1/*
2 * Copyright (C) 2006 Apple Computer, 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "JSNode.h"
27#include "JSNodeList.h"
28#include "JSObjectRef.h"
29#include "JSValueRef.h"
30#include "UnusedParam.h"
31#include <wtf/Assertions.h>
32
33static JSValueRef JSNodeList_item(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
34{
35    UNUSED_PARAM(object);
36
37    if (argumentCount > 0) {
38        NodeList* nodeList = JSObjectGetPrivate(thisObject);
39        ASSERT(nodeList);
40        Node* node = NodeList_item(nodeList, (unsigned)JSValueToNumber(context, arguments[0], exception));
41        if (node)
42            return JSNode_new(context, node);
43    }
44
45    return JSValueMakeUndefined(context);
46}
47
48static JSStaticFunction JSNodeList_staticFunctions[] = {
49    { "item", JSNodeList_item, kJSPropertyAttributeDontDelete },
50    { 0, 0, 0 }
51};
52
53static JSValueRef JSNodeList_length(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
54{
55    UNUSED_PARAM(propertyName);
56    UNUSED_PARAM(exception);
57
58    NodeList* nodeList = JSObjectGetPrivate(thisObject);
59    ASSERT(nodeList);
60    return JSValueMakeNumber(context, NodeList_length(nodeList));
61}
62
63static JSStaticValue JSNodeList_staticValues[] = {
64    { "length", JSNodeList_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
65    { 0, 0, 0, 0 }
66};
67
68static JSValueRef JSNodeList_getProperty(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
69{
70    NodeList* nodeList = JSObjectGetPrivate(thisObject);
71    ASSERT(nodeList);
72    double index = JSValueToNumber(context, JSValueMakeString(context, propertyName), exception);
73    unsigned uindex = (unsigned)index;
74    if (uindex == index) { /* false for NaN */
75        Node* node = NodeList_item(nodeList, uindex);
76        if (node)
77            return JSNode_new(context, node);
78    }
79
80    return NULL;
81}
82
83static void JSNodeList_initialize(JSContextRef context, JSObjectRef thisObject)
84{
85    UNUSED_PARAM(context);
86
87    NodeList* nodeList = JSObjectGetPrivate(thisObject);
88    ASSERT(nodeList);
89
90    NodeList_ref(nodeList);
91}
92
93static void JSNodeList_finalize(JSObjectRef thisObject)
94{
95    NodeList* nodeList = JSObjectGetPrivate(thisObject);
96    ASSERT(nodeList);
97
98    NodeList_deref(nodeList);
99}
100
101static JSClassRef JSNodeList_class(JSContextRef context)
102{
103    UNUSED_PARAM(context);
104
105    static JSClassRef jsClass;
106    if (!jsClass) {
107        JSClassDefinition definition = kJSClassDefinitionEmpty;
108        definition.staticValues = JSNodeList_staticValues;
109        definition.staticFunctions = JSNodeList_staticFunctions;
110        definition.getProperty = JSNodeList_getProperty;
111        definition.initialize = JSNodeList_initialize;
112        definition.finalize = JSNodeList_finalize;
113
114        jsClass = JSClassCreate(&definition);
115    }
116
117    return jsClass;
118}
119
120JSObjectRef JSNodeList_new(JSContextRef context, NodeList* nodeList)
121{
122    return JSObjectMake(context, JSNodeList_class(context), nodeList);
123}
124