Adding floating terminal.

plugin/danterm.lua

@@ -0,0 +1,54 @@
+local t_opts = {silent = true}
+vim.keymap.set('t', '<C-n>', '<C-\\><C-N>', t_opts)
+vim.keymap.set('t', '<C-h>', '<cmd>Danterm<CR>')
+vim.keymap.set('n', '<leader>dt', '<cmd>Danterm<CR>')
+
+local state = {
+  floating = {
+    buf = -1,
+    win = -1,
+  }
+}
+
+local function dan_term(opts)
+  opts = opts or {}
+  local width = opts.width or math.floor(vim.o.columns * 0.8)
+  local height = opts.height or math.floor(vim.o.lines * 0.8)
+  local screen_width = vim.o.columns
+  local screen_height = vim.o.lines
+  local col = math.floor((screen_width - width) / 2)
+  local row = math.floor((screen_height - height) / 2)
+
+  local buf = nil
+  if vim.api.nvim_buf_is_valid(opts.buf) then
+    buf = opts.buf
+  else
+    buf = vim.api.nvim_create_buf(false, true)
+  end
+
+  local win_config = {
+    relative = 'editor',
+    width = width,
+    height = height,
+    col = col,
+    row = row,
+    style = 'minimal',
+    border = 'rounded', -- optional, choose 'none', 'single', 'double', etc.
+  }
+
+  local win = vim.api.nvim_open_win(buf, true, win_config)
+
+  return { buf = buf, win = win }
+end
+
+vim.api.nvim_create_user_command("Danterm", function()
+  if not vim.api.nvim_win_is_valid(state.floating.win) then
+    state.floating = dan_term { buf = state.floating.buf }
+    if vim.bo[state.floating.buf].buftype ~= "terminal" then
+      vim.cmd.term()
+      vim.api.nvim_input("i")
+    end
+  else
+    vim.api.nvim_win_hide(state.floating.win)
+  end
+end, {})