Class: Glimmer::DSL::SWT::ListSelectionDataBindingExpression
- Inherits:
-
Expression
- Object
- Expression
- Glimmer::DSL::SWT::ListSelectionDataBindingExpression
show all
- Defined in:
- lib/glimmer/dsl/swt/list_selection_data_binding_expression.rb
Instance Method Summary
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Methods inherited from Expression
#add_content, dsl, #textual?, #widget?
Instance Method Details
#can_interpret?(parent, keyword, *args, &block) ⇒ Boolean
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# File 'lib/glimmer/dsl/swt/list_selection_data_binding_expression.rb', line 12
def can_interpret?(parent, keyword, *args, &block)
keyword == 'selection' and
block.nil? and
widget?(parent) and
parent.swt_widget.is_a?(List) and
args.size == 1 and
args[0].is_a?(DataBinding::ModelBinding) and
args[0].evaluate_options_property.is_a?(Array)
end
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#interpret(parent, keyword, *args, &block) ⇒ Object
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# File 'lib/glimmer/dsl/swt/list_selection_data_binding_expression.rb', line 22
def interpret(parent, keyword, *args, &block)
model_binding = args[0]
widget_binding = DataBinding::WidgetBinding.new(parent, 'items')
widget_binding.call(model_binding.evaluate_options_property)
model = model_binding.base_model
widget_binding.observe(model, model_binding.options_property_name)
property_type = :string
property_type = :array if parent.has_style?(:multi)
list_selection_binding = DataBinding::ListSelectionBinding.new(parent, property_type)
list_selection_binding.call(model_binding.evaluate_property)
list_selection_binding.observe(model, model_binding.property_name_expression)
parent.on_widget_selected do
model_binding.call(list_selection_binding.evaluate_property)
end
end
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