自动计算B站视频列表中从当前集数到最后一集的剩余时长，并支持手动输入集数计算
// ==UserScript==
// @name Bilibili Video Duration Calculator
// @namespace http://tampermonkey.net/
// @version 3.0
// @description 自动计算B站视频列表中从当前集数到最后一集的剩余时长，并支持手动输入集数计算
// @author Jian A
// @match https://www.bilibili.com/video/*
// @license MIT
// @grant none
// ==/UserScript==
(function() {
'use strict';
// 将时长从MM:SS或HH:MM:SS转换为秒
function parseDuration(duration) {
const cleanDuration = duration.trim().replace(/^0+/, '');
const parts = cleanDuration.split(':').map(Number);
if (parts.length < 2 || parts.length > 3) {
console.warn('异常时长格式:', duration);
return 0;
}
const isValid = parts.every((part, index) => {
if (isNaN(part)) return false;
if (index === 0 && parts.length === 3) return part < 24; // 小时
return part < 60; // 分钟和秒钟
});
if (!isValid) {
console.warn('异常时长值:', duration);
return 0;
}
if (parts.length === 2) {
return parts[0] * 60 + parts[1];
} else {
return parts[0] * 3600 + parts[1] * 60 + parts[2];
}
}
// 将总秒数转换为HH:MM:SS格式
function formatDuration(totalSeconds) {
const hours = Math.floor(totalSeconds / 3600);
const minutes = Math.floor((totalSeconds % 3600) / 60);
const seconds = totalSeconds % 60;
return `${hours}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
}
// 获取当前播放的集数
function getCurrentEpisode() {
const urlParams = new URLSearchParams(window.location.search);
const p = urlParams.get('p');
return p ? parseInt(p) : 1;
}
// 主要计算逻辑
function calculateTotalDuration(startPage) {
const videoItems = document.querySelectorAll('.stat-item.duration');
let totalSeconds = 0;
let totalEpisodes = videoItems.length;
let validDurations = 0;
if (totalEpisodes === 0) {
console.warn('未找到视频时长元素');
return {
duration: '0:00:00',
totalEpisodes: 0,
remainingEpisodes: 0
};
}
startPage = Math.max(1, Math.min(startPage, totalEpisodes));
let remainingEpisodes = 0;
videoItems.forEach((item, index) => {
const pageNum = index + 1;
if (pageNum > startPage) {
const duration = item.textContent.trim();
const seconds = parseDuration(duration);
if (seconds > 0) {
totalSeconds += seconds;
remainingEpisodes++;
validDurations++;
} else {
console.warn(`第${pageNum}集时长(无效): ${duration}`);
}
}
});
return {
duration: formatDuration(totalSeconds),
totalEpisodes: totalEpisodes,
remainingEpisodes: remainingEpisodes
};
}
// 创建控件
function createControls() {
// 检查是否已经存在控件
if (document.querySelector('.custom-control-container')) {
return;
}
const container = document.createElement('div');
container.className = 'custom-control-container';
container.style.cssText = `
display: flex;
align-items: center;
gap: 10px;
margin-left: auto;
`;
const button = document.createElement('button');
button.textContent = '计算剩余时长';
button.style.cssText = `
padding: 5px 10px;
background: #00A1D6;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
transition: background 0.3s ease;
`;
button.addEventListener('mouseover', () => {
button.style.background = '#0087B3';
});
button.addEventListener('mouseout', () => {
button.style.background = '#00A1D6';
});
const input = document.createElement('input');
input.type = 'number';
input.placeholder = '输入集数';
input.style.cssText = `
width: 80px;
padding: 5px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 14px;
text-align: center;
`;
const resultBox = document.createElement('div');
resultBox.style.cssText = `
display: none;
padding: 5px 10px;
background: rgba(0, 0, 0, 0.7);
color: white;
border-radius: 4px;
font-size: 14px;
line-height: 1.5;
white-space: nowrap;
`;
container.appendChild(input);
container.appendChild(button);
container.appendChild(resultBox);
const titleContainer = document.querySelector('.video-info-title');
if (titleContainer) {
titleContainer.style.display = 'flex';
titleContainer.style.alignItems = 'center';
titleContainer.appendChild(container);
} else {
console.warn('未找到标题容器');
}
return { button, input, resultBox };
}
// 更新显示
function updateDisplay(resultBox, startPage) {
const result = calculateTotalDuration(startPage);
if (result.totalEpisodes === 0) {
resultBox.textContent = '未找到视频时长信息';
} else if (startPage < 1 || startPage > result.totalEpisodes) {
resultBox.textContent = '请输入有效的集数（1 到 ' + result.totalEpisodes + '）';
} else if (startPage >= result.totalEpisodes) {
resultBox.textContent = '🎉 恭喜你已经看完全部内容啦！';
} else {
resultBox.textContent = `距离撒花还有${result.remainingEpisodes}集，` +
`总时长: ${result.duration} 🌸`;
}
resultBox.style.display = 'block';
}
// 初始化
function init() {
const durationElements = document.querySelectorAll('.stat-item.duration');
const titleContainer = document.querySelector('.video-info-title');
if (durationElements.length > 0 && titleContainer) {
const { button, input, resultBox } = createControls();
// 默认从当前集数计算
let currentEpisode = getCurrentEpisode();
updateDisplay(resultBox, currentEpisode);
// 点击按钮时从输入框的集数计算
button.addEventListener('click', () => {
const startPage = parseInt(input.value) || currentEpisode;
updateDisplay(resultBox, startPage);
});
// 回车键触发计算
input.addEventListener('keypress', (e) => {
if (e.key === 'Enter') {
const startPage = parseInt(input.value) || currentEpisode;
updateDisplay(resultBox, startPage);
}
});
// URL变化时自动更新
let lastUrl = location.href;
new MutationObserver(() => {
const url = location.href;
if (url !== lastUrl) {
lastUrl = url;
setTimeout(() => {
currentEpisode = getCurrentEpisode();
input.value = ''; // 清空输入框
updateDisplay(resultBox, currentEpisode);
}, 1000);
}
}).observe(document, { subtree: true, childList: true });
} else {
console.warn('未找到视频时长元素或标题容器');
}
}
// 启动时添加延迟
setTimeout(() => {
if (document.readyState === 'complete') {
init();
} else {
window.addEventListener('load', init);
}
}, 2000);
})();