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
41namespace blink {
42
43template<class CallbackInfo>
44static 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
69template<class CallbackInfo>
70static 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
87void 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
93void 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