Move VR interface to XR

The WebVR spec no longer has a navigator.vr, but there is a navigator.XR in the XR spec. Instead of duplicating work I've combined the two.

components/script/dom/mod.rs

@@ -479,7 +479,6 @@ pub mod validation;
 pub mod validitystate;
 pub mod values;
 pub mod virtualmethods;
-pub mod vr;
 pub mod vrdisplay;
 pub mod vrdisplaycapabilities;
 pub mod vrdisplayevent;
@@ -518,3 +517,4 @@ pub mod xmldocument;
 pub mod xmlhttprequest;
 pub mod xmlhttprequesteventtarget;
 pub mod xmlhttprequestupload;
+pub mod xr;

components/script/dom/navigator.rs

@@ -4,7 +4,6 @@
 
 use crate::dom::bindings::codegen::Bindings::NavigatorBinding;
 use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorMethods;
-use crate::dom::bindings::codegen::Bindings::VRBinding::VRBinding::VRMethods;
 use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::{DomRoot, MutNullableDom};
 use crate::dom::bindings::str::DOMString;
@@ -16,8 +15,8 @@ use crate::dom::permissions::Permissions;
 use crate::dom::pluginarray::PluginArray;
 use crate::dom::promise::Promise;
 use crate::dom::serviceworkercontainer::ServiceWorkerContainer;
-use crate::dom::vr::VR;
 use crate::dom::window::Window;
+use crate::dom::xr::XR;
 use dom_struct::dom_struct;
 use std::rc::Rc;
 
@@ -28,7 +27,7 @@ pub struct Navigator {
     plugins: MutNullableDom<PluginArray>,
     mime_types: MutNullableDom<MimeTypeArray>,
     service_worker: MutNullableDom<ServiceWorkerContainer>,
-    vr: MutNullableDom<VR>,
+    xr: MutNullableDom<XR>,
     gamepads: MutNullableDom<GamepadList>,
     permissions: MutNullableDom<Permissions>,
 }
@@ -41,7 +40,7 @@ impl Navigator {
             plugins: Default::default(),
             mime_types: Default::default(),
             service_worker: Default::default(),
-            vr: Default::default(),
+            xr: Default::default(),
             gamepads: Default::default(),
             permissions: Default::default(),
         }
@@ -135,7 +134,7 @@ impl NavigatorMethods for Navigator {
             .gamepads
             .or_init(|| GamepadList::new(&self.global(), &[]));
 
-        let vr_gamepads = self.Vr().get_gamepads();
+        let vr_gamepads = self.Xr().get_gamepads();
         root.add_if_not_exists(&vr_gamepads);
         // TODO: Add not VR related gamepads
         root
@@ -149,12 +148,10 @@ impl NavigatorMethods for Navigator {
     // https://w3c.github.io/webvr/spec/1.1/#navigator-getvrdisplays-attribute
     #[allow(unrooted_must_root)]
     fn GetVRDisplays(&self) -> Rc<Promise> {
-        self.Vr().GetDisplays()
+        self.Xr().get_displays()
     }
-}
 
-impl Navigator {
-    pub fn Vr(&self) -> DomRoot<VR> {
-        self.vr.or_init(|| VR::new(&self.global()))
+    fn Xr(&self) -> DomRoot<XR> {
+        self.xr.or_init(|| XR::new(&self.global()))
     }
 }

components/script/dom/webidls/VR.webidl

@@ -1,11 +0,0 @@
-/* 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://w3c.github.io/webvr/#interface-navigator
-[NoInterfaceObject]
-interface VR {
-  [Pref="dom.webvr.enabled"]
-  Promise<sequence<VRDisplay>> getDisplays();
-  //readonly attribute FrozenArray<VRDisplay> activeVRDisplays;
-};

components/script/dom/webidls/XR.webidl

@@ -0,0 +1,30 @@
+/* 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/#xr-interface
+[SecureContext, Exposed=Window]
+interface XR: EventTarget {
+  // Methods
+  // Promise<void> supportsSessionMode(XRSessionMode mode);
+  // Promise<XRSession> requestSession(optional XRSessionCreationOptions parameters);
+
+  // Events
+  // attribute EventHandler ondevicechange;
+};
+
+[SecureContext]
+partial interface Navigator {
+  [SameObject, Pref="dom.webvr.enabled"] readonly attribute XR xr;
+};
+
+enum XRSessionMode {
+  "inline",
+  "immersive-vr",
+  "immersive-ar"
+};
+
+dictionary XRSessionCreationOptions {
+  XRSessionMode mode = "inline";
+  // XRPresentationContext outputContext;
+};

components/script/dom/xr.rs

@@ -3,12 +3,11 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use crate::dom::bindings::cell::DomRefCell;
-use crate::dom::bindings::codegen::Bindings::VRBinding;
-use crate::dom::bindings::codegen::Bindings::VRBinding::VRMethods;
+use crate::dom::bindings::codegen::Bindings::XRBinding;
 use crate::dom::bindings::codegen::Bindings::VRDisplayBinding::VRDisplayMethods;
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::inheritance::Castable;
-use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
 use crate::dom::bindings::root::{Dom, DomRoot};
 use crate::dom::event::Event;
 use crate::dom::eventtarget::EventTarget;
@@ -26,38 +25,37 @@ use webvr_traits::{WebVRDisplayData, WebVRDisplayEvent, WebVREvent, WebVRMsg};
 use webvr_traits::{WebVRGamepadData, WebVRGamepadEvent, WebVRGamepadState};
 
 #[dom_struct]
-pub struct VR {
-    reflector_: Reflector,
+pub struct XR {
+    eventtarget: EventTarget,
     displays: DomRefCell<Vec<Dom<VRDisplay>>>,
     gamepads: DomRefCell<Vec<Dom<Gamepad>>>,
 }
 
-impl VR {
-    fn new_inherited() -> VR {
-        VR {
-            reflector_: Reflector::new(),
+impl XR {
+    fn new_inherited() -> XR {
+        XR {
+            eventtarget: EventTarget::new_inherited(),
             displays: DomRefCell::new(Vec::new()),
             gamepads: DomRefCell::new(Vec::new()),
         }
     }
 
-    pub fn new(global: &GlobalScope) -> DomRoot<VR> {
-        let root = reflect_dom_object(Box::new(VR::new_inherited()), global, VRBinding::Wrap);
+    pub fn new(global: &GlobalScope) -> DomRoot<XR> {
+        let root = reflect_dom_object(Box::new(XR::new_inherited()), global, XRBinding::Wrap);
         root.register();
         root
     }
 }
 
-impl Drop for VR {
+impl Drop for XR {
     fn drop(&mut self) {
         self.unregister();
     }
 }
 
-impl VRMethods for VR {
+impl XR {
     #[allow(unrooted_must_root)]
-    // https://w3c.github.io/webvr/#interface-navigator
-    fn GetDisplays(&self) -> Rc<Promise> {
+    pub fn get_displays(&self) -> Rc<Promise> {
         let promise = Promise::new(&self.global());
 
         if let Some(webvr_thread) = self.webvr_thread() {
@@ -93,9 +91,7 @@ impl VRMethods for VR {
 
         promise
     }
-}
 
-impl VR {
     fn webvr_thread(&self) -> Option<IpcSender<WebVRMsg>> {
         self.global().as_window().webvr_thread()
     }
@@ -209,7 +205,7 @@ impl VR {
 }
 
 // Gamepad
-impl VR {
+impl XR {
     fn find_gamepad(&self, gamepad_id: u32) -> Option<DomRoot<Gamepad>> {
         self.gamepads
             .borrow()

components/script/script_thread.rs

@@ -26,6 +26,7 @@ use crate::dom::bindings::codegen::Bindings::DocumentBinding::{
     DocumentMethods, DocumentReadyState,
 };
 use crate::dom::bindings::codegen::Bindings::EventBinding::EventInit;
+use crate::dom::bindings::codegen::Bindings::NavigatorBinding::NavigatorMethods;
 use crate::dom::bindings::codegen::Bindings::TransitionEventBinding::TransitionEventInit;
 use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
 use crate::dom::bindings::conversions::{
@@ -3278,8 +3279,8 @@ impl ScriptThread {
     fn handle_webvr_events(&self, pipeline_id: PipelineId, events: Vec<WebVREvent>) {
         let window = self.documents.borrow().find_window(pipeline_id);
         if let Some(window) = window {
-            let vr = window.Navigator().Vr();
-            vr.handle_webvr_events(events);
+            let xr = window.Navigator().Xr();
+            xr.handle_webvr_events(events);
         }
     }