1 /*! |
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2 * jQuery UI Draggable 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/draggable/ |
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10 * |
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11 * Depends: |
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12 * jquery.ui.core.js |
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13 * jquery.ui.mouse.js |
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14 * jquery.ui.widget.js |
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15 */ |
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16 (function( $, undefined ) { |
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17 |
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18 $.widget("ui.draggable", $.ui.mouse, { |
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19 version: "1.10.3", |
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20 widgetEventPrefix: "drag", |
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21 options: { |
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22 addClasses: true, |
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23 appendTo: "parent", |
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24 axis: false, |
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25 connectToSortable: false, |
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26 containment: false, |
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27 cursor: "auto", |
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28 cursorAt: false, |
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29 grid: false, |
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30 handle: false, |
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31 helper: "original", |
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32 iframeFix: false, |
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33 opacity: false, |
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34 refreshPositions: false, |
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35 revert: false, |
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36 revertDuration: 500, |
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37 scope: "default", |
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38 scroll: true, |
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39 scrollSensitivity: 20, |
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40 scrollSpeed: 20, |
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41 snap: false, |
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42 snapMode: "both", |
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43 snapTolerance: 20, |
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44 stack: false, |
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45 zIndex: false, |
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46 |
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47 // callbacks |
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48 drag: null, |
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49 start: null, |
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50 stop: null |
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51 }, |
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52 _create: function() { |
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53 |
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54 if (this.options.helper === "original" && !(/^(?:r|a|f)/).test(this.element.css("position"))) { |
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55 this.element[0].style.position = "relative"; |
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56 } |
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57 if (this.options.addClasses){ |
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58 this.element.addClass("ui-draggable"); |
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59 } |
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60 if (this.options.disabled){ |
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61 this.element.addClass("ui-draggable-disabled"); |
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62 } |
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63 |
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64 this._mouseInit(); |
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65 |
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66 }, |
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67 |
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68 _destroy: function() { |
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69 this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" ); |
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70 this._mouseDestroy(); |
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71 }, |
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72 |
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73 _mouseCapture: function(event) { |
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74 |
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75 var o = this.options; |
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76 |
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77 // among others, prevent a drag on a resizable-handle |
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78 if (this.helper || o.disabled || $(event.target).closest(".ui-resizable-handle").length > 0) { |
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79 return false; |
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80 } |
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81 |
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82 //Quit if we're not on a valid handle |
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83 this.handle = this._getHandle(event); |
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84 if (!this.handle) { |
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85 return false; |
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86 } |
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87 |
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88 $(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() { |
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89 $("<div class='ui-draggable-iframeFix' style='background: #fff;'></div>") |
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90 .css({ |
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91 width: this.offsetWidth+"px", height: this.offsetHeight+"px", |
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92 position: "absolute", opacity: "0.001", zIndex: 1000 |
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93 }) |
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94 .css($(this).offset()) |
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95 .appendTo("body"); |
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96 }); |
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97 |
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98 return true; |
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99 |
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100 }, |
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101 |
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102 _mouseStart: function(event) { |
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103 |
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104 var o = this.options; |
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105 |
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106 //Create and append the visible helper |
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107 this.helper = this._createHelper(event); |
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108 |
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109 this.helper.addClass("ui-draggable-dragging"); |
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110 |
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111 //Cache the helper size |
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112 this._cacheHelperProportions(); |
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113 |
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114 //If ddmanager is used for droppables, set the global draggable |
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115 if($.ui.ddmanager) { |
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116 $.ui.ddmanager.current = this; |
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117 } |
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118 |
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119 /* |
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120 * - Position generation - |
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121 * This block generates everything position related - it's the core of draggables. |
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122 */ |
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123 |
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124 //Cache the margins of the original element |
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125 this._cacheMargins(); |
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126 |
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127 //Store the helper's css position |
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128 this.cssPosition = this.helper.css( "position" ); |
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129 this.scrollParent = this.helper.scrollParent(); |
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130 this.offsetParent = this.helper.offsetParent(); |
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131 this.offsetParentCssPosition = this.offsetParent.css( "position" ); |
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132 |
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133 //The element's absolute position on the page minus margins |
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134 this.offset = this.positionAbs = this.element.offset(); |
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135 this.offset = { |
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136 top: this.offset.top - this.margins.top, |
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137 left: this.offset.left - this.margins.left |
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138 }; |
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139 |
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140 //Reset scroll cache |
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141 this.offset.scroll = false; |
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142 |
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143 $.extend(this.offset, { |
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144 click: { //Where the click happened, relative to the element |
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145 left: event.pageX - this.offset.left, |
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146 top: event.pageY - this.offset.top |
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147 }, |
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148 parent: this._getParentOffset(), |
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149 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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150 }); |
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151 |
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152 //Generate the original position |
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153 this.originalPosition = this.position = this._generatePosition(event); |
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154 this.originalPageX = event.pageX; |
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155 this.originalPageY = event.pageY; |
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156 |
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157 //Adjust the mouse offset relative to the helper if "cursorAt" is supplied |
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158 (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); |
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159 |
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160 //Set a containment if given in the options |
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161 this._setContainment(); |
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162 |
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163 //Trigger event + callbacks |
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164 if(this._trigger("start", event) === false) { |
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165 this._clear(); |
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166 return false; |
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167 } |
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168 |
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169 //Recache the helper size |
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170 this._cacheHelperProportions(); |
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171 |
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172 //Prepare the droppable offsets |
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173 if ($.ui.ddmanager && !o.dropBehaviour) { |
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174 $.ui.ddmanager.prepareOffsets(this, event); |
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175 } |
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176 |
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177 |
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178 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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179 |
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180 //If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003) |
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181 if ( $.ui.ddmanager ) { |
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182 $.ui.ddmanager.dragStart(this, event); |
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183 } |
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184 |
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185 return true; |
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186 }, |
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187 |
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188 _mouseDrag: function(event, noPropagation) { |
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189 // reset any necessary cached properties (see #5009) |
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190 if ( this.offsetParentCssPosition === "fixed" ) { |
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191 this.offset.parent = this._getParentOffset(); |
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192 } |
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193 |
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194 //Compute the helpers position |
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195 this.position = this._generatePosition(event); |
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196 this.positionAbs = this._convertPositionTo("absolute"); |
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197 |
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198 //Call plugins and callbacks and use the resulting position if something is returned |
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199 if (!noPropagation) { |
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200 var ui = this._uiHash(); |
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201 if(this._trigger("drag", event, ui) === false) { |
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202 this._mouseUp({}); |
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203 return false; |
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204 } |
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205 this.position = ui.position; |
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206 } |
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207 |
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208 if(!this.options.axis || this.options.axis !== "y") { |
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209 this.helper[0].style.left = this.position.left+"px"; |
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210 } |
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211 if(!this.options.axis || this.options.axis !== "x") { |
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212 this.helper[0].style.top = this.position.top+"px"; |
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213 } |
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214 if($.ui.ddmanager) { |
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215 $.ui.ddmanager.drag(this, event); |
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216 } |
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217 |
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218 return false; |
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219 }, |
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220 |
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221 _mouseStop: function(event) { |
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222 |
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223 //If we are using droppables, inform the manager about the drop |
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224 var that = this, |
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225 dropped = false; |
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226 if ($.ui.ddmanager && !this.options.dropBehaviour) { |
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227 dropped = $.ui.ddmanager.drop(this, event); |
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228 } |
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229 |
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230 //if a drop comes from outside (a sortable) |
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231 if(this.dropped) { |
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232 dropped = this.dropped; |
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233 this.dropped = false; |
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234 } |
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235 |
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236 //if the original element is no longer in the DOM don't bother to continue (see #8269) |
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237 if ( this.options.helper === "original" && !$.contains( this.element[ 0 ].ownerDocument, this.element[ 0 ] ) ) { |
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238 return false; |
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239 } |
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240 |
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241 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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242 $(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() { |
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243 if(that._trigger("stop", event) !== false) { |
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244 that._clear(); |
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245 } |
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246 }); |
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247 } else { |
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248 if(this._trigger("stop", event) !== false) { |
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249 this._clear(); |
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250 } |
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251 } |
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252 |
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253 return false; |
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254 }, |
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255 |
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256 _mouseUp: function(event) { |
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257 //Remove frame helpers |
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258 $("div.ui-draggable-iframeFix").each(function() { |
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259 this.parentNode.removeChild(this); |
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260 }); |
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261 |
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262 //If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003) |
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263 if( $.ui.ddmanager ) { |
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264 $.ui.ddmanager.dragStop(this, event); |
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265 } |
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266 |
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267 return $.ui.mouse.prototype._mouseUp.call(this, event); |
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268 }, |
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269 |
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270 cancel: function() { |
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271 |
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272 if(this.helper.is(".ui-draggable-dragging")) { |
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273 this._mouseUp({}); |
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274 } else { |
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275 this._clear(); |
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276 } |
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277 |
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278 return this; |
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279 |
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280 }, |
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281 |
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282 _getHandle: function(event) { |
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283 return this.options.handle ? |
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284 !!$( event.target ).closest( this.element.find( this.options.handle ) ).length : |
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285 true; |
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286 }, |
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287 |
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288 _createHelper: function(event) { |
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289 |
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290 var o = this.options, |
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291 helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper === "clone" ? this.element.clone().removeAttr("id") : this.element); |
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292 |
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293 if(!helper.parents("body").length) { |
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294 helper.appendTo((o.appendTo === "parent" ? this.element[0].parentNode : o.appendTo)); |
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295 } |
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296 |
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297 if(helper[0] !== this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) { |
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298 helper.css("position", "absolute"); |
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299 } |
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300 |
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301 return helper; |
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302 |
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303 }, |
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304 |
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305 _adjustOffsetFromHelper: function(obj) { |
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306 if (typeof obj === "string") { |
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307 obj = obj.split(" "); |
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308 } |
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309 if ($.isArray(obj)) { |
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310 obj = {left: +obj[0], top: +obj[1] || 0}; |
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311 } |
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312 if ("left" in obj) { |
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313 this.offset.click.left = obj.left + this.margins.left; |
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314 } |
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315 if ("right" in obj) { |
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316 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; |
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317 } |
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318 if ("top" in obj) { |
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319 this.offset.click.top = obj.top + this.margins.top; |
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320 } |
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321 if ("bottom" in obj) { |
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322 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; |
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323 } |
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324 }, |
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325 |
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326 _getParentOffset: function() { |
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327 |
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328 //Get the offsetParent and cache its position |
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329 var po = this.offsetParent.offset(); |
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330 |
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331 // This is a special case where we need to modify a offset calculated on start, since the following happened: |
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332 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent |
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333 // 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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334 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag |
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335 if(this.cssPosition === "absolute" && this.scrollParent[0] !== document && $.contains(this.scrollParent[0], this.offsetParent[0])) { |
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336 po.left += this.scrollParent.scrollLeft(); |
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337 po.top += this.scrollParent.scrollTop(); |
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338 } |
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339 |
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340 //This needs to be actually done for all browsers, since pageX/pageY includes this information |
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341 //Ugly IE fix |
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342 if((this.offsetParent[0] === document.body) || |
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343 (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() === "html" && $.ui.ie)) { |
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344 po = { top: 0, left: 0 }; |
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345 } |
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346 |
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347 return { |
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348 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0), |
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349 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) |
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350 }; |
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351 |
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352 }, |
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353 |
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354 _getRelativeOffset: function() { |
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355 |
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356 if(this.cssPosition === "relative") { |
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357 var p = this.element.position(); |
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358 return { |
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359 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), |
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360 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() |
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361 }; |
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362 } else { |
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363 return { top: 0, left: 0 }; |
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364 } |
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365 |
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366 }, |
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367 |
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368 _cacheMargins: function() { |
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369 this.margins = { |
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370 left: (parseInt(this.element.css("marginLeft"),10) || 0), |
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371 top: (parseInt(this.element.css("marginTop"),10) || 0), |
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372 right: (parseInt(this.element.css("marginRight"),10) || 0), |
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373 bottom: (parseInt(this.element.css("marginBottom"),10) || 0) |
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374 }; |
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375 }, |
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376 |
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377 _cacheHelperProportions: function() { |
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378 this.helperProportions = { |
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379 width: this.helper.outerWidth(), |
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380 height: this.helper.outerHeight() |
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381 }; |
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382 }, |
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383 |
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384 _setContainment: function() { |
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385 |
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386 var over, c, ce, |
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387 o = this.options; |
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388 |
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389 if ( !o.containment ) { |
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390 this.containment = null; |
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391 return; |
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392 } |
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393 |
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394 if ( o.containment === "window" ) { |
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395 this.containment = [ |
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396 $( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left, |
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397 $( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top, |
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398 $( window ).scrollLeft() + $( window ).width() - this.helperProportions.width - this.margins.left, |
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399 $( window ).scrollTop() + ( $( window ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top |
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400 ]; |
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401 return; |
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402 } |
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403 |
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404 if ( o.containment === "document") { |
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405 this.containment = [ |
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406 0, |
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407 0, |
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408 $( document ).width() - this.helperProportions.width - this.margins.left, |
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409 ( $( document ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top |
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410 ]; |
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411 return; |
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412 } |
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413 |
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414 if ( o.containment.constructor === Array ) { |
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415 this.containment = o.containment; |
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416 return; |
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417 } |
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418 |
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419 if ( o.containment === "parent" ) { |
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420 o.containment = this.helper[ 0 ].parentNode; |
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421 } |
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422 |
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423 c = $( o.containment ); |
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424 ce = c[ 0 ]; |
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425 |
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426 if( !ce ) { |
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427 return; |
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428 } |
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429 |
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430 over = c.css( "overflow" ) !== "hidden"; |
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431 |
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432 this.containment = [ |
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433 ( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ), |
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434 ( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ) , |
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435 ( over ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) - ( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) - this.helperProportions.width - this.margins.left - this.margins.right, |
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436 ( over ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) - ( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) - ( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) - this.helperProportions.height - this.margins.top - this.margins.bottom |
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437 ]; |
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438 this.relative_container = c; |
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439 }, |
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440 |
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441 _convertPositionTo: function(d, pos) { |
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442 |
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443 if(!pos) { |
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444 pos = this.position; |
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445 } |
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446 |
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447 var mod = d === "absolute" ? 1 : -1, |
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448 scroll = this.cssPosition === "absolute" && !( this.scrollParent[ 0 ] !== document && $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? this.offsetParent : this.scrollParent; |
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449 |
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450 //Cache the scroll |
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451 if (!this.offset.scroll) { |
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452 this.offset.scroll = {top : scroll.scrollTop(), left : scroll.scrollLeft()}; |
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453 } |
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454 |
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455 return { |
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456 top: ( |
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457 pos.top + // The absolute mouse position |
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458 this.offset.relative.top * mod + // Only for relative positioned nodes: Relative offset from element to offset parent |
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459 this.offset.parent.top * mod - // The offsetParent's offset without borders (offset + border) |
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460 ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : this.offset.scroll.top ) * mod ) |
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461 ), |
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462 left: ( |
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463 pos.left + // The absolute mouse position |
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464 this.offset.relative.left * mod + // Only for relative positioned nodes: Relative offset from element to offset parent |
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465 this.offset.parent.left * mod - // The offsetParent's offset without borders (offset + border) |
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466 ( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : this.offset.scroll.left ) * mod ) |
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467 ) |
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468 }; |
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469 |
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470 }, |
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471 |
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472 _generatePosition: function(event) { |
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473 |
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474 var containment, co, top, left, |
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475 o = this.options, |
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476 scroll = this.cssPosition === "absolute" && !( this.scrollParent[ 0 ] !== document && $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ? this.offsetParent : this.scrollParent, |
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477 pageX = event.pageX, |
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478 pageY = event.pageY; |
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479 |
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480 //Cache the scroll |
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481 if (!this.offset.scroll) { |
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482 this.offset.scroll = {top : scroll.scrollTop(), left : scroll.scrollLeft()}; |
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483 } |
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484 |
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485 /* |
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486 * - Position constraining - |
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487 * Constrain the position to a mix of grid, containment. |
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488 */ |
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489 |
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490 // If we are not dragging yet, we won't check for options |
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491 if ( this.originalPosition ) { |
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492 if ( this.containment ) { |
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493 if ( this.relative_container ){ |
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494 co = this.relative_container.offset(); |
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495 containment = [ |
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496 this.containment[ 0 ] + co.left, |
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497 this.containment[ 1 ] + co.top, |
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498 this.containment[ 2 ] + co.left, |
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499 this.containment[ 3 ] + co.top |
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500 ]; |
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501 } |
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502 else { |
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503 containment = this.containment; |
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504 } |
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505 |
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506 if(event.pageX - this.offset.click.left < containment[0]) { |
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507 pageX = containment[0] + this.offset.click.left; |
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508 } |
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509 if(event.pageY - this.offset.click.top < containment[1]) { |
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510 pageY = containment[1] + this.offset.click.top; |
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511 } |
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512 if(event.pageX - this.offset.click.left > containment[2]) { |
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513 pageX = containment[2] + this.offset.click.left; |
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514 } |
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515 if(event.pageY - this.offset.click.top > containment[3]) { |
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516 pageY = containment[3] + this.offset.click.top; |
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517 } |
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518 } |
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519 |
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520 if(o.grid) { |
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521 //Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950) |
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522 top = o.grid[1] ? this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1] : this.originalPageY; |
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523 pageY = containment ? ((top - this.offset.click.top >= containment[1] || top - this.offset.click.top > containment[3]) ? top : ((top - this.offset.click.top >= containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; |
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524 |
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525 left = o.grid[0] ? this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0] : this.originalPageX; |
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526 pageX = containment ? ((left - this.offset.click.left >= containment[0] || left - this.offset.click.left > containment[2]) ? left : ((left - this.offset.click.left >= containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; |
|
527 } |
|
528 |
|
529 } |
|
530 |
|
531 return { |
|
532 top: ( |
|
533 pageY - // The absolute mouse position |
|
534 this.offset.click.top - // Click offset (relative to the element) |
|
535 this.offset.relative.top - // Only for relative positioned nodes: Relative offset from element to offset parent |
|
536 this.offset.parent.top + // The offsetParent's offset without borders (offset + border) |
|
537 ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : this.offset.scroll.top ) |
|
538 ), |
|
539 left: ( |
|
540 pageX - // The absolute mouse position |
|
541 this.offset.click.left - // Click offset (relative to the element) |
|
542 this.offset.relative.left - // Only for relative positioned nodes: Relative offset from element to offset parent |
|
543 this.offset.parent.left + // The offsetParent's offset without borders (offset + border) |
|
544 ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : this.offset.scroll.left ) |
|
545 ) |
|
546 }; |
|
547 |
|
548 }, |
|
549 |
|
550 _clear: function() { |
|
551 this.helper.removeClass("ui-draggable-dragging"); |
|
552 if(this.helper[0] !== this.element[0] && !this.cancelHelperRemoval) { |
|
553 this.helper.remove(); |
|
554 } |
|
555 this.helper = null; |
|
556 this.cancelHelperRemoval = false; |
|
557 }, |
|
558 |
|
559 // From now on bulk stuff - mainly helpers |
|
560 |
|
561 _trigger: function(type, event, ui) { |
|
562 ui = ui || this._uiHash(); |
|
563 $.ui.plugin.call(this, type, [event, ui]); |
|
564 //The absolute position has to be recalculated after plugins |
|
565 if(type === "drag") { |
|
566 this.positionAbs = this._convertPositionTo("absolute"); |
|
567 } |
|
568 return $.Widget.prototype._trigger.call(this, type, event, ui); |
|
569 }, |
|
570 |
|
571 plugins: {}, |
|
572 |
|
573 _uiHash: function() { |
|
574 return { |
|
575 helper: this.helper, |
|
576 position: this.position, |
|
577 originalPosition: this.originalPosition, |
|
578 offset: this.positionAbs |
|
579 }; |
|
580 } |
|
581 |
|
582 }); |
|
583 |
|
584 $.ui.plugin.add("draggable", "connectToSortable", { |
|
585 start: function(event, ui) { |
|
586 |
|
587 var inst = $(this).data("ui-draggable"), o = inst.options, |
|
588 uiSortable = $.extend({}, ui, { item: inst.element }); |
|
589 inst.sortables = []; |
|
590 $(o.connectToSortable).each(function() { |
|
591 var sortable = $.data(this, "ui-sortable"); |
|
592 if (sortable && !sortable.options.disabled) { |
|
593 inst.sortables.push({ |
|
594 instance: sortable, |
|
595 shouldRevert: sortable.options.revert |
|
596 }); |
|
597 sortable.refreshPositions(); // Call the sortable's refreshPositions at drag start to refresh the containerCache since the sortable container cache is used in drag and needs to be up to date (this will ensure it's initialised as well as being kept in step with any changes that might have happened on the page). |
|
598 sortable._trigger("activate", event, uiSortable); |
|
599 } |
|
600 }); |
|
601 |
|
602 }, |
|
603 stop: function(event, ui) { |
|
604 |
|
605 //If we are still over the sortable, we fake the stop event of the sortable, but also remove helper |
|
606 var inst = $(this).data("ui-draggable"), |
|
607 uiSortable = $.extend({}, ui, { item: inst.element }); |
|
608 |
|
609 $.each(inst.sortables, function() { |
|
610 if(this.instance.isOver) { |
|
611 |
|
612 this.instance.isOver = 0; |
|
613 |
|
614 inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance |
|
615 this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work) |
|
616 |
|
617 //The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: "valid/invalid" |
|
618 if(this.shouldRevert) { |
|
619 this.instance.options.revert = this.shouldRevert; |
|
620 } |
|
621 |
|
622 //Trigger the stop of the sortable |
|
623 this.instance._mouseStop(event); |
|
624 |
|
625 this.instance.options.helper = this.instance.options._helper; |
|
626 |
|
627 //If the helper has been the original item, restore properties in the sortable |
|
628 if(inst.options.helper === "original") { |
|
629 this.instance.currentItem.css({ top: "auto", left: "auto" }); |
|
630 } |
|
631 |
|
632 } else { |
|
633 this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance |
|
634 this.instance._trigger("deactivate", event, uiSortable); |
|
635 } |
|
636 |
|
637 }); |
|
638 |
|
639 }, |
|
640 drag: function(event, ui) { |
|
641 |
|
642 var inst = $(this).data("ui-draggable"), that = this; |
|
643 |
|
644 $.each(inst.sortables, function() { |
|
645 |
|
646 var innermostIntersecting = false, |
|
647 thisSortable = this; |
|
648 |
|
649 //Copy over some variables to allow calling the sortable's native _intersectsWith |
|
650 this.instance.positionAbs = inst.positionAbs; |
|
651 this.instance.helperProportions = inst.helperProportions; |
|
652 this.instance.offset.click = inst.offset.click; |
|
653 |
|
654 if(this.instance._intersectsWith(this.instance.containerCache)) { |
|
655 innermostIntersecting = true; |
|
656 $.each(inst.sortables, function () { |
|
657 this.instance.positionAbs = inst.positionAbs; |
|
658 this.instance.helperProportions = inst.helperProportions; |
|
659 this.instance.offset.click = inst.offset.click; |
|
660 if (this !== thisSortable && |
|
661 this.instance._intersectsWith(this.instance.containerCache) && |
|
662 $.contains(thisSortable.instance.element[0], this.instance.element[0]) |
|
663 ) { |
|
664 innermostIntersecting = false; |
|
665 } |
|
666 return innermostIntersecting; |
|
667 }); |
|
668 } |
|
669 |
|
670 |
|
671 if(innermostIntersecting) { |
|
672 //If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once |
|
673 if(!this.instance.isOver) { |
|
674 |
|
675 this.instance.isOver = 1; |
|
676 //Now we fake the start of dragging for the sortable instance, |
|
677 //by cloning the list group item, appending it to the sortable and using it as inst.currentItem |
|
678 //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) |
|
679 this.instance.currentItem = $(that).clone().removeAttr("id").appendTo(this.instance.element).data("ui-sortable-item", true); |
|
680 this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it |
|
681 this.instance.options.helper = function() { return ui.helper[0]; }; |
|
682 |
|
683 event.target = this.instance.currentItem[0]; |
|
684 this.instance._mouseCapture(event, true); |
|
685 this.instance._mouseStart(event, true, true); |
|
686 |
|
687 //Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes |
|
688 this.instance.offset.click.top = inst.offset.click.top; |
|
689 this.instance.offset.click.left = inst.offset.click.left; |
|
690 this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left; |
|
691 this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top; |
|
692 |
|
693 inst._trigger("toSortable", event); |
|
694 inst.dropped = this.instance.element; //draggable revert needs that |
|
695 //hack so receive/update callbacks work (mostly) |
|
696 inst.currentItem = inst.element; |
|
697 this.instance.fromOutside = inst; |
|
698 |
|
699 } |
|
700 |
|
701 //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 |
|
702 if(this.instance.currentItem) { |
|
703 this.instance._mouseDrag(event); |
|
704 } |
|
705 |
|
706 } else { |
|
707 |
|
708 //If it doesn't intersect with the sortable, and it intersected before, |
|
709 //we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval |
|
710 if(this.instance.isOver) { |
|
711 |
|
712 this.instance.isOver = 0; |
|
713 this.instance.cancelHelperRemoval = true; |
|
714 |
|
715 //Prevent reverting on this forced stop |
|
716 this.instance.options.revert = false; |
|
717 |
|
718 // The out event needs to be triggered independently |
|
719 this.instance._trigger("out", event, this.instance._uiHash(this.instance)); |
|
720 |
|
721 this.instance._mouseStop(event, true); |
|
722 this.instance.options.helper = this.instance.options._helper; |
|
723 |
|
724 //Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size |
|
725 this.instance.currentItem.remove(); |
|
726 if(this.instance.placeholder) { |
|
727 this.instance.placeholder.remove(); |
|
728 } |
|
729 |
|
730 inst._trigger("fromSortable", event); |
|
731 inst.dropped = false; //draggable revert needs that |
|
732 } |
|
733 |
|
734 } |
|
735 |
|
736 }); |
|
737 |
|
738 } |
|
739 }); |
|
740 |
|
741 $.ui.plugin.add("draggable", "cursor", { |
|
742 start: function() { |
|
743 var t = $("body"), o = $(this).data("ui-draggable").options; |
|
744 if (t.css("cursor")) { |
|
745 o._cursor = t.css("cursor"); |
|
746 } |
|
747 t.css("cursor", o.cursor); |
|
748 }, |
|
749 stop: function() { |
|
750 var o = $(this).data("ui-draggable").options; |
|
751 if (o._cursor) { |
|
752 $("body").css("cursor", o._cursor); |
|
753 } |
|
754 } |
|
755 }); |
|
756 |
|
757 $.ui.plugin.add("draggable", "opacity", { |
|
758 start: function(event, ui) { |
|
759 var t = $(ui.helper), o = $(this).data("ui-draggable").options; |
|
760 if(t.css("opacity")) { |
|
761 o._opacity = t.css("opacity"); |
|
762 } |
|
763 t.css("opacity", o.opacity); |
|
764 }, |
|
765 stop: function(event, ui) { |
|
766 var o = $(this).data("ui-draggable").options; |
|
767 if(o._opacity) { |
|
768 $(ui.helper).css("opacity", o._opacity); |
|
769 } |
|
770 } |
|
771 }); |
|
772 |
|
773 $.ui.plugin.add("draggable", "scroll", { |
|
774 start: function() { |
|
775 var i = $(this).data("ui-draggable"); |
|
776 if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") { |
|
777 i.overflowOffset = i.scrollParent.offset(); |
|
778 } |
|
779 }, |
|
780 drag: function( event ) { |
|
781 |
|
782 var i = $(this).data("ui-draggable"), o = i.options, scrolled = false; |
|
783 |
|
784 if(i.scrollParent[0] !== document && i.scrollParent[0].tagName !== "HTML") { |
|
785 |
|
786 if(!o.axis || o.axis !== "x") { |
|
787 if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) { |
|
788 i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed; |
|
789 } else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity) { |
|
790 i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed; |
|
791 } |
|
792 } |
|
793 |
|
794 if(!o.axis || o.axis !== "y") { |
|
795 if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) { |
|
796 i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed; |
|
797 } else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity) { |
|
798 i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed; |
|
799 } |
|
800 } |
|
801 |
|
802 } else { |
|
803 |
|
804 if(!o.axis || o.axis !== "x") { |
|
805 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) { |
|
806 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); |
|
807 } else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) { |
|
808 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); |
|
809 } |
|
810 } |
|
811 |
|
812 if(!o.axis || o.axis !== "y") { |
|
813 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) { |
|
814 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); |
|
815 } else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) { |
|
816 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); |
|
817 } |
|
818 } |
|
819 |
|
820 } |
|
821 |
|
822 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) { |
|
823 $.ui.ddmanager.prepareOffsets(i, event); |
|
824 } |
|
825 |
|
826 } |
|
827 }); |
|
828 |
|
829 $.ui.plugin.add("draggable", "snap", { |
|
830 start: function() { |
|
831 |
|
832 var i = $(this).data("ui-draggable"), |
|
833 o = i.options; |
|
834 |
|
835 i.snapElements = []; |
|
836 |
|
837 $(o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap).each(function() { |
|
838 var $t = $(this), |
|
839 $o = $t.offset(); |
|
840 if(this !== i.element[0]) { |
|
841 i.snapElements.push({ |
|
842 item: this, |
|
843 width: $t.outerWidth(), height: $t.outerHeight(), |
|
844 top: $o.top, left: $o.left |
|
845 }); |
|
846 } |
|
847 }); |
|
848 |
|
849 }, |
|
850 drag: function(event, ui) { |
|
851 |
|
852 var ts, bs, ls, rs, l, r, t, b, i, first, |
|
853 inst = $(this).data("ui-draggable"), |
|
854 o = inst.options, |
|
855 d = o.snapTolerance, |
|
856 x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width, |
|
857 y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height; |
|
858 |
|
859 for (i = inst.snapElements.length - 1; i >= 0; i--){ |
|
860 |
|
861 l = inst.snapElements[i].left; |
|
862 r = l + inst.snapElements[i].width; |
|
863 t = inst.snapElements[i].top; |
|
864 b = t + inst.snapElements[i].height; |
|
865 |
|
866 if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d || !$.contains( inst.snapElements[ i ].item.ownerDocument, inst.snapElements[ i ].item ) ) { |
|
867 if(inst.snapElements[i].snapping) { |
|
868 (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
|
869 } |
|
870 inst.snapElements[i].snapping = false; |
|
871 continue; |
|
872 } |
|
873 |
|
874 if(o.snapMode !== "inner") { |
|
875 ts = Math.abs(t - y2) <= d; |
|
876 bs = Math.abs(b - y1) <= d; |
|
877 ls = Math.abs(l - x2) <= d; |
|
878 rs = Math.abs(r - x1) <= d; |
|
879 if(ts) { |
|
880 ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
|
881 } |
|
882 if(bs) { |
|
883 ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top; |
|
884 } |
|
885 if(ls) { |
|
886 ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left; |
|
887 } |
|
888 if(rs) { |
|
889 ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left; |
|
890 } |
|
891 } |
|
892 |
|
893 first = (ts || bs || ls || rs); |
|
894 |
|
895 if(o.snapMode !== "outer") { |
|
896 ts = Math.abs(t - y1) <= d; |
|
897 bs = Math.abs(b - y2) <= d; |
|
898 ls = Math.abs(l - x1) <= d; |
|
899 rs = Math.abs(r - x2) <= d; |
|
900 if(ts) { |
|
901 ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top; |
|
902 } |
|
903 if(bs) { |
|
904 ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top; |
|
905 } |
|
906 if(ls) { |
|
907 ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left; |
|
908 } |
|
909 if(rs) { |
|
910 ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left; |
|
911 } |
|
912 } |
|
913 |
|
914 if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first)) { |
|
915 (inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); |
|
916 } |
|
917 inst.snapElements[i].snapping = (ts || bs || ls || rs || first); |
|
918 |
|
919 } |
|
920 |
|
921 } |
|
922 }); |
|
923 |
|
924 $.ui.plugin.add("draggable", "stack", { |
|
925 start: function() { |
|
926 var min, |
|
927 o = this.data("ui-draggable").options, |
|
928 group = $.makeArray($(o.stack)).sort(function(a,b) { |
|
929 return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0); |
|
930 }); |
|
931 |
|
932 if (!group.length) { return; } |
|
933 |
|
934 min = parseInt($(group[0]).css("zIndex"), 10) || 0; |
|
935 $(group).each(function(i) { |
|
936 $(this).css("zIndex", min + i); |
|
937 }); |
|
938 this.css("zIndex", (min + group.length)); |
|
939 } |
|
940 }); |
|
941 |
|
942 $.ui.plugin.add("draggable", "zIndex", { |
|
943 start: function(event, ui) { |
|
944 var t = $(ui.helper), o = $(this).data("ui-draggable").options; |
|
945 if(t.css("zIndex")) { |
|
946 o._zIndex = t.css("zIndex"); |
|
947 } |
|
948 t.css("zIndex", o.zIndex); |
|
949 }, |
|
950 stop: function(event, ui) { |
|
951 var o = $(this).data("ui-draggable").options; |
|
952 if(o._zIndex) { |
|
953 $(ui.helper).css("zIndex", o._zIndex); |
|
954 } |
|
955 } |
|
956 }); |
|
957 |
|
958 })(jQuery); |
|