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 "V8HTMLAllCollection.h"
33
34 #include "HTMLAllCollection.h"
35
36 #include "V8Binding.h"
37 #include "V8NamedNodesCollection.h"
38 #include "V8Node.h"
39 #include "V8NodeList.h"
40 #include "V8Proxy.h"
41
42 namespace WebCore {
43
getNamedItems(HTMLAllCollection * collection,AtomicString name)44 static v8::Handle<v8::Value> getNamedItems(HTMLAllCollection* 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
getItem(HTMLAllCollection * collection,v8::Handle<v8::Value> argument)59 static v8::Handle<v8::Value> getItem(HTMLAllCollection* 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
namedPropertyGetter(v8::Local<v8::String> name,const v8::AccessorInfo & info)75 v8::Handle<v8::Value> V8HTMLAllCollection::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
76 {
77 INC_STATS("DOM.HTMLAllCollection.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 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(info.Holder());
91 return getNamedItems(imp, v8StringToAtomicWebCoreString(name));
92 }
93
itemCallback(const v8::Arguments & args)94 v8::Handle<v8::Value> V8HTMLAllCollection::itemCallback(const v8::Arguments& args)
95 {
96 INC_STATS("DOM.HTMLAllCollection.item()");
97 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(args.Holder());
98 return getItem(imp, args[0]);
99 }
100
namedItemCallback(const v8::Arguments & args)101 v8::Handle<v8::Value> V8HTMLAllCollection::namedItemCallback(const v8::Arguments& args)
102 {
103 INC_STATS("DOM.HTMLAllCollection.namedItem()");
104 HTMLAllCollection* imp = V8HTMLAllCollection::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
callAsFunctionCallback(const v8::Arguments & args)113 v8::Handle<v8::Value> V8HTMLAllCollection::callAsFunctionCallback(const v8::Arguments& args)
114 {
115 INC_STATS("DOM.HTMLAllCollection.callAsFunction()");
116 if (args.Length() < 1)
117 return v8::Undefined();
118
119 HTMLAllCollection* imp = V8HTMLAllCollection::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 } // namespace WebCore
144