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 "HTMLCollection.h"
33
34 #include "V8Binding.h"
35 #include "V8CustomBinding.h"
36 #include "V8NamedNodesCollection.h"
37 #include "V8Proxy.h"
38
39 namespace WebCore {
40
getNamedItems(HTMLCollection * collection,AtomicString name)41 static v8::Handle<v8::Value> getNamedItems(HTMLCollection* collection, AtomicString name)
42 {
43 Vector<RefPtr<Node> > namedItems;
44 collection->namedItems(name, namedItems);
45
46 if (!namedItems.size())
47 return v8::Handle<v8::Value>();
48
49 if (namedItems.size() == 1)
50 return V8DOMWrapper::convertNodeToV8Object(namedItems.at(0).release());
51
52 NodeList* list = new V8NamedNodesCollection(namedItems);
53 return V8DOMWrapper::convertToV8Object(V8ClassIndex::NODELIST, list);
54 }
55
getItem(HTMLCollection * collection,v8::Handle<v8::Value> argument)56 static v8::Handle<v8::Value> getItem(HTMLCollection* collection, v8::Handle<v8::Value> argument)
57 {
58 v8::Local<v8::Uint32> index = argument->ToArrayIndex();
59 if (index.IsEmpty()) {
60 v8::Handle<v8::Value> result = getNamedItems(collection, toWebCoreString(argument->ToString()));
61
62 if (result.IsEmpty())
63 return v8::Undefined();
64
65 return result;
66 }
67
68 RefPtr<Node> result = collection->item(index->Uint32Value());
69 return V8DOMWrapper::convertNodeToV8Object(result.release());
70 }
71
NAMED_PROPERTY_GETTER(HTMLCollection)72 NAMED_PROPERTY_GETTER(HTMLCollection)
73 {
74 INC_STATS("DOM.HTMLCollection.NamedPropertyGetter");
75 // Search the prototype chain first.
76 v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name);
77
78 if (!value.IsEmpty())
79 return value;
80
81 // Search local callback properties next to find IDL defined
82 // properties.
83 if (info.Holder()->HasRealNamedCallbackProperty(name))
84 return v8::Handle<v8::Value>();
85
86 // Finally, search the DOM structure.
87 HTMLCollection* imp = V8DOMWrapper::convertToNativeObject<HTMLCollection>(V8ClassIndex::HTMLCOLLECTION, info.Holder());
88 return getNamedItems(imp, v8StringToAtomicWebCoreString(name));
89 }
90
CALLBACK_FUNC_DECL(HTMLCollectionItem)91 CALLBACK_FUNC_DECL(HTMLCollectionItem)
92 {
93 INC_STATS("DOM.HTMLCollection.item()");
94 HTMLCollection* imp = V8DOMWrapper::convertToNativeObject<HTMLCollection>(V8ClassIndex::HTMLCOLLECTION, args.Holder());
95 return getItem(imp, args[0]);
96 }
97
CALLBACK_FUNC_DECL(HTMLCollectionNamedItem)98 CALLBACK_FUNC_DECL(HTMLCollectionNamedItem)
99 {
100 INC_STATS("DOM.HTMLCollection.namedItem()");
101 HTMLCollection* imp = V8DOMWrapper::convertToNativeObject<HTMLCollection>(V8ClassIndex::HTMLCOLLECTION, args.Holder());
102 v8::Handle<v8::Value> result = getNamedItems(imp, toWebCoreString(args[0]));
103
104 if (result.IsEmpty())
105 return v8::Undefined();
106
107 return result;
108 }
109
CALLBACK_FUNC_DECL(HTMLCollectionCallAsFunction)110 CALLBACK_FUNC_DECL(HTMLCollectionCallAsFunction)
111 {
112 INC_STATS("DOM.HTMLCollection.callAsFunction()");
113 if (args.Length() < 1)
114 return v8::Undefined();
115
116 HTMLCollection* imp = V8DOMWrapper::convertToNativeObject<HTMLCollection>(V8ClassIndex::HTMLCOLLECTION, args.Holder());
117
118 if (args.Length() == 1)
119 return getItem(imp, args[0]);
120
121 // If there is a second argument it is the index of the item we want.
122 String name = toWebCoreString(args[0]);
123 v8::Local<v8::Uint32> index = args[1]->ToArrayIndex();
124 if (index.IsEmpty())
125 return v8::Undefined();
126
127 unsigned current = index->Uint32Value();
128 Node* node = imp->namedItem(name);
129 while (node) {
130 if (!current)
131 return V8DOMWrapper::convertNodeToV8Object(node);
132
133 node = imp->nextNamedItem(name);
134 current--;
135 }
136
137 return v8::Undefined();
138 }
139
140 } // namespace WebCore
141