/*
* Copyright © 2009, 2010 Codethink Limited
* Copyright © 2010 Red Hat, Inc.
*
* 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: Ryan Lortie <desrt@desrt.ca>
* Matthias Clasen <mclasen@redhat.com>
*/
#ifndef __G_SETTINGS_BACKEND_H__
#define __G_SETTINGS_BACKEND_H__
#if !defined (G_SETTINGS_ENABLE_BACKEND) && !defined (GIO_COMPILATION)
#error "You must define G_SETTINGS_ENABLE_BACKEND before including <gio/gsettingsbackend.h>."
#endif
#define __GIO_GIO_H_INSIDE__
#include <gio/giotypes.h>
#undef __GIO_GIO_H_INSIDE__
G_BEGIN_DECLS
#define G_TYPE_SETTINGS_BACKEND (g_settings_backend_get_type ())
#define G_SETTINGS_BACKEND(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
G_TYPE_SETTINGS_BACKEND, GSettingsBackend))
#define G_SETTINGS_BACKEND_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), \
G_TYPE_SETTINGS_BACKEND, GSettingsBackendClass))
#define G_IS_SETTINGS_BACKEND(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
G_TYPE_SETTINGS_BACKEND))
#define G_IS_SETTINGS_BACKEND_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), \
G_TYPE_SETTINGS_BACKEND))
#define G_SETTINGS_BACKEND_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), \
G_TYPE_SETTINGS_BACKEND, GSettingsBackendClass))
/**
* G_SETTINGS_BACKEND_EXTENSION_POINT_NAME:
*
* Extension point for #GSettingsBackend functionality.
**/
#define G_SETTINGS_BACKEND_EXTENSION_POINT_NAME "gsettings-backend"
/**
* GSettingsBackend:
*
* An implementation of a settings storage repository.
**/
typedef struct _GSettingsBackendPrivate GSettingsBackendPrivate;
typedef struct _GSettingsBackendClass GSettingsBackendClass;
/**
* GSettingsBackendClass:
* @read: virtual method to read a key's value
* @get_writable: virtual method to get if a key is writable
* @write: virtual method to change key's value
* @write_tree: virtual method to change a tree of keys
* @reset: virtual method to reset state
* @subscribe: virtual method to subscribe to key changes
* @unsubscribe: virtual method to unsubscribe to key changes
* @sync: virtual method to sync state
* @get_permission: virtual method to get permission of a key
* @read_user_value: virtual method to read user's key value
*
* Class structure for #GSettingsBackend.
*/
struct _GSettingsBackendClass
{
GObjectClass parent_class;
GVariant * (*read) (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type,
gboolean default_value);
gboolean (*get_writable) (GSettingsBackend *backend,
const gchar *key);
gboolean (*write) (GSettingsBackend *backend,
const gchar *key,
GVariant *value,
gpointer origin_tag);
gboolean (*write_tree) (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag);
void (*reset) (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag);
void (*subscribe) (GSettingsBackend *backend,
const gchar *name);
void (*unsubscribe) (GSettingsBackend *backend,
const gchar *name);
void (*sync) (GSettingsBackend *backend);
GPermission * (*get_permission) (GSettingsBackend *backend,
const gchar *path);
GVariant * (*read_user_value) (GSettingsBackend *backend,
const gchar *key,
const GVariantType *expected_type);
/*< private >*/
gpointer padding[23];
};
struct _GSettingsBackend
{
GObject parent_instance;
/*< private >*/
GSettingsBackendPrivate *priv;
};
GLIB_AVAILABLE_IN_ALL
GType g_settings_backend_get_type (void);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_changed (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_path_changed (GSettingsBackend *backend,
const gchar *path,
gpointer origin_tag);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_flatten_tree (GTree *tree,
gchar **path,
const gchar ***keys,
GVariant ***values);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_keys_changed (GSettingsBackend *backend,
const gchar *path,
gchar const * const *items,
gpointer origin_tag);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_path_writable_changed (GSettingsBackend *backend,
const gchar *path);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_writable_changed (GSettingsBackend *backend,
const gchar *key);
GLIB_AVAILABLE_IN_ALL
void g_settings_backend_changed_tree (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag);
GLIB_AVAILABLE_IN_ALL
GSettingsBackend * g_settings_backend_get_default (void);
GLIB_AVAILABLE_IN_ALL
GSettingsBackend * g_keyfile_settings_backend_new (const gchar *filename,
const gchar *root_path,
const gchar *root_group);
GLIB_AVAILABLE_IN_ALL
GSettingsBackend * g_null_settings_backend_new (void);
GLIB_AVAILABLE_IN_ALL
GSettingsBackend * g_memory_settings_backend_new (void);
G_END_DECLS
#endif /* __G_SETTINGS_BACKEND_H__ */