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| class XRButton { | |
| static createButton( renderer, sessionInit = {} ) { | |
| const button = document.createElement( 'button' ); | |
| function showStartXR( mode ) { | |
| let currentSession = null; | |
| async function onSessionStarted( session ) { | |
| session.addEventListener( 'end', onSessionEnded ); | |
| await renderer.xr.setSession( session ); | |
| button.textContent = 'STOP XR'; | |
| currentSession = session; | |
| } | |
| function onSessionEnded( /*event*/ ) { | |
| currentSession.removeEventListener( 'end', onSessionEnded ); | |
| button.textContent = 'START XR'; | |
| currentSession = null; | |
| } | |
| // | |
| button.style.display = ''; | |
| button.style.cursor = 'pointer'; | |
| button.style.left = 'calc(50% - 50px)'; | |
| button.style.width = '100px'; | |
| button.textContent = 'START XR'; | |
| const sessionOptions = { | |
| ...sessionInit, | |
| optionalFeatures: [ | |
| 'local-floor', | |
| 'bounded-floor', | |
| 'layers', | |
| ...( sessionInit.optionalFeatures || [] ) | |
| ], | |
| }; | |
| button.onmouseenter = function () { | |
| button.style.opacity = '1.0'; | |
| }; | |
| button.onmouseleave = function () { | |
| button.style.opacity = '0.5'; | |
| }; | |
| button.onclick = function () { | |
| if ( currentSession === null ) { | |
| navigator.xr.requestSession( mode, sessionOptions ) | |
| .then( onSessionStarted ); | |
| } else { | |
| currentSession.end(); | |
| if ( navigator.xr.offerSession !== undefined ) { | |
| navigator.xr.offerSession( mode, sessionOptions ) | |
| .then( onSessionStarted ) | |
| .catch( ( err ) => { | |
| console.warn( err ); | |
| } ); | |
| } | |
| } | |
| }; | |
| if ( navigator.xr.offerSession !== undefined ) { | |
| navigator.xr.offerSession( mode, sessionOptions ) | |
| .then( onSessionStarted ) | |
| .catch( ( err ) => { | |
| console.warn( err ); | |
| } ); | |
| } | |
| } | |
| function disableButton() { | |
| button.style.display = ''; | |
| button.style.cursor = 'auto'; | |
| button.style.left = 'calc(50% - 75px)'; | |
| button.style.width = '150px'; | |
| button.onmouseenter = null; | |
| button.onmouseleave = null; | |
| button.onclick = null; | |
| } | |
| function showXRNotSupported() { | |
| disableButton(); | |
| button.textContent = 'XR NOT SUPPORTED'; | |
| } | |
| function showXRNotAllowed( exception ) { | |
| disableButton(); | |
| console.warn( 'Exception when trying to call xr.isSessionSupported', exception ); | |
| button.textContent = 'XR NOT ALLOWED'; | |
| } | |
| function stylizeElement( element ) { | |
| element.style.position = 'absolute'; | |
| element.style.bottom = '20px'; | |
| element.style.padding = '12px 6px'; | |
| element.style.border = '1px solid #fff'; | |
| element.style.borderRadius = '4px'; | |
| element.style.background = 'rgba(0,0,0,0.1)'; | |
| element.style.color = '#fff'; | |
| element.style.font = 'normal 13px sans-serif'; | |
| element.style.textAlign = 'center'; | |
| element.style.opacity = '0.5'; | |
| element.style.outline = 'none'; | |
| element.style.zIndex = '999'; | |
| } | |
| if ( 'xr' in navigator ) { | |
| button.id = 'XRButton'; | |
| button.style.display = 'none'; | |
| stylizeElement( button ); | |
| navigator.xr.isSessionSupported( 'immersive-ar' ) | |
| .then( function ( supported ) { | |
| if ( supported ) { | |
| showStartXR( 'immersive-ar' ); | |
| } else { | |
| navigator.xr.isSessionSupported( 'immersive-vr' ) | |
| .then( function ( supported ) { | |
| if ( supported ) { | |
| showStartXR( 'immersive-vr' ); | |
| } else { | |
| showXRNotSupported(); | |
| } | |
| } ).catch( showXRNotAllowed ); | |
| } | |
| } ).catch( showXRNotAllowed ); | |
| return button; | |
| } else { | |
| const message = document.createElement( 'a' ); | |
| if ( window.isSecureContext === false ) { | |
| message.href = document.location.href.replace( /^http:/, 'https:' ); | |
| message.innerHTML = 'WEBXR NEEDS HTTPS'; // TODO Improve message | |
| } else { | |
| message.href = 'https://immersiveweb.dev/'; | |
| message.innerHTML = 'WEBXR NOT AVAILABLE'; | |
| } | |
| message.style.left = 'calc(50% - 90px)'; | |
| message.style.width = '180px'; | |
| message.style.textDecoration = 'none'; | |
| stylizeElement( message ); | |
| return message; | |
| } | |
| } | |
| } | |
| export { XRButton }; | |