1377084 - Update gtk grab to 3.20 - replace gdk_pointer_grab() by gdk_seat_grab()

Status: RESOLVED WONTFIX

(Core :: Widget: Gtk, defect, P3)

Description

[Martin Stránský [:stransky] (ni? me)]

We should replace gdk_pointer_grab() by gdk_seat_grab() which was introduced in Gtk 3.20.

The problem here is that gdk_seat_grab() actually works and the pointer *is* grabbed which causes regression in menu behavior.

For instance when second (child) sub-menu is opened (Menu bar -> View -> Toolbars), the Toolbars sub-menu is opened, grabs input by gdk_seat_grab() and all mouse input is directed only to the Toolbars submenu. OTOH the recent behavior does not restrict pointer input to the Toolbars submenu only.

Comment 1

[Martin Stránský [:stransky] (ni? me)]

Attachment: pointer grab demonstration

This video demonstrates the pointer grab performed on sub-menu.

Comment 2

[Martin Stránský [:stransky] (ni? me)]

I wonder if we actually want to perform that pointer drag (I don't think so) and why is behavior of gdk_pointer_grab() and gdk_seat_grab() different here.

Comment 3

[Martin Stránský [:stransky] (ni? me)]

Attachment: patch

This patch replaces gdk_pointer_grab() and gdk_seat_grab() but also causes the regression.

Comment 4

[Martin Stránský [:stransky] (ni? me)]

Downstream/Wayland related bug: https://bugzilla.redhat.com/show_bug.cgi?id=1464497