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 "gapplication.h"
  26 #include "gfile.h"
  27 #include "gdbusconnection.h"
  28 #include "gdbusintrospection.h"
  29 #include "gdbuserror.h"
  30
  31 #include <string.h>
  32 #include <stdio.h>
  33
  34 #include "gapplicationcommandline.h"
  35 #include "gdbusmethodinvocation.h"
  36
  37 /* DBus Interface definition {{{1 */
  38 static const GDBusArgInfo platform_data_arg = { -1, (gchar *) "platform_data", (gchar *) "a{sv}" };
  39
  40 static const GDBusArgInfo open_uris_arg = { -1, (gchar *) "uris", (gchar *) "as" };
  41 static const GDBusArgInfo open_hint_arg = { -1, (gchar *) "hint", (gchar *) "s" };
  42
  43 static const GDBusArgInfo invoke_action_name_arg = { -1, (gchar *) "name", (gchar *) "s" };
  44 static const GDBusArgInfo invoke_action_args_arg = { -1, (gchar *) "args", (gchar *) "v" };
  45
  46 static const GDBusArgInfo cmdline_path_arg = { -1, (gchar *) "path", (gchar *) "o" };
  47 static const GDBusArgInfo cmdline_arguments_arg = { -1, (gchar *) "arguments", (gchar *) "aay" };
  48 static const GDBusArgInfo cmdline_exit_status_arg = { -1, (gchar *) "exit_status", (gchar *) "i" };
  49
  50 static const GDBusArgInfo *activate_in[] = { &platform_data_arg, NULL };
  51 static const GDBusArgInfo *activate_out[] = { NULL };
  52
  53 static const GDBusArgInfo *open_in[] = { &open_uris_arg, &open_hint_arg, &platform_data_arg, NULL };
  54 static const GDBusArgInfo *open_out[] = { NULL };
  55
  56 static const GDBusArgInfo *cmdline_in[] = { &cmdline_path_arg, &cmdline_arguments_arg, &platform_data_arg, NULL };
  57 static const GDBusArgInfo *cmdline_out[] = { &cmdline_exit_status_arg, NULL };
  58
  59 static const GDBusMethodInfo activate_method = {
  60   -1, (gchar *) "Activate",
  61   (GDBusArgInfo **) activate_in,
  62   (GDBusArgInfo **) activate_out
  63 };
  64
  65 static const GDBusMethodInfo open_method = {
  66   -1, (gchar *) "Open",
  67   (GDBusArgInfo **) open_in,
  68   (GDBusArgInfo **) open_out
  69 };
  70
  71 static const GDBusMethodInfo command_line_method = {
  72   -1, (gchar *) "CommandLine",
  73   (GDBusArgInfo **) cmdline_in,
  74   (GDBusArgInfo **) cmdline_out
  75 };
  76
  77 static const GDBusMethodInfo *application_methods[] = {
  78   &activate_method, &open_method, &command_line_method, NULL
  79 };
  80
  81 const GDBusInterfaceInfo org_gtk_Application = {
  82   -1, (gchar *) "org.gtk.Application",
  83   (GDBusMethodInfo **) application_methods
  84 };
  85
  86 static const GDBusArgInfo list_arg = { -1, (gchar *) "list", (gchar *) "a(savbav)" };
  87 static const GDBusArgInfo *describe_all_out[] = { &list_arg, NULL };
  88
  89 static const GDBusArgInfo action_name_arg = { -1, (gchar *) "action_name", (gchar *) "s" };
  90 static const GDBusArgInfo value_arg = { -1, (gchar *) "value", (gchar *) "v" };
  91 static const GDBusArgInfo *set_action_state_in[] = { &action_name_arg, &value_arg, &platform_data_arg, NULL };
  92
  93 static const GDBusArgInfo parameter_arg = { -1, (gchar *) "parameter", (gchar *) "av" };
  94 static const GDBusArgInfo *activate_action_in[] = { &action_name_arg, &parameter_arg, &platform_data_arg, NULL };
  95
  96 static const GDBusMethodInfo describe_all_method = {
  97   -1, (gchar *) "DescribeAll", NULL,
  98   (GDBusArgInfo **) describe_all_out
  99 };
 100
 101 static const GDBusMethodInfo set_action_state_method = {
 102   -1, (gchar *) "SetState",
 103   (GDBusArgInfo **) set_action_state_in
 104 };
 105
 106 static const GDBusMethodInfo activate_action_method = {
 107   -1, (gchar *) "Activate",
 108   (GDBusArgInfo **) activate_action_in
 109 };
 110
 111 static const GDBusMethodInfo *actions_methods[] = {
 112   &describe_all_method, &set_action_state_method, &activate_action_method, NULL
 113 };
 114
 115 const GDBusInterfaceInfo org_gtk_Actions = {
 116   -1, (gchar *) "org.gtk.Actions",
 117   (GDBusMethodInfo **) actions_methods
 118 };
 119
 120 static const GDBusArgInfo message_arg = { -1, (gchar *) "message", (gchar *) "s" };
 121 static const GDBusArgInfo *print_in[] = { &message_arg, NULL };
 122 static const GDBusArgInfo *print_out[] = { NULL };
 123
 124 static const GDBusMethodInfo stdout_method = {
 125   -1, (gchar *) "Print",
 126   (GDBusArgInfo **) print_in,
 127   (GDBusArgInfo **) print_out
 128 };
 129
 130 static const GDBusMethodInfo stderr_method = {
 131   -1, (gchar *) "PrintError",
 132   (GDBusArgInfo **) print_in,
 133   (GDBusArgInfo **) print_out
 134 };
 135
 136 static const GDBusMethodInfo *cmdline_methods[] = {
 137   &stdout_method, &stderr_method, NULL
 138 };
 139
 140 const GDBusInterfaceInfo org_gtk_private_Cmdline = {
 141   -1, (gchar *) "org.gtk.private.CommandLine",
 142   (GDBusMethodInfo **) cmdline_methods
 143 };
 144
 145 /* GApplication implementation {{{1 */
 146 struct _GApplicationImpl
 147 {
 148   GDBusConnection *session_bus;
 149   const gchar     *bus_name;
 150   gchar           *object_path;
 151   guint            object_id;
 152   guint            action_id;
 153   gpointer         app;
 154
 155   GHashTable      *actions;
 156   guint            signal_id;
 157 };
 158
 159
 160 static GApplicationCommandLine *
 161 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 162
 163
 164 static void
 165 g_application_impl_method_call (GDBusConnection       *connection,
 166                                 const gchar           *sender,
 167                                 const gchar           *object_path,
 168                                 const gchar           *interface_name,
 169                                 const gchar           *method_name,
 170                                 GVariant              *parameters,
 171                                 GDBusMethodInvocation *invocation,
 172                                 gpointer               user_data)
 173 {
 174   GApplicationImpl *impl = user_data;
 175   GApplicationClass *class;
 176
 177   class = G_APPLICATION_GET_CLASS (impl->app);
 178
 179   if (strcmp (method_name, "Activate") == 0)
 180     {
 181       GVariant *platform_data;
 182
 183       g_variant_get (parameters, "(@a{sv})", &platform_data);
 184       class->before_emit (impl->app, platform_data);
 185       g_signal_emit_by_name (impl->app, "activate");
 186       class->after_emit (impl->app, platform_data);
 187       g_variant_unref (platform_data);
 188
 189       g_dbus_method_invocation_return_value (invocation, NULL);
 190     }
 191
 192   else if (strcmp (method_name, "Open") == 0)
 193     {
 194       GVariant *platform_data;
 195       const gchar *hint;
 196       GVariant *array;
 197       GFile **files;
 198       gint n, i;
 199
 200       g_variant_get (parameters, "(@ass@a{sv})",
 201                      &array, &hint, &platform_data);
 202
 203       n = g_variant_n_children (array);
 204       files = g_new (GFile *, n + 1);
 205
 206       for (i = 0; i < n; i++)
 207         {
 208           const gchar *uri;
 209
 210           g_variant_get_child (array, i, "&s", &uri);
 211           files[i] = g_file_new_for_uri (uri);
 212         }
 213       g_variant_unref (array);
 214       files[n] = NULL;
 215
 216       class->before_emit (impl->app, platform_data);
 217       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 218       class->after_emit (impl->app, platform_data);
 219
 220       g_variant_unref (platform_data);
 221
 222       for (i = 0; i < n; i++)
 223         g_object_unref (files[i]);
 224       g_free (files);
 225
 226       g_dbus_method_invocation_return_value (invocation, NULL);
 227     }
 228
 229   else if (strcmp (method_name, "CommandLine") == 0)
 230     {
 231       GApplicationCommandLine *cmdline;
 232       GVariant *platform_data;
 233       int status;
 234
 235       cmdline = g_dbus_command_line_new (invocation);
 236       platform_data = g_variant_get_child_value (parameters, 2);
 237       class->before_emit (impl->app, platform_data);
 238       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 239       g_application_command_line_set_exit_status (cmdline, status);
 240       class->after_emit (impl->app, platform_data);
 241       g_variant_unref (platform_data);
 242       g_object_unref (cmdline);
 243     }
 244   else
 245     g_assert_not_reached ();
 246 }
 247
 248 static void
 249 g_application_impl_actions_method_call (GDBusConnection       *connection,
 250                                         const gchar           *sender,
 251                                         const gchar           *object_path,
 252                                         const gchar           *interface_name,
 253                                         const gchar           *method_name,
 254                                         GVariant              *parameters,
 255                                         GDBusMethodInvocation *invocation,
 256                                         gpointer               user_data)
 257 {
 258   GApplicationImpl *impl = user_data;
 259   GActionGroup *action_group;
 260   GApplicationClass *class;
 261
 262   class = G_APPLICATION_GET_CLASS (impl->app);
 263   action_group = G_ACTION_GROUP (impl->app);
 264
 265   if (strcmp (method_name, "DescribeAll") == 0)
 266     {
 267       GVariantBuilder builder;
 268       gchar **actions;
 269       gint i;
 270
 271       actions = g_action_group_list_actions (action_group);
 272       g_variant_builder_init (&builder, G_VARIANT_TYPE ("(a(savbav))"));
 273       g_variant_builder_open (&builder, G_VARIANT_TYPE ("a(savbav)"));
 274
 275       for (i = 0; actions[i]; i++)
 276         {
 277           /* Open */
 278           g_variant_builder_open (&builder, G_VARIANT_TYPE ("(savbav)"));
 279
 280           /* Name */
 281           g_variant_builder_add (&builder, "s", actions[i]);
 282
 283           /* Parameter type */
 284           g_variant_builder_open (&builder, G_VARIANT_TYPE ("av"));
 285             {
 286               const GVariantType *type;
 287
 288               type = g_action_group_get_action_parameter_type (action_group,
 289                                                                actions[i]);
 290               if (type != NULL)
 291                 {
 292                   GVariantType *array_type;
 293
 294                   array_type = g_variant_type_new_array (type);
 295                   g_variant_builder_open (&builder, G_VARIANT_TYPE_VARIANT);
 296                   g_variant_builder_open (&builder, array_type);
 297                   g_variant_builder_close (&builder);
 298                   g_variant_builder_close (&builder);
 299                   g_variant_type_free (array_type);
 300                 }
 301             }
 302           g_variant_builder_close (&builder);
 303
 304           /* Enabled */
 305           {
 306             gboolean enabled = g_action_group_get_action_enabled (action_group,
 307                                                                   actions[i]);
 308             g_variant_builder_add (&builder, "b", enabled);
 309           }
 310
 311           /* State */
 312           g_variant_builder_open (&builder, G_VARIANT_TYPE ("av"));
 313           {
 314             GVariant *state = g_action_group_get_action_state (action_group,
 315                                                                actions[i]);
 316             if (state != NULL)
 317               {
 318                 g_variant_builder_add (&builder, "v", state);
 319                 g_variant_unref (state);
 320               }
 321           }
 322           g_variant_builder_close (&builder);
 323
 324           /* Close */
 325           g_variant_builder_close (&builder);
 326         }
 327       g_variant_builder_close (&builder);
 328
 329       g_dbus_method_invocation_return_value (invocation,
 330                                              g_variant_builder_end (&builder));
 331     }
 332
 333   else if (strcmp (method_name, "SetState") == 0)
 334     {
 335       const gchar *action_name;
 336       GVariant *platform_data;
 337       GVariant *state;
 338
 339       g_variant_get (parameters, "(&sv@a{sv})",
 340                      &action_name, &state, &platform_data);
 341
 342       class->before_emit (impl->app, platform_data);
 343       g_action_group_change_action_state (action_group, action_name, state);
 344       class->after_emit (impl->app, platform_data);
 345       g_variant_unref (platform_data);
 346       g_variant_unref (state);
 347
 348       g_dbus_method_invocation_return_value (invocation, NULL);
 349     }
 350
 351   else if (strcmp (method_name, "Activate") == 0)
 352     {
 353       const gchar *action_name;
 354       GVariant *platform_data;
 355       GVariantIter *param;
 356       GVariant *parameter;
 357
 358       g_variant_get (parameters, "(&sav@a{sv})",
 359                      &action_name, &param, &platform_data);
 360       parameter = g_variant_iter_next_value (param);
 361       g_variant_iter_free (param);
 362
 363       class->before_emit (impl->app, platform_data);
 364       g_action_group_activate_action (action_group, action_name, parameter);
 365       class->after_emit (impl->app, platform_data);
 366       g_variant_unref (platform_data);
 367
 368       if (parameter)
 369         g_variant_unref (parameter);
 370
 371       g_dbus_method_invocation_return_value (invocation, NULL);
 372     }
 373
 374   else
 375     g_assert_not_reached ();
 376 }
 377
 378 static gchar *
 379 application_path_from_appid (const gchar *appid)
 380 {
 381   gchar *appid_path, *iter;
 382
 383   appid_path = g_strconcat ("/", appid, NULL);
 384   for (iter = appid_path; *iter; iter++)
 385     {
 386       if (*iter == '.')
 387         *iter = '/';
 388     }
 389
 390   return appid_path;
 391 }
 392
 393 void
 394 g_application_impl_destroy (GApplicationImpl *impl)
 395 {
 396   if (impl->session_bus)
 397     {
 398       if (impl->object_id)
 399         g_dbus_connection_unregister_object (impl->session_bus,
 400                                              impl->object_id);
 401
 402       g_object_unref (impl->session_bus);
 403       g_free (impl->object_path);
 404     }
 405   else
 406     {
 407       g_assert (impl->object_path == NULL);
 408       g_assert (impl->object_id == 0);
 409     }
 410
 411   g_slice_free (GApplicationImpl, impl);
 412 }
 413
 414 RemoteActionInfo *
 415 remote_action_info_new_from_iter (GVariantIter *iter)
 416 {
 417   RemoteActionInfo *info;
 418   const gchar *name;
 419   GVariant *param_type;
 420   gboolean enabled;
 421   GVariant *state;
 422
 423   if (!g_variant_iter_next (iter, "(s@avb@av)", &name,
 424                             &param_type, &enabled, &state))
 425     return NULL;
 426
 427   info = g_slice_new (RemoteActionInfo);
 428   info->parameter_type = g_variant_type_copy (
 429                            g_variant_type_element (
 430                              g_variant_get_type (param_type)));
 431   info->enabled = enabled;
 432   info->state = state;
 433
 434   g_variant_unref (param_type);
 435
 436   return info;
 437 }
 438
 439 static void
 440 g_application_impl_action_signal (GDBusConnection *connection,
 441                                   const gchar     *sender_name,
 442                                   const gchar     *object_path,
 443                                   const gchar     *interface_name,
 444                                   const gchar     *signal_name,
 445                                   GVariant        *parameters,
 446                                   gpointer         user_data)
 447 {
 448   GApplicationImpl *impl = user_data;
 449   GActionGroup *action_group;
 450
 451   action_group = G_ACTION_GROUP (impl->app);
 452
 453   if (strcmp (signal_name, "Added") == 0 &&
 454       g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(a(savbav))")))
 455     {
 456       RemoteActionInfo *info;
 457       GVariantIter *iter;
 458
 459       g_variant_get_child (parameters, 0, "a(savbav)", &iter);
 460
 461       while ((info = remote_action_info_new_from_iter (iter)))
 462         {
 463           g_hash_table_replace (impl->actions, info->name, info);
 464           g_action_group_action_added (action_group, info->name);
 465         }
 466
 467       g_variant_iter_free (iter);
 468     }
 469
 470   else if (strcmp (signal_name, "Removed") == 0 &&
 471            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(as)")))
 472     {
 473       GVariantIter *iter;
 474       const gchar *name;
 475
 476       g_variant_get_child (parameters, 0, "as", &iter);
 477       while (g_variant_iter_next (iter, "&s", &name))
 478         if (g_hash_table_remove (impl->actions, name))
 479           g_action_group_action_removed (action_group, name);
 480       g_variant_iter_free (iter);
 481     }
 482
 483   else if (strcmp (signal_name, "EnabledChanged") == 0 &&
 484            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sb)")))
 485     {
 486       RemoteActionInfo *info;
 487       const gchar *name;
 488       gboolean enabled;
 489
 490       g_variant_get (parameters, "(&sb)", &name, &enabled);
 491       info = g_hash_table_lookup (impl->actions, name);
 492
 493       if (info && enabled != info->enabled)
 494         {
 495           info->enabled = enabled;
 496           g_action_group_action_enabled_changed (action_group,
 497                                                  info->name,
 498                                                  enabled);
 499         }
 500     }
 501
 502   else if (strcmp (signal_name, "StateChanged") == 0 &&
 503            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sv)")))
 504     {
 505       RemoteActionInfo *info;
 506       const gchar *name;
 507       GVariant *state;
 508
 509       g_variant_get (parameters, "(&sv)", &name, &state);
 510       info = g_hash_table_lookup (impl->actions, name);
 511
 512       if (info && info->state &&
 513           g_variant_is_of_type (state, g_variant_get_type (info->state)) &&
 514           !g_variant_equal (state, info->state))
 515         {
 516           g_variant_unref (info->state);
 517           info->state = g_variant_ref (state);
 518           g_action_group_action_state_changed (action_group,
 519                                                info->name,
 520                                                state);
 521         }
 522       g_variant_unref (state);
 523     }
 524 }
 525
 526 GApplicationImpl *
 527 g_application_impl_register (GApplication       *application,
 528                              const gchar        *appid,
 529                              GApplicationFlags   flags,
 530                              GHashTable        **remote_actions,
 531                              GCancellable       *cancellable,
 532                              GError            **error)
 533 {
 534   const static GDBusInterfaceVTable vtable = {
 535     g_application_impl_method_call
 536   };
 537   const static GDBusInterfaceVTable actions_vtable = {
 538     g_application_impl_actions_method_call
 539   };
 540   GApplicationImpl *impl;
 541   GVariant *reply;
 542   guint32 rval;
 543
 544   impl = g_slice_new (GApplicationImpl);
 545
 546   impl->app = application;
 547   impl->bus_name = appid;
 548
 549   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION,
 550                                       cancellable, error);
 551
 552   if (impl->session_bus == NULL)
 553     {
 554       g_slice_free (GApplicationImpl, impl);
 555       return NULL;
 556     }
 557
 558   impl->object_path = application_path_from_appid (appid);
 559
 560   /* Only try to be the primary instance if
 561    * G_APPLICATION_IS_LAUNCHER was not specified.
 562    */
 563   if (~flags & G_APPLICATION_IS_LAUNCHER)
 564     {
 565       /* Attempt to become primary instance. */
 566       impl->object_id =
 567         g_dbus_connection_register_object (impl->session_bus,
 568                                            impl->object_path,
 569                                            (GDBusInterfaceInfo *)
 570                                              &org_gtk_Application,
 571                                            &vtable, impl, NULL, error);
 572
 573       if (impl->object_id == 0)
 574         {
 575           g_object_unref (impl->session_bus);
 576           g_free (impl->object_path);
 577           impl->session_bus = NULL;
 578           impl->object_path = NULL;
 579
 580           g_slice_free (GApplicationImpl, impl);
 581           return NULL;
 582         }
 583
 584       impl->action_id =
 585         g_dbus_connection_register_object (impl->session_bus,
 586                                            impl->object_path,
 587                                            (GDBusInterfaceInfo *)
 588                                              &org_gtk_Actions,
 589                                            &actions_vtable,
 590                                            impl, NULL, error);
 591
 592       if (impl->action_id == 0)
 593         {
 594           g_dbus_connection_unregister_object (impl->session_bus,
 595                                                impl->object_id);
 596
 597           g_object_unref (impl->session_bus);
 598           g_free (impl->object_path);
 599           impl->session_bus = NULL;
 600           impl->object_path = NULL;
 601
 602           g_slice_free (GApplicationImpl, impl);
 603           return NULL;
 604         }
 605
 606       /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 607       reply = g_dbus_connection_call_sync (impl->session_bus,
 608                                            "org.freedesktop.DBus",
 609                                            "/org/freedesktop/DBus",
 610                                            "org.freedesktop.DBus",
 611                                            "RequestName",
 612                                            g_variant_new ("(su)",
 613                                                           impl->bus_name,
 614                                                           0x4),
 615                                            G_VARIANT_TYPE ("(u)"),
 616                                            0, -1, cancellable, error);
 617
 618       if (reply == NULL)
 619         {
 620           g_dbus_connection_unregister_object (impl->session_bus,
 621                                                impl->object_id);
 622           impl->object_id = 0;
 623
 624           g_object_unref (impl->session_bus);
 625           g_free (impl->object_path);
 626           impl->session_bus = NULL;
 627           impl->object_path = NULL;
 628
 629           g_slice_free (GApplicationImpl, impl);
 630           return NULL;
 631         }
 632
 633       g_variant_get (reply, "(u)", &rval);
 634       g_variant_unref (reply);
 635
 636       /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 637       if (rval != 3)
 638         {
 639           /* We are the primary instance. */
 640           *remote_actions = NULL;
 641           return impl;
 642         }
 643
 644       /* We didn't make it.  Drop our service-side stuff. */
 645       g_dbus_connection_unregister_object (impl->session_bus,
 646                                            impl->object_id);
 647       impl->object_id = 0;
 648
 649       if (flags & G_APPLICATION_IS_SERVICE)
 650         {
 651           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 652                        "Unable to acquire bus name `%s'", appid);
 653           g_object_unref (impl->session_bus);
 654           g_free (impl->object_path);
 655
 656           g_slice_free (GApplicationImpl, impl);
 657           impl = NULL;
 658         }
 659     }
 660
 661   /* We are non-primary.  Try to get the primary's list of actions.
 662    * This also serves as a mechanism to ensure that the primary exists
 663    * (ie: DBus service files installed correctly, etc).
 664    */
 665   impl->signal_id =
 666     g_dbus_connection_signal_subscribe (impl->session_bus, impl->bus_name,
 667                                         "org.gtk.Actions", NULL,
 668                                         impl->object_path, NULL,
 669                                         G_DBUS_SIGNAL_FLAGS_NONE,
 670                                         g_application_impl_action_signal,
 671                                         impl, NULL);
 672
 673   reply = g_dbus_connection_call_sync (impl->session_bus, impl->bus_name,
 674                                        impl->object_path, "org.gtk.Actions",
 675                                        "DescribeAll", NULL,
 676                                        G_VARIANT_TYPE ("(a(savbav))"),
 677                                        G_DBUS_CALL_FLAGS_NONE, -1,
 678                                        cancellable, error);
 679
 680   if (reply == NULL)
 681     {
 682       /* The primary appears not to exist.  Fail the registration. */
 683       g_object_unref (impl->session_bus);
 684       g_free (impl->object_path);
 685       impl->session_bus = NULL;
 686       impl->object_path = NULL;
 687
 688       g_slice_free (GApplicationImpl, impl);
 689       return NULL;
 690     }
 691
 692   /* Create and populate the hashtable */
 693   {
 694     GVariant *descriptions;
 695     GVariantIter iter;
 696     GVariant *param_type;
 697     gboolean enabled;
 698     GVariant *state;
 699     gchar *name;
 700
 701     *remote_actions = g_hash_table_new (g_str_hash, g_str_equal);
 702     descriptions = g_variant_get_child_value (reply, 0);
 703     g_variant_iter_init (&iter, descriptions);
 704
 705     while (g_variant_iter_next (&iter, "(s@avb@av)", &name,
 706                                 &param_type, &enabled, &state))
 707       {
 708         RemoteActionInfo *action;
 709
 710         action = g_slice_new (RemoteActionInfo);
 711         action->parameter_type = g_variant_type_copy (
 712                                    g_variant_type_element (
 713                                      g_variant_get_type (param_type)));
 714         action->enabled = enabled;
 715         action->state = state;
 716
 717         g_hash_table_insert (*remote_actions, name, action);
 718         g_variant_unref (param_type);
 719       }
 720
 721     g_variant_unref (descriptions);
 722   }
 723
 724
 725   return impl;
 726 }
 727
 728 void
 729 g_application_impl_activate (GApplicationImpl *impl,
 730                              GVariant         *platform_data)
 731 {
 732   g_dbus_connection_call (impl->session_bus,
 733                           impl->bus_name,
 734                           impl->object_path,
 735                           "org.gtk.Application",
 736                           "Activate",
 737                           g_variant_new ("(@a{sv})", platform_data),
 738                           NULL, 0, -1, NULL, NULL, NULL);
 739 }
 740
 741 void
 742 g_application_impl_open (GApplicationImpl  *impl,
 743                          GFile            **files,
 744                          gint               n_files,
 745                          const gchar       *hint,
 746                          GVariant          *platform_data)
 747 {
 748   GVariantBuilder builder;
 749   gint i;
 750
 751   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 752   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 753   for (i = 0; i < n_files; i++)
 754     {
 755       gchar *uri = g_file_get_uri (files[i]);
 756       g_variant_builder_add (&builder, "s", uri);
 757       g_free (uri);
 758     }
 759   g_variant_builder_close (&builder);
 760   g_variant_builder_add (&builder, "s", hint);
 761   g_variant_builder_add_value (&builder, platform_data);
 762
 763   g_dbus_connection_call (impl->session_bus,
 764                           impl->bus_name,
 765                           impl->object_path,
 766                           "org.gtk.Application",
 767                           "Open",
 768                           g_variant_builder_end (&builder),
 769                           NULL, 0, -1, NULL, NULL, NULL);
 770 }
 771
 772 static void
 773 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 774                                         const gchar           *sender,
 775                                         const gchar           *object_path,
 776                                         const gchar           *interface_name,
 777                                         const gchar           *method_name,
 778                                         GVariant              *parameters,
 779                                         GDBusMethodInvocation *invocation,
 780                                         gpointer               user_data)
 781 {
 782   const gchar *message;
 783
 784   g_variant_get_child (parameters, 0, "&s", &message);
 785
 786   if (strcmp (method_name, "Print") == 0)
 787     g_print ("%s", message);
 788   else if (strcmp (method_name, "PrintError") == 0)
 789     g_printerr ("%s", message);
 790   else
 791     g_assert_not_reached ();
 792
 793   g_dbus_method_invocation_return_value (invocation, NULL);
 794 }
 795
 796 typedef struct
 797 {
 798   GMainLoop *loop;
 799   int status;
 800 } CommandLineData;
 801
 802 static void
 803 g_application_impl_cmdline_done (GObject      *source,
 804                                  GAsyncResult *result,
 805                                  gpointer      user_data)
 806 {
 807   CommandLineData *data = user_data;
 808   GError *error = NULL;
 809   GVariant *reply;
 810
 811   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 812                                          result, &error);
 813
 814   if (reply != NULL)
 815     {
 816       g_variant_get (reply, "(i)", &data->status);
 817       g_variant_unref (reply);
 818     }
 819
 820   else
 821     {
 822       g_printerr ("%s\n", error->message);
 823       g_error_free (error);
 824       data->status = 1;
 825     }
 826
 827   g_main_loop_quit (data->loop);
 828 }
 829
 830 int
 831 g_application_impl_command_line (GApplicationImpl  *impl,
 832                                  gchar            **arguments,
 833                                  GVariant          *platform_data)
 834 {
 835   const static GDBusInterfaceVTable vtable = {
 836     g_application_impl_cmdline_method_call
 837   };
 838   const gchar *object_path = "/org/gtk/Application/CommandLine";
 839   GMainContext *context;
 840   CommandLineData data;
 841   guint object_id;
 842
 843   context = g_main_context_new ();
 844   data.loop = g_main_loop_new (context, FALSE);
 845   g_main_context_push_thread_default (context);
 846
 847   object_id = g_dbus_connection_register_object (impl->session_bus,
 848                                                  object_path,
 849                                                  (GDBusInterfaceInfo *)
 850                                                    &org_gtk_private_Cmdline,
 851                                                  &vtable, &data, NULL, NULL);
 852   /* In theory we should try other paths... */
 853   g_assert (object_id != 0);
 854
 855   g_dbus_connection_call (impl->session_bus,
 856                           impl->bus_name,
 857                           impl->object_path,
 858                           "org.gtk.Application",
 859                           "CommandLine",
 860                           g_variant_new ("(o^aay@a{sv})", object_path,
 861                                          arguments, platform_data),
 862                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 863                           g_application_impl_cmdline_done, &data);
 864
 865   g_main_loop_run (data.loop);
 866
 867   g_main_context_pop_thread_default (context);
 868   g_main_context_unref (context);
 869   g_main_loop_unref (data.loop);
 870
 871   return data.status;
 872 }
 873
 874 void
 875 g_application_impl_change_action_state (GApplicationImpl *impl,
 876                                         const gchar      *action_name,
 877                                         GVariant         *value,
 878                                         GVariant         *platform_data)
 879 {
 880   g_dbus_connection_call (impl->session_bus,
 881                           impl->bus_name,
 882                           impl->object_path,
 883                           "org.gtk.Actions",
 884                           "SetState",
 885                           g_variant_new ("(sv@a{sv})", action_name,
 886                                          value, platform_data),
 887                           NULL, 0, -1, NULL, NULL, NULL);
 888 }
 889
 890 void
 891 g_application_impl_activate_action (GApplicationImpl *impl,
 892                                     const gchar      *action_name,
 893                                     GVariant         *parameter,
 894                                     GVariant         *platform_data)
 895 {
 896   GVariant *param;
 897
 898   if (parameter)
 899     parameter = g_variant_new_variant (parameter);
 900
 901   param = g_variant_new_array (G_VARIANT_TYPE_VARIANT,
 902                                &parameter, parameter != NULL);
 903
 904   g_dbus_connection_call (impl->session_bus,
 905                           impl->bus_name,
 906                           impl->object_path,
 907                           "org.gtk.Actions",
 908                           "Activate",
 909                           g_variant_new ("(s@av@a{sv})", action_name,
 910                                          param, platform_data),
 911                           NULL, 0, -1, NULL, NULL, NULL);
 912 }
 913
 914 void
 915 g_application_impl_flush (GApplicationImpl *impl)
 916 {
 917   g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 918 }
 919
 920
 921 /* GDBusCommandLine implementation {{{1 */
 922
 923 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 924 static GType g_dbus_command_line_get_type (void);
 925 typedef struct
 926 {
 927   GApplicationCommandLine  parent_instance;
 928   GDBusMethodInvocation   *invocation;
 929
 930   GDBusConnection *connection;
 931   const gchar     *bus_name;
 932   const gchar     *object_path;
 933 } GDBusCommandLine;
 934
 935
 936 G_DEFINE_TYPE (GDBusCommandLine,
 937                g_dbus_command_line,
 938                G_TYPE_APPLICATION_COMMAND_LINE)
 939
 940 static void
 941 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 942                                    const gchar             *message)
 943 {
 944   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 945
 946   g_dbus_connection_call (gdbcl->connection,
 947                           gdbcl->bus_name,
 948                           gdbcl->object_path,
 949                           "org.gtk.private.CommandLine", "Print",
 950                           g_variant_new ("(s)", message),
 951                           NULL, 0, -1, NULL, NULL, NULL);
 952 }
 953
 954 static void
 955 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 956                                       const gchar             *message)
 957 {
 958   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 959
 960   g_dbus_connection_call (gdbcl->connection,
 961                           gdbcl->bus_name,
 962                           gdbcl->object_path,
 963                           "org.gtk.private.CommandLine", "PrintError",
 964                           g_variant_new ("(s)", message),
 965                           NULL, 0, -1, NULL, NULL, NULL);
 966 }
 967
 968 static void
 969 g_dbus_command_line_finalize (GObject *object)
 970 {
 971   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 972   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 973   gint status;
 974
 975   status = g_application_command_line_get_exit_status (cmdline);
 976
 977   g_dbus_method_invocation_return_value (gdbcl->invocation,
 978                                          g_variant_new ("(i)", status));
 979   g_object_unref (gdbcl->invocation);
 980
 981   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 982     ->finalize (object);
 983 }
 984
 985 static void
 986 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 987 {
 988 }
 989
 990 static void
 991 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 992 {
 993   GObjectClass *object_class = G_OBJECT_CLASS (class);
 994
 995   object_class->finalize = g_dbus_command_line_finalize;
 996   class->printerr_literal = g_dbus_command_line_printerr_literal;
 997   class->print_literal = g_dbus_command_line_print_literal;
 998 }
 999
1000 static GApplicationCommandLine *
1001 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
1002 {
1003   GDBusCommandLine *gdbcl;
1004   GVariant *args;
1005
1006   args = g_dbus_method_invocation_get_parameters (invocation);
1007
1008   gdbcl = g_object_new (g_dbus_command_line_get_type (),
1009                         "arguments", g_variant_get_child_value (args, 1),
1010                         "platform-data", g_variant_get_child_value (args, 2),
1011                         NULL);
1012   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
1013   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
1014   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
1015   gdbcl->invocation = g_object_ref (invocation);
1016
1017   return G_APPLICATION_COMMAND_LINE (gdbcl);
1018 }
1019
1020 /* Epilogue {{{1 */
1021
1022 /* vim:set foldmethod=marker: */