class Fancyline::KeyAction

• Fancyline::KeyAction
• Reference
• Object

Overview

Mapping for key actions. Usually accessed through Fancyline#actions.

Defined in:

fancyline/key_action.cr

Constant Summary

DEFAULT = {Key::Control::CtrlC => ->(ctx : Context) do raise(Interrupt.new) end, Key::Control::Return => ->(ctx : Context) do ctx.accept! end, Key::Control::CtrlO => ->(ctx : Context) do ctx.accept! end, Key::Control::Backspace => ->(ctx : Context) do ctx.editor.remove_at_cursor(-1) end, Key::Control::Delete => ->(ctx : Context) do ctx.editor.remove_at_cursor(+1) end, Key::Control::Left => ->(ctx : Context) do ctx.editor.move_cursor(-1) end, Key::Control::Right => ->(ctx : Context) do ctx.editor.move_cursor(+1) end, Key::Control::Home => ->(ctx : Context) do ctx.editor.move_cursor(Int32::MIN) end, Key::Control::End => ->(ctx : Context) do ctx.editor.move_cursor(Int32::MAX) end, Key::Control::CtrlA => ->(ctx : Context) do ctx.editor.move_cursor(Int32::MIN) end, Key::Control::CtrlE => ->(ctx : Context) do ctx.editor.move_cursor(Int32::MAX) end, Key::Control::CtrlD => ->(ctx : Context) do if ctx.editor.empty? ctx.reject! end end, Key::Control::CtrlU => ->(ctx : Context) do ctx.editor.clear end, Key::Control::CtrlL => ->(ctx : Context) do ctx.tty.clear_screen end, Key::Control::Up => ->(ctx : Context) do ctx.start_widget(Widget::History.new) end, Key::Control::CtrlR => ->(ctx : Context) do ctx.start_widget(Widget::HistorySearch.new) end, Key::Control::Tab => ->(ctx : Context) do ctx.start_widget(Widget::Completion.new) end} of Key::Control => Handler

Default key bindings. Make sure to bind keys like Key::Control::Return or Key::Control::CtrlC. Else, the user may not have any way to exit a prompt.

Constructors

• .new(mapping : Hash(Fancyline::Key::Control, Fancyline::Context -> _) = DEFAULT.dup)

  Initializes the mapping to a clone of the DEFAULT one.

Instance Method Summary

• #[](*args, **options)

  Delegates to #mapping.

• #[](*args, **options, &)

  Delegates to #mapping.

• #[]=(*args, **options)

  Delegates to #mapping.

• #[]?(*args, **options)

  Delegates to #mapping.

• #[]?(*args, **options, &)

  Delegates to #mapping.

• #mapping : Hash(Key::Control, Handler)

  The key action mapping

• #mapping=(mapping : Hash(Key::Control, Handler))

  The key action mapping

• #set(key : Key::Control, &block : Handler)

  Sets a mapping for key to run the given block upon hitting it.

Constructor Detail

Instance Method Detail