require 'glimmer'
require 'glimmer/dsl/static_expression'
require 'glimmer/dsl/parent_expression'
require 'glimmer/swt/menu_proxy'

module Glimmer
  module DSL
    class MenuExpression < StaticExpression
      include ParentExpression

      include_package 'org.eclipse.swt.widgets'

      def can_interpret?(parent, keyword, *args, &block)
        initial_condition = (keyword == 'menu')
        if initial_condition
          if widget?(parent)
            return true
          else
            raise Glimmer::Error, "menu may only be nested under a widget (like shell or another menu)!"
          end
        end
        false
      end

      def interpret(parent, keyword, *args, &block)
        SWT::MenuProxy.new(parent, args)
      end
    end
  end
end