Add small wrapper for RawWindowHandle

examples/open_window.rs

@@ -25,7 +25,7 @@ impl baseview::AppWindow for MyProgram {
 
     fn create_context(
         &mut self,
-        _window: raw_window_handle::RawWindowHandle,
+        _window: baseview::RawWindow,
         _window_info: &baseview::WindowInfo,
     ) {
     }

src/lib.rs

@@ -36,12 +36,20 @@ pub struct WindowOpenOptions<'a> {
 pub trait AppWindow {
     type AppMessage;
 
-    fn create_context(
+    fn create_context(&mut self, window: RawWindow, window_info: &WindowInfo);
-        &mut self,
-        window: raw_window_handle::RawWindowHandle,
-        window_info: &WindowInfo,
-    );
     fn draw(&mut self);
     fn on_event(&mut self, event: Event);
     fn on_app_message(&mut self, message: Self::AppMessage);
 }
+
+/// A wrapper for a `RawWindowHandle`. Some context creators expect an `&impl HasRawWindowHandle`.
+#[derive(Debug, Copy, Clone)]
+pub struct RawWindow {
+    pub raw_window_handle: raw_window_handle::RawWindowHandle,
+}
+
+unsafe impl raw_window_handle::HasRawWindowHandle for RawWindow {
+    fn raw_window_handle(&self) -> raw_window_handle::RawWindowHandle {
+        self.raw_window_handle
+    }
+}

src/x11/window.rs

@@ -6,7 +6,9 @@ use ::x11::xlib;
 // use xcb::dri2; // needed later
 
 use super::XcbConnection;
-use crate::{AppWindow, Event, MouseButtonID, MouseScroll, Parent, WindowInfo, WindowOpenOptions};
+use crate::{
+    AppWindow, Event, MouseButtonID, MouseScroll, Parent, RawWindow, WindowInfo, WindowOpenOptions,
+};
 
 use raw_window_handle::RawWindowHandle;
 
@@ -130,6 +132,9 @@ impl<A: AppWindow> Window<A> {
             connection: xcb_connection.conn.get_raw_conn() as *mut c_void,
             ..raw_window_handle::unix::XcbHandle::empty()
         });
+        let raw_window = RawWindow {
+            raw_window_handle: raw_handle,
+        };
 
         let scaling = {
             let maybe_scaling =
@@ -158,7 +163,7 @@ impl<A: AppWindow> Window<A> {
 
         x11_window
             .app_window
-            .create_context(raw_handle, &window_info);
+            .create_context(raw_window, &window_info);
 
         x11_window.run_event_loop();