mouse scroll wheel acting as input on imagebutton

kazald

Does anyone have insight on preventing a mouse scroll wheel action while the cursor is over an image button acting as input (the same as a button click).

MockDetective_rebuild.osexp

this is a basic example with one form

nextBtn.png

image for the button just so it will run

eduard

Hi Kazald,

your experiment is empty, I can't check the behavior you are describing. Could you reupload with one of the forms you experience the problem with?

Eduard

kazald

MockDetective_rebuild.osexp

kazald

one additional note, i tried a form with multiple image buttons and a mouse response limited to 1;3, however scrolling over one image button and then clicking another will result as the scrolled button being read as clicked.

eduard

Hi Kazald,

Ah, I see. At the moment, there is no way to change this as a setting in Opensesame. If it is really important to you, you can go this file in your Opensesame installation

lib/python3.7/site-packages/libopensesame/widgets/_form.py

and change line 192 in following way:

ms = mouse(self.experiment, buttonlist=[1,2,3], timeout=0)

instead of

ms = mouse(self.experiment, buttonlist=[1,2,3], timeout=0)

After a restart of Opensesame, scrolling should not trigger mouse events any more.

Good luck,

Eduard

@sebastiaan, should this be a feature? If so, I could make a PR.

sebastiaan

Hi @kazald ,

Thanks for pointing this out. Indeed, it's a bit unexpected behavior which I never noticed until now. @eduard , yes could you submit a PR for this?

— Sebastiaan

eduard

Yes!

kazald

Thank you eduard and sebastian.

One note for anyone else, the original _form/py code reads as

ms = mouse(self.experiment, timeout=0)

Adding the buttonlist here fixed the issue.