1 files changed, 36 insertions, 0 deletions
diff --git a/dom/vr/XRInputSpace.cpp b/dom/vr/XRInputSpace.cpp
new file mode 100644
index 0000000000..548628a079
--- /dev/null
+++ b/dom/vr/XRInputSpace.cpp
@@ -0,0 +1,36 @@
+/* -*- 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/. */
+
+#include "XRInputSpace.h"
+#include "VRDisplayClient.h"
+#include "mozilla/dom/GamepadPoseState.h"
+
+namespace mozilla {
+namespace dom {
+
+XRInputSpace::XRInputSpace(nsIGlobalObject* aParent, XRSession* aSession,
+                           XRNativeOrigin* aNativeOrigin,
+                           int32_t aControllerIndex)
+    : XRSpace(aParent, aSession, aNativeOrigin), mIndex(aControllerIndex) {}
+
+bool XRInputSpace::IsPositionEmulated() const {
+  gfx::VRDisplayClient* display = mSession->GetDisplayClient();
+  if (!display) {
+    // When there are no sensors, the position is considered emulated.
+    return true;
+  }
+  const gfx::VRDisplayInfo& displayInfo = display->GetDisplayInfo();
+  const gfx::VRControllerState& controllerState =
+      displayInfo.mControllerState[mIndex];
+  MOZ_ASSERT(controllerState.controllerName[0] != '\0');
+
+  return (
+      (controllerState.flags & GamepadCapabilityFlags::Cap_PositionEmulated) !=
+      GamepadCapabilityFlags::Cap_None);
+}
+
+}  // namespace dom
+}  // namespace mozilla