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annotate vakata-jstree-3.3.5/src/jstree.massload.js @ 0:0358f6f78adf draft

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planemo upload commit 841d8b22bf9f1aaed6bfe8344b60617f45b275b2-dirty
author mingchen0919
date Fri, 14 Dec 2018 00:40:15 -0500
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1 /**
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2 * ### Massload plugin
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3 *
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4 * Adds massload functionality to jsTree, so that multiple nodes can be loaded in a single request (only useful with lazy loading).
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5 */
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6 /*globals jQuery, define, exports, require, document */
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7 (function (factory) {
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8 "use strict";
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9 if (typeof define === 'function' && define.amd) {
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10 define('jstree.massload', ['jquery','jstree'], factory);
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11 }
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12 else if(typeof exports === 'object') {
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13 factory(require('jquery'), require('jstree'));
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14 }
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15 else {
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16 factory(jQuery, jQuery.jstree);
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17 }
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18 }(function ($, jstree, undefined) {
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19 "use strict";
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20
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21 if($.jstree.plugins.massload) { return; }
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22
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23 /**
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24 * massload configuration
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25 *
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26 * It is possible to set this to a standard jQuery-like AJAX config.
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27 * In addition to the standard jQuery ajax options here you can supply functions for `data` and `url`, the functions will be run in the current instance's scope and a param will be passed indicating which node IDs need to be loaded, the return value of those functions will be used.
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28 *
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29 * You can also set this to a function, that function will receive the node IDs being loaded as argument and a second param which is a function (callback) which should be called with the result.
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30 *
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31 * Both the AJAX and the function approach rely on the same return value - an object where the keys are the node IDs, and the value is the children of that node as an array.
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32 *
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33 * {
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34 * "id1" : [{ "text" : "Child of ID1", "id" : "c1" }, { "text" : "Another child of ID1", "id" : "c2" }],
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35 * "id2" : [{ "text" : "Child of ID2", "id" : "c3" }]
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36 * }
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37 *
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38 * @name $.jstree.defaults.massload
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39 * @plugin massload
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40 */
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41 $.jstree.defaults.massload = null;
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42 $.jstree.plugins.massload = function (options, parent) {
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43 this.init = function (el, options) {
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44 this._data.massload = {};
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45 parent.init.call(this, el, options);
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46 };
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47 this._load_nodes = function (nodes, callback, is_callback, force_reload) {
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48 var s = this.settings.massload,
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49 nodesString = JSON.stringify(nodes),
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50 toLoad = [],
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51 m = this._model.data,
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52 i, j, dom;
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53 if (!is_callback) {
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54 for(i = 0, j = nodes.length; i < j; i++) {
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55 if(!m[nodes[i]] || ( (!m[nodes[i]].state.loaded && !m[nodes[i]].state.failed) || force_reload) ) {
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56 toLoad.push(nodes[i]);
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57 dom = this.get_node(nodes[i], true);
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58 if (dom && dom.length) {
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59 dom.addClass("jstree-loading").attr('aria-busy',true);
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60 }
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61 }
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62 }
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63 this._data.massload = {};
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64 if (toLoad.length) {
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65 if($.isFunction(s)) {
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66 return s.call(this, toLoad, $.proxy(function (data) {
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67 var i, j;
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68 if(data) {
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69 for(i in data) {
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70 if(data.hasOwnProperty(i)) {
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71 this._data.massload[i] = data[i];
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72 }
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73 }
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74 }
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75 for(i = 0, j = nodes.length; i < j; i++) {
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76 dom = this.get_node(nodes[i], true);
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77 if (dom && dom.length) {
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78 dom.removeClass("jstree-loading").attr('aria-busy',false);
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79 }
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80 }
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81 parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
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82 }, this));
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83 }
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84 if(typeof s === 'object' && s && s.url) {
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85 s = $.extend(true, {}, s);
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86 if($.isFunction(s.url)) {
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87 s.url = s.url.call(this, toLoad);
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88 }
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89 if($.isFunction(s.data)) {
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90 s.data = s.data.call(this, toLoad);
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91 }
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92 return $.ajax(s)
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93 .done($.proxy(function (data,t,x) {
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94 var i, j;
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95 if(data) {
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96 for(i in data) {
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97 if(data.hasOwnProperty(i)) {
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98 this._data.massload[i] = data[i];
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99 }
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100 }
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101 }
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102 for(i = 0, j = nodes.length; i < j; i++) {
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103 dom = this.get_node(nodes[i], true);
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104 if (dom && dom.length) {
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105 dom.removeClass("jstree-loading").attr('aria-busy',false);
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106 }
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107 }
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108 parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
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109 }, this))
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110 .fail($.proxy(function (f) {
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111 parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
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112 }, this));
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113 }
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114 }
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115 }
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116 return parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
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117 };
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118 this._load_node = function (obj, callback) {
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119 var data = this._data.massload[obj.id],
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120 rslt = null, dom;
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121 if(data) {
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122 rslt = this[typeof data === 'string' ? '_append_html_data' : '_append_json_data'](
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123 obj,
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124 typeof data === 'string' ? $($.parseHTML(data)).filter(function () { return this.nodeType !== 3; }) : data,
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125 function (status) { callback.call(this, status); }
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126 );
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127 dom = this.get_node(obj.id, true);
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128 if (dom && dom.length) {
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129 dom.removeClass("jstree-loading").attr('aria-busy',false);
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130 }
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131 delete this._data.massload[obj.id];
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132 return rslt;
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133 }
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134 return parent._load_node.call(this, obj, callback);
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135 };
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136 };
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137 }));