"Auto resize Text Area"
Bootstrap 3.0.0 Snippet by Roselo

<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <div class="col-lg-8"> <div class="well well-lg"> <div class="media1"> <a class="pull-left" href="#"> <img class="media-object img-circle" width="80px" src="data:image/png;base64,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" alt="Generic placeholder image"> </a> <div class="media-body"> <div class="form-group" style="padding:12px;"> <textarea class="form-control animated" placeholder="Update your status"></textarea> <button class="btn btn-info pull-right" style="margin-top:10px" type="button">Share</button> </div> </div> </div> </div> <!-- well-sm --> </div> </div> </div> <script> $(function(){ $('.normal').autosize(); $('.animated').autosize({append: "\n"}); }); </script>
.animated { -webkit-transition: height 0.2s; -moz-transition: height 0.2s; transition: height 0.2s; }
/*! Autosize v1.18.1 - 2013-11-05 Automatically adjust textarea height based on user input. (c) 2013 Jack Moore - http://www.jacklmoore.com/autosize license: http://www.opensource.org/licenses/mit-license.php */ (function ($) { var defaults = { className: 'autosizejs', append: '', callback: false, resizeDelay: 10 }, // border:0 is unnecessary, but avoids a bug in Firefox on OSX copy = '<textarea tabindex="-1" style="position:absolute; top:-999px; left:0; right:auto; bottom:auto; border:0; padding: 0; -moz-box-sizing:content-box; -webkit-box-sizing:content-box; box-sizing:content-box; word-wrap:break-word; height:0 !important; min-height:0 !important; overflow:hidden; transition:none; -webkit-transition:none; -moz-transition:none;"/>', // line-height is conditionally included because IE7/IE8/old Opera do not return the correct value. typographyStyles = [ 'fontFamily', 'fontSize', 'fontWeight', 'fontStyle', 'letterSpacing', 'textTransform', 'wordSpacing', 'textIndent' ], // to keep track which textarea is being mirrored when adjust() is called. mirrored, // the mirror element, which is used to calculate what size the mirrored element should be. mirror = $(copy).data('autosize', true)[0]; // test that line-height can be accurately copied. mirror.style.lineHeight = '99px'; if ($(mirror).css('lineHeight') === '99px') { typographyStyles.push('lineHeight'); } mirror.style.lineHeight = ''; $.fn.autosize = function (options) { if (!this.length) { return this; } options = $.extend({}, defaults, options || {}); if (mirror.parentNode !== document.body) { $(document.body).append(mirror); } return this.each(function () { var ta = this, $ta = $(ta), maxHeight, minHeight, boxOffset = 0, callback = $.isFunction(options.callback), originalStyles = { height: ta.style.height, overflow: ta.style.overflow, overflowY: ta.style.overflowY, wordWrap: ta.style.wordWrap, resize: ta.style.resize }, timeout, width = $ta.width(); if ($ta.data('autosize')) { // exit if autosize has already been applied, or if the textarea is the mirror element. return; } $ta.data('autosize', true); if ($ta.css('box-sizing') === 'border-box' || $ta.css('-moz-box-sizing') === 'border-box' || $ta.css('-webkit-box-sizing') === 'border-box'){ boxOffset = $ta.outerHeight() - $ta.height(); } // IE8 and lower return 'auto', which parses to NaN, if no min-height is set. minHeight = Math.max(parseInt($ta.css('minHeight'), 10) - boxOffset || 0, $ta.height()); $ta.css({ overflow: 'hidden', overflowY: 'hidden', wordWrap: 'break-word', // horizontal overflow is hidden, so break-word is necessary for handling words longer than the textarea width resize: ($ta.css('resize') === 'none' || $ta.css('resize') === 'vertical') ? 'none' : 'horizontal' }); // The mirror width must exactly match the textarea width, so using getBoundingClientRect because it doesn't round the sub-pixel value. function setWidth() { var style, width; if ('getComputedStyle' in window) { style = window.getComputedStyle(ta, null); width = ta.getBoundingClientRect().width; $.each(['paddingLeft', 'paddingRight', 'borderLeftWidth', 'borderRightWidth'], function(i,val){ width -= parseInt(style[val],10); }); mirror.style.width = width + 'px'; } else { // window.getComputedStyle, getBoundingClientRect returning a width are unsupported and unneeded in IE8 and lower. mirror.style.width = Math.max($ta.width(), 0) + 'px'; } } function initMirror() { var styles = {}; mirrored = ta; mirror.className = options.className; maxHeight = parseInt($ta.css('maxHeight'), 10); // mirror is a duplicate textarea located off-screen that // is automatically updated to contain the same text as the // original textarea. mirror always has a height of 0. // This gives a cross-browser supported way getting the actual // height of the text, through the scrollTop property. $.each(typographyStyles, function(i,val){ styles[val] = $ta.css(val); }); $(mirror).css(styles); setWidth(); // Chrome-specific fix: // When the textarea y-overflow is hidden, Chrome doesn't reflow the text to account for the space // made available by removing the scrollbar. This workaround triggers the reflow for Chrome. if (window.chrome) { var width = ta.style.width; ta.style.width = '0px'; var ignore = ta.offsetWidth; ta.style.width = width; } } // Using mainly bare JS in this function because it is going // to fire very often while typing, and needs to very efficient. function adjust() { var height, original; if (mirrored !== ta) { initMirror(); } else { setWidth(); } mirror.value = ta.value + options.append; mirror.style.overflowY = ta.style.overflowY; original = parseInt(ta.style.height,10); // Setting scrollTop to zero is needed in IE8 and lower for the next step to be accurately applied mirror.scrollTop = 0; mirror.scrollTop = 9e4; // Using scrollTop rather than scrollHeight because scrollHeight is non-standard and includes padding. height = mirror.scrollTop; if (maxHeight && height > maxHeight) { ta.style.overflowY = 'scroll'; height = maxHeight; } else { ta.style.overflowY = 'hidden'; if (height < minHeight) { height = minHeight; } } height += boxOffset; if (original !== height) { ta.style.height = height + 'px'; if (callback) { options.callback.call(ta,ta); } } } function resize () { clearTimeout(timeout); timeout = setTimeout(function(){ var newWidth = $ta.width(); if (newWidth !== width) { width = newWidth; adjust(); } }, parseInt(options.resizeDelay,10)); } if ('onpropertychange' in ta) { if ('oninput' in ta) { // Detects IE9. IE9 does not fire onpropertychange or oninput for deletions, // so binding to onkeyup to catch most of those occasions. There is no way that I // know of to detect something like 'cut' in IE9. $ta.on('input.autosize keyup.autosize', adjust); } else { // IE7 / IE8 $ta.on('propertychange.autosize', function(){ if(event.propertyName === 'value'){ adjust(); } }); } } else { // Modern Browsers $ta.on('input.autosize', adjust); } // Set options.resizeDelay to false if using fixed-width textarea elements. // Uses a timeout and width check to reduce the amount of times adjust needs to be called after window resize. if (options.resizeDelay !== false) { $(window).on('resize.autosize', resize); } // Event for manual triggering if needed. // Should only be needed when the value of the textarea is changed through JavaScript rather than user input. $ta.on('autosize.resize', adjust); // Event for manual triggering that also forces the styles to update as well. // Should only be needed if one of typography styles of the textarea change, and the textarea is already the target of the adjust method. $ta.on('autosize.resizeIncludeStyle', function() { mirrored = null; adjust(); }); $ta.on('autosize.destroy', function(){ mirrored = null; clearTimeout(timeout); $(window).off('resize', resize); $ta .off('autosize') .off('.autosize') .css(originalStyles) .removeData('autosize'); }); // Call adjust in case the textarea already contains text. adjust(); }); }; }(window.jQuery || window.$)); // jQuery or jQuery-like library, such as Zepto

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Questions / Comments:

Doesn't work on avighnamerchandising.com = you could figure out if it's a bug in coding.

Sagar Yadav () - 3 years ago - Reply 0