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 "gapplication.h"
  27 #include "gfile.h"
  28 #include "gdbusconnection.h"
  29 #include "gdbusintrospection.h"
  30 #include "gdbuserror.h"
  31
  32 #include <string.h>
  33 #include <stdio.h>
  34
  35 #include "gapplicationcommandline.h"
  36 #include "gdbusmethodinvocation.h"
  37
  38 /* DBus Interface definition {{{1 */
  39 static const GDBusArgInfo platform_data_arg = { -1, (gchar *) "platform_data", (gchar *) "a{sv}" };
  40
  41 static const GDBusArgInfo open_uris_arg = { -1, (gchar *) "uris", (gchar *) "as" };
  42 static const GDBusArgInfo open_hint_arg = { -1, (gchar *) "hint", (gchar *) "s" };
  43
  44 static const GDBusArgInfo invoke_action_name_arg = { -1, (gchar *) "name", (gchar *) "s" };
  45 static const GDBusArgInfo invoke_action_args_arg = { -1, (gchar *) "args", (gchar *) "v" };
  46
  47 static const GDBusArgInfo cmdline_path_arg = { -1, (gchar *) "path", (gchar *) "o" };
  48 static const GDBusArgInfo cmdline_arguments_arg = { -1, (gchar *) "arguments", (gchar *) "aay" };
  49 static const GDBusArgInfo cmdline_exit_status_arg = { -1, (gchar *) "exit_status", (gchar *) "i" };
  50
  51 static const GDBusArgInfo *activate_in[] = { &platform_data_arg, NULL };
  52 static const GDBusArgInfo *activate_out[] = { NULL };
  53
  54 static const GDBusArgInfo *open_in[] = { &open_uris_arg, &open_hint_arg, &platform_data_arg, NULL };
  55 static const GDBusArgInfo *open_out[] = { NULL };
  56
  57 static const GDBusArgInfo *cmdline_in[] = { &cmdline_path_arg, &cmdline_arguments_arg, &platform_data_arg, NULL };
  58 static const GDBusArgInfo *cmdline_out[] = { &cmdline_exit_status_arg, NULL };
  59
  60 static const GDBusMethodInfo activate_method = {
  61   -1, (gchar *) "Activate",
  62   (GDBusArgInfo **) activate_in,
  63   (GDBusArgInfo **) activate_out
  64 };
  65
  66 static const GDBusMethodInfo open_method = {
  67   -1, (gchar *) "Open",
  68   (GDBusArgInfo **) open_in,
  69   (GDBusArgInfo **) open_out
  70 };
  71
  72 static const GDBusMethodInfo command_line_method = {
  73   -1, (gchar *) "CommandLine",
  74   (GDBusArgInfo **) cmdline_in,
  75   (GDBusArgInfo **) cmdline_out
  76 };
  77
  78 static const GDBusMethodInfo *application_methods[] = {
  79   &activate_method, &open_method, &command_line_method, NULL
  80 };
  81
  82 const GDBusInterfaceInfo org_gtk_Application = {
  83   -1, (gchar *) "org.gtk.Application",
  84   (GDBusMethodInfo **) application_methods
  85 };
  86
  87 static const GDBusArgInfo message_arg = { -1, (gchar *) "message", (gchar *) "s" };
  88 static const GDBusArgInfo *print_in[] = { &message_arg, NULL };
  89 static const GDBusArgInfo *print_out[] = { NULL };
  90
  91 static const GDBusMethodInfo stdout_method = {
  92   -1, (gchar *) "Print",
  93   (GDBusArgInfo **) print_in,
  94   (GDBusArgInfo **) print_out
  95 };
  96
  97 static const GDBusMethodInfo stderr_method = {
  98   -1, (gchar *) "PrintError",
  99   (GDBusArgInfo **) print_in,
 100   (GDBusArgInfo **) print_out
 101 };
 102
 103 static const GDBusMethodInfo *cmdline_methods[] = {
 104   &stdout_method, &stderr_method, NULL
 105 };
 106
 107 const GDBusInterfaceInfo org_gtk_private_Cmdline = {
 108   -1, (gchar *) "org.gtk.private.CommandLine",
 109   (GDBusMethodInfo **) cmdline_methods
 110 };
 111
 112 /* GApplication implementation {{{1 */
 113 struct _GApplicationImpl
 114 {
 115   GDBusConnection *session_bus;
 116   const gchar     *bus_name;
 117   gchar           *object_path;
 118   guint            object_id;
 119   gboolean         actions_exported;
 120   gpointer         app;
 121
 122   GHashTable      *actions;
 123   guint            signal_id;
 124 };
 125
 126
 127 static GApplicationCommandLine *
 128 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 129
 130
 131 static void
 132 g_application_impl_method_call (GDBusConnection       *connection,
 133                                 const gchar           *sender,
 134                                 const gchar           *object_path,
 135                                 const gchar           *interface_name,
 136                                 const gchar           *method_name,
 137                                 GVariant              *parameters,
 138                                 GDBusMethodInvocation *invocation,
 139                                 gpointer               user_data)
 140 {
 141   GApplicationImpl *impl = user_data;
 142   GApplicationClass *class;
 143
 144   class = G_APPLICATION_GET_CLASS (impl->app);
 145
 146   if (strcmp (method_name, "Activate") == 0)
 147     {
 148       GVariant *platform_data;
 149
 150       g_variant_get (parameters, "(@a{sv})", &platform_data);
 151       class->before_emit (impl->app, platform_data);
 152       g_signal_emit_by_name (impl->app, "activate");
 153       class->after_emit (impl->app, platform_data);
 154       g_variant_unref (platform_data);
 155
 156       g_dbus_method_invocation_return_value (invocation, NULL);
 157     }
 158
 159   else if (strcmp (method_name, "Open") == 0)
 160     {
 161       GVariant *platform_data;
 162       const gchar *hint;
 163       GVariant *array;
 164       GFile **files;
 165       gint n, i;
 166
 167       g_variant_get (parameters, "(@ass@a{sv})",
 168                      &array, &hint, &platform_data);
 169
 170       n = g_variant_n_children (array);
 171       files = g_new (GFile *, n + 1);
 172
 173       for (i = 0; i < n; i++)
 174         {
 175           const gchar *uri;
 176
 177           g_variant_get_child (array, i, "&s", &uri);
 178           files[i] = g_file_new_for_uri (uri);
 179         }
 180       g_variant_unref (array);
 181       files[n] = NULL;
 182
 183       class->before_emit (impl->app, platform_data);
 184       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 185       class->after_emit (impl->app, platform_data);
 186
 187       g_variant_unref (platform_data);
 188
 189       for (i = 0; i < n; i++)
 190         g_object_unref (files[i]);
 191       g_free (files);
 192
 193       g_dbus_method_invocation_return_value (invocation, NULL);
 194     }
 195
 196   else if (strcmp (method_name, "CommandLine") == 0)
 197     {
 198       GApplicationCommandLine *cmdline;
 199       GVariant *platform_data;
 200       int status;
 201
 202       cmdline = g_dbus_command_line_new (invocation);
 203       platform_data = g_variant_get_child_value (parameters, 2);
 204       class->before_emit (impl->app, platform_data);
 205       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 206       g_application_command_line_set_exit_status (cmdline, status);
 207       class->after_emit (impl->app, platform_data);
 208       g_variant_unref (platform_data);
 209       g_object_unref (cmdline);
 210     }
 211   else
 212     g_assert_not_reached ();
 213 }
 214
 215 static gchar *
 216 application_path_from_appid (const gchar *appid)
 217 {
 218   gchar *appid_path, *iter;
 219
 220   appid_path = g_strconcat ("/", appid, NULL);
 221   for (iter = appid_path; *iter; iter++)
 222     {
 223       if (*iter == '.')
 224         *iter = '/';
 225
 226       if (*iter == '-')
 227         *iter = '_';
 228     }
 229
 230   return appid_path;
 231 }
 232
 233 void
 234 g_application_impl_destroy (GApplicationImpl *impl)
 235 {
 236   if (impl->session_bus)
 237     {
 238       if (impl->object_id)
 239         g_dbus_connection_unregister_object (impl->session_bus,
 240                                              impl->object_id);
 241       if (impl->actions_exported)
 242         g_action_group_exporter_stop (impl->app);
 243
 244       g_dbus_connection_call (impl->session_bus,
 245                               "org.freedesktop.DBus",
 246                               "/org/freedesktop/DBus",
 247                               "org.freedesktop.DBus",
 248                               "ReleaseName",
 249                               g_variant_new ("(s)",
 250                                              impl->bus_name),
 251                               NULL,
 252                               G_DBUS_CALL_FLAGS_NONE,
 253                               -1, NULL, NULL, NULL);
 254
 255       g_object_unref (impl->session_bus);
 256       g_free (impl->object_path);
 257     }
 258   else
 259     {
 260       g_assert (impl->object_path == NULL);
 261       g_assert (impl->object_id == 0);
 262     }
 263
 264   g_slice_free (GApplicationImpl, impl);
 265 }
 266
 267 static void
 268 unwrap_fake_maybe (GVariant **value)
 269 {
 270   GVariant *tmp;
 271
 272   if (g_variant_n_children (*value))
 273     g_variant_get_child (*value, 0, "v", &tmp);
 274   else
 275     tmp = NULL;
 276
 277   g_variant_unref (*value);
 278   *value = tmp;
 279 }
 280
 281 static RemoteActionInfo *
 282 remote_action_info_new_from_iter (GVariantIter *iter)
 283 {
 284   RemoteActionInfo *info;
 285   GVariant *param_type;
 286   gboolean enabled;
 287   GVariant *state;
 288   gchar *name;
 289
 290   if (!g_variant_iter_next (iter, "(s@avb@av)", &name,
 291                             &param_type, &enabled, &state))
 292     return NULL;
 293
 294   unwrap_fake_maybe (&param_type);
 295   unwrap_fake_maybe (&state);
 296
 297   info = g_slice_new (RemoteActionInfo);
 298   info->name = name;
 299   info->enabled = enabled;
 300   info->state = state;
 301
 302   if (param_type != NULL)
 303     {
 304       info->parameter_type = g_variant_type_copy (
 305                                g_variant_type_element (
 306                                  g_variant_get_type (param_type)));
 307       g_variant_unref (param_type);
 308     }
 309   else
 310     info->parameter_type = NULL;
 311
 312   return info;
 313 }
 314
 315 static void
 316 g_application_impl_action_signal (GDBusConnection *connection,
 317                                   const gchar     *sender_name,
 318                                   const gchar     *object_path,
 319                                   const gchar     *interface_name,
 320                                   const gchar     *signal_name,
 321                                   GVariant        *parameters,
 322                                   gpointer         user_data)
 323 {
 324   GApplicationImpl *impl = user_data;
 325   GActionGroup *action_group;
 326
 327   action_group = G_ACTION_GROUP (impl->app);
 328
 329   if (strcmp (signal_name, "Added") == 0 &&
 330       g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(a(savbav))")))
 331     {
 332       RemoteActionInfo *info;
 333       GVariantIter *iter;
 334
 335       g_variant_get_child (parameters, 0, "a(savbav)", &iter);
 336
 337       while ((info = remote_action_info_new_from_iter (iter)))
 338         {
 339           g_hash_table_replace (impl->actions, info->name, info);
 340           g_action_group_action_added (action_group, info->name);
 341         }
 342
 343       g_variant_iter_free (iter);
 344     }
 345
 346   else if (strcmp (signal_name, "Removed") == 0 &&
 347            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(as)")))
 348     {
 349       GVariantIter *iter;
 350       const gchar *name;
 351
 352       g_variant_get_child (parameters, 0, "as", &iter);
 353       while (g_variant_iter_next (iter, "&s", &name))
 354         if (g_hash_table_remove (impl->actions, name))
 355           g_action_group_action_removed (action_group, name);
 356       g_variant_iter_free (iter);
 357     }
 358
 359   else if (strcmp (signal_name, "EnabledChanged") == 0 &&
 360            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sb)")))
 361     {
 362       RemoteActionInfo *info;
 363       const gchar *name;
 364       gboolean enabled;
 365
 366       g_variant_get (parameters, "(&sb)", &name, &enabled);
 367       info = g_hash_table_lookup (impl->actions, name);
 368
 369       if (info && enabled != info->enabled)
 370         {
 371           info->enabled = enabled;
 372           g_action_group_action_enabled_changed (action_group,
 373                                                  info->name,
 374                                                  enabled);
 375         }
 376     }
 377
 378   else if (strcmp (signal_name, "StateChanged") == 0 &&
 379            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sv)")))
 380     {
 381       RemoteActionInfo *info;
 382       const gchar *name;
 383       GVariant *state;
 384
 385       g_variant_get (parameters, "(&sv)", &name, &state);
 386       info = g_hash_table_lookup (impl->actions, name);
 387
 388       if (info && info->state &&
 389           g_variant_is_of_type (state, g_variant_get_type (info->state)) &&
 390           !g_variant_equal (state, info->state))
 391         {
 392           g_variant_unref (info->state);
 393           info->state = g_variant_ref (state);
 394           g_action_group_action_state_changed (action_group,
 395                                                info->name,
 396                                                state);
 397         }
 398       g_variant_unref (state);
 399     }
 400 }
 401
 402 GApplicationImpl *
 403 g_application_impl_register (GApplication       *application,
 404                              const gchar        *appid,
 405                              GApplicationFlags   flags,
 406                              GHashTable        **remote_actions,
 407                              GCancellable       *cancellable,
 408                              GError            **error)
 409 {
 410   const static GDBusInterfaceVTable vtable = {
 411     g_application_impl_method_call
 412   };
 413   GApplicationImpl *impl;
 414   GVariant *reply;
 415   guint32 rval;
 416
 417   impl = g_slice_new0 (GApplicationImpl);
 418
 419   impl->app = application;
 420   impl->bus_name = appid;
 421
 422   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 423
 424   if (impl->session_bus == NULL)
 425     {
 426       /* If we can't connect to the session bus, proceed as a normal
 427        * non-unique application.
 428        */
 429       *remote_actions = NULL;
 430       return impl;
 431     }
 432
 433   impl->object_path = application_path_from_appid (appid);
 434
 435   /* Only try to be the primary instance if
 436    * G_APPLICATION_IS_LAUNCHER was not specified.
 437    */
 438   if (~flags & G_APPLICATION_IS_LAUNCHER)
 439     {
 440       /* Attempt to become primary instance. */
 441       impl->object_id =
 442         g_dbus_connection_register_object (impl->session_bus,
 443                                            impl->object_path,
 444                                            (GDBusInterfaceInfo *)
 445                                              &org_gtk_Application,
 446                                            &vtable, impl, NULL, error);
 447
 448       if (impl->object_id == 0)
 449         {
 450           g_object_unref (impl->session_bus);
 451           g_free (impl->object_path);
 452           impl->session_bus = NULL;
 453           impl->object_path = NULL;
 454
 455           g_slice_free (GApplicationImpl, impl);
 456           return NULL;
 457         }
 458
 459       if (!g_action_group_exporter_export (impl->session_bus,
 460                                            impl->object_path,
 461                                            impl->app, error))
 462         {
 463           g_dbus_connection_unregister_object (impl->session_bus,
 464                                                impl->object_id);
 465
 466           g_object_unref (impl->session_bus);
 467           g_free (impl->object_path);
 468           impl->session_bus = NULL;
 469           impl->object_path = NULL;
 470
 471           g_slice_free (GApplicationImpl, impl);
 472           return NULL;
 473         }
 474       impl->actions_exported = TRUE;
 475
 476       /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 477       reply = g_dbus_connection_call_sync (impl->session_bus,
 478                                            "org.freedesktop.DBus",
 479                                            "/org/freedesktop/DBus",
 480                                            "org.freedesktop.DBus",
 481                                            "RequestName",
 482                                            g_variant_new ("(su)",
 483                                                           impl->bus_name,
 484                                                           0x4),
 485                                            G_VARIANT_TYPE ("(u)"),
 486                                            0, -1, cancellable, error);
 487
 488       if (reply == NULL)
 489         {
 490           g_dbus_connection_unregister_object (impl->session_bus,
 491                                                impl->object_id);
 492           impl->object_id = 0;
 493
 494           g_action_group_exporter_stop (impl->app);
 495           impl->actions_exported = FALSE;
 496
 497           g_object_unref (impl->session_bus);
 498           g_free (impl->object_path);
 499           impl->session_bus = NULL;
 500           impl->object_path = NULL;
 501
 502           g_slice_free (GApplicationImpl, impl);
 503           return NULL;
 504         }
 505
 506       g_variant_get (reply, "(u)", &rval);
 507       g_variant_unref (reply);
 508
 509       /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 510       if (rval != 3)
 511         {
 512           /* We are the primary instance. */
 513           g_dbus_connection_emit_signal (impl->session_bus,
 514                                          NULL,
 515                                          impl->object_path,
 516                                          "org.gtk.Application",
 517                                          "Hello",
 518                                          g_variant_new ("(s)",
 519                                                         impl->bus_name),
 520                                          NULL);
 521           *remote_actions = NULL;
 522           return impl;
 523         }
 524
 525       /* We didn't make it.  Drop our service-side stuff. */
 526       g_dbus_connection_unregister_object (impl->session_bus,
 527                                            impl->object_id);
 528       impl->object_id = 0;
 529       g_action_group_exporter_stop (impl->app);
 530       impl->actions_exported = FALSE;
 531
 532       if (flags & G_APPLICATION_IS_SERVICE)
 533         {
 534           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 535                        "Unable to acquire bus name `%s'", appid);
 536           g_object_unref (impl->session_bus);
 537           g_free (impl->object_path);
 538
 539           g_slice_free (GApplicationImpl, impl);
 540           return NULL;
 541         }
 542     }
 543
 544   /* We are non-primary.  Try to get the primary's list of actions.
 545    * This also serves as a mechanism to ensure that the primary exists
 546    * (ie: DBus service files installed correctly, etc).
 547    */
 548   impl->signal_id =
 549     g_dbus_connection_signal_subscribe (impl->session_bus, impl->bus_name,
 550                                         "org.gtk.Actions", NULL,
 551                                         impl->object_path, NULL,
 552                                         G_DBUS_SIGNAL_FLAGS_NONE,
 553                                         g_application_impl_action_signal,
 554                                         impl, NULL);
 555
 556   reply = g_dbus_connection_call_sync (impl->session_bus, impl->bus_name,
 557                                        impl->object_path, "org.gtk.Actions",
 558                                        "DescribeAll", NULL,
 559                                        G_VARIANT_TYPE ("(a(savbav))"),
 560                                        G_DBUS_CALL_FLAGS_NONE, -1,
 561                                        cancellable, error);
 562
 563   if (reply == NULL)
 564     {
 565       /* The primary appears not to exist.  Fail the registration. */
 566       g_object_unref (impl->session_bus);
 567       g_free (impl->object_path);
 568       impl->session_bus = NULL;
 569       impl->object_path = NULL;
 570
 571       g_slice_free (GApplicationImpl, impl);
 572       return NULL;
 573     }
 574
 575   /* Create and populate the hashtable */
 576   {
 577     RemoteActionInfo *info;
 578     GVariant *descriptions;
 579     GVariantIter iter;
 580
 581     *remote_actions = g_hash_table_new (g_str_hash, g_str_equal);
 582     descriptions = g_variant_get_child_value (reply, 0);
 583     g_variant_iter_init (&iter, descriptions);
 584
 585     while ((info = remote_action_info_new_from_iter (&iter)))
 586       g_hash_table_insert (*remote_actions, info->name, info);
 587
 588     g_variant_unref (descriptions);
 589   }
 590
 591
 592   return impl;
 593 }
 594
 595 void
 596 g_application_impl_activate (GApplicationImpl *impl,
 597                              GVariant         *platform_data)
 598 {
 599   g_dbus_connection_call (impl->session_bus,
 600                           impl->bus_name,
 601                           impl->object_path,
 602                           "org.gtk.Application",
 603                           "Activate",
 604                           g_variant_new ("(@a{sv})", platform_data),
 605                           NULL, 0, -1, NULL, NULL, NULL);
 606 }
 607
 608 void
 609 g_application_impl_open (GApplicationImpl  *impl,
 610                          GFile            **files,
 611                          gint               n_files,
 612                          const gchar       *hint,
 613                          GVariant          *platform_data)
 614 {
 615   GVariantBuilder builder;
 616   gint i;
 617
 618   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 619   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 620   for (i = 0; i < n_files; i++)
 621     {
 622       gchar *uri = g_file_get_uri (files[i]);
 623       g_variant_builder_add (&builder, "s", uri);
 624       g_free (uri);
 625     }
 626   g_variant_builder_close (&builder);
 627   g_variant_builder_add (&builder, "s", hint);
 628   g_variant_builder_add_value (&builder, platform_data);
 629
 630   g_dbus_connection_call (impl->session_bus,
 631                           impl->bus_name,
 632                           impl->object_path,
 633                           "org.gtk.Application",
 634                           "Open",
 635                           g_variant_builder_end (&builder),
 636                           NULL, 0, -1, NULL, NULL, NULL);
 637 }
 638
 639 static void
 640 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 641                                         const gchar           *sender,
 642                                         const gchar           *object_path,
 643                                         const gchar           *interface_name,
 644                                         const gchar           *method_name,
 645                                         GVariant              *parameters,
 646                                         GDBusMethodInvocation *invocation,
 647                                         gpointer               user_data)
 648 {
 649   const gchar *message;
 650
 651   g_variant_get_child (parameters, 0, "&s", &message);
 652
 653   if (strcmp (method_name, "Print") == 0)
 654     g_print ("%s", message);
 655   else if (strcmp (method_name, "PrintError") == 0)
 656     g_printerr ("%s", message);
 657   else
 658     g_assert_not_reached ();
 659
 660   g_dbus_method_invocation_return_value (invocation, NULL);
 661 }
 662
 663 typedef struct
 664 {
 665   GMainLoop *loop;
 666   int status;
 667 } CommandLineData;
 668
 669 static void
 670 g_application_impl_cmdline_done (GObject      *source,
 671                                  GAsyncResult *result,
 672                                  gpointer      user_data)
 673 {
 674   CommandLineData *data = user_data;
 675   GError *error = NULL;
 676   GVariant *reply;
 677
 678   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 679                                          result, &error);
 680
 681   if (reply != NULL)
 682     {
 683       g_variant_get (reply, "(i)", &data->status);
 684       g_variant_unref (reply);
 685     }
 686
 687   else
 688     {
 689       g_printerr ("%s\n", error->message);
 690       g_error_free (error);
 691       data->status = 1;
 692     }
 693
 694   g_main_loop_quit (data->loop);
 695 }
 696
 697 int
 698 g_application_impl_command_line (GApplicationImpl  *impl,
 699                                  gchar            **arguments,
 700                                  GVariant          *platform_data)
 701 {
 702   const static GDBusInterfaceVTable vtable = {
 703     g_application_impl_cmdline_method_call
 704   };
 705   const gchar *object_path = "/org/gtk/Application/CommandLine";
 706   GMainContext *context;
 707   CommandLineData data;
 708   guint object_id;
 709
 710   context = g_main_context_new ();
 711   data.loop = g_main_loop_new (context, FALSE);
 712   g_main_context_push_thread_default (context);
 713
 714   object_id = g_dbus_connection_register_object (impl->session_bus,
 715                                                  object_path,
 716                                                  (GDBusInterfaceInfo *)
 717                                                    &org_gtk_private_Cmdline,
 718                                                  &vtable, &data, NULL, NULL);
 719   /* In theory we should try other paths... */
 720   g_assert (object_id != 0);
 721
 722   g_dbus_connection_call (impl->session_bus,
 723                           impl->bus_name,
 724                           impl->object_path,
 725                           "org.gtk.Application",
 726                           "CommandLine",
 727                           g_variant_new ("(o^aay@a{sv})", object_path,
 728                                          arguments, platform_data),
 729                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 730                           g_application_impl_cmdline_done, &data);
 731
 732   g_main_loop_run (data.loop);
 733
 734   g_main_context_pop_thread_default (context);
 735   g_main_context_unref (context);
 736   g_main_loop_unref (data.loop);
 737
 738   return data.status;
 739 }
 740
 741 void
 742 g_application_impl_change_action_state (GApplicationImpl *impl,
 743                                         const gchar      *action_name,
 744                                         GVariant         *value,
 745                                         GVariant         *platform_data)
 746 {
 747   g_dbus_connection_call (impl->session_bus,
 748                           impl->bus_name,
 749                           impl->object_path,
 750                           "org.gtk.Actions",
 751                           "SetState",
 752                           g_variant_new ("(sv@a{sv})", action_name,
 753                                          value, platform_data),
 754                           NULL, 0, -1, NULL, NULL, NULL);
 755 }
 756
 757 void
 758 g_application_impl_activate_action (GApplicationImpl *impl,
 759                                     const gchar      *action_name,
 760                                     GVariant         *parameter,
 761                                     GVariant         *platform_data)
 762 {
 763   GVariant *param;
 764
 765   if (parameter)
 766     parameter = g_variant_new_variant (parameter);
 767
 768   param = g_variant_new_array (G_VARIANT_TYPE_VARIANT,
 769                                &parameter, parameter != NULL);
 770
 771   g_dbus_connection_call (impl->session_bus,
 772                           impl->bus_name,
 773                           impl->object_path,
 774                           "org.gtk.Actions",
 775                           "Activate",
 776                           g_variant_new ("(s@av@a{sv})", action_name,
 777                                          param, platform_data),
 778                           NULL, 0, -1, NULL, NULL, NULL);
 779 }
 780
 781 void
 782 g_application_impl_flush (GApplicationImpl *impl)
 783 {
 784   if (impl->session_bus)
 785     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 786 }
 787
 788
 789 /* GDBusCommandLine implementation {{{1 */
 790
 791 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 792 static GType g_dbus_command_line_get_type (void);
 793 typedef struct
 794 {
 795   GApplicationCommandLine  parent_instance;
 796   GDBusMethodInvocation   *invocation;
 797
 798   GDBusConnection *connection;
 799   const gchar     *bus_name;
 800   const gchar     *object_path;
 801 } GDBusCommandLine;
 802
 803
 804 G_DEFINE_TYPE (GDBusCommandLine,
 805                g_dbus_command_line,
 806                G_TYPE_APPLICATION_COMMAND_LINE)
 807
 808 static void
 809 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 810                                    const gchar             *message)
 811 {
 812   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 813
 814   g_dbus_connection_call (gdbcl->connection,
 815                           gdbcl->bus_name,
 816                           gdbcl->object_path,
 817                           "org.gtk.private.CommandLine", "Print",
 818                           g_variant_new ("(s)", message),
 819                           NULL, 0, -1, NULL, NULL, NULL);
 820 }
 821
 822 static void
 823 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 824                                       const gchar             *message)
 825 {
 826   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 827
 828   g_dbus_connection_call (gdbcl->connection,
 829                           gdbcl->bus_name,
 830                           gdbcl->object_path,
 831                           "org.gtk.private.CommandLine", "PrintError",
 832                           g_variant_new ("(s)", message),
 833                           NULL, 0, -1, NULL, NULL, NULL);
 834 }
 835
 836 static void
 837 g_dbus_command_line_finalize (GObject *object)
 838 {
 839   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 840   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 841   gint status;
 842
 843   status = g_application_command_line_get_exit_status (cmdline);
 844
 845   g_dbus_method_invocation_return_value (gdbcl->invocation,
 846                                          g_variant_new ("(i)", status));
 847   g_object_unref (gdbcl->invocation);
 848
 849   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 850     ->finalize (object);
 851 }
 852
 853 static void
 854 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 855 {
 856 }
 857
 858 static void
 859 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 860 {
 861   GObjectClass *object_class = G_OBJECT_CLASS (class);
 862
 863   object_class->finalize = g_dbus_command_line_finalize;
 864   class->printerr_literal = g_dbus_command_line_printerr_literal;
 865   class->print_literal = g_dbus_command_line_print_literal;
 866 }
 867
 868 static GApplicationCommandLine *
 869 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 870 {
 871   GDBusCommandLine *gdbcl;
 872   GVariant *args;
 873
 874   args = g_dbus_method_invocation_get_parameters (invocation);
 875
 876   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 877                         "arguments", g_variant_get_child_value (args, 1),
 878                         "platform-data", g_variant_get_child_value (args, 2),
 879                         NULL);
 880   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 881   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 882   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 883   gdbcl->invocation = g_object_ref (invocation);
 884
 885   return G_APPLICATION_COMMAND_LINE (gdbcl);
 886 }
 887
 888 /* Epilogue {{{1 */
 889
 890 /* vim:set foldmethod=marker: */