Method: TkTimer#start

Defined in:
lib/tk/timer.rb

#start(*init_args, &b) ⇒ Object



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# File 'lib/tk/timer.rb', line 368

def start(*init_args, &b)
  return nil if @running

  Tk_CBTBL[@id] = self
  @do_loop = @loop_exec
  @current_pos = 0
  @return_value = nil
  @after_id = nil

  @init_sleep = 0
  @init_proc  = nil
  @init_args  = nil

  argc = init_args.size
  if argc > 0
    sleep = init_args.shift
    if sleep != 'idle' && sleep != :idle && !sleep.kind_of?(Integer)
      fail ArgumentError, "expect Integer or 'idle' for 1st argument"
    end
    @init_sleep = sleep
  end
  @init_proc = init_args.shift if argc > 1
  @init_args = init_args if argc > 2

  @init_proc = b if !@init_proc && b
  @init_proc = proc{|*args| } if @init_sleep > 0 && !@init_proc

  @current_sleep = @init_sleep
  @running = true
  if @init_proc
    # if not @init_proc.kind_of?(Proc)
    if !TkComm._callback_entry?(@init_proc)
      fail ArgumentError, "Argument '#{@init_proc}' need to be Proc"
    end
    @current_proc = @init_proc
    set_callback(@init_sleep, @init_args)
    @set_next = false if @in_callback
  else
    set_next_callback(@init_args)
  end

  self
end