画中画功能还是很好用的，可以上班的时候摸鱼看电影。所以写个脚本给开启画中画加个快捷键方便使用。加入油猴之后在视频页按 alt+p 就可以了。
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(function () {
const getCurrentPlayingVideo = () => {
const videos = [].slice.call(document.querySelectorAll('video'))
const [video] = videos.filter(v => !v.paused)
return video
}
const requestPictureInPictureForCurrentPlayingVideo = () => {
const video = getCurrentPlayingVideo()
if (!video) return
video.requestPictureInPicture()
const handler = () => {
document.exitPictureInPicture()
video.removeEventListener(handler)
}
video.addEventListener('pause', handler)
}
document.removeEventListener('keydown', window. 开启画中画键盘事件处理器）
window. 开启画中画键盘事件处理器 = document.addEventListener('keydown', e => {
if (e.altKey && e.keyCode === 80) requestPictureInPictureForCurrentPlayingVideo()
})
})()
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