/* Copyright (C) 2014 The giomm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

_CONFIGINCLUDE(giommconfig.h)

#include <glibmm/object.h>
#include <glibmm/ustring.h>
#include <glibmm/variant.h>

_DEFS(giomm,gio)
_PINCLUDE(glibmm/private/object_p.h)

namespace Gio
{
class GIOMM_API Icon;


/** User Notifications (pop up messages).
 *
 * Gio::Notification is a mechanism for creating a notification to be shown
 * to the user -- typically as a pop-up notification presented by the
 * desktop environment shell.
 *
 * The key difference between Notification and other similar APIs is
 * that, if supported by the desktop environment, notifications sent
 * with Notification will persist after the application has exited,
 * and even across system reboots.
 *
 * Since the user may click on a notification while the application is
 * not running, applications using Notification should be able to be
 * started as a D-Bus service, using Gio::Application.
 *
 * User interaction with a notification (either the default action, or
 * buttons) must be associated with actions on the application (ie:
 * "app." actions).  It is not possible to route user interaction
 * through the notification itself, because the object will not exist if
 * the application is autostarted as a result of a notification being
 * clicked.
 *
 * A notification can be sent with Gio::Application::send_notification().
 *
 * @newin{2,40}
 */
class GIOMM_API Notification : public Glib::Object
{
  _CLASS_GOBJECT(Notification, GNotification, G_NOTIFICATION, Glib::Object, GObject, , , GIOMM_API)

protected:
  // Can't use _WRAP_CTOR. GNotification has no properties, but it must have a title.
  explicit Notification(const Glib::ustring& title);
  _IGNORE(g_notification_new)

public:
  _WRAP_ENUM(Priority, GNotificationPriority, newin "2,44", decl_prefix GIOMM_API)

  _WRAP_METHOD_DOCS_ONLY(g_notification_new)
  _WRAP_CREATE(const Glib::ustring& title)

  _WRAP_METHOD(void set_title(const Glib::ustring& title), g_notification_set_title)
  _WRAP_METHOD(void set_body(const Glib::ustring& body), g_notification_set_body)
  _WRAP_METHOD(void set_icon(const Glib::RefPtr<Icon>& icon), g_notification_set_icon)
  _IGNORE(g_notification_set_urgent)
  _WRAP_METHOD(void set_priority(Priority priority = Priority::NORMAL), g_notification_set_priority, newin "2,44")

  _WRAP_METHOD(void add_button(const Glib::ustring& label, const Glib::ustring& detailed_action), g_notification_add_button)

  /** Adds a button that activates @a action when clicked.
   * @a action must be an application-wide action (it must start with "app.").
   * @a action will be activated with @a target as its parameter.
   *
   * @newin{2,40}
   *
   * @param label Label of the button.
   * @param action An action name.
   * @param target @a action's parameter.
   */
  template <typename T_Value>
  void add_button(const Glib::ustring& label, const Glib::ustring& action, const T_Value& target);

  _WRAP_METHOD(void add_button_variant(const Glib::ustring& label, const Glib::ustring& action, const Glib::VariantBase& target), g_notification_add_button_with_target_value)

  _WRAP_METHOD(void set_default_action(const Glib::ustring& detailed_action), g_notification_set_default_action)

  /** Sets the default action to @a action.
   * This action is activated when the notification is clicked on. It must be an
   * application-wide action (start with "app.").
   * @a action will be activated with @a target as its parameter.
   *
   * When no default action is set, the application that the notification
   * was sent on is activated.
   *
   * @newin{2,40}
   *
   * @param action An action name.
   * @param target @a action's parameter.
   */
  template <typename T_Value>
  void set_default_action(const Glib::ustring& action, const T_Value& target);

  _WRAP_METHOD(void set_default_action_variant(const Glib::ustring& action, const Glib::VariantBase& target), g_notification_set_default_action_and_target_value)

  // Ignore functions with variable-length parameter lists.
  _IGNORE(g_notification_add_button_with_target, g_notification_set_default_action_and_target)

  // There are no properties, signals, vfuncs.
};

template <typename T_Value>
void Notification::add_button(const Glib::ustring& label, const Glib::ustring& action, const T_Value& target)
{
  using type_glib_variant = Glib::Variant<T_Value>;

  add_button_variant(label, action, type_glib_variant::create(target));
}

template <typename T_Value>
void Notification::set_default_action(const Glib::ustring& action, const T_Value& target)
{
  using type_glib_variant = Glib::Variant<T_Value>;

  set_default_action_variant(action, type_glib_variant::create(target));
}

} // namespace Gio
