[kmail2] [Bug 440874] New: Folder list scrolls up when trying to drag message into folder

[Dennis Schridde]

https://bugs.kde.org/show_bug.cgi?id=440874

            Bug ID: 440874
           Summary: Folder list scrolls up when trying to drag message
                    into folder
           Product: kmail2
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: folders
          Assignee: kdepim-bugs at kde.org
          Reporter: devurandom at gmx.net
  Target Milestone: ---

SUMMARY

When trying to drag a message from the message list of one folder into another
folder (by moving it over a folder in the folder list), the folder list starts
to scroll up to the top, moving the folders under the mouse and scrolling the
intended folder out of view.

A workaround to be able to drag and drop messages into the target folder is to
collapse all folders in the list, so that it cannot scroll further up.  This
only works, if the target folder is visible when the list is fully scrolled up.

STEPS TO REPRODUCE

1. Expand some folders in the folder list
2. Open a folder so that its messages are shown in the message list
3. Drag a message from the message list over the folder list

OBSERVED RESULT

The folder list starts scrolling up once the mouse is moved over it.  It will
keep moving even when the mouse is still.

EXPECTED RESULT

The folder list does not move on its own.

SOFTWARE/OS VERSIONS

Operating System: Gentoo Linux
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 5.13.8 (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 5 2400G with Radeon Vega Graphics
Memory: 13,5 GiB of RAM
Graphics Processor: AMD Radeon™ Vega 11 Graphics

ADDITIONAL INFORMATION

KMail 5.17.3

Under some circumstances, very seldomly, this magic scrolling does not happen. 
I was however so far unable to reproduce that.

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