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

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General 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
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #define GTK_MENU_INTERNALS
  28
  29 #include "config.h"
  30 #include "gdk/gdkkeysyms.h"
  31 #include "gtkbindings.h"
  32 #include "gtkmain.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkmenubar.h"
  35 #include "gtkmenuitem.h"
  36 #include "gtksettings.h"
  37 #include "gtkintl.h"
  38 #include "gtkwindow.h"
  39 #include "gtkprivate.h"
  40
  41 #define BORDER_SPACING  0
  42 #define DEFAULT_IPADDING 1
  43
  44 /* Properties */
  45 enum {
  46   PROP_0,
  47   PROP_PACK_DIRECTION,
  48   PROP_CHILD_PACK_DIRECTION
  49 };
  50
  51 struct _GtkMenuBarPrivate
  52 {
  53   GtkPackDirection pack_direction;
  54   GtkPackDirection child_pack_direction;
  55 };
  56
  57
  58 static void gtk_menu_bar_set_property      (GObject             *object,
  59                                             guint                prop_id,
  60                                             const GValue        *value,
  61                                             GParamSpec          *pspec);
  62 static void gtk_menu_bar_get_property      (GObject             *object,
  63                                             guint                prop_id,
  64                                             GValue              *value,
  65                                             GParamSpec          *pspec);
  66 static void gtk_menu_bar_size_request      (GtkWidget       *widget,
  67                                             GtkRequisition  *requisition);
  68 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  69                                             GtkAllocation   *allocation);
  70 static void gtk_menu_bar_paint             (GtkWidget       *widget,
  71                                             GdkRectangle    *area);
  72 static gint gtk_menu_bar_expose            (GtkWidget       *widget,
  73                                             GdkEventExpose  *event);
  74 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  75                                             GtkWidget       *old_toplevel);
  76 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  77 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  78                                             GtkMenuDirectionType direction);
  79
  80 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  81
  82 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  83
  84 static void
  85 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  86 {
  87   GObjectClass *gobject_class;
  88   GtkWidgetClass *widget_class;
  89   GtkMenuShellClass *menu_shell_class;
  90
  91   GtkBindingSet *binding_set;
  92
  93   gobject_class = (GObjectClass*) class;
  94   widget_class = (GtkWidgetClass*) class;
  95   menu_shell_class = (GtkMenuShellClass*) class;
  96
  97   gobject_class->get_property = gtk_menu_bar_get_property;
  98   gobject_class->set_property = gtk_menu_bar_set_property;
  99
 100   widget_class->size_request = gtk_menu_bar_size_request;
 101   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 102   widget_class->expose_event = gtk_menu_bar_expose;
 103   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 104
 105   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 106   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 107   menu_shell_class->move_current = gtk_menu_bar_move_current;
 108
 109   binding_set = gtk_binding_set_by_class (class);
 110   gtk_binding_entry_add_signal (binding_set,
 111                                 GDK_Left, 0,
 112                                 "move-current", 1,
 113                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 114                                 GTK_MENU_DIR_PREV);
 115   gtk_binding_entry_add_signal (binding_set,
 116                                 GDK_KP_Left, 0,
 117                                 "move-current", 1,
 118                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 119                                 GTK_MENU_DIR_PREV);
 120   gtk_binding_entry_add_signal (binding_set,
 121                                 GDK_Right, 0,
 122                                 "move-current", 1,
 123                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 124                                 GTK_MENU_DIR_NEXT);
 125   gtk_binding_entry_add_signal (binding_set,
 126                                 GDK_KP_Right, 0,
 127                                 "move-current", 1,
 128                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 129                                 GTK_MENU_DIR_NEXT);
 130   gtk_binding_entry_add_signal (binding_set,
 131                                 GDK_Up, 0,
 132                                 "move-current", 1,
 133                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 134                                 GTK_MENU_DIR_PARENT);
 135   gtk_binding_entry_add_signal (binding_set,
 136                                 GDK_KP_Up, 0,
 137                                 "move-current", 1,
 138                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 139                                 GTK_MENU_DIR_PARENT);
 140   gtk_binding_entry_add_signal (binding_set,
 141                                 GDK_Down, 0,
 142                                 "move-current", 1,
 143                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 144                                 GTK_MENU_DIR_CHILD);
 145   gtk_binding_entry_add_signal (binding_set,
 146                                 GDK_KP_Down, 0,
 147                                 "move-current", 1,
 148                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 149                                 GTK_MENU_DIR_CHILD);
 150
 151   /**
 152    * GtkMenuBar:pack-direction:
 153    *
 154    * The pack direction of the menubar. It determines how
 155    * menuitems are arranged in the menubar.
 156    *
 157    * Since: 2.8
 158    */
 159   g_object_class_install_property (gobject_class,
 160                                    PROP_PACK_DIRECTION,
 161                                    g_param_spec_enum ("pack-direction",
 162                                                       P_("Pack direction"),
 163                                                       P_("The pack direction of the menubar"),
 164                                                       GTK_TYPE_PACK_DIRECTION,
 165                                                       GTK_PACK_DIRECTION_LTR,
 166                                                       GTK_PARAM_READWRITE));
 167
 168   /**
 169    * GtkMenuBar:child-pack-direction:
 170    *
 171    * The child pack direction of the menubar. It determines how
 172    * the widgets contained in child menuitems are arranged.
 173    *
 174    * Since: 2.8
 175    */
 176   g_object_class_install_property (gobject_class,
 177                                    PROP_CHILD_PACK_DIRECTION,
 178                                    g_param_spec_enum ("child-pack-direction",
 179                                                       P_("Child Pack direction"),
 180                                                       P_("The child pack direction of the menubar"),
 181                                                       GTK_TYPE_PACK_DIRECTION,
 182                                                       GTK_PACK_DIRECTION_LTR,
 183                                                       GTK_PARAM_READWRITE));
 184
 185
 186   gtk_widget_class_install_style_property (widget_class,
 187                                            g_param_spec_enum ("shadow-type",
 188                                                               P_("Shadow type"),
 189                                                               P_("Style of bevel around the menubar"),
 190                                                               GTK_TYPE_SHADOW_TYPE,
 191                                                               GTK_SHADOW_OUT,
 192                                                               GTK_PARAM_READABLE));
 193
 194   gtk_widget_class_install_style_property (widget_class,
 195                                            g_param_spec_int ("internal-padding",
 196                                                              P_("Internal padding"),
 197                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 198                                                              0,
 199                                                              G_MAXINT,
 200                                                              DEFAULT_IPADDING,
 201                                                              GTK_PARAM_READABLE));
 202
 203   gtk_settings_install_property (g_param_spec_int ("gtk-menu-bar-popup-delay",
 204                                                    P_("Delay before drop down menus appear"),
 205                                                    P_("Delay before the submenus of a menu bar appear"),
 206                                                    0,
 207                                                    G_MAXINT,
 208                                                    0,
 209                                                    GTK_PARAM_READWRITE));
 210
 211   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 212 }
 213
 214 static void
 215 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 216 {
 217   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 218                                                 GTK_TYPE_MENU_BAR,
 219                                                 GtkMenuBarPrivate);
 220 }
 221
 222 GtkWidget*
 223 gtk_menu_bar_new (void)
 224 {
 225   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 226 }
 227
 228 static void
 229 gtk_menu_bar_set_property (GObject      *object,
 230                            guint         prop_id,
 231                            const GValue *value,
 232                            GParamSpec   *pspec)
 233 {
 234   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 235
 236   switch (prop_id)
 237     {
 238     case PROP_PACK_DIRECTION:
 239       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 240       break;
 241     case PROP_CHILD_PACK_DIRECTION:
 242       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 243       break;
 244     default:
 245       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 246       break;
 247     }
 248 }
 249
 250 static void
 251 gtk_menu_bar_get_property (GObject    *object,
 252                            guint       prop_id,
 253                            GValue     *value,
 254                            GParamSpec *pspec)
 255 {
 256   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 257
 258   switch (prop_id)
 259     {
 260     case PROP_PACK_DIRECTION:
 261       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 262       break;
 263     case PROP_CHILD_PACK_DIRECTION:
 264       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 265       break;
 266     default:
 267       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 268       break;
 269     }
 270 }
 271
 272 static void
 273 gtk_menu_bar_size_request (GtkWidget      *widget,
 274                            GtkRequisition *requisition)
 275 {
 276   GtkMenuBar *menu_bar;
 277   GtkMenuBarPrivate *priv;
 278   GtkMenuShell *menu_shell;
 279   GtkWidget *child;
 280   GList *children;
 281   gint nchildren;
 282   GtkRequisition child_requisition;
 283   gint ipadding;
 284   guint border_width;
 285
 286   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 287   g_return_if_fail (requisition != NULL);
 288
 289   requisition->width = 0;
 290   requisition->height = 0;
 291
 292   if (gtk_widget_get_visible (widget))
 293     {
 294       menu_bar = GTK_MENU_BAR (widget);
 295       menu_shell = GTK_MENU_SHELL (widget);
 296       priv = menu_bar->priv;
 297
 298       nchildren = 0;
 299       children = menu_shell->children;
 300
 301       while (children)
 302         {
 303           child = children->data;
 304           children = children->next;
 305
 306           if (gtk_widget_get_visible (child))
 307             {
 308               gint toggle_size;
 309
 310               GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 311               gtk_widget_size_request (child, &child_requisition);
 312               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 313                                                  &toggle_size);
 314
 315               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 316                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 317                 child_requisition.width += toggle_size;
 318               else
 319                 child_requisition.height += toggle_size;
 320
 321               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 322                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 323                 {
 324                   requisition->width += child_requisition.width;
 325                   requisition->height = MAX (requisition->height, child_requisition.height);
 326                 }
 327               else
 328                 {
 329                   requisition->width = MAX (requisition->width, child_requisition.width);
 330                   requisition->height += child_requisition.height;
 331                 }
 332               nchildren += 1;
 333             }
 334         }
 335
 336       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 337
 338       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 339       requisition->width += (border_width +
 340                              ipadding +
 341                              BORDER_SPACING) * 2;
 342       requisition->height += (border_width +
 343                               ipadding +
 344                               BORDER_SPACING) * 2;
 345
 346       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 347         {
 348           requisition->width += widget->style->xthickness * 2;
 349           requisition->height += widget->style->ythickness * 2;
 350         }
 351     }
 352 }
 353
 354 static void
 355 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 356                             GtkAllocation *allocation)
 357 {
 358   GtkMenuBar *menu_bar;
 359   GtkMenuShell *menu_shell;
 360   GtkMenuBarPrivate *priv;
 361   GtkWidget *child;
 362   GList *children;
 363   GtkAllocation child_allocation;
 364   GtkRequisition child_requisition;
 365   guint offset;
 366   GtkTextDirection direction;
 367   gint ltr_x, ltr_y;
 368   gint ipadding;
 369   guint border_width;
 370
 371   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 372   g_return_if_fail (allocation != NULL);
 373
 374   menu_bar = GTK_MENU_BAR (widget);
 375   menu_shell = GTK_MENU_SHELL (widget);
 376   priv = menu_bar->priv;
 377
 378   direction = gtk_widget_get_direction (widget);
 379
 380   widget->allocation = *allocation;
 381   if (gtk_widget_get_realized (widget))
 382     gdk_window_move_resize (widget->window,
 383                             allocation->x, allocation->y,
 384                             allocation->width, allocation->height);
 385
 386   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 387
 388   if (menu_shell->children)
 389     {
 390       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 391       child_allocation.x = (border_width +
 392                             ipadding +
 393                             BORDER_SPACING);
 394       child_allocation.y = (border_width +
 395                             BORDER_SPACING);
 396
 397       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 398         {
 399           child_allocation.x += widget->style->xthickness;
 400           child_allocation.y += widget->style->ythickness;
 401         }
 402
 403       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 404           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 405         {
 406           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 407
 408           offset = child_allocation.x;  /* Window edge to menubar start */
 409           ltr_x = child_allocation.x;
 410
 411           children = menu_shell->children;
 412           while (children)
 413             {
 414               gint toggle_size;
 415
 416               child = children->data;
 417               children = children->next;
 418
 419               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 420                                                  &toggle_size);
 421               gtk_widget_get_child_requisition (child, &child_requisition);
 422
 423               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 424                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 425                 child_requisition.width += toggle_size;
 426               else
 427                 child_requisition.height += toggle_size;
 428
 429               /* Support for the right justified help menu */
 430               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 431                   && (GTK_MENU_ITEM(child)->right_justify))
 432                 {
 433                   ltr_x = allocation->width -
 434                     child_requisition.width - offset;
 435                 }
 436               if (gtk_widget_get_visible (child))
 437                 {
 438                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 439                     child_allocation.x = ltr_x;
 440                   else
 441                     child_allocation.x = allocation->width -
 442                       child_requisition.width - ltr_x;
 443
 444                   child_allocation.width = child_requisition.width;
 445
 446                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 447                                                       toggle_size);
 448                   gtk_widget_size_allocate (child, &child_allocation);
 449
 450                   ltr_x += child_allocation.width;
 451                 }
 452             }
 453         }
 454       else
 455         {
 456           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 457
 458           offset = child_allocation.y;  /* Window edge to menubar start */
 459           ltr_y = child_allocation.y;
 460
 461           children = menu_shell->children;
 462           while (children)
 463             {
 464               gint toggle_size;
 465
 466               child = children->data;
 467               children = children->next;
 468
 469               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 470                                                  &toggle_size);
 471               gtk_widget_get_child_requisition (child, &child_requisition);
 472
 473               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 474                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 475                 child_requisition.width += toggle_size;
 476               else
 477                 child_requisition.height += toggle_size;
 478
 479               /* Support for the right justified help menu */
 480               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 481                   && (GTK_MENU_ITEM(child)->right_justify))
 482                 {
 483                   ltr_y = allocation->height -
 484                     child_requisition.height - offset;
 485                 }
 486               if (gtk_widget_get_visible (child))
 487                 {
 488                   if ((direction == GTK_TEXT_DIR_LTR) ==
 489                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 490                     child_allocation.y = ltr_y;
 491                   else
 492                     child_allocation.y = allocation->height -
 493                       child_requisition.height - ltr_y;
 494                   child_allocation.height = child_requisition.height;
 495
 496                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 497                                                       toggle_size);
 498                   gtk_widget_size_allocate (child, &child_allocation);
 499
 500                   ltr_y += child_allocation.height;
 501                 }
 502             }
 503         }
 504     }
 505 }
 506
 507 static void
 508 gtk_menu_bar_paint (GtkWidget    *widget,
 509                     GdkRectangle *area)
 510 {
 511   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 512
 513   if (gtk_widget_is_drawable (widget))
 514     {
 515       guint border;
 516
 517       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 518
 519       gtk_paint_box (widget->style,
 520                      widget->window,
 521                      gtk_widget_get_state (widget),
 522                      get_shadow_type (GTK_MENU_BAR (widget)),
 523                      area, widget, "menubar",
 524                      border, border,
 525                      widget->allocation.width - border * 2,
 526                      widget->allocation.height - border * 2);
 527     }
 528 }
 529
 530 static gint
 531 gtk_menu_bar_expose (GtkWidget      *widget,
 532                      GdkEventExpose *event)
 533 {
 534   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 535   g_return_val_if_fail (event != NULL, FALSE);
 536
 537   if (gtk_widget_is_drawable (widget))
 538     {
 539       gtk_menu_bar_paint (widget, &event->area);
 540
 541       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 542     }
 543
 544   return FALSE;
 545 }
 546
 547 static GList *
 548 get_menu_bars (GtkWindow *window)
 549 {
 550   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 551 }
 552
 553 static GList *
 554 get_viewable_menu_bars (GtkWindow *window)
 555 {
 556   GList *menu_bars;
 557   GList *viewable_menu_bars = NULL;
 558
 559   for (menu_bars = get_menu_bars (window);
 560        menu_bars;
 561        menu_bars = menu_bars->next)
 562     {
 563       GtkWidget *widget = menu_bars->data;
 564       gboolean viewable = TRUE;
 565
 566       while (widget)
 567         {
 568           if (!gtk_widget_get_mapped (widget))
 569             viewable = FALSE;
 570
 571           widget = widget->parent;
 572         }
 573
 574       if (viewable)
 575         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 576     }
 577
 578   return g_list_reverse (viewable_menu_bars);
 579 }
 580
 581 static void
 582 set_menu_bars (GtkWindow *window,
 583                GList     *menubars)
 584 {
 585   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 586 }
 587
 588 static gboolean
 589 window_key_press_handler (GtkWidget   *widget,
 590                           GdkEventKey *event,
 591                           gpointer     data)
 592 {
 593   gchar *accel = NULL;
 594   gboolean retval = FALSE;
 595
 596   g_object_get (gtk_widget_get_settings (widget),
 597                 "gtk-menu-bar-accel", &accel,
 598                 NULL);
 599
 600   if (accel && *accel)
 601     {
 602       guint keyval = 0;
 603       GdkModifierType mods = 0;
 604
 605       gtk_accelerator_parse (accel, &keyval, &mods);
 606
 607       if (keyval == 0)
 608         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 609
 610       /* FIXME this is wrong, needs to be in the global accel resolution
 611        * thing, to properly consider i18n etc., but that probably requires
 612        * AccelGroup changes etc.
 613        */
 614       if (event->keyval == keyval &&
 615           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 616            (mods & gtk_accelerator_get_default_mod_mask ())))
 617         {
 618           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 619           GList *menubars;
 620
 621           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 622                                                 GTK_DIR_TAB_FORWARD, NULL);
 623           g_list_free (tmp_menubars);
 624
 625           if (menubars)
 626             {
 627               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 628
 629               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 630               _gtk_menu_shell_activate (menu_shell);
 631               gtk_menu_shell_select_first (menu_shell, FALSE);
 632
 633               g_list_free (menubars);
 634
 635               retval = TRUE;
 636             }
 637         }
 638     }
 639
 640   g_free (accel);
 641
 642   return retval;
 643 }
 644
 645 static void
 646 add_to_window (GtkWindow  *window,
 647                GtkMenuBar *menubar)
 648 {
 649   GList *menubars = get_menu_bars (window);
 650
 651   if (!menubars)
 652     {
 653       g_signal_connect (window,
 654                         "key-press-event",
 655                         G_CALLBACK (window_key_press_handler),
 656                         NULL);
 657     }
 658
 659   set_menu_bars (window, g_list_prepend (menubars, menubar));
 660 }
 661
 662 static void
 663 remove_from_window (GtkWindow  *window,
 664                     GtkMenuBar *menubar)
 665 {
 666   GList *menubars = get_menu_bars (window);
 667
 668   menubars = g_list_remove (menubars, menubar);
 669
 670   if (!menubars)
 671     {
 672       g_signal_handlers_disconnect_by_func (window,
 673                                             window_key_press_handler,
 674                                             NULL);
 675     }
 676
 677   set_menu_bars (window, menubars);
 678 }
 679
 680 static void
 681 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 682                                 GtkWidget *old_toplevel)
 683 {
 684   GtkWidget *toplevel;
 685   GtkMenuBar *menubar;
 686
 687   menubar = GTK_MENU_BAR (widget);
 688
 689   toplevel = gtk_widget_get_toplevel (widget);
 690
 691   if (old_toplevel)
 692     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 693
 694   if (gtk_widget_is_toplevel (toplevel))
 695     add_to_window (GTK_WINDOW (toplevel), menubar);
 696 }
 697
 698 /**
 699  * _gtk_menu_bar_cycle_focus:
 700  * @menubar: a #GtkMenuBar
 701  * @dir: direction in which to cycle the focus
 702  *
 703  * Move the focus between menubars in the toplevel.
 704  **/
 705 void
 706 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 707                            GtkDirectionType  dir)
 708 {
 709   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 710   GtkMenuItem *to_activate = NULL;
 711
 712   if (gtk_widget_is_toplevel (toplevel))
 713     {
 714       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 715       GList *menubars;
 716       GList *current;
 717
 718       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 719                                             dir, GTK_WIDGET (menubar));
 720       g_list_free (tmp_menubars);
 721
 722       if (menubars)
 723         {
 724           current = g_list_find (menubars, menubar);
 725
 726           if (current && current->next)
 727             {
 728               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 729               if (new_menushell->children)
 730                 to_activate = new_menushell->children->data;
 731             }
 732         }
 733
 734       g_list_free (menubars);
 735     }
 736
 737   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 738
 739   if (to_activate)
 740     g_signal_emit_by_name (to_activate, "activate_item");
 741 }
 742
 743 static GtkShadowType
 744 get_shadow_type (GtkMenuBar *menubar)
 745 {
 746   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 747
 748   gtk_widget_style_get (GTK_WIDGET (menubar),
 749                         "shadow-type", &shadow_type,
 750                         NULL);
 751
 752   return shadow_type;
 753 }
 754
 755 static gint
 756 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 757 {
 758   gint popup_delay;
 759
 760   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 761                 "gtk-menu-bar-popup-delay", &popup_delay,
 762                 NULL);
 763
 764   return popup_delay;
 765 }
 766
 767 static void
 768 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 769                            GtkMenuDirectionType  direction)
 770 {
 771   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 772   GtkTextDirection text_dir;
 773   GtkPackDirection pack_dir;
 774
 775   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 776   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 777
 778   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 779      {
 780       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 781         {
 782           switch (direction)
 783             {
 784             case GTK_MENU_DIR_PREV:
 785               direction = GTK_MENU_DIR_NEXT;
 786               break;
 787             case GTK_MENU_DIR_NEXT:
 788               direction = GTK_MENU_DIR_PREV;
 789               break;
 790             default: ;
 791             }
 792         }
 793     }
 794   else
 795     {
 796       switch (direction)
 797         {
 798         case GTK_MENU_DIR_PARENT:
 799           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 800             direction = GTK_MENU_DIR_PREV;
 801           else
 802             direction = GTK_MENU_DIR_NEXT;
 803           break;
 804         case GTK_MENU_DIR_CHILD:
 805           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 806             direction = GTK_MENU_DIR_NEXT;
 807           else
 808             direction = GTK_MENU_DIR_PREV;
 809           break;
 810         case GTK_MENU_DIR_PREV:
 811           if (text_dir == GTK_TEXT_DIR_RTL)
 812             direction = GTK_MENU_DIR_CHILD;
 813           else
 814             direction = GTK_MENU_DIR_PARENT;
 815           break;
 816         case GTK_MENU_DIR_NEXT:
 817           if (text_dir == GTK_TEXT_DIR_RTL)
 818             direction = GTK_MENU_DIR_PARENT;
 819           else
 820             direction = GTK_MENU_DIR_CHILD;
 821           break;
 822         default: ;
 823         }
 824     }
 825
 826   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 827 }
 828
 829 /**
 830  * gtk_menu_bar_get_pack_direction:
 831  * @menubar: a #GtkMenuBar
 832  *
 833  * Retrieves the current pack direction of the menubar.
 834  * See gtk_menu_bar_set_pack_direction().
 835  *
 836  * Return value: the pack direction
 837  *
 838  * Since: 2.8
 839  */
 840 GtkPackDirection
 841 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 842 {
 843   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 844                         GTK_PACK_DIRECTION_LTR);
 845
 846   return menubar->priv->pack_direction;
 847 }
 848
 849 /**
 850  * gtk_menu_bar_set_pack_direction:
 851  * @menubar: a #GtkMenuBar
 852  * @pack_dir: a new #GtkPackDirection
 853  *
 854  * Sets how items should be packed inside a menubar.
 855  *
 856  * Since: 2.8
 857  */
 858 void
 859 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 860                                  GtkPackDirection  pack_dir)
 861 {
 862   GtkMenuBarPrivate *priv;
 863   GList *l;
 864
 865   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 866
 867   priv = menubar->priv;
 868
 869   if (priv->pack_direction != pack_dir)
 870     {
 871       priv->pack_direction = pack_dir;
 872
 873       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 874
 875       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 876         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 877
 878       g_object_notify (G_OBJECT (menubar), "pack-direction");
 879     }
 880 }
 881
 882 /**
 883  * gtk_menu_bar_get_child_pack_direction:
 884  * @menubar: a #GtkMenuBar
 885  *
 886  * Retrieves the current child pack direction of the menubar.
 887  * See gtk_menu_bar_set_child_pack_direction().
 888  *
 889  * Return value: the child pack direction
 890  *
 891  * Since: 2.8
 892  */
 893 GtkPackDirection
 894 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 895 {
 896   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 897                         GTK_PACK_DIRECTION_LTR);
 898
 899   return menubar->priv->child_pack_direction;
 900 }
 901
 902 /**
 903  * gtk_menu_bar_set_child_pack_direction:
 904  * @menubar: a #GtkMenuBar
 905  * @child_pack_dir: a new #GtkPackDirection
 906  *
 907  * Sets how widgets should be packed inside the children of a menubar.
 908  *
 909  * Since: 2.8
 910  */
 911 void
 912 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 913                                        GtkPackDirection  child_pack_dir)
 914 {
 915   GtkMenuBarPrivate *priv;
 916   GList *l;
 917
 918   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 919
 920   priv = menubar->priv;
 921
 922   if (priv->child_pack_direction != child_pack_dir)
 923     {
 924       priv->child_pack_direction = child_pack_dir;
 925
 926       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 927
 928       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 929         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 930
 931       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 932     }
 933 }