diff --git a/packages/fullstack/examples/axum-hello-world/src/main.rs b/packages/fullstack/examples/axum-hello-world/src/main.rs index 8f1d3c8c6..64e5b44a0 100644 --- a/packages/fullstack/examples/axum-hello-world/src/main.rs +++ b/packages/fullstack/examples/axum-hello-world/src/main.rs @@ -24,6 +24,7 @@ fn app(cx: Scope) -> Element { let mut count = use_state(cx, || 0); let text = use_state(cx, || "...".to_string()); + let eval = use_eval(cx); cx.render(rsx! { div { diff --git a/packages/fullstack/src/render.rs b/packages/fullstack/src/render.rs index cda41f82c..886a5bd99 100644 --- a/packages/fullstack/src/render.rs +++ b/packages/fullstack/src/render.rs @@ -45,6 +45,8 @@ impl SsrRendererPool { .expect("couldn't spawn runtime") .block_on(async move { let mut vdom = VirtualDom::new_with_props(component, props); + // Make sure the evaluator is initialized + dioxus_ssr::eval::init_eval(vdom.base_scope()); let mut to = WriteBuffer { buffer: Vec::new() }; // before polling the future, we need to set the context let prev_context = diff --git a/packages/ssr/Cargo.toml b/packages/ssr/Cargo.toml index f6376452d..71f5b26a0 100644 --- a/packages/ssr/Cargo.toml +++ b/packages/ssr/Cargo.toml @@ -10,6 +10,7 @@ keywords = ["dom", "ui", "gui", "react", "ssr"] [dependencies] dioxus-core = { workspace = true, features = ["serialize"] } +dioxus-html = { workspace = true } askama_escape = "0.10.3" thiserror = "1.0.23" rustc-hash = "1.1.0" @@ -17,6 +18,8 @@ lru = "0.10.0" tracing = { workspace = true } http = "0.2.9" tokio = { version = "1.28", features = ["full"], optional = true } +async-trait = "0.1.58" +serde_json = { version = "1.0" } [dev-dependencies] dioxus = { workspace = true } diff --git a/packages/ssr/src/eval.rs b/packages/ssr/src/eval.rs new file mode 100644 index 000000000..2ab74f4e1 --- /dev/null +++ b/packages/ssr/src/eval.rs @@ -0,0 +1,42 @@ +use async_trait::async_trait; +use dioxus_core::ScopeState; +use dioxus_html::prelude::{EvalError, EvalProvider, Evaluator}; +use std::rc::Rc; + +/// Provides the SSREvalProvider through [`cx.provide_context`]. +pub fn init_eval(cx: &ScopeState) { + let provider: Rc = Rc::new(SSREvalProvider {}); + cx.provide_context(provider); +} + +/// Reprents the ssr-target's provider of evaluators. +pub struct SSREvalProvider; +impl EvalProvider for SSREvalProvider { + fn new_evaluator(&self, _: String) -> Result, EvalError> { + Ok(Rc::new(SSREvaluator) as Rc) + } +} + +/// Represents a ssr-target's JavaScript evaluator. +pub struct SSREvaluator; + +// In ssr rendering we never run or resolve evals. +#[async_trait(?Send)] +impl Evaluator for SSREvaluator { + /// Runs the evaluated JavaScript. + async fn join(&self) -> Result { + std::future::pending::<()>().await; + unreachable!() + } + + /// Sends a message to the evaluated JavaScript. + fn send(&self, _el: serde_json::Value) -> Result<(), EvalError> { + Ok(()) + } + + /// Gets an UnboundedReceiver to receive messages from the evaluated JavaScript. + async fn recv(&self) -> Result { + std::future::pending::<()>().await; + unreachable!() + } +} diff --git a/packages/ssr/src/incremental.rs b/packages/ssr/src/incremental.rs index c3bb25314..34ffa3443 100644 --- a/packages/ssr/src/incremental.rs +++ b/packages/ssr/src/incremental.rs @@ -81,6 +81,7 @@ impl IncrementalRenderer { let mut html_buffer = WriteBuffer { buffer: Vec::new() }; { let mut vdom = VirtualDom::new_with_props(comp, props); + crate::eval::init_eval(vdom.base_scope()); rebuild_with(&mut vdom).await; renderer.render_before_body(&mut *html_buffer)?; diff --git a/packages/ssr/src/lib.rs b/packages/ssr/src/lib.rs index 6794d1f14..fdc0e9333 100644 --- a/packages/ssr/src/lib.rs +++ b/packages/ssr/src/lib.rs @@ -10,6 +10,7 @@ pub mod incremental; #[cfg(feature = "incremental")] mod incremental_cfg; +pub mod eval; pub mod renderer; pub mod template; @@ -42,6 +43,7 @@ pub fn render_lazy(f: LazyNodes<'_, '_>) -> String { }; let mut dom = VirtualDom::new_with_props(lazy_app, props); + crate::eval::init_eval(dom.base_scope()); _ = dom.rebuild(); Renderer::new().render(&dom)