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