https://bugs.kde.org/show_bug.cgi?id=402765

            Bug ID: 402765
           Summary: Zoom effect ignores mouse tracking option (Wayland)
           Product: kwin
           Version: 5.14.4
          Platform: Debian unstable
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: effects-various
          Assignee: kwin-bugs-n...@kde.org
          Reporter: alexander-kde@ninetailed.ninja
  Target Milestone: ---

SUMMARY
When changing the settings of the “Zoom” effect there is an option called
“mouse tracking” whose default value defaults to “Proportional”. This works as
expected, however when changing this to “Disabled” I'd expect a zoomed-in
desktop to stick whatever location it had when zooming in and NOT move when the
mouse cursor is moved (correct me if I'm misinterpreting something here!). At
least for me on Wayland this is not the case however.


STEPS TO REPRODUCE
1. Open the settings of the “Zoom” effect plugin (under system-settings →
workspace-behaviour)
2. Change “mouse tracking” to “disabled”
3. Click “OK” to save and close the dialog
4. Zoom in using the keybinding (Super+`=` by default)

OBSERVED RESULT
When moving the mouse cursor the part of the desktop currently visible will
move along with the mouse cursor – sometimes it will zoom into the upper-left
edge of the screen instead, jumping to the current mouse position only after
nudging the mouse.


EXPECTED RESULT
The desktop should zoom into the desktop at the current mouse position but
should not respond to changes in the cursor position afterwards.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian unstable with KDE Neon user repo
(there is no About System anywhere)
KDE Plasma Version: 5.14.4
KDE Frameworks Version: 5.53.0
Qt Version: 5.11.2
GPU: AMD Radeon R9 M270 (amdgpu driver)

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