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 "bindings/core/v8/V8HTMLAllCollection.h"
33
34 #include "bindings/core/v8/V8Binding.h"
35 #include "bindings/core/v8/V8Element.h"
36 #include "bindings/core/v8/V8NodeList.h"
37 #include "core/dom/StaticNodeList.h"
38 #include "core/frame/UseCounter.h"
39 #include "core/html/HTMLAllCollection.h"
40
41 namespace blink {
42
43 template<class CallbackInfo>
getNamedItems(HTMLAllCollection * collection,AtomicString name,const CallbackInfo & info)44 static v8::Handle<v8::Value> getNamedItems(HTMLAllCollection* collection, AtomicString name, const CallbackInfo& info)
45 {
46 WillBeHeapVector<RefPtrWillBeMember<Element> > namedItems;
47 collection->namedItems(name, namedItems);
48
49 if (!namedItems.size())
50 return v8Undefined();
51
52 if (namedItems.size() == 1)
53 return toV8(namedItems.at(0).release(), info.Holder(), info.GetIsolate());
54
55 // FIXME: HTML5 specification says this should be a HTMLCollection.
56 // http://www.whatwg.org/specs/web-apps/current-work/multipage/common-dom-interfaces.html#htmlallcollection
57 //
58 // FIXME: Oilpan: explicitly convert adopt()'s result so as to
59 // disambiguate the (implicit) conversion of its
60 // PassRefPtrWillBeRawPtr<StaticElementList> result -- the
61 // other toV8() overload that introduces the ambiguity is
62 // toV8(NodeList*, ...).
63 //
64 // When adopt() no longer uses transition types, the conversion
65 // can be removed.
66 return toV8(PassRefPtrWillBeRawPtr<NodeList>(StaticElementList::adopt(namedItems)), info.Holder(), info.GetIsolate());
67 }
68
69 template<class CallbackInfo>
getItem(HTMLAllCollection * collection,v8::Handle<v8::Value> argument,const CallbackInfo & info)70 static v8::Handle<v8::Value> getItem(HTMLAllCollection* collection, v8::Handle<v8::Value> argument, const CallbackInfo& info)
71 {
72 v8::Local<v8::Uint32> index = argument->ToArrayIndex();
73 if (index.IsEmpty()) {
74 TOSTRING_DEFAULT(V8StringResource<>, name, argument, v8::Undefined(info.GetIsolate()));
75 v8::Handle<v8::Value> result = getNamedItems(collection, name, info);
76
77 if (result.IsEmpty())
78 return v8::Undefined(info.GetIsolate());
79
80 return result;
81 }
82
83 RefPtrWillBeRawPtr<Element> result = collection->item(index->Uint32Value());
84 return toV8(result.release(), info.Holder(), info.GetIsolate());
85 }
86
itemMethodCustom(const v8::FunctionCallbackInfo<v8::Value> & info)87 void V8HTMLAllCollection::itemMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
88 {
89 HTMLAllCollection* impl = V8HTMLAllCollection::toImpl(info.Holder());
90 v8SetReturnValue(info, getItem(impl, info[0], info));
91 }
92
legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value> & info)93 void V8HTMLAllCollection::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
94 {
95 if (info.Length() < 1)
96 return;
97
98 HTMLAllCollection* impl = V8HTMLAllCollection::toImpl(info.Holder());
99 Node& ownerNode = impl->ownerNode();
100
101 UseCounter::count(ownerNode.document(), UseCounter::DocumentAllLegacyCall);
102
103 if (info.Length() == 1) {
104 v8SetReturnValue(info, getItem(impl, info[0], info));
105 return;
106 }
107
108 // If there is a second argument it is the index of the item we want.
109 TOSTRING_VOID(V8StringResource<>, name, info[0]);
110 v8::Local<v8::Uint32> index = info[1]->ToArrayIndex();
111 if (index.IsEmpty())
112 return;
113
114 if (Node* node = impl->namedItemWithIndex(name, index->Uint32Value())) {
115 v8SetReturnValueFast(info, node, impl);
116 return;
117 }
118 }
119
120 } // namespace blink
121