Class: TuiTui::EventStream

Inherits:
Object
  • Object
show all
Defined in:
lib/tui_tui/event_stream.rb

Overview

Converts terminal input readiness and resize notifications into runtime events.

Instance Method Summary collapse

Constructor Details

#initialize(input:, size:) ⇒ EventStream

Returns a new instance of EventStream.



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# File 'lib/tui_tui/event_stream.rb', line 9

def initialize(input:, size:)
  @input = input
  @size = size
  @key_reader = KeyReader.new
  @resized = false
  @queue = []
end

Instance Method Details

#next_event(tick: 0.1) ⇒ Object 



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# File 'lib/tui_tui/event_stream.rb', line 21

def next_event(tick: 0.1)
  return @queue.shift unless @queue.empty?

  if @resized
    @resized = false
    return ResizeEvent.new(size: @size.size)
  end

  ready = IO.select([@input], nil, nil, tick)
  return TickEvent.new unless ready

  raw = @key_reader.read_all(@input)
  return EofEvent.new if raw.nil?

  @queue.concat(raw.map { |event| event.is_a?(MouseEvent) ? event : KeyEvent.new(key: event) })
  @queue.shift
end

#resized! ⇒ Object 



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# File 'lib/tui_tui/event_stream.rb', line 17

def resized!
  @resized = true
end