Function Key Tabs

The script makes it possible to select a tab by pressing a function key. F1 chooses the first tab, F2 the second, etc.

#!/usr/bin/env python3

import asyncio
import iterm2

async def main(connection):
    app = await iterm2.async_get_app(connection)
    keycodes = [ iterm2.Keycode.F1,
                 iterm2.Keycode.F2,
                 iterm2.Keycode.F3,
                 iterm2.Keycode.F4,
                 iterm2.Keycode.F5,
                 iterm2.Keycode.F6,
                 iterm2.Keycode.F7,
                 iterm2.Keycode.F8,
                 iterm2.Keycode.F9,
                 iterm2.Keycode.F10,
                 iterm2.Keycode.F11,
                 iterm2.Keycode.F12 ]
    async def keystroke_handler(connection, keystroke):
        if keystroke.modifiers == [ iterm2.Modifier.FUNCTION ]:
            try:
              fkey = keycodes.index(keystroke.keycode)
              if fkey >= 0 and fkey < len(app.current_terminal_window.tabs):
                  await app.current_terminal_window.tabs[fkey].async_select()
            except:
              pass


    pattern = iterm2.KeystrokePattern()
    pattern.forbidden_modifiers.extend([iterm2.Modifier.CONTROL,
                                        iterm2.Modifier.OPTION,
                                        iterm2.Modifier.COMMAND,
                                        iterm2.Modifier.SHIFT,
                                        iterm2.Modifier.NUMPAD])
    pattern.required_modifiers.extend([iterm2.Modifier.FUNCTION])
    pattern.keycodes.extend(keycodes)

    async def monitor():
        async with iterm2.KeystrokeMonitor(connection) as mon:
            while True:
                keystroke = await mon.async_get()
                await keystroke_handler(connection, keystroke)
    # Run the monitor in the background
    asyncio.create_task(monitor())

    # Block regular handling of function keys
    filter = iterm2.KeystrokeFilter(connection, [pattern])
    async with filter as mon:
        await iterm2.async_wait_forever()

iterm2.run_forever(main)

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