tokenize2.js

/*!
 * Tokenize2 v1.3.1 (https://github.com/dragonofmercy/Tokenize2)
 * Copyright 2016-2017 DragonOfMercy.
 * Licensed under the new BSD license
 */
(function(factory){
    if (typeof define === 'function' && define.amd){
        // AMD. Register as an anonymous module.
        define(['jquery'], factory);
    } else if(typeof module === 'object' && module.exports){
        // Node/CommonJS
        module.exports = function(root, jQuery){
            if(jQuery === undefined){
                // require('jQuery') returns a factory that requires window to
                // build a jQuery instance, we normalize how we use modules
                // that require this pattern but the window provided is a noop
                // if it's defined (how jquery works)
                if (typeof window !== 'undefined'){
                    jQuery = require('jquery');
                } else {
                    jQuery = require('jquery')(root);
                }
            }
            factory(jQuery);
            return jQuery;
        };
    } else {
        // Browser globals
        factory(jQuery);
    }
}(function($){
    /**
     * Tokenize2 constructor.
     *
     * @param {object} element
     * @param {object} options
     * @constructor
     */
    var Tokenize2 = function(element, options){

        this.control = false;
        this.element = $(element);
        this.options = $.extend({}, Tokenize2.DEFAULTS, options);

        this.options.tabIndex = this.options.tabIndex === -1 ? 0 : this.options.tabIndex;
        this.options.sortable = this.options.tokensMaxItems === 1 ? false : this.options.sortable;

        this.bind();
        this.trigger('tokenize:load');

    };

    /**
     * Keycodes constants
     *
     * @type {object}
     */
    var KEYS = {
        BACKSPACE: 8,
        TAB: 9,
        ENTER: 13,
        ESCAPE: 27,
        ARROW_UP: 38,
        ARROW_DOWN: 40,
        CTRL: 17,
        MAJ: 16
    };

    Tokenize2.VERSION = '1.3.3';
    Tokenize2.DEBOUNCE = null;
    Tokenize2.DEFAULTS = {
        tokensMaxItems: 0,
        tokensAllowCustom: false,
        dropdownMaxItems: 10,
        dropdownSelectFirstItem: true,
        searchMinLength: 0,
        searchMaxLength: 0,
        searchFromStart: true,
        searchHighlight: true,
        displayNoResultsMessage: false,
        noResultsMessageText: 'No results mached "%s"',
        delimiter: ',',
        dataSource: 'select',
        debounce: 0,
        placeholder: false,
        sortable: false,
        allowEmptyValues: false,
        zIndexMargin: 500,
        tabIndex: 0
    };

    /**
     * Trigger an event
     *
     * @see $.trigger
     */
    Tokenize2.prototype.trigger = function(event, data, elem, onlyHandlers){

        this.element.trigger(event, data, elem, onlyHandlers);

    };

    /**
     * Bind events
     */
    Tokenize2.prototype.bind = function(){

        this.element.on('tokenize:load', {}, $.proxy(function(){ this.init() }, this))
            .on('tokenize:clear', {}, $.proxy(function(){ this.clear() }, this))
            .on('tokenize:remap', {}, $.proxy(function(){ this.remap() }, this))
            .on('tokenize:select', {}, $.proxy(function(e, c){ this.focus(c) }, this))
            .on('tokenize:deselect', {}, $.proxy(function(){ this.blur() }, this))
            .on('tokenize:search', {}, $.proxy(function(e, v){ this.find(v) }, this))
            .on('tokenize:paste', {}, $.proxy(function(){ this.paste() }, this))
            .on('tokenize:dropdown:up', {}, $.proxy(function(){ this.dropdownSelectionMove(-1) }, this))
            .on('tokenize:dropdown:down', {}, $.proxy(function(){ this.dropdownSelectionMove(1) }, this))
            .on('tokenize:dropdown:clear', {}, $.proxy(function(){ this.dropdownClear() }, this))
            .on('tokenize:dropdown:show', {}, $.proxy(function(){ this.dropdownShow() }, this))
            .on('tokenize:dropdown:hide', {}, $.proxy(function(){ this.dropdownHide() }, this))
            .on('tokenize:dropdown:fill', {}, $.proxy(function(e, i){ this.dropdownFill(i) }, this))
            .on('tokenize:dropdown:itemAdd', {}, $.proxy(function(e, i){ this.dropdownAddItem(i) }, this))
            .on('tokenize:keypress', {}, $.proxy(function(e, routedEvent){ this.keypress(routedEvent) }, this))
            .on('tokenize:keydown', {}, $.proxy(function(e, routedEvent){ this.keydown(routedEvent) }, this))
            .on('tokenize:keyup', {}, $.proxy(function(e, routedEvent){ this.keyup(routedEvent) }, this))
            .on('tokenize:tokens:reorder', {}, $.proxy(function(){ this.reorder() }, this))
            .on('tokenize:tokens:add', {}, $.proxy(function(e, v, t, c){ this.tokenAdd(v, t, c) }, this))
            .on('tokenize:tokens:remove', {}, $.proxy(function(e, v){ this.tokenRemove(v) }, this));

    };

    /**
     * Init function
     */
    Tokenize2.prototype.init = function(){

        this.id = this.guid();
        this.element.hide();

        if(!this.element.attr('multiple')){
            console.error('Attribute multiple is missing, tokenize2 can be buggy !')
        }

        this.dropdown = undefined;
        this.searchContainer = $('<li class="token-search" />');
        this.input = $('<input autocomplete="off" />')
            .on('keydown', {}, $.proxy(function(e){ this.trigger('tokenize:keydown', [e]) }, this))
            .on('keypress', {}, $.proxy(function(e){ this.trigger('tokenize:keypress', [e]) }, this))
            .on('keyup', {}, $.proxy(function(e){ this.trigger('tokenize:keyup', [e]) }, this))
            .on('focus', {}, $.proxy(function(){
                if(this.input.val().length >= this.options.searchMinLength && this.input.val().length > 0){
                    this.trigger('tokenize:search', [this.input.val()]);
                }
            }, this))
            .on('paste', {}, $.proxy(function(){
                if(this.options.tokensAllowCustom){
                    setTimeout($.proxy(function(){
                        this.trigger('tokenize:paste');
                    }, this), 10);
                }
            }, this));

        if(this.options.searchMaxLength > 0){
            this.input.attr('maxlength', this.options.searchMaxLength);
        }

        this.tokensContainer = $('<ul class="tokens-container form-control" />')
            .addClass(this.element.attr('data-class'))
            .attr('tabindex', this.options.tabIndex)
            .append(this.searchContainer.append(this.input));

        if(this.options.placeholder !== false){
            this.placeholder = $('<li class="placeholder" />').html(this.options.placeholder);
            this.tokensContainer.prepend(this.placeholder);
            this.element.on('tokenize:tokens:add tokenize:remap tokenize:select tokenize:deselect tokenize:tokens:remove', $.proxy(function(){
                if(this.container.hasClass('focus') || $('li.token', this.tokensContainer).length > 0 || this.input.val().length > 0){
                    this.placeholder.hide();
                } else {
                    this.placeholder.show();
                }
            }, this));
        }

        this.container = $('<div class="tokenize" />').attr('id', this.id);
        this.container.append(this.tokensContainer).insertAfter(this.element);
        this.container.focusin($.proxy(function(e){
            this.trigger('tokenize:select', [($(e.target)[0] === this.tokensContainer[0])]);
        }, this))
        .focusout($.proxy(function(){
            if(this.container.hasClass('focus')){
                this.trigger('tokenize:deselect')
            }
        }, this));

        if(this.options.tokensMaxItems === 1){
            this.container.addClass('single');
        }

        if(this.options.sortable){
            this.container.addClass('sortable');
            this.tokensContainer.tokenize2sortable({
                itemSelector: 'li.token',
                cursor: 'move',
                placeholder: '<li class="token shadow"><br /></li>',
                placeholderClass: 'token shadow',
                onDragStart: $.proxy(function($item, container, _super){
                    this.searchContainer.hide();
                    _super($item, container);
                } , this),
                onDrop: $.proxy(function($item, container, _super){
                    this.searchContainer.show();
                    this.trigger('tokenize:tokens:reorder');
                    _super($item, container);
                }, this)
            });
        }

        this.element
            .on('tokenize:tokens:add tokenize:tokens:remove', $.proxy(function(){
                if(this.options.tokensMaxItems > 0 && $('li.token', this.tokensContainer).length >= this.options.tokensMaxItems){
                    this.searchContainer.hide();
                } else {
                    this.searchContainer.show();
                }
            }, this))
            .on('tokenize:keydown tokenize:keyup tokenize:loaded', $.proxy(function(){
                this.scaleInput();
            }, this));

        this.trigger('tokenize:remap');
        this.trigger('tokenize:tokens:reorder');
        this.trigger('tokenize:loaded');

        if(this.element.is(':disabled')){
            this.disable();
        }

    };

    /**
     * Reorder tokens in the select
     */
    Tokenize2.prototype.reorder = function(){

        if(this.options.sortable){
            var previous, current, data = this.tokensContainer.tokenize2sortable('serialize').get(0);
            $.each(data, $.proxy(function(k, v){
                current = $('option[value="' + v.value + '"]', this.element);
                if(previous === undefined){
                    current.prependTo(this.element);
                } else {
                    previous.after(current);
                }
                previous = current;
            }, this));
        }
    };

    /**
     * Transform clipboard item to tokens
     */
    Tokenize2.prototype.paste = function(){

        var $pattern = new RegExp(this.escapeRegex(Array.isArray(this.options.delimiter) ? this.options.delimiter.join('|') : this.options.delimiter), 'ig');

        if($pattern.test(this.input.val())){
            $.each(this.input.val().split($pattern), $.proxy(function(_, value){
                this.trigger('tokenize:tokens:add', [value, null, true]);
            }, this))
        }

    };

    /**
     * Add token
     *
     * If text is empty text = value
     *
     * @param {string} value
     * @param {string} text
     * @param {boolean} force
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.tokenAdd = function(value, text, force){

        value = this.escape(value);
        text = text || value;
        force = force || false;
        this.resetInput();

        // Check if token is empty
        if(value === undefined ||(!this.options.allowEmptyValues && value === '')){
            this.trigger('tokenize:tokens:error:empty');
            return this;
        }

        // Check if max number of token is reached
        if(this.options.tokensMaxItems > 0 && $('li.token', this.tokensContainer).length >= this.options.tokensMaxItems){
            this.trigger('tokenize:tokens:error:max');
            return this;
        }

        // Check duplicate token
        if($('li.token[data-value="' + value + '"]', this.tokensContainer).length > 0){
            this.trigger('tokenize:tokens:error:duplicate', [value, text]);
            return this;
        }

        if($('option[value="' + value + '"]', this.element).length) {
            $('option[value="' + value + '"]', this.element).attr('selected', 'selected').prop('selected', true);
        } else if(force){
            this.element.append($('<option selected />').val(value).html(text));
        } else if(this.options.tokensAllowCustom){
            this.element.append($('<option selected data-type="custom" />').val(value).html(text));
        } else {
            this.trigger('tokenize:tokens:error:notokensAllowCustom');
            return this;
        }

        $('<li class="token" />')
            .attr('data-value', value)
            .append('<span>' + text + '</span>')
            .prepend($('<a class="dismiss" />').on('mousedown touchstart', {}, $.proxy(function(e){
                e.preventDefault();
                if(e.which == 1){
                    this.trigger('tokenize:tokens:remove', [value]);
                }
            }, this)))
            .insertBefore(this.searchContainer);

        this.trigger('tokenize:dropdown:hide');
        this.trigger('tokenize:tokens:added', [value, text]);

        return this;

    };

    /**
     * Remove token
     *
     * @param {string} v
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.tokenRemove = function(v){

        var $item = $('option[value="' + v + '"]', this.element);

        if($item.attr('data-type') === 'custom'){
            $item.remove();
        } else {
            $item.removeAttr('selected').prop('selected', false);
        }

        $('li.token[data-value="' + v + '"]', this.tokensContainer).remove();

        this.trigger('tokenize:tokens:reorder');
        return this;

    };

    /**
     * Refresh tokens reflecting selected options
     *
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.remap = function(){

        var $selected = $('option:selected', this.element);
        $selected.each($.proxy(function(v, t) {
            this.trigger('tokenize:tokens:add', [$(t).val(), $(t).html(), false]);
        }, this));

        return this;

    };

    /**
     * Disable tokenize
     *
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.disable = function(){

        this.tokensContainer.addClass('disabled');
        this.searchContainer.hide();
        return this;

    };

    /**
     * Enable tokenize
     *
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.enable = function(){

        this.tokensContainer.removeClass('disabled');
        this.searchContainer.show();
        return this;

    };

    /**
     * Focus
     *
     * @param {boolean} container
     */
    Tokenize2.prototype.focus = function(container){

        if(this.element.is(':disabled')){
            this.tokensContainer.blur();
            return;
        }

        if(container){
            this.input.focus();
        }

        if(!this.container.hasClass('focus')){
            this.container.addClass('focus');
            this.trigger('tokenize:focus');
        }

    };

    /**
     * Blur
     */
    Tokenize2.prototype.blur = function(){

        if(this.isDropdownOpen()){
            this.trigger('tokenize:dropdown:hide');
        }
        this.container.removeClass('focus');
        this.resetPending();
        if(!this.tokensContainer.attr('tabindex')){
            this.tokensContainer.attr('tabindex', this.options.tabIndex);
        }

    };

    /**
     * Keydown
     *
     * @param {Event} e
     */
    Tokenize2.prototype.keydown = function(e){

        if(e.type === 'keydown'){
            switch(e.keyCode){
                case KEYS.BACKSPACE:
                    if(this.input.val().length < 1){
                        e.preventDefault();
                        if($('li.token.pending-delete', this.tokensContainer).length > 0){
                            this.trigger('tokenize:tokens:remove', [$('li.token.pending-delete', this.tokensContainer).first().attr('data-value')]);
                        } else {
                            var $token = $('li.token:last', this.tokensContainer);
                            if($token.length > 0){
                                this.trigger('tokenize:tokens:markForDelete', [$token.attr('data-value')]);
                                $token.addClass('pending-delete');
                            }
                        }
                        this.trigger('tokenize:dropdown:hide');
                    }
                    break;

                case KEYS.TAB:
                    if(!e.shiftKey){
                        this.pressedDelimiter(e);
                    } else {
                        this.tokensContainer.removeAttr('tabindex');
                    }
                    break;

                case KEYS.ENTER:
                    this.pressedDelimiter(e);
                    break;

                case KEYS.ESCAPE:
                    this.resetPending();
                    break;

                case KEYS.ARROW_UP:
                    e.preventDefault();
                    this.trigger('tokenize:dropdown:up');
                    break;

                case KEYS.ARROW_DOWN:
                    e.preventDefault();
                    this.trigger('tokenize:dropdown:down');
                    break;

                case KEYS.CTRL:
                    this.control = true;
                    break;

                default:
                    this.resetPending();
                    break;

            }
        } else {
            e.preventDefault();
        }

    };

    /**
     * Keyup
     *
     * @param {Event} e
     */
    Tokenize2.prototype.keyup = function(e){

        if(e.type === 'keyup'){
            switch(e.keyCode){
                case KEYS.TAB:
                case KEYS.ENTER:
                case KEYS.ESCAPE:
                case KEYS.ARROW_UP:
                case KEYS.ARROW_DOWN:
                case KEYS.MAJ:
                    break;
                case KEYS.CTRL:
                    this.control = false;
                    break;
                case KEYS.BACKSPACE:
                default:
                    if(this.input.val().length >= this.options.searchMinLength && this.input.val().length > 0){
                        this.trigger('tokenize:search', [this.input.val()]);
                    } else {
                        this.trigger('tokenize:dropdown:hide');
                    }
                    break;
            }
        } else {
            e.preventDefault();
        }

    };

    /**
     * Keypress
     *
     * @param {Event} e
     */
    Tokenize2.prototype.keypress = function(e){

        if(e.type === 'keypress' && !this.element.is(':disabled')){
            var $delimiter = false;

            if(Array.isArray(this.options.delimiter)){
                if(this.options.delimiter.indexOf(String.fromCharCode(e.which)) >= 0){
                    $delimiter = true;
                }
            } else {
                if(String.fromCharCode(e.which) === this.options.delimiter){
                    $delimiter = true;
                }
            }

            if($delimiter){
                this.pressedDelimiter(e);
            }
        } else {
            e.preventDefault();
        }

    };

    /**
     * When a delimiter is pressed
     *
     * @param {Event} e
     */
    Tokenize2.prototype.pressedDelimiter = function(e){

        this.resetPending();
        if(this.isDropdownOpen() && $('li.active', this.dropdown).length > 0 && this.control === false){
            e.preventDefault();
            $('li.active a', this.dropdown).trigger('mousedown');
        } else {
            if(this.input.val().length > 0){
                e.preventDefault();
                this.trigger('tokenize:tokens:add', [this.input.val()]);
            }
        }

    };

    /**
     * Search value
     *
     * @param {string} v
     */
    Tokenize2.prototype.find = function(v){

        if(v.length < this.options.searchMinLength){
            this.trigger('tokenize:dropdown:hide');
            return false;
        }

        this.lastSearchTerms = v;

        if(this.options.dataSource === 'select'){
            this.dataSourceLocal(v);
        } else if(typeof this.options.dataSource === 'function'){
            this.options.dataSource(v, this);
        } else {
            this.dataSourceRemote(v);
        }

    };

    /**
     * Gets data from ajax
     *
     * @param {string} search
     */
    Tokenize2.prototype.dataSourceRemote = function(search){

        this.debounce($.proxy(function(){
            if(this.xhr !== undefined){
                this.xhr.abort();
            }
            this.xhr = $.ajax(this.options.dataSource, {
                data: { search: search },
                dataType: 'text',
                success: $.proxy(function(data){
                    var $items = [];
                    if(data != ''){
                        data = JSON.parse(data);
                        $.each(data, function(k, v){
                            $items.push(v);
                        });
                    }
                    this.trigger('tokenize:dropdown:fill', [$items]);
                }, this)
            });
        }, this), this.options.debounce);

    };

    /**
     * Gets data from select
     *
     * @param {string} search
     */
    Tokenize2.prototype.dataSourceLocal = function(search){

        var $searchString = this.transliteration(search);
        var $items = [];
        var $pattern = (this.options.searchFromStart ? '^' : '') + this.escapeRegex($searchString);
        var $regexp = new RegExp($pattern, 'i');
        var $this = this;

        $('option', this.element)
            .not(':selected, :disabled')
            .each(function(){
                var text = $this.trim($(this).html());
                var value = $this.trim($(this).attr('value'));
                if($regexp.test($this.transliteration(text))){
                    $items.push({ value: value, text: text });
                }
            });

        this.trigger('tokenize:dropdown:fill', [$items]);

    };

    /**
     * Debounce method for ajax request
     *
     * @param {function} func
     * @param {number} threshold
     */
    Tokenize2.prototype.debounce = function(func, threshold){

        var $args = arguments;
        var $delayed = $.proxy(function(){
            func.apply(this, $args);
            this.debounceTimeout = undefined;
        }, this);

        if(this.debounceTimeout !== undefined){
            clearTimeout(this.debounceTimeout);
        }

        this.debounceTimeout = setTimeout($delayed, threshold || 0);

    };

    /**
     * Show dropdown
     */
    Tokenize2.prototype.dropdownShow = function(){

        if(!this.isDropdownOpen()){
            $('.tokenize-dropdown').remove();
            this.dropdown = $('<div class="tokenize-dropdown dropdown"><ul class="dropdown-menu" /></div>').attr('data-related', this.id);
            $('body').append(this.dropdown);
            this.dropdown.show();
            this.dropdown.css('z-index', this.calculatezindex() + this.options.zIndexMargin);
            $(window).on('resize scroll', {}, $.proxy(function(){ this.dropdownMove() }, this)).trigger('resize');
            this.trigger('tokenize:dropdown:shown');
        }

    };

    /**
     * Calculate z-index
     *
     * @returns {int}
     */
    Tokenize2.prototype.calculatezindex = function(){

        var el = this.container;
        var zindex = 0;

        if(!isNaN(parseInt(el.css('z-index'))) && parseInt(el.css('z-index')) > 0){
            zindex = parseInt(el.css('z-index'));
        }

        if(zindex < 1){
            while(el.length) {
                el = el.parent();
                if(el.length > 0){
                    if(!isNaN(parseInt(el.css('z-index'))) && parseInt(el.css('z-index')) > 0){
                        return parseInt(el.css('z-index'));
                    }
                    if(el.is('html')){
                        break;
                    }
                }
            }
        }

        return zindex;

    };

    /**
     * Hide dropdown
     */
    Tokenize2.prototype.dropdownHide = function(){

        if(this.isDropdownOpen()){
            $(window).off('resize scroll');
            this.dropdown.remove();
            this.dropdown = undefined;
            this.trigger('tokenize:dropdown:hidden');
        }

    };

    /**
     * Clear dropdown
     */
    Tokenize2.prototype.dropdownClear = function(){

        if(this.dropdown){
            this.dropdown.find('.dropdown-menu li').remove();
        }

    };

    /**
     * Fill dropdown with options
     *
     * @param {object} items
     */
    Tokenize2.prototype.dropdownFill = function(items){

        if(items && items.length > 0){
            this.trigger('tokenize:dropdown:show');
            this.trigger('tokenize:dropdown:clear');

            $.each(items, $.proxy(function(k, v) {
                if($('li.dropdown-item', this.dropdown).length <= this.options.dropdownMaxItems){
                    this.trigger('tokenize:dropdown:itemAdd', [v]);
                }
            }, this));

            if($('li.active', this.dropdown).length < 1 && this.options.dropdownSelectFirstItem){
                $('li:first', this.dropdown).addClass('active');
            }

            if($('li.dropdown-item', this.dropdown).length < 1){
                this.trigger('tokenize:dropdown:hide');
            } else {
                this.trigger('tokenize:dropdown:filled');
            }
        } else {
            if(this.options.displayNoResultsMessage){
                this.trigger('tokenize:dropdown:show');
                this.trigger('tokenize:dropdown:clear');
                this.dropdown.find('.dropdown-menu').append(
                    $('<li class="dropdown-item locked" />').html(this.options.noResultsMessageText.replace('%s', this.input.val()))
                );
            } else {
                this.trigger('tokenize:dropdown:hide');
            }
        }

        // Fix the dropdown position when page start scroll
        $(window).trigger('resize');

    };

    /**
     * Move selection through dropdown items
     * @param {int} d
     */
    Tokenize2.prototype.dropdownSelectionMove = function(d){

        if($('li.active', this.dropdown).length > 0){
            if(!$('li.active', this.dropdown).is('li:' + (d > 0 ? 'last-child'  : 'first-child'))){
                var $active = $('li.active', this.dropdown);
                $active.removeClass('active');
                if(d > 0){
                    $active.next().addClass('active');
                } else {
                    $active.prev().addClass('active');
                }
            } else {
                $('li.active', this.dropdown).removeClass('active');
                if(this.options.dropdownSelectFirstItem){
                    $('li:' + (d > 0 ? 'first-child' : 'last-child'), this.dropdown).addClass('active');
                }
            }
        } else {
            $('li:first', this.dropdown).addClass('active');
        }

    };

    /**
     * Add dropdown item
     *
     * @param {object} item
     */
    Tokenize2.prototype.dropdownAddItem = function(item){

        if(this.isDropdownOpen()){
            var $li = $('<li class="dropdown-item" />').html(this.dropdownItemFormat(item))
                .on('mouseover', $.proxy(function(e){
                    e.preventDefault();
                    e.target = this.fixTarget(e.target);
                    $('li', this.dropdown).removeClass('active');
                    $(e.target).parent().addClass('active');
                }, this)).on('mouseout', $.proxy(function(){
                    $('li', this.dropdown).removeClass('active');
                }, this)).on('mousedown touchstart', $.proxy(function(e){
                    e.preventDefault();
                    e.target = this.fixTarget(e.target);
                    this.trigger('tokenize:tokens:add', [$(e.target).attr('data-value'), $(e.target).attr('data-text'), true]);
                }, this));
            if($('li.token[data-value="' + $li.find('a').attr('data-value') + '"]', this.tokensContainer).length < 1){
                this.dropdown.find('.dropdown-menu').append($li);
                this.trigger('tokenize:dropdown:itemAdded', [item]);
            }
        }

    };

    /**
     * Fix target for hover and click event on dropdown items
     *
     * @param {object} target
     * @returns {object}
     */
    Tokenize2.prototype.fixTarget = function(target){

        var $target = $(target);

        if(!$target.data('value')){
            var $link = $target.find('a');
            if($link.length){
                return $link.get(0);
            }
            var $parent = $target.parents('[data-value]');
            if($parent.length){
                return $parent.get(0);
            }
        }

        return $target.get(0);

    };

    /**
     * Format dropdown item
     *
     * @param {object} item
     * @returns {object|jQuery}
     */
    Tokenize2.prototype.dropdownItemFormat = function(item){

        if(item.hasOwnProperty('text')){
            var $display = '';
            if(this.options.searchHighlight){
                var $regex = new RegExp((this.options.searchFromStart ? '^' : '') + '(' +this.escapeRegex(this.transliteration(this.lastSearchTerms)) + ')', 'gi');
                $display = item.text.replace($regex, '<span class="tokenize-highlight">$1</span>');
            } else {
                $display = item.text;
            }

            return $('<a />').html($display).attr({
                'data-value': item.value,
                'data-text': item.text
            });
        }

    };

    /**
     * Move dropdown according tokens container
     */
    Tokenize2.prototype.dropdownMove = function(){

        var $position = this.tokensContainer.offset();
        var $height = this.tokensContainer.outerHeight();
        var $width = this.tokensContainer.outerWidth();

        $position.top += $height;
        this.dropdown.css({
            width: $width
        }).offset($position);

    };

    /**
     * Returns the current status of the dropdown
     *
     * @returns {boolean}
     */
    Tokenize2.prototype.isDropdownOpen = function(){

        return (this.dropdown !== undefined);

    };

    /**
     * Clear control
     *
     * @returns {Tokenize2}
     */
    Tokenize2.prototype.clear = function(){

        $.each($('li.token', this.tokensContainer), $.proxy(function(e, item){
            this.trigger('tokenize:tokens:remove', [$(item).attr('data-value')]);
        }, this));

        this.trigger('tokenize:dropdown:hide');

        return this;

    };

    /**
     * Reset pending delete tokens
     */
    Tokenize2.prototype.resetPending = function(){

        var $token = $('li.pending-delete:last', this.tokensContainer);

        if($token.length > 0){
            this.trigger('tokenize:tokens:cancelDelete', [$token.attr('data-value')]);
            $token.removeClass('pending-delete');
        }

    };

    /**
     * Scale input
     */
    Tokenize2.prototype.scaleInput = function(){

        if(!this.ctx){
            this.ctx = document.createElement('canvas').getContext('2d');
        }

        var $width, $tokensContainerWidth;

        this.ctx.font = this.input.css('font-style') + ' ' +
            this.input.css('font-variant') + ' ' +
            this.input.css('font-weight') + ' ' +
            Math.ceil(parseFloat(this.input.css('font-size'))) + 'px ' +
            this.input.css('font-family');

        $width = Math.round(this.ctx.measureText(this.input.val() + 'M').width) + Math.ceil(parseFloat(this.searchContainer.css('margin-left'))) + Math.ceil(parseFloat(this.searchContainer.css('margin-right')));
        $tokensContainerWidth = this.tokensContainer.width() -
            (
                Math.ceil(parseFloat(this.tokensContainer.css('border-left-width'))) + Math.ceil(parseFloat(this.tokensContainer.css('border-right-width')) +
                Math.ceil(parseFloat(this.tokensContainer.css('padding-left'))) + Math.ceil(parseFloat(this.tokensContainer.css('padding-right'))))
            );

        if($width >= $tokensContainerWidth){
            $width = $tokensContainerWidth;
        }

        this.searchContainer.width($width);
        this.ctx.restore();

    };

    /**
     * Reset input
     */
    Tokenize2.prototype.resetInput = function(){

        this.input.val('');
        this.scaleInput();

    };

    Tokenize2.prototype.trim = function(string){
        return string.trim();
    };

    /**
     * Escape string
     *
     * @param {string} string
     * @returns {string}
     */
    Tokenize2.prototype.escape = function(string){

        var $escaping = document.createElement('div');
        $escaping.innerHTML = string;
        string = ($escaping.textContent || $escaping.innerText || '');
        return String(string).replace(/["]/g, function(){
            return '\"';
        });

    };

    /**
     * Escape regex
     *
     * @param {string} value
     * @returns {string}
     */
    Tokenize2.prototype.escapeRegex = function(value){

        return value.replace( /[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&" );

    };

    /**
     * Generates guid
     *
     * @returns {string}
     */
    Tokenize2.prototype.guid = function(){

        function s4(){
            return Math.floor((1 + Math.random()) * 0x10000)
                .toString(16)
                .substring(1);
        }
        return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
            s4() + '-' + s4() + s4() + s4();

    };

    /**
     * Retrieve tokens value to an array
     *
     * @returns {Array}
     */
    Tokenize2.prototype.toArray = function(){

        var $output = [];
        $("option:selected", this.element).each(function(){
            $output.push($(this).val());
        });
        return $output;

    };

    Tokenize2.prototype.transliteration = function(text){
        var diacritics = {
            '\u24B6': 'A',
            '\uFF21': 'A',
            '\u00C0': 'A',
            '\u00C1': 'A',
            '\u00C2': 'A',
            '\u1EA6': 'A',
            '\u1EA4': 'A',
            '\u1EAA': 'A',
            '\u1EA8': 'A',
            '\u00C3': 'A',
            '\u0100': 'A',
            '\u0102': 'A',
            '\u1EB0': 'A',
            '\u1EAE': 'A',
            '\u1EB4': 'A',
            '\u1EB2': 'A',
            '\u0226': 'A',
            '\u01E0': 'A',
            '\u00C4': 'A',
            '\u01DE': 'A',
            '\u1EA2': 'A',
            '\u00C5': 'A',
            '\u01FA': 'A',
            '\u01CD': 'A',
            '\u0200': 'A',
            '\u0202': 'A',
            '\u1EA0': 'A',
            '\u1EAC': 'A',
            '\u1EB6': 'A',
            '\u1E00': 'A',
            '\u0104': 'A',
            '\u023A': 'A',
            '\u2C6F': 'A',
            '\uA732': 'AA',
            '\u00C6': 'AE',
            '\u01FC': 'AE',
            '\u01E2': 'AE',
            '\uA734': 'AO',
            '\uA736': 'AU',
            '\uA738': 'AV',
            '\uA73A': 'AV',
            '\uA73C': 'AY',
            '\u24B7': 'B',
            '\uFF22': 'B',
            '\u1E02': 'B',
            '\u1E04': 'B',
            '\u1E06': 'B',
            '\u0243': 'B',
            '\u0182': 'B',
            '\u0181': 'B',
            '\u24B8': 'C',
            '\uFF23': 'C',
            '\u0106': 'C',
            '\u0108': 'C',
            '\u010A': 'C',
            '\u010C': 'C',
            '\u00C7': 'C',
            '\u1E08': 'C',
            '\u0187': 'C',
            '\u023B': 'C',
            '\uA73E': 'C',
            '\u24B9': 'D',
            '\uFF24': 'D',
            '\u1E0A': 'D',
            '\u010E': 'D',
            '\u1E0C': 'D',
            '\u1E10': 'D',
            '\u1E12': 'D',
            '\u1E0E': 'D',
            '\u0110': 'D',
            '\u018B': 'D',
            '\u018A': 'D',
            '\u0189': 'D',
            '\uA779': 'D',
            '\u01F1': 'DZ',
            '\u01C4': 'DZ',
            '\u01F2': 'Dz',
            '\u01C5': 'Dz',
            '\u24BA': 'E',
            '\uFF25': 'E',
            '\u00C8': 'E',
            '\u00C9': 'E',
            '\u00CA': 'E',
            '\u1EC0': 'E',
            '\u1EBE': 'E',
            '\u1EC4': 'E',
            '\u1EC2': 'E',
            '\u1EBC': 'E',
            '\u0112': 'E',
            '\u1E14': 'E',
            '\u1E16': 'E',
            '\u0114': 'E',
            '\u0116': 'E',
            '\u00CB': 'E',
            '\u1EBA': 'E',
            '\u011A': 'E',
            '\u0204': 'E',
            '\u0206': 'E',
            '\u1EB8': 'E',
            '\u1EC6': 'E',
            '\u0228': 'E',
            '\u1E1C': 'E',
            '\u0118': 'E',
            '\u1E18': 'E',
            '\u1E1A': 'E',
            '\u0190': 'E',
            '\u018E': 'E',
            '\u24BB': 'F',
            '\uFF26': 'F',
            '\u1E1E': 'F',
            '\u0191': 'F',
            '\uA77B': 'F',
            '\u24BC': 'G',
            '\uFF27': 'G',
            '\u01F4': 'G',
            '\u011C': 'G',
            '\u1E20': 'G',
            '\u011E': 'G',
            '\u0120': 'G',
            '\u01E6': 'G',
            '\u0122': 'G',
            '\u01E4': 'G',
            '\u0193': 'G',
            '\uA7A0': 'G',
            '\uA77D': 'G',
            '\uA77E': 'G',
            '\u24BD': 'H',
            '\uFF28': 'H',
            '\u0124': 'H',
            '\u1E22': 'H',
            '\u1E26': 'H',
            '\u021E': 'H',
            '\u1E24': 'H',
            '\u1E28': 'H',
            '\u1E2A': 'H',
            '\u0126': 'H',
            '\u2C67': 'H',
            '\u2C75': 'H',
            '\uA78D': 'H',
            '\u24BE': 'I',
            '\uFF29': 'I',
            '\u00CC': 'I',
            '\u00CD': 'I',
            '\u00CE': 'I',
            '\u0128': 'I',
            '\u012A': 'I',
            '\u012C': 'I',
            '\u0130': 'I',
            '\u00CF': 'I',
            '\u1E2E': 'I',
            '\u1EC8': 'I',
            '\u01CF': 'I',
            '\u0208': 'I',
            '\u020A': 'I',
            '\u1ECA': 'I',
            '\u012E': 'I',
            '\u1E2C': 'I',
            '\u0197': 'I',
            '\u24BF': 'J',
            '\uFF2A': 'J',
            '\u0134': 'J',
            '\u0248': 'J',
            '\u24C0': 'K',
            '\uFF2B': 'K',
            '\u1E30': 'K',
            '\u01E8': 'K',
            '\u1E32': 'K',
            '\u0136': 'K',
            '\u1E34': 'K',
            '\u0198': 'K',
            '\u2C69': 'K',
            '\uA740': 'K',
            '\uA742': 'K',
            '\uA744': 'K',
            '\uA7A2': 'K',
            '\u24C1': 'L',
            '\uFF2C': 'L',
            '\u013F': 'L',
            '\u0139': 'L',
            '\u013D': 'L',
            '\u1E36': 'L',
            '\u1E38': 'L',
            '\u013B': 'L',
            '\u1E3C': 'L',
            '\u1E3A': 'L',
            '\u0141': 'L',
            '\u023D': 'L',
            '\u2C62': 'L',
            '\u2C60': 'L',
            '\uA748': 'L',
            '\uA746': 'L',
            '\uA780': 'L',
            '\u01C7': 'LJ',
            '\u01C8': 'Lj',
            '\u24C2': 'M',
            '\uFF2D': 'M',
            '\u1E3E': 'M',
            '\u1E40': 'M',
            '\u1E42': 'M',
            '\u2C6E': 'M',
            '\u019C': 'M',
            '\u24C3': 'N',
            '\uFF2E': 'N',
            '\u01F8': 'N',
            '\u0143': 'N',
            '\u00D1': 'N',
            '\u1E44': 'N',
            '\u0147': 'N',
            '\u1E46': 'N',
            '\u0145': 'N',
            '\u1E4A': 'N',
            '\u1E48': 'N',
            '\u0220': 'N',
            '\u019D': 'N',
            '\uA790': 'N',
            '\uA7A4': 'N',
            '\u01CA': 'NJ',
            '\u01CB': 'Nj',
            '\u24C4': 'O',
            '\uFF2F': 'O',
            '\u00D2': 'O',
            '\u00D3': 'O',
            '\u00D4': 'O',
            '\u1ED2': 'O',
            '\u1ED0': 'O',
            '\u1ED6': 'O',
            '\u1ED4': 'O',
            '\u00D5': 'O',
            '\u1E4C': 'O',
            '\u022C': 'O',
            '\u1E4E': 'O',
            '\u014C': 'O',
            '\u1E50': 'O',
            '\u1E52': 'O',
            '\u014E': 'O',
            '\u022E': 'O',
            '\u0230': 'O',
            '\u00D6': 'O',
            '\u022A': 'O',
            '\u1ECE': 'O',
            '\u0150': 'O',
            '\u01D1': 'O',
            '\u020C': 'O',
            '\u020E': 'O',
            '\u01A0': 'O',
            '\u1EDC': 'O',
            '\u1EDA': 'O',
            '\u1EE0': 'O',
            '\u1EDE': 'O',
            '\u1EE2': 'O',
            '\u1ECC': 'O',
            '\u1ED8': 'O',
            '\u01EA': 'O',
            '\u01EC': 'O',
            '\u00D8': 'O',
            '\u01FE': 'O',
            '\u0186': 'O',
            '\u019F': 'O',
            '\uA74A': 'O',
            '\uA74C': 'O',
            '\u01A2': 'OI',
            '\uA74E': 'OO',
            '\u0222': 'OU',
            '\u24C5': 'P',
            '\uFF30': 'P',
            '\u1E54': 'P',
            '\u1E56': 'P',
            '\u01A4': 'P',
            '\u2C63': 'P',
            '\uA750': 'P',
            '\uA752': 'P',
            '\uA754': 'P',
            '\u24C6': 'Q',
            '\uFF31': 'Q',
            '\uA756': 'Q',
            '\uA758': 'Q',
            '\u024A': 'Q',
            '\u24C7': 'R',
            '\uFF32': 'R',
            '\u0154': 'R',
            '\u1E58': 'R',
            '\u0158': 'R',
            '\u0210': 'R',
            '\u0212': 'R',
            '\u1E5A': 'R',
            '\u1E5C': 'R',
            '\u0156': 'R',
            '\u1E5E': 'R',
            '\u024C': 'R',
            '\u2C64': 'R',
            '\uA75A': 'R',
            '\uA7A6': 'R',
            '\uA782': 'R',
            '\u24C8': 'S',
            '\uFF33': 'S',
            '\u1E9E': 'S',
            '\u015A': 'S',
            '\u1E64': 'S',
            '\u015C': 'S',
            '\u1E60': 'S',
            '\u0160': 'S',
            '\u1E66': 'S',
            '\u1E62': 'S',
            '\u1E68': 'S',
            '\u0218': 'S',
            '\u015E': 'S',
            '\u2C7E': 'S',
            '\uA7A8': 'S',
            '\uA784': 'S',
            '\u24C9': 'T',
            '\uFF34': 'T',
            '\u1E6A': 'T',
            '\u0164': 'T',
            '\u1E6C': 'T',
            '\u021A': 'T',
            '\u0162': 'T',
            '\u1E70': 'T',
            '\u1E6E': 'T',
            '\u0166': 'T',
            '\u01AC': 'T',
            '\u01AE': 'T',
            '\u023E': 'T',
            '\uA786': 'T',
            '\uA728': 'TZ',
            '\u24CA': 'U',
            '\uFF35': 'U',
            '\u00D9': 'U',
            '\u00DA': 'U',
            '\u00DB': 'U',
            '\u0168': 'U',
            '\u1E78': 'U',
            '\u016A': 'U',
            '\u1E7A': 'U',
            '\u016C': 'U',
            '\u00DC': 'U',
            '\u01DB': 'U',
            '\u01D7': 'U',
            '\u01D5': 'U',
            '\u01D9': 'U',
            '\u1EE6': 'U',
            '\u016E': 'U',
            '\u0170': 'U',
            '\u01D3': 'U',
            '\u0214': 'U',
            '\u0216': 'U',
            '\u01AF': 'U',
            '\u1EEA': 'U',
            '\u1EE8': 'U',
            '\u1EEE': 'U',
            '\u1EEC': 'U',
            '\u1EF0': 'U',
            '\u1EE4': 'U',
            '\u1E72': 'U',
            '\u0172': 'U',
            '\u1E76': 'U',
            '\u1E74': 'U',
            '\u0244': 'U',
            '\u24CB': 'V',
            '\uFF36': 'V',
            '\u1E7C': 'V',
            '\u1E7E': 'V',
            '\u01B2': 'V',
            '\uA75E': 'V',
            '\u0245': 'V',
            '\uA760': 'VY',
            '\u24CC': 'W',
            '\uFF37': 'W',
            '\u1E80': 'W',
            '\u1E82': 'W',
            '\u0174': 'W',
            '\u1E86': 'W',
            '\u1E84': 'W',
            '\u1E88': 'W',
            '\u2C72': 'W',
            '\u24CD': 'X',
            '\uFF38': 'X',
            '\u1E8A': 'X',
            '\u1E8C': 'X',
            '\u24CE': 'Y',
            '\uFF39': 'Y',
            '\u1EF2': 'Y',
            '\u00DD': 'Y',
            '\u0176': 'Y',
            '\u1EF8': 'Y',
            '\u0232': 'Y',
            '\u1E8E': 'Y',
            '\u0178': 'Y',
            '\u1EF6': 'Y',
            '\u1EF4': 'Y',
            '\u01B3': 'Y',
            '\u024E': 'Y',
            '\u1EFE': 'Y',
            '\u24CF': 'Z',
            '\uFF3A': 'Z',
            '\u0179': 'Z',
            '\u1E90': 'Z',
            '\u017B': 'Z',
            '\u017D': 'Z',
            '\u1E92': 'Z',
            '\u1E94': 'Z',
            '\u01B5': 'Z',
            '\u0224': 'Z',
            '\u2C7F': 'Z',
            '\u2C6B': 'Z',
            '\uA762': 'Z',
            '\u24D0': 'a',
            '\uFF41': 'a',
            '\u1E9A': 'a',
            '\u00E0': 'a',
            '\u00E1': 'a',
            '\u00E2': 'a',
            '\u1EA7': 'a',
            '\u1EA5': 'a',
            '\u1EAB': 'a',
            '\u1EA9': 'a',
            '\u00E3': 'a',
            '\u0101': 'a',
            '\u0103': 'a',
            '\u1EB1': 'a',
            '\u1EAF': 'a',
            '\u1EB5': 'a',
            '\u1EB3': 'a',
            '\u0227': 'a',
            '\u01E1': 'a',
            '\u00E4': 'a',
            '\u01DF': 'a',
            '\u1EA3': 'a',
            '\u00E5': 'a',
            '\u01FB': 'a',
            '\u01CE': 'a',
            '\u0201': 'a',
            '\u0203': 'a',
            '\u1EA1': 'a',
            '\u1EAD': 'a',
            '\u1EB7': 'a',
            '\u1E01': 'a',
            '\u0105': 'a',
            '\u2C65': 'a',
            '\u0250': 'a',
            '\uA733': 'aa',
            '\u00E6': 'ae',
            '\u01FD': 'ae',
            '\u01E3': 'ae',
            '\uA735': 'ao',
            '\uA737': 'au',
            '\uA739': 'av',
            '\uA73B': 'av',
            '\uA73D': 'ay',
            '\u24D1': 'b',
            '\uFF42': 'b',
            '\u1E03': 'b',
            '\u1E05': 'b',
            '\u1E07': 'b',
            '\u0180': 'b',
            '\u0183': 'b',
            '\u0253': 'b',
            '\u24D2': 'c',
            '\uFF43': 'c',
            '\u0107': 'c',
            '\u0109': 'c',
            '\u010B': 'c',
            '\u010D': 'c',
            '\u00E7': 'c',
            '\u1E09': 'c',
            '\u0188': 'c',
            '\u023C': 'c',
            '\uA73F': 'c',
            '\u2184': 'c',
            '\u24D3': 'd',
            '\uFF44': 'd',
            '\u1E0B': 'd',
            '\u010F': 'd',
            '\u1E0D': 'd',
            '\u1E11': 'd',
            '\u1E13': 'd',
            '\u1E0F': 'd',
            '\u0111': 'd',
            '\u018C': 'd',
            '\u0256': 'd',
            '\u0257': 'd',
            '\uA77A': 'd',
            '\u01F3': 'dz',
            '\u01C6': 'dz',
            '\u24D4': 'e',
            '\uFF45': 'e',
            '\u00E8': 'e',
            '\u00E9': 'e',
            '\u00EA': 'e',
            '\u1EC1': 'e',
            '\u1EBF': 'e',
            '\u1EC5': 'e',
            '\u1EC3': 'e',
            '\u1EBD': 'e',
            '\u0113': 'e',
            '\u1E15': 'e',
            '\u1E17': 'e',
            '\u0115': 'e',
            '\u0117': 'e',
            '\u00EB': 'e',
            '\u1EBB': 'e',
            '\u011B': 'e',
            '\u0205': 'e',
            '\u0207': 'e',
            '\u1EB9': 'e',
            '\u1EC7': 'e',
            '\u0229': 'e',
            '\u1E1D': 'e',
            '\u0119': 'e',
            '\u1E19': 'e',
            '\u1E1B': 'e',
            '\u0247': 'e',
            '\u025B': 'e',
            '\u01DD': 'e',
            '\u24D5': 'f',
            '\uFF46': 'f',
            '\u1E1F': 'f',
            '\u0192': 'f',
            '\uA77C': 'f',
            '\u24D6': 'g',
            '\uFF47': 'g',
            '\u01F5': 'g',
            '\u011D': 'g',
            '\u1E21': 'g',
            '\u011F': 'g',
            '\u0121': 'g',
            '\u01E7': 'g',
            '\u0123': 'g',
            '\u01E5': 'g',
            '\u0260': 'g',
            '\uA7A1': 'g',
            '\u1D79': 'g',
            '\uA77F': 'g',
            '\u24D7': 'h',
            '\uFF48': 'h',
            '\u0125': 'h',
            '\u1E23': 'h',
            '\u1E27': 'h',
            '\u021F': 'h',
            '\u1E25': 'h',
            '\u1E29': 'h',
            '\u1E2B': 'h',
            '\u1E96': 'h',
            '\u0127': 'h',
            '\u2C68': 'h',
            '\u2C76': 'h',
            '\u0265': 'h',
            '\u0195': 'hv',
            '\u24D8': 'i',
            '\uFF49': 'i',
            '\u00EC': 'i',
            '\u00ED': 'i',
            '\u00EE': 'i',
            '\u0129': 'i',
            '\u012B': 'i',
            '\u012D': 'i',
            '\u00EF': 'i',
            '\u1E2F': 'i',
            '\u1EC9': 'i',
            '\u01D0': 'i',
            '\u0209': 'i',
            '\u020B': 'i',
            '\u1ECB': 'i',
            '\u012F': 'i',
            '\u1E2D': 'i',
            '\u0268': 'i',
            '\u0131': 'i',
            '\u24D9': 'j',
            '\uFF4A': 'j',
            '\u0135': 'j',
            '\u01F0': 'j',
            '\u0249': 'j',
            '\u24DA': 'k',
            '\uFF4B': 'k',
            '\u1E31': 'k',
            '\u01E9': 'k',
            '\u1E33': 'k',
            '\u0137': 'k',
            '\u1E35': 'k',
            '\u0199': 'k',
            '\u2C6A': 'k',
            '\uA741': 'k',
            '\uA743': 'k',
            '\uA745': 'k',
            '\uA7A3': 'k',
            '\u24DB': 'l',
            '\uFF4C': 'l',
            '\u0140': 'l',
            '\u013A': 'l',
            '\u013E': 'l',
            '\u1E37': 'l',
            '\u1E39': 'l',
            '\u013C': 'l',
            '\u1E3D': 'l',
            '\u1E3B': 'l',
            '\u017F': 'l',
            '\u0142': 'l',
            '\u019A': 'l',
            '\u026B': 'l',
            '\u2C61': 'l',
            '\uA749': 'l',
            '\uA781': 'l',
            '\uA747': 'l',
            '\u01C9': 'lj',
            '\u24DC': 'm',
            '\uFF4D': 'm',
            '\u1E3F': 'm',
            '\u1E41': 'm',
            '\u1E43': 'm',
            '\u0271': 'm',
            '\u026F': 'm',
            '\u24DD': 'n',
            '\uFF4E': 'n',
            '\u01F9': 'n',
            '\u0144': 'n',
            '\u00F1': 'n',
            '\u1E45': 'n',
            '\u0148': 'n',
            '\u1E47': 'n',
            '\u0146': 'n',
            '\u1E4B': 'n',
            '\u1E49': 'n',
            '\u019E': 'n',
            '\u0272': 'n',
            '\u0149': 'n',
            '\uA791': 'n',
            '\uA7A5': 'n',
            '\u01CC': 'nj',
            '\u24DE': 'o',
            '\uFF4F': 'o',
            '\u00F2': 'o',
            '\u00F3': 'o',
            '\u00F4': 'o',
            '\u1ED3': 'o',
            '\u1ED1': 'o',
            '\u1ED7': 'o',
            '\u1ED5': 'o',
            '\u00F5': 'o',
            '\u1E4D': 'o',
            '\u022D': 'o',
            '\u1E4F': 'o',
            '\u014D': 'o',
            '\u1E51': 'o',
            '\u1E53': 'o',
            '\u014F': 'o',
            '\u022F': 'o',
            '\u0231': 'o',
            '\u00F6': 'o',
            '\u022B': 'o',
            '\u1ECF': 'o',
            '\u0151': 'o',
            '\u01D2': 'o',
            '\u020D': 'o',
            '\u020F': 'o',
            '\u01A1': 'o',
            '\u1EDD': 'o',
            '\u1EDB': 'o',
            '\u1EE1': 'o',
            '\u1EDF': 'o',
            '\u1EE3': 'o',
            '\u1ECD': 'o',
            '\u1ED9': 'o',
            '\u01EB': 'o',
            '\u01ED': 'o',
            '\u00F8': 'o',
            '\u01FF': 'o',
            '\u0254': 'o',
            '\uA74B': 'o',
            '\uA74D': 'o',
            '\u0275': 'o',
            '\u01A3': 'oi',
            '\u0223': 'ou',
            '\uA74F': 'oo',
            '\u24DF': 'p',
            '\uFF50': 'p',
            '\u1E55': 'p',
            '\u1E57': 'p',
            '\u01A5': 'p',
            '\u1D7D': 'p',
            '\uA751': 'p',
            '\uA753': 'p',
            '\uA755': 'p',
            '\u24E0': 'q',
            '\uFF51': 'q',
            '\u024B': 'q',
            '\uA757': 'q',
            '\uA759': 'q',
            '\u24E1': 'r',
            '\uFF52': 'r',
            '\u0155': 'r',
            '\u1E59': 'r',
            '\u0159': 'r',
            '\u0211': 'r',
            '\u0213': 'r',
            '\u1E5B': 'r',
            '\u1E5D': 'r',
            '\u0157': 'r',
            '\u1E5F': 'r',
            '\u024D': 'r',
            '\u027D': 'r',
            '\uA75B': 'r',
            '\uA7A7': 'r',
            '\uA783': 'r',
            '\u24E2': 's',
            '\uFF53': 's',
            '\u00DF': 's',
            '\u015B': 's',
            '\u1E65': 's',
            '\u015D': 's',
            '\u1E61': 's',
            '\u0161': 's',
            '\u1E67': 's',
            '\u1E63': 's',
            '\u1E69': 's',
            '\u0219': 's',
            '\u015F': 's',
            '\u023F': 's',
            '\uA7A9': 's',
            '\uA785': 's',
            '\u1E9B': 's',
            '\u24E3': 't',
            '\uFF54': 't',
            '\u1E6B': 't',
            '\u1E97': 't',
            '\u0165': 't',
            '\u1E6D': 't',
            '\u021B': 't',
            '\u0163': 't',
            '\u1E71': 't',
            '\u1E6F': 't',
            '\u0167': 't',
            '\u01AD': 't',
            '\u0288': 't',
            '\u2C66': 't',
            '\uA787': 't',
            '\uA729': 'tz',
            '\u24E4': 'u',
            '\uFF55': 'u',
            '\u00F9': 'u',
            '\u00FA': 'u',
            '\u00FB': 'u',
            '\u0169': 'u',
            '\u1E79': 'u',
            '\u016B': 'u',
            '\u1E7B': 'u',
            '\u016D': 'u',
            '\u00FC': 'u',
            '\u01DC': 'u',
            '\u01D8': 'u',
            '\u01D6': 'u',
            '\u01DA': 'u',
            '\u1EE7': 'u',
            '\u016F': 'u',
            '\u0171': 'u',
            '\u01D4': 'u',
            '\u0215': 'u',
            '\u0217': 'u',
            '\u01B0': 'u',
            '\u1EEB': 'u',
            '\u1EE9': 'u',
            '\u1EEF': 'u',
            '\u1EED': 'u',
            '\u1EF1': 'u',
            '\u1EE5': 'u',
            '\u1E73': 'u',
            '\u0173': 'u',
            '\u1E77': 'u',
            '\u1E75': 'u',
            '\u0289': 'u',
            '\u24E5': 'v',
            '\uFF56': 'v',
            '\u1E7D': 'v',
            '\u1E7F': 'v',
            '\u028B': 'v',
            '\uA75F': 'v',
            '\u028C': 'v',
            '\uA761': 'vy',
            '\u24E6': 'w',
            '\uFF57': 'w',
            '\u1E81': 'w',
            '\u1E83': 'w',
            '\u0175': 'w',
            '\u1E87': 'w',
            '\u1E85': 'w',
            '\u1E98': 'w',
            '\u1E89': 'w',
            '\u2C73': 'w',
            '\u24E7': 'x',
            '\uFF58': 'x',
            '\u1E8B': 'x',
            '\u1E8D': 'x',
            '\u24E8': 'y',
            '\uFF59': 'y',
            '\u1EF3': 'y',
            '\u00FD': 'y',
            '\u0177': 'y',
            '\u1EF9': 'y',
            '\u0233': 'y',
            '\u1E8F': 'y',
            '\u00FF': 'y',
            '\u1EF7': 'y',
            '\u1E99': 'y',
            '\u1EF5': 'y',
            '\u01B4': 'y',
            '\u024F': 'y',
            '\u1EFF': 'y',
            '\u24E9': 'z',
            '\uFF5A': 'z',
            '\u017A': 'z',
            '\u1E91': 'z',
            '\u017C': 'z',
            '\u017E': 'z',
            '\u1E93': 'z',
            '\u1E95': 'z',
            '\u01B6': 'z',
            '\u0225': 'z',
            '\u0240': 'z',
            '\u2C6C': 'z',
            '\uA763': 'z',
            '\u0386': '\u0391',
            '\u0388': '\u0395',
            '\u0389': '\u0397',
            '\u038A': '\u0399',
            '\u03AA': '\u0399',
            '\u038C': '\u039F',
            '\u038E': '\u03A5',
            '\u03AB': '\u03A5',
            '\u038F': '\u03A9',
            '\u03AC': '\u03B1',
            '\u03AD': '\u03B5',
            '\u03AE': '\u03B7',
            '\u03AF': '\u03B9',
            '\u03CA': '\u03B9',
            '\u0390': '\u03B9',
            '\u03CC': '\u03BF',
            '\u03CD': '\u03C5',
            '\u03CB': '\u03C5',
            '\u03B0': '\u03C5',
            '\u03C9': '\u03C9',
            '\u03C2': '\u03C3'
        };

        var $match = function(a){
            return diacritics[a] || a;
        };

        return text.replace(/[^\u0000-\u007E]/g, $match);
    };

    /**
     * Tokenize plugin main function
     *
     * @param {object} options
     * @returns {object|Tokenize2|Array}
     */
    function Plugin(options){

        var $items = [];
        this.filter('select').each(function(){
            var $this = $(this);
            var $data = $this.data('tokenize2');
            var $options = typeof options === 'object' && options;
            if(!$data){
                $this.data('tokenize2', new Tokenize2(this, $options));
            }
            $items.push($this.data('tokenize2'));
        });

        if($items.length > 1){
            return $items;
        } else {
            return $items[0];
        }
    }

    var old = $.fn.tokenize2;

    /**
     * jQuery plugin entry
     */
    $.fn.tokenize2 = Plugin;
    $.fn.tokenize2.Constructor = Tokenize2;
    $.fn.tokenize2.noConflict = function(){
        $.fn.tokenize2 = old;
        return this;
    }

}));

/* ===================================================
 *  jquery-sortable.js v0.9.13
 *  http://johnny.github.com/jquery-sortable/
 * ===================================================
 *  Copyright (c) 2012 Jonas von Andrian
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  * The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ========================================================== */

!function ( $, window, pluginName, undefined){
    var containerDefaults = {
            // If true, items can be dragged from this container
            drag: true,
            // If true, items can be droped onto this container
            drop: true,
            // Exclude items from being draggable, if the
            // selector matches the item
            exclude: "",
            // If true, search for nested containers within an item.If you nest containers,
            // either the original selector with which you call the plugin must only match the top containers,
            // or you need to specify a group (see the bootstrap nav example)
            nested: true,
            // If true, the items are assumed to be arranged vertically
            vertical: true
        }, // end container defaults
        groupDefaults = {
            // This is executed after the placeholder has been moved.
            // $closestItemOrContainer contains the closest item, the placeholder
            // has been put at or the closest empty Container, the placeholder has
            // been appended to.
            afterMove: function ($placeholder, container, $closestItemOrContainer) {
            },
            // The exact css path between the container and its items, e.g. "> tbody"
            containerPath: "",
            // The css selector of the containers
            containerSelector: "ol, ul",
            // Distance the mouse has to travel to start dragging
            distance: 0,
            // Time in milliseconds after mousedown until dragging should start.
            // This option can be used to prevent unwanted drags when clicking on an element.
            delay: 0,
            // The css selector of the drag handle
            handle: "",
            // The exact css path between the item and its subcontainers.
            // It should only match the immediate items of a container.
            // No item of a subcontainer should be matched. E.g. for ol>div>li the itemPath is "> div"
            itemPath: "",
            // The css selector of the items
            itemSelector: "li",
            // The class given to "body" while an item is being dragged
            bodyClass: "dragging",
            // The class giving to an item while being dragged
            draggedClass: "dragged",
            // Check if the dragged item may be inside the container.
            // Use with care, since the search for a valid container entails a depth first search
            // and may be quite expensive.
            isValidTarget: function ($item, container) {
                return true
            },
            // Executed before onDrop if placeholder is detached.
            // This happens if pullPlaceholder is set to false and the drop occurs outside a container.
            onCancel: function ($item, container, _super, event) {
            },
            // Executed at the beginning of a mouse move event.
            // The Placeholder has not been moved yet.
            onDrag: function ($item, position, _super, event) {
                $item.css(position)
            },
            // Called after the drag has been started,
            // that is the mouse button is being held down and
            // the mouse is moving.
            // The container is the closest initialized container.
            // Therefore it might not be the container, that actually contains the item.
            onDragStart: function ($item, container, _super, event) {
                $item.css({
                    height: $item.outerHeight(),
                    width: $item.outerWidth()
                })
                $item.addClass(container.group.options.draggedClass)
                $("body").addClass(container.group.options.bodyClass)
            },
            // Called when the mouse button is being released
            onDrop: function ($item, container, _super, event) {
                $item.removeClass(container.group.options.draggedClass).removeAttr("style")
                $("body").removeClass(container.group.options.bodyClass)
            },
            // Called on mousedown. If falsy value is returned, the dragging will not start.
            // Ignore if element clicked is input, select or textarea
            onMousedown: function ($item, _super, event) {
                if (!event.target.nodeName.match(/^(input|select|textarea)$/i)) {
                    event.preventDefault()
                    return true
                }
            },
            // The class of the placeholder (must match placeholder option markup)
            placeholderClass: "placeholder",
            // Template for the placeholder. Can be any valid jQuery input
            // e.g. a string, a DOM element.
            // The placeholder must have the class "placeholder"
            placeholder: '<li class="placeholder"></li>',
            // If true, the position of the placeholder is calculated on every mousemove.
            // If false, it is only calculated when the mouse is above a container.
            pullPlaceholder: true,
            // Specifies serialization of the container group.
            // The pair $parent/$children is either container/items or item/subcontainers.
            serialize: function ($parent, $children, parentIsContainer) {
                var result = $.extend({}, $parent.data())

                if(parentIsContainer)
                    return [$children]
                else if ($children[0]){
                    result.children = $children
                }

                delete result.subContainers
                delete result.sortable

                return result
            },
            // Set tolerance while dragging. Positive values decrease sensitivity,
            // negative values increase it.
            tolerance: 0
        }, // end group defaults
        containerGroups = {},
        groupCounter = 0,
        emptyBox = {
            left: 0,
            top: 0,
            bottom: 0,
            right:0
        },
        eventNames = {
            start: "touchstart.sortable mousedown.sortable",
            drop: "touchend.sortable touchcancel.sortable mouseup.sortable",
            drag: "touchmove.sortable mousemove.sortable",
            scroll: "scroll.sortable"
        },
        subContainerKey = "subContainers"

    /*
     * a is Array [left, right, top, bottom]
     * b is array [left, top]
     */
    function d(a,b) {
        var x = Math.max(0, a[0] - b[0], b[0] - a[1]),
            y = Math.max(0, a[2] - b[1], b[1] - a[3])
        return x+y;
    }

    function setDimensions(array, dimensions, tolerance, useOffset) {
        var i = array.length,
            offsetMethod = useOffset ? "offset" : "position"
        tolerance = tolerance || 0

        while(i--){
            var el = array[i].el ? array[i].el : $(array[i]),
                // use fitting method
                pos = el[offsetMethod]()
            pos.left += parseInt(el.css('margin-left'), 10)
            pos.top += parseInt(el.css('margin-top'),10)
            dimensions[i] = [
                pos.left - tolerance,
                pos.left + el.outerWidth() + tolerance,
                pos.top - tolerance,
                pos.top + el.outerHeight() + tolerance
            ]
        }
    }

    function getRelativePosition(pointer, element) {
        var offset = element.offset()
        return {
            left: pointer.left - offset.left,
            top: pointer.top - offset.top
        }
    }

    function sortByDistanceDesc(dimensions, pointer, lastPointer) {
        pointer = [pointer.left, pointer.top]
        lastPointer = lastPointer && [lastPointer.left, lastPointer.top]

        var dim,
            i = dimensions.length,
            distances = []

        while(i--){
            dim = dimensions[i]
            distances[i] = [i,d(dim,pointer), lastPointer && d(dim, lastPointer)]
        }
        distances = distances.sort(function  (a,b) {
            return b[1] - a[1] || b[2] - a[2] || b[0] - a[0]
        })

        // last entry is the closest
        return distances
    }

    function ContainerGroup(options) {
        this.options = $.extend({}, groupDefaults, options)
        this.containers = []

        if(!this.options.rootGroup){
            this.scrollProxy = $.proxy(this.scroll, this)
            this.dragProxy = $.proxy(this.drag, this)
            this.dropProxy = $.proxy(this.drop, this)
            this.placeholder = $(this.options.placeholder)

            if(!options.isValidTarget)
                this.options.isValidTarget = undefined
        }
    }

    ContainerGroup.get = function  (options) {
        if(!containerGroups[options.group]) {
            if(options.group === undefined)
                options.group = groupCounter ++

            containerGroups[options.group] = new ContainerGroup(options)
        }

        return containerGroups[options.group]
    }

    ContainerGroup.prototype = {
        dragInit: function  (e, itemContainer) {
            this.$document = $(itemContainer.el[0].ownerDocument)

            // get item to drag
            var closestItem = $(e.target).closest(this.options.itemSelector);
            // using the length of this item, prevents the plugin from being started if there is no handle being clicked on.
            // this may also be helpful in instantiating multidrag.
            if (closestItem.length) {
                this.item = closestItem;
                this.itemContainer = itemContainer;
                if (this.item.is(this.options.exclude) || !this.options.onMousedown(this.item, groupDefaults.onMousedown, e)) {
                    return;
                }
                this.setPointer(e);
                this.toggleListeners('on');
                this.setupDelayTimer();
                this.dragInitDone = true;
            }
        },
        drag: function  (e) {
            if(!this.dragging){
                if(!this.distanceMet(e) || !this.delayMet)
                    return

                this.options.onDragStart(this.item, this.itemContainer, groupDefaults.onDragStart, e)
                this.item.before(this.placeholder)
                this.dragging = true
            }

            this.setPointer(e)
            // place item under the cursor
            this.options.onDrag(this.item,
                getRelativePosition(this.pointer, this.item.offsetParent()),
                groupDefaults.onDrag,
                e)

            var p = this.getPointer(e),
                box = this.sameResultBox,
                t = this.options.tolerance

            if(!box || box.top - t > p.top || box.bottom + t < p.top || box.left - t > p.left || box.right + t < p.left)
                if(!this.searchValidTarget()){
                    this.placeholder.detach()
                    this.lastAppendedItem = undefined
                }
        },
        drop: function  (e) {
            this.toggleListeners('off')

            this.dragInitDone = false

            if(this.dragging){
                // processing Drop, check if placeholder is detached
                if(this.placeholder.closest("html")[0]){
                    this.placeholder.before(this.item).detach()
                } else {
                    this.options.onCancel(this.item, this.itemContainer, groupDefaults.onCancel, e)
                }
                this.options.onDrop(this.item, this.getContainer(this.item), groupDefaults.onDrop, e)

                // cleanup
                this.clearDimensions()
                this.clearOffsetParent()
                this.lastAppendedItem = this.sameResultBox = undefined
                this.dragging = false
            }
        },
        searchValidTarget: function  (pointer, lastPointer) {
            if(!pointer){
                pointer = this.relativePointer || this.pointer
                lastPointer = this.lastRelativePointer || this.lastPointer
            }

            var distances = sortByDistanceDesc(this.getContainerDimensions(),
                pointer,
                lastPointer),
                i = distances.length

            while(i--){
                var index = distances[i][0],
                    distance = distances[i][1]

                if(!distance || this.options.pullPlaceholder){
                    var container = this.containers[index]
                    if(!container.disabled){
                        if(!this.$getOffsetParent()){
                            var offsetParent = container.getItemOffsetParent()
                            pointer = getRelativePosition(pointer, offsetParent)
                            lastPointer = getRelativePosition(lastPointer, offsetParent)
                        }
                        if(container.searchValidTarget(pointer, lastPointer))
                            return true
                    }
                }
            }
            if(this.sameResultBox)
                this.sameResultBox = undefined
        },
        movePlaceholder: function  (container, item, method, sameResultBox) {
            var lastAppendedItem = this.lastAppendedItem
            if(!sameResultBox && lastAppendedItem && lastAppendedItem[0] === item[0])
                return;

            item[method](this.placeholder)
            this.lastAppendedItem = item
            this.sameResultBox = sameResultBox
            this.options.afterMove(this.placeholder, container, item)
        },
        getContainerDimensions: function  () {
            if(!this.containerDimensions)
                setDimensions(this.containers, this.containerDimensions = [], this.options.tolerance, !this.$getOffsetParent())
            return this.containerDimensions
        },
        getContainer: function  (element) {
            return element.closest(this.options.containerSelector).data(pluginName)
        },
        $getOffsetParent: function  () {
            if(this.offsetParent === undefined){
                var i = this.containers.length - 1,
                    offsetParent = this.containers[i].getItemOffsetParent()

                if(!this.options.rootGroup){
                    while(i--){
                        if(offsetParent[0] != this.containers[i].getItemOffsetParent()[0]){
                            // If every container has the same offset parent,
                            // use position() which is relative to this parent,
                            // otherwise use offset()
                            // compare #setDimensions
                            offsetParent = false
                            break;
                        }
                    }
                }

                this.offsetParent = offsetParent
            }
            return this.offsetParent
        },
        setPointer: function (e) {
            var pointer = this.getPointer(e)

            if(this.$getOffsetParent()){
                var relativePointer = getRelativePosition(pointer, this.$getOffsetParent())
                this.lastRelativePointer = this.relativePointer
                this.relativePointer = relativePointer
            }

            this.lastPointer = this.pointer
            this.pointer = pointer
        },
        distanceMet: function (e) {
            var currentPointer = this.getPointer(e)
            return (Math.max(
                Math.abs(this.pointer.left - currentPointer.left),
                Math.abs(this.pointer.top - currentPointer.top)
            ) >= this.options.distance)
        },
        getPointer: function(e) {
            var o = e.originalEvent || e.originalEvent.touches && e.originalEvent.touches[0]
            return {
                left: e.pageX || o.pageX,
                top: e.pageY || o.pageY
            }
        },
        setupDelayTimer: function () {
            var that = this
            this.delayMet = !this.options.delay

            // init delay timer if needed
            if (!this.delayMet) {
                clearTimeout(this._mouseDelayTimer);
                this._mouseDelayTimer = setTimeout(function() {
                    that.delayMet = true
                }, this.options.delay)
            }
        },
        scroll: function  (e) {
            this.clearDimensions()
            this.clearOffsetParent() // TODO is this needed?
        },
        toggleListeners: function (method) {
            var that = this,
                events = ['drag','drop','scroll']

            $.each(events,function  (i,event) {
                that.$document[method](eventNames[event], that[event + 'Proxy'])
            })
        },
        clearOffsetParent: function () {
            this.offsetParent = undefined
        },
        // Recursively clear container and item dimensions
        clearDimensions: function  () {
            this.traverse(function(object){
                object._clearDimensions()
            })
        },
        traverse: function(callback) {
            callback(this)
            var i = this.containers.length
            while(i--){
                this.containers[i].traverse(callback)
            }
        },
        _clearDimensions: function(){
            this.containerDimensions = undefined
        },
        _destroy: function () {
            containerGroups[this.options.group] = undefined
        }
    }

    function Container(element, options) {
        this.el = element
        this.options = $.extend( {}, containerDefaults, options)

        this.group = ContainerGroup.get(this.options)
        this.rootGroup = this.options.rootGroup || this.group
        this.handle = this.rootGroup.options.handle || this.rootGroup.options.itemSelector

        var itemPath = this.rootGroup.options.itemPath
        this.target = itemPath ? this.el.find(itemPath) : this.el

        this.target.on(eventNames.start, this.handle, $.proxy(this.dragInit, this))

        if(this.options.drop)
            this.group.containers.push(this)
    }

    Container.prototype = {
        dragInit: function  (e) {
            var rootGroup = this.rootGroup

            if( !this.disabled &&
                !rootGroup.dragInitDone &&
                this.options.drag &&
                this.isValidDrag(e)) {
                rootGroup.dragInit(e, this)
            }
        },
        isValidDrag: function(e) {
            return e.which == 1 ||
                e.type == "touchstart" && e.originalEvent.touches.length == 1
        },
        searchValidTarget: function  (pointer, lastPointer) {
            var distances = sortByDistanceDesc(this.getItemDimensions(),
                pointer,
                lastPointer),
                i = distances.length,
                rootGroup = this.rootGroup,
                validTarget = !rootGroup.options.isValidTarget ||
                    rootGroup.options.isValidTarget(rootGroup.item, this)

            if(!i && validTarget){
                rootGroup.movePlaceholder(this, this.target, "append")
                return true
            } else
                while(i--){
                    var index = distances[i][0],
                        distance = distances[i][1]
                    if(!distance && this.hasChildGroup(index)){
                        var found = this.getContainerGroup(index).searchValidTarget(pointer, lastPointer)
                        if(found)
                            return true
                    }
                    else if(validTarget){
                        this.movePlaceholder(index, pointer)
                        return true
                    }
                }
        },
        movePlaceholder: function  (index, pointer) {
            var item = $(this.items[index]),
                dim = this.itemDimensions[index],
                method = "after",
                width = item.outerWidth(),
                height = item.outerHeight(),
                offset = item.offset(),
                sameResultBox = {
                    left: offset.left,
                    right: offset.left + width,
                    top: offset.top,
                    bottom: offset.top + height
                }
            if(this.options.vertical){
                var yCenter = (dim[2] + dim[3]) / 2,
                    inUpperHalf = pointer.top <= yCenter
                if(inUpperHalf){
                    method = "before"
                    sameResultBox.bottom -= height / 2
                } else
                    sameResultBox.top += height / 2
            } else {
                var xCenter = (dim[0] + dim[1]) / 2,
                    inLeftHalf = pointer.left <= xCenter
                if(inLeftHalf){
                    method = "before"
                    sameResultBox.right -= width / 2
                } else
                    sameResultBox.left += width / 2
            }
            if(this.hasChildGroup(index))
                sameResultBox = emptyBox
            this.rootGroup.movePlaceholder(this, item, method, sameResultBox)
        },
        getItemDimensions: function  () {
            if(!this.itemDimensions){
                this.items = this.$getChildren(this.el, "item").filter(
                    ":not(." + this.group.options.placeholderClass + ", ." + this.group.options.draggedClass + ")"
                ).get()
                setDimensions(this.items, this.itemDimensions = [], this.options.tolerance)
            }
            return this.itemDimensions
        },
        getItemOffsetParent: function  () {
            var offsetParent,
                el = this.el
            // Since el might be empty we have to check el itself and
            // can not do something like el.children().first().offsetParent()
            if(el.css("position") === "relative" || el.css("position") === "absolute"  || el.css("position") === "fixed")
                offsetParent = el
            else
                offsetParent = el.offsetParent()
            return offsetParent
        },
        hasChildGroup: function (index) {
            return this.options.nested && this.getContainerGroup(index)
        },
        getContainerGroup: function  (index) {
            var childGroup = $.data(this.items[index], subContainerKey)
            if( childGroup === undefined){
                var childContainers = this.$getChildren(this.items[index], "container")
                childGroup = false

                if(childContainers[0]){
                    var options = $.extend({}, this.options, {
                        rootGroup: this.rootGroup,
                        group: groupCounter ++
                    })
                    childGroup = childContainers[pluginName](options).data(pluginName).group
                }
                $.data(this.items[index], subContainerKey, childGroup)
            }
            return childGroup
        },
        $getChildren: function (parent, type) {
            var options = this.rootGroup.options,
                path = options[type + "Path"],
                selector = options[type + "Selector"]

            parent = $(parent)
            if(path)
                parent = parent.find(path)

            return parent.children(selector)
        },
        _serialize: function (parent, isContainer) {
            var that = this,
                childType = isContainer ? "item" : "container",

                children = this.$getChildren(parent, childType).not(this.options.exclude).map(function () {
                    return that._serialize($(this), !isContainer)
                }).get()

            return this.rootGroup.options.serialize(parent, children, isContainer)
        },
        traverse: function(callback) {
            $.each(this.items || [], function(item){
                var group = $.data(this, subContainerKey)
                if(group)
                    group.traverse(callback)
            });

            callback(this)
        },
        _clearDimensions: function  () {
            this.itemDimensions = undefined
        },
        _destroy: function() {
            var that = this;

            this.target.off(eventNames.start, this.handle);
            this.el.removeData(pluginName)

            if(this.options.drop)
                this.group.containers = $.grep(this.group.containers, function(val){
                    return val != that
                })

            $.each(this.items || [], function(){
                $.removeData(this, subContainerKey)
            })
        }
    }

    var API = {
        enable: function() {
            this.traverse(function(object){
                object.disabled = false
            })
        },
        disable: function (){
            this.traverse(function(object){
                object.disabled = true
            })
        },
        serialize: function () {
            return this._serialize(this.el, true)
        },
        refresh: function() {
            this.traverse(function(object){
                object._clearDimensions()
            })
        },
        destroy: function () {
            this.traverse(function(object){
                object._destroy();
            })
        }
    }

    $.extend(Container.prototype, API)

    /**
     * jQuery API
     *
     * Parameters are
     *   either options on init
     *   or a method name followed by arguments to pass to the method
     */
    $.fn[pluginName] = function(methodOrOptions) {
        var args = Array.prototype.slice.call(arguments, 1)

        return this.map(function(){
            var $t = $(this),
                object = $t.data(pluginName)

            if(object && API[methodOrOptions])
                return API[methodOrOptions].apply(object, args) || this
            else if(!object && (methodOrOptions === undefined ||
                typeof methodOrOptions === "object"))
                $t.data(pluginName, new Container($t, methodOrOptions))

            return this
        });
    };

}(jQuery, window, 'tokenize2sortable');