[okular] [Bug 421040] Mouse warp effect can't be disabled

[David Hurka]

https://bugs.kde.org/show_bug.cgi?id=421040

--- Comment #11 from David Hurka <david.hurka at mailbox.org> ---
Did you change this from NEEDSINFO to NEEDSINFO? While I don’t consider
vertical wraparound an Okular bug, but more a mouse bug or desk bug, which is
relevant for many other applications (especially KiCad, where it is indeed not
possible to avoid behavior in any way).

I would like to fix Bug 374904, i. e. the opposite.

If one doesn’t want to lift the physical desktop mouse, an option would be e.
g. a thumb button which holds the cursor while moving the mouse back onto the
desk. Change the circuit of the mouse’s LED or laser diode from:

---->|----
     LED

to:
       button (opens at press)
---+--o___o---->|----+----
   |            LED  |
   |                 |
   +----|<-----------+
        Zener Diode, 2.7V

or to:

---+----->|----------+----
   |      LED        |
   |                 |
   +--o   o------>|--+
      _____       Silicon diode
    Button (closes at press)   

This will make the mouse blind while pressing the button, so you can move it
around. If you mount the additional diode the wrong direction, nothing bad
should happen, just the button behaves as always open.

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