Add blank FakeXRInputController interface

components/script/dom/webidls/FakeXRInputController.webidl

@@ -0,0 +1,53 @@
+/* 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-test-api/#fakexrinputcontroller
+
+[Exposed=Window, Pref="dom.webxr.test"]
+interface FakeXRInputController {
+  // void setHandedness(XRHandedness handedness);
+  // void setTargetRayMode(XRTargetRayMode targetRayMode);
+  // void setProfiles(sequence<DOMString> profiles);
+  // void setGripOrigin(FakeXRRigidTransformInit gripOrigin, optional boolean emulatedPosition = false);
+  // void clearGripOrigin();
+  // void setPointerOrigin(FakeXRRigidTransformInit pointerOrigin, optional boolean emulatedPosition = false);
+
+  // void disconnect();
+  // void reconnect();
+
+  // void startSelection();
+  // void endSelection();
+  // void simulateSelect();
+
+  // void setSupportedButtons(sequence<FakeXRButtonStateInit> supportedButtons);
+  // void updateButtonState(FakeXRButtonStateInit buttonState);
+};
+
+dictionary FakeXRInputSourceInit {
+  required XRHandedness handedness;
+  required XRTargetRayMode targetRayMode;
+  required FakeXRRigidTransformInit pointerOrigin;
+  required sequence<DOMString> profiles;
+  boolean selectionStarted = false;
+  boolean selectionClicked = false;
+  sequence<FakeXRButtonStateInit> supportedButtons;
+  FakeXRRigidTransformInit gripOrigin;
+};
+
+enum FakeXRButtonType {
+  "grip",
+  "touchpad",
+  "thumbstick",
+  "optional-button",
+  "optional-thumbstick"
+};
+
+dictionary FakeXRButtonStateInit {
+  required FakeXRButtonType buttonType;
+  required boolean pressed;
+  required boolean touched;
+  required float pressedValue;
+  float xValue = 0.0;
+  float yValue = 0.0;
+};