/* * 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__ */ SIMPAN PERUBAHAN