Tab shifter

This is a tab navigating plugin that behaves similarly to those in code editors.

As of V2 it has two functionalities

1. tab shifting (v1 behavior unchanged)
   • It has the same behavior as, e.g., the tab-shifter plugin for WebStorm.
   • Tabs can be either moved to the previous or to the next "tab group".
2. tab navigation: (v2 behavior, new)
   • Enables, e.g., cmd+alt+arrow to be used to navigate pref/next among open tabs
   • Turns out it's different from existing Next Tab command in that it will go across tab group boundaries

Caveats

Unofficial API

This plugin does not use an official API. Instead, it reads properties from the leaf (tab) and tabs (tab "groups") objects that seem always to be present. It does work currently, but it will break if those properties go away.

You can see what properties we assume are present in typesUnofficial.ts.

Logic

To decide which tab group to move a tab to: We trust that the order of existing leaves (tabs) matches the order of the tab groups. In my experience this is usually true, but it might behave weirdly if you have a ton of splits. (The other way to do this would have been to recalculate the view tree, but that's more complex and has thus far seemed unnecessary!)

Support

• I set this to DesktopOnly because I do not know whether the logic will work on mobile. If you'd like it to be available on mobile, please test that it works and then file a feature req.

• Currently this processes tab groups only if they contain open markdown files. We could support other types.