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1 /*!
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2 * jQuery UI Selectable 1.10.4
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3 * http://jqueryui.com
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4 *
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5 * Copyright 2014 jQuery Foundation and other contributors
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6 * Released under the MIT license.
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7 * http://jquery.org/license
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8 *
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9 * http://api.jqueryui.com/selectable/
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10 *
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11 * Depends:
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12 * jquery.ui.core.js
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13 * jquery.ui.mouse.js
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14 * jquery.ui.widget.js
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15 */
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16 (function( $, undefined ) {
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17
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18 $.widget("ui.selectable", $.ui.mouse, {
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19 version: "1.10.4",
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20 options: {
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21 appendTo: "body",
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22 autoRefresh: true,
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23 distance: 0,
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24 filter: "*",
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25 tolerance: "touch",
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26
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27 // callbacks
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28 selected: null,
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29 selecting: null,
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30 start: null,
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31 stop: null,
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32 unselected: null,
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33 unselecting: null
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34 },
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35 _create: function() {
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36 var selectees,
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37 that = this;
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38
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39 this.element.addClass("ui-selectable");
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40
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41 this.dragged = false;
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42
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43 // cache selectee children based on filter
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44 this.refresh = function() {
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45 selectees = $(that.options.filter, that.element[0]);
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46 selectees.addClass("ui-selectee");
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47 selectees.each(function() {
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48 var $this = $(this),
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49 pos = $this.offset();
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50 $.data(this, "selectable-item", {
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51 element: this,
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52 $element: $this,
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53 left: pos.left,
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54 top: pos.top,
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55 right: pos.left + $this.outerWidth(),
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56 bottom: pos.top + $this.outerHeight(),
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57 startselected: false,
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58 selected: $this.hasClass("ui-selected"),
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59 selecting: $this.hasClass("ui-selecting"),
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60 unselecting: $this.hasClass("ui-unselecting")
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61 });
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62 });
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63 };
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64 this.refresh();
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65
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66 this.selectees = selectees.addClass("ui-selectee");
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67
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68 this._mouseInit();
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69
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70 this.helper = $("<div class='ui-selectable-helper'></div>");
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71 },
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72
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73 _destroy: function() {
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74 this.selectees
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75 .removeClass("ui-selectee")
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76 .removeData("selectable-item");
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77 this.element
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78 .removeClass("ui-selectable ui-selectable-disabled");
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79 this._mouseDestroy();
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80 },
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81
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82 _mouseStart: function(event) {
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83 var that = this,
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84 options = this.options;
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85
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86 this.opos = [event.pageX, event.pageY];
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87
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88 if (this.options.disabled) {
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89 return;
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90 }
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91
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92 this.selectees = $(options.filter, this.element[0]);
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93
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94 this._trigger("start", event);
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95
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96 $(options.appendTo).append(this.helper);
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97 // position helper (lasso)
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98 this.helper.css({
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99 "left": event.pageX,
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100 "top": event.pageY,
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101 "width": 0,
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102 "height": 0
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103 });
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104
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105 if (options.autoRefresh) {
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106 this.refresh();
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107 }
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108
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109 this.selectees.filter(".ui-selected").each(function() {
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110 var selectee = $.data(this, "selectable-item");
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111 selectee.startselected = true;
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112 if (!event.metaKey && !event.ctrlKey) {
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113 selectee.$element.removeClass("ui-selected");
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114 selectee.selected = false;
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115 selectee.$element.addClass("ui-unselecting");
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116 selectee.unselecting = true;
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117 // selectable UNSELECTING callback
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118 that._trigger("unselecting", event, {
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119 unselecting: selectee.element
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120 });
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121 }
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122 });
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123
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124 $(event.target).parents().addBack().each(function() {
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125 var doSelect,
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126 selectee = $.data(this, "selectable-item");
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127 if (selectee) {
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128 doSelect = (!event.metaKey && !event.ctrlKey) || !selectee.$element.hasClass("ui-selected");
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129 selectee.$element
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130 .removeClass(doSelect ? "ui-unselecting" : "ui-selected")
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131 .addClass(doSelect ? "ui-selecting" : "ui-unselecting");
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132 selectee.unselecting = !doSelect;
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133 selectee.selecting = doSelect;
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134 selectee.selected = doSelect;
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135 // selectable (UN)SELECTING callback
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136 if (doSelect) {
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137 that._trigger("selecting", event, {
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138 selecting: selectee.element
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139 });
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140 } else {
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141 that._trigger("unselecting", event, {
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142 unselecting: selectee.element
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143 });
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144 }
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145 return false;
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146 }
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147 });
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148
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149 },
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150
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151 _mouseDrag: function(event) {
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152
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153 this.dragged = true;
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154
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155 if (this.options.disabled) {
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156 return;
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157 }
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158
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159 var tmp,
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160 that = this,
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161 options = this.options,
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162 x1 = this.opos[0],
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163 y1 = this.opos[1],
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164 x2 = event.pageX,
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165 y2 = event.pageY;
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166
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167 if (x1 > x2) { tmp = x2; x2 = x1; x1 = tmp; }
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168 if (y1 > y2) { tmp = y2; y2 = y1; y1 = tmp; }
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169 this.helper.css({left: x1, top: y1, width: x2-x1, height: y2-y1});
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170
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171 this.selectees.each(function() {
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172 var selectee = $.data(this, "selectable-item"),
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173 hit = false;
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174
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175 //prevent helper from being selected if appendTo: selectable
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176 if (!selectee || selectee.element === that.element[0]) {
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177 return;
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178 }
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179
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180 if (options.tolerance === "touch") {
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181 hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) );
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182 } else if (options.tolerance === "fit") {
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183 hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2);
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184 }
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185
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186 if (hit) {
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187 // SELECT
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188 if (selectee.selected) {
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189 selectee.$element.removeClass("ui-selected");
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190 selectee.selected = false;
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191 }
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192 if (selectee.unselecting) {
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193 selectee.$element.removeClass("ui-unselecting");
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194 selectee.unselecting = false;
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195 }
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196 if (!selectee.selecting) {
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197 selectee.$element.addClass("ui-selecting");
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198 selectee.selecting = true;
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199 // selectable SELECTING callback
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200 that._trigger("selecting", event, {
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201 selecting: selectee.element
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202 });
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203 }
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204 } else {
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205 // UNSELECT
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206 if (selectee.selecting) {
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207 if ((event.metaKey || event.ctrlKey) && selectee.startselected) {
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208 selectee.$element.removeClass("ui-selecting");
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209 selectee.selecting = false;
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210 selectee.$element.addClass("ui-selected");
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211 selectee.selected = true;
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212 } else {
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213 selectee.$element.removeClass("ui-selecting");
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214 selectee.selecting = false;
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215 if (selectee.startselected) {
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216 selectee.$element.addClass("ui-unselecting");
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217 selectee.unselecting = true;
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218 }
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219 // selectable UNSELECTING callback
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220 that._trigger("unselecting", event, {
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221 unselecting: selectee.element
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222 });
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223 }
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224 }
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225 if (selectee.selected) {
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226 if (!event.metaKey && !event.ctrlKey && !selectee.startselected) {
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227 selectee.$element.removeClass("ui-selected");
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228 selectee.selected = false;
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229
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230 selectee.$element.addClass("ui-unselecting");
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231 selectee.unselecting = true;
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232 // selectable UNSELECTING callback
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233 that._trigger("unselecting", event, {
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234 unselecting: selectee.element
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235 });
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236 }
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237 }
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238 }
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239 });
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240
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241 return false;
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242 },
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243
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244 _mouseStop: function(event) {
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245 var that = this;
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246
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247 this.dragged = false;
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248
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249 $(".ui-unselecting", this.element[0]).each(function() {
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250 var selectee = $.data(this, "selectable-item");
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251 selectee.$element.removeClass("ui-unselecting");
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252 selectee.unselecting = false;
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253 selectee.startselected = false;
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254 that._trigger("unselected", event, {
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255 unselected: selectee.element
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256 });
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257 });
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258 $(".ui-selecting", this.element[0]).each(function() {
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259 var selectee = $.data(this, "selectable-item");
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260 selectee.$element.removeClass("ui-selecting").addClass("ui-selected");
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261 selectee.selecting = false;
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262 selectee.selected = true;
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263 selectee.startselected = true;
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264 that._trigger("selected", event, {
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265 selected: selectee.element
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266 });
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267 });
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268 this._trigger("stop", event);
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269
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270 this.helper.remove();
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271
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272 return false;
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273 }
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274
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275 });
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276
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277 })(jQuery);
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