/*!
* jQuery UI Selectmenu 1.12.1
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*/
//>>label: Selectmenu
//>>group: Widgets
// jscs:disable maximumLineLength
//>>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.
// jscs:enable maximumLineLength
//>>docs: http://api.jqueryui.com/selectmenu/
//>>demos: http://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 ) {
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define( [
"jquery",
"./menu",
"./core"
], factory );
} else {
// Browser globals
factory( jQuery );
}
}( function( $ ) {
return $.widget( "ui.selectmenu", [ $.ui.formResetMixin, {
version: "1.12.1",
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.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();
// Support: IE8
// If the item was selected via a click, the text selection
// will be destroyed in IE
that._setSelection();
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 = $( "<div>", {
title: item.element.attr( "title" )
} );
if ( item.disabled ) {
this._addClass( li, null, "ui-state-disabled" );
}
this._setText( wrapper, item.label );
return li.append( wrapper ).appendTo( ul );
},
_setText: function( element, value ) {
if ( value ) {
element.text( value );
} else {
element.html( " " );
}
},
_move: function( direction, event ) {
var item, next,
filter = ".ui-menu-item";
if ( this.isOpen ) {
item = this.menuItems.eq( this.focusIndex ).parent( "li" );
} else {
item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
filter += ":not(.ui-state-disabled)";
}
if ( direction === "first" || direction === "last" ) {
next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 );
} else {
next = item[ direction + "All" ]( filter ).eq( 0 );
}
if ( next.length ) {
this.menuInstance.focus( event, next );
}
},
_getSelectedItem: function() {
return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
},
_toggle: function( event ) {
this[ this.isOpen ? "close" : "open" ]( event );
},
_setSelection: function() {
var selection;
if ( !this.range ) {
return;
}
if ( window.getSelection ) {
selection = window.getSelection();
selection.removeAllRanges();
selection.addRange( this.range );
// Support: IE8
} else {
this.range.select();
}
// Support: IE
// Setting the text selection kills the button focus in IE, but
// restoring the focus doesn't kill the selection.
this.button.focus();
},
_documentClick: {
mousedown: function( event ) {
if ( !this.isOpen ) {
return;
}
if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" +
$.ui.escapeSelector( this.ids.button ) ).length ) {
this.close( event );
}
}
},
_buttonEvents: {
// Prevent text selection from being reset when interacting with the selectmenu (#10144)
mousedown: function() {
var selection;
if ( window.getSelection ) {
selection = window.getSelection();
if ( selection.rangeCount ) {
this.range = selection.getRangeAt( 0 );
}
// Support: IE8
} else {
this.range = document.selection.createRange();
}
},
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(),
// Support: IE10
// IE10 wraps long text (possibly a rounding bug)
// so we add 1px to avoid the wrapping
this.menu.width( "" ).outerWidth() + 1
) );
},
_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(),
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 );
}
} ] );
} ) );