[pen-action] TAG Feedback: Alignment with Mouse API

[atanassov]

Based on comments by @kenchris and @cynthia made to address w3ctag/design-reviews#553

Originally posted by @kenchris in w3ctag/design-reviews#553 (comment)
Mouse has press and release events, but here you are only having a pressandhold, so you can not use it for pressing and dragging pen to select regions or text. Wouldn't it be better to have those instead?
Thanks for bringing this to our attention. Including the comment above, here are the questions we have.

Originally posted by @cynthia in w3ctag/design-reviews#553 (comment)
Why is the down/up pattern different for this from other (existing) input events? Pressandhold has limitations as @kenchris notes above.
Why is .connect() needed? Is this to ensure exclusive access to the pen, or a power saving measure?
It feels like having a "disconnect" event will be useful, since devices (as far as we are aware) automatically disconnect and an application should be able to know if it needs to call connect() again.
What happens when a page which is connected to a pen gets blurred? (e.g. user switches to a different tab)

[BoCupp-Microsoft]

Thanks for opening this to grab my attention.

I've responded on the original TAG issue here. I'll close this issue so the conversation happens in the original one.