// ==UserScript==
// @name        Region loop
// @namespace   Violentmonkey Scripts
// @match       https://www.bilibili.com/video/*
// @grant       unsafeWindow
// @version     1.0.1
// @author      5ec1cff
// @run-at      document-body
// @description 2024/5/15 14:39:50
// @license     MIT
// ==/UserScript==
((window) => {
let document = window.document;
let enableCheck;
let leftBtn;
let leftResetBtn;
let rightBtn;
let rightResetBtn;
let left = null, right = null, enabled = false;
function install(dom, video) {
let root = dom.querySelector('#my_play_control');
if (root == null) root = document.createElement('div');
root.id = 'my_play_control';
dom.appendChild(root);
root.innerHTML = `
<input type="checkbox" id="enable_loop">
<label for="enable_loop">开启循环</label>
<input type="button" value="[x" id="reset_left" />
<input type="button" value="[" id="set_left" />
<input type="button" value="]" id="set_right" />
<input type="button" value="x]" id="reset_right" />
`;
enableCheck = root.querySelector('#enable_loop');
leftBtn = root.querySelector('#set_left');
leftResetBtn = root.querySelector('#reset_left');
rightBtn = root.querySelector('#set_right');
rightResetBtn = root.querySelector('#reset_right');
enableCheck.addEventListener('change', () => {
enabled = enableCheck.checked;
})
leftBtn.addEventListener('click', () => {
let newLeft = video.currentTime;
if (newLeft >= (right ?? Infinity)) return;
left = newLeft;
leftBtn.value='['+left;
})
rightBtn.addEventListener('click', () => {
let newRight = video.currentTime;
if (newRight <= (left ?? 0)) return;
right = newRight;
rightBtn.value=right+']';
})
leftResetBtn.addEventListener('click', () => {
left = null;
leftBtn.value='[';
})
rightResetBtn.addEventListener('click', () => {
right = null;
rightBtn.value=']';
})
video.addEventListener('timeupdate', () => {
if (!enabled) return;
let current = video.currentTime;
if (current >= (right ?? Infinity) || current < left) video.currentTime = left ?? 0;
})
video.addEventListener('ended', () => {
if (!enabled) return;
video.currentTime = left ?? 0;
video.play();
})
}
let intv = 0;
intv = setInterval(() => {
let root = document.querySelector('#viewbox_report'), video = document.querySelector('video');
if (root == null || video == null) return;
install(root, video);
console.log('install success on', root, video)
clearInterval(intv);
}, 1000)
})(unsafeWindow)