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1 /*
2 Copyright (c) 2010, Yahoo! Inc. All rights reserved.
3 Code licensed under the BSD License:
4 http://developer.yahoo.com/yui/license.html
5 version: 3.3.0
6 build: 3167
7 */
8 YUI.add('datasource-xmlschema', function(Y) {
9
10 /**
11  * Extends DataSource with schema-parsing on XML data.
12  *
13  * @module datasource
14  * @submodule datasource-xmlschema
15  */
16
17 /**
18  * Adds schema-parsing to the DataSource Utility.
19  * @class DataSourceXMLSchema
20  * @extends Plugin.Base
21  */    
22 var DataSourceXMLSchema = function() {
23     DataSourceXMLSchema.superclass.constructor.apply(this, arguments);
24 };
25
26 Y.mix(DataSourceXMLSchema, {
27     /**
28      * The namespace for the plugin. This will be the property on the host which
29      * references the plugin instance.
30      *
31      * @property NS
32      * @type String
33      * @static
34      * @final
35      * @value "schema"
36      */
37     NS: "schema",
38
39     /**
40      * Class name.
41      *
42      * @property NAME
43      * @type String
44      * @static
45      * @final
46      * @value "dataSourceXMLSchema"
47      */
48     NAME: "dataSourceXMLSchema",
49
50     /////////////////////////////////////////////////////////////////////////////
51     //
52     // DataSourceXMLSchema Attributes
53     //
54     /////////////////////////////////////////////////////////////////////////////
55
56     ATTRS: {
57         schema: {
58             //value: {}
59         }
60     }
61 });
62
63 Y.extend(DataSourceXMLSchema, Y.Plugin.Base, {
64     /**
65     * Internal init() handler.
66     *
67     * @method initializer
68     * @param config {Object} Config object.
69     * @private
70     */
71     initializer: function(config) {
72         this.doBefore("_defDataFn", this._beforeDefDataFn);
73     },
74
75     /**
76      * Parses raw data into a normalized response.
77      *
78      * @method _beforeDefDataFn
79      * <dl>
80      * <dt>tId (Number)</dt> <dd>Unique transaction ID.</dd>
81      * <dt>request (Object)</dt> <dd>The request.</dd>
82      * <dt>callback (Object)</dt> <dd>The callback object with the following properties:
83      *     <dl>
84      *         <dt>success (Function)</dt> <dd>Success handler.</dd>
85      *         <dt>failure (Function)</dt> <dd>Failure handler.</dd>
86      *     </dl>
87      * </dd>
88      * <dt>data (Object)</dt> <dd>Raw data.</dd>
89      * </dl>
90      * @protected
91      */
92     _beforeDefDataFn: function(e) {
93         var data = (Y.DataSource.IO && (this.get("host") instanceof Y.DataSource.IO) && e.data.responseXML && (e.data.responseXML.nodeType === 9)) ? e.data.responseXML : e.data,
94             response = Y.DataSchema.XML.apply.call(this, this.get("schema"), data);
95             
96         // Default
97         if(!response) {
98             response = {
99                 meta: {},
100                 results: data
101             };
102         }
103         
104         this.get("host").fire("response", Y.mix({response:response}, e));
105         return new Y.Do.Halt("DataSourceXMLSchema plugin halted _defDataFn");
106     }
107 });
108     
109 Y.namespace('Plugin').DataSourceXMLSchema = DataSourceXMLSchema;
110
111
112
113 }, '3.3.0' ,{requires:['datasource-local', 'plugin', 'dataschema-xml']});