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/*
* Copyright (c) 2015
*
* This file is licensed under the Affero General Public License version 3
* or later.
*
* See the COPYING-README file.
*
*/
/* global Select2 */
/**
* Select2 extension for toggling values in a multi-select dropdown
*
* Inspired by http://stackoverflow.com/a/27466159 and adjusted
*/
(function(Select2) {
var Select2FindHighlightableChoices = Select2.class.multi.prototype.findHighlightableChoices;
Select2.class.multi.prototype.findHighlightableChoices = function () {
if (this.opts.toggleSelect) {
return this.results.find('.select2-result-selectable:not(.select2-disabled)');
}
return Select2FindHighlightableChoices.apply(this, arguments);
};
var Select2TriggerSelect = Select2.class.multi.prototype.triggerSelect;
Select2.class.multi.prototype.triggerSelect = function (data) {
if (this.opts.toggleSelect && this.val().indexOf(this.id(data)) !== -1) {
var val = this.id(data);
var evt = $.Event('select2-removing');
evt.val = val;
evt.choice = data;
this.opts.element.trigger(evt);
if (evt.isDefaultPrevented()) {
return false;
}
var self = this;
this.results.find('.select2-result.select2-selected').each(function () {
var $this = $(this);
if (self.id($this.data('select2-data')) === val) {
$this.removeClass('select2-selected');
}
});
this.opts.element.trigger({ type: "select2-removed", val: this.id(data), choice: data });
this.triggerChange({ removed: data });
} else {
return Select2TriggerSelect.apply(this, arguments);
}
};
})(Select2);
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