[Bug] Text input made readonly

[Ajaymamtora]

Description

When setting the buffer to start in visual mode, the text input is readonly. Seems similar to https://github.com/grapp-dev/nui-components.nvim/issues/17

Repro

local M = {}

vim.api.nvim_create_user_command("NuiGoToLine", function()
  M.go_to_line_nui()
end, {})

local function go_to_line(input)
  -- Print the input
  print(input)

  -- Check if the input matches the format LINE or LINE:COLUMN using a Lua pattern
  local line, column = input:match("^(%d+):?(%d*)$")

  -- Return early if the input is not in the correct format
  if not line then
    print("Input must be in the format LINE or LINE:COLUMN")
    return
  end

  -- Convert line and column to numbers
  line = tonumber(line)
  column = tonumber(column)

  -- Default to column 1 if no column is provided
  if column == 0 then
    column = 1
  end

  -- Go to the specified line and column
  vim.api.nvim_win_set_cursor(0, { line, column })
end

function M.go_to_line_nui()
  local n = require("nui-components")
  local event = require("nui.utils.autocmd").event

  local r, c = unpack(vim.api.nvim_win_get_cursor(0))

  local signal = n.create_signal({
    value = r .. ":" .. c,
  })

  local subscription = signal:observe(function(previous_state, current_state)
    -- call side effects
  end)

  local renderer = n.create_renderer({
    width = 80,
    height = 1,
  })

  renderer:add_mappings({
    {
      mode = { "n", "i", "v" },
      key = "<CR>",
      handler = function()
        go_to_line(signal.value:get_value())
        renderer:close()
      end,
    },
    {
      mode = { "n", "i" },
      key = "<C-q>",
      handler = function()
        renderer:close()
      end,
    },
  })
  local content
  content = n.text_input({
    autofocus = true,
    autoresize = true,
    size = 1,
    value = signal.value,
    border_label = "Go to line",
    placeholder = "L:C",
    max_lines = 1,
    on_change = function(value, component)
      signal.value = value

      component:modify_buffer_content(function()
        -- component:set_border_text("bottom", "Length: " .. #value, "right")
      end)
    end,
    on_mount = function(component)
      local initial_value = signal.value:get_value()

      component:set_border_text("bottom", "Current: " .. r .. ":" .. c, "right")

      local _close = function()
        renderer:close()
      end
      vim.api.nvim_create_autocmd({ "BufLeave" }, { callback = _close, once = true })

      -- Start visual mode
      vim.cmd("normal! v")
    end,
  })

  local body = function()
    return content
  end
  renderer:on_unmount(function()
    subscription:unsubscribe()
  end)

  renderer:render(body)
end

return M

Current Behavior

Input set to readonly

Expected Behavior

Dont set to readonly

NuiComponents version

Main caecfe2

Neovim version

0.10 stable

[Ajaymamtora]

Another issue: If I remove vim.cmd("normal! v") I can edit the input, but then entering cc in normal mode empties the text and makes the buffer readonly.

It looks like just exiting insert mode makes the input readonly.

[Ajaymamtora]

Removing autoresize seems to be a workaround

[henrique-smr]

It looks like component:modify_buffer_content sets the buffer option 'modifiable' to false

[henrique-smr]

I found a workaround, that basically do what component:modify_buffer_content does, but it restores the original value for the 'modifiable' option, instead of setting to false:

n.text_input({
    autofocus = true,
    autoresize = true,
    size = 1,
    value = signal.value,
    border_label = "Go to line",
    placeholder = "L:C",
    max_lines = 1,
    on_change = function(value, component)
      signal.value = value
      vim.schedule(function()
	    local modifiable = vim.api.nvim_get_option_value("modifiable", { buf = component.bufnr })
	    component:set_buffer_option("modifiable", true)
	    component:set_border_text("bottom", "Length: " .. #value, "right")
	    component:set_buffer_option("modifiable", modifiable)
       end)
    end,
    on_mount = function(component)
      local initial_value = signal.value:get_value()

      component:set_border_text("bottom", "Current: " .. r .. ":" .. c, "right")

      local _close = function()
        renderer:close()
      end
      vim.api.nvim_create_autocmd({ "BufLeave" }, { callback = _close, once = true })

      -- Start visual mode
      vim.cmd("normal! v")
    end,
  })