Xfce Forum

kjwill

Member

Registered: 2020-08-12

Posts: 3

Disable mouse scroll wheel changing values for sliders and comboboxes

If I hold my mouse cursor over a slider or combobox (i.e. drop-down menu/select menu) and move my mouse scroll wheel, the value of the slider/combobox is changed. I really dislike this behavior. I've accidentally changed values countless times while scrolling in a window, and I'm sure one day I won't notice that I accidentally made a change.

Is there a way to disable this behavior? I can't find anything in the settings manager. If xfwm doesn't support changing this behavior, is there something I can do via GTK?

jesus2099

Member

Registered: 2020-05-04

Posts: 20

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

I changed values because of this too, without knowing what was the previous value.
Many panels don't have a validate button, so values are saved right away.

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,042

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

I don't believe there is an override setting in GTK for this behaviour. It would need to be programmed into the application itself.

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kjwill

Member

Registered: 2020-08-12

Posts: 3

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

I don't believe there is an override setting in GTK for this behaviour. It would need to be programmed into the application itself.

Are you saying that the scroll-to-change-value behavior is programmed into the application? I don't think that's the case because it seems to be prevalent across all GTK programs. I don't just see it in XFCE programs, but also Transmission, GVIM, Galculator, etc.

As jesus2099 said, this behavior is pretty dangerous when combined with the fact that a lot of panels, especially the XFCE Settings Manager, do not have a way to see or revert back to the original value.

ToZ

Administrator

From: Canada

Registered: 2011-06-02

Posts: 11,042

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

Are you saying that the scroll-to-change-value behavior is programmed into the application? I don't think that's the case because it seems to be prevalent across all GTK programs. I don't just see it in XFCE programs, but also Transmission, GVIM, Galculator, etc.

I believe its the default in GTK but can be turned off programmatically.

As jesus2099 said, this behavior is pretty dangerous when combined with the fact that a lot of panels, especially the XFCE Settings Manager, do not have a way to see or revert back to the original value.

I agree.

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kjwill

Member

Registered: 2020-08-12

Posts: 3

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

If anyone is interested, GTK is tracking this issue: https://gitlab.gnome.org/GNOME/gtk/-/issues/593

It's tagged to be fixed in GTK4, but the ticket doesn't seem to have a whole lot of buzz, which is disappointing considering how dangerous this behavior is. Looks like I may have found my first open source contribution...

alcornoqui

Member

Registered: 2014-07-28

Posts: 832

Re: Disable mouse scroll wheel changing values for sliders and comboboxes

That would be great, I agree it could be improved, go kjwill!