This is happening because of the way DBusMenu implements its menuitems.
GtkMenuItem is a GtkBin, and gtk's menuitem.c adds a single child, a
GtkAccelLabel (which is a private Gtk class). DBusMenu wants the single
child to be a container, so it reparents that GtkAccelLabel into an hbox
and sets the hbox as the single child. (see genericmenuitem.c's
set_label()).
Unfortunately, this breaks Gtk's gtkmenuitem.c's
gtk_menu_item_sync_action_properties() function, which only updates the
GtkAccelLabel's properties if the GtkAccelLabel is still the direct
child of the menuitem.
It looks like there's some precedent in gtkmenuitem.c to look harder for
the Accel Label if the menuitem'c child is a container. This is what's
done in gtk_menu_item_accel_width_foreach() as a part of determining the
menuitem's preferred width for gtk_menu_item_get_preferred_width().
Maybe a similar patch would be accepted upstream for
gtk_menu_item_sync_action_properties(). I haven't tested such a patch,
but I think it would resolve this bug.
** Changed in: indicator-session
Status: Incomplete => Triaged
** Changed in: indicator-session (Ubuntu)
Status: Incomplete => Triaged
** Changed in: dbusmenu
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1011733
Title:
The lock screen shortcut doesn't update when its value is changed in
dconf
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