--- タブ間を移動したときにウインドウの選択状態を復元する
local function tab_leave()
  vim.t.tabwin_last_winnr = vim.api.nvim_get_current_win()
end

local function tab_enter()
  local last_winnr = vim.t.tabwin_last_winnr
  if last_winnr == nil then
    return
  end
  pcall(vim.api.nvim_set_current_win, last_winnr)
end

local group = vim.api.nvim_create_augroup("kyoh86-conf-tab-window", {})
vim.api.nvim_create_autocmd("TabLeave", { group = group, callback = tab_leave })
vim.api.nvim_create_autocmd("TabEnter", { group = group, callback = tab_enter })