Thebeforexrselect event is fired before WebXR select events (select,selectstart,selectend) are dispatched. It can be used to suppress XR world input events while the user is interacting with a DOM overlay UI.

This eventbubbles, iscancelable and iscomposed.

Syntax

Use the event name in methods likeaddEventListener(), or set an event handler property.

addEventListener("beforexrselect", (event) => { })onbeforexrselect = (event) => { }

Event type

AnXRSessionEvent. Inherits fromEvent.

Event properties

sessionRead only

TheXRSession to which the event refers.

Event availability

Thebeforexrselect event is a global event and available to the following interfaces:

• Window
• Document
• HTMLElement
• SVGElement
• MathMLElement

Examples

To suppress WebXR select events (select,selectstart,selectend), an application can listen for thebeforexrselect event. The event bubbles, so a call topreventDefault() on the DOM overlay element will prevent any WebXR select events within this container allowing interaction with the DOM element and avoiding duplicate event input to the XR world.

document  .getElementById("xr-overlay")  .addEventListener("beforexrselect", (ev) => ev.preventDefault());

Specifications

Browser compatibility

See also

• select event
• selectstart event
• selectend event