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 #include "gmenuexporter.h"
  34
  35 #include <string.h>
  36 #include <stdio.h>
  37
  38 #include "gapplicationcommandline.h"
  39 #include "gdbusmethodinvocation.h"
  40
  41 G_GNUC_INTERNAL gboolean
  42 g_dbus_action_group_sync (GDBusActionGroup  *group,
  43                           GCancellable      *cancellable,
  44                           GError           **error);
  45
  46
  47 /* DBus Interface definition {{{1 */
  48 static const gchar org_gtk_Application_xml[] =
  49   "<node>"
  50   "  <interface name='org.gtk.Application'>"
  51   "    <method name='Activate'>"
  52   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  53   "    </method>"
  54   "    <method name='Open'>"
  55   "      <arg type='as' name='uris' direction='in'/>"
  56   "      <arg type='s' name='hint' direction='in'/>"
  57   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  58   "    </method>"
  59   "    <method name='CommandLine'>"
  60   "      <arg type='o' name='path' direction='in'/>"
  61   "      <arg type='aay' name='arguments' direction='in'/>"
  62   "      <arg type='a{sv}' name='platform-data' direction='in'/>"
  63   "      <arg type='i' name='exit-status' direction='out'/>"
  64   "    </method>"
  65   "    <property name='AppMenu' type='ao' access='read'/>"
  66   "    <property name='MenuBar' type='ao' access='read'/>"
  67   "  </interface>"
  68   "</node>";
  69
  70 static GDBusInterfaceInfo *org_gtk_Application;
  71
  72 static const gchar org_gtk_private_CommandLine_xml[] =
  73   "<node>"
  74   "  <interface name='org.gtk.private.CommandLine'>"
  75   "    <method name='Print'>"
  76   "      <arg type='s' name='message' direction='in'/>"
  77   "    </method>"
  78   "    <method name='PrintError'>"
  79   "      <arg type='s' name='message' direction='in'/>"
  80   "    </method>"
  81   "  </interface>"
  82   "</node>";
  83
  84 static GDBusInterfaceInfo *org_gtk_private_CommandLine;
  85
  86 /* GApplication implementation {{{1 */
  87 struct _GApplicationImpl
  88 {
  89   GDBusConnection *session_bus;
  90   const gchar     *bus_name;
  91
  92   gchar           *object_path;
  93   guint            object_id;
  94   guint            actions_id;
  95
  96   gchar           *app_menu_path;
  97   guint            app_menu_id;
  98
  99   gchar           *menubar_path;
 100   guint            menubar_id;
 101
 102   gboolean         properties_live;
 103   gboolean         primary;
 104   gpointer         app;
 105 };
 106
 107
 108 static GApplicationCommandLine *
 109 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 110
 111
 112 static void
 113 g_application_impl_method_call (GDBusConnection       *connection,
 114                                 const gchar           *sender,
 115                                 const gchar           *object_path,
 116                                 const gchar           *interface_name,
 117                                 const gchar           *method_name,
 118                                 GVariant              *parameters,
 119                                 GDBusMethodInvocation *invocation,
 120                                 gpointer               user_data)
 121 {
 122   GApplicationImpl *impl = user_data;
 123   GApplicationClass *class;
 124
 125   class = G_APPLICATION_GET_CLASS (impl->app);
 126
 127   if (strcmp (method_name, "Activate") == 0)
 128     {
 129       GVariant *platform_data;
 130
 131       g_variant_get (parameters, "(@a{sv})", &platform_data);
 132       class->before_emit (impl->app, platform_data);
 133       g_signal_emit_by_name (impl->app, "activate");
 134       class->after_emit (impl->app, platform_data);
 135       g_variant_unref (platform_data);
 136
 137       g_dbus_method_invocation_return_value (invocation, NULL);
 138     }
 139
 140   else if (strcmp (method_name, "Open") == 0)
 141     {
 142       GVariant *platform_data;
 143       const gchar *hint;
 144       GVariant *array;
 145       GFile **files;
 146       gint n, i;
 147
 148       g_variant_get (parameters, "(@ass@a{sv})",
 149                      &array, &hint, &platform_data);
 150
 151       n = g_variant_n_children (array);
 152       files = g_new (GFile *, n + 1);
 153
 154       for (i = 0; i < n; i++)
 155         {
 156           const gchar *uri;
 157
 158           g_variant_get_child (array, i, "&s", &uri);
 159           files[i] = g_file_new_for_uri (uri);
 160         }
 161       g_variant_unref (array);
 162       files[n] = NULL;
 163
 164       class->before_emit (impl->app, platform_data);
 165       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 166       class->after_emit (impl->app, platform_data);
 167
 168       g_variant_unref (platform_data);
 169
 170       for (i = 0; i < n; i++)
 171         g_object_unref (files[i]);
 172       g_free (files);
 173
 174       g_dbus_method_invocation_return_value (invocation, NULL);
 175     }
 176
 177   else if (strcmp (method_name, "CommandLine") == 0)
 178     {
 179       GApplicationCommandLine *cmdline;
 180       GVariant *platform_data;
 181       int status;
 182
 183       cmdline = g_dbus_command_line_new (invocation);
 184       platform_data = g_variant_get_child_value (parameters, 2);
 185       class->before_emit (impl->app, platform_data);
 186       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 187       g_application_command_line_set_exit_status (cmdline, status);
 188       class->after_emit (impl->app, platform_data);
 189       g_variant_unref (platform_data);
 190       g_object_unref (cmdline);
 191     }
 192   else
 193     g_assert_not_reached ();
 194 }
 195
 196 static GVariant *
 197 g_application_impl_get_property (GDBusConnection  *connection,
 198                                  const gchar      *sender,
 199                                  const gchar      *object_path,
 200                                  const gchar      *interface_name,
 201                                  const gchar      *property_name,
 202                                  GError          **error,
 203                                  gpointer          user_data)
 204 {
 205   GApplicationImpl *impl = user_data;
 206   GVariantBuilder builder;
 207
 208   /* We use this boolean to detect if the properties have ever been
 209    * queried before.  If they have not been queried, then there is no
 210    * point emitting change signals since nobody is watching anyway.
 211    */
 212   impl->properties_live = TRUE;
 213
 214   g_variant_builder_init (&builder, G_VARIANT_TYPE_OBJECT_PATH_ARRAY);
 215
 216   if (g_str_equal (property_name, "AppMenu"))
 217     {
 218       if (impl->app_menu_path != NULL)
 219         g_variant_builder_add (&builder, "o", impl->app_menu_path);
 220     }
 221
 222   else if (g_str_equal (property_name, "MenuBar"))
 223     {
 224       if (impl->menubar_path != NULL)
 225         g_variant_builder_add (&builder, "o", impl->menubar_path);
 226     }
 227
 228   else
 229     g_assert_not_reached ();
 230
 231   return g_variant_builder_end (&builder);
 232 }
 233
 234 static gchar *
 235 application_path_from_appid (const gchar *appid)
 236 {
 237   gchar *appid_path, *iter;
 238
 239   appid_path = g_strconcat ("/", appid, NULL);
 240   for (iter = appid_path; *iter; iter++)
 241     {
 242       if (*iter == '.')
 243         *iter = '/';
 244
 245       if (*iter == '-')
 246         *iter = '_';
 247     }
 248
 249   return appid_path;
 250 }
 251
 252 static void
 253 g_application_impl_publish_menu (GApplicationImpl  *impl,
 254                                  const gchar       *type,
 255                                  GMenuModel        *model,
 256                                  guint             *id,
 257                                  gchar            **path)
 258 {
 259   gint i;
 260
 261   /* unexport any existing menu */
 262   if (*id)
 263     {
 264       g_dbus_connection_unexport_menu_model (impl->session_bus, *id);
 265       g_free (*path);
 266       *path = NULL;
 267       *id = 0;
 268     }
 269
 270   /* export the new menu, if there is one */
 271   if (model != NULL)
 272     {
 273       /* try getting the preferred name */
 274       *path = g_strconcat (impl->object_path, "/menus/", type, NULL);
 275       *id = g_dbus_connection_export_menu_model (impl->session_bus, *path, model, NULL);
 276
 277       /* keep trying until we get a working name... */
 278       for (i = 0; *id == 0; i++)
 279         {
 280           g_free (*path);
 281           *path = g_strdup_printf ("%s/menus/%s%d", impl->object_path, type, i);
 282           *id = g_dbus_connection_export_menu_model (impl->session_bus, *path, model, NULL);
 283         }
 284     }
 285
 286   /* notify for changes, if needed */
 287   if (impl->properties_live)
 288     {
 289       GVariantBuilder builder;
 290
 291       g_variant_builder_init (&builder, G_VARIANT_TYPE_VARDICT);
 292       g_variant_builder_add (&builder, "{sv}", type, g_variant_new_objv ((const gchar **) path, *path != NULL));
 293       g_dbus_connection_emit_signal (impl->session_bus, NULL, impl->object_path,
 294                                      "org.freedesktop.DBus.Properties", "PropertiesChanged",
 295                                      g_variant_new ("(sa{sv}as)", "org.gtk.Actions", &builder, NULL), NULL);
 296     }
 297 }
 298
 299 static void
 300 g_application_impl_app_menu_changed (GObject    *source,
 301                                      GParamSpec *pspec,
 302                                      gpointer    user_data)
 303 {
 304   GApplicationImpl *impl = user_data;
 305
 306   g_assert (source == impl->app);
 307
 308   g_application_impl_publish_menu (impl, "AppMenu", g_application_get_app_menu (impl->app),
 309                                    &impl->app_menu_id, &impl->app_menu_path);
 310 }
 311
 312 static void
 313 g_application_impl_menubar_changed (GObject    *source,
 314                                     GParamSpec *pspec,
 315                                     gpointer    user_data)
 316 {
 317   GApplicationImpl *impl = user_data;
 318
 319   g_assert (source == impl->app);
 320
 321   g_application_impl_publish_menu (impl, "MenuBar", g_application_get_menubar (impl->app),
 322                                    &impl->menubar_id, &impl->menubar_path);
 323 }
 324
 325 /* Attempt to become the primary instance.
 326  *
 327  * Returns %TRUE if everything went OK, regardless of if we became the
 328  * primary instance or not.  %FALSE is reserved for when something went
 329  * seriously wrong (and @error will be set too, in that case).
 330  *
 331  * After a %TRUE return, impl->primary will be TRUE if we were
 332  * successful.
 333  */
 334 static gboolean
 335 g_application_impl_attempt_primary (GApplicationImpl  *impl,
 336                                     GCancellable      *cancellable,
 337                                     GError           **error)
 338 {
 339   const static GDBusInterfaceVTable vtable = {
 340     g_application_impl_method_call,
 341     g_application_impl_get_property
 342   };
 343   GVariant *reply;
 344   guint32 rval;
 345
 346   if (org_gtk_Application == NULL)
 347     {
 348       GError *error = NULL;
 349       GDBusNodeInfo *info;
 350
 351       info = g_dbus_node_info_new_for_xml (org_gtk_Application_xml, &error);
 352       if G_UNLIKELY (info == NULL)
 353         g_error ("%s", error->message);
 354       org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
 355       g_assert (org_gtk_Application != NULL);
 356       g_dbus_interface_info_ref (org_gtk_Application);
 357       g_dbus_node_info_unref (info);
 358     }
 359
 360   /* We could possibly have been D-Bus activated as a result of incoming
 361    * requests on either the application or actiongroup interfaces.
 362    * Because of how GDBus dispatches messages, we need to ensure that
 363    * both of those things are registered before we attempt to request
 364    * our name.
 365    *
 366    * The action group need not be populated yet, as long as it happens
 367    * before we return to the mainloop.  The reason for that is because
 368    * GDBus does the check to make sure the object exists from the worker
 369    * thread but doesn't actually dispatch the action invocation until we
 370    * hit the mainloop in this thread.  There is also no danger of
 371    * receiving 'activate' or 'open' signals until after 'startup' runs,
 372    * for the same reason.
 373    */
 374   impl->object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
 375                                                        org_gtk_Application, &vtable, impl, NULL, error);
 376
 377   if (impl->object_id == 0)
 378     return FALSE;
 379
 380   impl->actions_id = g_dbus_connection_export_action_group (impl->session_bus, impl->object_path, impl->app, error);
 381
 382   if (impl->actions_id == 0)
 383     return FALSE;
 384
 385   /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 386   reply = g_dbus_connection_call_sync (impl->session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",
 387                                        "org.freedesktop.DBus", "RequestName",
 388                                        g_variant_new ("(su)", impl->bus_name, 0x4), G_VARIANT_TYPE ("(u)"),
 389                                        0, -1, cancellable, error);
 390
 391   if (reply == NULL)
 392     return FALSE;
 393
 394   g_variant_get (reply, "(u)", &rval);
 395   g_variant_unref (reply);
 396
 397   /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 398   impl->primary = (rval != 3);
 399
 400   if (impl->primary)
 401     {
 402       g_signal_connect (impl->app, "notify::app-menu", G_CALLBACK (g_application_impl_app_menu_changed), impl);
 403       g_signal_connect (impl->app, "notify::menubar", G_CALLBACK (g_application_impl_menubar_changed), impl);
 404       g_application_impl_app_menu_changed (impl->app, NULL, impl);
 405       g_application_impl_menubar_changed (impl->app, NULL, impl);
 406     }
 407
 408   return TRUE;
 409 }
 410
 411 /* Stop doing the things that the primary instance does.
 412  *
 413  * This should be called if attempting to become the primary instance
 414  * failed (in order to clean up any partial success) and should also
 415  * be called when freeing the GApplication.
 416  *
 417  * It is safe to call this multiple times.
 418  */
 419 static void
 420 g_application_impl_stop_primary (GApplicationImpl *impl)
 421 {
 422   if (impl->object_id)
 423     {
 424       g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
 425       impl->object_id = 0;
 426     }
 427
 428   if (impl->actions_id)
 429     {
 430       g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
 431       impl->actions_id = 0;
 432     }
 433
 434   if (impl->primary)
 435     {
 436       g_signal_handlers_disconnect_by_func (impl->app, g_application_impl_app_menu_changed, impl);
 437       g_signal_handlers_disconnect_by_func (impl->app, g_application_impl_menubar_changed, impl);
 438
 439       g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
 440                               "/org/freedesktop/DBus", "org.freedesktop.DBus",
 441                               "ReleaseName", g_variant_new ("(s)", impl->bus_name),
 442                               NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 443       impl->primary = FALSE;
 444     }
 445
 446   if (impl->app_menu_id)
 447     {
 448       g_dbus_connection_unexport_menu_model (impl->session_bus, impl->app_menu_id);
 449       g_free (impl->app_menu_path);
 450       impl->app_menu_path = NULL;
 451       impl->app_menu_id = 0;
 452     }
 453
 454   if (impl->menubar_id)
 455     {
 456       g_dbus_connection_unexport_menu_model (impl->session_bus, impl->menubar_id);
 457       g_free (impl->menubar_path);
 458       impl->menubar_path = NULL;
 459       impl->menubar_id = 0;
 460     }
 461 }
 462
 463 void
 464 g_application_impl_destroy (GApplicationImpl *impl)
 465 {
 466   g_application_impl_stop_primary (impl);
 467
 468   if (impl->session_bus)
 469     g_object_unref (impl->session_bus);
 470
 471   g_free (impl->object_path);
 472
 473   g_slice_free (GApplicationImpl, impl);
 474 }
 475
 476 GApplicationImpl *
 477 g_application_impl_register (GApplication        *application,
 478                              const gchar         *appid,
 479                              GApplicationFlags    flags,
 480                              GRemoteActionGroup **remote_actions,
 481                              GCancellable        *cancellable,
 482                              GError             **error)
 483 {
 484   GDBusActionGroup *actions;
 485   GApplicationImpl *impl;
 486
 487   impl = g_slice_new0 (GApplicationImpl);
 488
 489   impl->app = application;
 490   impl->bus_name = appid;
 491
 492   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 493
 494   if (impl->session_bus == NULL)
 495     {
 496       /* If we can't connect to the session bus, proceed as a normal
 497        * non-unique application.
 498        */
 499       *remote_actions = NULL;
 500       return impl;
 501     }
 502
 503   impl->object_path = application_path_from_appid (appid);
 504
 505   /* Only try to be the primary instance if
 506    * G_APPLICATION_IS_LAUNCHER was not specified.
 507    */
 508   if (~flags & G_APPLICATION_IS_LAUNCHER)
 509     {
 510       if (!g_application_impl_attempt_primary (impl, cancellable, error))
 511         {
 512           g_application_impl_destroy (impl);
 513           return NULL;
 514         }
 515
 516       if (impl->primary)
 517         return impl;
 518
 519       /* We didn't make it.  Drop our service-side stuff. */
 520       g_application_impl_stop_primary (impl);
 521
 522       if (flags & G_APPLICATION_IS_SERVICE)
 523         {
 524           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 525                        "Unable to acquire bus name `%s'", appid);
 526           g_application_impl_destroy (impl);
 527
 528           return NULL;
 529         }
 530     }
 531
 532   /* We are non-primary.  Try to get the primary's list of actions.
 533    * This also serves as a mechanism to ensure that the primary exists
 534    * (ie: DBus service files installed correctly, etc).
 535    */
 536   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
 537   if (!g_dbus_action_group_sync (actions, cancellable, error))
 538     {
 539       /* The primary appears not to exist.  Fail the registration. */
 540       g_application_impl_destroy (impl);
 541       g_object_unref (actions);
 542
 543       return NULL;
 544     }
 545
 546   *remote_actions = G_REMOTE_ACTION_GROUP (actions);
 547
 548   return impl;
 549 }
 550
 551 void
 552 g_application_impl_activate (GApplicationImpl *impl,
 553                              GVariant         *platform_data)
 554 {
 555   g_dbus_connection_call (impl->session_bus,
 556                           impl->bus_name,
 557                           impl->object_path,
 558                           "org.gtk.Application",
 559                           "Activate",
 560                           g_variant_new ("(@a{sv})", platform_data),
 561                           NULL, 0, -1, NULL, NULL, NULL);
 562 }
 563
 564 void
 565 g_application_impl_open (GApplicationImpl  *impl,
 566                          GFile            **files,
 567                          gint               n_files,
 568                          const gchar       *hint,
 569                          GVariant          *platform_data)
 570 {
 571   GVariantBuilder builder;
 572   gint i;
 573
 574   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 575   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 576   for (i = 0; i < n_files; i++)
 577     {
 578       gchar *uri = g_file_get_uri (files[i]);
 579       g_variant_builder_add (&builder, "s", uri);
 580       g_free (uri);
 581     }
 582   g_variant_builder_close (&builder);
 583   g_variant_builder_add (&builder, "s", hint);
 584   g_variant_builder_add_value (&builder, platform_data);
 585
 586   g_dbus_connection_call (impl->session_bus,
 587                           impl->bus_name,
 588                           impl->object_path,
 589                           "org.gtk.Application",
 590                           "Open",
 591                           g_variant_builder_end (&builder),
 592                           NULL, 0, -1, NULL, NULL, NULL);
 593 }
 594
 595 static void
 596 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 597                                         const gchar           *sender,
 598                                         const gchar           *object_path,
 599                                         const gchar           *interface_name,
 600                                         const gchar           *method_name,
 601                                         GVariant              *parameters,
 602                                         GDBusMethodInvocation *invocation,
 603                                         gpointer               user_data)
 604 {
 605   const gchar *message;
 606
 607   g_variant_get_child (parameters, 0, "&s", &message);
 608
 609   if (strcmp (method_name, "Print") == 0)
 610     g_print ("%s", message);
 611   else if (strcmp (method_name, "PrintError") == 0)
 612     g_printerr ("%s", message);
 613   else
 614     g_assert_not_reached ();
 615
 616   g_dbus_method_invocation_return_value (invocation, NULL);
 617 }
 618
 619 typedef struct
 620 {
 621   GMainLoop *loop;
 622   int status;
 623 } CommandLineData;
 624
 625 static void
 626 g_application_impl_cmdline_done (GObject      *source,
 627                                  GAsyncResult *result,
 628                                  gpointer      user_data)
 629 {
 630   CommandLineData *data = user_data;
 631   GError *error = NULL;
 632   GVariant *reply;
 633
 634   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 635                                          result, &error);
 636
 637   if (reply != NULL)
 638     {
 639       g_variant_get (reply, "(i)", &data->status);
 640       g_variant_unref (reply);
 641     }
 642
 643   else
 644     {
 645       g_printerr ("%s\n", error->message);
 646       g_error_free (error);
 647       data->status = 1;
 648     }
 649
 650   g_main_loop_quit (data->loop);
 651 }
 652
 653 int
 654 g_application_impl_command_line (GApplicationImpl  *impl,
 655                                  gchar            **arguments,
 656                                  GVariant          *platform_data)
 657 {
 658   const static GDBusInterfaceVTable vtable = {
 659     g_application_impl_cmdline_method_call
 660   };
 661   const gchar *object_path = "/org/gtk/Application/CommandLine";
 662   GMainContext *context;
 663   CommandLineData data;
 664   guint object_id;
 665
 666   context = g_main_context_new ();
 667   data.loop = g_main_loop_new (context, FALSE);
 668   g_main_context_push_thread_default (context);
 669
 670   if (org_gtk_private_CommandLine == NULL)
 671     {
 672       GError *error = NULL;
 673       GDBusNodeInfo *info;
 674
 675       info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
 676       if G_UNLIKELY (info == NULL)
 677         g_error ("%s", error->message);
 678       org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
 679       g_assert (org_gtk_private_CommandLine != NULL);
 680       g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 681       g_dbus_node_info_unref (info);
 682     }
 683
 684   object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
 685                                                  org_gtk_private_CommandLine,
 686                                                  &vtable, &data, NULL, NULL);
 687   /* In theory we should try other paths... */
 688   g_assert (object_id != 0);
 689
 690   g_dbus_connection_call (impl->session_bus,
 691                           impl->bus_name,
 692                           impl->object_path,
 693                           "org.gtk.Application",
 694                           "CommandLine",
 695                           g_variant_new ("(o^aay@a{sv})", object_path,
 696                                          arguments, platform_data),
 697                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 698                           g_application_impl_cmdline_done, &data);
 699
 700   g_main_loop_run (data.loop);
 701
 702   g_main_context_pop_thread_default (context);
 703   g_main_context_unref (context);
 704   g_main_loop_unref (data.loop);
 705
 706   return data.status;
 707 }
 708
 709 void
 710 g_application_impl_flush (GApplicationImpl *impl)
 711 {
 712   if (impl->session_bus)
 713     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 714 }
 715
 716
 717 /* GDBusCommandLine implementation {{{1 */
 718
 719 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 720 static GType g_dbus_command_line_get_type (void);
 721 typedef struct
 722 {
 723   GApplicationCommandLine  parent_instance;
 724   GDBusMethodInvocation   *invocation;
 725
 726   GDBusConnection *connection;
 727   const gchar     *bus_name;
 728   const gchar     *object_path;
 729 } GDBusCommandLine;
 730
 731
 732 G_DEFINE_TYPE (GDBusCommandLine,
 733                g_dbus_command_line,
 734                G_TYPE_APPLICATION_COMMAND_LINE)
 735
 736 static void
 737 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 738                                    const gchar             *message)
 739 {
 740   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 741
 742   g_dbus_connection_call (gdbcl->connection,
 743                           gdbcl->bus_name,
 744                           gdbcl->object_path,
 745                           "org.gtk.private.CommandLine", "Print",
 746                           g_variant_new ("(s)", message),
 747                           NULL, 0, -1, NULL, NULL, NULL);
 748 }
 749
 750 static void
 751 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 752                                       const gchar             *message)
 753 {
 754   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 755
 756   g_dbus_connection_call (gdbcl->connection,
 757                           gdbcl->bus_name,
 758                           gdbcl->object_path,
 759                           "org.gtk.private.CommandLine", "PrintError",
 760                           g_variant_new ("(s)", message),
 761                           NULL, 0, -1, NULL, NULL, NULL);
 762 }
 763
 764 static void
 765 g_dbus_command_line_finalize (GObject *object)
 766 {
 767   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 768   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 769   gint status;
 770
 771   status = g_application_command_line_get_exit_status (cmdline);
 772
 773   g_dbus_method_invocation_return_value (gdbcl->invocation,
 774                                          g_variant_new ("(i)", status));
 775   g_object_unref (gdbcl->invocation);
 776
 777   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 778     ->finalize (object);
 779 }
 780
 781 static void
 782 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 783 {
 784 }
 785
 786 static void
 787 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 788 {
 789   GObjectClass *object_class = G_OBJECT_CLASS (class);
 790
 791   object_class->finalize = g_dbus_command_line_finalize;
 792   class->printerr_literal = g_dbus_command_line_printerr_literal;
 793   class->print_literal = g_dbus_command_line_print_literal;
 794 }
 795
 796 static GApplicationCommandLine *
 797 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 798 {
 799   GDBusCommandLine *gdbcl;
 800   GVariant *args;
 801
 802   args = g_dbus_method_invocation_get_parameters (invocation);
 803
 804   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 805                         "arguments", g_variant_get_child_value (args, 1),
 806                         "platform-data", g_variant_get_child_value (args, 2),
 807                         NULL);
 808   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 809   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 810   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 811   gdbcl->invocation = g_object_ref (invocation);
 812
 813   return G_APPLICATION_COMMAND_LINE (gdbcl);
 814 }
 815
 816 /* Epilogue {{{1 */
 817
 818 /* vim:set foldmethod=marker: */