module SassListen::FSM::ClassMethods

Public Instance Methods

default_state(new_default = nil) click to toggle source

Obtain or set the default state Passing a state name sets the default state

# File lib/sass-listen/fsm.rb, line 14
def default_state(new_default = nil)
  if new_default
    @default_state = new_default.to_sym
  else
    defined?(@default_state) ? @default_state : DEFAULT_STATE
  end
end
state(*args, &block) click to toggle source

Declare an FSM state and optionally provide a callback block to fire Options:

  • to: a state or array of states this state can transition to

# File lib/sass-listen/fsm.rb, line 30
def state(*args, &block)
  if args.last.is_a? Hash
    # Stringify keys :/
    options = args.pop.each_with_object({}) { |(k, v), h| h[k.to_s] = v }
  else
    options = {}
  end

  args.each do |name|
    name = name.to_sym
    default_state name if options['default']
    states[name] = State.new(name, options['to'], &block)
  end
end
states() click to toggle source

Obtain the valid states for this FSM

# File lib/sass-listen/fsm.rb, line 23
def states
  @states ||= {}
end