Feat: add global context functions

Add functions like window() and router() to
allow dynamically grabbing global contexts
without have to use the hook variants.

Deprecates the existing hook variants to
discourage folks from adding more noise
to their codebases.

examples/button.rs

@@ -1,18 +0,0 @@
-use dioxus::prelude::*;
-
-fn main() {
-    dioxus_desktop::launch(app);
-}
-
-fn app(cx: Scope) -> Element {
-    cx.render(rsx! {
-        button {
-            onclick: |_| async move {
-                println!("hello, desktop!");
-                tokio::time::sleep(std::time::Duration::from_secs(1)).await;
-                println!("goodbye, desktop!");
-            },
-            "hello, desktop!"
-        }
-    })
-}

examples/compose.rs

@@ -1,7 +1,6 @@
 //! This example shows how to create a popup window and send data back to the parent window.
 
 use dioxus::prelude::*;
-use dioxus_desktop::use_window;
 use futures_util::StreamExt;
 
 fn main() {
@@ -9,7 +8,6 @@ fn main() {
 }
 
 fn app(cx: Scope) -> Element {
-    let window = use_window(cx);
     let emails_sent = use_ref(cx, Vec::new);
 
     let tx = use_coroutine(cx, |mut rx: UnboundedReceiver<String>| {
@@ -34,7 +32,7 @@ fn app(cx: Scope) -> Element {
                     // this returns a weak reference to the other window
                     // Be careful not to keep a strong reference to the other window or it will never be dropped
                     // and the window will never close.
-                    window.new_window(dom, Default::default());
+                    dioxus_desktop::window().new_window(dom, Default::default());
                 },
                 "Click to compose a new email"
             }
@@ -57,7 +55,6 @@ struct ComposeProps {
 
 fn compose(cx: Scope<ComposeProps>) -> Element {
     let user_input = use_state(cx, String::new);
-    let window = use_window(cx);
 
     cx.render(rsx! {
         div {
@@ -66,15 +63,13 @@ fn compose(cx: Scope<ComposeProps>) -> Element {
             button {
                 onclick: move |_| {
                     cx.props.app_tx.send(user_input.get().clone());
-                    window.close();
+                    dioxus_desktop::window().close();
                 },
                 "Click to send"
             }
 
             input {
-                oninput: move |e| {
-                    user_input.set(e.value.clone());
-                },
+                oninput: move |e| user_input.set(e.value.clone()),
                 value: "{user_input}"
             }
         }

examples/crm.rs

@@ -87,8 +87,6 @@ fn ClientAdd(cx: Scope) -> Element {
     let last_name = use_state(cx, String::new);
     let description = use_state(cx, String::new);
 
-    let navigator = use_navigator(cx);
-
     cx.render(rsx! {
         h2 { "Add new Client" }
 
@@ -103,7 +101,7 @@ fn ClientAdd(cx: Scope) -> Element {
                     description: description.to_string(),
                 });
 
-                navigator.push(Route::ClientList {});
+                dioxus_router::router().push(Route::ClientList {});
             },
 
             fieldset {

examples/eval.rs

@@ -5,12 +5,8 @@ fn main() {
 }
 
 fn app(cx: Scope) -> Element {
-    let eval_provider = use_eval(cx);
-
-    let future = use_future(cx, (), |_| {
-        to_owned![eval_provider];
-        async move {
-            let eval = eval_provider(
+    let future = use_future(cx, (), |_| async move {
+        let eval = eval(
             r#"
                 dioxus.send("Hi from JS!");
                 let msg = await dioxus.recv();
@@ -24,7 +20,6 @@ fn app(cx: Scope) -> Element {
         let res = eval.recv().await.unwrap();
         println!("{:?}", eval.await);
         res
-        }
     });
 
     match future.value() {

examples/login_form.rs

@@ -8,8 +8,7 @@ fn main() {
 }
 
 fn app(cx: Scope) -> Element {
-    let onsubmit = move |evt: FormEvent| {
-        cx.spawn(async move {
+    let onsubmit = move |evt: FormEvent| async move {
         let resp = reqwest::Client::new()
             .post("http://localhost:8080/login")
             .form(&[
@@ -28,7 +27,6 @@ fn app(cx: Scope) -> Element {
                 println!("Login failed - you need a login server running on localhost:8080.")
             }
         }
-        });
     };
 
     cx.render(rsx! {

examples/multiwindow.rs

@@ -5,14 +5,12 @@ fn main() {
 }
 
 fn app(cx: Scope) -> Element {
-    let window = dioxus_desktop::use_window(cx);
-
     cx.render(rsx! {
         div {
             button {
                 onclick: move |_| {
                     let dom = VirtualDom::new(popup);
-                    window.new_window(dom, Default::default());
+                    dioxus_desktop::window().new_window(dom, Default::default());
                 },
                 "New Window"
             }

examples/overlay.rs

@@ -1,13 +1,11 @@
 use dioxus::prelude::*;
-use dioxus_desktop::{tao::dpi::PhysicalPosition, use_window, LogicalSize, WindowBuilder};
+use dioxus_desktop::{tao::dpi::PhysicalPosition, LogicalSize, WindowBuilder};
 
 fn main() {
     dioxus_desktop::launch_cfg(app, make_config());
 }
 
 fn app(cx: Scope) -> Element {
-    let window = use_window(cx);
-
     cx.render(rsx! {
         div {
             width: "100%",
@@ -19,7 +17,7 @@ fn app(cx: Scope) -> Element {
                 width: "100%",
                 height: "10px",
                 background_color: "black",
-                onmousedown: move |_| window.drag(),
+                onmousedown: move |_| dioxus_desktop::window().drag(),
             }
 
             "This is an overlay!"

examples/window_zoom.rs

@@ -1,12 +1,10 @@
 use dioxus::prelude::*;
-use dioxus_desktop::use_window;
 
 fn main() {
     dioxus_desktop::launch(app);
 }
 
 fn app(cx: Scope) -> Element {
-    let window = use_window(cx);
     let level = use_state(cx, || 1.0);
 
     cx.render(rsx! {
@@ -16,7 +14,7 @@ fn app(cx: Scope) -> Element {
             oninput: |e| {
                 if let Ok(new_zoom) = e.value.parse::<f64>() {
                     level.set(new_zoom);
-                    window.webview.zoom(new_zoom);
+                    dioxus_desktop::window().webview.zoom(new_zoom);
                 }
             }
         }

packages/desktop/src/desktop_context.rs

@@ -28,6 +28,15 @@ use wry::webview::WebView;
 
 pub type ProxyType = EventLoopProxy<UserWindowEvent>;
 
+/// Get an imperative handle to the current window without using a hook
+///
+/// ## Panics
+///
+/// This function will panic if it is called outside of the context of a Dioxus App.
+pub fn window() -> DesktopContext {
+    dioxus_core::prelude::consume_context().unwrap()
+}
+
 /// Get an imperative handle to the current window
 pub fn use_window(cx: &ScopeState) -> &DesktopContext {
     cx.use_hook(|| cx.consume_context::<DesktopContext>())

packages/desktop/src/lib.rs

@@ -23,7 +23,7 @@ use crate::query::QueryResult;
 pub use cfg::{Config, WindowCloseBehaviour};
 pub use desktop_context::DesktopContext;
 pub use desktop_context::{
-    use_window, use_wry_event_handler, DesktopService, WryEventHandler, WryEventHandlerId,
+    use_window, use_wry_event_handler, window, DesktopService, WryEventHandler, WryEventHandlerId,
 };
 use desktop_context::{EventData, UserWindowEvent, WebviewQueue, WindowEventHandlers};
 use dioxus_core::*;

packages/html/src/eval.rs

@@ -48,6 +48,15 @@ pub fn use_eval(cx: &ScopeState) -> &EvalCreator {
     })
 }
 
+pub fn eval(script: &str) -> Result<UseEval, EvalError> {
+    let eval_provider = dioxus_core::prelude::consume_context::<Rc<dyn EvalProvider>>()
+        .expect("evaluator not provided");
+
+    eval_provider
+        .new_evaluator(script.to_string())
+        .map(UseEval::new)
+}
+
 /// A wrapper around the target platform's evaluator.
 #[derive(Clone)]
 pub struct UseEval {

packages/router/examples/simple_routes.rs

@@ -66,7 +66,6 @@ fn Route2(cx: Scope, user_id: usize) -> Element {
 
 #[component]
 fn Route3(cx: Scope, dynamic: String) -> Element {
-    let navigator = use_navigator(cx);
     let current_route = use_route(cx)?;
     let current_route_str = use_ref(cx, String::new);
     let parsed = Route::from_str(&current_route_str.read());
@@ -78,9 +77,7 @@ fn Route3(cx: Scope, dynamic: String) -> Element {
 
     render! {
         input {
-            oninput: move |evt| {
-                *current_route_str.write() = evt.value.clone();
-            },
+            oninput: move |evt| *current_route_str.write() = evt.value.clone(),
             value: "{current_route_str.read()}"
         }
         "dynamic: {dynamic}"
@@ -89,7 +86,7 @@ fn Route3(cx: Scope, dynamic: String) -> Element {
             "hello world link"
         }
         button {
-            onclick: move |_| { navigator.push("https://www.google.com"); },
+            onclick: move |_| { dioxus_router::router().push("https://www.google.com"); },
             "google link"
         }
         p { "Site Map" }

packages/router/src/contexts/navigator.rs

@@ -1,5 +1,19 @@
 use crate::prelude::{ExternalNavigationFailure, IntoRoutable, RouterContext};
 
+/// Acquire the navigator without subscribing to updates.
+///
+/// Can be called anywhere in the application provided a Router has been initialized.
+///
+/// ## Panics
+///
+/// Panics if there is no router present.
+pub fn navigator() -> Navigator {
+    Navigator(
+        dioxus::core::prelude::consume_context::<RouterContext>()
+            .expect("A router must be present to use navigator"),
+    )
+}
+
 /// A view into the navigation state of a router.
 #[derive(Clone)]
 pub struct Navigator(pub(crate) RouterContext);

packages/router/src/hooks/use_navigator.rs

@@ -49,6 +49,7 @@ use crate::prelude::{Navigator, RouterContext};
 /// # let _ = vdom.rebuild();
 /// ```
 #[must_use]
+#[deprecated = "Prefer acquiring the router directly with `dioxus_router::router()`"]
 pub fn use_navigator(cx: &ScopeState) -> &Navigator {
     &*cx.use_hook(|| {
         let router = cx

packages/router/src/hooks/use_router.rs

@@ -2,7 +2,7 @@ use dioxus::prelude::ScopeState;
 
 use crate::{prelude::RouterContext, utils::use_router_internal::use_router_internal};
 
-#[deprecated = "prefer the use_navigator or use_route functions"]
+#[deprecated = "prefer the `router()` function or `use_route` functions"]
 #[must_use]
 /// A hook that provides access to information about the router.
 pub fn use_router(cx: &ScopeState) -> &RouterContext {
@@ -10,3 +10,8 @@ pub fn use_router(cx: &ScopeState) -> &RouterContext {
         .as_ref()
         .expect("use_route must have access to a router")
 }
+
+/// Aquire the router without subscribing to updates.
+pub fn router() -> RouterContext {
+    dioxus::core::prelude::consume_context().unwrap()
+}

packages/router/src/lib.rs

@@ -53,6 +53,8 @@ pub mod hooks {
     pub use use_navigator::*;
 }
 
+pub use hooks::router;
+
 /// A collection of useful items most applications might need.
 pub mod prelude {
     pub use crate::components::*;