https://www.lavprishvidevarer.dk/cache/jquery-b9e29ec79920e420dde8…4d5-d41d8cd98f00b204e9800998ecf8427e-lph.js

1
2
3(function($)
4{
5    /**
6* Auto-growing textareas; technique ripped from Facebook
7*
8* http://github.com/jaz303/jquery-grab-bag/tree/master/javascripts/jquery.autogrow-textarea.js
9*/
10    $.fn.autogrow = function(options)
11    {
12        return this.filter('textarea').each(function()
13        {
14            var self = this;
15            var $self = $(self);
16            var minHeight = $self.height();
17            var noFlickerPad = $self.hasClass('autogrow-short') ? 0 : parseInt($self.css('lineHeight'));
18
19            var shadow = $('<div></div>').css({
20                position: 'absolute',
21                top: -10000,
22                left: -10000,
23                width: $self.width(),
24                fontSize: $self.css('fontSize'),
25                fontFamily: $self.css('fontFamily'),
26                fontWeight: $self.css('fontWeight'),
27                lineHeight: $self.css('lineHeight'),
28                resize: 'none'
29            }).appendTo(document.body);
30
31            var update = function()
32            {
33                var times = function(string, number)
34                {
35                    for (var i=0, r=''; i<number; i++) r += string;
36                    return r;
37                };
38
39                var val = self.value.replace(/</g, '&lt;')
40                                    .replace(/>/g, '&gt;')
41                                    .replace(/&/g, '&amp;')
42                                    .replace(/\n$/, '<br/>&nbsp;')
43                                    .replace(/\n/g, '<br/>')
44                                    .replace(/ {2,}/g, function(space){ return times('&nbsp;', space.length - 1) + ' ' });
45
46                shadow.css('width', $self.width());
47                shadow.html(val);
48                $self.css('height', Math.max(shadow.height() + noFlickerPad, minHeight));
49            }
50
51            $self.change(update).keyup(update).keydown(update);
52            $(window).resize(update);
53
54            update();
55        });
56    };
57})(jQuery);