1 /*! |
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2 * jQuery UI Slider 1.10.3 |
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3 * http://jqueryui.com |
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4 * |
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5 * Copyright 2013 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/slider/ |
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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 // number of pages in a slider |
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19 // (how many times can you page up/down to go through the whole range) |
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20 var numPages = 5; |
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21 |
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22 $.widget( "ui.slider", $.ui.mouse, { |
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23 version: "1.10.3", |
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24 widgetEventPrefix: "slide", |
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25 |
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26 options: { |
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27 animate: false, |
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28 distance: 0, |
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29 max: 100, |
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30 min: 0, |
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31 orientation: "horizontal", |
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32 range: false, |
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33 step: 1, |
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34 value: 0, |
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35 values: null, |
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36 |
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37 // callbacks |
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38 change: null, |
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39 slide: null, |
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40 start: null, |
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41 stop: null |
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42 }, |
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43 |
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44 _create: function() { |
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45 this._keySliding = false; |
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46 this._mouseSliding = false; |
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47 this._animateOff = true; |
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48 this._handleIndex = null; |
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49 this._detectOrientation(); |
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50 this._mouseInit(); |
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51 |
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52 this.element |
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53 .addClass( "ui-slider" + |
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54 " ui-slider-" + this.orientation + |
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55 " ui-widget" + |
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56 " ui-widget-content" + |
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57 " ui-corner-all"); |
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58 |
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59 this._refresh(); |
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60 this._setOption( "disabled", this.options.disabled ); |
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61 |
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62 this._animateOff = false; |
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63 }, |
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64 |
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65 _refresh: function() { |
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66 this._createRange(); |
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67 this._createHandles(); |
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68 this._setupEvents(); |
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69 this._refreshValue(); |
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70 }, |
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71 |
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72 _createHandles: function() { |
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73 var i, handleCount, |
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74 options = this.options, |
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75 existingHandles = this.element.find( ".ui-slider-handle" ).addClass( "ui-state-default ui-corner-all" ), |
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76 handle = "<a class='ui-slider-handle ui-state-default ui-corner-all' href='#'></a>", |
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77 handles = []; |
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78 |
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79 handleCount = ( options.values && options.values.length ) || 1; |
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80 |
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81 if ( existingHandles.length > handleCount ) { |
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82 existingHandles.slice( handleCount ).remove(); |
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83 existingHandles = existingHandles.slice( 0, handleCount ); |
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84 } |
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85 |
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86 for ( i = existingHandles.length; i < handleCount; i++ ) { |
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87 handles.push( handle ); |
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88 } |
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89 |
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90 this.handles = existingHandles.add( $( handles.join( "" ) ).appendTo( this.element ) ); |
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91 |
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92 this.handle = this.handles.eq( 0 ); |
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93 |
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94 this.handles.each(function( i ) { |
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95 $( this ).data( "ui-slider-handle-index", i ); |
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96 }); |
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97 }, |
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98 |
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99 _createRange: function() { |
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100 var options = this.options, |
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101 classes = ""; |
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102 |
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103 if ( options.range ) { |
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104 if ( options.range === true ) { |
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105 if ( !options.values ) { |
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106 options.values = [ this._valueMin(), this._valueMin() ]; |
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107 } else if ( options.values.length && options.values.length !== 2 ) { |
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108 options.values = [ options.values[0], options.values[0] ]; |
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109 } else if ( $.isArray( options.values ) ) { |
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110 options.values = options.values.slice(0); |
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111 } |
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112 } |
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113 |
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114 if ( !this.range || !this.range.length ) { |
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115 this.range = $( "<div></div>" ) |
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116 .appendTo( this.element ); |
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117 |
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118 classes = "ui-slider-range" + |
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119 // note: this isn't the most fittingly semantic framework class for this element, |
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120 // but worked best visually with a variety of themes |
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121 " ui-widget-header ui-corner-all"; |
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122 } else { |
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123 this.range.removeClass( "ui-slider-range-min ui-slider-range-max" ) |
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124 // Handle range switching from true to min/max |
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125 .css({ |
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126 "left": "", |
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127 "bottom": "" |
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128 }); |
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129 } |
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130 |
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131 this.range.addClass( classes + |
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132 ( ( options.range === "min" || options.range === "max" ) ? " ui-slider-range-" + options.range : "" ) ); |
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133 } else { |
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134 this.range = $([]); |
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135 } |
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136 }, |
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137 |
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138 _setupEvents: function() { |
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139 var elements = this.handles.add( this.range ).filter( "a" ); |
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140 this._off( elements ); |
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141 this._on( elements, this._handleEvents ); |
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142 this._hoverable( elements ); |
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143 this._focusable( elements ); |
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144 }, |
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145 |
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146 _destroy: function() { |
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147 this.handles.remove(); |
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148 this.range.remove(); |
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149 |
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150 this.element |
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151 .removeClass( "ui-slider" + |
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152 " ui-slider-horizontal" + |
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153 " ui-slider-vertical" + |
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154 " ui-widget" + |
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155 " ui-widget-content" + |
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156 " ui-corner-all" ); |
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157 |
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158 this._mouseDestroy(); |
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159 }, |
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160 |
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161 _mouseCapture: function( event ) { |
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162 var position, normValue, distance, closestHandle, index, allowed, offset, mouseOverHandle, |
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163 that = this, |
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164 o = this.options; |
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165 |
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166 if ( o.disabled ) { |
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167 return false; |
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168 } |
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169 |
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170 this.elementSize = { |
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171 width: this.element.outerWidth(), |
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172 height: this.element.outerHeight() |
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173 }; |
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174 this.elementOffset = this.element.offset(); |
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175 |
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176 position = { x: event.pageX, y: event.pageY }; |
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177 normValue = this._normValueFromMouse( position ); |
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178 distance = this._valueMax() - this._valueMin() + 1; |
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179 this.handles.each(function( i ) { |
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180 var thisDistance = Math.abs( normValue - that.values(i) ); |
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181 if (( distance > thisDistance ) || |
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182 ( distance === thisDistance && |
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183 (i === that._lastChangedValue || that.values(i) === o.min ))) { |
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184 distance = thisDistance; |
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185 closestHandle = $( this ); |
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186 index = i; |
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187 } |
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188 }); |
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189 |
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190 allowed = this._start( event, index ); |
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191 if ( allowed === false ) { |
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192 return false; |
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193 } |
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194 this._mouseSliding = true; |
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195 |
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196 this._handleIndex = index; |
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197 |
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198 closestHandle |
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199 .addClass( "ui-state-active" ) |
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200 .focus(); |
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201 |
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202 offset = closestHandle.offset(); |
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203 mouseOverHandle = !$( event.target ).parents().addBack().is( ".ui-slider-handle" ); |
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204 this._clickOffset = mouseOverHandle ? { left: 0, top: 0 } : { |
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205 left: event.pageX - offset.left - ( closestHandle.width() / 2 ), |
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206 top: event.pageY - offset.top - |
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207 ( closestHandle.height() / 2 ) - |
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208 ( parseInt( closestHandle.css("borderTopWidth"), 10 ) || 0 ) - |
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209 ( parseInt( closestHandle.css("borderBottomWidth"), 10 ) || 0) + |
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210 ( parseInt( closestHandle.css("marginTop"), 10 ) || 0) |
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211 }; |
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212 |
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213 if ( !this.handles.hasClass( "ui-state-hover" ) ) { |
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214 this._slide( event, index, normValue ); |
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215 } |
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216 this._animateOff = true; |
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217 return true; |
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218 }, |
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219 |
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220 _mouseStart: function() { |
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221 return true; |
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222 }, |
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223 |
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224 _mouseDrag: function( event ) { |
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225 var position = { x: event.pageX, y: event.pageY }, |
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226 normValue = this._normValueFromMouse( position ); |
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227 |
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228 this._slide( event, this._handleIndex, normValue ); |
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229 |
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230 return false; |
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231 }, |
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232 |
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233 _mouseStop: function( event ) { |
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234 this.handles.removeClass( "ui-state-active" ); |
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235 this._mouseSliding = false; |
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236 |
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237 this._stop( event, this._handleIndex ); |
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238 this._change( event, this._handleIndex ); |
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239 |
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240 this._handleIndex = null; |
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241 this._clickOffset = null; |
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242 this._animateOff = false; |
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243 |
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244 return false; |
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245 }, |
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246 |
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247 _detectOrientation: function() { |
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248 this.orientation = ( this.options.orientation === "vertical" ) ? "vertical" : "horizontal"; |
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249 }, |
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250 |
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251 _normValueFromMouse: function( position ) { |
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252 var pixelTotal, |
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253 pixelMouse, |
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254 percentMouse, |
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255 valueTotal, |
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256 valueMouse; |
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257 |
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258 if ( this.orientation === "horizontal" ) { |
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259 pixelTotal = this.elementSize.width; |
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260 pixelMouse = position.x - this.elementOffset.left - ( this._clickOffset ? this._clickOffset.left : 0 ); |
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261 } else { |
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262 pixelTotal = this.elementSize.height; |
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263 pixelMouse = position.y - this.elementOffset.top - ( this._clickOffset ? this._clickOffset.top : 0 ); |
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264 } |
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265 |
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266 percentMouse = ( pixelMouse / pixelTotal ); |
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267 if ( percentMouse > 1 ) { |
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268 percentMouse = 1; |
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269 } |
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270 if ( percentMouse < 0 ) { |
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271 percentMouse = 0; |
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272 } |
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273 if ( this.orientation === "vertical" ) { |
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274 percentMouse = 1 - percentMouse; |
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275 } |
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276 |
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277 valueTotal = this._valueMax() - this._valueMin(); |
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278 valueMouse = this._valueMin() + percentMouse * valueTotal; |
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279 |
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280 return this._trimAlignValue( valueMouse ); |
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281 }, |
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282 |
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283 _start: function( event, index ) { |
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284 var uiHash = { |
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285 handle: this.handles[ index ], |
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286 value: this.value() |
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287 }; |
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288 if ( this.options.values && this.options.values.length ) { |
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289 uiHash.value = this.values( index ); |
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290 uiHash.values = this.values(); |
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291 } |
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292 return this._trigger( "start", event, uiHash ); |
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293 }, |
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294 |
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295 _slide: function( event, index, newVal ) { |
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296 var otherVal, |
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297 newValues, |
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298 allowed; |
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299 |
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300 if ( this.options.values && this.options.values.length ) { |
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301 otherVal = this.values( index ? 0 : 1 ); |
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302 |
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303 if ( ( this.options.values.length === 2 && this.options.range === true ) && |
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304 ( ( index === 0 && newVal > otherVal) || ( index === 1 && newVal < otherVal ) ) |
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305 ) { |
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306 newVal = otherVal; |
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307 } |
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308 |
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309 if ( newVal !== this.values( index ) ) { |
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310 newValues = this.values(); |
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311 newValues[ index ] = newVal; |
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312 // A slide can be canceled by returning false from the slide callback |
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313 allowed = this._trigger( "slide", event, { |
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314 handle: this.handles[ index ], |
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315 value: newVal, |
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316 values: newValues |
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317 } ); |
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318 otherVal = this.values( index ? 0 : 1 ); |
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319 if ( allowed !== false ) { |
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320 this.values( index, newVal, true ); |
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321 } |
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322 } |
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323 } else { |
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324 if ( newVal !== this.value() ) { |
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325 // A slide can be canceled by returning false from the slide callback |
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326 allowed = this._trigger( "slide", event, { |
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327 handle: this.handles[ index ], |
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328 value: newVal |
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329 } ); |
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330 if ( allowed !== false ) { |
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331 this.value( newVal ); |
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332 } |
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333 } |
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334 } |
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335 }, |
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336 |
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337 _stop: function( event, index ) { |
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338 var uiHash = { |
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339 handle: this.handles[ index ], |
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340 value: this.value() |
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341 }; |
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342 if ( this.options.values && this.options.values.length ) { |
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343 uiHash.value = this.values( index ); |
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344 uiHash.values = this.values(); |
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345 } |
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346 |
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347 this._trigger( "stop", event, uiHash ); |
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348 }, |
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349 |
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350 _change: function( event, index ) { |
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351 if ( !this._keySliding && !this._mouseSliding ) { |
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352 var uiHash = { |
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353 handle: this.handles[ index ], |
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354 value: this.value() |
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355 }; |
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356 if ( this.options.values && this.options.values.length ) { |
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357 uiHash.value = this.values( index ); |
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358 uiHash.values = this.values(); |
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359 } |
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360 |
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361 //store the last changed value index for reference when handles overlap |
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362 this._lastChangedValue = index; |
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363 |
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364 this._trigger( "change", event, uiHash ); |
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365 } |
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366 }, |
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367 |
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368 value: function( newValue ) { |
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369 if ( arguments.length ) { |
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370 this.options.value = this._trimAlignValue( newValue ); |
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371 this._refreshValue(); |
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372 this._change( null, 0 ); |
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373 return; |
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374 } |
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375 |
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376 return this._value(); |
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377 }, |
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378 |
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379 values: function( index, newValue ) { |
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380 var vals, |
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381 newValues, |
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382 i; |
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383 |
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384 if ( arguments.length > 1 ) { |
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385 this.options.values[ index ] = this._trimAlignValue( newValue ); |
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386 this._refreshValue(); |
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387 this._change( null, index ); |
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388 return; |
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389 } |
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390 |
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391 if ( arguments.length ) { |
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392 if ( $.isArray( arguments[ 0 ] ) ) { |
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393 vals = this.options.values; |
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394 newValues = arguments[ 0 ]; |
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395 for ( i = 0; i < vals.length; i += 1 ) { |
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396 vals[ i ] = this._trimAlignValue( newValues[ i ] ); |
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397 this._change( null, i ); |
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398 } |
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399 this._refreshValue(); |
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400 } else { |
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401 if ( this.options.values && this.options.values.length ) { |
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402 return this._values( index ); |
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403 } else { |
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404 return this.value(); |
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405 } |
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406 } |
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407 } else { |
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408 return this._values(); |
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409 } |
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410 }, |
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411 |
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412 _setOption: function( key, value ) { |
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413 var i, |
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414 valsLength = 0; |
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415 |
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416 if ( key === "range" && this.options.range === true ) { |
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417 if ( value === "min" ) { |
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418 this.options.value = this._values( 0 ); |
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419 this.options.values = null; |
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420 } else if ( value === "max" ) { |
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421 this.options.value = this._values( this.options.values.length-1 ); |
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422 this.options.values = null; |
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423 } |
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424 } |
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425 |
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426 if ( $.isArray( this.options.values ) ) { |
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427 valsLength = this.options.values.length; |
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428 } |
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429 |
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430 $.Widget.prototype._setOption.apply( this, arguments ); |
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431 |
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432 switch ( key ) { |
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433 case "orientation": |
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434 this._detectOrientation(); |
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435 this.element |
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436 .removeClass( "ui-slider-horizontal ui-slider-vertical" ) |
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437 .addClass( "ui-slider-" + this.orientation ); |
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438 this._refreshValue(); |
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439 break; |
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440 case "value": |
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441 this._animateOff = true; |
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442 this._refreshValue(); |
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443 this._change( null, 0 ); |
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444 this._animateOff = false; |
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445 break; |
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446 case "values": |
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447 this._animateOff = true; |
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448 this._refreshValue(); |
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449 for ( i = 0; i < valsLength; i += 1 ) { |
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450 this._change( null, i ); |
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451 } |
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452 this._animateOff = false; |
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453 break; |
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454 case "min": |
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455 case "max": |
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456 this._animateOff = true; |
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457 this._refreshValue(); |
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458 this._animateOff = false; |
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459 break; |
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460 case "range": |
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461 this._animateOff = true; |
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462 this._refresh(); |
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463 this._animateOff = false; |
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464 break; |
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465 } |
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466 }, |
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467 |
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468 //internal value getter |
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469 // _value() returns value trimmed by min and max, aligned by step |
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470 _value: function() { |
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471 var val = this.options.value; |
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472 val = this._trimAlignValue( val ); |
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473 |
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474 return val; |
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475 }, |
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476 |
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477 //internal values getter |
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478 // _values() returns array of values trimmed by min and max, aligned by step |
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479 // _values( index ) returns single value trimmed by min and max, aligned by step |
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480 _values: function( index ) { |
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481 var val, |
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482 vals, |
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483 i; |
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484 |
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485 if ( arguments.length ) { |
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486 val = this.options.values[ index ]; |
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487 val = this._trimAlignValue( val ); |
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488 |
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489 return val; |
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490 } else if ( this.options.values && this.options.values.length ) { |
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491 // .slice() creates a copy of the array |
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492 // this copy gets trimmed by min and max and then returned |
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493 vals = this.options.values.slice(); |
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494 for ( i = 0; i < vals.length; i+= 1) { |
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495 vals[ i ] = this._trimAlignValue( vals[ i ] ); |
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496 } |
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497 |
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498 return vals; |
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499 } else { |
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500 return []; |
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501 } |
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502 }, |
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503 |
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504 // returns the step-aligned value that val is closest to, between (inclusive) min and max |
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505 _trimAlignValue: function( val ) { |
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506 if ( val <= this._valueMin() ) { |
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507 return this._valueMin(); |
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508 } |
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509 if ( val >= this._valueMax() ) { |
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510 return this._valueMax(); |
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511 } |
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512 var step = ( this.options.step > 0 ) ? this.options.step : 1, |
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513 valModStep = (val - this._valueMin()) % step, |
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514 alignValue = val - valModStep; |
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515 |
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516 if ( Math.abs(valModStep) * 2 >= step ) { |
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517 alignValue += ( valModStep > 0 ) ? step : ( -step ); |
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518 } |
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519 |
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520 // Since JavaScript has problems with large floats, round |
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521 // the final value to 5 digits after the decimal point (see #4124) |
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522 return parseFloat( alignValue.toFixed(5) ); |
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523 }, |
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524 |
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525 _valueMin: function() { |
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526 return this.options.min; |
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527 }, |
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528 |
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529 _valueMax: function() { |
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530 return this.options.max; |
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531 }, |
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532 |
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533 _refreshValue: function() { |
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534 var lastValPercent, valPercent, value, valueMin, valueMax, |
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535 oRange = this.options.range, |
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536 o = this.options, |
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537 that = this, |
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538 animate = ( !this._animateOff ) ? o.animate : false, |
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539 _set = {}; |
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540 |
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541 if ( this.options.values && this.options.values.length ) { |
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542 this.handles.each(function( i ) { |
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543 valPercent = ( that.values(i) - that._valueMin() ) / ( that._valueMax() - that._valueMin() ) * 100; |
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544 _set[ that.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%"; |
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545 $( this ).stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate ); |
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546 if ( that.options.range === true ) { |
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547 if ( that.orientation === "horizontal" ) { |
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548 if ( i === 0 ) { |
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549 that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { left: valPercent + "%" }, o.animate ); |
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550 } |
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551 if ( i === 1 ) { |
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552 that.range[ animate ? "animate" : "css" ]( { width: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } ); |
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553 } |
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554 } else { |
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555 if ( i === 0 ) { |
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556 that.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { bottom: ( valPercent ) + "%" }, o.animate ); |
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557 } |
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558 if ( i === 1 ) { |
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559 that.range[ animate ? "animate" : "css" ]( { height: ( valPercent - lastValPercent ) + "%" }, { queue: false, duration: o.animate } ); |
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560 } |
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561 } |
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562 } |
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563 lastValPercent = valPercent; |
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564 }); |
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565 } else { |
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566 value = this.value(); |
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567 valueMin = this._valueMin(); |
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568 valueMax = this._valueMax(); |
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569 valPercent = ( valueMax !== valueMin ) ? |
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570 ( value - valueMin ) / ( valueMax - valueMin ) * 100 : |
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571 0; |
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572 _set[ this.orientation === "horizontal" ? "left" : "bottom" ] = valPercent + "%"; |
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573 this.handle.stop( 1, 1 )[ animate ? "animate" : "css" ]( _set, o.animate ); |
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574 |
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575 if ( oRange === "min" && this.orientation === "horizontal" ) { |
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576 this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { width: valPercent + "%" }, o.animate ); |
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577 } |
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578 if ( oRange === "max" && this.orientation === "horizontal" ) { |
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579 this.range[ animate ? "animate" : "css" ]( { width: ( 100 - valPercent ) + "%" }, { queue: false, duration: o.animate } ); |
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580 } |
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581 if ( oRange === "min" && this.orientation === "vertical" ) { |
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582 this.range.stop( 1, 1 )[ animate ? "animate" : "css" ]( { height: valPercent + "%" }, o.animate ); |
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583 } |
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584 if ( oRange === "max" && this.orientation === "vertical" ) { |
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585 this.range[ animate ? "animate" : "css" ]( { height: ( 100 - valPercent ) + "%" }, { queue: false, duration: o.animate } ); |
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586 } |
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587 } |
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588 }, |
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589 |
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590 _handleEvents: { |
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591 keydown: function( event ) { |
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592 /*jshint maxcomplexity:25*/ |
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593 var allowed, curVal, newVal, step, |
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594 index = $( event.target ).data( "ui-slider-handle-index" ); |
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595 |
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596 switch ( event.keyCode ) { |
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597 case $.ui.keyCode.HOME: |
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598 case $.ui.keyCode.END: |
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599 case $.ui.keyCode.PAGE_UP: |
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600 case $.ui.keyCode.PAGE_DOWN: |
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601 case $.ui.keyCode.UP: |
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602 case $.ui.keyCode.RIGHT: |
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603 case $.ui.keyCode.DOWN: |
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604 case $.ui.keyCode.LEFT: |
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605 event.preventDefault(); |
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606 if ( !this._keySliding ) { |
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607 this._keySliding = true; |
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608 $( event.target ).addClass( "ui-state-active" ); |
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609 allowed = this._start( event, index ); |
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610 if ( allowed === false ) { |
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611 return; |
|
612 } |
|
613 } |
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614 break; |
|
615 } |
|
616 |
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617 step = this.options.step; |
|
618 if ( this.options.values && this.options.values.length ) { |
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619 curVal = newVal = this.values( index ); |
|
620 } else { |
|
621 curVal = newVal = this.value(); |
|
622 } |
|
623 |
|
624 switch ( event.keyCode ) { |
|
625 case $.ui.keyCode.HOME: |
|
626 newVal = this._valueMin(); |
|
627 break; |
|
628 case $.ui.keyCode.END: |
|
629 newVal = this._valueMax(); |
|
630 break; |
|
631 case $.ui.keyCode.PAGE_UP: |
|
632 newVal = this._trimAlignValue( curVal + ( (this._valueMax() - this._valueMin()) / numPages ) ); |
|
633 break; |
|
634 case $.ui.keyCode.PAGE_DOWN: |
|
635 newVal = this._trimAlignValue( curVal - ( (this._valueMax() - this._valueMin()) / numPages ) ); |
|
636 break; |
|
637 case $.ui.keyCode.UP: |
|
638 case $.ui.keyCode.RIGHT: |
|
639 if ( curVal === this._valueMax() ) { |
|
640 return; |
|
641 } |
|
642 newVal = this._trimAlignValue( curVal + step ); |
|
643 break; |
|
644 case $.ui.keyCode.DOWN: |
|
645 case $.ui.keyCode.LEFT: |
|
646 if ( curVal === this._valueMin() ) { |
|
647 return; |
|
648 } |
|
649 newVal = this._trimAlignValue( curVal - step ); |
|
650 break; |
|
651 } |
|
652 |
|
653 this._slide( event, index, newVal ); |
|
654 }, |
|
655 click: function( event ) { |
|
656 event.preventDefault(); |
|
657 }, |
|
658 keyup: function( event ) { |
|
659 var index = $( event.target ).data( "ui-slider-handle-index" ); |
|
660 |
|
661 if ( this._keySliding ) { |
|
662 this._keySliding = false; |
|
663 this._stop( event, index ); |
|
664 this._change( event, index ); |
|
665 $( event.target ).removeClass( "ui-state-active" ); |
|
666 } |
|
667 } |
|
668 } |
|
669 |
|
670 }); |
|
671 |
|
672 }(jQuery)); |
|