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) 2008 William Jon McCann <jmccann@redhat.com> |
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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 <unistd.h> |
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26 | #include <sys/types.h> |
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27 | #include <sys/wait.h> |
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28 | #include <errno.h> |
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29 | |
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30 | #include <glib.h> |
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31 | #include <glib/gi18n.h> |
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32 | #include <glib/gstdio.h> |
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33 | #include <glib-object.h> |
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34 | |
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35 | #include <gdk/gdkx.h> |
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36 | #include <gtk/gtk.h> |
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37 | |
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38 | #include "gdm-remote-login-window.h" |
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39 | #include "gdm-common.h" |
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40 | |
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41 | #define GDM_REMOTE_LOGIN_WINDOW_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_REMOTE_LOGIN_WINDOW, GdmRemoteLoginWindowPrivate)) |
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42 | |
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43 | struct GdmRemoteLoginWindowPrivate |
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44 | { |
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45 | gboolean connected; |
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46 | char *hostname; |
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47 | char *display; |
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48 | GPid xserver_pid; |
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49 | guint xserver_watch_id; |
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50 | }; |
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51 | |
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52 | enum { |
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53 | PROP_0, |
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54 | }; |
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55 | |
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56 | enum { |
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57 | DISCONNECTED, |
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58 | LAST_SIGNAL |
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59 | }; |
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60 | |
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61 | static guint signals [LAST_SIGNAL] = { 0, }; |
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62 | |
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63 | static void gdm_remote_login_window_class_init (GdmRemoteLoginWindowClass *klass); |
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64 | static void gdm_remote_login_window_init (GdmRemoteLoginWindow *remote_login_window); |
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65 | static void gdm_remote_login_window_finalize (GObject *object); |
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66 | |
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67 | G_DEFINE_TYPE (GdmRemoteLoginWindow, gdm_remote_login_window, GTK_TYPE_WINDOW) |
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68 | |
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69 | static void |
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70 | xserver_child_watch (GPid pid, |
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71 | int status, |
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72 | GdmRemoteLoginWindow *login_window) |
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73 | { |
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74 | g_debug ("GdmRemoteLoginWindow: **** xserver (pid:%d) done (%s:%d)", |
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75 | (int) pid, |
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76 | WIFEXITED (status) ? "status" |
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77 | : WIFSIGNALED (status) ? "signal" |
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78 | : "unknown", |
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79 | WIFEXITED (status) ? WEXITSTATUS (status) |
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80 | : WIFSIGNALED (status) ? WTERMSIG (status) |
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81 | : -1); |
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82 | |
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83 | g_spawn_close_pid (login_window->priv->xserver_pid); |
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84 | |
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85 | login_window->priv->xserver_pid = -1; |
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86 | login_window->priv->xserver_watch_id = 0; |
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87 | |
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88 | gtk_widget_destroy (GTK_WIDGET (login_window)); |
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89 | } |
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90 | |
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91 | static gboolean |
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92 | start_xephyr (GdmRemoteLoginWindow *login_window) |
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93 | { |
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94 | GError *local_error; |
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95 | char **argv; |
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96 | gboolean res; |
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97 | gboolean ret; |
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98 | int flags; |
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99 | char *command; |
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100 | |
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101 | command = g_strdup_printf ("Xephyr -query %s -parent 0x%x -br -once %s", |
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102 | login_window->priv->hostname, |
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103 | (unsigned int)GDK_WINDOW_XID (GTK_WIDGET (login_window)->window), |
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104 | login_window->priv->display); |
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105 | g_debug ("GdmRemoteLoginWindow: Running: %s", command); |
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106 | |
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107 | ret = FALSE; |
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108 | |
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109 | argv = NULL; |
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110 | local_error = NULL; |
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111 | res = g_shell_parse_argv (command, NULL, &argv, &local_error); |
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112 | if (! res) { |
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113 | g_warning ("GdmRemoteLoginWindow: Unable to parse command: %s", local_error->message); |
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114 | g_error_free (local_error); |
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115 | goto out; |
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116 | } |
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117 | |
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118 | flags = G_SPAWN_SEARCH_PATH |
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119 | | G_SPAWN_DO_NOT_REAP_CHILD; |
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120 | |
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121 | local_error = NULL; |
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122 | res = g_spawn_async (NULL, |
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123 | argv, |
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124 | NULL, |
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125 | flags, |
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126 | NULL, |
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127 | NULL, |
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128 | &login_window->priv->xserver_pid, |
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129 | &local_error); |
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130 | g_strfreev (argv); |
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131 | |
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132 | if (! res) { |
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133 | g_warning ("GdmRemoteLoginWindow: Unable to run command %s: %s", |
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134 | command, |
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135 | local_error->message); |
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136 | g_error_free (local_error); |
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137 | goto out; |
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138 | } |
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139 | |
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140 | g_debug ("GdmRemoteLoginWindow: Started: pid=%d command='%s'", |
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141 | login_window->priv->xserver_pid, |
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142 | command); |
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143 | |
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144 | login_window->priv->xserver_watch_id = g_child_watch_add (login_window->priv->xserver_pid, |
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145 | (GChildWatchFunc)xserver_child_watch, |
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146 | login_window); |
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147 | ret = TRUE; |
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148 | |
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149 | out: |
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150 | g_free (command); |
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151 | |
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152 | return ret; |
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153 | } |
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154 | |
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155 | static gboolean |
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156 | start_xdmx (GdmRemoteLoginWindow *login_window) |
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157 | { |
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158 | char *cmd; |
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159 | gboolean res; |
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160 | GError *error; |
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161 | |
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162 | cmd = g_strdup_printf ("Xdmx -query %s -br -once %s", |
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163 | login_window->priv->hostname, |
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164 | login_window->priv->display); |
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165 | g_debug ("Running: %s", cmd); |
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166 | |
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167 | error = NULL; |
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168 | res = g_spawn_command_line_async (cmd, &error); |
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169 | |
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170 | g_free (cmd); |
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171 | |
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172 | if (! res) { |
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173 | g_warning ("Could not start Xdmx X server: %s", error->message); |
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174 | g_error_free (error); |
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175 | return FALSE; |
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176 | } |
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177 | |
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178 | return TRUE; |
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179 | } |
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180 | |
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181 | gboolean |
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182 | gdm_remote_login_window_connect (GdmRemoteLoginWindow *login_window, |
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183 | const char *hostname) |
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184 | { |
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185 | gboolean res; |
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186 | char *title; |
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187 | |
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188 | title = g_strdup_printf (_("Remote Login (Connecting to %s...)"), hostname); |
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189 | |
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190 | gtk_window_set_title (GTK_WINDOW (login_window), title); |
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191 | |
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192 | login_window->priv->hostname = g_strdup (hostname); |
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193 | login_window->priv->display = g_strdup (":300"); |
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194 | |
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195 | if (0) { |
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196 | res = start_xdmx (login_window); |
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197 | } else { |
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198 | res = start_xephyr (login_window); |
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199 | } |
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200 | |
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201 | if (res) { |
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202 | title = g_strdup_printf (_("Remote Login (Connected to %s)"), hostname); |
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203 | gtk_window_set_title (GTK_WINDOW (login_window), title); |
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204 | g_free (title); |
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205 | } |
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206 | |
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207 | return res; |
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208 | } |
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209 | |
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210 | static void |
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211 | gdm_remote_login_window_set_property (GObject *object, |
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212 | guint prop_id, |
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213 | const GValue *value, |
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214 | GParamSpec *pspec) |
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215 | { |
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216 | switch (prop_id) { |
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217 | default: |
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218 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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219 | break; |
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220 | } |
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221 | } |
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222 | |
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223 | static void |
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224 | gdm_remote_login_window_get_property (GObject *object, |
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225 | guint prop_id, |
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226 | GValue *value, |
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227 | GParamSpec *pspec) |
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228 | { |
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229 | switch (prop_id) { |
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230 | default: |
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231 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
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232 | break; |
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233 | } |
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234 | } |
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235 | |
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236 | static GObject * |
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237 | gdm_remote_login_window_constructor (GType type, |
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238 | guint n_construct_properties, |
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239 | GObjectConstructParam *construct_properties) |
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240 | { |
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241 | GdmRemoteLoginWindow *login_window; |
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242 | |
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243 | login_window = GDM_REMOTE_LOGIN_WINDOW (G_OBJECT_CLASS (gdm_remote_login_window_parent_class)->constructor (type, |
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244 | n_construct_properties, |
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245 | construct_properties)); |
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246 | |
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247 | |
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248 | return G_OBJECT (login_window); |
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249 | } |
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250 | |
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251 | static void |
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252 | gdm_remote_login_window_class_init (GdmRemoteLoginWindowClass *klass) |
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253 | { |
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254 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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255 | |
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256 | object_class->get_property = gdm_remote_login_window_get_property; |
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257 | object_class->set_property = gdm_remote_login_window_set_property; |
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258 | object_class->constructor = gdm_remote_login_window_constructor; |
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259 | object_class->finalize = gdm_remote_login_window_finalize; |
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260 | |
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261 | signals [DISCONNECTED] = |
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262 | g_signal_new ("disconnected", |
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263 | G_TYPE_FROM_CLASS (object_class), |
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264 | G_SIGNAL_RUN_LAST, |
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265 | G_STRUCT_OFFSET (GdmRemoteLoginWindowClass, disconnected), |
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266 | NULL, |
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267 | NULL, |
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268 | g_cclosure_marshal_VOID__VOID, |
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269 | G_TYPE_NONE, |
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270 | 0); |
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271 | |
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272 | g_type_class_add_private (klass, sizeof (GdmRemoteLoginWindowPrivate)); |
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273 | } |
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274 | |
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275 | static void |
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276 | gdm_remote_login_window_init (GdmRemoteLoginWindow *login_window) |
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277 | { |
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278 | login_window->priv = GDM_REMOTE_LOGIN_WINDOW_GET_PRIVATE (login_window); |
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279 | |
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280 | gtk_window_set_position (GTK_WINDOW (login_window), GTK_WIN_POS_CENTER_ALWAYS); |
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281 | gtk_window_set_title (GTK_WINDOW (login_window), _("Remote Login")); |
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282 | gtk_window_set_decorated (GTK_WINDOW (login_window), FALSE); |
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283 | gtk_window_set_skip_taskbar_hint (GTK_WINDOW (login_window), TRUE); |
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284 | gtk_window_set_skip_pager_hint (GTK_WINDOW (login_window), TRUE); |
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285 | gtk_window_stick (GTK_WINDOW (login_window)); |
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286 | gtk_window_maximize (GTK_WINDOW (login_window)); |
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287 | gtk_window_set_icon_name (GTK_WINDOW (login_window), "computer"); |
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288 | } |
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289 | |
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290 | static void |
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291 | gdm_remote_login_window_finalize (GObject *object) |
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292 | { |
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293 | GdmRemoteLoginWindow *login_window; |
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294 | |
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295 | g_return_if_fail (object != NULL); |
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296 | g_return_if_fail (GDM_IS_REMOTE_LOGIN_WINDOW (object)); |
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297 | |
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298 | login_window = GDM_REMOTE_LOGIN_WINDOW (object); |
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299 | |
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300 | g_return_if_fail (login_window->priv != NULL); |
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301 | |
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302 | G_OBJECT_CLASS (gdm_remote_login_window_parent_class)->finalize (object); |
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303 | } |
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304 | |
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305 | GtkWidget * |
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306 | gdm_remote_login_window_new (gboolean is_local) |
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307 | { |
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308 | GObject *object; |
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309 | |
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310 | object = g_object_new (GDM_TYPE_REMOTE_LOGIN_WINDOW, |
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311 | NULL); |
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312 | |
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313 | return GTK_WIDGET (object); |
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314 | } |
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