Class: ShnaiderCode::DataList
- Inherits:
-
Object
- Object
- ShnaiderCode::DataList
- Includes:
- DataListNotifier
- Defined in:
- lib/source/data_list.rb,
lib/source/data_list.rb
Direct Known Subclasses
Instance Attribute Summary collapse
-
#list ⇒ Object
Returns the value of attribute list.
Attributes included from DataListNotifier
Instance Method Summary collapse
- #add_observer(observer) ⇒ Object
- #get_data ⇒ Object
- #get_names ⇒ Object
- #get_selected_objects ⇒ Object
-
#initialize(list:) ⇒ DataList
constructor
A new instance of DataList.
- #notify ⇒ Object
- #remove_observer(observer) ⇒ Object
- #select(index) ⇒ Object
Constructor Details
#initialize(list:) ⇒ DataList
Returns a new instance of DataList.
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# File 'lib/source/data_list.rb', line 19 def initialize(list:) self.data_list_observers = [] self.list = list end |
Instance Attribute Details
#list ⇒ Object
Returns the value of attribute list.
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# File 'lib/source/data_list.rb', line 17 def list @list end |
Instance Method Details
#add_observer(observer) ⇒ Object
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# File 'lib/source/data_list.rb', line 51 def add_observer(observer) self.data_list_observers << observer end |
#get_data ⇒ Object
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# File 'lib/source/data_list.rb', line 37 def get_data raise "Метод не реализован" end |
#get_names ⇒ Object
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# File 'lib/source/data_list.rb', line 33 def get_names raise "Метод не реализован" end |
#get_selected_objects ⇒ Object
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# File 'lib/source/data_list.rb', line 28 def get_selected_objects (0...list.size) .filter { |x| selected_objects.include? x } end |
#notify ⇒ Object
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# File 'lib/source/data_list.rb', line 45 def notify data_list_observers.each { |observer| observer.notify(self.get_data) } end |
#remove_observer(observer) ⇒ Object
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# File 'lib/source/data_list.rb', line 55 def remove_observer(observer) self.data_list_observers.delete(observer) end |
#select(index) ⇒ Object
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# File 'lib/source/data_list.rb', line 24 def select(index) selected_objects << index end |