fix(core): force redraw on WindowEvent::Occluded(false)

CHANGELOG.md

@@ -26,7 +26,10 @@ Please only add new entries below the [Unreleased](#unreleased---releasedate) he
 ## [@Unreleased] - @ReleaseDate
 
 ### Features
-- **core**: Add the ability to force redraw a frame. (#pr @zihadmahiuddin)
+- **core**: Add the ability to force redraw a frame. (#697 @zihadmahiuddin)
+
+### Fixed
+- **core**: Fix window staying empty after switching workspace (e.g. in i3wm) by doing a force redraw. (#697 @zihadmahiuddin)
 
 ## [0.4.0-alpha.26] - 2025-02-05
 

ribir/src/app.rs

@@ -100,6 +100,13 @@ impl App {
               loop_handle.exit();
             }
           }
+          WindowEvent::Occluded(false) => {
+            // this is triggered before the app re-enters view
+            // for example, in something like i3 window manager,
+            // when you switch back to the workspace that the app is in
+            // in such cases, we need to re-enter the view otherwise the window stays empty
+            wnd.draw_frame(true);
+          }
           WindowEvent::RedrawRequested => {
             AppCtx::frame_ticks().clone().next(Instant::now());