From 6ae9ad3dc5012b54c7931a8ae7cfd97415add687 Mon Sep 17 00:00:00 2001
From: lkn <lkn@localhost>
Date: Tue, 23 Jun 2026 20:47:04 +0200
Subject: [PATCH] handle xdg_toplevel unset_fullscreen request

Check toplevel->requested.fullscreen to determine whether the client
wants to enter or leave fullscreen, and call wUnfullscreenWindow
accordingly.
---
 src/backend/wayland/wl_xdg.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/backend/wayland/wl_xdg.c b/src/backend/wayland/wl_xdg.c
index c8afe51..d2a315c 100644
--- a/src/backend/wayland/wl_xdg.c
+++ b/src/backend/wayland/wl_xdg.c
@@ -154,8 +154,13 @@ handle_toplevel_request_fullscreen(struct wl_listener *listener, void *data)
     if (!desc || desc->parent_type != WCLASS_WINDOW)
         return;
     WWindow *wwin = (WWindow *)desc->parent;
-    if (!wwin->flags.fullscreen)
-        wFullscreenWindow(wwin);
+    if (view->xdg_surface->toplevel->requested.fullscreen) {
+        if (!wwin->flags.fullscreen)
+            wFullscreenWindow(wwin);
+    } else {
+        if (wwin->flags.fullscreen)
+            wUnfullscreenWindow(wwin);
+    }
 }
 
 /*