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