chg: replaced ant with gradle
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334
modules/jala/code/Rss20Writer.js
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334
modules/jala/code/Rss20Writer.js
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//
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// Jala Project [http://opensvn.csie.org/traccgi/jala]
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//
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// Copyright 2004 ORF Online und Teletext GmbH
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//
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// Licensed under the Apache License, Version 2.0 (the ``License'');
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an ``AS IS'' BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// $Revision$
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// $LastChangedBy$
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// $LastChangedDate$
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// $HeadURL$
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//
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/**
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* @fileoverview Fields and methods of the jala.Rss20Writer class.
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*/
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// Define the global namespace for Jala modules
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if (!global.jala) {
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global.jala = {};
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}
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/**
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* Jala dependencies
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*/
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app.addRepository(getProperty("jala.dir", "modules/jala") +
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"/code/XmlWriter.js");
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/**
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* @class Class to create, modify and render standard-compliant
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* RSS 2.0 feeds.
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* @constructor
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* @extends jala.XmlWriter
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* @param {String} header Optional XML header.
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*/
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jala.Rss20Writer = function(header) {
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// defines the prototype of this constructor
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jala.XmlWriter.apply(this, arguments);
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// this should do the same but alas, helma throws
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// an error the very first time it is executed:
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//arguments.callee.prototype = new jala.XmlWriterInterface();
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var DATEFMT = "EEE, dd MMM yyyy HH:mm:ss Z";
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var CATEGORY = {
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name: "category",
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amount: Infinity,
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attributes: {
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name: "domain",
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}
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};
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var ITEM = {
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name: "item",
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amount: Infinity,
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value: [{
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name: "title",
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required: true
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}, {
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name: "link",
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}, {
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name: "description",
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}, {
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name: "author",
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}, {
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name: "comments",
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}, {
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name: "enclosure",
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attributes: [{
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name: "url",
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required: true
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}, {
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name: "length",
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required: true
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}, {
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name: "type",
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required: true
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}]
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}, {
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name: "guid",
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attributes: [{
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name: "isPermaLink",
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type: Boolean
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}]
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}, {
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name: "pubDate",
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type: Date,
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format: DATEFMT
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}, {
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name: "source",
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attributes: [{
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name: "url",
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required: true
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}]
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}]
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};
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var CHANNEL = {
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name: "channel",
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value: [{
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name: "title",
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required: true
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}, {
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name: "link",
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required: true
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}, {
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name: "description",
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required: true
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}, {
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name: "language",
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}, {
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name: "copyright",
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}, {
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name: "managingEditor",
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}, {
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name: "webMaster",
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}, {
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name: "pubDate",
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type: Date,
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format: DATEFMT
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}, {
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name: "lastBuildDate",
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type: Date,
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format: DATEFMT
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}, {
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name: "generator",
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}, {
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name: "docs",
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}, {
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name: "cloud",
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attributes: [{
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name: "domain",
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}, {
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name: "port",
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type: Number,
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format: "#"
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}, {
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name: "path",
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}, {
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name: "registerProcedure",
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}, {
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name: "protocol",
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}]
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}, {
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name: "ttl",
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type: Number,
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format: "#"
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}, {
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name: "rating",
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}, {
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name: "skipHours",
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}, {
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name: "skipDays",
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}]
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};
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var IMAGE = {
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name: "image",
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value: [{
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name: "url",
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required: true
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}, {
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name: "title",
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required: true
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}, {
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name: "link",
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required: true
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}, {
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name: "width",
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type: Number,
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format: "#"
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}, {
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name: "height",
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type: Number,
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format: "#"
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}, {
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name: "description",
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}]
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};
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var TEXTINPUT = {
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name: "textinput",
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value: [{
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name: "title",
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required: true
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}, {
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name: "description",
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required: true
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}, {
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name: "name",
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required: true
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}, {
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name: "link",
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required: true
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}]
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};
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var ROOT = {
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name: "rss",
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attributes: [{
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name: "version",
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value: "2.0"
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}]
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};
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var xmlroot = this.createElement(ROOT);
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var channel = this.createElement(CHANNEL);
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xmlroot.setValue(channel);
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/**
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* Get the writer's root element.
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* @returns The writer's root element.
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* @type jala.XmlWriter.XmlElement
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*/
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this.getRoot = function() {
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return xmlroot;
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};
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/**
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* Add child elements to the channel template.
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* @param {Array} ext List of additional child elements.
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*/
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this.extendChannel = function(ext) {
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this.extend(CHANNEL, ext);
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channel = this.createElement(CHANNEL);
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xmlroot.setValue(channel);
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return;
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};
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/**
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* Get the writer's channel element.
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* @returns The writer's channel element.
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* @type jala.XmlWriter.XmlElement
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*/
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this.getChannel = function() {
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return channel;
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};
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/**
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* Populate the channel element with data.
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* @param {Object} data An XmlWriter-compliant object structure.
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* @returns The populated channel element.
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* @type jala.XmlWriter.XmlElement
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*/
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this.setChannel = function(data) {
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return channel.populate(data);
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};
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/**
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* Add child elements to the item template.
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* @param {Array} ext List of additional child elements.
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*/
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this.extendItem = function(ext) {
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this.extend(ITEM, ext);
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return;
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};
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/**
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* Get a new and innocent item element.
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* @param {Object} data An XmlWriter-compliant object structure.
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* @returns A new and innocent item element.
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* @type jala.XmlWriter.XmlElement
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*/
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this.createItem = function(data) {
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var item = this.createElement(ITEM);
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item.populate(data);
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return item;
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};
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/**
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* Add an item element to the channel element.
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* @param {jala.XmlWriter.XmlElement} item The item element to add.
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*/
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this.addItem = function(item) {
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channel.addValue(item);
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return;
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};
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/**
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* Add a category element to an arbitrary element.
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* @param {String} name The name of the category.
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* @param {String} domain The domain of the category.
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* @param {jala.XmlWriter.XmlElement} parent The optional parent element.
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*/
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this.addCategory = function(name, domain, parent) {
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if (!parent)
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parent = channel;
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var cat = this.createElement(CATEGORY);
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cat.populate({
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value: name,
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attributes: {domain: domain}
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});
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parent.addValue(cat);
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return;
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};
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/**
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* Populate the image element with data.
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* @param {Object} data An XmlWriter-compliant object structure.
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*/
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this.setImage = function(data) {
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var image = this.createElement(IMAGE);
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image.populate(data);
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channel.setValue(image);
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return;
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};
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/**
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* Populate the textInput element with data.
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* @param {Object} data An XmlWriter-compliant object structure.
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*/
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this.setTextInput = function(data) {
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var textInput = this.createElement(TEXTINPUT);
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textInput.populate(data);
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channel.setValue(textInput);
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return;
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};
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return this;
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};
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