<html> <head> <base href="https://bugzilla.gnome.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [Wayland] Submenus often get closed after ~2 seconds" href="https://bugzilla.gnome.org/show_bug.cgi?id=768016#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [Wayland] Submenus often get closed after ~2 seconds" href="https://bugzilla.gnome.org/show_bug.cgi?id=768016">bug 768016</a> from <a href="page.cgi?id=describeuser.html&login=ofourdan%40redhat.com" title="Olivier Fourdan <ofourdan@redhat.com>"> Olivier Fourdan</a> <pre>I reckon it's a difference in the coordinates between X11 and Wayland. If we look at gtk_menu_set_submenu_navigation_region(): <a href="https://git.gnome.org/browse/gtk+/tree/gtk/gtkmenu.c#n4185">https://git.gnome.org/browse/gtk+/tree/gtk/gtkmenu.c#n4185</a> which is called in both X11 and Wayland cases as soon as the pointer leaves the first menu to enter the submenu, we see that the gtk_menu_stop_navigating_submenu_cb() timeout is set when event->x >= 0 && event->x < width, width being the width of the window where the event is coming from. In the X11 case, we have the event->x slightly (couple of pixels) farther than the actual left window width (e.g. x = 450, width = 448) which sounds right because the pointer has left the previous item therefore it's outside the window. But in the Wayland case, we have the event x slightly less that the actual left window width (e.g. x = 396, width = 408), and therfore we enter the case where the timeout will be set up. The Wayland case seems wrong, the event x should not be less than the width of the window that was the pointer just left (otherwise it would not have left the window, would we?).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> </ul> </body> </html>