Pileus Git - ~andy/gtk/blob - gtk/gtkapplicationwindow.c

   1 /*
   2  * Copyright © 2011 Canonical 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 licence, 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 Public
  15  * 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  * Author: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #include "config.h"
  23
  24 #include "gtkapplicationwindow.h"
  25
  26 #include "gtkapplicationprivate.h"
  27 #include "gtkmodelmenu.h"
  28 #include "gactionmuxer.h"
  29 #include "gtkaccelgroup.h"
  30 #include "gtkaccelmap.h"
  31 #include "gtkintl.h"
  32
  33 #include <gdk/gdk.h>
  34 #ifdef GDK_WINDOWING_X11
  35 #include <gdk/x11/gdkx.h>
  36 #endif
  37
  38 /**
  39  * SECTION:gtkapplicationwindow
  40  * @title: GtkApplicationWindow
  41  * @short_description: GtkWindow subclass with GtkApplication support
  42  *
  43  * GtkApplicationWindow is a #GtkWindow subclass that offers some
  44  * extra functionality for better integration with #GtkApplication
  45  * features.  Notably, it can handle both the application menu as well
  46  * as the menubar. See g_application_set_app_menu() and
  47  * g_application_set_menubar().
  48  *
  49  * This class implements the #GActionGroup and #GActionMap interfaces,
  50  * to let you add window-specific actions that will be exported by the
  51  * associated #GtkApplication, together with its application-wide
  52  * actions.  Window-specific actions are prefixed with the "win."
  53  * prefix and application-wide actions are prefixed with the "app."
  54  * prefix.  Actions must be addressed with the prefixed name when
  55  * referring to them from a #GMenuModel.
  56  *
  57  * As with #GtkApplication, the GDK lock will be acquired when
  58  * processing actions arriving from other processes and should therefore
  59  * be held when activating actions locally (if GDK threads are enabled).
  60  *
  61  * The settings #GtkSettings:gtk-shell-shows-app-menu and
  62  * #GtkSettings:gtk-shell-shows-menubar tell GTK+ whether the
  63  * desktop environment is showing the application menu and menubar
  64  * models outside the application as part of the desktop shell.
  65  * For instance, on OS X, both menus will be displayed remotely;
  66  * on Windows neither will be. gnome-shell (starting with version 3.4)
  67  * will display the application menu, but not the menubar.
  68  *
  69  * If the desktop environment does not display the menubar, then
  70  * #GApplicationWindow will automatically show a #GtkMenubar for it.
  71  * This behaviour can be overridden with the #GtkApplicationWindow:show-menubar
  72  * property. If the desktop environment does not display the application
  73  * menu, then it will automatilly be included in the menubar.
  74  *
  75  * <example><title>A GtkApplicationWindow with a menubar</title>
  76  * <programlisting><![CDATA[
  77  * app = gtk_application_new ();
  78  *
  79  * builder = gtk_builder_new ();
  80  * gtk_builder_add_from_string (builder,
  81  *     "<interface>"
  82  *     "  <menu id='menubar'>"
  83  *     "    <submenu label='_Edit'>"
  84  *     "      <item label='_Copy' action='win.copy'/>"
  85  *     "      <item label='_Paste' action='win.paste'/>"
  86  *     "    </submenu>"
  87  *     "  </menu>"
  88  *     "</interface>");
  89  * g_application_set_menubar (G_APPLICATION (app),
  90  *                            G_MENU_MODEL (gtk_builder_get_object (builder, "menubar")));
  91  * g_object_unref (builder);
  92  *
  93  * ...
  94  *
  95  * window = gtk_application_window_new (app);
  96  * ]]>
  97  * </programlisting>
  98  * </example>
  99  */
 100
 101 typedef GSimpleActionGroupClass GtkApplicationWindowActionsClass;
 102 typedef struct
 103 {
 104   GSimpleActionGroup parent_instance;
 105   GtkWindow *window;
 106 } GtkApplicationWindowActions;
 107
 108 static GType gtk_application_window_actions_get_type   (void);
 109 static void  gtk_application_window_actions_iface_init (GRemoteActionGroupInterface *iface);
 110 G_DEFINE_TYPE_WITH_CODE (GtkApplicationWindowActions, gtk_application_window_actions, G_TYPE_SIMPLE_ACTION_GROUP,
 111                          G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, gtk_application_window_actions_iface_init))
 112
 113 static void
 114 gtk_application_window_actions_activate_action_full (GRemoteActionGroup *remote,
 115                                                      const gchar        *action_name,
 116                                                      GVariant           *parameter,
 117                                                      GVariant           *platform_data)
 118 {
 119   GtkApplicationWindowActions *actions = (GtkApplicationWindowActions *) remote;
 120   GApplication *application;
 121   GApplicationClass *class;
 122
 123   application = G_APPLICATION (gtk_window_get_application (actions->window));
 124   class = G_APPLICATION_GET_CLASS (application);
 125
 126   class->before_emit (application, platform_data);
 127   g_action_group_activate_action (G_ACTION_GROUP (actions), action_name, parameter);
 128   class->after_emit (application, platform_data);
 129 }
 130
 131 static void
 132 gtk_application_window_actions_change_action_state_full (GRemoteActionGroup *remote,
 133                                                          const gchar        *action_name,
 134                                                          GVariant           *value,
 135                                                          GVariant           *platform_data)
 136 {
 137   GtkApplicationWindowActions *actions = (GtkApplicationWindowActions *) remote;
 138   GApplication *application;
 139   GApplicationClass *class;
 140
 141   application = G_APPLICATION (gtk_window_get_application (actions->window));
 142   class = G_APPLICATION_GET_CLASS (application);
 143
 144   class->before_emit (application, platform_data);
 145   g_action_group_change_action_state (G_ACTION_GROUP (actions), action_name, value);
 146   class->after_emit (application, platform_data);
 147 }
 148
 149 static void
 150 gtk_application_window_actions_init (GtkApplicationWindowActions *actions)
 151 {
 152 }
 153
 154 static void
 155 gtk_application_window_actions_iface_init (GRemoteActionGroupInterface *iface)
 156 {
 157   iface->activate_action_full = gtk_application_window_actions_activate_action_full;
 158   iface->change_action_state_full = gtk_application_window_actions_change_action_state_full;
 159 }
 160
 161 static void
 162 gtk_application_window_actions_class_init (GtkApplicationWindowActionsClass *class)
 163 {
 164 }
 165
 166 static GSimpleActionGroup *
 167 gtk_application_window_actions_new (GtkApplicationWindow *window)
 168 {
 169   GtkApplicationWindowActions *actions;
 170
 171   actions = g_object_new (gtk_application_window_actions_get_type (), NULL);
 172   actions->window = GTK_WINDOW (window);
 173
 174   return G_SIMPLE_ACTION_GROUP (actions);
 175 }
 176
 177 /* Now onto GtkApplicationWindow... */
 178
 179 struct _GtkApplicationWindowPrivate
 180 {
 181   GSimpleActionGroup *actions;
 182   GActionObservable *muxer;
 183   GtkWidget *menubar;
 184   GtkAccelGroup *accels;
 185   GSList *accel_closures;
 186
 187   GMenu *app_menu_section;
 188   GMenu *menubar_section;
 189   gboolean show_menubar;
 190
 191   GDBusConnection *session;
 192   gchar           *object_path;
 193   guint            export_id;
 194 };
 195
 196 static void
 197 gtk_application_window_update_menubar (GtkApplicationWindow *window)
 198 {
 199   gboolean should_have_menubar;
 200   gboolean have_menubar;
 201
 202   have_menubar = window->priv->menubar != NULL;
 203
 204   should_have_menubar = window->priv->show_menubar &&
 205                         (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) ||
 206                          g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)));
 207
 208   if (have_menubar && !should_have_menubar)
 209     {
 210       gtk_widget_unparent (window->priv->menubar);
 211       window->priv->menubar = NULL;
 212
 213       gtk_widget_queue_resize (GTK_WIDGET (window));
 214     }
 215
 216   if (!have_menubar && should_have_menubar)
 217     {
 218       GMenu *combined;
 219
 220       combined = g_menu_new ();
 221       g_menu_append_section (combined, NULL, G_MENU_MODEL (window->priv->app_menu_section));
 222       g_menu_append_section (combined, NULL, G_MENU_MODEL (window->priv->menubar_section));
 223
 224       window->priv->menubar = gtk_model_menu_create_menu_bar (G_MENU_MODEL (combined), window->priv->muxer, window->priv->accels);
 225       gtk_widget_set_parent (window->priv->menubar, GTK_WIDGET (window));
 226       gtk_widget_show_all (window->priv->menubar);
 227       g_object_unref (combined);
 228
 229       gtk_widget_queue_resize (GTK_WIDGET (window));
 230     }
 231 }
 232
 233 static void
 234 gtk_application_window_update_shell_shows_app_menu (GtkApplicationWindow *window,
 235                                                     GtkSettings          *settings)
 236 {
 237   gboolean shown_by_shell;
 238
 239   g_object_get (settings, "gtk-shell-shows-app-menu", &shown_by_shell, NULL);
 240
 241   if (shown_by_shell)
 242     {
 243       /* the shell shows it, so don't show it locally */
 244       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) != 0)
 245         g_menu_remove (window->priv->app_menu_section, 0);
 246     }
 247   else
 248     {
 249       /* the shell does not show it, so make sure we show it */
 250       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) == 0)
 251         {
 252           GMenuModel *app_menu;
 253
 254           app_menu = g_application_get_app_menu (G_APPLICATION (gtk_window_get_application (GTK_WINDOW (window))));
 255
 256           if (app_menu != NULL)
 257             g_menu_append_submenu (window->priv->app_menu_section, _("Application"), app_menu);
 258         }
 259     }
 260 }
 261
 262 static void
 263 gtk_application_window_update_shell_shows_menubar (GtkApplicationWindow *window,
 264                                                    GtkSettings          *settings)
 265 {
 266   gboolean shown_by_shell;
 267
 268   g_object_get (settings, "gtk-shell-shows-menubar", &shown_by_shell, NULL);
 269
 270   if (shown_by_shell)
 271     {
 272       /* the shell shows it, so don't show it locally */
 273       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)) != 0)
 274         g_menu_remove (window->priv->menubar_section, 0);
 275     }
 276   else
 277     {
 278       /* the shell does not show it, so make sure we show it */
 279       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)) == 0)
 280         {
 281           GMenuModel *menubar;
 282
 283           menubar = g_application_get_menubar (G_APPLICATION (gtk_window_get_application (GTK_WINDOW (window))));
 284
 285           if (menubar != NULL)
 286             g_menu_append_section (window->priv->menubar_section, NULL, menubar);
 287         }
 288     }
 289 }
 290
 291 typedef struct {
 292   GClosure closure;
 293   gchar *action_name;
 294   GVariant *parameter;
 295 } AccelClosure;
 296
 297 static void
 298 accel_activate (GClosure     *closure,
 299                 GValue       *return_value,
 300                 guint         n_param_values,
 301                 const GValue *param_values,
 302                 gpointer      invocation_hint,
 303                 gpointer      marshal_data)
 304 {
 305   AccelClosure *aclosure = (AccelClosure*)closure;
 306   GActionGroup *actions;
 307
 308   actions = G_ACTION_GROUP (closure->data);
 309   if (g_action_group_get_action_enabled (actions, aclosure->action_name))
 310     {
 311        g_action_group_activate_action (actions, aclosure->action_name, aclosure->parameter);
 312
 313       /* we handled the accelerator */
 314       g_value_set_boolean (return_value, TRUE);
 315     }
 316 }
 317
 318 static void
 319 free_accel_closures (GtkApplicationWindow *window)
 320 {
 321   GSList *l;
 322
 323   for (l = window->priv->accel_closures; l; l = l->next)
 324     {
 325        AccelClosure *closure = l->data;
 326
 327        gtk_accel_group_disconnect (window->priv->accels, &closure->closure);
 328
 329        g_object_unref (closure->closure.data);
 330        if (closure->parameter)
 331          g_variant_unref (closure->parameter);
 332        g_free (closure->action_name);
 333        g_closure_invalidate (&closure->closure);
 334        g_closure_unref (&closure->closure);
 335     }
 336   g_slist_free (window->priv->accel_closures);
 337   window->priv->accel_closures = NULL;
 338 }
 339
 340 typedef struct {
 341   GtkApplicationWindow *window;
 342   GActionGroup *actions;
 343 } AccelData;
 344
 345 /* Hack. We iterate over the accel map instead of the actions,
 346  * in order to pull the parameters out of accel map entries
 347  */
 348 static void
 349 add_accel_closure (gpointer         data,
 350                    const gchar     *accel_path,
 351                    guint            accel_key,
 352                    GdkModifierType  accel_mods,
 353                    gboolean         changed)
 354 {
 355   AccelData *d = data;
 356   GtkApplicationWindow *window = d->window;
 357   GActionGroup *actions = d->actions;
 358   const gchar *path;
 359   const gchar *p;
 360   gchar *action_name;
 361   GVariant *parameter;
 362   AccelClosure *closure;
 363
 364   if (accel_key == 0)
 365     return;
 366
 367   if (!g_str_has_prefix (accel_path, "<Actions>/"))
 368     return;
 369
 370   path = accel_path + strlen ("<Actions>/");
 371   p = strchr (path, '/');
 372   if (p)
 373     {
 374       action_name = g_strndup (path, p - path);
 375       parameter = g_variant_parse (NULL, p + 1, NULL, NULL, NULL);
 376       if (!parameter)
 377         g_warning ("Failed to parse parameter from '%s'\n", accel_path);
 378     }
 379   else
 380     {
 381       action_name = g_strdup (path);
 382       parameter = NULL;
 383     }
 384
 385   if (g_action_group_has_action (actions, action_name))
 386     {
 387       closure = (AccelClosure*) g_closure_new_object (sizeof (AccelClosure), g_object_ref (actions));
 388       g_closure_set_marshal (&closure->closure, accel_activate);
 389
 390       closure->action_name = g_strdup (action_name);
 391       closure->parameter = parameter ? g_variant_ref_sink (parameter) : NULL;
 392
 393       window->priv->accel_closures = g_slist_prepend (window->priv->accel_closures, g_closure_ref (&closure->closure));
 394       g_closure_sink (&closure->closure);
 395
 396       gtk_accel_group_connect_by_path (window->priv->accels, accel_path, &closure->closure);
 397     }
 398
 399   g_free (action_name);
 400 }
 401
 402 static void
 403 gtk_application_window_update_accels (GtkApplicationWindow *window)
 404 {
 405   AccelData data;
 406
 407   free_accel_closures (window);
 408
 409   data.window = window;
 410   data.actions = G_ACTION_GROUP (window->priv->muxer);
 411
 412   gtk_accel_map_foreach (&data, add_accel_closure);
 413 }
 414
 415 static void
 416 gtk_application_window_shell_shows_app_menu_changed (GObject    *object,
 417                                                      GParamSpec *pspec,
 418                                                      gpointer    user_data)
 419 {
 420   GtkApplicationWindow *window = user_data;
 421
 422   gtk_application_window_update_shell_shows_app_menu (window, GTK_SETTINGS (object));
 423   gtk_application_window_update_menubar (window);
 424 }
 425
 426 static void
 427 gtk_application_window_shell_shows_menubar_changed (GObject    *object,
 428                                                     GParamSpec *pspec,
 429                                                     gpointer    user_data)
 430 {
 431   GtkApplicationWindow *window = user_data;
 432
 433   gtk_application_window_update_shell_shows_menubar (window, GTK_SETTINGS (object));
 434   gtk_application_window_update_menubar (window);
 435 }
 436
 437 static gchar **
 438 gtk_application_window_list_actions (GActionGroup *group)
 439 {
 440   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 441
 442   return g_action_group_list_actions (G_ACTION_GROUP (window->priv->actions));
 443 }
 444
 445 static gboolean
 446 gtk_application_window_query_action (GActionGroup        *group,
 447                                      const gchar         *action_name,
 448                                      gboolean            *enabled,
 449                                      const GVariantType **parameter_type,
 450                                      const GVariantType **state_type,
 451                                      GVariant           **state_hint,
 452                                      GVariant           **state)
 453 {
 454   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 455
 456   return g_action_group_query_action (G_ACTION_GROUP (window->priv->actions),
 457                                       action_name, enabled, parameter_type, state_type, state_hint, state);
 458 }
 459
 460 static void
 461 gtk_application_window_activate_action (GActionGroup *group,
 462                                         const gchar  *action_name,
 463                                         GVariant     *parameter)
 464 {
 465   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 466
 467   return g_action_group_activate_action (G_ACTION_GROUP (window->priv->actions), action_name, parameter);
 468 }
 469
 470 static void
 471 gtk_application_window_change_action_state (GActionGroup *group,
 472                                             const gchar  *action_name,
 473                                             GVariant     *state)
 474 {
 475   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 476
 477   return g_action_group_change_action_state (G_ACTION_GROUP (window->priv->actions), action_name, state);
 478 }
 479
 480 static GAction *
 481 gtk_application_window_lookup_action (GActionMap  *action_map,
 482                                       const gchar *action_name)
 483 {
 484   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 485
 486   return g_action_map_lookup_action (G_ACTION_MAP (window->priv->actions), action_name);
 487 }
 488
 489 static void
 490 gtk_application_window_add_action (GActionMap *action_map,
 491                                    GAction    *action)
 492 {
 493   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 494
 495   g_action_map_add_action (G_ACTION_MAP (window->priv->actions), action);
 496 }
 497
 498 static void
 499 gtk_application_window_remove_action (GActionMap  *action_map,
 500                                       const gchar *action_name)
 501 {
 502   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 503
 504   g_action_map_remove_action (G_ACTION_MAP (window->priv->actions), action_name);
 505 }
 506
 507 static void
 508 gtk_application_window_group_iface_init (GActionGroupInterface *iface)
 509 {
 510   iface->list_actions = gtk_application_window_list_actions;
 511   iface->query_action = gtk_application_window_query_action;
 512   iface->activate_action = gtk_application_window_activate_action;
 513   iface->change_action_state = gtk_application_window_change_action_state;
 514 }
 515
 516 static void
 517 gtk_application_window_map_iface_init (GActionMapInterface *iface)
 518 {
 519   iface->lookup_action = gtk_application_window_lookup_action;
 520   iface->add_action = gtk_application_window_add_action;
 521   iface->remove_action = gtk_application_window_remove_action;
 522 }
 523
 524 G_DEFINE_TYPE_WITH_CODE (GtkApplicationWindow, gtk_application_window, GTK_TYPE_WINDOW,
 525                          G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, gtk_application_window_group_iface_init)
 526                          G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, gtk_application_window_map_iface_init))
 527
 528 enum {
 529   PROP_0,
 530   PROP_SHOW_MENUBAR,
 531   N_PROPS
 532 };
 533 static GParamSpec *gtk_application_window_properties[N_PROPS];
 534
 535 static void
 536 gtk_application_window_real_get_preferred_height (GtkWidget *widget,
 537                                                   gint      *minimum_height,
 538                                                   gint      *natural_height)
 539 {
 540   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 541
 542   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 543     ->get_preferred_height (widget, minimum_height, natural_height);
 544
 545   if (window->priv->menubar != NULL)
 546     {
 547       gint menubar_min_height, menubar_nat_height;
 548
 549       gtk_widget_get_preferred_height (window->priv->menubar, &menubar_min_height, &menubar_nat_height);
 550       *minimum_height += menubar_min_height;
 551       *natural_height += menubar_nat_height;
 552     }
 553 }
 554
 555 static void
 556 gtk_application_window_real_get_preferred_height_for_width (GtkWidget *widget,
 557                                                             gint       width,
 558                                                             gint      *minimum_height,
 559                                                             gint      *natural_height)
 560 {
 561   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 562
 563   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 564     ->get_preferred_height_for_width (widget, width, minimum_height, natural_height);
 565
 566   if (window->priv->menubar != NULL)
 567     {
 568       gint menubar_min_height, menubar_nat_height;
 569
 570       gtk_widget_get_preferred_height_for_width (window->priv->menubar, width, &menubar_min_height, &menubar_nat_height);
 571       *minimum_height += menubar_min_height;
 572       *natural_height += menubar_nat_height;
 573     }
 574 }
 575
 576 static void
 577 gtk_application_window_real_get_preferred_width (GtkWidget *widget,
 578                                                  gint      *minimum_width,
 579                                                  gint      *natural_width)
 580 {
 581   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 582
 583   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 584     ->get_preferred_width (widget, minimum_width, natural_width);
 585
 586   if (window->priv->menubar != NULL)
 587     {
 588       gint menubar_min_width, menubar_nat_width;
 589
 590       gtk_widget_get_preferred_width (window->priv->menubar, &menubar_min_width, &menubar_nat_width);
 591       *minimum_width = MAX (*minimum_width, menubar_min_width);
 592       *natural_width = MAX (*natural_width, menubar_nat_width);
 593     }
 594 }
 595
 596 static void
 597 gtk_application_window_real_get_preferred_width_for_height (GtkWidget *widget,
 598                                                             gint       height,
 599                                                             gint      *minimum_width,
 600                                                             gint      *natural_width)
 601 {
 602   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 603
 604   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 605     ->get_preferred_width_for_height (widget, height, minimum_width, natural_width);
 606
 607   if (window->priv->menubar != NULL)
 608     {
 609       gint menubar_min_width, menubar_nat_width;
 610
 611       gtk_widget_get_preferred_width_for_height (window->priv->menubar, height, &menubar_min_width, &menubar_nat_width);
 612       *minimum_width = MAX (*minimum_width, menubar_min_width);
 613       *natural_width = MAX (*natural_width, menubar_nat_width);
 614     }
 615 }
 616
 617 static void
 618 gtk_application_window_real_size_allocate (GtkWidget     *widget,
 619                                            GtkAllocation *allocation)
 620 {
 621   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 622
 623   if (window->priv->menubar != NULL)
 624     {
 625       GtkAllocation menubar_allocation = *allocation;
 626       gint menubar_min_height, menubar_nat_height;
 627       GtkWidget *child;
 628
 629       gtk_widget_get_preferred_height_for_width (window->priv->menubar, allocation->width, &menubar_min_height, &menubar_nat_height);
 630
 631       menubar_allocation.height = menubar_min_height;
 632       gtk_widget_size_allocate (window->priv->menubar, &menubar_allocation);
 633
 634       child = gtk_bin_get_child (GTK_BIN (window));
 635       if (child != NULL && gtk_widget_get_visible (child))
 636         {
 637           GtkAllocation child_allocation = *allocation;
 638           gint border_width;
 639
 640           child_allocation.height = MAX (1, child_allocation.height - menubar_min_height);
 641
 642           border_width = gtk_container_get_border_width (GTK_CONTAINER (window));
 643           child_allocation.x += border_width;
 644           child_allocation.y += border_width + menubar_min_height;
 645           child_allocation.width -= border_width * 2;
 646           child_allocation.height -= border_width * 2 - menubar_min_height;
 647           gtk_widget_size_allocate (child, &child_allocation);
 648         }
 649
 650       gtk_widget_set_allocation (widget, allocation);
 651     }
 652   else
 653     GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 654       ->size_allocate (widget, allocation);
 655 }
 656
 657 static void
 658 gtk_application_window_real_realize (GtkWidget *widget)
 659 {
 660   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 661   GtkApplication *application;
 662   GtkSettings *settings;
 663
 664   application = gtk_window_get_application (GTK_WINDOW (window));
 665   settings = gtk_widget_get_settings (widget);
 666
 667   g_signal_connect (settings, "notify::gtk-shell-shows-app-menu",
 668                     G_CALLBACK (gtk_application_window_shell_shows_app_menu_changed), window);
 669   g_signal_connect (settings, "notify::gtk-shell-shows-menubar",
 670                     G_CALLBACK (gtk_application_window_shell_shows_menubar_changed), window);
 671
 672   if (window->priv->muxer == NULL)
 673     {
 674       GActionMuxer *muxer;
 675
 676       muxer = g_action_muxer_new ();
 677       g_action_muxer_insert (muxer, "app", G_ACTION_GROUP (application));
 678       g_action_muxer_insert (muxer, "win", G_ACTION_GROUP (window));
 679       window->priv->muxer = G_ACTION_OBSERVABLE (muxer);
 680     }
 681
 682   gtk_application_window_update_shell_shows_app_menu (window, settings);
 683   gtk_application_window_update_shell_shows_menubar (window, settings);
 684   gtk_application_window_update_menubar (window);
 685   gtk_application_window_update_accels (window);
 686
 687   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 688     ->realize (widget);
 689
 690 #ifdef GDK_WINDOWING_X11
 691   {
 692     GdkWindow *gdkwindow;
 693
 694     gdkwindow = gtk_widget_get_window (GTK_WIDGET (window));
 695
 696     if (GDK_IS_X11_WINDOW (gdkwindow))
 697       {
 698         const gchar *unique_id;
 699         const gchar *app_id;
 700
 701         gdk_x11_window_set_utf8_property (gdkwindow, "_DBUS_OBJECT_PATH", window->priv->object_path);
 702
 703         unique_id = g_dbus_connection_get_unique_name (window->priv->session);
 704         gdk_x11_window_set_utf8_property (gdkwindow, "_DBUS_UNIQUE_NAME", unique_id);
 705
 706         app_id = g_application_get_application_id (G_APPLICATION (application));
 707         gdk_x11_window_set_utf8_property (gdkwindow, "_DBUS_APPLICATION_ID", app_id);
 708       }
 709   }
 710 #endif
 711 }
 712
 713 static void
 714 gtk_application_window_real_unrealize (GtkWidget *widget)
 715 {
 716   GtkSettings *settings;
 717
 718   settings = gtk_widget_get_settings (widget);
 719
 720   g_signal_handlers_disconnect_by_func (settings, gtk_application_window_shell_shows_app_menu_changed, widget);
 721   g_signal_handlers_disconnect_by_func (settings, gtk_application_window_shell_shows_menubar_changed, widget);
 722
 723   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 724     ->unrealize (widget);
 725 }
 726
 727 gboolean
 728 gtk_application_window_publish (GtkApplicationWindow *window,
 729                                 GDBusConnection      *session,
 730                                 const gchar          *object_path)
 731 {
 732   g_assert (window->priv->session == NULL);
 733   g_assert (window->priv->export_id == 0);
 734   g_assert (window->priv->object_path == NULL);
 735
 736   window->priv->export_id = g_dbus_connection_export_action_group (session, object_path,
 737                                                                    G_ACTION_GROUP (window->priv->actions),
 738                                                                    NULL);
 739
 740   if (window->priv->export_id == 0)
 741     return FALSE;
 742
 743   window->priv->session = session;
 744   window->priv->object_path = g_strdup (object_path);
 745
 746   return TRUE;
 747 }
 748
 749 void
 750 gtk_application_window_unpublish (GtkApplicationWindow *window)
 751 {
 752   g_assert (window->priv->session != NULL);
 753   g_assert (window->priv->export_id != 0);
 754   g_assert (window->priv->object_path != NULL);
 755
 756   g_dbus_connection_unexport_action_group (window->priv->session, window->priv->export_id);
 757   window->priv->session = NULL;
 758   window->priv->export_id = 0;
 759
 760   g_free (window->priv->object_path);
 761   window->priv->object_path = NULL;
 762 }
 763
 764 static void
 765 gtk_application_window_real_map (GtkWidget *widget)
 766 {
 767   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 768
 769   /* XXX could eliminate this by tweaking gtk_window_map */
 770   if (window->priv->menubar)
 771     gtk_widget_map (window->priv->menubar);
 772
 773   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 774     ->map (widget);
 775 }
 776
 777 static void
 778 gtk_application_window_real_forall_internal (GtkContainer *container,
 779                                              gboolean      include_internal,
 780                                              GtkCallback   callback,
 781                                              gpointer      user_data)
 782 {
 783   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (container);
 784
 785   if (window->priv->menubar)
 786     callback (window->priv->menubar, user_data);
 787
 788   GTK_CONTAINER_CLASS (gtk_application_window_parent_class)
 789     ->forall (container, include_internal, callback, user_data);
 790 }
 791
 792
 793 static void
 794 gtk_application_window_get_property (GObject    *object,
 795                                      guint       prop_id,
 796                                      GValue     *value,
 797                                      GParamSpec *pspec)
 798 {
 799   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 800
 801   switch (prop_id)
 802     {
 803     case PROP_SHOW_MENUBAR:
 804       g_value_set_boolean (value, window->priv->show_menubar);
 805       break;
 806
 807     default:
 808       g_assert_not_reached ();
 809     }
 810 }
 811
 812 static void
 813 gtk_application_window_set_property (GObject      *object,
 814                                      guint         prop_id,
 815                                      const GValue *value,
 816                                      GParamSpec   *pspec)
 817 {
 818   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 819
 820   switch (prop_id)
 821     {
 822     case PROP_SHOW_MENUBAR:
 823       gtk_application_window_set_show_menubar (window, g_value_get_boolean (value));
 824       break;
 825
 826     default:
 827       g_assert_not_reached ();
 828     }
 829 }
 830
 831 static void
 832 gtk_application_window_dispose (GObject *object)
 833 {
 834   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 835
 836   if (window->priv->menubar)
 837     {
 838       gtk_widget_unparent (window->priv->menubar);
 839       window->priv->menubar = NULL;
 840     }
 841
 842   free_accel_closures (window);
 843
 844   g_clear_object (&window->priv->app_menu_section);
 845   g_clear_object (&window->priv->menubar_section);
 846   g_clear_object (&window->priv->actions);
 847   g_clear_object (&window->priv->accels);
 848   g_clear_object (&window->priv->muxer);
 849
 850   G_OBJECT_CLASS (gtk_application_window_parent_class)
 851     ->dispose (object);
 852 }
 853
 854 static void
 855 gtk_application_window_init (GtkApplicationWindow *window)
 856 {
 857   window->priv = G_TYPE_INSTANCE_GET_PRIVATE (window, GTK_TYPE_APPLICATION_WINDOW, GtkApplicationWindowPrivate);
 858
 859   window->priv->actions = gtk_application_window_actions_new (window);
 860   window->priv->app_menu_section = g_menu_new ();
 861   window->priv->menubar_section = g_menu_new ();
 862   window->priv->accels = gtk_accel_group_new ();
 863   gtk_window_add_accel_group (GTK_WINDOW (window), window->priv->accels);
 864
 865   /* window->priv->actions is the one and only ref on the group, so when
 866    * we dispose, the action group will die, disconnecting all signals.
 867    */
 868   g_signal_connect_swapped (window->priv->actions, "action-added",
 869                             G_CALLBACK (g_action_group_action_added), window);
 870   g_signal_connect_swapped (window->priv->actions, "action-enabled-changed",
 871                             G_CALLBACK (g_action_group_action_enabled_changed), window);
 872   g_signal_connect_swapped (window->priv->actions, "action-state-changed",
 873                             G_CALLBACK (g_action_group_action_state_changed), window);
 874   g_signal_connect_swapped (window->priv->actions, "action-removed",
 875                             G_CALLBACK (g_action_group_action_removed), window);
 876 }
 877
 878 static void
 879 gtk_application_window_class_init (GtkApplicationWindowClass *class)
 880 {
 881   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 882   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 883   GObjectClass *object_class = G_OBJECT_CLASS (class);
 884
 885   container_class->forall = gtk_application_window_real_forall_internal;
 886   widget_class->get_preferred_height = gtk_application_window_real_get_preferred_height;
 887   widget_class->get_preferred_height_for_width = gtk_application_window_real_get_preferred_height_for_width;
 888   widget_class->get_preferred_width = gtk_application_window_real_get_preferred_width;
 889   widget_class->get_preferred_width_for_height = gtk_application_window_real_get_preferred_width_for_height;
 890   widget_class->size_allocate = gtk_application_window_real_size_allocate;
 891   widget_class->realize = gtk_application_window_real_realize;
 892   widget_class->unrealize = gtk_application_window_real_unrealize;
 893   widget_class->map = gtk_application_window_real_map;
 894   object_class->get_property = gtk_application_window_get_property;
 895   object_class->set_property = gtk_application_window_set_property;
 896   object_class->dispose = gtk_application_window_dispose;
 897
 898   /**
 899    * GtkApplicationWindow:show-menubar:
 900    *
 901    * If this property is %TRUE, the window will display a menubar
 902    * that includes the app menu and menubar, unless these are
 903    * shown by the desktop shell. See g_application_set_app_menu()
 904    * and g_application_set_menubar().
 905    *
 906    * If %FALSE, the window will not display a menubar, regardless
 907    * of whether the desktop shell is showing the menus or not.
 908    */
 909   gtk_application_window_properties[PROP_SHOW_MENUBAR] =
 910     g_param_spec_boolean ("show-menubar",
 911                           P_("Show a menubar"),
 912                           P_("TRUE if the window should show a "
 913                              "menubar at the top of the window"),
 914                           TRUE, G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE);
 915   g_object_class_install_properties (object_class, N_PROPS, gtk_application_window_properties);
 916   g_type_class_add_private (class, sizeof (GtkApplicationWindowPrivate));
 917 }
 918
 919 /**
 920  * gtk_application_window_new:
 921  * @application: a #GtkApplication
 922  *
 923  * Creates a new #GtkApplicationWindow.
 924  *
 925  * Returns: a newly created #GtkApplicationWindow
 926  *
 927  * Since: 3.4
 928  */
 929 GtkWidget *
 930 gtk_application_window_new (GtkApplication *application)
 931 {
 932   g_return_val_if_fail (GTK_IS_APPLICATION (application), NULL);
 933
 934   return g_object_new (GTK_TYPE_APPLICATION_WINDOW,
 935                        "application", application,
 936                        NULL);
 937 }
 938
 939 /**
 940  * gtk_application_window_get_show_menubar:
 941  * @window: a #GtkApplicationWindow
 942  *
 943  * Returns whether the window will display a menubar for the app menu
 944  * and menubar as needed.
 945  *
 946  * Returns: %TRUE if @window will display a menubar when needed
 947  *
 948  * Since: 3.4
 949  */
 950 gboolean
 951 gtk_application_window_get_show_menubar (GtkApplicationWindow *window)
 952 {
 953   return window->priv->show_menubar;
 954 }
 955
 956 /**
 957  * gtk_application_window_set_show_menubar:
 958  * @window: a #GtkApplicationWindow
 959  * @show_menubar: whether to show a menubar when needed
 960  *
 961  * Sets whether the window will display a menubar for the app menu
 962  * and menubar as needed.
 963  *
 964  * Since: 3.4
 965  */
 966 void
 967 gtk_application_window_set_show_menubar (GtkApplicationWindow *window,
 968                                          gboolean              show_menubar)
 969 {
 970   g_return_if_fail (GTK_IS_APPLICATION_WINDOW (window));
 971
 972   show_menubar = !!show_menubar;
 973
 974   if (window->priv->show_menubar != show_menubar)
 975     {
 976       window->priv->show_menubar = show_menubar;
 977
 978       gtk_application_window_update_menubar (window);
 979
 980       g_object_notify_by_pspec (G_OBJECT (window), gtk_application_window_properties[PROP_SHOW_MENUBAR]);
 981     }
 982 }