Module: Fatty::PromptApi

Included in:
CallbackEnvironment
Defined in:
lib/fatty/api/prompt.rb

Instance Method Summary collapse

Instance Method Details

#prompt(prompt, initial: "", cancel_value: nil, history_key: nil, save_history: true) ⇒ Object

Create a popup to ask the user to enter an arbitrary string. These prompts will keep their own history based on the history_key, or if not history_key is given, the prompt text. If save_history is set to false, no history will be recorded, which can suppress writing sensitive values such as passwords to the history file.



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# File 'lib/fatty/api/prompt.rb', line 10

def prompt(prompt, initial: "", cancel_value: nil, history_key: nil, save_history: true)
  history_ctx = lambda do
    base =
      if @history_ctx.respond_to?(:call)
        @history_ctx.call
      elsif @history_ctx.is_a?(Hash)
        @history_ctx
      else
        {}
      end

    base.merge(prompt: (history_key || prompt).to_s)
  end

  popup = Fatty::PromptSession.new(
    title: "Prompt",
    message: prompt,
    prompt: "> ",
    initial: initial,
    kind: :terminal_prompt,
    save_history: save_history,
    history_ctx: history_ctx,
  )
  done = false
  result = nil

  acc_proc = ->(payload) do
    result = payload[:text]
    done = true
  end

  cancel_proc = -> do
    result = cancel_value
    done = true
  end

  owner = Terminal::PopupOwner.new(on_result: acc_proc, on_cancel: cancel_proc)

  begin
    terminal.apply_command(
      Fatty::Command.terminal(:push_modal, session: popup, owner: owner)
    )
    terminal.render_frame

    while !done && terminal.running?
      dirty = false
      command = terminal.event_source.next_event

      if command
        terminal.apply_command(command)
        dirty = true
      end

      begin
        dirty ||= !!terminal.tick_active_session
      rescue StandardError => e
        Fatty.error("PromptApi#prompt tick failed: #{e.class}: #{e.message}", tag: :terminal)
        dirty = true
      end
      terminal.render_frame if dirty
    end
  ensure
    terminal.render_frame
  end
  result
end