Add XRInputSourcesChangeEvent

components/script/dom/mod.rs

@@ -565,6 +565,7 @@ pub mod xrframe;
 pub mod xrinputsource;
 pub mod xrinputsourcearray;
 pub mod xrinputsourceevent;
+pub mod xrinputsourceschangeevent;
 pub mod xrpose;
 pub mod xrreferencespace;
 pub mod xrrenderstate;

components/script/dom/webidls/XRInputSourcesChangeEvent.webidl

@@ -0,0 +1,19 @@
+/* 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/#xrinputsourceschangedevent-interface
+
+[SecureContext, Exposed=Window, Pref="dom.webxr.test"]
+interface XRInputSourcesChangeEvent : Event {
+  constructor(DOMString type, XRInputSourcesChangeEventInit eventInitDict);
+  [SameObject] readonly attribute XRSession session;
+  /* [SameObject] */ readonly attribute /* FrozenArray<XRInputSource> */ any added;
+  /* [SameObject] */ readonly attribute /* FrozenArray<XRInputSource> */ any removed;
+};
+
+dictionary XRInputSourcesChangeEventInit : EventInit {
+  required XRSession session;
+  required sequence<XRInputSource> added;
+  required sequence<XRInputSource> removed;
+};

components/script/dom/xrinputsourceschangeevent.rs

@@ -0,0 +1,116 @@
+/* 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::EventBinding::EventBinding::EventMethods;
+use crate::dom::bindings::codegen::Bindings::XRInputSourcesChangeEventBinding::{
+    self, XRInputSourcesChangeEventMethods,
+};
+use crate::dom::bindings::inheritance::Castable;
+use crate::dom::bindings::reflector::{reflect_dom_object, DomObject};
+use crate::dom::bindings::root::{Dom, DomRoot};
+use crate::dom::bindings::str::DOMString;
+use crate::dom::event::Event;
+use crate::dom::globalscope::GlobalScope;
+use crate::dom::window::Window;
+use crate::dom::xrinputsource::XRInputSource;
+use crate::dom::xrsession::XRSession;
+use crate::script_runtime::JSContext;
+use dom_struct::dom_struct;
+use js::conversions::ToJSValConvertible;
+use js::jsapi::Heap;
+use js::jsval::{JSVal, UndefinedValue};
+use servo_atoms::Atom;
+
+#[dom_struct]
+pub struct XRInputSourcesChangeEvent {
+    event: Event,
+    session: Dom<XRSession>,
+    #[ignore_malloc_size_of = "mozjs"]
+    added: Heap<JSVal>,
+    #[ignore_malloc_size_of = "mozjs"]
+    removed: Heap<JSVal>,
+}
+
+impl XRInputSourcesChangeEvent {
+    #[allow(unrooted_must_root)]
+    fn new_inherited(session: &XRSession) -> XRInputSourcesChangeEvent {
+        XRInputSourcesChangeEvent {
+            event: Event::new_inherited(),
+            session: Dom::from_ref(session),
+            added: Heap::default(),
+            removed: Heap::default(),
+        }
+    }
+
+    #[allow(unsafe_code)]
+    pub fn new(
+        global: &GlobalScope,
+        type_: Atom,
+        bubbles: bool,
+        cancelable: bool,
+        session: &XRSession,
+        added: &[DomRoot<XRInputSource>],
+        removed: &[DomRoot<XRInputSource>],
+    ) -> DomRoot<XRInputSourcesChangeEvent> {
+        let changeevent = reflect_dom_object(
+            Box::new(XRInputSourcesChangeEvent::new_inherited(session)),
+            global,
+            XRInputSourcesChangeEventBinding::Wrap,
+        );
+        {
+            let event = changeevent.upcast::<Event>();
+            event.init_event(type_, bubbles, cancelable);
+        }
+
+        let cx = global.get_cx();
+        unsafe {
+            rooted!(in(*cx) let mut added_val = UndefinedValue());
+            rooted!(in(*cx) let mut removed_val  = UndefinedValue());
+            added.to_jsval(*cx, added_val.handle_mut());
+            removed.to_jsval(*cx, removed_val.handle_mut());
+            changeevent.added.set(added_val.get());
+            changeevent.added.set(removed_val.get());
+        }
+
+        changeevent
+    }
+
+    pub fn Constructor(
+        window: &Window,
+        type_: DOMString,
+        init: &XRInputSourcesChangeEventBinding::XRInputSourcesChangeEventInit,
+    ) -> DomRoot<XRInputSourcesChangeEvent> {
+        XRInputSourcesChangeEvent::new(
+            &window.global(),
+            Atom::from(type_),
+            init.parent.bubbles,
+            init.parent.cancelable,
+            &init.session,
+            &*init.added,
+            &*init.removed,
+        )
+    }
+}
+
+impl XRInputSourcesChangeEventMethods for XRInputSourcesChangeEvent {
+    // https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-session
+    fn Session(&self) -> DomRoot<XRSession> {
+        DomRoot::from_ref(&*self.session)
+    }
+
+    // https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-added
+    fn Added(&self, _cx: JSContext) -> JSVal {
+        self.added.get()
+    }
+
+    // https://immersive-web.github.io/webxr/#dom-xrinputsourceschangeevent-removed
+    fn Removed(&self, _cx: JSContext) -> JSVal {
+        self.removed.get()
+    }
+
+    // https://dom.spec.whatwg.org/#dom-event-istrusted
+    fn IsTrusted(&self) -> bool {
+        self.event.IsTrusted()
+    }
+}