gio/gnotification.c - third_party/glib - Git at Google

 /*
  * Copyright © 2013 Lars Uebernickel
  *
  * 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/>.
  *
  * Authors: Lars Uebernickel <lars@uebernic.de>
  */

 #include "config.h"

 #include "gnotification-private.h"
 #include "gdbusutils.h"
 #include "gicon.h"
 #include "gaction.h"
 #include "gioenumtypes.h"

 /**
  * SECTION:gnotification
  * @short_description: User Notifications (pop up messages)
  * @include: gio/gio.h
  *
  * #GNotification 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 #GNotification and other similar APIs is
  * that, if supported by the desktop environment, notifications sent
  * with #GNotification 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 #GNotification should be able to be
  * started as a D-Bus service, using #GApplication.
  *
  * 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 g_application_send_notification().
  *
  * Since: 2.40
  **/

 /**
  * GNotification:
  *
  * This structure type is private and should only be accessed using the
  * public APIs.
  *
  * Since: 2.40
  **/

 typedef GObjectClass GNotificationClass;

 struct _GNotification
 {
   GObject parent;

   gchar *title;
   gchar *body;
   GIcon *icon;
   GNotificationPriority priority;
   GPtrArray *buttons;
   gchar *default_action;
   GVariant *default_action_target;
 };

 typedef struct
 {
   gchar *label;
   gchar *action_name;
   GVariant *target;
 } Button;

 G_DEFINE_TYPE (GNotification, g_notification, G_TYPE_OBJECT)

 static void
 button_free (gpointer data)
 {
   Button *button = data;

   g_free (button->label);
   g_free (button->action_name);
   if (button->target)
     g_variant_unref (button->target);

   g_slice_free (Button, button);
 }

 static void
 g_notification_dispose (GObject *object)
 {
   GNotification *notification = G_NOTIFICATION (object);

   g_clear_object (&notification->icon);

   G_OBJECT_CLASS (g_notification_parent_class)->dispose (object);
 }

 static void
 g_notification_finalize (GObject *object)
 {
   GNotification *notification = G_NOTIFICATION (object);

   g_free (notification->title);
   g_free (notification->body);
   g_free (notification->default_action);
   if (notification->default_action_target)
     g_variant_unref (notification->default_action_target);
   g_ptr_array_free (notification->buttons, TRUE);

   G_OBJECT_CLASS (g_notification_parent_class)->finalize (object);
 }

 static void
 g_notification_class_init (GNotificationClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);

   object_class->dispose = g_notification_dispose;
   object_class->finalize = g_notification_finalize;
 }

 static void
 g_notification_init (GNotification *notification)
 {
   notification->buttons = g_ptr_array_new_full (2, button_free);
 }

 /**
  * g_notification_new:
  * @title: the title of the notification
  *
  * Creates a new #GNotification with @title as its title.
  *
  * After populating @notification with more details, it can be sent to
  * the desktop shell with g_application_send_notification(). Changing
  * any properties after this call will not have any effect until
  * resending @notification.
  *
  * Returns: a new #GNotification instance
  *
  * Since: 2.40
  */
 GNotification *
 g_notification_new (const gchar *title)
 {
   GNotification *notification;

   g_return_val_if_fail (title != NULL, NULL);

   notification = g_object_new (G_TYPE_NOTIFICATION, NULL);
   notification->title = g_strdup (title);

   return notification;
 }

 /*< private >
  * g_notification_get_title:
  * @notification: a #GNotification
  *
  * Gets the title of @notification.
  *
  * Returns: the title of @notification
  *
  * Since: 2.40
  */
 const gchar *
 g_notification_get_title (GNotification *notification)
 {
   g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

   return notification->title;
 }

 /**
  * g_notification_set_title:
  * @notification: a #GNotification
  * @title: the new title for @notification
  *
  * Sets the title of @notification to @title.
  *
  * Since: 2.40
  */
 void
 g_notification_set_title (GNotification *notification,
                           const gchar   *title)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));
   g_return_if_fail (title != NULL);

   g_free (notification->title);

   notification->title = g_strdup (title);
 }

 /*< private >
  * g_notification_get_body:
  * @notification: a #GNotification
  *
  * Gets the current body of @notification.
  *
  * Returns: (nullable): the body of @notification
  *
  * Since: 2.40
  */
 const gchar *
 g_notification_get_body (GNotification *notification)
 {
   g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

   return notification->body;
 }

 /**
  * g_notification_set_body:
  * @notification: a #GNotification
  * @body: (nullable): the new body for @notification, or %NULL
  *
  * Sets the body of @notification to @body.
  *
  * Since: 2.40
  */
 void
 g_notification_set_body (GNotification *notification,
                          const gchar   *body)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));
   g_return_if_fail (body != NULL);

   g_free (notification->body);

   notification->body = g_strdup (body);
 }

 /*< private >
  * g_notification_get_icon:
  * @notification: a #GNotification
  *
  * Gets the icon currently set on @notification.
  *
  * Returns: (transfer none): the icon associated with @notification
  *
  * Since: 2.40
  */
 GIcon *
 g_notification_get_icon (GNotification *notification)
 {
   g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

   return notification->icon;
 }

 /**
  * g_notification_set_icon:
  * @notification: a #GNotification
  * @icon: the icon to be shown in @notification, as a #GIcon
  *
  * Sets the icon of @notification to @icon.
  *
  * Since: 2.40
  */
 void
 g_notification_set_icon (GNotification *notification,
                          GIcon         *icon)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));

   if (notification->icon)
     g_object_unref (notification->icon);

   notification->icon = g_object_ref (icon);
 }

 /*< private >
  * g_notification_get_priority:
  * @notification: a #GNotification
  *
  * Returns the priority of @notification
  *
  * Since: 2.42
  */
 GNotificationPriority
 g_notification_get_priority (GNotification *notification)
 {
   g_return_val_if_fail (G_IS_NOTIFICATION (notification), G_NOTIFICATION_PRIORITY_NORMAL);

   return notification->priority;
 }

 /**
  * g_notification_set_urgent:
  * @notification: a #GNotification
  * @urgent: %TRUE if @notification is urgent
  *
  * Deprecated in favor of g_notification_set_priority().
  *
  * Since: 2.40
  * Deprecated: 2.42: Since 2.42, this has been deprecated in favour of
  *    g_notification_set_priority().
  */
 void
 g_notification_set_urgent (GNotification *notification,
                            gboolean       urgent)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));

   notification->priority = urgent ?
       G_NOTIFICATION_PRIORITY_URGENT :
       G_NOTIFICATION_PRIORITY_NORMAL;
 }

 /**
  * g_notification_set_priority:
  * @notification: a #GNotification
  * @priority: a #GNotificationPriority
  *
  * Sets the priority of @notification to @priority. See
  * #GNotificationPriority for possible values.
  */
 void
 g_notification_set_priority (GNotification         *notification,
                              GNotificationPriority  priority)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));

   notification->priority = priority;
 }

 /**
  * g_notification_add_button:
  * @notification: a #GNotification
  * @label: label of the button
  * @detailed_action: a detailed action name
  *
  * Adds a button to @notification that activates the action in
  * @detailed_action when clicked. That action must be an
  * application-wide action (starting with "app."). If @detailed_action
  * contains a target, the action will be activated with that target as
  * its parameter.
  *
  * See g_action_parse_detailed_name() for a description of the format
  * for @detailed_action.
  *
  * Since: 2.40
  */
 void
 g_notification_add_button (GNotification *notification,
                            const gchar   *label,
                            const gchar   *detailed_action)
 {
   gchar *action;
   GVariant *target;
   GError *error = NULL;

   g_return_if_fail (detailed_action != NULL);

   if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
     {
       g_warning ("%s: %s", G_STRFUNC, error->message);
       g_error_free (error);
       return;
     }

   g_notification_add_button_with_target_value (notification, label, action, target);

   g_free (action);
   if (target)
     g_variant_unref (target);
 }

 /**
  * g_notification_add_button_with_target: (skip)
  * @notification: a #GNotification
  * @label: label of the button
  * @action: an action name
  * @target_format: (nullable): a #GVariant format string, or %NULL
  * @...: positional parameters, as determined by @target_format
  *
  * Adds a button to @notification that activates @action when clicked.
  * @action must be an application-wide action (it must start with "app.").
  *
  * If @target_format is given, it is used to collect remaining
  * positional parameters into a #GVariant instance, similar to
  * g_variant_new(). @action will be activated with that #GVariant as its
  * parameter.
  *
  * Since: 2.40
  */
 void
 g_notification_add_button_with_target (GNotification *notification,
                                        const gchar   *label,
                                        const gchar   *action,
                                        const gchar   *target_format,
                                        ...)
 {
   va_list args;
   GVariant *target = NULL;

   if (target_format)
     {
       va_start (args, target_format);
       target = g_variant_new_va (target_format, NULL, &args);
       va_end (args);
     }

   g_notification_add_button_with_target_value (notification, label, action, target);
 }

 /**
  * g_notification_add_button_with_target_value: (rename-to g_notification_add_button_with_target)
  * @notification: a #GNotification
  * @label: label of the button
  * @action: an action name
  * @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
  *
  * Adds a button to @notification that activates @action when clicked.
  * @action must be an application-wide action (it must start with "app.").
  *
  * If @target is non-%NULL, @action will be activated with @target as
  * its parameter.
  *
  * Since: 2.40
  */
 void
 g_notification_add_button_with_target_value (GNotification *notification,
                                              const gchar   *label,
                                              const gchar   *action,
                                              GVariant      *target)
 {
   Button *button;

   g_return_if_fail (G_IS_NOTIFICATION (notification));
   g_return_if_fail (label != NULL);
   g_return_if_fail (action != NULL && g_action_name_is_valid (action));

   if (!g_str_has_prefix (action, "app."))
     {
       g_warning ("%s: action '%s' does not start with 'app.'."
                  "This is unlikely to work properly.", G_STRFUNC, action);
     }

   button =  g_slice_new0 (Button);
   button->label = g_strdup (label);
   button->action_name = g_strdup (action);

   if (target)
     button->target = g_variant_ref_sink (target);

   g_ptr_array_add (notification->buttons, button);
 }

 /*< private >
  * g_notification_get_n_buttons:
  * @notification: a #GNotification
  *
  * Returns: the amount of buttons added to @notification.
  */
 guint
 g_notification_get_n_buttons (GNotification *notification)
 {
   return notification->buttons->len;
 }

 /*< private >
  * g_notification_get_button:
  * @notification: a #GNotification
  * @index: index of the button
  * @label: (): return location for the button's label
  * @action: (): return location for the button's associated action
  * @target: (): return location for the target @action should be
  * activated with
  *
  * Returns a description of a button that was added to @notification
  * with g_notification_add_button().
  *
  * @index must be smaller than the value returned by
  * g_notification_get_n_buttons().
  */
 void
 g_notification_get_button (GNotification  *notification,
                            gint            index,
                            gchar         **label,
                            gchar         **action,
                            GVariant      **target)
 {
   Button *button;

   button = g_ptr_array_index (notification->buttons, index);

   if (label)
     *label = g_strdup (button->label);

   if (action)
     *action = g_strdup (button->action_name);

   if (target)
     *target = button->target ? g_variant_ref (button->target) : NULL;
 }

 /*< private >
  * g_notification_get_button_with_action:
  * @notification: a #GNotification
  * @action: an action name
  *
  * Returns the index of the button in @notification that is associated
  * with @action, or -1 if no such button exists.
  */
 gint
 g_notification_get_button_with_action (GNotification *notification,
                                        const gchar   *action)
 {
   guint i;

   for (i = 0; i < notification->buttons->len; i++)
     {
       Button *button;

       button = g_ptr_array_index (notification->buttons, i);
       if (g_str_equal (action, button->action_name))
         return i;
     }

   return -1;
 }


 /*< private >
  * g_notification_get_default_action:
  * @notification: a #GNotification
  * @action: (nullable): return location for the default action
  * @target: (nullable): return location for the target of the default action
  *
  * Gets the action and target for the default action of @notification.
  *
  * Returns: %TRUE if @notification has a default action
  */
 gboolean
 g_notification_get_default_action (GNotification  *notification,
                                    gchar         **action,
                                    GVariant      **target)
 {
   if (notification->default_action == NULL)
     return FALSE;

   if (action)
     *action = g_strdup (notification->default_action);

   if (target)
     {
       if (notification->default_action_target)
         *target = g_variant_ref (notification->default_action_target);
       else
         *target = NULL;
     }

   return TRUE;
 }

 /**
  * g_notification_set_default_action:
  * @notification: a #GNotification
  * @detailed_action: a detailed action name
  *
  * Sets the default action of @notification to @detailed_action. This
  * action is activated when the notification is clicked on.
  *
  * The action in @detailed_action must be an application-wide action (it
  * must start with "app."). If @detailed_action contains a target, the
  * given action will be activated with that target as its parameter.
  * See g_action_parse_detailed_name() for a description of the format
  * for @detailed_action.
  *
  * When no default action is set, the application that the notification
  * was sent on is activated.
  *
  * Since: 2.40
  */
 void
 g_notification_set_default_action (GNotification *notification,
                                    const gchar   *detailed_action)
 {
   gchar *action;
   GVariant *target;
   GError *error = NULL;

   if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
     {
       g_warning ("%s: %s", G_STRFUNC, error->message);
       g_error_free (error);
       return;
     }

   g_notification_set_default_action_and_target_value (notification, action, target);

   g_free (action);
   if (target)
     g_variant_unref (target);
 }

 /**
  * g_notification_set_default_action_and_target: (skip)
  * @notification: a #GNotification
  * @action: an action name
  * @target_format: (nullable): a #GVariant format string, or %NULL
  * @...: positional parameters, as determined by @target_format
  *
  * Sets the default action of @notification to @action. This action is
  * activated when the notification is clicked on. It must be an
  * application-wide action (it must start with "app.").
  *
  * If @target_format is given, it is used to collect remaining
  * positional parameters into a #GVariant instance, similar to
  * g_variant_new(). @action will be activated with that #GVariant as its
  * parameter.
  *
  * When no default action is set, the application that the notification
  * was sent on is activated.
  *
  * Since: 2.40
  */
 void
 g_notification_set_default_action_and_target (GNotification *notification,
                                               const gchar   *action,
                                               const gchar   *target_format,
                                               ...)
 {
   va_list args;
   GVariant *target = NULL;

   if (target_format)
     {
       va_start (args, target_format);
       target = g_variant_new_va (target_format, NULL, &args);
       va_end (args);
     }

   g_notification_set_default_action_and_target_value (notification, action, target);
 }

 /**
  * g_notification_set_default_action_and_target_value: (rename-to g_notification_set_default_action_and_target)
  * @notification: a #GNotification
  * @action: an action name
  * @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
  *
  * Sets the default action of @notification to @action. This action is
  * activated when the notification is clicked on. It must be an
  * application-wide action (start with "app.").
  *
  * If @target is non-%NULL, @action will be activated with @target as
  * its parameter.
  *
  * When no default action is set, the application that the notification
  * was sent on is activated.
  *
  * Since: 2.40
  */
 void
 g_notification_set_default_action_and_target_value (GNotification *notification,
                                                     const gchar   *action,
                                                     GVariant      *target)
 {
   g_return_if_fail (G_IS_NOTIFICATION (notification));
   g_return_if_fail (action != NULL && g_action_name_is_valid (action));

   if (!g_str_has_prefix (action, "app."))
     {
       g_warning ("%s: action '%s' does not start with 'app.'."
                  "This is unlikely to work properly.", G_STRFUNC, action);
     }

   g_free (notification->default_action);
   g_clear_pointer (&notification->default_action_target, g_variant_unref);

   notification->default_action = g_strdup (action);

   if (target)
     notification->default_action_target = g_variant_ref_sink (target);
 }

 static GVariant *
 g_notification_serialize_button (Button *button)
 {
   GVariantBuilder builder;

   g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));

   g_variant_builder_add (&builder, "{sv}", "label", g_variant_new_string (button->label));
   g_variant_builder_add (&builder, "{sv}", "action", g_variant_new_string (button->action_name));

   if (button->target)
     g_variant_builder_add (&builder, "{sv}", "target", button->target);

   return g_variant_builder_end (&builder);
 }

 static GVariant *
 g_notification_get_priority_nick (GNotification *notification)
 {
   GEnumClass *enum_class;
   GEnumValue *value;
   GVariant *nick;

   enum_class = g_type_class_ref (G_TYPE_NOTIFICATION_PRIORITY);
   value = g_enum_get_value (enum_class, g_notification_get_priority (notification));
   g_assert (value != NULL);
   nick = g_variant_new_string (value->value_nick);
   g_type_class_unref (enum_class);

   return nick;
 }

 /*< private >
  * g_notification_serialize:
  *
  * Serializes @notification into an floating variant of type a{sv}.
  *
  * Returns: the serialized @notification as a floating variant.
  */
 GVariant *
 g_notification_serialize (GNotification *notification)
 {
   GVariantBuilder builder;

   g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));

   if (notification->title)
     g_variant_builder_add (&builder, "{sv}", "title", g_variant_new_string (notification->title));

   if (notification->body)
     g_variant_builder_add (&builder, "{sv}", "body", g_variant_new_string (notification->body));

   if (notification->icon)
     {
       GVariant *serialized_icon;

       if ((serialized_icon = g_icon_serialize (notification->icon)))
         {
           g_variant_builder_add (&builder, "{sv}", "icon", serialized_icon);
           g_variant_unref (serialized_icon);
         }
     }

   g_variant_builder_add (&builder, "{sv}", "priority", g_notification_get_priority_nick (notification));

   if (notification->default_action)
     {
       g_variant_builder_add (&builder, "{sv}", "default-action",
                                                g_variant_new_string (notification->default_action));

       if (notification->default_action_target)
         g_variant_builder_add (&builder, "{sv}", "default-action-target",
                                                   notification->default_action_target);
     }

   if (notification->buttons->len > 0)
     {
       GVariantBuilder actions_builder;
       guint i;

       g_variant_builder_init (&actions_builder, G_VARIANT_TYPE ("aa{sv}"));

       for (i = 0; i < notification->buttons->len; i++)
         {
           Button *button = g_ptr_array_index (notification->buttons, i);
           g_variant_builder_add (&actions_builder, "@a{sv}", g_notification_serialize_button (button));
         }

       g_variant_builder_add (&builder, "{sv}", "buttons", g_variant_builder_end (&actions_builder));
     }

   return g_variant_builder_end (&builder);
 }
	/*
	* Copyright © 2013 Lars Uebernickel
	*
	* 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/>.
	*
	* Authors: Lars Uebernickel <lars@uebernic.de>
	*/

	#include "config.h"

	#include "gnotification-private.h"
	#include "gdbusutils.h"
	#include "gicon.h"
	#include "gaction.h"
	#include "gioenumtypes.h"

	/**
	* SECTION:gnotification
	* @short_description: User Notifications (pop up messages)
	* @include: gio/gio.h
	*
	* #GNotification 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 #GNotification and other similar APIs is
	* that, if supported by the desktop environment, notifications sent
	* with #GNotification 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 #GNotification should be able to be
	* started as a D-Bus service, using #GApplication.
	*
	* 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 g_application_send_notification().
	*
	* Since: 2.40
	**/

	/**
	* GNotification:
	*
	* This structure type is private and should only be accessed using the
	* public APIs.
	*
	* Since: 2.40
	**/

	typedef GObjectClass GNotificationClass;

	struct _GNotification
	{
	GObject parent;

	gchar *title;
	gchar *body;
	GIcon *icon;
	GNotificationPriority priority;
	GPtrArray *buttons;
	gchar *default_action;
	GVariant *default_action_target;
	};

	typedef struct
	{
	gchar *label;
	gchar *action_name;
	GVariant *target;
	} Button;

	G_DEFINE_TYPE (GNotification, g_notification, G_TYPE_OBJECT)

	static void
	button_free (gpointer data)
	{
	Button *button = data;

	g_free (button->label);
	g_free (button->action_name);
	if (button->target)
	g_variant_unref (button->target);

	g_slice_free (Button, button);
	}

	static void
	g_notification_dispose (GObject *object)
	{
	GNotification *notification = G_NOTIFICATION (object);

	g_clear_object (&notification->icon);

	G_OBJECT_CLASS (g_notification_parent_class)->dispose (object);
	}

	static void
	g_notification_finalize (GObject *object)
	{
	GNotification *notification = G_NOTIFICATION (object);

	g_free (notification->title);
	g_free (notification->body);
	g_free (notification->default_action);
	if (notification->default_action_target)
	g_variant_unref (notification->default_action_target);
	g_ptr_array_free (notification->buttons, TRUE);

	G_OBJECT_CLASS (g_notification_parent_class)->finalize (object);
	}

	static void
	g_notification_class_init (GNotificationClass *klass)
	{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	object_class->dispose = g_notification_dispose;
	object_class->finalize = g_notification_finalize;
	}

	static void
	g_notification_init (GNotification *notification)
	{
	notification->buttons = g_ptr_array_new_full (2, button_free);
	}

	/**
	* g_notification_new:
	* @title: the title of the notification
	*
	* Creates a new #GNotification with @title as its title.
	*
	* After populating @notification with more details, it can be sent to
	* the desktop shell with g_application_send_notification(). Changing
	* any properties after this call will not have any effect until
	* resending @notification.
	*
	* Returns: a new #GNotification instance
	*
	* Since: 2.40
	*/
	GNotification *
	g_notification_new (const gchar *title)
	{
	GNotification *notification;

	g_return_val_if_fail (title != NULL, NULL);

	notification = g_object_new (G_TYPE_NOTIFICATION, NULL);
	notification->title = g_strdup (title);

	return notification;
	}

	/*< private >
	* g_notification_get_title:
	* @notification: a #GNotification
	*
	* Gets the title of @notification.
	*
	* Returns: the title of @notification
	*
	* Since: 2.40
	*/
	const gchar *
	g_notification_get_title (GNotification *notification)
	{
	g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

	return notification->title;
	}

	/**
	* g_notification_set_title:
	* @notification: a #GNotification
	* @title: the new title for @notification
	*
	* Sets the title of @notification to @title.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_title (GNotification *notification,
	const gchar *title)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));
	g_return_if_fail (title != NULL);

	g_free (notification->title);

	notification->title = g_strdup (title);
	}

	/*< private >
	* g_notification_get_body:
	* @notification: a #GNotification
	*
	* Gets the current body of @notification.
	*
	* Returns: (nullable): the body of @notification
	*
	* Since: 2.40
	*/
	const gchar *
	g_notification_get_body (GNotification *notification)
	{
	g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

	return notification->body;
	}

	/**
	* g_notification_set_body:
	* @notification: a #GNotification
	* @body: (nullable): the new body for @notification, or %NULL
	*
	* Sets the body of @notification to @body.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_body (GNotification *notification,
	const gchar *body)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));
	g_return_if_fail (body != NULL);

	g_free (notification->body);

	notification->body = g_strdup (body);
	}

	/*< private >
	* g_notification_get_icon:
	* @notification: a #GNotification
	*
	* Gets the icon currently set on @notification.
	*
	* Returns: (transfer none): the icon associated with @notification
	*
	* Since: 2.40
	*/
	GIcon *
	g_notification_get_icon (GNotification *notification)
	{
	g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);

	return notification->icon;
	}

	/**
	* g_notification_set_icon:
	* @notification: a #GNotification
	* @icon: the icon to be shown in @notification, as a #GIcon
	*
	* Sets the icon of @notification to @icon.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_icon (GNotification *notification,
	GIcon *icon)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));

	if (notification->icon)
	g_object_unref (notification->icon);

	notification->icon = g_object_ref (icon);
	}

	/*< private >
	* g_notification_get_priority:
	* @notification: a #GNotification
	*
	* Returns the priority of @notification
	*
	* Since: 2.42
	*/
	GNotificationPriority
	g_notification_get_priority (GNotification *notification)
	{
	g_return_val_if_fail (G_IS_NOTIFICATION (notification), G_NOTIFICATION_PRIORITY_NORMAL);

	return notification->priority;
	}

	/**
	* g_notification_set_urgent:
	* @notification: a #GNotification
	* @urgent: %TRUE if @notification is urgent
	*
	* Deprecated in favor of g_notification_set_priority().
	*
	* Since: 2.40
	* Deprecated: 2.42: Since 2.42, this has been deprecated in favour of
	* g_notification_set_priority().
	*/
	void
	g_notification_set_urgent (GNotification *notification,
	gboolean urgent)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));

	notification->priority = urgent ?
	G_NOTIFICATION_PRIORITY_URGENT :
	G_NOTIFICATION_PRIORITY_NORMAL;
	}

	/**
	* g_notification_set_priority:
	* @notification: a #GNotification
	* @priority: a #GNotificationPriority
	*
	* Sets the priority of @notification to @priority. See
	* #GNotificationPriority for possible values.
	*/
	void
	g_notification_set_priority (GNotification *notification,
	GNotificationPriority priority)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));

	notification->priority = priority;
	}

	/**
	* g_notification_add_button:
	* @notification: a #GNotification
	* @label: label of the button
	* @detailed_action: a detailed action name
	*
	* Adds a button to @notification that activates the action in
	* @detailed_action when clicked. That action must be an
	* application-wide action (starting with "app."). If @detailed_action
	* contains a target, the action will be activated with that target as
	* its parameter.
	*
	* See g_action_parse_detailed_name() for a description of the format
	* for @detailed_action.
	*
	* Since: 2.40
	*/
	void
	g_notification_add_button (GNotification *notification,
	const gchar *label,
	const gchar *detailed_action)
	{
	gchar *action;
	GVariant *target;
	GError *error = NULL;

	g_return_if_fail (detailed_action != NULL);

	if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
	{
	g_warning ("%s: %s", G_STRFUNC, error->message);
	g_error_free (error);
	return;
	}

	g_notification_add_button_with_target_value (notification, label, action, target);

	g_free (action);
	if (target)
	g_variant_unref (target);
	}

	/**
	* g_notification_add_button_with_target: (skip)
	* @notification: a #GNotification
	* @label: label of the button
	* @action: an action name
	* @target_format: (nullable): a #GVariant format string, or %NULL
	* @...: positional parameters, as determined by @target_format
	*
	* Adds a button to @notification that activates @action when clicked.
	* @action must be an application-wide action (it must start with "app.").
	*
	* If @target_format is given, it is used to collect remaining
	* positional parameters into a #GVariant instance, similar to
	* g_variant_new(). @action will be activated with that #GVariant as its
	* parameter.
	*
	* Since: 2.40
	*/
	void
	g_notification_add_button_with_target (GNotification *notification,
	const gchar *label,
	const gchar *action,
	const gchar *target_format,
	...)
	{
	va_list args;
	GVariant *target = NULL;

	if (target_format)
	{
	va_start (args, target_format);
	target = g_variant_new_va (target_format, NULL, &args);
	va_end (args);
	}

	g_notification_add_button_with_target_value (notification, label, action, target);
	}

	/**
	* g_notification_add_button_with_target_value: (rename-to g_notification_add_button_with_target)
	* @notification: a #GNotification
	* @label: label of the button
	* @action: an action name
	* @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
	*
	* Adds a button to @notification that activates @action when clicked.
	* @action must be an application-wide action (it must start with "app.").
	*
	* If @target is non-%NULL, @action will be activated with @target as
	* its parameter.
	*
	* Since: 2.40
	*/
	void
	g_notification_add_button_with_target_value (GNotification *notification,
	const gchar *label,
	const gchar *action,
	GVariant *target)
	{
	Button *button;

	g_return_if_fail (G_IS_NOTIFICATION (notification));
	g_return_if_fail (label != NULL);
	g_return_if_fail (action != NULL && g_action_name_is_valid (action));

	if (!g_str_has_prefix (action, "app."))
	{
	g_warning ("%s: action '%s' does not start with 'app.'."
	"This is unlikely to work properly.", G_STRFUNC, action);
	}

	button = g_slice_new0 (Button);
	button->label = g_strdup (label);
	button->action_name = g_strdup (action);

	if (target)
	button->target = g_variant_ref_sink (target);

	g_ptr_array_add (notification->buttons, button);
	}

	/*< private >
	* g_notification_get_n_buttons:
	* @notification: a #GNotification
	*
	* Returns: the amount of buttons added to @notification.
	*/
	guint
	g_notification_get_n_buttons (GNotification *notification)
	{
	return notification->buttons->len;
	}

	/*< private >
	* g_notification_get_button:
	* @notification: a #GNotification
	* @index: index of the button
	* @label: (): return location for the button's label
	* @action: (): return location for the button's associated action
	* @target: (): return location for the target @action should be
	* activated with
	*
	* Returns a description of a button that was added to @notification
	* with g_notification_add_button().
	*
	* @index must be smaller than the value returned by
	* g_notification_get_n_buttons().
	*/
	void
	g_notification_get_button (GNotification *notification,
	gint index,
	gchar **label,
	gchar **action,
	GVariant **target)
	{
	Button *button;

	button = g_ptr_array_index (notification->buttons, index);

	if (label)
	*label = g_strdup (button->label);

	if (action)
	*action = g_strdup (button->action_name);

	if (target)
	*target = button->target ? g_variant_ref (button->target) : NULL;
	}

	/*< private >
	* g_notification_get_button_with_action:
	* @notification: a #GNotification
	* @action: an action name
	*
	* Returns the index of the button in @notification that is associated
	* with @action, or -1 if no such button exists.
	*/
	gint
	g_notification_get_button_with_action (GNotification *notification,
	const gchar *action)
	{
	guint i;

	for (i = 0; i < notification->buttons->len; i++)
	{
	Button *button;

	button = g_ptr_array_index (notification->buttons, i);
	if (g_str_equal (action, button->action_name))
	return i;
	}

	return -1;
	}


	/*< private >
	* g_notification_get_default_action:
	* @notification: a #GNotification
	* @action: (nullable): return location for the default action
	* @target: (nullable): return location for the target of the default action
	*
	* Gets the action and target for the default action of @notification.
	*
	* Returns: %TRUE if @notification has a default action
	*/
	gboolean
	g_notification_get_default_action (GNotification *notification,
	gchar **action,
	GVariant **target)
	{
	if (notification->default_action == NULL)
	return FALSE;

	if (action)
	*action = g_strdup (notification->default_action);

	if (target)
	{
	if (notification->default_action_target)
	*target = g_variant_ref (notification->default_action_target);
	else
	*target = NULL;
	}

	return TRUE;
	}

	/**
	* g_notification_set_default_action:
	* @notification: a #GNotification
	* @detailed_action: a detailed action name
	*
	* Sets the default action of @notification to @detailed_action. This
	* action is activated when the notification is clicked on.
	*
	* The action in @detailed_action must be an application-wide action (it
	* must start with "app."). If @detailed_action contains a target, the
	* given action will be activated with that target as its parameter.
	* See g_action_parse_detailed_name() for a description of the format
	* for @detailed_action.
	*
	* When no default action is set, the application that the notification
	* was sent on is activated.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_default_action (GNotification *notification,
	const gchar *detailed_action)
	{
	gchar *action;
	GVariant *target;
	GError *error = NULL;

	if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
	{
	g_warning ("%s: %s", G_STRFUNC, error->message);
	g_error_free (error);
	return;
	}

	g_notification_set_default_action_and_target_value (notification, action, target);

	g_free (action);
	if (target)
	g_variant_unref (target);
	}

	/**
	* g_notification_set_default_action_and_target: (skip)
	* @notification: a #GNotification
	* @action: an action name
	* @target_format: (nullable): a #GVariant format string, or %NULL
	* @...: positional parameters, as determined by @target_format
	*
	* Sets the default action of @notification to @action. This action is
	* activated when the notification is clicked on. It must be an
	* application-wide action (it must start with "app.").
	*
	* If @target_format is given, it is used to collect remaining
	* positional parameters into a #GVariant instance, similar to
	* g_variant_new(). @action will be activated with that #GVariant as its
	* parameter.
	*
	* When no default action is set, the application that the notification
	* was sent on is activated.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_default_action_and_target (GNotification *notification,
	const gchar *action,
	const gchar *target_format,
	...)
	{
	va_list args;
	GVariant *target = NULL;

	if (target_format)
	{
	va_start (args, target_format);
	target = g_variant_new_va (target_format, NULL, &args);
	va_end (args);
	}

	g_notification_set_default_action_and_target_value (notification, action, target);
	}

	/**
	* g_notification_set_default_action_and_target_value: (rename-to g_notification_set_default_action_and_target)
	* @notification: a #GNotification
	* @action: an action name
	* @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
	*
	* Sets the default action of @notification to @action. This action is
	* activated when the notification is clicked on. It must be an
	* application-wide action (start with "app.").
	*
	* If @target is non-%NULL, @action will be activated with @target as
	* its parameter.
	*
	* When no default action is set, the application that the notification
	* was sent on is activated.
	*
	* Since: 2.40
	*/
	void
	g_notification_set_default_action_and_target_value (GNotification *notification,
	const gchar *action,
	GVariant *target)
	{
	g_return_if_fail (G_IS_NOTIFICATION (notification));
	g_return_if_fail (action != NULL && g_action_name_is_valid (action));

	if (!g_str_has_prefix (action, "app."))
	{
	g_warning ("%s: action '%s' does not start with 'app.'."
	"This is unlikely to work properly.", G_STRFUNC, action);
	}

	g_free (notification->default_action);
	g_clear_pointer (&notification->default_action_target, g_variant_unref);

	notification->default_action = g_strdup (action);

	if (target)
	notification->default_action_target = g_variant_ref_sink (target);
	}

	static GVariant *
	g_notification_serialize_button (Button *button)
	{
	GVariantBuilder builder;

	g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));

	g_variant_builder_add (&builder, "{sv}", "label", g_variant_new_string (button->label));
	g_variant_builder_add (&builder, "{sv}", "action", g_variant_new_string (button->action_name));

	if (button->target)
	g_variant_builder_add (&builder, "{sv}", "target", button->target);

	return g_variant_builder_end (&builder);
	}

	static GVariant *
	g_notification_get_priority_nick (GNotification *notification)
	{
	GEnumClass *enum_class;
	GEnumValue *value;
	GVariant *nick;

	enum_class = g_type_class_ref (G_TYPE_NOTIFICATION_PRIORITY);
	value = g_enum_get_value (enum_class, g_notification_get_priority (notification));
	g_assert (value != NULL);
	nick = g_variant_new_string (value->value_nick);
	g_type_class_unref (enum_class);

	return nick;
	}

	/*< private >
	* g_notification_serialize:
	*
	* Serializes @notification into an floating variant of type a{sv}.
	*
	* Returns: the serialized @notification as a floating variant.
	*/
	GVariant *
	g_notification_serialize (GNotification *notification)
	{
	GVariantBuilder builder;

	g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));

	if (notification->title)
	g_variant_builder_add (&builder, "{sv}", "title", g_variant_new_string (notification->title));

	if (notification->body)
	g_variant_builder_add (&builder, "{sv}", "body", g_variant_new_string (notification->body));

	if (notification->icon)
	{
	GVariant *serialized_icon;

	if ((serialized_icon = g_icon_serialize (notification->icon)))
	{
	g_variant_builder_add (&builder, "{sv}", "icon", serialized_icon);
	g_variant_unref (serialized_icon);
	}
	}

	g_variant_builder_add (&builder, "{sv}", "priority", g_notification_get_priority_nick (notification));

	if (notification->default_action)
	{
	g_variant_builder_add (&builder, "{sv}", "default-action",
	g_variant_new_string (notification->default_action));

	if (notification->default_action_target)
	g_variant_builder_add (&builder, "{sv}", "default-action-target",
	notification->default_action_target);
	}

	if (notification->buttons->len > 0)
	{
	GVariantBuilder actions_builder;
	guint i;

	g_variant_builder_init (&actions_builder, G_VARIANT_TYPE ("aa{sv}"));

	for (i = 0; i < notification->buttons->len; i++)
	{
	Button *button = g_ptr_array_index (notification->buttons, i);
	g_variant_builder_add (&actions_builder, "@a{sv}", g_notification_serialize_button (button));
	}

	g_variant_builder_add (&builder, "{sv}", "buttons", g_variant_builder_end (&actions_builder));
	}

	return g_variant_builder_end (&builder);
	}