class Glimmer::DSL::Tk::ListSelectionDataBindingExpression
Public Instance Methods
can_interpret?(parent, keyword, *args, &block)
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# File lib/glimmer/dsl/tk/list_selection_data_binding_expression.rb, line 31 def can_interpret?(parent, keyword, *args, &block) keyword == 'selection' and block.nil? and parent.is_a?(Glimmer::Tk::ListProxy) 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/tk/list_selection_data_binding_expression.rb, line 40 def interpret(parent, keyword, *args, &block) model_binding = args[0] widget_binding = DataBinding::Tk::WidgetBinding.new(parent, 'items') widget_binding.call(model_binding.evaluate_options_property) model = model_binding.base_model #TODO make this options observer dependent and all similar observers in widget specific data binding interpretrs widget_binding.observe(model, model_binding.options_property_name) list_selection_binding = DataBinding::Tk::ListSelectionBinding.new(parent) list_selection_binding.call(model_binding.evaluate_property) #TODO check if nested data binding works for list widget and other widgets that need custom data binding list_selection_binding.observe(model, model_binding.property_name_expression) parent.tk.bind('<TreeviewSelect>') do model_binding.call(list_selection_binding.evaluate_property) end end