/**
 * calculateNodeHeight(uiTextNode, useCache = false)
 */

const HIDDEN_TEXTAREA_STYLE = `
  min-height:0 !important;
  max-height:none !important;
  height:0 !important;
  visibility:hidden !important;
  overflow:hidden !important;
  position:absolute !important;
  z-index:-1000 !important;
  top:0 !important;
  right:0 !important
`;

const SIZING_STYLE = [
  'letter-spacing',
  'line-height',
  'padding-top',
  'padding-bottom',
  'font-family',
  'font-weight',
  'font-size',
  'text-rendering',
  'text-transform',
  'width',
  'text-indent',
  'padding-left',
  'padding-right',
  'border-width',
  'box-sizing'
];

let computedStyleCache = {};
let hiddenTextarea;

export default function calculateNodeHeight(uiTextNode,
    useCache = false,
    minRows = null, maxRows = null) {
  if (!hiddenTextarea) {
    hiddenTextarea = document.createElement('textarea');
    document.body.appendChild(hiddenTextarea);
  }

  // Copy all CSS properties that have an impact on the height of the content in
  // the textbox
  let {
    paddingSize, borderSize,
    boxSizing, sizingStyle
  } = calculateNodeStyling(uiTextNode, useCache);

  // Need to have the overflow attribute to hide the scrollbar otherwise
  // text-lines will not calculated properly as the shadow will technically be
  // narrower for content
  hiddenTextarea.setAttribute('style', sizingStyle + ';' + HIDDEN_TEXTAREA_STYLE);
  hiddenTextarea.value = uiTextNode.value || uiTextNode.placeholder || 'x';

  let minHeight = -Infinity;
  let maxHeight = Infinity;
  let height = hiddenTextarea.scrollHeight;

  if (boxSizing === 'border-box') {
    // border-box: add border, since height = content + padding + border
    height = height + borderSize;
  } else if (boxSizing === 'content-box') {
    // remove padding, since height = content
    height = height - paddingSize;
  }

  if (minRows !== null || maxRows !== null) {
    // measure height of a textarea with a single row
    hiddenTextarea.value = 'x';
    let singleRowHeight = hiddenTextarea.scrollHeight - paddingSize;
    if (minRows !== null) {
      minHeight = singleRowHeight * minRows;
      if (boxSizing === 'border-box') {
        minHeight = minHeight + paddingSize + borderSize;
      }
      height = Math.max(minHeight, height);
    }
    if (maxRows !== null) {
      maxHeight = singleRowHeight * maxRows;
      if (boxSizing === 'border-box') {
        maxHeight = maxHeight + paddingSize + borderSize;
      }
      height = Math.min(maxHeight, height);
    }
  }
  return {height, minHeight, maxHeight};
}

function calculateNodeStyling(node, useCache = false) {
  let nodeRef = (
    node.getAttribute('id') ||
    node.getAttribute('data-reactid') ||
    node.getAttribute('name')
  );

  if (useCache && computedStyleCache[nodeRef]) {
    return computedStyleCache[nodeRef];
  }

  let style = window.getComputedStyle(node);

  let boxSizing = (
    style.getPropertyValue('box-sizing') ||
    style.getPropertyValue('-moz-box-sizing') ||
    style.getPropertyValue('-webkit-box-sizing')
  );

  let paddingSize = (
    parseFloat(style.getPropertyValue('padding-bottom')) +
    parseFloat(style.getPropertyValue('padding-top'))
  );

  let borderSize = (
    parseFloat(style.getPropertyValue('border-bottom-width')) +
    parseFloat(style.getPropertyValue('border-top-width'))
  );

  let sizingStyle = SIZING_STYLE
    .map(name => `${name}:${style.getPropertyValue(name)}`)
    .join(';');

  let nodeInfo = {
    sizingStyle,
    paddingSize,
    borderSize,
    boxSizing
  };

  if (useCache && nodeRef) {
    computedStyleCache[nodeRef] = nodeInfo;
  }

  return nodeInfo;
}

@@ -89,12 +89,13 @@
 E = 
-%60
+%7B
 %0A  
+'
 min-
@@ -100,33 +100,27 @@
 n-height
-:0 !important;
+': '0',
 %0A  
+'
 max-heig
@@ -125,51 +125,39 @@
 ight
-:none !important;
+': 'none',
 %0A  
+'
 height
-:0 !important;
+': '0',
 %0A  
+'
 visi
@@ -166,38 +166,32 @@
 lity
-:
+': '
 hidden
- !important;
+',
 %0A  
+'
 overflow
 :hid
@@ -190,38 +190,32 @@
 flow
-:
+': '
 hidden
- !important;
+',
 %0A  
+'
 position
 :abs
@@ -214,17 +214,20 @@
 tion
-:
+': '
 absolute
  !im
@@ -226,91 +226,63 @@
 lute
- !important;
+',
 %0A  
+'
 z-index
-:
+': '
 -1000
- !important;
+',
 %0A  
+'
 top
-:0 !important;
+': '0',
 %0A  
+'
 right
-:0 !important%0A%60
+': '0'%0A%7D
 ;%0A%0Ac
@@ -1265,86 +1265,243 @@
 t%0A  
-hiddenTextarea.setAttribute('style', sizingStyle + ';' + HIDDEN_TEXTAREA_STYLE
+Object.keys(sizingStyle).map((key) =%3E %7B%0A    hiddenTextarea.style%5Bkey%5D = sizingStyle%5Bkey%5D;%0A  %7D);%0A  Object.keys(HIDDEN_TEXTAREA_STYLE).map((key) =%3E %7B%0A    hiddenTextarea.style.setProperty(key, HIDDEN_TEXTAREA_STYLE%5Bkey%5D, 'important');%0A  %7D
 );%0A 
@@ -3481,31 +3481,50 @@
    .
-map(
+reduce((obj, 
 name
+)
  =%3E 
-%60$%7Bname%7D:$%7B
+%7B%0A      obj%5Bname%5D = 
 styl
@@ -3551,25 +3551,37 @@
 ame)
-%7D%60)
+;
 %0A    
-.join(';'
+  return obj;%0A    %7D, %7B%7D
 );%0A%0A

Apply style attributes directly instead of setAttribute, to avoid CSP unsafe-inline issues