Class: Configural::Autosave

Inherits:
Object
  • Object
show all
Defined in:
lib/configural/autosave.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Autosave

Returns a new instance of Autosave.



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# File 'lib/configural/autosave.rb', line 50

def initialize
  @weakrefs = {}
  @enabled = true
  at_exit{ self.save_all }
end

Instance Attribute Details

#enabled ⇒ Object (readonly) Also known as: enabled?

Returns the value of attribute enabled.



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# File 'lib/configural/autosave.rb', line 75

def enabled
  @enabled
end

Class Method Details

.instance ⇒ Object 



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# File 'lib/configural/autosave.rb', line 35

def self.instance
  @instance ||= new()
end

.register(*args) ⇒ Object

Shorthand for Autosave.instance.register



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# File 'lib/configural/autosave.rb', line 40

def self.register(*args)
  instance.register(*args)
end

.unregister(*args) ⇒ Object

Shorthand for Autosave.instance.unregister



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# File 'lib/configural/autosave.rb', line 45

def self.unregister(*args)
  instance.unregister(*args)
end

Instance Method Details

#disable ⇒ Object 



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# File 'lib/configural/autosave.rb', line 83

def disable
  @enabled = false
  self
end

#enable ⇒ Object 



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# File 'lib/configural/autosave.rb', line 78

def enable
  @enabled = true
  self
end

#register(object, method = :save) ⇒ Object 



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# File 'lib/configural/autosave.rb', line 57

def register(object, method=:save)
  require 'weakref'
  weakref = WeakRef.new(object)
  @weakrefs[weakref] = method
  self
end

#save_all ⇒ Object 



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# File 'lib/configural/autosave.rb', line 89

def save_all
  return self unless @enabled
  @weakrefs.each do |weakref, method|
    if weakref.weakref_alive? and weakref.respond_to?(method)
      weakref.send(method)
    end
  end
  self
end

#unregister(object) ⇒ Object 



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# File 'lib/configural/autosave.rb', line 64

def unregister(object)
  @weakrefs.delete_if{ |k,v| k.__id__ == object.object_id }
  self
end

#unregister_all ⇒ Object 



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# File 'lib/configural/autosave.rb', line 69

def unregister_all
  @weakrefs = {}
  self
end