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/**
 * Fabrik Dropdown Element
 *
 * @copyright: Copyright (C) 2005-2013, fabrikar.com - All rights reserved.
 * @license:   GNU/GPL http://www.gnu.org/copyleft/gpl.html
 */

define(['jquery', 'fab/element'], function (jQuery,
FbElement) {
    window.FbDropdown = new Class({
        Extends   : FbElement,
        initialize: function (element, options) {
            this.setPlugin('fabrikdropdown');
            this.parent(element, options);
            if (this.options.allowadd === true &&
this.options.editable !== false) {
                this.watchAddToggle();
                this.watchAdd();
            }
        },

        watchAddToggle: function () {
            var c = this.getContainer();
            var d = c.getElement('div.addoption');

            var a = c.getElement('.toggle-addoption');
            if (this.mySlider) {
                //copied in repeating group so need to remove old slider
html first
                var clone = d.clone();
                var fe = c.getElement('.fabrikElement');
                d.getParent().destroy();
                fe.adopt(clone);
                d = c.getElement('div.addoption');
                d.setStyle('margin', 0);
                var ad = d.getElement('input[name*=_additions]');
                ad.id = this.element.id + '_additions';
                ad.name = this.element.id + '_additions';

            }
            this.mySlider = new Fx.Slide(d, {
                duration: 500
            });
            this.mySlider.hide();
            a.addEvent('click', function (e) {
                e.stop();
                this.mySlider.toggle();
            }.bind(this));
        },

        addClick: function (e) {
            var c = this.getContainer(), val,
                l = c.getElement('input[name=addPicklistLabel]'),
                v = c.getElement('input[name=addPicklistValue]'),
                label = l.value;
            if (v) {
                val = v.value;
            } else {
                val = label;
            }
            if (val === '' || label === '') {
               
window.alert(Joomla.JText._('PLG_ELEMENT_DROPDOWN_ENTER_VALUE_LABEL'));
            }
            else {
                var opt = new Element('option', {
                    'selected': 'selected',
                    'value'   : val
                }).set('text',
label).inject(document.id(this.element.id));
                e.stop();
                if (v) {
                    v.value = '';
                }
                l.value = '';
                this.addNewOption(val, label);
                document.id(this.element.id).fireEvent('change',
{
                    stop: function () {
                    }
                });
                if (this.mySlider) {
                    this.mySlider.toggle();
                }
                if (this.options.advanced) {
                    jQuery('#' +
this.element.id).trigger("chosen:updated");
                }
            }
        },

        watchAdd: function () {
            var val;
            if (this.options.allowadd === true &&
this.options.editable !== false) {
                var id = this.element.id;
                var c = this.getContainer();
                if (this.addClickEvent) {
                   
c.getElement('input[type=button]').removeEvent('click',
this.addClickEvent);
                }
                this.addClickEvent = this.addClick.bind(this);
               
c.getElement('input[type=button]').addEvent('click',
this.addClickEvent);
            }
        },

        getValue: function () {
            if (!this.options.editable) {
                if (!this.options.multiple) {
                    return this.options.value[0];
                }
                return this.options.value;
            }
            if (typeOf(this.element.get('value')) ===
'null') {
                return '';
            }
            if (this.options.multiple) {
                var r = [];
                this.element.getElements('option').each(function
(opt) {
                    if (opt.selected) {
                        r.push(opt.value);
                    }
                });
                return r;
            }
            return this.element.get('value');
        },

        reset: function () {
            var v = this.options.defaultVal;
            this.update(v);
        },

        update: function (val) {
            var opts = [];

            if (typeOf(val) === 'string' && val ===
'') {
                val = '[]';
            }

            if ((typeOf(val) === 'string') &&
(JSON.validate(val))) {
                val = JSON.parse(val);
            }

            if (typeOf(val) === 'null') {
                val = [];
            }

            this.getElement();
            if (typeOf(this.element) === 'null') {
                return;
            }
            this.options.element = this.element.id;
            if (!this.options.editable) {
                this.element.set('html', '');
                var h = $H(this.options.data);
                val.each(function (v) {
                    this.element.innerHTML += h.get(v) + "<br
/>";
                }.bind(this));
                return;
            }
            opts = this.element.getElements('option');
            if (typeOf(val) === 'number') {

                // Numbers dont have indexOf() methods so ensure they are
strings
                val = val.toString();
            }
            for (var i = 0; i < opts.length; i++) {
                if (val.indexOf(opts[i].value) !== -1) {
                    opts[i].selected = true;
                } else {
                    opts[i].selected = false;
                }
            }

            if (this.options.advanced) {
                jQuery('#' +
this.element.id).trigger('chosen:updated');
            }

            this.watchAdd();
        },

        cloned: function (c) {
            if (this.options.allowadd === true &&
this.options.editable !== false) {
                this.watchAddToggle();
                this.watchAdd();
            }
            this.parent(c);
        }

    });

    return window.FbDropdown;
});