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Class: Kward::PromptInterface

Inherits:
Object
  • Object
show all
Includes:
ApprovalPrompt, ComposerController, ComposerRenderer, EditorAutoClosePairs, EditorAutoIndent, EditorController, EditorEndwise, EditorRenderer, EditorRunner, EditorSyntaxHighlighter, EditorWordCompletion, EmacsEditorMode, FileOverlay, GitPrompt, InteractiveRenderer, InteractiveState, KeyHandler, Layout, ModernEditorMode, OverlayRenderer, PluginUIRequests, ProjectBrowser, PromptRenderer, QuestionPrompt, RuntimeState, Screen, SelectionPrompt, SlashOverlay, TranscriptRenderer, VibeEditorMode, VibeInsertReadline
Defined in:
lib/kward/prompt_interface.rb,
lib/kward/prompt_interface/banner.rb,
lib/kward/prompt_interface/layout.rb,
lib/kward/prompt_interface/screen.rb,
lib/kward/prompt_interface/git_prompt.rb,
lib/kward/prompt_interface/key_handler.rb,
lib/kward/prompt_interface/editor/state.rb,
lib/kward/prompt_interface/file_overlay.rb,
lib/kward/prompt_interface/stream_state.rb,
lib/kward/prompt_interface/editor/buffer.rb,
lib/kward/prompt_interface/editor/runner.rb,
lib/kward/prompt_interface/editor/search.rb,
lib/kward/prompt_interface/runtime_state.rb,
lib/kward/prompt_interface/slash_overlay.rb,
lib/kward/prompt_interface/composer_state.rb,
lib/kward/prompt_interface/editor/endwise.rb,
lib/kward/prompt_interface/approval_prompt.rb,
lib/kward/prompt_interface/editor/renderer.rb,
lib/kward/prompt_interface/project_browser.rb,
lib/kward/prompt_interface/prompt_renderer.rb,
lib/kward/prompt_interface/question_prompt.rb,
lib/kward/prompt_interface/editor/kill_ring.rb,
lib/kward/prompt_interface/overlay_renderer.rb,
lib/kward/prompt_interface/selection_prompt.rb,
lib/kward/prompt_interface/composer_renderer.rb,
lib/kward/prompt_interface/editor/controller.rb,
lib/kward/prompt_interface/editor/modes/vibe.rb,
lib/kward/prompt_interface/editor/selections.rb,
lib/kward/prompt_interface/editor/vibe_state.rb,
lib/kward/prompt_interface/interactive/state.rb,
lib/kward/prompt_interface/transcript_buffer.rb,
lib/kward/prompt_interface/editor/auto_indent.rb,
lib/kward/prompt_interface/editor/file_marker.rb,
lib/kward/prompt_interface/editor/modes/emacs.rb,
lib/kward/prompt_interface/editor/status_text.rb,
lib/kward/prompt_interface/plugin_ui_requests.rb,
lib/kward/prompt_interface/composer_controller.rb,
lib/kward/prompt_interface/editor/modes/modern.rb,
lib/kward/prompt_interface/editor/runner_state.rb,
lib/kward/prompt_interface/editor/undo_history.rb,
lib/kward/prompt_interface/transcript_renderer.rb,
lib/kward/prompt_interface/interactive/renderer.rb,
lib/kward/prompt_interface/editor/word_completion.rb,
lib/kward/prompt_interface/interactive/controller.rb,
lib/kward/prompt_interface/editor/auto_close_pairs.rb,
lib/kward/prompt_interface/editor/indent_navigation.rb,
lib/kward/prompt_interface/editor/syntax_highlighter.rb,
lib/kward/prompt_interface/editor/modes/vibe_insert_readline.rb

Overview

Interactive terminal UI used by the CLI frontend.

Defined Under Namespace

Modules: ApprovalPrompt, ComposerController, ComposerRenderer, EditorAutoClosePairs, EditorAutoIndent, EditorController, EditorEndwise, EditorRenderer, EditorRunner, EditorStatusText, EditorSyntaxHighlighter, EditorWordCompletion, EmacsEditorMode, FileOverlay, GitPrompt, InteractiveRenderer, InteractiveState, KeyHandler, Layout, ModernEditorMode, OverlayRenderer, PluginUIRequests, ProjectBrowser, PromptRenderer, QuestionPrompt, RuntimeState, Screen, SelectionPrompt, SlashOverlay, TranscriptRenderer, VibeEditorMode, VibeInsertReadline Classes: Banner, ComposerState, EditorBuffer, EditorFileMarker, EditorIndentNavigation, EditorKillRing, EditorRunnerState, EditorSearch, EditorSelections, EditorState, EditorUndoHistory, InteractiveController, StreamState, SubmittedInput, TerminalHandoffOutput, TranscriptBuffer, VibeEditorState

Constant Summary collapse

HELP_TEXT = 
"Enter sends • Shift+Enter newline • / commands • @ files • ↑/↓ history • Ctrl+D exits".freeze
BUSY_HELP_TEXT = 
"Ctrl+C cancels".freeze
SPINNER_FRAMES = 
%w[· • ● •].freeze
SPINNER_INTERVAL = 
0.16
1.0
COMPOSER_STATUS_REFRESH_INTERVAL = 
1.0
COMPLETION_DISPLAY_SECONDS = 
0.8
RESPONSE_ARRIVAL_SECONDS = 
0.4
BUSY_ELAPSED_DELAY_SECONDS = 
2.0
TRANSCRIPT_COMPOSER_GAP_ROWS = 
1
COMPOSER_MAX_INPUT_ROWS = 
6
IMAGE_VIEWER_MAX_ROWS = 
8
TRANSCRIPT_BUFFER_LIMIT = 
200_000
Banner::MESSAGE
KEYBOARD_PROTOCOL_ENABLE = 
TerminalSequences::KEYBOARD_PROTOCOL_ENABLE
KEYBOARD_PROTOCOL_RESTORE = 
TerminalSequences::KEYBOARD_PROTOCOL_RESTORE
BRACKETED_PASTE_ENABLE = 
TerminalSequences::BRACKETED_PASTE_ENABLE
BRACKETED_PASTE_RESTORE = 
TerminalSequences::BRACKETED_PASTE_RESTORE
BRACKETED_PASTE_START = 
TerminalSequences::BRACKETED_PASTE_START
BRACKETED_PASTE_END = 
TerminalSequences::BRACKETED_PASTE_END
SYNCHRONIZED_OUTPUT_ENABLE = 
TerminalSequences::SYNCHRONIZED_OUTPUT_ENABLE
SYNCHRONIZED_OUTPUT_DISABLE = 
TerminalSequences::SYNCHRONIZED_OUTPUT_DISABLE
CURSOR_SHOW = 
TerminalSequences::CURSOR_SHOW
CURSOR_HIDE = 
TerminalSequences::CURSOR_HIDE
CURSOR_SHAPE_DEFAULT = 
TerminalSequences::CURSOR_SHAPE_DEFAULT
CURSOR_SHAPE_BAR = 
TerminalSequences::CURSOR_SHAPE_BAR
SHIFT_ENTER_SEQUENCES = 
TerminalKeys::SHIFT_ENTER
EXIT_INPUT = 
:exit_input
CANCEL_INPUT = 
:cancel_input
SELECT_CANCEL = 
:select_cancel
SELECT_CONTINUE = 
:select_continue
SELECT_ACTION_MINIMUM_BUSY_SECONDS = 
1.0

Constants included from VibeEditorMode

VibeEditorMode::VIBE_PAIR_TEXT_OBJECTS, VibeEditorMode::VIBE_RUBY_BLOCK_OPENERS, VibeEditorMode::VIBE_RUBY_EXTENSIONS, VibeEditorMode::VIBE_RUBY_PATHS, VibeEditorMode::VIBE_SIMPLE_MOTION_KEYS, VibeEditorMode::VIBE_VISUAL_LINE_MOVE_CONTROLS

Constants included from EditorAutoIndent

EditorAutoIndent::C_LIKE_INDENT_LANGUAGES, EditorAutoIndent::EDITOR_SHIFT_TAB_SEQUENCES, EditorAutoIndent::EDITOR_TAB_SEQUENCES, EditorAutoIndent::LUA_INDENT_KEYWORDS, EditorAutoIndent::PUNCTUATION_INDENT_LANGUAGES, EditorAutoIndent::PUNCTUATION_PAIRS, EditorAutoIndent::PYTHON_INDENT_KEYWORDS, EditorAutoIndent::RUBY_INDENT_KEYWORDS, EditorAutoIndent::SHELL_DEDENT_KEYWORDS, EditorAutoIndent::SHELL_INDENT_KEYWORDS

Constants included from EditorWordCompletion

EditorWordCompletion::EDITOR_COMPLETION_PREFIX_PATTERN, EditorWordCompletion::EDITOR_COMPLETION_SUFFIX_PATTERN, EditorWordCompletion::EDITOR_COMPLETION_WORD_PATTERN

Constants included from EditorEndwise

EditorEndwise::ENDWISE_ENDLESS_DEFINITION, EditorEndwise::ENDWISE_LANGUAGES, EditorEndwise::ENDWISE_LINE_PARSE_LIMIT, EditorEndwise::ENDWISE_SINGLE_LINE_DEFINITION

Constants included from EditorAutoClosePairs

EditorAutoClosePairs::AUTO_CLOSE_CLOSERS, EditorAutoClosePairs::AUTO_CLOSE_OPENERS, EditorAutoClosePairs::AUTO_CLOSE_PAIRS, EditorAutoClosePairs::AUTO_CLOSE_QUOTES, EditorAutoClosePairs::WORD_CHARACTER

Constants included from EditorSyntaxHighlighter

EditorSyntaxHighlighter::CSS_EXTENSIONS, EditorSyntaxHighlighter::CSS_PATTERN, EditorSyntaxHighlighter::ERB_CLOSE_PATTERN, EditorSyntaxHighlighter::ERB_EXTENSIONS, EditorSyntaxHighlighter::ERB_OPEN_PATTERN, EditorSyntaxHighlighter::GENERIC_STRING_NUMBER_PATTERN, EditorSyntaxHighlighter::HTML_EXTENSIONS, EditorSyntaxHighlighter::HTML_TAG_START_PATTERN, EditorSyntaxHighlighter::JSON_EXTENSIONS, EditorSyntaxHighlighter::JSON_PATTERN, EditorSyntaxHighlighter::LANGUAGE_DEFINITIONS, EditorSyntaxHighlighter::MARKDOWN_EXTENSIONS, EditorSyntaxHighlighter::MARKDOWN_PATTERN, EditorSyntaxHighlighter::RUBY_EXTENSIONS, EditorSyntaxHighlighter::RUBY_FILENAMES, EditorSyntaxHighlighter::RUBY_KEYWORDS, EditorSyntaxHighlighter::RUBY_PATTERN, EditorSyntaxHighlighter::SCSS_EXTENSIONS, EditorSyntaxHighlighter::SQL_EXTENSIONS, EditorSyntaxHighlighter::SQL_PATTERN, EditorSyntaxHighlighter::YAML_EXTENSIONS, EditorSyntaxHighlighter::YAML_PATTERN

Constants included from ProjectBrowser

ProjectBrowser::IMAGE_VIEWER_CELL_HEIGHT_TO_WIDTH, ProjectBrowser::IMAGE_VIEWER_MAX_ZOOM, ProjectBrowser::IMAGE_VIEWER_MIN_ZOOM, ProjectBrowser::IMAGE_VIEWER_ZOOM_STEP, ProjectBrowser::PROJECT_BROWSER_DIRECTORY_ICON, ProjectBrowser::PROJECT_BROWSER_EXTENSION_ICONS, ProjectBrowser::PROJECT_BROWSER_FILENAME_ICONS, ProjectBrowser::PROJECT_BROWSER_FILE_ICON, ProjectBrowser::PROJECT_BROWSER_RESULT_LIMIT, ProjectBrowser::PROJECT_BROWSER_ROOT, ProjectBrowser::PROJECT_BROWSER_STATE_VERSION

Instance Method Summary collapse

Methods included from GitPrompt

#git_commit_message, #open_modal_diff_viewer

Methods included from ApprovalPrompt

#ask_tool_approval

Methods included from PluginUIRequests

#request_plugin_ui

Methods included from ProjectBrowser

#open_project_browser, #open_project_browser_locked

Constructor Details

#initialize(input: $stdin, output: $stdout, slash_commands: [], overlay_settings: nil, project_browser_icon_theme: "off", footer: nil, composer_status: nil, busy_help: true, attachment_badges: nil, attachment_parser: nil, banner_message: nil, tab_keybindings: nil, prompt_history: nil, workspace_root: Dir.pwd, editor_mode: nil, editor_mode_source: nil, editor_auto_indent: true, editor_auto_indent_source: nil, editor_auto_close_pairs: true, editor_auto_close_pairs_source: nil, editor_soft_wrap: true, editor_soft_wrap_source: nil, editor_bar_cursor: true, editor_bar_cursor_source: nil, editor_line_numbers: "absolute", editor_line_numbers_source: nil, diff_view: "auto", diff_view_source: nil, editor_runners_source: nil, redraw_handler: nil) ⇒ PromptInterface

Returns a new instance of PromptInterface.



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# File 'lib/kward/prompt_interface.rb', line 181

def initialize(input: $stdin, output: $stdout, slash_commands: [], overlay_settings: nil, project_browser_icon_theme: "off", footer: nil, composer_status: nil, busy_help: true, attachment_badges: nil, attachment_parser: nil, banner_message: nil, tab_keybindings: nil, prompt_history: nil, workspace_root: Dir.pwd, editor_mode: nil, editor_mode_source: nil, editor_auto_indent: true, editor_auto_indent_source: nil, editor_auto_close_pairs: true, editor_auto_close_pairs_source: nil, editor_soft_wrap: true, editor_soft_wrap_source: nil, editor_bar_cursor: true, editor_bar_cursor_source: nil, editor_line_numbers: "absolute", editor_line_numbers_source: nil, diff_view: "auto", diff_view_source: nil, editor_runners_source: nil, redraw_handler: nil)
  @input_io = input
  @output_io = output
  # Logical state may change during a child handoff, but only the owner may render.
  @terminal_owner = :kward
  @terminal_handoff_mode = nil
  @terminal_handoff_keyboard_protocol_reset = false
  @reader = TTY::Reader.new(input: input, output: output, interrupt: :error)
  @mutex = Mutex.new
  @prompt_history = prompt_history
  @workspace_root = File.expand_path(workspace_root.to_s.empty? ? Dir.pwd : workspace_root)
  @composer = ComposerState.new
  load_history(@prompt_history.values) if @prompt_history
  @started = false
  @asking = false
  @busy = false
  @busy_activity = "thinking"
  @busy_activity_visible = true
  @busy_started_at = nil
  @last_busy_elapsed = nil
  @completion_status = nil
  @response_arrival_until = nil
  @queued_count = 0
  @steered_count = 0
  @spinner_frame_index = 0
  @last_spinner_tick = monotonic_now
  @last_footer_refresh = nil
  @cached_footer_text = nil
  @last_composer_status_refresh = 0.0
  @cached_composer_status_text = nil
  @prompt_label = "You>"
  @assistant_label = "Assistant"
  @stream_state = StreamState.new
  @rendered_rows = 0
  @last_composer_rows = []
  @cursor_rendered_row = 0
  @transcript_buffer = TranscriptBuffer.new(limit: TRANSCRIPT_BUFFER_LIMIT)
  @transcript_viewport_rows = 0
  @restoring_transcript = false
  @pending_keys = []
  @handoff_input_buffer = +"".b
  @completion_provider = nil
  @completion_cycle = nil
  @completion_overlay = nil
  @redraw_handler = redraw_handler
  @transcript_redraw_requested = false
  @original_console_mode = nil
  @raw_mode_active = false
  @slash_commands = normalize_slash_commands(slash_commands)
  @slash_selection_index = 0
  @slash_overlay_dismissed_input = nil
  @slash_overlay_disabled = false
  @file_selection_index = 0
  @file_overlay_dismissed_token = nil
  @file_open_dismissed_token = nil
  @file_editor_open_status = nil
  @file_mention_paths = nil
  @file_mention_discovery_thread = nil
  @file_mention_discovery_root = nil
  @file_mention_discovery_token = nil
  @project_browser_file_paths = nil
  @project_browser_state = nil
  @image_viewer_state = nil
  @terminal_image_protocol = nil
  @project_browser_restore_after_editor = false
  @editor_state = nil
  @editor_runner_state = nil
  @editor_runner_completion = nil
  @editor_runner_output_visible = false
  @editor_runner_selection_anchor = nil
  @editor_runner_selection_cursor = nil
  @editor_runner_mouse_dragging = false
  @editor_runner_last_click = nil
  @editor_agent_suspended = false
  @editor_prompt_active = false
  @editor_prompt_input = ""
  @interactive_state = nil
  @last_interactive_tick = monotonic_now
  @select_state = nil
  @question_state = nil
  @question_prompt_active = false
  @git_state = nil
  @last_width = screen_width
  @last_height = screen_height
  @reserved_rows = 0
  @color_enabled = ANSI.enabled?(output)
  @cursor_visible = true
  @editor_bar_cursor_active = false
  @synchronized_output_depth = 0
  @overlay_settings = normalize_overlay_settings(overlay_settings)
  @project_browser_icon_theme = normalize_project_browser_icon_theme(project_browser_icon_theme)
  @footer = footer
  @composer_status = composer_status
  @busy_help = busy_help
  @attachment_badges = attachment_badges
  @attachment_parser = attachment_parser
  @banner = Banner.new(message: banner_message, screen_height: method(:screen_height))
  @tabs = []
  @active_tab_index = 0
  @tab_keybindings = normalize_tab_keybindings(tab_keybindings)
  @editor_mode = normalize_editor_mode(editor_mode)
  @editor_mode_source = editor_mode_source
  @editor_auto_indent = editor_auto_indent != false
  @editor_auto_indent_source = editor_auto_indent_source
  @editor_auto_close_pairs = editor_auto_close_pairs != false
  @editor_auto_close_pairs_source = editor_auto_close_pairs_source
  @editor_soft_wrap = editor_soft_wrap != false
  @editor_soft_wrap_source = editor_soft_wrap_source
  @editor_bar_cursor = editor_bar_cursor != false
  @editor_bar_cursor_source = editor_bar_cursor_source
  @editor_line_numbers = normalize_editor_line_numbers(editor_line_numbers)
  @editor_line_numbers_source = editor_line_numbers_source
  @diff_view = DiffViewMode.normalize(diff_view)
  @diff_view_source = diff_view_source
  @editor_runners_source = editor_runners_source
end

Instance Method Details

#ask(message = "You>") ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 565

def ask(message = "You>")
  was_composing = @started && @asking
  start
  @mutex.synchronize do
    preserve_input = was_composing && !@busy && !composer_input.empty?
    @prompt_label = message.to_s
    unless preserve_input
      self.composer_input = @composer.prefill_input.to_s
      @composer.prefill_input = nil
      self.composer_cursor = composer_input.length
      @composer.clear_attachments
      reset_history_navigation
    end
    @pending_keys.clear
    @completion_cycle = nil
    @completion_overlay = nil
    @asking = true
    @busy = false
    @queued_count = 0
    render_prompt_locked
  end

  loop do
    key = read_key(nonblock: true)
    result = nil
    @mutex.synchronize do
      if key.nil?
        resized = handle_resize_locked
        footer_refreshed = tick_footer_locked
        completion_changed = tick_completion_locked
        render_prompt_locked if resized || footer_refreshed || completion_changed
      else
        result = handle_key(key)
        render_prompt_locked unless result.is_a?(String) || result == EXIT_INPUT || prompt_action_result?(result)
      end
    end
    perform_pending_transcript_redraw
    return result if result.is_a?(String) || prompt_action_result?(result)
    return nil if result == EXIT_INPUT

    sleep 0.02 if key.nil?
  end
ensure
  perform_pending_transcript_redraw
end

#ask_user_question(questions) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 683

def ask_user_question(questions)
  return [] if questions.empty?

  start
  saved_state = nil
  answers = []
  @mutex.synchronize do
    @question_prompt_active = true
    saved_state = begin_question_prompt_state
  end

  questions.each_with_index do |question, index|
    answer = ask_single_user_question(question, index + 1, questions.length)
    if answer == SELECT_CANCEL
      finish_question_prompt(saved_state)
      return nil
    end
    answers << answer
  end

  finish_question_prompt(saved_state)
  answers
rescue StandardError
  finish_question_prompt(saved_state) if saved_state
  raise
end

#begin_busy_input(message = "You>", activity: "thinking", show_activity: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 925

def begin_busy_input(message = "You>", activity: "thinking", show_activity: true)
  start
  @mutex.synchronize do
    @prompt_label = message.to_s
    @busy_activity = normalize_busy_activity(activity)
    @busy_activity_visible = show_activity
    @completion_status = nil
    @response_arrival_until = nil
    self.composer_input = ""
    self.composer_cursor = 0
    @composer.clear_attachments
              @pending_keys.clear
    @asking = true
    @busy = true
    @busy_started_at = monotonic_now
    @last_busy_elapsed = nil
    @queued_count = 0
    @steered_count = 0
    
    reset_history_navigation
    render_prompt_locked
  end
end

#clear_steered_count ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 976

def clear_steered_count
  @mutex.synchronize do
    @steered_count = 0
    @busy_activity = "thinking"
    render_prompt_locked if @asking
  end
end

#clear_transcript ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1152

def clear_transcript
  @mutex.synchronize do
    @transcript_buffer.clear
    @transcript_viewport_rows = 0
    @stream_state.finish_block
    @stream_state.reset
    width, height = screen_size
    with_synchronized_output_locked { redraw_screen_locked(width: width, height: height) }
    flush_output_locked
  end
end

#close ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 321

def close
  @mutex.synchronize do
    return unless @started

    clear_image_viewer_output_locked if image_viewer_active?
    clear_prompt_for_output_locked
    restore_scroll_region_locked
    disable_editor_mouse_reporting(force: true)
    print_output_locked(BRACKETED_PASTE_RESTORE)
    print_output_locked(KEYBOARD_PROTOCOL_RESTORE)
    restore_editor_cursor_shape_locked
    set_cursor_visible_locked(true, force: true)
    puts_output_locked
    flush_output_locked
    @started = false
    restore_console_mode_locked
  end
end

#commit_editor_prompt(session) ⇒ Object

Commits an agent draft as one undoable editor operation.



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# File 'lib/kward/prompt_interface.rb', line 452

def commit_editor_prompt(session)
  @mutex.synchronize do
    return false unless editor_active? && @editor_agent_suspended
    return false unless @editor_state.buffer == session.initial_content

    changed = @editor_state.replace_buffer(session.content)
    @editor_state.status = changed ? "Agent updated buffer · :w save" : "Agent made no buffer changes"
    render_prompt_locked if @started
    changed
  end
end

#composer_snapshot ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 835

def composer_snapshot
  @mutex.synchronize do
    {
      composer: @composer,
      prompt_label: @prompt_label
    }
  end
end

#edit_file(path, base_dir: nil, allow_new: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 493

def edit_file(path, base_dir: nil, allow_new: true)
  start(render: false)
  opened = @mutex.synchronize do
    open_editor(path, allow_new: allow_new, base_dir: base_dir || prompt_workspace_root, restrict_to_workspace: false).tap do
      render_prompt_locked
    end
  end
  return false unless opened

  run_editor
rescue StandardError
  @mutex.synchronize do
    close_editor if editor_active?
    render_prompt_locked if @started
  end
  raise
end

#editing_file? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kward/prompt_interface.rb', line 418

def editing_file?
  @mutex.synchronize { editor_active? }
end

#editor_prompt_context ⇒ Object

Returns the active Vibe or Modern editor buffer for an agent prompt turn.



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# File 'lib/kward/prompt_interface.rb', line 423

def editor_prompt_context
  @mutex.synchronize do
    next nil unless editor_active? && (@editor_state.vibe? || @editor_state.modern?)

    {
      path: @editor_state.path,
      display_path: @editor_state.display_path,
      workspace_root: @workspace_root,
      language: @editor_state.language,
      content: @editor_state.buffer.dup,
      cursor: @editor_state.cursor_line_and_column,
      selection: @editor_state.selected_text
    }
  end
end

#filter_terminal_handoff_input(chunk) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1013

def filter_terminal_handoff_input(chunk)
  @mutex.synchronize { filter_terminal_handoff_input_locked(chunk) }
end

#finish_busy_input ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 984

def finish_busy_input
  @mutex.synchronize do
    @last_busy_elapsed = monotonic_now - @busy_started_at if @busy_started_at
    @busy_started_at = nil
    @busy = false
    @busy_activity = "thinking"
    @busy_activity_visible = true
    @response_arrival_until = nil
    @queued_count = 0
    @steered_count = 0
    @asking = true
    render_prompt_locked
  end
end

#finish_interactive ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 726

def finish_interactive
  @mutex.synchronize do
    return unless @interactive_state

    snapshot = @interactive_state[:snapshot]
    @interactive_state = nil
    restore_composer_snapshot_locked(snapshot)
    redraw_screen_locked if @started
    flush_output_locked
  end
end

#finish_stream_block ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1094

def finish_stream_block
  @mutex.synchronize do
    write_stream_block_locked(nil, "", finish: true)
  end
end

#inline_image_protocol ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 476

def inline_image_protocol
  @mutex.synchronize { terminal_image_protocol }
end

#interactive_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kward/prompt_interface.rb', line 714

def interactive_active?
  @mutex.synchronize { interactive_active_locked? }
end

#interactive_exited? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kward/prompt_interface.rb', line 718

def interactive_exited?
  @mutex.synchronize do
    return false unless @interactive_state

    @interactive_state[:controller].exited?
  end
end

#modal_active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kward/prompt_interface.rb', line 710

def modal_active?
  @mutex.synchronize { modal_active_locked? }
end

#new_composer_state_with_history ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 888

def new_composer_state_with_history
  composer = ComposerState.new
  composer.load_history(@prompt_history.values) if @prompt_history
  composer
end

#picker_choice_width ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 636

def picker_choice_width
  [overlay_card_width(screen_width) - 6, 1].max
end

#poll_input ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1017

def poll_input
  key = read_key(nonblock: true)
  @mutex.synchronize do
    if interactive_active_locked?
      if key.nil?
        resized = handle_resize_locked
        ticked = tick_interactive_locked
        render_prompt_locked if resized || ticked
        return :interactive_exited if @interactive_state[:controller].exited?
        return nil
      end

      route_interactive_key(key)
      ticked = tick_interactive_locked
      render_prompt_locked if ticked
      return :interactive_exited if @interactive_state[:controller].exited?
      return nil
    end

    if key.nil?
      resized = handle_resize_locked
      spun = 
      footer_refreshed = tick_footer_locked
      completion_changed = tick_completion_locked
      render_prompt_locked if resized || spun || footer_refreshed || completion_changed
      return nil
    end

    if modal_active_locked?
      queue_pending_keys(key)
      return nil
    end

    result = handle_key(key)
    render_prompt_locked unless [EXIT_INPUT, CANCEL_INPUT].include?(result) || prompt_action_result?(result)
    [EXIT_INPUT, CANCEL_INPUT].include?(result) ? result : result
  end
ensure
  perform_pending_transcript_redraw
end

#prefill_input(value) ⇒ Object

Prefills the next composer input without submitting it.



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# File 'lib/kward/prompt_interface.rb', line 612

def prefill_input(value)
  @mutex.synchronize do
    @composer.prefill_input = value.to_s
  end
end

#print_visual_banner(message = nil) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1064

def print_visual_banner(message = nil)
  @mutex.synchronize do
    width, height = screen_size
    rows = banner_rows(width, message: message)
    return if rows.empty?

    with_synchronized_output_locked do
      prepare_transcript_output_locked
      write_transcript_text_locked(rows.join("\n"))
      write_transcript_text_locked("\n")
      remember_transcript_viewport_locked(height)
      @stream_state.finish_block
      restore_composer_cursor_locked
    end
    flush_output_locked
  end
end

#record_transient_terminal_output(text, render: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1100

def record_transient_terminal_output(text, render: true)
  value = text.to_s
  return if value.empty?

  @mutex.synchronize do
    append_transcript_buffer(value)
    append_transcript_buffer("\n") unless value.end_with?("\n")
    @stream_state.finish_block
    width, height = screen_size
    remember_transcript_viewport_locked(height)
    next unless render

    with_synchronized_output_locked { redraw_screen_locked(width: width, height: height) }
    flush_output_locked
  end
end

#redraw ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1134

def redraw
  @mutex.synchronize do
    width, height = screen_size
    with_synchronized_output_locked { redraw_screen_locked(width: width, height: height) }
    flush_output_locked
  end
end

#refresh_composer_status ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1142

def refresh_composer_status
  @mutex.synchronize do
    @cached_footer_text = nil
    @last_footer_refresh = nil
    @cached_composer_status_text = nil
    @last_composer_status_refresh = 0.0
    render_prompt_locked if @started && @asking
  end
end

#restore_composer_snapshot(snapshot) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 860

def restore_composer_snapshot(snapshot)
  @mutex.synchronize do
    restore_composer_snapshot_locked(snapshot)
    restore_editor_snapshot_locked(snapshot)
    redraw_screen_locked if @started
  end
end

#restore_composer_snapshot_locked(snapshot) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 880

def restore_composer_snapshot_locked(snapshot)
  @composer = snapshot[:composer] || new_composer_state_with_history
  @completion_cycle = nil
  @completion_overlay = nil
  @prompt_label = snapshot[:prompt_label].to_s.empty? ? "You>" : snapshot[:prompt_label].to_s
  @last_composer_rows = []
end

#restore_editor_snapshot_locked(snapshot) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 894

def restore_editor_snapshot_locked(snapshot)
  editor_was_active = editor_active?
  cancel_editor_runner
  @editor_runner_state = nil
  @editor_runner_completion = nil
  @editor_runner_output_visible = false
  clear_editor_runner_selection
  @editor_state = snapshot[:editor_state]&.dup
  editor_is_active = editor_active?

  if editor_is_active
    enable_editor_mouse_reporting unless editor_was_active
  else
    disable_editor_mouse_reporting(force: true)
  end
end

#restore_tab_view_snapshot(snapshot) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 868

def restore_tab_view_snapshot(snapshot)
  @mutex.synchronize do
    restore_composer_snapshot_locked(snapshot)
    restore_editor_snapshot_locked(snapshot)
    @transcript_buffer = snapshot[:transcript_buffer] || TranscriptBuffer.new(limit: TRANSCRIPT_BUFFER_LIMIT)
    @transcript_viewport_rows = snapshot[:transcript_viewport_rows].to_i
    @stream_state = snapshot[:stream_state] || StreamState.new
    @last_composer_rows = []
    redraw_screen_locked if @started
  end
end

#restore_transcript ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 364

def restore_transcript
  start(render: false) unless @started
  @mutex.synchronize do
    print_output_locked(SYNCHRONIZED_OUTPUT_ENABLE)
    clear_prompt_for_output_locked unless @rendered_rows.zero? && @last_composer_rows.empty?
    @transcript_buffer.clear
    @transcript_viewport_rows = 0
    @stream_state.finish_block
    @stream_state.reset
    @restoring_transcript = true
  end

  yield
ensure
  @mutex.synchronize do
    @restoring_transcript = false
    width, height = screen_size
    redraw_screen_locked(width: width, height: height)
    print_output_locked(SYNCHRONIZED_OUTPUT_DISABLE)
    flush_output_locked
  end
end

#resume_editor_for_agent(status: nil) ⇒ Object

Resumes the editor after an agent prompt turn.



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# File 'lib/kward/prompt_interface.rb', line 465

def resume_editor_for_agent(status: nil)
  @mutex.synchronize do
    return false unless editor_active?

    @editor_agent_suspended = false
    @editor_state.status = status.to_s unless status.to_s.empty?
    render_prompt_locked if @started
    true
  end
end

#review_document(title:, content:, &on_save) ⇒ Object

Opens an in-memory document editor. The callback receives edited content when the user saves; return an error message to keep the editor open.

Raises:

  • (ArgumentError) 


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# File 'lib/kward/prompt_interface.rb', line 525

def review_document(title:, content:, &on_save)
  raise ArgumentError, "review_document requires a save callback" unless on_save

  start(render: false)
  opened = @mutex.synchronize do
    @editor_save_callback = on_save
    open_scratchpad(:markdown, content: content).tap do
      @editor_state.status = "#{title} · Ctrl+S save · Ctrl+Q cancel"
      render_prompt_locked
    end
  end
  return false unless opened

  run_editor
end

#run_editor ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 541

def run_editor
  loop do
    key = read_key(nonblock: true)
    action = nil
    editor_open = @mutex.synchronize do
      if key.nil?
        resized = handle_resize_locked
        footer_refreshed = tick_footer_locked
        render_prompt_locked if resized || footer_refreshed
      else
        result = handle_key(key)
        action = result if prompt_action_result?(result)
        render_prompt_locked unless result.is_a?(String) || result == EXIT_INPUT || prompt_action_result?(result)
      end
      editor_active?
    end
    return action if action
    break unless editor_open

    sleep 0.02 if key.nil?
  end
  true
end

#say(message) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 340

def say(message)
  write_transcript_message(message, preserve_composer: false)
end

#say_visual(message) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 348

def say_visual(message)
  @mutex.synchronize do
    return if @restoring_transcript

    with_synchronized_output_locked do
      clear_prompt_for_output_locked
      text = message.to_s
      write_visual_transcript_text_locked(text)
      write_visual_transcript_text_locked("\n") unless text.end_with?("\n")
      @stream_state.finish_block
      render_prompt_after_output_locked
    end
    flush_output_locked
  end
end

#scratchpad(language = :text) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 511

def scratchpad(language = :text)
  start(render: false)
  opened = @mutex.synchronize do
    open_scratchpad(language).tap do
      render_prompt_locked
    end
  end
  return false unless opened

  run_editor
end

#select(message, choices, title: "Sessions", custom: false, initial_index: 0, action_keys: {}, action_handlers: {}) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 640

def select(message, choices, title: "Sessions", custom: false, initial_index: 0, action_keys: {}, action_handlers: {})
  return nil if choices.empty? && !custom

  start
  @mutex.synchronize do
    prepare_modal_input_locked(message, clear_attachments: true)
    choice_labels = choices.map(&:to_s)
    selection_index = choice_labels.empty? ? 0 : [[initial_index.to_i, 0].max, choice_labels.length - 1].min
    @select_state = { choices: choice_labels, selection_index: selection_index, title: title.to_s, custom: custom, action_keys: normalized_select_action_keys(action_keys), search_active: false }
    render_prompt_locked
  end

  loop do
    key = read_key(nonblock: true)
    result = nil
    @mutex.synchronize do
      if key.nil?
        resized = handle_resize_locked
        footer_refreshed = tick_footer_locked
        render_prompt_locked if resized || footer_refreshed
      else
        result = handle_select_key(key)
        result = drain_pending_select_keys_locked(result)
        render_prompt_locked unless result.is_a?(String) || select_action_result?(result) || result == SELECT_CANCEL
      end
    end

    if select_action_result?(result) && select_action_handler(result, action_handlers)
      action_result = run_select_action(result, select_action_handler(result, action_handlers))
      next if action_result == SELECT_CONTINUE

      return action_result
    end

    if result.is_a?(String) || select_action_result?(result) || result == SELECT_CANCEL
      finish_select_prompt(render: !select_deferred_finish_render?(result))
      return result == SELECT_CANCEL ? nil : result
    end

    sleep 0.02 if key.nil?
  end
end

#set_queued_count(count) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 960

def set_queued_count(count)
  @mutex.synchronize do
    @queued_count = count.to_i
    @steered_count = 0 if @queued_count.positive?
    render_prompt_locked if @asking
  end
end

#set_steered_count(count) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 968

def set_steered_count(count)
  @mutex.synchronize do
    @steered_count = count.to_i
    @queued_count = 0 if @steered_count.positive?
    render_prompt_locked if @asking
  end
end

#show_completion(status) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1006

def show_completion(status)
  @mutex.synchronize do
    @completion_status = completion_status(status)
    render_prompt_locked if @started && @asking
  end
end

#show_response_arrival ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 999

def show_response_arrival
  @mutex.synchronize do
    @response_arrival_until = monotonic_now + RESPONSE_ARRIVAL_SECONDS
    render_prompt_locked if @started && @asking && @busy
  end
end

#start(render: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 307

def start(render: true)
  @mutex.synchronize do
    return if @started

    enter_raw_mode_locked
    @started = true
    @asking = true
    disable_editor_mouse_reporting(force: true) unless editor_active?
    print_output_locked(KEYBOARD_PROTOCOL_ENABLE)
    print_output_locked(BRACKETED_PASTE_ENABLE)
    render_prompt_locked if render
  end
end

#start_interactive(title:, rows:, fps:) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 802

def start_interactive(title:, rows:, fps:)
  snapshot = composer_snapshot
  controller = InteractiveController.new(width: interactive_canvas_width, height: rows, fps: fps)
  start
  @mutex.synchronize do
    @interactive_state = {
      title: title.to_s,
      rows: rows,
      controller: controller,
      snapshot: snapshot
    }
    @last_interactive_tick = monotonic_now
    @asking = true
    @busy = false
    @last_composer_rows = []
    render_prompt_locked
  end
  controller
end

#start_stream_block(label) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1082

def start_stream_block(label)
  @mutex.synchronize do
    write_stream_block_locked(label, "", finish: false)
  end
end

#suspend_editor_for_agent ⇒ Object

Suspends the live editor while an agent prompt is running.



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# File 'lib/kward/prompt_interface.rb', line 440

def suspend_editor_for_agent
  @mutex.synchronize do
    return false unless editor_active? && !@editor_agent_suspended

    @editor_agent_suspended = true
    @editor_state.status = "Agent is working · Ctrl+C cancels"
    render_prompt_locked if @started
    true
  end
end

#tab_view_snapshot(include_transcript: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 844

def tab_view_snapshot(include_transcript: true)
  @mutex.synchronize do
    snapshot = {
      composer: @composer.dup,
      prompt_label: @prompt_label.dup,
      editor_state: @editor_state&.dup
    }
    if include_transcript
      snapshot[:transcript_buffer] = @transcript_buffer.dup
      snapshot[:transcript_viewport_rows] = @transcript_viewport_rows
      snapshot[:stream_state] = @stream_state.dup
    end
    snapshot
  end
end

#update_assistant_label(label) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1058

def update_assistant_label(label)
  @mutex.synchronize do
    @assistant_label = label.to_s.empty? ? "Assistant" : label.to_s
  end
end

#update_busy_activity(activity) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 949

def update_busy_activity(activity)
  @mutex.synchronize do
    value = normalize_busy_activity(activity)
    return false if value == @busy_activity

    @busy_activity = value
    render_prompt_locked if @started && @asking && @busy
    true
  end
end

#update_completion_provider(provider, slash_overlay: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 398

def update_completion_provider(provider, slash_overlay: true)
  @mutex.synchronize do
    @completion_provider = provider
    @completion_cycle = nil
    @completion_overlay = nil
    @slash_overlay_disabled = !slash_overlay
    render_prompt_locked if @started
  end
end

#update_overlay_settings(settings) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 911

def update_overlay_settings(settings)
  @mutex.synchronize do
    @overlay_settings = normalize_overlay_settings(settings)
    render_prompt_locked if @started && @asking
  end
end

#update_project_browser_icon_theme(theme) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 918

def update_project_browser_icon_theme(theme)
  @mutex.synchronize do
    @project_browser_icon_theme = normalize_project_browser_icon_theme(theme)
    render_prompt_locked if @started && @asking && project_browser_visible?
  end
end

#update_prompt_label(label) ⇒ Object

Updates the visible prompt label while the composer is active.



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# File 'lib/kward/prompt_interface.rb', line 619

def update_prompt_label(label)
  @mutex.synchronize do
    @prompt_label = label.to_s
    render_prompt_locked if @started && @asking
  end
end

#update_slash_commands(commands) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 298

def update_slash_commands(commands)
  @mutex.synchronize do
    @slash_commands = normalize_slash_commands(commands)
    reset_slash_selection
    @slash_overlay_dismissed_input = nil
    render_prompt_locked if @started
  end
end

#update_tabs(labels:, active_index: 0) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 822

def update_tabs(labels:, active_index: 0)
  @mutex.synchronize do
    normalized_labels = Array(labels).map { |label| normalize_tab_label(label) }
    normalized_index = active_index.to_i
    return false if @tabs == normalized_labels && @active_tab_index == normalized_index

    @tabs = normalized_labels
    @active_tab_index = normalized_index
    render_prompt_locked if @started && @asking
    true
  end
end

#update_workspace_root(root, prompt_history: nil) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 480

def update_workspace_root(root, prompt_history: nil)
  @mutex.synchronize do
    expanded_root = File.expand_path(root.to_s.empty? ? Dir.pwd : root)
    return false if expanded_root == @workspace_root

    @workspace_root = expanded_root
    @prompt_history = prompt_history if prompt_history
    load_history(@prompt_history.values) if @prompt_history
    reset_workspace_file_state_locked
    true
  end
end

#with_completion_provider(provider, slash_overlay: true) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 387

def with_completion_provider(provider, slash_overlay: true)
  previous_provider = @completion_provider
  previous_slash_overlay_disabled = @slash_overlay_disabled
  @completion_provider = provider
  @slash_overlay_disabled = !slash_overlay
  yield
ensure
  @completion_provider = previous_provider
  @slash_overlay_disabled = previous_slash_overlay_disabled
end

#with_inline_terminal_handoff(preserve_tab_keybindings: false, &block) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 738

def with_inline_terminal_handoff(preserve_tab_keybindings: false, &block)
  with_terminal_handoff(inline: true, preserve_tab_keybindings: preserve_tab_keybindings, &block)
end

#with_prompt_history(history) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 408

def with_prompt_history(history)
  previous_history = @prompt_history
  @prompt_history = history
  load_history(@prompt_history.values) if @prompt_history
  yield
ensure
  @prompt_history = previous_history
  load_history(@prompt_history.values) if @prompt_history
end

#with_terminal_handoff(inline: false, preserve_tab_keybindings: false) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 742

def with_terminal_handoff(inline: false, preserve_tab_keybindings: false)
  start
  input = nil
  output = nil
  transition = nil
  @mutex.synchronize do
    if inline
      handle_resize_locked
      reserve_composer_region_locked
      move_to_transcript_cursor_locked
    else
      clear_prompt_for_output_locked
      restore_scroll_region_locked
    end
    disable_editor_mouse_reporting(force: true)
    print_output_locked(BRACKETED_PASTE_RESTORE)
    print_output_locked(KEYBOARD_PROTOCOL_RESTORE) unless preserve_tab_keybindings
    @handoff_input_buffer.clear
    @terminal_handoff_keyboard_protocol_reset = false
    restore_editor_cursor_shape_locked
    set_cursor_visible_locked(true, force: true)
    flush_output_locked
    restore_console_mode_locked
    input = @input_io
    output = if preserve_tab_keybindings
      TerminalHandoffOutput.new(@output_io, on_keyboard_protocol_restore: -> {
        @terminal_handoff_keyboard_protocol_reset = true
      })
    else
      @output_io
    end
    transition = method(:switch_terminal_handoff_to_exclusive)
    @terminal_handoff_mode = inline ? :inline : :exclusive
    @terminal_owner = :child
  end

  yield(input, output, transition)
ensure
  @mutex.synchronize do
    @terminal_owner = :kward
    @terminal_handoff_mode = nil
    restore_scroll_region_locked
    print_output_locked(TerminalSequences::SGR_RESET)
    enter_raw_mode_locked
    if !preserve_tab_keybindings || @terminal_handoff_keyboard_protocol_reset
      print_output_locked(KEYBOARD_PROTOCOL_ENABLE)
    end
    print_output_locked(BRACKETED_PASTE_ENABLE)
    @handoff_input_buffer.clear
    @terminal_handoff_keyboard_protocol_reset = false
    disable_editor_mouse_reporting(force: true)
    restore_editor_cursor_shape_locked(force: true)
    @cursor_visible = nil
    @last_composer_rows = []
    width, height = screen_size
    with_synchronized_output_locked { redraw_screen_locked(width: width, height: height) }
    flush_output_locked
  end
end

#write_delta(delta) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1088

def write_delta(delta)
  @mutex.synchronize do
    write_stream_block_locked(nil, delta.to_s, finish: false)
  end
end

#write_stream_block(label, delta, finish: false) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1128

def write_stream_block(label, delta, finish: false)
  @mutex.synchronize do
    write_stream_block_locked(label, delta.to_s, finish: finish)
  end
end

#write_transcript(message) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 344

def write_transcript(message)
  write_transcript_message(message, preserve_composer: true)
end

#write_transcript_delta(delta) ⇒ Object 



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# File 'lib/kward/prompt_interface.rb', line 1117

def write_transcript_delta(delta)
  @mutex.synchronize do
    with_synchronized_output_locked do
      prepare_transcript_output_locked unless @restoring_transcript
      write_transcript_text_locked(delta.to_s)
      restore_composer_cursor_locked unless @restoring_transcript
    end
    flush_output_locked unless @restoring_transcript
  end
end

#yes?(message, default: false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kward/prompt_interface.rb', line 626

def yes?(message, default: false)
  answer = ask("#{message} #{default ? "[Y/n]" : "[y/N]"}")
  return default if answer.nil?

  answer = answer.strip.downcase
  return default if answer.empty?

  answer.start_with?("y")
end