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