jquery-ui.js revision 3233:b5d08bc0d224
1/*! jQuery UI - v1.11.4 - 2015-05-20
2* http://jqueryui.com
3* Includes: core.js, widget.js, position.js, autocomplete.js, menu.js
4* Copyright 2015 jQuery Foundation and other contributors; Licensed MIT */
5
6(function( factory ) {
7	if ( typeof define === "function" && define.amd ) {
8
9		// AMD. Register as an anonymous module.
10		define([ "jquery" ], factory );
11	} else {
12
13		// Browser globals
14		factory( jQuery );
15	}
16}(function( $ ) {
17/*!
18 * jQuery UI Core 1.11.4
19 * http://jqueryui.com
20 *
21 * Copyright jQuery Foundation and other contributors
22 * Released under the MIT license.
23 * http://jquery.org/license
24 *
25 * http://api.jqueryui.com/category/ui-core/
26 */
27
28
29// $.ui might exist from components with no dependencies, e.g., $.ui.position
30$.ui = $.ui || {};
31
32$.extend( $.ui, {
33	version: "1.11.4",
34
35	keyCode: {
36		BACKSPACE: 8,
37		COMMA: 188,
38		DELETE: 46,
39		DOWN: 40,
40		END: 35,
41		ENTER: 13,
42		ESCAPE: 27,
43		HOME: 36,
44		LEFT: 37,
45		PAGE_DOWN: 34,
46		PAGE_UP: 33,
47		PERIOD: 190,
48		RIGHT: 39,
49		SPACE: 32,
50		TAB: 9,
51		UP: 38
52	}
53});
54
55// plugins
56$.fn.extend({
57	scrollParent: function( includeHidden ) {
58		var position = this.css( "position" ),
59			excludeStaticParent = position === "absolute",
60			overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
61			scrollParent = this.parents().filter( function() {
62				var parent = $( this );
63				if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
64					return false;
65				}
66				return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) + parent.css( "overflow-x" ) );
67			}).eq( 0 );
68
69		return position === "fixed" || !scrollParent.length ? $( this[ 0 ].ownerDocument || document ) : scrollParent;
70	},
71
72	uniqueId: (function() {
73		var uuid = 0;
74
75		return function() {
76			return this.each(function() {
77				if ( !this.id ) {
78					this.id = "ui-id-" + ( ++uuid );
79				}
80			});
81		};
82	})(),
83
84	removeUniqueId: function() {
85		return this.each(function() {
86			if ( /^ui-id-\d+$/.test( this.id ) ) {
87				$( this ).removeAttr( "id" );
88			}
89		});
90	}
91});
92
93// selectors
94function focusable( element, isTabIndexNotNaN ) {
95	var map, mapName, img,
96		nodeName = element.nodeName.toLowerCase();
97	if ( "area" === nodeName ) {
98		map = element.parentNode;
99		mapName = map.name;
100		if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
101			return false;
102		}
103		img = $( "img[usemap='#" + mapName + "']" )[ 0 ];
104		return !!img && visible( img );
105	}
106	return ( /^(input|select|textarea|button|object)$/.test( nodeName ) ?
107		!element.disabled :
108		"a" === nodeName ?
109			element.href || isTabIndexNotNaN :
110			isTabIndexNotNaN) &&
111		// the element and all of its ancestors must be visible
112		visible( element );
113}
114
115function visible( element ) {
116	return $.expr.filters.visible( element ) &&
117		!$( element ).parents().addBack().filter(function() {
118			return $.css( this, "visibility" ) === "hidden";
119		}).length;
120}
121
122$.extend( $.expr[ ":" ], {
123	data: $.expr.createPseudo ?
124		$.expr.createPseudo(function( dataName ) {
125			return function( elem ) {
126				return !!$.data( elem, dataName );
127			};
128		}) :
129		// support: jQuery <1.8
130		function( elem, i, match ) {
131			return !!$.data( elem, match[ 3 ] );
132		},
133
134	focusable: function( element ) {
135		return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
136	},
137
138	tabbable: function( element ) {
139		var tabIndex = $.attr( element, "tabindex" ),
140			isTabIndexNaN = isNaN( tabIndex );
141		return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN );
142	}
143});
144
145// support: jQuery <1.8
146if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
147	$.each( [ "Width", "Height" ], function( i, name ) {
148		var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
149			type = name.toLowerCase(),
150			orig = {
151				innerWidth: $.fn.innerWidth,
152				innerHeight: $.fn.innerHeight,
153				outerWidth: $.fn.outerWidth,
154				outerHeight: $.fn.outerHeight
155			};
156
157		function reduce( elem, size, border, margin ) {
158			$.each( side, function() {
159				size -= parseFloat( $.css( elem, "padding" + this ) ) || 0;
160				if ( border ) {
161					size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
162				}
163				if ( margin ) {
164					size -= parseFloat( $.css( elem, "margin" + this ) ) || 0;
165				}
166			});
167			return size;
168		}
169
170		$.fn[ "inner" + name ] = function( size ) {
171			if ( size === undefined ) {
172				return orig[ "inner" + name ].call( this );
173			}
174
175			return this.each(function() {
176				$( this ).css( type, reduce( this, size ) + "px" );
177			});
178		};
179
180		$.fn[ "outer" + name] = function( size, margin ) {
181			if ( typeof size !== "number" ) {
182				return orig[ "outer" + name ].call( this, size );
183			}
184
185			return this.each(function() {
186				$( this).css( type, reduce( this, size, true, margin ) + "px" );
187			});
188		};
189	});
190}
191
192// support: jQuery <1.8
193if ( !$.fn.addBack ) {
194	$.fn.addBack = function( selector ) {
195		return this.add( selector == null ?
196			this.prevObject : this.prevObject.filter( selector )
197		);
198	};
199}
200
201// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
202if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
203	$.fn.removeData = (function( removeData ) {
204		return function( key ) {
205			if ( arguments.length ) {
206				return removeData.call( this, $.camelCase( key ) );
207			} else {
208				return removeData.call( this );
209			}
210		};
211	})( $.fn.removeData );
212}
213
214// deprecated
215$.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );
216
217$.fn.extend({
218	focus: (function( orig ) {
219		return function( delay, fn ) {
220			return typeof delay === "number" ?
221				this.each(function() {
222					var elem = this;
223					setTimeout(function() {
224						$( elem ).focus();
225						if ( fn ) {
226							fn.call( elem );
227						}
228					}, delay );
229				}) :
230				orig.apply( this, arguments );
231		};
232	})( $.fn.focus ),
233
234	disableSelection: (function() {
235		var eventType = "onselectstart" in document.createElement( "div" ) ?
236			"selectstart" :
237			"mousedown";
238
239		return function() {
240			return this.bind( eventType + ".ui-disableSelection", function( event ) {
241				event.preventDefault();
242			});
243		};
244	})(),
245
246	enableSelection: function() {
247		return this.unbind( ".ui-disableSelection" );
248	},
249
250	zIndex: function( zIndex ) {
251		if ( zIndex !== undefined ) {
252			return this.css( "zIndex", zIndex );
253		}
254
255		if ( this.length ) {
256			var elem = $( this[ 0 ] ), position, value;
257			while ( elem.length && elem[ 0 ] !== document ) {
258				// Ignore z-index if position is set to a value where z-index is ignored by the browser
259				// This makes behavior of this function consistent across browsers
260				// WebKit always returns auto if the element is positioned
261				position = elem.css( "position" );
262				if ( position === "absolute" || position === "relative" || position === "fixed" ) {
263					// IE returns 0 when zIndex is not specified
264					// other browsers return a string
265					// we ignore the case of nested elements with an explicit value of 0
266					// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
267					value = parseInt( elem.css( "zIndex" ), 10 );
268					if ( !isNaN( value ) && value !== 0 ) {
269						return value;
270					}
271				}
272				elem = elem.parent();
273			}
274		}
275
276		return 0;
277	}
278});
279
280// $.ui.plugin is deprecated. Use $.widget() extensions instead.
281$.ui.plugin = {
282	add: function( module, option, set ) {
283		var i,
284			proto = $.ui[ module ].prototype;
285		for ( i in set ) {
286			proto.plugins[ i ] = proto.plugins[ i ] || [];
287			proto.plugins[ i ].push( [ option, set[ i ] ] );
288		}
289	},
290	call: function( instance, name, args, allowDisconnected ) {
291		var i,
292			set = instance.plugins[ name ];
293
294		if ( !set ) {
295			return;
296		}
297
298		if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
299			return;
300		}
301
302		for ( i = 0; i < set.length; i++ ) {
303			if ( instance.options[ set[ i ][ 0 ] ] ) {
304				set[ i ][ 1 ].apply( instance.element, args );
305			}
306		}
307	}
308};
309
310
311/*!
312 * jQuery UI Widget 1.11.4
313 * http://jqueryui.com
314 *
315 * Copyright jQuery Foundation and other contributors
316 * Released under the MIT license.
317 * http://jquery.org/license
318 *
319 * http://api.jqueryui.com/jQuery.widget/
320 */
321
322
323var widget_uuid = 0,
324	widget_slice = Array.prototype.slice;
325
326$.cleanData = (function( orig ) {
327	return function( elems ) {
328		var events, elem, i;
329		for ( i = 0; (elem = elems[i]) != null; i++ ) {
330			try {
331
332				// Only trigger remove when necessary to save time
333				events = $._data( elem, "events" );
334				if ( events && events.remove ) {
335					$( elem ).triggerHandler( "remove" );
336				}
337
338			// http://bugs.jquery.com/ticket/8235
339			} catch ( e ) {}
340		}
341		orig( elems );
342	};
343})( $.cleanData );
344
345$.widget = function( name, base, prototype ) {
346	var fullName, existingConstructor, constructor, basePrototype,
347		// proxiedPrototype allows the provided prototype to remain unmodified
348		// so that it can be used as a mixin for multiple widgets (#8876)
349		proxiedPrototype = {},
350		namespace = name.split( "." )[ 0 ];
351
352	name = name.split( "." )[ 1 ];
353	fullName = namespace + "-" + name;
354
355	if ( !prototype ) {
356		prototype = base;
357		base = $.Widget;
358	}
359
360	// create selector for plugin
361	$.expr[ ":" ][ fullName.toLowerCase() ] = function( elem ) {
362		return !!$.data( elem, fullName );
363	};
364
365	$[ namespace ] = $[ namespace ] || {};
366	existingConstructor = $[ namespace ][ name ];
367	constructor = $[ namespace ][ name ] = function( options, element ) {
368		// allow instantiation without "new" keyword
369		if ( !this._createWidget ) {
370			return new constructor( options, element );
371		}
372
373		// allow instantiation without initializing for simple inheritance
374		// must use "new" keyword (the code above always passes args)
375		if ( arguments.length ) {
376			this._createWidget( options, element );
377		}
378	};
379	// extend with the existing constructor to carry over any static properties
380	$.extend( constructor, existingConstructor, {
381		version: prototype.version,
382		// copy the object used to create the prototype in case we need to
383		// redefine the widget later
384		_proto: $.extend( {}, prototype ),
385		// track widgets that inherit from this widget in case this widget is
386		// redefined after a widget inherits from it
387		_childConstructors: []
388	});
389
390	basePrototype = new base();
391	// we need to make the options hash a property directly on the new instance
392	// otherwise we'll modify the options hash on the prototype that we're
393	// inheriting from
394	basePrototype.options = $.widget.extend( {}, basePrototype.options );
395	$.each( prototype, function( prop, value ) {
396		if ( !$.isFunction( value ) ) {
397			proxiedPrototype[ prop ] = value;
398			return;
399		}
400		proxiedPrototype[ prop ] = (function() {
401			var _super = function() {
402					return base.prototype[ prop ].apply( this, arguments );
403				},
404				_superApply = function( args ) {
405					return base.prototype[ prop ].apply( this, args );
406				};
407			return function() {
408				var __super = this._super,
409					__superApply = this._superApply,
410					returnValue;
411
412				this._super = _super;
413				this._superApply = _superApply;
414
415				returnValue = value.apply( this, arguments );
416
417				this._super = __super;
418				this._superApply = __superApply;
419
420				return returnValue;
421			};
422		})();
423	});
424	constructor.prototype = $.widget.extend( basePrototype, {
425		// TODO: remove support for widgetEventPrefix
426		// always use the name + a colon as the prefix, e.g., draggable:start
427		// don't prefix for widgets that aren't DOM-based
428		widgetEventPrefix: existingConstructor ? (basePrototype.widgetEventPrefix || name) : name
429	}, proxiedPrototype, {
430		constructor: constructor,
431		namespace: namespace,
432		widgetName: name,
433		widgetFullName: fullName
434	});
435
436	// If this widget is being redefined then we need to find all widgets that
437	// are inheriting from it and redefine all of them so that they inherit from
438	// the new version of this widget. We're essentially trying to replace one
439	// level in the prototype chain.
440	if ( existingConstructor ) {
441		$.each( existingConstructor._childConstructors, function( i, child ) {
442			var childPrototype = child.prototype;
443
444			// redefine the child widget using the same prototype that was
445			// originally used, but inherit from the new version of the base
446			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
447		});
448		// remove the list of existing child constructors from the old constructor
449		// so the old child constructors can be garbage collected
450		delete existingConstructor._childConstructors;
451	} else {
452		base._childConstructors.push( constructor );
453	}
454
455	$.widget.bridge( name, constructor );
456
457	return constructor;
458};
459
460$.widget.extend = function( target ) {
461	var input = widget_slice.call( arguments, 1 ),
462		inputIndex = 0,
463		inputLength = input.length,
464		key,
465		value;
466	for ( ; inputIndex < inputLength; inputIndex++ ) {
467		for ( key in input[ inputIndex ] ) {
468			value = input[ inputIndex ][ key ];
469			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
470				// Clone objects
471				if ( $.isPlainObject( value ) ) {
472					target[ key ] = $.isPlainObject( target[ key ] ) ?
473						$.widget.extend( {}, target[ key ], value ) :
474						// Don't extend strings, arrays, etc. with objects
475						$.widget.extend( {}, value );
476				// Copy everything else by reference
477				} else {
478					target[ key ] = value;
479				}
480			}
481		}
482	}
483	return target;
484};
485
486$.widget.bridge = function( name, object ) {
487	var fullName = object.prototype.widgetFullName || name;
488	$.fn[ name ] = function( options ) {
489		var isMethodCall = typeof options === "string",
490			args = widget_slice.call( arguments, 1 ),
491			returnValue = this;
492
493		if ( isMethodCall ) {
494			this.each(function() {
495				var methodValue,
496					instance = $.data( this, fullName );
497				if ( options === "instance" ) {
498					returnValue = instance;
499					return false;
500				}
501				if ( !instance ) {
502					return $.error( "cannot call methods on " + name + " prior to initialization; " +
503						"attempted to call method '" + options + "'" );
504				}
505				if ( !$.isFunction( instance[options] ) || options.charAt( 0 ) === "_" ) {
506					return $.error( "no such method '" + options + "' for " + name + " widget instance" );
507				}
508				methodValue = instance[ options ].apply( instance, args );
509				if ( methodValue !== instance && methodValue !== undefined ) {
510					returnValue = methodValue && methodValue.jquery ?
511						returnValue.pushStack( methodValue.get() ) :
512						methodValue;
513					return false;
514				}
515			});
516		} else {
517
518			// Allow multiple hashes to be passed on init
519			if ( args.length ) {
520				options = $.widget.extend.apply( null, [ options ].concat(args) );
521			}
522
523			this.each(function() {
524				var instance = $.data( this, fullName );
525				if ( instance ) {
526					instance.option( options || {} );
527					if ( instance._init ) {
528						instance._init();
529					}
530				} else {
531					$.data( this, fullName, new object( options, this ) );
532				}
533			});
534		}
535
536		return returnValue;
537	};
538};
539
540$.Widget = function( /* options, element */ ) {};
541$.Widget._childConstructors = [];
542
543$.Widget.prototype = {
544	widgetName: "widget",
545	widgetEventPrefix: "",
546	defaultElement: "<div>",
547	options: {
548		disabled: false,
549
550		// callbacks
551		create: null
552	},
553	_createWidget: function( options, element ) {
554		element = $( element || this.defaultElement || this )[ 0 ];
555		this.element = $( element );
556		this.uuid = widget_uuid++;
557		this.eventNamespace = "." + this.widgetName + this.uuid;
558
559		this.bindings = $();
560		this.hoverable = $();
561		this.focusable = $();
562
563		if ( element !== this ) {
564			$.data( element, this.widgetFullName, this );
565			this._on( true, this.element, {
566				remove: function( event ) {
567					if ( event.target === element ) {
568						this.destroy();
569					}
570				}
571			});
572			this.document = $( element.style ?
573				// element within the document
574				element.ownerDocument :
575				// element is window or document
576				element.document || element );
577			this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
578		}
579
580		this.options = $.widget.extend( {},
581			this.options,
582			this._getCreateOptions(),
583			options );
584
585		this._create();
586		this._trigger( "create", null, this._getCreateEventData() );
587		this._init();
588	},
589	_getCreateOptions: $.noop,
590	_getCreateEventData: $.noop,
591	_create: $.noop,
592	_init: $.noop,
593
594	destroy: function() {
595		this._destroy();
596		// we can probably remove the unbind calls in 2.0
597		// all event bindings should go through this._on()
598		this.element
599			.unbind( this.eventNamespace )
600			.removeData( this.widgetFullName )
601			// support: jquery <1.6.3
602			// http://bugs.jquery.com/ticket/9413
603			.removeData( $.camelCase( this.widgetFullName ) );
604		this.widget()
605			.unbind( this.eventNamespace )
606			.removeAttr( "aria-disabled" )
607			.removeClass(
608				this.widgetFullName + "-disabled " +
609				"ui-state-disabled" );
610
611		// clean up events and states
612		this.bindings.unbind( this.eventNamespace );
613		this.hoverable.removeClass( "ui-state-hover" );
614		this.focusable.removeClass( "ui-state-focus" );
615	},
616	_destroy: $.noop,
617
618	widget: function() {
619		return this.element;
620	},
621
622	option: function( key, value ) {
623		var options = key,
624			parts,
625			curOption,
626			i;
627
628		if ( arguments.length === 0 ) {
629			// don't return a reference to the internal hash
630			return $.widget.extend( {}, this.options );
631		}
632
633		if ( typeof key === "string" ) {
634			// handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
635			options = {};
636			parts = key.split( "." );
637			key = parts.shift();
638			if ( parts.length ) {
639				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
640				for ( i = 0; i < parts.length - 1; i++ ) {
641					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
642					curOption = curOption[ parts[ i ] ];
643				}
644				key = parts.pop();
645				if ( arguments.length === 1 ) {
646					return curOption[ key ] === undefined ? null : curOption[ key ];
647				}
648				curOption[ key ] = value;
649			} else {
650				if ( arguments.length === 1 ) {
651					return this.options[ key ] === undefined ? null : this.options[ key ];
652				}
653				options[ key ] = value;
654			}
655		}
656
657		this._setOptions( options );
658
659		return this;
660	},
661	_setOptions: function( options ) {
662		var key;
663
664		for ( key in options ) {
665			this._setOption( key, options[ key ] );
666		}
667
668		return this;
669	},
670	_setOption: function( key, value ) {
671		this.options[ key ] = value;
672
673		if ( key === "disabled" ) {
674			this.widget()
675				.toggleClass( this.widgetFullName + "-disabled", !!value );
676
677			// If the widget is becoming disabled, then nothing is interactive
678			if ( value ) {
679				this.hoverable.removeClass( "ui-state-hover" );
680				this.focusable.removeClass( "ui-state-focus" );
681			}
682		}
683
684		return this;
685	},
686
687	enable: function() {
688		return this._setOptions({ disabled: false });
689	},
690	disable: function() {
691		return this._setOptions({ disabled: true });
692	},
693
694	_on: function( suppressDisabledCheck, element, handlers ) {
695		var delegateElement,
696			instance = this;
697
698		// no suppressDisabledCheck flag, shuffle arguments
699		if ( typeof suppressDisabledCheck !== "boolean" ) {
700			handlers = element;
701			element = suppressDisabledCheck;
702			suppressDisabledCheck = false;
703		}
704
705		// no element argument, shuffle and use this.element
706		if ( !handlers ) {
707			handlers = element;
708			element = this.element;
709			delegateElement = this.widget();
710		} else {
711			element = delegateElement = $( element );
712			this.bindings = this.bindings.add( element );
713		}
714
715		$.each( handlers, function( event, handler ) {
716			function handlerProxy() {
717				// allow widgets to customize the disabled handling
718				// - disabled as an array instead of boolean
719				// - disabled class as method for disabling individual parts
720				if ( !suppressDisabledCheck &&
721						( instance.options.disabled === true ||
722							$( this ).hasClass( "ui-state-disabled" ) ) ) {
723					return;
724				}
725				return ( typeof handler === "string" ? instance[ handler ] : handler )
726					.apply( instance, arguments );
727			}
728
729			// copy the guid so direct unbinding works
730			if ( typeof handler !== "string" ) {
731				handlerProxy.guid = handler.guid =
732					handler.guid || handlerProxy.guid || $.guid++;
733			}
734
735			var match = event.match( /^([\w:-]*)\s*(.*)$/ ),
736				eventName = match[1] + instance.eventNamespace,
737				selector = match[2];
738			if ( selector ) {
739				delegateElement.delegate( selector, eventName, handlerProxy );
740			} else {
741				element.bind( eventName, handlerProxy );
742			}
743		});
744	},
745
746	_off: function( element, eventName ) {
747		eventName = (eventName || "").split( " " ).join( this.eventNamespace + " " ) +
748			this.eventNamespace;
749		element.unbind( eventName ).undelegate( eventName );
750
751		// Clear the stack to avoid memory leaks (#10056)
752		this.bindings = $( this.bindings.not( element ).get() );
753		this.focusable = $( this.focusable.not( element ).get() );
754		this.hoverable = $( this.hoverable.not( element ).get() );
755	},
756
757	_delay: function( handler, delay ) {
758		function handlerProxy() {
759			return ( typeof handler === "string" ? instance[ handler ] : handler )
760				.apply( instance, arguments );
761		}
762		var instance = this;
763		return setTimeout( handlerProxy, delay || 0 );
764	},
765
766	_hoverable: function( element ) {
767		this.hoverable = this.hoverable.add( element );
768		this._on( element, {
769			mouseenter: function( event ) {
770				$( event.currentTarget ).addClass( "ui-state-hover" );
771			},
772			mouseleave: function( event ) {
773				$( event.currentTarget ).removeClass( "ui-state-hover" );
774			}
775		});
776	},
777
778	_focusable: function( element ) {
779		this.focusable = this.focusable.add( element );
780		this._on( element, {
781			focusin: function( event ) {
782				$( event.currentTarget ).addClass( "ui-state-focus" );
783			},
784			focusout: function( event ) {
785				$( event.currentTarget ).removeClass( "ui-state-focus" );
786			}
787		});
788	},
789
790	_trigger: function( type, event, data ) {
791		var prop, orig,
792			callback = this.options[ type ];
793
794		data = data || {};
795		event = $.Event( event );
796		event.type = ( type === this.widgetEventPrefix ?
797			type :
798			this.widgetEventPrefix + type ).toLowerCase();
799		// the original event may come from any element
800		// so we need to reset the target on the new event
801		event.target = this.element[ 0 ];
802
803		// copy original event properties over to the new event
804		orig = event.originalEvent;
805		if ( orig ) {
806			for ( prop in orig ) {
807				if ( !( prop in event ) ) {
808					event[ prop ] = orig[ prop ];
809				}
810			}
811		}
812
813		this.element.trigger( event, data );
814		return !( $.isFunction( callback ) &&
815			callback.apply( this.element[0], [ event ].concat( data ) ) === false ||
816			event.isDefaultPrevented() );
817	}
818};
819
820$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
821	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
822		if ( typeof options === "string" ) {
823			options = { effect: options };
824		}
825		var hasOptions,
826			effectName = !options ?
827				method :
828				options === true || typeof options === "number" ?
829					defaultEffect :
830					options.effect || defaultEffect;
831		options = options || {};
832		if ( typeof options === "number" ) {
833			options = { duration: options };
834		}
835		hasOptions = !$.isEmptyObject( options );
836		options.complete = callback;
837		if ( options.delay ) {
838			element.delay( options.delay );
839		}
840		if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
841			element[ method ]( options );
842		} else if ( effectName !== method && element[ effectName ] ) {
843			element[ effectName ]( options.duration, options.easing, callback );
844		} else {
845			element.queue(function( next ) {
846				$( this )[ method ]();
847				if ( callback ) {
848					callback.call( element[ 0 ] );
849				}
850				next();
851			});
852		}
853	};
854});
855
856var widget = $.widget;
857
858
859/*!
860 * jQuery UI Position 1.11.4
861 * http://jqueryui.com
862 *
863 * Copyright jQuery Foundation and other contributors
864 * Released under the MIT license.
865 * http://jquery.org/license
866 *
867 * http://api.jqueryui.com/position/
868 */
869
870(function() {
871
872$.ui = $.ui || {};
873
874var cachedScrollbarWidth, supportsOffsetFractions,
875	max = Math.max,
876	abs = Math.abs,
877	round = Math.round,
878	rhorizontal = /left|center|right/,
879	rvertical = /top|center|bottom/,
880	roffset = /[\+\-]\d+(\.[\d]+)?%?/,
881	rposition = /^\w+/,
882	rpercent = /%$/,
883	_position = $.fn.position;
884
885function getOffsets( offsets, width, height ) {
886	return [
887		parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
888		parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
889	];
890}
891
892function parseCss( element, property ) {
893	return parseInt( $.css( element, property ), 10 ) || 0;
894}
895
896function getDimensions( elem ) {
897	var raw = elem[0];
898	if ( raw.nodeType === 9 ) {
899		return {
900			width: elem.width(),
901			height: elem.height(),
902			offset: { top: 0, left: 0 }
903		};
904	}
905	if ( $.isWindow( raw ) ) {
906		return {
907			width: elem.width(),
908			height: elem.height(),
909			offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
910		};
911	}
912	if ( raw.preventDefault ) {
913		return {
914			width: 0,
915			height: 0,
916			offset: { top: raw.pageY, left: raw.pageX }
917		};
918	}
919	return {
920		width: elem.outerWidth(),
921		height: elem.outerHeight(),
922		offset: elem.offset()
923	};
924}
925
926$.position = {
927	scrollbarWidth: function() {
928		if ( cachedScrollbarWidth !== undefined ) {
929			return cachedScrollbarWidth;
930		}
931		var w1, w2,
932			div = $( "<div style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
933			innerDiv = div.children()[0];
934
935		$( "body" ).append( div );
936		w1 = innerDiv.offsetWidth;
937		div.css( "overflow", "scroll" );
938
939		w2 = innerDiv.offsetWidth;
940
941		if ( w1 === w2 ) {
942			w2 = div[0].clientWidth;
943		}
944
945		div.remove();
946
947		return (cachedScrollbarWidth = w1 - w2);
948	},
949	getScrollInfo: function( within ) {
950		var overflowX = within.isWindow || within.isDocument ? "" :
951				within.element.css( "overflow-x" ),
952			overflowY = within.isWindow || within.isDocument ? "" :
953				within.element.css( "overflow-y" ),
954			hasOverflowX = overflowX === "scroll" ||
955				( overflowX === "auto" && within.width < within.element[0].scrollWidth ),
956			hasOverflowY = overflowY === "scroll" ||
957				( overflowY === "auto" && within.height < within.element[0].scrollHeight );
958		return {
959			width: hasOverflowY ? $.position.scrollbarWidth() : 0,
960			height: hasOverflowX ? $.position.scrollbarWidth() : 0
961		};
962	},
963	getWithinInfo: function( element ) {
964		var withinElement = $( element || window ),
965			isWindow = $.isWindow( withinElement[0] ),
966			isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9;
967		return {
968			element: withinElement,
969			isWindow: isWindow,
970			isDocument: isDocument,
971			offset: withinElement.offset() || { left: 0, top: 0 },
972			scrollLeft: withinElement.scrollLeft(),
973			scrollTop: withinElement.scrollTop(),
974
975			// support: jQuery 1.6.x
976			// jQuery 1.6 doesn't support .outerWidth/Height() on documents or windows
977			width: isWindow || isDocument ? withinElement.width() : withinElement.outerWidth(),
978			height: isWindow || isDocument ? withinElement.height() : withinElement.outerHeight()
979		};
980	}
981};
982
983$.fn.position = function( options ) {
984	if ( !options || !options.of ) {
985		return _position.apply( this, arguments );
986	}
987
988	// make a copy, we don't want to modify arguments
989	options = $.extend( {}, options );
990
991	var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
992		target = $( options.of ),
993		within = $.position.getWithinInfo( options.within ),
994		scrollInfo = $.position.getScrollInfo( within ),
995		collision = ( options.collision || "flip" ).split( " " ),
996		offsets = {};
997
998	dimensions = getDimensions( target );
999	if ( target[0].preventDefault ) {
1000		// force left top to allow flipping
1001		options.at = "left top";
1002	}
1003	targetWidth = dimensions.width;
1004	targetHeight = dimensions.height;
1005	targetOffset = dimensions.offset;
1006	// clone to reuse original targetOffset later
1007	basePosition = $.extend( {}, targetOffset );
1008
1009	// force my and at to have valid horizontal and vertical positions
1010	// if a value is missing or invalid, it will be converted to center
1011	$.each( [ "my", "at" ], function() {
1012		var pos = ( options[ this ] || "" ).split( " " ),
1013			horizontalOffset,
1014			verticalOffset;
1015
1016		if ( pos.length === 1) {
1017			pos = rhorizontal.test( pos[ 0 ] ) ?
1018				pos.concat( [ "center" ] ) :
1019				rvertical.test( pos[ 0 ] ) ?
1020					[ "center" ].concat( pos ) :
1021					[ "center", "center" ];
1022		}
1023		pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
1024		pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";
1025
1026		// calculate offsets
1027		horizontalOffset = roffset.exec( pos[ 0 ] );
1028		verticalOffset = roffset.exec( pos[ 1 ] );
1029		offsets[ this ] = [
1030			horizontalOffset ? horizontalOffset[ 0 ] : 0,
1031			verticalOffset ? verticalOffset[ 0 ] : 0
1032		];
1033
1034		// reduce to just the positions without the offsets
1035		options[ this ] = [
1036			rposition.exec( pos[ 0 ] )[ 0 ],
1037			rposition.exec( pos[ 1 ] )[ 0 ]
1038		];
1039	});
1040
1041	// normalize collision option
1042	if ( collision.length === 1 ) {
1043		collision[ 1 ] = collision[ 0 ];
1044	}
1045
1046	if ( options.at[ 0 ] === "right" ) {
1047		basePosition.left += targetWidth;
1048	} else if ( options.at[ 0 ] === "center" ) {
1049		basePosition.left += targetWidth / 2;
1050	}
1051
1052	if ( options.at[ 1 ] === "bottom" ) {
1053		basePosition.top += targetHeight;
1054	} else if ( options.at[ 1 ] === "center" ) {
1055		basePosition.top += targetHeight / 2;
1056	}
1057
1058	atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
1059	basePosition.left += atOffset[ 0 ];
1060	basePosition.top += atOffset[ 1 ];
1061
1062	return this.each(function() {
1063		var collisionPosition, using,
1064			elem = $( this ),
1065			elemWidth = elem.outerWidth(),
1066			elemHeight = elem.outerHeight(),
1067			marginLeft = parseCss( this, "marginLeft" ),
1068			marginTop = parseCss( this, "marginTop" ),
1069			collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + scrollInfo.width,
1070			collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + scrollInfo.height,
1071			position = $.extend( {}, basePosition ),
1072			myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );
1073
1074		if ( options.my[ 0 ] === "right" ) {
1075			position.left -= elemWidth;
1076		} else if ( options.my[ 0 ] === "center" ) {
1077			position.left -= elemWidth / 2;
1078		}
1079
1080		if ( options.my[ 1 ] === "bottom" ) {
1081			position.top -= elemHeight;
1082		} else if ( options.my[ 1 ] === "center" ) {
1083			position.top -= elemHeight / 2;
1084		}
1085
1086		position.left += myOffset[ 0 ];
1087		position.top += myOffset[ 1 ];
1088
1089		// if the browser doesn't support fractions, then round for consistent results
1090		if ( !supportsOffsetFractions ) {
1091			position.left = round( position.left );
1092			position.top = round( position.top );
1093		}
1094
1095		collisionPosition = {
1096			marginLeft: marginLeft,
1097			marginTop: marginTop
1098		};
1099
1100		$.each( [ "left", "top" ], function( i, dir ) {
1101			if ( $.ui.position[ collision[ i ] ] ) {
1102				$.ui.position[ collision[ i ] ][ dir ]( position, {
1103					targetWidth: targetWidth,
1104					targetHeight: targetHeight,
1105					elemWidth: elemWidth,
1106					elemHeight: elemHeight,
1107					collisionPosition: collisionPosition,
1108					collisionWidth: collisionWidth,
1109					collisionHeight: collisionHeight,
1110					offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
1111					my: options.my,
1112					at: options.at,
1113					within: within,
1114					elem: elem
1115				});
1116			}
1117		});
1118
1119		if ( options.using ) {
1120			// adds feedback as second argument to using callback, if present
1121			using = function( props ) {
1122				var left = targetOffset.left - position.left,
1123					right = left + targetWidth - elemWidth,
1124					top = targetOffset.top - position.top,
1125					bottom = top + targetHeight - elemHeight,
1126					feedback = {
1127						target: {
1128							element: target,
1129							left: targetOffset.left,
1130							top: targetOffset.top,
1131							width: targetWidth,
1132							height: targetHeight
1133						},
1134						element: {
1135							element: elem,
1136							left: position.left,
1137							top: position.top,
1138							width: elemWidth,
1139							height: elemHeight
1140						},
1141						horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
1142						vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
1143					};
1144				if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
1145					feedback.horizontal = "center";
1146				}
1147				if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
1148					feedback.vertical = "middle";
1149				}
1150				if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
1151					feedback.important = "horizontal";
1152				} else {
1153					feedback.important = "vertical";
1154				}
1155				options.using.call( this, props, feedback );
1156			};
1157		}
1158
1159		elem.offset( $.extend( position, { using: using } ) );
1160	});
1161};
1162
1163$.ui.position = {
1164	fit: {
1165		left: function( position, data ) {
1166			var within = data.within,
1167				withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
1168				outerWidth = within.width,
1169				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
1170				overLeft = withinOffset - collisionPosLeft,
1171				overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
1172				newOverRight;
1173
1174			// element is wider than within
1175			if ( data.collisionWidth > outerWidth ) {
1176				// element is initially over the left side of within
1177				if ( overLeft > 0 && overRight <= 0 ) {
1178					newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - withinOffset;
1179					position.left += overLeft - newOverRight;
1180				// element is initially over right side of within
1181				} else if ( overRight > 0 && overLeft <= 0 ) {
1182					position.left = withinOffset;
1183				// element is initially over both left and right sides of within
1184				} else {
1185					if ( overLeft > overRight ) {
1186						position.left = withinOffset + outerWidth - data.collisionWidth;
1187					} else {
1188						position.left = withinOffset;
1189					}
1190				}
1191			// too far left -> align with left edge
1192			} else if ( overLeft > 0 ) {
1193				position.left += overLeft;
1194			// too far right -> align with right edge
1195			} else if ( overRight > 0 ) {
1196				position.left -= overRight;
1197			// adjust based on position and margin
1198			} else {
1199				position.left = max( position.left - collisionPosLeft, position.left );
1200			}
1201		},
1202		top: function( position, data ) {
1203			var within = data.within,
1204				withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
1205				outerHeight = data.within.height,
1206				collisionPosTop = position.top - data.collisionPosition.marginTop,
1207				overTop = withinOffset - collisionPosTop,
1208				overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
1209				newOverBottom;
1210
1211			// element is taller than within
1212			if ( data.collisionHeight > outerHeight ) {
1213				// element is initially over the top of within
1214				if ( overTop > 0 && overBottom <= 0 ) {
1215					newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - withinOffset;
1216					position.top += overTop - newOverBottom;
1217				// element is initially over bottom of within
1218				} else if ( overBottom > 0 && overTop <= 0 ) {
1219					position.top = withinOffset;
1220				// element is initially over both top and bottom of within
1221				} else {
1222					if ( overTop > overBottom ) {
1223						position.top = withinOffset + outerHeight - data.collisionHeight;
1224					} else {
1225						position.top = withinOffset;
1226					}
1227				}
1228			// too far up -> align with top
1229			} else if ( overTop > 0 ) {
1230				position.top += overTop;
1231			// too far down -> align with bottom edge
1232			} else if ( overBottom > 0 ) {
1233				position.top -= overBottom;
1234			// adjust based on position and margin
1235			} else {
1236				position.top = max( position.top - collisionPosTop, position.top );
1237			}
1238		}
1239	},
1240	flip: {
1241		left: function( position, data ) {
1242			var within = data.within,
1243				withinOffset = within.offset.left + within.scrollLeft,
1244				outerWidth = within.width,
1245				offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
1246				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
1247				overLeft = collisionPosLeft - offsetLeft,
1248				overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
1249				myOffset = data.my[ 0 ] === "left" ?
1250					-data.elemWidth :
1251					data.my[ 0 ] === "right" ?
1252						data.elemWidth :
1253						0,
1254				atOffset = data.at[ 0 ] === "left" ?
1255					data.targetWidth :
1256					data.at[ 0 ] === "right" ?
1257						-data.targetWidth :
1258						0,
1259				offset = -2 * data.offset[ 0 ],
1260				newOverRight,
1261				newOverLeft;
1262
1263			if ( overLeft < 0 ) {
1264				newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - outerWidth - withinOffset;
1265				if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
1266					position.left += myOffset + atOffset + offset;
1267				}
1268			} else if ( overRight > 0 ) {
1269				newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + atOffset + offset - offsetLeft;
1270				if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
1271					position.left += myOffset + atOffset + offset;
1272				}
1273			}
1274		},
1275		top: function( position, data ) {
1276			var within = data.within,
1277				withinOffset = within.offset.top + within.scrollTop,
1278				outerHeight = within.height,
1279				offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
1280				collisionPosTop = position.top - data.collisionPosition.marginTop,
1281				overTop = collisionPosTop - offsetTop,
1282				overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
1283				top = data.my[ 1 ] === "top",
1284				myOffset = top ?
1285					-data.elemHeight :
1286					data.my[ 1 ] === "bottom" ?
1287						data.elemHeight :
1288						0,
1289				atOffset = data.at[ 1 ] === "top" ?
1290					data.targetHeight :
1291					data.at[ 1 ] === "bottom" ?
1292						-data.targetHeight :
1293						0,
1294				offset = -2 * data.offset[ 1 ],
1295				newOverTop,
1296				newOverBottom;
1297			if ( overTop < 0 ) {
1298				newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - outerHeight - withinOffset;
1299				if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {
1300					position.top += myOffset + atOffset + offset;
1301				}
1302			} else if ( overBottom > 0 ) {
1303				newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset + offset - offsetTop;
1304				if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {
1305					position.top += myOffset + atOffset + offset;
1306				}
1307			}
1308		}
1309	},
1310	flipfit: {
1311		left: function() {
1312			$.ui.position.flip.left.apply( this, arguments );
1313			$.ui.position.fit.left.apply( this, arguments );
1314		},
1315		top: function() {
1316			$.ui.position.flip.top.apply( this, arguments );
1317			$.ui.position.fit.top.apply( this, arguments );
1318		}
1319	}
1320};
1321
1322// fraction support test
1323(function() {
1324	var testElement, testElementParent, testElementStyle, offsetLeft, i,
1325		body = document.getElementsByTagName( "body" )[ 0 ],
1326		div = document.createElement( "div" );
1327
1328	//Create a "fake body" for testing based on method used in jQuery.support
1329	testElement = document.createElement( body ? "div" : "body" );
1330	testElementStyle = {
1331		visibility: "hidden",
1332		width: 0,
1333		height: 0,
1334		border: 0,
1335		margin: 0,
1336		background: "none"
1337	};
1338	if ( body ) {
1339		$.extend( testElementStyle, {
1340			position: "absolute",
1341			left: "-1000px",
1342			top: "-1000px"
1343		});
1344	}
1345	for ( i in testElementStyle ) {
1346		testElement.style[ i ] = testElementStyle[ i ];
1347	}
1348	testElement.appendChild( div );
1349	testElementParent = body || document.documentElement;
1350	testElementParent.insertBefore( testElement, testElementParent.firstChild );
1351
1352	div.style.cssText = "position: absolute; left: 10.7432222px;";
1353
1354	offsetLeft = $( div ).offset().left;
1355	supportsOffsetFractions = offsetLeft > 10 && offsetLeft < 11;
1356
1357	testElement.innerHTML = "";
1358	testElementParent.removeChild( testElement );
1359})();
1360
1361})();
1362
1363var position = $.ui.position;
1364
1365
1366/*!
1367 * jQuery UI Menu 1.11.4
1368 * http://jqueryui.com
1369 *
1370 * Copyright jQuery Foundation and other contributors
1371 * Released under the MIT license.
1372 * http://jquery.org/license
1373 *
1374 * http://api.jqueryui.com/menu/
1375 */
1376
1377
1378var menu = $.widget( "ui.menu", {
1379	version: "1.11.4",
1380	defaultElement: "<ul>",
1381	delay: 300,
1382	options: {
1383		icons: {
1384			submenu: "ui-icon-carat-1-e"
1385		},
1386		items: "> *",
1387		menus: "ul",
1388		position: {
1389			my: "left-1 top",
1390			at: "right top"
1391		},
1392		role: "menu",
1393
1394		// callbacks
1395		blur: null,
1396		focus: null,
1397		select: null
1398	},
1399
1400	_create: function() {
1401		this.activeMenu = this.element;
1402
1403		// Flag used to prevent firing of the click handler
1404		// as the event bubbles up through nested menus
1405		this.mouseHandled = false;
1406		this.element
1407			.uniqueId()
1408			.addClass( "ui-menu ui-widget ui-widget-content" )
1409			.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
1410			.attr({
1411				role: this.options.role,
1412				tabIndex: 0
1413			});
1414
1415		if ( this.options.disabled ) {
1416			this.element
1417				.addClass( "ui-state-disabled" )
1418				.attr( "aria-disabled", "true" );
1419		}
1420
1421		this._on({
1422			// Prevent focus from sticking to links inside menu after clicking
1423			// them (focus should always stay on UL during navigation).
1424			"mousedown .ui-menu-item": function( event ) {
1425				event.preventDefault();
1426			},
1427			"click .ui-menu-item": function( event ) {
1428				var target = $( event.target );
1429				if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
1430					this.select( event );
1431
1432					// Only set the mouseHandled flag if the event will bubble, see #9469.
1433					if ( !event.isPropagationStopped() ) {
1434						this.mouseHandled = true;
1435					}
1436
1437					// Open submenu on click
1438					if ( target.has( ".ui-menu" ).length ) {
1439						this.expand( event );
1440					} else if ( !this.element.is( ":focus" ) && $( this.document[ 0 ].activeElement ).closest( ".ui-menu" ).length ) {
1441
1442						// Redirect focus to the menu
1443						this.element.trigger( "focus", [ true ] );
1444
1445						// If the active item is on the top level, let it stay active.
1446						// Otherwise, blur the active item since it is no longer visible.
1447						if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
1448							clearTimeout( this.timer );
1449						}
1450					}
1451				}
1452			},
1453			"mouseenter .ui-menu-item": function( event ) {
1454				// Ignore mouse events while typeahead is active, see #10458.
1455				// Prevents focusing the wrong item when typeahead causes a scroll while the mouse
1456				// is over an item in the menu
1457				if ( this.previousFilter ) {
1458					return;
1459				}
1460				var target = $( event.currentTarget );
1461				// Remove ui-state-active class from siblings of the newly focused menu item
1462				// to avoid a jump caused by adjacent elements both having a class with a border
1463				target.siblings( ".ui-state-active" ).removeClass( "ui-state-active" );
1464				this.focus( event, target );
1465			},
1466			mouseleave: "collapseAll",
1467			"mouseleave .ui-menu": "collapseAll",
1468			focus: function( event, keepActiveItem ) {
1469				// If there's already an active item, keep it active
1470				// If not, activate the first item
1471				var item = this.active || this.element.find( this.options.items ).eq( 0 );
1472
1473				if ( !keepActiveItem ) {
1474					this.focus( event, item );
1475				}
1476			},
1477			blur: function( event ) {
1478				this._delay(function() {
1479					if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
1480						this.collapseAll( event );
1481					}
1482				});
1483			},
1484			keydown: "_keydown"
1485		});
1486
1487		this.refresh();
1488
1489		// Clicks outside of a menu collapse any open menus
1490		this._on( this.document, {
1491			click: function( event ) {
1492				if ( this._closeOnDocumentClick( event ) ) {
1493					this.collapseAll( event );
1494				}
1495
1496				// Reset the mouseHandled flag
1497				this.mouseHandled = false;
1498			}
1499		});
1500	},
1501
1502	_destroy: function() {
1503		// Destroy (sub)menus
1504		this.element
1505			.removeAttr( "aria-activedescendant" )
1506			.find( ".ui-menu" ).addBack()
1507				.removeClass( "ui-menu ui-widget ui-widget-content ui-menu-icons ui-front" )
1508				.removeAttr( "role" )
1509				.removeAttr( "tabIndex" )
1510				.removeAttr( "aria-labelledby" )
1511				.removeAttr( "aria-expanded" )
1512				.removeAttr( "aria-hidden" )
1513				.removeAttr( "aria-disabled" )
1514				.removeUniqueId()
1515				.show();
1516
1517		// Destroy menu items
1518		this.element.find( ".ui-menu-item" )
1519			.removeClass( "ui-menu-item" )
1520			.removeAttr( "role" )
1521			.removeAttr( "aria-disabled" )
1522			.removeUniqueId()
1523			.removeClass( "ui-state-hover" )
1524			.removeAttr( "tabIndex" )
1525			.removeAttr( "role" )
1526			.removeAttr( "aria-haspopup" )
1527			.children().each( function() {
1528				var elem = $( this );
1529				if ( elem.data( "ui-menu-submenu-carat" ) ) {
1530					elem.remove();
1531				}
1532			});
1533
1534		// Destroy menu dividers
1535		this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
1536	},
1537
1538	_keydown: function( event ) {
1539		var match, prev, character, skip,
1540			preventDefault = true;
1541
1542		switch ( event.keyCode ) {
1543		case $.ui.keyCode.PAGE_UP:
1544			this.previousPage( event );
1545			break;
1546		case $.ui.keyCode.PAGE_DOWN:
1547			this.nextPage( event );
1548			break;
1549		case $.ui.keyCode.HOME:
1550			this._move( "first", "first", event );
1551			break;
1552		case $.ui.keyCode.END:
1553			this._move( "last", "last", event );
1554			break;
1555		case $.ui.keyCode.UP:
1556			this.previous( event );
1557			break;
1558		case $.ui.keyCode.DOWN:
1559			this.next( event );
1560			break;
1561		case $.ui.keyCode.LEFT:
1562			this.collapse( event );
1563			break;
1564		case $.ui.keyCode.RIGHT:
1565			if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
1566				this.expand( event );
1567			}
1568			break;
1569		case $.ui.keyCode.ENTER:
1570		case $.ui.keyCode.SPACE:
1571			this._activate( event );
1572			break;
1573		case $.ui.keyCode.ESCAPE:
1574			this.collapse( event );
1575			break;
1576		default:
1577			preventDefault = false;
1578			prev = this.previousFilter || "";
1579			character = String.fromCharCode( event.keyCode );
1580			skip = false;
1581
1582			clearTimeout( this.filterTimer );
1583
1584			if ( character === prev ) {
1585				skip = true;
1586			} else {
1587				character = prev + character;
1588			}
1589
1590			match = this._filterMenuItems( character );
1591			match = skip && match.index( this.active.next() ) !== -1 ?
1592				this.active.nextAll( ".ui-menu-item" ) :
1593				match;
1594
1595			// If no matches on the current filter, reset to the last character pressed
1596			// to move down the menu to the first item that starts with that character
1597			if ( !match.length ) {
1598				character = String.fromCharCode( event.keyCode );
1599				match = this._filterMenuItems( character );
1600			}
1601
1602			if ( match.length ) {
1603				this.focus( event, match );
1604				this.previousFilter = character;
1605				this.filterTimer = this._delay(function() {
1606					delete this.previousFilter;
1607				}, 1000 );
1608			} else {
1609				delete this.previousFilter;
1610			}
1611		}
1612
1613		if ( preventDefault ) {
1614			event.preventDefault();
1615		}
1616	},
1617
1618	_activate: function( event ) {
1619		if ( !this.active.is( ".ui-state-disabled" ) ) {
1620			if ( this.active.is( "[aria-haspopup='true']" ) ) {
1621				this.expand( event );
1622			} else {
1623				this.select( event );
1624			}
1625		}
1626	},
1627
1628	refresh: function() {
1629		var menus, items,
1630			that = this,
1631			icon = this.options.icons.submenu,
1632			submenus = this.element.find( this.options.menus );
1633
1634		this.element.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length );
1635
1636		// Initialize nested menus
1637		submenus.filter( ":not(.ui-menu)" )
1638			.addClass( "ui-menu ui-widget ui-widget-content ui-front" )
1639			.hide()
1640			.attr({
1641				role: this.options.role,
1642				"aria-hidden": "true",
1643				"aria-expanded": "false"
1644			})
1645			.each(function() {
1646				var menu = $( this ),
1647					item = menu.parent(),
1648					submenuCarat = $( "<span>" )
1649						.addClass( "ui-menu-icon ui-icon " + icon )
1650						.data( "ui-menu-submenu-carat", true );
1651
1652				item
1653					.attr( "aria-haspopup", "true" )
1654					.prepend( submenuCarat );
1655				menu.attr( "aria-labelledby", item.attr( "id" ) );
1656			});
1657
1658		menus = submenus.add( this.element );
1659		items = menus.find( this.options.items );
1660
1661		// Initialize menu-items containing spaces and/or dashes only as dividers
1662		items.not( ".ui-menu-item" ).each(function() {
1663			var item = $( this );
1664			if ( that._isDivider( item ) ) {
1665				item.addClass( "ui-widget-content ui-menu-divider" );
1666			}
1667		});
1668
1669		// Don't refresh list items that are already adapted
1670		items.not( ".ui-menu-item, .ui-menu-divider" )
1671			.addClass( "ui-menu-item" )
1672			.uniqueId()
1673			.attr({
1674				tabIndex: -1,
1675				role: this._itemRole()
1676			});
1677
1678		// Add aria-disabled attribute to any disabled menu item
1679		items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
1680
1681		// If the active item has been removed, blur the menu
1682		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
1683			this.blur();
1684		}
1685	},
1686
1687	_itemRole: function() {
1688		return {
1689			menu: "menuitem",
1690			listbox: "option"
1691		}[ this.options.role ];
1692	},
1693
1694	_setOption: function( key, value ) {
1695		if ( key === "icons" ) {
1696			this.element.find( ".ui-menu-icon" )
1697				.removeClass( this.options.icons.submenu )
1698				.addClass( value.submenu );
1699		}
1700		if ( key === "disabled" ) {
1701			this.element
1702				.toggleClass( "ui-state-disabled", !!value )
1703				.attr( "aria-disabled", value );
1704		}
1705		this._super( key, value );
1706	},
1707
1708	focus: function( event, item ) {
1709		var nested, focused;
1710		this.blur( event, event && event.type === "focus" );
1711
1712		this._scrollIntoView( item );
1713
1714		this.active = item.first();
1715		focused = this.active.addClass( "ui-state-focus" ).removeClass( "ui-state-active" );
1716		// Only update aria-activedescendant if there's a role
1717		// otherwise we assume focus is managed elsewhere
1718		if ( this.options.role ) {
1719			this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
1720		}
1721
1722		// Highlight active parent menu item, if any
1723		this.active
1724			.parent()
1725			.closest( ".ui-menu-item" )
1726			.addClass( "ui-state-active" );
1727
1728		if ( event && event.type === "keydown" ) {
1729			this._close();
1730		} else {
1731			this.timer = this._delay(function() {
1732				this._close();
1733			}, this.delay );
1734		}
1735
1736		nested = item.children( ".ui-menu" );
1737		if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
1738			this._startOpening(nested);
1739		}
1740		this.activeMenu = item.parent();
1741
1742		this._trigger( "focus", event, { item: item } );
1743	},
1744
1745	_scrollIntoView: function( item ) {
1746		var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
1747		if ( this._hasScroll() ) {
1748			borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
1749			paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
1750			offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
1751			scroll = this.activeMenu.scrollTop();
1752			elementHeight = this.activeMenu.height();
1753			itemHeight = item.outerHeight();
1754
1755			if ( offset < 0 ) {
1756				this.activeMenu.scrollTop( scroll + offset );
1757			} else if ( offset + itemHeight > elementHeight ) {
1758				this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
1759			}
1760		}
1761	},
1762
1763	blur: function( event, fromFocus ) {
1764		if ( !fromFocus ) {
1765			clearTimeout( this.timer );
1766		}
1767
1768		if ( !this.active ) {
1769			return;
1770		}
1771
1772		this.active.removeClass( "ui-state-focus" );
1773		this.active = null;
1774
1775		this._trigger( "blur", event, { item: this.active } );
1776	},
1777
1778	_startOpening: function( submenu ) {
1779		clearTimeout( this.timer );
1780
1781		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
1782		// shift in the submenu position when mousing over the carat icon
1783		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
1784			return;
1785		}
1786
1787		this.timer = this._delay(function() {
1788			this._close();
1789			this._open( submenu );
1790		}, this.delay );
1791	},
1792
1793	_open: function( submenu ) {
1794		var position = $.extend({
1795			of: this.active
1796		}, this.options.position );
1797
1798		clearTimeout( this.timer );
1799		this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
1800			.hide()
1801			.attr( "aria-hidden", "true" );
1802
1803		submenu
1804			.show()
1805			.removeAttr( "aria-hidden" )
1806			.attr( "aria-expanded", "true" )
1807			.position( position );
1808	},
1809
1810	collapseAll: function( event, all ) {
1811		clearTimeout( this.timer );
1812		this.timer = this._delay(function() {
1813			// If we were passed an event, look for the submenu that contains the event
1814			var currentMenu = all ? this.element :
1815				$( event && event.target ).closest( this.element.find( ".ui-menu" ) );
1816
1817			// If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
1818			if ( !currentMenu.length ) {
1819				currentMenu = this.element;
1820			}
1821
1822			this._close( currentMenu );
1823
1824			this.blur( event );
1825			this.activeMenu = currentMenu;
1826		}, this.delay );
1827	},
1828
1829	// With no arguments, closes the currently active menu - if nothing is active
1830	// it closes all menus.  If passed an argument, it will search for menus BELOW
1831	_close: function( startMenu ) {
1832		if ( !startMenu ) {
1833			startMenu = this.active ? this.active.parent() : this.element;
1834		}
1835
1836		startMenu
1837			.find( ".ui-menu" )
1838				.hide()
1839				.attr( "aria-hidden", "true" )
1840				.attr( "aria-expanded", "false" )
1841			.end()
1842			.find( ".ui-state-active" ).not( ".ui-state-focus" )
1843				.removeClass( "ui-state-active" );
1844	},
1845
1846	_closeOnDocumentClick: function( event ) {
1847		return !$( event.target ).closest( ".ui-menu" ).length;
1848	},
1849
1850	_isDivider: function( item ) {
1851
1852		// Match hyphen, em dash, en dash
1853		return !/[^\-\u2014\u2013\s]/.test( item.text() );
1854	},
1855
1856	collapse: function( event ) {
1857		var newItem = this.active &&
1858			this.active.parent().closest( ".ui-menu-item", this.element );
1859		if ( newItem && newItem.length ) {
1860			this._close();
1861			this.focus( event, newItem );
1862		}
1863	},
1864
1865	expand: function( event ) {
1866		var newItem = this.active &&
1867			this.active
1868				.children( ".ui-menu " )
1869				.find( this.options.items )
1870				.first();
1871
1872		if ( newItem && newItem.length ) {
1873			this._open( newItem.parent() );
1874
1875			// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
1876			this._delay(function() {
1877				this.focus( event, newItem );
1878			});
1879		}
1880	},
1881
1882	next: function( event ) {
1883		this._move( "next", "first", event );
1884	},
1885
1886	previous: function( event ) {
1887		this._move( "prev", "last", event );
1888	},
1889
1890	isFirstItem: function() {
1891		return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
1892	},
1893
1894	isLastItem: function() {
1895		return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
1896	},
1897
1898	_move: function( direction, filter, event ) {
1899		var next;
1900		if ( this.active ) {
1901			if ( direction === "first" || direction === "last" ) {
1902				next = this.active
1903					[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
1904					.eq( -1 );
1905			} else {
1906				next = this.active
1907					[ direction + "All" ]( ".ui-menu-item" )
1908					.eq( 0 );
1909			}
1910		}
1911		if ( !next || !next.length || !this.active ) {
1912			next = this.activeMenu.find( this.options.items )[ filter ]();
1913		}
1914
1915		this.focus( event, next );
1916	},
1917
1918	nextPage: function( event ) {
1919		var item, base, height;
1920
1921		if ( !this.active ) {
1922			this.next( event );
1923			return;
1924		}
1925		if ( this.isLastItem() ) {
1926			return;
1927		}
1928		if ( this._hasScroll() ) {
1929			base = this.active.offset().top;
1930			height = this.element.height();
1931			this.active.nextAll( ".ui-menu-item" ).each(function() {
1932				item = $( this );
1933				return item.offset().top - base - height < 0;
1934			});
1935
1936			this.focus( event, item );
1937		} else {
1938			this.focus( event, this.activeMenu.find( this.options.items )
1939				[ !this.active ? "first" : "last" ]() );
1940		}
1941	},
1942
1943	previousPage: function( event ) {
1944		var item, base, height;
1945		if ( !this.active ) {
1946			this.next( event );
1947			return;
1948		}
1949		if ( this.isFirstItem() ) {
1950			return;
1951		}
1952		if ( this._hasScroll() ) {
1953			base = this.active.offset().top;
1954			height = this.element.height();
1955			this.active.prevAll( ".ui-menu-item" ).each(function() {
1956				item = $( this );
1957				return item.offset().top - base + height > 0;
1958			});
1959
1960			this.focus( event, item );
1961		} else {
1962			this.focus( event, this.activeMenu.find( this.options.items ).first() );
1963		}
1964	},
1965
1966	_hasScroll: function() {
1967		return this.element.outerHeight() < this.element.prop( "scrollHeight" );
1968	},
1969
1970	select: function( event ) {
1971		// TODO: It should never be possible to not have an active item at this
1972		// point, but the tests don't trigger mouseenter before click.
1973		this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
1974		var ui = { item: this.active };
1975		if ( !this.active.has( ".ui-menu" ).length ) {
1976			this.collapseAll( event, true );
1977		}
1978		this._trigger( "select", event, ui );
1979	},
1980
1981	_filterMenuItems: function(character) {
1982		var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
1983			regex = new RegExp( "^" + escapedCharacter, "i" );
1984
1985		return this.activeMenu
1986			.find( this.options.items )
1987
1988			// Only match on items, not dividers or other content (#10571)
1989			.filter( ".ui-menu-item" )
1990			.filter(function() {
1991				return regex.test( $.trim( $( this ).text() ) );
1992			});
1993	}
1994});
1995
1996
1997/*!
1998 * jQuery UI Autocomplete 1.11.4
1999 * http://jqueryui.com
2000 *
2001 * Copyright jQuery Foundation and other contributors
2002 * Released under the MIT license.
2003 * http://jquery.org/license
2004 *
2005 * http://api.jqueryui.com/autocomplete/
2006 */
2007
2008
2009$.widget( "ui.autocomplete", {
2010	version: "1.11.4",
2011	defaultElement: "<input>",
2012	options: {
2013		appendTo: null,
2014		autoFocus: false,
2015		delay: 300,
2016		minLength: 1,
2017		position: {
2018			my: "left top",
2019			at: "left bottom",
2020			collision: "none"
2021		},
2022		source: null,
2023
2024		// callbacks
2025		change: null,
2026		close: null,
2027		focus: null,
2028		open: null,
2029		response: null,
2030		search: null,
2031		select: null
2032	},
2033
2034	requestIndex: 0,
2035	pending: 0,
2036
2037	_create: function() {
2038		// Some browsers only repeat keydown events, not keypress events,
2039		// so we use the suppressKeyPress flag to determine if we've already
2040		// handled the keydown event. #7269
2041		// Unfortunately the code for & in keypress is the same as the up arrow,
2042		// so we use the suppressKeyPressRepeat flag to avoid handling keypress
2043		// events when we know the keydown event was used to modify the
2044		// search term. #7799
2045		var suppressKeyPress, suppressKeyPressRepeat, suppressInput,
2046			nodeName = this.element[ 0 ].nodeName.toLowerCase(),
2047			isTextarea = nodeName === "textarea",
2048			isInput = nodeName === "input";
2049
2050		this.isMultiLine =
2051			// Textareas are always multi-line
2052			isTextarea ? true :
2053			// Inputs are always single-line, even if inside a contentEditable element
2054			// IE also treats inputs as contentEditable
2055			isInput ? false :
2056			// All other element types are determined by whether or not they're contentEditable
2057			this.element.prop( "isContentEditable" );
2058
2059		this.valueMethod = this.element[ isTextarea || isInput ? "val" : "text" ];
2060		this.isNewMenu = true;
2061
2062		this.element
2063			.addClass( "ui-autocomplete-input" )
2064			.attr( "autocomplete", "off" );
2065
2066		this._on( this.element, {
2067			keydown: function( event ) {
2068				if ( this.element.prop( "readOnly" ) ) {
2069					suppressKeyPress = true;
2070					suppressInput = true;
2071					suppressKeyPressRepeat = true;
2072					return;
2073				}
2074
2075				suppressKeyPress = false;
2076				suppressInput = false;
2077				suppressKeyPressRepeat = false;
2078				var keyCode = $.ui.keyCode;
2079				switch ( event.keyCode ) {
2080				case keyCode.PAGE_UP:
2081					suppressKeyPress = true;
2082					this._move( "previousPage", event );
2083					break;
2084				case keyCode.PAGE_DOWN:
2085					suppressKeyPress = true;
2086					this._move( "nextPage", event );
2087					break;
2088				case keyCode.UP:
2089					suppressKeyPress = true;
2090					this._keyEvent( "previous", event );
2091					break;
2092				case keyCode.DOWN:
2093					suppressKeyPress = true;
2094					this._keyEvent( "next", event );
2095					break;
2096				case keyCode.ENTER:
2097					// when menu is open and has focus
2098					if ( this.menu.active ) {
2099						// #6055 - Opera still allows the keypress to occur
2100						// which causes forms to submit
2101						suppressKeyPress = true;
2102						event.preventDefault();
2103						this.menu.select( event );
2104					}
2105					break;
2106				case keyCode.TAB:
2107					if ( this.menu.active ) {
2108						this.menu.select( event );
2109					}
2110					break;
2111				case keyCode.ESCAPE:
2112					if ( this.menu.element.is( ":visible" ) ) {
2113						if ( !this.isMultiLine ) {
2114							this._value( this.term );
2115						}
2116						this.close( event );
2117						// Different browsers have different default behavior for escape
2118						// Single press can mean undo or clear
2119						// Double press in IE means clear the whole form
2120						event.preventDefault();
2121					}
2122					break;
2123				default:
2124					suppressKeyPressRepeat = true;
2125					// search timeout should be triggered before the input value is changed
2126					this._searchTimeout( event );
2127					break;
2128				}
2129			},
2130			keypress: function( event ) {
2131				if ( suppressKeyPress ) {
2132					suppressKeyPress = false;
2133					if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
2134						event.preventDefault();
2135					}
2136					return;
2137				}
2138				if ( suppressKeyPressRepeat ) {
2139					return;
2140				}
2141
2142				// replicate some key handlers to allow them to repeat in Firefox and Opera
2143				var keyCode = $.ui.keyCode;
2144				switch ( event.keyCode ) {
2145				case keyCode.PAGE_UP:
2146					this._move( "previousPage", event );
2147					break;
2148				case keyCode.PAGE_DOWN:
2149					this._move( "nextPage", event );
2150					break;
2151				case keyCode.UP:
2152					this._keyEvent( "previous", event );
2153					break;
2154				case keyCode.DOWN:
2155					this._keyEvent( "next", event );
2156					break;
2157				}
2158			},
2159			input: function( event ) {
2160				if ( suppressInput ) {
2161					suppressInput = false;
2162					event.preventDefault();
2163					return;
2164				}
2165				this._searchTimeout( event );
2166			},
2167			focus: function() {
2168				this.selectedItem = null;
2169				this.previous = this._value();
2170			},
2171			blur: function( event ) {
2172				if ( this.cancelBlur ) {
2173					delete this.cancelBlur;
2174					return;
2175				}
2176
2177				clearTimeout( this.searching );
2178				this.close( event );
2179				this._change( event );
2180			}
2181		});
2182
2183		this._initSource();
2184		this.menu = $( "<ul>" )
2185			.addClass( "ui-autocomplete ui-front" )
2186			.appendTo( this._appendTo() )
2187			.menu({
2188				// disable ARIA support, the live region takes care of that
2189				role: null
2190			})
2191			.hide()
2192			.menu( "instance" );
2193
2194		this._on( this.menu.element, {
2195			mousedown: function( event ) {
2196				// prevent moving focus out of the text field
2197				event.preventDefault();
2198
2199				// IE doesn't prevent moving focus even with event.preventDefault()
2200				// so we set a flag to know when we should ignore the blur event
2201				this.cancelBlur = true;
2202				this._delay(function() {
2203					delete this.cancelBlur;
2204				});
2205
2206				// clicking on the scrollbar causes focus to shift to the body
2207				// but we can't detect a mouseup or a click immediately afterward
2208				// so we have to track the next mousedown and close the menu if
2209				// the user clicks somewhere outside of the autocomplete
2210				var menuElement = this.menu.element[ 0 ];
2211				if ( !$( event.target ).closest( ".ui-menu-item" ).length ) {
2212					this._delay(function() {
2213						var that = this;
2214						this.document.one( "mousedown", function( event ) {
2215							if ( event.target !== that.element[ 0 ] &&
2216									event.target !== menuElement &&
2217									!$.contains( menuElement, event.target ) ) {
2218								that.close();
2219							}
2220						});
2221					});
2222				}
2223			},
2224			menufocus: function( event, ui ) {
2225				var label, item;
2226				// support: Firefox
2227				// Prevent accidental activation of menu items in Firefox (#7024 #9118)
2228				if ( this.isNewMenu ) {
2229					this.isNewMenu = false;
2230					if ( event.originalEvent && /^mouse/.test( event.originalEvent.type ) ) {
2231						this.menu.blur();
2232
2233						this.document.one( "mousemove", function() {
2234							$( event.target ).trigger( event.originalEvent );
2235						});
2236
2237						return;
2238					}
2239				}
2240
2241				item = ui.item.data( "ui-autocomplete-item" );
2242				if ( false !== this._trigger( "focus", event, { item: item } ) ) {
2243					// use value to match what will end up in the input, if it was a key event
2244					if ( event.originalEvent && /^key/.test( event.originalEvent.type ) ) {
2245						this._value( item.value );
2246					}
2247				}
2248
2249				// Announce the value in the liveRegion
2250				label = ui.item.attr( "aria-label" ) || item.value;
2251				if ( label && $.trim( label ).length ) {
2252					this.liveRegion.children().hide();
2253					$( "<div>" ).text( label ).appendTo( this.liveRegion );
2254				}
2255			},
2256			menuselect: function( event, ui ) {
2257				var item = ui.item.data( "ui-autocomplete-item" ),
2258					previous = this.previous;
2259
2260				// only trigger when focus was lost (click on menu)
2261				if ( this.element[ 0 ] !== this.document[ 0 ].activeElement ) {
2262					this.element.focus();
2263					this.previous = previous;
2264					// #6109 - IE triggers two focus events and the second
2265					// is asynchronous, so we need to reset the previous
2266					// term synchronously and asynchronously :-(
2267					this._delay(function() {
2268						this.previous = previous;
2269						this.selectedItem = item;
2270					});
2271				}
2272
2273				if ( false !== this._trigger( "select", event, { item: item } ) ) {
2274					this._value( item.value );
2275				}
2276				// reset the term after the select event
2277				// this allows custom select handling to work properly
2278				this.term = this._value();
2279
2280				this.close( event );
2281				this.selectedItem = item;
2282			}
2283		});
2284
2285		this.liveRegion = $( "<span>", {
2286				role: "status",
2287				"aria-live": "assertive",
2288				"aria-relevant": "additions"
2289			})
2290			.addClass( "ui-helper-hidden-accessible" )
2291			.appendTo( this.document[ 0 ].body );
2292
2293		// turning off autocomplete prevents the browser from remembering the
2294		// value when navigating through history, so we re-enable autocomplete
2295		// if the page is unloaded before the widget is destroyed. #7790
2296		this._on( this.window, {
2297			beforeunload: function() {
2298				this.element.removeAttr( "autocomplete" );
2299			}
2300		});
2301	},
2302
2303	_destroy: function() {
2304		clearTimeout( this.searching );
2305		this.element
2306			.removeClass( "ui-autocomplete-input" )
2307			.removeAttr( "autocomplete" );
2308		this.menu.element.remove();
2309		this.liveRegion.remove();
2310	},
2311
2312	_setOption: function( key, value ) {
2313		this._super( key, value );
2314		if ( key === "source" ) {
2315			this._initSource();
2316		}
2317		if ( key === "appendTo" ) {
2318			this.menu.element.appendTo( this._appendTo() );
2319		}
2320		if ( key === "disabled" && value && this.xhr ) {
2321			this.xhr.abort();
2322		}
2323	},
2324
2325	_appendTo: function() {
2326		var element = this.options.appendTo;
2327
2328		if ( element ) {
2329			element = element.jquery || element.nodeType ?
2330				$( element ) :
2331				this.document.find( element ).eq( 0 );
2332		}
2333
2334		if ( !element || !element[ 0 ] ) {
2335			element = this.element.closest( ".ui-front" );
2336		}
2337
2338		if ( !element.length ) {
2339			element = this.document[ 0 ].body;
2340		}
2341
2342		return element;
2343	},
2344
2345	_initSource: function() {
2346		var array, url,
2347			that = this;
2348		if ( $.isArray( this.options.source ) ) {
2349			array = this.options.source;
2350			this.source = function( request, response ) {
2351				response( $.ui.autocomplete.filter( array, request.term ) );
2352			};
2353		} else if ( typeof this.options.source === "string" ) {
2354			url = this.options.source;
2355			this.source = function( request, response ) {
2356				if ( that.xhr ) {
2357					that.xhr.abort();
2358				}
2359				that.xhr = $.ajax({
2360					url: url,
2361					data: request,
2362					dataType: "json",
2363					success: function( data ) {
2364						response( data );
2365					},
2366					error: function() {
2367						response([]);
2368					}
2369				});
2370			};
2371		} else {
2372			this.source = this.options.source;
2373		}
2374	},
2375
2376	_searchTimeout: function( event ) {
2377		clearTimeout( this.searching );
2378		this.searching = this._delay(function() {
2379
2380			// Search if the value has changed, or if the user retypes the same value (see #7434)
2381			var equalValues = this.term === this._value(),
2382				menuVisible = this.menu.element.is( ":visible" ),
2383				modifierKey = event.altKey || event.ctrlKey || event.metaKey || event.shiftKey;
2384
2385			if ( !equalValues || ( equalValues && !menuVisible && !modifierKey ) ) {
2386				this.selectedItem = null;
2387				this.search( null, event );
2388			}
2389		}, this.options.delay );
2390	},
2391
2392	search: function( value, event ) {
2393		value = value != null ? value : this._value();
2394
2395		// always save the actual value, not the one passed as an argument
2396		this.term = this._value();
2397
2398		if ( value.length < this.options.minLength ) {
2399			return this.close( event );
2400		}
2401
2402		if ( this._trigger( "search", event ) === false ) {
2403			return;
2404		}
2405
2406		return this._search( value );
2407	},
2408
2409	_search: function( value ) {
2410		this.pending++;
2411		this.element.addClass( "ui-autocomplete-loading" );
2412		this.cancelSearch = false;
2413
2414		this.source( { term: value }, this._response() );
2415	},
2416
2417	_response: function() {
2418		var index = ++this.requestIndex;
2419
2420		return $.proxy(function( content ) {
2421			if ( index === this.requestIndex ) {
2422				this.__response( content );
2423			}
2424
2425			this.pending--;
2426			if ( !this.pending ) {
2427				this.element.removeClass( "ui-autocomplete-loading" );
2428			}
2429		}, this );
2430	},
2431
2432	__response: function( content ) {
2433		if ( content ) {
2434			content = this._normalize( content );
2435		}
2436		this._trigger( "response", null, { content: content } );
2437		if ( !this.options.disabled && content && content.length && !this.cancelSearch ) {
2438			this._suggest( content );
2439			this._trigger( "open" );
2440		} else {
2441			// use ._close() instead of .close() so we don't cancel future searches
2442			this._close();
2443		}
2444	},
2445
2446	close: function( event ) {
2447		this.cancelSearch = true;
2448		this._close( event );
2449	},
2450
2451	_close: function( event ) {
2452		if ( this.menu.element.is( ":visible" ) ) {
2453			this.menu.element.hide();
2454			this.menu.blur();
2455			this.isNewMenu = true;
2456			this._trigger( "close", event );
2457		}
2458	},
2459
2460	_change: function( event ) {
2461		if ( this.previous !== this._value() ) {
2462			this._trigger( "change", event, { item: this.selectedItem } );
2463		}
2464	},
2465
2466	_normalize: function( items ) {
2467		// assume all items have the right format when the first item is complete
2468		if ( items.length && items[ 0 ].label && items[ 0 ].value ) {
2469			return items;
2470		}
2471		return $.map( items, function( item ) {
2472			if ( typeof item === "string" ) {
2473				return {
2474					label: item,
2475					value: item
2476				};
2477			}
2478			return $.extend( {}, item, {
2479				label: item.label || item.value,
2480				value: item.value || item.label
2481			});
2482		});
2483	},
2484
2485	_suggest: function( items ) {
2486		var ul = this.menu.element.empty();
2487		this._renderMenu( ul, items );
2488		this.isNewMenu = true;
2489		this.menu.refresh();
2490
2491		// size and position menu
2492		ul.show();
2493		this._resizeMenu();
2494		ul.position( $.extend({
2495			of: this.element
2496		}, this.options.position ) );
2497
2498		if ( this.options.autoFocus ) {
2499			this.menu.next();
2500		}
2501	},
2502
2503	_resizeMenu: function() {
2504		var ul = this.menu.element;
2505		ul.outerWidth( Math.max(
2506			// Firefox wraps long text (possibly a rounding bug)
2507			// so we add 1px to avoid the wrapping (#7513)
2508			ul.width( "" ).outerWidth() + 1,
2509			this.element.outerWidth()
2510		) );
2511	},
2512
2513	_renderMenu: function( ul, items ) {
2514		var that = this;
2515		$.each( items, function( index, item ) {
2516			that._renderItemData( ul, item );
2517		});
2518	},
2519
2520	_renderItemData: function( ul, item ) {
2521		return this._renderItem( ul, item ).data( "ui-autocomplete-item", item );
2522	},
2523
2524	_renderItem: function( ul, item ) {
2525		return $( "<li>" ).text( item.label ).appendTo( ul );
2526	},
2527
2528	_move: function( direction, event ) {
2529		if ( !this.menu.element.is( ":visible" ) ) {
2530			this.search( null, event );
2531			return;
2532		}
2533		if ( this.menu.isFirstItem() && /^previous/.test( direction ) ||
2534				this.menu.isLastItem() && /^next/.test( direction ) ) {
2535
2536			if ( !this.isMultiLine ) {
2537				this._value( this.term );
2538			}
2539
2540			this.menu.blur();
2541			return;
2542		}
2543		this.menu[ direction ]( event );
2544	},
2545
2546	widget: function() {
2547		return this.menu.element;
2548	},
2549
2550	_value: function() {
2551		return this.valueMethod.apply( this.element, arguments );
2552	},
2553
2554	_keyEvent: function( keyEvent, event ) {
2555		if ( !this.isMultiLine || this.menu.element.is( ":visible" ) ) {
2556			this._move( keyEvent, event );
2557
2558			// prevents moving cursor to beginning/end of the text field in some browsers
2559			event.preventDefault();
2560		}
2561	}
2562});
2563
2564$.extend( $.ui.autocomplete, {
2565	escapeRegex: function( value ) {
2566		return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
2567	},
2568	filter: function( array, term ) {
2569		var matcher = new RegExp( $.ui.autocomplete.escapeRegex( term ), "i" );
2570		return $.grep( array, function( value ) {
2571			return matcher.test( value.label || value.value || value );
2572		});
2573	}
2574});
2575
2576// live region extension, adding a `messages` option
2577// NOTE: This is an experimental API. We are still investigating
2578// a full solution for string manipulation and internationalization.
2579$.widget( "ui.autocomplete", $.ui.autocomplete, {
2580	options: {
2581		messages: {
2582			noResults: "No search results.",
2583			results: function( amount ) {
2584				return amount + ( amount > 1 ? " results are" : " result is" ) +
2585					" available, use up and down arrow keys to navigate.";
2586			}
2587		}
2588	},
2589
2590	__response: function( content ) {
2591		var message;
2592		this._superApply( arguments );
2593		if ( this.options.disabled || this.cancelSearch ) {
2594			return;
2595		}
2596		if ( content && content.length ) {
2597			message = this.options.messages.results( content.length );
2598		} else {
2599			message = this.options.messages.noResults;
2600		}
2601		this.liveRegion.children().hide();
2602		$( "<div>" ).text( message ).appendTo( this.liveRegion );
2603	}
2604});
2605
2606var autocomplete = $.ui.autocomplete;
2607
2608
2609
2610}));
2611