Class: OllamaAgent::TuiSlashReader

Inherits:
TTY::Reader
  • Object
show all
Defined in:
lib/ollama_agent/tui_slash_reader.rb

Overview

Extends TTY::Reader so Tab completes lines that start with / against a fixed candidate list.

Line editing and history match tty-reader read_line; only the Tab code path differs. Implementation synced from tty-reader 0.9.0 (lib/tty/reader.rb). rubocop:disable Metrics/PerceivedComplexity, Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/MethodLength, Style/StringConcatenation, Metrics/BlockNesting

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(completion_candidates:) ⇒ TuiSlashReader

Returns a new instance of TuiSlashReader.



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# File 'lib/ollama_agent/tui_slash_reader.rb', line 32

def initialize(completion_candidates:, **)
  super(**)
  @completion_candidates = Array(completion_candidates).uniq.sort
  @menu_lines_printed = 0
end

Instance Attribute Details

#command_palette ⇒ Object

Returns the value of attribute command_palette.



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# File 'lib/ollama_agent/tui_slash_reader.rb', line 30

def command_palette
  @command_palette
end

#completion_candidates ⇒ Object

Returns the value of attribute completion_candidates.



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# File 'lib/ollama_agent/tui_slash_reader.rb', line 30

def completion_candidates
  @completion_candidates
end

Instance Method Details

#read_line(prompt = "", value: "", echo: true, raw: true, nonblock: false) ⇒ Object 



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# File 'lib/ollama_agent/tui_slash_reader.rb', line 38

def read_line(prompt = "", value: "", echo: true, raw: true, nonblock: false)
  line = TTY::Reader::Line.new(value, prompt: prompt)
  screen_width = TTY::Screen.width
  buffer = ""

  output.print(line)

  while (codes = get_codes(echo: echo, raw: raw, nonblock: nonblock)) &&
        (code = codes[0])
    char = codes.pack("U*")

    if EXIT_KEYS.include?(console.keys[char])
      trigger_key_event(char, line: line.to_s)
      break
    end

    erase_completion_menu if raw && echo && completion_menu_visible?
    clear_display(line, screen_width) if raw && echo

    if console.keys[char] == :backspace || code == BACKSPACE
      unless line.start?
        line.left
        line.delete
      end
    elsif console.keys[char] == :delete || code == DELETE
      line.delete
    elsif console.keys[char].to_s =~ /ctrl_/
      # skip
    elsif console.keys[char] == :escape
      close_completion_menu if command_palette_active_for?(line.text)
    elsif console.keys[char] == :up
      if completion_menu_visible?
        apply_selected_suggestion!(line, @command_palette.menu.previous)
        buffer = line.text
      elsif history_previous?
        line.replace(mutable_copy(history_previous))
      end
    elsif console.keys[char] == :down
      if command_palette_active_for?(line.text)
        show_completion_menu(line.text) unless completion_menu_visible?
        apply_selected_suggestion!(line, @command_palette.menu.next)
        buffer = line.text
      elsif track_history?
        line.replace(mutable_copy(history_next? ? history_next : buffer))
      end
    elsif console.keys[char] == :left
      line.left
    elsif console.keys[char] == :right
      line.right
    elsif console.keys[char] == :home
      line.move_to_start
    elsif console.keys[char] == :end
      line.move_to_end
    elsif console.keys[char] == :tab
      buffer = apply_slash_tab!(line, char)
    else
      if raw && code == CARRIAGE_RETURN
        char = "\n"
        line.move_to_end
      end
      close_completion_menu if completion_menu_visible? && code != CARRIAGE_RETURN && code != NEWLINE
      line.insert(char)
      buffer = line.text
    end

    if (console.keys[char] == :backspace || code == BACKSPACE) && echo
      if raw
        output.print("\e[1X") unless line.start?
      else
        output.print(" " + (line.start? ? "" : "\b"))
      end
    end

    trigger_key_event(char, line: line.to_s)

    if raw && echo
      output.print(line.to_s)
      ghost = current_ghost_for(line)
      if ghost && line.end?
        output.print("\e[2m#{ghost.suffix}\e[0m")
        output.print(cursor.backward(ghost.suffix.length))
      end
      if char == "\n"
        line.move_to_start
      elsif !line.end?
        output.print(cursor.backward(line.text_size - line.cursor))
      end
      draw_menu_items if completion_menu_visible?
    end

    next unless [CARRIAGE_RETURN, NEWLINE].include?(code)

    buffer = ""
    output.puts unless echo
    break
  end

  add_to_history(line.text.rstrip) if track_history? && echo

  line.text
end