gio/gapplicationimpl-dbus.c

   1 /*
   2  * Copyright © 2010 Codethink Limited
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General
  15  * Public License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  *
  19  * Authors: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #include "gapplicationimpl.h"
  23
  24 #include "gactiongroup.h"
  25 #include "gactiongroupexporter.h"
  26 #include "gremoteactiongroup.h"
  27 #include "gdbusactiongroup.h"
  28 #include "gapplication.h"
  29 #include "gfile.h"
  30 #include "gdbusconnection.h"
  31 #include "gdbusintrospection.h"
  32 #include "gdbuserror.h"
  33
  34 #include <string.h>
  35 #include <stdio.h>
  36
  37 #include "gapplicationcommandline.h"
  38 #include "gdbusmethodinvocation.h"
  39
  40 G_GNUC_INTERNAL gboolean
  41 g_dbus_action_group_sync (GDBusActionGroup  *group,
  42                           GCancellable      *cancellable,
  43                           GError           **error);
  44
  45
  46 /* DBus Interface definition {{{1 */
  47
  48 /* For documentation of these interfaces, see
  49  * http://live.gnome.org/GTK+/GApplication-dbus-apis
  50  */
  51 static const gchar org_gtk_Application_xml[] =
  52   "<node>"
  53   "  <interface name='org.gtk.Application'>"
  54   "    <method name='Activate'>"
  55   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  56   "    </method>"
  57   "    <method name='Open'>"
  58   "      <arg type='as' name='uris' direction='in'/>"
  59   "      <arg type='s' name='hint' direction='in'/>"
  60   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  61   "    </method>"
  62   "    <method name='CommandLine'>"
  63   "      <arg type='o' name='path' direction='in'/>"
  64   "      <arg type='aay' name='arguments' direction='in'/>"
  65   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  66   "      <arg type='i' name='exit-status' direction='out'/>"
  67   "    </method>"
  68   "  </interface>"
  69   "</node>";
  70
  71 static GDBusInterfaceInfo *org_gtk_Application;
  72
  73 static const gchar org_gtk_private_CommandLine_xml[] =
  74   "<node>"
  75   "  <interface name='org.gtk.private.CommandLine'>"
  76   "    <method name='Print'>"
  77   "      <arg type='s' name='message' direction='in'/>"
  78   "    </method>"
  79   "    <method name='PrintError'>"
  80   "      <arg type='s' name='message' direction='in'/>"
  81   "    </method>"
  82   "  </interface>"
  83   "</node>";
  84
  85 static GDBusInterfaceInfo *org_gtk_private_CommandLine;
  86
  87 /* GApplication implementation {{{1 */
  88 struct _GApplicationImpl
  89 {
  90   GDBusConnection *session_bus;
  91   GActionGroup    *exported_actions;
  92   const gchar     *bus_name;
  93
  94   gchar           *object_path;
  95   guint            object_id;
  96   guint            actions_id;
  97
  98   gboolean         properties_live;
  99   gboolean         primary;
 100   gpointer         app;
 101 };
 102
 103
 104 static GApplicationCommandLine *
 105 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 106
 107
 108 static void
 109 g_application_impl_method_call (GDBusConnection       *connection,
 110                                 const gchar           *sender,
 111                                 const gchar           *object_path,
 112                                 const gchar           *interface_name,
 113                                 const gchar           *method_name,
 114                                 GVariant              *parameters,
 115                                 GDBusMethodInvocation *invocation,
 116                                 gpointer               user_data)
 117 {
 118   GApplicationImpl *impl = user_data;
 119   GApplicationClass *class;
 120
 121   class = G_APPLICATION_GET_CLASS (impl->app);
 122
 123   if (strcmp (method_name, "Activate") == 0)
 124     {
 125       GVariant *platform_data;
 126
 127       g_variant_get (parameters, "(@a{sv})", &platform_data);
 128       class->before_emit (impl->app, platform_data);
 129       g_signal_emit_by_name (impl->app, "activate");
 130       class->after_emit (impl->app, platform_data);
 131       g_variant_unref (platform_data);
 132
 133       g_dbus_method_invocation_return_value (invocation, NULL);
 134     }
 135
 136   else if (strcmp (method_name, "Open") == 0)
 137     {
 138       GVariant *platform_data;
 139       const gchar *hint;
 140       GVariant *array;
 141       GFile **files;
 142       gint n, i;
 143
 144       g_variant_get (parameters, "(@ass@a{sv})",
 145                      &array, &hint, &platform_data);
 146
 147       n = g_variant_n_children (array);
 148       files = g_new (GFile *, n + 1);
 149
 150       for (i = 0; i < n; i++)
 151         {
 152           const gchar *uri;
 153
 154           g_variant_get_child (array, i, "&s", &uri);
 155           files[i] = g_file_new_for_uri (uri);
 156         }
 157       g_variant_unref (array);
 158       files[n] = NULL;
 159
 160       class->before_emit (impl->app, platform_data);
 161       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 162       class->after_emit (impl->app, platform_data);
 163
 164       g_variant_unref (platform_data);
 165
 166       for (i = 0; i < n; i++)
 167         g_object_unref (files[i]);
 168       g_free (files);
 169
 170       g_dbus_method_invocation_return_value (invocation, NULL);
 171     }
 172
 173   else if (strcmp (method_name, "CommandLine") == 0)
 174     {
 175       GApplicationCommandLine *cmdline;
 176       GVariant *platform_data;
 177       int status;
 178
 179       cmdline = g_dbus_command_line_new (invocation);
 180       platform_data = g_variant_get_child_value (parameters, 2);
 181       class->before_emit (impl->app, platform_data);
 182       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 183       g_application_command_line_set_exit_status (cmdline, status);
 184       class->after_emit (impl->app, platform_data);
 185       g_variant_unref (platform_data);
 186       g_object_unref (cmdline);
 187     }
 188   else
 189     g_assert_not_reached ();
 190 }
 191
 192 static gchar *
 193 application_path_from_appid (const gchar *appid)
 194 {
 195   gchar *appid_path, *iter;
 196
 197   if (appid == NULL)
 198     /* this is a private implementation detail */
 199     return g_strdup ("/org/gtk/Application/anonymous");
 200
 201   appid_path = g_strconcat ("/", appid, NULL);
 202   for (iter = appid_path; *iter; iter++)
 203     {
 204       if (*iter == '.')
 205         *iter = '/';
 206
 207       if (*iter == '-')
 208         *iter = '_';
 209     }
 210
 211   return appid_path;
 212 }
 213
 214 /* Attempt to become the primary instance.
 215  *
 216  * Returns %TRUE if everything went OK, regardless of if we became the
 217  * primary instance or not.  %FALSE is reserved for when something went
 218  * seriously wrong (and @error will be set too, in that case).
 219  *
 220  * After a %TRUE return, impl->primary will be TRUE if we were
 221  * successful.
 222  */
 223 static gboolean
 224 g_application_impl_attempt_primary (GApplicationImpl  *impl,
 225                                     GCancellable      *cancellable,
 226                                     GError           **error)
 227 {
 228   const static GDBusInterfaceVTable vtable = {
 229     g_application_impl_method_call,
 230   };
 231   GVariant *reply;
 232   guint32 rval;
 233
 234   if (org_gtk_Application == NULL)
 235     {
 236       GError *error = NULL;
 237       GDBusNodeInfo *info;
 238
 239       info = g_dbus_node_info_new_for_xml (org_gtk_Application_xml, &error);
 240       if G_UNLIKELY (info == NULL)
 241         g_error ("%s", error->message);
 242       org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
 243       g_assert (org_gtk_Application != NULL);
 244       g_dbus_interface_info_ref (org_gtk_Application);
 245       g_dbus_node_info_unref (info);
 246     }
 247
 248   /* We could possibly have been D-Bus activated as a result of incoming
 249    * requests on either the application or actiongroup interfaces.
 250    * Because of how GDBus dispatches messages, we need to ensure that
 251    * both of those things are registered before we attempt to request
 252    * our name.
 253    *
 254    * The action group need not be populated yet, as long as it happens
 255    * before we return to the mainloop.  The reason for that is because
 256    * GDBus does the check to make sure the object exists from the worker
 257    * thread but doesn't actually dispatch the action invocation until we
 258    * hit the mainloop in this thread.  There is also no danger of
 259    * receiving 'activate' or 'open' signals until after 'startup' runs,
 260    * for the same reason.
 261    */
 262   impl->object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
 263                                                        org_gtk_Application, &vtable, impl, NULL, error);
 264
 265   if (impl->object_id == 0)
 266     return FALSE;
 267
 268   impl->actions_id = g_dbus_connection_export_action_group (impl->session_bus, impl->object_path,
 269                                                             impl->exported_actions, error);
 270
 271   if (impl->actions_id == 0)
 272     return FALSE;
 273
 274   if (impl->bus_name == NULL)
 275     {
 276       /* If this is a non-unique application then it is sufficient to
 277        * have our object paths registered. We can return now.
 278        *
 279        * Note: non-unique applications always act as primary-instance.
 280        */
 281       impl->primary = TRUE;
 282       return TRUE;
 283     }
 284
 285   /* If this is a unique application then we need to attempt to own
 286    * the well-known name and fall back to remote mode (!is_primary)
 287    * in the case that we can't do that.
 288    */
 289   /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 290   reply = g_dbus_connection_call_sync (impl->session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",
 291                                        "org.freedesktop.DBus", "RequestName",
 292                                        g_variant_new ("(su)", impl->bus_name, 0x4), G_VARIANT_TYPE ("(u)"),
 293                                        0, -1, cancellable, error);
 294
 295   if (reply == NULL)
 296     return FALSE;
 297
 298   g_variant_get (reply, "(u)", &rval);
 299   g_variant_unref (reply);
 300
 301   /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 302   impl->primary = (rval != 3);
 303
 304   return TRUE;
 305 }
 306
 307 /* Stop doing the things that the primary instance does.
 308  *
 309  * This should be called if attempting to become the primary instance
 310  * failed (in order to clean up any partial success) and should also
 311  * be called when freeing the GApplication.
 312  *
 313  * It is safe to call this multiple times.
 314  */
 315 static void
 316 g_application_impl_stop_primary (GApplicationImpl *impl)
 317 {
 318   if (impl->object_id)
 319     {
 320       g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
 321       impl->object_id = 0;
 322     }
 323
 324   if (impl->actions_id)
 325     {
 326       g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
 327       impl->actions_id = 0;
 328     }
 329
 330   if (impl->primary && impl->bus_name)
 331     {
 332       g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
 333                               "/org/freedesktop/DBus", "org.freedesktop.DBus",
 334                               "ReleaseName", g_variant_new ("(s)", impl->bus_name),
 335                               NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 336       impl->primary = FALSE;
 337     }
 338 }
 339
 340 void
 341 g_application_impl_destroy (GApplicationImpl *impl)
 342 {
 343   g_application_impl_stop_primary (impl);
 344
 345   if (impl->session_bus)
 346     g_object_unref (impl->session_bus);
 347
 348   g_free (impl->object_path);
 349
 350   g_slice_free (GApplicationImpl, impl);
 351 }
 352
 353 GApplicationImpl *
 354 g_application_impl_register (GApplication        *application,
 355                              const gchar         *appid,
 356                              GApplicationFlags    flags,
 357                              GActionGroup        *exported_actions,
 358                              GRemoteActionGroup **remote_actions,
 359                              GCancellable        *cancellable,
 360                              GError             **error)
 361 {
 362   GDBusActionGroup *actions;
 363   GApplicationImpl *impl;
 364
 365   g_assert ((flags & G_APPLICATION_NON_UNIQUE) || appid != NULL);
 366
 367   impl = g_slice_new0 (GApplicationImpl);
 368
 369   impl->app = application;
 370   impl->exported_actions = exported_actions;
 371
 372   /* non-unique applications do not attempt to acquire a bus name */
 373   if (~flags & G_APPLICATION_NON_UNIQUE)
 374     impl->bus_name = appid;
 375
 376   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 377
 378   if (impl->session_bus == NULL)
 379     {
 380       /* If we can't connect to the session bus, proceed as a normal
 381        * non-unique application.
 382        */
 383       *remote_actions = NULL;
 384       return impl;
 385     }
 386
 387   impl->object_path = application_path_from_appid (appid);
 388
 389   /* Only try to be the primary instance if
 390    * G_APPLICATION_IS_LAUNCHER was not specified.
 391    */
 392   if (~flags & G_APPLICATION_IS_LAUNCHER)
 393     {
 394       if (!g_application_impl_attempt_primary (impl, cancellable, error))
 395         {
 396           g_application_impl_destroy (impl);
 397           return NULL;
 398         }
 399
 400       if (impl->primary)
 401         return impl;
 402
 403       /* We didn't make it.  Drop our service-side stuff. */
 404       g_application_impl_stop_primary (impl);
 405
 406       if (flags & G_APPLICATION_IS_SERVICE)
 407         {
 408           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 409                        "Unable to acquire bus name `%s'", appid);
 410           g_application_impl_destroy (impl);
 411
 412           return NULL;
 413         }
 414     }
 415
 416   /* We are non-primary.  Try to get the primary's list of actions.
 417    * This also serves as a mechanism to ensure that the primary exists
 418    * (ie: DBus service files installed correctly, etc).
 419    */
 420   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
 421   if (!g_dbus_action_group_sync (actions, cancellable, error))
 422     {
 423       /* The primary appears not to exist.  Fail the registration. */
 424       g_application_impl_destroy (impl);
 425       g_object_unref (actions);
 426
 427       return NULL;
 428     }
 429
 430   *remote_actions = G_REMOTE_ACTION_GROUP (actions);
 431
 432   return impl;
 433 }
 434
 435 void
 436 g_application_impl_activate (GApplicationImpl *impl,
 437                              GVariant         *platform_data)
 438 {
 439   g_dbus_connection_call (impl->session_bus,
 440                           impl->bus_name,
 441                           impl->object_path,
 442                           "org.gtk.Application",
 443                           "Activate",
 444                           g_variant_new ("(@a{sv})", platform_data),
 445                           NULL, 0, -1, NULL, NULL, NULL);
 446 }
 447
 448 void
 449 g_application_impl_open (GApplicationImpl  *impl,
 450                          GFile            **files,
 451                          gint               n_files,
 452                          const gchar       *hint,
 453                          GVariant          *platform_data)
 454 {
 455   GVariantBuilder builder;
 456   gint i;
 457
 458   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 459   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 460   for (i = 0; i < n_files; i++)
 461     {
 462       gchar *uri = g_file_get_uri (files[i]);
 463       g_variant_builder_add (&builder, "s", uri);
 464       g_free (uri);
 465     }
 466   g_variant_builder_close (&builder);
 467   g_variant_builder_add (&builder, "s", hint);
 468   g_variant_builder_add_value (&builder, platform_data);
 469
 470   g_dbus_connection_call (impl->session_bus,
 471                           impl->bus_name,
 472                           impl->object_path,
 473                           "org.gtk.Application",
 474                           "Open",
 475                           g_variant_builder_end (&builder),
 476                           NULL, 0, -1, NULL, NULL, NULL);
 477 }
 478
 479 static void
 480 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 481                                         const gchar           *sender,
 482                                         const gchar           *object_path,
 483                                         const gchar           *interface_name,
 484                                         const gchar           *method_name,
 485                                         GVariant              *parameters,
 486                                         GDBusMethodInvocation *invocation,
 487                                         gpointer               user_data)
 488 {
 489   const gchar *message;
 490
 491   g_variant_get_child (parameters, 0, "&s", &message);
 492
 493   if (strcmp (method_name, "Print") == 0)
 494     g_print ("%s", message);
 495   else if (strcmp (method_name, "PrintError") == 0)
 496     g_printerr ("%s", message);
 497   else
 498     g_assert_not_reached ();
 499
 500   g_dbus_method_invocation_return_value (invocation, NULL);
 501 }
 502
 503 typedef struct
 504 {
 505   GMainLoop *loop;
 506   int status;
 507 } CommandLineData;
 508
 509 static void
 510 g_application_impl_cmdline_done (GObject      *source,
 511                                  GAsyncResult *result,
 512                                  gpointer      user_data)
 513 {
 514   CommandLineData *data = user_data;
 515   GError *error = NULL;
 516   GVariant *reply;
 517
 518   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 519                                          result, &error);
 520
 521   if (reply != NULL)
 522     {
 523       g_variant_get (reply, "(i)", &data->status);
 524       g_variant_unref (reply);
 525     }
 526
 527   else
 528     {
 529       g_printerr ("%s\n", error->message);
 530       g_error_free (error);
 531       data->status = 1;
 532     }
 533
 534   g_main_loop_quit (data->loop);
 535 }
 536
 537 int
 538 g_application_impl_command_line (GApplicationImpl  *impl,
 539                                  gchar            **arguments,
 540                                  GVariant          *platform_data)
 541 {
 542   const static GDBusInterfaceVTable vtable = {
 543     g_application_impl_cmdline_method_call
 544   };
 545   const gchar *object_path = "/org/gtk/Application/CommandLine";
 546   GMainContext *context;
 547   CommandLineData data;
 548   guint object_id;
 549
 550   context = g_main_context_new ();
 551   data.loop = g_main_loop_new (context, FALSE);
 552   g_main_context_push_thread_default (context);
 553
 554   if (org_gtk_private_CommandLine == NULL)
 555     {
 556       GError *error = NULL;
 557       GDBusNodeInfo *info;
 558
 559       info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
 560       if G_UNLIKELY (info == NULL)
 561         g_error ("%s", error->message);
 562       org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
 563       g_assert (org_gtk_private_CommandLine != NULL);
 564       g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 565       g_dbus_node_info_unref (info);
 566     }
 567
 568   object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
 569                                                  org_gtk_private_CommandLine,
 570                                                  &vtable, &data, NULL, NULL);
 571   /* In theory we should try other paths... */
 572   g_assert (object_id != 0);
 573
 574   g_dbus_connection_call (impl->session_bus,
 575                           impl->bus_name,
 576                           impl->object_path,
 577                           "org.gtk.Application",
 578                           "CommandLine",
 579                           g_variant_new ("(o^aay@a{sv})", object_path,
 580                                          arguments, platform_data),
 581                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 582                           g_application_impl_cmdline_done, &data);
 583
 584   g_main_loop_run (data.loop);
 585
 586   g_main_context_pop_thread_default (context);
 587   g_main_context_unref (context);
 588   g_main_loop_unref (data.loop);
 589
 590   return data.status;
 591 }
 592
 593 void
 594 g_application_impl_flush (GApplicationImpl *impl)
 595 {
 596   if (impl->session_bus)
 597     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 598 }
 599
 600
 601 /* GDBusCommandLine implementation {{{1 */
 602
 603 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 604 static GType g_dbus_command_line_get_type (void);
 605 typedef struct
 606 {
 607   GApplicationCommandLine  parent_instance;
 608   GDBusMethodInvocation   *invocation;
 609
 610   GDBusConnection *connection;
 611   const gchar     *bus_name;
 612   const gchar     *object_path;
 613 } GDBusCommandLine;
 614
 615
 616 G_DEFINE_TYPE (GDBusCommandLine,
 617                g_dbus_command_line,
 618                G_TYPE_APPLICATION_COMMAND_LINE)
 619
 620 static void
 621 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 622                                    const gchar             *message)
 623 {
 624   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 625
 626   g_dbus_connection_call (gdbcl->connection,
 627                           gdbcl->bus_name,
 628                           gdbcl->object_path,
 629                           "org.gtk.private.CommandLine", "Print",
 630                           g_variant_new ("(s)", message),
 631                           NULL, 0, -1, NULL, NULL, NULL);
 632 }
 633
 634 static void
 635 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 636                                       const gchar             *message)
 637 {
 638   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 639
 640   g_dbus_connection_call (gdbcl->connection,
 641                           gdbcl->bus_name,
 642                           gdbcl->object_path,
 643                           "org.gtk.private.CommandLine", "PrintError",
 644                           g_variant_new ("(s)", message),
 645                           NULL, 0, -1, NULL, NULL, NULL);
 646 }
 647
 648 static void
 649 g_dbus_command_line_finalize (GObject *object)
 650 {
 651   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 652   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 653   gint status;
 654
 655   status = g_application_command_line_get_exit_status (cmdline);
 656
 657   g_dbus_method_invocation_return_value (gdbcl->invocation,
 658                                          g_variant_new ("(i)", status));
 659   g_object_unref (gdbcl->invocation);
 660
 661   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 662     ->finalize (object);
 663 }
 664
 665 static void
 666 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 667 {
 668 }
 669
 670 static void
 671 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 672 {
 673   GObjectClass *object_class = G_OBJECT_CLASS (class);
 674
 675   object_class->finalize = g_dbus_command_line_finalize;
 676   class->printerr_literal = g_dbus_command_line_printerr_literal;
 677   class->print_literal = g_dbus_command_line_print_literal;
 678 }
 679
 680 static GApplicationCommandLine *
 681 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 682 {
 683   GDBusCommandLine *gdbcl;
 684   GVariant *args;
 685
 686   args = g_dbus_method_invocation_get_parameters (invocation);
 687
 688   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 689                         "arguments", g_variant_get_child_value (args, 1),
 690                         "platform-data", g_variant_get_child_value (args, 2),
 691                         NULL);
 692   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 693   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 694   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 695   gdbcl->invocation = g_object_ref (invocation);
 696
 697   return G_APPLICATION_COMMAND_LINE (gdbcl);
 698 }
 699
 700 /* Epilogue {{{1 */
 701
 702 /* vim:set foldmethod=marker: */