1/*! jQuery UI - v1.13.3 - 2024-04-26
  2* https://jqueryui.com
  3* Includes: widget.js, position.js, data.js, disable-selection.js, effect.js, effects/effect-blind.js, effects/effect-bounce.js, effects/effect-clip.js, effects/effect-drop.js, effects/effect-explode.js, effects/effect-fade.js, effects/effect-fold.js, effects/effect-highlight.js, effects/effect-puff.js, effects/effect-pulsate.js, effects/effect-scale.js, effects/effect-shake.js, effects/effect-size.js, effects/effect-slide.js, effects/effect-transfer.js, focusable.js, form-reset-mixin.js, jquery-patch.js, keycode.js, labels.js, scroll-parent.js, tabbable.js, unique-id.js, widgets/accordion.js, widgets/autocomplete.js, widgets/button.js, widgets/checkboxradio.js, widgets/controlgroup.js, widgets/datepicker.js, widgets/dialog.js, widgets/draggable.js, widgets/droppable.js, widgets/menu.js, widgets/mouse.js, widgets/progressbar.js, widgets/resizable.js, widgets/selectable.js, widgets/selectmenu.js, widgets/slider.js, widgets/sortable.js, widgets/spinner.js, widgets/tabs.js, widgets/tooltip.js
  4* Copyright jQuery Foundation and other contributors; Licensed MIT */
  5( function( factory ) {
  6	"use strict";
  7
  8	if ( typeof define === "function" && define.amd ) {
  9
 10		// AMD. Register as an anonymous module.
 11		define( [ "jquery" ], factory );
 12	} else {
 13
 14		// Browser globals
 15		factory( jQuery );
 16	}
 17} ( function( $ ) {
 18"use strict";
 19
 20// Source: version.js
 21$.ui = $.ui || {};
 22
 23$.ui.version = "1.13.3";
 24
 25// Source: data.js
 26/*!
 27 * jQuery UI :data 1.13.3
 28 * https://jqueryui.com
 29 *
 30 * Copyright OpenJS Foundation and other contributors
 31 * Released under the MIT license.
 32 * https://jquery.org/license
 33 */
 34
 35//>>label: :data Selector
 36//>>group: Core
 37//>>description: Selects elements which have data stored under the specified key.
 38//>>docs: https://api.jqueryui.com/data-selector/
 39
 40$.extend( $.expr.pseudos, {
 41	data: $.expr.createPseudo ?
 42		$.expr.createPseudo( function( dataName ) {
 43			return function( elem ) {
 44				return !!$.data( elem, dataName );
 45			};
 46		} ) :
 47
 48		// Support: jQuery <1.8
 49		function( elem, i, match ) {
 50			return !!$.data( elem, match[ 3 ] );
 51		}
 52} );
 53
 54// Source: disable-selection.js
 55/*!
 56 * jQuery UI Disable Selection 1.13.3
 57 * https://jqueryui.com
 58 *
 59 * Copyright OpenJS Foundation and other contributors
 60 * Released under the MIT license.
 61 * https://jquery.org/license
 62 */
 63
 64//>>label: disableSelection
 65//>>group: Core
 66//>>description: Disable selection of text content within the set of matched elements.
 67//>>docs: https://api.jqueryui.com/disableSelection/
 68
 69// This file is deprecated
 70$.fn.extend( {
 71	disableSelection: ( function() {
 72		var eventType = "onselectstart" in document.createElement( "div" ) ?
 73			"selectstart" :
 74			"mousedown";
 75
 76		return function() {
 77			return this.on( eventType + ".ui-disableSelection", function( event ) {
 78				event.preventDefault();
 79			} );
 80		};
 81	} )(),
 82
 83	enableSelection: function() {
 84		return this.off( ".ui-disableSelection" );
 85	}
 86} );
 87
 88// Source: focusable.js
 89/*!
 90 * jQuery UI Focusable 1.13.3
 91 * https://jqueryui.com
 92 *
 93 * Copyright OpenJS Foundation and other contributors
 94 * Released under the MIT license.
 95 * https://jquery.org/license
 96 */
 97
 98//>>label: :focusable Selector
 99//>>group: Core
100//>>description: Selects elements which can be focused.
101//>>docs: https://api.jqueryui.com/focusable-selector/
102
103// Selectors
104$.ui.focusable = function( element, hasTabindex ) {
105	var map, mapName, img, focusableIfVisible, fieldset,
106		nodeName = element.nodeName.toLowerCase();
107
108	if ( "area" === nodeName ) {
109		map = element.parentNode;
110		mapName = map.name;
111		if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
112			return false;
113		}
114		img = $( "img[usemap='#" + mapName + "']" );
115		return img.length > 0 && img.is( ":visible" );
116	}
117
118	if ( /^(input|select|textarea|button|object)$/.test( nodeName ) ) {
119		focusableIfVisible = !element.disabled;
120
121		if ( focusableIfVisible ) {
122
123			// Form controls within a disabled fieldset are disabled.
124			// However, controls within the fieldset's legend do not get disabled.
125			// Since controls generally aren't placed inside legends, we skip
126			// this portion of the check.
127			fieldset = $( element ).closest( "fieldset" )[ 0 ];
128			if ( fieldset ) {
129				focusableIfVisible = !fieldset.disabled;
130			}
131		}
132	} else if ( "a" === nodeName ) {
133		focusableIfVisible = element.href || hasTabindex;
134	} else {
135		focusableIfVisible = hasTabindex;
136	}
137
138	return focusableIfVisible && $( element ).is( ":visible" ) && visible( $( element ) );
139};
140
141// Support: IE 8 only
142// IE 8 doesn't resolve inherit to visible/hidden for computed values
143function visible( element ) {
144	var visibility = element.css( "visibility" );
145	while ( visibility === "inherit" ) {
146		element = element.parent();
147		visibility = element.css( "visibility" );
148	}
149	return visibility === "visible";
150}
151
152$.extend( $.expr.pseudos, {
153	focusable: function( element ) {
154		return $.ui.focusable( element, $.attr( element, "tabindex" ) != null );
155	}
156} );
157
158// Support: IE8 Only
159// IE8 does not support the form attribute and when it is supplied. It overwrites the form prop
160// with a string, so we need to find the proper form.
161$.fn._form = function() {
162	return typeof this[ 0 ].form === "string" ? this.closest( "form" ) : $( this[ 0 ].form );
163};
164
165// Source: form-reset-mixin.js
166/*!
167 * jQuery UI Form Reset Mixin 1.13.3
168 * https://jqueryui.com
169 *
170 * Copyright OpenJS Foundation and other contributors
171 * Released under the MIT license.
172 * https://jquery.org/license
173 */
174
175//>>label: Form Reset Mixin
176//>>group: Core
177//>>description: Refresh input widgets when their form is reset
178//>>docs: https://api.jqueryui.com/form-reset-mixin/
179
180$.ui.formResetMixin = {
181	_formResetHandler: function() {
182		var form = $( this );
183
184		// Wait for the form reset to actually happen before refreshing
185		setTimeout( function() {
186			var instances = form.data( "ui-form-reset-instances" );
187			$.each( instances, function() {
188				this.refresh();
189			} );
190		} );
191	},
192
193	_bindFormResetHandler: function() {
194		this.form = this.element._form();
195		if ( !this.form.length ) {
196			return;
197		}
198
199		var instances = this.form.data( "ui-form-reset-instances" ) || [];
200		if ( !instances.length ) {
201
202			// We don't use _on() here because we use a single event handler per form
203			this.form.on( "reset.ui-form-reset", this._formResetHandler );
204		}
205		instances.push( this );
206		this.form.data( "ui-form-reset-instances", instances );
207	},
208
209	_unbindFormResetHandler: function() {
210		if ( !this.form.length ) {
211			return;
212		}
213
214		var instances = this.form.data( "ui-form-reset-instances" );
215		instances.splice( $.inArray( this, instances ), 1 );
216		if ( instances.length ) {
217			this.form.data( "ui-form-reset-instances", instances );
218		} else {
219			this.form
220				.removeData( "ui-form-reset-instances" )
221				.off( "reset.ui-form-reset" );
222		}
223	}
224};
225
226// Source: ie.js
227// This file is deprecated
228$.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );
229
230// Source: jquery-patch.js
231/*!
232 * jQuery UI Support for jQuery core 1.8.x and newer 1.13.3
233 * https://jqueryui.com
234 *
235 * Copyright OpenJS Foundation and other contributors
236 * Released under the MIT license.
237 * https://jquery.org/license
238 *
239 */
240
241//>>label: jQuery 1.8+ Support
242//>>group: Core
243//>>description: Support version 1.8.x and newer of jQuery core
244
245// Support: jQuery 1.9.x or older
246// $.expr[ ":" ] is deprecated.
247if ( !$.expr.pseudos ) {
248	$.expr.pseudos = $.expr[ ":" ];
249}
250
251// Support: jQuery 1.11.x or older
252// $.unique has been renamed to $.uniqueSort
253if ( !$.uniqueSort ) {
254	$.uniqueSort = $.unique;
255}
256
257// Support: jQuery 2.2.x or older.
258// This method has been defined in jQuery 3.0.0.
259// Code from https://github.com/jquery/jquery/blob/e539bac79e666bba95bba86d690b4e609dca2286/src/selector/escapeSelector.js
260if ( !$.escapeSelector ) {
261
262	// CSS string/identifier serialization
263	// https://drafts.csswg.org/cssom/#common-serializing-idioms
264	var rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\x80-\uFFFF\w-]/g;
265
266	var fcssescape = function( ch, asCodePoint ) {
267		if ( asCodePoint ) {
268
269			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
270			if ( ch === "\0" ) {
271				return "\uFFFD";
272			}
273
274			// Control characters and (dependent upon position) numbers get escaped as code points
275			return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
276		}
277
278		// Other potentially-special ASCII characters get backslash-escaped
279		return "\\" + ch;
280	};
281
282	$.escapeSelector = function( sel ) {
283		return ( sel + "" ).replace( rcssescape, fcssescape );
284	};
285}
286
287// Support: jQuery 3.4.x or older
288// These methods have been defined in jQuery 3.5.0.
289if ( !$.fn.even || !$.fn.odd ) {
290	$.fn.extend( {
291		even: function() {
292			return this.filter( function( i ) {
293				return i % 2 === 0;
294			} );
295		},
296		odd: function() {
297			return this.filter( function( i ) {
298				return i % 2 === 1;
299			} );
300		}
301	} );
302}
303
304// Source: keycode.js
305/*!
306 * jQuery UI Keycode 1.13.3
307 * https://jqueryui.com
308 *
309 * Copyright OpenJS Foundation and other contributors
310 * Released under the MIT license.
311 * https://jquery.org/license
312 */
313
314//>>label: Keycode
315//>>group: Core
316//>>description: Provide keycodes as keynames
317//>>docs: https://api.jqueryui.com/jQuery.ui.keyCode/
318
319$.ui.keyCode = {
320	BACKSPACE: 8,
321	COMMA: 188,
322	DELETE: 46,
323	DOWN: 40,
324	END: 35,
325	ENTER: 13,
326	ESCAPE: 27,
327	HOME: 36,
328	LEFT: 37,
329	PAGE_DOWN: 34,
330	PAGE_UP: 33,
331	PERIOD: 190,
332	RIGHT: 39,
333	SPACE: 32,
334	TAB: 9,
335	UP: 38
336};
337
338// Source: labels.js
339/*!
340 * jQuery UI Labels 1.13.3
341 * https://jqueryui.com
342 *
343 * Copyright OpenJS Foundation and other contributors
344 * Released under the MIT license.
345 * https://jquery.org/license
346 */
347
348//>>label: labels
349//>>group: Core
350//>>description: Find all the labels associated with a given input
351//>>docs: https://api.jqueryui.com/labels/
352
353$.fn.labels = function() {
354	var ancestor, selector, id, labels, ancestors;
355
356	if ( !this.length ) {
357		return this.pushStack( [] );
358	}
359
360	// Check control.labels first
361	if ( this[ 0 ].labels && this[ 0 ].labels.length ) {
362		return this.pushStack( this[ 0 ].labels );
363	}
364
365	// Support: IE <= 11, FF <= 37, Android <= 2.3 only
366	// Above browsers do not support control.labels. Everything below is to support them
367	// as well as document fragments. control.labels does not work on document fragments
368	labels = this.eq( 0 ).parents( "label" );
369
370	// Look for the label based on the id
371	id = this.attr( "id" );
372	if ( id ) {
373
374		// We don't search against the document in case the element
375		// is disconnected from the DOM
376		ancestor = this.eq( 0 ).parents().last();
377
378		// Get a full set of top level ancestors
379		ancestors = ancestor.add( ancestor.length ? ancestor.siblings() : this.siblings() );
380
381		// Create a selector for the label based on the id
382		selector = "label[for='" + $.escapeSelector( id ) + "']";
383
384		labels = labels.add( ancestors.find( selector ).addBack( selector ) );
385
386	}
387
388	// Return whatever we have found for labels
389	return this.pushStack( labels );
390};
391
392// Source: plugin.js
393// $.ui.plugin is deprecated. Use $.widget() extensions instead.
394$.ui.plugin = {
395	add: function( module, option, set ) {
396		var i,
397			proto = $.ui[ module ].prototype;
398		for ( i in set ) {
399			proto.plugins[ i ] = proto.plugins[ i ] || [];
400			proto.plugins[ i ].push( [ option, set[ i ] ] );
401		}
402	},
403	call: function( instance, name, args, allowDisconnected ) {
404		var i,
405			set = instance.plugins[ name ];
406
407		if ( !set ) {
408			return;
409		}
410
411		if ( !allowDisconnected && ( !instance.element[ 0 ].parentNode ||
412				instance.element[ 0 ].parentNode.nodeType === 11 ) ) {
413			return;
414		}
415
416		for ( i = 0; i < set.length; i++ ) {
417			if ( instance.options[ set[ i ][ 0 ] ] ) {
418				set[ i ][ 1 ].apply( instance.element, args );
419			}
420		}
421	}
422};
423
424// Source: position.js
425/*!
426 * jQuery UI Position 1.13.3
427 * https://jqueryui.com
428 *
429 * Copyright OpenJS Foundation and other contributors
430 * Released under the MIT license.
431 * https://jquery.org/license
432 *
433 * https://api.jqueryui.com/position/
434 */
435
436//>>label: Position
437//>>group: Core
438//>>description: Positions elements relative to other elements.
439//>>docs: https://api.jqueryui.com/position/
440//>>demos: https://jqueryui.com/position/
441
442( function() {
443var cachedScrollbarWidth,
444	max = Math.max,
445	abs = Math.abs,
446	rhorizontal = /left|center|right/,
447	rvertical = /top|center|bottom/,
448	roffset = /[\+\-]\d+(\.[\d]+)?%?/,
449	rposition = /^\w+/,
450	rpercent = /%$/,
451	_position = $.fn.position;
452
453function getOffsets( offsets, width, height ) {
454	return [
455		parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
456		parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
457	];
458}
459
460function parseCss( element, property ) {
461	return parseInt( $.css( element, property ), 10 ) || 0;
462}
463
464function isWindow( obj ) {
465	return obj != null && obj === obj.window;
466}
467
468function getDimensions( elem ) {
469	var raw = elem[ 0 ];
470	if ( raw.nodeType === 9 ) {
471		return {
472			width: elem.width(),
473			height: elem.height(),
474			offset: { top: 0, left: 0 }
475		};
476	}
477	if ( isWindow( raw ) ) {
478		return {
479			width: elem.width(),
480			height: elem.height(),
481			offset: { top: elem.scrollTop(), left: elem.scrollLeft() }
482		};
483	}
484	if ( raw.preventDefault ) {
485		return {
486			width: 0,
487			height: 0,
488			offset: { top: raw.pageY, left: raw.pageX }
489		};
490	}
491	return {
492		width: elem.outerWidth(),
493		height: elem.outerHeight(),
494		offset: elem.offset()
495	};
496}
497
498$.position = {
499	scrollbarWidth: function() {
500		if ( cachedScrollbarWidth !== undefined ) {
501			return cachedScrollbarWidth;
502		}
503		var w1, w2,
504			div = $( "<div style=" +
505				"'display:block;position:absolute;width:200px;height:200px;overflow:hidden;'>" +
506				"<div style='height:300px;width:auto;'></div></div>" ),
507			innerDiv = div.children()[ 0 ];
508
509		$( "body" ).append( div );
510		w1 = innerDiv.offsetWidth;
511		div.css( "overflow", "scroll" );
512
513		w2 = innerDiv.offsetWidth;
514
515		if ( w1 === w2 ) {
516			w2 = div[ 0 ].clientWidth;
517		}
518
519		div.remove();
520
521		return ( cachedScrollbarWidth = w1 - w2 );
522	},
523	getScrollInfo: function( within ) {
524		var overflowX = within.isWindow || within.isDocument ? "" :
525				within.element.css( "overflow-x" ),
526			overflowY = within.isWindow || within.isDocument ? "" :
527				within.element.css( "overflow-y" ),
528			hasOverflowX = overflowX === "scroll" ||
529				( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ),
530			hasOverflowY = overflowY === "scroll" ||
531				( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight );
532		return {
533			width: hasOverflowY ? $.position.scrollbarWidth() : 0,
534			height: hasOverflowX ? $.position.scrollbarWidth() : 0
535		};
536	},
537	getWithinInfo: function( element ) {
538		var withinElement = $( element || window ),
539			isElemWindow = isWindow( withinElement[ 0 ] ),
540			isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9,
541			hasOffset = !isElemWindow && !isDocument;
542		return {
543			element: withinElement,
544			isWindow: isElemWindow,
545			isDocument: isDocument,
546			offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 },
547			scrollLeft: withinElement.scrollLeft(),
548			scrollTop: withinElement.scrollTop(),
549			width: withinElement.outerWidth(),
550			height: withinElement.outerHeight()
551		};
552	}
553};
554
555$.fn.position = function( options ) {
556	if ( !options || !options.of ) {
557		return _position.apply( this, arguments );
558	}
559
560	// Make a copy, we don't want to modify arguments
561	options = $.extend( {}, options );
562
563	var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,
564
565		// Make sure string options are treated as CSS selectors
566		target = typeof options.of === "string" ?
567			$( document ).find( options.of ) :
568			$( options.of ),
569
570		within = $.position.getWithinInfo( options.within ),
571		scrollInfo = $.position.getScrollInfo( within ),
572		collision = ( options.collision || "flip" ).split( " " ),
573		offsets = {};
574
575	dimensions = getDimensions( target );
576	if ( target[ 0 ].preventDefault ) {
577
578		// Force left top to allow flipping
579		options.at = "left top";
580	}
581	targetWidth = dimensions.width;
582	targetHeight = dimensions.height;
583	targetOffset = dimensions.offset;
584
585	// Clone to reuse original targetOffset later
586	basePosition = $.extend( {}, targetOffset );
587
588	// Force my and at to have valid horizontal and vertical positions
589	// if a value is missing or invalid, it will be converted to center
590	$.each( [ "my", "at" ], function() {
591		var pos = ( options[ this ] || "" ).split( " " ),
592			horizontalOffset,
593			verticalOffset;
594
595		if ( pos.length === 1 ) {
596			pos = rhorizontal.test( pos[ 0 ] ) ?
597				pos.concat( [ "center" ] ) :
598				rvertical.test( pos[ 0 ] ) ?
599					[ "center" ].concat( pos ) :
600					[ "center", "center" ];
601		}
602		pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
603		pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";
604
605		// Calculate offsets
606		horizontalOffset = roffset.exec( pos[ 0 ] );
607		verticalOffset = roffset.exec( pos[ 1 ] );
608		offsets[ this ] = [
609			horizontalOffset ? horizontalOffset[ 0 ] : 0,
610			verticalOffset ? verticalOffset[ 0 ] : 0
611		];
612
613		// Reduce to just the positions without the offsets
614		options[ this ] = [
615			rposition.exec( pos[ 0 ] )[ 0 ],
616			rposition.exec( pos[ 1 ] )[ 0 ]
617		];
618	} );
619
620	// Normalize collision option
621	if ( collision.length === 1 ) {
622		collision[ 1 ] = collision[ 0 ];
623	}
624
625	if ( options.at[ 0 ] === "right" ) {
626		basePosition.left += targetWidth;
627	} else if ( options.at[ 0 ] === "center" ) {
628		basePosition.left += targetWidth / 2;
629	}
630
631	if ( options.at[ 1 ] === "bottom" ) {
632		basePosition.top += targetHeight;
633	} else if ( options.at[ 1 ] === "center" ) {
634		basePosition.top += targetHeight / 2;
635	}
636
637	atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
638	basePosition.left += atOffset[ 0 ];
639	basePosition.top += atOffset[ 1 ];
640
641	return this.each( function() {
642		var collisionPosition, using,
643			elem = $( this ),
644			elemWidth = elem.outerWidth(),
645			elemHeight = elem.outerHeight(),
646			marginLeft = parseCss( this, "marginLeft" ),
647			marginTop = parseCss( this, "marginTop" ),
648			collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) +
649				scrollInfo.width,
650			collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) +
651				scrollInfo.height,
652			position = $.extend( {}, basePosition ),
653			myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );
654
655		if ( options.my[ 0 ] === "right" ) {
656			position.left -= elemWidth;
657		} else if ( options.my[ 0 ] === "center" ) {
658			position.left -= elemWidth / 2;
659		}
660
661		if ( options.my[ 1 ] === "bottom" ) {
662			position.top -= elemHeight;
663		} else if ( options.my[ 1 ] === "center" ) {
664			position.top -= elemHeight / 2;
665		}
666
667		position.left += myOffset[ 0 ];
668		position.top += myOffset[ 1 ];
669
670		collisionPosition = {
671			marginLeft: marginLeft,
672			marginTop: marginTop
673		};
674
675		$.each( [ "left", "top" ], function( i, dir ) {
676			if ( $.ui.position[ collision[ i ] ] ) {
677				$.ui.position[ collision[ i ] ][ dir ]( position, {
678					targetWidth: targetWidth,
679					targetHeight: targetHeight,
680					elemWidth: elemWidth,
681					elemHeight: elemHeight,
682					collisionPosition: collisionPosition,
683					collisionWidth: collisionWidth,
684					collisionHeight: collisionHeight,
685					offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
686					my: options.my,
687					at: options.at,
688					within: within,
689					elem: elem
690				} );
691			}
692		} );
693
694		if ( options.using ) {
695
696			// Adds feedback as second argument to using callback, if present
697			using = function( props ) {
698				var left = targetOffset.left - position.left,
699					right = left + targetWidth - elemWidth,
700					top = targetOffset.top - position.top,
701					bottom = top + targetHeight - elemHeight,
702					feedback = {
703						target: {
704							element: target,
705							left: targetOffset.left,
706							top: targetOffset.top,
707							width: targetWidth,
708							height: targetHeight
709						},
710						element: {
711							element: elem,
712							left: position.left,
713							top: position.top,
714							width: elemWidth,
715							height: elemHeight
716						},
717						horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
718						vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
719					};
720				if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
721					feedback.horizontal = "center";
722				}
723				if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
724					feedback.vertical = "middle";
725				}
726				if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
727					feedback.important = "horizontal";
728				} else {
729					feedback.important = "vertical";
730				}
731				options.using.call( this, props, feedback );
732			};
733		}
734
735		elem.offset( $.extend( position, { using: using } ) );
736	} );
737};
738
739$.ui.position = {
740	fit: {
741		left: function( position, data ) {
742			var within = data.within,
743				withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
744				outerWidth = within.width,
745				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
746				overLeft = withinOffset - collisionPosLeft,
747				overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
748				newOverRight;
749
750			// Element is wider than within
751			if ( data.collisionWidth > outerWidth ) {
752
753				// Element is initially over the left side of within
754				if ( overLeft > 0 && overRight <= 0 ) {
755					newOverRight = position.left + overLeft + data.collisionWidth - outerWidth -
756						withinOffset;
757					position.left += overLeft - newOverRight;
758
759				// Element is initially over right side of within
760				} else if ( overRight > 0 && overLeft <= 0 ) {
761					position.left = withinOffset;
762
763				// Element is initially over both left and right sides of within
764				} else {
765					if ( overLeft > overRight ) {
766						position.left = withinOffset + outerWidth - data.collisionWidth;
767					} else {
768						position.left = withinOffset;
769					}
770				}
771
772			// Too far left -> align with left edge
773			} else if ( overLeft > 0 ) {
774				position.left += overLeft;
775
776			// Too far right -> align with right edge
777			} else if ( overRight > 0 ) {
778				position.left -= overRight;
779
780			// Adjust based on position and margin
781			} else {
782				position.left = max( position.left - collisionPosLeft, position.left );
783			}
784		},
785		top: function( position, data ) {
786			var within = data.within,
787				withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
788				outerHeight = data.within.height,
789				collisionPosTop = position.top - data.collisionPosition.marginTop,
790				overTop = withinOffset - collisionPosTop,
791				overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
792				newOverBottom;
793
794			// Element is taller than within
795			if ( data.collisionHeight > outerHeight ) {
796
797				// Element is initially over the top of within
798				if ( overTop > 0 && overBottom <= 0 ) {
799					newOverBottom = position.top + overTop + data.collisionHeight - outerHeight -
800						withinOffset;
801					position.top += overTop - newOverBottom;
802
803				// Element is initially over bottom of within
804				} else if ( overBottom > 0 && overTop <= 0 ) {
805					position.top = withinOffset;
806
807				// Element is initially over both top and bottom of within
808				} else {
809					if ( overTop > overBottom ) {
810						position.top = withinOffset + outerHeight - data.collisionHeight;
811					} else {
812						position.top = withinOffset;
813					}
814				}
815
816			// Too far up -> align with top
817			} else if ( overTop > 0 ) {
818				position.top += overTop;
819
820			// Too far down -> align with bottom edge
821			} else if ( overBottom > 0 ) {
822				position.top -= overBottom;
823
824			// Adjust based on position and margin
825			} else {
826				position.top = max( position.top - collisionPosTop, position.top );
827			}
828		}
829	},
830	flip: {
831		left: function( position, data ) {
832			var within = data.within,
833				withinOffset = within.offset.left + within.scrollLeft,
834				outerWidth = within.width,
835				offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
836				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
837				overLeft = collisionPosLeft - offsetLeft,
838				overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
839				myOffset = data.my[ 0 ] === "left" ?
840					-data.elemWidth :
841					data.my[ 0 ] === "right" ?
842						data.elemWidth :
843						0,
844				atOffset = data.at[ 0 ] === "left" ?
845					data.targetWidth :
846					data.at[ 0 ] === "right" ?
847						-data.targetWidth :
848						0,
849				offset = -2 * data.offset[ 0 ],
850				newOverRight,
851				newOverLeft;
852
853			if ( overLeft < 0 ) {
854				newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth -
855					outerWidth - withinOffset;
856				if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
857					position.left += myOffset + atOffset + offset;
858				}
859			} else if ( overRight > 0 ) {
860				newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset +
861					atOffset + offset - offsetLeft;
862				if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
863					position.left += myOffset + atOffset + offset;
864				}
865			}
866		},
867		top: function( position, data ) {
868			var within = data.within,
869				withinOffset = within.offset.top + within.scrollTop,
870				outerHeight = within.height,
871				offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
872				collisionPosTop = position.top - data.collisionPosition.marginTop,
873				overTop = collisionPosTop - offsetTop,
874				overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
875				top = data.my[ 1 ] === "top",
876				myOffset = top ?
877					-data.elemHeight :
878					data.my[ 1 ] === "bottom" ?
879						data.elemHeight :
880						0,
881				atOffset = data.at[ 1 ] === "top" ?
882					data.targetHeight :
883					data.at[ 1 ] === "bottom" ?
884						-data.targetHeight :
885						0,
886				offset = -2 * data.offset[ 1 ],
887				newOverTop,
888				newOverBottom;
889			if ( overTop < 0 ) {
890				newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight -
891					outerHeight - withinOffset;
892				if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {
893					position.top += myOffset + atOffset + offset;
894				}
895			} else if ( overBottom > 0 ) {
896				newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset +
897					offset - offsetTop;
898				if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {
899					position.top += myOffset + atOffset + offset;
900				}
901			}
902		}
903	},
904	flipfit: {
905		left: function() {
906			$.ui.position.flip.left.apply( this, arguments );
907			$.ui.position.fit.left.apply( this, arguments );
908		},
909		top: function() {
910			$.ui.position.flip.top.apply( this, arguments );
911			$.ui.position.fit.top.apply( this, arguments );
912		}
913	}
914};
915
916} )();
917
918// Source: safe-active-element.js
919$.ui.safeActiveElement = function( document ) {
920	var activeElement;
921
922	// Support: IE 9 only
923	// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
924	try {
925		activeElement = document.activeElement;
926	} catch ( error ) {
927		activeElement = document.body;
928	}
929
930	// Support: IE 9 - 11 only
931	// IE may return null instead of an element
932	// Interestingly, this only seems to occur when NOT in an iframe
933	if ( !activeElement ) {
934		activeElement = document.body;
935	}
936
937	// Support: IE 11 only
938	// IE11 returns a seemingly empty object in some cases when accessing
939	// document.activeElement from an <iframe>
940	if ( !activeElement.nodeName ) {
941		activeElement = document.body;
942	}
943
944	return activeElement;
945};
946
947// Source: safe-blur.js
948$.ui.safeBlur = function( element ) {
949
950	// Support: IE9 - 10 only
951	// If the <body> is blurred, IE will switch windows, see #9420
952	if ( element && element.nodeName.toLowerCase() !== "body" ) {
953		$( element ).trigger( "blur" );
954	}
955};
956
957// Source: scroll-parent.js
958/*!
959 * jQuery UI Scroll Parent 1.13.3
960 * https://jqueryui.com
961 *
962 * Copyright OpenJS Foundation and other contributors
963 * Released under the MIT license.
964 * https://jquery.org/license
965 */
966
967//>>label: scrollParent
968//>>group: Core
969//>>description: Get the closest ancestor element that is scrollable.
970//>>docs: https://api.jqueryui.com/scrollParent/
971
972$.fn.scrollParent = function( includeHidden ) {
973	var position = this.css( "position" ),
974		excludeStaticParent = position === "absolute",
975		overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
976		scrollParent = this.parents().filter( function() {
977			var parent = $( this );
978			if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
979				return false;
980			}
981			return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) +
982				parent.css( "overflow-x" ) );
983		} ).eq( 0 );
984
985	return position === "fixed" || !scrollParent.length ?
986		$( this[ 0 ].ownerDocument || document ) :
987		scrollParent;
988};
989
990// Source: tabbable.js
991/*!
992 * jQuery UI Tabbable 1.13.3
993 * https://jqueryui.com
994 *
995 * Copyright OpenJS Foundation and other contributors
996 * Released under the MIT license.
997 * https://jquery.org/license
998 */
999
1000//>>label: :tabbable Selector
1001//>>group: Core
1002//>>description: Selects elements which can be tabbed to.
1003//>>docs: https://api.jqueryui.com/tabbable-selector/
1004
1005$.extend( $.expr.pseudos, {
1006	tabbable: function( element ) {
1007		var tabIndex = $.attr( element, "tabindex" ),
1008			hasTabindex = tabIndex != null;
1009		return ( !hasTabindex || tabIndex >= 0 ) && $.ui.focusable( element, hasTabindex );
1010	}
1011} );
1012
1013// Source: unique-id.js
1014/*!
1015 * jQuery UI Unique ID 1.13.3
1016 * https://jqueryui.com
1017 *
1018 * Copyright OpenJS Foundation and other contributors
1019 * Released under the MIT license.
1020 * https://jquery.org/license
1021 */
1022
1023//>>label: uniqueId
1024//>>group: Core
1025//>>description: Functions to generate and remove uniqueId's
1026//>>docs: https://api.jqueryui.com/uniqueId/
1027
1028$.fn.extend( {
1029	uniqueId: ( function() {
1030		var uuid = 0;
1031
1032		return function() {
1033			return this.each( function() {
1034				if ( !this.id ) {
1035					this.id = "ui-id-" + ( ++uuid );
1036				}
1037			} );
1038		};
1039	} )(),
1040
1041	removeUniqueId: function() {
1042		return this.each( function() {
1043			if ( /^ui-id-\d+$/.test( this.id ) ) {
1044				$( this ).removeAttr( "id" );
1045			}
1046		} );
1047	}
1048} );
1049
1050// Source: widget.js
1051/*!
1052 * jQuery UI Widget 1.13.3
1053 * https://jqueryui.com
1054 *
1055 * Copyright OpenJS Foundation and other contributors
1056 * Released under the MIT license.
1057 * https://jquery.org/license
1058 */
1059
1060//>>label: Widget
1061//>>group: Core
1062//>>description: Provides a factory for creating stateful widgets with a common API.
1063//>>docs: https://api.jqueryui.com/jQuery.widget/
1064//>>demos: https://jqueryui.com/widget/
1065
1066var widgetUuid = 0;
1067var widgetHasOwnProperty = Array.prototype.hasOwnProperty;
1068var widgetSlice = Array.prototype.slice;
1069
1070$.cleanData = ( function( orig ) {
1071	return function( elems ) {
1072		var events, elem, i;
1073		for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
1074
1075			// Only trigger remove when necessary to save time
1076			events = $._data( elem, "events" );
1077			if ( events && events.remove ) {
1078				$( elem ).triggerHandler( "remove" );
1079			}
1080		}
1081		orig( elems );
1082	};
1083} )( $.cleanData );
1084
1085$.widget = function( name, base, prototype ) {
1086	var existingConstructor, constructor, basePrototype;
1087
1088	// ProxiedPrototype allows the provided prototype to remain unmodified
1089	// so that it can be used as a mixin for multiple widgets (#8876)
1090	var proxiedPrototype = {};
1091
1092	var namespace = name.split( "." )[ 0 ];
1093	name = name.split( "." )[ 1 ];
1094	var fullName = namespace + "-" + name;
1095
1096	if ( !prototype ) {
1097		prototype = base;
1098		base = $.Widget;
1099	}
1100
1101	if ( Array.isArray( prototype ) ) {
1102		prototype = $.extend.apply( null, [ {} ].concat( prototype ) );
1103	}
1104
1105	// Create selector for plugin
1106	$.expr.pseudos[ fullName.toLowerCase() ] = function( elem ) {
1107		return !!$.data( elem, fullName );
1108	};
1109
1110	$[ namespace ] = $[ namespace ] || {};
1111	existingConstructor = $[ namespace ][ name ];
1112	constructor = $[ namespace ][ name ] = function( options, element ) {
1113
1114		// Allow instantiation without "new" keyword
1115		if ( !this || !this._createWidget ) {
1116			return new constructor( options, element );
1117		}
1118
1119		// Allow instantiation without initializing for simple inheritance
1120		// must use "new" keyword (the code above always passes args)
1121		if ( arguments.length ) {
1122			this._createWidget( options, element );
1123		}
1124	};
1125
1126	// Extend with the existing constructor to carry over any static properties
1127	$.extend( constructor, existingConstructor, {
1128		version: prototype.version,
1129
1130		// Copy the object used to create the prototype in case we need to
1131		// redefine the widget later
1132		_proto: $.extend( {}, prototype ),
1133
1134		// Track widgets that inherit from this widget in case this widget is
1135		// redefined after a widget inherits from it
1136		_childConstructors: []
1137	} );
1138
1139	basePrototype = new base();
1140
1141	// We need to make the options hash a property directly on the new instance
1142	// otherwise we'll modify the options hash on the prototype that we're
1143	// inheriting from
1144	basePrototype.options = $.widget.extend( {}, basePrototype.options );
1145	$.each( prototype, function( prop, value ) {
1146		if ( typeof value !== "function" ) {
1147			proxiedPrototype[ prop ] = value;
1148			return;
1149		}
1150		proxiedPrototype[ prop ] = ( function() {
1151			function _super() {
1152				return base.prototype[ prop ].apply( this, arguments );
1153			}
1154
1155			function _superApply( args ) {
1156				return base.prototype[ prop ].apply( this, args );
1157			}
1158
1159			return function() {
1160				var __super = this._super;
1161				var __superApply = this._superApply;
1162				var returnValue;
1163
1164				this._super = _super;
1165				this._superApply = _superApply;
1166
1167				returnValue = value.apply( this, arguments );
1168
1169				this._super = __super;
1170				this._superApply = __superApply;
1171
1172				return returnValue;
1173			};
1174		} )();
1175	} );
1176	constructor.prototype = $.widget.extend( basePrototype, {
1177
1178		// TODO: remove support for widgetEventPrefix
1179		// always use the name + a colon as the prefix, e.g., draggable:start
1180		// don't prefix for widgets that aren't DOM-based
1181		widgetEventPrefix: existingConstructor ? ( basePrototype.widgetEventPrefix || name ) : name
1182	}, proxiedPrototype, {
1183		constructor: constructor,
1184		namespace: namespace,
1185		widgetName: name,
1186		widgetFullName: fullName
1187	} );
1188
1189	// If this widget is being redefined then we need to find all widgets that
1190	// are inheriting from it and redefine all of them so that they inherit from
1191	// the new version of this widget. We're essentially trying to replace one
1192	// level in the prototype chain.
1193	if ( existingConstructor ) {
1194		$.each( existingConstructor._childConstructors, function( i, child ) {
1195			var childPrototype = child.prototype;
1196
1197			// Redefine the child widget using the same prototype that was
1198			// originally used, but inherit from the new version of the base
1199			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor,
1200				child._proto );
1201		} );
1202
1203		// Remove the list of existing child constructors from the old constructor
1204		// so the old child constructors can be garbage collected
1205		delete existingConstructor._childConstructors;
1206	} else {
1207		base._childConstructors.push( constructor );
1208	}
1209
1210	$.widget.bridge( name, constructor );
1211
1212	return constructor;
1213};
1214
1215$.widget.extend = function( target ) {
1216	var input = widgetSlice.call( arguments, 1 );
1217	var inputIndex = 0;
1218	var inputLength = input.length;
1219	var key;
1220	var value;
1221
1222	for ( ; inputIndex < inputLength; inputIndex++ ) {
1223		for ( key in input[ inputIndex ] ) {
1224			value = input[ inputIndex ][ key ];
1225			if ( widgetHasOwnProperty.call( input[ inputIndex ], key ) && value !== undefined ) {
1226
1227				// Clone objects
1228				if ( $.isPlainObject( value ) ) {
1229					target[ key ] = $.isPlainObject( target[ key ] ) ?
1230						$.widget.extend( {}, target[ key ], value ) :
1231
1232						// Don't extend strings, arrays, etc. with objects
1233						$.widget.extend( {}, value );
1234
1235				// Copy everything else by reference
1236				} else {
1237					target[ key ] = value;
1238				}
1239			}
1240		}
1241	}
1242	return target;
1243};
1244
1245$.widget.bridge = function( name, object ) {
1246	var fullName = object.prototype.widgetFullName || name;
1247	$.fn[ name ] = function( options ) {
1248		var isMethodCall = typeof options === "string";
1249		var args = widgetSlice.call( arguments, 1 );
1250		var returnValue = this;
1251
1252		if ( isMethodCall ) {
1253
1254			// If this is an empty collection, we need to have the instance method
1255			// return undefined instead of the jQuery instance
1256			if ( !this.length && options === "instance" ) {
1257				returnValue = undefined;
1258			} else {
1259				this.each( function() {
1260					var methodValue;
1261					var instance = $.data( this, fullName );
1262
1263					if ( options === "instance" ) {
1264						returnValue = instance;
1265						return false;
1266					}
1267
1268					if ( !instance ) {
1269						return $.error( "cannot call methods on " + name +
1270							" prior to initialization; " +
1271							"attempted to call method '" + options + "'" );
1272					}
1273
1274					if ( typeof instance[ options ] !== "function" ||
1275						options.charAt( 0 ) === "_" ) {
1276						return $.error( "no such method '" + options + "' for " + name +
1277							" widget instance" );
1278					}
1279
1280					methodValue = instance[ options ].apply( instance, args );
1281
1282					if ( methodValue !== instance && methodValue !== undefined ) {
1283						returnValue = methodValue && methodValue.jquery ?
1284							returnValue.pushStack( methodValue.get() ) :
1285							methodValue;
1286						return false;
1287					}
1288				} );
1289			}
1290		} else {
1291
1292			// Allow multiple hashes to be passed on init
1293			if ( args.length ) {
1294				options = $.widget.extend.apply( null, [ options ].concat( args ) );
1295			}
1296
1297			this.each( function() {
1298				var instance = $.data( this, fullName );
1299				if ( instance ) {
1300					instance.option( options || {} );
1301					if ( instance._init ) {
1302						instance._init();
1303					}
1304				} else {
1305					$.data( this, fullName, new object( options, this ) );
1306				}
1307			} );
1308		}
1309
1310		return returnValue;
1311	};
1312};
1313
1314$.Widget = function( /* options, element */ ) {};
1315$.Widget._childConstructors = [];
1316
1317$.Widget.prototype = {
1318	widgetName: "widget",
1319	widgetEventPrefix: "",
1320	defaultElement: "<div>",
1321
1322	options: {
1323		classes: {},
1324		disabled: false,
1325
1326		// Callbacks
1327		create: null
1328	},
1329
1330	_createWidget: function( options, element ) {
1331		element = $( element || this.defaultElement || this )[ 0 ];
1332		this.element = $( element );
1333		this.uuid = widgetUuid++;
1334		this.eventNamespace = "." + this.widgetName + this.uuid;
1335
1336		this.bindings = $();
1337		this.hoverable = $();
1338		this.focusable = $();
1339		this.classesElementLookup = {};
1340
1341		if ( element !== this ) {
1342			$.data( element, this.widgetFullName, this );
1343			this._on( true, this.element, {
1344				remove: function( event ) {
1345					if ( event.target === element ) {
1346						this.destroy();
1347					}
1348				}
1349			} );
1350			this.document = $( element.style ?
1351
1352				// Element within the document
1353				element.ownerDocument :
1354
1355				// Element is window or document
1356				element.document || element );
1357			this.window = $( this.document[ 0 ].defaultView || this.document[ 0 ].parentWindow );
1358		}
1359
1360		this.options = $.widget.extend( {},
1361			this.options,
1362			this._getCreateOptions(),
1363			options );
1364
1365		this._create();
1366
1367		if ( this.options.disabled ) {
1368			this._setOptionDisabled( this.options.disabled );
1369		}
1370
1371		this._trigger( "create", null, this._getCreateEventData() );
1372		this._init();
1373	},
1374
1375	_getCreateOptions: function() {
1376		return {};
1377	},
1378
1379	_getCreateEventData: $.noop,
1380
1381	_create: $.noop,
1382
1383	_init: $.noop,
1384
1385	destroy: function() {
1386		var that = this;
1387
1388		this._destroy();
1389		$.each( this.classesElementLookup, function( key, value ) {
1390			that._removeClass( value, key );
1391		} );
1392
1393		// We can probably remove the unbind calls in 2.0
1394		// all event bindings should go through this._on()
1395		this.element
1396			.off( this.eventNamespace )
1397			.removeData( this.widgetFullName );
1398		this.widget()
1399			.off( this.eventNamespace )
1400			.removeAttr( "aria-disabled" );
1401
1402		// Clean up events and states
1403		this.bindings.off( this.eventNamespace );
1404	},
1405
1406	_destroy: $.noop,
1407
1408	widget: function() {
1409		return this.element;
1410	},
1411
1412	option: function( key, value ) {
1413		var options = key;
1414		var parts;
1415		var curOption;
1416		var i;
1417
1418		if ( arguments.length === 0 ) {
1419
1420			// Don't return a reference to the internal hash
1421			return $.widget.extend( {}, this.options );
1422		}
1423
1424		if ( typeof key === "string" ) {
1425
1426			// Handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
1427			options = {};
1428			parts = key.split( "." );
1429			key = parts.shift();
1430			if ( parts.length ) {
1431				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
1432				for ( i = 0; i < parts.length - 1; i++ ) {
1433					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
1434					curOption = curOption[ parts[ i ] ];
1435				}
1436				key = parts.pop();
1437				if ( arguments.length === 1 ) {
1438					return curOption[ key ] === undefined ? null : curOption[ key ];
1439				}
1440				curOption[ key ] = value;
1441			} else {
1442				if ( arguments.length === 1 ) {
1443					return this.options[ key ] === undefined ? null : this.options[ key ];
1444				}
1445				options[ key ] = value;
1446			}
1447		}
1448
1449		this._setOptions( options );
1450
1451		return this;
1452	},
1453
1454	_setOptions: function( options ) {
1455		var key;
1456
1457		for ( key in options ) {
1458			this._setOption( key, options[ key ] );
1459		}
1460
1461		return this;
1462	},
1463
1464	_setOption: function( key, value ) {
1465		if ( key === "classes" ) {
1466			this._setOptionClasses( value );
1467		}
1468
1469		this.options[ key ] = value;
1470
1471		if ( key === "disabled" ) {
1472			this._setOptionDisabled( value );
1473		}
1474
1475		return this;
1476	},
1477
1478	_setOptionClasses: function( value ) {
1479		var classKey, elements, currentElements;
1480
1481		for ( classKey in value ) {
1482			currentElements = this.classesElementLookup[ classKey ];
1483			if ( value[ classKey ] === this.options.classes[ classKey ] ||
1484					!currentElements ||
1485					!currentElements.length ) {
1486				continue;
1487			}
1488
1489			// We are doing this to create a new jQuery object because the _removeClass() call
1490			// on the next line is going to destroy the reference to the current elements being
1491			// tracked. We need to save a copy of this collection so that we can add the new classes
1492			// below.
1493			elements = $( currentElements.get() );
1494			this._removeClass( currentElements, classKey );
1495
1496			// We don't use _addClass() here, because that uses this.options.classes
1497			// for generating the string of classes. We want to use the value passed in from
1498			// _setOption(), this is the new value of the classes option which was passed to
1499			// _setOption(). We pass this value directly to _classes().
1500			elements.addClass( this._classes( {
1501				element: elements,
1502				keys: classKey,
1503				classes: value,
1504				add: true
1505			} ) );
1506		}
1507	},
1508
1509	_setOptionDisabled: function( value ) {
1510		this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value );
1511
1512		// If the widget is becoming disabled, then nothing is interactive
1513		if ( value ) {
1514			this._removeClass( this.hoverable, null, "ui-state-hover" );
1515			this._removeClass( this.focusable, null, "ui-state-focus" );
1516		}
1517	},
1518
1519	enable: function() {
1520		return this._setOptions( { disabled: false } );
1521	},
1522
1523	disable: function() {
1524		return this._setOptions( { disabled: true } );
1525	},
1526
1527	_classes: function( options ) {
1528		var full = [];
1529		var that = this;
1530
1531		options = $.extend( {
1532			element: this.element,
1533			classes: this.options.classes || {}
1534		}, options );
1535
1536		function bindRemoveEvent() {
1537			var nodesToBind = [];
1538
1539			options.element.each( function( _, element ) {
1540				var isTracked = $.map( that.classesElementLookup, function( elements ) {
1541					return elements;
1542				} )
1543					.some( function( elements ) {
1544						return elements.is( element );
1545					} );
1546
1547				if ( !isTracked ) {
1548					nodesToBind.push( element );
1549				}
1550			} );
1551
1552			that._on( $( nodesToBind ), {
1553				remove: "_untrackClassesElement"
1554			} );
1555		}
1556
1557		function processClassString( classes, checkOption ) {
1558			var current, i;
1559			for ( i = 0; i < classes.length; i++ ) {
1560				current = that.classesElementLookup[ classes[ i ] ] || $();
1561				if ( options.add ) {
1562					bindRemoveEvent();
1563					current = $( $.uniqueSort( current.get().concat( options.element.get() ) ) );
1564				} else {
1565					current = $( current.not( options.element ).get() );
1566				}
1567				that.classesElementLookup[ classes[ i ] ] = current;
1568				full.push( classes[ i ] );
1569				if ( checkOption && options.classes[ classes[ i ] ] ) {
1570					full.push( options.classes[ classes[ i ] ] );
1571				}
1572			}
1573		}
1574
1575		if ( options.keys ) {
1576			processClassString( options.keys.match( /\S+/g ) || [], true );
1577		}
1578		if ( options.extra ) {
1579			processClassString( options.extra.match( /\S+/g ) || [] );
1580		}
1581
1582		return full.join( " " );
1583	},
1584
1585	_untrackClassesElement: function( event ) {
1586		var that = this;
1587		$.each( that.classesElementLookup, function( key, value ) {
1588			if ( $.inArray( event.target, value ) !== -1 ) {
1589				that.classesElementLookup[ key ] = $( value.not( event.target ).get() );
1590			}
1591		} );
1592
1593		this._off( $( event.target ) );
1594	},
1595
1596	_removeClass: function( element, keys, extra ) {
1597		return this._toggleClass( element, keys, extra, false );
1598	},
1599
1600	_addClass: function( element, keys, extra ) {
1601		return this._toggleClass( element, keys, extra, true );
1602	},
1603
1604	_toggleClass: function( element, keys, extra, add ) {
1605		add = ( typeof add === "boolean" ) ? add : extra;
1606		var shift = ( typeof element === "string" || element === null ),
1607			options = {
1608				extra: shift ? keys : extra,
1609				keys: shift ? element : keys,
1610				element: shift ? this.element : element,
1611				add: add
1612			};
1613		options.element.toggleClass( this._classes( options ), add );
1614		return this;
1615	},
1616
1617	_on: function( suppressDisabledCheck, element, handlers ) {
1618		var delegateElement;
1619		var instance = this;
1620
1621		// No suppressDisabledCheck flag, shuffle arguments
1622		if ( typeof suppressDisabledCheck !== "boolean" ) {
1623			handlers = element;
1624			element = suppressDisabledCheck;
1625			suppressDisabledCheck = false;
1626		}
1627
1628		// No element argument, shuffle and use this.element
1629		if ( !handlers ) {
1630			handlers = element;
1631			element = this.element;
1632			delegateElement = this.widget();
1633		} else {
1634			element = delegateElement = $( element );
1635			this.bindings = this.bindings.add( element );
1636		}
1637
1638		$.each( handlers, function( event, handler ) {
1639			function handlerProxy() {
1640
1641				// Allow widgets to customize the disabled handling
1642				// - disabled as an array instead of boolean
1643				// - disabled class as method for disabling individual parts
1644				if ( !suppressDisabledCheck &&
1645						( instance.options.disabled === true ||
1646						$( this ).hasClass( "ui-state-disabled" ) ) ) {
1647					return;
1648				}
1649				return ( typeof handler === "string" ? instance[ handler ] : handler )
1650					.apply( instance, arguments );
1651			}
1652
1653			// Copy the guid so direct unbinding works
1654			if ( typeof handler !== "string" ) {
1655				handlerProxy.guid = handler.guid =
1656					handler.guid || handlerProxy.guid || $.guid++;
1657			}
1658
1659			var match = event.match( /^([\w:-]*)\s*(.*)$/ );
1660			var eventName = match[ 1 ] + instance.eventNamespace;
1661			var selector = match[ 2 ];
1662
1663			if ( selector ) {
1664				delegateElement.on( eventName, selector, handlerProxy );
1665			} else {
1666				element.on( eventName, handlerProxy );
1667			}
1668		} );
1669	},
1670
1671	_off: function( element, eventName ) {
1672		eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) +
1673			this.eventNamespace;
1674		element.off( eventName );
1675
1676		// Clear the stack to avoid memory leaks (#10056)
1677		this.bindings = $( this.bindings.not( element ).get() );
1678		this.focusable = $( this.focusable.not( element ).get() );
1679		this.hoverable = $( this.hoverable.not( element ).get() );
1680	},
1681
1682	_delay: function( handler, delay ) {
1683		function handlerProxy() {
1684			return ( typeof handler === "string" ? instance[ handler ] : handler )
1685				.apply( instance, arguments );
1686		}
1687		var instance = this;
1688		return setTimeout( handlerProxy, delay || 0 );
1689	},
1690
1691	_hoverable: function( element ) {
1692		this.hoverable = this.hoverable.add( element );
1693		this._on( element, {
1694			mouseenter: function( event ) {
1695				this._addClass( $( event.currentTarget ), null, "ui-state-hover" );
1696			},
1697			mouseleave: function( event ) {
1698				this._removeClass( $( event.currentTarget ), null, "ui-state-hover" );
1699			}
1700		} );
1701	},
1702
1703	_focusable: function( element ) {
1704		this.focusable = this.focusable.add( element );
1705		this._on( element, {
1706			focusin: function( event ) {
1707				this._addClass( $( event.currentTarget ), null, "ui-state-focus" );
1708			},
1709			focusout: function( event ) {
1710				this._removeClass( $( event.currentTarget ), null, "ui-state-focus" );
1711			}
1712		} );
1713	},
1714
1715	_trigger: function( type, event, data ) {
1716		var prop, orig;
1717		var callback = this.options[ type ];
1718
1719		data = data || {};
1720		event = $.Event( event );
1721		event.type = ( type === this.widgetEventPrefix ?
1722			type :
1723			this.widgetEventPrefix + type ).toLowerCase();
1724
1725		// The original event may come from any element
1726		// so we need to reset the target on the new event
1727		event.target = this.element[ 0 ];
1728
1729		// Copy original event properties over to the new event
1730		orig = event.originalEvent;
1731		if ( orig ) {
1732			for ( prop in orig ) {
1733				if ( !( prop in event ) ) {
1734					event[ prop ] = orig[ prop ];
1735				}
1736			}
1737		}
1738
1739		this.element.trigger( event, data );
1740		return !( typeof callback === "function" &&
1741			callback.apply( this.element[ 0 ], [ event ].concat( data ) ) === false ||
1742			event.isDefaultPrevented() );
1743	}
1744};
1745
1746$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
1747	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
1748		if ( typeof options === "string" ) {
1749			options = { effect: options };
1750		}
1751
1752		var hasOptions;
1753		var effectName = !options ?
1754			method :
1755			options === true || typeof options === "number" ?
1756				defaultEffect :
1757				options.effect || defaultEffect;
1758
1759		options = options || {};
1760		if ( typeof options === "number" ) {
1761			options = { duration: options };
1762		} else if ( options === true ) {
1763			options = {};
1764		}
1765
1766		hasOptions = !$.isEmptyObject( options );
1767		options.complete = callback;
1768
1769		if ( options.delay ) {
1770			element.delay( options.delay );
1771		}
1772
1773		if ( hasOptions && $.effects && $.effects.effect[ effectName ] ) {
1774			element[ method ]( options );
1775		} else if ( effectName !== method && element[ effectName ] ) {
1776			element[ effectName ]( options.duration, options.easing, callback );
1777		} else {
1778			element.queue( function( next ) {
1779				$( this )[ method ]();
1780				if ( callback ) {
1781					callback.call( element[ 0 ] );
1782				}
1783				next();
1784			} );
1785		}
1786	};
1787} );
1788
1789
1790} ) );
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