/*!
 * jQuery UI Draggable 1.13.2
 * 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


$.widget( "ui.draggable", $.ui.mouse, {
	version: "1.13.2",
	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 );
		}
	}
} );

var widgetsDraggable = $.ui.draggable;


/*!
 * jQuery UI Droppable 1.13.2
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Droppable
//>>group: Interactions
//>>description: Enables drop targets for draggable elements.
//>>docs: http://api.jqueryui.com/droppable/
//>>demos: http://jqueryui.com/droppable/


$.widget( "ui.droppable", {
	version: "1.13.2",
	widgetEventPrefix: "drop",
	options: {
		accept: "*",
		addClasses: true,
		greedy: false,
		scope: "default",
		tolerance: "intersect",

		// Callbacks
		activate: null,
		deactivate: null,
		drop: null,
		out: null,
		over: null
	},
	_create: function() {

		var proportions,
			o = this.options,
			accept = o.accept;

		this.isover = false;
		this.isout = true;

		this.accept = typeof accept === "function" ? accept : function( d ) {
			return d.is( accept );
		};

		this.proportions = function( /* valueToWrite */ ) {
			if ( arguments.length ) {

				// Store the droppable's proportions
				proportions = arguments[ 0 ];
			} else {

				// Retrieve or derive the droppable's proportions
				return proportions ?
					proportions :
					proportions = {
						width: this.element[ 0 ].offsetWidth,
						height: this.element[ 0 ].offsetHeight
					};
			}
		};

		this._addToManager( o.scope );

		if ( o.addClasses ) {
			this._addClass( "ui-droppable" );
		}

	},

	_addToManager: function( scope ) {

		// Add the reference and positions to the manager
		$.ui.ddmanager.droppables[ scope ] = $.ui.ddmanager.droppables[ scope ] || [];
		$.ui.ddmanager.droppables[ scope ].push( this );
	},

	_splice: function( drop ) {
		var i = 0;
		for ( ; i < drop.length; i++ ) {
			if ( drop[ i ] === this ) {
				drop.splice( i, 1 );
			}
		}
	},

	_destroy: function() {
		var drop = $.ui.ddmanager.droppables[ this.options.scope ];

		this._splice( drop );
	},

	_setOption: function( key, value ) {

		if ( key === "accept" ) {
			this.accept = typeof value === "function" ? value : function( d ) {
				return d.is( value );
			};
		} else if ( key === "scope" ) {
			var drop = $.ui.ddmanager.droppables[ this.options.scope ];

			this._splice( drop );
			this._addToManager( value );
		}

		this._super( key, value );
	},

	_activate: function( event ) {
		var draggable = $.ui.ddmanager.current;

		this._addActiveClass();
		if ( draggable ) {
			this._trigger( "activate", event, this.ui( draggable ) );
		}
	},

	_deactivate: function( event ) {
		var draggable = $.ui.ddmanager.current;

		this._removeActiveClass();
		if ( draggable ) {
			this._trigger( "deactivate", event, this.ui( draggable ) );
		}
	},

	_over: function( event ) {

		var draggable = $.ui.ddmanager.current;

		// Bail if draggable and droppable are same element
		if ( !draggable || ( draggable.currentItem ||
				draggable.element )[ 0 ] === this.element[ 0 ] ) {
			return;
		}

		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||
				draggable.element ) ) ) {
			this._addHoverClass();
			this._trigger( "over", event, this.ui( draggable ) );
		}

	},

	_out: function( event ) {

		var draggable = $.ui.ddmanager.current;

		// Bail if draggable and droppable are same element
		if ( !draggable || ( draggable.currentItem ||
				draggable.element )[ 0 ] === this.element[ 0 ] ) {
			return;
		}

		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||
				draggable.element ) ) ) {
			this._removeHoverClass();
			this._trigger( "out", event, this.ui( draggable ) );
		}

	},

	_drop: function( event, custom ) {

		var draggable = custom || $.ui.ddmanager.current,
			childrenIntersection = false;

		// Bail if draggable and droppable are same element
		if ( !draggable || ( draggable.currentItem ||
				draggable.element )[ 0 ] === this.element[ 0 ] ) {
			return false;
		}

		this.element
			.find( ":data(ui-droppable)" )
			.not( ".ui-draggable-dragging" )
			.each( function() {
				var inst = $( this ).droppable( "instance" );
				if (
					inst.options.greedy &&
					!inst.options.disabled &&
					inst.options.scope === draggable.options.scope &&
					inst.accept.call(
						inst.element[ 0 ], ( draggable.currentItem || draggable.element )
					) &&
					$.ui.intersect(
						draggable,
						$.extend( inst, { offset: inst.element.offset() } ),
						inst.options.tolerance, event
					)
				) {
					childrenIntersection = true;
					return false;
				}
			} );
		if ( childrenIntersection ) {
			return false;
		}

		if ( this.accept.call( this.element[ 0 ],
				( draggable.currentItem || draggable.element ) ) ) {
			this._removeActiveClass();
			this._removeHoverClass();

			this._trigger( "drop", event, this.ui( draggable ) );
			return this.element;
		}

		return false;

	},

	ui: function( c ) {
		return {
			draggable: ( c.currentItem || c.element ),
			helper: c.helper,
			position: c.position,
			offset: c.positionAbs
		};
	},

	// Extension points just to make backcompat sane and avoid duplicating logic
	// TODO: Remove in 1.14 along with call to it below
	_addHoverClass: function() {
		this._addClass( "ui-droppable-hover" );
	},

	_removeHoverClass: function() {
		this._removeClass( "ui-droppable-hover" );
	},

	_addActiveClass: function() {
		this._addClass( "ui-droppable-active" );
	},

	_removeActiveClass: function() {
		this._removeClass( "ui-droppable-active" );
	}
} );

$.ui.intersect = ( function() {
	function isOverAxis( x, reference, size ) {
		return ( x >= reference ) && ( x < ( reference + size ) );
	}

	return function( draggable, droppable, toleranceMode, event ) {

		if ( !droppable.offset ) {
			return false;
		}

		var x1 = ( draggable.positionAbs ||
				draggable.position.absolute ).left + draggable.margins.left,
			y1 = ( draggable.positionAbs ||
				draggable.position.absolute ).top + draggable.margins.top,
			x2 = x1 + draggable.helperProportions.width,
			y2 = y1 + draggable.helperProportions.height,
			l = droppable.offset.left,
			t = droppable.offset.top,
			r = l + droppable.proportions().width,
			b = t + droppable.proportions().height;

		switch ( toleranceMode ) {
		case "fit":
			return ( l <= x1 && x2 <= r && t <= y1 && y2 <= b );
		case "intersect":
			return ( l < x1 + ( draggable.helperProportions.width / 2 ) && // Right Half
				x2 - ( draggable.helperProportions.width / 2 ) < r && // Left Half
				t < y1 + ( draggable.helperProportions.height / 2 ) && // Bottom Half
				y2 - ( draggable.helperProportions.height / 2 ) < b ); // Top Half
		case "pointer":
			return isOverAxis( event.pageY, t, droppable.proportions().height ) &&
				isOverAxis( event.pageX, l, droppable.proportions().width );
		case "touch":
			return (
				( y1 >= t && y1 <= b ) || // Top edge touching
				( y2 >= t && y2 <= b ) || // Bottom edge touching
				( y1 < t && y2 > b ) // Surrounded vertically
			) && (
				( x1 >= l && x1 <= r ) || // Left edge touching
				( x2 >= l && x2 <= r ) || // Right edge touching
				( x1 < l && x2 > r ) // Surrounded horizontally
			);
		default:
			return false;
		}
	};
} )();

/*
	This manager tracks offsets of draggables and droppables
*/
$.ui.ddmanager = {
	current: null,
	droppables: { "default": [] },
	prepareOffsets: function( t, event ) {

		var i, j,
			m = $.ui.ddmanager.droppables[ t.options.scope ] || [],
			type = event ? event.type : null, // workaround for #2317
			list = ( t.currentItem || t.element ).find( ":data(ui-droppable)" ).addBack();

		droppablesLoop: for ( i = 0; i < m.length; i++ ) {

			// No disabled and non-accepted
			if ( m[ i ].options.disabled || ( t && !m[ i ].accept.call( m[ i ].element[ 0 ],
					( t.currentItem || t.element ) ) ) ) {
				continue;
			}

			// Filter out elements in the current dragged item
			for ( j = 0; j < list.length; j++ ) {
				if ( list[ j ] === m[ i ].element[ 0 ] ) {
					m[ i ].proportions().height = 0;
					continue droppablesLoop;
				}
			}

			m[ i ].visible = m[ i ].element.css( "display" ) !== "none";
			if ( !m[ i ].visible ) {
				continue;
			}

			// Activate the droppable if used directly from draggables
			if ( type === "mousedown" ) {
				m[ i ]._activate.call( m[ i ], event );
			}

			m[ i ].offset = m[ i ].element.offset();
			m[ i ].proportions( {
				width: m[ i ].element[ 0 ].offsetWidth,
				height: m[ i ].element[ 0 ].offsetHeight
			} );

		}

	},
	drop: function( draggable, event ) {

		var dropped = false;

		// Create a copy of the droppables in case the list changes during the drop (#9116)
		$.each( ( $.ui.ddmanager.droppables[ draggable.options.scope ] || [] ).slice(), function() {

			if ( !this.options ) {
				return;
			}
			if ( !this.options.disabled && this.visible &&
					$.ui.intersect( draggable, this, this.options.tolerance, event ) ) {
				dropped = this._drop.call( this, event ) || dropped;
			}

			if ( !this.options.disabled && this.visible && this.accept.call( this.element[ 0 ],
					( draggable.currentItem || draggable.element ) ) ) {
				this.isout = true;
				this.isover = false;
				this._deactivate.call( this, event );
			}

		} );
		return dropped;

	},
	dragStart: function( draggable, event ) {

		// Listen for scrolling so that if the dragging causes scrolling the position of the
		// droppables can be recalculated (see #5003)
		draggable.element.parentsUntil( "body" ).on( "scroll.droppable", function() {
			if ( !draggable.options.refreshPositions ) {
				$.ui.ddmanager.prepareOffsets( draggable, event );
			}
		} );
	},
	drag: function( draggable, event ) {

		// If you have a highly dynamic page, you might try this option. It renders positions
		// every time you move the mouse.
		if ( draggable.options.refreshPositions ) {
			$.ui.ddmanager.prepareOffsets( draggable, event );
		}

		// Run through all droppables and check their positions based on specific tolerance options
		$.each( $.ui.ddmanager.droppables[ draggable.options.scope ] || [], function() {

			if ( this.options.disabled || this.greedyChild || !this.visible ) {
				return;
			}

			var parentInstance, scope, parent,
				intersects = $.ui.intersect( draggable, this, this.options.tolerance, event ),
				c = !intersects && this.isover ?
					"isout" :
					( intersects && !this.isover ? "isover" : null );
			if ( !c ) {
				return;
			}

			if ( this.options.greedy ) {

				// find droppable parents with same scope
				scope = this.options.scope;
				parent = this.element.parents( ":data(ui-droppable)" ).filter( function() {
					return $( this ).droppable( "instance" ).options.scope === scope;
				} );

				if ( parent.length ) {
					parentInstance = $( parent[ 0 ] ).droppable( "instance" );
					parentInstance.greedyChild = ( c === "isover" );
				}
			}

			// We just moved into a greedy child
			if ( parentInstance && c === "isover" ) {
				parentInstance.isover = false;
				parentInstance.isout = true;
				parentInstance._out.call( parentInstance, event );
			}

			this[ c ] = true;
			this[ c === "isout" ? "isover" : "isout" ] = false;
			this[ c === "isover" ? "_over" : "_out" ].call( this, event );

			// We just moved out of a greedy child
			if ( parentInstance && c === "isout" ) {
				parentInstance.isout = false;
				parentInstance.isover = true;
				parentInstance._over.call( parentInstance, event );
			}
		} );

	},
	dragStop: function( draggable, event ) {
		draggable.element.parentsUntil( "body" ).off( "scroll.droppable" );

		// Call prepareOffsets one final time since IE does not fire return scroll events when
		// overflow was caused by drag (see #5003)
		if ( !draggable.options.refreshPositions ) {
			$.ui.ddmanager.prepareOffsets( draggable, event );
		}
	}
};

// DEPRECATED
// TODO: switch return back to widget declaration at top of file when this is removed
if ( $.uiBackCompat !== false ) {

	// Backcompat for activeClass and hoverClass options
	$.widget( "ui.droppable", $.ui.droppable, {
		options: {
			hoverClass: false,
			activeClass: false
		},
		_addActiveClass: function() {
			this._super();
			if ( this.options.activeClass ) {
				this.element.addClass( this.options.activeClass );
			}
		},
		_removeActiveClass: function() {
			this._super();
			if ( this.options.activeClass ) {
				this.element.removeClass( this.options.activeClass );
			}
		},
		_addHoverClass: function() {
			this._super();
			if ( this.options.hoverClass ) {
				this.element.addClass( this.options.hoverClass );
			}
		},
		_removeHoverClass: function() {
			this._super();
			if ( this.options.hoverClass ) {
				this.element.removeClass( this.options.hoverClass );
			}
		}
	} );
}

var widgetsDroppable = $.ui.droppable;


/*!
 * jQuery UI Resizable 1.13.2
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Resizable
//>>group: Interactions
//>>description: Enables resize functionality for any element.
//>>docs: http://api.jqueryui.com/resizable/
//>>demos: http://jqueryui.com/resizable/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/resizable.css
//>>css.theme: ../../themes/base/theme.css


$.widget( "ui.resizable", $.ui.mouse, {
	version: "1.13.2",
	widgetEventPrefix: "resize",
	options: {
		alsoResize: false,
		animate: false,
		animateDuration: "slow",
		animateEasing: "swing",
		aspectRatio: false,
		autoHide: false,
		classes: {
			"ui-resizable-se": "ui-icon ui-icon-gripsmall-diagonal-se"
		},
		containment: false,
		ghost: false,
		grid: false,
		handles: "e,s,se",
		helper: false,
		maxHeight: null,
		maxWidth: null,
		minHeight: 10,
		minWidth: 10,

		// See #7960
		zIndex: 90,

		// Callbacks
		resize: null,
		start: null,
		stop: null
	},

	_num: function( value ) {
		return parseFloat( value ) || 0;
	},

	_isNumber: function( value ) {
		return !isNaN( parseFloat( value ) );
	},

	_hasScroll: function( el, a ) {

		if ( $( el ).css( "overflow" ) === "hidden" ) {
			return false;
		}

		var scroll = ( a && a === "left" ) ? "scrollLeft" : "scrollTop",
			has = false;

		if ( el[ scroll ] > 0 ) {
			return true;
		}

		// TODO: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		try {
			el[ scroll ] = 1;
			has = ( el[ scroll ] > 0 );
			el[ scroll ] = 0;
		} catch ( e ) {

			// `el` might be a string, then setting `scroll` will throw
			// an error in strict mode; ignore it.
		}
		return has;
	},

	_create: function() {

		var margins,
			o = this.options,
			that = this;
		this._addClass( "ui-resizable" );

		$.extend( this, {
			_aspectRatio: !!( o.aspectRatio ),
			aspectRatio: o.aspectRatio,
			originalElement: this.element,
			_proportionallyResizeElements: [],
			_helper: o.helper || o.ghost || o.animate ? o.helper || "ui-resizable-helper" : null
		} );

		// Wrap the element if it cannot hold child nodes
		if ( this.element[ 0 ].nodeName.match( /^(canvas|textarea|input|select|button|img)$/i ) ) {

			this.element.wrap(
				$( "<div class='ui-wrapper'></div>" ).css( {
					overflow: "hidden",
					position: this.element.css( "position" ),
					width: this.element.outerWidth(),
					height: this.element.outerHeight(),
					top: this.element.css( "top" ),
					left: this.element.css( "left" )
				} )
			);

			this.element = this.element.parent().data(
				"ui-resizable", this.element.resizable( "instance" )
			);

			this.elementIsWrapper = true;

			margins = {
				marginTop: this.originalElement.css( "marginTop" ),
				marginRight: this.originalElement.css( "marginRight" ),
				marginBottom: this.originalElement.css( "marginBottom" ),
				marginLeft: this.originalElement.css( "marginLeft" )
			};

			this.element.css( margins );
			this.originalElement.css( "margin", 0 );

			// support: Safari
			// Prevent Safari textarea resize
			this.originalResizeStyle = this.originalElement.css( "resize" );
			this.originalElement.css( "resize", "none" );

			this._proportionallyResizeElements.push( this.originalElement.css( {
				position: "static",
				zoom: 1,
				display: "block"
			} ) );

			// Support: IE9
			// avoid IE jump (hard set the margin)
			this.originalElement.css( margins );

			this._proportionallyResize();
		}

		this._setupHandles();

		if ( o.autoHide ) {
			$( this.element )
				.on( "mouseenter", function() {
					if ( o.disabled ) {
						return;
					}
					that._removeClass( "ui-resizable-autohide" );
					that._handles.show();
				} )
				.on( "mouseleave", function() {
					if ( o.disabled ) {
						return;
					}
					if ( !that.resizing ) {
						that._addClass( "ui-resizable-autohide" );
						that._handles.hide();
					}
				} );
		}

		this._mouseInit();
	},

	_destroy: function() {

		this._mouseDestroy();
		this._addedHandles.remove();

		var wrapper,
			_destroy = function( exp ) {
				$( exp )
					.removeData( "resizable" )
					.removeData( "ui-resizable" )
					.off( ".resizable" );
			};

		// TODO: Unwrap at same DOM position
		if ( this.elementIsWrapper ) {
			_destroy( this.element );
			wrapper = this.element;
			this.originalElement.css( {
				position: wrapper.css( "position" ),
				width: wrapper.outerWidth(),
				height: wrapper.outerHeight(),
				top: wrapper.css( "top" ),
				left: wrapper.css( "left" )
			} ).insertAfter( wrapper );
			wrapper.remove();
		}

		this.originalElement.css( "resize", this.originalResizeStyle );
		_destroy( this.originalElement );

		return this;
	},

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

		switch ( key ) {
		case "handles":
			this._removeHandles();
			this._setupHandles();
			break;
		case "aspectRatio":
			this._aspectRatio = !!value;
			break;
		default:
			break;
		}
	},

	_setupHandles: function() {
		var o = this.options, handle, i, n, hname, axis, that = this;
		this.handles = o.handles ||
			( !$( ".ui-resizable-handle", this.element ).length ?
				"e,s,se" : {
					n: ".ui-resizable-n",
					e: ".ui-resizable-e",
					s: ".ui-resizable-s",
					w: ".ui-resizable-w",
					se: ".ui-resizable-se",
					sw: ".ui-resizable-sw",
					ne: ".ui-resizable-ne",
					nw: ".ui-resizable-nw"
				} );

		this._handles = $();
		this._addedHandles = $();
		if ( this.handles.constructor === String ) {

			if ( this.handles === "all" ) {
				this.handles = "n,e,s,w,se,sw,ne,nw";
			}

			n = this.handles.split( "," );
			this.handles = {};

			for ( i = 0; i < n.length; i++ ) {

				handle = String.prototype.trim.call( n[ i ] );
				hname = "ui-resizable-" + handle;
				axis = $( "<div>" );
				this._addClass( axis, "ui-resizable-handle " + hname );

				axis.css( { zIndex: o.zIndex } );

				this.handles[ handle ] = ".ui-resizable-" + handle;
				if ( !this.element.children( this.handles[ handle ] ).length ) {
					this.element.append( axis );
					this._addedHandles = this._addedHandles.add( axis );
				}
			}

		}

		this._renderAxis = function( target ) {

			var i, axis, padPos, padWrapper;

			target = target || this.element;

			for ( i in this.handles ) {

				if ( this.handles[ i ].constructor === String ) {
					this.handles[ i ] = this.element.children( this.handles[ i ] ).first().show();
				} else if ( this.handles[ i ].jquery || this.handles[ i ].nodeType ) {
					this.handles[ i ] = $( this.handles[ i ] );
					this._on( this.handles[ i ], { "mousedown": that._mouseDown } );
				}

				if ( this.elementIsWrapper &&
						this.originalElement[ 0 ]
							.nodeName
							.match( /^(textarea|input|select|button)$/i ) ) {
					axis = $( this.handles[ i ], this.element );

					padWrapper = /sw|ne|nw|se|n|s/.test( i ) ?
						axis.outerHeight() :
						axis.outerWidth();

					padPos = [ "padding",
						/ne|nw|n/.test( i ) ? "Top" :
						/se|sw|s/.test( i ) ? "Bottom" :
						/^e$/.test( i ) ? "Right" : "Left" ].join( "" );

					target.css( padPos, padWrapper );

					this._proportionallyResize();
				}

				this._handles = this._handles.add( this.handles[ i ] );
			}
		};

		// TODO: make renderAxis a prototype function
		this._renderAxis( this.element );

		this._handles = this._handles.add( this.element.find( ".ui-resizable-handle" ) );
		this._handles.disableSelection();

		this._handles.on( "mouseover", function() {
			if ( !that.resizing ) {
				if ( this.className ) {
					axis = this.className.match( /ui-resizable-(se|sw|ne|nw|n|e|s|w)/i );
				}
				that.axis = axis && axis[ 1 ] ? axis[ 1 ] : "se";
			}
		} );

		if ( o.autoHide ) {
			this._handles.hide();
			this._addClass( "ui-resizable-autohide" );
		}
	},

	_removeHandles: function() {
		this._addedHandles.remove();
	},

	_mouseCapture: function( event ) {
		var i, handle,
			capture = false;

		for ( i in this.handles ) {
			handle = $( this.handles[ i ] )[ 0 ];
			if ( handle === event.target || $.contains( handle, event.target ) ) {
				capture = true;
			}
		}

		return !this.options.disabled && capture;
	},

	_mouseStart: function( event ) {

		var curleft, curtop, cursor,
			o = this.options,
			el = this.element;

		this.resizing = true;

		this._renderProxy();

		curleft = this._num( this.helper.css( "left" ) );
		curtop = this._num( this.helper.css( "top" ) );

		if ( o.containment ) {
			curleft += $( o.containment ).scrollLeft() || 0;
			curtop += $( o.containment ).scrollTop() || 0;
		}

		this.offset = this.helper.offset();
		this.position = { left: curleft, top: curtop };

		this.size = this._helper ? {
				width: this.helper.width(),
				height: this.helper.height()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.originalSize = this._helper ? {
				width: el.outerWidth(),
				height: el.outerHeight()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.sizeDiff = {
			width: el.outerWidth() - el.width(),
			height: el.outerHeight() - el.height()
		};

		this.originalPosition = { left: curleft, top: curtop };
		this.originalMousePosition = { left: event.pageX, top: event.pageY };

		this.aspectRatio = ( typeof o.aspectRatio === "number" ) ?
			o.aspectRatio :
			( ( this.originalSize.width / this.originalSize.height ) || 1 );

		cursor = $( ".ui-resizable-" + this.axis ).css( "cursor" );
		$( "body" ).css( "cursor", cursor === "auto" ? this.axis + "-resize" : cursor );

		this._addClass( "ui-resizable-resizing" );
		this._propagate( "start", event );
		return true;
	},

	_mouseDrag: function( event ) {

		var data, props,
			smp = this.originalMousePosition,
			a = this.axis,
			dx = ( event.pageX - smp.left ) || 0,
			dy = ( event.pageY - smp.top ) || 0,
			trigger = this._change[ a ];

		this._updatePrevProperties();

		if ( !trigger ) {
			return false;
		}

		data = trigger.apply( this, [ event, dx, dy ] );

		this._updateVirtualBoundaries( event.shiftKey );
		if ( this._aspectRatio || event.shiftKey ) {
			data = this._updateRatio( data, event );
		}

		data = this._respectSize( data, event );

		this._updateCache( data );

		this._propagate( "resize", event );

		props = this._applyChanges();

		if ( !this._helper && this._proportionallyResizeElements.length ) {
			this._proportionallyResize();
		}

		if ( !$.isEmptyObject( props ) ) {
			this._updatePrevProperties();
			this._trigger( "resize", event, this.ui() );
			this._applyChanges();
		}

		return false;
	},

	_mouseStop: function( event ) {

		this.resizing = false;
		var pr, ista, soffseth, soffsetw, s, left, top,
			o = this.options, that = this;

		if ( this._helper ) {

			pr = this._proportionallyResizeElements;
			ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName );
			soffseth = ista && this._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height;
			soffsetw = ista ? 0 : that.sizeDiff.width;

			s = {
				width: ( that.helper.width()  - soffsetw ),
				height: ( that.helper.height() - soffseth )
			};
			left = ( parseFloat( that.element.css( "left" ) ) +
				( that.position.left - that.originalPosition.left ) ) || null;
			top = ( parseFloat( that.element.css( "top" ) ) +
				( that.position.top - that.originalPosition.top ) ) || null;

			if ( !o.animate ) {
				this.element.css( $.extend( s, { top: top, left: left } ) );
			}

			that.helper.height( that.size.height );
			that.helper.width( that.size.width );

			if ( this._helper && !o.animate ) {
				this._proportionallyResize();
			}
		}

		$( "body" ).css( "cursor", "auto" );

		this._removeClass( "ui-resizable-resizing" );

		this._propagate( "stop", event );

		if ( this._helper ) {
			this.helper.remove();
		}

		return false;

	},

	_updatePrevProperties: function() {
		this.prevPosition = {
			top: this.position.top,
			left: this.position.left
		};
		this.prevSize = {
			width: this.size.width,
			height: this.size.height
		};
	},

	_applyChanges: function() {
		var props = {};

		if ( this.position.top !== this.prevPosition.top ) {
			props.top = this.position.top + "px";
		}
		if ( this.position.left !== this.prevPosition.left ) {
			props.left = this.position.left + "px";
		}
		if ( this.size.width !== this.prevSize.width ) {
			props.width = this.size.width + "px";
		}
		if ( this.size.height !== this.prevSize.height ) {
			props.height = this.size.height + "px";
		}

		this.helper.css( props );

		return props;
	},

	_updateVirtualBoundaries: function( forceAspectRatio ) {
		var pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b,
			o = this.options;

		b = {
			minWidth: this._isNumber( o.minWidth ) ? o.minWidth : 0,
			maxWidth: this._isNumber( o.maxWidth ) ? o.maxWidth : Infinity,
			minHeight: this._isNumber( o.minHeight ) ? o.minHeight : 0,
			maxHeight: this._isNumber( o.maxHeight ) ? o.maxHeight : Infinity
		};

		if ( this._aspectRatio || forceAspectRatio ) {
			pMinWidth = b.minHeight * this.aspectRatio;
			pMinHeight = b.minWidth / this.aspectRatio;
			pMaxWidth = b.maxHeight * this.aspectRatio;
			pMaxHeight = b.maxWidth / this.aspectRatio;

			if ( pMinWidth > b.minWidth ) {
				b.minWidth = pMinWidth;
			}
			if ( pMinHeight > b.minHeight ) {
				b.minHeight = pMinHeight;
			}
			if ( pMaxWidth < b.maxWidth ) {
				b.maxWidth = pMaxWidth;
			}
			if ( pMaxHeight < b.maxHeight ) {
				b.maxHeight = pMaxHeight;
			}
		}
		this._vBoundaries = b;
	},

	_updateCache: function( data ) {
		this.offset = this.helper.offset();
		if ( this._isNumber( data.left ) ) {
			this.position.left = data.left;
		}
		if ( this._isNumber( data.top ) ) {
			this.position.top = data.top;
		}
		if ( this._isNumber( data.height ) ) {
			this.size.height = data.height;
		}
		if ( this._isNumber( data.width ) ) {
			this.size.width = data.width;
		}
	},

	_updateRatio: function( data ) {

		var cpos = this.position,
			csize = this.size,
			a = this.axis;

		if ( this._isNumber( data.height ) ) {
			data.width = ( data.height * this.aspectRatio );
		} else if ( this._isNumber( data.width ) ) {
			data.height = ( data.width / this.aspectRatio );
		}

		if ( a === "sw" ) {
			data.left = cpos.left + ( csize.width - data.width );
			data.top = null;
		}
		if ( a === "nw" ) {
			data.top = cpos.top + ( csize.height - data.height );
			data.left = cpos.left + ( csize.width - data.width );
		}

		return data;
	},

	_respectSize: function( data ) {

		var o = this._vBoundaries,
			a = this.axis,
			ismaxw = this._isNumber( data.width ) && o.maxWidth && ( o.maxWidth < data.width ),
			ismaxh = this._isNumber( data.height ) && o.maxHeight && ( o.maxHeight < data.height ),
			isminw = this._isNumber( data.width ) && o.minWidth && ( o.minWidth > data.width ),
			isminh = this._isNumber( data.height ) && o.minHeight && ( o.minHeight > data.height ),
			dw = this.originalPosition.left + this.originalSize.width,
			dh = this.originalPosition.top + this.originalSize.height,
			cw = /sw|nw|w/.test( a ), ch = /nw|ne|n/.test( a );
		if ( isminw ) {
			data.width = o.minWidth;
		}
		if ( isminh ) {
			data.height = o.minHeight;
		}
		if ( ismaxw ) {
			data.width = o.maxWidth;
		}
		if ( ismaxh ) {
			data.height = o.maxHeight;
		}

		if ( isminw && cw ) {
			data.left = dw - o.minWidth;
		}
		if ( ismaxw && cw ) {
			data.left = dw - o.maxWidth;
		}
		if ( isminh && ch ) {
			data.top = dh - o.minHeight;
		}
		if ( ismaxh && ch ) {
			data.top = dh - o.maxHeight;
		}

		// Fixing jump error on top/left - bug #2330
		if ( !data.width && !data.height && !data.left && data.top ) {
			data.top = null;
		} else if ( !data.width && !data.height && !data.top && data.left ) {
			data.left = null;
		}

		return data;
	},

	_getPaddingPlusBorderDimensions: function( element ) {
		var i = 0,
			widths = [],
			borders = [
				element.css( "borderTopWidth" ),
				element.css( "borderRightWidth" ),
				element.css( "borderBottomWidth" ),
				element.css( "borderLeftWidth" )
			],
			paddings = [
				element.css( "paddingTop" ),
				element.css( "paddingRight" ),
				element.css( "paddingBottom" ),
				element.css( "paddingLeft" )
			];

		for ( ; i < 4; i++ ) {
			widths[ i ] = ( parseFloat( borders[ i ] ) || 0 );
			widths[ i ] += ( parseFloat( paddings[ i ] ) || 0 );
		}

		return {
			height: widths[ 0 ] + widths[ 2 ],
			width: widths[ 1 ] + widths[ 3 ]
		};
	},

	_proportionallyResize: function() {

		if ( !this._proportionallyResizeElements.length ) {
			return;
		}

		var prel,
			i = 0,
			element = this.helper || this.element;

		for ( ; i < this._proportionallyResizeElements.length; i++ ) {

			prel = this._proportionallyResizeElements[ i ];

			// TODO: Seems like a bug to cache this.outerDimensions
			// considering that we are in a loop.
			if ( !this.outerDimensions ) {
				this.outerDimensions = this._getPaddingPlusBorderDimensions( prel );
			}

			prel.css( {
				height: ( element.height() - this.outerDimensions.height ) || 0,
				width: ( element.width() - this.outerDimensions.width ) || 0
			} );

		}

	},

	_renderProxy: function() {

		var el = this.element, o = this.options;
		this.elementOffset = el.offset();

		if ( this._helper ) {

			this.helper = this.helper || $( "<div></div>" ).css( { overflow: "hidden" } );

			this._addClass( this.helper, this._helper );
			this.helper.css( {
				width: this.element.outerWidth(),
				height: this.element.outerHeight(),
				position: "absolute",
				left: this.elementOffset.left + "px",
				top: this.elementOffset.top + "px",
				zIndex: ++o.zIndex //TODO: Don't modify option
			} );

			this.helper
				.appendTo( "body" )
				.disableSelection();

		} else {
			this.helper = this.element;
		}

	},

	_change: {
		e: function( event, dx ) {
			return { width: this.originalSize.width + dx };
		},
		w: function( event, dx ) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { left: sp.left + dx, width: cs.width - dx };
		},
		n: function( event, dx, dy ) {
			var cs = this.originalSize, sp = this.originalPosition;
			return { top: sp.top + dy, height: cs.height - dy };
		},
		s: function( event, dx, dy ) {
			return { height: this.originalSize.height + dy };
		},
		se: function( event, dx, dy ) {
			return $.extend( this._change.s.apply( this, arguments ),
				this._change.e.apply( this, [ event, dx, dy ] ) );
		},
		sw: function( event, dx, dy ) {
			return $.extend( this._change.s.apply( this, arguments ),
				this._change.w.apply( this, [ event, dx, dy ] ) );
		},
		ne: function( event, dx, dy ) {
			return $.extend( this._change.n.apply( this, arguments ),
				this._change.e.apply( this, [ event, dx, dy ] ) );
		},
		nw: function( event, dx, dy ) {
			return $.extend( this._change.n.apply( this, arguments ),
				this._change.w.apply( this, [ event, dx, dy ] ) );
		}
	},

	_propagate: function( n, event ) {
		$.ui.plugin.call( this, n, [ event, this.ui() ] );
		if ( n !== "resize" ) {
			this._trigger( n, event, this.ui() );
		}
	},

	plugins: {},

	ui: function() {
		return {
			originalElement: this.originalElement,
			element: this.element,
			helper: this.helper,
			position: this.position,
			size: this.size,
			originalSize: this.originalSize,
			originalPosition: this.originalPosition
		};
	}

} );

/*
 * Resizable Extensions
 */

$.ui.plugin.add( "resizable", "animate", {

	stop: function( event ) {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			pr = that._proportionallyResizeElements,
			ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName ),
			soffseth = ista && that._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height,
			soffsetw = ista ? 0 : that.sizeDiff.width,
			style = {
				width: ( that.size.width - soffsetw ),
				height: ( that.size.height - soffseth )
			},
			left = ( parseFloat( that.element.css( "left" ) ) +
				( that.position.left - that.originalPosition.left ) ) || null,
			top = ( parseFloat( that.element.css( "top" ) ) +
				( that.position.top - that.originalPosition.top ) ) || null;

		that.element.animate(
			$.extend( style, top && left ? { top: top, left: left } : {} ), {
				duration: o.animateDuration,
				easing: o.animateEasing,
				step: function() {

					var data = {
						width: parseFloat( that.element.css( "width" ) ),
						height: parseFloat( that.element.css( "height" ) ),
						top: parseFloat( that.element.css( "top" ) ),
						left: parseFloat( that.element.css( "left" ) )
					};

					if ( pr && pr.length ) {
						$( pr[ 0 ] ).css( { width: data.width, height: data.height } );
					}

					// Propagating resize, and updating values for each animation step
					that._updateCache( data );
					that._propagate( "resize", event );

				}
			}
		);
	}

} );

$.ui.plugin.add( "resizable", "containment", {

	start: function() {
		var element, p, co, ch, cw, width, height,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			el = that.element,
			oc = o.containment,
			ce = ( oc instanceof $ ) ?
				oc.get( 0 ) :
				( /parent/.test( oc ) ) ? el.parent().get( 0 ) : oc;

		if ( !ce ) {
			return;
		}

		that.containerElement = $( ce );

		if ( /document/.test( oc ) || oc === document ) {
			that.containerOffset = {
				left: 0,
				top: 0
			};
			that.containerPosition = {
				left: 0,
				top: 0
			};

			that.parentData = {
				element: $( document ),
				left: 0,
				top: 0,
				width: $( document ).width(),
				height: $( document ).height() || document.body.parentNode.scrollHeight
			};
		} else {
			element = $( ce );
			p = [];
			$( [ "Top", "Right", "Left", "Bottom" ] ).each( function( i, name ) {
				p[ i ] = that._num( element.css( "padding" + name ) );
			} );

			that.containerOffset = element.offset();
			that.containerPosition = element.position();
			that.containerSize = {
				height: ( element.innerHeight() - p[ 3 ] ),
				width: ( element.innerWidth() - p[ 1 ] )
			};

			co = that.containerOffset;
			ch = that.containerSize.height;
			cw = that.containerSize.width;
			width = ( that._hasScroll( ce, "left" ) ? ce.scrollWidth : cw );
			height = ( that._hasScroll( ce ) ? ce.scrollHeight : ch );

			that.parentData = {
				element: ce,
				left: co.left,
				top: co.top,
				width: width,
				height: height
			};
		}
	},

	resize: function( event ) {
		var woset, hoset, isParent, isOffsetRelative,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			co = that.containerOffset,
			cp = that.position,
			pRatio = that._aspectRatio || event.shiftKey,
			cop = {
				top: 0,
				left: 0
			},
			ce = that.containerElement,
			continueResize = true;

		if ( ce[ 0 ] !== document && ( /static/ ).test( ce.css( "position" ) ) ) {
			cop = co;
		}

		if ( cp.left < ( that._helper ? co.left : 0 ) ) {
			that.size.width = that.size.width +
				( that._helper ?
					( that.position.left - co.left ) :
					( that.position.left - cop.left ) );

			if ( pRatio ) {
				that.size.height = that.size.width / that.aspectRatio;
				continueResize = false;
			}
			that.position.left = o.helper ? co.left : 0;
		}

		if ( cp.top < ( that._helper ? co.top : 0 ) ) {
			that.size.height = that.size.height +
				( that._helper ?
					( that.position.top - co.top ) :
					that.position.top );

			if ( pRatio ) {
				that.size.width = that.size.height * that.aspectRatio;
				continueResize = false;
			}
			that.position.top = that._helper ? co.top : 0;
		}

		isParent = that.containerElement.get( 0 ) === that.element.parent().get( 0 );
		isOffsetRelative = /relative|absolute/.test( that.containerElement.css( "position" ) );

		if ( isParent && isOffsetRelative ) {
			that.offset.left = that.parentData.left + that.position.left;
			that.offset.top = that.parentData.top + that.position.top;
		} else {
			that.offset.left = that.element.offset().left;
			that.offset.top = that.element.offset().top;
		}

		woset = Math.abs( that.sizeDiff.width +
			( that._helper ?
				that.offset.left - cop.left :
				( that.offset.left - co.left ) ) );

		hoset = Math.abs( that.sizeDiff.height +
			( that._helper ?
				that.offset.top - cop.top :
				( that.offset.top - co.top ) ) );

		if ( woset + that.size.width >= that.parentData.width ) {
			that.size.width = that.parentData.width - woset;
			if ( pRatio ) {
				that.size.height = that.size.width / that.aspectRatio;
				continueResize = false;
			}
		}

		if ( hoset + that.size.height >= that.parentData.height ) {
			that.size.height = that.parentData.height - hoset;
			if ( pRatio ) {
				that.size.width = that.size.height * that.aspectRatio;
				continueResize = false;
			}
		}

		if ( !continueResize ) {
			that.position.left = that.prevPosition.left;
			that.position.top = that.prevPosition.top;
			that.size.width = that.prevSize.width;
			that.size.height = that.prevSize.height;
		}
	},

	stop: function() {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			co = that.containerOffset,
			cop = that.containerPosition,
			ce = that.containerElement,
			helper = $( that.helper ),
			ho = helper.offset(),
			w = helper.outerWidth() - that.sizeDiff.width,
			h = helper.outerHeight() - that.sizeDiff.height;

		if ( that._helper && !o.animate && ( /relative/ ).test( ce.css( "position" ) ) ) {
			$( this ).css( {
				left: ho.left - cop.left - co.left,
				width: w,
				height: h
			} );
		}

		if ( that._helper && !o.animate && ( /static/ ).test( ce.css( "position" ) ) ) {
			$( this ).css( {
				left: ho.left - cop.left - co.left,
				width: w,
				height: h
			} );
		}
	}
} );

$.ui.plugin.add( "resizable", "alsoResize", {

	start: function() {
		var that = $( this ).resizable( "instance" ),
			o = that.options;

		$( o.alsoResize ).each( function() {
			var el = $( this );
			el.data( "ui-resizable-alsoresize", {
				width: parseFloat( el.width() ), height: parseFloat( el.height() ),
				left: parseFloat( el.css( "left" ) ), top: parseFloat( el.css( "top" ) )
			} );
		} );
	},

	resize: function( event, ui ) {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			os = that.originalSize,
			op = that.originalPosition,
			delta = {
				height: ( that.size.height - os.height ) || 0,
				width: ( that.size.width - os.width ) || 0,
				top: ( that.position.top - op.top ) || 0,
				left: ( that.position.left - op.left ) || 0
			};

			$( o.alsoResize ).each( function() {
				var el = $( this ), start = $( this ).data( "ui-resizable-alsoresize" ), style = {},
					css = el.parents( ui.originalElement[ 0 ] ).length ?
							[ "width", "height" ] :
							[ "width", "height", "top", "left" ];

				$.each( css, function( i, prop ) {
					var sum = ( start[ prop ] || 0 ) + ( delta[ prop ] || 0 );
					if ( sum && sum >= 0 ) {
						style[ prop ] = sum || null;
					}
				} );

				el.css( style );
			} );
	},

	stop: function() {
		$( this ).removeData( "ui-resizable-alsoresize" );
	}
} );

$.ui.plugin.add( "resizable", "ghost", {

	start: function() {

		var that = $( this ).resizable( "instance" ), cs = that.size;

		that.ghost = that.originalElement.clone();
		that.ghost.css( {
			opacity: 0.25,
			display: "block",
			position: "relative",
			height: cs.height,
			width: cs.width,
			margin: 0,
			left: 0,
			top: 0
		} );

		that._addClass( that.ghost, "ui-resizable-ghost" );

		// DEPRECATED
		// TODO: remove after 1.12
		if ( $.uiBackCompat !== false && typeof that.options.ghost === "string" ) {

			// Ghost option
			that.ghost.addClass( this.options.ghost );
		}

		that.ghost.appendTo( that.helper );

	},

	resize: function() {
		var that = $( this ).resizable( "instance" );
		if ( that.ghost ) {
			that.ghost.css( {
				position: "relative",
				height: that.size.height,
				width: that.size.width
			} );
		}
	},

	stop: function() {
		var that = $( this ).resizable( "instance" );
		if ( that.ghost && that.helper ) {
			that.helper.get( 0 ).removeChild( that.ghost.get( 0 ) );
		}
	}

} );

$.ui.plugin.add( "resizable", "grid", {

	resize: function() {
		var outerDimensions,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			cs = that.size,
			os = that.originalSize,
			op = that.originalPosition,
			a = that.axis,
			grid = typeof o.grid === "number" ? [ o.grid, o.grid ] : o.grid,
			gridX = ( grid[ 0 ] || 1 ),
			gridY = ( grid[ 1 ] || 1 ),
			ox = Math.round( ( cs.width - os.width ) / gridX ) * gridX,
			oy = Math.round( ( cs.height - os.height ) / gridY ) * gridY,
			newWidth = os.width + ox,
			newHeight = os.height + oy,
			isMaxWidth = o.maxWidth && ( o.maxWidth < newWidth ),
			isMaxHeight = o.maxHeight && ( o.maxHeight < newHeight ),
			isMinWidth = o.minWidth && ( o.minWidth > newWidth ),
			isMinHeight = o.minHeight && ( o.minHeight > newHeight );

		o.grid = grid;

		if ( isMinWidth ) {
			newWidth += gridX;
		}
		if ( isMinHeight ) {
			newHeight += gridY;
		}
		if ( isMaxWidth ) {
			newWidth -= gridX;
		}
		if ( isMaxHeight ) {
			newHeight -= gridY;
		}

		if ( /^(se|s|e)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
		} else if ( /^(ne)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.top = op.top - oy;
		} else if ( /^(sw)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.left = op.left - ox;
		} else {
			if ( newHeight - gridY <= 0 || newWidth - gridX <= 0 ) {
				outerDimensions = that._getPaddingPlusBorderDimensions( this );
			}

			if ( newHeight - gridY > 0 ) {
				that.size.height = newHeight;
				that.position.top = op.top - oy;
			} else {
				newHeight = gridY - outerDimensions.height;
				that.size.height = newHeight;
				that.position.top = op.top + os.height - newHeight;
			}
			if ( newWidth - gridX > 0 ) {
				that.size.width = newWidth;
				that.position.left = op.left - ox;
			} else {
				newWidth = gridX - outerDimensions.width;
				that.size.width = newWidth;
				that.position.left = op.left + os.width - newWidth;
			}
		}
	}

} );

var widgetsResizable = $.ui.resizable;


/*!
 * jQuery UI Selectable 1.13.2
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Selectable
//>>group: Interactions
//>>description: Allows groups of elements to be selected with the mouse.
//>>docs: http://api.jqueryui.com/selectable/
//>>demos: http://jqueryui.com/selectable/
//>>css.structure: ../../themes/base/selectable.css


var widgetsSelectable = $.widget( "ui.selectable", $.ui.mouse, {
	version: "1.13.2",
	options: {
		appendTo: "body",
		autoRefresh: true,
		distance: 0,
		filter: "*",
		tolerance: "touch",

		// Callbacks
		selected: null,
		selecting: null,
		start: null,
		stop: null,
		unselected: null,
		unselecting: null
	},
	_create: function() {
		var that = this;

		this._addClass( "ui-selectable" );

		this.dragged = false;

		// Cache selectee children based on filter
		this.refresh = function() {
			that.elementPos = $( that.element[ 0 ] ).offset();
			that.selectees = $( that.options.filter, that.element[ 0 ] );
			that._addClass( that.selectees, "ui-selectee" );
			that.selectees.each( function() {
				var $this = $( this ),
					selecteeOffset = $this.offset(),
					pos = {
						left: selecteeOffset.left - that.elementPos.left,
						top: selecteeOffset.top - that.elementPos.top
					};
				$.data( this, "selectable-item", {
					element: this,
					$element: $this,
					left: pos.left,
					top: pos.top,
					right: pos.left + $this.outerWidth(),
					bottom: pos.top + $this.outerHeight(),
					startselected: false,
					selected: $this.hasClass( "ui-selected" ),
					selecting: $this.hasClass( "ui-selecting" ),
					unselecting: $this.hasClass( "ui-unselecting" )
				} );
			} );
		};
		this.refresh();

		this._mouseInit();

		this.helper = $( "<div>" );
		this._addClass( this.helper, "ui-selectable-helper" );
	},

	_destroy: function() {
		this.selectees.removeData( "selectable-item" );
		this._mouseDestroy();
	},

	_mouseStart: function( event ) {
		var that = this,
			options = this.options;

		this.opos = [ event.pageX, event.pageY ];
		this.elementPos = $( this.element[ 0 ] ).offset();

		if ( this.options.disabled ) {
			return;
		}

		this.selectees = $( options.filter, this.element[ 0 ] );

		this._trigger( "start", event );

		$( options.appendTo ).append( this.helper );

		// position helper (lasso)
		this.helper.css( {
			"left": event.pageX,
			"top": event.pageY,
			"width": 0,
			"height": 0
		} );

		if ( options.autoRefresh ) {
			this.refresh();
		}

		this.selectees.filter( ".ui-selected" ).each( function() {
			var selectee = $.data( this, "selectable-item" );
			selectee.startselected = true;
			if ( !event.metaKey && !event.ctrlKey ) {
				that._removeClass( selectee.$element, "ui-selected" );
				selectee.selected = false;
				that._addClass( selectee.$element, "ui-unselecting" );
				selectee.unselecting = true;

				// selectable UNSELECTING callback
				that._trigger( "unselecting", event, {
					unselecting: selectee.element
				} );
			}
		} );

		$( event.target ).parents().addBack().each( function() {
			var doSelect,
				selectee = $.data( this, "selectable-item" );
			if ( selectee ) {
				doSelect = ( !event.metaKey && !event.ctrlKey ) ||
					!selectee.$element.hasClass( "ui-selected" );
				that._removeClass( selectee.$element, doSelect ? "ui-unselecting" : "ui-selected" )
					._addClass( selectee.$element, doSelect ? "ui-selecting" : "ui-unselecting" );
				selectee.unselecting = !doSelect;
				selectee.selecting = doSelect;
				selectee.selected = doSelect;

				// selectable (UN)SELECTING callback
				if ( doSelect ) {
					that._trigger( "selecting", event, {
						selecting: selectee.element
					} );
				} else {
					that._trigger( "unselecting", event, {
						unselecting: selectee.element
					} );
				}
				return false;
			}
		} );

	},

	_mouseDrag: function( event ) {

		this.dragged = true;

		if ( this.options.disabled ) {
			return;
		}

		var tmp,
			that = this,
			options = this.options,
			x1 = this.opos[ 0 ],
			y1 = this.opos[ 1 ],
			x2 = event.pageX,
			y2 = event.pageY;

		if ( x1 > x2 ) {
			tmp = x2; x2 = x1; x1 = tmp;
		}
		if ( y1 > y2 ) {
			tmp = y2; y2 = y1; y1 = tmp;
		}
		this.helper.css( { left: x1, top: y1, width: x2 - x1, height: y2 - y1 } );

		this.selectees.each( function() {
			var selectee = $.data( this, "selectable-item" ),
				hit = false,
				offset = {};

			//prevent helper from being selected if appendTo: selectable
			if ( !selectee || selectee.element === that.element[ 0 ] ) {
				return;
			}

			offset.left   = selectee.left   + that.elementPos.left;
			offset.right  = selectee.right  + that.elementPos.left;
			offset.top    = selectee.top    + that.elementPos.top;
			offset.bottom = selectee.bottom + that.elementPos.top;

			if ( options.tolerance === "touch" ) {
				hit = ( !( offset.left > x2 || offset.right < x1 || offset.top > y2 ||
                    offset.bottom < y1 ) );
			} else if ( options.tolerance === "fit" ) {
				hit = ( offset.left > x1 && offset.right < x2 && offset.top > y1 &&
                    offset.bottom < y2 );
			}

			if ( hit ) {

				// SELECT
				if ( selectee.selected ) {
					that._removeClass( selectee.$element, "ui-selected" );
					selectee.selected = false;
				}
				if ( selectee.unselecting ) {
					that._removeClass( selectee.$element, "ui-unselecting" );
					selectee.unselecting = false;
				}
				if ( !selectee.selecting ) {
					that._addClass( selectee.$element, "ui-selecting" );
					selectee.selecting = true;

					// selectable SELECTING callback
					that._trigger( "selecting", event, {
						selecting: selectee.element
					} );
				}
			} else {

				// UNSELECT
				if ( selectee.selecting ) {
					if ( ( event.metaKey || event.ctrlKey ) && selectee.startselected ) {
						that._removeClass( selectee.$element, "ui-selecting" );
						selectee.selecting = false;
						that._addClass( selectee.$element, "ui-selected" );
						selectee.selected = true;
					} else {
						that._removeClass( selectee.$element, "ui-selecting" );
						selectee.selecting = false;
						if ( selectee.startselected ) {
							that._addClass( selectee.$element, "ui-unselecting" );
							selectee.unselecting = true;
						}

						// selectable UNSELECTING callback
						that._trigger( "unselecting", event, {
							unselecting: selectee.element
						} );
					}
				}
				if ( selectee.selected ) {
					if ( !event.metaKey && !event.ctrlKey && !selectee.startselected ) {
						that._removeClass( selectee.$element, "ui-selected" );
						selectee.selected = false;

						that._addClass( selectee.$element, "ui-unselecting" );
						selectee.unselecting = true;

						// selectable UNSELECTING callback
						that._trigger( "unselecting", event, {
							unselecting: selectee.element
						} );
					}
				}
			}
		} );

		return false;
	},

	_mouseStop: function( event ) {
		var that = this;

		this.dragged = false;

		$( ".ui-unselecting", this.element[ 0 ] ).each( function() {
			var selectee = $.data( this, "selectable-item" );
			that._removeClass( selectee.$element, "ui-unselecting" );
			selectee.unselecting = false;
			selectee.startselected = false;
			that._trigger( "unselected", event, {
				unselected: selectee.element
			} );
		} );
		$( ".ui-selecting", this.element[ 0 ] ).each( function() {
			var selectee = $.data( this, "selectable-item" );
			that._removeClass( selectee.$element, "ui-selecting" )
				._addClass( selectee.$element, "ui-selected" );
			selectee.selecting = false;
			selectee.selected = true;
			selectee.startselected = true;
			that._trigger( "selected", event, {
				selected: selectee.element
			} );
		} );
		this._trigger( "stop", event );

		this.helper.remove();

		return false;
	}

} );