angelovcom.net

menu.js (17775B)

---

 /*!
  * jQuery UI Menu 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Menu
 //>>group: Widgets
 //>>description: Creates nestable menus.
 //>>docs: http://api.jqueryui.com/menu/
 //>>demos: http://jqueryui.com/menu/
 //>>css.structure: ../../themes/base/core.css
 //>>css.structure: ../../themes/base/menu.css
 //>>css.theme: ../../themes/base/theme.css
 
 ( function( factory ) {
 	if ( typeof define === "function" && define.amd ) {
 
 		// AMD. Register as an anonymous module.
 		define( [
 			"jquery",
 			"./core"
 		], factory );
 	} else {
 
 		// Browser globals
 		factory( jQuery );
 	}
 }( function( $ ) {
 
 return $.widget( "ui.menu", {
 	version: "1.12.1",
 	defaultElement: "<ul>",
 	delay: 300,
 	options: {
 		icons: {
 			submenu: "ui-icon-caret-1-e"
 		},
 		items: "> *",
 		menus: "ul",
 		position: {
 			my: "left top",
 			at: "right top"
 		},
 		role: "menu",
 
 		// Callbacks
 		blur: null,
 		focus: null,
 		select: null
 	},
 
 	_create: function() {
 		this.activeMenu = this.element;
 
 		// Flag used to prevent firing of the click handler
 		// as the event bubbles up through nested menus
 		this.mouseHandled = false;
 		this.element
 			.uniqueId()
 			.attr( {
 				role: this.options.role,
 				tabIndex: 0
 			} );
 
 		this._addClass( "ui-menu", "ui-widget ui-widget-content" );
 		this._on( {
 
 			// Prevent focus from sticking to links inside menu after clicking
 			// them (focus should always stay on UL during navigation).
 			"mousedown .ui-menu-item": function( event ) {
 				event.preventDefault();
 			},
 			"click .ui-menu-item": function( event ) {
 				var target = $( event.target );
 				var active = $( $.ui.safeActiveElement( this.document[ 0 ] ) );
 				if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) {
 					this.select( event );
 
 					// Only set the mouseHandled flag if the event will bubble, see #9469.
 					if ( !event.isPropagationStopped() ) {
 						this.mouseHandled = true;
 					}
 
 					// Open submenu on click
 					if ( target.has( ".ui-menu" ).length ) {
 						this.expand( event );
 					} else if ( !this.element.is( ":focus" ) &&
 							active.closest( ".ui-menu" ).length ) {
 
 						// Redirect focus to the menu
 						this.element.trigger( "focus", [ true ] );
 
 						// If the active item is on the top level, let it stay active.
 						// Otherwise, blur the active item since it is no longer visible.
 						if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) {
 							clearTimeout( this.timer );
 						}
 					}
 				}
 			},
 			"mouseenter .ui-menu-item": function( event ) {
 
 				// Ignore mouse events while typeahead is active, see #10458.
 				// Prevents focusing the wrong item when typeahead causes a scroll while the mouse
 				// is over an item in the menu
 				if ( this.previousFilter ) {
 					return;
 				}
 
 				var actualTarget = $( event.target ).closest( ".ui-menu-item" ),
 					target = $( event.currentTarget );
 
 				// Ignore bubbled events on parent items, see #11641
 				if ( actualTarget[ 0 ] !== target[ 0 ] ) {
 					return;
 				}
 
 				// Remove ui-state-active class from siblings of the newly focused menu item
 				// to avoid a jump caused by adjacent elements both having a class with a border
 				this._removeClass( target.siblings().children( ".ui-state-active" ),
 					null, "ui-state-active" );
 				this.focus( event, target );
 			},
 			mouseleave: "collapseAll",
 			"mouseleave .ui-menu": "collapseAll",
 			focus: function( event, keepActiveItem ) {
 
 				// If there's already an active item, keep it active
 				// If not, activate the first item
 				var item = this.active || this.element.find( this.options.items ).eq( 0 );
 
 				if ( !keepActiveItem ) {
 					this.focus( event, item );
 				}
 			},
 			blur: function( event ) {
 				this._delay( function() {
 					var notContained = !$.contains(
 						this.element[ 0 ],
 						$.ui.safeActiveElement( this.document[ 0 ] )
 					);
 					if ( notContained ) {
 						this.collapseAll( event );
 					}
 				} );
 			},
 			keydown: "_keydown"
 		} );
 
 		this.refresh();
 
 		// Clicks outside of a menu collapse any open menus
 		this._on( this.document, {
 			click: function( event ) {
 				if ( this._closeOnDocumentClick( event ) ) {
 					this.collapseAll( event );
 				}
 
 				// Reset the mouseHandled flag
 				this.mouseHandled = false;
 			}
 		} );
 	},
 
 	_destroy: function() {
 		var items = this.element.find( ".ui-menu-item" )
 				.removeAttr( "role aria-disabled" ),
 			submenus = items.children( ".ui-menu-item-wrapper" )
 				.removeUniqueId()
 				.removeAttr( "tabIndex role aria-haspopup" );
 
 		// Destroy (sub)menus
 		this.element
 			.removeAttr( "aria-activedescendant" )
 			.find( ".ui-menu" ).addBack()
 				.removeAttr( "role aria-labelledby aria-expanded aria-hidden aria-disabled " +
 					"tabIndex" )
 				.removeUniqueId()
 				.show();
 
 		submenus.children().each( function() {
 			var elem = $( this );
 			if ( elem.data( "ui-menu-submenu-caret" ) ) {
 				elem.remove();
 			}
 		} );
 	},
 
 	_keydown: function( event ) {
 		var match, prev, character, skip,
 			preventDefault = true;
 
 		switch ( event.keyCode ) {
 		case $.ui.keyCode.PAGE_UP:
 			this.previousPage( event );
 			break;
 		case $.ui.keyCode.PAGE_DOWN:
 			this.nextPage( event );
 			break;
 		case $.ui.keyCode.HOME:
 			this._move( "first", "first", event );
 			break;
 		case $.ui.keyCode.END:
 			this._move( "last", "last", event );
 			break;
 		case $.ui.keyCode.UP:
 			this.previous( event );
 			break;
 		case $.ui.keyCode.DOWN:
 			this.next( event );
 			break;
 		case $.ui.keyCode.LEFT:
 			this.collapse( event );
 			break;
 		case $.ui.keyCode.RIGHT:
 			if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
 				this.expand( event );
 			}
 			break;
 		case $.ui.keyCode.ENTER:
 		case $.ui.keyCode.SPACE:
 			this._activate( event );
 			break;
 		case $.ui.keyCode.ESCAPE:
 			this.collapse( event );
 			break;
 		default:
 			preventDefault = false;
 			prev = this.previousFilter || "";
 			skip = false;
 
 			// Support number pad values
 			character = event.keyCode >= 96 && event.keyCode <= 105 ?
 				( event.keyCode - 96 ).toString() : String.fromCharCode( event.keyCode );
 
 			clearTimeout( this.filterTimer );
 
 			if ( character === prev ) {
 				skip = true;
 			} else {
 				character = prev + character;
 			}
 
 			match = this._filterMenuItems( character );
 			match = skip && match.index( this.active.next() ) !== -1 ?
 				this.active.nextAll( ".ui-menu-item" ) :
 				match;
 
 			// If no matches on the current filter, reset to the last character pressed
 			// to move down the menu to the first item that starts with that character
 			if ( !match.length ) {
 				character = String.fromCharCode( event.keyCode );
 				match = this._filterMenuItems( character );
 			}
 
 			if ( match.length ) {
 				this.focus( event, match );
 				this.previousFilter = character;
 				this.filterTimer = this._delay( function() {
 					delete this.previousFilter;
 				}, 1000 );
 			} else {
 				delete this.previousFilter;
 			}
 		}
 
 		if ( preventDefault ) {
 			event.preventDefault();
 		}
 	},
 
 	_activate: function( event ) {
 		if ( this.active && !this.active.is( ".ui-state-disabled" ) ) {
 			if ( this.active.children( "[aria-haspopup='true']" ).length ) {
 				this.expand( event );
 			} else {
 				this.select( event );
 			}
 		}
 	},
 
 	refresh: function() {
 		var menus, items, newSubmenus, newItems, newWrappers,
 			that = this,
 			icon = this.options.icons.submenu,
 			submenus = this.element.find( this.options.menus );
 
 		this._toggleClass( "ui-menu-icons", null, !!this.element.find( ".ui-icon" ).length );
 
 		// Initialize nested menus
 		newSubmenus = submenus.filter( ":not(.ui-menu)" )
 			.hide()
 			.attr( {
 				role: this.options.role,
 				"aria-hidden": "true",
 				"aria-expanded": "false"
 			} )
 			.each( function() {
 				var menu = $( this ),
 					item = menu.prev(),
 					submenuCaret = $( "<span>" ).data( "ui-menu-submenu-caret", true );
 
 				that._addClass( submenuCaret, "ui-menu-icon", "ui-icon " + icon );
 				item
 					.attr( "aria-haspopup", "true" )
 					.prepend( submenuCaret );
 				menu.attr( "aria-labelledby", item.attr( "id" ) );
 			} );
 
 		this._addClass( newSubmenus, "ui-menu", "ui-widget ui-widget-content ui-front" );
 
 		menus = submenus.add( this.element );
 		items = menus.find( this.options.items );
 
 		// Initialize menu-items containing spaces and/or dashes only as dividers
 		items.not( ".ui-menu-item" ).each( function() {
 			var item = $( this );
 			if ( that._isDivider( item ) ) {
 				that._addClass( item, "ui-menu-divider", "ui-widget-content" );
 			}
 		} );
 
 		// Don't refresh list items that are already adapted
 		newItems = items.not( ".ui-menu-item, .ui-menu-divider" );
 		newWrappers = newItems.children()
 			.not( ".ui-menu" )
 				.uniqueId()
 				.attr( {
 					tabIndex: -1,
 					role: this._itemRole()
 				} );
 		this._addClass( newItems, "ui-menu-item" )
 			._addClass( newWrappers, "ui-menu-item-wrapper" );
 
 		// Add aria-disabled attribute to any disabled menu item
 		items.filter( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
 
 		// If the active item has been removed, blur the menu
 		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
 			this.blur();
 		}
 	},
 
 	_itemRole: function() {
 		return {
 			menu: "menuitem",
 			listbox: "option"
 		}[ this.options.role ];
 	},
 
 	_setOption: function( key, value ) {
 		if ( key === "icons" ) {
 			var icons = this.element.find( ".ui-menu-icon" );
 			this._removeClass( icons, null, this.options.icons.submenu )
 				._addClass( icons, null, value.submenu );
 		}
 		this._super( key, value );
 	},
 
 	_setOptionDisabled: function( value ) {
 		this._super( value );
 
 		this.element.attr( "aria-disabled", String( value ) );
 		this._toggleClass( null, "ui-state-disabled", !!value );
 	},
 
 	focus: function( event, item ) {
 		var nested, focused, activeParent;
 		this.blur( event, event && event.type === "focus" );
 
 		this._scrollIntoView( item );
 
 		this.active = item.first();
 
 		focused = this.active.children( ".ui-menu-item-wrapper" );
 		this._addClass( focused, null, "ui-state-active" );
 
 		// Only update aria-activedescendant if there's a role
 		// otherwise we assume focus is managed elsewhere
 		if ( this.options.role ) {
 			this.element.attr( "aria-activedescendant", focused.attr( "id" ) );
 		}
 
 		// Highlight active parent menu item, if any
 		activeParent = this.active
 			.parent()
 				.closest( ".ui-menu-item" )
 					.children( ".ui-menu-item-wrapper" );
 		this._addClass( activeParent, null, "ui-state-active" );
 
 		if ( event && event.type === "keydown" ) {
 			this._close();
 		} else {
 			this.timer = this._delay( function() {
 				this._close();
 			}, this.delay );
 		}
 
 		nested = item.children( ".ui-menu" );
 		if ( nested.length && event && ( /^mouse/.test( event.type ) ) ) {
 			this._startOpening( nested );
 		}
 		this.activeMenu = item.parent();
 
 		this._trigger( "focus", event, { item: item } );
 	},
 
 	_scrollIntoView: function( item ) {
 		var borderTop, paddingTop, offset, scroll, elementHeight, itemHeight;
 		if ( this._hasScroll() ) {
 			borderTop = parseFloat( $.css( this.activeMenu[ 0 ], "borderTopWidth" ) ) || 0;
 			paddingTop = parseFloat( $.css( this.activeMenu[ 0 ], "paddingTop" ) ) || 0;
 			offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop;
 			scroll = this.activeMenu.scrollTop();
 			elementHeight = this.activeMenu.height();
 			itemHeight = item.outerHeight();
 
 			if ( offset < 0 ) {
 				this.activeMenu.scrollTop( scroll + offset );
 			} else if ( offset + itemHeight > elementHeight ) {
 				this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
 			}
 		}
 	},
 
 	blur: function( event, fromFocus ) {
 		if ( !fromFocus ) {
 			clearTimeout( this.timer );
 		}
 
 		if ( !this.active ) {
 			return;
 		}
 
 		this._removeClass( this.active.children( ".ui-menu-item-wrapper" ),
 			null, "ui-state-active" );
 
 		this._trigger( "blur", event, { item: this.active } );
 		this.active = null;
 	},
 
 	_startOpening: function( submenu ) {
 		clearTimeout( this.timer );
 
 		// Don't open if already open fixes a Firefox bug that caused a .5 pixel
 		// shift in the submenu position when mousing over the caret icon
 		if ( submenu.attr( "aria-hidden" ) !== "true" ) {
 			return;
 		}
 
 		this.timer = this._delay( function() {
 			this._close();
 			this._open( submenu );
 		}, this.delay );
 	},
 
 	_open: function( submenu ) {
 		var position = $.extend( {
 			of: this.active
 		}, this.options.position );
 
 		clearTimeout( this.timer );
 		this.element.find( ".ui-menu" ).not( submenu.parents( ".ui-menu" ) )
 			.hide()
 			.attr( "aria-hidden", "true" );
 
 		submenu
 			.show()
 			.removeAttr( "aria-hidden" )
 			.attr( "aria-expanded", "true" )
 			.position( position );
 	},
 
 	collapseAll: function( event, all ) {
 		clearTimeout( this.timer );
 		this.timer = this._delay( function() {
 
 			// If we were passed an event, look for the submenu that contains the event
 			var currentMenu = all ? this.element :
 				$( event && event.target ).closest( this.element.find( ".ui-menu" ) );
 
 			// If we found no valid submenu ancestor, use the main menu to close all
 			// sub menus anyway
 			if ( !currentMenu.length ) {
 				currentMenu = this.element;
 			}
 
 			this._close( currentMenu );
 
 			this.blur( event );
 
 			// Work around active item staying active after menu is blurred
 			this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" );
 
 			this.activeMenu = currentMenu;
 		}, this.delay );
 	},
 
 	// With no arguments, closes the currently active menu - if nothing is active
 	// it closes all menus.  If passed an argument, it will search for menus BELOW
 	_close: function( startMenu ) {
 		if ( !startMenu ) {
 			startMenu = this.active ? this.active.parent() : this.element;
 		}
 
 		startMenu.find( ".ui-menu" )
 			.hide()
 			.attr( "aria-hidden", "true" )
 			.attr( "aria-expanded", "false" );
 	},
 
 	_closeOnDocumentClick: function( event ) {
 		return !$( event.target ).closest( ".ui-menu" ).length;
 	},
 
 	_isDivider: function( item ) {
 
 		// Match hyphen, em dash, en dash
 		return !/[^\-\u2014\u2013\s]/.test( item.text() );
 	},
 
 	collapse: function( event ) {
 		var newItem = this.active &&
 			this.active.parent().closest( ".ui-menu-item", this.element );
 		if ( newItem && newItem.length ) {
 			this._close();
 			this.focus( event, newItem );
 		}
 	},
 
 	expand: function( event ) {
 		var newItem = this.active &&
 			this.active
 				.children( ".ui-menu " )
 					.find( this.options.items )
 						.first();
 
 		if ( newItem && newItem.length ) {
 			this._open( newItem.parent() );
 
 			// Delay so Firefox will not hide activedescendant change in expanding submenu from AT
 			this._delay( function() {
 				this.focus( event, newItem );
 			} );
 		}
 	},
 
 	next: function( event ) {
 		this._move( "next", "first", event );
 	},
 
 	previous: function( event ) {
 		this._move( "prev", "last", event );
 	},
 
 	isFirstItem: function() {
 		return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
 	},
 
 	isLastItem: function() {
 		return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
 	},
 
 	_move: function( direction, filter, event ) {
 		var next;
 		if ( this.active ) {
 			if ( direction === "first" || direction === "last" ) {
 				next = this.active
 					[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" )
 					.eq( -1 );
 			} else {
 				next = this.active
 					[ direction + "All" ]( ".ui-menu-item" )
 					.eq( 0 );
 			}
 		}
 		if ( !next || !next.length || !this.active ) {
 			next = this.activeMenu.find( this.options.items )[ filter ]();
 		}
 
 		this.focus( event, next );
 	},
 
 	nextPage: function( event ) {
 		var item, base, height;
 
 		if ( !this.active ) {
 			this.next( event );
 			return;
 		}
 		if ( this.isLastItem() ) {
 			return;
 		}
 		if ( this._hasScroll() ) {
 			base = this.active.offset().top;
 			height = this.element.height();
 			this.active.nextAll( ".ui-menu-item" ).each( function() {
 				item = $( this );
 				return item.offset().top - base - height < 0;
 			} );
 
 			this.focus( event, item );
 		} else {
 			this.focus( event, this.activeMenu.find( this.options.items )
 				[ !this.active ? "first" : "last" ]() );
 		}
 	},
 
 	previousPage: function( event ) {
 		var item, base, height;
 		if ( !this.active ) {
 			this.next( event );
 			return;
 		}
 		if ( this.isFirstItem() ) {
 			return;
 		}
 		if ( this._hasScroll() ) {
 			base = this.active.offset().top;
 			height = this.element.height();
 			this.active.prevAll( ".ui-menu-item" ).each( function() {
 				item = $( this );
 				return item.offset().top - base + height > 0;
 			} );
 
 			this.focus( event, item );
 		} else {
 			this.focus( event, this.activeMenu.find( this.options.items ).first() );
 		}
 	},
 
 	_hasScroll: function() {
 		return this.element.outerHeight() < this.element.prop( "scrollHeight" );
 	},
 
 	select: function( event ) {
 
 		// TODO: It should never be possible to not have an active item at this
 		// point, but the tests don't trigger mouseenter before click.
 		this.active = this.active || $( event.target ).closest( ".ui-menu-item" );
 		var ui = { item: this.active };
 		if ( !this.active.has( ".ui-menu" ).length ) {
 			this.collapseAll( event, true );
 		}
 		this._trigger( "select", event, ui );
 	},
 
 	_filterMenuItems: function( character ) {
 		var escapedCharacter = character.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" ),
 			regex = new RegExp( "^" + escapedCharacter, "i" );
 
 		return this.activeMenu
 			.find( this.options.items )
 
 				// Only match on items, not dividers or other content (#10571)
 				.filter( ".ui-menu-item" )
 					.filter( function() {
 						return regex.test(
 							$.trim( $( this ).children( ".ui-menu-item-wrapper" ).text() ) );
 					} );
 	}
 } );
 
 } ) );