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-rw-r--r--common/gdm-settings-backend.c165
1 files changed, 165 insertions, 0 deletions
diff --git a/common/gdm-settings-backend.c b/common/gdm-settings-backend.c
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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.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <glib-object.h>
+
+#include "gdm-settings-backend.h"
+
+enum {
+ VALUE_CHANGED,
+ LAST_SIGNAL
+};
+
+static guint signals [LAST_SIGNAL] = { 0, };
+
+static void gdm_settings_backend_class_init (GdmSettingsBackendClass *klass);
+static void gdm_settings_backend_init (GdmSettingsBackend *settings_backend);
+static void gdm_settings_backend_finalize (GObject *object);
+
+G_DEFINE_ABSTRACT_TYPE (GdmSettingsBackend, gdm_settings_backend, G_TYPE_OBJECT)
+
+GQuark
+gdm_settings_backend_error_quark (void)
+{
+ static GQuark ret = 0;
+ if (ret == 0) {
+ ret = g_quark_from_static_string ("gdm_settings_backend_error");
+ }
+
+ return ret;
+}
+
+static gboolean
+gdm_settings_backend_real_get_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ char **value,
+ GError **error)
+{
+ g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE);
+
+ return FALSE;
+}
+
+static gboolean
+gdm_settings_backend_real_set_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *value,
+ GError **error)
+{
+ g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE);
+
+ return FALSE;
+}
+
+gboolean
+gdm_settings_backend_get_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ char **value,
+ GError **error)
+{
+ gboolean ret;
+
+ g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE);
+
+ g_object_ref (settings_backend);
+ ret = GDM_SETTINGS_BACKEND_GET_CLASS (settings_backend)->get_value (settings_backend, key, value, error);
+ g_object_unref (settings_backend);
+
+ return ret;
+}
+
+gboolean
+gdm_settings_backend_set_value (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *value,
+ GError **error)
+{
+ gboolean ret;
+
+ g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE);
+
+ g_object_ref (settings_backend);
+ ret = GDM_SETTINGS_BACKEND_GET_CLASS (settings_backend)->set_value (settings_backend, key, value, error);
+ g_object_unref (settings_backend);
+
+ return ret;
+}
+
+void
+gdm_settings_backend_value_changed (GdmSettingsBackend *settings_backend,
+ const char *key,
+ const char *old_value,
+ const char *new_value)
+{
+ g_return_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend));
+
+ g_signal_emit (settings_backend, signals[VALUE_CHANGED], 0, key, old_value, new_value);
+}
+
+static void
+gdm_settings_backend_class_init (GdmSettingsBackendClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gdm_settings_backend_finalize;
+
+ klass->get_value = gdm_settings_backend_real_get_value;
+ klass->set_value = gdm_settings_backend_real_set_value;
+
+ signals [VALUE_CHANGED] =
+ g_signal_new ("value-changed",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GdmSettingsBackendClass, value_changed),
+ NULL,
+ NULL,
+ g_cclosure_marshal_generic,
+ G_TYPE_NONE,
+ 3,
+ G_TYPE_STRING,
+ G_TYPE_STRING,
+ G_TYPE_STRING);
+}
+
+static void
+gdm_settings_backend_init (GdmSettingsBackend *settings_backend)
+{
+}
+
+static void
+gdm_settings_backend_finalize (GObject *object)
+{
+ g_return_if_fail (GDM_IS_SETTINGS_BACKEND (object));
+
+ G_OBJECT_CLASS (gdm_settings_backend_parent_class)->finalize (object);
+}