They're retroshifters I think. Front shifters are usually friction AFAIK since you can trim it for cross-chaining and there's only either 2 or 3 positions anyway. Not much point indexing it.
Rear could be indexed but that's not relevant to the decision between a triple/double
I don't think they are friction shifters since they have the black brake lever. And for a lot of us those steps between gears are fine..