minor tweaks.
[sgn.git] / js / jqueryui / jquery.ui.tabs.js
blob264bb45d00733d9a3133309ad870a5550d0cfc5a
1 /*
2  * jquery UI Tabs 1.8.4
3  *
4  * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
5  * Dual licensed under the MIT or GPL Version 2 licenses.
6  * http://jquery.org/license
7  *
8  * http://docs.jquery.com/UI/Tabs
9  *
10  * Depends:
11  *      jquery.ui.core.js
12  *      jquery.ui.widget.js
13  */
14 (function( $, undefined ) {
16 var tabId = 0,
17         listId = 0;
19 function getNextTabId() {
20         return ++tabId;
23 function getNextListId() {
24         return ++listId;
27 $.widget( "ui.tabs", {
28         options: {
29                 add: null,
30                 ajaxOptions: null,
31                 cache: false,
32                 cookie: null, // e.g. { expires: 7, path: '/', domain: 'jquery.com', secure: true }
33                 collapsible: false,
34                 disable: null,
35                 disabled: [],
36                 enable: null,
37                 event: "click",
38                 fx: null, // e.g. { height: 'toggle', opacity: 'toggle', duration: 200 }
39                 idPrefix: "ui-tabs-",
40                 load: null,
41                 panelTemplate: "<div></div>",
42                 remove: null,
43                 select: null,
44                 show: null,
45                 spinner: "<em>Loading&#8230;</em>",
46                 tabTemplate: "<li><a href='#{href}'><span>#{label}</span></a></li>"
47         },
49         _create: function() {
50                 this._tabify( true );
51         },
53         _setOption: function( key, value ) {
54                 if ( key == "selected" ) {
55                         if (this.options.collapsible && value == this.options.selected ) {
56                                 return;
57                         }
58                         this.select( value );
59                 } else {
60                         this.options[ key ] = value;
61                         this._tabify();
62                 }
63         },
65         _tabId: function( a ) {
66                 return a.title && a.title.replace( /\s/g, "_" ).replace( /[^A-Za-z0-9\-_:\.]/g, "" ) ||
67                         this.options.idPrefix + getNextTabId();
68         },
70         _sanitizeSelector: function( hash ) {
71                 // we need this because an id may contain a ":"
72                 return hash.replace( /:/g, "\\:" );
73         },
75         _cookie: function() {
76                 var cookie = this.cookie ||
77                         ( this.cookie = this.options.cookie.name || "ui-tabs-" + getNextListId() );
78                 return $.cookie.apply( null, [ cookie ].concat( $.makeArray( arguments ) ) );
79         },
81         _ui: function( tab, panel ) {
82                 return {
83                         tab: tab,
84                         panel: panel,
85                         index: this.anchors.index( tab )
86                 };
87         },
89         _cleanup: function() {
90                 // restore all former loading tabs labels
91                 this.lis.filter( ".ui-state-processing" )
92                         .removeClass( "ui-state-processing" )
93                         .find( "span:data(label.tabs)" )
94                                 .each(function() {
95                                         var el = $( this );
96                                         el.html( el.data( "label.tabs" ) ).removeData( "label.tabs" );
97                                 });
98         },
100         _tabify: function( init ) {
101                 var self = this,
102                         o = this.options,
103                         fragmentId = /^#.+/; // Safari 2 reports '#' for an empty hash
105                 this.list = this.element.find( "ol,ul" ).eq( 0 );
106                 this.lis = $( "li:has(a[href])", this.list );
107                 this.anchors = this.lis.map(function() {
108                         return $( "a", this )[ 0 ];
109                 });
110                 this.panels = $( [] );
112                 this.anchors.each(function( i, a ) {
113                         var href = $( a ).attr( "href" );
114                         // For dynamically created HTML that contains a hash as href IE < 8 expands
115                         // such href to the full page url with hash and then misinterprets tab as ajax.
116                         // Same consideration applies for an added tab with a fragment identifier
117                         // since a[href=#fragment-identifier] does unexpectedly not match.
118                         // Thus normalize href attribute...
119                         var hrefBase = href.split( "#" )[ 0 ],
120                                 baseEl;
121                         if ( hrefBase && ( hrefBase === location.toString().split( "#" )[ 0 ] ||
122                                         ( baseEl = $( "base" )[ 0 ]) && hrefBase === baseEl.href ) ) {
123                                 href = a.hash;
124                                 a.href = href;
125                         }
127                         // inline tab
128                         if ( fragmentId.test( href ) ) {
129                                 self.panels = self.panels.add( self._sanitizeSelector( href ) );
130                         // remote tab
131                         // prevent loading the page itself if href is just "#"
132                         } else if ( href !== "#" ) {
133                                 // required for restore on destroy
134                                 $.data( a, "href.tabs", href );
136                                 // TODO until #3808 is fixed strip fragment identifier from url
137                                 // (IE fails to load from such url)
138                                 $.data( a, "load.tabs", href.replace( /#.*$/, "" ) );
140                                 var id = self._tabId( a );
141                                 a.href = "#" + id;
142                                 var $panel = $( "#" + id );
143                                 if ( !$panel.length ) {
144                                         $panel = $( o.panelTemplate )
145                                                 .attr( "id", id )
146                                                 .addClass( "ui-tabs-panel ui-widget-content ui-corner-bottom" )
147                                                 .insertAfter( self.panels[ i - 1 ] || self.list );
148                                         $panel.data( "destroy.tabs", true );
149                                 }
150                                 self.panels = self.panels.add( $panel );
151                         // invalid tab href
152                         } else {
153                                 o.disabled.push( i );
154                         }
155                 });
157                 // initialization from scratch
158                 if ( init ) {
159                         // attach necessary classes for styling
160                         this.element.addClass( "ui-tabs ui-widget ui-widget-content ui-corner-all" );
161                         this.list.addClass( "ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all" );
162                         this.lis.addClass( "ui-state-default ui-corner-top" );
163                         this.panels.addClass( "ui-tabs-panel ui-widget-content ui-corner-bottom" );
165                         // Selected tab
166                         // use "selected" option or try to retrieve:
167                         // 1. from fragment identifier in url
168                         // 2. from cookie
169                         // 3. from selected class attribute on <li>
170                         if ( o.selected === undefined ) {
171                                 if ( location.hash ) {
172                                         this.anchors.each(function( i, a ) {
173                                                 if ( a.hash == location.hash ) {
174                                                         o.selected = i;
175                                                         return false;
176                                                 }
177                                         });
178                                 }
179                                 if ( typeof o.selected !== "number" && o.cookie ) {
180                                         o.selected = parseInt( self._cookie(), 10 );
181                                 }
182                                 if ( typeof o.selected !== "number" && this.lis.filter( ".ui-tabs-selected" ).length ) {
183                                         o.selected = this.lis.index( this.lis.filter( ".ui-tabs-selected" ) );
184                                 }
185                                 o.selected = o.selected || ( this.lis.length ? 0 : -1 );
186                         } else if ( o.selected === null ) { // usage of null is deprecated, TODO remove in next release
187                                 o.selected = -1;
188                         }
190                         // sanity check - default to first tab...
191                         o.selected = ( ( o.selected >= 0 && this.anchors[ o.selected ] ) || o.selected < 0 )
192                                 ? o.selected
193                                 : 0;
195                         // Take disabling tabs via class attribute from HTML
196                         // into account and update option properly.
197                         // A selected tab cannot become disabled.
198                         o.disabled = $.unique( o.disabled.concat(
199                                 $.map( this.lis.filter( ".ui-state-disabled" ), function( n, i ) {
200                                         return self.lis.index( n );
201                                 })
202                         ) ).sort();
204                         if ( $.inArray( o.selected, o.disabled ) != -1 ) {
205                                 o.disabled.splice( $.inArray( o.selected, o.disabled ), 1 );
206                         }
208                         // highlight selected tab
209                         this.panels.addClass( "ui-tabs-hide" );
210                         this.lis.removeClass( "ui-tabs-selected ui-state-active" );
211                         // check for length avoids error when initializing empty list
212                         if ( o.selected >= 0 && this.anchors.length ) {
213                                 this.panels.eq( o.selected ).removeClass( "ui-tabs-hide" );
214                                 this.lis.eq( o.selected ).addClass( "ui-tabs-selected ui-state-active" );
216                                 // seems to be expected behavior that the show callback is fired
217                                 self.element.queue( "tabs", function() {
218                                         self._trigger( "show", null,
219                                                 self._ui( self.anchors[ o.selected ], self.panels[ o.selected ] ) );
220                                 });
222                                 this.load( o.selected );
223                         }
225                         // clean up to avoid memory leaks in certain versions of IE 6
226                         // TODO: namespace this event
227                         $( window ).bind( "unload", function() {
228                                 self.lis.add( self.anchors ).unbind( ".tabs" );
229                                 self.lis = self.anchors = self.panels = null;
230                         });
231                 // update selected after add/remove
232                 } else {
233                         o.selected = this.lis.index( this.lis.filter( ".ui-tabs-selected" ) );
234                 }
236                 // update collapsible
237                 // TODO: use .toggleClass()
238                 this.element[ o.collapsible ? "addClass" : "removeClass" ]( "ui-tabs-collapsible" );
240                 // set or update cookie after init and add/remove respectively
241                 if ( o.cookie ) {
242                         this._cookie( o.selected, o.cookie );
243                 }
245                 // disable tabs
246                 for ( var i = 0, li; ( li = this.lis[ i ] ); i++ ) {
247                         $( li )[ $.inArray( i, o.disabled ) != -1 &&
248                                 // TODO: use .toggleClass()
249                                 !$( li ).hasClass( "ui-tabs-selected" ) ? "addClass" : "removeClass" ]( "ui-state-disabled" );
250                 }
252                 // reset cache if switching from cached to not cached
253                 if ( o.cache === false ) {
254                         this.anchors.removeData( "cache.tabs" );
255                 }
257                 // remove all handlers before, tabify may run on existing tabs after add or option change
258                 this.lis.add( this.anchors ).unbind( ".tabs" );
260                 if ( o.event !== "mouseover" ) {
261                         var addState = function( state, el ) {
262                                 if ( el.is( ":not(.ui-state-disabled)" ) ) {
263                                         el.addClass( "ui-state-" + state );
264                                 }
265                         };
266                         var removeState = function( state, el ) {
267                                 el.removeClass( "ui-state-" + state );
268                         };
269                         this.lis.bind( "mouseover.tabs" , function() {
270                                 addState( "hover", $( this ) );
271                         });
272                         this.lis.bind( "mouseout.tabs", function() {
273                                 removeState( "hover", $( this ) );
274                         });
275                         this.anchors.bind( "focus.tabs", function() {
276                                 addState( "focus", $( this ).closest( "li" ) );
277                         });
278                         this.anchors.bind( "blur.tabs", function() {
279                                 removeState( "focus", $( this ).closest( "li" ) );
280                         });
281                 }
283                 // set up animations
284                 var hideFx, showFx;
285                 if ( o.fx ) {
286                         if ( $.isArray( o.fx ) ) {
287                                 hideFx = o.fx[ 0 ];
288                                 showFx = o.fx[ 1 ];
289                         } else {
290                                 hideFx = showFx = o.fx;
291                         }
292                 }
294                 // Reset certain styles left over from animation
295                 // and prevent IE's ClearType bug...
296                 function resetStyle( $el, fx ) {
297                         $el.css( "display", "" );
298                         if ( !$.support.opacity && fx.opacity ) {
299                                 $el[ 0 ].style.removeAttribute( "filter" );
300                         }
301                 }
303                 // Show a tab...
304                 var showTab = showFx
305                         ? function( clicked, $show ) {
306                                 $( clicked ).closest( "li" ).addClass( "ui-tabs-selected ui-state-active" );
307                                 $show.hide().removeClass( "ui-tabs-hide" ) // avoid flicker that way
308                                         .animate( showFx, showFx.duration || "normal", function() {
309                                                 resetStyle( $show, showFx );
310                                                 self._trigger( "show", null, self._ui( clicked, $show[ 0 ] ) );
311                                         });
312                         }
313                         : function( clicked, $show ) {
314                                 $( clicked ).closest( "li" ).addClass( "ui-tabs-selected ui-state-active" );
315                                 $show.removeClass( "ui-tabs-hide" );
316                                 self._trigger( "show", null, self._ui( clicked, $show[ 0 ] ) );
317                         };
319                 // Hide a tab, $show is optional...
320                 var hideTab = hideFx
321                         ? function( clicked, $hide ) {
322                                 $hide.animate( hideFx, hideFx.duration || "normal", function() {
323                                         self.lis.removeClass( "ui-tabs-selected ui-state-active" );
324                                         $hide.addClass( "ui-tabs-hide" );
325                                         resetStyle( $hide, hideFx );
326                                         self.element.dequeue( "tabs" );
327                                 });
328                         }
329                         : function( clicked, $hide, $show ) {
330                                 self.lis.removeClass( "ui-tabs-selected ui-state-active" );
331                                 $hide.addClass( "ui-tabs-hide" );
332                                 self.element.dequeue( "tabs" );
333                         };
335                 // attach tab event handler, unbind to avoid duplicates from former tabifying...
336                 this.anchors.bind( o.event + ".tabs", function() {
337                         var el = this,
338                                 $li = $(el).closest( "li" ),
339                                 $hide = self.panels.filter( ":not(.ui-tabs-hide)" ),
340                                 $show = $( self._sanitizeSelector( el.hash ) );
342                         // If tab is already selected and not collapsible or tab disabled or
343                         // or is already loading or click callback returns false stop here.
344                         // Check if click handler returns false last so that it is not executed
345                         // for a disabled or loading tab!
346                         if ( ( $li.hasClass( "ui-tabs-selected" ) && !o.collapsible) ||
347                                 $li.hasClass( "ui-state-disabled" ) ||
348                                 $li.hasClass( "ui-state-processing" ) ||
349                                 self._trigger( "select", null, self._ui( this, $show[ 0 ] ) ) === false ) {
350                                 this.blur();
351                                 return false;
352                         }
354                         o.selected = self.anchors.index( this );
356                         self.abort();
358                         // if tab may be closed
359                         if ( o.collapsible ) {
360                                 if ( $li.hasClass( "ui-tabs-selected" ) ) {
361                                         o.selected = -1;
363                                         if ( o.cookie ) {
364                                                 self._cookie( o.selected, o.cookie );
365                                         }
367                                         self.element.queue( "tabs", function() {
368                                                 hideTab( el, $hide );
369                                         }).dequeue( "tabs" );
371                                         this.blur();
372                                         return false;
373                                 } else if ( !$hide.length ) {
374                                         if ( o.cookie ) {
375                                                 self._cookie( o.selected, o.cookie );
376                                         }
378                                         self.element.queue( "tabs", function() {
379                                                 showTab( el, $show );
380                                         });
382                                         // TODO make passing in node possible, see also http://dev.jqueryui.com/ticket/3171
383                                         self.load( self.anchors.index( this ) );
385                                         this.blur();
386                                         return false;
387                                 }
388                         }
390                         if ( o.cookie ) {
391                                 self._cookie( o.selected, o.cookie );
392                         }
394                         // show new tab
395                         if ( $show.length ) {
396                                 if ( $hide.length ) {
397                                         self.element.queue( "tabs", function() {
398                                                 hideTab( el, $hide );
399                                         });
400                                 }
401                                 self.element.queue( "tabs", function() {
402                                         showTab( el, $show );
403                                 });
405                                 self.load( self.anchors.index( this ) );
406                         } else {
407                                 throw "jquery UI Tabs: Mismatching fragment identifier.";
408                         }
410                         // Prevent IE from keeping other link focussed when using the back button
411                         // and remove dotted border from clicked link. This is controlled via CSS
412                         // in modern browsers; blur() removes focus from address bar in Firefox
413                         // which can become a usability and annoying problem with tabs('rotate').
414                         if ( $.browser.msie ) {
415                                 this.blur();
416                         }
417                 });
419                 // disable click in any case
420                 this.anchors.bind( "click.tabs", function(){
421                         return false;
422                 });
423         },
425     _getIndex: function( index ) {
426                 // meta-function to give users option to provide a href string instead of a numerical index.
427                 // also sanitizes numerical indexes to valid values.
428                 if ( typeof index == "string" ) {
429                         index = this.anchors.index( this.anchors.filter( "[href$=" + index + "]" ) );
430                 }
432                 return index;
433         },
435         destroy: function() {
436                 var o = this.options;
438                 this.abort();
440                 this.element
441                         .unbind( ".tabs" )
442                         .removeClass( "ui-tabs ui-widget ui-widget-content ui-corner-all ui-tabs-collapsible" )
443                         .removeData( "tabs" );
445                 this.list.removeClass( "ui-tabs-nav ui-helper-reset ui-helper-clearfix ui-widget-header ui-corner-all" );
447                 this.anchors.each(function() {
448                         var href = $.data( this, "href.tabs" );
449                         if ( href ) {
450                                 this.href = href;
451                         }
452                         var $this = $( this ).unbind( ".tabs" );
453                         $.each( [ "href", "load", "cache" ], function( i, prefix ) {
454                                 $this.removeData( prefix + ".tabs" );
455                         });
456                 });
458                 this.lis.unbind( ".tabs" ).add( this.panels ).each(function() {
459                         if ( $.data( this, "destroy.tabs" ) ) {
460                                 $( this ).remove();
461                         } else {
462                                 $( this ).removeClass([
463                                         "ui-state-default",
464                                         "ui-corner-top",
465                                         "ui-tabs-selected",
466                                         "ui-state-active",
467                                         "ui-state-hover",
468                                         "ui-state-focus",
469                                         "ui-state-disabled",
470                                         "ui-tabs-panel",
471                                         "ui-widget-content",
472                                         "ui-corner-bottom",
473                                         "ui-tabs-hide"
474                                 ].join( " " ) );
475                         }
476                 });
478                 if ( o.cookie ) {
479                         this._cookie( null, o.cookie );
480                 }
482                 return this;
483         },
485         add: function( url, label, index ) {
486                 if ( index === undefined ) {
487                         index = this.anchors.length;
488                 }
490                 var self = this,
491                         o = this.options,
492                         $li = $( o.tabTemplate.replace( /#\{href\}/g, url ).replace( /#\{label\}/g, label ) ),
493                         id = !url.indexOf( "#" ) ? url.replace( "#", "" ) : this._tabId( $( "a", $li )[ 0 ] );
495                 $li.addClass( "ui-state-default ui-corner-top" ).data( "destroy.tabs", true );
497                 // try to find an existing element before creating a new one
498                 var $panel = $( "#" + id );
499                 if ( !$panel.length ) {
500                         $panel = $( o.panelTemplate )
501                                 .attr( "id", id )
502                                 .data( "destroy.tabs", true );
503                 }
504                 $panel.addClass( "ui-tabs-panel ui-widget-content ui-corner-bottom ui-tabs-hide" );
506                 if ( index >= this.lis.length ) {
507                         $li.appendTo( this.list );
508                         $panel.appendTo( this.list[ 0 ].parentNode );
509                 } else {
510                         $li.insertBefore( this.lis[ index ] );
511                         $panel.insertBefore( this.panels[ index ] );
512                 }
514                 o.disabled = $.map( o.disabled, function( n, i ) {
515                         return n >= index ? ++n : n;
516                 });
518                 this._tabify();
520                 if ( this.anchors.length == 1 ) {
521                         o.selected = 0;
522                         $li.addClass( "ui-tabs-selected ui-state-active" );
523                         $panel.removeClass( "ui-tabs-hide" );
524                         this.element.queue( "tabs", function() {
525                                 self._trigger( "show", null, self._ui( self.anchors[ 0 ], self.panels[ 0 ] ) );
526                         });
528                         this.load( 0 );
529                 }
531                 this._trigger( "add", null, this._ui( this.anchors[ index ], this.panels[ index ] ) );
532                 return this;
533         },
535         remove: function( index ) {
536                 index = this._getIndex( index );
537                 var o = this.options,
538                         $li = this.lis.eq( index ).remove(),
539                         $panel = this.panels.eq( index ).remove();
541                 // If selected tab was removed focus tab to the right or
542                 // in case the last tab was removed the tab to the left.
543                 if ( $li.hasClass( "ui-tabs-selected" ) && this.anchors.length > 1) {
544                         this.select( index + ( index + 1 < this.anchors.length ? 1 : -1 ) );
545                 }
547                 o.disabled = $.map(
548                         $.grep( o.disabled, function(n, i) {
549                                 return n != index;
550                         }),
551                         function( n, i ) {
552                                 return n >= index ? --n : n;
553                         });
555                 this._tabify();
557                 this._trigger( "remove", null, this._ui( $li.find( "a" )[ 0 ], $panel[ 0 ] ) );
558                 return this;
559         },
561         enable: function( index ) {
562                 index = this._getIndex( index );
563                 var o = this.options;
564                 if ( $.inArray( index, o.disabled ) == -1 ) {
565                         return;
566                 }
568                 this.lis.eq( index ).removeClass( "ui-state-disabled" );
569                 o.disabled = $.grep( o.disabled, function( n, i ) {
570                         return n != index;
571                 });
573                 this._trigger( "enable", null, this._ui( this.anchors[ index ], this.panels[ index ] ) );
574                 return this;
575         },
577         disable: function( index ) {
578                 index = this._getIndex( index );
579                 var self = this, o = this.options;
580                 // cannot disable already selected tab
581                 if ( index != o.selected ) {
582                         this.lis.eq( index ).addClass( "ui-state-disabled" );
584                         o.disabled.push( index );
585                         o.disabled.sort();
587                         this._trigger( "disable", null, this._ui( this.anchors[ index ], this.panels[ index ] ) );
588                 }
590                 return this;
591         },
593         select: function( index ) {
594                 index = this._getIndex( index );
595                 if ( index == -1 ) {
596                         if ( this.options.collapsible && this.options.selected != -1 ) {
597                                 index = this.options.selected;
598                         } else {
599                                 return this;
600                         }
601                 }
602                 this.anchors.eq( index ).trigger( this.options.event + ".tabs" );
603                 return this;
604         },
606         load: function( index ) {
607                 index = this._getIndex( index );
608                 var self = this,
609                         o = this.options,
610                         a = this.anchors.eq( index )[ 0 ],
611                         url = $.data( a, "load.tabs" );
613                 this.abort();
615                 // not remote or from cache
616                 if ( !url || this.element.queue( "tabs" ).length !== 0 && $.data( a, "cache.tabs" ) ) {
617                         this.element.dequeue( "tabs" );
618                         return;
619                 }
621                 // load remote from here on
622                 this.lis.eq( index ).addClass( "ui-state-processing" );
624                 if ( o.spinner ) {
625                         var span = $( "span", a );
626                         span.data( "label.tabs", span.html() ).html( o.spinner );
627                 }
629                 this.xhr = $.ajax( $.extend( {}, o.ajaxOptions, {
630                         url: url,
631                         success: function( r, s ) {
632                                 $( self._sanitizeSelector( a.hash ) ).html( r );
634                                 // take care of tab labels
635                                 self._cleanup();
637                                 if ( o.cache ) {
638                                         $.data( a, "cache.tabs", true );
639                                 }
641                                 self._trigger( "load", null, self._ui( self.anchors[ index ], self.panels[ index ] ) );
642                                 try {
643                                         o.ajaxOptions.success( r, s );
644                                 }
645                                 catch ( e ) {}
646                         },
647                         error: function( xhr, s, e ) {
648                                 // take care of tab labels
649                                 self._cleanup();
651                                 self._trigger( "load", null, self._ui( self.anchors[ index ], self.panels[ index ] ) );
652                                 try {
653                                         // Passing index avoid a race condition when this method is
654                                         // called after the user has selected another tab.
655                                         // Pass the anchor that initiated this request allows
656                                         // loadError to manipulate the tab content panel via $(a.hash)
657                                         o.ajaxOptions.error( xhr, s, index, a );
658                                 }
659                                 catch ( e ) {}
660                         }
661                 } ) );
663                 // last, so that load event is fired before show...
664                 self.element.dequeue( "tabs" );
666                 return this;
667         },
669         abort: function() {
670                 // stop possibly running animations
671                 this.element.queue( [] );
672                 this.panels.stop( false, true );
674                 // "tabs" queue must not contain more than two elements,
675                 // which are the callbacks for the latest clicked tab...
676                 this.element.queue( "tabs", this.element.queue( "tabs" ).splice( -2, 2 ) );
678                 // terminate pending requests from other tabs
679                 if ( this.xhr ) {
680                         this.xhr.abort();
681                         delete this.xhr;
682                 }
684                 // take care of tab labels
685                 this._cleanup();
686                 return this;
687         },
689         url: function( index, url ) {
690                 this.anchors.eq( index ).removeData( "cache.tabs" ).data( "load.tabs", url );
691                 return this;
692         },
694         length: function() {
695                 return this.anchors.length;
696         }
699 $.extend( $.ui.tabs, {
700         version: "1.8.4"
704  * Tabs Extensions
705  */
708  * Rotate
709  */
710 $.extend( $.ui.tabs.prototype, {
711         rotation: null,
712         rotate: function( ms, continuing ) {
713                 var self = this,
714                         o = this.options;
716                 var rotate = self._rotate || ( self._rotate = function( e ) {
717                         clearTimeout( self.rotation );
718                         self.rotation = setTimeout(function() {
719                                 var t = o.selected;
720                                 self.select( ++t < self.anchors.length ? t : 0 );
721                         }, ms );
722                         
723                         if ( e ) {
724                                 e.stopPropagation();
725                         }
726                 });
728                 var stop = self._unrotate || ( self._unrotate = !continuing
729                         ? function(e) {
730                                 if (e.clientX) { // in case of a true click
731                                         self.rotate(null);
732                                 }
733                         }
734                         : function( e ) {
735                                 t = o.selected;
736                                 rotate();
737                         });
739                 // start rotation
740                 if ( ms ) {
741                         this.element.bind( "tabsshow", rotate );
742                         this.anchors.bind( o.event + ".tabs", stop );
743                         rotate();
744                 // stop rotation
745                 } else {
746                         clearTimeout( self.rotation );
747                         this.element.unbind( "tabsshow", rotate );
748                         this.anchors.unbind( o.event + ".tabs", stop );
749                         delete this._rotate;
750                         delete this._unrotate;
751                 }
753                 return this;
754         }
757 })( jquery );