(function ($) {
    $.widget("ui.selectmenu", { getter: "value", version: "1.8", eventPrefix: "selectmenu", options: { transferClasses: true, typeAhead: "sequential", style: 'dropdown', positionOptions: { my: "left top", at: "left bottom", offset: null }, width: null, menuWidth: null, handleWidth: 26, maxHeight: null, icons: null, format: null, bgImage: function () { }, wrapperElement: "" }, _create: function () {
        var self = this, o = this.options; var selectmenuId = this.element.attr('id') || 'ui-selectmenu-' + Math.random().toString(16).slice(2, 10); this.ids = [selectmenuId + '-button', selectmenuId + '-menu']; this._safemouseup = true; this.newelement = $('<a class="' + this.widgetBaseClass + ' ui-widget ui-state-default ui-corner-all" id="' + this.ids[0] + '" role="button" href="#" tabindex="0" aria-haspopup="true" aria-owns="' + this.ids[1] + '"></a>').insertAfter(this.element); this.newelement.wrap(o.wrapperElement); var tabindex = this.element.attr('tabindex'); if (tabindex) { this.newelement.attr('tabindex', tabindex); }
        this.newelement.data('selectelement', this.element); this.selectmenuIcon = $('<span class="' + this.widgetBaseClass + '-icon ui-icon"></span>').prependTo(this.newelement); this.newelement.prepend('<span class="' + self.widgetBaseClass + '-status" />'); $('label[for="' + selectmenuId + '"]').attr('for', this.ids[0]).bind('click.selectmenu', function () { self.newelement[0].focus(); return false; }); this.newelement.bind('mousedown.selectmenu', function (event) {
            self._toggle(event, true); if (o.style == "popup") { self._safemouseup = false; setTimeout(function () { self._safemouseup = true; }, 300); }
            return false;
        }).bind('click.selectmenu', function () { return false; }).bind("keydown.selectmenu", function (event) {
            var ret = false; switch (event.keyCode) {
                case $.ui.keyCode.ENTER: ret = true; break; case $.ui.keyCode.SPACE: self._toggle(event); break; case $.ui.keyCode.UP: if (event.altKey) { self.open(event); } else { self._moveSelection(-1); }
                    break; case $.ui.keyCode.DOWN: if (event.altKey) { self.open(event); } else { self._moveSelection(1); }
                    break; case $.ui.keyCode.LEFT: self._moveSelection(-1); break; case $.ui.keyCode.RIGHT: self._moveSelection(1); break; case $.ui.keyCode.TAB: ret = true; break; default: ret = true;
            }
            return ret;
        }).bind('keypress.selectmenu', function (event) { self._typeAhead(event.which, 'mouseup'); return true; }).bind('mouseover.selectmenu focus.selectmenu', function () { if (!o.disabled) { $(this).addClass(self.widgetBaseClass + '-focus ui-state-hover'); } }).bind('mouseout.selectmenu blur.selectmenu', function () { if (!o.disabled) { $(this).removeClass(self.widgetBaseClass + '-focus ui-state-hover'); } }); $(document).bind("mousedown.selectmenu", function (event) { self.close(event); }); this.element.bind("click.selectmenu", function () { self._refreshValue(); }).bind("focus.selectmenu", function () { if (self.newelement) { self.newelement[0].focus(); } }); if (!o.width) { o.width = this.element.outerWidth(); }
        this.newelement.width(o.width); this.element.hide(); this.list = $('<ul class="' + self.widgetBaseClass + '-menu ui-widget ui-widget-content" aria-hidden="true" role="listbox" aria-labelledby="' + this.ids[0] + '" id="' + this.ids[1] + '"></ul>').appendTo('body'); this.list.wrap(o.wrapperElement); this.list.bind("keydown.selectmenu", function (event) {
            var ret = false; switch (event.keyCode) {
                case $.ui.keyCode.UP: if (event.altKey) { self.close(event, true); } else { self._moveFocus(-1); }
                    break; case $.ui.keyCode.DOWN: if (event.altKey) { self.close(event, true); } else { self._moveFocus(1); }
                    break; case $.ui.keyCode.LEFT: self._moveFocus(-1); break; case $.ui.keyCode.RIGHT: self._moveFocus(1); break; case $.ui.keyCode.HOME: self._moveFocus(':first'); break; case $.ui.keyCode.PAGE_UP: self._scrollPage('up'); break; case $.ui.keyCode.PAGE_DOWN: self._scrollPage('down'); break; case $.ui.keyCode.END: self._moveFocus(':last'); break; case $.ui.keyCode.ENTER: case $.ui.keyCode.SPACE: self.close(event, true); $(event.target).parents('li:eq(0)').trigger('mouseup'); break; case $.ui.keyCode.TAB: ret = true; self.close(event, true); $(event.target).parents('li:eq(0)').trigger('mouseup'); break; case $.ui.keyCode.ESCAPE: self.close(event, true); break; default: ret = true;
            }
            return ret;
        }).bind('keypress.selectmenu', function (event) { self._typeAhead(event.which, 'focus'); return true; }).bind('mousedown.selectmenu mouseup.selectmenu', function () { return false; }); $(window).bind("resize.selectmenu", $.proxy(self._refreshPosition, this));
    }, _init: function () {
        var self = this, o = this.options; var selectOptionData = []; this.element.find('option').each(function () { selectOptionData.push({ value: $(this).attr('value'), text: self._formatText($(this).text()), selected: $(this).attr('selected'), disabled: $(this).attr('disabled'), classes: $(this).attr('class'), typeahead: $(this).attr('typeahead'), parentOptGroup: $(this).parent('optgroup'), bgImage: o.bgImage.call($(this)) }); }); var activeClass = (self.options.style == "popup") ? " ui-state-active" : ""; this.list.html(""); for (var i = 0; i < selectOptionData.length; i++) {
            var thisLi = $('<li role="presentation"' + (selectOptionData[i].disabled ? ' class="' + this.namespace + '-state-disabled' + '"' : '') + '><a href="#" tabindex="-1" role="option"' + (selectOptionData[i].disabled ? ' aria-disabled="true"' : '') + ' aria-selected="false"' + (selectOptionData[i].typeahead ? ' typeahead="' + selectOptionData[i].typeahead + '"' : '') + '>' + selectOptionData[i].text + '</a></li>').data('index', i).addClass(selectOptionData[i].classes).data('optionClasses', selectOptionData[i].classes || '').bind("mouseup.selectmenu", function (event) {
                if (self._safemouseup && !self._disabled(event.currentTarget) && !self._disabled($(event.currentTarget).parents("ul>li." + self.widgetBaseClass + "-group "))) {
                    var changed = $(this).data('index') != self._selectedIndex(); self.index($(this).data('index')); self.select(event); if (changed) { self.change(event); }
                    self.close(event, true);
                }
                return false;
            }).bind("click.selectmenu", function () { return false; }).bind('mouseover.selectmenu focus.selectmenu', function (e) { if (!$(e.currentTarget).hasClass(self.namespace + '-state-disabled')) { self._selectedOptionLi().addClass(activeClass); self._focusedOptionLi().removeClass(self.widgetBaseClass + '-item-focus ui-state-hover'); $(this).removeClass('ui-state-active').addClass(self.widgetBaseClass + '-item-focus ui-state-hover'); } }).bind('mouseout.selectmenu blur.selectmenu', function () {
                if ($(this).is(self._selectedOptionLi().selector)) { $(this).addClass(activeClass); }
                $(this).removeClass(self.widgetBaseClass + '-item-focus ui-state-hover');
            }); if (selectOptionData[i].parentOptGroup.length) { var optGroupName = self.widgetBaseClass + '-group-' + this.element.find('optgroup').index(selectOptionData[i].parentOptGroup); if (this.list.find('li.' + optGroupName).length) { this.list.find('li.' + optGroupName + ':last ul').append(thisLi); } else { $(' <li role="presentation" class="' + self.widgetBaseClass + '-group ' + optGroupName + (selectOptionData[i].parentOptGroup.attr("disabled") ? ' ' + this.namespace + '-state-disabled" aria-disabled="true"' : '"') + '><span class="' + self.widgetBaseClass + '-group-label">' + selectOptionData[i].parentOptGroup.attr('label') + '</span><ul></ul></li> ').appendTo(this.list).find('ul').append(thisLi); } } else { thisLi.appendTo(this.list); }
            if (o.icons) { for (var j in o.icons) { if (thisLi.is(o.icons[j].find)) { thisLi.data('optionClasses', selectOptionData[i].classes + ' ' + self.widgetBaseClass + '-hasIcon').addClass(self.widgetBaseClass + '-hasIcon'); var iconClass = o.icons[j].icon || ""; thisLi.find('a:eq(0)').prepend('<span class="' + self.widgetBaseClass + '-item-icon ui-icon ' + iconClass + '"></span>'); if (selectOptionData[i].bgImage) { thisLi.find('span').css('background-image', selectOptionData[i].bgImage); } } } } 
        }
        var isDropDown = (o.style == 'dropdown'); this.newelement.toggleClass(self.widgetBaseClass + "-dropdown", isDropDown).toggleClass(self.widgetBaseClass + "-popup", !isDropDown); this.list.toggleClass(self.widgetBaseClass + "-menu-dropdown ui-corner-bottom", isDropDown).toggleClass(self.widgetBaseClass + "-menu-popup ui-corner-all", !isDropDown).find('li:first').toggleClass("ui-corner-top", !isDropDown).end().find('li:last').addClass("ui-corner-bottom"); this.selectmenuIcon.toggleClass('ui-icon-triangle-1-s', isDropDown).toggleClass('ui-icon-triangle-2-n-s', !isDropDown); if (o.transferClasses) { var transferClasses = this.element.attr('class') || ''; this.newelement.add(this.list).addClass(transferClasses); }
        if (o.style == 'dropdown') { this.list.width(o.menuWidth ? o.menuWidth : o.width); } else { this.list.width(o.menuWidth ? o.menuWidth : o.width - o.handleWidth); }
        if (o.maxHeight) { if (o.maxHeight < this.list.height()) { this.list.height(o.maxHeight); } } else { if (!o.format && ($(window).height() / 3) < this.list.height()) { o.maxHeight = $(window).height() / 3; this.list.height(o.maxHeight); } }
        this._optionLis = this.list.find('li:not(.' + self.widgetBaseClass + '-group)'); if (this.element.attr('disabled') === true) { this.disable(); } else { this.enable() }
        this.index(this._selectedIndex()); window.setTimeout(function () { self._refreshPosition(); }, 200);
    }, destroy: function () {
        this.element.removeData(this.widgetName).removeClass(this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled').removeAttr('aria-disabled').unbind(".selectmenu"); $(window).unbind(".selectmenu"); $(document).unbind(".selectmenu"); $('label[for=' + this.newelement.attr('id') + ']').attr('for', this.element.attr('id')).unbind('.selectmenu'); if (this.options.wrapperElement) { this.newelement.find(this.options.wrapperElement).remove(); this.list.find(this.options.wrapperElement).remove(); } else { this.newelement.remove(); this.list.remove(); }
        this.element.show(); $.Widget.prototype.destroy.apply(this, arguments);
    }, _typeAhead: function (code, eventType) {
        var self = this, focusFound = false, C = String.fromCharCode(code).toUpperCase(); c = C.toLowerCase(); if (self.options.typeAhead == 'sequential') {
            window.clearTimeout('ui.selectmenu-' + self.selectmenuId); var find = typeof (self._prevChar) == 'undefined' ? '' : self._prevChar.join(''); function focusOptSeq(elem, ind, c) { focusFound = true; $(elem).trigger(eventType); typeof (self._prevChar) == 'undefined' ? self._prevChar = [c] : self._prevChar[self._prevChar.length] = c; }
            this.list.find('li a').each(function (i) { if (!focusFound) { var thisText = $(this).attr('typeahead') || $(this).text(); if (thisText.indexOf(find + C) == 0) { focusOptSeq(this, i, C) } else if (thisText.indexOf(find + c) == 0) { focusOptSeq(this, i, c) } } }); window.setTimeout(function (el) { self._prevChar = undefined; }, 1000, self);
        } else {
            if (!self._prevChar) { self._prevChar = ['', 0]; }
            var focusFound = false; function focusOpt(elem, ind) { focusFound = true; $(elem).trigger(eventType); self._prevChar[1] = ind; }
            this.list.find('li a').each(function (i) {
                if (!focusFound) {
                    var thisText = $(this).text(); if (thisText.indexOf(C) == 0 || thisText.indexOf(c) == 0) {
                        if (self._prevChar[0] == C) { if (self._prevChar[1] < i) { focusOpt(this, i); } }
                        else { focusOpt(this, i); } 
                    } 
                } 
            }); this._prevChar[0] = C;
        } 
    }, _uiHash: function () { var index = this.index(); return { index: index, option: $("option", this.element).get(index), value: this.element[0].value }; }, open: function (event) {
        var self = this; if (this.newelement.attr("aria-disabled") != 'true') {
            this._closeOthers(event); this.newelement.addClass('ui-state-active'); if (self.options.wrapperElement) { this.list.parent().appendTo('body'); } else { this.list.appendTo('body'); }
            this.list.addClass(self.widgetBaseClass + '-open').attr('aria-hidden', false).find('li:not(.' + self.widgetBaseClass + '-group):eq(' + this._selectedIndex() + ') a')[0].focus(); if (this.options.style == "dropdown") { this.newelement.removeClass('ui-corner-all').addClass('ui-corner-top'); }
            this._refreshPosition(); this._trigger("open", event, this._uiHash());
        } 
    }, close: function (event, retainFocus) {
        if (this.newelement.is('.ui-state-active')) {
            this.newelement.removeClass('ui-state-active'); this.list.attr('aria-hidden', true).removeClass(this.widgetBaseClass + '-open'); if (this.options.style == "dropdown") { this.newelement.removeClass('ui-corner-top').addClass('ui-corner-all'); }
            if (retainFocus) { this.newelement.focus(); }
            this._trigger("close", event, this._uiHash());
        } 
    }, change: function (event) { this.element.trigger("change"); this._trigger("change", event, this._uiHash()); }, select: function (event) {
        if (this._disabled(event.currentTarget)) { return false; }
        this._trigger("select", event, this._uiHash());
    }, _closeOthers: function (event) { $('.' + this.widgetBaseClass + '.ui-state-active').not(this.newelement).each(function () { $(this).data('selectelement').selectmenu('close', event); }); $('.' + this.widgetBaseClass + '.ui-state-hover').trigger('mouseout'); }, _toggle: function (event, retainFocus) { if (this.list.is('.' + this.widgetBaseClass + '-open')) { this.close(event, retainFocus); } else { this.open(event); } }, _formatText: function (text) { return (this.options.format ? this.options.format(text) : text); }, _selectedIndex: function () { return this.element[0].selectedIndex; }, _selectedOptionLi: function () { return this._optionLis.eq(this._selectedIndex()); }, _focusedOptionLi: function () { return this.list.find('.' + this.widgetBaseClass + '-item-focus'); }, _moveSelection: function (amt, recIndex) {
        var currIndex = parseInt(this._selectedOptionLi().data('index') || 0, 10); var newIndex = currIndex + amt; if (newIndex < 0) { newIndex = 0; }
        if (newIndex > this._optionLis.size() - 1) { newIndex = this._optionLis.size() - 1; }
        if (newIndex === recIndex) { return false; }
        if (this._optionLis.eq(newIndex).hasClass(this.namespace + '-state-disabled')) { (amt > 0) ? ++amt : --amt; this._moveSelection(amt, newIndex); } else { return this._optionLis.eq(newIndex).trigger('mouseup'); } 
    }, _moveFocus: function (amt, recIndex) {
        if (!isNaN(amt)) { var currIndex = parseInt(this._focusedOptionLi().data('index') || 0, 10); var newIndex = currIndex + amt; }
        else { var newIndex = parseInt(this._optionLis.filter(amt).data('index'), 10); }
        if (newIndex < 0) { newIndex = 0; }
        if (newIndex > this._optionLis.size() - 1) { newIndex = this._optionLis.size() - 1; }
        if (newIndex === recIndex) { return false; }
        var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000); this._focusedOptionLi().find('a:eq(0)').attr('id', ''); if (this._optionLis.eq(newIndex).hasClass(this.namespace + '-state-disabled')) { (amt > 0) ? ++amt : --amt; this._moveFocus(amt, newIndex); } else { this._optionLis.eq(newIndex).find('a:eq(0)').attr('id', activeID).focus(); }
        this.list.attr('aria-activedescendant', activeID);
    }, _scrollPage: function (direction) { var numPerPage = Math.floor(this.list.outerHeight() / this.list.find('li:first').outerHeight()); numPerPage = (direction == 'up' ? -numPerPage : numPerPage); this._moveFocus(numPerPage); }, _setOption: function (key, value) {
        this.options[key] = value; if (key == 'disabled') {
            this.close(); this.element.add(this.newelement).add(this.list)[value ? 'addClass' : 'removeClass'](this.widgetBaseClass + '-disabled' + ' ' +
this.namespace + '-state-disabled').attr("aria-disabled", value);
        } 
    }, disable: function (index, type) { if (typeof (index) == 'undefined') { this._setOption('disabled', true); } else { if (type == "optgroup") { this._disableOptgroup(index); } else { this._disableOption(index); } } }, enable: function (index, type) { if (typeof (index) == 'undefined') { this._setOption('disabled', false); } else { if (type == "optgroup") { this._enableOptgroup(index); } else { this._enableOption(index); } } }, _disabled: function (elem) { return $(elem).hasClass(this.namespace + '-state-disabled'); }, _disableOption: function (index) { var optionElem = this._optionLis.eq(index); if (optionElem) { optionElem.addClass(this.namespace + '-state-disabled').find("a").attr("aria-disabled", true); this.element.find("option").eq(index).attr("disabled", "disabled"); } }, _enableOption: function (index) { var optionElem = this._optionLis.eq(index); if (optionElem) { optionElem.removeClass(this.namespace + '-state-disabled').find("a").attr("aria-disabled", false); this.element.find("option").eq(index).removeAttr("disabled"); } }, _disableOptgroup: function (index) { var optGroupElem = this.list.find('li.' + this.widgetBaseClass + '-group-' + index); if (optGroupElem) { optGroupElem.addClass(this.namespace + '-state-disabled').attr("aria-disabled", true); this.element.find("optgroup").eq(index).attr("disabled", "disabled"); } }, _enableOptgroup: function (index) { var optGroupElem = this.list.find('li.' + this.widgetBaseClass + '-group-' + index); if (optGroupElem) { optGroupElem.removeClass(this.namespace + '-state-disabled').attr("aria-disabled", false); this.element.find("optgroup").eq(index).removeAttr("disabled"); } }, index: function (newValue) { if (arguments.length) { if (!this._disabled($(this._optionLis[newValue]))) { this.element[0].selectedIndex = newValue; this._refreshValue(); } else { return false; } } else { return this._selectedIndex(); } }, value: function (newValue) { if (arguments.length) { this.element[0].value = newValue; this._refreshValue(); } else { return this.element[0].value; } }, _refreshValue: function () { var activeClass = (this.options.style == "popup") ? " ui-state-active" : ""; var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000); this.list.find('.' + this.widgetBaseClass + '-item-selected').removeClass(this.widgetBaseClass + "-item-selected" + activeClass).find('a').attr('aria-selected', 'false').attr('id', ''); this._selectedOptionLi().addClass(this.widgetBaseClass + "-item-selected" + activeClass).find('a').attr('aria-selected', 'true').attr('id', activeID); var currentOptionClasses = (this.newelement.data('optionClasses') ? this.newelement.data('optionClasses') : ""); var newOptionClasses = (this._selectedOptionLi().data('optionClasses') ? this._selectedOptionLi().data('optionClasses') : ""); this.newelement.removeClass(currentOptionClasses).data('optionClasses', newOptionClasses).addClass(newOptionClasses).find('.' + this.widgetBaseClass + '-status').html(this._selectedOptionLi().find('a:eq(0)').html()); this.list.attr('aria-activedescendant', activeID); }, _refreshPosition: function () {
        var o = this.options; if (o.style == "popup" && !o.positionOptions.offset) { var selected = this._selectedOptionLi(); var _offset = "0 -" + (selected.outerHeight() + selected.offset().top - this.list.offset().top); }
        var zIndexElement = this.element.zIndex(); if (zIndexElement) { this.list.css({ zIndex: zIndexElement }); }
        this.list.position({ of: o.positionOptions.of || this.newelement, my: o.positionOptions.my, at: o.positionOptions.at, offset: o.positionOptions.offset || _offset, collision: o.positionOptions.collision || 'flip' });
    } 
    });
})(jQuery);