darcula_nvim/nvim/lua/darcula/autocmds.lua

-- The MIT License (MIT)
--
-- Copyright © 2026 Scott E. Graves <scott.e.graves@protonmail.com>
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy of this software
-- and associated documentation files (the “Software”), to deal in the Software without restriction,
-- including without limitation the rights to use, copy, modify, merge, publish, distribute,
-- sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
-- furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in all copies or
-- substantial portions of the Software.
--
-- THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
-- BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--
local utils = require("darcula.utils")

local group =
  utils.augroup_with_autocmd(
  "DarculaAutoCommands",
  "BufReadPost",
  "*",
  function()
    local pos = vim.fn.line('\'"')
    if
      pos >= 1 and pos <= vim.fn.line("$") and vim.bo.filetype ~= "commit" and
        vim.bo.filetype ~= "rebase"
     then
      vim.cmd('normal! g`"')
    end
  end
)

utils.autocmd(
  group,
  "FileChangedShellPost",
  "*",
  function()
    local filename = utils.get_current_filename()
    vim.notify("File changed on disk:\n" .. filename, vim.log.levels.WARN)
  end
)

utils.autocmd(
  group,
  {"FocusGained", "BufEnter", "CursorHold", "CursorHoldI"},
  "*",
  function()
    local m = vim.fn.mode(0)
    if m ~= "c" and m ~= "cv" and m ~= "t" and vim.o.buftype ~= "nofile" then
      vim.cmd("silent! checktime")
    end
  end
)

utils.autocmd(
  group,
  "TextYankPost",
  "*",
  function()
    vim.highlight.on_yank({timeout = 250})
  end
)

utils.autocmd(
  group,
  "FileType",
  "lua",
  function()
    vim.cmd("hi luaParenError guibg=NONE")
  end
)

utils.autocmd(
  group,
  "ColorScheme",
  "*",
  function()
    NV_DARCULA_COLOR_SCHEME =
      vim.api.nvim_exec2("colorscheme", {output = true}).output
  end
)

utils.autocmd(
  group,
  "VimEnter",
  "*",
  function()
    NV_Darcula_Set_Gui_Font(0)
    NV_Darcula_Set_Gui_Popup(false)
  end
)

utils.autocmd(group, "DirChanged", "*", NV_Darcula_Load_RC)
utils.autocmd(group, "VimEnter", "*", NV_Darcula_Load_RC)

utils.autocmd(
  group,
  "FileType",
  "help",
  function()
    vim.opt_local.signcolumn = "no"
  end
)

utils.autocmd(
  group,
  "User",
  {"FugitiveChanged", "GitSignsUpdate"},
  function()
    local api = require("nvim-tree.api")
    if api.tree.is_visible() then
      pcall(api.tree.reload)
    end
  end
)

utils.autocmd(
  group,
  "FileType",
  "*",
  function(args)
    pcall(vim.treesitter.start, args.buf)
  end
)

if not NV_DARCULA_ENABLE_COC then
  utils.autocmd(
    group,
    "User",
    {
      "MiniCompletionWindowOpen",
      "MiniCompletionWindowUpdate"
    },
    function(args)
      local data = args.data
      if not data or not data.win_id then
        return
      end

      if data.kind ~= "info" and data.kind ~= "signature" then
        return
      end

      if vim.api.nvim_win_is_valid(data.win_id) then
        vim.api.nvim_win_set_config(
          data.win_id,
          {
            title = ""
          }
        )
      end
    end
  )
end

utils.autocmd(
  group,
  "BufEnter",
  "*",
  function()
    if vim.bo.filetype == "fugitive" or vim.bo.filetype == "gitcommit" then
      vim.cmd("resize 15")
    end
  end
)

utils.autocmd(
  group,
  "BufWritePost",
  "*",
  function()
    if NV_DARCULA_ENABLE_FORMATTING then
      vim.cmd("FormatWriteLock")
    end
  end
)

if not NV_DARCULA_ENABLE_COC then
  utils.autocmd(
    group,
    {"CursorHold"},
    "*",
    function()
      vim.diagnostic.open_float(nil, {focus = false})
    end
  )
end

if NV_DARCULA_ENABLE_COC then
  local show_signature_help = function()
    if vim.bo.buftype ~= "prompt" and vim.bo.buftype ~= "nofile" then
      vim.fn.CocActionAsync("showSignatureHelp")
    end
  end

  utils.autocmd(group, "User", "CocJumpPlaceholder", show_signature_help)

  utils.autocmd(
    group,
    {"InsertEnter", "TextChangedI"},
    "*",
    show_signature_help
  )

  utils.autocmd(
    group,
    "CursorHold",
    "*",
    function()
      if vim.bo.buftype ~= "prompt" and vim.bo.buftype ~= "nofile" then
        vim.fn.CocActionAsync("highlight")
      end
    end
  )

  utils.autocmd(
    group,
    "User",
    "CocNvimInit",
    function()
      vim.notify("Initialized coc.nvim for LSP support", vim.log.levels.INFO)
    end
  )
end