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 <wtf/Assertions.h>
31
32static JSValueRef JSNodeList_item(JSContextRef context, JSObjectRef object, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
33{
34    UNUSED_PARAM(object);
35
36    if (argumentCount > 0) {
37        NodeList* nodeList = JSObjectGetPrivate(thisObject);
38        ASSERT(nodeList);
39        Node* node = NodeList_item(nodeList, (unsigned)JSValueToNumber(context, arguments[0], exception));
40        if (node)
41            return JSNode_new(context, node);
42    }
43
44    return JSValueMakeUndefined(context);
45}
46
47static JSStaticFunction JSNodeList_staticFunctions[] = {
48    { "item", JSNodeList_item, kJSPropertyAttributeDontDelete },
49    { 0, 0, 0 }
50};
51
52static JSValueRef JSNodeList_length(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
53{
54    UNUSED_PARAM(propertyName);
55    UNUSED_PARAM(exception);
56
57    NodeList* nodeList = JSObjectGetPrivate(thisObject);
58    ASSERT(nodeList);
59    return JSValueMakeNumber(context, NodeList_length(nodeList));
60}
61
62static JSStaticValue JSNodeList_staticValues[] = {
63    { "length", JSNodeList_length, NULL, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
64    { 0, 0, 0, 0 }
65};
66
67static JSValueRef JSNodeList_getProperty(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
68{
69    NodeList* nodeList = JSObjectGetPrivate(thisObject);
70    ASSERT(nodeList);
71    double index = JSValueToNumber(context, JSValueMakeString(context, propertyName), exception);
72    unsigned uindex = (unsigned)index;
73    if (uindex == index) { /* false for NaN */
74        Node* node = NodeList_item(nodeList, uindex);
75        if (node)
76            return JSNode_new(context, node);
77    }
78
79    return NULL;
80}
81
82static void JSNodeList_initialize(JSContextRef context, JSObjectRef thisObject)
83{
84    UNUSED_PARAM(context);
85
86    NodeList* nodeList = JSObjectGetPrivate(thisObject);
87    ASSERT(nodeList);
88
89    NodeList_ref(nodeList);
90}
91
92static void JSNodeList_finalize(JSObjectRef thisObject)
93{
94    NodeList* nodeList = JSObjectGetPrivate(thisObject);
95    ASSERT(nodeList);
96
97    NodeList_deref(nodeList);
98}
99
100static JSClassRef JSNodeList_class(JSContextRef context)
101{
102    UNUSED_PARAM(context);
103
104    static JSClassRef jsClass;
105    if (!jsClass) {
106        JSClassDefinition definition = kJSClassDefinitionEmpty;
107        definition.staticValues = JSNodeList_staticValues;
108        definition.staticFunctions = JSNodeList_staticFunctions;
109        definition.getProperty = JSNodeList_getProperty;
110        definition.initialize = JSNodeList_initialize;
111        definition.finalize = JSNodeList_finalize;
112
113        jsClass = JSClassCreate(&definition);
114    }
115
116    return jsClass;
117}
118
119JSObjectRef JSNodeList_new(JSContextRef context, NodeList* nodeList)
120{
121    return JSObjectMake(context, JSNodeList_class(context), nodeList);
122}
123