[css-transitions-2] Naming transition mode property and values

[SebastianZ]

In #8857 it was decided to add a new property that controls the transitioning mode for discrete values.

There wasn't a decision yet on how to name this property and what values it can take. So this issue is meant to discuss those options.

@flackr's suggestions there were:

• transition-mode
• transition-type
• transition-animation-type
• transition-property-mode (initial suggestion)

for the name and two values, one for default behavior (anything animatable but not discrete) and one for including discrete transitions.

Suggestions for default behavior keywords:

• normal
• interpolable

Suggestions for keywords that include discrete transitions:

• discrete
• animatable

Sebastian

[SebastianZ]

My vote goes for transition-type: [ normal | animatable ]# for the reason mentioned by @flackr and because the names are short and easy to spell.

I'm leaning a little bit more to -type than -mode for the property name because it is more common, though I don't have a strong preference between those two. The other two suggested names are unnecessarily long.

Regarding the values, interpolable might be a little bit hard to spell as it could be mixed with interpolatable. On the other hand, it might not be immediately clear to everyone that normal means that discrete transitions are excluded. I still lean towards that as it's used in other places, it's easy to spell and it's meaning (as initial value) needs to be learned anyway.
For including discrete transitions, I think animatable is the way to go, as discrete may confuse people whether it makes transitions of interpolable values also discrete.

I didn't consider any other names yet, so maybe there are even better ones.

Sebastian

[dbaron]

I think this was resolved in #8857 (comment) rather than using this separate issue.