Oni: Tabs: Implement scrollbar when there is overflow

[bryphe]

The case when there is an 'overflow' (too many tabs) isn't handled today.

There should be the following:

• A minimal scrollbar to allow easy navigating via the mouse, if desired
• Focusing the proper tab - so even if you navigate via keyboard, that would get scrolled into view.

[hoschi]

Instead of a scrollbar, is it possible to make the tabs container wrapping in to more lines than one? Like flexbox + flex-wrap. I know that behavior of IntelliJ and really liked it. With a scrollbar you not see all your opened tabs. Probably it is a problem that the editor space gets smaller so a render cycle in NVim must be triggered?

[hoschi]

from http://hadihariri.com/2014/06/24/no-tabs-in-intellij-idea/

[bryphe]

@hoschi - interesting idea! I didn't think about this. Yes, it would definitely be doable, we'd just have it overflow to the next row.

Perhaps we could make it an option - I think I would prefer the look of a single-line of tabs, but I could see where some would prefer this. Thanks for the suggestion!

[hoschi]

@extr0py great :+1:
Yeah, I think some people want to stick to the default vim behavior. An option would be good.

[Shou]

You can also make the tabs shrink Chrome-style with Flexbox as a first measure before scrolling kicks in. I'd be glad to submit a PR if you're happy with the idea.

[bryphe]

That sounds great @Shou, a PR would be awesome if you're up for it!

[hoschi]

Can we make this configurable? My point of wrapping tabs was to show always the full name.

@Shou when you use flexbox for shrinking can you add wrapping with flex-wrap in one go?

[bryphe]

Looks like the work this issue was tracking is complete - having both scrollbar + wrapping behavior. I'll cose this, but we can use a new issue to track the tab-shrinking option, if desired.