Conditionally enable TAB to trigger completion based on filetype. Disable completion for simple text files (#1130)

* disable tab completion for markdown

* md is markdown

* Set local keybindings conditionally based on filetype.  Disable tab complete for text files

* Rename functions and expose excluded filetypes setting for compe

Co-authored-by: abzcoding <abzcoding@gmail.com>

lua/core/autocmds.lua

@@ -55,6 +55,9 @@ lvim.autocommands = {
     { "FileType", "markdown", "setlocal wrap" },
     { "FileType", "markdown", "setlocal spell" },
   },
+  _tab_bindings = {
+    { "FileType", "*", "lua require'core.compe'.set_tab_keybindings()" },
+  },
   _buffer_bindings = {
     { "FileType", "floaterm", "nnoremap <silent> <buffer> q :q<CR>" },
   },

lua/core/compe.lua

@@ -30,6 +30,8 @@ M.config = function()
       emoji = { kind = " ﲃ  (Emoji)", filetypes = { "markdown", "text" } },
       -- for emoji press : (idk if that in compe tho)
     },
+    -- FileTypes in this list won't trigger auto-complete when TAB is pressed.  Hitting TAB will insert a tab character
+    exclude_filetypes = { "md", "markdown", "mdown", "mkd", "mkdn", "mdwn", "text", "txt" },
   }
 end
 
@@ -81,11 +83,6 @@ M.setup = function()
     end
   end
 
-  vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete()", { expr = true })
-  vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete()", { expr = true })
-  vim.api.nvim_set_keymap("i", "<S-Tab>", "v:lua.s_tab_complete()", { expr = true })
-  vim.api.nvim_set_keymap("s", "<S-Tab>", "v:lua.s_tab_complete()", { expr = true })
-
   vim.api.nvim_set_keymap("i", "<C-Space>", "compe#complete()", { noremap = true, silent = true, expr = true })
   -- vim.api.nvim_set_keymap("i", "<CR>", "compe#confirm('<CR>')", { noremap = true, silent = true, expr = true })
   vim.api.nvim_set_keymap("i", "<C-e>", "compe#close('<C-e>')", { noremap = true, silent = true, expr = true })
@@ -93,4 +90,22 @@ M.setup = function()
   vim.api.nvim_set_keymap("i", "<C-d>", "compe#scroll({ 'delta': -4 })", { noremap = true, silent = true, expr = true })
 end
 
+local is_excluded = function(file_type)
+  for _, type in ipairs(lvim.builtin.compe.exclude_filetypes) do
+    if type == file_type then
+      return true
+    end
+  end
+  return false
+end
+
+M.set_tab_keybindings = function()
+  local file_type = vim.fn.expand "%:e"
+  if is_excluded(file_type) == false then
+    vim.api.nvim_buf_set_keymap(0, "i", "<Tab>", "v:lua.tab_complete()", { expr = true })
+    vim.api.nvim_buf_set_keymap(0, "s", "<Tab>", "v:lua.tab_complete()", { expr = true })
+    vim.api.nvim_buf_set_keymap(0, "i", "<S-Tab>", "v:lua.s_tab_complete()", { expr = true })
+    vim.api.nvim_buf_set_keymap(0, "s", "<S-Tab>", "v:lua.s_tab_complete()", { expr = true })
+  end
+end
 return M