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           GtkStyle *style;
 349
 350           style = gtk_widget_get_style (widget);
 351           requisition->width += style->xthickness * 2;
 352           requisition->height += style->ythickness * 2;
 353         }
 354     }
 355 }
 356
 357 static void
 358 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 359                             GtkAllocation *allocation)
 360 {
 361   GtkMenuBar *menu_bar;
 362   GtkMenuShell *menu_shell;
 363   GtkMenuBarPrivate *priv;
 364   GtkWidget *child;
 365   GList *children;
 366   GtkAllocation child_allocation;
 367   GtkRequisition child_requisition;
 368   guint offset;
 369   GtkTextDirection direction;
 370   gint ltr_x, ltr_y;
 371   gint ipadding;
 372   guint border_width;
 373
 374   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 375   g_return_if_fail (allocation != NULL);
 376
 377   menu_bar = GTK_MENU_BAR (widget);
 378   menu_shell = GTK_MENU_SHELL (widget);
 379   priv = menu_bar->priv;
 380
 381   direction = gtk_widget_get_direction (widget);
 382
 383   gtk_widget_set_allocation (widget, allocation);
 384
 385   if (gtk_widget_get_realized (widget))
 386     gdk_window_move_resize (gtk_widget_get_window (widget),
 387                             allocation->x, allocation->y,
 388                             allocation->width, allocation->height);
 389
 390   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 391
 392   if (menu_shell->children)
 393     {
 394       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 395       child_allocation.x = (border_width +
 396                             ipadding +
 397                             BORDER_SPACING);
 398       child_allocation.y = (border_width +
 399                             BORDER_SPACING);
 400
 401       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 402         {
 403           GtkStyle *style;
 404
 405           style = gtk_widget_get_style (widget);
 406           child_allocation.x += style->xthickness;
 407           child_allocation.y += style->ythickness;
 408         }
 409
 410       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 411           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 412         {
 413           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 414
 415           offset = child_allocation.x;  /* Window edge to menubar start */
 416           ltr_x = child_allocation.x;
 417
 418           children = menu_shell->children;
 419           while (children)
 420             {
 421               gint toggle_size;
 422
 423               child = children->data;
 424               children = children->next;
 425
 426               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 427                                                  &toggle_size);
 428               gtk_widget_get_child_requisition (child, &child_requisition);
 429
 430               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 431                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 432                 child_requisition.width += toggle_size;
 433               else
 434                 child_requisition.height += toggle_size;
 435
 436               /* Support for the right justified help menu */
 437               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 438                   && (GTK_MENU_ITEM(child)->right_justify))
 439                 {
 440                   ltr_x = allocation->width -
 441                     child_requisition.width - offset;
 442                 }
 443               if (gtk_widget_get_visible (child))
 444                 {
 445                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 446                     child_allocation.x = ltr_x;
 447                   else
 448                     child_allocation.x = allocation->width -
 449                       child_requisition.width - ltr_x;
 450
 451                   child_allocation.width = child_requisition.width;
 452
 453                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 454                                                       toggle_size);
 455                   gtk_widget_size_allocate (child, &child_allocation);
 456
 457                   ltr_x += child_allocation.width;
 458                 }
 459             }
 460         }
 461       else
 462         {
 463           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 464
 465           offset = child_allocation.y;  /* Window edge to menubar start */
 466           ltr_y = child_allocation.y;
 467
 468           children = menu_shell->children;
 469           while (children)
 470             {
 471               gint toggle_size;
 472
 473               child = children->data;
 474               children = children->next;
 475
 476               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 477                                                  &toggle_size);
 478               gtk_widget_get_child_requisition (child, &child_requisition);
 479
 480               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 481                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 482                 child_requisition.width += toggle_size;
 483               else
 484                 child_requisition.height += toggle_size;
 485
 486               /* Support for the right justified help menu */
 487               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 488                   && (GTK_MENU_ITEM(child)->right_justify))
 489                 {
 490                   ltr_y = allocation->height -
 491                     child_requisition.height - offset;
 492                 }
 493               if (gtk_widget_get_visible (child))
 494                 {
 495                   if ((direction == GTK_TEXT_DIR_LTR) ==
 496                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 497                     child_allocation.y = ltr_y;
 498                   else
 499                     child_allocation.y = allocation->height -
 500                       child_requisition.height - ltr_y;
 501                   child_allocation.height = child_requisition.height;
 502
 503                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 504                                                       toggle_size);
 505                   gtk_widget_size_allocate (child, &child_allocation);
 506
 507                   ltr_y += child_allocation.height;
 508                 }
 509             }
 510         }
 511     }
 512 }
 513
 514 static void
 515 gtk_menu_bar_paint (GtkWidget    *widget,
 516                     GdkRectangle *area)
 517 {
 518   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 519
 520   if (gtk_widget_is_drawable (widget))
 521     {
 522       GtkAllocation allocation;
 523       guint border;
 524
 525       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 526       gtk_widget_get_allocation (widget, &allocation);
 527
 528       gtk_paint_box (gtk_widget_get_style (widget),
 529                      gtk_widget_get_window (widget),
 530                      gtk_widget_get_state (widget),
 531                      get_shadow_type (GTK_MENU_BAR (widget)),
 532                      area, widget, "menubar",
 533                      border, border,
 534                      allocation.width - border * 2,
 535                      allocation.height - border * 2);
 536     }
 537 }
 538
 539 static gint
 540 gtk_menu_bar_expose (GtkWidget      *widget,
 541                      GdkEventExpose *event)
 542 {
 543   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 544   g_return_val_if_fail (event != NULL, FALSE);
 545
 546   if (gtk_widget_is_drawable (widget))
 547     {
 548       gtk_menu_bar_paint (widget, &event->area);
 549
 550       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 551     }
 552
 553   return FALSE;
 554 }
 555
 556 static GList *
 557 get_menu_bars (GtkWindow *window)
 558 {
 559   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 560 }
 561
 562 static GList *
 563 get_viewable_menu_bars (GtkWindow *window)
 564 {
 565   GList *menu_bars;
 566   GList *viewable_menu_bars = NULL;
 567
 568   for (menu_bars = get_menu_bars (window);
 569        menu_bars;
 570        menu_bars = menu_bars->next)
 571     {
 572       GtkWidget *widget = menu_bars->data;
 573       gboolean viewable = TRUE;
 574
 575       while (widget)
 576         {
 577           if (!gtk_widget_get_mapped (widget))
 578             viewable = FALSE;
 579
 580           widget = gtk_widget_get_parent (widget);
 581         }
 582
 583       if (viewable)
 584         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 585     }
 586
 587   return g_list_reverse (viewable_menu_bars);
 588 }
 589
 590 static void
 591 set_menu_bars (GtkWindow *window,
 592                GList     *menubars)
 593 {
 594   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 595 }
 596
 597 static gboolean
 598 window_key_press_handler (GtkWidget   *widget,
 599                           GdkEventKey *event,
 600                           gpointer     data)
 601 {
 602   gchar *accel = NULL;
 603   gboolean retval = FALSE;
 604
 605   g_object_get (gtk_widget_get_settings (widget),
 606                 "gtk-menu-bar-accel", &accel,
 607                 NULL);
 608
 609   if (accel && *accel)
 610     {
 611       guint keyval = 0;
 612       GdkModifierType mods = 0;
 613
 614       gtk_accelerator_parse (accel, &keyval, &mods);
 615
 616       if (keyval == 0)
 617         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 618
 619       /* FIXME this is wrong, needs to be in the global accel resolution
 620        * thing, to properly consider i18n etc., but that probably requires
 621        * AccelGroup changes etc.
 622        */
 623       if (event->keyval == keyval &&
 624           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 625            (mods & gtk_accelerator_get_default_mod_mask ())))
 626         {
 627           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 628           GList *menubars;
 629
 630           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 631                                                 GTK_DIR_TAB_FORWARD, NULL);
 632           g_list_free (tmp_menubars);
 633
 634           if (menubars)
 635             {
 636               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 637
 638               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 639               _gtk_menu_shell_activate (menu_shell);
 640               gtk_menu_shell_select_first (menu_shell, FALSE);
 641
 642               g_list_free (menubars);
 643
 644               retval = TRUE;
 645             }
 646         }
 647     }
 648
 649   g_free (accel);
 650
 651   return retval;
 652 }
 653
 654 static void
 655 add_to_window (GtkWindow  *window,
 656                GtkMenuBar *menubar)
 657 {
 658   GList *menubars = get_menu_bars (window);
 659
 660   if (!menubars)
 661     {
 662       g_signal_connect (window,
 663                         "key-press-event",
 664                         G_CALLBACK (window_key_press_handler),
 665                         NULL);
 666     }
 667
 668   set_menu_bars (window, g_list_prepend (menubars, menubar));
 669 }
 670
 671 static void
 672 remove_from_window (GtkWindow  *window,
 673                     GtkMenuBar *menubar)
 674 {
 675   GList *menubars = get_menu_bars (window);
 676
 677   menubars = g_list_remove (menubars, menubar);
 678
 679   if (!menubars)
 680     {
 681       g_signal_handlers_disconnect_by_func (window,
 682                                             window_key_press_handler,
 683                                             NULL);
 684     }
 685
 686   set_menu_bars (window, menubars);
 687 }
 688
 689 static void
 690 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 691                                 GtkWidget *old_toplevel)
 692 {
 693   GtkWidget *toplevel;
 694   GtkMenuBar *menubar;
 695
 696   menubar = GTK_MENU_BAR (widget);
 697
 698   toplevel = gtk_widget_get_toplevel (widget);
 699
 700   if (old_toplevel)
 701     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 702
 703   if (gtk_widget_is_toplevel (toplevel))
 704     add_to_window (GTK_WINDOW (toplevel), menubar);
 705 }
 706
 707 /**
 708  * _gtk_menu_bar_cycle_focus:
 709  * @menubar: a #GtkMenuBar
 710  * @dir: direction in which to cycle the focus
 711  *
 712  * Move the focus between menubars in the toplevel.
 713  **/
 714 void
 715 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 716                            GtkDirectionType  dir)
 717 {
 718   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 719   GtkMenuItem *to_activate = NULL;
 720
 721   if (gtk_widget_is_toplevel (toplevel))
 722     {
 723       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 724       GList *menubars;
 725       GList *current;
 726
 727       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 728                                             dir, GTK_WIDGET (menubar));
 729       g_list_free (tmp_menubars);
 730
 731       if (menubars)
 732         {
 733           current = g_list_find (menubars, menubar);
 734
 735           if (current && current->next)
 736             {
 737               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 738               if (new_menushell->children)
 739                 to_activate = new_menushell->children->data;
 740             }
 741         }
 742
 743       g_list_free (menubars);
 744     }
 745
 746   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 747
 748   if (to_activate)
 749     g_signal_emit_by_name (to_activate, "activate_item");
 750 }
 751
 752 static GtkShadowType
 753 get_shadow_type (GtkMenuBar *menubar)
 754 {
 755   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 756
 757   gtk_widget_style_get (GTK_WIDGET (menubar),
 758                         "shadow-type", &shadow_type,
 759                         NULL);
 760
 761   return shadow_type;
 762 }
 763
 764 static gint
 765 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 766 {
 767   gint popup_delay;
 768
 769   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 770                 "gtk-menu-bar-popup-delay", &popup_delay,
 771                 NULL);
 772
 773   return popup_delay;
 774 }
 775
 776 static void
 777 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 778                            GtkMenuDirectionType  direction)
 779 {
 780   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 781   GtkTextDirection text_dir;
 782   GtkPackDirection pack_dir;
 783
 784   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 785   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 786
 787   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 788      {
 789       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 790         {
 791           switch (direction)
 792             {
 793             case GTK_MENU_DIR_PREV:
 794               direction = GTK_MENU_DIR_NEXT;
 795               break;
 796             case GTK_MENU_DIR_NEXT:
 797               direction = GTK_MENU_DIR_PREV;
 798               break;
 799             default: ;
 800             }
 801         }
 802     }
 803   else
 804     {
 805       switch (direction)
 806         {
 807         case GTK_MENU_DIR_PARENT:
 808           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 809             direction = GTK_MENU_DIR_PREV;
 810           else
 811             direction = GTK_MENU_DIR_NEXT;
 812           break;
 813         case GTK_MENU_DIR_CHILD:
 814           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 815             direction = GTK_MENU_DIR_NEXT;
 816           else
 817             direction = GTK_MENU_DIR_PREV;
 818           break;
 819         case GTK_MENU_DIR_PREV:
 820           if (text_dir == GTK_TEXT_DIR_RTL)
 821             direction = GTK_MENU_DIR_CHILD;
 822           else
 823             direction = GTK_MENU_DIR_PARENT;
 824           break;
 825         case GTK_MENU_DIR_NEXT:
 826           if (text_dir == GTK_TEXT_DIR_RTL)
 827             direction = GTK_MENU_DIR_PARENT;
 828           else
 829             direction = GTK_MENU_DIR_CHILD;
 830           break;
 831         default: ;
 832         }
 833     }
 834
 835   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 836 }
 837
 838 /**
 839  * gtk_menu_bar_get_pack_direction:
 840  * @menubar: a #GtkMenuBar
 841  *
 842  * Retrieves the current pack direction of the menubar.
 843  * See gtk_menu_bar_set_pack_direction().
 844  *
 845  * Return value: the pack direction
 846  *
 847  * Since: 2.8
 848  */
 849 GtkPackDirection
 850 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 851 {
 852   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 853                         GTK_PACK_DIRECTION_LTR);
 854
 855   return menubar->priv->pack_direction;
 856 }
 857
 858 /**
 859  * gtk_menu_bar_set_pack_direction:
 860  * @menubar: a #GtkMenuBar
 861  * @pack_dir: a new #GtkPackDirection
 862  *
 863  * Sets how items should be packed inside a menubar.
 864  *
 865  * Since: 2.8
 866  */
 867 void
 868 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 869                                  GtkPackDirection  pack_dir)
 870 {
 871   GtkMenuBarPrivate *priv;
 872   GList *l;
 873
 874   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 875
 876   priv = menubar->priv;
 877
 878   if (priv->pack_direction != pack_dir)
 879     {
 880       priv->pack_direction = pack_dir;
 881
 882       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 883
 884       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 885         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 886
 887       g_object_notify (G_OBJECT (menubar), "pack-direction");
 888     }
 889 }
 890
 891 /**
 892  * gtk_menu_bar_get_child_pack_direction:
 893  * @menubar: a #GtkMenuBar
 894  *
 895  * Retrieves the current child pack direction of the menubar.
 896  * See gtk_menu_bar_set_child_pack_direction().
 897  *
 898  * Return value: the child pack direction
 899  *
 900  * Since: 2.8
 901  */
 902 GtkPackDirection
 903 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 904 {
 905   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 906                         GTK_PACK_DIRECTION_LTR);
 907
 908   return menubar->priv->child_pack_direction;
 909 }
 910
 911 /**
 912  * gtk_menu_bar_set_child_pack_direction:
 913  * @menubar: a #GtkMenuBar
 914  * @child_pack_dir: a new #GtkPackDirection
 915  *
 916  * Sets how widgets should be packed inside the children of a menubar.
 917  *
 918  * Since: 2.8
 919  */
 920 void
 921 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 922                                        GtkPackDirection  child_pack_dir)
 923 {
 924   GtkMenuBarPrivate *priv;
 925   GList *l;
 926
 927   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 928
 929   priv = menubar->priv;
 930
 931   if (priv->child_pack_direction != child_pack_dir)
 932     {
 933       priv->child_pack_direction = child_pack_dir;
 934
 935       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 936
 937       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 938         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 939
 940       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 941     }
 942 }