files/en-us/web/api/documentpictureinpicture/enter_event/index.md
{{APIRef("Document Picture-in-Picture API")}}{{SeeCompatTable}}{{SecureContext_Header}}
The enter event of the {{domxref("DocumentPictureInPicture")}} interface is fired when the Picture-in-Picture window is successfully opened.
Use the event name in methods like {{domxref("EventTarget.addEventListener", "addEventListener()")}}, or set an event handler property.
addEventListener("enter", (event) => { })
onenter = (event) => { }
A {{domxref("DocumentPictureInPictureEvent")}}.
documentPictureInPicture.addEventListener("enter", (event) => {
const pipWindow = event.window;
console.log("Video player has entered the pip window");
const pipMuteButton = pipWindow.document.createElement("button");
pipMuteButton.textContent = "Mute";
pipMuteButton.addEventListener("click", () => {
const pipVideo = pipWindow.document.querySelector("#video");
if (!pipVideo.muted) {
pipVideo.muted = true;
pipMuteButton.textContent = "Unmute";
} else {
pipVideo.muted = false;
pipMuteButton.textContent = "Mute";
}
});
pipWindow.document.body.append(pipMuteButton);
});
{{Specifications}}
{{Compat}}