把文字链接转换为可点击链接
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// ==UserScript==
// @name Text To link
// @description 把文字链接转换为可点击链接
// @author lkytal
// @namespace Lkytal
// @homepage http://coldfire.qiniudn.com/
// @include *
// @exclude *pan.baidu.com/*
// @exclude *renren.com/*
// @exclude *exhentai.org/*
// @version 2.5.8
// @icon http://lkytal.qiniudn.com/ic.ico
// @grant unsafeWindow
// @homepageURL https://git.oschina.net/coldfire/GM
// ==/UserScript==
"use strict";
var excludedTags, filter, linkMixInit, linkPack, linkify, observePage, observer, setHttp, setLink, url_regexp, xpath;
url_regexp = /((https?:\/\/|www\.)[\x21-\x7e]+\w|(\w[\w._-]+\.(com|cn|org|net|info|tv|cc))(\/[\x21-\x7e]*\w)?)/gi;
setHttp = function(event) {
var url;
url = event.target.getAttribute("href");
if (url.indexOf("http") !== 0) {
return event.target.setAttribute("href", "http://" + url);
}
};
if (typeof exportFunction !== "undefined" && exportFunction !== null) {
exportFunction(setHttp, unsafeWindow, {
defineAs: "setHttp"
});
} else {
unsafeWindow.setHttp = setHttp;
}
setLink = function(candidate) {
var span, text;
if ((candidate == null) || candidate.nodeName === "#cdata-section") {
return;
}
text = candidate.textContent.replace(url_regexp, '<a href="$1" target="_blank" onmouseover="setHttp(event);">$1</a>');
if (candidate.textContent.length === text.length) {
return;
}
span = document.createElement("span");
span.innerHTML = text;
return candidate.parentNode.replaceChild(span, candidate);
};
excludedTags = "a,svg,canvas,applet,input,button,area,pre,embed,frame,frameset,head,iframe,img,map,meta,noscript,object,option,param,script,select,style,textarea,code".split(",");
xpath = "//text()[not(ancestor::" + (excludedTags.join(') and not(ancestor::')) + ")]";
filter = new RegExp("^(" + (excludedTags.join('|')) + ")$", "i");
linkPack = function(result, start) {
var i, _i, _j, _ref, _ref1;
if (start + 10000 < result.snapshotLength) {
for (i = _i = start, _ref = start + 10000; start <= _ref ? _i <= _ref : _i >= _ref; i = start <= _ref ? ++_i : --_i) {
setLink(result.snapshotItem(i));
}
setTimeout(function() {
return linkPack(result, start + 10000);
}, 20);
} else {
for (i = _j = start, _ref1 = result.snapshotLength; start <= _ref1 ? _j <= _ref1 : _j >= _ref1; i = start <= _ref1 ? ++_j : --_j) {
setLink(result.snapshotItem(i));
}
}
};
linkify = function(doc) {
var result;
result = document.evaluate(xpath, doc, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
return linkPack(result, 0);
};
observePage = function(root) {
var tW;
tW = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, {
acceptNode: function(a) {
if (!filter.test(a.parentNode.localName)) {
return NodeFilter.FILTER_ACCEPT;
}
}
}, false);
while (tW.nextNode()) {
setLink(tW.currentNode);
}
};
observer = new window.MutationObserver(function(mutations) {
var Node, mutation, _i, _j, _len, _len1, _ref;
for (_i = 0, _len = mutations.length; _i < _len; _i++) {
mutation = mutations[_i];
if (mutation.type === "childList") {
_ref = mutation.addedNodes;
for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
Node = _ref[_j];
observePage(Node);
}
}
}
});
linkMixInit = function() {
if (window !== window.top || window.document.title === "") {
return;
}
linkify(document.body);
return observer.observe(document.body, {
childList: true,
subtree: true
});
};
setTimeout(linkMixInit, 100);