JQuery ComboSelector

combo selector for jquery

by Mani Deep

HTML

<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<link rel="stylesheet" href="https://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link rel="stylesheet" href="https://jqueryui.com/resources/demos/style.css">
<body>

<div class="ui-widget">
	<label>Your preferred programming language: </label>
	<select id="combobox">
		<option value="">Select one...</option>
		<option value="ActionScript">ActionScript</option>
		<option value="AppleScript">AppleScript</option>
		<option value="Asp">Asp</option>
		<option value="BASIC">BASIC</option>
		<option value="C">C</option>
		<option value="C++">C++</option>
		<option value="Clojure">Clojure</option>
		<option value="COBOL">COBOL</option>
		<option value="ColdFusion">ColdFusion</option>
		<option value="Erlang">Erlang</option>
		<option value="Fortran">Fortran</option>
		<option value="Groovy">Groovy</option>
		<option value="Haskell">Haskell</option>
		<option value="Java">Java</option>
		<option value="JavaScript">JavaScript</option>
		<option value="Lisp">Lisp</option>
		<option value="Perl">Perl</option>
		<option value="PHP">PHP</option>
		<option value="Python">Python</option>
		<option value="Ruby">Ruby</option>
		<option value="Scala">Scala</option>
		<option value="Scheme">Scheme</option>
	</select>
</div>
<button id="toggle">Show underlying select</button>


</body>

CSS

.custom-combobox {
		position: relative;
		display: inline-block;
	}
	.custom-combobox-toggle {
		position: absolute;
		top: 0;
		bottom: 0;
		margin-left: -1px;
		padding: 0;
	}
	.custom-combobox-input {
		margin: 0;
		padding: 5px 10px;
	}

JavaScript

(function( $ ) {
		$.widget( "custom.combobox", {
			_create: function() {
				this.wrapper = $( "<span>" )
					.addClass( "custom-combobox" )
					.insertAfter( this.element );

				this.element.hide();
				this._createAutocomplete();
				this._createShowAllButton();
			},

			_createAutocomplete: function() {
				var selected = this.element.children( ":selected" ),
					value = selected.val() ? selected.text() : "";

				this.input = $( "<input>" )
					.appendTo( this.wrapper )
					.val( value )
					.attr( "title", "" )
					.addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" )
					.autocomplete({
						delay: 0,
						minLength: 0,
						source: $.proxy( this, "_source" )
					})
					.tooltip({
						tooltipClass: "ui-state-highlight"
					});

				this._on( this.input, {
					autocompleteselect: function( event, ui ) {
						ui.item.option.selected = true;
						this._trigger( "select", event, {
							item: ui.item.option
						});
					},

					autocompletechange: "_removeIfInvalid"
				});
			},

			_createShowAllButton: function() {
				var input = this.input,
					wasOpen = false;

				$( "<a>" )
					.attr( "tabIndex", -1 )
					.attr( "title", "Show All Items" )
					.tooltip()
					.appendTo( this.wrapper )
					.button({
						icons: {
							primary: "ui-icon-triangle-1-s"
						},
						text: false
					})
					.removeClass( "ui-corner-all" )
					.addClass( "custom-combobox-toggle ui-corner-right" )
					.mousedown(function() {
						wasOpen = input.autocomplete( "widget" ).is( ":visible" );
					})
					.click(function() {
						input.focus();

						// Close if already visible
						if ( wasOpen ) {
							return;
						}

						// Pass empty string as value to search for, displaying all results
						input.autocomplete( "search", "" );
					});
			},

			_source: function( request, response ) {
				var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
				response(...