[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
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| 4 | * |
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| 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation; either version 2 of the License, or |
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| 8 | * (at your option) any later version. |
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| 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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| 14 | * |
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| 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | * |
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| 19 | */ |
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| 20 | |
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| 21 | #include "config.h" |
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| 22 | |
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| 23 | #include <stdlib.h> |
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| 24 | #include <stdio.h> |
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| 25 | #include <fcntl.h> |
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| 26 | #include <unistd.h> |
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| 27 | #include <string.h> |
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| 28 | #include <signal.h> |
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| 29 | #include <sys/stat.h> |
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| 30 | #include <sys/types.h> |
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| 31 | |
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| 32 | #include <glib.h> |
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| 33 | #include <glib/gi18n.h> |
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| 34 | #include <glib/gstdio.h> |
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| 35 | #include <glib-object.h> |
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| 36 | #define DBUS_API_SUBJECT_TO_CHANGE |
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| 37 | #include <dbus/dbus-glib.h> |
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| 38 | #include <dbus/dbus-glib-lowlevel.h> |
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| 39 | |
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| 40 | #include "gdm-settings.h" |
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| 41 | #include "gdm-settings-glue.h" |
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| 42 | |
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| 43 | #include "gdm-settings-desktop-backend.h" |
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| 44 | |
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| 45 | #include "gdm-marshal.h" |
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| 46 | |
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| 47 | #define GDM_DBUS_PATH "/org/gnome/DisplayManager" |
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| 48 | #define GDM_SETTINGS_DBUS_PATH GDM_DBUS_PATH "/Settings" |
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| 49 | #define GDM_SETTINGS_DBUS_NAME "org.gnome.DisplayManager.Settings" |
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| 50 | |
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| 51 | #define GDM_SETTINGS_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_SETTINGS, GdmSettingsPrivate)) |
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| 52 | |
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| 53 | struct GdmSettingsPrivate |
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| 54 | { |
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| 55 | DBusGConnection *connection; |
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| 56 | GdmSettingsBackend *backend; |
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| 57 | }; |
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| 58 | |
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| 59 | enum { |
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| 60 | VALUE_CHANGED, |
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| 61 | LAST_SIGNAL |
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| 62 | }; |
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| 63 | |
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| 64 | static guint signals [LAST_SIGNAL] = { 0, }; |
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| 65 | |
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| 66 | static void gdm_settings_class_init (GdmSettingsClass *klass); |
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| 67 | static void gdm_settings_init (GdmSettings *settings); |
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| 68 | static void gdm_settings_finalize (GObject *object); |
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| 69 | |
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| 70 | static gpointer settings_object = NULL; |
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| 71 | |
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| 72 | G_DEFINE_TYPE (GdmSettings, gdm_settings, G_TYPE_OBJECT) |
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| 73 | |
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| 74 | GQuark |
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| 75 | gdm_settings_error_quark (void) |
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| 76 | { |
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| 77 | static GQuark ret = 0; |
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| 78 | if (ret == 0) { |
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| 79 | ret = g_quark_from_static_string ("gdm_settings_error"); |
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| 80 | } |
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| 81 | |
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| 82 | return ret; |
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| 83 | } |
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| 84 | |
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| 85 | /* |
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| 86 | dbus-send --system --print-reply --dest=org.gnome.DisplayManager /org/gnome/DisplayManager/Settings org.gnome.DisplayManager.Settings.GetValue string:"xdmcp/Enable" |
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| 87 | */ |
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| 88 | |
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| 89 | gboolean |
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| 90 | gdm_settings_get_value (GdmSettings *settings, |
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| 91 | const char *key, |
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| 92 | char **value, |
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| 93 | GError **error) |
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| 94 | { |
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| 95 | GError *local_error; |
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| 96 | gboolean res; |
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| 97 | |
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| 98 | g_return_val_if_fail (GDM_IS_SETTINGS (settings), FALSE); |
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| 99 | g_return_val_if_fail (key != NULL, FALSE); |
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| 100 | |
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| 101 | local_error = NULL; |
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| 102 | res = gdm_settings_backend_get_value (settings->priv->backend, |
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| 103 | key, |
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| 104 | value, |
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| 105 | &local_error); |
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| 106 | if (! res) { |
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| 107 | g_propagate_error (error, local_error); |
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| 108 | } |
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| 109 | |
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| 110 | return res; |
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| 111 | } |
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| 112 | |
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| 113 | /* |
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| 114 | dbus-send --system --print-reply --dest=org.gnome.DisplayManager /org/gnome/DisplayManager/Settings org.gnome.DisplayManager.Settings.SetValue string:"xdmcp/Enable" string:"false" |
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| 115 | */ |
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| 116 | |
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| 117 | gboolean |
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| 118 | gdm_settings_set_value (GdmSettings *settings, |
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| 119 | const char *key, |
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| 120 | const char *value, |
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| 121 | GError **error) |
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| 122 | { |
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| 123 | GError *local_error; |
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| 124 | gboolean res; |
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| 125 | |
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| 126 | g_return_val_if_fail (GDM_IS_SETTINGS (settings), FALSE); |
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| 127 | g_return_val_if_fail (key != NULL, FALSE); |
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| 128 | |
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| 129 | g_debug ("Setting value %s", key); |
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| 130 | |
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| 131 | local_error = NULL; |
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| 132 | res = gdm_settings_backend_set_value (settings->priv->backend, |
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| 133 | key, |
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| 134 | value, |
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| 135 | &local_error); |
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| 136 | if (! res) { |
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| 137 | g_propagate_error (error, local_error); |
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| 138 | } |
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| 139 | |
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| 140 | return res; |
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| 141 | } |
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| 142 | |
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| 143 | static gboolean |
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| 144 | register_settings (GdmSettings *settings) |
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| 145 | { |
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| 146 | GError *error = NULL; |
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| 147 | |
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| 148 | error = NULL; |
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| 149 | settings->priv->connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error); |
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| 150 | if (settings->priv->connection == NULL) { |
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| 151 | if (error != NULL) { |
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| 152 | g_critical ("error getting system bus: %s", error->message); |
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| 153 | g_error_free (error); |
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| 154 | } |
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| 155 | exit (1); |
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| 156 | } |
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| 157 | |
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| 158 | dbus_g_connection_register_g_object (settings->priv->connection, GDM_SETTINGS_DBUS_PATH, G_OBJECT (settings)); |
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| 159 | |
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| 160 | return TRUE; |
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| 161 | } |
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| 162 | |
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| 163 | /* |
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| 164 | dbus-send --system --print-reply --dest=org.gnome.DisplayManager /org/gnome/DisplayManager/Settings org.freedesktop.DBus.Introspectable.Introspect |
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| 165 | */ |
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| 166 | |
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| 167 | static void |
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| 168 | gdm_settings_class_init (GdmSettingsClass *klass) |
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| 169 | { |
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| 170 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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| 171 | |
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| 172 | object_class->finalize = gdm_settings_finalize; |
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| 173 | |
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| 174 | signals [VALUE_CHANGED] = |
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| 175 | g_signal_new ("value-changed", |
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| 176 | G_TYPE_FROM_CLASS (object_class), |
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| 177 | G_SIGNAL_RUN_LAST, |
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| 178 | G_STRUCT_OFFSET (GdmSettingsClass, value_changed), |
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| 179 | NULL, |
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| 180 | NULL, |
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| 181 | gdm_marshal_VOID__STRING_STRING_STRING, |
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| 182 | G_TYPE_NONE, |
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| 183 | 3, |
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| 184 | G_TYPE_STRING, |
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| 185 | G_TYPE_STRING, |
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| 186 | G_TYPE_STRING); |
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| 187 | |
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| 188 | g_type_class_add_private (klass, sizeof (GdmSettingsPrivate)); |
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| 189 | |
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| 190 | dbus_g_object_type_install_info (GDM_TYPE_SETTINGS, &dbus_glib_gdm_settings_object_info); |
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| 191 | } |
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| 192 | |
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| 193 | static void |
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| 194 | backend_value_changed (GdmSettingsBackend *backend, |
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| 195 | const char *key, |
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| 196 | const char *old_value, |
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| 197 | const char *new_value, |
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| 198 | GdmSettings *settings) |
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| 199 | { |
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| 200 | g_debug ("Emitting value-changed %s %s %s", key, old_value, new_value); |
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| 201 | /* just proxy it */ |
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| 202 | g_signal_emit (settings, |
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| 203 | signals [VALUE_CHANGED], |
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| 204 | 0, |
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| 205 | key, |
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| 206 | old_value, |
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| 207 | new_value); |
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| 208 | } |
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| 209 | |
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| 210 | static void |
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| 211 | gdm_settings_init (GdmSettings *settings) |
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| 212 | { |
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| 213 | settings->priv = GDM_SETTINGS_GET_PRIVATE (settings); |
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| 214 | |
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| 215 | settings->priv->backend = gdm_settings_desktop_backend_new (); |
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| 216 | g_signal_connect (settings->priv->backend, |
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| 217 | "value-changed", |
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| 218 | G_CALLBACK (backend_value_changed), |
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| 219 | settings); |
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| 220 | } |
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| 221 | |
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| 222 | static void |
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| 223 | gdm_settings_finalize (GObject *object) |
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| 224 | { |
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| 225 | GdmSettings *settings; |
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| 226 | |
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| 227 | g_return_if_fail (object != NULL); |
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| 228 | g_return_if_fail (GDM_IS_SETTINGS (object)); |
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| 229 | |
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| 230 | settings = GDM_SETTINGS (object); |
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| 231 | |
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| 232 | g_return_if_fail (settings->priv != NULL); |
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| 233 | |
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| 234 | if (settings->priv->backend != NULL) { |
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| 235 | g_object_unref (settings->priv->backend); |
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| 236 | } |
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| 237 | |
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| 238 | G_OBJECT_CLASS (gdm_settings_parent_class)->finalize (object); |
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| 239 | } |
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| 240 | |
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| 241 | GdmSettings * |
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| 242 | gdm_settings_new (void) |
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| 243 | { |
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| 244 | if (settings_object != NULL) { |
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| 245 | g_object_ref (settings_object); |
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| 246 | } else { |
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| 247 | gboolean res; |
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| 248 | |
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| 249 | settings_object = g_object_new (GDM_TYPE_SETTINGS, NULL); |
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| 250 | g_object_add_weak_pointer (settings_object, |
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| 251 | (gpointer *) &settings_object); |
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| 252 | res = register_settings (settings_object); |
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| 253 | if (! res) { |
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| 254 | g_warning ("Unable to register settings"); |
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| 255 | g_object_unref (settings_object); |
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| 256 | return NULL; |
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| 257 | } |
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| 258 | } |
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| 259 | |
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| 260 | return GDM_SETTINGS (settings_object); |
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| 261 | } |
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