Merge remote-tracking branch 'upstream/master' into feat-cow-infra

`tests/wpt/web-platform-tests/html/browsers/origin/cross-origin-objects/cross-origin-objects.html`
was reverted to the upstream version.

1 files changed, 76 insertions, 0 deletions

diff --git a/components/script/dom/mediaelementaudiosourcenode.rs b/components/script/dom/mediaelementaudiosourcenode.rs
new file mode 100644
index 00000000000..29737fc3bc0
--- /dev/null
+++ b/components/script/dom/mediaelementaudiosourcenode.rs
@@ -0,0 +1,76 @@
+/* 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::MediaElementAudioSourceNodeBinding::MediaElementAudioSourceNodeMethods;
+use crate::dom::bindings::codegen::Bindings::MediaElementAudioSourceNodeBinding::MediaElementAudioSourceOptions;
+use crate::dom::bindings::error::Fallible;
+use crate::dom::bindings::reflector::reflect_dom_object;
+use crate::dom::bindings::root::{Dom, DomRoot};
+use crate::dom::htmlmediaelement::HTMLMediaElement;
+use crate::dom::window::Window;
+use dom_struct::dom_struct;
+use servo_media::audio::media_element_source_node::MediaElementSourceNodeMessage;
+use servo_media::audio::node::{AudioNodeInit, AudioNodeMessage};
+use std::sync::mpsc;
+
+#[dom_struct]
+pub struct MediaElementAudioSourceNode {
+    node: AudioNode,
+    media_element: Dom<HTMLMediaElement>,
+}
+
+impl MediaElementAudioSourceNode {
+    #[allow(unrooted_must_root)]
+    fn new_inherited(
+        context: &AudioContext,
+        media_element: &HTMLMediaElement,
+    ) -> Fallible<MediaElementAudioSourceNode> {
+        let node = AudioNode::new_inherited(
+            AudioNodeInit::MediaElementSourceNode,
+            &*context.base(),
+            Default::default(),
+            0,
+            1,
+        )?;
+        let (sender, receiver) = mpsc::channel();
+        node.message(AudioNodeMessage::MediaElementSourceNode(
+            MediaElementSourceNodeMessage::GetAudioRenderer(sender),
+        ));
+        let audio_renderer = receiver.recv().unwrap();
+        media_element.set_audio_renderer(audio_renderer);
+        let media_element = Dom::from_ref(media_element);
+        Ok(MediaElementAudioSourceNode {
+            node,
+            media_element,
+        })
+    }
+
+    #[allow(unrooted_must_root)]
+    pub fn new(
+        window: &Window,
+        context: &AudioContext,
+        media_element: &HTMLMediaElement,
+    ) -> Fallible<DomRoot<MediaElementAudioSourceNode>> {
+        let node = MediaElementAudioSourceNode::new_inherited(context, media_element)?;
+        Ok(reflect_dom_object(Box::new(node), window))
+    }
+
+    #[allow(non_snake_case)]
+    pub fn Constructor(
+        window: &Window,
+        context: &AudioContext,
+        options: &MediaElementAudioSourceOptions,
+    ) -> Fallible<DomRoot<MediaElementAudioSourceNode>> {
+        MediaElementAudioSourceNode::new(window, context, &*options.mediaElement)
+    }
+}
+
+impl MediaElementAudioSourceNodeMethods for MediaElementAudioSourceNode {
+    /// https://webaudio.github.io/web-audio-api/#dom-mediaelementaudiosourcenode-mediaelement
+    fn MediaElement(&self) -> DomRoot<HTMLMediaElement> {
+        DomRoot::from_ref(&*self.media_element)
+    }
+}