class Gtk::ContextMenu

# File core/mui/gtk_contextmenu.rb, line 4
def initialize(*context)
  reset(context) end

# File core/mui/gtk_contextmenu.rb, line 31
def build!(widget, optional, menu = temporary_menu)
 @contextmenu.each{ |param|
    label, cond, proc, icon = param
    if cond.call(*[optional, widget][0, (cond.arity == -1 ? 1 : cond.arity)])
      if label
        label_text = defined?(label.call) ? label.call(*[optional, widget][0, (label.arity == -1 ? 1 : label.arity)]) : label
        if icon.is_a? Proc
          icon = icon.call(*[optional, widget][0, (icon.arity == -1 ? 1 : icon.arity)]) end
        if icon
          item = Gtk::ImageMenuItem.new(label_text)
          item.set_image(Gtk::WebIcon.new(icon, 16, 16))
        else
          item = Gtk::MenuItem.new(label_text)
        end
        if proc
          item.ssc('activate') { |w|
            proc.call(*[optional, widget][0...proc.arity])
            false } end
        menu.append(item)
      else
        menu.append(Gtk::MenuItem.new) end end }
  menu
end

# File core/mui/gtk_contextmenu.rb, line 55
def popup(widget, optional)
  menu = build!(widget, optional)

  if not menu.children.empty?
    menu.show_all.popup(nil, nil, 0, 0) end end

# File core/mui/gtk_contextmenu.rb, line 14
def registline
  if block_given?
    registmenu(nil, lambda{ |*a| yield *a }){ |a,b| }
  else
    registmenu(nil){ |a,b| } end end

# File core/mui/gtk_contextmenu.rb, line 11
def registmenu(label, condition=ret_nth(), &callback)
  @contextmenu = @contextmenu.push([label, condition, callback]) end

# File core/mui/gtk_contextmenu.rb, line 7
def reset(context)
  @contextmenu = context
end

# File core/mui/gtk_contextmenu.rb, line 21
def temporary_menu
  menu = Gtk::Menu.new
  menu.ssc(:selection_done) do
    menu.destroy
    false end
  menu.ssc(:cancel) do
    menu.destroy
    false end
  menu end