1 | /* |
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2 | * jQuery UI Draggable 1.8.10 |
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3 | * |
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4 | * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about) |
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5 | * Dual licensed under the MIT or GPL Version 2 licenses. |
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6 | * http://jquery.org/license |
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7 | * |
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8 | * http://docs.jquery.com/UI/Draggables |
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9 | * |
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10 | * Depends: |
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11 | * jquery.ui.core.js |
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12 | * jquery.ui.mouse.js |
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13 | * jquery.ui.widget.js |
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14 | */ |
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15 | (function( $, undefined ) { |
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16 | |
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17 | $.widget("ui.draggable", $.ui.mouse, { |
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18 | widgetEventPrefix: "drag", |
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19 | options: { |
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20 | addClasses: true, |
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21 | appendTo: "parent", |
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22 | axis: false, |
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23 | connectToSortable: false, |
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24 | containment: false, |
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25 | cursor: "auto", |
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26 | cursorAt: false, |
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27 | grid: false, |
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28 | handle: false, |
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29 | helper: "original", |
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30 | iframeFix: false, |
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31 | opacity: false, |
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32 | refreshPositions: false, |
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33 | revert: false, |
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34 | revertDuration: 500, |
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35 | scope: "default", |
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36 | scroll: true, |
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37 | scrollSensitivity: 20, |
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38 | scrollSpeed: 20, |
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39 | snap: false, |
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40 | snapMode: "both", |
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41 | snapTolerance: 20, |
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42 | stack: false, |
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43 | zIndex: false |
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44 | }, |
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45 | _create: function() { |
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46 | |
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47 | if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position"))) |
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48 | this.element[0].style.position = 'relative'; |
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49 | |
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50 | (this.options.addClasses && this.element.addClass("ui-draggable")); |
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51 | (this.options.disabled && this.element.addClass("ui-draggable-disabled")); |
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52 | |
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53 | this._mouseInit(); |
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54 | |
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55 | }, |
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56 | |
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57 | destroy: function() { |
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58 | if(!this.element.data('draggable')) return; |
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59 | this.element |
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60 | .removeData("draggable") |
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61 | .unbind(".draggable") |
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62 | .removeClass("ui-draggable" |
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63 | + " ui-draggable-dragging" |
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64 | + " ui-draggable-disabled"); |
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65 | this._mouseDestroy(); |
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66 | |
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67 | return this; |
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68 | }, |
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69 | |
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70 | _mouseCapture: function(event) { |
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71 | |
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72 | var o = this.options; |
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73 | |
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74 | // among others, prevent a drag on a resizable-handle |
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75 | if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle')) |
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76 | return false; |
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77 | |
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78 | //Quit if we're not on a valid handle |
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79 | this.handle = this._getHandle(event); |
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80 | if (!this.handle) |
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81 | return false; |
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82 | |
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83 | return true; |
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84 | |
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85 | }, |
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86 | |
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87 | _mouseStart: function(event) { |
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88 | |
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89 | var o = this.options; |
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90 | |
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91 | //Create and append the visible helper |
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92 | this.helper = this._createHelper(event); |
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93 | |
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94 | //Cache the helper size |
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95 | this._cacheHelperProportions(); |
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96 | |
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97 | //If ddmanager is used for droppables, set the global draggable |
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98 | if($.ui.ddmanager) |
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99 | $.ui.ddmanager.current = this; |
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100 | |
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101 | /* |
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102 | * - Position generation - |
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103 | * This block generates everything position related - it's the core of draggables. |
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104 | */ |
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105 | |
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106 | //Cache the margins of the original element |
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107 | this._cacheMargins(); |
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108 | |
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109 | //Store the helper's css position |
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110 | this.cssPosition = this.helper.css("position"); |
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111 | this.scrollParent = this.helper.scrollParent(); |
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112 | |
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113 | //The element's absolute position on the page minus margins |
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114 | this.offset = this.positionAbs = this.element.offset(); |
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115 | this.offset = { |
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116 | top: this.offset.top - this.margins.top, |
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117 | left: this.offset.left - this.margins.left |
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118 | }; |
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119 | |
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120 | $.extend(this.offset, { |
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121 | click: { //Where the click happened, relative to the element |
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122 | left: event.pageX - this.offset.left, |
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123 | top: event.pageY - this.offset.top |
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124 | }, |
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125 | parent: this._getParentOffset(), |
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126 | relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper |
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127 | }); |
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128 | |
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129 | //Generate the original position |
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130 | this.originalPosition = this.position = this._generatePosition(event); |
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131 | this.originalPageX = event.pageX; |
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132 | this.originalPageY = event.pageY; |
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133 | |
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134 | //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied |
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135 | (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); |
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136 | |
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137 | //Set a containment if given in the options |
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138 | if(o.containment) |
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139 | this._setContainment(); |
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140 | |
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141 | //Trigger event + callbacks |
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142 | if(this._trigger("start", event) === false) { |
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143 | this._clear(); |
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144 | return false; |
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145 | } |
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146 | |
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147 | //Recache the helper size |
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148 | this._cacheHelperProportions(); |
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149 | |
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150 | //Prepare the droppable offsets |
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151 | if ($.ui.ddmanager && !o.dropBehaviour) |
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152 | $.ui.ddmanager.prepareOffsets(this, event); |
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153 | |
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154 | this.helper.addClass("ui-draggable-dragging"); |
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155 | this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position |
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156 | return true; |
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157 | }, |
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158 | |
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159 | _mouseDrag: function(event, noPropagation) { |
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160 | |
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161 | //Compute the helpers position |
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162 | this.position = this._generatePosition(event); |
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163 | this.positionAbs = this._convertPositionTo("absolute"); |
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164 | |
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165 | //Call plugins and callbacks and use the resulting position if something is returned |
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166 | if (!noPropagation) { |
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167 | var ui = this._uiHash(); |
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168 | if(this._trigger('drag', event, ui) === false) { |
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169 | this._mouseUp({}); |
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170 | return false; |
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171 | } |
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172 | this.position = ui.position; |
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173 | } |
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174 | |
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175 | if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; |
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176 | if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; |
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177 | if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); |
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178 | |
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179 | return false; |
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180 | }, |
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181 | |
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182 | _mouseStop: function(event) { |
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183 | |
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184 | //If we are using droppables, inform the manager about the drop |
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185 | var dropped = false; |
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186 | if ($.ui.ddmanager && !this.options.dropBehaviour) |
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187 | dropped = $.ui.ddmanager.drop(this, event); |
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188 | |
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189 | //if a drop comes from outside (a sortable) |
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190 | if(this.dropped) { |
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191 | dropped = this.dropped; |
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192 | this.dropped = false; |
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193 | } |
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194 | |
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195 | //if the original element is removed, don't bother to continue if helper is set to "original" |
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196 | if((!this.element[0] || !this.element[0].parentNode) && this.options.helper == "original") |
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197 | return false; |
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198 | |
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199 | if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) { |
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200 | var self = this; |
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201 | $(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() { |
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202 | if(self._trigger("stop", event) !== false) { |
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203 | self._clear(); |
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204 | } |
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205 | }); |
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206 | } else { |
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207 | if(this._trigger("stop", event) !== false) { |
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208 | this._clear(); |
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209 | } |
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210 | } |
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211 | |
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212 | return false; |
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213 | }, |
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214 | |
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215 | cancel: function() { |
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216 | |
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217 | if(this.helper.is(".ui-draggable-dragging")) { |
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218 | this._mouseUp({}); |
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219 | } else { |
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220 | this._clear(); |
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221 | } |
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222 | |
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223 | return this; |
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224 | |
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225 | }, |
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226 | |
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227 | _getHandle: function(event) { |
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228 | |
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229 | var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false; |
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230 | $(this.options.handle, this.element) |
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231 | .find("*") |
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232 | .andSelf() |
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233 | .each(function() { |
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234 | if(this == event.target) handle = true; |
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235 | }); |
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236 | |
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237 | return handle; |
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238 | |
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239 | }, |
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240 | |
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241 | _createHelper: function(event) { |
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242 | |
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243 | var o = this.options; |
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244 | var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone() : this.element); |
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245 | |
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246 | if(!helper.parents('body').length) |
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247 | helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo)); |
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248 | |
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249 | if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) |
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250 | helper.css("position", "absolute"); |
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251 | |
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252 | return helper; |
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253 | |
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254 | }, |
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255 | |
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256 | _adjustOffsetFromHelper: function(obj) { |
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257 | if (typeof obj == 'string') { |
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258 | obj = obj.split(' '); |
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259 | } |
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260 | if ($.isArray(obj)) { |
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261 | obj = {left: +obj[0], top: +obj[1] || 0}; |
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262 | } |
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263 | if ('left' in obj) { |
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264 | this.offset.click.left = obj.left + this.margins.left; |
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265 | } |
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266 | if ('right' in obj) { |
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267 | this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; |
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268 | } |
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269 | if ('top' in obj) { |
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270 | this.offset.click.top = obj.top + this.margins.top; |
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271 | } |
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272 | if ('bottom' in obj) { |
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273 | this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; |
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274 | } |
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275 | }, |
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276 | |
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277 | _getParentOffset: function() { |
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278 | |
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279 | //Get the offsetParent and cache its position |
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280 | this.offsetParent = this.helper.offsetParent(); |
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281 | var po = this.offsetParent.offset(); |
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282 | |
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283 | // This is a special case where we need to modify a offset calculated on start, since the following happened: |
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284 | // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent |
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285 | // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that |
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286 | // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag |
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287 | if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) { |
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288 | po.left += this.scrollParent.scrollLeft(); |
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289 | po.top += this.scrollParent.scrollTop(); |
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290 | } |
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291 | |
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292 | if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information |
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293 | || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix |
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294 | po = { top: 0, left: 0 }; |
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295 | |
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296 | return { |
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297 | top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), |
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298 | left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) |
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299 | }; |
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300 | |
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301 | }, |
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302 | |
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303 | _getRelativeOffset: function() { |
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304 | |
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305 | if(this.cssPosition == "relative") { |
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306 | var p = this.element.position(); |
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307 | return { |
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308 | top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), |
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309 | left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() |
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310 | }; |
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311 | } else { |
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312 | return { top: 0, left: 0 }; |
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313 | } |
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314 | |
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315 | }, |
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316 | |
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317 | _cacheMargins: function() { |
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318 | this.margins = { |
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319 | left: (parseInt(this.element.css("marginLeft"),10) || 0), |
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320 | top: (parseInt(this.element.css("marginTop"),10) || 0) |
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321 | }; |
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322 | }, |
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323 | |
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324 | _cacheHelperProportions: function() { |
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325 | this.helperProportions = { |
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326 | width: this.helper.outerWidth(), |
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327 | height: this.helper.outerHeight() |
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328 | }; |
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329 | }, |
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330 | |
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331 | _setContainment: function() { |
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332 | |
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333 | var o = this.options; |
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334 | if(o.containment == 'parent') o.containment = this.helper[0].parentNode; |
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335 | if(o.containment == 'document' || o.containment == 'window') this.containment = [ |
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336 | (o.containment == 'document' ? 0 : $(window).scrollLeft()) - this.offset.relative.left - this.offset.parent.left, |
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337 | (o.containment == 'document' ? 0 : $(window).scrollTop()) - this.offset.relative.top - this.offset.parent.top, |
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338 | (o.containment == 'document' ? 0 : $(window).scrollLeft()) + $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, |
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339 | (o.containment == 'document' ? 0 : $(window).scrollTop()) + ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top |
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340 | ]; |
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341 | |
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342 | if(!(/^(document|window|parent)$/).test(o.containment) && o.containment.constructor != Array) { |
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343 | var ce = $(o.containment)[0]; if(!ce) return; |
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344 | var co = $(o.containment).offset(); |
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345 | var over = ($(ce).css("overflow") != 'hidden'); |
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346 | |
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347 | this.containment = [ |
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348 | co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left, |
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349 | co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top, |
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350 | co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left, |
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351 | co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top |
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352 | ]; |
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353 | } else if(o.containment.constructor == Array) { |
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354 | this.containment = o.containment; |
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355 | } |
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356 | |
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357 | }, |
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358 | |
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359 | _convertPositionTo: function(d, pos) { |
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360 | |
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361 | if(!pos) pos = this.position; |
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362 | var mod = d == "absolute" ? 1 : -1; |
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363 | var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); |
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364 | |
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365 | return { |
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366 | top: ( |
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367 | pos.top // The absolute mouse position |
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368 | + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
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369 | + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) |
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370 | - ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) |
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371 | ), |
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372 | left: ( |
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373 | pos.left // The absolute mouse position |
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374 | + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent |
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375 | + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) |
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376 | - ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) |
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377 | ) |
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378 | }; |
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379 | |
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380 | }, |
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381 | |
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382 | _generatePosition: function(event) { |
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383 | |
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384 | var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); |
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385 | var pageX = event.pageX; |
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386 | var pageY = event.pageY; |
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387 | |
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388 | /* |
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389 | * - Position constraining - |
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390 | * Constrain the position to a mix of grid, containment. |
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391 | */ |
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392 | |
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393 | if(this.originalPosition) { //If we are not dragging yet, we won't check for options |
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394 | |
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395 | if(this.containment) { |
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396 | if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left; |
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397 | if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top; |
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398 | if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left; |
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399 | if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top; |
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400 | } |
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401 | |
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402 | if(o.grid) { |
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403 | var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1]; |
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404 | pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; |
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405 | |
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406 | var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0]; |
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407 | pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; |
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408 | } |
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409 | |
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410 | } |
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411 | |
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412 | return { |
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413 | top: ( |
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414 | pageY // The absolute mouse position |
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415 | - this.offset.click.top // Click offset (relative to the element) |
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416 | - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent |
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417 | - this.offset.parent.top // The offsetParent's offset without borders (offset + border) |
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418 | + ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) |
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419 | ), |
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420 | left: ( |
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421 | pageX // The absolute mouse position |
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422 | - this.offset.click.left // Click offset (relative to the element) |
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423 | - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent |
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424 | - this.offset.parent.left // The offsetParent's offset without borders (offset + border) |
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425 | + ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) |
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426 | ) |
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427 | }; |
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428 | |
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429 | }, |
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430 | |
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431 | _clear: function() { |
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432 | this.helper.removeClass("ui-draggable-dragging"); |
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433 | if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove(); |
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434 | //if($.ui.ddmanager) $.ui.ddmanager.current = null; |
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435 | this.helper = null; |
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436 | this.cancelHelperRemoval = false; |
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437 | }, |
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438 | |
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439 | // From now on bulk stuff - mainly helpers |
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440 | |
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441 | _trigger: function(type, event, ui) { |
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442 | ui = ui || this._uiHash(); |
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443 | $.ui.plugin.call(this, type, [event, ui]); |
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444 | if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins |
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445 | return $.Widget.prototype._trigger.call(this, type, event, ui); |
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446 | }, |
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447 | |
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448 | plugins: {}, |
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449 | |
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450 | _uiHash: function(event) { |
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451 | return { |
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452 | helper: this.helper, |
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453 | position: this.position, |
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454 | originalPosition: this.originalPosition, |
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455 | offset: this.positionAbs |
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456 | }; |
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457 | } |
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458 | |
---|
459 | }); |
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460 | |
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461 | $.extend($.ui.draggable, { |
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462 | version: "1.8.10" |
---|
463 | }); |
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464 | |
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465 | $.ui.plugin.add("draggable", "connectToSortable", { |
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466 | start: function(event, ui) { |
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467 | |
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468 | var inst = $(this).data("draggable"), o = inst.options, |
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469 | uiSortable = $.extend({}, ui, { item: inst.element }); |
---|
470 | inst.sortables = []; |
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471 | $(o.connectToSortable).each(function() { |
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472 | var sortable = $.data(this, 'sortable'); |
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473 | if (sortable && !sortable.options.disabled) { |
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474 | inst.sortables.push({ |
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475 | instance: sortable, |
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476 | shouldRevert: sortable.options.revert |
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477 | }); |
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478 | sortable._refreshItems(); //Do a one-time refresh at start to refresh the containerCache |
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479 | sortable._trigger("activate", event, uiSortable); |
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480 | } |
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481 | }); |
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482 | |
---|
483 | }, |
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484 | stop: function(event, ui) { |
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485 | |
---|
486 | //If we are still over the sortable, we fake the stop event of the sortable, but also remove helper |
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487 | var inst = $(this).data("draggable"), |
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488 | uiSortable = $.extend({}, ui, { item: inst.element }); |
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489 | |
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490 | $.each(inst.sortables, function() { |
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491 | if(this.instance.isOver) { |
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492 | |
---|
493 | this.instance.isOver = 0; |
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494 | |
---|
495 | inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance |
---|
496 | this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work) |
---|
497 | |
---|
498 | //The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid' |
---|
499 | if(this.shouldRevert) this.instance.options.revert = true; |
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500 | |
---|
501 | //Trigger the stop of the sortable |
---|
502 | this.instance._mouseStop(event); |
---|
503 | |
---|
504 | this.instance.options.helper = this.instance.options._helper; |
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505 | |
---|
506 | //If the helper has been the original item, restore properties in the sortable |
---|
507 | if(inst.options.helper == 'original') |
---|
508 | this.instance.currentItem.css({ top: 'auto', left: 'auto' }); |
---|
509 | |
---|
510 | } else { |
---|
511 | this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance |
---|
512 | this.instance._trigger("deactivate", event, uiSortable); |
---|
513 | } |
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514 | |
---|
515 | }); |
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516 | |
---|
517 | }, |
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518 | drag: function(event, ui) { |
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519 | |
---|
520 | var inst = $(this).data("draggable"), self = this; |
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521 | |
---|
522 | var checkPos = function(o) { |
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523 | var dyClick = this.offset.click.top, dxClick = this.offset.click.left; |
---|
524 | var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left; |
---|
525 | var itemHeight = o.height, itemWidth = o.width; |
---|
526 | var itemTop = o.top, itemLeft = o.left; |
---|
527 | |
---|
528 | return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth); |
---|
529 | }; |
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530 | |
---|
531 | $.each(inst.sortables, function(i) { |
---|
532 | |
---|
533 | //Copy over some variables to allow calling the sortable's native _intersectsWith |
---|
534 | this.instance.positionAbs = inst.positionAbs; |
---|
535 | this.instance.helperProportions = inst.helperProportions; |
---|
536 | this.instance.offset.click = inst.offset.click; |
---|
537 | |
---|
538 | if(this.instance._intersectsWith(this.instance.containerCache)) { |
---|
539 | |
---|
540 | //If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once |
---|
541 | if(!this.instance.isOver) { |
---|
542 | |
---|
543 | this.instance.isOver = 1; |
---|
544 | //Now we fake the start of dragging for the sortable instance, |
---|
545 | //by cloning the list group item, appending it to the sortable and using it as inst.currentItem |
---|
546 | //We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one) |
---|
547 | this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true); |
---|
548 | this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it |
---|
549 | this.instance.options.helper = function() { return ui.helper[0]; }; |
---|
550 | |
---|
551 | event.target = this.instance.currentItem[0]; |
---|
552 | this.instance._mouseCapture(event, true); |
---|
553 | this.instance._mouseStart(event, true, true); |
---|
554 | |
---|
555 | //Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes |
---|
556 | this.instance.offset.click.top = inst.offset.click.top; |
---|
557 | this.instance.offset.click.left = inst.offset.click.left; |
---|
558 | this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left; |
---|
559 | this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top; |
---|
560 | |
---|
561 | inst._trigger("toSortable", event); |
---|
562 | inst.dropped = this.instance.element; //draggable revert needs that |
---|
563 | //hack so receive/update callbacks work (mostly) |
---|
564 | inst.currentItem = inst.element; |
---|
565 | this.instance.fromOutside = inst; |
---|
566 | |
---|
567 | } |
---|
568 | |
---|
569 | //Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable |
---|
570 | if(this.instance.currentItem) this.instance._mouseDrag(event); |
---|
571 | |
---|
572 | } else { |
---|
573 | |
---|
574 | //If it doesn't intersect with the sortable, and it intersected before, |
---|
575 | //we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval |
---|
576 | if(this.instance.isOver) { |
---|
577 | |
---|
578 | this.instance.isOver = 0; |
---|
579 | this.instance.cancelHelperRemoval = true; |
---|
580 | |
---|
581 | //Prevent reverting on this forced stop |
---|
582 | this.instance.options.revert = false; |
---|
583 | |
---|
584 | // The out event needs to be triggered independently |
---|
585 | this.instance._trigger('out', event, this.instance._uiHash(this.instance)); |
---|
586 | |
---|
587 | this.instance._mouseStop(event, true); |
---|
588 | this.instance.options.helper = this.instance.options._helper; |
---|
589 | |
---|
590 | //Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size |
---|
591 | this.instance.currentItem.remove(); |
---|
592 | if(this.instance.placeholder) this.instance.placeholder.remove(); |
---|
593 | |
---|
594 | inst._trigger("fromSortable", event); |
---|
595 | inst.dropped = false; //draggable revert needs that |
---|
596 | } |
---|
597 | |
---|
598 | }; |
---|
599 | |
---|
600 | }); |
---|
601 | |
---|
602 | } |
---|
603 | }); |
---|
604 | |
---|
605 | $.ui.plugin.add("draggable", "cursor", { |
---|
606 | start: function(event, ui) { |
---|
607 | var t = $('body'), o = $(this).data('draggable').options; |
---|
608 | if (t.css("cursor")) o._cursor = t.css("cursor"); |
---|
609 | t.css("cursor", o.cursor); |
---|
610 | }, |
---|
611 | stop: function(event, ui) { |
---|
612 | var o = $(this).data('draggable').options; |
---|
613 | if (o._cursor) $('body').css("cursor", o._cursor); |
---|
614 | } |
---|
615 | }); |
---|
616 | |
---|
617 | $.ui.plugin.add("draggable", "iframeFix", { |
---|
618 | start: function(event, ui) { |
---|
619 | var o = $(this).data('draggable').options; |
---|
620 | $(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() { |
---|
621 | $('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>') |
---|
622 | .css({ |
---|
623 | width: this.offsetWidth+"px", height: this.offsetHeight+"px", |
---|
624 | position: "absolute", opacity: "0.001", zIndex: 1000 |
---|
625 | }) |
---|
626 | .css($(this).offset()) |
---|
627 | .appendTo("body"); |
---|
628 | }); |
---|
629 | }, |
---|
630 | stop: function(event, ui) { |
---|
631 | $("div.ui-draggable-iframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers |
---|
632 | } |
---|
633 | }); |
---|
634 | |
---|
635 | $.ui.plugin.add("draggable", "opacity", { |
---|
636 | start: function(event, ui) { |
---|
637 | var t = $(ui.helper), o = $(this).data('draggable').options; |
---|
638 | if(t.css("opacity")) o._opacity = t.css("opacity"); |
---|
639 | t.css('opacity', o.opacity); |
---|
640 | }, |
---|
641 | stop: function(event, ui) { |
---|
642 | var o = $(this).data('draggable').options; |
---|
643 | if(o._opacity) $(ui.helper).css('opacity', o._opacity); |
---|
644 | } |
---|
645 | }); |
---|
646 | |
---|
647 | $.ui.plugin.add("draggable", "scroll", { |
---|
648 | start: function(event, ui) { |
---|
649 | var i = $(this).data("draggable"); |
---|
650 | if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset(); |
---|
651 | }, |
---|
652 | drag: function(event, ui) { |
---|
653 | |
---|
654 | var i = $(this).data("draggable"), o = i.options, scrolled = false; |
---|
655 | |
---|
656 | if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') { |
---|
657 | |
---|
658 | if(!o.axis || o.axis != 'x') { |
---|
659 | if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) |
---|
660 | i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed; |
---|
661 | else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity) |
---|
662 | i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed; |
---|
663 | } |
---|
664 | |
---|
665 | if(!o.axis || o.axis != 'y') { |
---|
666 | if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) |
---|
667 | i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed; |
---|
668 | else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity) |
---|
669 | i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed; |
---|
670 | } |
---|
671 | |
---|
672 | } else { |
---|
673 | |
---|
674 | if(!o.axis || o.axis != 'x') { |
---|
675 | if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) |
---|
676 | scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); |
---|
677 | else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) |
---|
678 | scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); |
---|
679 | } |
---|
680 | |
---|
681 | if(!o.axis || o.axis != 'y') { |
---|
682 | if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) |
---|
683 | scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); |
---|
684 | else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) |
---|
685 | scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); |
---|
686 | } |
---|
687 | |
---|
688 | } |
---|
689 | |
---|
690 | if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) |
---|
691 | $.ui.ddmanager.prepareOffsets(i, event); |
---|
692 | |
---|
693 | } |
---|
694 | }); |
---|
695 | |
---|
696 | $.ui.plugin.add("draggable", "snap", { |
---|
697 | start: function(event, ui) { |
---|
698 | |
---|
699 | var i = $(this).data("draggable"), o = i.options; |
---|
700 | i.snapElements = []; |
---|
701 | |
---|
702 | $(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() { |
---|
703 | var $t = $(this); var $o = $t.offset(); |
---|
704 | if(this != i.element[0]) i.snapElements.push({ |
---|
705 | item: this, |
---|
706 | width: $t.outerWidth(), height: $t.outerHeight(), |
---|
707 | top: $o.top, left: $o.left |
---|
708 | }); |
---|
709 | }); |
---|
710 | |
---|
711 | }, |
---|
712 | drag: function(event, ui) { |
---|
713 | |
---|
714 | var inst = $(this).data("draggable"), o = inst.options; |
---|
715 | var d = o.snapTolerance; |
---|
716 | |
---|
717 | var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width, |
---|
718 | y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height; |
---|
719 | |
---|
720 | for (var i = inst.snapElements.length - 1; i >= 0; i--){ |
---|
721 | |
---|
722 | var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width, |
---|
723 | t = inst.snapElements[i].top, b = t + inst.snapElements[i].height; |
---|
724 | |
---|
725 | //Yes, I know, this is insane ;) |
---|
726 | if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) { |
---|
727 | if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
---|
728 | inst.snapElements[i].snapping = false; |
---|
729 | continue; |
---|
730 | } |
---|
731 | |
---|
732 | if(o.snapMode != 'inner') { |
---|
733 | var ts = Math.abs(t - y2) <= d; |
---|
734 | var bs = Math.abs(b - y1) <= d; |
---|
735 | var ls = Math.abs(l - x2) <= d; |
---|
736 | var rs = Math.abs(r - x1) <= d; |
---|
737 | if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
---|
738 | if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top; |
---|
739 | if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left; |
---|
740 | if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left; |
---|
741 | } |
---|
742 | |
---|
743 | var first = (ts || bs || ls || rs); |
---|
744 | |
---|
745 | if(o.snapMode != 'outer') { |
---|
746 | var ts = Math.abs(t - y1) <= d; |
---|
747 | var bs = Math.abs(b - y2) <= d; |
---|
748 | var ls = Math.abs(l - x1) <= d; |
---|
749 | var rs = Math.abs(r - x2) <= d; |
---|
750 | if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top; |
---|
751 | if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
---|
752 | if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left; |
---|
753 | if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left; |
---|
754 | } |
---|
755 | |
---|
756 | if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first)) |
---|
757 | (inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
---|
758 | inst.snapElements[i].snapping = (ts || bs || ls || rs || first); |
---|
759 | |
---|
760 | }; |
---|
761 | |
---|
762 | } |
---|
763 | }); |
---|
764 | |
---|
765 | $.ui.plugin.add("draggable", "stack", { |
---|
766 | start: function(event, ui) { |
---|
767 | |
---|
768 | var o = $(this).data("draggable").options; |
---|
769 | |
---|
770 | var group = $.makeArray($(o.stack)).sort(function(a,b) { |
---|
771 | return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0); |
---|
772 | }); |
---|
773 | if (!group.length) { return; } |
---|
774 | |
---|
775 | var min = parseInt(group[0].style.zIndex) || 0; |
---|
776 | $(group).each(function(i) { |
---|
777 | this.style.zIndex = min + i; |
---|
778 | }); |
---|
779 | |
---|
780 | this[0].style.zIndex = min + group.length; |
---|
781 | |
---|
782 | } |
---|
783 | }); |
---|
784 | |
---|
785 | $.ui.plugin.add("draggable", "zIndex", { |
---|
786 | start: function(event, ui) { |
---|
787 | var t = $(ui.helper), o = $(this).data("draggable").options; |
---|
788 | if(t.css("zIndex")) o._zIndex = t.css("zIndex"); |
---|
789 | t.css('zIndex', o.zIndex); |
---|
790 | }, |
---|
791 | stop: function(event, ui) { |
---|
792 | var o = $(this).data("draggable").options; |
---|
793 | if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex); |
---|
794 | } |
---|
795 | }); |
---|
796 | |
---|
797 | })(jQuery); |
---|