Is it currently possible to programatically disable the scroll bar when there is nothing to scroll?

[paveloom]

For example, when Neovim is open, the scrollbar is not particularly useful.

[wez]

You could do something like:

wezterm.on('update-status', function(window, pane)
  local overrides = window:get_config_overrides() or {}
  overrides.enable_scroll_bar = not pane:is_alt_screen_active()
  window:set_config_overrides(overrides)     
end)

See also:

• https://wezfurlong.org/wezterm/config/lua/pane/is_alt_screen_active.html
• https://wezfurlong.org/wezterm/config/lua/window-events/update-status.html
• https://wezfurlong.org/wezterm/config/lua/window/get_config_overrides.html
• https://wezfurlong.org/wezterm/config/lua/window/set_config_overrides.html

[paveloom]

Neat! Thank you.

[jaminthorns]

Additionally, if you'd like to disable the scrollbar when there aren't enough rows to actually scroll, you can do that with pane:get_dimensions():

wezterm.on("update-status", function(window, pane)
  local overrides = window:get_config_overrides() or {}
  local dimensions = pane:get_dimensions()

  overrides.enable_scroll_bar = dimensions.scrollback_rows > dimensions.viewport_rows and not pane:is_alt_screen_active()

  window:set_config_overrides(overrides)
end)