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Versions: 9
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Stored size: 1.07 KB
Contents
module DataListObserver
def notify(data)
raise 'not implemented'
end
end
module DataListNotifier
attr_accessor :data_list_observers
def notify
raise 'not implemented'
end
end
class DataList
attr_accessor :list
attr_private_accessor :selected_objects
def initialize(list:)
self.data_list_observers = []
self.list = list
end
def select(index)
selected_objects << index
end
def get_selected_objects
(0...list.size)
.filter { |x| selected_objects.include? x }
end
def get_names
raise "Метод не реализован"
end
def get_data
raise "Метод не реализован"
end
end
class DataList
include DataListNotifier
def notify
data_list_observers.each { |observer|
observer.notify(self.get_data)
}
end
def add_observer(observer)
self.data_list_observers << observer
end
def remove_observer(observer)
self.data_list_observers.delete(observer)
end
end
Version data entries
9 entries across 9 versions & 2 rubygems