X-Git-Url: https://scripts.mit.edu/gitweb/autoinstallsdev/mediawiki.git/blobdiff_plain/19e297c21b10b1b8a3acad5e73fc71dcb35db44a..6932310fd58ebef145fa01eb76edf7150284d8ea:/resources/lib/jquery.ui/jquery.ui.menu.js

diff --git a/resources/lib/jquery.ui/jquery.ui.menu.js b/resources/lib/jquery.ui/jquery.ui.menu.js
new file mode 100644
index 00000000..6342f2d3
--- /dev/null
+++ b/resources/lib/jquery.ui/jquery.ui.menu.js
@@ -0,0 +1,610 @@
+/*!
+ * jQuery UI Menu 1.9.2
+ * http://jqueryui.com
+ *
+ * Copyright 2012 jQuery Foundation and other contributors
+ * Released under the MIT license.
+ * http://jquery.org/license
+ *
+ * http://api.jqueryui.com/menu/
+ *
+ * Depends:
+ *	jquery.ui.core.js
+ *	jquery.ui.widget.js
+ *	jquery.ui.position.js
+ */
+(function( $, undefined ) {
+
+var mouseHandled = false;
+
+$.widget( "ui.menu", {
+	version: "1.9.2",
+	defaultElement: "<ul>",
+	delay: 300,
+	options: {
+		icons: {
+			submenu: "ui-icon-carat-1-e"
+		},
+		menus: "ul",
+		position: {
+			my: "left top",
+			at: "right top"
+		},
+		role: "menu",
+
+		// callbacks
+		blur: null,
+		focus: null,
+		select: null
+	},
+
+	_create: function() {
+		this.activeMenu = this.element;
+		this.element
+			.uniqueId()
+			.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
+			.toggleClass( "ui-menu-icons", !!this.element.find( ".ui-icon" ).length )
+			.attr({
+				role: this.options.role,
+				tabIndex: 0
+			})
+			// need to catch all clicks on disabled menu
+			// not possible through _on
+			.bind( "click" + this.eventNamespace, $.proxy(function( event ) {
+				if ( this.options.disabled ) {
+					event.preventDefault();
+				}
+			}, this ));
+
+		if ( this.options.disabled ) {
+			this.element
+				.addClass( "ui-state-disabled" )
+				.attr( "aria-disabled", "true" );
+		}
+
+		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 > a": function( event ) {
+				event.preventDefault();
+			},
+			"click .ui-state-disabled > a": function( event ) {
+				event.preventDefault();
+			},
+			"click .ui-menu-item:has(a)": function( event ) {
+				var target = $( event.target ).closest( ".ui-menu-item" );
+				if ( !mouseHandled && target.not( ".ui-state-disabled" ).length ) {
+					mouseHandled = true;
+
+					this.select( event );
+					// Open submenu on click
+					if ( target.has( ".ui-menu" ).length ) {
+						this.expand( event );
+					} else if ( !this.element.is( ":focus" ) ) {
+						// 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 ) {
+				var target = $( event.currentTarget );
+				// Remove ui-state-active class from siblings of the newly focused menu item
+				// to avoid a jump caused by adjacent elements both having a class with a border
+				target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
+				this.focus( event, target );
+			},
+			mouseleave: "collapseAll",
+			"mouseleave .ui-menu": "collapseAll",
+			focus: function( event, keepActiveItem ) {
+				// If there's already an active item, keep it active
+				// If not, activate the first item
+				var item = this.active || this.element.children( ".ui-menu-item" ).eq( 0 );
+
+				if ( !keepActiveItem ) {
+					this.focus( event, item );
+				}
+			},
+			blur: function( event ) {
+				this._delay(function() {
+					if ( !$.contains( this.element[0], this.document[0].activeElement ) ) {
+						this.collapseAll( event );
+					}
+				});
+			},
+			keydown: "_keydown"
+		});
+
+		this.refresh();
+
+		// Clicks outside of a menu collapse any open menus
+		this._on( this.document, {
+			click: function( event ) {
+				if ( !$( event.target ).closest( ".ui-menu" ).length ) {
+					this.collapseAll( event );
+				}
+
+				// Reset the mouseHandled flag
+				mouseHandled = false;
+			}
+		});
+	},
+
+	_destroy: function() {
+		// Destroy (sub)menus
+		this.element
+			.removeAttr( "aria-activedescendant" )
+			.find( ".ui-menu" ).andSelf()
+				.removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all ui-menu-icons" )
+				.removeAttr( "role" )
+				.removeAttr( "tabIndex" )
+				.removeAttr( "aria-labelledby" )
+				.removeAttr( "aria-expanded" )
+				.removeAttr( "aria-hidden" )
+				.removeAttr( "aria-disabled" )
+				.removeUniqueId()
+				.show();
+
+		// Destroy menu items
+		this.element.find( ".ui-menu-item" )
+			.removeClass( "ui-menu-item" )
+			.removeAttr( "role" )
+			.removeAttr( "aria-disabled" )
+			.children( "a" )
+				.removeUniqueId()
+				.removeClass( "ui-corner-all ui-state-hover" )
+				.removeAttr( "tabIndex" )
+				.removeAttr( "role" )
+				.removeAttr( "aria-haspopup" )
+				.children().each( function() {
+					var elem = $( this );
+					if ( elem.data( "ui-menu-submenu-carat" ) ) {
+						elem.remove();
+					}
+				});
+
+		// Destroy menu dividers
+		this.element.find( ".ui-menu-divider" ).removeClass( "ui-menu-divider ui-widget-content" );
+	},
+
+	_keydown: function( event ) {
+		var match, prev, character, skip, regex,
+			preventDefault = true;
+
+		function escape( value ) {
+			return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );
+		}
+
+		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 || "";
+			character = String.fromCharCode( event.keyCode );
+			skip = false;
+
+			clearTimeout( this.filterTimer );
+
+			if ( character === prev ) {
+				skip = true;
+			} else {
+				character = prev + character;
+			}
+
+			regex = new RegExp( "^" + escape( character ), "i" );
+			match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
+				return regex.test( $( this ).children( "a" ).text() );
+			});
+			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 );
+				regex = new RegExp( "^" + escape( character ), "i" );
+				match = this.activeMenu.children( ".ui-menu-item" ).filter(function() {
+					return regex.test( $( this ).children( "a" ).text() );
+				});
+			}
+
+			if ( match.length ) {
+				this.focus( event, match );
+				if ( match.length > 1 ) {
+					this.previousFilter = character;
+					this.filterTimer = this._delay(function() {
+						delete this.previousFilter;
+					}, 1000 );
+				} else {
+					delete this.previousFilter;
+				}
+			} else {
+				delete this.previousFilter;
+			}
+		}
+
+		if ( preventDefault ) {
+			event.preventDefault();
+		}
+	},
+
+	_activate: function( event ) {
+		if ( !this.active.is( ".ui-state-disabled" ) ) {
+			if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
+				this.expand( event );
+			} else {
+				this.select( event );
+			}
+		}
+	},
+
+	refresh: function() {
+		var menus,
+			icon = this.options.icons.submenu,
+			submenus = this.element.find( this.options.menus );
+
+		// Initialize nested menus
+		submenus.filter( ":not(.ui-menu)" )
+			.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
+			.hide()
+			.attr({
+				role: this.options.role,
+				"aria-hidden": "true",
+				"aria-expanded": "false"
+			})
+			.each(function() {
+				var menu = $( this ),
+					item = menu.prev( "a" ),
+					submenuCarat = $( "<span>" )
+						.addClass( "ui-menu-icon ui-icon " + icon )
+						.data( "ui-menu-submenu-carat", true );
+
+				item
+					.attr( "aria-haspopup", "true" )
+					.prepend( submenuCarat );
+				menu.attr( "aria-labelledby", item.attr( "id" ) );
+			});
+
+		menus = submenus.add( this.element );
+
+		// Don't refresh list items that are already adapted
+		menus.children( ":not(.ui-menu-item):has(a)" )
+			.addClass( "ui-menu-item" )
+			.attr( "role", "presentation" )
+			.children( "a" )
+				.uniqueId()
+				.addClass( "ui-corner-all" )
+				.attr({
+					tabIndex: -1,
+					role: this._itemRole()
+				});
+
+		// Initialize unlinked menu-items containing spaces and/or dashes only as dividers
+		menus.children( ":not(.ui-menu-item)" ).each(function() {
+			var item = $( this );
+			// hyphen, em dash, en dash
+			if ( !/[^\-—–\s]/.test( item.text() ) ) {
+				item.addClass( "ui-widget-content ui-menu-divider" );
+			}
+		});
+
+		// Add aria-disabled attribute to any disabled menu item
+		menus.children( ".ui-state-disabled" ).attr( "aria-disabled", "true" );
+
+		// If the active item has been removed, blur the menu
+		if ( this.active && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
+			this.blur();
+		}
+	},
+
+	_itemRole: function() {
+		return {
+			menu: "menuitem",
+			listbox: "option"
+		}[ this.options.role ];
+	},
+
+	focus: function( event, item ) {
+		var nested, focused;
+		this.blur( event, event && event.type === "focus" );
+
+		this._scrollIntoView( item );
+
+		this.active = item.first();
+		focused = this.active.children( "a" ).addClass( "ui-state-focus" );
+		// 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
+		this.active
+			.parent()
+			.closest( ".ui-menu-item" )
+			.children( "a:first" )
+			.addClass( "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 && ( /^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.height();
+
+			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.active.children( "a" ).removeClass( "ui-state-focus" );
+		this.active = null;
+
+		this._trigger( "blur", event, { item: this.active } );
+	},
+
+	_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 carat 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 );
+			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" )
+			.end()
+			.find( "a.ui-state-active" )
+				.removeClass( "ui-state-active" );
+	},
+
+	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 " )
+				.children( ".ui-menu-item" )
+				.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.children( ".ui-menu-item" )[ 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.children( ".ui-menu-item" )
+				[ !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.children( ".ui-menu-item" ).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 );
+	}
+});
+
+}( jQuery ));