Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The vrdisplayactivate
event of the WebVR API is fired when a VR display is able to be presented to, for example if an HMD has been moved to bring it out of standby, or woken up by being put on.
This event is not cancelable and does not bubble.
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener("vrdisplayactivate", (event) => {});
onvrdisplayactivate = (event) => {};
A VRDisplayEvent
. Inherits from Event
.
VRDisplayEvent
also inherits properties from its parent object, Event
.
-
VRDisplayEvent.display
Deprecated Read only
-
The VRDisplay
associated with this event.
-
VRDisplayEvent.reason
Deprecated Read only
-
A human-readable reason why the event was fired.
You can use the vrdisplayactivate
event in an addEventListener
method:
window.addEventListener("vrdisplayactivate", () => {
info.textContent = "Display activated.";
reportDisplays();
});
Or use the onvrdisplayactivate
event handler property:
window.onvrdisplayactivate = () => {
info.textContent = "Display activated.";
reportDisplays();
};
This event was part of the old WebVR API that has been superseded by the WebXR Device API. It is no longer on track to becoming a standard.
Until all browsers have implemented the new WebXR Device API, it is recommended to rely on frameworks, like A-Frame, Babylon.js, or Three.js, or a polyfill, to develop WebXR applications that will work across all browsers [1].