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107 lines
2.5 KiB
107 lines
2.5 KiB
/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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/**
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* @event resize - Event fired on textarea size change.
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*/
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(function($) {
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'use strict';
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function update(e) {
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const $textarea = $(this);
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if (e.which === 13) {
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// Simulate input behavior by submitting form on enter key.
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var $form = $(this).closest('form'),
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$submit = $form.find('button:submit:first');
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if ($submit.length) {
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$submit.click();
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}
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else {
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$form.submit();
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}
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return false;
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}
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/**
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* Simulate input behaviour by replacing newlines with space character.
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* NB! WebKit based browsers add a newline character to textarea when translating content to the next line.
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*/
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var old_value = $textarea.val(),
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new_value = old_value
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.replace(/\r?\n+$/g, '')
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.replace(/\r?\n/g, ' '),
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scroll_pos = $(window).scrollTop();
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if (old_value !== new_value) {
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var pos = $textarea[0].selectionStart;
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$textarea.val(new_value);
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$textarea[0].setSelectionRange(pos, pos);
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}
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// Resize textarea.
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$textarea
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.height(0)
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.innerHeight($textarea[0].scrollHeight);
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// Fire event.
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$textarea.trigger('resize');
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$(window).scrollTop(scroll_pos);
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}
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var methods = {
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init: function() {
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return this.each(function() {
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var $textarea = $(this);
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$textarea
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.off('input keydown paste', update)
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.on('input keydown paste', update)
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.trigger('input');
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});
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},
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clean: function() {
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return this.each(function() {
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var $textarea = $(this);
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$textarea
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.val('')
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.css('height', '');
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});
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}
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};
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/**
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* Flexible textarea helper.
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*/
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$.fn.textareaFlexible = function(method) {
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if (methods[method]) {
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return methods[method].apply(this, Array.prototype.slice.call(arguments, 1));
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}
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return methods.init.apply(this, arguments);
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};
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})(jQuery);
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