SUMMARY One-finger-scrolling with the file list is not possible. The only way to scroll on a touchscreen is by using the scrollbar SOFTWARE/OS VERSIONS KDE Plasma Version: 5.15.3 KDE Frameworks Version: 5.56 Qt Version: 5.12.2 ADDITIONAL INFORMATION Wayland
There's a Dolphin patch that shows how to add rudimentary touch scrolling to a Qt scrollview: https://phabricator.kde.org/D12162
Isn't that something Qt should provide upstream? Starting in Windows 8 you can do a two-finger drag on scrollable areas and I expect Qt to support that, too, so that infrastructure should be leverageable for our usecase?
Well, a two-finger drag on a scrollable area is not what people expect these days. One-finger scroll is the norm, and it seems like that can't be easily bolted on to existing scrollviews easily without potentially conflicting with existing click-and-drag behaviors on scrollable views. I guess Qt could provide some kind of same fallback behavior, but I suspect that QtWidgets apps will always need custom client code to handle it.
Still an issue on neon unstable. Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.24.80 KDE Frameworks Version: 5.92.0 Qt Version: 5.15.3 Graphics Platform: Wayland
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/kio/-/merge_requests/1356
*** Bug 496023 has been marked as a duplicate of this bug. ***
Fixed by Marco Martin in https://invent.kde.org/frameworks/kio/-/commit/63a00c27f85592b6a2898c54dcda61d9a6f6c61f for Frameworks 6.13!