diff -r 000000000000 -r 40c8f766c9b8 src/cm/media/js/lib/yui/yui_3.0.0b1/build/dataschema/dataschema-xml-debug.js --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/cm/media/js/lib/yui/yui_3.0.0b1/build/dataschema/dataschema-xml-debug.js Mon Nov 23 15:14:29 2009 +0100 @@ -0,0 +1,165 @@ +/* +Copyright (c) 2009, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 3.0.0b1 +build: 1163 +*/ +YUI.add('dataschema-xml', function(Y) { + +/** + * Provides a DataSchema implementation which can be used to work with XML data. + * + * @module dataschema + * @submodule dataschema-xml + */ +var LANG = Y.Lang, + + /** + * XML subclass for the DataSchema Utility. + * @class DataSchema.XML + * @extends DataSchema.Base + * @static + */ + SchemaXML = { + + ///////////////////////////////////////////////////////////////////////////// + // + // DataSchema.XML static methods + // + ///////////////////////////////////////////////////////////////////////////// + /** + * Applies a given schema to given XML data. + * + * @method apply + * @param schema {Object} Schema to apply. + * @param data {XMLDoc} XML document. + * @return {Object} Schema-parsed data. + * @static + */ + apply: function(schema, data) { + var xmldoc = data, + data_out = {results:[],meta:{}}; + + if(xmldoc && xmldoc.nodeType && xmldoc.nodeType === 9 && schema) { + // Parse results data + data_out = SchemaXML._parseResults(schema, xmldoc, data_out); + + // Parse meta data + data_out = SchemaXML._parseMeta(schema.metaFields, xmldoc, data_out); + } + else { + Y.log("XML data could not be schema-parsed: " + Y.dump(data) + " " + Y.dump(data), "error", "dataschema-xml"); + data_out.error = new Error("XML schema parse failure"); + } + + return data_out; + }, + + /** + * Get an XPath-specified value for a given field from an XML node or document. + * + * @method _getLocationValue + * @param field {String | Object} Field definition. + * @param context {Object} XML node or document to search within. + * @return {Object} Data value or null. + * @static + * @protected + */ + _getLocationValue: function(field, context) { + var locator = field.locator || field.key || field, + xmldoc = context.ownerDocument || context, + result, res, value = null; + + try { + // Standards mode + if(!LANG.isUndefined(xmldoc.evaluate)) { + result = xmldoc.evaluate(locator, context, xmldoc.createNSResolver(!context.ownerDocument ? context.documentElement : context.ownerDocument.documentElement), 0, null); + while(res = result.iterateNext()) { + value = res.textContent; + } + } + // IE mode + else { + xmldoc.setProperty("SelectionLanguage", "XPath"); + result = context.selectNodes(locator)[0]; + value = result.value || result.text || null; + } + return Y.DataSchema.Base.parse(value, field); + + } + catch(e) { + } + }, + + /** + * Parses results data according to schema + * + * @method _parseMeta + * @param xmldoc_in {Object} XML document parse. + * @param data_out {Object} In-progress schema-parsed data to update. + * @return {Object} Schema-parsed data. + * @static + * @protected + */ + _parseMeta: function(metaFields, xmldoc_in, data_out) { + if(LANG.isObject(metaFields)) { + var key, + xmldoc = xmldoc_in.ownerDocument || xmldoc_in; + + for(key in metaFields) { + if (metaFields.hasOwnProperty(key)) { + data_out.meta[key] = SchemaXML._getLocationValue(metaFields[key], xmldoc); + } + } + } + return data_out; + }, + + /** + * Schema-parsed list of results from full data + * + * @method _parseResults + * @param schema {Object} Schema to parse against. + * @param xmldoc_in {Object} XML document parse. + * @param data_out {Object} In-progress schema-parsed data to update. + * @return {Object} Schema-parsed data. + * @static + * @protected + */ + _parseResults: function(schema, xmldoc_in, data_out) { + if(schema.resultListLocator && LANG.isArray(schema.resultFields)) { + var nodeList = xmldoc_in.getElementsByTagName(schema.resultListLocator), + fields = schema.resultFields, + results = [], + node, field, result, i, j; + + if(nodeList.length) { + // Loop through each result node + for(i=nodeList.length-1; i>= 0; i--) { + result = {}; + node = nodeList[i]; + + // Find each field value + for(j=fields.length-1; j>= 0; j--) { + field = fields[j]; + result[field.key || field] = SchemaXML._getLocationValue(field, node); + } + results[i] = result; + } + + data_out.results = results; + } + else { + data_out.error = new Error("XML schema result nodes retrieval failure"); + } + } + return data_out; + } + }; + +Y.DataSchema.XML = Y.mix(SchemaXML, Y.DataSchema.Base); + + + +}, '3.0.0b1' ,{requires:['dataschema-base']});