4 files changed, 98 insertions, 1 deletions
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index d2e1876b9d8..3bad24b1b1d 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -534,7 +534,8 @@ unsafe_no_jsmanaged_fields!(
     webxr_api::Registry,
     webxr_api::Session,
     webxr_api::Frame,
-    webxr_api::InputSource
+    webxr_api::InputSource,
+    webxr_api::InputId
 );
 unsafe_no_jsmanaged_fields!(ScriptToConstellationChan);
 unsafe_no_jsmanaged_fields!(InteractiveMetrics);
diff --git a/components/script/dom/fakexrinputcontroller.rs b/components/script/dom/fakexrinputcontroller.rs
new file mode 100644
index 00000000000..274039c2fd2
--- /dev/null
+++ b/components/script/dom/fakexrinputcontroller.rs
@@ -0,0 +1,42 @@
+/* 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/. */
+
+use crate::dom::bindings::codegen::Bindings::FakeXRInputControllerBinding::{self};
+use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
+use crate::dom::bindings::root::DomRoot;
+use crate::dom::globalscope::GlobalScope;
+use dom_struct::dom_struct;
+use ipc_channel::ipc::IpcSender;
+use webxr_api::{InputId, MockDeviceMsg};
+
+#[dom_struct]
+pub struct FakeXRInputController {
+    reflector: Reflector,
+    #[ignore_malloc_size_of = "defined in ipc-channel"]
+    sender: IpcSender<MockDeviceMsg>,
+    #[ignore_malloc_size_of = "defined in webxr-api"]
+    id: InputId,
+}
+
+impl FakeXRInputController {
+    pub fn new_inherited(sender: IpcSender<MockDeviceMsg>, id: InputId) -> FakeXRInputController {
+        FakeXRInputController {
+            reflector: Reflector::new(),
+            sender,
+            id,
+        }
+    }
+
+    pub fn new(
+        global: &GlobalScope,
+        sender: IpcSender<MockDeviceMsg>,
+        id: InputId,
+    ) -> DomRoot<FakeXRInputController> {
+        reflect_dom_object(
+            Box::new(FakeXRInputController::new_inherited(sender, id)),
+            global,
+            FakeXRInputControllerBinding::Wrap,
+        )
+    }
+}
diff --git a/components/script/dom/mod.rs b/components/script/dom/mod.rs
index b8bdc638c17..014a82e8a73 100644
--- a/components/script/dom/mod.rs
+++ b/components/script/dom/mod.rs
@@ -301,6 +301,7 @@ pub mod eventtarget;
 pub mod extendableevent;
 pub mod extendablemessageevent;
 pub mod fakexrdevice;
+pub mod fakexrinputcontroller;
 pub mod file;
 pub mod filelist;
 pub mod filereader;
diff --git a/components/script/dom/webidls/FakeXRInputController.webidl b/components/script/dom/webidls/FakeXRInputController.webidl
new file mode 100644
index 00000000000..b4022d5d404
--- /dev/null
+++ b/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;
+};