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       g_strfreev (actions);
 333     }
 334
 335   else if (strcmp (method_name, "SetState") == 0)
 336     {
 337       const gchar *action_name;
 338       GVariant *platform_data;
 339       GVariant *state;
 340
 341       g_variant_get (parameters, "(&sv@a{sv})",
 342                      &action_name, &state, &platform_data);
 343
 344       class->before_emit (impl->app, platform_data);
 345       g_action_group_change_action_state (action_group, action_name, state);
 346       class->after_emit (impl->app, platform_data);
 347       g_variant_unref (platform_data);
 348       g_variant_unref (state);
 349
 350       g_dbus_method_invocation_return_value (invocation, NULL);
 351     }
 352
 353   else if (strcmp (method_name, "Activate") == 0)
 354     {
 355       const gchar *action_name;
 356       GVariant *platform_data;
 357       GVariantIter *param;
 358       GVariant *parameter;
 359       GVariant *unboxed_parameter;
 360
 361       g_variant_get (parameters, "(&sav@a{sv})",
 362                      &action_name, &param, &platform_data);
 363       parameter = g_variant_iter_next_value (param);
 364       unboxed_parameter = parameter ? g_variant_get_variant (parameter) : NULL;
 365       g_variant_iter_free (param);
 366
 367       class->before_emit (impl->app, platform_data);
 368       g_action_group_activate_action (action_group, action_name, unboxed_parameter);
 369       class->after_emit (impl->app, platform_data);
 370       g_variant_unref (platform_data);
 371
 372       if (unboxed_parameter)
 373         g_variant_unref (unboxed_parameter);
 374       if (parameter)
 375         g_variant_unref (parameter);
 376
 377       g_dbus_method_invocation_return_value (invocation, NULL);
 378     }
 379
 380   else
 381     g_assert_not_reached ();
 382 }
 383
 384 static gchar *
 385 application_path_from_appid (const gchar *appid)
 386 {
 387   gchar *appid_path, *iter;
 388
 389   appid_path = g_strconcat ("/", appid, NULL);
 390   for (iter = appid_path; *iter; iter++)
 391     {
 392       if (*iter == '.')
 393         *iter = '/';
 394
 395       if (*iter == '-')
 396         *iter = '_';
 397     }
 398
 399   return appid_path;
 400 }
 401
 402 void
 403 g_application_impl_destroy (GApplicationImpl *impl)
 404 {
 405   if (impl->session_bus)
 406     {
 407       if (impl->object_id)
 408         g_dbus_connection_unregister_object (impl->session_bus,
 409                                              impl->object_id);
 410
 411       g_object_unref (impl->session_bus);
 412       g_free (impl->object_path);
 413     }
 414   else
 415     {
 416       g_assert (impl->object_path == NULL);
 417       g_assert (impl->object_id == 0);
 418     }
 419
 420   g_slice_free (GApplicationImpl, impl);
 421 }
 422
 423 static void
 424 unwrap_fake_maybe (GVariant **value)
 425 {
 426   GVariant *tmp;
 427
 428   if (g_variant_n_children (*value))
 429     g_variant_get_child (*value, 0, "v", &tmp);
 430   else
 431     tmp = NULL;
 432
 433   g_variant_unref (*value);
 434   *value = tmp;
 435 }
 436
 437 RemoteActionInfo *
 438 remote_action_info_new_from_iter (GVariantIter *iter)
 439 {
 440   RemoteActionInfo *info;
 441   GVariant *param_type;
 442   gboolean enabled;
 443   GVariant *state;
 444   gchar *name;
 445
 446   if (!g_variant_iter_next (iter, "(s@avb@av)", &name,
 447                             &param_type, &enabled, &state))
 448     return NULL;
 449
 450   unwrap_fake_maybe (&param_type);
 451   unwrap_fake_maybe (&state);
 452
 453   info = g_slice_new (RemoteActionInfo);
 454   info->name = name;
 455   info->enabled = enabled;
 456   info->state = state;
 457
 458   if (param_type != NULL)
 459     {
 460       info->parameter_type = g_variant_type_copy (
 461                                g_variant_type_element (
 462                                  g_variant_get_type (param_type)));
 463       g_variant_unref (param_type);
 464     }
 465   else
 466     info->parameter_type = NULL;
 467
 468   return info;
 469 }
 470
 471 static void
 472 g_application_impl_action_signal (GDBusConnection *connection,
 473                                   const gchar     *sender_name,
 474                                   const gchar     *object_path,
 475                                   const gchar     *interface_name,
 476                                   const gchar     *signal_name,
 477                                   GVariant        *parameters,
 478                                   gpointer         user_data)
 479 {
 480   GApplicationImpl *impl = user_data;
 481   GActionGroup *action_group;
 482
 483   action_group = G_ACTION_GROUP (impl->app);
 484
 485   if (strcmp (signal_name, "Added") == 0 &&
 486       g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(a(savbav))")))
 487     {
 488       RemoteActionInfo *info;
 489       GVariantIter *iter;
 490
 491       g_variant_get_child (parameters, 0, "a(savbav)", &iter);
 492
 493       while ((info = remote_action_info_new_from_iter (iter)))
 494         {
 495           g_hash_table_replace (impl->actions, info->name, info);
 496           g_action_group_action_added (action_group, info->name);
 497         }
 498
 499       g_variant_iter_free (iter);
 500     }
 501
 502   else if (strcmp (signal_name, "Removed") == 0 &&
 503            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(as)")))
 504     {
 505       GVariantIter *iter;
 506       const gchar *name;
 507
 508       g_variant_get_child (parameters, 0, "as", &iter);
 509       while (g_variant_iter_next (iter, "&s", &name))
 510         if (g_hash_table_remove (impl->actions, name))
 511           g_action_group_action_removed (action_group, name);
 512       g_variant_iter_free (iter);
 513     }
 514
 515   else if (strcmp (signal_name, "EnabledChanged") == 0 &&
 516            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sb)")))
 517     {
 518       RemoteActionInfo *info;
 519       const gchar *name;
 520       gboolean enabled;
 521
 522       g_variant_get (parameters, "(&sb)", &name, &enabled);
 523       info = g_hash_table_lookup (impl->actions, name);
 524
 525       if (info && enabled != info->enabled)
 526         {
 527           info->enabled = enabled;
 528           g_action_group_action_enabled_changed (action_group,
 529                                                  info->name,
 530                                                  enabled);
 531         }
 532     }
 533
 534   else if (strcmp (signal_name, "StateChanged") == 0 &&
 535            g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sv)")))
 536     {
 537       RemoteActionInfo *info;
 538       const gchar *name;
 539       GVariant *state;
 540
 541       g_variant_get (parameters, "(&sv)", &name, &state);
 542       info = g_hash_table_lookup (impl->actions, name);
 543
 544       if (info && info->state &&
 545           g_variant_is_of_type (state, g_variant_get_type (info->state)) &&
 546           !g_variant_equal (state, info->state))
 547         {
 548           g_variant_unref (info->state);
 549           info->state = g_variant_ref (state);
 550           g_action_group_action_state_changed (action_group,
 551                                                info->name,
 552                                                state);
 553         }
 554       g_variant_unref (state);
 555     }
 556 }
 557
 558 GApplicationImpl *
 559 g_application_impl_register (GApplication       *application,
 560                              const gchar        *appid,
 561                              GApplicationFlags   flags,
 562                              GHashTable        **remote_actions,
 563                              GCancellable       *cancellable,
 564                              GError            **error)
 565 {
 566   const static GDBusInterfaceVTable vtable = {
 567     g_application_impl_method_call
 568   };
 569   const static GDBusInterfaceVTable actions_vtable = {
 570     g_application_impl_actions_method_call
 571   };
 572   GApplicationImpl *impl;
 573   GVariant *reply;
 574   guint32 rval;
 575
 576   impl = g_slice_new (GApplicationImpl);
 577
 578   impl->app = application;
 579   impl->bus_name = appid;
 580
 581   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION,
 582                                       cancellable, error);
 583
 584   if (impl->session_bus == NULL)
 585     {
 586       g_slice_free (GApplicationImpl, impl);
 587       return NULL;
 588     }
 589
 590   impl->object_path = application_path_from_appid (appid);
 591
 592   /* Only try to be the primary instance if
 593    * G_APPLICATION_IS_LAUNCHER was not specified.
 594    */
 595   if (~flags & G_APPLICATION_IS_LAUNCHER)
 596     {
 597       /* Attempt to become primary instance. */
 598       impl->object_id =
 599         g_dbus_connection_register_object (impl->session_bus,
 600                                            impl->object_path,
 601                                            (GDBusInterfaceInfo *)
 602                                              &org_gtk_Application,
 603                                            &vtable, impl, NULL, error);
 604
 605       if (impl->object_id == 0)
 606         {
 607           g_object_unref (impl->session_bus);
 608           g_free (impl->object_path);
 609           impl->session_bus = NULL;
 610           impl->object_path = NULL;
 611
 612           g_slice_free (GApplicationImpl, impl);
 613           return NULL;
 614         }
 615
 616       impl->action_id =
 617         g_dbus_connection_register_object (impl->session_bus,
 618                                            impl->object_path,
 619                                            (GDBusInterfaceInfo *)
 620                                              &org_gtk_Actions,
 621                                            &actions_vtable,
 622                                            impl, NULL, error);
 623
 624       if (impl->action_id == 0)
 625         {
 626           g_dbus_connection_unregister_object (impl->session_bus,
 627                                                impl->object_id);
 628
 629           g_object_unref (impl->session_bus);
 630           g_free (impl->object_path);
 631           impl->session_bus = NULL;
 632           impl->object_path = NULL;
 633
 634           g_slice_free (GApplicationImpl, impl);
 635           return NULL;
 636         }
 637
 638       /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 639       reply = g_dbus_connection_call_sync (impl->session_bus,
 640                                            "org.freedesktop.DBus",
 641                                            "/org/freedesktop/DBus",
 642                                            "org.freedesktop.DBus",
 643                                            "RequestName",
 644                                            g_variant_new ("(su)",
 645                                                           impl->bus_name,
 646                                                           0x4),
 647                                            G_VARIANT_TYPE ("(u)"),
 648                                            0, -1, cancellable, error);
 649
 650       if (reply == NULL)
 651         {
 652           g_dbus_connection_unregister_object (impl->session_bus,
 653                                                impl->object_id);
 654           impl->object_id = 0;
 655
 656           g_object_unref (impl->session_bus);
 657           g_free (impl->object_path);
 658           impl->session_bus = NULL;
 659           impl->object_path = NULL;
 660
 661           g_slice_free (GApplicationImpl, impl);
 662           return NULL;
 663         }
 664
 665       g_variant_get (reply, "(u)", &rval);
 666       g_variant_unref (reply);
 667
 668       /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 669       if (rval != 3)
 670         {
 671           /* We are the primary instance. */
 672           g_dbus_connection_emit_signal (impl->session_bus,
 673                                          NULL,
 674                                          impl->object_path,
 675                                          "org.gtk.Application",
 676                                          "Hello",
 677                                          g_variant_new ("(s)",
 678                                                         impl->bus_name),
 679                                          NULL);
 680           *remote_actions = NULL;
 681           return impl;
 682         }
 683
 684       /* We didn't make it.  Drop our service-side stuff. */
 685       g_dbus_connection_unregister_object (impl->session_bus,
 686                                            impl->object_id);
 687       impl->object_id = 0;
 688       g_dbus_connection_unregister_object (impl->session_bus,
 689                                            impl->action_id);
 690       impl->action_id = 0;
 691
 692       if (flags & G_APPLICATION_IS_SERVICE)
 693         {
 694           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 695                        "Unable to acquire bus name `%s'", appid);
 696           g_object_unref (impl->session_bus);
 697           g_free (impl->object_path);
 698
 699           g_slice_free (GApplicationImpl, impl);
 700           return NULL;
 701         }
 702     }
 703
 704   /* We are non-primary.  Try to get the primary's list of actions.
 705    * This also serves as a mechanism to ensure that the primary exists
 706    * (ie: DBus service files installed correctly, etc).
 707    */
 708   impl->signal_id =
 709     g_dbus_connection_signal_subscribe (impl->session_bus, impl->bus_name,
 710                                         "org.gtk.Actions", NULL,
 711                                         impl->object_path, NULL,
 712                                         G_DBUS_SIGNAL_FLAGS_NONE,
 713                                         g_application_impl_action_signal,
 714                                         impl, NULL);
 715
 716   reply = g_dbus_connection_call_sync (impl->session_bus, impl->bus_name,
 717                                        impl->object_path, "org.gtk.Actions",
 718                                        "DescribeAll", NULL,
 719                                        G_VARIANT_TYPE ("(a(savbav))"),
 720                                        G_DBUS_CALL_FLAGS_NONE, -1,
 721                                        cancellable, error);
 722
 723   if (reply == NULL)
 724     {
 725       /* The primary appears not to exist.  Fail the registration. */
 726       g_object_unref (impl->session_bus);
 727       g_free (impl->object_path);
 728       impl->session_bus = NULL;
 729       impl->object_path = NULL;
 730
 731       g_slice_free (GApplicationImpl, impl);
 732       return NULL;
 733     }
 734
 735   /* Create and populate the hashtable */
 736   {
 737     RemoteActionInfo *info;
 738     GVariant *descriptions;
 739     GVariantIter iter;
 740
 741     *remote_actions = g_hash_table_new (g_str_hash, g_str_equal);
 742     descriptions = g_variant_get_child_value (reply, 0);
 743     g_variant_iter_init (&iter, descriptions);
 744
 745     while ((info = remote_action_info_new_from_iter (&iter)))
 746       g_hash_table_insert (*remote_actions, info->name, info);
 747
 748     g_variant_unref (descriptions);
 749   }
 750
 751
 752   return impl;
 753 }
 754
 755 void
 756 g_application_impl_activate (GApplicationImpl *impl,
 757                              GVariant         *platform_data)
 758 {
 759   g_dbus_connection_call (impl->session_bus,
 760                           impl->bus_name,
 761                           impl->object_path,
 762                           "org.gtk.Application",
 763                           "Activate",
 764                           g_variant_new ("(@a{sv})", platform_data),
 765                           NULL, 0, -1, NULL, NULL, NULL);
 766 }
 767
 768 void
 769 g_application_impl_open (GApplicationImpl  *impl,
 770                          GFile            **files,
 771                          gint               n_files,
 772                          const gchar       *hint,
 773                          GVariant          *platform_data)
 774 {
 775   GVariantBuilder builder;
 776   gint i;
 777
 778   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 779   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 780   for (i = 0; i < n_files; i++)
 781     {
 782       gchar *uri = g_file_get_uri (files[i]);
 783       g_variant_builder_add (&builder, "s", uri);
 784       g_free (uri);
 785     }
 786   g_variant_builder_close (&builder);
 787   g_variant_builder_add (&builder, "s", hint);
 788   g_variant_builder_add_value (&builder, platform_data);
 789
 790   g_dbus_connection_call (impl->session_bus,
 791                           impl->bus_name,
 792                           impl->object_path,
 793                           "org.gtk.Application",
 794                           "Open",
 795                           g_variant_builder_end (&builder),
 796                           NULL, 0, -1, NULL, NULL, NULL);
 797 }
 798
 799 static void
 800 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 801                                         const gchar           *sender,
 802                                         const gchar           *object_path,
 803                                         const gchar           *interface_name,
 804                                         const gchar           *method_name,
 805                                         GVariant              *parameters,
 806                                         GDBusMethodInvocation *invocation,
 807                                         gpointer               user_data)
 808 {
 809   const gchar *message;
 810
 811   g_variant_get_child (parameters, 0, "&s", &message);
 812
 813   if (strcmp (method_name, "Print") == 0)
 814     g_print ("%s", message);
 815   else if (strcmp (method_name, "PrintError") == 0)
 816     g_printerr ("%s", message);
 817   else
 818     g_assert_not_reached ();
 819
 820   g_dbus_method_invocation_return_value (invocation, NULL);
 821 }
 822
 823 typedef struct
 824 {
 825   GMainLoop *loop;
 826   int status;
 827 } CommandLineData;
 828
 829 static void
 830 g_application_impl_cmdline_done (GObject      *source,
 831                                  GAsyncResult *result,
 832                                  gpointer      user_data)
 833 {
 834   CommandLineData *data = user_data;
 835   GError *error = NULL;
 836   GVariant *reply;
 837
 838   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 839                                          result, &error);
 840
 841   if (reply != NULL)
 842     {
 843       g_variant_get (reply, "(i)", &data->status);
 844       g_variant_unref (reply);
 845     }
 846
 847   else
 848     {
 849       g_printerr ("%s\n", error->message);
 850       g_error_free (error);
 851       data->status = 1;
 852     }
 853
 854   g_main_loop_quit (data->loop);
 855 }
 856
 857 int
 858 g_application_impl_command_line (GApplicationImpl  *impl,
 859                                  gchar            **arguments,
 860                                  GVariant          *platform_data)
 861 {
 862   const static GDBusInterfaceVTable vtable = {
 863     g_application_impl_cmdline_method_call
 864   };
 865   const gchar *object_path = "/org/gtk/Application/CommandLine";
 866   GMainContext *context;
 867   CommandLineData data;
 868   guint object_id;
 869
 870   context = g_main_context_new ();
 871   data.loop = g_main_loop_new (context, FALSE);
 872   g_main_context_push_thread_default (context);
 873
 874   object_id = g_dbus_connection_register_object (impl->session_bus,
 875                                                  object_path,
 876                                                  (GDBusInterfaceInfo *)
 877                                                    &org_gtk_private_Cmdline,
 878                                                  &vtable, &data, NULL, NULL);
 879   /* In theory we should try other paths... */
 880   g_assert (object_id != 0);
 881
 882   g_dbus_connection_call (impl->session_bus,
 883                           impl->bus_name,
 884                           impl->object_path,
 885                           "org.gtk.Application",
 886                           "CommandLine",
 887                           g_variant_new ("(o^aay@a{sv})", object_path,
 888                                          arguments, platform_data),
 889                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 890                           g_application_impl_cmdline_done, &data);
 891
 892   g_main_loop_run (data.loop);
 893
 894   g_main_context_pop_thread_default (context);
 895   g_main_context_unref (context);
 896   g_main_loop_unref (data.loop);
 897
 898   return data.status;
 899 }
 900
 901 void
 902 g_application_impl_change_action_state (GApplicationImpl *impl,
 903                                         const gchar      *action_name,
 904                                         GVariant         *value,
 905                                         GVariant         *platform_data)
 906 {
 907   g_dbus_connection_call (impl->session_bus,
 908                           impl->bus_name,
 909                           impl->object_path,
 910                           "org.gtk.Actions",
 911                           "SetState",
 912                           g_variant_new ("(sv@a{sv})", action_name,
 913                                          value, platform_data),
 914                           NULL, 0, -1, NULL, NULL, NULL);
 915 }
 916
 917 void
 918 g_application_impl_activate_action (GApplicationImpl *impl,
 919                                     const gchar      *action_name,
 920                                     GVariant         *parameter,
 921                                     GVariant         *platform_data)
 922 {
 923   GVariant *param;
 924
 925   if (parameter)
 926     parameter = g_variant_new_variant (parameter);
 927
 928   param = g_variant_new_array (G_VARIANT_TYPE_VARIANT,
 929                                &parameter, parameter != NULL);
 930
 931   g_dbus_connection_call (impl->session_bus,
 932                           impl->bus_name,
 933                           impl->object_path,
 934                           "org.gtk.Actions",
 935                           "Activate",
 936                           g_variant_new ("(s@av@a{sv})", action_name,
 937                                          param, platform_data),
 938                           NULL, 0, -1, NULL, NULL, NULL);
 939 }
 940
 941 void
 942 g_application_impl_flush (GApplicationImpl *impl)
 943 {
 944   g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 945 }
 946
 947
 948 /* GDBusCommandLine implementation {{{1 */
 949
 950 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 951 static GType g_dbus_command_line_get_type (void);
 952 typedef struct
 953 {
 954   GApplicationCommandLine  parent_instance;
 955   GDBusMethodInvocation   *invocation;
 956
 957   GDBusConnection *connection;
 958   const gchar     *bus_name;
 959   const gchar     *object_path;
 960 } GDBusCommandLine;
 961
 962
 963 G_DEFINE_TYPE (GDBusCommandLine,
 964                g_dbus_command_line,
 965                G_TYPE_APPLICATION_COMMAND_LINE)
 966
 967 static void
 968 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 969                                    const gchar             *message)
 970 {
 971   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 972
 973   g_dbus_connection_call (gdbcl->connection,
 974                           gdbcl->bus_name,
 975                           gdbcl->object_path,
 976                           "org.gtk.private.CommandLine", "Print",
 977                           g_variant_new ("(s)", message),
 978                           NULL, 0, -1, NULL, NULL, NULL);
 979 }
 980
 981 static void
 982 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 983                                       const gchar             *message)
 984 {
 985   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 986
 987   g_dbus_connection_call (gdbcl->connection,
 988                           gdbcl->bus_name,
 989                           gdbcl->object_path,
 990                           "org.gtk.private.CommandLine", "PrintError",
 991                           g_variant_new ("(s)", message),
 992                           NULL, 0, -1, NULL, NULL, NULL);
 993 }
 994
 995 static void
 996 g_dbus_command_line_finalize (GObject *object)
 997 {
 998   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 999   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
1000   gint status;
1001
1002   status = g_application_command_line_get_exit_status (cmdline);
1003
1004   g_dbus_method_invocation_return_value (gdbcl->invocation,
1005                                          g_variant_new ("(i)", status));
1006   g_object_unref (gdbcl->invocation);
1007
1008   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
1009     ->finalize (object);
1010 }
1011
1012 static void
1013 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
1014 {
1015 }
1016
1017 static void
1018 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
1019 {
1020   GObjectClass *object_class = G_OBJECT_CLASS (class);
1021
1022   object_class->finalize = g_dbus_command_line_finalize;
1023   class->printerr_literal = g_dbus_command_line_printerr_literal;
1024   class->print_literal = g_dbus_command_line_print_literal;
1025 }
1026
1027 static GApplicationCommandLine *
1028 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
1029 {
1030   GDBusCommandLine *gdbcl;
1031   GVariant *args;
1032
1033   args = g_dbus_method_invocation_get_parameters (invocation);
1034
1035   gdbcl = g_object_new (g_dbus_command_line_get_type (),
1036                         "arguments", g_variant_get_child_value (args, 1),
1037                         "platform-data", g_variant_get_child_value (args, 2),
1038                         NULL);
1039   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
1040   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
1041   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
1042   gdbcl->invocation = g_object_ref (invocation);
1043
1044   return G_APPLICATION_COMMAND_LINE (gdbcl);
1045 }
1046
1047 /* Epilogue {{{1 */
1048
1049 /* vim:set foldmethod=marker: */