2 * Ext JS Library 0.30
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3 * Copyright(c) 2006-2009, Ext JS, LLC.
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4 * licensing@extjs.com
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6 * http://extjs.com/license
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9 tx.Importer = function(){
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10 function chooseFile(callback){
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11 var file = new air.File(air.File.documentsDirectory.nativePath);
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12 var filter = new air.FileFilter("Tasks XML File", "*.xml");
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14 file.addEventListener('select', function(e){
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15 doImport(e.target, callback);
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18 file.browseForOpen('Open', [filter]);
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23 * This import function used to be clean and simple. The addition of asynchronous import and
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24 * a progress bar changed that quickly. :)
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26 function doImport(file, callback){
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28 Ext.Msg.progress('Import', 'Reading file...');
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30 var listTable = tx.data.conn.getTable('list', 'listId');
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31 var taskTable = tx.data.conn.getTable('task', 'taskId');
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33 var visibleIndex = 0;
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34 var doUpdate = true;
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35 var f = String.format;
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37 function getProgress(index){
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39 return (.8 * index) / taskCount;
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45 function readFile(){
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46 var stream = new air.FileStream();
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47 stream.open(file, air.FileMode.READ);
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48 var xml = stream.readUTFBytes(stream.bytesAvailable);
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51 Ext.Msg.updateProgress(.1, 'Parsing...');
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52 parse.defer(10, null, [xml]);
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55 function parse(xml){
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57 var doc = new runtime.flash.xml.XMLDocument();
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58 doc.ignoreWhite = true;
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61 var lists = doc.firstChild.childNodes;
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62 var count = lists.length;
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64 for (var i = 0; i < count; i++) {
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65 taskCount += lists[i].childNodes.length;
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67 Ext.Msg.updateProgress(.15, '', 'Loading Tasks...');
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68 loadLists(lists, 0);
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71 alert('An error occured while trying to import the selected file.');
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75 function loadLists(lists, index){
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76 if(index < lists.length){
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77 var list = lists[index];
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78 listTable.save(list.attributes);
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79 nextTask(list.childNodes, 0, lists, index);
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82 Ext.Msg.updateProgress(1, '', 'Completing import...');
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87 function nextTask(tasks, index, lists, listIndex){
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88 if(index < tasks.length){
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89 Ext.Msg.updateProgress(
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90 getProgress(++visibleIndex),
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91 f('{0} of {1}', visibleIndex, taskCount)
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93 loadTasks.defer(250, window, [tasks, index, lists, listIndex]);
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96 loadLists(lists, ++listIndex);
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100 function loadTasks(tasks, index, lists, listIndex){
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101 taskTable.save(tasks[index].attributes);
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102 nextTask(tasks, ++index, lists, listIndex);
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105 readFile.defer(10);
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108 this.doImport = function(callback){
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109 chooseFile(callback);
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