☰

Open links in current tab

Open links in current tab regardless of _target or site's preferences. Ctrl-click: background tab, Ctrl-Shift-click: foreground tab, Shift-click: new window

当前为 2023-08-30 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          Open links in current tab
  3. // @author        wOxxOm
  4. // @description   Open links in current tab regardless of _target or site's preferences. Ctrl-click: background tab, Ctrl-Shift-click: foreground tab, Shift-click: new window
  5. // @namespace     http://target._blank.is.retarded
  6. // @version       2.2.9
  7. // @include       *
  8. // @run-at        document-start
  9. // @grant         GM_openInTab
  10. // ==/UserScript==
  11.  
  12. if (window === top) {
  13.   window.addEventListener('message', function (e) {
  14.     if (!/^{/.test(e.data))
  15.       return;
  16.     var data = tryParse(e.data);
  17.     if (data.name === GM_info.script.name)
  18.       navigate(data.url);
  19.   });
  20. }
  21.  
  22. var pageBase = location.href.split('#', 1)[0];
  23. var suppressing, clickedElement;
  24.  
  25. window.addEventListener('click', prevent, true);
  26. window.addEventListener('auxclick', prevent, true);
  27. window.addEventListener('mousedown', remember, true);
  28. window.addEventListener('mouseup', check, true);
  29.  
  30. function remember(e) {
  31.   clickedElement = e.composedPath ? e.composedPath()[0] : e.target;
  32. }
  33.  
  34. function check(e) {
  35.   var el = e.composedPath ? e.composedPath()[0] : e.target;
  36.   if (e.button > 1 || el !== clickedElement)
  37.     return;
  38.   var a = el.closest('a');
  39.   if (!a)
  40.     return;
  41.   blockWindowOpenAndMutations(a);
  42.   var url = a.href;
  43.   if (url.lastIndexOf('javascript:', 0) === 0)
  44.     return;
  45.   if (!url || url.split('#', 1)[0] === pageBase) {
  46.     clearLinkTarget(a);
  47.     return;
  48.   }
  49.   var b = e.button, c = e.ctrlKey, alt = e.altKey, s = e.shiftKey, m = e.metaKey;
  50.   if (b === 1 || c && !alt && !m)
  51.     GM_openInTab(url, !s || b === 1);
  52.   else if ((window.chrome || !CSS.supports('-moz-appearance', 'none')) && b === 0 && s && !c && !alt && !m)
  53.     a.cloneNode().dispatchEvent(new MouseEvent('click', {shiftKey: true}));
  54.   else if (!c && !s && !m && !alt) {
  55.     clearLinkTarget(a);
  56.     return;
  57.   } else
  58.     return;
  59.   suppressing = true;
  60.   prevent(e);
  61. }
  62.  
  63. function clearLinkTarget(a) {
  64.   if (a.target === '_blank')
  65.     a.target = '';
  66. }
  67.  
  68. function prevent(e) {
  69.   if (!suppressing)
  70.     return;
  71.   e.preventDefault();
  72.   e.stopPropagation();
  73.   e.stopImmediatePropagation();
  74.   setTimeout(function () {
  75.     suppressing = false;
  76.   }, 50);
  77. }
  78.  
  79. function blockWindowOpenAndMutations(a) {
  80.   var observer = new MutationObserver(function () {
  81.     if (a.target === '_blank') {
  82.       a.removeAttribute('target');
  83.       console.log('[Open links in current tab] prevented dynamic target=_blank for', a.href);
  84.       navigate(a.href);
  85.     }
  86.   });
  87.   observer.observe(a, {attributes: true, attributeFilter: ['target'], characterData: true});
  88.  
  89.   var _open = unsafeWindow.open;
  90.   var timeout = setTimeout(function () {
  91.     unsafeWindow.open = _open;
  92.     observer.disconnect();
  93.   }, 50);
  94.  
  95.   unsafeWindow.open = function (url, name, opts) {
  96.     let o0 = `${opts || ''}`, o1, o2, rel = [
  97.       (o1 = o0.replace(/(^|,)\s*noopener\s*($|,)/gi, '')) !== o0 && 'noopener',
  98.       (o2 = o1.replace(/(^|,)\s*noreferrer\s*($|,)/gi, '')) !== o1 && 'noreferrer',
  99.     ];
  100.     if (!o2.trim()) {
  101.       console.log('[Open links in current tab] prevented window.open for', url);
  102.       if (rel.some(Boolean)) a.relList.add.apply(a.relList, rel.filter(Boolean));
  103.       navigate(a.href);
  104.     } else
  105.       _open(url, name, opts);
  106.     unsafeWindow.open = _open;
  107.     clearTimeout(timeout);
  108.   };
  109. }
  110.  
  111. function navigate(url) {
  112.   if (window === top) {
  113.     var a = document.createElement('a');
  114.     a.href = url;
  115.     a.dispatchEvent(new MouseEvent('click'));
  116.   } else
  117.     top.postMessage(JSON.stringify({name: GM_info.script.name, url: url}), '*');
  118. }
  119.  
  120. function tryParse(str) {
  121.   try {
  122.     return JSON.parse(str);
  123.   } catch (e) {}
  124. }