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 return toV8(V8NamedNodesCollection::create(namedItems));
56 }
57
getItem(HTMLAllCollection * collection,v8::Handle<v8::Value> argument)58 static v8::Handle<v8::Value> getItem(HTMLAllCollection* collection, v8::Handle<v8::Value> argument)
59 {
60 v8::Local<v8::Uint32> index = argument->ToArrayIndex();
61 if (index.IsEmpty()) {
62 v8::Handle<v8::Value> result = getNamedItems(collection, toWebCoreString(argument->ToString()));
63
64 if (result.IsEmpty())
65 return v8::Undefined();
66
67 return result;
68 }
69
70 RefPtr<Node> result = collection->item(index->Uint32Value());
71 return toV8(result.release());
72 }
73
namedPropertyGetter(v8::Local<v8::String> name,const v8::AccessorInfo & info)74 v8::Handle<v8::Value> V8HTMLAllCollection::namedPropertyGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
75 {
76 INC_STATS("DOM.HTMLAllCollection.NamedPropertyGetter");
77 // Search the prototype chain first.
78 v8::Handle<v8::Value> value = info.Holder()->GetRealNamedPropertyInPrototypeChain(name);
79
80 if (!value.IsEmpty())
81 return value;
82
83 // Search local callback properties next to find IDL defined
84 // properties.
85 if (info.Holder()->HasRealNamedCallbackProperty(name))
86 return v8::Handle<v8::Value>();
87
88 // Finally, search the DOM structure.
89 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(info.Holder());
90 return getNamedItems(imp, v8StringToAtomicWebCoreString(name));
91 }
92
itemCallback(const v8::Arguments & args)93 v8::Handle<v8::Value> V8HTMLAllCollection::itemCallback(const v8::Arguments& args)
94 {
95 INC_STATS("DOM.HTMLAllCollection.item()");
96 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(args.Holder());
97 return getItem(imp, args[0]);
98 }
99
namedItemCallback(const v8::Arguments & args)100 v8::Handle<v8::Value> V8HTMLAllCollection::namedItemCallback(const v8::Arguments& args)
101 {
102 INC_STATS("DOM.HTMLAllCollection.namedItem()");
103 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(args.Holder());
104 v8::Handle<v8::Value> result = getNamedItems(imp, toWebCoreString(args[0]));
105
106 if (result.IsEmpty())
107 return v8::Undefined();
108
109 return result;
110 }
111
callAsFunctionCallback(const v8::Arguments & args)112 v8::Handle<v8::Value> V8HTMLAllCollection::callAsFunctionCallback(const v8::Arguments& args)
113 {
114 INC_STATS("DOM.HTMLAllCollection.callAsFunction()");
115 if (args.Length() < 1)
116 return v8::Undefined();
117
118 HTMLAllCollection* imp = V8HTMLAllCollection::toNative(args.Holder());
119
120 if (args.Length() == 1)
121 return getItem(imp, args[0]);
122
123 // If there is a second argument it is the index of the item we want.
124 String name = toWebCoreString(args[0]);
125 v8::Local<v8::Uint32> index = args[1]->ToArrayIndex();
126 if (index.IsEmpty())
127 return v8::Undefined();
128
129 unsigned current = index->Uint32Value();
130 Node* node = imp->namedItem(name);
131 while (node) {
132 if (!current)
133 return toV8(node);
134
135 node = imp->nextNamedItem(name);
136 current--;
137 }
138
139 return v8::Undefined();
140 }
141
142 } // namespace WebCore
143