https://www.designerpages.com/assets/lib/jquery.flexText-598c81c5f…c41bdca6763158629cef30b13e51ad2f0edae9dd.js

1/**
2 * jQuery flexText: Auto-height textareas
3 * --------------------------------------
4 * Requires: jQuery 1.7+
5 * Usage example: $('textarea').flexText()
6 * Info: https://github.com/alexdunphy/flexible-textareas
7 */
8
9;(function ($) {
10
11    // Constructor
12    function FT(elem) {
13        this.$textarea = $(elem);
14
15        this._init();
16    }
17
18    FT.prototype = {
19        _init: function () {
20            var _this = this;
21
22            // Insert wrapper elem & pre/span for textarea mirroring
23            this.$textarea.wrap('<div class="flex-text-wrap" />').before('<pre><span /><br /><br /></pre>');
24
25            this.$span = this.$textarea.prev().find('span');
26
27            // Add input event listeners
28            // * input for modern browsers
29            // * propertychange for IE 7 & 8
30            // * keyup for IE >= 9: catches keyboard-triggered undos/cuts/deletes
31            // * change for IE >= 9: catches mouse-triggered undos/cuts/deletions (when textarea loses focus)
32            this.$textarea.on('input propertychange keyup change', function () {
33                _this._mirror();
34            });
35
36            // jQuery val() strips carriage return chars by default (see http://api.jquery.com/val/)
37            // This causes issues in IE7, but a valHook can be used to preserve these chars
38            $.valHooks.textarea = {
39                get: function (elem) {
40                    return elem.value.replace(/\r?\n/g, "\r\n");
41                }
42            };
43
44            // Mirror contents once on init
45            this._mirror();
46        }
47
48        // Mirror pre/span & textarea contents
49        ,_mirror: function () {
50            this.$span.text(this.$textarea.val());
51        }
52    };
53
54    // jQuery plugin wrapper
55    $.fn.flexText = function () {
56        return this.each(function () {
57            // Check if already instantiated on this elem
58            if (!$.data(this, 'flexText')) {
59                // Instantiate & store elem + string
60                $.data(this, 'flexText', new FT(this));
61            }
62        });
63    };
64
65})(jQuery);