3 files changed, 59 insertions, 0 deletions
diff --git a/components/script/dom/mediastream.rs b/components/script/dom/mediastream.rs
new file mode 100644
index 00000000000..2641a9929bb
--- /dev/null
+++ b/components/script/dom/mediastream.rs
@@ -0,0 +1,34 @@
+/* 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::MediaStreamBinding;
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::reflector::DomObject;
+use crate::dom::bindings::root::DomRoot;
+use crate::dom::eventtarget::EventTarget;
+use crate::dom::globalscope::GlobalScope;
+use crate::dom::window::Window;
+use dom_struct::dom_struct;
+
+#[dom_struct]
+pub struct MediaStream {
+    eventtarget: EventTarget,
+}
+
+impl MediaStream {
+    pub fn new_inherited() -> MediaStream {
+        MediaStream {
+            eventtarget: EventTarget::new_inherited(),
+        }
+    }
+
+    pub fn new(global: &GlobalScope) -> DomRoot<MediaStream> {
+        reflect_dom_object(
+            Box::new(MediaStream::new_inherited()),
+            global,
+            MediaStreamBinding::Wrap,
+        )
+    }
+}
diff --git a/components/script/dom/mod.rs b/components/script/dom/mod.rs
index 6d7dbcc92ab..a965b6893bc 100644
--- a/components/script/dom/mod.rs
+++ b/components/script/dom/mod.rs
@@ -394,6 +394,7 @@ pub mod mediaerror;
 pub mod medialist;
 pub mod mediaquerylist;
 pub mod mediaquerylistevent;
+pub mod mediastream;
 pub mod messageevent;
 pub mod mimetype;
 pub mod mimetypearray;
diff --git a/components/script/dom/webidls/MediaStream.webidl b/components/script/dom/webidls/MediaStream.webidl
new file mode 100644
index 00000000000..0257e3c6061
--- /dev/null
+++ b/components/script/dom/webidls/MediaStream.webidl
@@ -0,0 +1,24 @@
+/* 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/mediacapture-main/#dom-mediastream
+
+// [Exposed=Window,
+//  Constructor,
+//  Constructor(MediaStream stream),
+//  Constructor(sequence<MediaStreamTrack> tracks)]
+[Exposed=Window, Pref="dom.webrtc.enabled"]
+interface MediaStream : EventTarget {
+    // readonly        attribute DOMString id;
+    // sequence<MediaStreamTrack> getAudioTracks();
+    // sequence<MediaStreamTrack> getVideoTracks();
+    // sequence<MediaStreamTrack> getTracks();
+    // MediaStreamTrack? getTrackById(DOMString trackId);
+    // void addTrack(MediaStreamTrack track);
+    // void removeTrack(MediaStreamTrack track);
+    // MediaStream clone();
+    // readonly        attribute boolean active;
+    //                 attribute EventHandler onaddtrack;
+    //                 attribute EventHandler onremovetrack;
+};