1 /* 2 * Copyright (C) 2007-2009 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 "Node.h" 33 34 #include "Document.h" 35 #include "EventListener.h" 36 37 #include "V8AbstractEventListener.h" 38 #include "V8Attr.h" 39 #include "V8Binding.h" 40 #include "V8CDATASection.h" 41 #include "V8Comment.h" 42 #include "V8CustomEventListener.h" 43 #include "V8Document.h" 44 #include "V8DocumentFragment.h" 45 #include "V8DocumentType.h" 46 #include "V8Element.h" 47 #include "V8Entity.h" 48 #include "V8EntityReference.h" 49 #include "V8Node.h" 50 #include "V8Notation.h" 51 #include "V8ProcessingInstruction.h" 52 #include "V8Proxy.h" 53 #include "V8Text.h" 54 55 #include <wtf/RefPtr.h> 56 57 namespace WebCore { 58 59 v8::Handle<v8::Value> V8Node::addEventListenerCallback(const v8::Arguments& args) 60 { 61 INC_STATS("DOM.Node.addEventListener()"); 62 Node* node = V8Node::toNative(args.Holder()); 63 64 RefPtr<EventListener> listener = V8DOMWrapper::getEventListener(node, args[1], false, ListenerFindOrCreate); 65 if (listener) { 66 String type = toWebCoreString(args[0]); 67 bool useCapture = args[2]->BooleanValue(); 68 node->addEventListener(type, listener, useCapture); 69 createHiddenDependency(args.Holder(), args[1], cacheIndex); 70 } 71 return v8::Undefined(); 72 } 73 74 v8::Handle<v8::Value> V8Node::removeEventListenerCallback(const v8::Arguments& args) 75 { 76 INC_STATS("DOM.Node.removeEventListener()"); 77 Node* node = V8Node::toNative(args.Holder()); 78 79 // It is possbile that the owner document of the node is detached 80 // from the frame. 81 // See issue http://b/878909 82 RefPtr<EventListener> listener = V8DOMWrapper::getEventListener(node, args[1], false, ListenerFindOnly); 83 if (listener) { 84 AtomicString type = v8ValueToAtomicWebCoreString(args[0]); 85 bool useCapture = args[2]->BooleanValue(); 86 node->removeEventListener(type, listener.get(), useCapture); 87 removeHiddenDependency(args.Holder(), args[1], cacheIndex); 88 } 89 90 return v8::Undefined(); 91 } 92 93 // This function is customized to take advantage of the optional 4th argument: shouldLazyAttach 94 v8::Handle<v8::Value> V8Node::insertBeforeCallback(const v8::Arguments& args) 95 { 96 INC_STATS("DOM.Node.insertBefore"); 97 v8::Handle<v8::Object> holder = args.Holder(); 98 Node* imp = V8Node::toNative(holder); 99 ExceptionCode ec = 0; 100 Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0; 101 Node* refChild = V8Node::HasInstance(args[1]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0; 102 bool success = imp->insertBefore(newChild, refChild, ec, true); 103 if (ec) { 104 V8Proxy::setDOMException(ec); 105 return v8::Handle<v8::Value>(); 106 } 107 if (success) 108 return args[0]; 109 return v8::Null(); 110 } 111 112 // This function is customized to take advantage of the optional 4th argument: shouldLazyAttach 113 v8::Handle<v8::Value> V8Node::replaceChildCallback(const v8::Arguments& args) 114 { 115 INC_STATS("DOM.Node.replaceChild"); 116 v8::Handle<v8::Object> holder = args.Holder(); 117 Node* imp = V8Node::toNative(holder); 118 ExceptionCode ec = 0; 119 Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0; 120 Node* oldChild = V8Node::HasInstance(args[1]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1])) : 0; 121 bool success = imp->replaceChild(newChild, oldChild, ec, true); 122 if (ec) { 123 V8Proxy::setDOMException(ec); 124 return v8::Handle<v8::Value>(); 125 } 126 if (success) 127 return args[1]; 128 return v8::Null(); 129 } 130 131 v8::Handle<v8::Value> V8Node::removeChildCallback(const v8::Arguments& args) 132 { 133 INC_STATS("DOM.Node.removeChild"); 134 v8::Handle<v8::Object> holder = args.Holder(); 135 Node* imp = V8Node::toNative(holder); 136 ExceptionCode ec = 0; 137 Node* oldChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0; 138 bool success = imp->removeChild(oldChild, ec); 139 if (ec) { 140 V8Proxy::setDOMException(ec); 141 return v8::Handle<v8::Value>(); 142 } 143 if (success) 144 return args[0]; 145 return v8::Null(); 146 } 147 148 // This function is customized to take advantage of the optional 4th argument: shouldLazyAttach 149 v8::Handle<v8::Value> V8Node::appendChildCallback(const v8::Arguments& args) 150 { 151 INC_STATS("DOM.Node.appendChild"); 152 v8::Handle<v8::Object> holder = args.Holder(); 153 Node* imp = V8Node::toNative(holder); 154 ExceptionCode ec = 0; 155 Node* newChild = V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0; 156 bool success = imp->appendChild(newChild, ec, true ); 157 if (ec) { 158 V8Proxy::setDOMException(ec); 159 return v8::Handle<v8::Value>(); 160 } 161 if (success) 162 return args[0]; 163 return v8::Null(); 164 } 165 166 v8::Handle<v8::Value> toV8(Node* impl, bool forceNewObject) 167 { 168 if (!impl) 169 return v8::Null(); 170 171 if (!forceNewObject) { 172 v8::Handle<v8::Value> wrapper = V8DOMWrapper::getWrapper(impl); 173 if (!wrapper.IsEmpty()) 174 return wrapper; 175 } 176 switch (impl->nodeType()) { 177 case Node::ELEMENT_NODE: 178 return toV8(static_cast<Element*>(impl), forceNewObject); 179 case Node::ATTRIBUTE_NODE: 180 return toV8(static_cast<Attr*>(impl), forceNewObject); 181 case Node::TEXT_NODE: 182 return toV8(static_cast<Text*>(impl), forceNewObject); 183 case Node::CDATA_SECTION_NODE: 184 return toV8(static_cast<CDATASection*>(impl), forceNewObject); 185 case Node::ENTITY_REFERENCE_NODE: 186 return toV8(static_cast<EntityReference*>(impl), forceNewObject); 187 case Node::ENTITY_NODE: 188 return toV8(static_cast<Entity*>(impl), forceNewObject); 189 case Node::PROCESSING_INSTRUCTION_NODE: 190 return toV8(static_cast<ProcessingInstruction*>(impl), forceNewObject); 191 case Node::COMMENT_NODE: 192 return toV8(static_cast<Comment*>(impl), forceNewObject); 193 case Node::DOCUMENT_NODE: 194 return toV8(static_cast<Document*>(impl), forceNewObject); 195 case Node::DOCUMENT_TYPE_NODE: 196 return toV8(static_cast<DocumentType*>(impl), forceNewObject); 197 case Node::DOCUMENT_FRAGMENT_NODE: 198 return toV8(static_cast<DocumentFragment*>(impl), forceNewObject); 199 case Node::NOTATION_NODE: 200 return toV8(static_cast<Notation*>(impl), forceNewObject); 201 default: break; // XPATH_NAMESPACE_NODE 202 } 203 return V8Node::wrap(impl, forceNewObject); 204 } 205 } // namespace WebCore 206
