1 | /* gdm-session-settings.c - Loads session and language from ~/.dmrc |
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2 | * |
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3 | * Copyright (C) 2008 Red Hat, Inc. |
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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, or (at your option) |
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8 | * 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 |
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18 | * 02111-1307, USA. |
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19 | * |
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20 | * Written by: Ray Strode <rstrode@redhat.com> |
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21 | */ |
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22 | #include "config.h" |
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23 | #include "gdm-session-settings.h" |
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24 | |
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25 | #include <errno.h> |
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26 | #include <pwd.h> |
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27 | #include <string.h> |
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28 | #include <sys/types.h> |
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29 | #include <unistd.h> |
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30 | |
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31 | #include <glib.h> |
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32 | #include <glib-object.h> |
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33 | #include <glib/gi18n.h> |
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34 | |
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35 | struct _GdmSessionSettingsPrivate |
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36 | { |
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37 | char *session_name; |
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38 | char *language_name; |
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39 | char *layout_name; |
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40 | }; |
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41 | |
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42 | static void gdm_session_settings_finalize (GObject *object); |
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43 | static void gdm_session_settings_class_install_properties (GdmSessionSettingsClass * |
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44 | settings_class); |
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45 | |
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46 | static void gdm_session_settings_set_property (GObject *object, |
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47 | guint prop_id, |
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48 | const GValue *value, |
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49 | GParamSpec *pspec); |
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50 | static void gdm_session_settings_get_property (GObject *object, |
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51 | guint prop_id, |
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52 | GValue *value, |
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53 | GParamSpec *pspec); |
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54 | |
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55 | enum { |
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56 | PROP_0 = 0, |
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57 | PROP_SESSION_NAME, |
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58 | PROP_LANGUAGE_NAME, |
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59 | PROP_LAYOUT_NAME, |
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60 | }; |
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61 | |
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62 | G_DEFINE_TYPE (GdmSessionSettings, gdm_session_settings, G_TYPE_OBJECT) |
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63 | |
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64 | static void |
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65 | gdm_session_settings_class_init (GdmSessionSettingsClass *settings_class) |
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66 | { |
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67 | GObjectClass *object_class; |
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68 | |
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69 | object_class = G_OBJECT_CLASS (settings_class); |
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70 | |
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71 | object_class->finalize = gdm_session_settings_finalize; |
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72 | |
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73 | gdm_session_settings_class_install_properties (settings_class); |
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74 | |
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75 | g_type_class_add_private (settings_class, sizeof (GdmSessionSettingsPrivate)); |
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76 | } |
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77 | |
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78 | static void |
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79 | gdm_session_settings_class_install_properties (GdmSessionSettingsClass *settings_class) |
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80 | { |
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81 | GObjectClass *object_class; |
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82 | GParamSpec *param_spec; |
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83 | |
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84 | object_class = G_OBJECT_CLASS (settings_class); |
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85 | object_class->set_property = gdm_session_settings_set_property; |
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86 | object_class->get_property = gdm_session_settings_get_property; |
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87 | |
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88 | param_spec = g_param_spec_string ("session-name", "Session Name", |
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89 | "The name of the session", |
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90 | NULL, G_PARAM_READWRITE); |
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91 | g_object_class_install_property (object_class, PROP_SESSION_NAME, param_spec); |
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92 | |
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93 | param_spec = g_param_spec_string ("language-name", "Language Name", |
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94 | "The name of the language", |
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95 | NULL, |
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96 | G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY); |
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97 | g_object_class_install_property (object_class, PROP_LANGUAGE_NAME, param_spec); |
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98 | param_spec = g_param_spec_string ("layout-name", "Keyboard Layout Name", |
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99 | "The name of the keyboard layout", |
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100 | NULL, |
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101 | G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY); |
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102 | g_object_class_install_property (object_class, PROP_LAYOUT_NAME, param_spec); |
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103 | } |
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104 | |
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105 | static void |
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106 | gdm_session_settings_init (GdmSessionSettings *settings) |
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107 | { |
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108 | settings->priv = G_TYPE_INSTANCE_GET_PRIVATE (settings, |
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109 | GDM_TYPE_SESSION_SETTINGS, |
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110 | GdmSessionSettingsPrivate); |
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111 | |
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112 | } |
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113 | |
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114 | static void |
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115 | gdm_session_settings_finalize (GObject *object) |
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116 | { |
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117 | GdmSessionSettings *settings; |
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118 | GObjectClass *parent_class; |
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119 | |
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120 | settings = GDM_SESSION_SETTINGS (object); |
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121 | |
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122 | g_free (settings->priv->session_name); |
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123 | g_free (settings->priv->language_name); |
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124 | g_free (settings->priv->layout_name); |
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125 | |
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126 | parent_class = G_OBJECT_CLASS (gdm_session_settings_parent_class); |
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127 | |
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128 | if (parent_class->finalize != NULL) { |
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129 | parent_class->finalize (object); |
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130 | } |
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131 | } |
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132 | |
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133 | void |
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134 | gdm_session_settings_set_language_name (GdmSessionSettings *settings, |
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135 | const char *language_name) |
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136 | { |
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137 | g_return_if_fail (GDM_IS_SESSION_SETTINGS (settings)); |
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138 | |
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139 | if (settings->priv->language_name == NULL || |
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140 | strcmp (settings->priv->language_name, language_name) != 0) { |
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141 | settings->priv->language_name = g_strdup (language_name); |
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142 | g_object_notify (G_OBJECT (settings), "language-name"); |
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143 | } |
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144 | } |
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145 | |
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146 | void |
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147 | gdm_session_settings_set_layout_name (GdmSessionSettings *settings, |
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148 | const char *layout_name) |
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149 | { |
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150 | g_return_if_fail (GDM_IS_SESSION_SETTINGS (settings)); |
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151 | |
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152 | if (settings->priv->layout_name == NULL || |
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153 | strcmp (settings->priv->layout_name, layout_name) != 0) { |
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154 | settings->priv->layout_name = g_strdup (layout_name); |
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155 | g_object_notify (G_OBJECT (settings), "layout-name"); |
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156 | } |
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157 | } |
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158 | |
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159 | void |
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160 | gdm_session_settings_set_session_name (GdmSessionSettings *settings, |
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161 | const char *session_name) |
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162 | { |
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163 | g_return_if_fail (GDM_IS_SESSION_SETTINGS (settings)); |
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164 | |
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165 | if (settings->priv->session_name == NULL || |
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166 | strcmp (settings->priv->session_name, session_name) != 0) { |
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167 | settings->priv->session_name = g_strdup (session_name); |
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168 | g_object_notify (G_OBJECT (settings), "session-name"); |
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169 | } |
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170 | } |
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171 | |
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172 | char * |
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173 | gdm_session_settings_get_language_name (GdmSessionSettings *settings) |
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174 | { |
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175 | g_return_val_if_fail (GDM_IS_SESSION_SETTINGS (settings), NULL); |
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176 | return g_strdup (settings->priv->language_name); |
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177 | } |
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178 | |
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179 | char * |
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180 | gdm_session_settings_get_layout_name (GdmSessionSettings *settings) |
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181 | { |
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182 | g_return_val_if_fail (GDM_IS_SESSION_SETTINGS (settings), NULL); |
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183 | return g_strdup (settings->priv->layout_name); |
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184 | } |
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185 | |
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186 | char * |
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187 | gdm_session_settings_get_session_name (GdmSessionSettings *settings) |
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188 | { |
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189 | g_return_val_if_fail (GDM_IS_SESSION_SETTINGS (settings), NULL); |
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190 | return g_strdup (settings->priv->session_name); |
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191 | } |
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192 | |
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193 | static void |
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194 | gdm_session_settings_set_property (GObject *object, |
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195 | guint prop_id, |
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196 | const GValue *value, |
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197 | GParamSpec *pspec) |
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198 | { |
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199 | GdmSessionSettings *settings; |
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200 | |
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201 | settings = GDM_SESSION_SETTINGS (object); |
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202 | |
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203 | switch (prop_id) { |
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204 | case PROP_LANGUAGE_NAME: |
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205 | gdm_session_settings_set_language_name (settings, g_value_get_string (value)); |
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206 | break; |
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207 | |
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208 | case PROP_LAYOUT_NAME: |
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209 | gdm_session_settings_set_layout_name (settings, g_value_get_string (value)); |
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210 | break; |
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211 | |
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212 | case PROP_SESSION_NAME: |
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213 | gdm_session_settings_set_session_name (settings, g_value_get_string (value)); |
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214 | break; |
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215 | |
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216 | default: |
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217 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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218 | } |
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219 | } |
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220 | |
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221 | static void |
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222 | gdm_session_settings_get_property (GObject *object, |
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223 | guint prop_id, |
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224 | GValue *value, |
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225 | GParamSpec *pspec) |
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226 | { |
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227 | GdmSessionSettings *settings; |
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228 | |
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229 | settings = GDM_SESSION_SETTINGS (object); |
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230 | |
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231 | switch (prop_id) { |
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232 | case PROP_SESSION_NAME: |
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233 | g_value_set_string (value, settings->priv->session_name); |
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234 | break; |
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235 | |
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236 | case PROP_LANGUAGE_NAME: |
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237 | g_value_set_string (value, settings->priv->language_name); |
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238 | break; |
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239 | |
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240 | case PROP_LAYOUT_NAME: |
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241 | g_value_set_string (value, settings->priv->layout_name); |
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242 | break; |
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243 | |
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244 | default: |
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245 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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246 | } |
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247 | } |
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248 | |
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249 | GdmSessionSettings * |
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250 | gdm_session_settings_new (void) |
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251 | { |
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252 | GdmSessionSettings *settings; |
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253 | |
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254 | settings = g_object_new (GDM_TYPE_SESSION_SETTINGS, |
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255 | NULL); |
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256 | |
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257 | return settings; |
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258 | } |
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259 | |
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260 | gboolean |
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261 | gdm_session_settings_is_loaded (GdmSessionSettings *settings) |
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262 | { |
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263 | return settings->priv->session_name != NULL || |
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264 | settings->priv->language_name != NULL || |
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265 | settings->priv->layout_name != NULL; |
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266 | } |
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267 | |
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268 | gboolean |
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269 | gdm_session_settings_load (GdmSessionSettings *settings, |
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270 | const char *username, |
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271 | GError **error) |
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272 | { |
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273 | GKeyFile *key_file; |
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274 | GError *load_error; |
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275 | gboolean is_loaded; |
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276 | char *session_name; |
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277 | char *language_name; |
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278 | char *layout_name; |
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279 | char *filename; |
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280 | |
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281 | g_return_val_if_fail (settings != NULL, FALSE); |
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282 | g_return_val_if_fail (username != NULL, FALSE); |
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283 | g_return_val_if_fail (!gdm_session_settings_is_loaded (settings), FALSE); |
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284 | |
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285 | filename = g_build_filename (GDM_CACHE_DIR, username, "dmrc", NULL); |
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286 | |
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287 | is_loaded = FALSE; |
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288 | key_file = g_key_file_new (); |
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289 | |
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290 | load_error = NULL; |
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291 | if (!g_key_file_load_from_file (key_file, filename, |
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292 | G_KEY_FILE_NONE, &load_error)) { |
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293 | g_propagate_error (error, load_error); |
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294 | goto out; |
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295 | } |
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296 | |
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297 | session_name = g_key_file_get_string (key_file, "Desktop", "Session", |
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298 | &load_error); |
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299 | |
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300 | if (session_name != NULL) { |
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301 | gdm_session_settings_set_session_name (settings, session_name); |
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302 | g_free (session_name); |
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303 | } else if (g_error_matches (load_error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND)) { |
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304 | g_error_free (load_error); |
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305 | load_error = NULL; |
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306 | } else { |
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307 | g_propagate_error (error, load_error); |
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308 | goto out; |
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309 | } |
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310 | |
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311 | language_name = g_key_file_get_string (key_file, "Desktop", "Language", |
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312 | &load_error); |
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313 | |
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314 | if (language_name != NULL) { |
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315 | gdm_session_settings_set_language_name (settings, language_name); |
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316 | g_free (language_name); |
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317 | } else if (g_error_matches (load_error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND)) { |
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318 | g_error_free (load_error); |
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319 | load_error = NULL; |
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320 | } else { |
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321 | g_propagate_error (error, load_error); |
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322 | goto out; |
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323 | } |
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324 | |
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325 | layout_name = g_key_file_get_string (key_file, "Desktop", "Layout", |
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326 | &load_error); |
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327 | |
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328 | if (layout_name != NULL) { |
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329 | gdm_session_settings_set_layout_name (settings, layout_name); |
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330 | g_free (layout_name); |
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331 | } else if (g_error_matches (load_error, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_KEY_NOT_FOUND)) { |
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332 | g_error_free (load_error); |
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333 | load_error = NULL; |
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334 | } else { |
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335 | g_propagate_error (error, load_error); |
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336 | goto out; |
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337 | } |
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338 | |
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339 | is_loaded = TRUE; |
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340 | out: |
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341 | g_key_file_free (key_file); |
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342 | g_free (filename); |
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343 | |
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344 | return is_loaded; |
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345 | } |
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346 | |
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347 | gboolean |
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348 | gdm_session_settings_save (GdmSessionSettings *settings, |
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349 | const char *home_directory, |
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350 | GError **error) |
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351 | { |
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352 | GKeyFile *key_file; |
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353 | GError *file_error; |
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354 | gboolean is_saved; |
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355 | char *filename; |
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356 | gsize length; |
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357 | gchar *contents; |
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358 | |
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359 | g_return_val_if_fail (GDM_IS_SESSION_SETTINGS (settings), FALSE); |
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360 | g_return_val_if_fail (home_directory != NULL, FALSE); |
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361 | g_return_val_if_fail (gdm_session_settings_is_loaded (settings), FALSE); |
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362 | filename = g_build_filename (home_directory, ".dmrc", NULL); |
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363 | |
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364 | is_saved = FALSE; |
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365 | key_file = g_key_file_new (); |
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366 | |
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367 | file_error = NULL; |
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368 | g_key_file_load_from_file (key_file, filename, |
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369 | G_KEY_FILE_KEEP_COMMENTS | |
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370 | G_KEY_FILE_KEEP_TRANSLATIONS, |
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371 | NULL); |
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372 | |
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373 | if (settings->priv->session_name != NULL) { |
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374 | g_key_file_set_string (key_file, "Desktop", "Session", |
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375 | settings->priv->session_name); |
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376 | } |
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377 | |
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378 | if (settings->priv->language_name != NULL) { |
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379 | g_key_file_set_string (key_file, "Desktop", "Language", |
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380 | settings->priv->language_name); |
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381 | } |
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382 | |
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383 | if (settings->priv->layout_name != NULL) { |
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384 | g_key_file_set_string (key_file, "Desktop", "Layout", |
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385 | settings->priv->layout_name); |
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386 | } |
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387 | |
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388 | contents = g_key_file_to_data (key_file, &length, &file_error); |
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389 | |
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390 | if (contents == NULL) { |
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391 | g_propagate_error (error, file_error); |
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392 | goto out; |
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393 | } |
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394 | |
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395 | if (!g_file_set_contents (filename, contents, length, &file_error)) { |
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396 | g_free (contents); |
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397 | g_propagate_error (error, file_error); |
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398 | goto out; |
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399 | } |
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400 | g_free (contents); |
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401 | |
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402 | is_saved = TRUE; |
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403 | out: |
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404 | g_key_file_free (key_file); |
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405 | g_free (filename); |
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406 | |
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407 | return is_saved; |
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408 | } |
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