PageSourceSearch

https://reachx.co/js/ui/jquery.ui.menu.js

js reachx.co collected 2026-09-26 00:52:07 UTC 16,565 bytes, 621 lines download raw bytes

vendor: 16,565 bytes, lines 1-621
1/*!
2 * jQuery UI Menu 1.10.2
3 * http://jqueryui.com
4 *
5 * Copyright 2013 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: "1.10.2",
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.mouseHandled = true;
79
80					this.select( event );
81					// Open submenu on click
82					if ( target.has( ".ui-menu" ).length ) {
83						this.expand( event );
84					} else if ( !this.element.is( ":focus" ) ) {
85						// Redirect focus to the menu
86						this.element.trigger( "focus", [ true ] );
87
88						// If the active item is on the top level, let it stay active.
89						// Otherwise, blur the active item since it is no longer visible.
90						if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
91							clearTimeout( this.timer );
92						}
93					}
94				}
95			},
96			"mouseenter .ui-menu-item": function( event ) {
97				var target = $( event.currentTarget );
98				// Remove ui-state-active class from siblings of the newly focused menu item
99				// to avoid a jump caused by adjacent elements both having a class with a border
100				target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
101				this.focus( event, target );
102			},
103			mouseleave: "collapseAll",
104			"mouseleave .ui-menu": "collapseAll",
105			focus: function( event, keepActiveItem ) {
106				// If there's already an active item, keep it active
107				// If not, activate the first item
108				var item = this.active || this.element.children( ".ui-menu-item" ).eq( 0 );
109
110				if ( !keepActiveItem ) {
111					this.focus( event, item );
112				}
113			},
114			blur: function( event ) {
115				this._delay(function() {
116					if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
117						this.collapseAll( event );
118					}
119				});
120			},
121			keydown: "_keydown"
122		});
123
124		this.refresh();
125
126		// Clicks outside of a menu collapse any open menus
127		this._on( this.document, {
128			click: function( event ) {
129				if ( !$( event.target ).closest( ".ui-menu" ).length ) {
130					this.collapseAll( event );
131				}
132
133				// Reset the mouseHandled flag
134				this.mouseHandled = false;
135			}
136		});
137	},
138
139	_destroy: function() {
140		// Destroy (sub)menus
141		this.element
142			.removeAttr( "aria-activedescendant" )
143			.find( ".ui-menu" ).addBack()
144				.removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons" )
145				.removeAttr( "role" )
146				.removeAttr( "tabIndex" )
147				.removeAttr( "aria-labelledby" )
148				.removeAttr( "aria-expanded" )
149				.removeAttr( "aria-hidden" )
150				.removeAttr( "aria-disabled" )
151				.removeUniqueId()
152				.show();
153
154		// Destroy menu items
155		this.element.find( ".ui-menu-item" )
156			.removeClass( "ui-menu-item" )
157			.removeAttr( "role" )
158			.removeAttr( "aria-disabled" )
159			.children( "a" )
160				.removeUniqueId()
161				.removeClass( "ui-corner-all ui-state-hover" )
162				.removeAttr( "tabIndex" )
163				.removeAttr( "role" )
164				.removeAttr( "aria-haspopup" )
165				.children().each( function() {
166					var elem = $( this );
167					if ( elem.data( "ui-menu-submenu-carat" ) ) {
168						elem.remove();
169					}
170				});
171
172		// Destroy menu dividers
173		this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
174	},
175
176	_keydown: function( event ) {
177		/*jshint maxcomplexity:20*/
178		var match, prev, character, skip, regex,
179			preventDefault = true;
180
181		function escape( value ) {
182			return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
183		}
184
185		switch ( event.keyCode ) {
186		case $.ui.keyCode.PAGE_UP:
187			this.previousPage( event );
188			break;
189		case $.ui.keyCode.PAGE_DOWN:
190			this.nextPage( event );
191			break;
192		case $.ui.keyCode.HOME:
193			this._move( "first", "first", event );
194			break;
195		case $.ui.keyCode.END:
196			this._move( "last", "last", event );
197			break;
198		case $.ui.keyCode.UP:
199			this.previous( event );
200			break;
201		case $.ui.keyCode.DOWN:
202			this.next( event );
203			break;
204		case $.ui.keyCode.LEFT:
205			this.collapse( event );
206			break;
207		case $.ui.keyCode.RIGHT:
208			if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
209				this.expand( event );
210			}
211			break;
212		case $.ui.keyCode.ENTER:
213		case $.ui.keyCode.SPACE:
214			this._activate( event );
215			break;
216		case $.ui.keyCode.ESCAPE:
217			this.collapse( event );
218			break;
219		default:
220			preventDefault = false;
221			prev = this.previousFilter || "";
222			character = String.fromCharCode( event.keyCode );
223			skip = false;
224
225			clearTimeout( this.filterTimer );
226
227			if ( character === prev ) {
228				skip = true;
229			} else {
230				character = prev + character;
231			}
232
233			regex = new RegExp( "^" + escape( character ), "i" );
234			match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
235				return regex.test( $( this ).children( "a" ).text() );
236			});
237			match = skip && match.index( this.active.next() ) !== -1 ?
238				this.active.nextAll( ".ui-menu-item" ) :
239				match;
240
241			// If no matches on the current filter, reset to the last character pressed
242			// to move down the menu to the first item that starts with that character
243			if ( !match.length ) {
244				character = String.fromCharCode( event.keyCode );
245				regex = new RegExp( "^" + escape( character ), "i" );
246				match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
247					return regex.test( $( this ).children( "a" ).text() );
248				});
249			}
250
251			if ( match.length ) {
252				this.focus( event, match );
253				if ( match.length > 1 ) {
254					this.previousFilter = character;
255					this.filterTimer = this._delay(function() {
256						delete this.previousFilter;
257					}, 1000 );
258				} else {
259					delete this.previousFilter;
260				}
261			} else {
262				delete this.previousFilter;
263			}
264		}
265
266		if ( preventDefault ) {
267			event.preventDefault();
268		}
269	},
270
271	_activate: function( event ) {
272		if ( !this.active.is( ".ui-state-disabled" ) ) {
273			if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
274				this.expand( event );
275			} else {
276				this.select( event );
277			}
278		}
279	},
280
281	refresh: function() {
282		var menus,
283			icon = this.options.icons.submenu,
284			submenus = this.element.find( this.options.menus );
285
286		// Initialize nested menus
287		submenus.filter( ":not(.ui-menu)" )
288			.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
289			.hide()
290			.attr({
291				role: this.options.role,
292				"aria-hidden": "true",
293				"aria-expanded": "false"
294			})
295			.each(function() {
296				var menu = $( this ),
297					item = menu.prev( "a" ),
298					submenuCarat = $( "<span>" )
299						.addClass( "ui-menu-icon ui-icon " + icon )
300						.data( "ui-menu-submenu-carat", true );
301
302				item
303					.attr( "aria-haspopup", "true" )
304					.prepend( submenuCarat );
305				menu.attr( "aria-labelledby", item.attr( "id" ) );
306			});
307
308		menus = submenus.add( this.element );
309
310		// Don't refresh list items that are already adapted
311		menus.children( ":not(.ui-menu-item):has(a)" )
312			.addClass( "ui-menu-item" )
313			.attr( "role", "presentation" )
314			.children( "a" )
315				.uniqueId()
316				.addClass( "ui-corner-all" )
317				.attr({
318					tabIndex: -1,
319					role: this._itemRole()
320				});
321
322		// Initialize unlinked menu-items containing spaces and/or dashes only as dividers
323		menus.children( ":not(.ui-menu-item)" ).each(function() {
324			var item = $( this );
325			// hyphen, em dash, en dash
326			if ( !/[^\-\u2014\u2013\s]/.test( item.text() ) ) {
327				item.addClass( "ui-widget-content ui-menu-divider" );
328			}
329		});
330
331		// Add aria-disabled attribute to any disabled menu item
332		menus.children( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
333
334		// If the active item has been removed, blur the menu
335		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
336			this.blur();
337		}
338	},
339
340	_itemRole: function() {
341		return {
342			menu: "menuitem",
343			listbox: "option"
344		}[ this.options.role ];
345	},
346
347	_setOption: function( key, value ) {
348		if ( key === "icons" ) {
349			this.element.find( ".ui-menu-icon" )
350				.removeClass( this.options.icons.submenu )
351				.addClass( value.submenu );
352		}
353		this._super( key, value );
354	},
355
356	focus: function( event, item ) {
357		var nested, focused;
358		this.blur( event, event && event.type === "focus" );
359
360		this._scrollIntoView( item );
361
362		this.active = item.first();
363		focused = this.active.children( "a" ).addClass( "ui-state-focus" );
364		// Only update aria-activedescendant if there's a role
365		// otherwise we assume focus is managed elsewhere
366		if ( this.options.role ) {
367			this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
368		}
369
370		// Highlight active parent menu item, if any
371		this.active
372			.parent()
373			.closest( ".ui-menu-item" )
374			.children( "a:first" )
375			.addClass( "ui-state-active" );
376
377		if ( event && event.type === "keydown" ) {
378			this._close();
379		} else {
380			this.timer = this._delay(function() {
381				this._close();
382			}, this.delay );
383		}
384
385		nested = item.children( ".ui-menu" );
386		if ( nested.length && ( /^mouse/.test( event.type ) ) ) {
387			this._startOpening(nested);
388		}
389		this.activeMenu = item.parent();
390
391		this._trigger( "focus", event, { item: item } );
392	},
393
394	_scrollIntoView: function( item ) {
395		var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
396		if ( this._hasScroll() ) {
397			borderTop = parseFloat( $.css( this.activeMenu[0], "borderTopWidth" ) ) || 0;
398			paddingTop = parseFloat( $.css( this.activeMenu[0], "paddingTop" ) ) || 0;
399			offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
400			scroll = this.activeMenu.scrollTop();
401			elementHeight = this.activeMenu.height();
402			itemHeight = item.height();
403
404			if ( offset < 0 ) {
405				this.activeMenu.scrollTop( scroll + offset );
406			} else if ( offset + itemHeight > elementHeight ) {
407				this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
408			}
409		}
410	},
411
412	blur: function( event, fromFocus ) {
413		if ( !fromFocus ) {
414			clearTimeout( this.timer );
415		}
416
417		if ( !this.active ) {
418			return;
419		}
420
421		this.active.children( "a" ).removeClass( "ui-state-focus" );
422		this.active = null;
423
424		this._trigger( "blur", event, { item: this.active } );
425	},
426
427	_startOpening: function( submenu ) {
428		clearTimeout( this.timer );
429
430		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
431		// shift in the submenu position when mousing over the carat icon
432		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
433			return;
434		}
435
436		this.timer = this._delay(function() {
437			this._close();
438			this._open( submenu );
439		}, this.delay );
440	},
441
442	_open: function( submenu ) {
443		var position = $.extend({
444			of: this.active
445		}, this.options.position );
446
447		clearTimeout( this.timer );
448		this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
449			.hide()
450			.attr( "aria-hidden", "true" );
451
452		submenu
453			.show()
454			.removeAttr( "aria-hidden" )
455			.attr( "aria-expanded", "true" )
456			.position( position );
457	},
458
459	collapseAll: function( event, all ) {
460		clearTimeout( this.timer );
461		this.timer = this._delay(function() {
462			// If we were passed an event, look for the submenu that contains the event
463			var currentMenu = all ? this.element :
464				$( event && event.target ).closest( this.element.find( ".ui-menu" ) );
465
466			// If we found no valid submenu ancestor, use the main menu to close all sub menus anyway
467			if ( !currentMenu.length ) {
468				currentMenu = this.element;
469			}
470
471			this._close( currentMenu );
472
473			this.blur( event );
474			this.activeMenu = currentMenu;
475		}, this.delay );
476	},
477
478	// With no arguments, closes the currently active menu - if nothing is active
479	// it closes all menus.  If passed an argument, it will search for menus BELOW
480	_close: function( startMenu ) {
481		if ( !startMenu ) {
482			startMenu = this.active ? this.active.parent() : this.element;
483		}
484
485		startMenu
486			.find( ".ui-menu" )
487				.hide()
488				.attr( "aria-hidden", "true" )
489				.attr( "aria-expanded", "false" )
490			.end()
491			.find( "a.ui-state-active" )
492				.removeClass( "ui-state-active" );
493	},
494
495	collapse: function( event ) {
496		var newItem = this.active &&
497			this.active.parent().closest( ".ui-menu-item", this.element );
498		if ( newItem && newItem.length ) {
499			this._close();
500			this.focus( event, newItem );
501		}
502	},
503
504	expand: function( event ) {
505		var newItem = this.active &&
506			this.active
507				.children( ".ui-menu " )
508				.children( ".ui-menu-item" )
509				.first();
510
511		if ( newItem && newItem.length ) {
512			this._open( newItem.parent() );
513
514			// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
515			this._delay(function() {
516				this.focus( event, newItem );
517			});
518		}
519	},
520
521	next: function( event ) {
522		this._move( "next", "first", event );
523	},
524
525	previous: function( event ) {
526		this._move( "prev", "last", event );
527	},
528
529	isFirstItem: function() {
530		return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
531	},
532
533	isLastItem: function() {
534		return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
535	},
536
537	_move: function( direction, filter, event ) {
538		var next;
539		if ( this.active ) {
540			if ( direction === "first" || direction === "last" ) {
541				next = this.active
542					[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
543					.eq( -1 );
544			} else {
545				next = this.active
546					[ direction + "All" ]( ".ui-menu-item" )
547					.eq( 0 );
548			}
549		}
550		if ( !next || !next.length || !this.active ) {
551			next = this.activeMenu.children( ".ui-menu-item" )[ filter ]();
552		}
553
554		this.focus( event, next );
555	},
556
557	nextPage: function( event ) {
558		var item, base, height;
559
560		if ( !this.active ) {
561			this.next( event );
562			return;
563		}
564		if ( this.isLastItem() ) {
565			return;
566		}
567		if ( this._hasScroll() ) {
568			base = this.active.offset().top;
569			height = this.element.height();
570			this.active.nextAll( ".ui-menu-item" ).each(function() {
571				item = $( this );
572				return item.offset().top - base - height < 0;
573			});
574
575			this.focus( event, item );
576		} else {
577			this.focus( event, this.activeMenu.children( ".ui-menu-item" )
578				[ !this.active ? "first" : "last" ]() );
579		}
580	},
581
582	previousPage: function( event ) {
583		var item, base, height;
584		if ( !this.active ) {
585			this.next( event );
586			return;
587		}
588		if ( this.isFirstItem() ) {
589			return;
590		}
591		if ( this._hasScroll() ) {
592			base = this.active.offset().top;
593			height = this.element.height();
594			this.active.prevAll( ".ui-menu-item" ).each(function() {
595				item = $( this );
596				return item.offset().top - base + height > 0;
597			});
598
599			this.focus( event, item );
600		} else {
601			this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
602		}
603	},
604
605	_hasScroll: function() {
606		return this.element.outerHeight() < this.element.prop( "scrollHeight" );
607	},
608
609	select: function( event ) {
610		// TODO: It should never be possible to not have an active item at this
611		// point, but the tests don't trigger mouseenter before click.
612		this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
613		var ui = { item: this.active };
614		if ( !this.active.has( ".ui-menu" ).length ) {
615			this.collapseAll( event, true );
616		}
617		this._trigger( "select", event, ui );
618	}
619});
620
621}( jQuery ));

Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.