diff --git a/CHANGELOG.md b/CHANGELOG.md index a95080cc..4d3e51b4 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5,6 +5,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ## [Unreleased] +### New Functions 🚀 + +- `use_user_media` + ### New Features 🚀 - Codecs: diff --git a/Cargo.toml b/Cargo.toml index 49474ef4..aa608085 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -73,6 +73,7 @@ features = [ "MediaDevices", "MediaQueryList", "MediaStream", + "MediaStreamConstraints", "MediaStreamTrack", "MessageEvent", "MouseEvent", @@ -146,4 +147,4 @@ wasm_ssr = [] [package.metadata.docs.rs] features = ["math", "docs", "ssr"] rustdoc-args = ["--cfg=web_sys_unstable_apis"] -rustc-args = ["--cfg=web_sys_unstable_apis"] \ No newline at end of file +rustc-args = ["--cfg=web_sys_unstable_apis"] diff --git a/docs/book/src/SUMMARY.md b/docs/book/src/SUMMARY.md index ba3a16ba..502a1a62 100644 --- a/docs/book/src/SUMMARY.md +++ b/docs/book/src/SUMMARY.md @@ -49,6 +49,7 @@ - [use_preferred_contrast](browser/use_preferred_contrast.md) - [use_preferred_dark](browser/use_preferred_dark.md) - [use_service_worker](browser/use_service_worker.md) +- [use_user_media](browser/use_user_media.md) - [use_web_notification](browser/use_web_notification.md) # Sensors diff --git a/docs/book/src/browser/use_user_media.md b/docs/book/src/browser/use_user_media.md new file mode 100644 index 00000000..3e39cca8 --- /dev/null +++ b/docs/book/src/browser/use_user_media.md @@ -0,0 +1,3 @@ +# use_user_media + + diff --git a/examples/Cargo.toml b/examples/Cargo.toml index 4d56bbf9..f4289593 100644 --- a/examples/Cargo.toml +++ b/examples/Cargo.toml @@ -55,6 +55,7 @@ members = [ "use_throttle_fn", "use_timeout_fn", "use_timestamp", + "use_user_media", "use_web_notification", "use_websocket", "use_webtransport", diff --git a/examples/use_user_media/Cargo.toml b/examples/use_user_media/Cargo.toml new file mode 100644 index 00000000..ffd38b8b --- /dev/null +++ b/examples/use_user_media/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "use_user_media" +version = "0.1.0" +edition = "2021" + +[dependencies] +leptos = { version = "0.6", features = ["nightly", "csr"] } +console_error_panic_hook = "0.1" +console_log = "1" +log = "0.4" +leptos-use = { path = "../..", features = ["docs"] } +web-sys = "0.3" + +[dev-dependencies] +wasm-bindgen = "0.2" +wasm-bindgen-test = "0.3.0" diff --git a/examples/use_user_media/README.md b/examples/use_user_media/README.md new file mode 100644 index 00000000..8b470030 --- /dev/null +++ b/examples/use_user_media/README.md @@ -0,0 +1,23 @@ +A simple example for `use_user_media`. + +If you don't have it installed already, install [Trunk](https://trunkrs.dev/) and [Tailwind](https://tailwindcss.com/docs/installation) +as well as the nightly toolchain for Rust and the wasm32-unknown-unknown target: + +```bash +cargo install trunk +npm install -D tailwindcss @tailwindcss/forms +rustup toolchain install nightly +rustup target add wasm32-unknown-unknown +``` + +Then, open two terminals. In the first one, run: + +``` +npx tailwindcss -i ./input.css -o ./style/output.css --watch +``` + +In the second one, run: + +```bash +trunk serve --open +``` diff --git a/examples/use_user_media/Trunk.toml b/examples/use_user_media/Trunk.toml new file mode 100644 index 00000000..3e4be080 --- /dev/null +++ b/examples/use_user_media/Trunk.toml @@ -0,0 +1,2 @@ +[build] +public_url = "/demo/" \ No newline at end of file diff --git a/examples/use_user_media/index.html b/examples/use_user_media/index.html new file mode 100644 index 00000000..ae249a65 --- /dev/null +++ b/examples/use_user_media/index.html @@ -0,0 +1,7 @@ + + + + + + + diff --git a/examples/use_user_media/input.css b/examples/use_user_media/input.css new file mode 100644 index 00000000..bd6213e1 --- /dev/null +++ b/examples/use_user_media/input.css @@ -0,0 +1,3 @@ +@tailwind base; +@tailwind components; +@tailwind utilities; \ No newline at end of file diff --git a/examples/use_user_media/rust-toolchain.toml b/examples/use_user_media/rust-toolchain.toml new file mode 100644 index 00000000..271800cb --- /dev/null +++ b/examples/use_user_media/rust-toolchain.toml @@ -0,0 +1,2 @@ +[toolchain] +channel = "nightly" \ No newline at end of file diff --git a/examples/use_user_media/src/main.rs b/examples/use_user_media/src/main.rs new file mode 100644 index 00000000..54d406cf --- /dev/null +++ b/examples/use_user_media/src/main.rs @@ -0,0 +1,57 @@ +use leptos::*; +use leptos_use::docs::demo_or_body; +use leptos_use::{use_user_media, UseUserMediaReturn}; + +#[component] +fn Demo() -> impl IntoView { + let video_ref = create_node_ref::(); + + let UseUserMediaReturn { + stream, + enabled, + set_enabled, + .. + } = use_user_media(); + + create_effect(move |_| { + match stream.get() { + Some(Ok(s)) => { + video_ref.get().map(|v| v.set_src_object(Some(&s))); + return; + } + Some(Err(e)) => logging::error!("Failed to get media stream: {:?}", e), + None => logging::log!("No stream yet"), + } + + video_ref.get().map(|v| v.set_src_object(None)); + }); + + view! { +
+
+ +
+ +
+ +
+
+ } +} + +fn main() { + _ = console_log::init_with_level(log::Level::Debug); + console_error_panic_hook::set_once(); + + mount_to(demo_or_body(), || { + view! { } + }) +} diff --git a/examples/use_user_media/style/output.css b/examples/use_user_media/style/output.css new file mode 100644 index 00000000..e26a0da4 --- /dev/null +++ b/examples/use_user_media/style/output.css @@ -0,0 +1,350 @@ +[type='text'],input:where(:not([type])),[type='email'],[type='url'],[type='password'],[type='number'],[type='date'],[type='datetime-local'],[type='month'],[type='search'],[type='tel'],[type='time'],[type='week'],[multiple],textarea,select { + -webkit-appearance: none; + -moz-appearance: none; + appearance: none; + background-color: #fff; + border-color: #6b7280; + border-width: 1px; + border-radius: 0px; + padding-top: 0.5rem; + padding-right: 0.75rem; + padding-bottom: 0.5rem; + padding-left: 0.75rem; + font-size: 1rem; + line-height: 1.5rem; + --tw-shadow: 0 0 #0000; +} + +[type='text']:focus, input:where(:not([type])):focus, [type='email']:focus, [type='url']:focus, [type='password']:focus, [type='number']:focus, [type='date']:focus, [type='datetime-local']:focus, [type='month']:focus, [type='search']:focus, [type='tel']:focus, [type='time']:focus, [type='week']:focus, [multiple]:focus, textarea:focus, select:focus { + outline: 2px solid transparent; + outline-offset: 2px; + --tw-ring-inset: var(--tw-empty,/*!*/ /*!*/); + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: #2563eb; + --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); + --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color); + box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow); + border-color: #2563eb; +} + +input::-moz-placeholder, textarea::-moz-placeholder { + color: #6b7280; + opacity: 1; +} + +input::placeholder,textarea::placeholder { + color: #6b7280; + opacity: 1; +} + +::-webkit-datetime-edit-fields-wrapper { + padding: 0; +} + +::-webkit-date-and-time-value { + min-height: 1.5em; + text-align: inherit; +} + +::-webkit-datetime-edit { + display: inline-flex; +} + +::-webkit-datetime-edit,::-webkit-datetime-edit-year-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-meridiem-field { + padding-top: 0; + padding-bottom: 0; +} + +select { + background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e"); + background-position: right 0.5rem center; + background-repeat: no-repeat; + background-size: 1.5em 1.5em; + padding-right: 2.5rem; + -webkit-print-color-adjust: exact; + print-color-adjust: exact; +} + +[multiple],[size]:where(select:not([size="1"])) { + background-image: initial; + background-position: initial; + background-repeat: unset; + background-size: initial; + padding-right: 0.75rem; + -webkit-print-color-adjust: unset; + print-color-adjust: unset; +} + +[type='checkbox'],[type='radio'] { + -webkit-appearance: none; + -moz-appearance: none; + appearance: none; + padding: 0; + -webkit-print-color-adjust: exact; + print-color-adjust: exact; + display: inline-block; + vertical-align: middle; + background-origin: border-box; + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; + flex-shrink: 0; + height: 1rem; + width: 1rem; + color: #2563eb; + background-color: #fff; + border-color: #6b7280; + border-width: 1px; + --tw-shadow: 0 0 #0000; +} + +[type='checkbox'] { + border-radius: 0px; +} + +[type='radio'] { + border-radius: 100%; +} + +[type='checkbox']:focus,[type='radio']:focus { + outline: 2px solid transparent; + outline-offset: 2px; + --tw-ring-inset: var(--tw-empty,/*!*/ /*!*/); + --tw-ring-offset-width: 2px; + --tw-ring-offset-color: #fff; + --tw-ring-color: #2563eb; + --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); + --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color); + box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow); +} + +[type='checkbox']:checked,[type='radio']:checked { + border-color: transparent; + background-color: currentColor; + background-size: 100% 100%; + background-position: center; + background-repeat: no-repeat; +} + +[type='checkbox']:checked { + background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e"); +} + +@media (forced-colors: active) { + [type='checkbox']:checked { + -webkit-appearance: auto; + -moz-appearance: auto; + appearance: auto; + } +} + +[type='radio']:checked { + background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3ccircle cx='8' cy='8' r='3'/%3e%3c/svg%3e"); +} + +@media (forced-colors: active) { + [type='radio']:checked { + -webkit-appearance: auto; + -moz-appearance: auto; + appearance: auto; + } +} + +[type='checkbox']:checked:hover,[type='checkbox']:checked:focus,[type='radio']:checked:hover,[type='radio']:checked:focus { + border-color: transparent; + background-color: currentColor; +} + +[type='checkbox']:indeterminate { + background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 16 16'%3e%3cpath stroke='white' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 8h8'/%3e%3c/svg%3e"); + border-color: transparent; + background-color: currentColor; + background-size: 100% 100%; + background-position: center; + background-repeat: no-repeat; +} + +@media (forced-colors: active) { + [type='checkbox']:indeterminate { + -webkit-appearance: auto; + -moz-appearance: auto; + appearance: auto; + } +} + +[type='checkbox']:indeterminate:hover,[type='checkbox']:indeterminate:focus { + border-color: transparent; + background-color: currentColor; +} + +[type='file'] { + background: unset; + border-color: inherit; + border-width: 0; + border-radius: 0; + padding: 0; + font-size: unset; + line-height: inherit; +} + +[type='file']:focus { + outline: 1px solid ButtonText; + outline: 1px auto -webkit-focus-ring-color; +} + +*, ::before, ::after { + --tw-border-spacing-x: 0; + --tw-border-spacing-y: 0; + --tw-translate-x: 0; + --tw-translate-y: 0; + --tw-rotate: 0; + --tw-skew-x: 0; + --tw-skew-y: 0; + --tw-scale-x: 1; + --tw-scale-y: 1; + --tw-pan-x: ; + --tw-pan-y: ; + --tw-pinch-zoom: ; + --tw-scroll-snap-strictness: proximity; + --tw-gradient-from-position: ; + --tw-gradient-via-position: ; + --tw-gradient-to-position: ; + --tw-ordinal: ; + --tw-slashed-zero: ; + --tw-numeric-figure: ; + --tw-numeric-spacing: ; + --tw-numeric-fraction: ; + --tw-ring-inset: ; + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: rgb(59 130 246 / 0.5); + --tw-ring-offset-shadow: 0 0 #0000; + --tw-ring-shadow: 0 0 #0000; + --tw-shadow: 0 0 #0000; + --tw-shadow-colored: 0 0 #0000; + --tw-blur: ; + --tw-brightness: ; + --tw-contrast: ; + --tw-grayscale: ; + --tw-hue-rotate: ; + --tw-invert: ; + --tw-saturate: ; + --tw-sepia: ; + --tw-drop-shadow: ; + --tw-backdrop-blur: ; + --tw-backdrop-brightness: ; + --tw-backdrop-contrast: ; + --tw-backdrop-grayscale: ; + --tw-backdrop-hue-rotate: ; + --tw-backdrop-invert: ; + --tw-backdrop-opacity: ; + --tw-backdrop-saturate: ; + --tw-backdrop-sepia: ; + --tw-contain-size: ; + --tw-contain-layout: ; + --tw-contain-paint: ; + --tw-contain-style: ; +} + +::backdrop { + --tw-border-spacing-x: 0; + --tw-border-spacing-y: 0; + --tw-translate-x: 0; + --tw-translate-y: 0; + --tw-rotate: 0; + --tw-skew-x: 0; + --tw-skew-y: 0; + --tw-scale-x: 1; + --tw-scale-y: 1; + --tw-pan-x: ; + --tw-pan-y: ; + --tw-pinch-zoom: ; + --tw-scroll-snap-strictness: proximity; + --tw-gradient-from-position: ; + --tw-gradient-via-position: ; + --tw-gradient-to-position: ; + --tw-ordinal: ; + --tw-slashed-zero: ; + --tw-numeric-figure: ; + --tw-numeric-spacing: ; + --tw-numeric-fraction: ; + --tw-ring-inset: ; + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: rgb(59 130 246 / 0.5); + --tw-ring-offset-shadow: 0 0 #0000; + --tw-ring-shadow: 0 0 #0000; + --tw-shadow: 0 0 #0000; + --tw-shadow-colored: 0 0 #0000; + --tw-blur: ; + --tw-brightness: ; + --tw-contrast: ; + --tw-grayscale: ; + --tw-hue-rotate: ; + --tw-invert: ; + --tw-saturate: ; + --tw-sepia: ; + --tw-drop-shadow: ; + --tw-backdrop-blur: ; + --tw-backdrop-brightness: ; + --tw-backdrop-contrast: ; + --tw-backdrop-grayscale: ; + --tw-backdrop-hue-rotate: ; + --tw-backdrop-invert: ; + --tw-backdrop-opacity: ; + --tw-backdrop-saturate: ; + --tw-backdrop-sepia: ; + --tw-contain-size: ; + --tw-contain-layout: ; + --tw-contain-paint: ; + --tw-contain-style: ; +} + +.static { + position: static; +} + +.flex { + display: flex; +} + +.h-96 { + height: 24rem; +} + +.w-auto { + width: auto; +} + +.flex-col { + flex-direction: column; +} + +.gap-4 { + gap: 1rem; +} + +.text-center { + text-align: center; +} + +.text-\[--brand-color\] { + color: var(--brand-color); +} + +.text-green-600 { + --tw-text-opacity: 1; + color: rgb(22 163 74 / var(--tw-text-opacity)); +} + +.opacity-75 { + opacity: 0.75; +} + +@media (prefers-color-scheme: dark) { + .dark\:text-green-500 { + --tw-text-opacity: 1; + color: rgb(34 197 94 / var(--tw-text-opacity)); + } +} \ No newline at end of file diff --git a/examples/use_user_media/tailwind.config.js b/examples/use_user_media/tailwind.config.js new file mode 100644 index 00000000..bc09f5e7 --- /dev/null +++ b/examples/use_user_media/tailwind.config.js @@ -0,0 +1,15 @@ +/** @type {import('tailwindcss').Config} */ +module.exports = { + content: { + files: ["*.html", "./src/**/*.rs", "../../src/docs/**/*.rs"], + }, + theme: { + extend: {}, + }, + corePlugins: { + preflight: false, + }, + plugins: [ + require('@tailwindcss/forms'), + ], +} \ No newline at end of file diff --git a/src/lib.rs b/src/lib.rs index 47c50b0e..41112afd 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -25,6 +25,7 @@ mod is_none; mod is_ok; mod is_some; mod on_click_outside; +mod use_user_media; mod signal_debounced; mod signal_throttled; mod sync_signal; @@ -90,6 +91,7 @@ pub use is_none::*; pub use is_ok::*; pub use is_some::*; pub use on_click_outside::*; +pub use use_user_media::*; pub use signal_debounced::*; pub use signal_throttled::*; pub use sync_signal::*; diff --git a/src/use_user_media.rs b/src/use_user_media.rs new file mode 100644 index 00000000..2336f38e --- /dev/null +++ b/src/use_user_media.rs @@ -0,0 +1,204 @@ +use crate::core::MaybeRwSignal; +use cfg_if::cfg_if; +use default_struct_builder::DefaultBuilder; +use leptos::*; +use wasm_bindgen::{JsCast, JsValue}; + +/// Reactive [`mediaDevices.getUserMedia`](https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia) streaming. +/// +/// ## Demo +/// +/// [Link to Demo](https://github.com/Synphonyte/leptos-use/tree/main/examples/use_user_media) +/// +/// ## Usage +/// +/// ``` +/// # use leptos::*; +/// # use leptos_use::{use_user_media, UseUserMediaReturn}; +/// # +/// # #[component] +/// # fn Demo() -> impl IntoView { +/// let video_ref = create_node_ref::(); +/// +/// let UseUserMediaReturn { stream, start, .. } = use_user_media(); +/// +/// start(); +/// +/// create_effect(move |_| +/// video_ref.get().map(|v| { +/// match stream.get() { +/// Some(Ok(s)) => v.set_src_object(Some(&s)), +/// Some(Err(e)) => logging::error!("Failed to get media stream: {:?}", e), +/// None => logging::log!("No stream yet"), +/// } +/// }) +/// ); +/// +/// view! { } +/// # } +/// ``` +/// +/// ## Server-Side Rendering +/// +/// On the server calls to `start` or any other way to enable the stream will be ignored +/// and the stream will always be `None`. +pub fn use_user_media() -> UseUserMediaReturn { + use_user_media_with_options(UseUserMediaOptions::default()) +} + +/// Version of [`use_user_media`] that takes a `UseUserMediaOptions`. See [`use_user_media`] for how to use. +pub fn use_user_media_with_options( + options: UseUserMediaOptions, +) -> UseUserMediaReturn { + let UseUserMediaOptions { + enabled, + video, + audio, + .. + } = options; + + let (enabled, set_enabled) = enabled.into_signal(); + + let (stream, set_stream) = create_signal(None::>); + + let _start = move || async move { + cfg_if! { if #[cfg(not(feature = "ssr"))] { + if stream.get_untracked().is_some() { + return; + } + + let stream = create_media(video, audio).await; + + set_stream.update(|s| *s = Some(stream)); + } else { + let _ = video; + let _ = audio; + }} + }; + + let _stop = move || { + if let Some(Ok(stream)) = stream.get_untracked() { + for track in stream.get_tracks() { + track.unchecked_ref::().stop(); + } + } + + set_stream.set(None); + }; + + let start = move || { + cfg_if! { if #[cfg(not(feature = "ssr"))] { + spawn_local(async move { + _start().await; + stream.with_untracked(move |stream| { + if let Some(Ok(_)) = stream { + set_enabled.set(true); + } + }); + }); + }} + }; + + let stop = move || { + _stop(); + set_enabled.set(false); + }; + + let _ = watch( + move || enabled.get(), + move |enabled, _, _| { + if *enabled { + spawn_local(async move { + _start().await; + }); + } else { + _stop(); + } + }, + true, + ); + UseUserMediaReturn { + stream: stream.into(), + start, + stop, + enabled, + set_enabled, + } +} + +#[cfg(not(feature = "ssr"))] +async fn create_media(video: bool, audio: bool) -> Result { + use crate::js_fut; + use crate::use_window::use_window; + + let media = use_window() + .navigator() + .ok_or_else(|| JsValue::from_str("Failed to access window.navigator")) + .and_then(|n| n.media_devices())?; + + let mut constraints = web_sys::MediaStreamConstraints::new(); + if video { + constraints.video(&JsValue::from(true)); + } + if audio { + constraints.audio(&JsValue::from(true)); + } + + let promise = media.get_user_media_with_constraints(&constraints)?; + let res = js_fut!(promise).await?; + + Ok::<_, JsValue>(web_sys::MediaStream::unchecked_from_js(res)) +} + +/// Options for [`use_user_media_with_options`]. +/// Either or both constraints must be specified. +/// If the browser cannot find all media tracks with the specified types that meet the constraints given, +/// then the returned promise is rejected with `NotFoundError` +#[derive(DefaultBuilder, Clone, Copy, Debug)] +pub struct UseUserMediaOptions { + /// If the stream is enabled. Defaults to `false`. + enabled: MaybeRwSignal, + /// Constraint parameter describing video media type requested + /// The default value is `false`. + video: bool, + /// Constraint parameter describing audio media type requested + /// The default value is `false`. + audio: bool, +} + +impl Default for UseUserMediaOptions { + fn default() -> Self { + Self { + enabled: false.into(), + video: true, + audio: false, + } + } +} + +/// Return type of [`use_user_media`]. +#[derive(Clone)] +pub struct UseUserMediaReturn +where + StartFn: Fn() + Clone, + StopFn: Fn() + Clone, +{ + /// The current [`MediaStream`](https://developer.mozilla.org/en-US/docs/Web/API/MediaStream) if it exists. + /// Initially this is `None` until `start` resolved successfully. + /// In case the stream couldn't be started, for example because the user didn't grant permission, + /// this has the value `Some(Err(...))`. + pub stream: Signal>>, + + /// Starts the screen streaming. Triggers the ask for permission if not already granted. + pub start: StartFn, + + /// Stops the screen streaming + pub stop: StopFn, + + /// A value of `true` indicates that the returned [`MediaStream`](https://developer.mozilla.org/en-US/docs/Web/API/MediaStream) + /// has resolved successfully and thus the stream is enabled. + pub enabled: Signal, + + /// A value of `true` is the same as calling `start()` whereas `false` is the same as calling `stop()`. + pub set_enabled: WriteSignal, +}