// ==UserScript==
// @name Lib_MyAPI
// @namespace AC-API
// @include *
// @run-at document-start
// @version 2024.03.07
// @grant   GM_xmlhttpRequest
// @description 封装了一些常用的API，用于方便调用
// ==/UserScript==
// 避免函数污染
const ACMO = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;
// 不能用unsafeWindow来暴露MyApi，否则会有http的安全问题
const MyApi = (() => {
/**
* @param css CSS的正文内容
* @param className 被添加的css节点的class，用于onlyOne检测
* @param isReload 是否自动更新：移除后重新添加
*/
function addStyle(css, className = '', isReload = false){ // 添加CSS代码，不考虑文本载入时间，带有className
const tout = setInterval(function() {
if (document.body != null) {
clearInterval(tout);
if (className) {
// 节点不存在,或者是准备覆盖的时候
if (isReload === false && document.querySelector("." + className) != null) {
return;
}
// 节点已经存在,并且不准备覆盖
try {
document.querySelector("." + className).remove();
} catch (e) {
}
}
const cssNode = document.createElement("style");
if (className) {
cssNode.className = className;
}
cssNode.innerHTML = css;
try {
document.body.appendChild(cssNode);
} catch (e) {
console.log(e.message);
}
}
}, 200);
}
function addScript(scriptInner) {
const scriptNode = document.createElement('script')
scriptNode.innerText = scriptInner
document.head.appendChild(scriptNode)
}
const safeWaitFunc = function waitForElm(selector, callbackFunc = node => {}, findTick = 200, clearAfterFind = true, timeout = 20000 * 1000) {
const handle = () => {
if ((typeof (selector) === "string")) {
let res = document.querySelectorAll(selector);
if(res && res.length) {
callbackFunc(res);
}
} else if (typeof (selector) === "function") {
const res =  selector()
if(res && res.length) {
callbackFunc(res);
}
}
}
let lastRunAt = 0 // 最近一次运行的时间
let onlyTimer;
const firstRunAt = Date.now()
// 其他时间增加监听即可
const watcher = new ACMO(() => {
// 超过节流时间间隔，立即执行事件处理函数
if(Date.now() - lastRunAt > findTick) {
handle()
if(clearAfterFind) {
watcher.disconnect();
}
lastRunAt = Date.now()
} else {
// 未超过节流时间间隔，设置定时器延迟执行事件处理函数
clearTimeout(timer);
onlyTimer = setTimeout(() => {
handle();
lastRunAt = Date.now()
}, findTick);
}
// 超过最大时限，那么停止监听
if(Date.now() - firstRunAt > timeout) {
watcher.disconnect();
}
});
watcher.observe(document.body, {
childList: true,
subtree: true
});
}
function getUrlAttribute(attribute, needDecode = true){
var searchValue = (window.location.search.substr(1) + "").split("&");
for (var i = 0; i < searchValue.length; i++) {
var key_value = searchValue[i].split("=");
var reg = new RegExp("^"+attribute+"$");
if (reg.test(key_value[0])) {
var searchWords = key_value[1];
return needDecode?decodeURIComponent(searchWords):searchWords;
}
}
}
const http = {
async get(url) {
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
url,
method: 'GET',
timeout: 10000,
onload: resp => resolve([null, resp.responseText]),
onerror: resp => reject([resp, {}])
})
})
},
async post(url, data) {
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
url,
data,
method: 'POST',
timeout: 10000,
onload: resp => resolve([null, resp.responseText]),
onerror: resp => reject([resp, {}])
})
})
}
}
return {
addStyle,
addScript,
safeWaitFunc,
getUrlAttribute,
http
}
})()