JSFiddle - React, Tailwind, and code Playground

by karthick6891

HTML

<page size="A4" style="visibility:hidden;"><span>
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up
  one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum
  et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section
  1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English
  versions from the 1914 translation by H. Rackham. Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor
  at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from
  sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem
  ipsum dolor sit amet..", comes from a line in section 1.10.32. The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections...

CSS

body {
  background: rgb(204, 204, 204);
}

page {
  background: white;
  display: block;
  text-align: justify;
  margin: 20px;
  margin-bottom: 0.5cm;
  box-shadow: 0 0 0.5cm rgba(0, 0, 0, 0.5);
}

page[size="A4"] {
  width: 21cm;
  height: 29.7cm;
  padding: 20px;
}

.generated {
    padding: 20px;
    width: 21cm;
    overflow: hidden;
    visibility: hidden;
}
span {
    height: 100%;
    display: inline-block;
    overflow: hidden;   
    line-height: 1em;
}
@media print {
  body,
  page {
    margin: 0;
    box-shadow: 0;
  }
}

JavaScript

var contentHeight = $('page').height();
var contentWidth =  $('page').width();
var lineHeight = document.defaultView.getComputedStyle($('page span')[0]).getPropertyValue('line-height');
var fontSize = document.defaultView.getComputedStyle($('page span')[0]).getPropertyValue('font-size');
var noOfLines = Math.round(contentHeight / parseInt(lineHeight));
console.log(noOfLines);
var content = $('page').text();
var words = content.split(" ");

var pageTemplate = $('<page class="generated"><span></span></page>')
var currentPage = 0;
var currentPageElement;

var breakAt = [];
words.forEach(function(word, index){
			if($('.generated').length > 0) {   
      		console.log(getNoOfLines(currentPageElement))
          if(getNoOfLines(currentPageElement) == noOfLines) {          		
              currentPageElement = $('.generated span');
              currentPageElement.text("");
              console.log(word, index, words[index-1]);
              breakAt.push({'index': index, "word": words[index-1]});
              currentPageElement.text(words[index-1] + " " +word);
          } else {
          	var content = currentPageElement.text();
            currentPageElement.text(content+ " " +word);
          }
          
          
      } else {
         $('body').append($('<page class="generated"><span></span></page>'));
         currentPageElement = $('.generated:eq('+currentPage+') span');
         currentPageElement.text(word);
      }
});
console.log(breakAt)
function getNoOfLines(pageElement) {
	var generatedPageLineHeight = document.defaultView.getComputedStyle(pageElement[0]).getPropertyValue('line-height');
  return  Math.round($(pageElement).height() / parseInt(generatedPageLineHeight));
}