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Add support for offerSession #5410

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merged 7 commits into from
Dec 12, 2023
Merged

Add support for offerSession #5410

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ac29977
Add support for offerSession
cabanier Dec 11, 2023
e173bb9
simplify offerSession implementation
cabanier Dec 11, 2023
a03d112
Address review comments
cabanier Dec 12, 2023
94488f7
Address review comments
cabanier Dec 12, 2023
d1a057f
handle self.usedOfferSession state properly
cabanier Dec 12, 2023
e44bd2b
fix build problem
cabanier Dec 12, 2023
4fd2c88
Address review comment
cabanier Dec 12, 2023
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2 changes: 2 additions & 0 deletions src/components/scene/xr-mode-ui.js
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Original file line number Diff line number Diff line change
Expand Up @@ -150,6 +150,7 @@ module.exports.Component = registerComponent('xr-mode-ui', {
} else {
if (!utils.device.checkVRSupport()) { this.enterVREl.classList.add('fullscreen'); }
this.enterVREl.classList.remove(HIDDEN_CLASS);
sceneEl.enterVR(false, true);
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We should probably handle this a bit differently. Give control to the dev and decide if the page is auto-entering VR. Maybe a property in this component enterImmersiveModeAtPageLoad a tad long but descriptive. open to a shorter alternative. We can then probably handled the sceneEl.enterVR here https://github.com/aframevr/aframe/pull/5410/files#diff-8eae4e9d86bc7d08e7db133212411b40a655722a0d8c42c1c99c45fccef72f74L124 before deciding to display the UI

}
},

Expand All @@ -161,6 +162,7 @@ module.exports.Component = registerComponent('xr-mode-ui', {
this.enterAREl.classList.add(HIDDEN_CLASS);
} else {
this.enterAREl.classList.remove(HIDDEN_CLASS);
sceneEl.enterVR(true, true);
}
},

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13 changes: 11 additions & 2 deletions src/core/scene/a-scene.js
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Expand Up @@ -270,13 +270,15 @@ class AScene extends AEntity {
* @param {bool?} useAR - if true, try immersive-ar mode
* @returns {Promise}
*/
enterVR (useAR) {
enterVR (useAR, useOfferSession = false) {
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var self = this;
var vrDisplay;
var vrManager = self.renderer.xr;
var xrInit;

// Don't enter VR if already in VR.
if (navigator.xr.offerSession === undefined) { return Promise.resolve('OfferSession is not supported.'); }
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if (this.is('has-offer-session')) { return Promise.resolve('Already has offerSession.'); }
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if (this.is('vr-mode')) { return Promise.resolve('Already in VR.'); }

// Has VR.
Expand All @@ -294,9 +296,15 @@ class AScene extends AEntity {
var xrMode = useAR ? 'immersive-ar' : 'immersive-vr';
xrInit = this.sceneEl.systems.webxr.sessionConfiguration;
return new Promise(function (resolve, reject) {
navigator.xr.requestSession(xrMode, xrInit).then(
var requestFunction = useOfferSession ? navigator.xr.offerSession.bind(navigator.xr) : navigator.xr.requestSession.bind(navigator.xr);
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if (useOfferSession) {
self.addState('has-offer-session');
}
requestFunction(xrMode, xrInit).then(
function requestSuccess (xrSession) {
self.xrSession = xrSession;
self.removeState('has-offer-session');

vrManager.layersEnabled = xrInit.requiredFeatures.indexOf('layers') !== -1;
vrManager.setSession(xrSession).then(function () {
vrManager.setFoveation(rendererSystem.foveationLevel);
Expand All @@ -306,6 +314,7 @@ class AScene extends AEntity {
enterVRSuccess(resolve);
},
function requestFail (error) {
self.removeState('has-offer-session');
var useAR = xrMode === 'immersive-ar';
var mode = useAR ? 'AR' : 'VR';
reject(new Error('Failed to enter ' + mode + ' mode (`requestSession`)', { cause: error }));
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