bw01

by redoak2000

HTML

<div class="ui-widget">
    <select id="one"></select>
    <br/>
    <select id="two"></select>
</div>

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 () {
            ...