From 557408e056be1eca8da47c6b65f88a6b7c77de8c Mon Sep 17 00:00:00 2001
From: B_head <b_head@outlook.jp>
Date: Sat, 8 Jul 2023 13:17:35 +0900
Subject: [PATCH] Adjust schedules to add systems

---
 crates/bevy_asset/src/debug_asset_server.rs        |  2 +-
 .../diagnostic/asset_count_diagnostics_plugin.rs   |  2 +-
 crates/bevy_asset/src/lib.rs                       | 14 +++++++-------
 crates/bevy_audio/src/lib.rs                       |  4 ++--
 crates/bevy_core/src/lib.rs                        |  2 +-
 .../src/entity_count_diagnostics_plugin.rs         |  2 +-
 .../src/frame_time_diagnostics_plugin.rs           |  2 +-
 .../bevy_diagnostic/src/log_diagnostics_plugin.rs  |  4 ++--
 .../src/system_information_diagnostics_plugin.rs   |  2 +-
 crates/bevy_gilrs/src/lib.rs                       |  6 +++---
 crates/bevy_gizmos/src/lib.rs                      |  6 +++---
 crates/bevy_input/src/lib.rs                       |  6 +++---
 crates/bevy_render/src/mesh/morph.rs               |  4 ++--
 crates/bevy_render/src/render_resource/texture.rs  |  1 +
 crates/bevy_render/src/renderer/render_device.rs   |  2 +-
 crates/bevy_render/src/view/visibility/mod.rs      |  8 ++++----
 crates/bevy_render/src/view/window/screenshot.rs   |  1 +
 crates/bevy_time/src/lib.rs                        |  2 +-
 crates/bevy_ui/src/lib.rs                          |  2 +-
 crates/bevy_window/src/lib.rs                      |  6 +++---
 crates/bevy_winit/src/accessibility.rs             | 14 +++++---------
 crates/bevy_winit/src/lib.rs                       |  4 ++--
 crates/bevy_winit/src/web_resize.rs                |  4 ++--
 crates/bevy_winit/src/winit_handler.rs             |  2 +-
 24 files changed, 50 insertions(+), 52 deletions(-)

diff --git a/crates/bevy_asset/src/debug_asset_server.rs b/crates/bevy_asset/src/debug_asset_server.rs
index d858f083e3659..3c4394d7ab945 100644
--- a/crates/bevy_asset/src/debug_asset_server.rs
+++ b/crates/bevy_asset/src/debug_asset_server.rs
@@ -76,7 +76,7 @@ impl Plugin for DebugAssetServerPlugin {
             watch_for_changes: ChangeWatcher::with_delay(Duration::from_millis(200)),
         });
         app.insert_non_send_resource(DebugAssetApp(debug_asset_app));
-        app.add_systems(Update, run_debug_asset_app);
+        app.add_systems(FrameReady, run_debug_asset_app);
     }
 }
 
diff --git a/crates/bevy_asset/src/diagnostic/asset_count_diagnostics_plugin.rs b/crates/bevy_asset/src/diagnostic/asset_count_diagnostics_plugin.rs
index dafd21567347b..137239365c8c3 100644
--- a/crates/bevy_asset/src/diagnostic/asset_count_diagnostics_plugin.rs
+++ b/crates/bevy_asset/src/diagnostic/asset_count_diagnostics_plugin.rs
@@ -21,7 +21,7 @@ impl<T: Asset> Default for AssetCountDiagnosticsPlugin<T> {
 impl<T: Asset> Plugin for AssetCountDiagnosticsPlugin<T> {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, Self::setup_system)
-            .add_systems(Update, Self::diagnostic_system);
+            .add_systems(FrameReady, Self::diagnostic_system);
     }
 }
 
diff --git a/crates/bevy_asset/src/lib.rs b/crates/bevy_asset/src/lib.rs
index 4bf8448f602f6..284050f0fcf9f 100644
--- a/crates/bevy_asset/src/lib.rs
+++ b/crates/bevy_asset/src/lib.rs
@@ -47,8 +47,8 @@ pub use loader::*;
 pub use path::*;
 pub use reflect::*;
 
-use bevy_app::{prelude::*, UpdateFlowOrder};
-use bevy_ecs::schedule::ScheduleLabel;
+use bevy_app::prelude::*;
+use bevy_ecs::{schedule::ScheduleLabel, world::World};
 use bevy_utils::Duration;
 
 /// Asset storages are updated.
@@ -132,7 +132,6 @@ impl Plugin for AssetPlugin {
         app.register_type::<HandleId>();
         app.register_type::<AssetPath>();
 
-        app.add_systems(PreUpdate, asset_server::free_unused_assets_system);
         app.init_schedule(LoadAssets);
         app.init_schedule(AssetEvents);
 
@@ -141,9 +140,10 @@ impl Plugin for AssetPlugin {
             all(not(target_arch = "wasm32"), not(target_os = "android"))
         ))]
         app.add_systems(LoadAssets, io::filesystem_watcher_system);
-
-        let mut order = app.world.resource_mut::<UpdateFlowOrder>();
-        order.insert_after(First, LoadAssets);
-        order.insert_after(PostUpdate, AssetEvents);
+        app.add_systems(LoadAssets, asset_server::free_unused_assets_system);
+        app.add_systems(FrameReady, |world: &mut World| {
+            world.run_schedule(LoadAssets);
+            world.run_schedule(AssetEvents);
+        });
     }
 }
diff --git a/crates/bevy_audio/src/lib.rs b/crates/bevy_audio/src/lib.rs
index 6544c789698fc..b5e9c3f6887eb 100644
--- a/crates/bevy_audio/src/lib.rs
+++ b/crates/bevy_audio/src/lib.rs
@@ -64,7 +64,7 @@ impl Plugin for AudioPlugin {
             .add_asset::<SpatialAudioSink>()
             .init_resource::<Audio<AudioSource>>()
             .insert_resource(self.global_volume)
-            .add_systems(PostUpdate, play_queued_audio_system::<AudioSource>);
+            .add_systems(FrameReady, play_queued_audio_system::<AudioSource>);
 
         #[cfg(any(feature = "mp3", feature = "flac", feature = "wav", feature = "vorbis"))]
         app.init_asset_loader::<AudioLoader>();
@@ -80,6 +80,6 @@ impl AddAudioSource for App {
         self.add_asset::<T>()
             .init_resource::<Audio<T>>()
             .init_resource::<AudioOutput<T>>()
-            .add_systems(PostUpdate, play_queued_audio_system::<T>)
+            .add_systems(FrameReady, play_queued_audio_system::<T>)
     }
 }
diff --git a/crates/bevy_core/src/lib.rs b/crates/bevy_core/src/lib.rs
index d21b40d7a96c2..6e96343d8d3fd 100644
--- a/crates/bevy_core/src/lib.rs
+++ b/crates/bevy_core/src/lib.rs
@@ -114,7 +114,7 @@ impl Plugin for TaskPoolPlugin {
         self.task_pool_options.create_default_pools();
 
         #[cfg(not(target_arch = "wasm32"))]
-        _app.add_systems(Last, tick_global_task_pools);
+        _app.add_systems(FrameReady, tick_global_task_pools);
     }
 }
 /// A dummy type that is [`!Send`](Send), to force systems to run on the main thread.
diff --git a/crates/bevy_diagnostic/src/entity_count_diagnostics_plugin.rs b/crates/bevy_diagnostic/src/entity_count_diagnostics_plugin.rs
index 8999163aa9720..e2989d0134421 100644
--- a/crates/bevy_diagnostic/src/entity_count_diagnostics_plugin.rs
+++ b/crates/bevy_diagnostic/src/entity_count_diagnostics_plugin.rs
@@ -10,7 +10,7 @@ pub struct EntityCountDiagnosticsPlugin;
 impl Plugin for EntityCountDiagnosticsPlugin {
     fn build(&self, app: &mut App) {
         app.register_diagnostic(Diagnostic::new(Self::ENTITY_COUNT, "entity_count", 20))
-            .add_systems(Update, Self::diagnostic_system);
+            .add_systems(FrameReady, Self::diagnostic_system);
     }
 }
 
diff --git a/crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs b/crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs
index a17a6a19d4c13..703ad54949169 100644
--- a/crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs
+++ b/crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs
@@ -17,7 +17,7 @@ impl Plugin for FrameTimeDiagnosticsPlugin {
         .register_diagnostic(
             Diagnostic::new(Self::FRAME_COUNT, "frame_count", 1).with_smoothing_factor(0.0),
         )
-        .add_systems(Update, Self::diagnostic_system);
+        .add_systems(FrameReady, Self::diagnostic_system);
     }
 }
 
diff --git a/crates/bevy_diagnostic/src/log_diagnostics_plugin.rs b/crates/bevy_diagnostic/src/log_diagnostics_plugin.rs
index c59d128d890aa..6fc18ee2521bd 100644
--- a/crates/bevy_diagnostic/src/log_diagnostics_plugin.rs
+++ b/crates/bevy_diagnostic/src/log_diagnostics_plugin.rs
@@ -37,9 +37,9 @@ impl Plugin for LogDiagnosticsPlugin {
         });
 
         if self.debug {
-            app.add_systems(PostUpdate, Self::log_diagnostics_debug_system);
+            app.add_systems(FrameReady, Self::log_diagnostics_debug_system);
         } else {
-            app.add_systems(PostUpdate, Self::log_diagnostics_system);
+            app.add_systems(FrameReady, Self::log_diagnostics_system);
         }
     }
 }
diff --git a/crates/bevy_diagnostic/src/system_information_diagnostics_plugin.rs b/crates/bevy_diagnostic/src/system_information_diagnostics_plugin.rs
index 5380bdbda2e4b..e6ce8b79bc517 100644
--- a/crates/bevy_diagnostic/src/system_information_diagnostics_plugin.rs
+++ b/crates/bevy_diagnostic/src/system_information_diagnostics_plugin.rs
@@ -15,7 +15,7 @@ pub struct SystemInformationDiagnosticsPlugin;
 impl Plugin for SystemInformationDiagnosticsPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, internal::setup_system)
-            .add_systems(Update, internal::diagnostic_system);
+            .add_systems(FrameReady, internal::diagnostic_system);
     }
 }
 
diff --git a/crates/bevy_gilrs/src/lib.rs b/crates/bevy_gilrs/src/lib.rs
index 1afcf515f6613..114b46a3357c9 100644
--- a/crates/bevy_gilrs/src/lib.rs
+++ b/crates/bevy_gilrs/src/lib.rs
@@ -4,7 +4,7 @@ mod converter;
 mod gilrs_system;
 mod rumble;
 
-use bevy_app::{App, Plugin, PostUpdate, PreStartup, PreUpdate};
+use bevy_app::{App, Control, FrameReady, Plugin, PreStartup};
 use bevy_ecs::prelude::*;
 use bevy_input::InputSystem;
 use bevy_utils::tracing::error;
@@ -30,8 +30,8 @@ impl Plugin for GilrsPlugin {
                 app.insert_non_send_resource(gilrs)
                     .init_non_send_resource::<RunningRumbleEffects>()
                     .add_systems(PreStartup, gilrs_event_startup_system)
-                    .add_systems(PreUpdate, gilrs_event_system.before(InputSystem))
-                    .add_systems(PostUpdate, play_gilrs_rumble.in_set(RumbleSystem));
+                    .add_systems(Control, gilrs_event_system.before(InputSystem))
+                    .add_systems(FrameReady, play_gilrs_rumble.in_set(RumbleSystem));
             }
             Err(err) => error!("Failed to start Gilrs. {}", err),
         }
diff --git a/crates/bevy_gizmos/src/lib.rs b/crates/bevy_gizmos/src/lib.rs
index 194341878ea0e..1cab57a530e99 100644
--- a/crates/bevy_gizmos/src/lib.rs
+++ b/crates/bevy_gizmos/src/lib.rs
@@ -18,7 +18,7 @@
 
 use std::mem;
 
-use bevy_app::{Last, Plugin, RenderFlow, Update};
+use bevy_app::{FrameReady, Plugin, RenderFlow};
 use bevy_asset::{load_internal_asset, AddAsset, Assets, Handle, HandleUntyped};
 use bevy_core::cast_slice;
 use bevy_ecs::{
@@ -84,12 +84,12 @@ impl Plugin for GizmoPlugin {
             .init_resource::<LineGizmoHandles>()
             .init_resource::<GizmoConfig>()
             .init_resource::<GizmoStorage>()
-            .add_systems(Last, update_gizmo_meshes)
             .add_systems(
-                Update,
+                FrameReady,
                 (
                     draw_aabbs,
                     draw_all_aabbs.run_if(|config: Res<GizmoConfig>| config.aabb.draw_all),
+                    update_gizmo_meshes,
                 ),
             );
 
diff --git a/crates/bevy_input/src/lib.rs b/crates/bevy_input/src/lib.rs
index 4f343ece0dbf2..f6f744e1ff06f 100644
--- a/crates/bevy_input/src/lib.rs
+++ b/crates/bevy_input/src/lib.rs
@@ -62,13 +62,13 @@ impl Plugin for InputPlugin {
             .add_event::<KeyboardInput>()
             .init_resource::<Input<KeyCode>>()
             .init_resource::<Input<ScanCode>>()
-            .add_systems(PreUpdate, keyboard_input_system.in_set(InputSystem))
+            .add_systems(Control, keyboard_input_system.in_set(InputSystem))
             // mouse
             .add_event::<MouseButtonInput>()
             .add_event::<MouseMotion>()
             .add_event::<MouseWheel>()
             .init_resource::<Input<MouseButton>>()
-            .add_systems(PreUpdate, mouse_button_input_system.in_set(InputSystem))
+            .add_systems(Control, mouse_button_input_system.in_set(InputSystem))
             .add_event::<TouchpadMagnify>()
             .add_event::<TouchpadRotate>()
             // gamepad
@@ -99,7 +99,7 @@ impl Plugin for InputPlugin {
             // touch
             .add_event::<TouchInput>()
             .init_resource::<Touches>()
-            .add_systems(PreUpdate, touch_screen_input_system.in_set(InputSystem));
+            .add_systems(Control, touch_screen_input_system.in_set(InputSystem));
 
         // Register common types
         app.register_type::<ButtonState>();
diff --git a/crates/bevy_render/src/mesh/morph.rs b/crates/bevy_render/src/mesh/morph.rs
index c6eba94b477e1..d385a7b95ac15 100644
--- a/crates/bevy_render/src/mesh/morph.rs
+++ b/crates/bevy_render/src/mesh/morph.rs
@@ -3,7 +3,7 @@ use crate::{
     render_resource::{Extent3d, TextureDimension, TextureFormat},
     texture::Image,
 };
-use bevy_app::{Plugin, PostUpdate};
+use bevy_app::{FrameReady, Plugin};
 use bevy_asset::Handle;
 use bevy_ecs::prelude::*;
 use bevy_hierarchy::Children;
@@ -28,7 +28,7 @@ impl Plugin for MorphPlugin {
     fn build(&self, app: &mut bevy_app::App) {
         app.register_type::<MorphWeights>()
             .register_type::<MeshMorphWeights>()
-            .add_systems(PostUpdate, inherit_weights);
+            .add_systems(FrameReady, inherit_weights);
     }
 }
 
diff --git a/crates/bevy_render/src/render_resource/texture.rs b/crates/bevy_render/src/render_resource/texture.rs
index df0df616a6f6c..aa95cf9ca1120 100644
--- a/crates/bevy_render/src/render_resource/texture.rs
+++ b/crates/bevy_render/src/render_resource/texture.rs
@@ -58,6 +58,7 @@ pub struct TextureView {
     value: ErasedTextureView,
 }
 
+#[derive(Debug)]
 pub struct SurfaceTexture {
     value: ErasedSurfaceTexture,
 }
diff --git a/crates/bevy_render/src/renderer/render_device.rs b/crates/bevy_render/src/renderer/render_device.rs
index eef8b100cb130..9d88a64d98410 100644
--- a/crates/bevy_render/src/renderer/render_device.rs
+++ b/crates/bevy_render/src/renderer/render_device.rs
@@ -12,7 +12,7 @@ use crate::render_resource::resource_macros::*;
 render_resource_wrapper!(ErasedRenderDevice, wgpu::Device);
 
 /// This GPU device is responsible for the creation of most rendering and compute resources.
-#[derive(Resource, Clone)]
+#[derive(Debug, Resource, Clone)]
 pub struct RenderDevice {
     device: ErasedRenderDevice,
 }
diff --git a/crates/bevy_render/src/view/visibility/mod.rs b/crates/bevy_render/src/view/visibility/mod.rs
index b8d0685e6f39f..35b94d34db776 100644
--- a/crates/bevy_render/src/view/visibility/mod.rs
+++ b/crates/bevy_render/src/view/visibility/mod.rs
@@ -2,7 +2,7 @@ mod render_layers;
 
 pub use render_layers::*;
 
-use bevy_app::{Plugin, PostUpdate};
+use bevy_app::{FrameReady, Plugin};
 use bevy_asset::{Assets, Handle};
 use bevy_ecs::prelude::*;
 use bevy_hierarchy::{Children, Parent};
@@ -213,10 +213,10 @@ impl Plugin for VisibilityPlugin {
 
         app
             // We add an AABB component in CalculateBounds, which must be ready on the same frame.
-            .add_systems(PostUpdate, apply_deferred.in_set(CalculateBoundsFlush))
-            .configure_set(PostUpdate, CalculateBoundsFlush.after(CalculateBounds))
+            .add_systems(FrameReady, apply_deferred.in_set(CalculateBoundsFlush))
+            .configure_set(FrameReady, CalculateBoundsFlush.after(CalculateBounds))
             .add_systems(
-                PostUpdate,
+                FrameReady,
                 (
                     calculate_bounds.in_set(CalculateBounds),
                     update_frusta::<OrthographicProjection>
diff --git a/crates/bevy_render/src/view/window/screenshot.rs b/crates/bevy_render/src/view/window/screenshot.rs
index 440634c274e1d..db5f706f9847b 100644
--- a/crates/bevy_render/src/view/window/screenshot.rs
+++ b/crates/bevy_render/src/view/window/screenshot.rs
@@ -254,6 +254,7 @@ impl SpecializedRenderPipeline for ScreenshotToScreenPipeline {
     }
 }
 
+#[derive(Debug)]
 pub struct ScreenshotPreparedState {
     pub texture: Texture,
     pub buffer: Buffer,
diff --git a/crates/bevy_time/src/lib.rs b/crates/bevy_time/src/lib.rs
index 704d54d860452..6db2890abece7 100644
--- a/crates/bevy_time/src/lib.rs
+++ b/crates/bevy_time/src/lib.rs
@@ -45,7 +45,7 @@ impl Plugin for TimePlugin {
             .register_type::<Time>()
             .register_type::<Stopwatch>()
             .init_resource::<FixedTime>()
-            .add_systems(First, time_system.in_set(TimeSystem))
+            .add_systems(Control, time_system.in_set(TimeSystem))
             .add_systems(RunFixedUpdateLoop, run_fixed_update_schedule);
 
         #[cfg(feature = "bevy_ci_testing")]
diff --git a/crates/bevy_ui/src/lib.rs b/crates/bevy_ui/src/lib.rs
index d5669288c3db4..fb905ae9439de 100644
--- a/crates/bevy_ui/src/lib.rs
+++ b/crates/bevy_ui/src/lib.rs
@@ -145,7 +145,7 @@ impl Plugin for UiPlugin {
         );
         #[cfg(feature = "bevy_text")]
         app.add_plugins(accessibility::AccessibilityPlugin);
-        app.add_systems(PostUpdate, {
+        app.add_systems(FrameReady, {
             let system = widget::update_image_content_size_system.before(UiSystem::Layout);
             // Potential conflicts: `Assets<Image>`
             // They run independently since `widget::image_node_system` will only ever observe
diff --git a/crates/bevy_window/src/lib.rs b/crates/bevy_window/src/lib.rs
index abd5c8cf59c22..0b589aed8ab76 100644
--- a/crates/bevy_window/src/lib.rs
+++ b/crates/bevy_window/src/lib.rs
@@ -95,17 +95,17 @@ impl Plugin for WindowPlugin {
 
         match self.exit_condition {
             ExitCondition::OnPrimaryClosed => {
-                app.add_systems(PostUpdate, exit_on_primary_closed);
+                app.add_systems(Control, exit_on_primary_closed);
             }
             ExitCondition::OnAllClosed => {
-                app.add_systems(PostUpdate, exit_on_all_closed);
+                app.add_systems(Control, exit_on_all_closed);
             }
             ExitCondition::DontExit => {}
         }
 
         if self.close_when_requested {
             // Need to run before `exit_on_*` systems
-            app.add_systems(PostUpdate, close_when_requested);
+            app.add_systems(Control, close_when_requested);
         }
 
         // Register event types
diff --git a/crates/bevy_winit/src/accessibility.rs b/crates/bevy_winit/src/accessibility.rs
index 49e7a0f11c65b..fb558d4957ca4 100644
--- a/crates/bevy_winit/src/accessibility.rs
+++ b/crates/bevy_winit/src/accessibility.rs
@@ -11,7 +11,7 @@ use bevy_a11y::{
     accesskit::{ActionHandler, ActionRequest, NodeBuilder, NodeClassSet, Role, TreeUpdate},
     AccessKitEntityExt, AccessibilityNode, AccessibilityRequested, Focus,
 };
-use bevy_app::{App, Plugin, PostUpdate};
+use bevy_app::{App, Control, FrameReady, Plugin};
 use bevy_derive::{Deref, DerefMut};
 use bevy_ecs::{
     prelude::{DetectChanges, Entity, EventReader, EventWriter},
@@ -170,13 +170,9 @@ impl Plugin for AccessibilityPlugin {
             .init_resource::<WinitActionHandlers>()
             .add_event::<ActionRequestWrapper>()
             .add_systems(
-                PostUpdate,
-                (
-                    handle_window_focus,
-                    window_closed,
-                    poll_receivers,
-                    update_accessibility_nodes,
-                ),
-            );
+                Control,
+                (handle_window_focus, window_closed, poll_receivers),
+            )
+            .add_systems(FrameReady, update_accessibility_nodes);
     }
 }
diff --git a/crates/bevy_winit/src/lib.rs b/crates/bevy_winit/src/lib.rs
index e6c82152e317b..a8cfe1a4e4e46 100644
--- a/crates/bevy_winit/src/lib.rs
+++ b/crates/bevy_winit/src/lib.rs
@@ -29,7 +29,7 @@ pub use winit_config::*;
 pub use winit_handler::*;
 pub use winit_windows::*;
 
-use bevy_app::{App, AppExit, Last, Plugin};
+use bevy_app::{App, AppExit, Control, Plugin};
 use bevy_ecs::event::ManualEventReader;
 use bevy_ecs::prelude::*;
 use bevy_input::{
@@ -108,7 +108,7 @@ impl Plugin for WinitPlugin {
             // exit_on_all_closed only uses the query to determine if the query is empty,
             // and so doesn't care about ordering relative to changed_window
             .add_systems(
-                Last,
+                Control,
                 (
                     changed_window.ambiguous_with(exit_on_all_closed),
                     // Update the state of the window before attempting to despawn to ensure consistent event ordering
diff --git a/crates/bevy_winit/src/web_resize.rs b/crates/bevy_winit/src/web_resize.rs
index a53075dea3883..eca695b5bbb30 100644
--- a/crates/bevy_winit/src/web_resize.rs
+++ b/crates/bevy_winit/src/web_resize.rs
@@ -1,5 +1,5 @@
 use crate::WinitWindows;
-use bevy_app::{App, Plugin, Update};
+use bevy_app::{App, Plugin};
 use bevy_ecs::prelude::*;
 use crossbeam_channel::{Receiver, Sender};
 use wasm_bindgen::JsCast;
@@ -10,7 +10,7 @@ pub(crate) struct CanvasParentResizePlugin;
 impl Plugin for CanvasParentResizePlugin {
     fn build(&self, app: &mut App) {
         app.init_resource::<CanvasParentResizeEventChannel>()
-            .add_systems(Update, canvas_parent_resize_event_handler);
+            .add_systems(Control, canvas_parent_resize_event_handler);
     }
 }
 
diff --git a/crates/bevy_winit/src/winit_handler.rs b/crates/bevy_winit/src/winit_handler.rs
index f792aa57fbf5d..0e22918f54ec8 100644
--- a/crates/bevy_winit/src/winit_handler.rs
+++ b/crates/bevy_winit/src/winit_handler.rs
@@ -84,7 +84,7 @@ impl WinitHandler {
     }
 
     /// Requests frame redraw.
-    /// 
+    ///
     /// If called during redrawing, the next redraw is reserved.
     pub fn redraw(&mut self) {
         if let Err(e) = self.proxy.get().send_event(HandleEvent::RequestRedraw) {