Makes Instagram preview images full-sized
// ==UserScript==
// @name Big Instagram Images
// @author Arnold François Lecherche
// @namespace greasyfork.org
// @icon https://instagramstatic-a.akamaihd.net/h1/images/ico/favicon.ico/dfa85bb1fd63.ico
// @version 0.0.2
// @description Makes Instagram preview images full-sized
// @include http://instagram.com/*
// @include http://*.instagram.com/*
// @include https://instagram.com/*
// @include https://*.instagram.com/*
// @run-at document-end
// @copyright 2017 Arnold François Lecherche
// ==/UserScript==
(function (d, S, undefined) {
'use strict';
var si = /\/s\d+x\d+\//g, sh = /\/sh\d\.\d+\//g, cr = /\/c\d[\d\.]+\d\//g, t = +(new Date()),
k = '$Download$' + S(Math.random()).substring(2) + '$';
function enlarge() {
var imgs = d.images, i = imgs.length, s, a, p, l, n, m;
while (i--) {
m = imgs[i];
s = S(m.src || '');
if (si.test(s)) s = s.replace(si, '/');
if (sh.test(s)) s = s.replace(sh, '/');
if (cr.test(s)) s = s.replace(cr, '/');
if (s && s !== m.src) m.src = s;
a = m.parentNode.parentNode.parentNode;
if (a.nodeName.toLowerCase() === 'a' && a.href.indexOf('taken-by=') > -1) {
p = d.createElement('span');
p.setAttribute('class', a.getAttribute('class'));
l = a.childNodes;
for (n = l.length; n--;) if (l[n].nodeType === 1) p.appendChild(l[n]);
a.parentNode.insertBefore(p,a);
a.appendChild(d.createTextNode('Info'));
a.rel = 'noopener noreferrer nofollow';
a.style.display = 'inline';
a.style.width = 'auto';
a.target = '_blank';
p.appendChild(a);
a = d.createElement('a');
a.appendChild(d.createTextNode('Download'));
a.rel = 'noopener noreferrer nofollow';
a.style.float = 'right';
a.download = '';
a.href = s;
p.appendChild(a);
}
p = m.parentNode.parentNode.parentNode.parentNode;
if (p.nodeName.toLowerCase() !== 'article') p = p.parentNode;
if (p.nodeName.toLowerCase() === 'article' && !(k in p)) {
a = d.createElement('a');
a.appendChild(d.createTextNode('Download'));
a.rel = 'noopener noreferrer nofollow';
a.style.float = 'right';
a.download = '';
a.href = s;
p[k] = true;
p.appendChild(a);
}
}
imgs = a = p = l = m = null;
}
function gatekeeper(evt) {
var n = +(new Date());
if (n - t < 100) return;
t = n;
enlarge();
}
enlarge();
d.addEventListener('DOMContentLoaded', enlarge, false);
d.addEventListener('load', enlarge, false);
d.addEventListener('click', enlarge, false);
d.addEventListener('mousemove', gatekeeper, false);
d.addEventListener('keydown', gatekeeper, false);
d.addEventListener('scroll', gatekeeper, false);
})(document, String);