☰

GitHub Custom Navigation

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

当前为 2016-06-23 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          GitHub Custom Navigation
  3. // @version       1.0.0
  4. // @description   A userscript that allows you to customize GitHub's main navigation bar
  5. // @license       https://creativecommons.org/licenses/by-sa/4.0/
  6. // @namespace     http://github.com/Mottie
  7. // @include       https://github.com/*
  8. // @include       https://gist.github.com/*
  9. // @grant         GM_addStyle
  10. // @grant         GM_getValue
  11. // @grant         GM_setValue
  12. // @require       https://cdnjs.cloudflare.com/ajax/libs/dragula/3.7.1/dragula.js
  13. // @run-at        document-end
  14. // @author        Rob Garrison
  15. // ==/UserScript==
  16. /* global GM_addStyle, GM_getValue, GM_setValue, dragula */
  17. /* jshint esnext:true, unused:true */
  18. (function() {
  19.   "use strict";
  20.  
  21.   let drake,
  22.   editMode = false,
  23.   // remember scrollTop when settings panel opens (if using sticky nav header style)
  24.   scrollTop = 0,
  25.   // when the bar gets wider than this number, adjust the width of the search input
  26.   adjustWidth = 460,
  27.   // when search input width is adjusted, this is the minimum width
  28.   minSearchInputWidth = 200,
  29.  
  30.   // open menu via hash
  31.   panelHash = "#github-custom-nav-settings",
  32.   panelHashTriggered = false,
  33.  
  34.   defaults = {
  35.     github: ["pr", "issues", "gist", "separator", "stars", "watching", "separator", "profile", "blog", "menu"],
  36.     gists: ["gistall", "giststars", "github", "separator", "pr", "issues", "stars", "watching", "separator", "profile", "blog", "menu"],
  37.  
  38.     currentLink: "pr",
  39.     // using full length url so the links work from any subdomain (e.g. gist pages)
  40.     items: {
  41.       "blog": {
  42.         url: "https://github.com/blog",
  43.         tooltip: "Blog",
  44.         hotkey: "",
  45.         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>"
  46.       },
  47.       "explore": {
  48.         url: "https://github.com/explore",
  49.         tooltip: "Explore",
  50.         hotkey: "",
  51.         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='M10 1c-.17 0-.36.05-.52.14C8.04 2.02 4.5 4.58 3 5c-1.38 0-3 .67-3 2.5S1.63 10 3 10c.3.08.64.23 1 .41V15h2v-3.45c1.34.86 2.69 1.83 3.48 2.31.16.09.34.14.52.14.52 0 1-.42 1-1V2c0-.58-.48-1-1-1zm0 12c-.38-.23-.89-.58-1.5-1-.16-.11-.33-.22-.5-.34V3.31c.16-.11.31-.2.47-.31.61-.41 1.16-.77 1.53-1v11zm2-6h4v1h-4V7zm0 2l4 2v1l-4-2V9zm4-6v1l-4 2V5l4-2z'></path></svg>"
  52.       },
  53.       "gist": {
  54.         url: "https://gist.github.com/",
  55.         tooltip: "Gist",
  56.         hotkey: "",
  57.         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>"
  58.       },
  59.       "gistall": {
  60.         url: "https://gist.github.com/discover",
  61.         tooltip: "Discover Gists",
  62.         hotkey: "",
  63.         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>"
  64.       },
  65.       "giststars": {
  66.         url: "https://gist.github.com/${me}/starred",
  67.         tooltip: "Starred Gists",
  68.         hotkey: "",
  69.         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>"
  70.       },
  71.       "github": {
  72.         url: "https://github.com",
  73.         tooltip: "GitHub",
  74.         hotkey: "",
  75.         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>"
  76.       },
  77.       "integrations": {
  78.         url: "https://github.com/integrations",
  79.         tooltip: "Integrations",
  80.         hotkey: "",
  81.         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='M3 6c-.55 0-1 .45-1 1v2c0 .55.45 1 1 1h8c.55 0 1-.45 1-1V7c0-.55-.45-1-1-1H3zm8 1.75L9.75 9h-1.5L7 7.75 5.75 9h-1.5L3 7.75V7h.75L5 8.25 6.25 7h1.5L9 8.25 10.25 7H11v.75zM5 11h4v1H5v-1zm2-9C3.14 2 0 4.91 0 8.5V13c0 .55.45 1 1 1h12c.55 0 1-.45 1-1V8.5C14 4.91 10.86 2 7 2zm6 11H1V8.5c0-3.09 2.64-5.59 6-5.59s6 2.5 6 5.59V13z'></path></svg>"
  82.       },
  83.       "issues": {
  84.         url: "https://github.com/issues",
  85.         tooltip: "Issues",
  86.         hotkey: "g i",
  87.         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>"
  88.       },
  89.       "menu": {
  90.         url: panelHash,
  91.         tooltip: "Open Custom Navigation Settings",
  92.         hotkey: "",
  93.         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>"
  94.       },
  95.       "pr": {
  96.         url: "https://github.com/pulls",
  97.         tooltip: "Pull Requests",
  98.         hotkey: "g p",
  99.         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>"
  100.       },
  101.       "profile": {
  102.         url: "https://github.com/${me}",
  103.         tooltip: "Profile",
  104.         hotkey: "",
  105.         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>"
  106.       },
  107.       "settings": {
  108.         url: "https://github.com/settings/profile",
  109.         tooltip: "Settings",
  110.         hotkey: "",
  111.         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>"
  112.       },
  113.       "stars": {
  114.         url: "https://github.com/stars",
  115.         tooltip: "Stars",
  116.         hotkey: "",
  117.         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>"
  118.       },
  119.       "trending": {
  120.         url: "https://github.com/trending",
  121.         tooltip: "Trending",
  122.         hotkey: "",
  123.         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='M5.05.31c.81 2.17.41 3.38-.52 4.31C3.55 5.67 1.98 6.45.9 7.98c-1.45 2.05-1.7 6.53 3.53 7.7-2.2-1.16-2.67-4.52-.3-6.61-.61 2.03.53 3.33 1.94 2.86 1.39-.47 2.3.53 2.27 1.67-.02.78-.31 1.44-1.13 1.81 3.42-.59 4.78-3.42 4.78-5.56 0-2.84-2.53-3.22-1.25-5.61-1.52.13-2.03 1.13-1.89 2.75.09 1.08-1.02 1.8-1.86 1.33-.67-.41-.66-1.19-.06-1.78C8.18 5.31 8.68 2.45 5.05.32L5.03.3l.02.01z'></path></svg>"
  124.       },
  125.       "watching": {
  126.         url: "https://github.com/watching",
  127.         tooltip: "Watching",
  128.         hotkey: "",
  129.         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>"
  130.       },
  131.       "zenhub": {
  132.         url: "#todo",
  133.         tooltip: "ZenHub ToDo",
  134.         hotkey: "",
  135.         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>"
  136.       }
  137.     }
  138.   },
  139.  
  140.   // get user name; or empty string if not logged in
  141.   user = $("meta[name='user-login']").getAttribute("content") || "",
  142.   settings = GM_getValue("custom-links", defaults),
  143.  
  144.   icons = {
  145.     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>",
  146.     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>",
  147.     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>",
  148.     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>"
  149.   };
  150.  
  151.   function addPanel() {
  152.     GM_addStyle(`
  153.       /* Use border right when a vertical bar is added */
  154.       .header-nav-link.ghcn-separator { border-right:#e5e5e5 2px solid; padding:4px 0; }
  155.       /* settings panel */
  156.       #ghcn-overlay { position:fixed; top:50px; left:0; right:0; bottom:0; z-index:5;
  157.         background:rgba(0,0,0,.5); display:none; }
  158.       #ghcn-menu { cursor:pointer; }
  159.       .ghcn-close, .ghcn-code { float:right; cursor:pointer; font-size:.8em; margin-left:3px;
  160.         padding:0 6px 2px 6px; }
  161.       .ghcn-close .octicon { vertical-align:middle; fill:currentColor; }
  162.       #ghcn-settings-inner { position:fixed; left:50%; top:55px; z-index:10; width:30rem;
  163.         transform:translate(-50%,0); box-shadow:0 .5rem 1rem #111; color:#c0c0c0; display:none; }
  164.       #ghcn-settings-inner input { width:85%; float:right; border-style:solid; border-width:1px; }
  165.       .ghcn-settings-wrapper div { line-height:38px; }
  166.       #ghcn-nav-items { min-height: 38px; }
  167.       #ghcn-nav-items .header-nav-item { margin-bottom:4px; }
  168.       .ghcn-settings-wrapper hr { margin: 10px 0; }
  169.       .ghcn-footer { margin-top:4px; border-top:#555 solid 1px; }
  170.       .header-nav-link { height:28px; }
  171.       .header-nav-link.left svg, .header-nav-link.left img { max-height:16px; fill:currentColor; }
  172.       /* panel open */
  173.       body.ghcn-settings-open { overflow:hidden; }
  174.       /* hide other header elements while settings is open (overflow issues) */
  175.       body.ghcn-settings-open .header-search,
  176.         body.ghcn-settings-open .header-nav.right,
  177.         body.ghcn-settings-open .header-logo-invertocat,
  178.         body.ghcn-settings-open .header-logo-wordmark,
  179.         .gist-header .octicon-logo-github, /* hide GitHub logo on Gist page */
  180.         .zh-todo-link { display:none; }
  181.       body.ghcn-settings-open .header-nav.left { width:100%; }
  182.       body.ghcn-settings-open .header-nav-link > * { pointer-events:none; }
  183.       body.ghcn-settings-open #ghcn-overlay,
  184.         body.ghcn-settings-open #ghcn-settings-inner,
  185.         #ghcn-nav-items { display:block; }
  186.       body.ghcn-settings-open .header-nav.left .header-nav-item,
  187.         .ghcn-settings-wrapper .header-nav-item { cursor:move; border:#555 1px solid; border-radius:4px;
  188.         margin-left: 2px; }
  189.       body.ghcn-settings-open .header-nav-link,
  190.         .ghcn-settings-wrapper .header-nav-link { min-height:auto; min-width:16px; }
  191.       /* JSON code block */
  192.       .ghcn-json-code { display:none; font-family:Menlo, Inconsolata, "Droid Mono", monospace; font-size:1em; }
  193.       .ghcn-visible { display:block; position:absolute; top:38px; bottom:0; left:2px; right:2px; z-index:1;
  194.         width:476px; max-width:476px; }
  195.       /* Dragula.min.css v3.7.1 (Microsoft definitions removed) */
  196.       .gu-mirror { position:fixed !important; margin:0 !important; z-index:9999 !important; opacity:.8;
  197.         list-style:none; }
  198.       .gu-hide { display:none !important; }
  199.       .gu-unselectable { -webkit-user-select:none !important; -moz-user-select:none !important;
  200.         user-select:none !important; }
  201.       .gu-transit { opacity:.2; }
  202.     `);
  203.  
  204.     make({
  205.       el: "div",
  206.       appendTo: "body",
  207.       attr: { id: "ghcn-settings" },
  208.       html: `
  209.         <div id="ghcn-overlay"></div>
  210.         <div id="ghcn-settings-inner" class="boxed-group">
  211.           <h3>GitHub Custom Navigation Settings
  212.             <button type="button" class="ghcn-close btn btn-sm">${icons.close}</button>
  213.             <button type="button" class="ghcn-code btn btn-sm tooltipped tooltipped-n" aria-label="Toggle JSON data view">{ }</button>
  214.           </h3>
  215.           <div class="ghcn-settings-wrapper boxed-group-inner">
  216.             <ul id="ghcn-nav-items" class="btn-group header-nav"></ul>
  217.             <hr>
  218.             <form>
  219.               <p>Click an link above to edit its properties
  220.                 <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">${icons.info}</a>
  221.               </p>
  222.               <div>URL
  223.                 <span class="tooltipped tooltipped-e" aria-label="Enter a full URL, or hash">${icons.info}</span>
  224.                 <input class="form-control ghcn-url" type="text"/>
  225.               </div>
  226.               <div>Tooltip<input class="form-control ghcn-tooltip" type="text"/></div>
  227.               <div>Hotkey
  228.                 <a href="https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-custom-navigation#hotkey" class="tooltipped tooltipped-e" aria-label="Click to learn about hotkeys">${icons.info}</a>
  229.                 <input class="form-control ghcn-hotkey" type="text"/>
  230.               </div>
  231.               <div>Content
  232.                 <span class="tooltipped tooltipped-e" aria-label="Include text and/or HTML (&lt;svg&gt; or &lt;img&gt;)">${icons.info}</span>
  233.                 <input class="form-control ghcn-content" type="text"/>
  234.               </div>
  235.             </form>
  236.             <textarea class="ghcn-json-code"></textarea>
  237.             <div class="ghcn-footer">
  238.               <span class="btn btn-sm ghcn-add">${icons.add} New Link</span>
  239.               <span class="btn btn-sm ghcn-destroy btn-danger tooltipped tooltipped-n" aria-label="Completely remove selected link">Destroy</span>
  240.               <span class="btn btn-sm ghcn-reset tooltipped tooltipped-n" aria-label="Restore Defaults">Reset</span>
  241.             </div>
  242.           </div>
  243.         </div>`
  244.     });
  245.   }
  246.  
  247.   function updatePanel() {
  248.     let indx, item, inNav, inSettings,
  249.       panelStr = "#ghcn-nav-items",
  250.       panel = $(panelStr),
  251.       setItems = settings[getLocation()],
  252.       keys = Object.keys(settings.items),
  253.       len = keys.length;
  254.     for (indx = 0; indx < len; indx++) {
  255.       item = keys[indx];
  256.       inNav = setItems.indexOf(item) > -1;
  257.       inSettings = $(panelStr + ` .header-nav-item[data-ghcn="${item}"]`);
  258.       // customize adds stuff to main nav
  259.       if (inNav && inSettings) {
  260.         panel.removeChild(inSettings);
  261.       } else if (!inNav && !inSettings) {
  262.         addToMenu(item, panelStr);
  263.       }
  264.     }
  265.     if (!$(panelStr + " .header-nav-item[data-ghcn='separator']")) {
  266.       addToMenu("separator", panelStr);
  267.     }
  268.     selectItem();
  269.   }
  270.  
  271.   function openPanel() {
  272.     scrollTop = document.documentElement.scrollTop;
  273.     window.scrollTo(0,0);
  274.     $("body").classList.add("ghcn-settings-open");
  275.     editMode = true;
  276.     customize();
  277.     $(".modal-backdrop").click();
  278.     $(".ghcn-json-code").classList.remove("ghcn-visible");
  279.   }
  280.  
  281.   function openPanelOnHash() {
  282.     if (!panelHashTriggered && window.location.hash === panelHash) {
  283.       panelHashTriggered = true;
  284.       openPanel();
  285.       // immediately remove the hash because I noticed issues where the "#" was removed; and upon
  286.       // reload, a 404 page is shown because "https://github.com/github-custom-navigation-settings"
  287.       // does not exist
  288.       history.pushState("", document.title, window.location.pathname);
  289.       panelHashTriggered = false;
  290.     }
  291.   }
  292.  
  293.   function closePanel() {
  294.     if (editMode) {
  295.       window.scrollTo(0, scrollTop);
  296.       $("body").classList.remove("ghcn-settings-open");
  297.       editMode = false;
  298.       customize();
  299.       $(".ghcn-json-code").classList.remove("ghcn-visible");
  300.     }
  301.   }
  302.  
  303.   function getLocation() {
  304.     // used by "settings" object
  305.     return window.location.hostname === "gist.github.com" ? "gists" : "github";
  306.   }
  307.  
  308.   // continually destroying & reapplying Dragula sometimes ignores elements;
  309.   // so just leave it always applied
  310.   function addDragula() {
  311.     let topNav = $(".header-nav");
  312.     drake = dragula($$(".header-nav, #ghcn-nav-items"), {
  313.       invalid: function() {
  314.         return !editMode;
  315.       }
  316.     });
  317.     drake.on("drop", function() {
  318.       let indx, link,
  319.         temp = [],
  320.         list = topNav.childNodes,
  321.         len = list.length;
  322.       for (indx = 0; indx < len; indx++) {
  323.         link = list[indx].getAttribute("data-ghcn");
  324.         if (link) {
  325.           temp[temp.length] = link;
  326.         }
  327.       }
  328.       settings[getLocation()] = temp;
  329.       GM_setValue("custom-links", settings);
  330.       updatePanel();
  331.  
  332.     });
  333.   }
  334.  
  335.   // Clicked item; show selection
  336.   function selectItem() {
  337.     // highlight current link
  338.     let temp = $$(".header-nav-link.focus");
  339.     removeClass(temp, "focus");
  340.     temp = $$(".header-nav-item[data-ghcn='" + (settings.currentLink || "") + "'] .header-nav-link");
  341.     if (temp[0]) {
  342.       addClass(temp, "focus");
  343.       updateLink(temp[0].parentNode);
  344.     }
  345.   }
  346.  
  347.   // New Link button pressed
  348.   function createLink() {
  349.     let name = findUniqueId("custom");
  350.     settings.items[name] = { url: "", tooltip: "", hotkey: "", content: "*" };
  351.     addToMenu(name, "#ghcn-nav-items");
  352.     settings.currentLink = name;
  353.     selectItem();
  354.   }
  355.  
  356.   // append named list item to menu
  357.   function addToMenu(name, target) {
  358.     let html,
  359.       item = settings.items[name] || {},
  360.       url = (item.url || "").replace(/\$\{me\}/g, user),
  361.       linkClass = editMode ?
  362.         "header-nav-link form-control" :
  363.         "js-selected-navigation-item header-nav-link";
  364.     // only show tooltip if defined
  365.     if (item.tooltip) {
  366.       linkClass += " tooltipped tooltipped-s";
  367.       if (/(&#10;|&#xA;)/g.test(item.tooltip)) {
  368.         linkClass += " tooltipped-multiline";
  369.       }
  370.     }
  371.     if (name === "separator") {
  372.       html = editMode ?
  373.         // *** Separator (icon in editMode; zero-width-space when not)
  374.         `<span class="${linkClass} tooltipped tooltipped-s" aria-label="Menu separator">${icons.separator}</span>` :
  375.         `<span class="header-nav-link ghcn-separator linkable-line-number">&#8203;</span>`;
  376.     } else {
  377.       html = editMode ?
  378.         `<span class="${linkClass}" aria-label="${item.tooltip}">${item.content}</span>` :
  379.         // GitHub might get upset, but we're not going to bother with analytics;
  380.         // not including "data-ga-click" nor "data-selected-links" attributes
  381.         `<a href="${url}" class="${linkClass}" aria-label="${item.tooltip}" data-hotkey="${item.hotkey}">
  382.           ${item.content}
  383.         </a>`;
  384.     }
  385.     make({
  386.       el: "li",
  387.       appendTo: target,
  388.       attr: { "data-ghcn": name },
  389.       cl4ss: "header-nav-item",
  390.       html: html
  391.     });
  392.   }
  393.  
  394.   // Destroy button pressed
  395.   function destroyLink(item) {
  396.     if (item) {
  397.       delete settings.items[item];
  398.       GM_setValue("custom-links", settings);
  399.       let el,
  400.         indx = settings.github.indexOf(item);
  401.       if (indx >= 0) {
  402.         settings.github.splice(indx, 1);
  403.       }
  404.       indx = settings.gists.indexOf(item);
  405.       if (indx >= 0) {
  406.         settings.gists.splice(indx, 1);
  407.       }
  408.       el = $(`.header-nav-item[data-ghcn="${item}"]`);
  409.       el.parentNode.removeChild(el);
  410.       if ((settings.currentLink || "") === item) {
  411.         settings.currentLink = "";
  412.       }
  413.       updateLink();
  414.     }
  415.   }
  416.  
  417.   // Reset button pressed or new JSON added
  418.   function resetLinks(newSettings) {
  419.     if (newSettings) {
  420.       settings = newSettings;
  421.     } else {
  422.       // quick n'dirty deep merge
  423.       let str = JSON.stringify(defaults);
  424.       settings = JSON.parse(str);
  425.     }
  426.     GM_setValue("custom-links", settings);
  427.     // remove extra items individually; dragula doesn't seem to like it when we use innerHTML = ""
  428.     let item,
  429.       els = $$(".header-nav-item"),
  430.       indx = els.length;
  431.     while (indx--) {
  432.       item = els[indx].getAttribute("data-ghcn");
  433.       if (item !== "separator" && !settings.items.hasOwnProperty(item)) {
  434.         destroyLink(item);
  435.       }
  436.     }
  437.     customize();
  438.   }
  439.  
  440.   // Clicked item; update input values
  441.   function updateLink(el) {
  442.     let item = el && el.getAttribute("data-ghcn") || "",
  443.       link = settings.items[item] || {};
  444.     settings.currentLink = item;
  445.     $(".ghcn-url").value = link.url || "";
  446.     $(".ghcn-tooltip").value = link.tooltip || "";
  447.     $(".ghcn-hotkey").value = link.hotkey || "";
  448.     $(".ghcn-content").value = link.content || "";
  449.  
  450.     // "separator" shouldn't show options
  451.     $(".ghcn-settings-wrapper form").style.visibility = item === "separator" ? "hidden" : "visible";
  452.   }
  453.  
  454.   // save changes on-the-fly
  455.   function saveLink() {
  456.     let name = settings.currentLink || "",
  457.       item = $(`.header-nav-item[data-ghcn="${name}"] .header-nav-link`);
  458.     if (name) {
  459.       settings.items[name] = {
  460.         url     : $(".ghcn-url").value,
  461.         tooltip : $(".ghcn-tooltip").value,
  462.         hotkey  : $(".ghcn-hotkey").value,
  463.         content : $(".ghcn-content").value
  464.       };
  465.       GM_setValue("custom-links", settings);
  466.       // update item (should be unique)
  467.       if (item) {
  468.         // "\n" is the only thing that works as a carriage return for javascript's setAttribute
  469.         // See http://wowmotty.blogspot.com/2014/04/methods-to-add-multi-line-css-content.html
  470.         item.setAttribute("aria-label", settings.items[name].tooltip.replace(/(&#10;|&#xA;)/g, "\n"));
  471.         item.innerHTML = settings.items[name].content;
  472.       }
  473.     }
  474.   }
  475.  
  476.   function addJSON() {
  477.     $(".ghcn-json-code").value = JSON.stringify(settings, null, 2);
  478.   }
  479.  
  480.   function processJSON() {
  481.     var val,
  482.       txt = $(".ghcn-json-code").value;
  483.     try {
  484.       val = JSON.parse(txt);
  485.     } catch (err) {
  486.       console.error("GitHub Custom Navigation: Invalid JSON!");
  487.     }
  488.     return val;
  489.   }
  490.  
  491.   function addBindings() {
  492.     // Create a menu entry
  493.     let el,
  494.     menu = make({
  495.       el    : "a",
  496.       cl4ss : "dropdown-item",
  497.       html  : "Custom Nav Settings",
  498.       attr  : { id: "ghcn-menu" }
  499.     });
  500.  
  501.     el = $$(".header .dropdown-item[href='/settings/profile'], .header .dropdown-item[data-ga-click*='go to profile']");
  502.     // get last found item - gists only have the "go to profile" item; GitHub has both
  503.     el = el[el.length - 1];
  504.     if (el) {
  505.       // insert after
  506.       el.parentNode.insertBefore(menu, el.nextSibling);
  507.       on($("#ghcn-menu"), "click", function() {
  508.         openPanel();
  509.       });
  510.     }
  511.  
  512.     on(window, "hashchange", function() {
  513.       openPanelOnHash();
  514.     });
  515.  
  516.     on($("#ghcn-overlay"), "click", function(event) {
  517.       // ignore bubbled up events
  518.       if (event.target.id === "ghcn-overlay") {
  519.         closePanel();
  520.       }
  521.     });
  522.     on($("body"), "keyup", function(event) {
  523.       // using F2 key for testing
  524.       if (editMode && event.keyCode === 27) {
  525.         closePanel();
  526.       }
  527.     });
  528.     on($("body"), "click", function(event) {
  529.       if (editMode && event.target.classList.contains("header-nav-link")) {
  530.         // header-nav-link is a child of header-nav-item, but is the same size
  531.         settings.currentLink = event.target.parentNode.getAttribute("data-ghcn");
  532.         selectItem();
  533.       }
  534.     });
  535.     on($$(".ghcn-settings-wrapper input"), "input change", function() {
  536.       saveLink();
  537.     });
  538.     on($(".ghcn-add"), "click", function() {
  539.       createLink();
  540.     });
  541.     on($(".ghcn-destroy"), "click", function() {
  542.       destroyLink(settings.currentLink);
  543.     });
  544.     on($(".ghcn-reset"), "click", function() {
  545.       resetLinks();
  546.     });
  547.     on($(".ghcn-close"), "click", function() {
  548.       closePanel();
  549.     });
  550.  
  551.     // Code
  552.     on($(".ghcn-code"), "click", function(){
  553.       // open JSON code textarea
  554.       $(".ghcn-json-code").classList.toggle("ghcn-visible");
  555.       addJSON();
  556.     });
  557.     // close JSON code textarea
  558.     on($(".ghcn-json-code"), "focus", function() {
  559.       this.select();
  560.     });
  561.     on($(".ghcn-json-code"), "paste", function() {
  562.       setTimeout(function() {
  563.         checkJSON(processJSON());
  564.       }, 200);
  565.     });
  566.  
  567.   }
  568.  
  569.   function checkJSON(val, init) {
  570.     let hasGitHub = false,
  571.       hasGists = false,
  572.       hasItems = false;
  573.     if (val) {
  574.       hasGitHub = val.hasOwnProperty("github");
  575.       hasGists  = val.hasOwnProperty("gists");
  576.       hasItems  = val.hasOwnProperty("items");
  577.       // simple validation
  578.       if (hasGitHub && hasGists && hasItems) {
  579.         if (!init) {
  580.           resetLinks(val);
  581.           $(".ghcn-json-code").classList.remove("ghcn-visible");
  582.           selectItem();
  583.         }
  584.         return true;
  585.       }
  586.     }
  587.     let msg = [];
  588.     if (!hasGitHub) { msg.push(`"github"`); }
  589.     if (!hasGists) { msg.push(`"gists"`); }
  590.     if (!hasItems) { msg.push(`"items"`); }
  591.     msg = msg.length ? "JSON is missing " + msg.join(" & ") : "Invalid JSON";
  592.     console.error("GitHub Custom Navigation: " + msg, val);
  593.     return false;
  594.   }
  595.  
  596.   // add new link; needs a unique ID
  597.   function findUniqueId(prefix) {
  598.     let indx = 0,
  599.       id = prefix + indx;
  600.     if (settings.items[id]) {
  601.       while (settings.items[id]) {
  602.         id = prefix + indx++;
  603.       }
  604.     }
  605.     return id;
  606.   }
  607.  
  608.   // Main process - adds links to header navigation
  609.   function customize() {
  610.     let nav = $(".header-nav");
  611.     if (nav) {
  612.       let indx, els,
  613.         navStr = ".header-nav",
  614.         setItems = settings[getLocation()],
  615.         len = setItems.length;
  616.       if (!len) { return; }
  617.  
  618.       els = nav.childNodes;
  619.       indx = els.length;
  620.       while (indx--) {
  621.         nav.removeChild(els[indx]);
  622.       }
  623.  
  624.       for (indx = 0; indx < len; indx++) {
  625.         addToMenu(setItems[indx], navStr);
  626.       }
  627.       // make sure all svg's have an "octicon" class name
  628.       addClass($$(navStr + " svg"), "octicon");
  629.  
  630.       if (editMode) {
  631.         updatePanel();
  632.       } else {
  633.         // narrow the search bar when there are a bunch of links added
  634.         // add delay to allow browser to complete reflow
  635.         setTimeout(function() {
  636.           let width = nav.offsetWidth,
  637.             // don't let search bar get narrower than 200px; 360 = starting width
  638.             adjust = width > adjustWidth ?
  639.               Math.round(Math.max(minSearchInputWidth, 360 - (width - adjustWidth))) + "px" : "";
  640.           // default search width is 360px; we don't want to get narrower than 200px
  641.           $(".header-search").style.width = adjust;
  642.         }, 100);
  643.  
  644.  
  645.       }
  646.     }
  647.   }
  648.  
  649.   function $(selector, el) {
  650.     return (el || document).querySelector(selector);
  651.   }
  652.   function $$(selector, el) {
  653.     return Array.from((el || document).querySelectorAll(selector));
  654.   }
  655.   function addClass(els, name) {
  656.     let indx = els.length;
  657.     while (indx--) {
  658.       els[indx].classList.add(name);
  659.     }
  660.   }
  661.   function removeClass(els, name) {
  662.     let indx = els.length;
  663.     while (indx--) {
  664.       els[indx].classList.remove(name);
  665.     }
  666.   }
  667.   function on(els, name, callback) {
  668.     els = Array.isArray(els) ? els : [els];
  669.     let events = name.split(/\s+/);
  670.     els.forEach(function(el) {
  671.       events.forEach(function(ev) {
  672.         el.addEventListener(ev, callback);
  673.       });
  674.     });
  675.   }
  676.   function make(obj) {
  677.     let key,
  678.       el = document.createElement(obj.el);
  679.     if (obj.cl4ss) { el.className = obj.cl4ss; }
  680.     if (obj.html) { el.innerHTML = obj.html; }
  681.     if (obj.attr) {
  682.       for (key in obj.attr) {
  683.         if (obj.attr.hasOwnProperty(key)) {
  684.           el.setAttribute(key, obj.attr[key]);
  685.         }
  686.       }
  687.     }
  688.     if (obj.appendTo) {
  689.       $(obj.appendTo).appendChild(el);
  690.     }
  691.     return el;
  692.   }
  693.  
  694.   let isValid = checkJSON(settings, 'init');
  695.   if (!isValid) {
  696.     resetLinks();
  697.   }
  698.   customize();
  699.   addPanel();
  700.   addBindings();
  701.   addDragula();
  702.   openPanelOnHash();
  703.  
  704. })();