Split crates

crates/engine_window/src/state.rs

@@ -0,0 +1,63 @@
+use std::sync::Arc;
+
+use bevy_app::{App, PluginsState};
+use bevy_ecs::world::World;
+use winit::{
+    application::ApplicationHandler, event::WindowEvent, event_loop::ActiveEventLoop,
+    window::WindowId,
+};
+
+use super::{config::WindowConfig, raw_handle::WindowWrapper};
+
+pub struct WindowState {
+    app: App,
+}
+
+impl WindowState {
+    pub fn new(app: App) -> Self {
+        Self { app }
+    }
+
+    fn world(&self) -> &World {
+        self.app.world()
+    }
+}
+
+impl ApplicationHandler for WindowState {
+    fn resumed(&mut self, event_loop: &ActiveEventLoop) {
+        let window_config = self.world().get_resource::<WindowConfig>().unwrap();
+
+        let window = event_loop.create_window(window_config.into()).unwrap();
+        self.app
+            .world_mut()
+            .insert_resource(WindowWrapper(Arc::new(window)));
+    }
+
+    fn new_events(&mut self, event_loop: &ActiveEventLoop, cause: winit::event::StartCause) {
+        if self.app.plugins_state() == PluginsState::Ready {
+            self.app.finish();
+            self.app.cleanup();
+        }
+    }
+
+    fn window_event(&mut self, event_loop: &ActiveEventLoop, _id: WindowId, event: WindowEvent) {
+        match event {
+            WindowEvent::CloseRequested => {
+                log::debug!("The close button was pressed; stopping");
+                event_loop.exit();
+            }
+            WindowEvent::RedrawRequested => {
+                if self.app.plugins_state() == PluginsState::Cleaned {
+                    self.app.update();
+                }
+
+                let window_wrapper = self.app.world().get_resource::<WindowWrapper>().unwrap();
+
+                window_wrapper.0.request_redraw();
+            }
+            _ => {}
+        }
+    }
+
+    fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {}
+}