Module: Glimmer::LibUI::DataBindable

Included in:
AttributedString, ControlProxy, Shape
Defined in:
lib/glimmer/libui/data_bindable.rb

Overview

Parent controls and shapes who have children and add child post_initialize_child

Instance Method Summary collapse

Instance Method Details

#data_bind(property, model_binding) ⇒ Object

Data-binds model to update view. Subclasses can override to do inverse data-binding by observing view control for property changes and updating model binding accordingly



28
29
30
31
32
33
34
35
36
 
# File 'lib/glimmer/libui/data_bindable.rb', line 28

def data_bind(property, model_binding)
  model_attribute_observer = Glimmer::DataBinding::Observer.proc do
    new_value = model_binding.evaluate_property
    send("#{property}=", new_value) unless send(property) == new_value
  end
  model_attribute_observer.observe(model_binding)
  model_attribute_observer.call # initial update
  model_attribute_observer
end