页面加载弹出滑块设置倒计时，小球显示秒级倒计时+环形进度条，支持拖拽、点击修改时间、暂停/继续
目前為
// ==UserScript==
// @name 定时关闭网页
// @namespace https://github.com/yingchen6
// @version 1.6
// @description 页面加载弹出滑块设置倒计时，小球显示秒级倒计时+环形进度条，支持拖拽、点击修改时间、暂停/继续
// @author yingchen6
// @match *://*/*
// @grant GM_addStyle
// @license MIT
// ==/UserScript==
(function() {
'use strict';
let timerId = null;
let remainingSeconds = 0;
function formatTime(seconds) {
const m = Math.floor(seconds / 60);
const s = seconds % 60;
return `${m}:${s.toString().padStart(2,'0')}`;
}
function startCountdown(minutes) {
remainingSeconds = minutes * 60;
// 创建秒级倒计时显示
let countdownDisplay = document.getElementById("countdown-display");
if(!countdownDisplay){
countdownDisplay = document.createElement("div");
countdownDisplay.id = "countdown-display";
countdownDisplay.style.position = "fixed";
countdownDisplay.style.top = "10px";
countdownDisplay.style.right = "10px";
countdownDisplay.style.background = "rgba(0,0,0,0.6)";
countdownDisplay.style.color = "#fff";
countdownDisplay.style.fontSize = "18px";
countdownDisplay.style.padding = "8px 12px";
countdownDisplay.style.borderRadius = "8px";
countdownDisplay.style.zIndex = "999999";
countdownDisplay.style.fontFamily = "sans-serif";
document.body.appendChild(countdownDisplay);
}
if(timerId) clearInterval(timerId);
timerId = setInterval(()=>{
remainingSeconds--;
countdownDisplay.textContent = "剩余: " + formatTime(remainingSeconds);
if(remainingSeconds <= 0){
clearInterval(timerId);
window.location.href = "about:blank";
}
},1000);
}
function showTimeSetting() {
const wrapper = document.createElement("div");
wrapper.style.position = "fixed";
wrapper.style.top = "50%";
wrapper.style.left = "50%";
wrapper.style.transform = "translate(-50%, -50%)";
wrapper.style.background = "#1e1e1e";
wrapper.style.color = "#fff";
wrapper.style.padding = "20px";
wrapper.style.borderRadius = "12px";
wrapper.style.boxShadow = "0 0 15px rgba(0,0,0,0.5)";
wrapper.style.display = "flex";
wrapper.style.flexDirection = "column";
wrapper.style.alignItems = "center";
wrapper.style.zIndex = "999999";
wrapper.style.cursor = "move";
wrapper.innerHTML = `
<h3>请选择倒计时</h3>
<input id="timeRange" type="range" min="1" max="180" step="1" value="30" style="width:200px;">
<span id="timeLabel">30 分钟</span>
<div style="margin-top:10px;">
<button id="confirmBtn">确定</button>
<button id="cancelBtn">取消</button>
</div>
`;
document.body.appendChild(wrapper);
const range = wrapper.querySelector("#timeRange");
const label = wrapper.querySelector("#timeLabel");
const confirmBtn = wrapper.querySelector("#confirmBtn");
const cancelBtn = wrapper.querySelector("#cancelBtn");
range.addEventListener("input", ()=>{
label.textContent = range.value + " 分钟";
});
confirmBtn.addEventListener("click", ()=>{
const minutes = parseInt(range.value);
document.body.removeChild(wrapper);
startCountdown(minutes);
});
cancelBtn.addEventListener("click", ()=>{
document.body.removeChild(wrapper);
});
// 拖拽功能
let isDown = false, offsetX = 0, offsetY = 0;
wrapper.addEventListener("mousedown", e=>{
isDown = true;
offsetX = e.clientX - wrapper.offsetLeft;
offsetY = e.clientY - wrapper.offsetTop;
});
document.addEventListener("mousemove", e=>{
if(isDown){
wrapper.style.left = (e.clientX - offsetX) + "px";
wrapper.style.top = (e.clientY - offsetY) + "px";
}
});
document.addEventListener("mouseup", ()=>{ isDown = false; });
}
// 页面加载立即弹出设置
window.addEventListener("load", ()=>{
showTimeSetting();
});
// Tampermonkey 菜单
if (typeof GM_registerMenuCommand !== "undefined") {
GM_registerMenuCommand("开始计时", ()=>{
showTimeSetting();
});
}
})();