[Libreoffice-bugs] [Bug 46429] scrolling switches to zooming

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=46429

Ewen M <documentfoundation at ewen.mcneill.gen.nz> changed:

           What    |Removed                     |Added
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                 CC|                            |documentfoundation at ewen.mcn
                   |                            |eill.gen.nz

--- Comment #19 from Ewen M <documentfoundation at ewen.mcneill.gen.nz> ---
This bug affects me on MacOS 10.14.6 (and earlier versions) with many
LibreOffice versions over many years, pretty much every time I run LibreOffice.
 Usually multiple times a day; it's the most annoying misfeature in LibreOffice
IMHO.

As the original reporter states, it's a race condition between the (slow)
LibreOffice handling of scroll events and the (fast) LibreOffice handling of
keyboard events, which results in LibreOffice interpreting scroll events that
were triggered by a user action 1/4 to 1/2 a second before the Cmd key press as
related to the cmd key, and thus a request to zoom.

Since a *very* common action in office documents is to scroll around them with
the mouse, and then, eg, use Cmd-C/Cmd-V to copy/paste between parts of the
document, the race is extremely easy to trigger, hence many users running into
it many times a day.

There is no good reason why an extremely rare operation (zooming) should be
bound to an extremely frequently accidentally triggered keyboard/mouse
combination (cmd scroll).  

At minimum there should be a configuration option to disable "cmd scroll
zooming", and ideally the entire misfeature of cmd-scroll zomming should be
removed entirely.  (When required zooming can easily be done from the zoom
menu, and it's something users might want to do once or twice a day, not every
few minutes.)

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