// @run-at document-start
/*
* @name: 让链接可点击
* @Author: 谷花泰
* @version: 1.0
* @description: 不用再复制链接打开这么麻烦了
* @include: *
* @createTime: 2019-11-12 13:47:41
* @updateTime: 2019-11-16 23:04:54
*/
(function () {
/* 判断是否该执行 */
/* 网址黑名单制，遇到这些域名不执行 */
const blackList = ['example.com'];

const hostname = window.location.hostname;
const key = encodeURIComponent('谷花泰:让链接可点击:执行判断');
const isBlack = blackList.some(keyword => {
if (hostname.match(keyword)) {
return true;
};
return false;
});

if (isBlack || window[key]) {
return;
};
window[key] = true;

class ClickLink {
constructor() {
this.init();
};
init() {
document.head.innerHTML += `
<style>
.via-link {
color: #00c !important;
cursor: pointer;
}
</style>
`;
this.listenNode();
document.body.addEventListener('click', (e) => {
if (Array.from(e.target.classList).includes('via-link')) {
window.location.href = e.target.dataset.viaLink;
}
}, false);
};
observe({ targetNode, config = {}, callback = () => { } }) {
if (!targetNode) {
return;
};

config = Object.assign({
attributes: true,
childList: true,
subtree: true
}, config);

const observer = new MutationObserver(callback);
observer.observe(targetNode, config);
};
getTextNode(elm) {
let node;
const nodes = [];
const walk = document.createTreeWalker(elm, NodeFilter.SHOW_TEXT, null, false);
while (node = walk.nextNode()) {
nodes.push(node);
};
return nodes;
};
markLink(_elm) {
const elm = _elm || document.body;
const textNodes = this.getTextNode(elm);
const linkReg = /((https?:\/\/|www\.)[\x21-\x7e]+[\w\/]|(\w[\w._-]+\.(com|cn|org|net|info|tv|cc))(\/[\x21-\x7e]*[\w\/])?|ed2k:\/\/[\x21-\x7e]+\|\/|thunder:\/\/[\x21-\x7e]+=)/gi;
/* const linkReg = /(([\w\d\.]|\:\/\/)+?\.[\w\d\.]+)(\/[\x21-\x7e]*)?/gi; */
for (let i = 0; i < textNodes.length; i++) {
const textNode = textNodes[i];
const parentNodeName = textNode.parentNode.nodeName.toLowerCase();
if (['script', 'style'].includes(parentNodeName)) {
continue;
};
const linkMatchResult = textNode.textContent.match(linkReg);
if (!linkMatchResult || linkMatchResult.length === 0) {
continue;
};

let link = linkMatchResult[0];
if (!(/\:\/\//gi.test(link))) {
link = 'http://' + link;
};
textNode.parentNode.dataset.viaLink = link;
textNode.parentNode.classList.add('via-link');
};
};
listenNode() {
let that = this;
this.observe({
targetNode: document.documentElement,
config: {
attributes: false
},
callback(mutations, observe) {
that.markLink();
}
})
};
};

try {
new ClickLink();
} catch (err) {
console.log('让链接可点击：', err);
};
})();