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 return toV8(V8NamedNodesCollection::create(namedItems)); 56 } 57 58 static v8::Handle<v8::Value> getItem(HTMLCollection* collection, v8::Handle<v8::Value> argument) 59 { 60 v8::Local<v8::Uint32> index = argument->ToArrayIndex(); 61 if (index.IsEmpty()) { 62 v8::Local<v8::String> asString = argument->ToString(); 63 if (asString.IsEmpty()) 64 return v8::Handle<v8::Value>(); 65 v8::Handle<v8::Value> result = getNamedItems(collection, toWebCoreString(asString)); 66 67 if (result.IsEmpty()) 68 return v8::Undefined(); 69 70 return result; 71 } 72 73 RefPtr<Node> result = collection->item(index->Uint32Value()); 74 return toV8(result.release()); 75 } 76 77 v8::Handle<v8::Value> V8HTMLCollection::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info) 78 { 79 INC_STATS("DOM.HTMLCollection.NamedPropertyGetter"); 80 // Search the prototype chain first. 81 v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name); 82 83 if (!value.IsEmpty()) 84 return value; 85 86 // Search local callback properties next to find IDL defined 87 // properties. 88 if (info.Holder()->HasRealNamedCallbackProperty(name)) 89 return v8::Handle<v8::Value>(); 90 91 // Finally, search the DOM structure. 92 HTMLCollection* imp = V8HTMLCollection::toNative(info.Holder()); 93 return getNamedItems(imp, v8StringToAtomicWebCoreString(name)); 94 } 95 96 v8::Handle<v8::Value> V8HTMLCollection::itemCallback(const v8::Arguments& args) 97 { 98 INC_STATS("DOM.HTMLCollection.item()"); 99 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 100 return getItem(imp, args[0]); 101 } 102 103 v8::Handle<v8::Value> V8HTMLCollection::namedItemCallback(const v8::Arguments& args) 104 { 105 INC_STATS("DOM.HTMLCollection.namedItem()"); 106 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 107 v8::Handle<v8::Value> result = getNamedItems(imp, toWebCoreString(args[0])); 108 109 if (result.IsEmpty()) 110 return v8::Undefined(); 111 112 return result; 113 } 114 115 v8::Handle<v8::Value> V8HTMLCollection::callAsFunctionCallback(const v8::Arguments& args) 116 { 117 INC_STATS("DOM.HTMLCollection.callAsFunction()"); 118 if (args.Length() < 1) 119 return v8::Undefined(); 120 121 HTMLCollection* imp = V8HTMLCollection::toNative(args.Holder()); 122 123 if (args.Length() == 1) 124 return getItem(imp, args[0]); 125 126 // If there is a second argument it is the index of the item we want. 127 String name = toWebCoreString(args[0]); 128 v8::Local<v8::Uint32> index = args[1]->ToArrayIndex(); 129 if (index.IsEmpty()) 130 return v8::Undefined(); 131 132 unsigned current = index->Uint32Value(); 133 Node* node = imp->namedItem(name); 134 while (node) { 135 if (!current) 136 return toV8(node); 137 138 node = imp->nextNamedItem(name); 139 current--; 140 } 141 142 return v8::Undefined(); 143 } 144 145 v8::Handle<v8::Value> toV8(HTMLCollection* impl) 146 { 147 if (impl->type() == DocAll) 148 return toV8(static_cast<HTMLAllCollection*>(impl)); 149 return V8HTMLCollection::wrap(impl); 150 } 151 152 } // namespace WebCore 153
