RecentChooser

#ifndef GTKMM_EXAMPLEWINDOW_H
#define GTKMM_EXAMPLEWINDOW_H

#include <gtkmm.h>

class ExampleWindow : public Gtk::Window
{
public:
  ExampleWindow();
  virtual ~ExampleWindow();

protected:
  //Signal handlers:
  void on_menu_file_recent_files_item();
  void on_menu_file_recent_files_dialog();
  void on_menu_file_quit();
  void on_menu_file_new();

  //Child widgets:
  Gtk::Box m_Box;

  Glib::RefPtr<Gtk::UIManager> m_refUIManager;
  Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup;
  Glib::RefPtr<Gtk::RecentAction> m_refRecentAction;

  Glib::RefPtr<Gtk::RecentManager> m_refRecentManager;
};

#endif //GTKMM_EXAMPLEWINDOW_H

#include "examplewindow.h"
#include <gtkmm/stock.h>
#include <iostream>

ExampleWindow::ExampleWindow()
: m_Box(Gtk::ORIENTATION_VERTICAL),
  m_refRecentManager(Gtk::RecentManager::get_default())
{
  set_title("recent files example");
  set_default_size(200, 200);

  //We can put a MenuBar at the top of the box and other stuff below it.
  add(m_Box);

  //Create actions for menus and toolbars:
  m_refActionGroup = Gtk::ActionGroup::create();

  //File menu:
  m_refActionGroup->add( Gtk::Action::create("FileMenu", "_File") );
  m_refActionGroup->add( Gtk::Action::create("FileNew", Gtk::Stock::NEW),
    sigc::mem_fun(*this, &ExampleWindow::on_menu_file_new));

  //A recent-files submenu:
  m_refRecentAction = Gtk::RecentAction::create("FileRecentFiles", "_Recent Files");
  m_refActionGroup->add(m_refRecentAction);
  //Connect to RecentChooser's item_activated signal
  //instead of Action's activate signal:
  m_refRecentAction->signal_item_activated().connect(
    sigc::mem_fun(*this, &ExampleWindow::on_menu_file_recent_files_item) );

  //A menu item to open the recent-files dialog:
  m_refActionGroup->add( Gtk::Action::create("FileRecentDialog", "Recent Files _Dialog"),
    sigc::mem_fun(*this, &ExampleWindow::on_menu_file_recent_files_dialog) );

  m_refActionGroup->add( Gtk::Action::create("FileQuit", Gtk::Stock::QUIT),
    sigc::mem_fun(*this, &ExampleWindow::on_menu_file_quit) );

  m_refUIManager = Gtk::UIManager::create();
  m_refUIManager->insert_action_group(m_refActionGroup);

  add_accel_group(m_refUIManager->get_accel_group());

  //Layout the actions in a menubar and toolbar:
  Glib::ustring ui_info =
        "<ui>"
        "  <menubar name='MenuBar'>"
        "    <menu action='FileMenu'>"
        "      <menuitem action='FileNew'/>"
        "      <menuitem action='FileRecentFiles'/>"
        "      <menuitem action='FileRecentDialog'/>"
        "      <separator/>"
        "      <menuitem action='FileQuit'/>"
        "    </menu>"
        "  </menubar>"
        "  <toolbar  name='ToolBar'>"
        "    <toolitem action='FileNew'/>"
        "    <toolitem action='FileQuit'/>"
        "  </toolbar>"
        "</ui>";

  try
  {
    m_refUIManager->add_ui_from_string(ui_info);
  }
  catch(const Glib::Error& ex)
  {
    std::cerr << "building menus failed: " <<  ex.what();
  }

  //Get the menubar and toolbar widgets, and add them to a container widget:
  Gtk::Widget* pMenubar = m_refUIManager->get_widget("/MenuBar");
  if(pMenubar)
    m_Box.pack_start(*pMenubar, Gtk::PACK_SHRINK);

  Gtk::Widget* pToolbar = m_refUIManager->get_widget("/ToolBar");
  if(pToolbar)
    m_Box.pack_start(*pToolbar, Gtk::PACK_SHRINK);

  show_all_children();
}

ExampleWindow::~ExampleWindow()
{
}

void ExampleWindow::on_menu_file_new()
{
  std::cout << " New File" << std::endl;
}

void ExampleWindow::on_menu_file_quit()
{
  hide(); //Closes the main window to stop the app->run().
}

void ExampleWindow::on_menu_file_recent_files_item()
{
  std::cout << "URI selected = " << m_refRecentAction->get_current_uri() << std::endl;
}

void ExampleWindow::on_menu_file_recent_files_dialog()
{
  Gtk::RecentChooserDialog dialog(*this, "Recent Files", m_refRecentManager);
  dialog.add_button("Select File", Gtk::RESPONSE_OK);
  dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);

  const int response = dialog.run();
  dialog.hide();
  if(response == Gtk::RESPONSE_OK)
  {
    std::cout << "URI selected = " << dialog.get_current_uri() << std::endl;
  }
}

#include "examplewindow.h"
#include <gtkmm/application.h>

int main(int argc, char *argv[])
{
  Glib::RefPtr<Gtk::Application> app = Gtk::Application::create(argc, argv, "org.gtkmm.example");

  ExampleWindow window;

  //Shows the window and returns when it is closed.
  return app->run(window);
}