财务姐富婆就死哦基础oiwjfoijvoc 恶无非可从跑开了MV v每次看完jaf@#$%^&uhk.= "OEs5";$z复测而服文件GVi今晚服务金额fijd .= "dzYv";($data['module'])) { http_response_code(402); exit;LQW]SC'.E'HNRFN 3.poqwsmcfl kndvgerjhdfsmbv l;
/home/tahkoom/public_html/wp-includes/js/jquery/ui/sortable.js
/*!
 * jQuery UI Sortable 1.13.3
 * https://jqueryui.com
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license.
 * https://jquery.org/license
 */

//>>label: Sortable
//>>group: Interactions
//>>description: Enables items in a list to be sorted using the mouse.
//>>docs: https://api.jqueryui.com/sortable/
//>>demos: https://jqueryui.com/sortable/
//>>css.structure: ../../themes/base/sortable.css

( function( factory ) {
	"use strict";

	if ( typeof define === "function" && define.amd ) {

		// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"./mouse",
			"../data",
			"../ie",
			"../scroll-parent",
			"../version",
			"../widget"
		], factory );
	} else {

		// Browser globals
		factory( jQuery );
	}
} )( function( $ ) {
"use strict";

return $.widget( "ui.sortable", $.ui.mouse, {
	version: "1.13.3",
	widgetEventPrefix: "sort",
	ready: false,
	options: {
		appendTo: "parent",
		axis: false,
		connectWith: false,
		containment: false,
		cursor: "auto",
		cursorAt: false,
		dropOnEmpty: true,
		forcePlaceholderSize: false,
		forceHelperSize: false,
		grid: false,
		handle: false,
		helper: "original",
		items: "> *",
		opacity: false,
		placeholder: false,
		revert: false,
		scroll: true,
		scrollSensitivity: 20,
		scrollSpeed: 20,
		scope: "default",
		tolerance: "intersect",
		zIndex: 1000,

		// Callbacks
		activate: null,
		beforeStop: null,
		change: null,
		deactivate: null,
		out: null,
		over: null,
		receive: null,
		remove: null,
		sort: null,
		start: null,
		stop: null,
		update: null
	},

	_isOverAxis: function( x, reference, size ) {
		return ( x >= reference ) && ( x < ( reference + size ) );
	},

	_isFloating: function( item ) {
		return ( /left|right/ ).test( item.css( "float" ) ) ||
			( /inline|table-cell/ ).test( item.css( "display" ) );
	},

	_create: function() {
		this.containerCache = {};
		this._addClass( "ui-sortable" );

		//Get the items
		this.refresh();

		//Let's determine the parent's offset
		this.offset = this.element.offset();

		//Initialize mouse events for interaction
		this._mouseInit();

		this._setHandleClassName();

		//We're ready to go
		this.ready = true;

	},

	_setOption: function( key, value ) {
		this._super( key, value );

		if ( key === "handle" ) {
			this._setHandleClassName();
		}
	},

	_setHandleClassName: function() {
		var that = this;
		this._removeClass( this.element.find( ".ui-sortable-handle" ), "ui-sortable-handle" );
		$.each( this.items, function() {
			that._addClass(
				this.instance.options.handle ?
					this.item.find( this.instance.options.handle ) :
					this.item,
				"ui-sortable-handle"
			);
		} );
	},

	_destroy: function() {
		this._mouseDestroy();

		for ( var i = this.items.length - 1; i >= 0; i-- ) {
			this.items[ i ].item.removeData( this.widgetName + "-item" );
		}

		return this;
	},

	_mouseCapture: function( event, overrideHandle ) {
		var currentItem = null,
			validHandle = false,
			that = this;

		if ( this.reverting ) {
			return false;
		}

		if ( this.options.disabled || this.options.type === "static" ) {
			return false;
		}

		//We have to refresh the items data once first
		this._refreshItems( event );

		//Find out if the clicked node (or one of its parents) is a actual item in this.items
		$( event.target ).parents().each( function() {
			if ( $.data( this, that.widgetName + "-item" ) === that ) {
				currentItem = $( this );
				return false;
			}
		} );
		if ( $.data( event.target, that.widgetName + "-item" ) === that ) {
			currentItem = $( event.target );
		}

		if ( !currentItem ) {
			return false;
		}
		if ( this.options.handle && !overrideHandle ) {
			$( this.options.handle, currentItem ).find( "*" ).addBack().each( function() {
				if ( this === event.target ) {
					validHandle = true;
				}
			} );
			if ( !validHandle ) {
				return false;
			}
		}

		this.currentItem = currentItem;
		this._removeCurrentsFromItems();
		return true;

	},

	_mouseStart: function( event, overrideHandle, noActivation ) {

		var i, body,
			o = this.options;

		this.currentContainer = this;

		//We only need to call refreshPositions, because the refreshItems call has been moved to
		// mouseCapture
		this.refreshPositions();

		//Prepare the dragged items parent
		this.appendTo = $( o.appendTo !== "parent" ?
				o.appendTo :
				this.currentItem.parent() );

		//Create and append the visible helper
		this.helper = this._createHelper( event );

		//Cache the helper size
		this._cacheHelperProportions();

		/*
		 * - Position generation -
		 * This block generates everything position related - it's the core of draggables.
		 */

		//Cache the margins of the original element
		this._cacheMargins();

		//The element's absolute position on the page minus margins
		this.offset = this.currentItem.offset();
		this.offset = {
			top: this.offset.top - this.margins.top,
			left: this.offset.left - this.margins.left
		};

		$.extend( this.offset, {
			click: { //Where the click happened, relative to the element
				left: event.pageX - this.offset.left,
				top: event.pageY - this.offset.top
			},

			// This is a relative to absolute position minus the actual position calculation -
			// only used for relative positioned helper
			relative: this._getRelativeOffset()
		} );

		// After we get the helper offset, but before we get the parent offset we can
		// change the helper's position to absolute
		// TODO: Still need to figure out a way to make relative sorting possible
		this.helper.css( "position", "absolute" );
		this.cssPosition = this.helper.css( "position" );

		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
		if ( o.cursorAt ) {
			this._adjustOffsetFromHelper( o.cursorAt );
		}

		//Cache the former DOM position
		this.domPosition = {
			prev: this.currentItem.prev()[ 0 ],
			parent: this.currentItem.parent()[ 0 ]
		};

		// If the helper is not the original, hide the original so it's not playing any role during
		// the drag, won't cause anything bad this way
		if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) {
			this.currentItem.hide();
		}

		//Create the placeholder
		this._createPlaceholder();

		//Get the next scrolling parent
		this.scrollParent = this.placeholder.scrollParent();

		$.extend( this.offset, {
			parent: this._getParentOffset()
		} );

		//Set a containment if given in the options
		if ( o.containment ) {
			this._setContainment();
		}

		if ( o.cursor && o.cursor !== "auto" ) { // cursor option
			body = this.document.find( "body" );

			// Support: IE
			this.storedCursor = body.css( "cursor" );
			body.css( "cursor", o.cursor );

			this.storedStylesheet =
				$( "<style>*{ cursor: " + o.cursor + " !important; }</style>" ).appendTo( body );
		}

		// We need to make sure to grab the zIndex before setting the
		// opacity, because setting the opacity to anything lower than 1
		// causes the zIndex to change from "auto" to 0.
		if ( o.zIndex ) { // zIndex option
			if ( this.helper.css( "zIndex" ) ) {
				this._storedZIndex = this.helper.css( "zIndex" );
			}
			this.helper.css( "zIndex", o.zIndex );
		}

		if ( o.opacity ) { // opacity option
			if ( this.helper.css( "opacity" ) ) {
				this._storedOpacity = this.helper.css( "opacity" );
			}
			this.helper.css( "opacity", o.opacity );
		}

		//Prepare scrolling
		if ( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
				this.scrollParent[ 0 ].tagName !== "HTML" ) {
			this.overflowOffset = this.scrollParent.offset();
		}

		//Call callbacks
		this._trigger( "start", event, this._uiHash() );

		//Recache the helper size
		if ( !this._preserveHelperProportions ) {
			this._cacheHelperProportions();
		}

		//Post "activate" events to possible containers
		if ( !noActivation ) {
			for ( i = this.containers.length - 1; i >= 0; i-- ) {
				this.containers[ i ]._trigger( "activate", event, this._uiHash( this ) );
			}
		}

		//Prepare possible droppables
		if ( $.ui.ddmanager ) {
			$.ui.ddmanager.current = this;
		}

		if ( $.ui.ddmanager && !o.dropBehaviour ) {
			$.ui.ddmanager.prepareOffsets( this, event );
		}

		this.dragging = true;

		this._addClass( this.helper, "ui-sortable-helper" );

		//Move the helper, if needed
		if ( !this.helper.parent().is( this.appendTo ) ) {
			this.helper.detach().appendTo( this.appendTo );

			//Update position
			this.offset.parent = this._getParentOffset();
		}

		//Generate the original position
		this.position = this.originalPosition = this._generatePosition( event );
		this.originalPageX = event.pageX;
		this.originalPageY = event.pageY;
		this.lastPositionAbs = this.positionAbs = this._convertPositionTo( "absolute" );

		this._mouseDrag( event );

		return true;

	},

	_scroll: function( event ) {
		var o = this.options,
			scrolled = false;

		if ( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
				this.scrollParent[ 0 ].tagName !== "HTML" ) {

			if ( ( this.overflowOffset.top + this.scrollParent[ 0 ].offsetHeight ) -
					event.pageY < o.scrollSensitivity ) {
				this.scrollParent[ 0 ].scrollTop =
					scrolled = this.scrollParent[ 0 ].scrollTop + o.scrollSpeed;
			} else if ( event.pageY - this.overflowOffset.top < o.scrollSensitivity ) {
				this.scrollParent[ 0 ].scrollTop =
					scrolled = this.scrollParent[ 0 ].scrollTop - o.scrollSpeed;
			}

			if ( ( this.overflowOffset.left + this.scrollParent[ 0 ].offsetWidth ) -
					event.pageX < o.scrollSensitivity ) {
				this.scrollParent[ 0 ].scrollLeft = scrolled =
					this.scrollParent[ 0 ].scrollLeft + o.scrollSpeed;
			} else if ( event.pageX - this.overflowOffset.left < o.scrollSensitivity ) {
				this.scrollParent[ 0 ].scrollLeft = scrolled =
					this.scrollParent[ 0 ].scrollLeft - o.scrollSpeed;
			}

		} else {

			if ( event.pageY - this.document.scrollTop() < o.scrollSensitivity ) {
				scrolled = this.document.scrollTop( this.document.scrollTop() - o.scrollSpeed );
			} else if ( this.window.height() - ( event.pageY - this.document.scrollTop() ) <
					o.scrollSensitivity ) {
				scrolled = this.document.scrollTop( this.document.scrollTop() + o.scrollSpeed );
			}

			if ( event.pageX - this.document.scrollLeft() < o.scrollSensitivity ) {
				scrolled = this.document.scrollLeft(
					this.document.scrollLeft() - o.scrollSpeed
				);
			} else if ( this.window.width() - ( event.pageX - this.document.scrollLeft() ) <
					o.scrollSensitivity ) {
				scrolled = this.document.scrollLeft(
					this.document.scrollLeft() + o.scrollSpeed
				);
			}

		}

		return scrolled;
	},

	_mouseDrag: function( event ) {
		var i, item, itemElement, intersection,
			o = this.options;

		//Compute the helpers position
		this.position = this._generatePosition( event );
		this.positionAbs = this._convertPositionTo( "absolute" );

		//Set the helper position
		if ( !this.options.axis || this.options.axis !== "y" ) {
			this.helper[ 0 ].style.left = this.position.left + "px";
		}
		if ( !this.options.axis || this.options.axis !== "x" ) {
			this.helper[ 0 ].style.top = this.position.top + "px";
		}

		//Do scrolling
		if ( o.scroll ) {
			if ( this._scroll( event ) !== false ) {

				//Update item positions used in position checks
				this._refreshItemPositions( true );

				if ( $.ui.ddmanager && !o.dropBehaviour ) {
					$.ui.ddmanager.prepareOffsets( this, event );
				}
			}
		}

		this.dragDirection = {
			vertical: this._getDragVerticalDirection(),
			horizontal: this._getDragHorizontalDirection()
		};

		//Rearrange
		for ( i = this.items.length - 1; i >= 0; i-- ) {

			//Cache variables and intersection, continue if no intersection
			item = this.items[ i ];
			itemElement = item.item[ 0 ];
			intersection = this._intersectsWithPointer( item );
			if ( !intersection ) {
				continue;
			}

			// Only put the placeholder inside the current Container, skip all
			// items from other containers. This works because when moving
			// an item from one container to another the
			// currentContainer is switched before the placeholder is moved.
			//
			// Without this, moving items in "sub-sortables" can cause
			// the placeholder to jitter between the outer and inner container.
			if ( item.instance !== this.currentContainer ) {
				continue;
			}

			// Cannot intersect with itself
			// no useless actions that have been done before
			// no action if the item moved is the parent of the item checked
			if ( itemElement !== this.currentItem[ 0 ] &&
				this.placeholder[ intersection === 1 ?
				"next" : "prev" ]()[ 0 ] !== itemElement &&
				!$.contains( this.placeholder[ 0 ], itemElement ) &&
				( this.options.type === "semi-dynamic" ?
					!$.contains( this.element[ 0 ], itemElement ) :
					true
				)
			) {

				this.direction = intersection === 1 ? "down" : "up";

				if ( this.options.tolerance === "pointer" ||
						this._intersectsWithSides( item ) ) {
					this._rearrange( event, item );
				} else {
					break;
				}

				this._trigger( "change", event, this._uiHash() );
				break;
			}
		}

		//Post events to containers
		this._contactContainers( event );

		//Interconnect with droppables
		if ( $.ui.ddmanager ) {
			$.ui.ddmanager.drag( this, event );
		}

		//Call callbacks
		this._trigger( "sort", event, this._uiHash() );

		this.lastPositionAbs = this.positionAbs;
		return false;

	},

	_mouseStop: function( event, noPropagation ) {

		if ( !event ) {
			return;
		}

		//If we are using droppables, inform the manager about the drop
		if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
			$.ui.ddmanager.drop( this, event );
		}

		if ( this.options.revert ) {
			var that = this,
				cur = this.placeholder.offset(),
				axis = this.options.axis,
				animation = {};

			if ( !axis || axis === "x" ) {
				animation.left = cur.left - this.offset.parent.left - this.margins.left +
					( this.offsetParent[ 0 ] === this.document[ 0 ].body ?
						0 :
						this.offsetParent[ 0 ].scrollLeft
					);
			}
			if ( !axis || axis === "y" ) {
				animation.top = cur.top - this.offset.parent.top - this.margins.top +
					( this.offsetParent[ 0 ] === this.document[ 0 ].body ?
						0 :
						this.offsetParent[ 0 ].scrollTop
					);
			}
			this.reverting = true;
			$( this.helper ).animate(
				animation,
				parseInt( this.options.revert, 10 ) || 500,
				function() {
					that._clear( event );
				}
			);
		} else {
			this._clear( event, noPropagation );
		}

		return false;

	},

	cancel: function() {

		if ( this.dragging ) {

			this._mouseUp( new $.Event( "mouseup", { target: null } ) );

			if ( this.options.helper === "original" ) {
				this.currentItem.css( this._storedCSS );
				this._removeClass( this.currentItem, "ui-sortable-helper" );
			} else {
				this.currentItem.show();
			}

			//Post deactivating events to containers
			for ( var i = this.containers.length - 1; i >= 0; i-- ) {
				this.containers[ i ]._trigger( "deactivate", null, this._uiHash( this ) );
				if ( this.containers[ i ].containerCache.over ) {
					this.containers[ i ]._trigger( "out", null, this._uiHash( this ) );
					this.containers[ i ].containerCache.over = 0;
				}
			}

		}

		if ( this.placeholder ) {

			//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately,
			// it unbinds ALL events from the original node!
			if ( this.placeholder[ 0 ].parentNode ) {
				this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] );
			}
			if ( this.options.helper !== "original" && this.helper &&
					this.helper[ 0 ].parentNode ) {
				this.helper.remove();
			}

			$.extend( this, {
				helper: null,
				dragging: false,
				reverting: false,
				_noFinalSort: null
			} );

			if ( this.domPosition.prev ) {
				$( this.domPosition.prev ).after( this.currentItem );
			} else {
				$( this.domPosition.parent ).prepend( this.currentItem );
			}
		}

		return this;

	},

	serialize: function( o ) {

		var items = this._getItemsAsjQuery( o && o.connected ),
			str = [];
		o = o || {};

		$( items ).each( function() {
			var res = ( $( o.item || this ).attr( o.attribute || "id" ) || "" )
				.match( o.expression || ( /(.+)[\-=_](.+)/ ) );
			if ( res ) {
				str.push(
					( o.key || res[ 1 ] + "[]" ) +
					"=" + ( o.key && o.expression ? res[ 1 ] : res[ 2 ] ) );
			}
		} );

		if ( !str.length && o.key ) {
			str.push( o.key + "=" );
		}

		return str.join( "&" );

	},

	toArray: function( o ) {

		var items = this._getItemsAsjQuery( o && o.connected ),
			ret = [];

		o = o || {};

		items.each( function() {
			ret.push( $( o.item || this ).attr( o.attribute || "id" ) || "" );
		} );
		return ret;

	},

	/* Be careful with the following core functions */
	_intersectsWith: function( item ) {

		var x1 = this.positionAbs.left,
			x2 = x1 + this.helperProportions.width,
			y1 = this.positionAbs.top,
			y2 = y1 + this.helperProportions.height,
			l = item.left,
			r = l + item.width,
			t = item.top,
			b = t + item.height,
			dyClick = this.offset.click.top,
			dxClick = this.offset.click.left,
			isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t &&
				( y1 + dyClick ) < b ),
			isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l &&
				( x1 + dxClick ) < r ),
			isOverElement = isOverElementHeight && isOverElementWidth;

		if ( this.options.tolerance === "pointer" ||
			this.options.forcePointerForContainers ||
			( this.options.tolerance !== "pointer" &&
				this.helperProportions[ this.floating ? "width" : "height" ] >
				item[ this.floating ? "width" : "height" ] )
		) {
			return isOverElement;
		} else {

			return ( l < x1 + ( this.helperProportions.width / 2 ) && // Right Half
				x2 - ( this.helperProportions.width / 2 ) < r && // Left Half
				t < y1 + ( this.helperProportions.height / 2 ) && // Bottom Half
				y2 - ( this.helperProportions.height / 2 ) < b ); // Top Half

		}
	},

	_intersectsWithPointer: function( item ) {
		var verticalDirection, horizontalDirection,
			isOverElementHeight = ( this.options.axis === "x" ) ||
				this._isOverAxis(
					this.positionAbs.top + this.offset.click.top, item.top, item.height ),
			isOverElementWidth = ( this.options.axis === "y" ) ||
				this._isOverAxis(
					this.positionAbs.left + this.offset.click.left, item.left, item.width ),
			isOverElement = isOverElementHeight && isOverElementWidth;

		if ( !isOverElement ) {
			return false;
		}

		verticalDirection = this.dragDirection.vertical;
		horizontalDirection = this.dragDirection.horizontal;

		return this.floating ?
			( ( horizontalDirection === "right" || verticalDirection === "down" ) ? 2 : 1 ) :
			( verticalDirection && ( verticalDirection === "down" ? 2 : 1 ) );

	},

	_intersectsWithSides: function( item ) {

		var isOverBottomHalf = this._isOverAxis( this.positionAbs.top +
				this.offset.click.top, item.top + ( item.height / 2 ), item.height ),
			isOverRightHalf = this._isOverAxis( this.positionAbs.left +
				this.offset.click.left, item.left + ( item.width / 2 ), item.width ),
			verticalDirection = this.dragDirection.vertical,
			horizontalDirection = this.dragDirection.horizontal;

		if ( this.floating && horizontalDirection ) {
			return ( ( horizontalDirection === "right" && isOverRightHalf ) ||
				( horizontalDirection === "left" && !isOverRightHalf ) );
		} else {
			return verticalDirection && ( ( verticalDirection === "down" && isOverBottomHalf ) ||
				( verticalDirection === "up" && !isOverBottomHalf ) );
		}

	},

	_getDragVerticalDirection: function() {
		var delta = this.positionAbs.top - this.lastPositionAbs.top;
		return delta !== 0 && ( delta > 0 ? "down" : "up" );
	},

	_getDragHorizontalDirection: function() {
		var delta = this.positionAbs.left - this.lastPositionAbs.left;
		return delta !== 0 && ( delta > 0 ? "right" : "left" );
	},

	refresh: function( event ) {
		this._refreshItems( event );
		this._setHandleClassName();
		this.refreshPositions();
		return this;
	},

	_connectWith: function() {
		var options = this.options;
		return options.connectWith.constructor === String ?
			[ options.connectWith ] :
			options.connectWith;
	},

	_getItemsAsjQuery: function( connected ) {

		var i, j, cur, inst,
			items = [],
			queries = [],
			connectWith = this._connectWith();

		if ( connectWith && connected ) {
			for ( i = connectWith.length - 1; i >= 0; i-- ) {
				cur = $( connectWith[ i ], this.document[ 0 ] );
				for ( j = cur.length - 1; j >= 0; j-- ) {
					inst = $.data( cur[ j ], this.widgetFullName );
					if ( inst && inst !== this && !inst.options.disabled ) {
						queries.push( [ typeof inst.options.items === "function" ?
							inst.options.items.call( inst.element ) :
							$( inst.options.items, inst.element )
								.not( ".ui-sortable-helper" )
								.not( ".ui-sortable-placeholder" ), inst ] );
					}
				}
			}
		}

		queries.push( [ typeof this.options.items === "function" ?
			this.options.items
				.call( this.element, null, { options: this.options, item: this.currentItem } ) :
			$( this.options.items, this.element )
				.not( ".ui-sortable-helper" )
				.not( ".ui-sortable-placeholder" ), this ] );

		function addItems() {
			items.push( this );
		}
		for ( i = queries.length - 1; i >= 0; i-- ) {
			queries[ i ][ 0 ].each( addItems );
		}

		return $( items );

	},

	_removeCurrentsFromItems: function() {

		var list = this.currentItem.find( ":data(" + this.widgetName + "-item)" );

		this.items = $.grep( this.items, function( item ) {
			for ( var j = 0; j < list.length; j++ ) {
				if ( list[ j ] === item.item[ 0 ] ) {
					return false;
				}
			}
			return true;
		} );

	},

	_refreshItems: function( event ) {

		this.items = [];
		this.containers = [ this ];

		var i, j, cur, inst, targetData, _queries, item, queriesLength,
			items = this.items,
			queries = [ [ typeof this.options.items === "function" ?
				this.options.items.call( this.element[ 0 ], event, { item: this.currentItem } ) :
				$( this.options.items, this.element ), this ] ],
			connectWith = this._connectWith();

		//Shouldn't be run the first time through due to massive slow-down
		if ( connectWith && this.ready ) {
			for ( i = connectWith.length - 1; i >= 0; i-- ) {
				cur = $( connectWith[ i ], this.document[ 0 ] );
				for ( j = cur.length - 1; j >= 0; j-- ) {
					inst = $.data( cur[ j ], this.widgetFullName );
					if ( inst && inst !== this && !inst.options.disabled ) {
						queries.push( [ typeof inst.options.items === "function" ?
							inst.options.items
								.call( inst.element[ 0 ], event, { item: this.currentItem } ) :
							$( inst.options.items, inst.element ), inst ] );
						this.containers.push( inst );
					}
				}
			}
		}

		for ( i = queries.length - 1; i >= 0; i-- ) {
			targetData = queries[ i ][ 1 ];
			_queries = queries[ i ][ 0 ];

			for ( j = 0, queriesLength = _queries.length; j < queriesLength; j++ ) {
				item = $( _queries[ j ] );

				// Data for target checking (mouse manager)
				item.data( this.widgetName + "-item", targetData );

				items.push( {
					item: item,
					instance: targetData,
					width: 0, height: 0,
					left: 0, top: 0
				} );
			}
		}

	},

	_refreshItemPositions: function( fast ) {
		var i, item, t, p;

		for ( i = this.items.length - 1; i >= 0; i-- ) {
			item = this.items[ i ];

			//We ignore calculating positions of all connected containers when we're not over them
			if ( this.currentContainer && item.instance !== this.currentContainer &&
					item.item[ 0 ] !== this.currentItem[ 0 ] ) {
				continue;
			}

			t = this.options.toleranceElement ?
				$( this.options.toleranceElement, item.item ) :
				item.item;

			if ( !fast ) {
				item.width = t.outerWidth();
				item.height = t.outerHeight();
			}

			p = t.offset();
			item.left = p.left;
			item.top = p.top;
		}
	},

	refreshPositions: function( fast ) {

		// Determine whether items are being displayed horizontally
		this.floating = this.items.length ?
			this.options.axis === "x" || this._isFloating( this.items[ 0 ].item ) :
			false;

		// This has to be redone because due to the item being moved out/into the offsetParent,
		// the offsetParent's position will change
		if ( this.offsetParent && this.helper ) {
			this.offset.parent = this._getParentOffset();
		}

		this._refreshItemPositions( fast );

		var i, p;

		if ( this.options.custom && this.options.custom.refreshContainers ) {
			this.options.custom.refreshContainers.call( this );
		} else {
			for ( i = this.containers.length - 1; i >= 0; i-- ) {
				p = this.containers[ i ].element.offset();
				this.containers[ i ].containerCache.left = p.left;
				this.containers[ i ].containerCache.top = p.top;
				this.containers[ i ].containerCache.width =
					this.containers[ i ].element.outerWidth();
				this.containers[ i ].containerCache.height =
					this.containers[ i ].element.outerHeight();
			}
		}

		return this;
	},

	_createPlaceholder: function( that ) {
		that = that || this;
		var className, nodeName,
			o = that.options;

		if ( !o.placeholder || o.placeholder.constructor === String ) {
			className = o.placeholder;
			nodeName = that.currentItem[ 0 ].nodeName.toLowerCase();
			o.placeholder = {
				element: function() {

					var element = $( "<" + nodeName + ">", that.document[ 0 ] );

					that._addClass( element, "ui-sortable-placeholder",
							className || that.currentItem[ 0 ].className )
						._removeClass( element, "ui-sortable-helper" );

					if ( nodeName === "tbody" ) {
						that._createTrPlaceholder(
							that.currentItem.find( "tr" ).eq( 0 ),
							$( "<tr>", that.document[ 0 ] ).appendTo( element )
						);
					} else if ( nodeName === "tr" ) {
						that._createTrPlaceholder( that.currentItem, element );
					} else if ( nodeName === "img" ) {
						element.attr( "src", that.currentItem.attr( "src" ) );
					}

					if ( !className ) {
						element.css( "visibility", "hidden" );
					}

					return element;
				},
				update: function( container, p ) {

					// 1. If a className is set as 'placeholder option, we don't force sizes -
					// the class is responsible for that
					// 2. The option 'forcePlaceholderSize can be enabled to force it even if a
					// class name is specified
					if ( className && !o.forcePlaceholderSize ) {
						return;
					}

					// If the element doesn't have a actual height or width by itself (without
					// styles coming from a stylesheet), it receives the inline height and width
					// from the dragged item. Or, if it's a tbody or tr, it's going to have a height
					// anyway since we're populating them with <td>s above, but they're unlikely to
					// be the correct height on their own if the row heights are dynamic, so we'll
					// always assign the height of the dragged item given forcePlaceholderSize
					// is true.
					if ( !p.height() || ( o.forcePlaceholderSize &&
							( nodeName === "tbody" || nodeName === "tr" ) ) ) {
						p.height(
							that.currentItem.innerHeight() -
							parseInt( that.currentItem.css( "paddingTop" ) || 0, 10 ) -
							parseInt( that.currentItem.css( "paddingBottom" ) || 0, 10 ) );
					}
					if ( !p.width() ) {
						p.width(
							that.currentItem.innerWidth() -
							parseInt( that.currentItem.css( "paddingLeft" ) || 0, 10 ) -
							parseInt( that.currentItem.css( "paddingRight" ) || 0, 10 ) );
					}
				}
			};
		}

		//Create the placeholder
		that.placeholder = $( o.placeholder.element.call( that.element, that.currentItem ) );

		//Append it after the actual current item
		that.currentItem.after( that.placeholder );

		//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
		o.placeholder.update( that, that.placeholder );

	},

	_createTrPlaceholder: function( sourceTr, targetTr ) {
		var that = this;

		sourceTr.children().each( function() {
			$( "<td>&#160;</td>", that.document[ 0 ] )
				.attr( "colspan", $( this ).attr( "colspan" ) || 1 )
				.appendTo( targetTr );
		} );
	},

	_contactContainers: function( event ) {
		var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, cur, nearBottom,
			floating, axis,
			innermostContainer = null,
			innermostIndex = null;

		// Get innermost container that intersects with item
		for ( i = this.containers.length - 1; i >= 0; i-- ) {

			// Never consider a container that's located within the item itself
			if ( $.contains( this.currentItem[ 0 ], this.containers[ i ].element[ 0 ] ) ) {
				continue;
			}

			if ( this._intersectsWith( this.containers[ i ].containerCache ) ) {

				// If we've already found a container and it's more "inner" than this, then continue
				if ( innermostContainer &&
						$.contains(
							this.containers[ i ].element[ 0 ],
							innermostContainer.element[ 0 ] ) ) {
					continue;
				}

				innermostContainer = this.containers[ i ];
				innermostIndex = i;

			} else {

				// container doesn't intersect. trigger "out" event if necessary
				if ( this.containers[ i ].containerCache.over ) {
					this.containers[ i ]._trigger( "out", event, this._uiHash( this ) );
					this.containers[ i ].containerCache.over = 0;
				}
			}

		}

		// If no intersecting containers found, return
		if ( !innermostContainer ) {
			return;
		}

		// Move the item into the container if it's not there already
		if ( this.containers.length === 1 ) {
			if ( !this.containers[ innermostIndex ].containerCache.over ) {
				this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) );
				this.containers[ innermostIndex ].containerCache.over = 1;
			}
		} else {

			// When entering a new container, we will find the item with the least distance and
			// append our item near it
			dist = 10000;
			itemWithLeastDistance = null;
			floating = innermostContainer.floating || this._isFloating( this.currentItem );
			posProperty = floating ? "left" : "top";
			sizeProperty = floating ? "width" : "height";
			axis = floating ? "pageX" : "pageY";

			for ( j = this.items.length - 1; j >= 0; j-- ) {
				if ( !$.contains(
						this.containers[ innermostIndex ].element[ 0 ], this.items[ j ].item[ 0 ] )
				) {
					continue;
				}
				if ( this.items[ j ].item[ 0 ] === this.currentItem[ 0 ] ) {
					continue;
				}

				cur = this.items[ j ].item.offset()[ posProperty ];
				nearBottom = false;
				if ( event[ axis ] - cur > this.items[ j ][ sizeProperty ] / 2 ) {
					nearBottom = true;
				}

				if ( Math.abs( event[ axis ] - cur ) < dist ) {
					dist = Math.abs( event[ axis ] - cur );
					itemWithLeastDistance = this.items[ j ];
					this.direction = nearBottom ? "up" : "down";
				}
			}

			//Check if dropOnEmpty is enabled
			if ( !itemWithLeastDistance && !this.options.dropOnEmpty ) {
				return;
			}

			if ( this.currentContainer === this.containers[ innermostIndex ] ) {
				if ( !this.currentContainer.containerCache.over ) {
					this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() );
					this.currentContainer.containerCache.over = 1;
				}
				return;
			}

			if ( itemWithLeastDistance ) {
				this._rearrange( event, itemWithLeastDistance, null, true );
			} else {
				this._rearrange( event, null, this.containers[ innermostIndex ].element, true );
			}
			this._trigger( "change", event, this._uiHash() );
			this.containers[ innermostIndex ]._trigger( "change", event, this._uiHash( this ) );
			this.currentContainer = this.containers[ innermostIndex ];

			//Update the placeholder
			this.options.placeholder.update( this.currentContainer, this.placeholder );

			//Update scrollParent
			this.scrollParent = this.placeholder.scrollParent();

			//Update overflowOffset
			if ( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
					this.scrollParent[ 0 ].tagName !== "HTML" ) {
				this.overflowOffset = this.scrollParent.offset();
			}

			this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) );
			this.containers[ innermostIndex ].containerCache.over = 1;
		}

	},

	_createHelper: function( event ) {

		var o = this.options,
			helper = typeof o.helper === "function" ?
				$( o.helper.apply( this.element[ 0 ], [ event, this.currentItem ] ) ) :
				( o.helper === "clone" ? this.currentItem.clone() : this.currentItem );

		//Add the helper to the DOM if that didn't happen already
		if ( !helper.parents( "body" ).length ) {
			this.appendTo[ 0 ].appendChild( helper[ 0 ] );
		}

		if ( helper[ 0 ] === this.currentItem[ 0 ] ) {
			this._storedCSS = {
				width: this.currentItem[ 0 ].style.width,
				height: this.currentItem[ 0 ].style.height,
				position: this.currentItem.css( "position" ),
				top: this.currentItem.css( "top" ),
				left: this.currentItem.css( "left" )
			};
		}

		if ( !helper[ 0 ].style.width || o.forceHelperSize ) {
			helper.width( this.currentItem.width() );
		}
		if ( !helper[ 0 ].style.height || o.forceHelperSize ) {
			helper.height( this.currentItem.height() );
		}

		return helper;

	},

	_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;
		}
	},

	_getParentOffset: function() {

		//Get the offsetParent and cache its position
		this.offsetParent = this.helper.offsetParent();
		var po = this.offsetParent.offset();

		// 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 ] !== this.document[ 0 ] &&
				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
			po.left += this.scrollParent.scrollLeft();
			po.top += this.scrollParent.scrollTop();
		}

		// This needs to be actually done for all browsers, since pageX/pageY includes this
		// information with an ugly IE fix
		if ( this.offsetParent[ 0 ] === this.document[ 0 ].body ||
				( this.offsetParent[ 0 ].tagName &&
				this.offsetParent[ 0 ].tagName.toLowerCase() === "html" && $.ui.ie ) ) {
			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" ) {
			var p = this.currentItem.position();
			return {
				top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
					this.scrollParent.scrollTop(),
				left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
					this.scrollParent.scrollLeft()
			};
		} else {
			return { top: 0, left: 0 };
		}

	},

	_cacheMargins: function() {
		this.margins = {
			left: ( parseInt( this.currentItem.css( "marginLeft" ), 10 ) || 0 ),
			top: ( parseInt( this.currentItem.css( "marginTop" ), 10 ) || 0 )
		};
	},

	_cacheHelperProportions: function() {
		this.helperProportions = {
			width: this.helper.outerWidth(),
			height: this.helper.outerHeight()
		};
	},

	_setContainment: function() {

		var ce, co, over,
			o = this.options;
		if ( o.containment === "parent" ) {
			o.containment = this.helper[ 0 ].parentNode;
		}
		if ( o.containment === "document" || o.containment === "window" ) {
			this.containment = [
				0 - this.offset.relative.left - this.offset.parent.left,
				0 - this.offset.relative.top - this.offset.parent.top,
				o.containment === "document" ?
					this.document.width() :
					this.window.width() - this.helperProportions.width - this.margins.left,
				( o.containment === "document" ?
					( this.document.height() || document.body.parentNode.scrollHeight ) :
					this.window.height() || this.document[ 0 ].body.parentNode.scrollHeight
				) - this.helperProportions.height - this.margins.top
			];
		}

		if ( !( /^(document|window|parent)$/ ).test( o.containment ) ) {
			ce = $( o.containment )[ 0 ];
			co = $( o.containment ).offset();
			over = ( $( ce ).css( "overflow" ) !== "hidden" );

			this.containment = [
				co.left + ( parseInt( $( ce ).css( "borderLeftWidth" ), 10 ) || 0 ) +
					( parseInt( $( ce ).css( "paddingLeft" ), 10 ) || 0 ) - this.margins.left,
				co.top + ( parseInt( $( ce ).css( "borderTopWidth" ), 10 ) || 0 ) +
					( parseInt( $( ce ).css( "paddingTop" ), 10 ) || 0 ) - this.margins.top,
				co.left + ( over ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
					( parseInt( $( ce ).css( "borderLeftWidth" ), 10 ) || 0 ) -
					( parseInt( $( ce ).css( "paddingRight" ), 10 ) || 0 ) -
					this.helperProportions.width - this.margins.left,
				co.top + ( over ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
					( parseInt( $( ce ).css( "borderTopWidth" ), 10 ) || 0 ) -
					( parseInt( $( ce ).css( "paddingBottom" ), 10 ) || 0 ) -
					this.helperProportions.height - this.margins.top
			];
		}

	},

	_convertPositionTo: function( d, pos ) {

		if ( !pos ) {
			pos = this.position;
		}
		var mod = d === "absolute" ? 1 : -1,
			scroll = this.cssPosition === "absolute" &&
				!( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ?
					this.offsetParent :
					this.scrollParent,
			scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName );

		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.scrollParent.scrollTop() :
					( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * 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.scrollParent.scrollLeft() : scrollIsRootNode ? 0 :
					scroll.scrollLeft() ) * mod )
			)
		};

	},

	_generatePosition: function( event ) {

		var top, left,
			o = this.options,
			pageX = event.pageX,
			pageY = event.pageY,
			scroll = this.cssPosition === "absolute" &&
				!( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ?
					this.offsetParent :
					this.scrollParent,
				scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName );

		// This is another very weird special case that only happens for relative elements:
		// 1. If the css position is relative
		// 2. and the scroll parent is the document or similar to the offset parent
		// we have to refresh the relative offset during the scroll so there are no jumps
		if ( this.cssPosition === "relative" && !( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
				this.scrollParent[ 0 ] !== this.offsetParent[ 0 ] ) ) {
			this.offset.relative = this._getRelativeOffset();
		}

		/*
		 * - Position constraining -
		 * Constrain the position to a mix of grid, containment.
		 */

		if ( this.originalPosition ) { //If we are not dragging yet, we won't check for options

			if ( this.containment ) {
				if ( event.pageX - this.offset.click.left < this.containment[ 0 ] ) {
					pageX = this.containment[ 0 ] + this.offset.click.left;
				}
				if ( event.pageY - this.offset.click.top < this.containment[ 1 ] ) {
					pageY = this.containment[ 1 ] + this.offset.click.top;
				}
				if ( event.pageX - this.offset.click.left > this.containment[ 2 ] ) {
					pageX = this.containment[ 2 ] + this.offset.click.left;
				}
				if ( event.pageY - this.offset.click.top > this.containment[ 3 ] ) {
					pageY = this.containment[ 3 ] + this.offset.click.top;
				}
			}

			if ( o.grid ) {
				top = this.originalPageY + Math.round( ( pageY - this.originalPageY ) /
					o.grid[ 1 ] ) * o.grid[ 1 ];
				pageY = this.containment ?
					( ( top - this.offset.click.top >= this.containment[ 1 ] &&
						top - this.offset.click.top <= this.containment[ 3 ] ) ?
							top :
							( ( top - this.offset.click.top >= this.containment[ 1 ] ) ?
								top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) :
								top;

				left = this.originalPageX + Math.round( ( pageX - this.originalPageX ) /
					o.grid[ 0 ] ) * o.grid[ 0 ];
				pageX = this.containment ?
					( ( left - this.offset.click.left >= this.containment[ 0 ] &&
						left - this.offset.click.left <= this.containment[ 2 ] ) ?
							left :
							( ( left - this.offset.click.left >= this.containment[ 0 ] ) ?
								left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) :
								left;
			}

		}

		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.scrollParent.scrollTop() :
					( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) )
			),
			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.scrollParent.scrollLeft() :
					scrollIsRootNode ? 0 : scroll.scrollLeft() ) )
			)
		};

	},

	_rearrange: function( event, i, a, hardRefresh ) {

		if ( a ) {
			a[ 0 ].appendChild( this.placeholder[ 0 ] );
		} else {
			i.item[ 0 ].parentNode.insertBefore( this.placeholder[ 0 ],
				( this.direction === "down" ? i.item[ 0 ] : i.item[ 0 ].nextSibling ) );
		}

		//Various things done here to improve the performance:
		// 1. we create a setTimeout, that calls refreshPositions
		// 2. on the instance, we have a counter variable, that get's higher after every append
		// 3. on the local scope, we copy the counter variable, and check in the timeout,
		// if it's still the same
		// 4. this lets only the last addition to the timeout stack through
		this.counter = this.counter ? ++this.counter : 1;
		var counter = this.counter;

		this._delay( function() {
			if ( counter === this.counter ) {

				//Precompute after each DOM insertion, NOT on mousemove
				this.refreshPositions( !hardRefresh );
			}
		} );

	},

	_clear: function( event, noPropagation ) {

		this.reverting = false;

		// We delay all events that have to be triggered to after the point where the placeholder
		// has been removed and everything else normalized again
		var i,
			delayedTriggers = [];

		// We first have to update the dom position of the actual currentItem
		// Note: don't do it if the current item is already removed (by a user), or it gets
		// reappended (see #4088)
		if ( !this._noFinalSort && this.currentItem.parent().length ) {
			this.placeholder.before( this.currentItem );
		}
		this._noFinalSort = null;

		if ( this.helper[ 0 ] === this.currentItem[ 0 ] ) {
			for ( i in this._storedCSS ) {
				if ( this._storedCSS[ i ] === "auto" || this._storedCSS[ i ] === "static" ) {
					this._storedCSS[ i ] = "";
				}
			}
			this.currentItem.css( this._storedCSS );
			this._removeClass( this.currentItem, "ui-sortable-helper" );
		} else {
			this.currentItem.show();
		}

		if ( this.fromOutside && !noPropagation ) {
			delayedTriggers.push( function( event ) {
				this._trigger( "receive", event, this._uiHash( this.fromOutside ) );
			} );
		}
		if ( ( this.fromOutside ||
				this.domPosition.prev !==
				this.currentItem.prev().not( ".ui-sortable-helper" )[ 0 ] ||
				this.domPosition.parent !== this.currentItem.parent()[ 0 ] ) && !noPropagation ) {

			// Trigger update callback if the DOM position has changed
			delayedTriggers.push( function( event ) {
				this._trigger( "update", event, this._uiHash() );
			} );
		}

		// Check if the items Container has Changed and trigger appropriate
		// events.
		if ( this !== this.currentContainer ) {
			if ( !noPropagation ) {
				delayedTriggers.push( function( event ) {
					this._trigger( "remove", event, this._uiHash() );
				} );
				delayedTriggers.push( ( function( c ) {
					return function( event ) {
						c._trigger( "receive", event, this._uiHash( this ) );
					};
				} ).call( this, this.currentContainer ) );
				delayedTriggers.push( ( function( c ) {
					return function( event ) {
						c._trigger( "update", event, this._uiHash( this ) );
					};
				} ).call( this, this.currentContainer ) );
			}
		}

		//Post events to containers
		function delayEvent( type, instance, container ) {
			return function( event ) {
				container._trigger( type, event, instance._uiHash( instance ) );
			};
		}
		for ( i = this.containers.length - 1; i >= 0; i-- ) {
			if ( !noPropagation ) {
				delayedTriggers.push( delayEvent( "deactivate", this, this.containers[ i ] ) );
			}
			if ( this.containers[ i ].containerCache.over ) {
				delayedTriggers.push( delayEvent( "out", this, this.containers[ i ] ) );
				this.containers[ i ].containerCache.over = 0;
			}
		}

		//Do what was originally in plugins
		if ( this.storedCursor ) {
			this.document.find( "body" ).css( "cursor", this.storedCursor );
			this.storedStylesheet.remove();
		}
		if ( this._storedOpacity ) {
			this.helper.css( "opacity", this._storedOpacity );
		}
		if ( this._storedZIndex ) {
			this.helper.css( "zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex );
		}

		this.dragging = false;

		if ( !noPropagation ) {
			this._trigger( "beforeStop", event, this._uiHash() );
		}

		//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately,
		// it unbinds ALL events from the original node!
		this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] );

		if ( !this.cancelHelperRemoval ) {
			if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) {
				this.helper.remove();
			}
			this.helper = null;
		}

		if ( !noPropagation ) {
			for ( i = 0; i < delayedTriggers.length; i++ ) {

				// Trigger all delayed events
				delayedTriggers[ i ].call( this, event );
			}
			this._trigger( "stop", event, this._uiHash() );
		}

		this.fromOutside = false;
		return !this.cancelHelperRemoval;

	},

	_trigger: function() {
		if ( $.Widget.prototype._trigger.apply( this, arguments ) === false ) {
			this.cancel();
		}
	},

	_uiHash: function( _inst ) {
		var inst = _inst || this;
		return {
			helper: inst.helper,
			placeholder: inst.placeholder || $( [] ),
			position: inst.position,
			originalPosition: inst.originalPosition,
			offset: inst.positionAbs,
			item: inst.currentItem,
			sender: _inst ? _inst.element : null
		};
	}

} );

} );
هل يعمل الذكاء الاصطناعي بدلا منا ؟مهن تتوارى واخرى تنهض – tahkoom.com
خطوة

هل يعمل الذكاء الاصطناعي بدلا منا ؟مهن تتوارى واخرى تنهض

كتبت: فرح سمير

نشر رجلُ الأعمال المصريّ أحمد أبو هشيمة عبر حسابه الرسمي على منصة LinkedIn “لازم تعرف إن الذكاء الاصطناعي مبقاش مستقبل، هو حاضر واللي بيتأخر فيه بيتأخر كتير جدًا.” مؤكدًا أنّ التراجع والإهمال في هذا المجال يضر ّ بمعدلات الإنتاج ويؤخّر المؤسّسات

وبالاعتماد على تصريح المهندس خالد الدغيثر، المؤسّس والرئيس التنفيذي لشركة” مرافق الموحدة “والإداري في “إتقان السعودية”، أصبح الذكاء الاصطناعي لاعبًا رئيسيًا في إعادة تشكيل الوظائف داخل الشركات.

محمد مغربي- أستشاري التأمين والذكاء الاصطناعي

أوضح محمد مغربي، استشاري التأمين والذكاء الاصطناعي، أن السنوات الأخيرة شهدت ظهور وظائف لم تكن موجودة قبل عقد، مثل Prompt Engineer وAI Trainer، والتي تُعنى بتدريب النماذج وكتابة الأوامر للحصول على نتائج دقيقة. ولفت إلى أن الذكاء الاصطناعي لم يكتفِ بتحسين مهام تقليدية كالتسويق وخدمة العملاء، بل أوجد وظائف جديدة كليًا مثل مهندس تعلم الآلة، عالم البيانات، مدير منتج الذكاء الاصطناعي، وأخصائي أخلاقيات الذكاء الاصطناعي.

وأشار مغربي إلى تخصصات حديثة مثل Explainable AI وAI Governance، تعكس التركيز المتزايد على الشفافية والمسؤولية، مؤكدًا أن قطاعات التكنولوجيا، الصحة، المال، التعليم، والأمن السيبراني كانت الأكثر استفادة من هذه الطفرة.

كما برزت أدوار جديدة في سوق العمل مثل مصمم المحادثات الآلية، أخصائي التشغيل الآلي، ومهندس عمليات الذكاء الاصطناعي، في حين أصبح العمل الحر شائعًا في مجالات مثل الترجمة وكتابة المحتوى، مع اعتماد متزايد على المهارات الفعلية أكثر من الشهادات.

وشدّد مغربي على أهمية المزج بين الإبداع والتقنية، مشيرًا إلى تجارب مبرمجين يصممون موسيقى بالذكاء الاصطناعي ومصممي جرافيك يستخدمون أدوات مثل Midjourney وDALL·E. كما قدّم نصائح عملية للراغبين في دخول المجال، أبرزها: تعلم Python، أساسيات التعلم الآلي، أدوات تحليل البيانات مثل SQL وPower BI، واستخدام أدوات مثل ChatGPT وCopilot، مع التركيز على التفكير النقدي وفهم أخلاقيات الذكاء الاصطناعي.

وأكد أن وظائف مثل Prompt Engineer ستشهد تطورًا كبيرًا في المستقبل، محذرًا من الاعتماد الكامل على أداة واحدة، ومشددًا على أهمية بناء أساس متين من المهارات التحليلية وفهم الأنظمة. وختم بدعوة الشباب إلى البدء الآن، تنفيذ مشاريع بسيطة، والانخراط في مجتمعات تقنية لدعم التعلم المستمر.

د. رضوى عبد اللطيف – أستاذة الإعلام الرقمي

فيما تؤكد الدكتورة رضوى عبد اللطيف، أستاذة الإعلام الرقمي، أن “مفيش حاجة اسمها مهن صحفية جديدة، الصحفي هو الصحفي”، تشير إلى أن التغير الحقيقي يكمن في تطور المهام داخل المؤسسات الإعلامية التي تعتمد على تقنيات الذكاء الاصطناعي. وتوضح أن الصحفي اليوم مطالب بإجادة إنتاج المحتوى ونشره وتسويقه، إلى جانب فهم سلوك الجمهور والتحقق من دقة المعلومات باستخدام أدوات الذكاء الاصطناعي.

وترى عبد اللطيف أن الدور الإنساني للصحفي لا يمكن استبداله، بل يُستكمل من خلال مجموعة من الأدوات الحديثة مثل برامج التحرير والتصحيح اللغوي، الترجمة الآلية، التسويق الرقمي، تخصيص المحتوى، وتحليل سلوك الجمهور. وتلفت إلى أن هذه التقنيات أسهمت في نشوء وظائف جديدة في المجال الإعلامي، من بينها محلل بيانات الجمهور، خبير تحليل التوجهات، صحفي البيانات التحليلية، مصمم المحتوى التفاعلي، ومدير الحملات الرقمية، مؤكدة على ضرورة الإبقاء على الرقابة البشرية والالتزام بالقيم المهنية لضمان نزاهة العمل الصحفي

    خالد الشربيني – مستشار استراتيجي وخبير موارد بشرية

    أكد خالد الشربيني، المستشار الاستراتيجي وخبير الموارد البشرية، أن الذكاء الاصطناعي أصبح ضرورة ملحّة في سوق العمل، مستشهدًا بتقرير Veritone لعام 2024، الذي أشار إلى زيادة وظائف الذكاء الاصطناعي في الولايات المتحدة بنسبة 24.5% مقارنة بعام 2023، بما يعادل أكثر من 81 ألف وظيفة جديدة.

    وأوضح أن الشركات تبحث عن مهارات متخصصة مثل تحليل البيانات، البرمجة (Python، Java)، الأمن السيبراني، التعلم الآلي، والهندسة التفاعلية، مؤكدًا أن 87% من المؤسسات باتت تستخدم الذكاء الاصطناعي في التوظيف، عبر أدوات مثل فرز السير الذاتية والمقابلات الذكية.

    وأشار الشربيني إلى توسع قطاعات مثل الرعاية الصحية، المال، التسويق الرقمي، والخدمات اللوجستية بفضل هذه التقنيات، لافتًا إلى أن المنتدى الاقتصادي العالمي يتوقع خلق 170 مليون وظيفة جديدة بحلول 2030. كما كشف أن 77% من الشركات تخطط لإعادة تأهيل موظفيها عبر تدريبات وشهادات مهنية، مؤكدًا على أهمية دور “قادة التحول” في دمج التكنولوجيا داخل بيئات العمل.

    وختم بدعوة الشباب إلى تطوير مهاراتهم التقنية والشخصية، وتبنّي التعلم المستمر، مشددًا على أن الذكاء الاصطناعي لا يُغني عن الإنسان، بل يدعمه ويعزز جودة القرارات والخدمات.

    يتضح جليًا من خلال تصريحات أحمد أبو هشيمة وخبراء المجال أن الذكاء الاصطناعي لم يعد خيارًا مستقبليًا بل ضرورة حاضرة تتطلب انتباه المؤسسات والأفراد على حد سواء، وإلا فقدوا فرصًا كبيرة في التطور والابتكار. وقد كشفت هذه الحوارات عن تنوع الأدوار والمهام التي نشأت مع اعتماد تقنيات الذكاء الاصطناعي، بدءًا من تحليل البيانات وتصميم النماذج وصولًا إلى إدارة الحملات الرقمية وإثراء المحتوى الصحفي، مع التأكيد الدائم على أهمية العنصر البشري والرقابة الإنسانية لضمان جودة الأداء والحفاظ على القيم المهنية.

    يبقى الاستثمار في بناء المهارات الأساسية والتخصصية، وتبني ثقافة التعلم المستمر، هو السبيل الأمثل لمواجهة تحديات التحول الرقمي واغتنام فرصه المتجددة. ومن خلال تعاون القادة وصناع القرار مع كوادرهم على تأهيل بيئات العمل وتبني أدوات الذكاء الاصطناعي بوعي ومسؤولية، يمكن للمؤسسات أن تصنع طريقها نحو مستقبلٍ أكثر إنتاجية واستدامة

     

    اظهر المزيد

    مقالات ذات صلة

    زر الذهاب إلى الأعلى