class Syskit::GUI::ModelViews::DataService

# File lib/syskit/gui/model_views/data_service.rb, line 4
def initialize(page)
    super(page)
    buttons = Array.new
    buttons.concat(self.class.common_graph_buttons('interface'))
    interface_options[:buttons] = buttons
end

# File lib/syskit/gui/model_views/data_service.rb, line 11
def list_services(task)
    services = super
    services.first.last.shift
    if services.first.last.empty?
        Array.new
    else
        services
    end
end

# File lib/syskit/gui/model_views/data_service.rb, line 21
def render(model, options = Hash.new)
    super

    providers = Array.new
    Syskit::TaskContext.each_submodel do |component_m|
        next if component_m.respond_to?(:proxied_data_services)
        if component_m.fullfills?(model)
            providers << [component_m.name, component_m]
        end
    end
    Syskit::Composition.each_submodel do |composition_m|
        next if composition_m.respond_to?(:proxied_data_services)
        next if composition_m.is_specialization?
        if composition_m.fullfills?(model)
            providers << [composition_m.name, composition_m]
        else
            composition_m.specializations.each_specialization do |spec|
                if spec.composition_model.fullfills?(model)
                    providers << [spec.to_s, composition_m.root_model]
                end
            end
        end
    end

    providers = providers.sort_by(&:first).
        map do |name, model|
            page.link_to(model, name)
        end
    page.render_list("Provided By", providers)
end

# File lib/syskit/gui/model_views/data_service.rb, line 52
def render_data_services(task, with_names = false)
    super
end