Revert "Fix toplevel window resize pingpong (#3575)" and fix better (#…

…3599) Fixes: #3600 Fixes: #3592 Fixes: #3573
canonical · Sep 25, 2024 · 89807a6 · 89807a6
1 parent 3ed9b29
commit 89807a6
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Showing 2 changed files with 13 additions and 4 deletions.
diff --git a/src/server/frontend_wayland/wayland_surface_observer.cpp b/src/server/frontend_wayland/wayland_surface_observer.cpp
@@ -77,11 +77,21 @@ void mf::WaylandSurfaceObserver::content_resized_to(ms::Surface const*, geom::Si
     run_on_wayland_thread_unless_window_destroyed(
         [content_size](Impl* impl, WindowWlSurfaceRole* window)
         {
-            if (impl->requested_size.value_or(impl->window_size) != content_size)
+            if (impl->requested_size && impl->requested_size == content_size)
             {
-                impl->requested_size = content_size;
-                window->handle_resize(std::nullopt, content_size);
+                // We've already requested this size, no action required
+                return;
             }
+
+            if (content_size == impl->window_size)
+            {
+                // The window manager is accepting the client's window size, no action required
+                return;
+            }
+
+            // The window manager is changing the client's window size, tell the client
+            impl->requested_size = content_size;
+            window->handle_resize(std::nullopt, content_size);
         });
 }
 

diff --git a/src/server/frontend_wayland/wayland_surface_observer.h b/src/server/frontend_wayland/wayland_surface_observer.h
@@ -64,7 +64,6 @@ class WaylandSurfaceObserver : public scene::NullSurfaceObserver
     void latest_client_size(geometry::Size window_size)
     {
         impl->window_size = window_size;
-        impl->requested_size = {};
     }
 
     /// Should only be called from the Wayland thread