xwayland: listen to `request_activate` event

When REAPER submenu is closed `XCB_CLIENT_MESSAGE` with type
`NET_ACTIVE_WINDOW` is sent to set focus to parent menu.

Closes: https://github.com/swaywm/sway/issues/6324

2 files changed, 18 insertions, 0 deletions

diff --git a/include/sway/tree/view.h b/include/sway/tree/view.h
index 789a67c0..9e34b0d1 100644
--- a/include/sway/tree/view.h
+++ b/include/sway/tree/view.h
@@ -169,6 +169,7 @@ struct sway_xwayland_unmanaged {
 
         int lx, ly;
 
+        struct wl_listener request_activate;
         struct wl_listener request_configure;
         struct wl_listener request_fullscreen;
         struct wl_listener commit;
diff --git a/sway/desktop/xwayland.c b/sway/desktop/xwayland.c
index 40288f97..2f11b5fc 100644
--- a/sway/desktop/xwayland.c
+++ b/sway/desktop/xwayland.c
@@ -121,6 +121,20 @@ static void unmanaged_handle_unmap(struct wl_listener *listener, void *data) {
         }
 }
 
+static void unmanaged_handle_request_activate(struct wl_listener *listener, void *data) {
+        struct wlr_xwayland_surface *xsurface = data;
+        if (!xsurface->mapped) {
+                return;
+        }
+        struct sway_seat *seat = input_manager_current_seat();
+        struct sway_container *focus = seat_get_focused_container(seat);
+        if (focus && focus->view && focus->view->pid != xsurface->pid) {
+                return;
+        }
+
+        seat_set_focus_surface(seat, xsurface->surface, false);
+}
+
 static void unmanaged_handle_destroy(struct wl_listener *listener, void *data) {
         struct sway_xwayland_unmanaged *surface =
                 wl_container_of(listener, surface, destroy);
@@ -129,6 +143,7 @@ static void unmanaged_handle_destroy(struct wl_listener *listener, void *data) {
         wl_list_remove(&surface->unmap.link);
         wl_list_remove(&surface->destroy.link);
         wl_list_remove(&surface->override_redirect.link);
+        wl_list_remove(&surface->request_activate.link);
         free(surface);
 }
 
@@ -176,6 +191,8 @@ static struct sway_xwayland_unmanaged *create_unmanaged(
         surface->destroy.notify = unmanaged_handle_destroy;
         wl_signal_add(&xsurface->events.set_override_redirect, &surface->override_redirect);
         surface->override_redirect.notify = unmanaged_handle_override_redirect;
+        wl_signal_add(&xsurface->events.request_activate, &surface->request_activate);
+        surface->request_activate.notify = unmanaged_handle_request_activate;
 
         return surface;
 }