Adds config for smart split navigation

home/modules/wezterm/config/helpers.lua

@@ -44,11 +44,36 @@ function M.get_padding(padding, remove_padding_bottom)
 	}
 end
 
-function M.move_pane(key, direction)
+function M.is_vim(pane)
+	-- this is set by the plugin, and unset on ExitPre in Neovim
+	return pane:get_user_vars().IS_NVIM == "true"
+end
+
+local direction_keys = {
+	h = "Left",
+	j = "Down",
+	k = "Up",
+	l = "Right",
+}
+
+function M.split_nav(resize_or_move, key)
 	return {
 		key = key,
-		mods = "LEADER",
-		action = wezterm.action.ActivatePaneDirection(direction),
+		mods = resize_or_move == "resize" and "META" or "CTRL",
+		action = wezterm.action_callback(function(win, pane)
+			if M.is_vim(pane) then
+				-- pass the keys through to vim/nvim
+				win:perform_action({
+					SendKey = { key = key, mods = resize_or_move == "resize" and "META" or "CTRL" },
+				}, pane)
+			else
+				if resize_or_move == "resize" then
+					win:perform_action({ AdjustPaneSize = { direction_keys[key], 3 } }, pane)
+				else
+					win:perform_action({ ActivatePaneDirection = direction_keys[key] }, pane)
+				end
+			end
+		end),
 	}
 end