It is necessary to verify that the window is non-zero.
requested to merge chromium.developer.99/gtk:chromium.developer.99-gtk-3-24-patch-00172 into gtk-3-24
It is necessary to verify that the window is non-zero here, otherwise the following logic will cause a crash.
Fixes https://gitlab.gnome.org/GNOME/gtk/-/issues/5091
Edited by robin zh