[okular] [Bug 353330] pressing Ctrl (while document is sliding because of scrolling) lets the document zoom instead of further sliding.

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=353330

Nate Graham <pointedstick at zoho.com> changed:

           What    |Removed                     |Added
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                 CC|                            |pointedstick at zoho.com

--- Comment #1 from Nate Graham <pointedstick at zoho.com> ---
This is caused by the X11 synaptics touchpad driver's inertial scrolling
feature. Apps need special code to prevent this from happening. For example:
https://cgit.kde.org/ktexteditor.git/commit/?id=f51befdc80b1a8dfd65b800b3b10dba97d10a2cb

With Libinput on Xorg or Wayland, the problem "disappears" because libinput
doesn't implement inertial scrolling, and expects UI toolkits like Qt and GTK
to implement inertial scrolling behavior themselves.

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