Module: Shirka::Eventalk

Included in:
App, Controller, View
Defined in:
lib/shirka/eventalk.rb

Instance Method Summary collapse

Instance Method Details

#add_watcher(obj) ⇒ Object 



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# File 'lib/shirka/eventalk.rb', line 32

def add_watcher(obj)
  @watchers ||= []
  @watchers << obj
end

#fire(signal, msg = nil, receivers = nil) ⇒ Object 



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# File 'lib/shirka/eventalk.rb', line 5

def fire(signal, msg=nil, receivers=nil)
  if receivers.nil?
    receivers = watchers
  else
    receivers = Array(receivers)
  end
  
  receivers.each do |w|
    method = "on_#{signal}".to_sym
    if w.respond_to? method
      e = OpenStruct.new
      e.signal =  signal
      e.msg = msg
      e.sender = self
      w.send method, e
    end
  end
end

#forward(event, receivers = nil) ⇒ Object 



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# File 'lib/shirka/eventalk.rb', line 24

def forward(event, receivers=nil)
  fire event.signal, event.msg, receivers
end

#watch(obj) ⇒ Object 



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# File 'lib/shirka/eventalk.rb', line 37

def watch(obj)
  obj.add_watcher self
end

#watchers ⇒ Object 



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# File 'lib/shirka/eventalk.rb', line 28

def watchers
  @watchers ||= []
end