text: /*!
   * jQuery UI Draggable 1.13.0
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   */
  
  //>>label: Draggable
  //>>group: Interactions
  //>>description: Enables dragging functionality for any element.
  //>>docs: http://api.jqueryui.com/draggable/
  //>>demos: http://jqueryui.com/draggable/
  //>>css.structure: ../../themes/base/draggable.css
  
  ( function( factory ) {
  	"use strict";
  
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./mouse",
  			"./core"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } )( function( $ ) {
  "use strict";
  
  $.widget( "ui.draggable", $.ui.mouse, {
  	version: "1.13.0",
  	widgetEventPrefix: "drag",
  	options: {
  		addClasses: true,
  		appendTo: "parent",
  		axis: false,
  		connectToSortable: false,
  		containment: false,
  		cursor: "auto",
  		cursorAt: false,
  		grid: false,
  		handle: false,
  		helper: "original",
  		iframeFix: false,
  		opacity: false,
  		refreshPositions: false,
  		revert: false,
  		revertDuration: 500,
  		scope: "default",
  		scroll: true,
  		scrollSensitivity: 20,
  		scrollSpeed: 20,
  		snap: false,
  		snapMode: "both",
  		snapTolerance: 20,
  		stack: false,
  		zIndex: false,
  
  		// Callbacks
  		drag: null,
  		start: null,
  		stop: null
  	},
  	_create: function() {
  
  		if ( this.options.helper === "original" ) {
  			this._setPositionRelative();
  		}
  		if ( this.options.addClasses ) {
  			this._addClass( "ui-draggable" );
  		}
  		this._setHandleClassName();
  
  		this._mouseInit();
  	},
  
  	_setOption: function( key, value ) {
  		this._super( key, value );
  		if ( key === "handle" ) {
  			this._removeHandleClassName();
  			this._setHandleClassName();
  		}
  	},
  
  	_destroy: function() {
  		if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
  			this.destroyOnClear = true;
  			return;
  		}
  		this._removeHandleClassName();
  		this._mouseDestroy();
  	},
  
  	_mouseCapture: function( event ) {
  		var o = this.options;
  
  		// Among others, prevent a drag on a resizable-handle
  		if ( this.helper || o.disabled ||
  				$( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
  			return false;
  		}
  
  		//Quit if we're not on a valid handle
  		this.handle = this._getHandle( event );
  		if ( !this.handle ) {
  			return false;
  		}
  
  		this._blurActiveElement( event );
  
  		this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
  
  		return true;
  
  	},
  
  	_blockFrames: function( selector ) {
  		this.iframeBlocks = this.document.find( selector ).map( function() {
  			var iframe = $( this );
  
  			return $( "<div>" )
  				.css( "position", "absolute" )
  				.appendTo( iframe.parent() )
  				.outerWidth( iframe.outerWidth() )
  				.outerHeight( iframe.outerHeight() )
  				.offset( iframe.offset() )[ 0 ];
  		} );
  	},
  
  	_unblockFrames: function() {
  		if ( this.iframeBlocks ) {
  			this.iframeBlocks.remove();
  			delete this.iframeBlocks;
  		}
  	},
  
  	_blurActiveElement: function( event ) {
  		var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
  			target = $( event.target );
  
  		// Don't blur if the event occurred on an element that is within
  		// the currently focused element
  		// See #10527, #12472
  		if ( target.closest( activeElement ).length ) {
  			return;
  		}
  
  		// Blur any element that currently has focus, see #4261
  		$.ui.safeBlur( activeElement );
  	},
  
  	_mouseStart: function( event ) {
  
  		var o = this.options;
  
  		//Create and append the visible helper
  		this.helper = this._createHelper( event );
  
  		this._addClass( this.helper, "ui-draggable-dragging" );
  
  		//Cache the helper size
  		this._cacheHelperProportions();
  
  		//If ddmanager is used for droppables, set the global draggable
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.current = this;
  		}
  
  		/*
  		 * - Position generation -
  		 * This block generates everything position related - it's the core of draggables.
  		 */
  
  		//Cache the margins of the original element
  		this._cacheMargins();
  
  		//Store the helper's css position
  		this.cssPosition = this.helper.css( "position" );
  		this.scrollParent = this.helper.scrollParent( true );
  		this.offsetParent = this.helper.offsetParent();
  		this.hasFixedAncestor = this.helper.parents().filter( function() {
  				return $( this ).css( "position" ) === "fixed";
  			} ).length > 0;
  
  		//The element's absolute position on the page minus margins
  		this.positionAbs = this.element.offset();
  		this._refreshOffsets( event );
  
  		//Generate the original position
  		this.originalPosition = this.position = this._generatePosition( event, false );
  		this.originalPageX = event.pageX;
  		this.originalPageY = event.pageY;
  
  		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
  		if ( o.cursorAt ) {
  			this._adjustOffsetFromHelper( o.cursorAt );
  		}
  
  		//Set a containment if given in the options
  		this._setContainment();
  
  		//Trigger event + callbacks
  		if ( this._trigger( "start", event ) === false ) {
  			this._clear();
  			return false;
  		}
  
  		//Recache the helper size
  		this._cacheHelperProportions();
  
  		//Prepare the droppable offsets
  		if ( $.ui.ddmanager && !o.dropBehaviour ) {
  			$.ui.ddmanager.prepareOffsets( this, event );
  		}
  
  		// Execute the drag once - this causes the helper not to be visible before getting its
  		// correct position
  		this._mouseDrag( event, true );
  
  		// If the ddmanager is used for droppables, inform the manager that dragging has started
  		// (see #5003)
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.dragStart( this, event );
  		}
  
  		return true;
  	},
  
  	_refreshOffsets: function( event ) {
  		this.offset = {
  			top: this.positionAbs.top - this.margins.top,
  			left: this.positionAbs.left - this.margins.left,
  			scroll: false,
  			parent: this._getParentOffset(),
  			relative: this._getRelativeOffset()
  		};
  
  		this.offset.click = {
  			left: event.pageX - this.offset.left,
  			top: event.pageY - this.offset.top
  		};
  	},
  
  	_mouseDrag: function( event, noPropagation ) {
  
  		// reset any necessary cached properties (see #5009)
  		if ( this.hasFixedAncestor ) {
  			this.offset.parent = this._getParentOffset();
  		}
  
  		//Compute the helpers position
  		this.position = this._generatePosition( event, true );
  		this.positionAbs = this._convertPositionTo( "absolute" );
  
  		//Call plugins and callbacks and use the resulting position if something is returned
  		if ( !noPropagation ) {
  			var ui = this._uiHash();
  			if ( this._trigger( "drag", event, ui ) === false ) {
  				this._mouseUp( new $.Event( "mouseup", event ) );
  				return false;
  			}
  			this.position = ui.position;
  		}
  
  		this.helper[ 0 ].style.left = this.position.left + "px";
  		this.helper[ 0 ].style.top = this.position.top + "px";
  
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.drag( this, event );
  		}
  
  		return false;
  	},
  
  	_mouseStop: function( event ) {
  
  		//If we are using droppables, inform the manager about the drop
  		var that = this,
  			dropped = false;
  		if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
  			dropped = $.ui.ddmanager.drop( this, event );
  		}
  
  		//if a drop comes from outside (a sortable)
  		if ( this.dropped ) {
  			dropped = this.dropped;
  			this.dropped = false;
  		}
  
  		if ( ( this.options.revert === "invalid" && !dropped ) ||
  				( this.options.revert === "valid" && dropped ) ||
  				this.options.revert === true || ( typeof this.options.revert === "function" &&
  				this.options.revert.call( this.element, dropped ) )
  		) {
  			$( this.helper ).animate(
  				this.originalPosition,
  				parseInt( this.options.revertDuration, 10 ),
  				function() {
  					if ( that._trigger( "stop", event ) !== false ) {
  						that._clear();
  					}
  				}
  			);
  		} else {
  			if ( this._trigger( "stop", event ) !== false ) {
  				this._clear();
  			}
  		}
  
  		return false;
  	},
  
  	_mouseUp: function( event ) {
  		this._unblockFrames();
  
  		// If the ddmanager is used for droppables, inform the manager that dragging has stopped
  		// (see #5003)
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.dragStop( this, event );
  		}
  
  		// Only need to focus if the event occurred on the draggable itself, see #10527
  		if ( this.handleElement.is( event.target ) ) {
  
  			// The interaction is over; whether or not the click resulted in a drag,
  			// focus the element
  			this.element.trigger( "focus" );
  		}
  
  		return $.ui.mouse.prototype._mouseUp.call( this, event );
  	},
  
  	cancel: function() {
  
  		if ( this.helper.is( ".ui-draggable-dragging" ) ) {
  			this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
  		} else {
  			this._clear();
  		}
  
  		return this;
  
  	},
  
  	_getHandle: function( event ) {
  		return this.options.handle ?
  			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
  			true;
  	},
  
  	_setHandleClassName: function() {
  		this.handleElement = this.options.handle ?
  			this.element.find( this.options.handle ) : this.element;
  		this._addClass( this.handleElement, "ui-draggable-handle" );
  	},
  
  	_removeHandleClassName: function() {
  		this._removeClass( this.handleElement, "ui-draggable-handle" );
  	},
  
  	_createHelper: function( event ) {
  
  		var o = this.options,
  			helperIsFunction = typeof o.helper === "function",
  			helper = helperIsFunction ?
  				$( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
  				( o.helper === "clone" ?
  					this.element.clone().removeAttr( "id" ) :
  					this.element );
  
  		if ( !helper.parents( "body" ).length ) {
  			helper.appendTo( ( o.appendTo === "parent" ?
  				this.element[ 0 ].parentNode :
  				o.appendTo ) );
  		}
  
  		// Http://bugs.jqueryui.com/ticket/9446
  		// a helper function can return the original element
  		// which wouldn't have been set to relative in _create
  		if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
  			this._setPositionRelative();
  		}
  
  		if ( helper[ 0 ] !== this.element[ 0 ] &&
  				!( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
  			helper.css( "position", "absolute" );
  		}
  
  		return helper;
  
  	},
  
  	_setPositionRelative: function() {
  		if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
  			this.element[ 0 ].style.position = "relative";
  		}
  	},
  
  	_adjustOffsetFromHelper: function( obj ) {
  		if ( typeof obj === "string" ) {
  			obj = obj.split( " " );
  		}
  		if ( Array.isArray( obj ) ) {
  			obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
  		}
  		if ( "left" in obj ) {
  			this.offset.click.left = obj.left + this.margins.left;
  		}
  		if ( "right" in obj ) {
  			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
  		}
  		if ( "top" in obj ) {
  			this.offset.click.top = obj.top + this.margins.top;
  		}
  		if ( "bottom" in obj ) {
  			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
  		}
  	},
  
  	_isRootNode: function( element ) {
  		return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
  	},
  
  	_getParentOffset: function() {
  
  		//Get the offsetParent and cache its position
  		var po = this.offsetParent.offset(),
  			document = this.document[ 0 ];
  
  		// This is a special case where we need to modify a offset calculated on start, since the
  		// following happened:
  		// 1. The position of the helper is absolute, so it's position is calculated based on the
  		// next positioned parent
  		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't
  		// the document, which means that the scroll is included in the initial calculation of the
  		// offset of the parent, and never recalculated upon drag
  		if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document &&
  				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
  			po.left += this.scrollParent.scrollLeft();
  			po.top += this.scrollParent.scrollTop();
  		}
  
  		if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
  			po = { top: 0, left: 0 };
  		}
  
  		return {
  			top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
  			left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
  		};
  
  	},
  
  	_getRelativeOffset: function() {
  		if ( this.cssPosition !== "relative" ) {
  			return { top: 0, left: 0 };
  		}
  
  		var p = this.element.position(),
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
  
  		return {
  			top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
  				( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
  			left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
  				( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
  		};
  
  	},
  
  	_cacheMargins: function() {
  		this.margins = {
  			left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
  			top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
  			right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
  			bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
  		};
  	},
  
  	_cacheHelperProportions: function() {
  		this.helperProportions = {
  			width: this.helper.outerWidth(),
  			height: this.helper.outerHeight()
  		};
  	},
  
  	_setContainment: function() {
  
  		var isUserScrollable, c, ce,
  			o = this.options,
  			document = this.document[ 0 ];
  
  		this.relativeContainer = null;
  
  		if ( !o.containment ) {
  			this.containment = null;
  			return;
  		}
  
  		if ( o.containment === "window" ) {
  			this.containment = [
  				$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
  				$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
  				$( window ).scrollLeft() + $( window ).width() -
  					this.helperProportions.width - this.margins.left,
  				$( window ).scrollTop() +
  					( $( window ).height() || document.body.parentNode.scrollHeight ) -
  					this.helperProportions.height - this.margins.top
  			];
  			return;
  		}
  
  		if ( o.containment === "document" ) {
  			this.containment = [
  				0,
  				0,
  				$( document ).width() - this.helperProportions.width - this.margins.left,
  				( $( document ).height() || document.body.parentNode.scrollHeight ) -
  					this.helperProportions.height - this.margins.top
  			];
  			return;
  		}
  
  		if ( o.containment.constructor === Array ) {
  			this.containment = o.containment;
  			return;
  		}
  
  		if ( o.containment === "parent" ) {
  			o.containment = this.helper[ 0 ].parentNode;
  		}
  
  		c = $( o.containment );
  		ce = c[ 0 ];
  
  		if ( !ce ) {
  			return;
  		}
  
  		isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
  
  		this.containment = [
  			( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
  				( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
  			( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
  				( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
  			( isUserScrollable ? 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,
  			( isUserScrollable ? 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
  		];
  		this.relativeContainer = c;
  	},
  
  	_convertPositionTo: function( d, pos ) {
  
  		if ( !pos ) {
  			pos = this.position;
  		}
  
  		var mod = d === "absolute" ? 1 : -1,
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
  
  		return {
  			top: (
  
  				// The absolute mouse position
  				pos.top	+
  
  				// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.relative.top * mod +
  
  				// The offsetParent's offset without borders (offset + border)
  				this.offset.parent.top * mod -
  				( ( this.cssPosition === "fixed" ?
  					-this.offset.scroll.top :
  					( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
  			),
  			left: (
  
  				// The absolute mouse position
  				pos.left +
  
  				// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.relative.left * mod +
  
  				// The offsetParent's offset without borders (offset + border)
  				this.offset.parent.left * mod	-
  				( ( this.cssPosition === "fixed" ?
  					-this.offset.scroll.left :
  					( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
  			)
  		};
  
  	},
  
  	_generatePosition: function( event, constrainPosition ) {
  
  		var containment, co, top, left,
  			o = this.options,
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
  			pageX = event.pageX,
  			pageY = event.pageY;
  
  		// Cache the scroll
  		if ( !scrollIsRootNode || !this.offset.scroll ) {
  			this.offset.scroll = {
  				top: this.scrollParent.scrollTop(),
  				left: this.scrollParent.scrollLeft()
  			};
  		}
  
  		/*
  		 * - Position constraining -
  		 * Constrain the position to a mix of grid, containment.
  		 */
  
  		// If we are not dragging yet, we won't check for options
  		if ( constrainPosition ) {
  			if ( this.containment ) {
  				if ( this.relativeContainer ) {
  					co = this.relativeContainer.offset();
  					containment = [
  						this.containment[ 0 ] + co.left,
  						this.containment[ 1 ] + co.top,
  						this.containment[ 2 ] + co.left,
  						this.containment[ 3 ] + co.top
  					];
  				} else {
  					containment = this.containment;
  				}
  
  				if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
  					pageX = containment[ 0 ] + this.offset.click.left;
  				}
  				if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
  					pageY = containment[ 1 ] + this.offset.click.top;
  				}
  				if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
  					pageX = containment[ 2 ] + this.offset.click.left;
  				}
  				if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
  					pageY = containment[ 3 ] + this.offset.click.top;
  				}
  			}
  
  			if ( o.grid ) {
  
  				//Check for grid elements set to 0 to prevent divide by 0 error causing invalid
  				// argument errors in IE (see ticket #6950)
  				top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY -
  					this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
  				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;
  
  				left = o.grid[ 0 ] ? this.originalPageX +
  					Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] :
  					this.originalPageX;
  				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;
  			}
  
  			if ( o.axis === "y" ) {
  				pageX = this.originalPageX;
  			}
  
  			if ( o.axis === "x" ) {
  				pageY = this.originalPageY;
  			}
  		}
  
  		return {
  			top: (
  
  				// The absolute mouse position
  				pageY -
  
  				// Click offset (relative to the element)
  				this.offset.click.top -
  
  				// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.relative.top -
  
  				// The offsetParent's offset without borders (offset + border)
  				this.offset.parent.top +
  				( this.cssPosition === "fixed" ?
  					-this.offset.scroll.top :
  					( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
  			),
  			left: (
  
  				// The absolute mouse position
  				pageX -
  
  				// Click offset (relative to the element)
  				this.offset.click.left -
  
  				// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.relative.left -
  
  				// The offsetParent's offset without borders (offset + border)
  				this.offset.parent.left +
  				( this.cssPosition === "fixed" ?
  					-this.offset.scroll.left :
  					( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
  			)
  		};
  
  	},
  
  	_clear: function() {
  		this._removeClass( this.helper, "ui-draggable-dragging" );
  		if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
  			this.helper.remove();
  		}
  		this.helper = null;
  		this.cancelHelperRemoval = false;
  		if ( this.destroyOnClear ) {
  			this.destroy();
  		}
  	},
  
  	// From now on bulk stuff - mainly helpers
  
  	_trigger: function( type, event, ui ) {
  		ui = ui || this._uiHash();
  		$.ui.plugin.call( this, type, [ event, ui, this ], true );
  
  		// Absolute position and offset (see #6884 ) have to be recalculated after plugins
  		if ( /^(drag|start|stop)/.test( type ) ) {
  			this.positionAbs = this._convertPositionTo( "absolute" );
  			ui.offset = this.positionAbs;
  		}
  		return $.Widget.prototype._trigger.call( this, type, event, ui );
  	},
  
  	plugins: {},
  
  	_uiHash: function() {
  		return {
  			helper: this.helper,
  			position: this.position,
  			originalPosition: this.originalPosition,
  			offset: this.positionAbs
  		};
  	}
  
  } );
  
  $.ui.plugin.add( "draggable", "connectToSortable", {
  	start: function( event, ui, draggable ) {
  		var uiSortable = $.extend( {}, ui, {
  			item: draggable.element
  		} );
  
  		draggable.sortables = [];
  		$( draggable.options.connectToSortable ).each( function() {
  			var sortable = $( this ).sortable( "instance" );
  
  			if ( sortable && !sortable.options.disabled ) {
  				draggable.sortables.push( sortable );
  
  				// RefreshPositions is called at drag start to refresh the containerCache
  				// which is used in drag. This ensures it's initialized and synchronized
  				// with any changes that might have happened on the page since initialization.
  				sortable.refreshPositions();
  				sortable._trigger( "activate", event, uiSortable );
  			}
  		} );
  	},
  	stop: function( event, ui, draggable ) {
  		var uiSortable = $.extend( {}, ui, {
  			item: draggable.element
  		} );
  
  		draggable.cancelHelperRemoval = false;
  
  		$.each( draggable.sortables, function() {
  			var sortable = this;
  
  			if ( sortable.isOver ) {
  				sortable.isOver = 0;
  
  				// Allow this sortable to handle removing the helper
  				draggable.cancelHelperRemoval = true;
  				sortable.cancelHelperRemoval = false;
  
  				// Use _storedCSS To restore properties in the sortable,
  				// as this also handles revert (#9675) since the draggable
  				// may have modified them in unexpected ways (#8809)
  				sortable._storedCSS = {
  					position: sortable.placeholder.css( "position" ),
  					top: sortable.placeholder.css( "top" ),
  					left: sortable.placeholder.css( "left" )
  				};
  
  				sortable._mouseStop( event );
  
  				// Once drag has ended, the sortable should return to using
  				// its original helper, not the shared helper from draggable
  				sortable.options.helper = sortable.options._helper;
  			} else {
  
  				// Prevent this Sortable from removing the helper.
  				// However, don't set the draggable to remove the helper
  				// either as another connected Sortable may yet handle the removal.
  				sortable.cancelHelperRemoval = true;
  
  				sortable._trigger( "deactivate", event, uiSortable );
  			}
  		} );
  	},
  	drag: function( event, ui, draggable ) {
  		$.each( draggable.sortables, function() {
  			var innermostIntersecting = false,
  				sortable = this;
  
  			// Copy over variables that sortable's _intersectsWith uses
  			sortable.positionAbs = draggable.positionAbs;
  			sortable.helperProportions = draggable.helperProportions;
  			sortable.offset.click = draggable.offset.click;
  
  			if ( sortable._intersectsWith( sortable.containerCache ) ) {
  				innermostIntersecting = true;
  
  				$.each( draggable.sortables, function() {
  
  					// Copy over variables that sortable's _intersectsWith uses
  					this.positionAbs = draggable.positionAbs;
  					this.helperProportions = draggable.helperProportions;
  					this.offset.click = draggable.offset.click;
  
  					if ( this !== sortable &&
  							this._intersectsWith( this.containerCache ) &&
  							$.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
  						innermostIntersecting = false;
  					}
  
  					return innermostIntersecting;
  				} );
  			}
  
  			if ( innermostIntersecting ) {
  
  				// If it intersects, we use a little isOver variable and set it once,
  				// so that the move-in stuff gets fired only once.
  				if ( !sortable.isOver ) {
  					sortable.isOver = 1;
  
  					// Store draggable's parent in case we need to reappend to it later.
  					draggable._parent = ui.helper.parent();
  
  					sortable.currentItem = ui.helper
  						.appendTo( sortable.element )
  						.data( "ui-sortable-item", true );
  
  					// Store helper option to later restore it
  					sortable.options._helper = sortable.options.helper;
  
  					sortable.options.helper = function() {
  						return ui.helper[ 0 ];
  					};
  
  					// Fire the start events of the sortable with our passed browser event,
  					// and our own helper (so it doesn't create a new one)
  					event.target = sortable.currentItem[ 0 ];
  					sortable._mouseCapture( event, true );
  					sortable._mouseStart( event, true, true );
  
  					// Because the browser event is way off the new appended portlet,
  					// modify necessary variables to reflect the changes
  					sortable.offset.click.top = draggable.offset.click.top;
  					sortable.offset.click.left = draggable.offset.click.left;
  					sortable.offset.parent.left -= draggable.offset.parent.left -
  						sortable.offset.parent.left;
  					sortable.offset.parent.top -= draggable.offset.parent.top -
  						sortable.offset.parent.top;
  
  					draggable._trigger( "toSortable", event );
  
  					// Inform draggable that the helper is in a valid drop zone,
  					// used solely in the revert option to handle "valid/invalid".
  					draggable.dropped = sortable.element;
  
  					// Need to refreshPositions of all sortables in the case that
  					// adding to one sortable changes the location of the other sortables (#9675)
  					$.each( draggable.sortables, function() {
  						this.refreshPositions();
  					} );
  
  					// Hack so receive/update callbacks work (mostly)
  					draggable.currentItem = draggable.element;
  					sortable.fromOutside = draggable;
  				}
  
  				if ( sortable.currentItem ) {
  					sortable._mouseDrag( event );
  
  					// Copy the sortable's position because the draggable's can potentially reflect
  					// a relative position, while sortable is always absolute, which the dragged
  					// element has now become. (#8809)
  					ui.position = sortable.position;
  				}
  			} else {
  
  				// If it doesn't intersect with the sortable, and it intersected before,
  				// we fake the drag stop of the sortable, but make sure it doesn't remove
  				// the helper by using cancelHelperRemoval.
  				if ( sortable.isOver ) {
  
  					sortable.isOver = 0;
  					sortable.cancelHelperRemoval = true;
  
  					// Calling sortable's mouseStop would trigger a revert,
  					// so revert must be temporarily false until after mouseStop is called.
  					sortable.options._revert = sortable.options.revert;
  					sortable.options.revert = false;
  
  					sortable._trigger( "out", event, sortable._uiHash( sortable ) );
  					sortable._mouseStop( event, true );
  
  					// Restore sortable behaviors that were modfied
  					// when the draggable entered the sortable area (#9481)
  					sortable.options.revert = sortable.options._revert;
  					sortable.options.helper = sortable.options._helper;
  
  					if ( sortable.placeholder ) {
  						sortable.placeholder.remove();
  					}
  
  					// Restore and recalculate the draggable's offset considering the sortable
  					// may have modified them in unexpected ways. (#8809, #10669)
  					ui.helper.appendTo( draggable._parent );
  					draggable._refreshOffsets( event );
  					ui.position = draggable._generatePosition( event, true );
  
  					draggable._trigger( "fromSortable", event );
  
  					// Inform draggable that the helper is no longer in a valid drop zone
  					draggable.dropped = false;
  
  					// Need to refreshPositions of all sortables just in case removing
  					// from one sortable changes the location of other sortables (#9675)
  					$.each( draggable.sortables, function() {
  						this.refreshPositions();
  					} );
  				}
  			}
  		} );
  	}
  } );
  
  $.ui.plugin.add( "draggable", "cursor", {
  	start: function( event, ui, instance ) {
  		var t = $( "body" ),
  			o = instance.options;
  
  		if ( t.css( "cursor" ) ) {
  			o._cursor = t.css( "cursor" );
  		}
  		t.css( "cursor", o.cursor );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  		if ( o._cursor ) {
  			$( "body" ).css( "cursor", o._cursor );
  		}
  	}
  } );
  
  $.ui.plugin.add( "draggable", "opacity", {
  	start: function( event, ui, instance ) {
  		var t = $( ui.helper ),
  			o = instance.options;
  		if ( t.css( "opacity" ) ) {
  			o._opacity = t.css( "opacity" );
  		}
  		t.css( "opacity", o.opacity );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  		if ( o._opacity ) {
  			$( ui.helper ).css( "opacity", o._opacity );
  		}
  	}
  } );
  
  $.ui.plugin.add( "draggable", "scroll", {
  	start: function( event, ui, i ) {
  		if ( !i.scrollParentNotHidden ) {
  			i.scrollParentNotHidden = i.helper.scrollParent( false );
  		}
  
  		if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
  				i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
  			i.overflowOffset = i.scrollParentNotHidden.offset();
  		}
  	},
  	drag: function( event, ui, i  ) {
  
  		var o = i.options,
  			scrolled = false,
  			scrollParent = i.scrollParentNotHidden[ 0 ],
  			document = i.document[ 0 ];
  
  		if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
  			if ( !o.axis || o.axis !== "x" ) {
  				if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
  						o.scrollSensitivity ) {
  					scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
  				} else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
  					scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
  				}
  			}
  
  			if ( !o.axis || o.axis !== "y" ) {
  				if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
  						o.scrollSensitivity ) {
  					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
  				} else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
  					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
  				}
  			}
  
  		} else {
  
  			if ( !o.axis || o.axis !== "x" ) {
  				if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
  				} else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) <
  						o.scrollSensitivity ) {
  					scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
  				}
  			}
  
  			if ( !o.axis || o.axis !== "y" ) {
  				if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollLeft(
  						$( document ).scrollLeft() - o.scrollSpeed
  					);
  				} else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) <
  						o.scrollSensitivity ) {
  					scrolled = $( document ).scrollLeft(
  						$( document ).scrollLeft() + o.scrollSpeed
  					);
  				}
  			}
  
  		}
  
  		if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
  			$.ui.ddmanager.prepareOffsets( i, event );
  		}
  
  	}
  } );
  
  $.ui.plugin.add( "draggable", "snap", {
  	start: function( event, ui, i ) {
  
  		var o = i.options;
  
  		i.snapElements = [];
  
  		$( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
  			.each( function() {
  				var $t = $( this ),
  					$o = $t.offset();
  				if ( this !== i.element[ 0 ] ) {
  					i.snapElements.push( {
  						item: this,
  						width: $t.outerWidth(), height: $t.outerHeight(),
  						top: $o.top, left: $o.left
  					} );
  				}
  			} );
  
  	},
  	drag: function( event, ui, inst ) {
  
  		var ts, bs, ls, rs, l, r, t, b, i, first,
  			o = inst.options,
  			d = o.snapTolerance,
  			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
  			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
  
  		for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
  
  			l = inst.snapElements[ i ].left - inst.margins.left;
  			r = l + inst.snapElements[ i ].width;
  			t = inst.snapElements[ i ].top - inst.margins.top;
  			b = t + inst.snapElements[ i ].height;
  
  			if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
  					!$.contains( inst.snapElements[ i ].item.ownerDocument,
  					inst.snapElements[ i ].item ) ) {
  				if ( inst.snapElements[ i ].snapping ) {
  					if ( inst.options.snap.release ) {
  						inst.options.snap.release.call(
  							inst.element,
  							event,
  							$.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } )
  						);
  					}
  				}
  				inst.snapElements[ i ].snapping = false;
  				continue;
  			}
  
  			if ( o.snapMode !== "inner" ) {
  				ts = Math.abs( t - y2 ) <= d;
  				bs = Math.abs( b - y1 ) <= d;
  				ls = Math.abs( l - x2 ) <= d;
  				rs = Math.abs( r - x1 ) <= d;
  				if ( ts ) {
  					ui.position.top = inst._convertPositionTo( "relative", {
  						top: t - inst.helperProportions.height,
  						left: 0
  					} ).top;
  				}
  				if ( bs ) {
  					ui.position.top = inst._convertPositionTo( "relative", {
  						top: b,
  						left: 0
  					} ).top;
  				}
  				if ( ls ) {
  					ui.position.left = inst._convertPositionTo( "relative", {
  						top: 0,
  						left: l - inst.helperProportions.width
  					} ).left;
  				}
  				if ( rs ) {
  					ui.position.left = inst._convertPositionTo( "relative", {
  						top: 0,
  						left: r
  					} ).left;
  				}
  			}
  
  			first = ( ts || bs || ls || rs );
  
  			if ( o.snapMode !== "outer" ) {
  				ts = Math.abs( t - y1 ) <= d;
  				bs = Math.abs( b - y2 ) <= d;
  				ls = Math.abs( l - x1 ) <= d;
  				rs = Math.abs( r - x2 ) <= d;
  				if ( ts ) {
  					ui.position.top = inst._convertPositionTo( "relative", {
  						top: t,
  						left: 0
  					} ).top;
  				}
  				if ( bs ) {
  					ui.position.top = inst._convertPositionTo( "relative", {
  						top: b - inst.helperProportions.height,
  						left: 0
  					} ).top;
  				}
  				if ( ls ) {
  					ui.position.left = inst._convertPositionTo( "relative", {
  						top: 0,
  						left: l
  					} ).left;
  				}
  				if ( rs ) {
  					ui.position.left = inst._convertPositionTo( "relative", {
  						top: 0,
  						left: r - inst.helperProportions.width
  					} ).left;
  				}
  			}
  
  			if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
  				if ( inst.options.snap.snap ) {
  					inst.options.snap.snap.call(
  						inst.element,
  						event,
  						$.extend( inst._uiHash(), {
  							snapItem: inst.snapElements[ i ].item
  						} ) );
  				}
  			}
  			inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );
  
  		}
  
  	}
  } );
  
  $.ui.plugin.add( "draggable", "stack", {
  	start: function( event, ui, instance ) {
  		var min,
  			o = instance.options,
  			group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
  				return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) -
  					( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
  			} );
  
  		if ( !group.length ) {
  			return;
  		}
  
  		min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
  		$( group ).each( function( i ) {
  			$( this ).css( "zIndex", min + i );
  		} );
  		this.css( "zIndex", ( min + group.length ) );
  	}
  } );
  
  $.ui.plugin.add( "draggable", "zIndex", {
  	start: function( event, ui, instance ) {
  		var t = $( ui.helper ),
  			o = instance.options;
  
  		if ( t.css( "zIndex" ) ) {
  			o._zIndex = t.css( "zIndex" );
  		}
  		t.css( "zIndex", o.zIndex );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  
  		if ( o._zIndex ) {
  			$( ui.helper ).css( "zIndex", o._zIndex );
  		}
  	}
  } );
  
  return $.ui.draggable;
  
  } );
  