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 #include "config.h"
  28 #include "gdk/gdkkeysyms.h"
  29 #include "gtkbindings.h"
  30 #include "gtkmain.h"
  31 #include "gtkmarshalers.h"
  32 #include "gtkmenubar.h"
  33 #include "gtkmenuitem.h"
  34 #include "gtkmenuprivate.h"
  35 #include "gtksettings.h"
  36 #include "gtkintl.h"
  37 #include "gtkwindow.h"
  38 #include "gtkprivate.h"
  39
  40 #define BORDER_SPACING  0
  41 #define DEFAULT_IPADDING 1
  42
  43 /* Properties */
  44 enum {
  45   PROP_0,
  46   PROP_PACK_DIRECTION,
  47   PROP_CHILD_PACK_DIRECTION
  48 };
  49
  50 struct _GtkMenuBarPrivate
  51 {
  52   GtkPackDirection pack_direction;
  53   GtkPackDirection child_pack_direction;
  54 };
  55
  56
  57 static void gtk_menu_bar_set_property      (GObject             *object,
  58                                             guint                prop_id,
  59                                             const GValue        *value,
  60                                             GParamSpec          *pspec);
  61 static void gtk_menu_bar_get_property      (GObject             *object,
  62                                             guint                prop_id,
  63                                             GValue              *value,
  64                                             GParamSpec          *pspec);
  65 static void gtk_menu_bar_size_request      (GtkWidget       *widget,
  66                                             GtkRequisition  *requisition);
  67 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  68                                             GtkAllocation   *allocation);
  69 static void gtk_menu_bar_paint             (GtkWidget       *widget,
  70                                             GdkRectangle    *area);
  71 static gint gtk_menu_bar_expose            (GtkWidget       *widget,
  72                                             GdkEventExpose  *event);
  73 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  74                                             GtkWidget       *old_toplevel);
  75 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  76 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  77                                             GtkMenuDirectionType direction);
  78
  79 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  80
  81 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  82
  83 static void
  84 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  85 {
  86   GObjectClass *gobject_class;
  87   GtkWidgetClass *widget_class;
  88   GtkMenuShellClass *menu_shell_class;
  89
  90   GtkBindingSet *binding_set;
  91
  92   gobject_class = (GObjectClass*) class;
  93   widget_class = (GtkWidgetClass*) class;
  94   menu_shell_class = (GtkMenuShellClass*) class;
  95
  96   gobject_class->get_property = gtk_menu_bar_get_property;
  97   gobject_class->set_property = gtk_menu_bar_set_property;
  98
  99   widget_class->size_request = gtk_menu_bar_size_request;
 100   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 101   widget_class->expose_event = gtk_menu_bar_expose;
 102   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 103
 104   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 105   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 106   menu_shell_class->move_current = gtk_menu_bar_move_current;
 107
 108   binding_set = gtk_binding_set_by_class (class);
 109   gtk_binding_entry_add_signal (binding_set,
 110                                 GDK_Left, 0,
 111                                 "move-current", 1,
 112                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 113                                 GTK_MENU_DIR_PREV);
 114   gtk_binding_entry_add_signal (binding_set,
 115                                 GDK_KP_Left, 0,
 116                                 "move-current", 1,
 117                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 118                                 GTK_MENU_DIR_PREV);
 119   gtk_binding_entry_add_signal (binding_set,
 120                                 GDK_Right, 0,
 121                                 "move-current", 1,
 122                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 123                                 GTK_MENU_DIR_NEXT);
 124   gtk_binding_entry_add_signal (binding_set,
 125                                 GDK_KP_Right, 0,
 126                                 "move-current", 1,
 127                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 128                                 GTK_MENU_DIR_NEXT);
 129   gtk_binding_entry_add_signal (binding_set,
 130                                 GDK_Up, 0,
 131                                 "move-current", 1,
 132                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 133                                 GTK_MENU_DIR_PARENT);
 134   gtk_binding_entry_add_signal (binding_set,
 135                                 GDK_KP_Up, 0,
 136                                 "move-current", 1,
 137                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 138                                 GTK_MENU_DIR_PARENT);
 139   gtk_binding_entry_add_signal (binding_set,
 140                                 GDK_Down, 0,
 141                                 "move-current", 1,
 142                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 143                                 GTK_MENU_DIR_CHILD);
 144   gtk_binding_entry_add_signal (binding_set,
 145                                 GDK_KP_Down, 0,
 146                                 "move-current", 1,
 147                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 148                                 GTK_MENU_DIR_CHILD);
 149
 150   /**
 151    * GtkMenuBar:pack-direction:
 152    *
 153    * The pack direction of the menubar. It determines how
 154    * menuitems are arranged in the menubar.
 155    *
 156    * Since: 2.8
 157    */
 158   g_object_class_install_property (gobject_class,
 159                                    PROP_PACK_DIRECTION,
 160                                    g_param_spec_enum ("pack-direction",
 161                                                       P_("Pack direction"),
 162                                                       P_("The pack direction of the menubar"),
 163                                                       GTK_TYPE_PACK_DIRECTION,
 164                                                       GTK_PACK_DIRECTION_LTR,
 165                                                       GTK_PARAM_READWRITE));
 166
 167   /**
 168    * GtkMenuBar:child-pack-direction:
 169    *
 170    * The child pack direction of the menubar. It determines how
 171    * the widgets contained in child menuitems are arranged.
 172    *
 173    * Since: 2.8
 174    */
 175   g_object_class_install_property (gobject_class,
 176                                    PROP_CHILD_PACK_DIRECTION,
 177                                    g_param_spec_enum ("child-pack-direction",
 178                                                       P_("Child Pack direction"),
 179                                                       P_("The child pack direction of the menubar"),
 180                                                       GTK_TYPE_PACK_DIRECTION,
 181                                                       GTK_PACK_DIRECTION_LTR,
 182                                                       GTK_PARAM_READWRITE));
 183
 184
 185   gtk_widget_class_install_style_property (widget_class,
 186                                            g_param_spec_enum ("shadow-type",
 187                                                               P_("Shadow type"),
 188                                                               P_("Style of bevel around the menubar"),
 189                                                               GTK_TYPE_SHADOW_TYPE,
 190                                                               GTK_SHADOW_OUT,
 191                                                               GTK_PARAM_READABLE));
 192
 193   gtk_widget_class_install_style_property (widget_class,
 194                                            g_param_spec_int ("internal-padding",
 195                                                              P_("Internal padding"),
 196                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 197                                                              0,
 198                                                              G_MAXINT,
 199                                                              DEFAULT_IPADDING,
 200                                                              GTK_PARAM_READABLE));
 201
 202   gtk_settings_install_property (g_param_spec_int ("gtk-menu-bar-popup-delay",
 203                                                    P_("Delay before drop down menus appear"),
 204                                                    P_("Delay before the submenus of a menu bar appear"),
 205                                                    0,
 206                                                    G_MAXINT,
 207                                                    0,
 208                                                    GTK_PARAM_READWRITE));
 209
 210   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 211 }
 212
 213 static void
 214 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 215 {
 216   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 217                                                 GTK_TYPE_MENU_BAR,
 218                                                 GtkMenuBarPrivate);
 219 }
 220
 221 GtkWidget*
 222 gtk_menu_bar_new (void)
 223 {
 224   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 225 }
 226
 227 static void
 228 gtk_menu_bar_set_property (GObject      *object,
 229                            guint         prop_id,
 230                            const GValue *value,
 231                            GParamSpec   *pspec)
 232 {
 233   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 234
 235   switch (prop_id)
 236     {
 237     case PROP_PACK_DIRECTION:
 238       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 239       break;
 240     case PROP_CHILD_PACK_DIRECTION:
 241       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 242       break;
 243     default:
 244       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 245       break;
 246     }
 247 }
 248
 249 static void
 250 gtk_menu_bar_get_property (GObject    *object,
 251                            guint       prop_id,
 252                            GValue     *value,
 253                            GParamSpec *pspec)
 254 {
 255   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 256
 257   switch (prop_id)
 258     {
 259     case PROP_PACK_DIRECTION:
 260       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 261       break;
 262     case PROP_CHILD_PACK_DIRECTION:
 263       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 264       break;
 265     default:
 266       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 267       break;
 268     }
 269 }
 270
 271 static void
 272 gtk_menu_bar_size_request (GtkWidget      *widget,
 273                            GtkRequisition *requisition)
 274 {
 275   GtkMenuBar *menu_bar;
 276   GtkMenuBarPrivate *priv;
 277   GtkMenuShell *menu_shell;
 278   GtkWidget *child;
 279   GList *children;
 280   gint nchildren;
 281   GtkRequisition child_requisition;
 282   gint ipadding;
 283   guint border_width;
 284
 285   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 286   g_return_if_fail (requisition != NULL);
 287
 288   requisition->width = 0;
 289   requisition->height = 0;
 290
 291   if (gtk_widget_get_visible (widget))
 292     {
 293       menu_bar = GTK_MENU_BAR (widget);
 294       menu_shell = GTK_MENU_SHELL (widget);
 295       priv = menu_bar->priv;
 296
 297       nchildren = 0;
 298       children = menu_shell->children;
 299
 300       while (children)
 301         {
 302           child = children->data;
 303           children = children->next;
 304
 305           if (gtk_widget_get_visible (child))
 306             {
 307               gint toggle_size;
 308
 309               GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 310               gtk_widget_size_request (child, &child_requisition);
 311               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 312                                                  &toggle_size);
 313
 314               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 315                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 316                 child_requisition.width += toggle_size;
 317               else
 318                 child_requisition.height += toggle_size;
 319
 320               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 321                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 322                 {
 323                   requisition->width += child_requisition.width;
 324                   requisition->height = MAX (requisition->height, child_requisition.height);
 325                 }
 326               else
 327                 {
 328                   requisition->width = MAX (requisition->width, child_requisition.width);
 329                   requisition->height += child_requisition.height;
 330                 }
 331               nchildren += 1;
 332             }
 333         }
 334
 335       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 336
 337       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 338       requisition->width += (border_width +
 339                              ipadding +
 340                              BORDER_SPACING) * 2;
 341       requisition->height += (border_width +
 342                               ipadding +
 343                               BORDER_SPACING) * 2;
 344
 345       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 346         {
 347           GtkStyle *style;
 348
 349           style = gtk_widget_get_style (widget);
 350           requisition->width += style->xthickness * 2;
 351           requisition->height += style->ythickness * 2;
 352         }
 353     }
 354 }
 355
 356 static void
 357 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 358                             GtkAllocation *allocation)
 359 {
 360   GtkMenuBar *menu_bar;
 361   GtkMenuShell *menu_shell;
 362   GtkMenuBarPrivate *priv;
 363   GtkWidget *child;
 364   GList *children;
 365   GtkAllocation child_allocation;
 366   GtkRequisition child_requisition;
 367   guint offset;
 368   GtkTextDirection direction;
 369   gint ltr_x, ltr_y;
 370   gint ipadding;
 371   guint border_width;
 372
 373   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 374   g_return_if_fail (allocation != NULL);
 375
 376   menu_bar = GTK_MENU_BAR (widget);
 377   menu_shell = GTK_MENU_SHELL (widget);
 378   priv = menu_bar->priv;
 379
 380   direction = gtk_widget_get_direction (widget);
 381
 382   gtk_widget_set_allocation (widget, allocation);
 383
 384   if (gtk_widget_get_realized (widget))
 385     gdk_window_move_resize (gtk_widget_get_window (widget),
 386                             allocation->x, allocation->y,
 387                             allocation->width, allocation->height);
 388
 389   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 390
 391   if (menu_shell->children)
 392     {
 393       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 394       child_allocation.x = (border_width +
 395                             ipadding +
 396                             BORDER_SPACING);
 397       child_allocation.y = (border_width +
 398                             BORDER_SPACING);
 399
 400       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 401         {
 402           GtkStyle *style;
 403
 404           style = gtk_widget_get_style (widget);
 405           child_allocation.x += style->xthickness;
 406           child_allocation.y += style->ythickness;
 407         }
 408
 409       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 410           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 411         {
 412           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 413
 414           offset = child_allocation.x;  /* Window edge to menubar start */
 415           ltr_x = child_allocation.x;
 416
 417           children = menu_shell->children;
 418           while (children)
 419             {
 420               gint toggle_size;
 421
 422               child = children->data;
 423               children = children->next;
 424
 425               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 426                                                  &toggle_size);
 427               gtk_widget_get_child_requisition (child, &child_requisition);
 428
 429               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 430                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 431                 child_requisition.width += toggle_size;
 432               else
 433                 child_requisition.height += toggle_size;
 434
 435               /* Support for the right justified help menu */
 436               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 437                   && (GTK_MENU_ITEM(child)->right_justify))
 438                 {
 439                   ltr_x = allocation->width -
 440                     child_requisition.width - offset;
 441                 }
 442               if (gtk_widget_get_visible (child))
 443                 {
 444                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 445                     child_allocation.x = ltr_x;
 446                   else
 447                     child_allocation.x = allocation->width -
 448                       child_requisition.width - ltr_x;
 449
 450                   child_allocation.width = child_requisition.width;
 451
 452                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 453                                                       toggle_size);
 454                   gtk_widget_size_allocate (child, &child_allocation);
 455
 456                   ltr_x += child_allocation.width;
 457                 }
 458             }
 459         }
 460       else
 461         {
 462           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 463
 464           offset = child_allocation.y;  /* Window edge to menubar start */
 465           ltr_y = child_allocation.y;
 466
 467           children = menu_shell->children;
 468           while (children)
 469             {
 470               gint toggle_size;
 471
 472               child = children->data;
 473               children = children->next;
 474
 475               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 476                                                  &toggle_size);
 477               gtk_widget_get_child_requisition (child, &child_requisition);
 478
 479               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 480                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 481                 child_requisition.width += toggle_size;
 482               else
 483                 child_requisition.height += toggle_size;
 484
 485               /* Support for the right justified help menu */
 486               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 487                   && (GTK_MENU_ITEM(child)->right_justify))
 488                 {
 489                   ltr_y = allocation->height -
 490                     child_requisition.height - offset;
 491                 }
 492               if (gtk_widget_get_visible (child))
 493                 {
 494                   if ((direction == GTK_TEXT_DIR_LTR) ==
 495                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 496                     child_allocation.y = ltr_y;
 497                   else
 498                     child_allocation.y = allocation->height -
 499                       child_requisition.height - ltr_y;
 500                   child_allocation.height = child_requisition.height;
 501
 502                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 503                                                       toggle_size);
 504                   gtk_widget_size_allocate (child, &child_allocation);
 505
 506                   ltr_y += child_allocation.height;
 507                 }
 508             }
 509         }
 510     }
 511 }
 512
 513 static void
 514 gtk_menu_bar_paint (GtkWidget    *widget,
 515                     GdkRectangle *area)
 516 {
 517   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 518
 519   if (gtk_widget_is_drawable (widget))
 520     {
 521       GtkAllocation allocation;
 522       guint border;
 523
 524       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 525       gtk_widget_get_allocation (widget, &allocation);
 526
 527       gtk_paint_box (gtk_widget_get_style (widget),
 528                      gtk_widget_get_window (widget),
 529                      gtk_widget_get_state (widget),
 530                      get_shadow_type (GTK_MENU_BAR (widget)),
 531                      area, widget, "menubar",
 532                      border, border,
 533                      allocation.width - border * 2,
 534                      allocation.height - border * 2);
 535     }
 536 }
 537
 538 static gint
 539 gtk_menu_bar_expose (GtkWidget      *widget,
 540                      GdkEventExpose *event)
 541 {
 542   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 543   g_return_val_if_fail (event != NULL, FALSE);
 544
 545   if (gtk_widget_is_drawable (widget))
 546     {
 547       gtk_menu_bar_paint (widget, &event->area);
 548
 549       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 550     }
 551
 552   return FALSE;
 553 }
 554
 555 static GList *
 556 get_menu_bars (GtkWindow *window)
 557 {
 558   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 559 }
 560
 561 static GList *
 562 get_viewable_menu_bars (GtkWindow *window)
 563 {
 564   GList *menu_bars;
 565   GList *viewable_menu_bars = NULL;
 566
 567   for (menu_bars = get_menu_bars (window);
 568        menu_bars;
 569        menu_bars = menu_bars->next)
 570     {
 571       GtkWidget *widget = menu_bars->data;
 572       gboolean viewable = TRUE;
 573
 574       while (widget)
 575         {
 576           if (!gtk_widget_get_mapped (widget))
 577             viewable = FALSE;
 578
 579           widget = gtk_widget_get_parent (widget);
 580         }
 581
 582       if (viewable)
 583         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 584     }
 585
 586   return g_list_reverse (viewable_menu_bars);
 587 }
 588
 589 static void
 590 set_menu_bars (GtkWindow *window,
 591                GList     *menubars)
 592 {
 593   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 594 }
 595
 596 static gboolean
 597 window_key_press_handler (GtkWidget   *widget,
 598                           GdkEventKey *event,
 599                           gpointer     data)
 600 {
 601   gchar *accel = NULL;
 602   gboolean retval = FALSE;
 603
 604   g_object_get (gtk_widget_get_settings (widget),
 605                 "gtk-menu-bar-accel", &accel,
 606                 NULL);
 607
 608   if (accel && *accel)
 609     {
 610       guint keyval = 0;
 611       GdkModifierType mods = 0;
 612
 613       gtk_accelerator_parse (accel, &keyval, &mods);
 614
 615       if (keyval == 0)
 616         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 617
 618       /* FIXME this is wrong, needs to be in the global accel resolution
 619        * thing, to properly consider i18n etc., but that probably requires
 620        * AccelGroup changes etc.
 621        */
 622       if (event->keyval == keyval &&
 623           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 624            (mods & gtk_accelerator_get_default_mod_mask ())))
 625         {
 626           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 627           GList *menubars;
 628
 629           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 630                                                 GTK_DIR_TAB_FORWARD, NULL);
 631           g_list_free (tmp_menubars);
 632
 633           if (menubars)
 634             {
 635               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 636
 637               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 638               _gtk_menu_shell_activate (menu_shell);
 639               gtk_menu_shell_select_first (menu_shell, FALSE);
 640
 641               g_list_free (menubars);
 642
 643               retval = TRUE;
 644             }
 645         }
 646     }
 647
 648   g_free (accel);
 649
 650   return retval;
 651 }
 652
 653 static void
 654 add_to_window (GtkWindow  *window,
 655                GtkMenuBar *menubar)
 656 {
 657   GList *menubars = get_menu_bars (window);
 658
 659   if (!menubars)
 660     {
 661       g_signal_connect (window,
 662                         "key-press-event",
 663                         G_CALLBACK (window_key_press_handler),
 664                         NULL);
 665     }
 666
 667   set_menu_bars (window, g_list_prepend (menubars, menubar));
 668 }
 669
 670 static void
 671 remove_from_window (GtkWindow  *window,
 672                     GtkMenuBar *menubar)
 673 {
 674   GList *menubars = get_menu_bars (window);
 675
 676   menubars = g_list_remove (menubars, menubar);
 677
 678   if (!menubars)
 679     {
 680       g_signal_handlers_disconnect_by_func (window,
 681                                             window_key_press_handler,
 682                                             NULL);
 683     }
 684
 685   set_menu_bars (window, menubars);
 686 }
 687
 688 static void
 689 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 690                                 GtkWidget *old_toplevel)
 691 {
 692   GtkWidget *toplevel;
 693   GtkMenuBar *menubar;
 694
 695   menubar = GTK_MENU_BAR (widget);
 696
 697   toplevel = gtk_widget_get_toplevel (widget);
 698
 699   if (old_toplevel)
 700     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 701
 702   if (gtk_widget_is_toplevel (toplevel))
 703     add_to_window (GTK_WINDOW (toplevel), menubar);
 704 }
 705
 706 /**
 707  * _gtk_menu_bar_cycle_focus:
 708  * @menubar: a #GtkMenuBar
 709  * @dir: direction in which to cycle the focus
 710  *
 711  * Move the focus between menubars in the toplevel.
 712  **/
 713 void
 714 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 715                            GtkDirectionType  dir)
 716 {
 717   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 718   GtkMenuItem *to_activate = NULL;
 719
 720   if (gtk_widget_is_toplevel (toplevel))
 721     {
 722       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 723       GList *menubars;
 724       GList *current;
 725
 726       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 727                                             dir, GTK_WIDGET (menubar));
 728       g_list_free (tmp_menubars);
 729
 730       if (menubars)
 731         {
 732           current = g_list_find (menubars, menubar);
 733
 734           if (current && current->next)
 735             {
 736               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 737               if (new_menushell->children)
 738                 to_activate = new_menushell->children->data;
 739             }
 740         }
 741
 742       g_list_free (menubars);
 743     }
 744
 745   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 746
 747   if (to_activate)
 748     g_signal_emit_by_name (to_activate, "activate_item");
 749 }
 750
 751 static GtkShadowType
 752 get_shadow_type (GtkMenuBar *menubar)
 753 {
 754   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 755
 756   gtk_widget_style_get (GTK_WIDGET (menubar),
 757                         "shadow-type", &shadow_type,
 758                         NULL);
 759
 760   return shadow_type;
 761 }
 762
 763 static gint
 764 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 765 {
 766   gint popup_delay;
 767
 768   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 769                 "gtk-menu-bar-popup-delay", &popup_delay,
 770                 NULL);
 771
 772   return popup_delay;
 773 }
 774
 775 static void
 776 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 777                            GtkMenuDirectionType  direction)
 778 {
 779   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 780   GtkTextDirection text_dir;
 781   GtkPackDirection pack_dir;
 782
 783   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 784   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 785
 786   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 787      {
 788       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 789         {
 790           switch (direction)
 791             {
 792             case GTK_MENU_DIR_PREV:
 793               direction = GTK_MENU_DIR_NEXT;
 794               break;
 795             case GTK_MENU_DIR_NEXT:
 796               direction = GTK_MENU_DIR_PREV;
 797               break;
 798             default: ;
 799             }
 800         }
 801     }
 802   else
 803     {
 804       switch (direction)
 805         {
 806         case GTK_MENU_DIR_PARENT:
 807           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 808             direction = GTK_MENU_DIR_PREV;
 809           else
 810             direction = GTK_MENU_DIR_NEXT;
 811           break;
 812         case GTK_MENU_DIR_CHILD:
 813           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 814             direction = GTK_MENU_DIR_NEXT;
 815           else
 816             direction = GTK_MENU_DIR_PREV;
 817           break;
 818         case GTK_MENU_DIR_PREV:
 819           if (text_dir == GTK_TEXT_DIR_RTL)
 820             direction = GTK_MENU_DIR_CHILD;
 821           else
 822             direction = GTK_MENU_DIR_PARENT;
 823           break;
 824         case GTK_MENU_DIR_NEXT:
 825           if (text_dir == GTK_TEXT_DIR_RTL)
 826             direction = GTK_MENU_DIR_PARENT;
 827           else
 828             direction = GTK_MENU_DIR_CHILD;
 829           break;
 830         default: ;
 831         }
 832     }
 833
 834   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 835 }
 836
 837 /**
 838  * gtk_menu_bar_get_pack_direction:
 839  * @menubar: a #GtkMenuBar
 840  *
 841  * Retrieves the current pack direction of the menubar.
 842  * See gtk_menu_bar_set_pack_direction().
 843  *
 844  * Return value: the pack direction
 845  *
 846  * Since: 2.8
 847  */
 848 GtkPackDirection
 849 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 850 {
 851   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 852                         GTK_PACK_DIRECTION_LTR);
 853
 854   return menubar->priv->pack_direction;
 855 }
 856
 857 /**
 858  * gtk_menu_bar_set_pack_direction:
 859  * @menubar: a #GtkMenuBar
 860  * @pack_dir: a new #GtkPackDirection
 861  *
 862  * Sets how items should be packed inside a menubar.
 863  *
 864  * Since: 2.8
 865  */
 866 void
 867 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 868                                  GtkPackDirection  pack_dir)
 869 {
 870   GtkMenuBarPrivate *priv;
 871   GList *l;
 872
 873   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 874
 875   priv = menubar->priv;
 876
 877   if (priv->pack_direction != pack_dir)
 878     {
 879       priv->pack_direction = pack_dir;
 880
 881       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 882
 883       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 884         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 885
 886       g_object_notify (G_OBJECT (menubar), "pack-direction");
 887     }
 888 }
 889
 890 /**
 891  * gtk_menu_bar_get_child_pack_direction:
 892  * @menubar: a #GtkMenuBar
 893  *
 894  * Retrieves the current child pack direction of the menubar.
 895  * See gtk_menu_bar_set_child_pack_direction().
 896  *
 897  * Return value: the child pack direction
 898  *
 899  * Since: 2.8
 900  */
 901 GtkPackDirection
 902 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 903 {
 904   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 905                         GTK_PACK_DIRECTION_LTR);
 906
 907   return menubar->priv->child_pack_direction;
 908 }
 909
 910 /**
 911  * gtk_menu_bar_set_child_pack_direction:
 912  * @menubar: a #GtkMenuBar
 913  * @child_pack_dir: a new #GtkPackDirection
 914  *
 915  * Sets how widgets should be packed inside the children of a menubar.
 916  *
 917  * Since: 2.8
 918  */
 919 void
 920 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 921                                        GtkPackDirection  child_pack_dir)
 922 {
 923   GtkMenuBarPrivate *priv;
 924   GList *l;
 925
 926   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 927
 928   priv = menubar->priv;
 929
 930   if (priv->child_pack_direction != child_pack_dir)
 931     {
 932       priv->child_pack_direction = child_pack_dir;
 933
 934       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 935
 936       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 937         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 938
 939       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 940     }
 941 }