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Edit File: selectmenu.js

/*! * jQuery UI Selectmenu 1.14.2 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Selectmenu //>>group: Widgets //>>description: Duplicates and extends the functionality of a native HTML select element, allowing it to be customizable in behavior and appearance far beyond the limitations of a native select. //>>docs: https://api.jqueryui.com/selectmenu/ //>>demos: https://jqueryui.com/selectmenu/ //>>css.structure: ../../themes/base/core.css //>>css.structure: ../../themes/base/selectmenu.css, ../../themes/base/button.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", "./menu", "../form-reset-mixin", "../keycode", "../labels", "../position", "../unique-id", "../version", "../widget" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; return $.widget( "ui.selectmenu", [ $.ui.formResetMixin, { version: "1.14.2", defaultElement: "<select>", options: { appendTo: null, classes: { "ui-selectmenu-button-open": "ui-corner-top", "ui-selectmenu-button-closed": "ui-corner-all" }, disabled: null, icons: { button: "ui-icon-triangle-1-s" }, position: { my: "left top", at: "left bottom", collision: "none" }, width: false, // Callbacks change: null, close: null, focus: null, open: null, select: null }, _create: function() { var selectmenuId = this.element.uniqueId().attr( "id" ); this.ids = { element: selectmenuId, button: selectmenuId + "-button", menu: selectmenuId + "-menu" }; this._drawButton(); this._drawMenu(); this._bindFormResetHandler(); this._rendered = false; this.menuItems = $(); }, _drawButton: function() { var icon, that = this, item = this._parseOption( this.element.find( "option:selected" ), this.element[ 0 ].selectedIndex ); // Associate existing label with the new button this.labels = this.element.labels().attr( "for", this.ids.button ); this._on( this.labels, { click: function( event ) { this.button.trigger( "focus" ); event.preventDefault(); } } ); // Hide original select element this.element.hide(); // Create button this.button = $( "<span>", { tabindex: this.options.disabled ? -1 : 0, id: this.ids.button, role: "combobox", "aria-expanded": "false", "aria-autocomplete": "list", "aria-owns": this.ids.menu, "aria-haspopup": "true", title: this.element.attr( "title" ) } ) .insertAfter( this.element ); this._addClass( this.button, "ui-selectmenu-button ui-selectmenu-button-closed", "ui-button ui-widget" ); icon = $( "<span>" ).appendTo( this.button ); this._addClass( icon, "ui-selectmenu-icon", "ui-icon " + this.options.icons.button ); this.buttonItem = this._renderButtonItem( item ) .appendTo( this.button ); if ( this.options.width !== false ) { this._resizeButton(); } this._on( this.button, this._buttonEvents ); this.button.one( "focusin", function() { // Delay rendering the menu items until the button receives focus. // The menu may have already been rendered via a programmatic open. if ( !that._rendered ) { that._refreshMenu(); } } ); }, _drawMenu: function() { var that = this; // Create menu this.menu = $( "<ul>", { "aria-hidden": "true", "aria-labelledby": this.ids.button, id: this.ids.menu } ); // Wrap menu this.menuWrap = $( "<div>" ).append( this.menu ); this._addClass( this.menuWrap, "ui-selectmenu-menu", "ui-front" ); this.menuWrap.appendTo( this._appendTo() ); // Initialize menu widget this.menuInstance = this.menu .menu( { classes: { "ui-menu": "ui-corner-bottom" }, role: "listbox", select: function( event, ui ) { event.preventDefault(); that._select( ui.item.data( "ui-selectmenu-item" ), event ); }, focus: function( event, ui ) { var item = ui.item.data( "ui-selectmenu-item" ); // Prevent inital focus from firing and check if its a newly focused item if ( that.focusIndex != null && item.index !== that.focusIndex ) { that._trigger( "focus", event, { item: item } ); if ( !that.isOpen ) { that._select( item, event ); } } that.focusIndex = item.index; that.button.attr( "aria-activedescendant", that.menuItems.eq( item.index ).attr( "id" ) ); } } ) .menu( "instance" ); // Don't close the menu on mouseleave this.menuInstance._off( this.menu, "mouseleave" ); // Cancel the menu's collapseAll on document click this.menuInstance._closeOnDocumentClick = function() { return false; }; // Selects often contain empty items, but never contain dividers this.menuInstance._isDivider = function() { return false; }; }, refresh: function() { this._refreshMenu(); this.buttonItem.replaceWith( this.buttonItem = this._renderButtonItem( // Fall back to an empty object in case there are no options this._getSelectedItem().data( "ui-selectmenu-item" ) || {} ) ); if ( this.options.width === null ) { this._resizeButton(); } }, _refreshMenu: function() { var item, options = this.element.find( "option" ); this.menu.empty(); this._parseOptions( options ); this._renderMenu( this.menu, this.items ); this.menuInstance.refresh(); this.menuItems = this.menu.find( "li" ) .not( ".ui-selectmenu-optgroup" ) .find( ".ui-menu-item-wrapper" ); this._rendered = true; if ( !options.length ) { return; } item = this._getSelectedItem(); // Update the menu to have the correct item focused this.menuInstance.focus( null, item ); this._setAria( item.data( "ui-selectmenu-item" ) ); // Set disabled state this._setOption( "disabled", this.element.prop( "disabled" ) ); }, open: function( event ) { if ( this.options.disabled ) { return; } // If this is the first time the menu is being opened, render the items if ( !this._rendered ) { this._refreshMenu(); } else { // Menu clears focus on close, reset focus to selected item this._removeClass( this.menu.find( ".ui-state-active" ), null, "ui-state-active" ); this.menuInstance.focus( null, this._getSelectedItem() ); } // If there are no options, don't open the menu if ( !this.menuItems.length ) { return; } this.isOpen = true; this._toggleAttr(); this._resizeMenu(); this._position(); this._on( this.document, this._documentClick ); this._trigger( "open", event ); }, _position: function() { this.menuWrap.position( $.extend( { of: this.button }, this.options.position ) ); }, close: function( event ) { if ( !this.isOpen ) { return; } this.isOpen = false; this._toggleAttr(); this.range = null; this._off( this.document ); this._trigger( "close", event ); }, widget: function() { return this.button; }, menuWidget: function() { return this.menu; }, _renderButtonItem: function( item ) { var buttonItem = $( "<span>" ); this._setText( buttonItem, item.label ); this._addClass( buttonItem, "ui-selectmenu-text" ); return buttonItem; }, _renderMenu: function( ul, items ) { var that = this, currentOptgroup = ""; $.each( items, function( index, item ) { var li; if ( item.optgroup !== currentOptgroup ) { li = $( "<li>", { text: item.optgroup } ); that._addClass( li, "ui-selectmenu-optgroup", "ui-menu-divider" + ( item.element.parent( "optgroup" ).prop( "disabled" ) ? " ui-state-disabled" : "" ) ); li.appendTo( ul ); currentOptgroup = item.optgroup; } that._renderItemData( ul, item ); } ); }, _renderItemData: function( ul, item ) { return this._renderItem( ul, item ).data( "ui-selectmenu-item", item ); }, _renderItem: function( ul, item ) { var li = $( "<li>" ), wrapper = $( "<div>", { title: item.element.attr( "title" ) } ); if ( item.disabled ) { this._addClass( li, null, "ui-state-disabled" ); } if ( item.hidden ) { li.prop( "hidden", true ); } else { this._setText( wrapper, item.label ); } return li.append( wrapper ).appendTo( ul ); }, _setText: function( element, value ) { if ( value ) { element.text( value ); } else { element.html( "&#160;" ); } }, _move: function( direction, event ) { var item, next, filter = ".ui-menu-item"; if ( this.isOpen ) { item = this.menuItems.eq( this.focusIndex ).parent( "li" ); } else { item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" ); filter += ":not(.ui-state-disabled)"; } if ( direction === "first" || direction === "last" ) { next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 ); } else { next = item[ direction + "All" ]( filter ).eq( 0 ); } if ( next.length ) { this.menuInstance.focus( event, next ); } }, _getSelectedItem: function() { return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" ); }, _toggle: function( event ) { this[ this.isOpen ? "close" : "open" ]( event ); }, _setSelection: function() { var selection; if ( !this.range ) { return; } selection = window.getSelection(); selection.removeAllRanges(); selection.addRange( this.range ); }, _documentClick: { mousedown: function( event ) { if ( !this.isOpen ) { return; } if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" + CSS.escape( this.ids.button ) ).length ) { this.close( event ); } } }, _buttonEvents: { // Prevent text selection from being reset when interacting with the selectmenu (#10144) mousedown: function() { var selection = window.getSelection(); if ( selection.rangeCount ) { this.range = selection.getRangeAt( 0 ); } }, click: function( event ) { this._setSelection(); this._toggle( event ); }, keydown: function( event ) { var preventDefault = true; switch ( event.keyCode ) { case $.ui.keyCode.TAB: case $.ui.keyCode.ESCAPE: this.close( event ); preventDefault = false; break; case $.ui.keyCode.ENTER: if ( this.isOpen ) { this._selectFocusedItem( event ); } break; case $.ui.keyCode.UP: if ( event.altKey ) { this._toggle( event ); } else { this._move( "prev", event ); } break; case $.ui.keyCode.DOWN: if ( event.altKey ) { this._toggle( event ); } else { this._move( "next", event ); } break; case $.ui.keyCode.SPACE: if ( this.isOpen ) { this._selectFocusedItem( event ); } else { this._toggle( event ); } break; case $.ui.keyCode.LEFT: this._move( "prev", event ); break; case $.ui.keyCode.RIGHT: this._move( "next", event ); break; case $.ui.keyCode.HOME: case $.ui.keyCode.PAGE_UP: this._move( "first", event ); break; case $.ui.keyCode.END: case $.ui.keyCode.PAGE_DOWN: this._move( "last", event ); break; default: this.menu.trigger( event ); preventDefault = false; } if ( preventDefault ) { event.preventDefault(); } } }, _selectFocusedItem: function( event ) { var item = this.menuItems.eq( this.focusIndex ).parent( "li" ); if ( !item.hasClass( "ui-state-disabled" ) ) { this._select( item.data( "ui-selectmenu-item" ), event ); } }, _select: function( item, event ) { var oldIndex = this.element[ 0 ].selectedIndex; // Change native select element this.element[ 0 ].selectedIndex = item.index; this.buttonItem.replaceWith( this.buttonItem = this._renderButtonItem( item ) ); this._setAria( item ); this._trigger( "select", event, { item: item } ); if ( item.index !== oldIndex ) { this._trigger( "change", event, { item: item } ); } this.close( event ); }, _setAria: function( item ) { var id = this.menuItems.eq( item.index ).attr( "id" ); this.button.attr( { "aria-labelledby": id, "aria-activedescendant": id } ); this.menu.attr( "aria-activedescendant", id ); }, _setOption: function( key, value ) { if ( key === "icons" ) { var icon = this.button.find( "span.ui-icon" ); this._removeClass( icon, null, this.options.icons.button ) ._addClass( icon, null, value.button ); } this._super( key, value ); if ( key === "appendTo" ) { this.menuWrap.appendTo( this._appendTo() ); } if ( key === "width" ) { this._resizeButton(); } }, _setOptionDisabled: function( value ) { this._super( value ); this.menuInstance.option( "disabled", value ); this.button.attr( "aria-disabled", value ); this._toggleClass( this.button, null, "ui-state-disabled", value ); this.element.prop( "disabled", value ); if ( value ) { this.button.attr( "tabindex", -1 ); this.close(); } else { this.button.attr( "tabindex", 0 ); } }, _appendTo: function() { var element = this.options.appendTo; if ( element ) { element = element.jquery || element.nodeType ? $( element ) : this.document.find( element ).eq( 0 ); } if ( !element || !element[ 0 ] ) { element = this.element.closest( ".ui-front, dialog" ); } if ( !element.length ) { element = this.document[ 0 ].body; } return element; }, _toggleAttr: function() { this.button.attr( "aria-expanded", this.isOpen ); // We can't use two _toggleClass() calls here, because we need to make sure // we always remove classes first and add them second, otherwise if both classes have the // same theme class, it will be removed after we add it. this._removeClass( this.button, "ui-selectmenu-button-" + ( this.isOpen ? "closed" : "open" ) ) ._addClass( this.button, "ui-selectmenu-button-" + ( this.isOpen ? "open" : "closed" ) ) ._toggleClass( this.menuWrap, "ui-selectmenu-open", null, this.isOpen ); this.menu.attr( "aria-hidden", !this.isOpen ); }, _resizeButton: function() { var width = this.options.width; // For `width: false`, just remove inline style and stop if ( width === false ) { this.button.css( "width", "" ); return; } // For `width: null`, match the width of the original element if ( width === null ) { width = this.element.show().outerWidth(); this.element.hide(); } this.button.outerWidth( width ); }, _resizeMenu: function() { this.menu.outerWidth( Math.max( this.button.outerWidth(), this.menu.width( "" ).outerWidth() ) ); }, _getCreateOptions: function() { var options = this._super(); options.disabled = this.element.prop( "disabled" ); return options; }, _parseOptions: function( options ) { var that = this, data = []; options.each( function( index, item ) { data.push( that._parseOption( $( item ), index ) ); } ); this.items = data; }, _parseOption: function( option, index ) { var optgroup = option.parent( "optgroup" ); return { element: option, index: index, value: option.val(), label: option.text(), hidden: optgroup.prop( "hidden" ) || option.prop( "hidden" ), optgroup: optgroup.attr( "label" ) || "", disabled: optgroup.prop( "disabled" ) || option.prop( "disabled" ) }; }, _destroy: function() { this._unbindFormResetHandler(); this.menuWrap.remove(); this.button.remove(); this.element.show(); this.element.removeUniqueId(); this.labels.attr( "for", this.ids.element ); } } ] ); } );
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