HTMLVideoElement.requestPictureInPicture()

The HTMLVideoElement method requestPictureInPicture() issues an asynchronous request to display the video in picture-in-picture mode.

It's not guaranteed that the video will be put into picture-in-picture. If permission to enter that mode is granted, the returned Promise will resolve and the video will receive a enterpictureinpicture event to let it know that it's now in picture-in-picture.

A Promise that will resolve to a PictureInPictureWindow object. that can be used to listen when a user will resize that floating window.

This example requests that the video enters Picture-in-Picture mode, and sets an event listener to handle the floating window resizing.

function enterPictureInPicture() {
  videoElement.requestPictureInPicture()
    .then(pictureInPictureWindow => {
      pictureInPictureWindow.addEventListener("resize", () => onPipWindowResize(), false);
    })
}

• The <video> element
• HTMLVideoElement.autoPictureInPicture
• HTMLVideoElement.disablePictureInPicture
• Document.pictureInPictureEnabled
• Document.exitPictureInPicture()
• Document.pictureInPictureElement
• :picture-in-picture