This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
The isPresenting
read-only property of the VRDisplay
interface returns a Boolean
indicating whether the VRDisplay
is currently having content presented through it.
Syntax
var isItPresenting = vrDisplayInstance.isPresenting;
Value
A Boolean
; true
means the display is presenting; false
means it isn't.
Examples
function onVRExitPresent () {
// No sense in exiting presentation if we're not actually presenting.
// (This may happen if we get an event like vrdisplaydeactivate when
// we weren't presenting.)
if (!vrDisplay.isPresenting)
return;
vrDisplay.exitPresent().then(function () {
// Nothing to do because we're handling things in onVRPresentChange.
}, function (err) {
var errMsg = "exitPresent failed.";
if (err && err.message) {
errMsg += "<br/>" + err.message
}
VRSamplesUtil.addError(errMsg, 2000);
});
}
Note: Code snippet taken from Google's VR Presentation demo.
Specifications
Specification | Status | Comment |
WebVR 1.1The definition of 'isPresenting' in that specification. | Draft | Initial definition |
Browser compatibility
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
No support No |
Edge
No support 15 — 79 |
Firefox Full support 55 Full support 55 Notes' Windows support was enabled in Firefox 55. Full support 64 Notes' macOS support was enabled in Firefox 64. |
IE
No support No |
Opera
? |
Safari
No support No |
WebView Android
No support No |
Chrome Android No support 56 — 80 No support 56 — 80 Notes' Only works in an experimental version of Chrome. (Other builds won't return any devices when |
Firefox Android
Full support 55 |
Opera Android
? |
Safari iOS
? |
Samsung Internet Android Full support 6.0 Full support 6.0 Notes' Google Cardboard supported in Samsung Internet 7.0. |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- Deprecated. Not for use in new websites.'
- Deprecated. Not for use in new websites.
- See implementation notes.'
- See implementation notes.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
- WebVR API homepage
- MozVr.com — demos, downloads, and other resources from the Mozilla VR team.
VRDisplay.isPresenting by Mozilla Contributors is licensed under CC-BY-SA 2.5.