autosize.min.js

!function(e,t){"use strict";"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?module.exports=t():e.autosize=t()}(this,function(){function e(e){function t(){var t=window.getComputedStyle(e,null);"vertical"===t.resize?e.style.resize="none":"both"===t.resize&&(e.style.resize="horizontal"),e.style.wordWrap="break-word";var i=e.style.width;e.style.width="0px",e.offsetWidth,e.style.width=i,n="none"!==t.maxHeight?parseFloat(t.maxHeight):!1,r="content-box"===t.boxSizing?-(parseFloat(t.paddingTop)+parseFloat(t.paddingBottom)):parseFloat(t.borderTopWidth)+parseFloat(t.borderBottomWidth),o()}function o(){var t=e.style.height,o=document.documentElement.scrollTop,i=document.body.scrollTop;e.style.height="auto";var s=e.scrollHeight+r;if(n!==!1&&s>n?(s=n,"scroll"!==e.style.overflowY&&(e.style.overflowY="scroll")):"hidden"!==e.style.overflowY&&(e.style.overflowY="hidden"),e.style.height=s+"px",document.documentElement.scrollTop=o,document.body.scrollTop=i,t!==e.style.height){var d=document.createEvent("Event");d.initEvent("autosize.resized",!0,!1),e.dispatchEvent(d)}}if(e&&e.nodeName&&"TEXTAREA"===e.nodeName&&!e.hasAttribute("data-autosize-on")){var n,r;"onpropertychange"in e&&"oninput"in e&&e.addEventListener("keyup",o),window.addEventListener("resize",o),e.addEventListener("input",o),e.addEventListener("autosize.update",o),e.addEventListener("autosize.destroy",function(t){window.removeEventListener("resize",o),e.removeEventListener("input",o),e.removeEventListener("keyup",o),e.removeEventListener("autosize.destroy"),Object.keys(t).forEach(function(o){e.style[o]=t[o]}),e.removeAttribute("data-autosize-on")}.bind(e,{height:e.style.height,overflow:e.style.overflow,overflowY:e.style.overflowY,wordWrap:e.style.wordWrap,resize:e.style.resize})),e.setAttribute("data-autosize-on",!0),e.style.overflow="hidden",e.style.overflowY="hidden",t()}}return"function"!=typeof window.getComputedStyle?function(e){return e}:function(t){return t&&t.length?Array.prototype.forEach.call(t,e):t&&t.nodeName&&e(t),t}});