seatop_default: handle focus for xwayland_unmanaged views

sway/input/seatop_default.c

@@ -7,6 +7,9 @@
 #include "sway/input/seat.h"
 #include "sway/tree/view.h"
 #include "log.h"
+#if HAVE_XWAYLAND
+#include "sway/xwayland.h"
+#endif
 
 struct seatop_default_event {
 	struct sway_node *previous_node;
@@ -292,6 +295,21 @@ static void handle_button(struct sway_seat *seat, uint32_t time_msec,
 		return;
 	}
 
+#if HAVE_XWAYLAND
+	// Handle clicking on xwayland unmanaged view
+	if (surface && wlr_surface_is_xwayland_surface(surface)) {
+		struct wlr_xwayland_surface *xsurface =
+			wlr_xwayland_surface_from_wlr_surface(surface);
+		if (wlr_xwayland_or_surface_wants_focus(xsurface)) {
+			struct wlr_xwayland *xwayland = server.xwayland.wlr_xwayland;
+			wlr_xwayland_set_seat(xwayland, seat->wlr_seat);
+			seat_set_focus_surface(seat, xsurface->surface, false);
+		}
+		seat_pointer_notify_button(seat, time_msec, button, state);
+		return;
+	}
+#endif
+
 	// Handle tiling resize via border
 	if (cont && resize_edge && button == BTN_LEFT &&
 			state == WLR_BUTTON_PRESSED && !is_floating) {