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Invert Skeletal formula on wiki pages using Template:Chembox or Template:drugbox (for dark mode)
// ==UserScript==
// @name Wikipedia Drug invert
// @namespace http://srsutherland.dev
// @version 2020.07.18
// @description Invert Skeletal formula on wiki pages using Template:Chembox or Template:drugbox (for dark mode)
// @author srsutherland
// @match *://en.wikipedia.org/wiki/*
// @match *://www.wikipedia.org/wiki/*
// @grant none
// ==/UserScript==
(function() {
'use strict';
console.log("Looking for drug infobox")
//infoboxes should have one of these links
const boxURLs = [
{url:"/wiki/IUPAC_nomenclature_of_chemistry", box:"Template:drugbox"},
{url:"/wiki/Chemical_nomenclature", box:"Template:Chembox"},
{url:"/wiki/CAS_Registry_Number", box:"Template:drugbox or Template:Chembox"}
]
let boxfound = false;
for (let item of boxURLs) {
if (document.querySelector(`.infobox a[href="${item.url}" i]`)) {
boxfound = true;
console.log(`Found ${item.box}`)
break;
}
}
if (boxfound) {
let skeleton = document.querySelector('.infobox img[src*=".svg" i]')
if (skeleton) {
console.log("found skeleton svg")
skeleton.style.filter = "invert(100%)"
} else {
console.log("Could not find skeleton SVG")
}
} else {
console.log("No drugbox or chembox found")
}
})();