// ==UserScript==
// @name GitHub HTML Preview
// @version 1.0.6
// @description A userscript that adds preview links to HTML files
// @license MIT
// @author Rob Garrison
// @namespace https://github.com/Mottie
// @match https://github.com/*
// @run-at document-idle
// @grant none
// @require https://greasyfork.org/scripts/28721-mutations/code/mutations.js?version=1108163
// @require https://greasyfork.org/scripts/398877-utils-js/code/utilsjs.js?version=1079637
// @icon https://github.githubassets.com/pinned-octocat.svg
// @updateURL https://raw.githubusercontent.com/Mottie/GitHub-userscripts/master/github-html-preview.user.js
// @downloadURL https://raw.githubusercontent.com/Mottie/GitHub-userscripts/master/github-html-preview.user.js
// @supportURL https://github.com/Mottie/GitHub-userscripts/issues
// ==/UserScript==
/* global $ $$ on */
(() => {
"use strict";
// Example page: https://github.com/codrops/DecorativeLetterAnimations
// Source: https://github.com/htmlpreview/htmlpreview.github.com
const prefix = "https://htmlpreview.github.io/?";
// html & htm extensions
const regex = /\.html?$/;
const link = document.createElement("a");
link.className = "ghhp-btn py-0 v-align-baseline tooltipped tooltipped-e";
link.setAttribute("aria-label", "Open in new tab");
link.target = "_blank";
link.innerHTML = `
`;
link.style.marginRight = ".25rem";
function addLink(el) {
const cell = el.closest(".js-navigation-item div[role='rowheader'] span");
if (cell && !$(".ghhp-btn", cell)) {
const preview = link.cloneNode(true);
preview.href = prefix + el.href;
cell.prepend(preview);
}
}
function init() {
if ($("#files")) {
const files = $("#files").parentElement;
$$(".js-navigation-item div[role='rowheader'] .js-navigation-open", files).forEach(el => {
if (regex.test(el.title)) {
addLink(el);
}
});
}
}
on(document, "ghmo:container", () => {
// init after a short delay to allow rendering of file list
setTimeout(() => {
init();
}, 200);
});
init();
})();
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