Contents

require 'glimmer/dsl/expression'
require 'glimmer/data_binding/model_binding'
require 'glimmer/data_binding/widget_binding'

module Glimmer
  module DSL
    class ComboSelectionDataBindingExpression < Expression
      include_package 'org.eclipse.swt.widgets'

      def can_interpret?(parent, keyword, *args, &block)
        keyword == 'selection' and
          block.nil? and
          widget?(parent) and
          parent.swt_widget.is_a?(Combo) and
          args.size == 1 and
          args[0].is_a?(DataBinding::ModelBinding) and
          args[0].evaluate_options_property.is_a?(Array)
      end

      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::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)

        widget_binding = DataBinding::WidgetBinding.new(parent, 'text')
        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
    end
  end
end

Version data entries

11 entries across 11 versions & 1 rubygems

Version	Path
glimmer-0.5.11	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.10	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.9	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.8	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.7	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.6	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.5	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.4	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.3	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.2	lib/glimmer/dsl/combo_selection_data_binding_expression.rb
glimmer-0.5.0	lib/glimmer/dsl/combo_selection_data_binding_expression.rb