Add MediaStreamAudioDestinationNode

components/script/dom/mediastreamaudiodestinationnode.rs

@@ -0,0 +1,67 @@
+/* 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::audiocontext::AudioContext;
+use crate::dom::audionode::AudioNode;
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::AudioNodeOptions;
+use crate::dom::bindings::codegen::Bindings::AudioNodeBinding::{
+    ChannelCountMode, ChannelInterpretation,
+};
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::inheritance::Castable;
+use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::root::DomRoot;
+use crate::dom::window::Window;
+use dom_struct::dom_struct;
+use servo_media::audio::node::AudioNodeInit;
+use servo_media::streams::MediaStreamType;
+use servo_media::ServoMedia;
+
+#[dom_struct]
+pub struct MediaStreamAudioDestinationNode {
+    node: AudioNode,
+}
+
+impl MediaStreamAudioDestinationNode {
+    #[allow(unrooted_must_root)]
+    pub fn new_inherited(
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+    ) -> Fallible<MediaStreamAudioDestinationNode> {
+        let media = ServoMedia::get().unwrap();
+        let (socket, _id) = media.create_stream_and_socket(MediaStreamType::Audio);
+        let node_options = options.unwrap_or(
+            2,
+            ChannelCountMode::Explicit,
+            ChannelInterpretation::Speakers,
+        );
+        let node = AudioNode::new_inherited(
+            AudioNodeInit::MediaStreamDestinationNode(socket),
+            &context.upcast(),
+            node_options,
+            1, // inputs
+            0, // outputs
+        )?;
+        Ok(MediaStreamAudioDestinationNode { node })
+    }
+
+    #[allow(unrooted_must_root)]
+    pub fn new(
+        window: &Window,
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+    ) -> Fallible<DomRoot<MediaStreamAudioDestinationNode>> {
+        let node = MediaStreamAudioDestinationNode::new_inherited(context, options)?;
+        Ok(reflect_dom_object(Box::new(node), window))
+    }
+
+    #[allow(non_snake_case)]
+    pub fn Constructor(
+        window: &Window,
+        context: &AudioContext,
+        options: &AudioNodeOptions,
+    ) -> Fallible<DomRoot<MediaStreamAudioDestinationNode>> {
+        MediaStreamAudioDestinationNode::new(window, context, options)
+    }
+}

components/script/dom/mod.rs

@@ -435,6 +435,7 @@ pub mod mediaquerylist;
 pub mod mediaquerylistevent;
 pub mod mediasession;
 pub mod mediastream;
+pub mod mediastreamaudiodestinationnode;
 pub mod mediastreamtrack;
 pub mod messagechannel;
 pub mod messageevent;

components/script/dom/webidls/MediaStreamAudioDestinationNode.webidl

@@ -0,0 +1,13 @@
+/* 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/. */
+/*
+ * The origin of this IDL file is
+ * https://webaudio.github.io/web-audio-api/#mediastreamaudiodestinationnode
+ */
+
+[Exposed=Window]
+interface MediaStreamAudioDestinationNode : AudioNode {
+  [Throws] constructor (AudioContext context, optional AudioNodeOptions options = {});
+  // readonly attribute MediaStream stream;
+};