1 /* 2 * Copyright (C) 2012 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 #include "config.h" 32 #include "bindings/v8/CustomElementWrapper.h" 33 34 #include "V8HTMLElement.h" 35 #include "V8HTMLElementWrapperFactory.h" 36 #include "V8SVGElement.h" 37 #include "V8SVGElementWrapperFactory.h" 38 #include "bindings/v8/DOMDataStore.h" 39 #include "bindings/v8/DOMWrapperWorld.h" 40 #include "bindings/v8/V8PerContextData.h" 41 #include "core/dom/custom/CustomElement.h" 42 #include "core/html/HTMLElement.h" 43 #include "core/html/HTMLUnknownElement.h" 44 #include "core/svg/SVGElement.h" 45 46 namespace WebCore { 47 48 template<typename ElementType> 49 v8::Handle<v8::Object> createDirectWrapper(ElementType*, v8::Handle<v8::Object> creationContext, v8::Isolate*); 50 51 template<> 52 v8::Handle<v8::Object> createDirectWrapper<HTMLElement>(HTMLElement* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 53 { 54 return createV8HTMLDirectWrapper(element, creationContext, isolate); 55 } 56 57 template<> 58 v8::Handle<v8::Object> createDirectWrapper<SVGElement>(SVGElement* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 59 { 60 return createV8SVGDirectWrapper(element, creationContext, isolate); 61 } 62 63 template<typename ElementType> 64 v8::Handle<v8::Object> createFallbackWrapper(ElementType*, v8::Handle<v8::Object> creationContext, v8::Isolate*); 65 66 template<> 67 v8::Handle<v8::Object> createFallbackWrapper<HTMLElement>(HTMLElement* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 68 { 69 return createV8HTMLFallbackWrapper(toHTMLUnknownElement(element), creationContext, isolate); 70 } 71 72 template<> 73 v8::Handle<v8::Object> createFallbackWrapper<SVGElement>(SVGElement* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate) 74 { 75 return createV8SVGFallbackWrapper(element, creationContext, isolate); 76 } 77 78 template<typename ElementType> 79 v8::Handle<v8::Object> createUpgradeCandidateWrapper(ElementType* element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate, v8::Handle<v8::Object> (*createSpecificWrapper)(ElementType* element, v8::Handle<v8::Object> creationContext, v8::Isolate*)) 80 { 81 if (CustomElement::isValidName(element->localName())) 82 return createDirectWrapper(element, creationContext, isolate); 83 if (createSpecificWrapper) 84 return createSpecificWrapper(element, creationContext, isolate); 85 return createFallbackWrapper(element, creationContext, isolate); 86 } 87 88 template<typename ElementType, typename WrapperType> 89 v8::Handle<v8::Object> CustomElementWrapper<ElementType, WrapperType>::wrap(PassRefPtr<ElementType> element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate, v8::Handle<v8::Object> (*createSpecificWrapper)(ElementType* element, v8::Handle<v8::Object> creationContext, v8::Isolate*)) 90 { 91 ASSERT(DOMDataStore::getWrapper<V8Element>(element.get(), isolate).IsEmpty()); 92 93 // FIXME: creationContext.IsEmpty() should never happen. Remove 94 // this when callers (like InspectorController::inspect) are fixed 95 // to never pass an empty creation context. 96 v8::Handle<v8::Context> context = creationContext.IsEmpty() ? isolate->GetCurrentContext() : creationContext->CreationContext(); 97 98 if (!element->isUpgradedCustomElement() || DOMWrapperWorld::isolatedWorld(context)) 99 return createUpgradeCandidateWrapper(element.get(), creationContext, isolate, createSpecificWrapper); 100 101 V8PerContextData* perContextData = V8PerContextData::from(context); 102 if (!perContextData) 103 return v8::Handle<v8::Object>(); 104 105 CustomElementBinding* binding = perContextData->customElementBinding(CustomElement::definitionFor(element.get())); 106 v8::Handle<v8::Object> wrapper = V8DOMWrapper::createWrapper(creationContext, binding->wrapperType(), element.get(), isolate); 107 if (wrapper.IsEmpty()) 108 return v8::Handle<v8::Object>(); 109 110 wrapper->SetPrototype(binding->prototype()); 111 112 V8DOMWrapper::associateObjectWithWrapper<WrapperType>(element, binding->wrapperType(), wrapper, isolate, WrapperConfiguration::Dependent); 113 return wrapper; 114 } 115 116 template 117 class CustomElementWrapper<HTMLElement, V8HTMLElement>; 118 119 template 120 class CustomElementWrapper<SVGElement, V8SVGElement>; 121 122 } // namespace WebCore 123
