Module: WebSocket::Driver::EventEmitter

Included in:
WebSocket::Driver, Proxy
Defined in:
lib/websocket/driver/event_emitter.rb

Instance Method Summary collapse

Instance Method Details

#add_listener(event, callable = nil, &block) ⇒ Object 



9
10
11
12
13
 
# File 'lib/websocket/driver/event_emitter.rb', line 9

def add_listener(event, callable = nil, &block)
  listener = callable || block
  @listeners[event.to_s] << listener
  listener
end

#emit(event, *args) ⇒ Object 



37
38
39
40
41
 
# File 'lib/websocket/driver/event_emitter.rb', line 37

def emit(event, *args)
  @listeners[event.to_s].dup.each do |listener|
    listener.call(*args)
  end
end

#initialize ⇒ Object 



5
6
7
 
# File 'lib/websocket/driver/event_emitter.rb', line 5

def initialize
  @listeners = Hash.new { |h,k| h[k] = [] }
end

#listener_count(event) ⇒ Object 



43
44
45
46
 
# File 'lib/websocket/driver/event_emitter.rb', line 43

def listener_count(event)
  return 0 unless @listeners.has_key?(event.to_s)
  @listeners[event.to_s].size
end

#listeners(event) ⇒ Object 



48
49
50
 
# File 'lib/websocket/driver/event_emitter.rb', line 48

def listeners(event)
  @listeners[event.to_s]
end

#on(event, callable = nil, &block) ⇒ Object 



15
16
17
18
19
20
21
 
# File 'lib/websocket/driver/event_emitter.rb', line 15

def on(event, callable = nil, &block)
  if callable
    add_listener(event, callable)
  else
    add_listener(event, &block)
  end
end

#remove_all_listeners(event = nil) ⇒ Object 



29
30
31
32
33
34
35
 
# File 'lib/websocket/driver/event_emitter.rb', line 29

def remove_all_listeners(event = nil)
  if event
    @listeners.delete(event.to_s)
  else
    @listeners.clear
  end
end

#remove_listener(event, callable = nil, &block) ⇒ Object 



23
24
25
26
27
 
# File 'lib/websocket/driver/event_emitter.rb', line 23

def remove_listener(event, callable = nil, &block)
  listener = callable || block
  @listeners[event.to_s].delete(listener)
  listener
end