Rsx

src/dependency.rs

@@ -1,19 +1,19 @@
 use std::sync::Arc;
 
-use crate::{widget::Element};
+use crate::widget::Element;
 
 pub trait DependencyHandler: std::fmt::Debug + Send + Sync {
     fn add(&self);
     fn check(&self) -> bool;
 }
 
-pub struct Dependency<T: Element> {
+pub struct Dependency<T> {
     handlers: Vec<std::sync::Arc<dyn DependencyHandler>>,
     element: T,
     element_reset: Box<dyn FnMut() -> T + Send + Sync>,
 }
 
-impl<T: Element> Dependency<T> {
+impl<T> Dependency<T> {
     pub fn new<F: FnMut() -> T + Send + Sync + 'static>(mut f: F) -> Self {
         Self {
             handlers: Vec::new(),
@@ -22,6 +22,21 @@ impl<T: Element> Dependency<T> {
         }
     }
 
+    pub fn from(
+        mut f: Box<dyn FnMut() -> T + Send + Sync>,
+        handlers: Vec<std::sync::Arc<dyn DependencyHandler>>,
+    ) -> Self {
+        for h in &handlers {
+            h.add();
+        }
+
+        Self {
+            handlers,
+            element: f(),
+            element_reset: f,
+        }
+    }
+
     pub fn auto_reset(&mut self) {
         for i in &self.handlers {
             if i.check() {
@@ -37,6 +52,26 @@ impl<T: Element> Dependency<T> {
     }
 }
 
+impl Element for Dependency<Box<dyn Element>> {
+    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
+        self.element.render(scope);
+        self.auto_reset();
+    }
+
+    fn after_render(&mut self, scope: &crate::render_scope::RenderScope) {
+        self.element.after_render(scope);
+        self.auto_reset();
+    }
+
+    fn as_any(&self) -> &dyn std::any::Any {
+        self
+    }
+
+    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
+        self
+    }
+}
+
 impl<T: Element + 'static> Element for Dependency<T> {
     fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
         self.element.render(scope);

src/frontend.rs

@@ -0,0 +1,23 @@
+use std::sync::Arc;
+
+use crate::{
+    dependency::{Dependency, DependencyHandler},
+    widget::{Element, Widget},
+    Screen,
+};
+
+pub struct Rsx(
+    pub  Vec<(
+        Box<dyn FnMut() -> Box<dyn Element> + Send + Sync>,
+        Vec<std::sync::Arc<dyn DependencyHandler>>,
+    )>,
+);
+
+impl Rsx {
+    pub fn draw(self, screen: &Arc<Screen>) {
+        for i in self.0 {
+            let d = Dependency::from(i.0, i.1);
+            screen.draw_widget(Widget::new(Box::new(d)));
+        }
+    }
+}

src/lib.rs

@@ -10,6 +10,7 @@ use crate::{
 pub mod dependency;
 pub mod elements;
 pub mod extensions;
+pub mod frontend;
 pub mod macros;
 pub mod render_scope;
 pub mod style;
@@ -46,6 +47,12 @@ impl Screen {
         w
     }
 
+    pub fn draw_widget(self: &Arc<Self>, w: Widget) -> Arc<Widget> {
+        let w = Arc::new(w);
+        self.widgets.lock().unwrap().push(w.clone());
+        w
+    }
+
     pub fn extension<E: Extension + Send + Sync + 'static>(self: &Arc<Self>, ext: E) {
         self.extensions
             .lock()

src/macros.rs

@@ -125,5 +125,20 @@ macro_rules! event_handler {
 
 #[macro_export]
 macro_rules! rsx {
-    () => {};
+    ($($inner:tt)*) => {{
+        let mut r = Rsx(Vec::new());
+
+        $crate::rsx_inner! { r, $($inner)* };
+
+        r
+    }};
+}
+
+#[macro_export]
+macro_rules! rsx_inner {
+    ($r:expr, $(%$dep:ident)* $s:literal $($rest:tt)*) => {
+        $r.0.push((Box::new({ $(let $dep = $dep.clone();)* move || Box::new(format!($s)) }), vec![$(Arc::new($dep.clone()),)*]));
+        $crate::rsx_inner!{ $r, $($rest)* };
+    };
+    ($r:expr,) => {};
 }

src/main.rs

@@ -1,26 +1,27 @@
-use osui::{dependency::Dependency, elements::state::use_state, style::Transform, Screen};
+use std::sync::Arc;
+
+use osui::{elements::state::use_state, frontend::Rsx, rsx, Screen};
 
 fn main() -> std::io::Result<()> {
     let screen = Screen::new();
+
+    app().draw(&screen);
+
+    screen.run()
+}
+
+fn app() -> Rsx {
     let count = use_state(0);
 
     std::thread::spawn({
         let count = count.clone();
         move || loop {
-            std::thread::sleep(std::time::Duration::from_millis(1000));
+            std::thread::sleep(std::time::Duration::from_millis(50));
-            **count.get() += 500;
+            **count.get() += 1;
         }
     });
 
-    screen
+    rsx! {
-        .draw(
+        %count "{count}"
-            Dependency::new({
+    }
-                let count = count.clone();
-                move || format!("{count}")
-            })
-            .add(count.clone()),
-        )
-        .component(Transform::center());
-
-    screen.run()
 }