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https://gitlab.gnome.org/GNOME/glib.git
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18a33f72db
If we have an input parameter (or return value) we need to use (nullable). However, if it is an (inout) or (out) parameter, (optional) is sufficient. It looks like (nullable) could be used for everything according to the Annotation documentation, but (optional) is more specific.
785 lines
22 KiB
C
785 lines
22 KiB
C
/*
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* Copyright © 2013 Lars Uebernickel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Lars Uebernickel <lars@uebernic.de>
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*/
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#include "config.h"
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#include "gnotification-private.h"
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#include "gdbusutils.h"
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#include "gicon.h"
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#include "gaction.h"
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#include "gioenumtypes.h"
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/**
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* SECTION:gnotification
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* @short_description: User Notifications (pop up messages)
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* @include: gio/gio.h
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*
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* #GNotification is a mechanism for creating a notification to be shown
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* to the user -- typically as a pop-up notification presented by the
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* desktop environment shell.
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*
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* The key difference between #GNotification and other similar APIs is
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* that, if supported by the desktop environment, notifications sent
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* with #GNotification will persist after the application has exited,
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* and even across system reboots.
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*
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* Since the user may click on a notification while the application is
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* not running, applications using #GNotification should be able to be
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* started as a D-Bus service, using #GApplication.
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*
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* User interaction with a notification (either the default action, or
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* buttons) must be associated with actions on the application (ie:
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* "app." actions). It is not possible to route user interaction
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* through the notification itself, because the object will not exist if
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* the application is autostarted as a result of a notification being
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* clicked.
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*
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* A notification can be sent with g_application_send_notification().
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*
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* Since: 2.40
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**/
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/**
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* GNotification:
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*
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* This structure type is private and should only be accessed using the
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* public APIs.
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*
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* Since: 2.40
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**/
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typedef GObjectClass GNotificationClass;
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struct _GNotification
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{
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GObject parent;
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gchar *title;
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gchar *body;
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GIcon *icon;
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GNotificationPriority priority;
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GPtrArray *buttons;
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gchar *default_action;
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GVariant *default_action_target;
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};
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typedef struct
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{
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gchar *label;
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gchar *action_name;
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GVariant *target;
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} Button;
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G_DEFINE_TYPE (GNotification, g_notification, G_TYPE_OBJECT);
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static void
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button_free (gpointer data)
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{
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Button *button = data;
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g_free (button->label);
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g_free (button->action_name);
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if (button->target)
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g_variant_unref (button->target);
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g_slice_free (Button, button);
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}
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static void
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g_notification_dispose (GObject *object)
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{
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GNotification *notification = G_NOTIFICATION (object);
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g_clear_object (¬ification->icon);
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G_OBJECT_CLASS (g_notification_parent_class)->dispose (object);
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}
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static void
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g_notification_finalize (GObject *object)
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{
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GNotification *notification = G_NOTIFICATION (object);
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g_free (notification->title);
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g_free (notification->body);
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g_free (notification->default_action);
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if (notification->default_action_target)
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g_variant_unref (notification->default_action_target);
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g_ptr_array_free (notification->buttons, TRUE);
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G_OBJECT_CLASS (g_notification_parent_class)->finalize (object);
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}
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static void
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g_notification_class_init (GNotificationClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = g_notification_dispose;
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object_class->finalize = g_notification_finalize;
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}
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static void
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g_notification_init (GNotification *notification)
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{
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notification->buttons = g_ptr_array_new_full (2, button_free);
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}
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/**
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* g_notification_new:
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* @title: the title of the notification
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*
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* Creates a new #GNotification with @title as its title.
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*
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* After populating @notification with more details, it can be sent to
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* the desktop shell with g_application_send_notification(). Changing
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* any properties after this call will not have any effect until
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* resending @notification.
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*
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* Returns: a new #GNotification instance
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*
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* Since: 2.40
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*/
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GNotification *
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g_notification_new (const gchar *title)
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{
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GNotification *notification;
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g_return_val_if_fail (title != NULL, NULL);
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notification = g_object_new (G_TYPE_NOTIFICATION, NULL);
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notification->title = g_strdup (title);
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return notification;
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}
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/*< private >
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* g_notification_get_title:
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* @notification: a #GNotification
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*
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* Gets the title of @notification.
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*
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* Returns: the title of @notification
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*
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* Since: 2.40
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*/
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const gchar *
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g_notification_get_title (GNotification *notification)
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{
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g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
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return notification->title;
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}
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/**
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* g_notification_set_title:
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* @notification: a #GNotification
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* @title: the new title for @notification
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*
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* Sets the title of @notification to @title.
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*
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* Since: 2.40
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*/
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void
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g_notification_set_title (GNotification *notification,
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const gchar *title)
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{
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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g_return_if_fail (title != NULL);
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g_free (notification->title);
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notification->title = g_strdup (title);
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}
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/*< private >
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* g_notification_get_body:
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* @notification: a #GNotification
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*
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* Gets the current body of @notification.
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*
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* Returns: (nullable): the body of @notification
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*
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* Since: 2.40
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*/
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const gchar *
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g_notification_get_body (GNotification *notification)
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{
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g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
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return notification->body;
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}
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/**
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* g_notification_set_body:
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* @notification: a #GNotification
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* @body: (nullable): the new body for @notification, or %NULL
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*
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* Sets the body of @notification to @body.
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*
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* Since: 2.40
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*/
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void
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g_notification_set_body (GNotification *notification,
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const gchar *body)
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{
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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g_return_if_fail (body != NULL);
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g_free (notification->body);
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notification->body = g_strdup (body);
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}
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/*< private >
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* g_notification_get_icon:
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* @notification: a #GNotification
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*
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* Gets the icon currently set on @notification.
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*
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* Returns: (transfer none): the icon associated with @notification
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*
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* Since: 2.40
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*/
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GIcon *
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g_notification_get_icon (GNotification *notification)
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{
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g_return_val_if_fail (G_IS_NOTIFICATION (notification), NULL);
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return notification->icon;
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}
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/**
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* g_notification_set_icon:
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* @notification: a #GNotification
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* @icon: the icon to be shown in @notification, as a #GIcon
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*
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* Sets the icon of @notification to @icon.
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*
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* Since: 2.40
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*/
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void
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g_notification_set_icon (GNotification *notification,
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GIcon *icon)
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{
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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if (notification->icon)
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g_object_unref (notification->icon);
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notification->icon = g_object_ref (icon);
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}
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/*< private >
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* g_notification_get_priority:
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* @notification: a #GNotification
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*
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* Returns the priority of @notification
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*
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* Since: 2.42
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*/
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GNotificationPriority
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g_notification_get_priority (GNotification *notification)
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{
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g_return_val_if_fail (G_IS_NOTIFICATION (notification), G_NOTIFICATION_PRIORITY_NORMAL);
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return notification->priority;
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}
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/**
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* g_notification_set_urgent:
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* @notification: a #GNotification
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* @urgent: %TRUE if @notification is urgent
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*
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* Deprecated in favor of g_notification_set_priority().
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*
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* Since: 2.40
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*/
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void
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g_notification_set_urgent (GNotification *notification,
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gboolean urgent)
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{
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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g_notification_set_priority (notification, G_NOTIFICATION_PRIORITY_URGENT);
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}
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/**
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* g_notification_set_priority:
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* @notification: a #GNotification
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* @priority: a #GNotificationPriority
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*
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* Sets the priority of @notification to @priority. See
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* #GNotificationPriority for possible values.
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*/
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void
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g_notification_set_priority (GNotification *notification,
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GNotificationPriority priority)
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{
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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notification->priority = priority;
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}
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/**
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* g_notification_add_button:
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* @notification: a #GNotification
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* @label: label of the button
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* @detailed_action: a detailed action name
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*
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* Adds a button to @notification that activates the action in
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* @detailed_action when clicked. That action must be an
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* application-wide action (starting with "app."). If @detailed_action
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* contains a target, the action will be activated with that target as
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* its parameter.
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*
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* See g_action_parse_detailed_name() for a description of the format
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* for @detailed_action.
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*
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* Since: 2.40
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*/
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void
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g_notification_add_button (GNotification *notification,
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const gchar *label,
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const gchar *detailed_action)
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{
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gchar *action;
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GVariant *target;
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GError *error = NULL;
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g_return_if_fail (detailed_action != NULL);
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if (!g_action_parse_detailed_name (detailed_action, &action, &target, &error))
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{
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g_warning ("%s: %s", G_STRFUNC, error->message);
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g_error_free (error);
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return;
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}
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g_notification_add_button_with_target_value (notification, label, action, target);
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g_free (action);
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if (target)
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g_variant_unref (target);
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}
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/**
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* g_notification_add_button_with_target: (skip)
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* @notification: a #GNotification
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* @label: label of the button
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* @action: an action name
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* @target_format: (nullable): a #GVariant format string, or %NULL
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* @...: positional parameters, as determined by @target_format
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*
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* Adds a button to @notification that activates @action when clicked.
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* @action must be an application-wide action (it must start with "app.").
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*
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* If @target_format is given, it is used to collect remaining
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* positional parameters into a #GVariant instance, similar to
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* g_variant_new(). @action will be activated with that #GVariant as its
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* parameter.
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*
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* Since: 2.40
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*/
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void
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g_notification_add_button_with_target (GNotification *notification,
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const gchar *label,
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const gchar *action,
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const gchar *target_format,
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...)
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{
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va_list args;
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GVariant *target = NULL;
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if (target_format)
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{
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va_start (args, target_format);
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target = g_variant_new_va (target_format, NULL, &args);
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va_end (args);
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}
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g_notification_add_button_with_target_value (notification, label, action, target);
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}
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/**
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* g_notification_add_button_with_target_value: (rename-to g_notification_add_button_with_target)
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* @notification: a #GNotification
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* @label: label of the button
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* @action: an action name
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* @target: (nullable): a #GVariant to use as @action's parameter, or %NULL
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*
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* Adds a button to @notification that activates @action when clicked.
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* @action must be an application-wide action (it must start with "app.").
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*
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* If @target is non-%NULL, @action will be activated with @target as
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* its parameter.
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*
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* Since: 2.40
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*/
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void
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g_notification_add_button_with_target_value (GNotification *notification,
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const gchar *label,
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const gchar *action,
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GVariant *target)
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{
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Button *button;
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g_return_if_fail (G_IS_NOTIFICATION (notification));
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g_return_if_fail (label != NULL);
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g_return_if_fail (action != NULL && g_action_name_is_valid (action));
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if (!g_str_has_prefix (action, "app."))
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{
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g_warning ("%s: action '%s' does not start with 'app.'."
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"This is unlikely to work properly.", G_STRFUNC, action);
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}
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button = g_slice_new0 (Button);
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button->label = g_strdup (label);
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button->action_name = g_strdup (action);
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if (target)
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button->target = g_variant_ref_sink (target);
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g_ptr_array_add (notification->buttons, button);
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}
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/*< private >
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* g_notification_get_n_buttons:
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* @notification: a #GNotification
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*
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* Returns: the amount of buttons added to @notification.
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*/
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guint
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g_notification_get_n_buttons (GNotification *notification)
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{
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return notification->buttons->len;
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}
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/*< private >
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* g_notification_get_button:
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* @notification: a #GNotification
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* @index: index of the button
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* @label: (): return location for the button's label
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* @action: (): return location for the button's associated action
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* @target: (): return location for the target @action should be
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* activated with
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*
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* Returns a description of a button that was added to @notification
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* with g_notification_add_button().
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*
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* @index must be smaller than the value returned by
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* g_notification_get_n_buttons().
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*/
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void
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g_notification_get_button (GNotification *notification,
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gint index,
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gchar **label,
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gchar **action,
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GVariant **target)
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{
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Button *button;
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button = g_ptr_array_index (notification->buttons, index);
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if (label)
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*label = g_strdup (button->label);
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if (action)
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*action = g_strdup (button->action_name);
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if (target)
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*target = button->target ? g_variant_ref (button->target) : NULL;
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}
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/*< private >
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* g_notification_get_button_with_action:
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* @notification: a #GNotification
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* @action: an action name
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*
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* Returns the index of the button in @notification that is associated
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* with @action, or -1 if no such button exists.
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*/
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gint
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g_notification_get_button_with_action (GNotification *notification,
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const gchar *action)
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{
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guint i;
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for (i = 0; i < notification->buttons->len; i++)
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{
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Button *button;
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button = g_ptr_array_index (notification->buttons, i);
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if (g_str_equal (action, button->action_name))
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return i;
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}
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return -1;
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}
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/*< private >
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* g_notification_get_default_action:
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* @notification: a #GNotification
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* @action: (nullable): return location for the default action
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* @target: (nullable): return location for the target of the default action
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*
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* Gets the action and target for the default action of @notification.
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*
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* Returns: %TRUE if @notification has a default action
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*/
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gboolean
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g_notification_get_default_action (GNotification *notification,
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gchar **action,
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GVariant **target)
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{
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if (notification->default_action == NULL)
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return FALSE;
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if (action)
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*action = g_strdup (notification->default_action);
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if (target)
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{
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if (notification->default_action_target)
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*target = g_variant_ref (notification->default_action_target);
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else
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*target = NULL;
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}
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return TRUE;
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|
}
|
|
|
|
/**
|
|
* 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 (¬ification->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);
|
|
}
|