class BBS::Petscii::CanvasMenu::Keys

The keys of the session; while waiting, the idle block every idle seconds.

Public Class Methods

Source

# File lib/bbs/petscii/canvas_menu.rb, line 95
def initialize(session, idle, on_idle)
  @session = session
  @idle    = idle && on_idle ? idle : nil
  @on_idle = on_idle
end

Reads the keys of session, calling on_idle every idle seconds without one (when both are given).

Public Instance Methods

key ()

Source

# File lib/bbs/petscii/canvas_menu.rb, line 103
def key
  loop do
    k = @session.readkey(timeout: @idle)
    raise IOError, 'the caller hung up' if k.nil?
    return k unless k == :idle && @idle

    out = @on_idle.call
    @session.write_raw(out) if out && !out.empty?
  end
end

The next key; the bytes on_idle returns go out raw meanwhile. Raises IOError when the caller hangs up.