Webtoons.com for Desktop

Resizes and downloads higher quality versions of the images on LINE (m.webtoons.com) to improve usability on Desktops and Laptops.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Webtoons.com for Desktop
// @description Resizes and downloads higher quality versions of the images on LINE (m.webtoons.com) to improve usability on Desktops and Laptops.
// @author      Gendalph
// @namespace   https://greasyfork.org/users/3807
// @include     http://*webtoons.com/viewer?*
// @version     2
// @grant       none
// @license     MIT
// ==/UserScript==

function main() {
	var img = document.createElement("img"),
		imgUrl = document.querySelector('._checkVisible').src;
	img.src = imgUrl;

	img.onload = function() {
		var heightResizeFactor = img.height / document.querySelector('._checkVisible').height;

		img.style.visibility = 'hidden';
		document.body.appendChild(img);

		console.log("Detected frame width: " + img.clientWidth + "px");
		resizeFrames(img.clientWidth);
		resizeViewer(heightResizeFactor);
	};
}

function resizeFrames(width) {
	var imageList = document.querySelectorAll('._checkVisible'),
		containerDivs = document.querySelectorAll('.flick-ct'),
		imageWidth = width,
		containerMargin = (document.body.clientWidth - imageWidth) / 2;
	containerMargin = "0px " + containerMargin + "px";

	for (var i = 0; i < imageList.length; i++) {
		var image = imageList[i],
			container = containerDivs[i];

		container.style.width = width + "px";
		container.style.margin = containerMargin;
		image.src = image.src.replace("?type=q70", "");
	}
}

function resizeViewer(factor) {
	var viewer = document.querySelector('#_viewer'),
		height = Number(viewer.style.height.replace('px', '')) * factor;
	viewer.style.height = height + "px";
}

main();