wip: memoize dom in the prescence of identical components

packages/router/src/components/link.rs

@@ -0,0 +1,59 @@
+use crate::RouterService;
+use dioxus::Attribute;
+use dioxus_core as dioxus;
+use dioxus_core::prelude::*;
+use dioxus_core_macro::{format_args_f, rsx, Props};
+use dioxus_html as dioxus_elements;
+
+#[derive(Props)]
+pub struct LinkProps<'a> {
+    to: &'a str,
+
+    /// The url that gets pushed to the history stack
+    ///
+    /// You can either put it your own inline method or just autoderive the route using `derive(Routable)`
+    ///
+    /// ```rust, ignore
+    ///
+    /// Link { to: Route::Home, href: |_| "home".to_string() }
+    ///
+    /// // or
+    ///
+    /// Link { to: Route::Home, href: Route::as_url }
+    ///
+    /// ```
+    #[props(default, setter(strip_option))]
+    href: Option<&'a str>,
+
+    #[props(default, setter(strip_option))]
+    class: Option<&'a str>,
+
+    #[props(default, setter(strip_option))]
+    id: Option<&'a str>,
+
+    children: Element<'a>,
+
+    #[props(default)]
+    attributes: Option<&'a [Attribute<'a>]>,
+}
+
+#[allow(non_snake_case)]
+pub fn Link<'a>(cx: Scope<'a, LinkProps<'a>>) -> Element {
+    log::debug!("rendering link {:?}", cx.scope_id());
+    let service = cx.consume_context::<RouterService>()?;
+    cx.render(rsx! {
+        a {
+            href: "{cx.props.to}",
+            class: format_args!("{}", cx.props.class.unwrap_or("")),
+            id: format_args!("{}", cx.props.id.unwrap_or("")),
+
+            prevent_default: "onclick",
+            onclick: move |_| {
+                log::debug!("clicked");
+                service.push_route(cx.props.to.clone());
+            },
+
+            &cx.props.children
+        }
+    })
+}