Sha256: 254255b7ef19a63767e811953f143f3d0d585894423b3fa50629ccc15f8c663b
Contents?: true
Size: 791 Bytes
Versions: 44
Compression:
Stored size: 791 Bytes
Contents
module Redcar
class Document
class History < Array
attr_reader :max
def initialize(max)
@max = max
@subscribers = []
end
# Record an action in the History
def record(action)
self << action
notify_subscribers(action)
truncate
end
def subscribe(&block)
@subscribers << block
block
end
def unsubscribe(block)
@subscribers.delete(block)
end
private
def notify_subscribers(action)
@subscribers.each {|subscriber| subscriber.call(action)}
end
def truncate #:nodoc:
if length > @max + 100
self[0..(length - @max)] = nil
end
end
end
end
end
Version data entries
44 entries across 44 versions & 2 rubygems