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Editing: menu.js
/*! * jQuery UI Menu 1.14.2 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Menu //>>group: Widgets //>>description: Creates nestable menus. //>>docs: https://api.jqueryui.com/menu/ //>>demos: https://jqueryui.com/menu/ //>>css.structure: ../../themes/base/core.css //>>css.structure: ../../themes/base/menu.css //>>css.theme: ../../themes/base/theme.css ( function( factory ) { "use strict"; if ( typeof define === "function" && define.amd ) { // AMD. Register as an anonymous module. define( [ "jquery", "../keycode", "../position", "../unique-id", "../version", "../widget" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; return $.widget( "ui.menu", { version: "1.14.2", 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.lastMousePosition = { x: null, y: null }; 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(); this._activateItem( event ); }, "click .ui-menu-item": function( event ) { var target = $( event.target ); var active = $( this.document[ 0 ].activeElement ); if ( !this.mouseHandled && target.not( ".ui-state-disabled" ).length ) { this.select( event ); // Only set the mouseHandled flag if the event will bubble, see #9469. if ( !event.isPropagationStopped() ) { this.mouseHandled = true; } // Open submenu on click if ( target.has( ".ui-menu" ).length ) { this.expand( event ); } else if ( !this.element.is( ":focus" ) && active.closest( ".ui-menu" ).length ) { // Redirect focus to the menu this.element.trigger( "focus", [ true ] ); // If the active item is on the top level, let it stay active. // Otherwise, blur the active item since it is no longer visible. if ( this.active && this.active.parents( ".ui-menu" ).length === 1 ) { clearTimeout( this.timer ); } } } }, "mouseenter .ui-menu-item": "_activateItem", "mousemove .ui-menu-item": "_activateItem", mouseleave: "collapseAll", "mouseleave .ui-menu": "collapseAll", focus: function( event, keepActiveItem ) { // If there's already an active item, keep it active // If not, activate the first item var item = this.active || this._menuItems().first(); if ( !keepActiveItem ) { this.focus( event, item ); } }, blur: function( event ) { this._delay( function() { var notContained = !$.contains( this.element[ 0 ], this.document[ 0 ].activeElement ); 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, true ); } // Reset the mouseHandled flag this.mouseHandled = false; } } ); }, _activateItem: 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; } // If the mouse didn't actually move, but the page was scrolled, ignore the event (#9356) if ( event.clientX === this.lastMousePosition.x && event.clientY === this.lastMousePosition.y ) { return; } this.lastMousePosition = { x: event.clientX, y: event.clientY }; 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; } // If the item is already active, there's nothing to do if ( target.is( ".ui-state-active" ) ) { 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 ); }, _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 : $( event && event.target ).closest( this.element.find( ".ui-menu" ) ); // If we found no valid submenu ancestor, use the main menu to close all // sub menus anyway if ( !currentMenu.length ) { currentMenu = this.element; } this._close( currentMenu ); this.blur( event ); // Work around active item staying active after menu is blurred this._removeClass( currentMenu.find( ".ui-state-active" ), null, "ui-state-active" ); this.activeMenu = currentMenu; }, all ? 0 : this.delay ); }, // With no arguments, closes the currently active menu - if nothing is active // it closes all menus. If passed an argument, it will search for menus BELOW _close: function( startMenu ) { if ( !startMenu ) { startMenu = this.active ? this.active.parent() : this.element; } startMenu.find( ".ui-menu" ) .hide() .attr( "aria-hidden", "true" ) .attr( "aria-expanded", "false" ); }, _closeOnDocumentClick: function( event ) { return !$( 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._menuItems( this.active.children( ".ui-menu" ) ).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; }, _menuItems: function( menu ) { return ( menu || this.element ) .find( this.options.items ) .filter( ".ui-menu-item" ); }, _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" ) .last(); } else { next = this.active [ direction + "All" ]( ".ui-menu-item" ) .first(); } } if ( !next || !next.length || !this.active ) { next = this._menuItems( this.activeMenu )[ 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.innerHeight(); // jQuery 3.2 doesn't include scrollbars in innerHeight, add it back. if ( $.fn.jquery.indexOf( "3.2." ) === 0 ) { height += this.element[ 0 ].offsetHeight - this.element.outerHeight(); } 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._menuItems( this.activeMenu ) [ !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.innerHeight(); // jQuery 3.2 doesn't include scrollbars in innerHeight, add it back. if ( $.fn.jquery.indexOf( "3.2." ) === 0 ) { height += this.element[ 0 ].offsetHeight - this.element.outerHeight(); } 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._menuItems( this.activeMenu ).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( String.prototype.trim.call( $( this ).children( ".ui-menu-item-wrapper" ).text() ) ); } ); } } ); } );
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