1 /* 2 * Copyright (C) 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 "V8HTMLCollection.h" 33 34 #include "HTMLCollection.h" 35 #include "V8Binding.h" 36 #include "V8HTMLAllCollection.h" 37 #include "V8NamedNodesCollection.h" 38 #include "V8Node.h" 39 #include "V8NodeList.h" 40 #include "V8Proxy.h" 41 42 namespace WebCore { 43 44 static v8::Handle<v8::Value> getNamedItems(HTMLCollection* collection, AtomicString name) 45 { 46 Vector<RefPtr<Node> > namedItems; 47 collection->namedItems(name, namedItems); 48 49 if (!namedItems.size()) 50 return v8::Handle<v8::Value>(); 51 52 if (namedItems.size() == 1) 53 return toV8(namedItems.at(0).release()); 54 55 NodeList* list = new V8NamedNodesCollection(namedItems); 56 return toV8(list); 57 } 58 59 static v8::Handle<v8::Value> getItem(HTMLCollection* collection, v8::Handle<v8::Value> argument) 60 { 61 v8::Local<v8::Uint32> index = argument->ToArrayIndex(); 62 if (index.IsEmpty()) { 63 v8::Handle<v8::Value> result = getNamedItems(collection, toWebCoreString(argument->ToString())); 64 65 if (result.IsEmpty()) 66 return v8::Undefined(); 67 68 return result; 69 } 70 71 RefPtr<Node> result = collection->item(index->Uint32Value()); 72 return toV8(result.release()); 73 } 74 75 v8::Handle<v8::Value> V8HTMLCollection::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info) 76 { 77 INC_STATS("DOM.HTMLCollection.NamedPropertyGetter"); 78 // Search the prototype chain first. 79 v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name); 80 81 if (!value.IsEmpty()) 82 return value; 83 84 // Search local callback properties next to find IDL defined 85 // properties. 86 if (info.Holder()->HasRealNamedCallbackProperty(name)) 87 return v8::Handle<v8::Value>(); 88 89 // Finally, search the DOM structure. 90 HTMLCollection* imp = V8HTMLCollection::toNative(info.Holder()); 91 return getNamedItems(imp, v8StringToAtomicWebCoreString(name)); 92 } 93 94 v8::Handle<v8::Value> V8HTMLCollection::itemCallback(const v8::Arguments& args) 95 { 96 INC_STATS("DOM.HTMLCollection.item()"); 97 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 98 return getItem(imp, args[0]); 99 } 100 101 v8::Handle<v8::Value> V8HTMLCollection::namedItemCallback(const v8::Arguments& args) 102 { 103 INC_STATS("DOM.HTMLCollection.namedItem()"); 104 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 105 v8::Handle<v8::Value> result = getNamedItems(imp, toWebCoreString(args[0])); 106 107 if (result.IsEmpty()) 108 return v8::Undefined(); 109 110 return result; 111 } 112 113 v8::Handle<v8::Value> V8HTMLCollection::callAsFunctionCallback(const v8::Arguments& args) 114 { 115 INC_STATS("DOM.HTMLCollection.callAsFunction()"); 116 if (args.Length() < 1) 117 return v8::Undefined(); 118 119 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 120 121 if (args.Length() == 1) 122 return getItem(imp, args[0]); 123 124 // If there is a second argument it is the index of the item we want. 125 String name = toWebCoreString(args[0]); 126 v8::Local<v8::Uint32> index = args[1]->ToArrayIndex(); 127 if (index.IsEmpty()) 128 return v8::Undefined(); 129 130 unsigned current = index->Uint32Value(); 131 Node* node = imp->namedItem(name); 132 while (node) { 133 if (!current) 134 return toV8(node); 135 136 node = imp->nextNamedItem(name); 137 current--; 138 } 139 140 return v8::Undefined(); 141 } 142 143 v8::Handle<v8::Value> toV8(HTMLCollection* impl) 144 { 145 if (impl->type() == DocAll) 146 return toV8(static_cast<HTMLAllCollection*>(impl)); 147 return V8HTMLCollection::wrap(impl); 148 } 149 150 } // namespace WebCore 151
