text: /*!
   * jQuery UI Droppable @VERSION
   * 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/
  
  ( function( factory ) {
  	"use strict";
  
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./draggable",
  			"./mouse",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } )( function( $ ) {
  "use strict";
  
  $.widget( "ui.droppable", {
  	version: "@VERSION",
  	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 );
  			}
  		}
  	} );
  }
  
  return $.ui.droppable;
  
  } );
  