Class: LivereloadRails::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/livereload_rails/client.rb

Constant Summary collapse

FSM = 
{
  initial: {},
  opened: { "hello" => :on_hello },
  idle:   { "info" => nil },
  closed: {},
}

Instance Method Summary collapse

Constructor Details

#initialize(ws) ⇒ Client

Returns a new instance of Client.



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# File 'lib/livereload_rails/client.rb', line 10

def initialize(ws)
  @state = :initial

  @connection = ws
  @connection.on(:open) { @state = :opened }
  @connection.on(:close) { close }
  @connection.on(:message) do |frame|
    data = JSON.parse(frame.data)
    command = data["command"]

    if FSM[@state].has_key?(command)
      if handler = FSM[@state][command]
        public_send(handler, data)
      end
    else
      raise "Unexpected #{data["command"].inspect} in #{@state}."
    end
  end
end

Instance Method Details

#alert(message) ⇒ Object 



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# File 'lib/livereload_rails/client.rb', line 46

def alert(message)
  send_data(command: "alert", message: message)
end

#close(reason = nil) ⇒ Object 



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# File 'lib/livereload_rails/client.rb', line 50

def close(reason = nil)
  if @state != :closed
    @state = :closed
    alert(reason) if reason
    @connection.close
    true
  else
    false
  end
end

#on_hello(frame) ⇒ Object 



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# File 'lib/livereload_rails/client.rb', line 30

def on_hello(frame)
  send_data({
    command: "hello",
    protocols: [
      "http://livereload.com/protocols/official-7"
    ],
    serverName: "Elabs' LivereloadRails",
  })

  @state = :idle
end

#reload(path, live: true) ⇒ Object 



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# File 'lib/livereload_rails/client.rb', line 42

def reload(path, live: true)
  send_data(command: "reload", path: path, liveCSS: live)
end