WebContent/resource/web/js/library/bootstrap-select.js

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!function($) {
    var Selectpicker = function(element, options, e) {
        if (e ) {
            e.stopPropagation();
            e.preventDefault();
        }
        this.$element = $(element);
        this.$newElement = null;
        this.button = null;
        this.options = $.extend({}, $.fn.selectpicker.defaults, this.$element.data(), typeof options == 'object' && options);
        this.style = this.options.style;
        this.size = this.options.size;
        this.init();
    };

    Selectpicker.prototype = {

        constructor: Selectpicker,

        init: function (e) {
            this.$element.hide();
            var classList = this.$element.attr('class') !== undefined ? this.$element.attr('class').split(/\s+/) : '';
            var template = this.getTemplate();
            var id = this.$element.attr('id');
            template = this.createLi(template);
            this.$element.after(template);
            this.$newElement = this.$element.next('.bootstrap-select');
            var select = this.$newElement;
            var menu = this.$newElement.find('.dropdown-menu');
            var menuA = this.$newElement.find('.dropdown-menu ul li > a');
            var liHeight = parseInt(menuA.css('line-height')) + menuA.outerHeight();
            var selectOffset_top = this.$newElement.offset().top;
            var size = 0;
            var menuHeight = 0;
            var selectHeight = this.$newElement.outerHeight();
            this.button = this.$newElement.find('> button');
            if (id !== undefined) {
                this.button.attr('id', id);
                $('label[for="' + id + '"]').click(function(){ select.find('button#'+id).focus(); })
            }
            for (var i = 0; i < classList.length; i++) {
                if(classList[i] != 'selectpicker') {
                    this.$newElement.addClass(classList[i]);
                }
            }
            this.button.addClass(this.style);
            this.checkDisabled();
            this.checkTabIndex();
            this.clickListener();
            this.$element.find('optgroup').each(function() {
                if ($(this).attr('label')) {
                    menu.find('.opt'+$(this).index()).eq(0).before('<dt>'+$(this).attr('label')+'</dt>');
                }
                menu.find('.opt'+$(this).index()).eq(0).parent().prev().addClass('optgroup-div');
            });
            if (this.size == 'auto') {
                function getSize() {
                    var selectOffset_top_scroll = selectOffset_top - $(window).scrollTop();
                    var windowHeight = window.innerHeight;
                    var menuExtras = parseInt(menu.css('padding-top')) + parseInt(menu.css('padding-bottom')) + parseInt(menu.css('border-top-width')) + parseInt(menu.css('border-bottom-width')) + parseInt(menu.css('margin-top')) + parseInt(menu.css('margin-bottom')) + 2;