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Text To link

把文字链接转换为可点击链接

当前为 2014-08-06 提交的版本，查看 最新版本。

  1. // Generated by CoffeeScript 1.7.1
  2. // ==UserScript==
  3. // @name					Text To link
  4. // @description				把文字链接转换为可点击链接
  5. // @author					lkytal
  6. // @namespace				Lkytal
  7. // @homepage				http://coldfire.qiniudn.com/
  8. // @include					*
  9. // @exclude					*pan.baidu.com/*
  10. // @exclude					*renren.com/*
  11. // @exclude					*exhentai.org/*
  12. // @version					2.5.6
  13. // @icon					http://lkytal.qiniudn.com/ic.ico
  14. // @grant					unsafeWindow
  15. // @homepageURL				https://git.oschina.net/coldfire/GM
  16. // ==/UserScript==
  17.  
  18. "use strict";
  19. var LinkPage, excludedTags, filter, linkMixInit, linkPack, linkify, observer, setHttp, setLink, url_regexp, xpath;
  20.  
  21. url_regexp = /((https?:\/\/|www\.)[\x21-\x7e]+\w|(\w[\w._-]+\.(com|cn|org|net|info|tv|cc))(\/[\x21-\x7e]*\w)?)/gi;
  22.  
  23. setHttp = function(event) {
  24.   var url;
  25.   url = event.target.getAttribute("href");
  26.   if (url.indexOf("http") !== 0) {
  27.     return event.target.setAttribute("href", "http://" + url);
  28.   }
  29. };
  30.  
  31. if (typeof exportFunction !== "undefined" && exportFunction !== null) {
  32.   exportFunction(setHttp, unsafeWindow, {
  33.     defineAs: "setHttp"
  34.   });
  35. } else {
  36.   unsafeWindow.setHttp = setHttp;
  37. }
  38.  
  39. setLink = function(candidate) {
  40.   var span, text;
  41.   if ((candidate == null) || candidate.nodeName === "#cdata-section") {
  42.     return;
  43.   }
  44.   text = candidate.textContent.replace(url_regexp, '<a href="$1" target="_blank" onmouseover="setHttp(event);">$1</a>');
  45.   if (candidate.textContent.length === text.length) {
  46.     return;
  47.   }
  48.   span = document.createElement("span");
  49.   span.innerHTML = text;
  50.   return candidate.parentNode.replaceChild(span, candidate);
  51. };
  52.  
  53. excludedTags = "a,applet,input,button,area,pre,embed,frame,frameset,head,iframe,img,map,meta,noscript,object,option,param,script,select,style,textarea,code".split(",");
  54.  
  55. xpath = "//text()[not(ancestor::" + excludedTags.join(') and not(ancestor::') + ")]";
  56.  
  57. filter = new RegExp("^(textarea|input|button|pre|select|option|meta|link|noscript|a|html|head|object|embed|script|style|frameset|frame|iframe|img|code)$", "i");
  58.  
  59. linkPack = function(result, start) {
  60.   var i, _i, _j, _ref, _ref1;
  61.   if (start + 10000 < result.snapshotLength) {
  62.     for (i = _i = start, _ref = start + 10000; start <= _ref ? _i <= _ref : _i >= _ref; i = start <= _ref ? ++_i : --_i) {
  63.       setLink(result.snapshotItem(i));
  64.     }
  65.     setTimeout(function() {
  66.       return linkPack(result, start + 10000);
  67.     }, 10);
  68.   } else {
  69.     for (i = _j = start, _ref1 = result.snapshotLength; start <= _ref1 ? _j <= _ref1 : _j >= _ref1; i = start <= _ref1 ? ++_j : --_j) {
  70.       setLink(result.snapshotItem(i));
  71.     }
  72.   }
  73. };
  74.  
  75. linkify = function(doc) {
  76.   var result;
  77.   result = document.evaluate(xpath, doc, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
  78.   return linkPack(result, 0);
  79. };
  80.  
  81. LinkPage = function(root) {
  82.   var tW;
  83.   tW = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, {
  84.     acceptNode: function(a) {
  85.       if (!filter.test(a.parentNode.localName)) {
  86.         return NodeFilter.FILTER_ACCEPT;
  87.       }
  88.     }
  89.   }, false);
  90.   while (tW.nextNode()) {
  91.     setLink(tW.currentNode);
  92.   }
  93. };
  94.  
  95. observer = new window.MutationObserver(function(mutations) {
  96.   var Node, mutation, _i, _j, _len, _len1, _ref;
  97.   for (_i = 0, _len = mutations.length; _i < _len; _i++) {
  98.     mutation = mutations[_i];
  99.     _ref = mutation.addedNodes;
  100.     for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
  101.       Node = _ref[_j];
  102.       LinkPage(Node);
  103.     }
  104.   }
  105. });
  106.  
  107. linkMixInit = function() {
  108.   linkify(document.body);
  109.   return observer.observe(document.body, {
  110.     childList: true,
  111.     subtree: true
  112.   });
  113. };
  114.  
  115. if (!(window !== window.top || window.document.title === "")) {
  116.   linkMixInit();
  117. }