Module: Faye::WebSocket::API

Extended by:
Forwardable
Includes:
EventTarget
Included in:
Faye::WebSocket, Client
Defined in:
lib/faye/websocket/api.rb,
lib/faye/websocket/api/event.rb,
lib/faye/websocket/api/event_target.rb

Defined Under Namespace

Modules: EventTarget Classes: CloseEvent, ErrorEvent, Event, MessageEvent, OpenEvent

Constant Summary collapse

CONNECTING =
0
OPEN =
1
CLOSING =
2
CLOSED =
3
CLOSE_TIMEOUT =
30
TYPES =
{
  'open'    => OpenEvent,
  'message' => MessageEvent,
  'close'   => CloseEvent,
  'error'   => ErrorEvent
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from EventTarget

#add_event_listener, #add_listener, #dispatch_event, #remove_event_listener

Instance Attribute Details

#buffered_amountObject (readonly)

Returns the value of attribute buffered_amount


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# File 'lib/faye/websocket/api.rb', line 20

def buffered_amount
  @buffered_amount
end

#ready_stateObject (readonly)

Returns the value of attribute ready_state


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# File 'lib/faye/websocket/api.rb', line 20

def ready_state
  @ready_state
end

#urlObject (readonly)

Returns the value of attribute url


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# File 'lib/faye/websocket/api.rb', line 20

def url
  @url
end

Instance Method Details

#close(code = nil, reason = nil) ⇒ Object


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# File 'lib/faye/websocket/api.rb', line 79

def close(code = nil, reason = nil)
  code   ||= 1000
  reason ||= ''

  unless code == 1000 or (code >= 3000 and code <= 4999)
    raise ArgumentError, "Failed to execute 'close' on WebSocket: " +
                         "The code must be either 1000, or between 3000 and 4999. " +
                         "#{ code } is neither."
  end

  if @ready_state < CLOSING
    @close_timer = EventMachine.add_timer(CLOSE_TIMEOUT) { begin_close('', 1006) }
  end

  @ready_state = CLOSING unless @ready_state == CLOSED

  @driver.close(reason, code)
end

#initialize(options = {}) ⇒ Object


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# File 'lib/faye/websocket/api.rb', line 22

def initialize(options = {})
  @ready_state = CONNECTING
  super()
  ::WebSocket::Driver.validate_options(options, [:headers, :extensions, :max_length, :ping, :proxy, :tls])

  @driver = yield

  if headers = options[:headers]
    headers.each { |name, value| @driver.set_header(name, value) }
  end

  [*options[:extensions]].each do |extension|
    @driver.add_extension(extension)
  end

  @ping            = options[:ping]
  @ping_id         = 0
  @buffered_amount = 0

  @close_params = @close_timer = @ping_timer = @proxy = @stream = nil
  @onopen = @onmessage = @onclose = @onerror = nil

  @driver.on(:open)    { |e| open }
  @driver.on(:message) { |e| receive_message(e.data) }
  @driver.on(:close)   { |e| begin_close(e.reason, e.code, :wait_for_write => true) }

  @driver.on(:error) do |error|
    emit_error(error.message)
  end

  if @ping
    @ping_timer = EventMachine.add_periodic_timer(@ping) do
      @ping_id += 1
      ping(@ping_id.to_s)
    end
  end
end

#ping(message = '', &callback) ⇒ Object


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# File 'lib/faye/websocket/api.rb', line 74

def ping(message = '', &callback)
  return false if @ready_state > OPEN
  @driver.ping(message, &callback)
end

#protocolObject


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# File 'lib/faye/websocket/api.rb', line 98

def protocol
  @driver.protocol || ''
end

#send(message) ⇒ Object


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# File 'lib/faye/websocket/api.rb', line 64

def send(message)
  return false if @ready_state > OPEN
  case message
    when Numeric then @driver.text(message.to_s)
    when String  then @driver.text(message)
    when Array   then @driver.binary(message)
    else false
  end
end

#write(data) ⇒ Object


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# File 'lib/faye/websocket/api.rb', line 60

def write(data)
  @stream.write(data)
end