Drag not canceled on faucets when liquid reaches bottom/top

[jonathanolson]

Reproduce:

1. Start draining the fluid while pouring in fluid.
2. Either have the drain rate faster (drain faucet will have issues once there is no fluid and it will refill), or have the drain rate slower (filling faucet will have issues once it is filled, and it will drain out).

[jonathanolson]

Same issue happens with no canceling of the dropper when the beaker fills up completely.

[jonathanolson]

Reset all button should also cancel interactions.

[jonathanolson]

http://www.colorado.edu/physics/phet/dev/html/concentration/1.0.0-rc.2/concentration_en.html

[patricialoeblein]

I don't know how to make more than one thing run at a time. Jon's steps seem to imply that you can fix the drain/faucet to run, and then you can operate another feature. Is there an operation I need to know about? I cannot reproduce this issue.

[pixelzoom]

@patricialoeblein: I realize it's nowhere in the ticket description. But this is a multi-touch issue, specific to tablets. You can (for example) open the faucet with one finger while shaking the shaker with another finger.

@jonathanolson: probably a good idea to include 'debug information' to prevent this type of confusion.

[patricialoeblein]

Thanks Chris, I am presently only testing on mouse systems, but I am scheduled to get a touch soon. I guess I better get some best practices for touch testing when that happens.

[pixelzoom]

The interaction with the Reset All button is a general issue, covered in https://github.com/phetsims/scenery/issues/109, so I'm going to ignore it here.

[pixelzoom]

Fix for faucets is in https://github.com/phetsims/scenery-phet/commit/e5f61f2a43809bebc592658e80163f77155b28e3

Fix for dropper button is in https://github.com/phetsims/beers-law-lab/commit/c276456268784b2e0522587897e78f787b9ce33e and https://github.com/phetsims/beers-law-lab/commit/da207e1e9f595d13bfa48c1cf30f82b7b5c43986

Closing.