support WebXR Navigation permission

[arpu]

in new OculusBrowser there is navigation support for webxr

related https://github.com/immersive-web/navigation

[dmarcos]

wow! good catch! I would’ve never expected to see navigation implemented so quickly. Oculus browser folks are doing an amazing job shipping experimental features. hat off 🎩 to @Artyom17 and any other Oculus friends involved.

[Artyom17]

Yes, we have it experimentally implemented. Note, that the "Default" setting allows only certain well-known domains, so, most likely you need to switch to Enabled state to make it work for all domains.

[dmarcos]

@Artyom17 I was testing the sessiongranted event and It didn't work as I was expecting. I'm navigating to the same page url after entering VR mode (with navigation setting to Allowed)

window.location = "https://nova-childlike-leaf.glitch.me/

and I was expecting the event to fire:

 navigator.xr.addEventListener('sessiongranted', function (evt) {
    console.log('SESSION GRANTED');
 });

Full working example: https://nova-childlike-leaf.glitch.me/
and code: https://glitch.com/edit/#!/nova-childlike-leaf?path=index.html:10:9

Am I missing anything? Thanks

[Artyom17]

You need to call requestSession in the listener of sessiongranted.

navigator.xr.addEventListener('sessiongranted', onSessionGranted);

      function onSessionGranted() {
        console.log("onSessionGranted");
        onRequestSession();
      }

      function onRequestSession() {
        console.log("onRequestSession");
        return navigator.xr.requestSession('immersive-vr', {
            requiredFeatures: ['local-floor'] 
        }).then((session) => {
          xrButton.setSession(session);
          session.isImmersive = true;
          onSessionStarted(session);
        });
      }

An example code: https://github.com/Artyom17/webxr-samples/blob/gh-pages/tests/navigation.html

Working sample: https://artyom17.github.io/webxr-samples/tests/navigation.html

[Artyom17]

Actually, found a bug in my code that didn't allow to enable the XR navigation for any site. The fix is in the queue, the workaround is to switch the browser to single process mode via 'adb shell setprop debug.oculus.browser.singleproc 1' followed by 'adb shell am force-stop com.oculus.browser' commands. Note, the prop is not persistent and will be reset after reboot.
The issue will be fixed in OB 8.3

[Artyom17]

BTW, it was fixed a long time ago.

[dmarcos]

Awesome thanks. I’ll try later

[arpu]

@dmarcos is there anything needed to change in aframe?