After some checks, it seems because data_device_start_drag() doesn't support MetaWaylandTouch.
The fix will impact the mutter architecture and it's more likely a feature request in mutter so far. It can be workaround by either sync MetaWaylandPointer motion and MetaWaylandTouch when meta_wayland_seat_update() or meta_wayland_seat_handle_event() with some tweaks. or some changes in meta_wayland_data_device_start_drag(). As maintainer mentions[1] the drag feature is refactoring part.1: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2068 part.2: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2099 part.3: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2100 and this issue might be fixed in part.5... For both workaround look not suitable with the maintainer's design. I prefer to wait until the refactoring completed by maintainer. [1] https://gitlab.gnome.org/GNOME/mutter/-/issues/2393#note_1532698 ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #2393 https://gitlab.gnome.org/GNOME/mutter/-/issues/2393 ** Changed in: oem-priority Assignee: jeremyszu (os369510) => (unassigned) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1966635 Title: can't move file/directory by drag and drop by using touch monitor Status in Mutter: Unknown Status in OEM Priority Project: Confirmed Status in mutter package in Ubuntu: New Status in nautilus package in Ubuntu: Incomplete Bug description: Can't move file/directory by drag and drop by using a touch monitor OS: 22.04, up to date @ Mar 28, 2022. nautilus: 1:42~rc-1-ubuntu1 mode: wayland To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1966635/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
