State syncing

Render scoping

.sparkignore

@@ -0,0 +1,5 @@
+debug
+target
+github
+Cargo.lock
+.DS_Store

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "osui"
-version = "0.0.9-alpha.2"
+version = "0.1.1"
 edition = "2021"
 license = "Apache-2.0"
 description = "A TUI library for advanced uis"
@@ -9,8 +9,7 @@ homepage = "https://osui.netlify.app"
 documentation = "https://osui.netlify.app/docs/"
 
 [features]
-no_rsx = []
-no_elem = []
+rsx = []
 
 [lib]
 name = "osui"
@@ -25,6 +24,7 @@ cc = "1.0"
 
 [dependencies]
 crossterm = "0.28.1"
+figlet-rs = "0.1.5"
 
 [profile.dev]
 opt-level = 1

README.md

@@ -21,14 +21,15 @@
 </p>
 
 ```rust
-use osui::{style::Transform, Screen};
+use osui::prelude::*;
 
 fn main() -> std::io::Result<()> {
     let screen = Screen::new();
 
-    screen
-        .draw(format!("Hello, World"))
-        .component(Transform::center());
+    rsx! {
+        "Hello, World"
+    }
+    .draw(&screen);
 
     screen.run()
 }

examples/hello_world.rs

@@ -0,0 +1,68 @@
+use std::sync::Arc;
+
+use osui::{prelude::*, rsx};
+
+pub struct Count(pub State<u16>);
+
+fn main() {
+    let console = Console::new();
+    console.run(app);
+}
+
+fn app(cx: &Arc<Context>) -> View {
+    let count = use_state(0);
+    let mount = use_mount_manual();
+
+    // Sync state with children
+    use_sync_effect(cx, &count, |v| Count(v.clone()), &[&mount, &count]);
+
+    use_effect(
+        {
+            let count = count.clone();
+            move || loop {
+                std::thread::sleep(std::time::Duration::from_millis(500));
+                let mut count = count.get();
+                if *count > 5 {
+                    *count = 0;
+                    continue;
+                }
+                *count += 1;
+            }
+        },
+        &[&mount],
+    );
+
+    rsx! {
+        // Static scope
+        my_component (ctx, view) {
+            let area = ctx.allocate(5, 0, 10, 10);
+            ctx.draw_view(area, view);
+        }
+
+        // Dynamic scope
+        if %count (*count.get() > 5) {
+            my_component (ctx, view) {
+                let area = ctx.allocate(18, 0, 10, 10);
+                ctx.draw_view(area, view);
+            }
+        }
+
+        // Dynamic scope
+        for %count (i in 0..count.get_dl()) {
+            "{i}" @Point { x: 0, y: i };
+        }
+
+        !mount mount
+    }
+    .view(cx.clone())
+}
+
+fn my_component(cx: &Arc<Context>) -> View {
+    // Sync state with parent
+    let count = use_sync_state(cx, 0, |Count(v)| v.get_dl());
+
+    rsx! {
+        "Count: {count}"
+    }
+    .view(cx.clone())
+}

src/component.rs

@@ -0,0 +1,199 @@
+use std::{
+    any::{Any, TypeId},
+    collections::HashMap,
+    sync::{Arc, Mutex},
+};
+
+use crate::{
+    render::DrawContext,
+    state::{use_effect, HookDependency},
+    View, ViewWrapper,
+};
+
+pub type Component = Arc<dyn Fn(&Arc<Context>) -> View + Send + Sync>;
+pub type EventHandler = Arc<Mutex<dyn FnMut(&Arc<Context>, &dyn Any) + Send + Sync>>;
+
+pub struct Scope {
+    pub children: Mutex<Vec<(Arc<Context>, Option<ViewWrapper>)>>,
+}
+
+pub struct Context {
+    component: Mutex<Component>,
+    event_handlers: Mutex<HashMap<TypeId, Vec<EventHandler>>>,
+    view: Mutex<View>,
+    pub(crate) scopes: Mutex<Vec<Arc<Scope>>>,
+}
+
+impl Context {
+    pub fn new<F: Fn(&Arc<Self>) -> View + Send + Sync + 'static>(component: F) -> Arc<Self> {
+        Arc::new(Self {
+            component: Mutex::new(Arc::new(component)),
+            event_handlers: Mutex::new(HashMap::new()),
+            view: Mutex::new(Arc::new(|_| {})),
+            scopes: Mutex::new(Vec::new()),
+        })
+    }
+
+    pub fn refresh(self: &Arc<Self>) {
+        let s = self.clone();
+
+        std::thread::spawn({
+            move || {
+                s.event_handlers.lock().unwrap().clear();
+                let c = s.component.lock().unwrap().clone();
+                *s.view.lock().unwrap() = (c)(&s);
+            }
+        });
+    }
+
+    pub fn refresh_atomic(self: &Arc<Self>) -> Arc<Mutex<bool>> {
+        let s = self.clone();
+        let done = Arc::new(Mutex::new(false));
+
+        std::thread::spawn({
+            let done = done.clone();
+            move || {
+                s.event_handlers.lock().unwrap().clear();
+                let c = s.component.lock().unwrap().clone();
+                *s.view.lock().unwrap() = (c)(&s);
+                *done.lock().unwrap() = true;
+            }
+        });
+
+        done
+    }
+
+    pub fn get_view(self: &Arc<Self>) -> View {
+        self.view.lock().unwrap().clone()
+    }
+
+    pub fn on_event<T: Any + 'static, F: Fn(&Arc<Self>, &T) + Send + Sync + 'static>(
+        self: &Arc<Self>,
+        handler: F,
+    ) {
+        self.event_handlers
+            .lock()
+            .unwrap()
+            .entry(TypeId::of::<T>())
+            .or_insert_with(|| Vec::new())
+            .push(Arc::new(Mutex::new(
+                move |ctx: &Arc<Self>, event: &dyn Any| {
+                    if let Some(e) = event.downcast_ref::<T>() {
+                        (handler)(ctx, e);
+                    }
+                },
+            )));
+    }
+
+    pub fn emit_event<E: Any + 'static>(self: &Arc<Self>, event: &E) {
+        if let Some(v) = self.event_handlers.lock().unwrap().get(&TypeId::of::<E>()) {
+            for i in v {
+                (i.lock().unwrap())(self, event);
+            }
+        }
+
+        for scope in self.scopes.lock().unwrap().iter() {
+            for (child, _) in scope.children.lock().unwrap().iter() {
+                child.emit_event(event);
+            }
+        }
+    }
+
+    pub fn emit_event_threaded<E: Any + Send + Sync + Clone + 'static>(
+        self: &Arc<Self>,
+        event: &E,
+    ) {
+        if let Some(v) = self.event_handlers.lock().unwrap().get(&TypeId::of::<E>()) {
+            for i in v {
+                let i = i.clone();
+                let event = event.clone();
+                let s = self.clone();
+                std::thread::spawn(move || {
+                    (i.lock().unwrap())(&s, &event);
+                });
+            }
+        }
+
+        for scope in self.scopes.lock().unwrap().iter() {
+            for (child, _) in scope.children.lock().unwrap().iter() {
+                child.emit_event_threaded(event);
+            }
+        }
+    }
+
+    pub fn scope(self: &Arc<Self>) -> Arc<Scope> {
+        let scope = Arc::new(Scope {
+            children: Mutex::new(Vec::new()),
+        });
+        self.scopes.lock().unwrap().push(scope.clone());
+
+        scope
+    }
+
+    pub fn dyn_scope<F: Fn(&Arc<Scope>) + Send + Sync + 'static>(
+        self: &Arc<Self>,
+        drawer: F,
+        dependencies: &[&dyn HookDependency],
+    ) -> Arc<Scope> {
+        let scope = Arc::new(Scope {
+            children: Mutex::new(Vec::new()),
+        });
+        self.scopes.lock().unwrap().push(scope.clone());
+
+        drawer(&scope);
+
+        use_effect(
+            {
+                let scope = scope.clone();
+                move || {
+                    drawer(&scope);
+                }
+            },
+            dependencies,
+        );
+
+        scope
+    }
+
+    pub fn draw_children(self: &Arc<Self>, ctx: &mut DrawContext) {
+        for scope in self.scopes.lock().unwrap().iter() {
+            for (child, view_wrapper) in scope.children.lock().unwrap().iter() {
+                let view = child.get_view();
+
+                if let Some(view_wrapper) = view_wrapper {
+                    view_wrapper(ctx, view)
+                } else {
+                    ctx.draw_view(ctx.area.clone(), view);
+                }
+            }
+        }
+    }
+}
+
+impl Scope {
+    pub fn new() -> Arc<Self> {
+        Arc::new(Self {
+            children: Mutex::new(Vec::new()),
+        })
+    }
+
+    pub fn child<F: Fn(&Arc<Context>) -> View + Send + Sync + 'static>(
+        self: &Arc<Self>,
+        child: F,
+        view_wrapper: Option<ViewWrapper>,
+    ) {
+        let ctx = Context::new(child);
+
+        ctx.refresh();
+
+        self.children.lock().unwrap().push((ctx, view_wrapper));
+    }
+
+    pub fn view(self: &Arc<Self>, view: View) {
+        let ctx = Context::new(move |_| view.clone());
+
+        ctx.refresh();
+
+        self.children.lock().unwrap().push((ctx, None));
+    }
+}

src/elements/div.rs

@@ -1,70 +0,0 @@
-use std::sync::{Arc, Mutex};
-
-use crate::{
-    widget::{Element, Widget},
-    NoRender,
-};
-
-pub struct Div {
-    color: u32,
-    children: Mutex<Vec<Arc<Widget>>>,
-    size: (u16, u16),
-}
-
-impl Element for Div {
-    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let (width, height) = scope.get_size_or(self.size.0, self.size.1);
-        scope.draw_rect(width, height, self.color);
-    }
-
-    fn after_render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let mut transform = scope.get_transform().clone();
-        let (w, h) = scope.get_parent_size();
-        scope.set_parent_size(transform.width, transform.height);
-
-        for elem in self.children.lock().unwrap().iter() {
-            scope.clear();
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            elem.0.lock().unwrap().render(scope);
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            let t = scope.get_transform_mut();
-            transform.width = transform.width.max(t.x + t.width);
-            transform.height = transform.height.max(t.y + t.height);
-            t.x += transform.x;
-            t.y += transform.y;
-
-            scope.draw();
-            elem.0.lock().unwrap().after_render(scope);
-            scope.clear();
-        }
-        scope.set_parent_size(w, h);
-        self.size = (transform.width, transform.height);
-    }
-
-    fn draw_child(&self, element: &Arc<Widget>) {
-        self.children.lock().unwrap().push(element.clone());
-        element.inject(|w| w.component(NoRender));
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl Div {
-    pub fn new(color: u32) -> Self {
-        Div {
-            color,
-            children: Mutex::new(Vec::new()),
-            size: (0, 0),
-        }
-    }
-}

src/elements/flex.rs

@@ -1,141 +0,0 @@
-use std::sync::{Arc, Mutex};
-
-use crate::{widget::{Element, Widget}, NoRender};
-
-pub struct FlexRow {
-    color: u32,
-    gap: u16,
-    children: Mutex<Vec<Arc<Widget>>>,
-    size: (u16, u16),
-}
-
-pub struct FlexCol {
-    color: u32,
-    gap: u16,
-    children: Mutex<Vec<Arc<Widget>>>,
-    size: (u16, u16),
-}
-
-impl Element for FlexRow {
-    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let (width, height) = scope.get_size_or(self.size.0, self.size.1);
-        scope.draw_rect(width, height, self.color);
-    }
-
-    fn after_render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let mut transform = scope.get_transform().clone();
-        let (w, h) = scope.get_parent_size();
-        scope.set_parent_size(transform.width, transform.height);
-
-        let mut v = 0;
-
-        for elem in self.children.lock().unwrap().iter() {
-            scope.clear();
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            elem.0.lock().unwrap().render(scope);
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            let t = scope.get_transform_mut();
-            transform.width = transform.width.max(t.width);
-            transform.height = transform.height.max(v + t.height);
-            t.x += transform.x;
-            t.y += transform.y + v;
-            v += t.height + self.gap;
-
-            scope.draw();
-
-            elem.0.lock().unwrap().after_render(scope);
-        }
-        scope.set_parent_size(w, h);
-        self.size = (transform.width, transform.height);
-    }
-
-    fn draw_child(&self, element: &Arc<Widget>) {
-        self.children.lock().unwrap().push(element.clone());
-        element.inject(|w| w.component(NoRender));
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl FlexRow {
-    pub fn new(color: u32, gap: u16) -> Self {
-        Self {
-            children: Mutex::new(Vec::new()),
-            size: (0, 0),
-            color,
-            gap,
-        }
-    }
-}
-
-impl Element for FlexCol {
-    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let (width, height) = scope.get_size_or(self.size.0, self.size.1);
-        scope.draw_rect(width, height, self.color);
-    }
-
-    fn after_render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        let mut transform = scope.get_transform().clone();
-        let (w, h) = scope.get_parent_size();
-        scope.set_parent_size(transform.width, transform.height);
-
-        let mut v = 0;
-
-        for elem in self.children.lock().unwrap().iter() {
-            scope.clear();
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            elem.0.lock().unwrap().render(scope);
-            if let Some(t) = elem.get() {
-                scope.set_transform(&t);
-            }
-            let t = scope.get_transform_mut();
-            transform.width = transform.width.max(v + t.width);
-            transform.height = transform.height.max(t.height);
-            t.x += transform.x + v;
-            t.y += transform.y;
-            v += t.width + self.gap;
-
-            scope.draw();
-
-            elem.0.lock().unwrap().after_render(scope);
-        }
-        scope.set_parent_size(w, h);
-        self.size = (transform.width, transform.height);
-    }
-
-    fn draw_child(&self, element: &Arc<Widget>) {
-        self.children.lock().unwrap().push(element.clone());
-        element.inject(|w| w.component(NoRender));
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl FlexCol {
-    pub fn new(color: u32, gap: u16) -> Self {
-        Self {
-            children: Mutex::new(Vec::new()),
-            size: (0, 0),
-            color,
-            gap,
-        }
-    }
-}

src/elements/mod.rs

@@ -1,37 +0,0 @@
-pub mod div;
-pub mod flex;
-pub mod shape;
-
-pub use div::*;
-pub use flex::*;
-pub use shape::*;
-
-use crate::Element;
-
-impl Element for String {
-    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        scope.draw_text(self);
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl Element for (String, u32) {
-    fn render(&mut self, scope: &mut crate::render_scope::RenderScope) {
-        scope.draw_text_colored(&self.0, self.1);
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}

src/elements/shape.rs

@@ -1,59 +0,0 @@
-use crate::widget::Element;
-
-pub struct RoundedOutline;
-
-impl Element for RoundedOutline {
-    fn render(&mut self, scope: &mut crate::prelude::RenderScope) {
-        let (w, h) = scope.get_size_or_parent();
-        if w > 2 && h > 2 {
-            let d = "─".repeat(w as usize - 2);
-            scope.draw_text(&format!(
-                "╭{d}╮{}\n╰{d}╯",
-                format!("\n│{}│", " ".repeat(w as usize - 2)).repeat(h as usize - 2),
-            ));
-        }
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl RoundedOutline {
-    pub fn new() -> Self {
-        Self
-    }
-}
-
-pub struct Outline;
-
-impl Element for Outline {
-    fn render(&mut self, scope: &mut crate::prelude::RenderScope) {
-        let (w, h) = scope.get_size_or_parent();
-        if w > 2 && h > 2 {
-            let d = "─".repeat(w as usize - 2);
-            scope.draw_text(&format!(
-                "┌{d}┐{}\n└{d}┘",
-                format!("\n│{}│", " ".repeat(w as usize - 2)).repeat(h as usize - 2),
-            ));
-        }
-    }
-
-    fn as_any(&self) -> &dyn std::any::Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-        self
-    }
-}
-
-impl Outline {
-    pub fn new() -> Self {
-        Self
-    }
-}

src/engine.rs

@@ -0,0 +1,87 @@
+use std::{
+    io::{stdout, Write},
+    sync::{Arc, Mutex},
+};
+
+use crossterm::{cursor::MoveTo, execute, terminal::Clear};
+
+use crate::{prelude::Context, render::Area, DrawContext, View};
+
+pub trait Engine {
+    fn render_view(&self, area: &Area, view: &View) -> DrawContext;
+    fn draw_context(&self, ctx: &DrawContext);
+}
+
+pub struct Console {
+    threads: Mutex<Vec<Arc<dyn Fn(Arc<Context>) + Send + Sync>>>,
+}
+
+impl Console {
+    pub fn new() -> Self {
+        Self {
+            threads: Mutex::new(Vec::new()),
+        }
+    }
+
+    pub fn thread<F: Fn(Arc<Context>) + Send + Sync + 'static>(&self, run: F) {
+        self.threads.lock().unwrap().push(Arc::new(run));
+    }
+
+    pub fn run<F: Fn(&Arc<Context>) -> View + Send + Sync + 'static>(&self, component: F) {
+        let cx = Context::new(component);
+        cx.refresh();
+
+        for thread in self.threads.lock().unwrap().iter() {
+            let thread = thread.clone();
+
+            std::thread::spawn({
+                let cx = cx.clone();
+                move || thread(cx)
+            });
+        }
+
+        loop {
+            let (width, height) = crossterm::terminal::size().unwrap();
+
+            execute!(stdout(), Clear(crossterm::terminal::ClearType::Purge)).unwrap();
+            execute!(stdout(), Clear(crossterm::terminal::ClearType::All)).unwrap();
+
+            self.draw_context(&self.render_view(
+                &Area {
+                    x: 0,
+                    y: 0,
+                    width,
+                    height,
+                },
+                &cx.get_view(),
+            ));
+
+            std::thread::sleep(std::time::Duration::from_millis(16));
+        }
+    }
+}
+
+impl Engine for Console {
+    fn render_view(&self, area: &Area, view: &View) -> DrawContext {
+        let mut context = DrawContext::new(area.clone());
+        view(&mut context);
+        context
+    }
+
+    fn draw_context(&self, ctx: &DrawContext) {
+        for inst in &ctx.drawing {
+            match inst {
+                crate::render::DrawInstruction::Text(point, text) => {
+                    let (x, y) = (ctx.area.x + point.x, ctx.area.y + point.y);
+                    execute!(stdout(), MoveTo(x, y),).unwrap();
+                    print!("{text}");
+                    stdout().flush().unwrap();
+                }
+                crate::render::DrawInstruction::Child(_point, child) => self.draw_context(child),
+                crate::render::DrawInstruction::View(area, view) => {
+                    self.draw_context(&self.render_view(area, view))
+                }
+            }
+        }
+    }
+}

src/extensions/id.rs

@@ -1,27 +0,0 @@
-use std::sync::Arc;
-
-use crate::{component, extensions::Extension, widget::Widget, Screen};
-
-pub struct IdExtension(pub Arc<Screen>);
-
-impl Extension for Arc<IdExtension> {}
-
-impl IdExtension {
-    pub fn new(screen: Arc<Screen>) -> Arc<Self> {
-        Arc::new(IdExtension(screen))
-    }
-
-    pub fn get_element(self: &Arc<IdExtension>, id: usize) -> Option<Arc<Widget>> {
-        for elem in self.0.widgets.lock().unwrap().iter() {
-            if let Some(current_id) = elem.get::<Id>() {
-                if current_id.0 == id {
-                    return Some(elem.clone());
-                }
-            }
-        }
-
-        None
-    }
-}
-
-component!(Id(pub usize));

src/extensions/mod.rs

@@ -1,59 +0,0 @@
-pub mod id;
-pub mod resources;
-pub mod tick;
-pub mod velocity;
-
-pub use id::*;
-pub use resources::*;
-pub use tick::*;
-pub use velocity::*;
-
-use std::{
-    any::{type_name, Any},
-    fmt::Debug,
-    sync::{Arc, Mutex},
-};
-
-use crate::{
-    render_scope::RenderScope,
-    widget::{Component, Widget},
-    Screen,
-};
-
-pub trait Extension {
-    fn init(&mut self, _screen: Arc<Screen>) {}
-    fn render_widget(&mut self, _scope: &mut RenderScope, _widget: &Arc<Widget>) {}
-}
-
-pub trait Event: Send + Sync {
-    fn as_any(&self) -> &dyn Any;
-}
-
-#[derive(Clone)]
-pub struct Handler<E: Event>(Arc<Mutex<dyn FnMut(&Arc<Widget>, &E) + Send + Sync>>);
-
-impl<E: Event + 'static> Component for Handler<E> {
-    fn as_any(&self) -> &dyn Any {
-        self
-    }
-
-    fn as_any_mut(&mut self) -> &mut dyn Any {
-        self
-    }
-}
-
-impl<E: Event + 'static> Handler<E> {
-    pub fn new<F: FnMut(&Arc<Widget>, &E) + Send + Sync + 'static>(f: F) -> Handler<E> {
-        Handler(Arc::new(Mutex::new(f)))
-    }
-
-    pub fn call(&self, w: &Arc<Widget>, e: &E) {
-        (self.0.lock().unwrap())(w, e)
-    }
-}
-
-impl<E: Event> Debug for Handler<E> {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "Handler({})", type_name::<E>())
-    }
-}

src/extensions/resources.rs

@@ -1,22 +0,0 @@
-use std::sync::{Arc, Mutex};
-
-#[derive(Clone)]
-pub struct VecResource<T>(Arc<Mutex<Box<dyn FnMut(&T) + Send + Sync>>>);
-
-impl<T: Send + Sync + 'static> VecResource<T> {
-    pub fn new() -> Self {
-        Self(Arc::new(Mutex::new(Box::new(|_| {}))))
-    }
-
-    pub fn iterate<F: FnMut(&T) + Send + Sync + 'static>(&self, f: F) {
-        *self.0.lock().unwrap() = Box::new(f);
-    }
-
-    pub fn push(&self, e: T) {
-        let i = self.0.clone();
-
-        std::thread::spawn(move || {
-            (i.lock().unwrap())(&e);
-        });
-    }
-}

src/extensions/tick.rs

@@ -1,29 +0,0 @@
-use std::{fmt::Debug, sync::Arc};
-
-use crate::extensions::Extension;
-use crate::extensions::Handler;
-use crate::{event, Screen};
-
-pub struct TickExtension(pub u16);
-
-impl Extension for TickExtension {
-    fn init(&mut self, screen: Arc<Screen>) {
-        let rate_dur = 1000 / self.0 as u64;
-        std::thread::spawn({
-            move || {
-                let mut tick = 0;
-                loop {
-                    for w in screen.widgets.lock().unwrap().iter() {
-                        if let Some(on_tick) = w.get::<Handler<TickEvent>>() {
-                            on_tick.call(&w, &TickEvent(tick))
-                        }
-                    }
-                    tick += 1;
-                    std::thread::sleep(std::time::Duration::from_millis(rate_dur));
-                }
-            }
-        });
-    }
-}
-
-event!(TickEvent(pub u32));

src/extensions/velocity.rs

@@ -1,66 +0,0 @@
-use std::sync::Arc;
-
-use crate::{
-    component,
-    extensions::Extension,
-    style::{Position, Transform},
-    widget::Widget,
-    Screen,
-};
-
-pub struct VelocityExtension;
-
-impl VelocityExtension {
-    fn apply_velocity(ticks: u16, velocity: i32, x: &mut u16) {
-        if velocity.abs() != 0 && ticks as i32 % (1000 / velocity.abs()) == 0 {
-            if velocity > 0 {
-                *x += 1;
-            } else if velocity < 0 {
-                *x -= 1;
-            }
-        }
-    }
-}
-
-impl VelocityExtension {
-    fn apply_velocity_xy(ticks: u16, widget: &Arc<Widget>) {
-        if let Some(velocity) = widget.get::<Velocity>() {
-            if let Some(mut t) = widget.get::<Transform>() {
-                match &mut t.x {
-                    Position::Const(x) => Self::apply_velocity(ticks, velocity.0, x),
-                    _ => {}
-                }
-
-                match &mut t.y {
-                    Position::Const(y) => Self::apply_velocity(ticks, velocity.1, y),
-                    _ => {}
-                }
-
-                widget.set_component(t);
-            }
-        }
-    }
-}
-
-impl Extension for VelocityExtension {
-    fn init(&mut self, screen: Arc<Screen>) {
-        std::thread::spawn({
-            move || {
-                let mut tick = 0;
-                loop {
-                    for widget in screen.widgets.lock().unwrap().iter() {
-                        Self::apply_velocity_xy(tick, widget);
-                    }
-                    if tick > 1000 {
-                        tick = 0;
-                    } else {
-                        tick += 1;
-                    }
-                    std::thread::sleep(std::time::Duration::from_millis(1));
-                }
-            }
-        });
-    }
-}
-
-component!(Velocity(pub i32, pub i32));

src/frontend.rs

@@ -1,58 +1,58 @@
 use std::sync::Arc;
 
 use crate::{
-    state::DependencyHandler,
-    widget::{Widget, WidgetLoad},
-    Screen,
+    component::{Context, Scope},
+    state::HookDependency,
+    View,
 };
 
-pub enum RsxElement {
-    Element(
-        Box<dyn FnMut() -> WidgetLoad + Send + Sync>,
-        Vec<Box<dyn DependencyHandler>>,
-        Rsx,
+pub enum RsxScope {
+    Static(Arc<Scope>),
+    Dynamic(
+        Arc<dyn Fn(&Arc<Scope>) + Send + Sync>,
+        Vec<Box<dyn HookDependency>>,
     ),
 }
 
-pub struct Rsx(pub Vec<RsxElement>);
+pub struct Rsx(Vec<RsxScope>);
 
 impl Rsx {
-    pub fn draw(self, screen: &Arc<Screen>) {
-        self.draw_parent(screen, None);
+    pub fn new() -> Self {
+        Self(Vec::new())
     }
 
-    pub fn draw_parent(self, screen: &Arc<Screen>, parent: Option<Arc<Widget>>) {
-        for rsx_elem in self.0 {
-            match rsx_elem {
-                RsxElement::Element(f, dep, child) => {
-                    let w = if let Some(parent) = &parent {
-                        let w = screen.draw_box(f);
-                        parent.0.lock().unwrap().draw_child(&w);
-                        w
-                    } else {
-                        screen.draw_box(f)
-                    };
-
-                    for d in dep {
-                        w.dependency_box(d);
-                    }
-                    child.draw_parent(screen, Some(w.clone()));
-                }
-            }
-        }
+    pub fn static_scope(&mut self, scope: Arc<Scope>) {
+        self.0.push(RsxScope::Static(scope));
     }
 
-    pub fn create_element<F: FnMut() -> WidgetLoad + Send + Sync + 'static>(
+    pub fn dynamic_scope<F: Fn(&Arc<Scope>) + Send + Sync + 'static>(
         &mut self,
-        load: F,
-        dependencies: Vec<Box<dyn DependencyHandler>>,
-        children: Rsx,
+        drawer: F,
+        dependencies: Vec<Box<dyn HookDependency>>,
     ) {
         self.0
-            .push(RsxElement::Element(Box::new(load), dependencies, children));
+            .push(RsxScope::Dynamic(Arc::new(drawer), dependencies));
     }
 
-    pub fn expand(&mut self, other: &mut Rsx) {
-        self.0.append(&mut other.0);
+    pub fn view(&self, context: Arc<Context>) -> View {
+        for scope in &self.0 {
+            match scope {
+                RsxScope::Static(scope) => context.scopes.lock().unwrap().push(scope.clone()),
+                RsxScope::Dynamic(drawer, dependencies) => {
+                    let drawer = drawer.clone();
+                    context.dyn_scope(
+                        move |c| drawer(c),
+                        &dependencies.iter().map(|d| d.as_ref()).collect::<Vec<_>>(),
+                    );
+                }
+            }
+        }
+
+        let context = context.clone();
+        Arc::new({
+            move |ctx| {
+                context.draw_children(ctx);
+            }
+        })
     }
 }

src/lib.rs

@@ -1,132 +1,21 @@
-use std::sync::{Arc, Mutex};
+use std::sync::Arc;
 
-use crate::{
-    extensions::{Extension, Handler},
-    render_scope::RenderScope,
-    widget::{Element, Widget, WidgetLoad},
-};
+use crate::render::DrawContext;
 
-pub mod elements;
-pub mod extensions;
+pub mod component;
+pub mod engine;
 pub mod frontend;
 pub mod macros;
-pub mod render_scope;
+pub mod render;
 pub mod state;
-pub mod style;
-pub mod utils;
-pub mod widget;
 
 pub mod prelude {
-    pub use crate::{
-        elements::*, extensions::*, frontend::*, render_scope::*, state::*, style::*, utils::*,
-        widget::*, *,
-    };
-
-    pub use crate::style::{Dimension::{Full, Content}, Position::{Center, End}};
+    pub use crate::component::*;
+    pub use crate::engine::*;
+    pub use crate::render::*;
+    pub use crate::state::*;
+    pub use crate::View;
 }
 
-pub struct Screen {
-    pub widgets: Mutex<Vec<Arc<Widget>>>,
-    extensions: Mutex<Vec<Arc<Mutex<Box<dyn Extension + Send + Sync>>>>>,
-}
-
-event!(RenderWrapperEvent(*mut RenderScope));
-component!(NoRender);
-
-impl RenderWrapperEvent {
-    pub fn get_scope(&self) -> &mut RenderScope {
-        unsafe { &mut *self.0 }
-    }
-}
-
-unsafe impl Send for RenderWrapperEvent {}
-unsafe impl Sync for RenderWrapperEvent {}
-
-impl Screen {
-    pub fn new() -> Arc<Self> {
-        Arc::new(Self {
-            widgets: Mutex::new(Vec::new()),
-            extensions: Mutex::new(Vec::new()),
-        })
-    }
-
-    pub fn draw<F: FnMut() -> WidgetLoad + 'static + Send + Sync>(
-        self: &Arc<Self>,
-        element: F,
-    ) -> Arc<Widget> {
-        let w = Arc::new(Widget::new(Box::new(element)));
-        self.widgets.lock().unwrap().push(w.clone());
-        w
-    }
-
-    pub fn draw_box(
-        self: &Arc<Self>,
-        element: Box<dyn FnMut() -> WidgetLoad + Send + Sync>,
-    ) -> Arc<Widget> {
-        let w = Arc::new(Widget::new(Box::new(element)));
-        self.widgets.lock().unwrap().push(w.clone());
-        w
-    }
-
-    pub fn extension<E: Extension + Send + Sync + 'static>(self: &Arc<Self>, ext: E) {
-        self.extensions
-            .lock()
-            .unwrap()
-            .push(Arc::new(Mutex::new(Box::new(ext))));
-    }
-
-    pub fn run(self: &Arc<Self>) -> std::io::Result<()> {
-        for ext in self.extensions.lock().unwrap().iter() {
-            ext.lock().unwrap().init(self.clone());
-        }
-
-        utils::hide_cursor()?;
-
-        loop {
-            self.render()?;
-            std::thread::sleep(std::time::Duration::from_millis(28));
-        }
-    }
-
-    pub fn render(self: &Arc<Self>) -> std::io::Result<()> {
-        let mut scope = RenderScope::new();
-        let (w, h) = crossterm::terminal::size().unwrap();
-        scope.set_parent_size(w, h);
-
-        utils::clear()?;
-        for elem in self.widgets.lock().unwrap().iter() {
-            if let Some(NoRender) = elem.get() {
-                for ext in self.extensions.lock().unwrap().iter() {
-                    ext.lock().unwrap().render_widget(&mut scope, elem);
-                }
-                elem.auto_refresh();
-                continue;
-            }
-
-            if let Some(wrapper) = elem.get::<Handler<RenderWrapperEvent>>() {
-                wrapper.call(elem, &RenderWrapperEvent(&mut scope));
-            } else {
-                scope.clear();
-                if let Some(t) = elem.get() {
-                    scope.set_transform(&t);
-                }
-
-                for ext in self.extensions.lock().unwrap().iter() {
-                    ext.lock().unwrap().render_widget(&mut scope, elem);
-                }
-
-                elem.0.lock().unwrap().render(&mut scope);
-
-                if let Some(t) = elem.get() {
-                    scope.set_transform(&t);
-                }
-                scope.draw();
-
-                elem.0.lock().unwrap().after_render(&mut scope);
-            }
-
-            elem.auto_refresh();
-        }
-        Ok(())
-    }
-}
+pub type View = Arc<dyn Fn(&mut DrawContext) + Send + Sync>;
+pub type ViewWrapper = Arc<dyn Fn(&mut DrawContext, View) + Send + Sync>;

src/macros.rs

@@ -1,175 +1,165 @@
-#[macro_export]
-macro_rules! event {
-    ($name:ident) => {
-        #[derive(Debug, Clone)]
-        pub struct $name;
-
-        impl $crate::extensions::Event for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-        }
-    };
-
-    ($name:ident {$($inner:tt)*}) => {
-        #[derive(Debug, Clone)]
-        pub struct $name {
-            $($inner)*
-        }
-
-        impl $crate::extensions::Event for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-        }
-    };
-
-    ($name:ident ($($inner:tt)*)) => {
-        #[derive(Debug, Clone)]
-        pub struct $name ($($inner)*);
-
-        impl $crate::extensions::Event for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-        }
-    };
-}
-
-#[macro_export]
-macro_rules! component {
-    ($name:ident) => {
-        #[derive(Debug, Clone)]
-        pub struct $name;
-
-        impl $crate::widget::Component for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-
-            fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-                self
-            }
-        }
-    };
-
-    ($name:ident {$($inner:tt)*}) => {
-        #[derive(Debug, Clone)]
-        pub struct $name {
-            $($inner)*
-        }
-
-        impl $crate::widget::Component for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-
-            fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-                self
-            }
-        }
-    };
-
-    ($name:ident ($($inner:tt)*)) => {
-        #[derive(Debug, Clone)]
-        pub struct $name ($($inner)*);
-
-        impl $crate::widget::Component for $name {
-            fn as_any(&self) -> &dyn std::any::Any {
-                self
-            }
-
-            fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
-                self
-            }
-        }
-    };
-}
-
-/// Macro to create an event handler closure that calls a method on `self`
-///
-/// This macro automates the pattern of capturing `self` as a raw pointer,
-/// then passing an event to a method on `self` inside an unsafe closure.
-///
-/// # Parameters
-/// - `$self_ty`: The self type.
-/// - `$self`: The instance variable (usually `self`) to call the method on.
-/// - `$events`: The event source which has an `.on` method to register the handler.
-/// - `$method`: The method name on `self` to call when an event occurs.
-///
-/// # Usage
-/// ```rust
-/// event_handler!(self, events, on_keypress);
-/// ```
-///
-/// This expands roughly to:
-/// ```rust
-/// let self_ref = self as *mut Self;
-/// events.on(move |event| unsafe { (*self_ref).on_keypress(event) });
-/// ```
-///
-/// # Safety
-/// This macro uses `unsafe` code because it dereferences a raw pointer inside the closure.
-/// Ensure that the `self` reference lives at least as long as the closure to avoid undefined behavior.
-///
-/// # Why use raw pointers here?
-/// Often, event handlers require `'static` closures, but `self` is a stack reference.
-/// Capturing `self` directly is not possible, so this workaround uses a raw pointer.
-#[macro_export]
-macro_rules! event_handler {
-    ($self_ty:ty, $self:ident, $events:ident, $method:ident) => {{
-        let self_ref = $self as *mut $self_ty;
-        $events.on(move |es, e| unsafe { (*self_ref).$method(es, e) });
-    }};
-}
-
-#[macro_export]
-macro_rules! transform {
-    ($($f:ident: $v:expr),* $(,)?) => {{
-        let mut t = Transform::new();
-        $(t.$f = $v.into();)*
-        t
-    }};
-}
-
 #[macro_export]
 macro_rules! rsx {
-    ($($inner:tt)*) => {{
-        let mut r = $crate::frontend::Rsx(Vec::new());
-
-        $crate::rsx_inner! { r, $($inner)* };
+    () => {
+        $crate::frontend::Rsx::new()
+    };
 
+    ($($rsx:tt)+) => {{
+        let mut r = $crate::frontend::Rsx::new();
+        {
+            $crate::rsx_scope!(r, $($rsx)+);
+        }
         r
     }};
 }
 
 #[macro_export]
-macro_rules! rsx_inner {
-    ($r:expr, $(%$dep:ident)* $(@$comp:expr;)* $s:literal $($rest:tt)*) => {
-        $r.create_element({ $(let $dep = $dep.clone();)* move || {
-            $crate::widget::WidgetLoad::new(format!($s)) $(.component($comp))*
-        } }, vec![$(Box::new($dep.clone())),*], $crate::frontend::Rsx(Vec::new()));
-        $crate::rsx_inner! { $r, $($rest)* };
+macro_rules! rsx_scope {
+    ($rsx:expr, for $(%$($dep:ident $(as $dp:pat,)?),+)? ($p:pat in $v:expr) {$($inner:tt)*} $($rest:tt)*) => {
+        {
+            $($($crate::rsx_dep!($dep);)+)?
+
+            $rsx.dynamic_scope({
+                $($($crate::rsx_dep!($dep $(as $dp)?);)+)?
+                move |scope| {
+                    scope.children.lock().unwrap().clear();
+                    for $p in $v {
+                        $crate::rsx_child!(scope, $($inner)*);
+                    }
+                }
+            }, vec![$($(Box::new($dep)),+)?]);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
     };
 
-    ($r:expr, $(%$dep:ident)* $(@$comp:expr;)* $name:path { $($inner:tt)* } ($($e:expr),*) $($rest:tt)*) => {
-        $r.create_element({ $(let $dep = $dep.clone();)* move || {
-            $crate::widget::WidgetLoad::new(<$name>::new($($e),*)) $(.component($comp))*
-        } }, vec![$(Box::new($dep.clone())),*], $crate::rsx!{ $($inner)* });
-        $crate::rsx_inner! { $r, $($rest)* };
+    ($rsx:expr, if $(%$($dep:ident $(as $dp:pat,)?),+)? ($st:expr) {$($inner:tt)*} $($rest:tt)*) => {
+        {
+            $($($crate::rsx_dep!($dep);)+)?
+
+            $rsx.dynamic_scope({
+                $($($crate::rsx_dep!($dep $(as $dp)?);)+)?
+                move |scope| {
+                    if $st {
+                        if scope.children.lock().unwrap().len() == 0 {
+                            $crate::rsx_child!(scope, $($inner)*);
+                        }
+                    } else {
+                        scope.children.lock().unwrap().clear();
+                    }
+                }
+            }, vec![$($(Box::new($dep)),+)?]);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
     };
 
-    ($r:expr, $(%$dep:ident)* $(@$comp:expr;)* $name:path { $($inner:tt)* } $($rest:tt)*) => {
-        $r.create_element({ $(let $dep = $dep.clone();)* move || {
-            $crate::widget::WidgetLoad::new(<$name>::new()) $(.component($comp))*
-        } }, vec![$(Box::new($dep.clone())),*], $crate::rsx!{ $($inner)* });
-        $crate::rsx_inner! { $r, $($rest)* };
+    ($rsx:expr, $(%$($dep:ident $(as $dp:pat,)?),+)? $text:literal @$d:expr; $($rest:tt)*) => {
+        {
+            let scope = $crate::component::Scope::new();
+
+            $($($crate::rsx_dep!($dep $(as $dp)?);)+)?
+
+            $crate::rsx_child!(scope, $text @$d;);
+
+            $rsx.static_scope(scope);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
     };
 
-    ($r:expr, $expand:ident => ($($inner:tt)*) $($rest:tt)*) => {
-        $r.expand(&mut $expand($($inner)*));
-        $crate::rsx_inner! { $r, $($rest)* };
+    ($rsx:expr, $(%$($dep:ident $(as $dp:pat,)?),+)? $text:literal $($rest:tt)*) => {
+        {
+            let scope = $crate::component::Scope::new();
+
+            $($($crate::rsx_dep!($dep $(as $dp)?);)+)?
+
+            $crate::rsx_child!(scope, $text);
+
+            $rsx.static_scope(scope);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
     };
 
-    ($r:expr,) => {};
+    ($rsx:expr, $component:ident ($ctx:ident, $view:ident) $body:block $($rest:tt)*) => {
+        {
+            let scope = $crate::component::Scope::new();
+
+            $crate::rsx_child!(scope, $component ($ctx, $view) $body);
+
+            $rsx.static_scope(scope);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
+    };
+
+    ($rsx:expr, $component:ident $($rest:tt)*) => {
+        {
+            let scope = $crate::component::Scope::new();
+
+            $crate::rsx_child!(scope, $component);
+
+            $rsx.static_scope(scope);
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
+    };
+
+    ($rsx:expr, !mount $mount:ident $($rest:tt)*) => {
+        {
+            $mount.mount();
+        }
+
+        $crate::rsx_scope!($rsx, $($rest)*);
+    };
+
+    ($rsx:expr,) => {};
+}
+
+#[macro_export]
+macro_rules! rsx_child {
+    ($scope:expr, $text:literal @$d:expr; $($rest:tt)*) => {
+        {
+            $scope.view(Arc::new(move |ctx| ctx.draw_text($d, &format!($text))));
+        }
+
+        $crate::rsx_child!($scope, $($rest)*);
+    };
+
+    ($scope:expr, $text:literal $($rest:tt)*) => {
+        {
+            $scope.view(Arc::new(move |ctx| ctx.draw_text(Point { x: 0, y: 0 }, &format!($text))));
+        }
+
+        $crate::rsx_child!($scope, $($rest)*);
+    };
+
+    ($scope:expr, $component:ident ($ctx:ident, $view:ident) $body:block $($rest:tt)*) => {
+        {
+            $scope.child($component, Some(Arc::new(|$ctx, $view| $body)));
+        }
+
+        $crate::rsx_child!($scope, $($rest)*);
+    };
+
+    ($scope:expr, $component:ident $($rest:tt)*) => {
+        {
+            $scope.child($component, None);
+        }
+        $crate::rsx_child!($scope, $($rest)*);
+    };
+
+    ($rsx:expr,) => {};
+}
+
+#[macro_export]
+macro_rules! rsx_dep {
+    ($dep:ident as $dp:pat) => {
+        let $dp = $dep.clone();
+    };
+
+    ($dep:ident) => {
+        let $dep = $dep.clone();
+    };
 }

src/main.rs

@@ -1,28 +0,0 @@
-use osui::prelude::*;
-
-fn main() -> std::io::Result<()> {
-    let screen = Screen::new();
-
-    app().draw(&screen);
-
-    screen.run()
-}
-
-fn app() -> Rsx {
-    rsx! {
-        @transform! {
-            width: Full,
-            height: Full,
-        };
-        Div {
-            @transform! {
-                width: Full,
-                height: Full,
-            };
-            RoundedOutline {}
-
-            @Transform::center();
-            "Welcome To OSUI!"
-        } (0x000000)
-    }
-}

src/render.rs

@@ -0,0 +1,77 @@
+use crate::View;
+
+#[derive(Clone)]
+pub enum DrawInstruction {
+    Text(Point, String),
+    View(Area, View),
+    Child(Point, DrawContext),
+}
+
+#[derive(Clone)]
+pub struct Size {
+    pub width: u16,
+    pub height: u16,
+}
+
+#[derive(Clone)]
+pub struct Point {
+    pub x: u16,
+    pub y: u16,
+}
+
+#[derive(Clone)]
+pub struct Area {
+    pub x: u16,
+    pub y: u16,
+    pub width: u16,
+    pub height: u16,
+}
+
+#[derive(Clone)]
+pub struct DrawContext {
+    pub area: Area,
+    pub allocated: Area,
+    pub drawing: Vec<DrawInstruction>,
+}
+
+impl DrawContext {
+    pub fn new(area: Area) -> Self {
+        Self {
+            area,
+            allocated: Area {
+                x: u16::MAX,
+                y: u16::MAX,
+                width: 0,
+                height: 0,
+            },
+            drawing: Vec::new(),
+        }
+    }
+
+    pub fn allocate(&mut self, x: u16, y: u16, width: u16, height: u16) -> Area {
+        self.allocated.x = self.allocated.x.min(x);
+        self.allocated.y = self.allocated.y.min(y);
+        self.allocated.width = self.allocated.width.max(width);
+        self.allocated.height = self.allocated.height.max(height);
+
+        Area {
+            x,
+            y,
+            width,
+            height,
+        }
+    }
+
+    pub fn draw(&mut self, inst: DrawInstruction) {
+        self.drawing.push(inst);
+    }
+
+    pub fn draw_text(&mut self, point: Point, text: &str) {
+        self.drawing
+            .push(DrawInstruction::Text(point, text.to_string()));
+    }
+
+    pub fn draw_view(&mut self, area: Area, view: View) {
+        self.drawing.push(DrawInstruction::View(area, view));
+    }
+}

src/render_scope.rs

@@ -1,154 +0,0 @@
-use std::fmt::Debug;
-
-use crate::{
-    style::{RawTransform, Transform},
-    utils::{self, hex_ansi_bg},
-};
-
-#[derive(Clone)]
-enum RenderMethod {
-    Text(String),
-    TextColored(String, u32),
-    Rectangle(u16, u16, u32),
-}
-
-#[derive(Clone)]
-pub struct RenderScope {
-    transform: RawTransform,
-    render_stack: Vec<RenderMethod>,
-    parent_width: u16,
-    parent_height: u16,
-}
-
-impl RenderScope {
-    pub fn new() -> RenderScope {
-        RenderScope {
-            transform: RawTransform::new(),
-            render_stack: Vec::new(),
-            parent_width: 0,
-            parent_height: 0,
-        }
-    }
-
-    pub fn set_transform_raw(&mut self, transform: RawTransform) {
-        self.transform = transform;
-    }
-
-    pub fn set_transform(&mut self, transform: &Transform) {
-        transform.use_dimensions(self.parent_width, self.parent_height, &mut self.transform);
-        transform.use_position(self.parent_width, self.parent_height, &mut self.transform);
-    }
-
-    pub fn draw_text(&mut self, text: &str) {
-        self.render_stack.push(RenderMethod::Text(text.to_string()));
-        let (w, h) = utils::str_size(text);
-        self.transform.width = self.transform.width.max(w);
-        self.transform.height = self.transform.height.max(h);
-    }
-
-    pub fn draw_text_colored(&mut self, text: &str, color: u32) {
-        self.render_stack
-            .push(RenderMethod::TextColored(text.to_string(), color));
-        let (w, h) = utils::str_size(text);
-        self.transform.width = self.transform.width.max(w);
-        self.transform.height = self.transform.height.max(h);
-    }
-
-    pub fn draw_rect(&mut self, width: u16, height: u16, color: u32) {
-        self.render_stack
-            .push(RenderMethod::Rectangle(width, height, color));
-        self.transform.width = self.transform.width.max(width);
-        self.transform.height = self.transform.height.max(height);
-    }
-
-    pub fn draw(&self) {
-        for m in &self.render_stack {
-            match m {
-                RenderMethod::Text(t) => {
-                    utils::print(self.transform.x, self.transform.y, t);
-                }
-                RenderMethod::TextColored(t, c) => utils::print(
-                    self.transform.x,
-                    self.transform.y,
-                    &(utils::hex_ansi(*c) + t),
-                ),
-                RenderMethod::Rectangle(width, height, color) => {
-                    utils::print_liner(
-                        self.transform.x,
-                        self.transform.y,
-                        &hex_ansi_bg(*color),
-                        &std::iter::repeat(" ".repeat(*width as usize))
-                            .take(*height as usize)
-                            .collect::<Vec<_>>()
-                            .join("\n"),
-                    );
-                }
-            }
-        }
-    }
-
-    pub fn clear(&mut self) {
-        self.render_stack.clear();
-        self.transform.width = 0;
-        self.transform.height = 0;
-        self.transform.x = 0;
-        self.transform.y = 0;
-    }
-
-    pub fn get_size(&self) -> (u16, u16) {
-        (self.transform.width, self.transform.height)
-    }
-
-    pub fn get_size_or(&self, width: u16, height: u16) -> (u16, u16) {
-        (
-            if self.transform.width == 0 {
-                width
-            } else {
-                self.transform.width
-            },
-            if self.transform.height == 0 {
-                height
-            } else {
-                self.transform.height
-            },
-        )
-    }
-
-    pub fn get_size_or_parent(&self) -> (u16, u16) {
-        (
-            if self.transform.width == 0 {
-                self.parent_width
-            } else {
-                self.transform.width
-            },
-            if self.transform.height == 0 {
-                self.parent_height
-            } else {
-                self.transform.height
-            },
-        )
-    }
-
-    pub fn get_parent_size(&self) -> (u16, u16) {
-        (self.parent_width, self.parent_height)
-    }
-
-    pub fn set_parent_size(&mut self, width: u16, height: u16) {
-        self.parent_width = width;
-        self.parent_height = height;
-    }
-
-    pub fn get_transform_mut(&mut self) -> &mut RawTransform {
-        &mut self.transform
-    }
-
-    pub fn get_transform(&self) -> &RawTransform {
-        &self.transform
-    }
-}
-
-impl Debug for RenderScope {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "RenderScope")
-    }
-}

src/state.rs

@@ -1,97 +1,213 @@
 use std::{
+    any::Any,
     fmt::{Debug, Display, Formatter, Result as FmtResult},
     ops::{Deref, DerefMut},
     sync::{Arc, Mutex, MutexGuard},
 };
 
-#[derive(Debug, Clone)]
-pub struct State<T> {
-    inner: Arc<Mutex<Inner<T>>>,
-}
+use crate::prelude::Context;
+
+#[derive(Clone)]
+pub struct HookEffect(Arc<Mutex<dyn FnMut() + Send + Sync>>);
 
 #[derive(Debug)]
-pub struct Inner<T> {
-    value: T,
-    dependencies: usize,
-    changed: usize,
+pub struct State<T> {
+    value: Arc<Mutex<T>>,
+    dependents: Arc<Mutex<Vec<HookEffect>>>,
 }
 
+pub struct Inner<'a, T> {
+    value: MutexGuard<'a, T>,
+    dependents: Arc<Mutex<Vec<HookEffect>>>,
+    updated: bool,
+}
+
+#[derive(Debug, Clone)]
+pub struct Mount(Arc<Mutex<bool>>, Arc<Mutex<Vec<HookEffect>>>);
+
 pub fn use_state<T>(v: T) -> State<T> {
     State {
-        inner: Arc::new(Mutex::new(Inner {
-            value: v,
-            dependencies: 0,
-            changed: 0,
-        })),
+        value: Arc::new(Mutex::new(v)),
+        dependents: Arc::new(Mutex::new(Vec::new())),
     }
 }
 
 impl<T: Clone> State<T> {
     /// Gets the cloned value, recommended for preventing deadlocks
     pub fn get_dl(&self) -> T {
-        self.inner.lock().unwrap().value.clone()
+        self.value.lock().unwrap().clone()
     }
 }
 
 impl<T> State<T> {
     /// Gets a lock on the state for read/write access.
-    pub fn get(&self) -> MutexGuard<'_, Inner<T>> {
-        self.inner.lock().unwrap()
+    pub fn get(&self) -> Inner<'_, T> {
+        Inner {
+            value: self.value.lock().unwrap(),
+            dependents: self.dependents.clone(),
+            updated: false,
+        }
     }
 
     /// Sets the value and marks it as changed.
     pub fn set(&self, v: T) {
-        let mut inner = self.inner.lock().unwrap();
-        inner.value = v;
-        inner.changed = inner.dependencies;
+        *self.value.lock().unwrap() = v;
+        self.update();
     }
 
-    /// Marks the state as updated.
     pub fn update(&self) {
-        let mut inner = self.inner.lock().unwrap();
-        inner.changed = inner.dependencies;
+        for d in self.dependents.lock().unwrap().iter() {
+            d.call();
         }
-}
-
-impl<T: Debug + Send + Sync> DependencyHandler for State<T> {
-    fn check(&self) -> bool {
-        let mut inner = self.inner.lock().unwrap();
-        let i = inner.changed > 0;
-        if i {
-            inner.changed -= 1;
-        }
-        i
     }
 
-    fn add(&self) {
-        let mut inner = self.inner.lock().unwrap();
-        inner.dependencies += 1;
+    pub fn clone(&self) -> Self {
+        Self {
+            dependents: self.dependents.clone(),
+            value: self.value.clone(),
+        }
     }
 }
 
 impl<T: Display> Display for State<T> {
     fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
-        let inner = self.inner.lock().unwrap();
-        write!(f, "{}", inner.value)
+        write!(f, "{}", self.value.lock().unwrap())
     }
 }
 
-impl<T> Deref for Inner<T> {
-    type Target = T;
+impl Debug for HookEffect {
+    fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
+        write!(f, "HookEffect")
+    }
+}
 
+impl HookEffect {
+    pub fn new<F: Fn() + Send + Sync + 'static>(f: F) -> Self {
+        Self(Arc::new(Mutex::new(f)))
+    }
+
+    pub fn call(&self) {
+        (self.0.lock().unwrap())()
+    }
+}
+
+impl<T> Drop for Inner<'_, T> {
+    fn drop(&mut self) {
+        if self.updated {
+            for d in self.dependents.lock().unwrap().iter() {
+                d.call();
+            }
+        }
+    }
+}
+
+impl<T> Deref for Inner<'_, T> {
+    type Target = T;
     fn deref(&self) -> &Self::Target {
         &self.value
     }
 }
 
-impl<T> DerefMut for Inner<T> {
+impl<T> DerefMut for Inner<'_, T> {
     fn deref_mut(&mut self) -> &mut Self::Target {
-        self.changed = self.dependencies;
+        self.updated = true;
         &mut self.value
     }
 }
 
-pub trait DependencyHandler: std::fmt::Debug + Send + Sync {
-    fn add(&self);
-    fn check(&self) -> bool;
+pub trait HookDependency {
+    fn on_update(&self, hook: HookEffect);
+}
+
+impl<T> HookDependency for State<T> {
+    fn on_update(&self, hook: HookEffect) {
+        self.dependents.lock().unwrap().push(hook);
+    }
+}
+
+impl HookDependency for Mount {
+    fn on_update(&self, hook: HookEffect) {
+        if *self.0.lock().unwrap() {
+            hook.call();
+        } else {
+            self.1.lock().unwrap().push(hook);
+        }
+    }
+}
+
+impl Mount {
+    pub fn mount(&self) {
+        *self.0.lock().unwrap() = true;
+        for hook_effect in self.1.lock().unwrap().iter() {
+            hook_effect.call();
+        }
+        self.1.lock().unwrap().clear();
+    }
+}
+
+pub fn use_effect<F: FnMut() + Send + Sync + 'static>(f: F, dependencies: &[&dyn HookDependency]) {
+    let f = Arc::new(Mutex::new(f));
+    let hook = HookEffect(Arc::new(Mutex::new({
+        let f = f.clone();
+        move || {
+            let f = f.clone();
+            std::thread::spawn(move || (f.lock().unwrap())());
+        }
+    })));
+
+    for d in dependencies {
+        d.on_update(hook.clone());
+    }
+}
+
+pub fn use_mount() -> Mount {
+    Mount(Arc::new(Mutex::new(true)), Arc::new(Mutex::new(Vec::new())))
+}
+
+pub fn use_mount_manual() -> Mount {
+    Mount(
+        Arc::new(Mutex::new(false)),
+        Arc::new(Mutex::new(Vec::new())),
+    )
+}
+
+pub fn use_sync_state<
+    T: Send + Sync + 'static,
+    E: Any + 'static,
+    D: Fn(&E) -> T + Send + Sync + 'static,
+>(
+    cx: &Arc<Context>,
+    v: T,
+    decoder: D,
+) -> State<T> {
+    let state = use_state(v);
+
+    cx.on_event({
+        let state = state.clone();
+        move |_, v: &E| state.set(decoder(v))
+    });
+
+    state
+}
+
+pub fn use_sync_effect<
+    T: Send + Sync + 'static,
+    Ev: 'static,
+    E: Fn(&State<T>) -> Ev + Send + Sync + 'static,
+>(
+    cx: &Arc<Context>,
+    state: &State<T>,
+    encoder: E,
+    deps: &[&dyn HookDependency],
+) {
+    use_effect(
+        {
+            let state = state.clone();
+            let cx = cx.clone();
+            move || {
+                cx.emit_event(&encoder(&state));
+            }
+        },
+        deps,
+    );
 }

src/style.rs

@@ -1,153 +0,0 @@
-use crate::component;
-
-#[derive(Debug, Clone)]
-pub struct RawTransform {
-    pub x: u16,
-    pub y: u16,
-    pub width: u16,
-    pub height: u16,
-}
-
-#[derive(Debug, Clone)]
-pub enum Position {
-    Const(u16),
-    Center,
-    End,
-}
-
-#[derive(Debug, Clone)]
-pub enum Dimension {
-    Full,
-    Content,
-    Const(u16),
-}
-
-component!(Transform {
-    pub x: Position,
-    pub y: Position,
-    pub mx: i32,
-    pub my: i32,
-    pub width: Dimension,
-    pub height: Dimension,
-});
-
-impl Transform {
-    pub fn new() -> Transform {
-        Transform {
-            x: Position::Const(0),
-            y: Position::Const(0),
-            mx: 0,
-            my: 0,
-            width: Dimension::Content,
-            height: Dimension::Content,
-        }
-    }
-
-    pub fn center() -> Transform {
-        Transform {
-            x: Position::Center,
-            y: Position::Center,
-            mx: 0,
-            my: 0,
-            width: Dimension::Content,
-            height: Dimension::Content,
-        }
-    }
-
-    pub fn bottom(mut self) -> Self {
-        self.y = Position::End;
-        self
-    }
-
-    pub fn right(mut self) -> Self {
-        self.x = Position::End;
-        self
-    }
-
-    pub fn margin(mut self, x: i32, y: i32) -> Self {
-        self.mx = x;
-        self.my = y;
-        self
-    }
-
-    pub fn dimensions(mut self, width: u16, height: u16) -> Self {
-        self.width = Dimension::Const(width);
-        self.height = Dimension::Const(height);
-        self
-    }
-
-    pub fn use_dimensions(&self, parent_width: u16, parent_height: u16, raw: &mut RawTransform) {
-        self.width.use_dimension(parent_width, &mut raw.width);
-        self.height.use_dimension(parent_height, &mut raw.height);
-    }
-
-    pub fn use_position(&self, parent_width: u16, parent_height: u16, raw: &mut RawTransform) {
-        self.x
-            .use_position(raw.width, parent_width, self.mx, &mut raw.x);
-        self.y
-            .use_position(raw.height, parent_height, self.my, &mut raw.y);
-    }
-}
-
-impl RawTransform {
-    pub fn new() -> RawTransform {
-        RawTransform {
-            x: 0,
-            y: 0,
-            width: 0,
-            height: 0,
-        }
-    }
-}
-
-impl Dimension {
-    pub fn use_dimension(&self, parent: u16, r: &mut u16) {
-        match self {
-            Self::Full => *r = parent,
-            Self::Content => {}
-            Self::Const(n) => *r = *n,
-        }
-    }
-}
-
-impl Position {
-    pub fn use_position(&self, size: u16, parent: u16, m: i32, r: &mut u16) {
-        let base = match self {
-            Self::Center => {
-                if parent < size {
-                    return;
-                }
-                (parent - size) / 2
-            }
-            Self::Const(n) => *n,
-            Self::End => {
-                if parent < size {
-                    return;
-                }
-                parent - size
-            }
-        };
-
-        let adjusted = if m >= 0 {
-            base.checked_add(m as u16)
-        } else {
-            base.checked_sub((-m) as u16)
-        };
-
-        if let Some(val) = adjusted {
-            *r = val;
-        }
-    }
-}
-
-impl From<u16> for Position {
-    fn from(value: u16) -> Self {
-        Self::Const(value)
-    }
-}
-
-impl From<u16> for Dimension {
-    fn from(value: u16) -> Self {
-        Self::Const(value)
-    }
-}

src/utils.rs

@@ -1,122 +0,0 @@
-//! The `utils` module provides utility functions for terminal manipulation
-//! and string operations, designed to enhance terminal-based applications.
-
-use std::io::{self, Write};
-
-/// Clears the terminal screen and moves the cursor to the top-left corner.
-///
-/// # Returns
-/// A `io::Result<()>` indicating whether the operation succeeded.
-///
-/// # Example
-/// ```
-/// utils::clear().unwrap();
-/// ```
-pub fn clear() -> io::Result<()> {
-    print!("\x1B[2J\x1B[H");
-    std::io::stdout().flush()
-}
-
-/// Hides the terminal cursor.
-///
-/// # Returns
-/// A `io::Result<()>` indicating whether the operation succeeded.
-///
-/// # Example
-/// ```
-/// utils::hide_cursor().unwrap();
-/// ```
-pub fn hide_cursor() -> io::Result<()> {
-    print!("\x1b[?25l");
-    std::io::stdout().flush()
-}
-
-/// Shows the terminal cursor.
-///
-/// # Returns
-/// A `io::Result<()>` indicating whether the operation succeeded.
-///
-/// # Example
-/// ```
-/// utils::show_cursor().unwrap();
-/// ```
-pub fn show_cursor() -> io::Result<()> {
-    print!("\x1B[?25h");
-    std::io::stdout().flush()
-}
-
-/// Flushes the terminal's stdout buffer.
-///
-/// # Returns
-/// A `io::Result<()>` indicating whether the operation succeeded.
-///
-/// # Example
-/// ```
-/// utils::flush().unwrap();
-/// ```
-pub fn flush() -> io::Result<()> {
-    std::io::stdout().flush()
-}
-
-/// Calculates the width and height of a string when rendered in a terminal.
-///
-/// # Arguments
-/// - `s`: The input string.
-///
-/// # Returns
-/// A tuple `(u16, u16)` where:
-/// - The first value is the maximum width of the string in characters.
-/// - The second value is the height of the string in lines.
-///
-/// # Example
-/// ```
-/// let (width, height) = utils::str_size("Hello\nWorld!");
-/// assert_eq!((5, 2), (width, height));
-/// ```
-pub fn str_size(s: &str) -> (u16, u16) {
-    let mut height = 1;
-    let mut max_width = 0;
-    let mut current_width = 0;
-
-    for b in s.bytes() {
-        if b == b'\n' {
-            height += 1;
-            max_width = max_width.max(current_width);
-            current_width = 0;
-        } else {
-            current_width += 1;
-        }
-    }
-
-    max_width = max_width.max(current_width);
-
-    (max_width, height)
-}
-
-pub fn hex_ansi(hex: u32) -> String {
-    let r = ((hex >> 16) & 0xFF) as u8;
-    let g = ((hex >> 8) & 0xFF) as u8;
-    let b = (hex & 0xFF) as u8;
-    format!("\x1b[38;2;{r};{g};{b}m")
-}
-
-pub fn hex_ansi_bg(hex: u32) -> String {
-    let r = ((hex >> 16) & 0xFF) as u8;
-    let g = ((hex >> 8) & 0xFF) as u8;
-    let b = (hex & 0xFF) as u8;
-    format!("\x1b[48;2;{r};{g};{b}m")
-}
-
-pub(crate) fn print(x: u16, y: u16, text: &str) {
-    for (i, line) in text.lines().enumerate() {
-        print!("\x1b[{};{}H{line}\x1b[0m", y + i as u16 + 1, x + 1);
-        flush().unwrap();
-    }
-}
-
-pub(crate) fn print_liner(x: u16, y: u16, liner: &str, text: &str) {
-    for (i, line) in text.lines().enumerate() {
-        print!("\x1b[{};{}H{liner}{line}\x1b[0m", y + i as u16 + 1, x + 1);
-        flush().unwrap();
-    }
-}

src/widget.rs

@@ -1,140 +0,0 @@
-use std::{
-    any::{Any, TypeId},
-    collections::HashMap,
-    sync::{Arc, Mutex},
-};
-
-use crate::{render_scope::RenderScope, state::DependencyHandler};
-
-pub type BoxedElement = Box<dyn Element + Send + Sync>;
-pub type BoxedComponent = Box<dyn Component + Send + Sync>;
-
-pub trait Element: Send + Sync {
-    #[allow(unused)]
-    fn render(&mut self, scope: &mut RenderScope) {}
-    #[allow(unused)]
-    fn after_render(&mut self, scope: &mut RenderScope) {}
-    #[allow(unused)]
-    fn draw_child(&self, element: &Arc<Widget>) {}
-    fn as_any(&self) -> &dyn Any;
-    fn as_any_mut(&mut self) -> &mut dyn Any;
-}
-
-pub trait Component: Send + Sync {
-    fn as_any(&self) -> &dyn Any;
-    fn as_any_mut(&mut self) -> &mut dyn Any;
-}
-
-pub struct Widget(
-    pub Mutex<BoxedElement>,
-    Mutex<HashMap<TypeId, BoxedComponent>>,
-    Mutex<Box<dyn FnMut() -> WidgetLoad + Send + Sync>>,
-    Mutex<Vec<Box<dyn DependencyHandler>>>,
-    Mutex<Option<Box<dyn FnMut(WidgetLoad) -> WidgetLoad + Send + Sync>>>,
-);
-
-impl Widget {
-    pub fn new<F: FnMut() -> WidgetLoad + 'static + Send + Sync>(mut e: F) -> Self {
-        let wl = e();
-        Self(
-            Mutex::new(wl.0),
-            Mutex::new(wl.1),
-            Mutex::new(Box::new(e)),
-            Mutex::new(Vec::new()),
-            Mutex::new(None),
-        )
-    }
-
-    pub fn inject<F: FnMut(WidgetLoad) -> WidgetLoad + 'static + Send + Sync>(
-        self: &Arc<Self>,
-        f: F,
-    ) {
-        {
-            *self.4.lock().unwrap() = Some(Box::new(f));
-        }
-        self.refresh();
-    }
-
-    pub fn refresh(self: &Arc<Self>) {
-        let w = (self.2.lock().unwrap())();
-        match &mut *self.4.lock().unwrap() {
-            Some(inject) => {
-                let w = inject(w);
-                *self.0.lock().unwrap() = w.0;
-                *self.1.lock().unwrap() = w.1;
-            }
-            None => {
-                *self.0.lock().unwrap() = w.0;
-                *self.1.lock().unwrap() = w.1;
-            }
-        }
-    }
-
-    pub fn auto_refresh(self: &Arc<Self>) {
-        for d in self.3.lock().unwrap().iter() {
-            if d.check() {
-                self.refresh();
-            }
-        }
-    }
-
-    pub fn dependency<D: DependencyHandler + 'static>(self: &Arc<Self>, d: D) -> &Arc<Self> {
-        d.add();
-        self.3.lock().unwrap().push(Box::new(d));
-        self
-    }
-
-    pub fn dependency_box(self: &Arc<Self>, d: Box<dyn DependencyHandler>) -> &Arc<Self> {
-        d.add();
-        self.3.lock().unwrap().push(d);
-        self
-    }
-
-    pub fn component<C: Component + 'static>(self: &Arc<Self>, c: C) -> &Arc<Self> {
-        self.1
-            .lock()
-            .unwrap()
-            .entry(c.type_id())
-            .or_insert_with(|| Box::new(c));
-        self
-    }
-
-    pub fn set_component<C: Component + 'static>(self: &Arc<Self>, c: C) -> &Arc<Self> {
-        self.1.lock().unwrap().insert(c.type_id(), Box::new(c));
-        self
-    }
-
-    pub fn get<C: Component + 'static + Clone>(&self) -> Option<C> {
-        self.1
-            .lock()
-            .unwrap()
-            .get(&TypeId::of::<C>())
-            .and_then(|c| c.as_any().downcast_ref::<C>())
-            .map(|c| c.clone())
-    }
-}
-
-pub struct WidgetLoad(BoxedElement, HashMap<TypeId, BoxedComponent>);
-
-impl WidgetLoad {
-    pub fn new<E: Element + 'static>(e: E) -> Self {
-        Self(Box::new(e), HashMap::new())
-    }
-
-    pub fn component<C: Component + 'static>(mut self, c: C) -> Self {
-        self.1.entry(c.type_id()).or_insert_with(|| Box::new(c));
-        self
-    }
-
-    pub fn set_component<C: Component + 'static>(mut self, c: C) -> Self {
-        self.1.insert(c.type_id(), Box::new(c));
-        self
-    }
-
-    pub fn get<C: Component + 'static + Clone>(&self) -> Option<C> {
-        self.1
-            .get(&TypeId::of::<C>())
-            .and_then(|c| c.as_any().downcast_ref::<C>())
-            .map(|c| c.clone())
-    }
-}