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 "JSStringRef.h"
30 #include "JSValueRef.h"
31 #include "Node.h"
32 #include "NodeList.h"
33 #include "UnusedParam.h"
34 #include <wtf/Assertions.h>
35
JSNode_appendChild(JSContextRef context,JSObjectRef function,JSObjectRef thisObject,size_t argumentCount,const JSValueRef arguments[],JSValueRef * exception)36 static JSValueRef JSNode_appendChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
37 {
38 UNUSED_PARAM(function);
39
40 /* Example of throwing a type error for invalid values */
41 if (!JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {
42 JSStringRef message = JSStringCreateWithUTF8CString("TypeError: appendChild can only be called on nodes");
43 *exception = JSValueMakeString(context, message);
44 JSStringRelease(message);
45 } else if (argumentCount < 1 || !JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {
46 JSStringRef message = JSStringCreateWithUTF8CString("TypeError: first argument to appendChild must be a node");
47 *exception = JSValueMakeString(context, message);
48 JSStringRelease(message);
49 } else {
50 Node* node = JSObjectGetPrivate(thisObject);
51 Node* child = JSObjectGetPrivate(JSValueToObject(context, arguments[0], NULL));
52
53 Node_appendChild(node, child);
54 }
55
56 return JSValueMakeUndefined(context);
57 }
58
JSNode_removeChild(JSContextRef context,JSObjectRef function,JSObjectRef thisObject,size_t argumentCount,const JSValueRef arguments[],JSValueRef * exception)59 static JSValueRef JSNode_removeChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
60 {
61 UNUSED_PARAM(function);
62
63 /* Example of ignoring invalid values */
64 if (argumentCount > 0) {
65 if (JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {
66 if (JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {
67 Node* node = JSObjectGetPrivate(thisObject);
68 Node* child = JSObjectGetPrivate(JSValueToObject(context, arguments[0], exception));
69
70 Node_removeChild(node, child);
71 }
72 }
73 }
74
75 return JSValueMakeUndefined(context);
76 }
77
JSNode_replaceChild(JSContextRef context,JSObjectRef function,JSObjectRef thisObject,size_t argumentCount,const JSValueRef arguments[],JSValueRef * exception)78 static JSValueRef JSNode_replaceChild(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
79 {
80 UNUSED_PARAM(function);
81
82 if (argumentCount > 1) {
83 if (JSValueIsObjectOfClass(context, thisObject, JSNode_class(context))) {
84 if (JSValueIsObjectOfClass(context, arguments[0], JSNode_class(context))) {
85 if (JSValueIsObjectOfClass(context, arguments[1], JSNode_class(context))) {
86 Node* node = JSObjectGetPrivate(thisObject);
87 Node* newChild = JSObjectGetPrivate(JSValueToObject(context, arguments[0], exception));
88 Node* oldChild = JSObjectGetPrivate(JSValueToObject(context, arguments[1], exception));
89
90 Node_replaceChild(node, newChild, oldChild);
91 }
92 }
93 }
94 }
95
96 return JSValueMakeUndefined(context);
97 }
98
99 static JSStaticFunction JSNode_staticFunctions[] = {
100 { "appendChild", JSNode_appendChild, kJSPropertyAttributeDontDelete },
101 { "removeChild", JSNode_removeChild, kJSPropertyAttributeDontDelete },
102 { "replaceChild", JSNode_replaceChild, kJSPropertyAttributeDontDelete },
103 { 0, 0, 0 }
104 };
105
JSNode_getNodeType(JSContextRef context,JSObjectRef object,JSStringRef propertyName,JSValueRef * exception)106 static JSValueRef JSNode_getNodeType(JSContextRef context, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)
107 {
108 UNUSED_PARAM(propertyName);
109 UNUSED_PARAM(exception);
110
111 Node* node = JSObjectGetPrivate(object);
112 if (node) {
113 JSStringRef nodeType = JSStringCreateWithUTF8CString(node->nodeType);
114 JSValueRef value = JSValueMakeString(context, nodeType);
115 JSStringRelease(nodeType);
116 return value;
117 }
118
119 return NULL;
120 }
121
JSNode_getChildNodes(JSContextRef context,JSObjectRef thisObject,JSStringRef propertyName,JSValueRef * exception)122 static JSValueRef JSNode_getChildNodes(JSContextRef context, JSObjectRef thisObject, JSStringRef propertyName, JSValueRef* exception)
123 {
124 UNUSED_PARAM(propertyName);
125 UNUSED_PARAM(exception);
126
127 Node* node = JSObjectGetPrivate(thisObject);
128 ASSERT(node);
129 return JSNodeList_new(context, NodeList_new(node));
130 }
131
JSNode_getFirstChild(JSContextRef context,JSObjectRef object,JSStringRef propertyName,JSValueRef * exception)132 static JSValueRef JSNode_getFirstChild(JSContextRef context, JSObjectRef object, JSStringRef propertyName, JSValueRef* exception)
133 {
134 UNUSED_PARAM(object);
135 UNUSED_PARAM(propertyName);
136 UNUSED_PARAM(exception);
137
138 return JSValueMakeUndefined(context);
139 }
140
141 static JSStaticValue JSNode_staticValues[] = {
142 { "nodeType", JSNode_getNodeType, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },
143 { "childNodes", JSNode_getChildNodes, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },
144 { "firstChild", JSNode_getFirstChild, NULL, kJSPropertyAttributeDontDelete | kJSPropertyAttributeReadOnly },
145 { 0, 0, 0, 0 }
146 };
147
JSNode_initialize(JSContextRef context,JSObjectRef object)148 static void JSNode_initialize(JSContextRef context, JSObjectRef object)
149 {
150 UNUSED_PARAM(context);
151
152 Node* node = JSObjectGetPrivate(object);
153 ASSERT(node);
154
155 Node_ref(node);
156 }
157
JSNode_finalize(JSObjectRef object)158 static void JSNode_finalize(JSObjectRef object)
159 {
160 Node* node = JSObjectGetPrivate(object);
161 ASSERT(node);
162
163 Node_deref(node);
164 }
165
JSNode_class(JSContextRef context)166 JSClassRef JSNode_class(JSContextRef context)
167 {
168 UNUSED_PARAM(context);
169
170 static JSClassRef jsClass;
171 if (!jsClass) {
172 JSClassDefinition definition = kJSClassDefinitionEmpty;
173 definition.staticValues = JSNode_staticValues;
174 definition.staticFunctions = JSNode_staticFunctions;
175 definition.initialize = JSNode_initialize;
176 definition.finalize = JSNode_finalize;
177
178 jsClass = JSClassCreate(&definition);
179 }
180 return jsClass;
181 }
182
JSNode_new(JSContextRef context,Node * node)183 JSObjectRef JSNode_new(JSContextRef context, Node* node)
184 {
185 return JSObjectMake(context, JSNode_class(context), node);
186 }
187
JSNode_construct(JSContextRef context,JSObjectRef object,size_t argumentCount,const JSValueRef arguments[],JSValueRef * exception)188 JSObjectRef JSNode_construct(JSContextRef context, JSObjectRef object, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
189 {
190 UNUSED_PARAM(object);
191 UNUSED_PARAM(argumentCount);
192 UNUSED_PARAM(arguments);
193 UNUSED_PARAM(exception);
194
195 return JSNode_new(context, Node_new());
196 }
197