Simon Stålenhag Wallpaper Downloader

instructions.md

1. Go to the pages for any of the books:

• Europa Mekano http://simonstalenhag.se/euromek.html
• The Labyrinth http://simonstalenhag.se/labyrinth.html
• The Electric State http://simonstalenhag.se/es.html
• Things From The Flood http://simonstalenhag.se/tftf.html
• Tales From The Loop http://simonstalenhag.se/tftl.html

2. Run the script by pasting it into the console

simon.js

(() => {
  'use strict';

  const dqs = document.querySelector.bind(document);
  const dqsa = document.querySelectorAll.bind(document);
  if (dqs('#jesus') || dqs('span.style9')) {
    (dqs('#jesus') || dqs('span.style9')).remove();
  }

  const anchors = dqsa('a');
  const downloadlink = document.createElement('a');
  const linksToDownload = [];

  const counter = document.createElement('div');
  counter.style.cssText = `
  	display: flex;
	position: fixed;
	justify-content: center;
	align-items: center;
	top: 0;
	right: 0;
	padding: .4em 1.6em;
	font-size: 16pt;
	width: auto;
	min-width: 5vw;
	height: 5vh;
	border-radius: 0 0 0 2em;
	background: #FFF;
	box-shadow: -4px 5px 13px 0px rgba(0,0,0,0.5);
	`;	
  counter.id = 'jesus';
  dqs('#god').appendChild(counter);

  // Find all images that link to the full-res versions. Every other version is a detailed (i.e. zoomed-in) version of the same image.
  for (let i = 0; i < anchors.length; i++) {
      if (anchors[i].href && anchors[i].href.includes('bilderbig') && !linksToDownload.includes(anchors[i].href)) {
          linksToDownload.push(anchors[i].href);
      };
  }

  dqs('#jesus').innerText = `Downloading 0/${linksToDownload.length}`;

  // Download all the images we found earlier - one every 2000 milliseconds to prevent congestion
  let linkIndex = 0;
  let downloadInterval = setInterval(() => {
      if (linkIndex === linksToDownload.length) {
      console.log("Done downloading");
          clearInterval(downloadInterval);
          dqs('#jesus').innerText = `Done downloading.`;
          setTimeout(() => {
          	dqs('#jesus').remove();
          }, 5000);
      }

      dqs('#jesus').innerText = `Downloading ${linkIndex + 1}/${linksToDownload.length}\nTime remaining: ${SecondsToFullTime((linksToDownload.length - linkIndex + 1) * 2)}`;

      downloadlink.download = linksToDownload[linkIndex].split('/')[1].split('.')[0];
      downloadlink.href = linksToDownload[linkIndex];
      downloadlink.click();

      linkIndex++;
  }, 2000);

  const SecondsToFullTime = seconds => {
	const remainingHours = pad(Math.round(seconds / 3600 % 60));
	const remainingMinutes = pad(Math.round(seconds / 60 % 60));
	const remaingSeconds = pad(Math.round(seconds % 60));
	return remainingHours + ':' + remainingMinutes + ':' + remaingSeconds;
  }

  const pad = int => {
  	return int > 9 ? int : '0' + int;
  }
})();