Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

​

/**

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

 */

(function($) {

    'use strict';

​

    function update(e) {

        if (e.which === 13) {

            this.closest('form').dispatchEvent(new SubmitEvent('submit', {

                bubbles: true,

                cancelable: true,

                submitter: this

            }));

​

            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.

         */

        const $textarea = $(this);

​

        var old_value = $textarea.val(),

            new_value = old_value

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

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

​

        const scrollable = getScrollableParent($textarea[0]);

        const scrollable_pos = scrollable !== null ? scrollable.scrollTop : 0;

​

        if (old_value !== new_value) {

            var pos = $textarea[0].selectionStart;

​

            $textarea.val(new_value);

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

        }

​

        updateHeight($textarea);

​

        // Fire event.

        $textarea.trigger('resize');

​

        if (scrollable !== null) {

            scrollable.scrollTop = scrollable_pos;

        }

    }

​