The read-only domOverlayState
property of an immersive-ar
XRSession
provides information about the DOM overlay, if the feature is enabled.
Returns null
if the DOM overlay feature is not supported or not enabled or an object containing information about the DOM overlay state with the following properties:
type
-
A string indicating how the DOM overlay is being displayed. Possible values:
screen
-
The overlay is drawn on the entire screen-based device (for handheld AR devices).
head-locked
-
The overlay is drawn at a head-locked UI that fills the renderable viewport and follows the user's head movement.
floating
-
The overlay appears as a rectangle floating in space that's kept in front of the user. It doesn't necessarily fill up the entire space and/or is strictly head-locked.
if (session.domOverlayState) {
console.log(session.domOverlayState.type);
} else {
console.log("DOM overlay not supported or enabled!");
}