Contents

require File.dirname(__FILE__) + "/../command_handler"
require File.dirname(__FILE__) + "/models/r_widget"
require File.dirname(__FILE__) + "/models/list_selection_binding"

class ListSelectionDataBindingCommandHandler
  include CommandHandler
  include Glimmer

  include_package 'org.eclipse.swt.widgets'

  def can_handle?(parent, command_symbol, *args, &block)
    parent.is_a?(RWidget) and
    parent.widget.is_a?(List) and
    command_symbol.to_s == "selection" and
    args.size == 1 and
    args[0].is_a?(ModelBinding) and
    args[0].evaluate_options_property.is_a?(Array) and
    block == nil
  end

  def do_handle(parent, command_symbol, *args, &block)
    model_binding = args[0]
    widget_binding = WidgetBinding.new(parent, "items")
    widget_binding.update(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 handlers
    widget_binding.observe(model, model_binding.options_property_name)

    property_type = :string
    property_type = :array if parent.has_style?(:multi)
    list_selection_binding = ListSelectionBinding.new(parent, property_type)
    list_selection_binding.update(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)

    add_contents(parent) {
      on_widget_selected {
        model_binding.update(list_selection_binding.evaluate_property)
      }
    }
  end

end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
glimmer-0.3.5	lib/command_handlers/list_selection_data_binding_command_handler.rb
glimmer-0.3.4	lib/command_handlers/list_selection_data_binding_command_handler.rb
glimmer-0.3.3	lib/command_handlers/list_selection_data_binding_command_handler.rb
glimmer-0.3.2	lib/command_handlers/list_selection_data_binding_command_handler.rb