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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of Google Inc. nor the names of its contributors 15 * may be used to endorse or promote products derived from this 16 * 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 CustomElement_h 32 #define CustomElement_h 33 34 #include "core/dom/custom/CustomElementDefinition.h" 35 #include "wtf/HashMap.h" 36 #include "wtf/Noncopyable.h" 37 #include "wtf/PassRefPtr.h" 38 #include "wtf/RefPtr.h" 39 #include "wtf/Vector.h" 40 #include "wtf/text/AtomicString.h" 41 42 namespace WebCore { 43 44 class Document; 45 class Element; 46 47 class CustomElement { 48 public: 49 enum NameSet { 50 EmbedderNames = 1 << 0, 51 StandardNames = 1 << 1, 52 AllNames = EmbedderNames | StandardNames 53 }; 54 static bool isValidName(const AtomicString& name, NameSet validNames = AllNames); 55 static void addEmbedderCustomElementName(const AtomicString& name); 56 57 // API for registration contexts 58 static void define(Element*, PassRefPtr<CustomElementDefinition>); 59 60 // API for wrapper creation, which uses a definition as a key 61 static CustomElementDefinition* definitionFor(Element*); 62 63 // API for Element to kick off changes 64 65 static void didFinishParsingChildren(Element*); 66 static void attributeDidChange(Element*, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue); 67 static void didEnterDocument(Element*, const Document&); 68 static void didLeaveDocument(Element*, const Document&); 69 static void wasDestroyed(Element*); 70 71 private: 72 CustomElement(); 73 74 static Vector<AtomicString>& embedderCustomElementNames(); 75 76 // Maps resolved elements to their definitions 77 78 class DefinitionMap { 79 WTF_MAKE_NONCOPYABLE(DefinitionMap); 80 public: DefinitionMap()81 DefinitionMap() { } ~DefinitionMap()82 ~DefinitionMap() { } 83 84 void add(Element*, PassRefPtr<CustomElementDefinition>); remove(Element * element)85 void remove(Element* element) { m_definitions.remove(element); } get(Element * element)86 CustomElementDefinition* get(Element* element) const { return m_definitions.get(element); } 87 88 private: 89 typedef HashMap<Element*, RefPtr<CustomElementDefinition> > ElementDefinitionHashMap; 90 ElementDefinitionHashMap m_definitions; 91 }; 92 static DefinitionMap& definitions(); 93 }; 94 95 } 96 97 #endif // CustomElement_h 98