Add stream types to tracks, add MediaStreamTrack.id and MediaStreamTrack.kind

components/script/dom/bindings/trace.rs

@@ -105,6 +105,7 @@ use servo_media::audio::panner_node::{DistanceModel, PanningModel};
 use servo_media::audio::param::ParamType;
 use servo_media::player::Player;
 use servo_media::streams::registry::MediaStreamId;
+use servo_media::streams::MediaStreamType;
 use servo_media::webrtc::WebRtcController;
 use servo_url::{ImmutableOrigin, MutableOrigin, ServoUrl};
 use smallvec::SmallVec;
@@ -490,7 +491,7 @@ unsafe_no_jsmanaged_fields!(NodeId);
 unsafe_no_jsmanaged_fields!(AnalysisEngine, DistanceModel, PanningModel, ParamType);
 unsafe_no_jsmanaged_fields!(dyn Player);
 unsafe_no_jsmanaged_fields!(WebRtcController);
-unsafe_no_jsmanaged_fields!(MediaStreamId);
+unsafe_no_jsmanaged_fields!(MediaStreamId, MediaStreamType);
 unsafe_no_jsmanaged_fields!(Mutex<MediaFrameRenderer>);
 unsafe_no_jsmanaged_fields!(RenderApiSender);
 unsafe_no_jsmanaged_fields!(ResourceFetchTiming);

components/script/dom/mediadevices.rs

@@ -18,6 +18,7 @@ use crate::dom::mediastreamtrack::MediaStreamTrack;
 use crate::dom::promise::Promise;
 use dom_struct::dom_struct;
 use servo_media::streams::capture::{Constrain, ConstrainRange, MediaTrackConstraintSet};
+use servo_media::streams::MediaStreamType;
 use servo_media::ServoMedia;
 use std::rc::Rc;
 
@@ -55,13 +56,13 @@ impl MediaDevicesMethods for MediaDevices {
         let stream = MediaStream::new(&self.global());
         if let Some(constraints) = convert_constraints(&constraints.audio) {
             if let Some(audio) = media.create_audioinput_stream(constraints) {
-                let track = MediaStreamTrack::new(&self.global(), audio);
+                let track = MediaStreamTrack::new(&self.global(), audio, MediaStreamType::Audio);
                 stream.add_track(&track);
             }
         }
         if let Some(constraints) = convert_constraints(&constraints.video) {
             if let Some(video) = media.create_videoinput_stream(constraints) {
-                let track = MediaStreamTrack::new(&self.global(), video);
+                let track = MediaStreamTrack::new(&self.global(), video, MediaStreamType::Video);
                 stream.add_track(&track);
             }
         }

components/script/dom/mediastreamtrack.rs

@@ -2,32 +2,43 @@
  * 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::MediaStreamTrackBinding;
+use crate::dom::bindings::codegen::Bindings::MediaStreamTrackBinding::{
+    self, MediaStreamTrackMethods,
+};
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
+use crate::dom::bindings::str::DOMString;
 use crate::dom::eventtarget::EventTarget;
 use crate::dom::globalscope::GlobalScope;
 use dom_struct::dom_struct;
 use servo_media::streams::registry::MediaStreamId;
+use servo_media::streams::MediaStreamType;
 
 #[dom_struct]
 pub struct MediaStreamTrack {
     eventtarget: EventTarget,
     #[ignore_malloc_size_of = "defined in servo-media"]
     id: MediaStreamId,
+    #[ignore_malloc_size_of = "defined in servo-media"]
+    ty: MediaStreamType,
 }
 
 impl MediaStreamTrack {
-    pub fn new_inherited(id: MediaStreamId) -> MediaStreamTrack {
+    pub fn new_inherited(id: MediaStreamId, ty: MediaStreamType) -> MediaStreamTrack {
         MediaStreamTrack {
             eventtarget: EventTarget::new_inherited(),
             id,
+            ty,
         }
     }
 
-    pub fn new(global: &GlobalScope, id: MediaStreamId) -> DomRoot<MediaStreamTrack> {
+    pub fn new(
+        global: &GlobalScope,
+        id: MediaStreamId,
+        ty: MediaStreamType,
+    ) -> DomRoot<MediaStreamTrack> {
         reflect_dom_object(
-            Box::new(MediaStreamTrack::new_inherited(id)),
+            Box::new(MediaStreamTrack::new_inherited(id, ty)),
             global,
             MediaStreamTrackBinding::Wrap,
         )
@@ -36,4 +47,23 @@ impl MediaStreamTrack {
     pub fn id(&self) -> MediaStreamId {
         self.id
     }
+
+    pub fn ty(&self) -> MediaStreamType {
+        self.ty
+    }
+}
+
+impl MediaStreamTrackMethods for MediaStreamTrack {
+    /// https://w3c.github.io/mediacapture-main/#dom-mediastreamtrack-kind
+    fn Kind(&self) -> DOMString {
+        match self.ty {
+            MediaStreamType::Video => "video".into(),
+            MediaStreamType::Audio => "audio".into(),
+        }
+    }
+
+    /// https://w3c.github.io/mediacapture-main/#dom-mediastreamtrack-id
+    fn Id(&self) -> DOMString {
+        self.id.id().to_string().into()
+    }
 }

components/script/dom/webidls/MediaStreamTrack.webidl

@@ -6,8 +6,8 @@
 
 [Exposed=Window, Pref="dom.webrtc.enabled"]
 interface MediaStreamTrack : EventTarget {
-    // readonly        attribute DOMString kind;
+    readonly        attribute DOMString kind;
-    // readonly        attribute DOMString id;
+    readonly        attribute DOMString id;
     // readonly        attribute DOMString label;
     //                 attribute boolean enabled;
     // readonly        attribute boolean muted;