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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+
+#ifndef __GDM_SETTINGS_BACKEND_H
+#define __GDM_SETTINGS_BACKEND_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GDM_TYPE_SETTINGS_BACKEND (gdm_settings_backend_get_type ())
+G_DECLARE_DERIVABLE_TYPE (GdmSettingsBackend, gdm_settings_backend, GDM, SETTINGS_BACKEND, GObject)
+
+struct _GdmSettingsBackendClass
+{
+ GObjectClass parent_class;
+
+ /* methods */
+ gboolean (*get_value) (GdmSettingsBackend *settings_backend,
+ const char *key,
+ char **value,
+ GError **error);
+ gboolean (*set_value) (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *value,
+ GError **error);
+
+ /* signals */
+ void (* value_changed) (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *old_value,
+ const char **new_value);
+};
+
+typedef enum
+{
+ GDM_SETTINGS_BACKEND_ERROR_GENERAL,
+ GDM_SETTINGS_BACKEND_ERROR_KEY_NOT_FOUND
+} GdmSettingsBackendError;
+
+#define GDM_SETTINGS_BACKEND_ERROR gdm_settings_backend_error_quark ()
+
+GQuark gdm_settings_backend_error_quark (void);
+
+gboolean gdm_settings_backend_get_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ char **value,
+ GError **error);
+gboolean gdm_settings_backend_set_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *value,
+ GError **error);
+
+void gdm_settings_backend_value_changed (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *old_value,
+ const char *new_value);
+
+G_END_DECLS
+
+#endif /* __GDM_SETTINGS_BACKEND_H */