window.onvrdisplayblur

The onvrdisplayblur property of the Window interface represents an event handler that will run when presentation to a display has been paused for some reason by the browser, OS, or VR hardware (when the vrdisplayblur event fires) — for example, while the user is interacting with a system menu or browser, to prevent tracking or loss of experience.

While a VRDisplay is blurred it does not lose it’s presenting status (VRDisplay.isPresenting continues to report true) but VRDisplay.getFrameData() returns false without updating the provided VRFrameData and VRDisplay.getPose() returns a VRPose with null members.

The event object is of type VRDisplayEvent.

Syntax

window.onvrdisplayblur = function() { ... };

Examples

window.onvrdisplayblur = function() {
  info.textContent = 'Display unfocused.';
};

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• WebVR API homepage
• MozVr.com — demos, downloads, and other resources from the Mozilla VR team.