1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
---|
2 | * |
---|
3 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
---|
4 | * |
---|
5 | * This program is free software; you can redistribute it and/or modify |
---|
6 | * it under the terms of the GNU General Public License as published by |
---|
7 | * the Free Software Foundation; either version 2 of the License, or |
---|
8 | * (at your option) any later version. |
---|
9 | * |
---|
10 | * This program is distributed in the hope that it will be useful, |
---|
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
13 | * GNU General Public License for more details. |
---|
14 | * |
---|
15 | * You should have received a copy of the GNU General Public License |
---|
16 | * along with this program; if not, write to the Free Software |
---|
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
---|
18 | * |
---|
19 | */ |
---|
20 | |
---|
21 | #include "config.h" |
---|
22 | |
---|
23 | #include <stdlib.h> |
---|
24 | #include <stdio.h> |
---|
25 | #include <fcntl.h> |
---|
26 | #include <unistd.h> |
---|
27 | #include <string.h> |
---|
28 | #include <signal.h> |
---|
29 | #include <sys/stat.h> |
---|
30 | #include <sys/types.h> |
---|
31 | |
---|
32 | #include <glib.h> |
---|
33 | #include <glib/gi18n.h> |
---|
34 | #include <glib-object.h> |
---|
35 | |
---|
36 | #include "gdm-settings-backend.h" |
---|
37 | |
---|
38 | #include "gdm-marshal.h" |
---|
39 | |
---|
40 | #define GDM_SETTINGS_BACKEND_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_SETTINGS_BACKEND, GdmSettingsBackendPrivate)) |
---|
41 | |
---|
42 | struct GdmSettingsBackendPrivate |
---|
43 | { |
---|
44 | gpointer dummy; |
---|
45 | }; |
---|
46 | |
---|
47 | enum { |
---|
48 | VALUE_CHANGED, |
---|
49 | LAST_SIGNAL |
---|
50 | }; |
---|
51 | |
---|
52 | static guint signals [LAST_SIGNAL] = { 0, }; |
---|
53 | |
---|
54 | static void gdm_settings_backend_class_init (GdmSettingsBackendClass *klass); |
---|
55 | static void gdm_settings_backend_init (GdmSettingsBackend *settings_backend); |
---|
56 | static void gdm_settings_backend_finalize (GObject *object); |
---|
57 | |
---|
58 | G_DEFINE_ABSTRACT_TYPE (GdmSettingsBackend, gdm_settings_backend, G_TYPE_OBJECT) |
---|
59 | |
---|
60 | GQuark |
---|
61 | gdm_settings_backend_error_quark (void) |
---|
62 | { |
---|
63 | static GQuark ret = 0; |
---|
64 | if (ret == 0) { |
---|
65 | ret = g_quark_from_static_string ("gdm_settings_backend_error"); |
---|
66 | } |
---|
67 | |
---|
68 | return ret; |
---|
69 | } |
---|
70 | |
---|
71 | static gboolean |
---|
72 | gdm_settings_backend_real_get_value (GdmSettingsBackend *settings_backend, |
---|
73 | const char *key, |
---|
74 | char **value, |
---|
75 | GError **error) |
---|
76 | { |
---|
77 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE); |
---|
78 | |
---|
79 | return FALSE; |
---|
80 | } |
---|
81 | |
---|
82 | static gboolean |
---|
83 | gdm_settings_backend_real_set_value (GdmSettingsBackend *settings_backend, |
---|
84 | const char *key, |
---|
85 | const char *value, |
---|
86 | GError **error) |
---|
87 | { |
---|
88 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE); |
---|
89 | |
---|
90 | return FALSE; |
---|
91 | } |
---|
92 | |
---|
93 | gboolean |
---|
94 | gdm_settings_backend_get_value (GdmSettingsBackend *settings_backend, |
---|
95 | const char *key, |
---|
96 | char **value, |
---|
97 | GError **error) |
---|
98 | { |
---|
99 | gboolean ret; |
---|
100 | |
---|
101 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE); |
---|
102 | |
---|
103 | g_object_ref (settings_backend); |
---|
104 | ret = GDM_SETTINGS_BACKEND_GET_CLASS (settings_backend)->get_value (settings_backend, key, value, error); |
---|
105 | g_object_unref (settings_backend); |
---|
106 | |
---|
107 | return ret; |
---|
108 | } |
---|
109 | |
---|
110 | gboolean |
---|
111 | gdm_settings_backend_set_value (GdmSettingsBackend *settings_backend, |
---|
112 | const char *key, |
---|
113 | const char *value, |
---|
114 | GError **error) |
---|
115 | { |
---|
116 | gboolean ret; |
---|
117 | |
---|
118 | g_return_val_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend), FALSE); |
---|
119 | |
---|
120 | g_object_ref (settings_backend); |
---|
121 | ret = GDM_SETTINGS_BACKEND_GET_CLASS (settings_backend)->set_value (settings_backend, key, value, error); |
---|
122 | g_object_unref (settings_backend); |
---|
123 | |
---|
124 | return ret; |
---|
125 | } |
---|
126 | |
---|
127 | void |
---|
128 | gdm_settings_backend_value_changed (GdmSettingsBackend *settings_backend, |
---|
129 | const char *key, |
---|
130 | const char *old_value, |
---|
131 | const char *new_value) |
---|
132 | { |
---|
133 | g_return_if_fail (GDM_IS_SETTINGS_BACKEND (settings_backend)); |
---|
134 | |
---|
135 | g_signal_emit (settings_backend, signals[VALUE_CHANGED], 0, key, old_value, new_value); |
---|
136 | } |
---|
137 | |
---|
138 | static void |
---|
139 | gdm_settings_backend_class_init (GdmSettingsBackendClass *klass) |
---|
140 | { |
---|
141 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
---|
142 | |
---|
143 | object_class->finalize = gdm_settings_backend_finalize; |
---|
144 | |
---|
145 | klass->get_value = gdm_settings_backend_real_get_value; |
---|
146 | klass->set_value = gdm_settings_backend_real_set_value; |
---|
147 | |
---|
148 | signals [VALUE_CHANGED] = |
---|
149 | g_signal_new ("value-changed", |
---|
150 | G_TYPE_FROM_CLASS (object_class), |
---|
151 | G_SIGNAL_RUN_LAST, |
---|
152 | G_STRUCT_OFFSET (GdmSettingsBackendClass, value_changed), |
---|
153 | NULL, |
---|
154 | NULL, |
---|
155 | gdm_marshal_VOID__STRING_STRING_STRING, |
---|
156 | G_TYPE_NONE, |
---|
157 | 3, |
---|
158 | G_TYPE_STRING, |
---|
159 | G_TYPE_STRING, |
---|
160 | G_TYPE_STRING); |
---|
161 | |
---|
162 | g_type_class_add_private (klass, sizeof (GdmSettingsBackendPrivate)); |
---|
163 | } |
---|
164 | |
---|
165 | static void |
---|
166 | gdm_settings_backend_init (GdmSettingsBackend *settings_backend) |
---|
167 | { |
---|
168 | settings_backend->priv = GDM_SETTINGS_BACKEND_GET_PRIVATE (settings_backend); |
---|
169 | } |
---|
170 | |
---|
171 | static void |
---|
172 | gdm_settings_backend_finalize (GObject *object) |
---|
173 | { |
---|
174 | GdmSettingsBackend *settings_backend; |
---|
175 | |
---|
176 | g_return_if_fail (object != NULL); |
---|
177 | g_return_if_fail (GDM_IS_SETTINGS_BACKEND (object)); |
---|
178 | |
---|
179 | settings_backend = GDM_SETTINGS_BACKEND (object); |
---|
180 | |
---|
181 | g_return_if_fail (settings_backend->priv != NULL); |
---|
182 | |
---|
183 | G_OBJECT_CLASS (gdm_settings_backend_parent_class)->finalize (object); |
---|
184 | } |
---|