GitHub HTML Preview

A userscript that adds preview links to HTML files
当前为 2019-03-30 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name        GitHub HTML Preview
// @version     0.1.0
// @description A userscript that adds preview links to HTML files
// @license     MIT
// @author      Rob Garrison
// @namespace   https://github.com/Mottie
// @include     https://github.com/*
// @run-at      document-idle
// @grant       none
// @require     https://gf.qytechs.cn/scripts/28721-mutations/code/mutations.js?version=666427
// @icon        https://github.githubassets.com/pinned-octocat.svg
// ==/UserScript==
(() => {
	"use strict";
	// Example page: https://github.com/codrops/DecorativeLetterAnimations
	// Source: https://github.com/htmlpreview/htmlpreview.github.com
	const prefix = "http://htmlpreview.github.io/?";
	// html & htm extensions
	const regex = /\.html?$/;

	const link = document.createElement("a");
	link.className = "ghhp-btn btn btn-sm py-0 px-1 tooltipped tooltipped-n";
	link.setAttribute("aria-label", "Open in new tab");
	link.target = "_blank";
	link.innerHTML = `
		<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24">
			<path d="M19 19H5V5h7V3H5a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7h-2v7zM14 3v2h3.59l-9.83 9.83 1.41 1.41L19 6.41V10h2V3h-7z"/>
		</svg>`;

	function addLink(el) {
		const cell = el.closest("td.content");
		if (!$(".ghhp-btn", cell)) {
			const preview = link.cloneNode(true);
			preview.href = prefix + el.href;
			cell.appendChild(preview);
		}
	}

	function init() {
		if ($("table.files")) {
			const files = $(".file-wrap");
			$$("td.content .js-navigation-open", files).forEach(el => {
				if (regex.test(el.title)) {
					addLink(el);
				}
			});
		}
	}

	function $(str, el) {
		return (el || document).querySelector(str);
	}

	function $$(str, el) {
		return [...(el || document).querySelectorAll(str)];
	}

	document.addEventListener("ghmo:container", () => {
		// init after a short delay to allow rendering of file list
		setTimeout(() => {
			init();
		}, 200);
	});
	init();

})();
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