WIP raw-window-handle 0.6

8 files changed, 142 insertions, 102 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 1f2da434..421c7c76 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,6 +70,8 @@ thiserror.workspace = true
 image.workspace = true
 image.optional = true
 
+winit.workspace = true
+
 [profile.release-opt]
 inherits = "release"
 codegen-units = 1
@@ -126,7 +128,10 @@ bytemuck = { version = "1.0", features = ["derive"] }
 cosmic-text = "0.10"
 futures = "0.3"
 glam = "0.24"
-glyphon = "0.4"
+# glyphon = "0.4"
+# TODO update for wgpu 0.19
+# https://github.com/grovesNL/glyphon/pull/80
+glyphon = { git = "https://github.com/EggShark/glyphon" }
 guillotiere = "0.6"
 half = "2.2"
 image = "0.24"
@@ -140,12 +145,12 @@ once_cell = "1.0"
 ouroboros = "0.17"
 palette = "0.7"
 qrcode = { version = "0.12", default-features = false }
-raw-window-handle = "0.5"
+raw-window-handle = "0.6"
 resvg = "0.36"
 rustc-hash = "1.0"
 smol = "1.0"
 smol_str = "0.2"
-softbuffer = "0.3.4"
+softbuffer = "0.4.1"
 syntect = "5.1"
 sysinfo = "0.28"
 thiserror = "1.0"
@@ -158,7 +163,8 @@ wasm-bindgen-futures = "0.4"
 wasm-timer = "0.2"
 web-sys = "0.3"
 web-time = "0.2"
-wgpu = "0.18"
+wgpu = "0.19"
 winapi = "0.3"
-window_clipboard = "0.3"
-winit = { git = "https://github.com/iced-rs/winit.git", rev = "b91e39ece2c0d378c3b80da7f3ab50e17bb798a5", features = ["rwh_05"] }
+# window_clipboard = "0.3"
+window_clipboard = { git = "https://github.com/ids1024/window_clipboard", branch = "raw-window-handle-0.6" }
+winit = { git = "https://github.com/iced-rs/winit.git", rev = "b91e39ece2c0d378c3b80da7f3ab50e17bb798a5", features = ["rwh_06"] }
diff --git a/graphics/src/compositor.rs b/graphics/src/compositor.rs
index b8b575b4..6a4c7909 100644
--- a/graphics/src/compositor.rs
+++ b/graphics/src/compositor.rs
@@ -4,11 +4,11 @@ use crate::{Error, Viewport};
 
 use iced_core::Color;
 
-use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
+use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 use thiserror::Error;
 
 /// A graphics compositor that can draw to windows.
-pub trait Compositor: Sized {
+pub trait Compositor<W: HasWindowHandle + HasDisplayHandle>: Sized {
     /// The settings of the backend.
     type Settings: Default;
 
@@ -19,9 +19,9 @@ pub trait Compositor: Sized {
     type Surface;
 
     /// Creates a new [`Compositor`].
-    fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn new(
         settings: Self::Settings,
-        compatible_window: Option<&W>,
+        compatible_window: Option<W>,
     ) -> Result<Self, Error>;
 
     /// Creates a [`Self::Renderer`] for the [`Compositor`].
@@ -30,9 +30,9 @@ pub trait Compositor: Sized {
     /// Crates a new [`Surface`] for the given window.
     ///
     /// [`Surface`]: Self::Surface
-    fn create_surface<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn create_surface(
         &mut self,
-        window: &W,
+        window: W,
         width: u32,
         height: u32,
     ) -> Self::Surface;
diff --git a/renderer/src/compositor.rs b/renderer/src/compositor.rs
index f9afdea4..17157c66 100644
--- a/renderer/src/compositor.rs
+++ b/renderer/src/compositor.rs
@@ -3,29 +3,36 @@ use crate::graphics::compositor::{Information, SurfaceError};
 use crate::graphics::{Error, Viewport};
 use crate::{Renderer, Settings};
 
-use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
+use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 use std::env;
 
-pub enum Compositor<Theme> {
-    TinySkia(iced_tiny_skia::window::Compositor<Theme>),
+pub enum Compositor<W: HasWindowHandle + HasDisplayHandle, Theme> {
+    TinySkia(iced_tiny_skia::window::Compositor<W, Theme>),
     #[cfg(feature = "wgpu")]
-    Wgpu(iced_wgpu::window::Compositor<Theme>),
+    Wgpu(iced_wgpu::window::Compositor<W, Theme>),
 }
 
-pub enum Surface {
-    TinySkia(iced_tiny_skia::window::Surface),
+pub enum Surface<W: HasWindowHandle + HasDisplayHandle> {
+    TinySkia(iced_tiny_skia::window::Surface<W>),
     #[cfg(feature = "wgpu")]
-    Wgpu(iced_wgpu::window::Surface),
+    Wgpu(iced_wgpu::window::Surface<'static>),
 }
 
-impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
+// XXX Clone bound
+// XXX Send/Sync?
+// 'static?
+impl<
+        W: Clone + Send + Sync + HasWindowHandle + HasDisplayHandle + 'static,
+        Theme,
+    > crate::graphics::Compositor<W> for Compositor<W, Theme>
+{
     type Settings = Settings;
     type Renderer = Renderer<Theme>;
-    type Surface = Surface;
+    type Surface = Surface<W>;
 
-    fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn new(
         settings: Self::Settings,
-        compatible_window: Option<&W>,
+        compatible_window: Option<W>,
     ) -> Result<Self, Error> {
         let candidates =
             Candidate::list_from_env().unwrap_or(Candidate::default_list());
@@ -33,7 +40,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
         let mut error = Error::GraphicsAdapterNotFound;
 
         for candidate in candidates {
-            match candidate.build(settings, compatible_window) {
+            match candidate.build(settings, compatible_window.clone()) {
                 Ok(compositor) => return Ok(compositor),
                 Err(new_error) => {
                     error = new_error;
@@ -56,12 +63,12 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
         }
     }
 
-    fn create_surface<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn create_surface(
         &mut self,
-        window: &W,
+        window: W,
         width: u32,
         height: u32,
-    ) -> Surface {
+    ) -> Surface<W> {
         match self {
             Self::TinySkia(compositor) => Surface::TinySkia(
                 compositor.create_surface(window, width, height),
@@ -75,7 +82,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
 
     fn configure_surface(
         &mut self,
-        surface: &mut Surface,
+        surface: &mut Surface<W>,
         width: u32,
         height: u32,
     ) {
@@ -114,7 +121,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
             (
                 Self::TinySkia(_compositor),
                 crate::Renderer::TinySkia(renderer),
-                Surface::TinySkia(surface),
+                Surface::TinySkia(ref mut surface),
             ) => renderer.with_primitives(|backend, primitives| {
                 iced_tiny_skia::window::compositor::present(
                     backend,
@@ -129,7 +136,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
             (
                 Self::Wgpu(compositor),
                 crate::Renderer::Wgpu(renderer),
-                Surface::Wgpu(surface),
+                Surface::Wgpu(ref mut surface),
             ) => renderer.with_primitives(|backend, primitives| {
                 iced_wgpu::window::compositor::present(
                     compositor,
@@ -161,7 +168,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
             (
                 Self::TinySkia(_compositor),
                 Renderer::TinySkia(renderer),
-                Surface::TinySkia(surface),
+                Surface::TinySkia(ref mut surface),
             ) => renderer.with_primitives(|backend, primitives| {
                 iced_tiny_skia::window::compositor::screenshot(
                     surface,
@@ -226,11 +233,11 @@ impl Candidate {
         )
     }
 
-    fn build<Theme, W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn build<Theme, W: HasWindowHandle + HasDisplayHandle + Send + Sync>(
         self,
         settings: Settings,
-        _compatible_window: Option<&W>,
-    ) -> Result<Compositor<Theme>, Error> {
+        _compatible_window: Option<W>,
+    ) -> Result<Compositor<W, Theme>, Error> {
         match self {
             Self::TinySkia => {
                 let compositor = iced_tiny_skia::window::compositor::new(
diff --git a/src/application.rs b/src/application.rs
index 9518b8c5..d7be6719 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -1,6 +1,8 @@
 //! Build interactive cross-platform applications.
 use crate::{Command, Element, Executor, Settings, Subscription};
 
+use std::sync::Arc;
+
 pub use crate::style::application::{Appearance, StyleSheet};
 
 /// An interactive cross-platform application.
@@ -208,7 +210,10 @@ pub trait Application: Sized {
         Ok(crate::shell::application::run::<
             Instance<Self>,
             Self::Executor,
-            crate::renderer::Compositor<Self::Theme>,
+            crate::renderer::Compositor<
+                Arc<winit::window::Window>,
+                Self::Theme,
+            >,
         >(settings.into(), renderer_settings)?)
     }
 }
diff --git a/tiny_skia/src/window/compositor.rs b/tiny_skia/src/window/compositor.rs
index d99b85d4..788d7297 100644
--- a/tiny_skia/src/window/compositor.rs
+++ b/tiny_skia/src/window/compositor.rs
@@ -4,33 +4,36 @@ use crate::graphics::damage;
 use crate::graphics::{Error, Viewport};
 use crate::{Backend, Primitive, Renderer, Settings};
 
-use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
+use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 use std::collections::VecDeque;
 use std::marker::PhantomData;
 use std::num::NonZeroU32;
 
-pub struct Compositor<Theme> {
-    context: Option<softbuffer::Context>,
+pub struct Compositor<W: HasDisplayHandle + HasWindowHandle, Theme> {
+    context: Option<softbuffer::Context<W>>,
     settings: Settings,
     _theme: PhantomData<Theme>,
 }
 
-pub struct Surface {
-    window: softbuffer::Surface,
+pub struct Surface<W: HasDisplayHandle + HasWindowHandle> {
+    window: softbuffer::Surface<W, W>,
     clip_mask: tiny_skia::Mask,
     // Primitives of existing buffers, by decreasing age
     primitives: VecDeque<Vec<Primitive>>,
     background_color: Color,
 }
 
-impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
+// XXX avoid clone bound?
+impl<W: HasDisplayHandle + HasWindowHandle + Clone, Theme>
+    crate::graphics::Compositor<W> for Compositor<W, Theme>
+{
     type Settings = Settings;
     type Renderer = Renderer<Theme>;
-    type Surface = Surface;
+    type Surface = Surface<W>;
 
-    fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn new(
         settings: Self::Settings,
-        compatible_window: Option<&W>,
+        compatible_window: Option<W>,
     ) -> Result<Self, Error> {
         Ok(new(settings, compatible_window))
     }
@@ -43,20 +46,19 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
         )
     }
 
-    fn create_surface<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn create_surface(
         &mut self,
-        window: &W,
+        window: W,
         width: u32,
         height: u32,
-    ) -> Surface {
-        #[allow(unsafe_code)]
+    ) -> Surface<W> {
         let window = if let Some(context) = self.context.as_ref() {
-            unsafe { softbuffer::Surface::new(context, window) }
+            softbuffer::Surface::new(context, window)
                 .expect("Create softbuffer surface for window")
         } else {
-            let context = unsafe { softbuffer::Context::new(window) }
+            let context = softbuffer::Context::new(window.clone())
                 .expect("Create softbuffer context for window");
-            unsafe { softbuffer::Surface::new(&context, window) }
+            softbuffer::Surface::new(&context, window)
                 .expect("Create softbuffer surface for window")
         };
 
@@ -71,7 +73,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
 
     fn configure_surface(
         &mut self,
-        surface: &mut Surface,
+        surface: &mut Surface<W>,
         width: u32,
         height: u32,
     ) {
@@ -90,7 +92,7 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
     fn present<T: AsRef<str>>(
         &mut self,
         renderer: &mut Self::Renderer,
-        surface: &mut Self::Surface,
+        surface: &mut Surface<W>,
         viewport: &Viewport,
         background_color: Color,
         overlay: &[T],
@@ -128,13 +130,13 @@ impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
     }
 }
 
-pub fn new<W: HasRawWindowHandle + HasRawDisplayHandle, Theme>(
+pub fn new<W: HasWindowHandle + HasDisplayHandle, Theme>(
     settings: Settings,
-    compatible_window: Option<&W>,
-) -> Compositor<Theme> {
+    compatible_window: Option<W>,
+) -> Compositor<W, Theme> {
     #[allow(unsafe_code)]
-    let context = compatible_window
-        .and_then(|w| unsafe { softbuffer::Context::new(w) }.ok());
+    let context =
+        compatible_window.and_then(|w| softbuffer::Context::new(w).ok());
     Compositor {
         context,
         settings,
@@ -142,9 +144,9 @@ pub fn new<W: HasRawWindowHandle + HasRawDisplayHandle, Theme>(
     }
 }
 
-pub fn present<T: AsRef<str>>(
+pub fn present<W: HasDisplayHandle + HasWindowHandle, T: AsRef<str>>(
     backend: &mut Backend,
-    surface: &mut Surface,
+    surface: &mut Surface<W>,
     primitives: &[Primitive],
     viewport: &Viewport,
     background_color: Color,
@@ -216,8 +218,8 @@ pub fn present<T: AsRef<str>>(
     buffer.present().map_err(|_| compositor::SurfaceError::Lost)
 }
 
-pub fn screenshot<T: AsRef<str>>(
-    surface: &mut Surface,
+pub fn screenshot<W: HasDisplayHandle + HasWindowHandle, T: AsRef<str>>(
+    surface: &mut Surface<W>,
     backend: &mut Backend,
     primitives: &[Primitive],
     viewport: &Viewport,
diff --git a/wgpu/src/window/compositor.rs b/wgpu/src/window/compositor.rs
index 090e0e9f..e2dc4901 100644
--- a/wgpu/src/window/compositor.rs
+++ b/wgpu/src/window/compositor.rs
@@ -6,13 +6,13 @@ use crate::graphics::compositor;
 use crate::graphics::{Error, Viewport};
 use crate::{Backend, Primitive, Renderer, Settings};
 
-use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
+use raw_window_handle::{HasDisplayHandle, HasWindowHandle};
 
 use std::marker::PhantomData;
 
 /// A window graphics backend for iced powered by `wgpu`.
 #[allow(missing_debug_implementations)]
-pub struct Compositor<Theme> {
+pub struct Compositor<W, Theme> {
     settings: Settings,
     instance: wgpu::Instance,
     adapter: wgpu::Adapter,
@@ -20,15 +20,18 @@ pub struct Compositor<Theme> {
     queue: wgpu::Queue,
     format: wgpu::TextureFormat,
     theme: PhantomData<Theme>,
+    w: PhantomData<W>,
 }
 
-impl<Theme> Compositor<Theme> {
+impl<W: HasWindowHandle + HasDisplayHandle + wgpu::WasmNotSendSync, Theme>
+    Compositor<W, Theme>
+{
     /// Requests a new [`Compositor`] with the given [`Settings`].
     ///
     /// Returns `None` if no compatible graphics adapter could be found.
-    pub async fn request<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    pub async fn request(
         settings: Settings,
-        compatible_window: Option<&W>,
+        compatible_window: Option<W>,
     ) -> Option<Self> {
         let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
             backends: settings.internal_backend,
@@ -41,6 +44,7 @@ impl<Theme> Compositor<Theme> {
         if log::max_level() >= log::LevelFilter::Info {
             let available_adapters: Vec<_> = instance
                 .enumerate_adapters(settings.internal_backend)
+                .iter()
                 .map(|adapter| adapter.get_info())
                 .collect();
             log::info!("Available adapters: {available_adapters:#?}");
@@ -48,7 +52,7 @@ impl<Theme> Compositor<Theme> {
 
         #[allow(unsafe_code)]
         let compatible_surface = compatible_window
-            .and_then(|window| unsafe { instance.create_surface(window).ok() });
+            .and_then(|window| instance.create_surface(window).ok());
 
         let adapter = instance
             .request_adapter(&wgpu::RequestAdapterOptions {
@@ -100,14 +104,14 @@ impl<Theme> Compositor<Theme> {
 
         let (device, queue) =
             loop {
-                let limits = limits.next()?;
+                let required_limits = limits.next()?;
                 let device = adapter.request_device(
                     &wgpu::DeviceDescriptor {
                         label: Some(
                             "iced_wgpu::window::compositor device descriptor",
                         ),
-                        features: wgpu::Features::empty(),
-                        limits,
+                        required_features: wgpu::Features::empty(),
+                        required_limits,
                     },
                     None,
                 ).await.ok();
@@ -125,6 +129,7 @@ impl<Theme> Compositor<Theme> {
             queue,
             format,
             theme: PhantomData,
+            w: PhantomData,
         })
     }
 
@@ -136,10 +141,13 @@ impl<Theme> Compositor<Theme> {
 
 /// Creates a [`Compositor`] and its [`Backend`] for the given [`Settings`] and
 /// window.
-pub fn new<Theme, W: HasRawWindowHandle + HasRawDisplayHandle>(
+pub fn new<
+    Theme,
+    W: HasWindowHandle + HasDisplayHandle + wgpu::WasmNotSendSync,
+>(
     settings: Settings,
-    compatible_window: Option<&W>,
-) -> Result<Compositor<Theme>, Error> {
+    compatible_window: Option<W>,
+) -> Result<Compositor<W, Theme>, Error> {
     let compositor = futures::executor::block_on(Compositor::request(
         settings,
         compatible_window,
@@ -150,10 +158,10 @@ pub fn new<Theme, W: HasRawWindowHandle + HasRawDisplayHandle>(
 }
 
 /// Presents the given primitives with the given [`Compositor`] and [`Backend`].
-pub fn present<Theme, T: AsRef<str>>(
-    compositor: &mut Compositor<Theme>,
+pub fn present<W, Theme, T: AsRef<str>>(
+    compositor: &mut Compositor<W, Theme>,
     backend: &mut Backend,
-    surface: &mut wgpu::Surface,
+    surface: &mut wgpu::Surface<'static>,
     primitives: &[Primitive],
     viewport: &Viewport,
     background_color: Color,
@@ -204,14 +212,19 @@ pub fn present<Theme, T: AsRef<str>>(
     }
 }
 
-impl<Theme> graphics::Compositor for Compositor<Theme> {
+impl<
+        W: HasDisplayHandle + HasWindowHandle + wgpu::WasmNotSendSync + 'static,
+        Theme,
+    > graphics::Compositor<W> for Compositor<W, Theme>
+{
     type Settings = Settings;
     type Renderer = Renderer<Theme>;
-    type Surface = wgpu::Surface;
+    // XXX generic instead of 'static
+    type Surface = wgpu::Surface<'static>;
 
-    fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn new(
         settings: Self::Settings,
-        compatible_window: Option<&W>,
+        compatible_window: Option<W>,
     ) -> Result<Self, Error> {
         new(settings, compatible_window)
     }
@@ -224,14 +237,15 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
         )
     }
 
-    fn create_surface<W: HasRawWindowHandle + HasRawDisplayHandle>(
+    fn create_surface(
         &mut self,
-        window: &W,
+        window: W,
         width: u32,
         height: u32,
-    ) -> wgpu::Surface {
-        #[allow(unsafe_code)]
-        let mut surface = unsafe { self.instance.create_surface(window) }
+    ) -> wgpu::Surface<'static> {
+        let mut surface = self
+            .instance
+            .create_surface(window)
             .expect("Create surface");
 
         self.configure_surface(&mut surface, width, height);
@@ -241,7 +255,7 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
 
     fn configure_surface(
         &mut self,
-        surface: &mut Self::Surface,
+        surface: &mut wgpu::Surface<'static>,
         width: u32,
         height: u32,
     ) {
@@ -255,6 +269,7 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
                 height,
                 alpha_mode: wgpu::CompositeAlphaMode::Auto,
                 view_formats: vec![],
+                desired_maximum_frame_latency: 2,
             },
         );
     }
@@ -271,7 +286,7 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
     fn present<T: AsRef<str>>(
         &mut self,
         renderer: &mut Self::Renderer,
-        surface: &mut Self::Surface,
+        surface: &mut wgpu::Surface<'static>,
         viewport: &Viewport,
         background_color: Color,
         overlay: &[T],
@@ -292,7 +307,7 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
     fn screenshot<T: AsRef<str>>(
         &mut self,
         renderer: &mut Self::Renderer,
-        _surface: &mut Self::Surface,
+        _surface: &mut wgpu::Surface<'static>,
         viewport: &Viewport,
         background_color: Color,
         overlay: &[T],
@@ -313,8 +328,8 @@ impl<Theme> graphics::Compositor for Compositor<Theme> {
 /// Renders the current surface to an offscreen buffer.
 ///
 /// Returns RGBA bytes of the texture data.
-pub fn screenshot<Theme, T: AsRef<str>>(
-    compositor: &Compositor<Theme>,
+pub fn screenshot<W, Theme, T: AsRef<str>>(
+    compositor: &Compositor<W, Theme>,
     backend: &mut Backend,
     primitives: &[Primitive],
     viewport: &Viewport,
diff --git a/winit/src/application.rs b/winit/src/application.rs
index bf48538d..d639a36b 100644
--- a/winit/src/application.rs
+++ b/winit/src/application.rs
@@ -24,6 +24,7 @@ use crate::{Clipboard, Error, Proxy, Settings};
 use futures::channel::mpsc;
 
 use std::mem::ManuallyDrop;
+use std::sync::Arc;
 
 /// An interactive, native cross-platform application.
 ///
@@ -105,7 +106,7 @@ pub fn run<A, E, C>(
 where
     A: Application + 'static,
     E: Executor + 'static,
-    C: Compositor<Renderer = A::Renderer> + 'static,
+    C: Compositor<Arc<winit::window::Window>, Renderer = A::Renderer> + 'static,
     <A::Renderer as core::Renderer>::Theme: StyleSheet,
 {
     use futures::task;
@@ -149,9 +150,12 @@ where
 
     log::debug!("Window builder: {builder:#?}");
 
-    let window = builder
-        .build(&event_loop)
-        .map_err(Error::WindowCreationFailed)?;
+    // XXX Arc?
+    let window = Arc::new(
+        builder
+            .build(&event_loop)
+            .map_err(Error::WindowCreationFailed)?,
+    );
 
     #[cfg(target_arch = "wasm32")]
     {
@@ -183,7 +187,7 @@ where
         };
     }
 
-    let compositor = C::new(compositor_settings, Some(&window))?;
+    let compositor = C::new(compositor_settings, Some(window.clone()))?;
     let mut renderer = compositor.create_renderer();
 
     for font in settings.fonts {
@@ -248,13 +252,13 @@ async fn run_instance<A, E, C>(
     >,
     mut control_sender: mpsc::UnboundedSender<winit::event_loop::ControlFlow>,
     init_command: Command<A::Message>,
-    window: winit::window::Window,
+    window: Arc<winit::window::Window>,
     should_be_visible: bool,
     exit_on_close_request: bool,
 ) where
     A: Application + 'static,
     E: Executor + 'static,
-    C: Compositor<Renderer = A::Renderer> + 'static,
+    C: Compositor<Arc<winit::window::Window>, Renderer = A::Renderer> + 'static,
     <A::Renderer as core::Renderer>::Theme: StyleSheet,
 {
     use futures::stream::StreamExt;
@@ -268,7 +272,7 @@ async fn run_instance<A, E, C>(
     let mut clipboard = Clipboard::connect(&window);
     let mut cache = user_interface::Cache::default();
     let mut surface = compositor.create_surface(
-        &window,
+        window.clone(),
         physical_size.width,
         physical_size.height,
     );
@@ -608,7 +612,7 @@ pub fn update<A: Application, C, E: Executor>(
     messages: &mut Vec<A::Message>,
     window: &winit::window::Window,
 ) where
-    C: Compositor<Renderer = A::Renderer> + 'static,
+    C: Compositor<Arc<winit::window::Window>, Renderer = A::Renderer> + 'static,
     <A::Renderer as core::Renderer>::Theme: StyleSheet,
 {
     for message in messages.drain(..) {
@@ -659,7 +663,7 @@ pub fn run_command<A, C, E>(
 ) where
     A: Application,
     E: Executor,
-    C: Compositor<Renderer = A::Renderer> + 'static,
+    C: Compositor<Arc<winit::window::Window>, Renderer = A::Renderer> + 'static,
     <A::Renderer as core::Renderer>::Theme: StyleSheet,
 {
     use crate::runtime::command;
diff --git a/winit/src/clipboard.rs b/winit/src/clipboard.rs
index f7a32868..8f5c5e63 100644
--- a/winit/src/clipboard.rs
+++ b/winit/src/clipboard.rs
@@ -15,7 +15,8 @@ enum State {
 impl Clipboard {
     /// Creates a new [`Clipboard`] for the given window.
     pub fn connect(window: &winit::window::Window) -> Clipboard {
-        let state = window_clipboard::Clipboard::connect(window)
+        #[allow(unsafe_code)]
+        let state = unsafe { window_clipboard::Clipboard::connect(window) }
             .ok()
             .map(State::Connected)
             .unwrap_or(State::Unavailable);