1 files changed, 56 insertions, 0 deletions
diff --git a/dom/vr/XRSpace.h b/dom/vr/XRSpace.h
new file mode 100644
index 0000000000..a87480857e
--- /dev/null
+++ b/dom/vr/XRSpace.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_XRSpace_h_
+#define mozilla_dom_XRSpace_h_
+
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/WebXRBinding.h"
+#include "XRNativeOrigin.h"
+
+#include "gfxVR.h"
+
+namespace mozilla::dom {
+
+class XRRigidTransform;
+class XRSession;
+
+class XRSpace : public DOMEventTargetHelper {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(XRSpace, DOMEventTargetHelper)
+
+  explicit XRSpace(nsIGlobalObject* aParent, XRSession* aSession,
+                   XRNativeOrigin* aNativeOrigin);
+
+  // WebIDL Boilerplate
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+  XRSession* GetSession() const;
+  XRNativeOrigin* GetNativeOrigin() const;
+
+  // Non webIDL Members
+  gfx::QuaternionDouble GetEffectiveOriginOrientation() const;
+  gfx::PointDouble3D GetEffectiveOriginPosition() const;
+  gfx::Matrix4x4Double GetEffectiveOriginTransform() const;
+  virtual bool IsPositionEmulated() const;
+
+ protected:
+  virtual ~XRSpace() = default;
+
+  RefPtr<XRSession> mSession;
+  RefPtr<XRNativeOrigin> mNativeOrigin;
+
+  // https://immersive-web.github.io/webxr/#xrspace-origin-offset
+  // Origin Offset, represented as a rigid transform
+  gfx::PointDouble3D mOriginOffsetPosition;
+  gfx::QuaternionDouble mOriginOffsetOrientation;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_XRSpace_h_