wip: memoize dom in the prescence of identical components

packages/router/src/components/link.rs

@@ -1,4 +1,4 @@
-use crate::{Routable, RouterService};
+use crate::RouterService;
 use dioxus::Attribute;
 use dioxus_core as dioxus;
 use dioxus_core::prelude::*;
@@ -6,8 +6,8 @@ use dioxus_core_macro::{format_args_f, rsx, Props};
 use dioxus_html as dioxus_elements;
 
 #[derive(Props)]
-pub struct LinkProps<'a, R: Routable> {
-    to: R,
+pub struct LinkProps<'a> {
+    to: &'a str,
 
     /// The url that gets pushed to the history stack
     ///
@@ -28,6 +28,9 @@ pub struct LinkProps<'a, R: Routable> {
     #[props(default, setter(strip_option))]
     class: Option<&'a str>,
 
+    #[props(default, setter(strip_option))]
+    id: Option<&'a str>,
+
     children: Element<'a>,
 
     #[props(default)]
@@ -35,13 +38,21 @@ pub struct LinkProps<'a, R: Routable> {
 }
 
 #[allow(non_snake_case)]
-pub fn Link<'a, R: Routable>(cx: Scope<'a, LinkProps<'a, R>>) -> Element {
-    let service = cx.consume_context::<RouterService<R>>()?;
+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: "#",
+            href: "{cx.props.to}",
             class: format_args!("{}", cx.props.class.unwrap_or("")),
-            onclick: move |_| service.push_route(cx.props.to.clone()),
+            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
         }
     })

packages/router/src/components/route.rs

@@ -0,0 +1,58 @@
+use dioxus_core::Element;
+
+use dioxus_core as dioxus;
+use dioxus_core::prelude::*;
+use dioxus_core_macro::Props;
+use dioxus_core_macro::*;
+use dioxus_html as dioxus_elements;
+
+use crate::{RouteContext, RouterService};
+
+#[derive(Props)]
+pub struct RouteProps<'a> {
+    to: &'a str,
+    children: Element<'a>,
+}
+
+pub fn Route<'a>(cx: Scope<'a, RouteProps<'a>>) -> Element {
+    // now we want to submit
+    let router_root = cx
+        .use_hook(|_| cx.consume_context::<RouterService>())
+        .as_ref()?;
+
+    cx.use_hook(|_| {
+        // create a bigger, better, longer route if one above us exists
+        let total_route = match cx.consume_context::<RouteContext>() {
+            Some(ctx) => format!("{}", ctx.total_route.clone()),
+            None => format!("{}", cx.props.to.clone()),
+        };
+
+        // provide our route context
+        let route_context = cx.provide_context(RouteContext {
+            declared_route: cx.props.to.to_string(),
+            total_route,
+        });
+
+        // submit our rout
+        router_root.register_total_route(route_context.total_route.clone(), cx.scope_id());
+
+        Some(RouteInner {})
+    });
+
+    log::debug!("rendering route {:?}", cx.scope_id());
+
+    if router_root.should_render(cx.scope_id()) {
+        log::debug!("route {:?} produced nodes", cx.scope_id());
+        cx.render(rsx!(&cx.props.children))
+    } else {
+        None
+    }
+}
+
+struct RouteInner {}
+
+impl Drop for RouteInner {
+    fn drop(&mut self) {
+        // todo!()
+    }
+}

packages/router/src/components/router.rs

@@ -0,0 +1,29 @@
+use dioxus_core::Element;
+
+use dioxus_core as dioxus;
+use dioxus_core::prelude::*;
+use dioxus_core_macro::*;
+use dioxus_html as dioxus_elements;
+
+use crate::RouterService;
+
+#[derive(Props)]
+pub struct RouterProps<'a> {
+    children: Element<'a>,
+
+    #[props(default, setter(strip_option))]
+    onchange: Option<&'a Fn(&'a str)>,
+}
+
+pub fn Router<'a>(cx: Scope<'a, RouterProps<'a>>) -> Element {
+    let p = cx.use_hook(|_| {
+        let update = cx.schedule_update_any();
+        cx.provide_context(RouterService::new(update, cx.scope_id()))
+    });
+
+    log::debug!("rendering router {:?}", cx.scope_id());
+
+    cx.render(rsx!(
+        div { &cx.props.children }
+    ))
+}

packages/router/src/hooks/use_route.rs

@@ -0,0 +1,30 @@
+use dioxus_core::ScopeState;
+
+pub struct UseRoute<'a> {
+    cur_route: String,
+    cx: &'a ScopeState,
+}
+
+impl<'a> UseRoute<'a> {
+    /// Parse the query part of the URL
+    pub fn param<T>(&self, param: &str) -> Option<&T> {
+        todo!()
+    }
+
+    pub fn nth_segment(&self, n: usize) -> Option<&str> {
+        todo!()
+    }
+
+    pub fn last_segment(&self) -> Option<&str> {
+        todo!()
+    }
+
+    /// Parse the segments of the URL, using named parameters (defined in your router)
+    pub fn segment<T>(&self, name: &str) -> Option<&T> {
+        todo!()
+    }
+}
+
+pub fn use_route(cx: &ScopeState) -> UseRoute {
+    todo!()
+}

packages/router/src/lib.rs

@@ -7,17 +7,6 @@
 //!
 //! ```rust
 //! fn app(cx: Scope) -> Element {
-//!     let route = use_router(&cx, |svc, path| {
-//!         match path {
-//!             "/about" => Route::About,
-//!             _ => Route::Home,
-//!         }
-//!     });
-//!
-//!     match route {
-//!         Route::Home => rsx!(cx, h1 { "Home" }),
-//!         Route::About => rsx!(cx, h1 { "About" }),
-//!     }
 //! }
 //!
 //!
@@ -35,22 +24,28 @@
 //!
 //!
 
-mod link;
+mod hooks {
+    mod use_route;
+    pub use use_route::*;
+}
+pub use hooks::*;
+
+mod components {
+    mod router;
+    pub use router::*;
+
+    mod route;
+    pub use route::*;
+
+    mod link;
+    pub use link::*;
+}
+pub use components::*;
+
 mod platform;
+mod routecontext;
 mod service;
-mod userouter;
 mod utils;
 
-pub use link::*;
-use serde::{de::DeserializeOwned, Deserialize, Serialize};
+pub use routecontext::*;
 pub use service::*;
-pub use userouter::*;
-
-pub trait Routable:
-    'static + Send + Clone + PartialEq + Serialize + DeserializeOwned + Default
-{
-}
-impl<T> Routable for T where
-    T: 'static + Send + Clone + PartialEq + Serialize + DeserializeOwned + Default
-{
-}

packages/router/src/platform.rs

@@ -1,7 +0,0 @@
-pub fn parse_current_route() -> String {
-    todo!()
-}
-
-pub(crate) fn get_base_route() -> String {
-    todo!()
-}

packages/router/src/platform/mod.rs

@@ -0,0 +1,11 @@
+use url::Url;
+
+pub trait RouterProvider {
+    fn get_current_route(&self) -> String;
+    fn subscribe_to_route_changes(&self, callback: Box<dyn Fn(String)>);
+}
+
+enum RouteChange {
+    LinkTo(String),
+    Back(String),
+}

packages/router/src/routecontext.rs

@@ -0,0 +1,7 @@
+pub struct RouteContext {
+    // "/name/:id"
+    pub declared_route: String,
+
+    // "app/name/:id"
+    pub total_route: String,
+}

packages/router/src/service.rs

@@ -1,18 +1,75 @@
-use crate::Routable;
-use std::{cell::RefCell, rc::Rc};
+use gloo::history::{BrowserHistory, History, HistoryListener};
+use std::{cell::RefCell, collections::HashMap, rc::Rc};
 
-pub struct RouterService<R: Routable> {
-    pub(crate) regen_route: Rc<dyn Fn()>,
-    pub(crate) pending_routes: RefCell<Vec<R>>,
+use dioxus_core::ScopeId;
+
+pub struct RouterService {
+    pub(crate) regen_route: Rc<dyn Fn(ScopeId)>,
+    history: RefCell<BrowserHistory>,
+    registerd_routes: RefCell<RouteSlot>,
+    slots: RefCell<HashMap<ScopeId, String>>,
+    cur_root: RefCell<String>,
+    listener: HistoryListener,
 }
 
-impl<R: Routable> RouterService<R> {
-    pub fn current_path(&self) -> &str {
-        todo!()
+enum RouteSlot {
+    Routes {
+        // the partial route
+        partial: String,
+
+        // the total route
+        total: String,
+
+        // Connections to other routs
+        rest: Vec<RouteSlot>,
+    },
+}
+
+impl RouterService {
+    pub fn new(regen_route: Rc<dyn Fn(ScopeId)>, root_scope: ScopeId) -> Self {
+        let history = BrowserHistory::default();
+        let location = history.location();
+        let path = location.path();
+
+        let regen = Rc::clone(&regen_route);
+        let listener = history.listen(move || {
+            regen(root_scope);
+        });
+
+        Self {
+            registerd_routes: RefCell::new(RouteSlot::Routes {
+                partial: String::from("/"),
+                total: String::from("/"),
+                rest: Vec::new(),
+            }),
+            history: RefCell::new(history),
+            regen_route,
+            slots: Default::default(),
+            cur_root: RefCell::new(path.to_string()),
+            listener,
+        }
     }
-    pub fn push_route(&self, route: R) {
-        self.pending_routes.borrow_mut().push(route);
-        (self.regen_route)();
+
+    pub fn push_route(&self, route: &str) {
+        self.history.borrow_mut().push(route);
+    }
+
+    pub fn register_total_route(&self, route: String, scope: ScopeId) {
+        self.slots.borrow_mut().insert(scope, route);
+    }
+
+    pub fn should_render(&self, scope: ScopeId) -> bool {
+        let location = self.history.borrow().location();
+        let path = location.path();
+
+        let roots = self.slots.borrow();
+
+        let root = roots.get(&scope);
+
+        match root {
+            Some(r) => r == path,
+            None => false,
+        }
     }
 }
 

packages/router/src/userouter.rs

@@ -1,33 +0,0 @@
-use std::{cell::RefCell, rc::Rc};
-
-use crate::{Routable, RouterCfg, RouterService};
-use dioxus_core::ScopeState;
-
-/// Initialize the app's router service and provide access to `Link` components
-pub fn use_router<'a, R: Routable>(cx: &'a ScopeState, _cfg: impl FnOnce(&mut RouterCfg)) -> &'a R {
-    let router = cx.use_hook(|_| {
-        let svc: RouterService<R> = RouterService {
-            regen_route: cx.schedule_update(),
-            pending_routes: RefCell::new(Vec::new()),
-        };
-        let first_path = R::default();
-        cx.provide_context(svc);
-        UseRouterInner {
-            svc: cx.consume_context::<RouterService<R>>().unwrap(),
-            history: vec![first_path],
-        }
-    });
-
-    let mut pending_routes = router.svc.pending_routes.borrow_mut();
-
-    for route in pending_routes.drain(..) {
-        router.history.push(route);
-    }
-
-    router.history.last().unwrap()
-}
-
-struct UseRouterInner<R: Routable> {
-    svc: Rc<RouterService<R>>,
-    history: Vec<R>,
-}