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comparison src/main/webapp/imageServer/resources/js/jquery-ui-1.10.4/ui/jquery.ui.menu.js @ 7:764f47286679

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author jurzua
date Wed, 29 Oct 2014 14:28:34 +0000
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6:ded3bccf2cf9 7:764f47286679
1 /*!
2 * jQuery UI Menu 1.10.4
3 * http://jqueryui.com
4 *
5 * Copyright 2014 jQuery Foundation and other contributors
6 * Released under the MIT license.
7 * http://jquery.org/license
8 *
9 * http://api.jqueryui.com/menu/
10 *
11 * Depends:
12 * jquery.ui.core.js
13 * jquery.ui.widget.js
14 * jquery.ui.position.js
15 */
16 (function( $, undefined ) {
17
18 $.widget( "ui.menu", {
19 version: "1.10.4",
20 defaultElement: "<ul>",
21 delay: 300,
22 options: {
23 icons: {
24 submenu: "ui-icon-carat-1-e"
25 },
26 menus: "ul",
27 position: {
28 my: "left top",
29 at: "right top"
30 },
31 role: "menu",
32
33 // callbacks
34 blur: null,
35 focus: null,
36 select: null
37 },
38
39 _create: function() {
40 this.activeMenu = this.element;
41 // flag used to prevent firing of the click handler
42 // as the event bubbles up through nested menus
43 this.mouseHandled = false;
44 this.element
45 .uniqueId()
46 .addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
47 .toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
48 .attr({
49 role: this.options.role,
50 tabIndex: 0
51 })
52 // need to catch all clicks on disabled menu
53 // not possible through _on
54 .bind( "click" + this.eventNamespace, $.proxy(function( event ) {
55 if ( this.options.disabled ) {
56 event.preventDefault();
57 }
58 }, this ));
59
60 if ( this.options.disabled ) {
61 this.element
62 .addClass( "ui-state-disabled" )
63 .attr( "aria-disabled", "true" );
64 }
65
66 this._on({
67 // Prevent focus from sticking to links inside menu after clicking
68 // them (focus should always stay on UL during navigation).
69 "mousedown .ui-menu-item > a": function( event ) {
70 event.preventDefault();
71 },
72 "click .ui-state-disabled > a": function( event ) {
73 event.preventDefault();
74 },
75 "click .ui-menu-item:has(a)": function( event ) {
76 var target = $( event.target ).closest( ".ui-menu-item" );
77 if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
78 this.select( event );
79
80 // Only set the mouseHandled flag if the event will bubble, see #9469.
81 if ( !event.isPropagationStopped() ) {
82 this.mouseHandled = true;
83 }
84
85 // Open submenu on click
86 if ( target.has( ".ui-menu" ).length ) {
87 this.expand( event );
88 } else if ( !this.element.is( ":focus" ) && $( this.document[ 0 ].activeElement ).closest( ".ui-menu" ).length ) {
89
90 // Redirect focus to the menu
91 this.element.trigger( "focus", [ true ] );
92
93 // If the active item is on the top level, let it stay active.
94 // Otherwise, blur the active item since it is no longer visible.
95 if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
96 clearTimeout( this.timer );
97 }
98 }
99 }
100 },
101 "mouseenter .ui-menu-item": function( event ) {
102 var target = $( event.currentTarget );
103 // Remove ui-state-active class from siblings of the newly focused menu item
104 // to avoid a jump caused by adjacent elements both having a class with a border
105 target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
106 this.focus( event, target );
107 },
108 mouseleave: "collapseAll",
109 "mouseleave .ui-menu": "collapseAll",
110 focus: function( event, keepActiveItem ) {
111 // If there's already an active item, keep it active
112 // If not, activate the first item
113 var item = this.active || this.element.children( ".ui-menu-item" ).eq( 0 );
114
115 if ( !keepActiveItem ) {
116 this.focus( event, item );
117 }
118 },
119 blur: function( event ) {
120 this._delay(function() {
121 if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
122 this.collapseAll( event );
123 }
124 });
125 },
126 keydown: "_keydown"
127 });
128
129 this.refresh();
130
131 // Clicks outside of a menu collapse any open menus
132 this._on( this.document, {
133 click: function( event ) {
134 if ( !$( event.target ).closest( ".ui-menu" ).length ) {
135 this.collapseAll( event );
136 }
137
138 // Reset the mouseHandled flag
139 this.mouseHandled = false;
140 }
141 });
142 },
143
144 _destroy: function() {
145 // Destroy (sub)menus
146 this.element
147 .removeAttr( "aria-activedescendant" )
148 .find( ".ui-menu" ).addBack()
149 .removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons" )
150 .removeAttr( "role" )
151 .removeAttr( "tabIndex" )
152 .removeAttr( "aria-labelledby" )
153 .removeAttr( "aria-expanded" )
154 .removeAttr( "aria-hidden" )
155 .removeAttr( "aria-disabled" )
156 .removeUniqueId()
157 .show();
158
159 // Destroy menu items
160 this.element.find( ".ui-menu-item" )
161 .removeClass( "ui-menu-item" )
162 .removeAttr( "role" )
163 .removeAttr( "aria-disabled" )
164 .children( "a" )
165 .removeUniqueId()
166 .removeClass( "ui-corner-all ui-state-hover" )
167 .removeAttr( "tabIndex" )
168 .removeAttr( "role" )
169 .removeAttr( "aria-haspopup" )
170 .children().each( function() {
171 var elem = $( this );
172 if ( elem.data( "ui-menu-submenu-carat" ) ) {
173 elem.remove();
174 }
175 });
176
177 // Destroy menu dividers
178 this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
179 },
180
181 _keydown: function( event ) {
182 var match, prev, character, skip, regex,
183 preventDefault = true;
184
185 function escape( value ) {
186 return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
187 }
188
189 switch ( event.keyCode ) {
190 case $.ui.keyCode.PAGE_UP:
191 this.previousPage( event );
192 break;
193 case $.ui.keyCode.PAGE_DOWN:
194 this.nextPage( event );
195 break;
196 case $.ui.keyCode.HOME:
197 this._move( "first", "first", event );
198 break;
199 case $.ui.keyCode.END:
200 this._move( "last", "last", event );
201 break;
202 case $.ui.keyCode.UP:
203 this.previous( event );
204 break;
205 case $.ui.keyCode.DOWN:
206 this.next( event );
207 break;
208 case $.ui.keyCode.LEFT:
209 this.collapse( event );
210 break;
211 case $.ui.keyCode.RIGHT:
212 if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
213 this.expand( event );
214 }
215 break;
216 case $.ui.keyCode.ENTER:
217 case $.ui.keyCode.SPACE:
218 this._activate( event );
219 break;
220 case $.ui.keyCode.ESCAPE:
221 this.collapse( event );
222 break;
223 default:
224 preventDefault = false;
225 prev = this.previousFilter || "";
226 character = String.fromCharCode( event.keyCode );
227 skip = false;
228
229 clearTimeout( this.filterTimer );
230
231 if ( character === prev ) {
232 skip = true;
233 } else {
234 character = prev + character;
235 }
236
237 regex = new RegExp( "^" + escape( character ), "i" );
238 match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
239 return regex.test( $( this ).children( "a" ).text() );
240 });
241 match = skip && match.index( this.active.next() ) !== -1 ?
242 this.active.nextAll( ".ui-menu-item" ) :
243 match;
244
245 // If no matches on the current filter, reset to the last character pressed
246 // to move down the menu to the first item that starts with that character
247 if ( !match.length ) {
248 character = String.fromCharCode( event.keyCode );
249 regex = new RegExp( "^" + escape( character ), "i" );
250 match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
251 return regex.test( $( this ).children( "a" ).text() );
252 });
253 }
254
255 if ( match.length ) {
256 this.focus( event, match );
257 if ( match.length > 1 ) {
258 this.previousFilter = character;
259 this.filterTimer = this._delay(function() {
260 delete this.previousFilter;
261 }, 1000 );
262 } else {
263 delete this.previousFilter;
264 }
265 } else {
266 delete this.previousFilter;
267 }
268 }
269
270 if ( preventDefault ) {
271 event.preventDefault();
272 }
273 },
274
275 _activate: function( event ) {
276 if ( !this.active.is( ".ui-state-disabled" ) ) {
277 if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
278 this.expand( event );
279 } else {
280 this.select( event );
281 }
282 }
283 },
284
285 refresh: function() {
286 var menus,
287 icon = this.options.icons.submenu,
288 submenus = this.element.find( this.options.menus );
289
290 this.element.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length );
291
292 // Initialize nested menus
293 submenus.filter( ":not(.ui-menu)" )
294 .addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
295 .hide()
296 .attr({
297 role: this.options.role,
298 "aria-hidden": "true",
299 "aria-expanded": "false"
300 })
301 .each(function() {
302 var menu = $( this ),
303 item = menu.prev( "a" ),
304 submenuCarat = $( "<span>" )
305 .addClass( "ui-menu-icon ui-icon " + icon )
306 .data( "ui-menu-submenu-carat", true );
307
308 item
309 .attr( "aria-haspopup", "true" )
310 .prepend( submenuCarat );
311 menu.attr( "aria-labelledby", item.attr( "id" ) );
312 });
313
314 menus = submenus.add( this.element );
315
316 // Don't refresh list items that are already adapted
317 menus.children( ":not(.ui-menu-item):has(a)" )
318 .addClass( "ui-menu-item" )
319 .attr( "role", "presentation" )
320 .children( "a" )
321 .uniqueId()
322 .addClass( "ui-corner-all" )
323 .attr({
324 tabIndex: -1,
325 role: this._itemRole()
326 });
327
328 // Initialize unlinked menu-items containing spaces and/or dashes only as dividers
329 menus.children( ":not(.ui-menu-item)" ).each(function() {
330 var item = $( this );
331 // hyphen, em dash, en dash
332 if ( !/[^\-\u2014\u2013\s]/.test( item.text() ) ) {
333 item.addClass( "ui-widget-content ui-menu-divider" );
334 }
335 });
336
337 // Add aria-disabled attribute to any disabled menu item
338 menus.children( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
339
340 // If the active item has been removed, blur the menu
341 if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
342 this.blur();
343 }
344 },
345
346 _itemRole: function() {
347 return {
348 menu: "menuitem",
349 listbox: "option"
350 }[ this.options.role ];
351 },
352
353 _setOption: function( key, value ) {
354 if ( key === "icons" ) {
355 this.element.find( ".ui-menu-icon" )
356 .removeClass( this.options.icons.submenu )
357 .addClass( value.submenu );
358 }
359 this._super( key, value );
360 },
361
362 focus: function( event, item ) {
363 var nested, focused;
364 this.blur( event, event && event.type === "focus" );
365
366 this._scrollIntoView( item );
367
368 this.active = item.first();
369 focused = this.active.children( "a" ).addClass( "ui-state-focus" );
370 // Only update aria-activedescendant if there's a role
371 // otherwise we assume focus is managed elsewhere
372 if ( this.options.role ) {
373 this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
374 }
375
376 // Highlight active parent menu item, if any
377 this.active
378 .parent()
379 .closest( ".ui-menu-item" )
380 .children( "a:first" )
381 .addClass( "ui-state-active" );
382
383 if ( event && event.type === "keydown" ) {
384 this._close();
385 } else {
386 this.timer = this._delay(function() {
387 this._close();
388 }, this.delay );
389 }
390
391 nested = item.children( ".ui-menu" );
392 if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
393 this._startOpening(nested);
394 }
395 this.activeMenu = item.parent();
396
397 this._trigger( "focus", event, { item: item } );
398 },
399
400 _scrollIntoView: function( item ) {
401 var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
402 if ( this._hasScroll() ) {
403 borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
404 paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
405 offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
406 scroll = this.activeMenu.scrollTop();
407 elementHeight = this.activeMenu.height();
408 itemHeight = item.height();
409
410 if ( offset < 0 ) {
411 this.activeMenu.scrollTop( scroll + offset );
412 } else if ( offset + itemHeight > elementHeight ) {
413 this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
414 }
415 }
416 },
417
418 blur: function( event, fromFocus ) {
419 if ( !fromFocus ) {
420 clearTimeout( this.timer );
421 }
422
423 if ( !this.active ) {
424 return;
425 }
426
427 this.active.children( "a" ).removeClass( "ui-state-focus" );
428 this.active = null;
429
430 this._trigger( "blur", event, { item: this.active } );
431 },
432
433 _startOpening: function( submenu ) {
434 clearTimeout( this.timer );
435
436 // Don't open if already open fixes a Firefox bug that caused a .5 pixel
437 // shift in the submenu position when mousing over the carat icon
438 if ( submenu.attr( "aria-hidden" ) !== "true" ) {
439 return;
440 }
441
442 this.timer = this._delay(function() {
443 this._close();
444 this._open( submenu );
445 }, this.delay );
446 },
447
448 _open: function( submenu ) {
449 var position = $.extend({
450 of: this.active
451 }, this.options.position );
452
453 clearTimeout( this.timer );
454 this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
455 .hide()
456 .attr( "aria-hidden", "true" );
457
458 submenu
459 .show()
460 .removeAttr( "aria-hidden" )
461 .attr( "aria-expanded", "true" )
462 .position( position );
463 },
464
465 collapseAll: function( event, all ) {
466 clearTimeout( this.timer );
467 this.timer = this._delay(function() {
468 // If we were passed an event, look for the submenu that contains the event
469 var currentMenu = all ? this.element :
470 $( event && event.target ).closest( this.element.find( ".ui-menu" ) );
471
472 // If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
473 if ( !currentMenu.length ) {
474 currentMenu = this.element;
475 }
476
477 this._close( currentMenu );
478
479 this.blur( event );
480 this.activeMenu = currentMenu;
481 }, this.delay );
482 },
483
484 // With no arguments, closes the currently active menu - if nothing is active
485 // it closes all menus. If passed an argument, it will search for menus BELOW
486 _close: function( startMenu ) {
487 if ( !startMenu ) {
488 startMenu = this.active ? this.active.parent() : this.element;
489 }
490
491 startMenu
492 .find( ".ui-menu" )
493 .hide()
494 .attr( "aria-hidden", "true" )
495 .attr( "aria-expanded", "false" )
496 .end()
497 .find( "a.ui-state-active" )
498 .removeClass( "ui-state-active" );
499 },
500
501 collapse: function( event ) {
502 var newItem = this.active &&
503 this.active.parent().closest( ".ui-menu-item", this.element );
504 if ( newItem && newItem.length ) {
505 this._close();
506 this.focus( event, newItem );
507 }
508 },
509
510 expand: function( event ) {
511 var newItem = this.active &&
512 this.active
513 .children( ".ui-menu " )
514 .children( ".ui-menu-item" )
515 .first();
516
517 if ( newItem && newItem.length ) {
518 this._open( newItem.parent() );
519
520 // Delay so Firefox will not hide activedescendant change in expanding submenu from AT
521 this._delay(function() {
522 this.focus( event, newItem );
523 });
524 }
525 },
526
527 next: function( event ) {
528 this._move( "next", "first", event );
529 },
530
531 previous: function( event ) {
532 this._move( "prev", "last", event );
533 },
534
535 isFirstItem: function() {
536 return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
537 },
538
539 isLastItem: function() {
540 return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
541 },
542
543 _move: function( direction, filter, event ) {
544 var next;
545 if ( this.active ) {
546 if ( direction === "first" || direction === "last" ) {
547 next = this.active
548 [ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
549 .eq( -1 );
550 } else {
551 next = this.active
552 [ direction + "All" ]( ".ui-menu-item" )
553 .eq( 0 );
554 }
555 }
556 if ( !next || !next.length || !this.active ) {
557 next = this.activeMenu.children( ".ui-menu-item" )[ filter ]();
558 }
559
560 this.focus( event, next );
561 },
562
563 nextPage: function( event ) {
564 var item, base, height;
565
566 if ( !this.active ) {
567 this.next( event );
568 return;
569 }
570 if ( this.isLastItem() ) {
571 return;
572 }
573 if ( this._hasScroll() ) {
574 base = this.active.offset().top;
575 height = this.element.height();
576 this.active.nextAll( ".ui-menu-item" ).each(function() {
577 item = $( this );
578 return item.offset().top - base - height < 0;
579 });
580
581 this.focus( event, item );
582 } else {
583 this.focus( event, this.activeMenu.children( ".ui-menu-item" )
584 [ !this.active ? "first" : "last" ]() );
585 }
586 },
587
588 previousPage: function( event ) {
589 var item, base, height;
590 if ( !this.active ) {
591 this.next( event );
592 return;
593 }
594 if ( this.isFirstItem() ) {
595 return;
596 }
597 if ( this._hasScroll() ) {
598 base = this.active.offset().top;
599 height = this.element.height();
600 this.active.prevAll( ".ui-menu-item" ).each(function() {
601 item = $( this );
602 return item.offset().top - base + height > 0;
603 });
604
605 this.focus( event, item );
606 } else {
607 this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
608 }
609 },
610
611 _hasScroll: function() {
612 return this.element.outerHeight() < this.element.prop( "scrollHeight" );
613 },
614
615 select: function( event ) {
616 // TODO: It should never be possible to not have an active item at this
617 // point, but the tests don't trigger mouseenter before click.
618 this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
619 var ui = { item: this.active };
620 if ( !this.active.has( ".ui-menu" ).length ) {
621 this.collapseAll( event, true );
622 }
623 this._trigger( "select", event, ui );
624 }
625 });
626
627 }( jQuery ));