Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

​

/**

 * @event resize - Event fired on textarea size change.

 */

(function($) {

    'use strict';

​

    function update(e) {

        const $textarea = $(this);

​

        if (e.which === 13) {

            // Simulate input behavior by submitting form on enter key.

​

            var $form = $(this).closest('form'),

                $submit = $form.find('button:submit:first');

​

            if ($submit.length) {

                $submit.click();

            }

            else {

                $form.submit();

            }

​

            return false;

        }

​

        /**

         * Simulate input behaviour by replacing newlines with space character.

         * NB! WebKit based browsers add a newline character to textarea when translating content to the next line.

         */

        var old_value = $textarea.val(),

            new_value = old_value

                .replace(/\r?\n+$/g, '')

                .replace(/\r?\n/g, ' '),

            scroll_pos = $(window).scrollTop();

​

        if (old_value !== new_value) {

            var pos = $textarea[0].selectionStart;

​

            $textarea.val(new_value);

            $textarea[0].setSelectionRange(pos, pos);

        }

​

        // Resize textarea.