GitHub Custom Navigation

A userscript that allows you to customize GitHub's main navigation bar

Pada tanggal 12 Februari 2018. Lihat %(latest_version_link).

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        GitHub Custom Navigation
// @version     1.1.0
// @description A userscript that allows you to customize GitHub's main navigation bar
// @license     MIT
// @author      Rob Garrison
// @namespace   https://github.com/Mottie
// @include     https://github.com/*
// @include     https://gist.github.com/*
// @run-at      document-end
// @grant       GM_addStyle
// @grant       GM_getValue
// @grant       GM_setValue
// @icon        https://assets-cdn.github.com/pinned-octocat.svg
// @require     https://cdnjs.cloudflare.com/ajax/libs/dragula/3.7.2/dragula.js
// ==/UserScript==
(() => {
	"use strict";

	// open menu via hash
	const panelHash = "#github-custom-nav-settings",

		// get user name; or empty string if not logged in
		user = $("meta[name='user-login']") &&
			$("meta[name='user-login']").getAttribute("content") || "",

		defaults = {
			github: [
				"pr", "issues", "gist", "separator", "stars", "watching", "separator",
				"profile", "blog", "marketplace", "explore", "menu"
			],
			gists: [
				"gistall", "giststars", "github", "separator", "pr", "issues", "stars",
				"watching", "separator", "profile", "blog", "marketplace", "explore", "menu"
			],

			currentLink: "pr",
			// using full length url so the links work from any subdomain (e.g. gist pages)
			items: {
				"advsearch": {
					url: "https://github.com/search/advanced",
					tooltip: "Advanced Search",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' width='16' viewBox='0 0 16 16'><path d='M15.7 14.3L11.89 10.47c0.7-0.98 1.11-2.17 1.11-3.47 0-3.31-2.69-6-6-6S1 3.69 1 7s2.69 6 6 6c1.3 0 2.48-0.41 3.47-1.11l3.83 3.81c0.19 0.2 0.45 0.3 0.7 0.3s0.52-0.09 0.7-0.3c0.39-0.39 0.39-1.02 0-1.41zM7 11.7c-2.59 0-4.7-2.11-4.7-4.7s2.11-4.7 4.7-4.7 4.7 2.11 4.7 4.7-2.11 4.7-4.7 4.7z'/></svg>"
				},
				"blog": {
					url: "https://github.com/blog",
					tooltip: "Blog",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 16 16' width='16'><path d='M9 9H8c.55 0 1-.45 1-1V7c0-.55-.45-1-1-1H7c-.55 0-1 .45-1 1v1c0 .55.45 1 1 1H6c-.55 0-1 .45-1 1v2h1v3c0 .55.45 1 1 1h1c.55 0 1-.45 1-1v-3h1v-2c0-.55-.45-1-1-1zM7 7h1v1H7V7zm2 4H8v4H7v-4H6v-1h3v1zm2.09-3.5c0-1.98-1.61-3.59-3.59-3.59A3.593 3.593 0 0 0 4 8.31v1.98c-.61-.77-1-1.73-1-2.8 0-2.48 2.02-4.5 4.5-4.5S12 5.01 12 7.49c0 1.06-.39 2.03-1 2.8V8.31c.06-.27.09-.53.09-.81zm3.91 0c0 2.88-1.63 5.38-4 6.63v-1.05a6.553 6.553 0 0 0 3.09-5.58A6.59 6.59 0 0 0 7.5.91 6.59 6.59 0 0 0 .91 7.5c0 2.36 1.23 4.42 3.09 5.58v1.05A7.497 7.497 0 0 1 7.5 0C11.64 0 15 3.36 15 7.5z'/></svg>"
				},
				"explore": {
					url: "https://github.com/explore",
					tooltip: "Explore",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 16 16' width='16'><path d='M8 0a8 8 0 1 0 0 16A8 8 0 0 0 8 0zm.6 14.5v-1H7.2v1a6.5 6.5 0 0 1-5.7-6h1V7.4h-1a6.5 6.5 0 0 1 5.7-5.8v1h1.4v-1a6.6 6.6 0 0 1 6 5.8h-1v1.3h1a6.5 6.5 0 0 1-6 6zm2.7-10.8l-4.5 3-2.2 4.8 4.7-3z'/></svg>"
				},
				"gist": {
					url: "https://gist.github.com/",
					tooltip: "Gist",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 12 16' width='12'><path d='M7.5 5L10 7.5 7.5 10l-.75-.75L8.5 7.5 6.75 5.75 7.5 5zm-3 0L2 7.5 4.5 10l.75-.75L3.5 7.5l1.75-1.75L4.5 5zM0 13V2c0-.55.45-1 1-1h10c.55 0 1 .45 1 1v11c0 .55-.45 1-1 1H1c-.55 0-1-.45-1-1zm1 0h10V2H1v11z'></path></svg>"
				},
				"gistall": {
					url: "https://gist.github.com/discover",
					tooltip: "Discover Gists",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 12 16' width='12'><path d='M7.5 5L10 7.5 7.5 10l-.75-.75L8.5 7.5 6.75 5.75 7.5 5zm-3 0L2 7.5 4.5 10l.75-.75L3.5 7.5l1.75-1.75L4.5 5zM0 13V2c0-.55.45-1 1-1h10c.55 0 1 .45 1 1v11c0 .55-.45 1-1 1H1c-.55 0-1-.45-1-1zm1 0h10V2H1v11z'></path></svg>"
				},
				"giststars": {
					url: "https://gist.github.com/${me}/starred",
					tooltip: "Starred Gists",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 14 16' width='14'><path d='M14 6l-4.9-.64L7 1 4.9 5.36 0 6l3.6 3.26L2.67 14 7 11.67 11.33 14l-.93-4.74z'></path></svg>"
				},
				"github": {
					url: "https://github.com",
					tooltip: "GitHub",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 16 16' width='16'><path d='M14.7 5.34c.13-.32.55-1.59-.13-3.31 0 0-1.05-.33-3.44 1.3-1-.28-2.07-.32-3.13-.32s-2.13.04-3.13.32c-2.39-1.64-3.44-1.3-3.44-1.3-.68 1.72-.26 2.99-.13 3.31C.49 6.21 0 7.33 0 8.69 0 13.84 3.33 15 7.98 15S16 13.84 16 8.69c0-1.36-.49-2.48-1.3-3.35zM8 14.02c-3.3 0-5.98-.15-5.98-3.35 0-.76.38-1.48 1.02-2.07 1.07-.98 2.9-.46 4.96-.46 2.07 0 3.88-.52 4.96.46.65.59 1.02 1.3 1.02 2.07 0 3.19-2.68 3.35-5.98 3.35zM5.49 9.01c-.66 0-1.2.8-1.2 1.78s.54 1.79 1.2 1.79c.66 0 1.2-.8 1.2-1.79s-.54-1.78-1.2-1.78zm5.02 0c-.66 0-1.2.79-1.2 1.78s.54 1.79 1.2 1.79c.66 0 1.2-.8 1.2-1.79s-.53-1.78-1.2-1.78z'/></svg>"
				},
				"issues": {
					url: "https://github.com/issues",
					tooltip: "Issues",
					hotkey: "g i",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 14 16' width='14'><path d='M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z'></path></svg>"
				},
				"marketplace": {
					url: "https://github.com/marketplace",
					tooltip: "Marketplace",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 16 16' width='16'><path d='M0 0v16h7.5v-1H1V1h10.5v.5h1V0zm3 3v1h8.8l2.5 2.5-.7.6.8.8 1.3-1.4L12.2 3zm1.4 2.1l-.8.8 2 2 .8-.8zm4.5 0L8 6l2 2L11 7zM12 9c-1.1 0-2 .4-2.6 1.1-.6.7-.9 1.5-.9 2.4A3.4 3.4 0 0 0 12 16c1.1 0 2-.4 2.6-1.1.6-.7.9-1.5.9-2.4A3.4 3.4 0 0 0 12 9zm0 1c.9 0 1.5.3 1.9.8.4.4.6 1 .6 1.7 0 .6-.2 1.3-.6 1.7-.4.5-1 .8-1.9.8-.9 0-1.5-.3-1.9-.8-.4-.4-.6-1-.6-1.7 0-.6.2-1.3.6-1.7.4-.5 1-.8 1.9-.8zm-.9 1.2v2h2v-1h-1v-1z'/></svg>"
				},
				"menu": {
					url: panelHash,
					tooltip: "Open Custom Navigation Settings",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 14 16' width='14'><path d='M8.79 15H6.553l-.7-1.91-.608-.247-1.835.905-1.585-1.556.892-1.83-.25-.595L.5 9.127V6.933l1.944-.676.25-.597-.922-1.802L3.358 2.3l1.865.876.624-.248.638-1.93H8.73l.697 1.91.61.246 1.838-.905 1.58 1.555-1.114 2.317-2.714.65-.203-.24c-.444-.524-1.098-.824-1.794-.824C6.34 5.708 5.294 6.736 5.294 8c0 1.264 1.047 2.292 2.334 2.292.6 0 1.17-.224 1.604-.63l.18-.165 2.93.4 1.156 2.24-1.58 1.564-1.868-.88-.625.25L8.79 15zm-1.52-1h.78l.556-1.68 1.48-.592 1.62.765.553-.547-.583-1.13-1.93-.264c-.597.48-1.34.74-2.118.74-1.85 0-3.354-1.477-3.354-3.292 0-1.815 1.503-3.292 3.353-3.292.89 0 1.73.342 2.356.95l1.643-.394.6-1.25-.555-.546-1.598.786-1.455-.592L8.014 2h-.79L6.67 3.68l-1.48.59-1.622-.762-.556.546.802 1.566-.603 1.432-1.692.59v.763l1.71.558.603 1.43-.775 1.593.556.546 1.596-.788 1.456.593L7.27 14z'/></svg>"
				},
				"pr": {
					url: "https://github.com/pulls",
					tooltip: "Pull Requests",
					hotkey: "g p",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 12 16' width='12'><path d='M11 11.28V5c-.03-.78-.34-1.47-.94-2.06C9.46 2.35 8.78 2.03 8 2H7V0L4 3l3 3V4h1c.27.02.48.11.69.31.21.2.3.42.31.69v6.28A1.993 1.993 0 0 0 10 15a1.993 1.993 0 0 0 1-3.72zm-1 2.92c-.66 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2zM4 3c0-1.11-.89-2-2-2a1.993 1.993 0 0 0-1 3.72v6.56A1.993 1.993 0 0 0 2 15a1.993 1.993 0 0 0 1-3.72V4.72c.59-.34 1-.98 1-1.72zm-.8 10c0 .66-.55 1.2-1.2 1.2-.65 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2zM2 4.2C1.34 4.2.8 3.65.8 3c0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2z'></path></svg>"
				},
				"profile": {
					url: "https://github.com/${me}",
					tooltip: "Profile",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 8 16' width='8'><path d='M7 6H1c-.55 0-1 .45-1 1v5h2v3c0 .55.45 1 1 1h2c.55 0 1-.45 1-1v-3h2V7c0-.55-.45-1-1-1zm0 5H6V9H5v6H3V9H2v2H1V7h6v4zm0-8c0-1.66-1.34-3-3-3S1 1.34 1 3s1.34 3 3 3 3-1.34 3-3zM4 5c-1.11 0-2-.89-2-2 0-1.11.89-2 2-2 1.11 0 2 .89 2 2 0 1.11-.89 2-2 2z' fill-rule='evenodd'/></svg>"
				},
				"settings": {
					url: "https://github.com/settings/profile",
					tooltip: "Settings",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 14 16' width='14'><path d='M14 8.77v-1.6l-1.94-.64-.45-1.09.88-1.84-1.13-1.13-1.81.91-1.09-.45-.69-1.92h-1.6l-.63 1.94-1.11.45-1.84-.88-1.13 1.13.91 1.81-.45 1.09L0 7.23v1.59l1.94.64.45 1.09-.88 1.84 1.13 1.13 1.81-.91 1.09.45.69 1.92h1.59l.63-1.94 1.11-.45 1.84.88 1.13-1.13-.92-1.81.47-1.09L14 8.75v.02zM7 11c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3z'></path></svg>"
				},
				"stars": {
					url: "https://github.com/stars",
					tooltip: "Stars",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 14 16' width='14'><path d='M14 6l-4.9-.64L7 1 4.9 5.36 0 6l3.6 3.26L2.67 14 7 11.67 11.33 14l-.93-4.74z'></path></svg>"
				},
				"watching": {
					url: "https://github.com/watching",
					tooltip: "Watching",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 16 16' width='16'><path d='M8.06 2C3 2 0 8 0 8s3 6 8.06 6C13 14 16 8 16 8s-3-6-7.94-6zM8 12c-2.2 0-4-1.78-4-4 0-2.2 1.8-4 4-4 2.22 0 4 1.8 4 4 0 2.22-1.78 4-4 4zm2-4c0 1.11-.89 2-2 2-1.11 0-2-.89-2-2 0-1.11.89-2 2-2 1.11 0 2 .89 2 2z'></path></svg>"
				},
				"zenhub": {
					url: "#todo",
					tooltip: "ZenHub ToDo",
					hotkey: "",
					content: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 50 50' width='16'><path d='M29.17 45.988L13.82 21.218h10.56l-1.1-17.206 13.498 24.77h-9.514'/></svg>"
				}
			}
		},
		icons = {
			add: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='14' viewBox='0 0 12 16' width='12'><path d='M12 9H7v5H5V9H0V7h5V2h2v5h5'/></svg>",
			close: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' width='9' height='9' viewBox='0 0 9 9'><path d='M9 1L5.4 4.4 9 8 8 9 4.6 5.4 1 9 0 8l3.6-3.5L0 1l1-1 3.5 3.6L8 0l1 1z'></path></svg>",
			info: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' height='16' width='14' viewBox='0 0 16 14'><path d='M6 10h2v2H6V10z m4-3.5c0 2.14-2 2.5-2 2.5H6c0-0.55 0.45-1 1-1h0.5c0.28 0 0.5-0.22 0.5-0.5v-1c0-0.28-0.22-0.5-0.5-0.5h-1c-0.28 0-0.5 0.22-0.5 0.5v0.5H4c0-1.5 1.5-3 3-3s3 1 3 2.5zM7 2.3c3.14 0 5.7 2.56 5.7 5.7S10.14 13.7 7 13.7 1.3 11.14 1.3 8s2.56-5.7 5.7-5.7m0-1.3C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7S10.86 1 7 1z'/></svg>",
			separator: "<svg class='octicon' xmlns='http://www.w3.org/2000/svg' aria-hidden='true' height='16' viewBox='0 0 12 16' width='12'><path d='M7 16H5V0h2'/></svg>"
		};

	let drake,
		editMode = false,
		panelHashTriggered = false,
		// remember scrollTop when settings panel opens (if using sticky nav header
		// style)
		scrollTop = 0,
		settings = GM_getValue("custom-links", defaults);

	function addPanel() {
		GM_addStyle(`
			/* Use border right when a vertical bar is added */
			.HeaderNavlink.ghcn-separator { border-right:#777 1px solid;
				padding:4px 0; }
			/* settings panel */
			#ghcn-overlay { position:fixed; top:50px; left:0; right:0; bottom:0;
				z-index:45; background:rgba(0,0,0,.5); display:none; }
			#ghcn-menu { cursor:pointer; }
			.ghcn-close, .ghcn-code { float:right; cursor:pointer; font-size:.8em;
				margin-left:3px; padding:0 6px 2px 6px; }
			.ghcn-close .octicon { vertical-align:middle; fill:currentColor; }
			#ghcn-settings-inner { position:fixed; left:50%; top:60px; z-index:50;
				width:30rem; transform:translate(-50%,0); box-shadow:0 .5rem 1rem #111;
				color:#c0c0c0; display:none; }
			#ghcn-settings-inner input { width:85%; float:right; border-style:solid;
				border-width:1px; max-height:35px; }
			.ghcn-settings-wrapper div { line-height:38px; }
			#ghcn-nav-items { min-height: 38px; }
			#ghcn-nav-items .HeaderNavitem { margin-bottom:4px; }
			.ghcn-settings-wrapper hr { margin: 10px 0; }
			.ghcn-footer { margin-top:4px; border-top:#555 solid 1px; }
			li[data-ghcn] a { min-width:25px; text-align: center; }
			.HeaderNavlink { height:28px; padding:2px 5px; }
			ul.HeaderNav .HeaderNavlink svg,
				ul.HeaderNav .HeaderNavlink img,
				#ghcn-nav-items .HeaderNavlink svg,
				#ghcn-nav-items .HeaderNavlink img, .gu-mirror svg, .gu-mirror img {
				max-height:16px; fill:currentColor; vertical-align:middle;
				overflow:visible; }
			/* override white text when settings panel is open*/
			body.ghcn-settings-open #ghcn-nav-items .text-emphasized {
				color: #24292e; }
			/* panel open */
			body.ghcn-settings-open {
				overflow:hidden !important; /* !important overrides wiki style */ }
			/* hide other header elements while settings is open (overflow issues) */
			body.ghcn-settings-open .header-search,
				body.ghcn-settings-open #user-links.d-flex,
				body.ghcn-settings-open .header-logo-invertocat,
				body.ghcn-settings-open .header-logo-wordmark,
				.gist-header .octicon-logo-github, /* hide GitHub logo on Gist page */
				.zh-todo-link { display:none !important; }
			body.ghcn-settings-open ul.HeaderNav { width:100%; }
			body.ghcn-settings-open .HeaderNavlink > * { pointer-events:none; }
			body.ghcn-settings-open #ghcn-overlay,
			body.ghcn-settings-open #ghcn-settings-inner,
			#ghcn-nav-items { display:block; }
			body.ghcn-settings-open ul.HeaderNav .HeaderNavitem,
			.ghcn-settings-wrapper .HeaderNavitem { cursor:move;
				border:#555 1px solid; border-radius:4px; margin-left: 2px;
				display:inline-block; }
			body.ghcn-settings-open .HeaderNavlink,
				.ghcn-settings-wrapper .HeaderNavlink { min-height:auto;
				min-width:16px; padding-top:1px; }
			body.ghcn-settings-open .Header .HeaderNavlink.form-control {
				background-color: transparent; border: 1px solid #444; }
			/* JSON code block */
			.ghcn-json-code { display:none; font-family:Menlo, Inconsolata,
				"Droid Mono", monospace; font-size:1em; }
			.ghcn-visible { display:block; position:absolute; top:38px; bottom:0;
				left:2px; right:2px; z-index:1;
				width:476px; max-width:476px; }
			/* Dragula.min.css v3.7.2 (Microsoft definitions removed) */
			.gu-mirror { position:fixed !important; margin:0 !important;
				z-index:9999 !important; opacity:.8; list-style:none; }
			.gu-hide { display:none !important; }
			.gu-unselectable { -webkit-user-select:none !important;
				-moz-user-select:none !important; user-select:none !important; }
			.gu-transit { opacity:.2; }
		`);

		make({
			el: "div",
			appendTo: "body",
			attr: {
				id: "ghcn-settings"
			},
			html: `
				<div id="ghcn-overlay"></div>
				<div id="ghcn-settings-inner" class="boxed-group">
					<h3>GitHub Custom Navigation Settings
						<button type="button" class="ghcn-close btn btn-sm">${icons.close}</button>
						<button type="button" class="ghcn-code btn btn-sm tooltipped tooltipped-n" aria-label="Toggle JSON data view">{ }</button>
					</h3>
					<div class="ghcn-settings-wrapper boxed-group-inner">
						<ul id="ghcn-nav-items" class="BtnGroup HeaderNav"></ul>
						<hr>
						<form>
							<p>Click an link above to edit its properties
								<a href="https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-custom-navigation" class="tooltipped tooltipped-e" aria-label="Click to learn about the properties below">${icons.info}</a>
							</p>
							<div>URL
								<span class="tooltipped tooltipped-e" aria-label="Enter a full URL, or hash">${icons.info}</span>
								<input class="form-control ghcn-url" type="text"/>
							</div>
							<div>Tooltip<input class="form-control ghcn-tooltip" type="text"/></div>
							<div>Hotkey
								<a href="https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-custom-navigation#hotkey" class="tooltipped tooltipped-e ghcn-hotkey-link" aria-label="Click to learn about hotkeys">${icons.info}</a>
								<input class="form-control ghcn-hotkey" type="text"/>
							</div>
							<div>Content
								<span class="tooltipped tooltipped-e" aria-label="Include text and/or HTML (&lt;svg&gt; or &lt;img&gt;)">${icons.info}</span>
								<input class="form-control ghcn-content" type="text"/>
							</div>
						</form>
						<textarea class="ghcn-json-code"></textarea>
						<div class="ghcn-footer">
							<span class="btn btn-sm ghcn-add">${icons.add} New Link</span>
							<span class="btn btn-sm ghcn-destroy btn-danger tooltipped tooltipped-n" aria-label="Completely remove selected link">Destroy</span>
							<span class="btn btn-sm ghcn-reset btn-danger tooltipped tooltipped-n tooltipped-multiline" aria-label="Reset to default
(Removes all custom entries!)">Reset</span>
							<span class="btn btn-sm ghcn-restore tooltipped tooltipped-n" aria-label="Restore missing default entries">Restore</span>
						</div>
					</div>
				</div>`
		});
	}

	function updatePanel() {
		let indx, item, inNav, inSettings,
			panelStr = "#ghcn-nav-items",
			panel = $(panelStr),
			setItems = settings[getLocation()],
			keys = Object.keys(settings.items),
			len = keys.length;
		for (indx = 0; indx < len; indx++) {
			item = keys[indx];
			inNav = setItems.indexOf(item) > -1;
			inSettings = $(panelStr + ` .HeaderNavitem[data-ghcn="${item}"]`);
			// customize adds stuff to main nav
			if (inNav && inSettings) {
				panel.removeChild(inSettings);
			} else if (!inNav && !inSettings) {
				addToMenu(item, panelStr);
			}
		}
		if (!$(panelStr + " .HeaderNavitem[data-ghcn='separator']")) {
			addToMenu("separator", panelStr);
		}
		selectItem();
	}

	function openPanel() {
		scrollTop = document.documentElement.scrollTop;
		window.scrollTo(0, 0);
		$("body").classList.add("ghcn-settings-open");
		editMode = true;
		customize();
		$(".modal-backdrop").click();
		$(".ghcn-json-code").classList.remove("ghcn-visible");
	}

	function openPanelOnHash() {
		if (!panelHashTriggered && window.location.hash === panelHash) {
			panelHashTriggered = true;
			openPanel();
			// immediately remove the hash because I noticed issues where the "#" was
			// removed; and upon reload, a 404 page is shown because
			// "https://github.com/github-custom-navigation-settings" does not exist
			history.pushState("", document.title, window.location.pathname);
			panelHashTriggered = false;
		}
	}

	function closePanel() {
		if (editMode) {
			window.scrollTo(0, scrollTop);
			$("body").classList.remove("ghcn-settings-open");
			editMode = false;
			customize();
			$(".ghcn-json-code").classList.remove("ghcn-visible");
		}
	}

	function getLocation() {
		// used by "settings" object
		return window.location.hostname === "gist.github.com" ? "gists" : "github";
	}

	// continually destroying & reapplying Dragula sometimes ignores elements;
	// so just leave it always applied
	function addDragula() {
		let topNav = $(".HeaderNav");
		drake = dragula($$(".HeaderNav, #ghcn-nav-items"), {
			invalid: () => {
				return !editMode;
			}
		});
		drake.on("drop", () => {
			let indx, link,
				temp = [],
				list = topNav.childNodes,
				len = list.length;
			for (indx = 0; indx < len; indx++) {
				link = list[indx].getAttribute("data-ghcn");
				if (link) {
					temp[temp.length] = link;
				}
			}
			settings[getLocation()] = temp;
			GM_setValue("custom-links", settings);
			updatePanel();

		});
	}

	// Clicked item; show selection
	function selectItem() {
		// highlight current link
		let temp = $$(".HeaderNavlink.focus");
		removeClass(temp, "focus");
		temp = $$(".HeaderNavitem[data-ghcn='" + (settings.currentLink || "") +
			"'] .HeaderNavlink");
		if (temp[0]) {
			addClass(temp, "focus");
			updateLink(temp[0].parentNode);
		}
	}

	// New Link button pressed
	function createLink() {
		let name = findUniqueId("custom");
		settings.items[name] = {
			url: "",
			tooltip: "",
			hotkey: "",
			content: "*"
		};
		addToMenu(name, "#ghcn-nav-items");
		settings.currentLink = name;
		selectItem();
	}

	// append named list item to menu
	function addToMenu(name, target) {
		let html,
			item = settings.items[name] || {},
			url = (item.url || "").replace(/\$\{me\}/g, user),
			linkClass = "text-emphasized HeaderNavlink " +
				(editMode ? "" : "js-selected-navigation-item");
		// only show tooltip if defined
		if (item.tooltip) {
			linkClass += " tooltipped tooltipped-s";
			if (/(&#10;|&#xA;)/g.test(item.tooltip)) {
				linkClass += " tooltipped-multiline";
			}
		}
		if (name === "separator") {
			html = editMode
				// *** Separator (icon in editMode; zero-width-space when not)
				? `<span class="${linkClass} tooltipped tooltipped-s" aria-label="Menu separator">${icons.separator}</span>`
				: `<span class="HeaderNavlink ghcn-separator linkable-line-number">&#8203;</span>`;
		} else {
			html = editMode ?
				`<span class="${linkClass}" aria-label="${item.tooltip}">${item.content}</span>` :
				// GitHub might get upset, but we're not going to bother with analytics;
				// not including "data-ga-click" nor "data-selected-links" attributes
				`<a href="${url}" class="${linkClass}" aria-label="${item.tooltip}" data-hotkey="${item.hotkey}">
					${item.content}
				</a>`;
		}
		make({
			el: "li",
			appendTo: target,
			attr: {
				"data-ghcn": name
			},
			cl4ss: "HeaderNavitem",
			html: html
		});
	}

	// Destroy button pressed
	function destroyLink(item) {
		if (item) {
			delete settings.items[item];
			GM_setValue("custom-links", settings);
			let el,
				indx = settings.github.indexOf(item);
			if (indx >= 0) {
				settings.github.splice(indx, 1);
			}
			indx = settings.gists.indexOf(item);
			if (indx >= 0) {
				settings.gists.splice(indx, 1);
			}
			el = $(`.HeaderNavitem[data-ghcn="${item}"]`);
			if (el) {
				el.parentNode.removeChild(el);
			}
			if ((settings.currentLink || "") === item) {
				settings.currentLink = "";
			}
			updateLink();
		}
	}

	// Reset button pressed or new JSON added
	function resetLinks(newSettings) {
		if (newSettings) {
			settings = newSettings;
		} else {
			// quick n'dirty deep merge
			let str = JSON.stringify(defaults);
			settings = JSON.parse(str);
		}
		GM_setValue("custom-links", settings);
		// remove extra items individually; dragula doesn't seem to like it when we
		// use innerHTML = ""
		let item,
			els = $$(".HeaderNavitem"),
			indx = els.length;
		while (indx--) {
			item = els[indx].getAttribute("data-ghcn");
			if (item !== "separator" && !settings.items.hasOwnProperty(item)) {
				destroyLink(item);
			}
		}
		customize();
	}

	function restoreLinks() {
		Object.assign(settings.items, defaults.items);
		GM_setValue("custom-links", settings);
		updatePanel();
	}

	// Clicked item; update input values
	function updateLink(el) {
		let item = el && el.getAttribute("data-ghcn") || "",
			link = settings.items[item] || {};
		settings.currentLink = item;
		$(".ghcn-url").value = link.url || "";
		$(".ghcn-tooltip").value = link.tooltip || "";
		$(".ghcn-hotkey").value = link.hotkey || "";
		$(".ghcn-content").value = link.content || "";

		// "separator" shouldn't show options
		$(".ghcn-settings-wrapper form").style.visibility = item === "separator" ?
			"hidden" :
			"visible";
	}

	// save changes on-the-fly
	function saveLink() {
		let name = settings.currentLink || "",
			item = $(`.HeaderNavitem[data-ghcn="${name}"] .HeaderNavlink`);
		if (name) {
			settings.items[name] = {
				url: $(".ghcn-url").value,
				tooltip: $(".ghcn-tooltip").value,
				hotkey: $(".ghcn-hotkey").value,
				content: $(".ghcn-content").value
			};
			GM_setValue("custom-links", settings);
			// update item (should be unique)
			if (item) {
				// "\n" is the only thing that works as a carriage return for
				// javascript's setAttribute; see
				// http://wowmotty.blogspot.com/2014/04/methods-to-add-multi-line-css-content.html
				item.setAttribute(
					"aria-label",
					settings.items[name].tooltip.replace(/(&#10;|&#xA;)/g, "\n")
				);
				item.innerHTML = settings.items[name].content;
			}
		}
	}

	function addJSON() {
		$(".ghcn-json-code").value = JSON.stringify(settings, null, 2);
	}

	function processJSON() {
		let val,
			txt = $(".ghcn-json-code").value;
		try {
			val = JSON.parse(txt);
		} catch (err) {
			console.error("GitHub Custom Navigation: Invalid JSON!");
		}
		return val;
	}

	function addBindings() {
		// Create a menu entry
		let el,
			menu = make({
				el: "a",
				cl4ss: "dropdown-item",
				html: "Custom Nav Settings",
				attr: {
					id: "ghcn-menu"
				}
			});

		el = $$(`
			.Header .dropdown-item[href='/settings/profile'],
			.Header .dropdown-item[data-ga-click*='go to profile']`
		);
		// get last found item - gists only have the "go to profile" item; GitHub
		// has both
		el = el[el.length - 1];
		if (el) {
			// insert after
			el.parentNode.insertBefore(menu, el.nextSibling);
			on($("#ghcn-menu"), "click", openPanel);
		}

		on(window, "hashchange", openPanelOnHash);
		on($("#ghcn-overlay"), "click", event => {
			// ignore bubbled up events
			if (event.target.id === "ghcn-overlay") {
				closePanel();
			}
		});
		on($("body"), "keyup", event => {
			// using F2 key for testing
			if (editMode && event.keyCode === 27) {
				closePanel();
			}
		});
		on($("body"), "click", event => {
			const target = event.target;
			if (editMode && target.classList.contains("HeaderNavlink")) {
				// HeaderNavlink is a child of HeaderNavitem, but is the same size
				settings.currentLink = target.parentNode.getAttribute("data-ghcn");
				selectItem();
			}
		});
		on($$(".ghcn-settings-wrapper input"), "input change", saveLink);
		on($(".ghcn-add"), "click", createLink);
		on($(".ghcn-destroy"), "click", () => destroyLink(settings.currentLink));
		on($(".ghcn-reset"), "click", resetLinks);
		on($(".ghcn-restore"), "click", restoreLinks);
		// close panel when hotkey link is clicked or the page scrolls on the
		// documentation wiki
		on($$(".ghcn-close, .ghcn-hotkey-link"), "click", closePanel);

		// Code
		on($(".ghcn-code"), "click", () => {
			// open JSON code textarea
			$(".ghcn-json-code").classList.toggle("ghcn-visible");
			addJSON();
		});
		// close JSON code textarea
		on($(".ghcn-json-code"), "focus", function() {
			this.select();
		});
		on($(".ghcn-json-code"), "paste", () => {
			setTimeout(() => {
				checkJSON(processJSON());
			}, 200);
		});

	}

	function checkJSON(val, init) {
		let hasGitHub = false,
			hasGists = false,
			hasItems = false;
		if (val) {
			hasGitHub = val.hasOwnProperty("github");
			hasGists = val.hasOwnProperty("gists");
			hasItems = val.hasOwnProperty("items");
			// simple validation
			if (hasGitHub && hasGists && hasItems) {
				if (!init) {
					resetLinks(val);
					$(".ghcn-json-code").classList.remove("ghcn-visible");
					selectItem();
				}
				return true;
			}
		}
		let msg = [];
		if (!hasGitHub) {
			msg.push(`"github"`);
		}
		if (!hasGists) {
			msg.push(`"gists"`);
		}
		if (!hasItems) {
			msg.push(`"items"`);
		}
		msg = msg.length ? "JSON is missing " + msg.join(" & ") : "Invalid JSON";
		console.error("GitHub Custom Navigation: " + msg, val);
		return false;
	}

	// add new link; needs a unique ID
	function findUniqueId(prefix) {
		let indx = 0,
			id = prefix + indx;
		if (settings.items[id]) {
			while (settings.items[id]) {
				id = prefix + indx++;
			}
		}
		return id;
	}

	// Main process - adds links to header navigation
	function customize() {
		let nav = $(".Header ul[role='navigation']");
		if (nav) {
			nav.classList.add("HeaderNav");
			let indx, els,
				navStr = ".HeaderNav",
				setItems = settings[getLocation()],
				len = setItems.length;
			if (!len) {
				return;
			}

			els = nav.childNodes;
			indx = els.length;
			while (indx--) {
				nav.removeChild(els[indx]);
			}

			for (indx = 0; indx < len; indx++) {
				addToMenu(setItems[indx], navStr);
			}
			// make sure all svg's have an "octicon" class name
			addClass($$(navStr + " svg"), "octicon");

			if (editMode) {
				updatePanel();
			}
		}
	}

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

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

	function addClass(els, name) {
		let indx = els.length;
		while (indx--) {
			els[indx].classList.add(name);
		}
	}

	function removeClass(els, name) {
		let indx = els.length;
		while (indx--) {
			els[indx].classList.remove(name);
		}
	}

	function on(els, name, callback) {
		els = Array.isArray(els) ? els : [els];
		let events = name.split(/\s+/);
		els.forEach(el => {
			events.forEach(ev => {
				el.addEventListener(ev, callback);
			});
		});
	}

	function make(obj) {
		let key,
			el = document.createElement(obj.el);
		if (obj.cl4ss) {
			el.className = obj.cl4ss;
		}
		if (obj.html) {
			el.innerHTML = obj.html;
		}
		if (obj.attr) {
			for (key in obj.attr) {
				if (obj.attr.hasOwnProperty(key)) {
					el.setAttribute(key, obj.attr[key]);
				}
			}
		}
		if (obj.appendTo) {
			$(obj.appendTo).appendChild(el);
		}
		return el;
	}

	let isValid = checkJSON(settings, "init");
	if (!isValid) {
		resetLinks();
	}
	customize();
	addPanel();
	addBindings();
	addDragula();
	openPanelOnHash();

})();