Auto-slide for bar magnet not working as expected on Main

[terracoda]

Over in phetsims/faradays-electromagnetic-lab#25, @pixelzoom and @terracoda both tested the auto-slide interaction of the bar magnet. It was behaving as expected in the published version for @terracoda, but was not behaving as expected on main for @pixelzoom.

The auto-slide behavior and alternative input for the bar magnet likely needs retesting before any maintenance releases of this sim.

The expected behavior is outlined in phetsims/faradays-electromagnetic-lab#25 (comment)

[terracoda]

Leaving this issue unassigned, but mentioning @jessegreenberg and @zepumph in case this is a known issue, or if it relates to any general alt input work.

[pixelzoom]

Specifically phetsims/faradays-electromagnetic-lab#25 (comment):

... I have not figured out how to stop the auto-slide -- I tried space, return, tabbing away -- and this seems like a bug or oversight.

And @terracoda describes the correct behavior in phetsims/faradays-electromagnetic-lab#25 (comment).

Leaving this issue unassigned, but mentioning @jessegreenberg and @zepumph in case this is a known issue, or if it relates to any general alt input work.

If we'd like to use this in FEL, then it needs to be fixed before I can incorporate it there. So assigning to @arouinfar @jessegreenberg and @zepumph to decided how to proceed. High priority since FEL is nearly feature complete, and another form of alt input has already been implemented for the bar magnet.

[pixelzoom]

@jessegreenberg @zepumph I'd also be interested in where this behavior is implemented, how close it is to being generalized enough that it's usable elsewhere, and whether you think it can/should be moved to common code.

[jessegreenberg]

Yes, I reproduced the issue on main. I found it was from the conversion to KeyboardListener, it is fixed by the above commit.

The implementation is in MagnetAutoSlideKeyboardListener.js. It is specific to faradays-law right now but it could be generalized if the same behavior is needed for another sim.

[pixelzoom]

I verified that this is now working as expected in main -- that is, as @terracoda described in phetsims/faradays-electromagnetic-lab#25 (comment).

Closing.