feat: ✨ hear from microphone

src/gui.rs

@@ -0,0 +1,58 @@
+use leptos::{
+    IntoView, ev,
+    html::{ElementChild, button},
+    logging::log,
+    prelude::{OnAttribute, Read, Show, ShowProps, ToChildren},
+    server::LocalResource,
+    task::spawn_local,
+};
+use wasm_bindgen_futures::JsFuture;
+use web_sys::{
+    HtmlAudioElement, MediaStream, MediaStreamConstraints,
+    wasm_bindgen::{JsCast, JsValue},
+    window,
+};
+
+pub fn app() -> impl IntoView {
+    let audio_stream = LocalResource::new(|| media());
+    let props = ShowProps::builder()
+        .when(move || audio_stream.read().is_some())
+        .children(ToChildren::to_children(move || {
+            let audio_element = HtmlAudioElement::new().unwrap();
+            let audio_stream = audio_stream.read();
+            let audio_stream = audio_stream.as_deref();
+            audio_element.set_src_object(audio_stream);
+            button()
+                .on(ev::click, move |_| match audio_element.play() {
+                    Ok(audio_element_play_promise) => {
+                        log!("{}", "Play will");
+                        spawn_local(async move {
+                            JsFuture::from(audio_element_play_promise).await.ok();
+                        });
+                        log!("{}", "Play must");
+                    }
+                    Err(err_val) => log!("{:#?}", err_val),
+                })
+                .child("Happy Button")
+                .into_view()
+        }))
+        .fallback(|| button().child("Sad Button"))
+        .build();
+    Show(props)
+}
+
+async fn media() -> MediaStream {
+    let media_devices = window().unwrap().navigator().media_devices().unwrap();
+    let constraints = MediaStreamConstraints::new();
+    constraints.set_audio(&JsValue::TRUE);
+    let media_stream_promise = media_devices
+        .get_user_media_with_constraints(&constraints)
+        .unwrap();
+    let media_stream = JsFuture::from(media_stream_promise)
+        .await
+        .unwrap()
+        .dyn_into::<MediaStream>()
+        .unwrap();
+    let audio_tracks = media_stream.get_audio_tracks();
+    MediaStream::new_with_tracks(&audio_tracks).unwrap()
+}