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, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Author: Ryan Lortie <desrt@desrt.ca>
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtkapplicationwindow.h"
  23
  24 #include "gtkapplicationprivate.h"
  25 #include "gtkwidgetprivate.h"
  26 #include "gtkwindowprivate.h"
  27 #include "gtkaccelgroup.h"
  28 #include "gtkaccelmap.h"
  29 #include "gtkmenubar.h"
  30 #include "gtkintl.h"
  31 #include "gtksettings.h"
  32
  33 #include <gdk/gdk.h>
  34 #ifdef GDK_WINDOWING_X11
  35 #include <gdk/x11/gdkx.h>
  36 #endif
  37
  38 #ifdef HAVE_GIO_UNIX
  39 #include <gio/gdesktopappinfo.h>
  40 #endif
  41
  42 /**
  43  * SECTION:gtkapplicationwindow
  44  * @title: GtkApplicationWindow
  45  * @short_description: GtkWindow subclass with GtkApplication support
  46  *
  47  * GtkApplicationWindow is a #GtkWindow subclass that offers some
  48  * extra functionality for better integration with #GtkApplication
  49  * features.  Notably, it can handle both the application menu as well
  50  * as the menubar. See gtk_application_set_app_menu() and
  51  * gtk_application_set_menubar().
  52  *
  53  * This class implements the #GActionGroup and #GActionMap interfaces,
  54  * to let you add window-specific actions that will be exported by the
  55  * associated #GtkApplication, together with its application-wide
  56  * actions.  Window-specific actions are prefixed with the "win."
  57  * prefix and application-wide actions are prefixed with the "app."
  58  * prefix.  Actions must be addressed with the prefixed name when
  59  * referring to them from a #GMenuModel.
  60  *
  61  * Note that widgets that are placed inside a GtkApplicationWindow
  62  * can also activate these actions, if they implement the
  63  * GtkActionable interface.
  64  *
  65  * As with #GtkApplication, the GDK lock will be acquired when
  66  * processing actions arriving from other processes and should therefore
  67  * be held when activating actions locally (if GDK threads are enabled).
  68  *
  69  * The settings #GtkSettings:gtk-shell-shows-app-menu and
  70  * #GtkSettings:gtk-shell-shows-menubar tell GTK+ whether the
  71  * desktop environment is showing the application menu and menubar
  72  * models outside the application as part of the desktop shell.
  73  * For instance, on OS X, both menus will be displayed remotely;
  74  * on Windows neither will be. gnome-shell (starting with version 3.4)
  75  * will display the application menu, but not the menubar.
  76  *
  77  * If the desktop environment does not display the menubar, then
  78  * #GtkApplicationWindow will automatically show a #GtkMenuBar for it.
  79  * (see the #GtkApplication docs for some screenshots of how this
  80  * looks on different platforms).
  81  * This behaviour can be overridden with the #GtkApplicationWindow:show-menubar
  82  * property. If the desktop environment does not display the application
  83  * menu, then it will automatically be included in the menubar.
  84  *
  85  * <example><title>A GtkApplicationWindow with a menubar</title>
  86  * <programlisting><![CDATA[
  87  * app = gtk_application_new ();
  88  *
  89  * builder = gtk_builder_new ();
  90  * gtk_builder_add_from_string (builder,
  91  *     "<interface>"
  92  *     "  <menu id='menubar'>"
  93  *     "    <submenu label='_Edit'>"
  94  *     "      <item label='_Copy' action='win.copy'/>"
  95  *     "      <item label='_Paste' action='win.paste'/>"
  96  *     "    </submenu>"
  97  *     "  </menu>"
  98  *     "</interface>");
  99  * gtk_application_set_menubar (G_APPLICATION (app),
 100  *                              G_MENU_MODEL (gtk_builder_get_object (builder, "menubar")));
 101  * g_object_unref (builder);
 102  *
 103  * ...
 104  *
 105  * window = gtk_application_window_new (app);
 106  * ]]>
 107  * </programlisting>
 108  * </example>
 109  *
 110  * <example><title>Handling fallback yourself</title>
 111  * <programlisting>
 112  * <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../examples/sunny.c">
 113  *  <xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback>
 114  * </xi:include>
 115  * </programlisting>
 116  * </example>
 117  *
 118  * The XML format understood by #GtkBuilder for #GMenuModel consists
 119  * of a toplevel <tag class="starttag">menu</tag> element, which contains
 120  * one or more <tag class="starttag">item</tag> elements. Each
 121  * <tag class="starttag">item</tag> element contains
 122  * <tag class="starttag">attribute</tag> and <tag class="starttag">link</tag>
 123  * elements with a mandatory name attribute.
 124  * <tag class="starttag">link</tag> elements have the same content
 125  * model as <tag class="starttag">menu</tag>.
 126  *
 127  * Attribute values can be translated using gettext, like other #GtkBuilder
 128  * content. <tag class="starttag">attribute</tag> elements can be marked for
 129  * translation with a <literal>translatable="yes"</literal> attribute.
 130  * It is also possible to specify message context and translator comments,
 131  * using the context and comments attributes. To make use of this, the
 132  * #GtkBuilder must have been given the gettext domain to use.
 133  */
 134
 135 typedef GSimpleActionGroupClass GtkApplicationWindowActionsClass;
 136 typedef struct
 137 {
 138   GSimpleActionGroup parent_instance;
 139   GtkWindow *window;
 140 } GtkApplicationWindowActions;
 141
 142 static GType gtk_application_window_actions_get_type   (void);
 143 static void  gtk_application_window_actions_iface_init (GRemoteActionGroupInterface *iface);
 144 G_DEFINE_TYPE_WITH_CODE (GtkApplicationWindowActions, gtk_application_window_actions, G_TYPE_SIMPLE_ACTION_GROUP,
 145                          G_IMPLEMENT_INTERFACE (G_TYPE_REMOTE_ACTION_GROUP, gtk_application_window_actions_iface_init))
 146
 147 static void
 148 gtk_application_window_actions_activate_action_full (GRemoteActionGroup *remote,
 149                                                      const gchar        *action_name,
 150                                                      GVariant           *parameter,
 151                                                      GVariant           *platform_data)
 152 {
 153   GtkApplicationWindowActions *actions = (GtkApplicationWindowActions *) remote;
 154   GApplication *application;
 155   GApplicationClass *class;
 156
 157   application = G_APPLICATION (gtk_window_get_application (actions->window));
 158   class = G_APPLICATION_GET_CLASS (application);
 159
 160   class->before_emit (application, platform_data);
 161   g_action_group_activate_action (G_ACTION_GROUP (actions), action_name, parameter);
 162   class->after_emit (application, platform_data);
 163 }
 164
 165 static void
 166 gtk_application_window_actions_change_action_state_full (GRemoteActionGroup *remote,
 167                                                          const gchar        *action_name,
 168                                                          GVariant           *value,
 169                                                          GVariant           *platform_data)
 170 {
 171   GtkApplicationWindowActions *actions = (GtkApplicationWindowActions *) remote;
 172   GApplication *application;
 173   GApplicationClass *class;
 174
 175   application = G_APPLICATION (gtk_window_get_application (actions->window));
 176   class = G_APPLICATION_GET_CLASS (application);
 177
 178   class->before_emit (application, platform_data);
 179   g_action_group_change_action_state (G_ACTION_GROUP (actions), action_name, value);
 180   class->after_emit (application, platform_data);
 181 }
 182
 183 static void
 184 gtk_application_window_actions_init (GtkApplicationWindowActions *actions)
 185 {
 186 }
 187
 188 static void
 189 gtk_application_window_actions_iface_init (GRemoteActionGroupInterface *iface)
 190 {
 191   iface->activate_action_full = gtk_application_window_actions_activate_action_full;
 192   iface->change_action_state_full = gtk_application_window_actions_change_action_state_full;
 193 }
 194
 195 static void
 196 gtk_application_window_actions_class_init (GtkApplicationWindowActionsClass *class)
 197 {
 198 }
 199
 200 static GSimpleActionGroup *
 201 gtk_application_window_actions_new (GtkApplicationWindow *window)
 202 {
 203   GtkApplicationWindowActions *actions;
 204
 205   actions = g_object_new (gtk_application_window_actions_get_type (), NULL);
 206   actions->window = GTK_WINDOW (window);
 207
 208   return G_SIMPLE_ACTION_GROUP (actions);
 209 }
 210
 211 /* Now onto GtkApplicationWindow... */
 212
 213 struct _GtkApplicationWindowPrivate
 214 {
 215   GSimpleActionGroup *actions;
 216   GtkWidget *menubar;
 217   GtkAccelGroup *accels;
 218   GSList *accel_closures;
 219
 220   GMenu *app_menu_section;
 221   GMenu *menubar_section;
 222   gboolean show_menubar;
 223
 224   GDBusConnection *session;
 225   gchar           *object_path;
 226   guint            export_id;
 227
 228   guint            id;
 229 };
 230
 231 static void
 232 gtk_application_window_update_menubar (GtkApplicationWindow *window)
 233 {
 234   gboolean should_have_menubar;
 235   gboolean have_menubar;
 236
 237   have_menubar = window->priv->menubar != NULL;
 238
 239   should_have_menubar = window->priv->show_menubar &&
 240                         (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) ||
 241                          g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)));
 242
 243   if (have_menubar && !should_have_menubar)
 244     {
 245       gtk_widget_unparent (window->priv->menubar);
 246       window->priv->menubar = NULL;
 247
 248       gtk_widget_queue_resize (GTK_WIDGET (window));
 249     }
 250
 251   if (!have_menubar && should_have_menubar)
 252     {
 253       GMenu *combined;
 254
 255       combined = g_menu_new ();
 256       g_menu_append_section (combined, NULL, G_MENU_MODEL (window->priv->app_menu_section));
 257       g_menu_append_section (combined, NULL, G_MENU_MODEL (window->priv->menubar_section));
 258
 259       window->priv->menubar = gtk_menu_bar_new_from_model (G_MENU_MODEL (combined));
 260       gtk_widget_set_parent (window->priv->menubar, GTK_WIDGET (window));
 261       gtk_widget_show_all (window->priv->menubar);
 262       g_object_unref (combined);
 263
 264       gtk_widget_queue_resize (GTK_WIDGET (window));
 265     }
 266 }
 267
 268 static gchar *
 269 gtk_application_window_get_app_desktop_name (void)
 270 {
 271   gchar *retval = NULL;
 272
 273 #ifdef HAVE_GIO_UNIX
 274   GDesktopAppInfo *app_info;
 275   const gchar *app_name = NULL;
 276   gchar *desktop_file;
 277
 278   desktop_file = g_strconcat (g_get_prgname (), ".desktop", NULL);
 279   app_info = g_desktop_app_info_new (desktop_file);
 280   g_free (desktop_file);
 281
 282   if (app_info != NULL)
 283     app_name = g_app_info_get_name (G_APP_INFO (app_info));
 284
 285   if (app_name != NULL)
 286     retval = g_strdup (app_name);
 287
 288   g_clear_object (&app_info);
 289 #endif /* HAVE_GIO_UNIX */
 290
 291   return retval;
 292 }
 293
 294 static void
 295 gtk_application_window_update_shell_shows_app_menu (GtkApplicationWindow *window,
 296                                                     GtkSettings          *settings)
 297 {
 298   gboolean shown_by_shell;
 299
 300   g_object_get (settings, "gtk-shell-shows-app-menu", &shown_by_shell, NULL);
 301
 302   if (shown_by_shell)
 303     {
 304       /* the shell shows it, so don't show it locally */
 305       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) != 0)
 306         g_menu_remove (window->priv->app_menu_section, 0);
 307     }
 308   else
 309     {
 310       /* the shell does not show it, so make sure we show it */
 311       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->app_menu_section)) == 0)
 312         {
 313           GMenuModel *app_menu;
 314
 315           app_menu = gtk_application_get_app_menu (gtk_window_get_application (GTK_WINDOW (window)));
 316
 317           if (app_menu != NULL)
 318             {
 319               const gchar *app_name;
 320               gchar *name;
 321
 322               app_name = g_get_application_name ();
 323               if (app_name != g_get_prgname ())
 324                 {
 325                   /* the app has set its application name, use it */
 326                   name = g_strdup (app_name);
 327                 }
 328               else
 329                 {
 330                   /* get the name from .desktop file */
 331                   name = gtk_application_window_get_app_desktop_name ();
 332                   if (name == NULL)
 333                     name = g_strdup (_("Application"));
 334                 }
 335
 336               g_menu_append_submenu (window->priv->app_menu_section, name, app_menu);
 337               g_free (name);
 338             }
 339         }
 340     }
 341 }
 342
 343 static void
 344 gtk_application_window_update_shell_shows_menubar (GtkApplicationWindow *window,
 345                                                    GtkSettings          *settings)
 346 {
 347   gboolean shown_by_shell;
 348
 349   g_object_get (settings, "gtk-shell-shows-menubar", &shown_by_shell, NULL);
 350
 351   if (shown_by_shell)
 352     {
 353       /* the shell shows it, so don't show it locally */
 354       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)) != 0)
 355         g_menu_remove (window->priv->menubar_section, 0);
 356     }
 357   else
 358     {
 359       /* the shell does not show it, so make sure we show it */
 360       if (g_menu_model_get_n_items (G_MENU_MODEL (window->priv->menubar_section)) == 0)
 361         {
 362           GMenuModel *menubar;
 363
 364           menubar = gtk_application_get_menubar (gtk_window_get_application (GTK_WINDOW (window)));
 365
 366           if (menubar != NULL)
 367             g_menu_append_section (window->priv->menubar_section, NULL, menubar);
 368         }
 369     }
 370 }
 371
 372 typedef struct {
 373   GClosure closure;
 374   gchar *action_name;
 375   GVariant *parameter;
 376 } AccelClosure;
 377
 378 static void
 379 accel_activate (GClosure     *closure,
 380                 GValue       *return_value,
 381                 guint         n_param_values,
 382                 const GValue *param_values,
 383                 gpointer      invocation_hint,
 384                 gpointer      marshal_data)
 385 {
 386   AccelClosure *aclosure = (AccelClosure*)closure;
 387   GActionGroup *actions;
 388
 389   actions = G_ACTION_GROUP (closure->data);
 390   if (g_action_group_get_action_enabled (actions, aclosure->action_name))
 391     {
 392        g_action_group_activate_action (actions, aclosure->action_name, aclosure->parameter);
 393
 394       /* we handled the accelerator */
 395       g_value_set_boolean (return_value, TRUE);
 396     }
 397 }
 398
 399 static void
 400 free_accel_closures (GtkApplicationWindow *window)
 401 {
 402   GSList *l;
 403
 404   for (l = window->priv->accel_closures; l; l = l->next)
 405     {
 406        AccelClosure *closure = l->data;
 407
 408        gtk_accel_group_disconnect (window->priv->accels, &closure->closure);
 409
 410        g_object_unref (closure->closure.data);
 411        if (closure->parameter)
 412          g_variant_unref (closure->parameter);
 413        g_free (closure->action_name);
 414        g_closure_invalidate (&closure->closure);
 415        g_closure_unref (&closure->closure);
 416     }
 417   g_slist_free (window->priv->accel_closures);
 418   window->priv->accel_closures = NULL;
 419 }
 420
 421 /* Hack. We iterate over the accel map instead of the actions,
 422  * in order to pull the parameters out of accel map entries
 423  */
 424 static void
 425 add_accel_closure (gpointer         data,
 426                    const gchar     *accel_path,
 427                    guint            accel_key,
 428                    GdkModifierType  accel_mods,
 429                    gboolean         changed)
 430 {
 431   GtkApplicationWindow *window = data;
 432   GActionGroup *actions;
 433   const gchar *path;
 434   const gchar *p;
 435   gchar *action_name;
 436   GVariant *parameter;
 437   AccelClosure *closure;
 438
 439   if (accel_key == 0)
 440     return;
 441
 442   if (!g_str_has_prefix (accel_path, "<GAction>/"))
 443     return;
 444
 445   path = accel_path + strlen ("<GAction>/");
 446   p = strchr (path, '/');
 447   if (p)
 448     {
 449       action_name = g_strndup (path, p - path);
 450       parameter = g_variant_parse (NULL, p + 1, NULL, NULL, NULL);
 451       if (!parameter)
 452         g_warning ("Failed to parse parameter from '%s'\n", accel_path);
 453     }
 454   else
 455     {
 456       action_name = g_strdup (path);
 457       parameter = NULL;
 458     }
 459
 460   actions = G_ACTION_GROUP (_gtk_widget_get_action_muxer (GTK_WIDGET (window)));
 461   if (g_action_group_has_action (actions, action_name))
 462     {
 463       closure = (AccelClosure*) g_closure_new_object (sizeof (AccelClosure), g_object_ref (actions));
 464       g_closure_set_marshal (&closure->closure, accel_activate);
 465
 466       closure->action_name = g_strdup (action_name);
 467       closure->parameter = parameter ? g_variant_ref_sink (parameter) : NULL;
 468
 469       window->priv->accel_closures = g_slist_prepend (window->priv->accel_closures, g_closure_ref (&closure->closure));
 470       g_closure_sink (&closure->closure);
 471
 472       gtk_accel_group_connect_by_path (window->priv->accels, accel_path, &closure->closure);
 473     }
 474   else if (parameter)
 475     {
 476       g_variant_unref (parameter);
 477     }
 478
 479   g_free (action_name);
 480 }
 481
 482 static void
 483 gtk_application_window_update_accels (GtkApplicationWindow *window)
 484 {
 485   free_accel_closures (window);
 486
 487   gtk_accel_map_foreach (window, add_accel_closure);
 488 }
 489
 490 static void
 491 gtk_application_window_shell_shows_app_menu_changed (GObject    *object,
 492                                                      GParamSpec *pspec,
 493                                                      gpointer    user_data)
 494 {
 495   GtkApplicationWindow *window = user_data;
 496
 497   gtk_application_window_update_shell_shows_app_menu (window, GTK_SETTINGS (object));
 498   gtk_application_window_update_menubar (window);
 499 }
 500
 501 static void
 502 gtk_application_window_shell_shows_menubar_changed (GObject    *object,
 503                                                     GParamSpec *pspec,
 504                                                     gpointer    user_data)
 505 {
 506   GtkApplicationWindow *window = user_data;
 507
 508   gtk_application_window_update_shell_shows_menubar (window, GTK_SETTINGS (object));
 509   gtk_application_window_update_menubar (window);
 510 }
 511
 512 static gchar **
 513 gtk_application_window_list_actions (GActionGroup *group)
 514 {
 515   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 516
 517   return g_action_group_list_actions (G_ACTION_GROUP (window->priv->actions));
 518 }
 519
 520 static gboolean
 521 gtk_application_window_query_action (GActionGroup        *group,
 522                                      const gchar         *action_name,
 523                                      gboolean            *enabled,
 524                                      const GVariantType **parameter_type,
 525                                      const GVariantType **state_type,
 526                                      GVariant           **state_hint,
 527                                      GVariant           **state)
 528 {
 529   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 530
 531   return g_action_group_query_action (G_ACTION_GROUP (window->priv->actions),
 532                                       action_name, enabled, parameter_type, state_type, state_hint, state);
 533 }
 534
 535 static void
 536 gtk_application_window_activate_action (GActionGroup *group,
 537                                         const gchar  *action_name,
 538                                         GVariant     *parameter)
 539 {
 540   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 541
 542   return g_action_group_activate_action (G_ACTION_GROUP (window->priv->actions), action_name, parameter);
 543 }
 544
 545 static void
 546 gtk_application_window_change_action_state (GActionGroup *group,
 547                                             const gchar  *action_name,
 548                                             GVariant     *state)
 549 {
 550   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (group);
 551
 552   return g_action_group_change_action_state (G_ACTION_GROUP (window->priv->actions), action_name, state);
 553 }
 554
 555 static GAction *
 556 gtk_application_window_lookup_action (GActionMap  *action_map,
 557                                       const gchar *action_name)
 558 {
 559   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 560
 561   return g_action_map_lookup_action (G_ACTION_MAP (window->priv->actions), action_name);
 562 }
 563
 564 static void
 565 gtk_application_window_add_action (GActionMap *action_map,
 566                                    GAction    *action)
 567 {
 568   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 569
 570   g_action_map_add_action (G_ACTION_MAP (window->priv->actions), action);
 571 }
 572
 573 static void
 574 gtk_application_window_remove_action (GActionMap  *action_map,
 575                                       const gchar *action_name)
 576 {
 577   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (action_map);
 578
 579   g_action_map_remove_action (G_ACTION_MAP (window->priv->actions), action_name);
 580 }
 581
 582 static void
 583 gtk_application_window_group_iface_init (GActionGroupInterface *iface)
 584 {
 585   iface->list_actions = gtk_application_window_list_actions;
 586   iface->query_action = gtk_application_window_query_action;
 587   iface->activate_action = gtk_application_window_activate_action;
 588   iface->change_action_state = gtk_application_window_change_action_state;
 589 }
 590
 591 static void
 592 gtk_application_window_map_iface_init (GActionMapInterface *iface)
 593 {
 594   iface->lookup_action = gtk_application_window_lookup_action;
 595   iface->add_action = gtk_application_window_add_action;
 596   iface->remove_action = gtk_application_window_remove_action;
 597 }
 598
 599 G_DEFINE_TYPE_WITH_CODE (GtkApplicationWindow, gtk_application_window, GTK_TYPE_WINDOW,
 600                          G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_GROUP, gtk_application_window_group_iface_init)
 601                          G_IMPLEMENT_INTERFACE (G_TYPE_ACTION_MAP, gtk_application_window_map_iface_init))
 602
 603 enum {
 604   PROP_0,
 605   PROP_SHOW_MENUBAR,
 606   N_PROPS
 607 };
 608 static GParamSpec *gtk_application_window_properties[N_PROPS];
 609
 610 static void
 611 gtk_application_window_real_get_preferred_height (GtkWidget *widget,
 612                                                   gint      *minimum_height,
 613                                                   gint      *natural_height)
 614 {
 615   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 616
 617   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 618     ->get_preferred_height (widget, minimum_height, natural_height);
 619
 620   if (window->priv->menubar != NULL)
 621     {
 622       gint menubar_min_height, menubar_nat_height;
 623
 624       gtk_widget_get_preferred_height (window->priv->menubar, &menubar_min_height, &menubar_nat_height);
 625       *minimum_height += menubar_min_height;
 626       *natural_height += menubar_nat_height;
 627     }
 628 }
 629
 630 static void
 631 gtk_application_window_real_get_preferred_height_for_width (GtkWidget *widget,
 632                                                             gint       width,
 633                                                             gint      *minimum_height,
 634                                                             gint      *natural_height)
 635 {
 636   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 637
 638   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 639     ->get_preferred_height_for_width (widget, width, minimum_height, natural_height);
 640
 641   if (window->priv->menubar != NULL)
 642     {
 643       gint menubar_min_height, menubar_nat_height;
 644
 645       gtk_widget_get_preferred_height_for_width (window->priv->menubar, width, &menubar_min_height, &menubar_nat_height);
 646       *minimum_height += menubar_min_height;
 647       *natural_height += menubar_nat_height;
 648     }
 649 }
 650
 651 static void
 652 gtk_application_window_real_get_preferred_width (GtkWidget *widget,
 653                                                  gint      *minimum_width,
 654                                                  gint      *natural_width)
 655 {
 656   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 657
 658   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 659     ->get_preferred_width (widget, minimum_width, natural_width);
 660
 661   if (window->priv->menubar != NULL)
 662     {
 663       gint menubar_min_width, menubar_nat_width;
 664
 665       gtk_widget_get_preferred_width (window->priv->menubar, &menubar_min_width, &menubar_nat_width);
 666       *minimum_width = MAX (*minimum_width, menubar_min_width);
 667       *natural_width = MAX (*natural_width, menubar_nat_width);
 668     }
 669 }
 670
 671 static void
 672 gtk_application_window_real_get_preferred_width_for_height (GtkWidget *widget,
 673                                                             gint       height,
 674                                                             gint      *minimum_width,
 675                                                             gint      *natural_width)
 676 {
 677   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 678   gint menubar_height;
 679
 680   if (window->priv->menubar != NULL)
 681     gtk_widget_get_preferred_height (window->priv->menubar, &menubar_height, NULL);
 682   else
 683     menubar_height = 0;
 684
 685   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 686     ->get_preferred_width_for_height (widget, height - menubar_height, minimum_width, natural_width);
 687
 688   if (window->priv->menubar != NULL)
 689     {
 690       gint menubar_min_width, menubar_nat_width;
 691
 692       gtk_widget_get_preferred_width_for_height (window->priv->menubar, menubar_height, &menubar_min_width, &menubar_nat_width);
 693       *minimum_width = MAX (*minimum_width, menubar_min_width);
 694       *natural_width = MAX (*natural_width, menubar_nat_width);
 695     }
 696 }
 697
 698 static void
 699 gtk_application_window_real_size_allocate (GtkWidget     *widget,
 700                                            GtkAllocation *allocation)
 701 {
 702   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 703
 704   if (window->priv->menubar != NULL)
 705     {
 706       GtkAllocation menubar_allocation = *allocation;
 707       gint menubar_height;
 708       GtkWidget *child;
 709
 710       _gtk_window_set_allocation (GTK_WINDOW (widget), allocation);
 711
 712       gtk_widget_get_preferred_height_for_width (window->priv->menubar, allocation->width, &menubar_height, NULL);
 713
 714       menubar_allocation.height = menubar_height;
 715       gtk_widget_size_allocate (window->priv->menubar, &menubar_allocation);
 716
 717       child = gtk_bin_get_child (GTK_BIN (window));
 718       if (child != NULL && gtk_widget_get_visible (child))
 719         {
 720           GtkAllocation child_allocation = *allocation;
 721           gint border_width;
 722
 723           border_width = gtk_container_get_border_width (GTK_CONTAINER (window));
 724           child_allocation.x += border_width;
 725           child_allocation.y += border_width + menubar_height;
 726           child_allocation.width = MAX (1, child_allocation.width - border_width * 2);
 727           child_allocation.height = MAX (1, child_allocation.height - border_width * 2 - menubar_height);
 728
 729           gtk_widget_size_allocate (child, &child_allocation);
 730         }
 731     }
 732   else
 733     GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 734       ->size_allocate (widget, allocation);
 735 }
 736
 737 static void
 738 gtk_application_window_real_realize (GtkWidget *widget)
 739 {
 740   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 741   GtkApplication *application;
 742   GtkSettings *settings;
 743
 744   application = gtk_window_get_application (GTK_WINDOW (window));
 745   settings = gtk_widget_get_settings (widget);
 746
 747   g_signal_connect (settings, "notify::gtk-shell-shows-app-menu",
 748                     G_CALLBACK (gtk_application_window_shell_shows_app_menu_changed), window);
 749   g_signal_connect (settings, "notify::gtk-shell-shows-menubar",
 750                     G_CALLBACK (gtk_application_window_shell_shows_menubar_changed), window);
 751
 752   gtk_application_window_update_shell_shows_app_menu (window, settings);
 753   gtk_application_window_update_shell_shows_menubar (window, settings);
 754   gtk_application_window_update_menubar (window);
 755   gtk_application_window_update_accels (window);
 756
 757   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 758     ->realize (widget);
 759
 760 #ifdef GDK_WINDOWING_X11
 761   {
 762     GdkWindow *gdkwindow;
 763
 764     gdkwindow = gtk_widget_get_window (GTK_WIDGET (window));
 765
 766     if (GDK_IS_X11_WINDOW (gdkwindow) && window->priv->session)
 767       {
 768         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_APPLICATION_ID",
 769                                           g_application_get_application_id (G_APPLICATION (application)));
 770
 771         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_UNIQUE_BUS_NAME",
 772                                           g_dbus_connection_get_unique_name (window->priv->session));
 773
 774         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_APPLICATION_OBJECT_PATH",
 775                                           g_application_get_dbus_object_path (G_APPLICATION (application)));
 776
 777         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_WINDOW_OBJECT_PATH",
 778                                           window->priv->object_path);
 779
 780         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_APP_MENU_OBJECT_PATH",
 781                                           gtk_application_get_app_menu_object_path (application));
 782
 783         gdk_x11_window_set_utf8_property (gdkwindow, "_GTK_MENUBAR_OBJECT_PATH",
 784                                           gtk_application_get_menubar_object_path (application));
 785       }
 786   }
 787 #endif
 788 }
 789
 790 static void
 791 gtk_application_window_real_unrealize (GtkWidget *widget)
 792 {
 793   GtkSettings *settings;
 794
 795   settings = gtk_widget_get_settings (widget);
 796
 797   g_signal_handlers_disconnect_by_func (settings, gtk_application_window_shell_shows_app_menu_changed, widget);
 798   g_signal_handlers_disconnect_by_func (settings, gtk_application_window_shell_shows_menubar_changed, widget);
 799
 800   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 801     ->unrealize (widget);
 802 }
 803
 804 gboolean
 805 gtk_application_window_publish (GtkApplicationWindow *window,
 806                                 GDBusConnection      *session,
 807                                 const gchar          *object_path,
 808                                 guint                 object_id)
 809 {
 810   g_assert (window->priv->session == NULL);
 811   g_assert (window->priv->export_id == 0);
 812   g_assert (window->priv->object_path == NULL);
 813   g_assert (window->priv->id == 0);
 814
 815   window->priv->export_id = g_dbus_connection_export_action_group (session, object_path,
 816                                                                    G_ACTION_GROUP (window->priv->actions),
 817                                                                    NULL);
 818
 819   if (window->priv->export_id == 0)
 820     return FALSE;
 821
 822   window->priv->session = session;
 823   window->priv->object_path = g_strdup (object_path);
 824   window->priv->id = object_id;
 825
 826   return TRUE;
 827 }
 828
 829 void
 830 gtk_application_window_unpublish (GtkApplicationWindow *window)
 831 {
 832   g_assert (window->priv->session != NULL);
 833   g_assert (window->priv->export_id != 0);
 834   g_assert (window->priv->object_path != NULL);
 835   g_assert (window->priv->id != 0);
 836
 837   g_dbus_connection_unexport_action_group (window->priv->session, window->priv->export_id);
 838   window->priv->session = NULL;
 839   window->priv->export_id = 0;
 840   window->priv->id = 0;
 841
 842   g_free (window->priv->object_path);
 843   window->priv->object_path = NULL;
 844 }
 845
 846 static void
 847 gtk_application_window_real_map (GtkWidget *widget)
 848 {
 849   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (widget);
 850
 851   /* XXX could eliminate this by tweaking gtk_window_map */
 852   if (window->priv->menubar)
 853     gtk_widget_map (window->priv->menubar);
 854
 855   GTK_WIDGET_CLASS (gtk_application_window_parent_class)
 856     ->map (widget);
 857 }
 858
 859 static void
 860 gtk_application_window_real_forall_internal (GtkContainer *container,
 861                                              gboolean      include_internal,
 862                                              GtkCallback   callback,
 863                                              gpointer      user_data)
 864 {
 865   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (container);
 866
 867   if (window->priv->menubar)
 868     callback (window->priv->menubar, user_data);
 869
 870   GTK_CONTAINER_CLASS (gtk_application_window_parent_class)
 871     ->forall (container, include_internal, callback, user_data);
 872 }
 873
 874 static void
 875 gtk_application_window_get_property (GObject    *object,
 876                                      guint       prop_id,
 877                                      GValue     *value,
 878                                      GParamSpec *pspec)
 879 {
 880   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 881
 882   switch (prop_id)
 883     {
 884     case PROP_SHOW_MENUBAR:
 885       g_value_set_boolean (value, window->priv->show_menubar);
 886       break;
 887
 888     default:
 889       g_assert_not_reached ();
 890     }
 891 }
 892
 893 static void
 894 gtk_application_window_set_property (GObject      *object,
 895                                      guint         prop_id,
 896                                      const GValue *value,
 897                                      GParamSpec   *pspec)
 898 {
 899   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 900
 901   switch (prop_id)
 902     {
 903     case PROP_SHOW_MENUBAR:
 904       gtk_application_window_set_show_menubar (window, g_value_get_boolean (value));
 905       break;
 906
 907     default:
 908       g_assert_not_reached ();
 909     }
 910 }
 911
 912 static void
 913 gtk_application_window_dispose (GObject *object)
 914 {
 915   GtkApplicationWindow *window = GTK_APPLICATION_WINDOW (object);
 916
 917   if (window->priv->menubar)
 918     {
 919       gtk_widget_unparent (window->priv->menubar);
 920       window->priv->menubar = NULL;
 921     }
 922
 923   free_accel_closures (window);
 924
 925   g_clear_object (&window->priv->app_menu_section);
 926   g_clear_object (&window->priv->menubar_section);
 927   g_clear_object (&window->priv->actions);
 928   g_clear_object (&window->priv->accels);
 929
 930   G_OBJECT_CLASS (gtk_application_window_parent_class)
 931     ->dispose (object);
 932 }
 933
 934 static void
 935 gtk_application_window_init (GtkApplicationWindow *window)
 936 {
 937   window->priv = G_TYPE_INSTANCE_GET_PRIVATE (window, GTK_TYPE_APPLICATION_WINDOW, GtkApplicationWindowPrivate);
 938
 939   window->priv->actions = gtk_application_window_actions_new (window);
 940   window->priv->app_menu_section = g_menu_new ();
 941   window->priv->menubar_section = g_menu_new ();
 942   window->priv->accels = gtk_accel_group_new ();
 943   gtk_window_add_accel_group (GTK_WINDOW (window), window->priv->accels);
 944
 945   gtk_widget_insert_action_group (GTK_WIDGET (window), "win", G_ACTION_GROUP (window->priv->actions));
 946
 947   /* window->priv->actions is the one and only ref on the group, so when
 948    * we dispose, the action group will die, disconnecting all signals.
 949    */
 950   g_signal_connect_swapped (window->priv->actions, "action-added",
 951                             G_CALLBACK (g_action_group_action_added), window);
 952   g_signal_connect_swapped (window->priv->actions, "action-enabled-changed",
 953                             G_CALLBACK (g_action_group_action_enabled_changed), window);
 954   g_signal_connect_swapped (window->priv->actions, "action-state-changed",
 955                             G_CALLBACK (g_action_group_action_state_changed), window);
 956   g_signal_connect_swapped (window->priv->actions, "action-removed",
 957                             G_CALLBACK (g_action_group_action_removed), window);
 958 }
 959
 960 static void
 961 gtk_application_window_class_init (GtkApplicationWindowClass *class)
 962 {
 963   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
 964   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
 965   GObjectClass *object_class = G_OBJECT_CLASS (class);
 966
 967   container_class->forall = gtk_application_window_real_forall_internal;
 968   widget_class->get_preferred_height = gtk_application_window_real_get_preferred_height;
 969   widget_class->get_preferred_height_for_width = gtk_application_window_real_get_preferred_height_for_width;
 970   widget_class->get_preferred_width = gtk_application_window_real_get_preferred_width;
 971   widget_class->get_preferred_width_for_height = gtk_application_window_real_get_preferred_width_for_height;
 972   widget_class->size_allocate = gtk_application_window_real_size_allocate;
 973   widget_class->realize = gtk_application_window_real_realize;
 974   widget_class->unrealize = gtk_application_window_real_unrealize;
 975   widget_class->map = gtk_application_window_real_map;
 976   object_class->get_property = gtk_application_window_get_property;
 977   object_class->set_property = gtk_application_window_set_property;
 978   object_class->dispose = gtk_application_window_dispose;
 979
 980   /**
 981    * GtkApplicationWindow:show-menubar:
 982    *
 983    * If this property is %TRUE, the window will display a menubar
 984    * that includes the app menu and menubar, unless these are
 985    * shown by the desktop shell. See gtk_application_set_app_menu()
 986    * and gtk_application_set_menubar().
 987    *
 988    * If %FALSE, the window will not display a menubar, regardless
 989    * of whether the desktop shell is showing the menus or not.
 990    */
 991   gtk_application_window_properties[PROP_SHOW_MENUBAR] =
 992     g_param_spec_boolean ("show-menubar",
 993                           P_("Show a menubar"),
 994                           P_("TRUE if the window should show a "
 995                              "menubar at the top of the window"),
 996                           TRUE, G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE);
 997   g_object_class_install_properties (object_class, N_PROPS, gtk_application_window_properties);
 998   g_type_class_add_private (class, sizeof (GtkApplicationWindowPrivate));
 999 }
1000
1001 /**
1002  * gtk_application_window_new:
1003  * @application: a #GtkApplication
1004  *
1005  * Creates a new #GtkApplicationWindow.
1006  *
1007  * Returns: a newly created #GtkApplicationWindow
1008  *
1009  * Since: 3.4
1010  */
1011 GtkWidget *
1012 gtk_application_window_new (GtkApplication *application)
1013 {
1014   g_return_val_if_fail (GTK_IS_APPLICATION (application), NULL);
1015
1016   return g_object_new (GTK_TYPE_APPLICATION_WINDOW,
1017                        "application", application,
1018                        NULL);
1019 }
1020
1021 /**
1022  * gtk_application_window_get_show_menubar:
1023  * @window: a #GtkApplicationWindow
1024  *
1025  * Returns whether the window will display a menubar for the app menu
1026  * and menubar as needed.
1027  *
1028  * Returns: %TRUE if @window will display a menubar when needed
1029  *
1030  * Since: 3.4
1031  */
1032 gboolean
1033 gtk_application_window_get_show_menubar (GtkApplicationWindow *window)
1034 {
1035   return window->priv->show_menubar;
1036 }
1037
1038 /**
1039  * gtk_application_window_set_show_menubar:
1040  * @window: a #GtkApplicationWindow
1041  * @show_menubar: whether to show a menubar when needed
1042  *
1043  * Sets whether the window will display a menubar for the app menu
1044  * and menubar as needed.
1045  *
1046  * Since: 3.4
1047  */
1048 void
1049 gtk_application_window_set_show_menubar (GtkApplicationWindow *window,
1050                                          gboolean              show_menubar)
1051 {
1052   g_return_if_fail (GTK_IS_APPLICATION_WINDOW (window));
1053
1054   show_menubar = !!show_menubar;
1055
1056   if (window->priv->show_menubar != show_menubar)
1057     {
1058       window->priv->show_menubar = show_menubar;
1059
1060       gtk_application_window_update_menubar (window);
1061
1062       g_object_notify_by_pspec (G_OBJECT (window), gtk_application_window_properties[PROP_SHOW_MENUBAR]);
1063     }
1064 }
1065
1066 GtkAccelGroup *
1067 gtk_application_window_get_accel_group (GtkApplicationWindow *window)
1068 {
1069   return window->priv->accels;
1070 }
1071
1072 /**
1073  * gtk_application_window_get_id:
1074  * @window: a #GtkApplicationWindow
1075  *
1076  * Returns the unique ID of the window. If the window has not yet been added to
1077  * a #GtkApplication, returns <literal>0</literal>.
1078  *
1079  * Returns: the unique ID for @window, or <literal>0</literal> if the window
1080  *   has not yet been added to a #GtkApplication
1081  *
1082  * Since: 3.6
1083  */
1084 guint
1085 gtk_application_window_get_id (GtkApplicationWindow *window)
1086 {
1087   g_return_val_if_fail (GTK_IS_APPLICATION_WINDOW (window), 0);
1088
1089   return window->priv->id;
1090 }