183 lines
3.5 KiB
JavaScript
183 lines
3.5 KiB
JavaScript
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// Adapted from three.js VRButton
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class VRButton {
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constructor(){
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this.onStartListeners = [];
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this.onEndListeners = [];
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this.element = null;
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}
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onStart(callback){
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this.onStartListeners.push(callback);
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}
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onEnd(callback){
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this.onEndListeners.push(callback);
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}
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static async createButton( renderer, options ) {
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if ( options ) {
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console.error( 'THREE.VRButton: The "options" parameter has been removed. Please set the reference space type via renderer.xr.setReferenceSpaceType() instead.' );
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}
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const button = new VRButton();
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const element = document.createElement( 'button' );
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button.element = element;
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function setEnter(){
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button.element.innerHTML = `
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<div style="font-size: 0.5em;">ENTER</div>
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<div style="font-weight: bold;">VR</div>
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`;
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}
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function setExit(){
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button.element.innerHTML = `
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<div style="font-size: 0.5em;">EXIT</div>
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<div style="font-weight: bold;">VR</div>
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`;
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}
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function showEnterVR( /*device*/ ) {
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let currentSession = null;
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function onSessionStarted( session ) {
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session.addEventListener( 'end', onSessionEnded );
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for(let listener of button.onStartListeners){
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listener();
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}
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renderer.xr.setSession( session );
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setExit();
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currentSession = session;
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}
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function onSessionEnded( /*event*/ ) {
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currentSession.removeEventListener( 'end', onSessionEnded );
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for(let listener of button.onEndListeners){
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listener();
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}
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setEnter();
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currentSession = null;
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}
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//
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button.element.style.display = '';
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button.element.style.cursor = 'pointer';
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setEnter();
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button.element.onmouseenter = function () {
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button.element.style.opacity = '1.0';
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};
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button.element.onmouseleave = function () {
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button.element.style.opacity = '0.7';
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};
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button.element.onclick = function () {
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if ( currentSession === null ) {
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// WebXR's requestReferenceSpace only works if the corresponding feature
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// was requested at session creation time. For simplicity, just ask for
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// the interesting ones as optional features, but be aware that the
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// requestReferenceSpace call will fail if it turns out to be unavailable.
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// ('local' is always available for immersive sessions and doesn't need to
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// be requested separately.)
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const sessionInit = { optionalFeatures: [ 'local-floor', 'bounded-floor', 'hand-tracking' ] };
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navigator.xr.requestSession( 'immersive-vr', sessionInit ).then( onSessionStarted );
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} else {
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currentSession.end();
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}
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};
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}
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function stylizeElement( element ) {
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element.style.position = 'absolute';
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element.style.bottom = '20px';
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element.style.padding = '12px 6px';
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element.style.border = '1px solid #fff';
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element.style.borderRadius = '4px';
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element.style.background = 'rgba(0,0,0,0.1)';
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element.style.color = '#fff';
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element.style.font = 'normal 13px sans-serif';
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element.style.textAlign = 'center';
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element.style.opacity = '0.7';
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element.style.outline = 'none';
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element.style.zIndex = '999';
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}
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if ( 'xr' in navigator ) {
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button.element.id = 'VRButton';
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button.element.style.display = 'none';
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stylizeElement( button.element );
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let supported = await navigator.xr.isSessionSupported( 'immersive-vr' );
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if(supported){
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showEnterVR();
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return button;
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}else{
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return null;
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}
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} else {
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if ( window.isSecureContext === false ) {
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console.log("WEBXR NEEDS HTTPS");
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} else {
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console.log("WEBXR not available");
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}
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return null;
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}
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}
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}
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export { VRButton };
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