Basic XRSession interface

components/script/dom/webidls/XRSession.webidl

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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// https://immersive-web.github.io/webxr/#xrsession-interface
+
+enum XREnvironmentBlendMode {
+  "opaque",
+  "additive",
+  "alpha-blend",
+};
+
+[SecureContext, Exposed=Window] interface XRSession : EventTarget {
+  // // Attributes
+  // readonly attribute XRSessionMode mode;
+  // readonly attribute XRPresentationContext outputContext;
+  // readonly attribute XREnvironmentBlendMode environmentBlendMode;
+
+  // attribute double depthNear;
+  // attribute double depthFar;
+  // attribute XRLayer baseLayer;
+
+  // // Methods
+  // Promise<XRReferenceSpace> requestReferenceSpace(XRReferenceSpaceType type, optional XRReferenceSpaceOptions options);
+
+  // FrozenArray<XRInputSource> getInputSources();
+
+  // long requestAnimationFrame(XRFrameRequestCallback callback);
+  // void cancelAnimationFrame(long handle);
+
+  // Promise<void> end();
+
+  // // Events
+  // attribute EventHandler onblur;
+  // attribute EventHandler onfocus;
+  // attribute EventHandler onend;
+  // attribute EventHandler onselect;
+  // attribute EventHandler oninputsourceschange;
+  // attribute EventHandler onselectstart;
+  // attribute EventHandler onselectend;
+};