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phetsims / decaf

PhET Java Simulations converted to HTML5 using CheerpJ
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Sliders may be hard to grab #80

Open KatieWoe opened 4 years ago

KatieWoe commented 4 years ago

For reactions and rates in https://github.com/phetsims/QA/issues/495, but also seen in https://github.com/phetsims/QA/issues/494, so it seems to be a more general issue. Hard to record or reproduce consistently. Have seen on iPad touch screens and on trackpads. When grabbing a slider (for reactions and rates this is generally the temperature control) sometimes it will move only a little and not seem to drag with your finger. For instance, when trying to drag the temperature bucket hotter, it may move down a bit and need to be released and re-grabbed to work properly. The sliders are small and sometimes difficult to pick up on their own, so this may contribute to/cause the issue.

KatieWoe commented 4 years ago

I think I've figured out what causes When grabbing a slider (for reactions and rates this is generally the temperature control) sometimes it will move only a little and not seem to drag with your finger. If, instead of grabbing the tag, you grab the bar, this occurs. It is easier to do with touch, which is why I saw it more there.

KatieWoe commented 4 years ago

Confirmed that https://github.com/phetsims/decaf/issues/80#issuecomment-617337564 happens with the original java.