class Glimmer::DSL::Opal::CheckboxGroupSelectionDataBindingExpression
Public Instance Methods
can_interpret?(parent, keyword, *args, &block)
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# File lib/glimmer/dsl/opal/checkbox_group_selection_data_binding_expression.rb, line 31 def can_interpret?(parent, keyword, *args, &block) keyword == 'selection' and block.nil? and (parent.is_a?(Glimmer::SWT::Custom::CheckboxGroup) or (parent.is_a?(Glimmer::UI::CustomWidget) and parent.body_root.is_a?(Glimmer::SWT::Custom::CheckboxGroup)) ) and args.size == 1 and args[0].is_a?(DataBinding::ModelBinding) and args[0].evaluate_options_property.is_a?(Array) end
interpret(parent, keyword, *args, &block)
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# File lib/glimmer/dsl/opal/checkbox_group_selection_data_binding_expression.rb, line 40 def interpret(parent, keyword, *args, &block) model_binding = args[0] #TODO make this options observer dependent and all similar observers in widget specific data binding handlers # TODO consider delegating some of this work widget_binding = DataBinding::ElementBinding.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) widget_binding = DataBinding::ElementBinding.new(parent, 'selection') widget_binding.call(model_binding.evaluate_property) widget_binding.observe(model, model_binding.property_name_expression) parent.on_widget_selected do model_binding.call(widget_binding.evaluate_property) end end