableDeletedValueType value) 74 : m_type(value) { } 75 bool isHashTableDeletedValue() const { return m_type.isHashTableDeletedValue(); } 76 77 bool operator==(const CustomElementDescriptor& other) const 78 { 79 return m_type == other.m_type 80 && m_localName == other.m_localName 81 && m_namespaceURI == other.m_namespaceURI; 82 } 83 84 private: 85 AtomicString m_type; 86 AtomicString m_namespaceURI; 87 AtomicString m_localName; 88 }; 89 90 } // namespace WebCore 91 92 namespace WTF { 93 94 template<typename T> struct DefaultHash; 95 template<> struct DefaultHash<WebCore::CustomElementDescriptor> { 96 typedef WebCore::CustomElementDescriptorHash Hash; 97 }; 98 99 } // namespace WTF 100 101 #endif // CustomElementDescriptor_h 102
