Module: RuGUI::SignalSupport::ClassMethods

Defined in:
lib/rugui/signal_support.rb

Instance Method Summary collapse

Instance Method Details

#on(widget_name, signal_name, receiver_method_name = nil, &block) ⇒ Object

Declares a signal handler for the given signal of the widget. The handler may be a method of this class or a block, which will be run with the instance of this class as context.

If the signal has arguments they are passed to the receiver method or the block.



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# File 'lib/rugui/signal_support.rb', line 10

def on(widget_name, signal_name, receiver_method_name = nil, &block)
  if receiver_method_name.nil? and not block_given?
    logger.warn "Either a block or a receiver_method_name must be given to on(#{widget_name}, #{signal_name}), ignoring call."
    return
  end

  signal_connection = RuGUI::SignalSupport::SignalConnection.new
  signal_connection.widget_name = widget_name
  signal_connection.signal_name = signal_name
  signal_connection.receiver_method_name = receiver_method_name
  signal_connection.receiver_block = block if block_given?
  signal_connection.receiver_class = self

  self.signal_connections << signal_connection
end