--- /dev/null
+/*!
+ * 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 ));
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