// ==UserScript==
// @name         阮一峰周刊引用链接跳转
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  为阮一峰周刊的公众号页面的条目添加链接
// @author       Cesaryuan
// @match        https://mp.weixin.qq.com/*
// @icon         https://www.google.com/s2/favicons?domain=qq.com
// @grant        none
// @license      MIT
// ==/UserScript==
(function() {
'use strict';
// 获取公众号名称
var name = document.querySelector('#js_name').innerText;
// 获取文章名称
var articleTitle = document.querySelector('#activity-name').innerText;
if(name.includes('阮一峰的网络日志') && articleTitle.trim().startsWith('科技爱好者周刊')){
var items = getElementByXpathAll('//p/span[sup and contains(@style, \'rgb(255, 53, 2)\')]')
for (var item of items) {
/** @type {HTMLElement} */
var indexSup = item.firstElementChild;
if(indexSup.tagName === 'SUP' && indexSup.innerText.startsWith('[')){
var index = indexSup.innerText.substr(1, indexSup.innerText.length - 2);
var emLinkElement = getElementByXpath(`//p/code[contains(text(), '[${index}]')]/following::em`);
var link = emLinkElement.innerText;
placeElementInAnchor(indexSup, link);
}
}
}
/**
* @return {Node}
* @param xpath
*/
function getElementByXpath(xpath){
return document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
}
/**
*
* @param {string} xpath
* @returns {HTMLElement[]}
*/
function getElementByXpathAll(xpath){
var result = [];
var xpathResult = document.evaluate(xpath, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
for (var i = 0; i < xpathResult.snapshotLength; i++) {
result.push(xpathResult.snapshotItem(i));
}
return result;
}
function placeElementInAnchor(element, url){
var anchor = document.createElement('a');
anchor.href = url;
anchor.target = '_blank';
anchor.innerText = element.innerText;
element.innerText = '';
element.appendChild(anchor);
}
})();