Checkpoint

crates/gpui3/src/app.rs

@@ -289,6 +289,18 @@ impl MainThread<AppContext> {
         })
     }
 
+    pub(crate) fn update_window<R>(
+        &mut self,
+        id: WindowId,
+        update: impl FnOnce(&mut WindowContext) -> R,
+    ) -> Result<R> {
+        self.0.update_window(id, |cx| {
+            update(unsafe {
+                std::mem::transmute::<&mut WindowContext, &mut MainThread<WindowContext>>(cx)
+            })
+        })
+    }
+
     pub(crate) fn platform(&self) -> &dyn Platform {
         self.platform.borrow_on_main_thread()
     }

crates/gpui3/src/gpui3.rs

@@ -21,6 +21,7 @@ pub use color::*;
 pub use element::*;
 pub use elements::*;
 pub use executor::*;
+use futures::Future;
 pub use geometry::*;
 pub use gpui3_macros::*;
 pub use platform::*;

crates/gpui3/src/platform/mac/metal_renderer.rs

@@ -103,6 +103,8 @@ impl MetalRenderer {
     }
 
     pub fn draw(&mut self, scene: &Scene) {
+        dbg!(scene);
+
         let layer = self.layer.clone();
         let viewport_size = layer.drawable_size();
         let viewport_size: Size<DevicePixels> = size(

crates/gpui3/src/platform/mac/window.rs

@@ -1358,6 +1358,7 @@ extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
         let window_state = get_window_state(this);
         let mut window_state = window_state.as_ref().lock();
         if let Some(scene) = window_state.scene_to_render.take() {
+            dbg!("render", &scene);
             window_state.renderer.draw(&scene);
         }
     }

crates/gpui3/src/window.rs

@@ -4,7 +4,8 @@ use crate::{
     StackContext, Style, TaffyLayoutEngine, WeakHandle, WindowOptions,
 };
 use anyhow::Result;
-use std::{any::TypeId, marker::PhantomData, sync::Arc};
+use futures::Future;
+use std::{any::TypeId, marker::PhantomData, mem, sync::Arc};
 use util::ResultExt;
 
 pub struct AnyWindow {}
@@ -125,6 +126,23 @@ impl<'a, 'w> WindowContext<'a, 'w> {
         &mut self.window.scene
     }
 
+    pub fn run_on_main<R>(
+        &self,
+        f: impl FnOnce(&mut MainThread<WindowContext>) -> R + Send + 'static,
+    ) -> impl Future<Output = Result<R>>
+    where
+        R: Send + 'static,
+    {
+        let id = self.window.handle.id;
+        self.app.run_on_main(move |cx| {
+            cx.update_window(id, |cx| {
+                f(unsafe {
+                    mem::transmute::<&mut WindowContext, &mut MainThread<WindowContext>>(cx)
+                })
+            })
+        })
+    }
+
     pub(crate) fn draw(&mut self) -> Result<()> {
         let unit_entity = self.unit_entity.clone();
         self.update_entity(&unit_entity, |_, cx| {
@@ -135,19 +153,19 @@ impl<'a, 'w> WindowContext<'a, 'w> {
                 .layout_engine
                 .compute_layout(root_layout_id, available_space)?;
             let layout = cx.window.layout_engine.layout(root_layout_id)?;
+
+            dbg!(&layout.bounds);
+
             root_view.paint(layout, &mut (), &mut frame_state, cx)?;
             cx.window.root_view = Some(root_view);
             let scene = cx.window.scene.take();
 
-            dbg!(&scene);
-
-            // // todo!
-            // self.run_on_main(|cx| {
-            //     cx.window
-            //         .platform_window
-            //         .borrow_on_main_thread()
-            //         .draw(scene);
-            // });
+            let _ = cx.run_on_main(|cx| {
+                cx.window
+                    .platform_window
+                    .borrow_on_main_thread()
+                    .draw(scene);
+            });
 
             cx.window.dirty = false;
             Ok(())

crates/storybook2/src/workspace.rs

@@ -27,7 +27,9 @@ impl Workspace {
 
     fn render(&mut self, cx: &mut ViewContext<Self>) -> impl Element<State = Self> {
         let theme = rose_pine_dawn();
-        div().fill(theme.middle.positive.default.background)
+        div()
+            .size_full()
+            .fill(theme.middle.positive.default.background)
 
         // TODO: Implement style.
         //.size_full().fill(gpui3::hsla(0.83, 1., 0.5, 1.))