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
  29 #include "gtkmenubar.h"
  30
  31 #include "gdk/gdkkeysyms.h"
  32 #include "gtkbindings.h"
  33 #include "gtkmain.h"
  34 #include "gtkmarshalers.h"
  35 #include "gtkmenuitem.h"
  36 #include "gtkmenuprivate.h"
  37 #include "gtksettings.h"
  38 #include "gtksizerequest.h"
  39 #include "gtkwindow.h"
  40
  41 #include "gtkintl.h"
  42 #include "gtkprivate.h"
  43
  44 #define BORDER_SPACING  0
  45 #define DEFAULT_IPADDING 1
  46
  47 /* Properties */
  48 enum {
  49   PROP_0,
  50   PROP_PACK_DIRECTION,
  51   PROP_CHILD_PACK_DIRECTION
  52 };
  53
  54 struct _GtkMenuBarPrivate
  55 {
  56   GtkPackDirection pack_direction;
  57   GtkPackDirection child_pack_direction;
  58 };
  59
  60
  61 static void gtk_menu_bar_set_property      (GObject             *object,
  62                                             guint                prop_id,
  63                                             const GValue        *value,
  64                                             GParamSpec          *pspec);
  65 static void gtk_menu_bar_get_property      (GObject             *object,
  66                                             guint                prop_id,
  67                                             GValue              *value,
  68                                             GParamSpec          *pspec);
  69 static void gtk_menu_bar_size_request      (GtkWidget       *widget,
  70                                             GtkRequisition  *requisition);
  71 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  72                                             GtkAllocation   *allocation);
  73 static void gtk_menu_bar_paint             (GtkWidget       *widget,
  74                                             GdkRectangle    *area);
  75 static gint gtk_menu_bar_expose            (GtkWidget       *widget,
  76                                             GdkEventExpose  *event);
  77 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  78                                             GtkWidget       *old_toplevel);
  79 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  80 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  81                                             GtkMenuDirectionType direction);
  82
  83 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  84
  85 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  86
  87 static void
  88 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  89 {
  90   GObjectClass *gobject_class;
  91   GtkWidgetClass *widget_class;
  92   GtkMenuShellClass *menu_shell_class;
  93
  94   GtkBindingSet *binding_set;
  95
  96   gobject_class = (GObjectClass*) class;
  97   widget_class = (GtkWidgetClass*) class;
  98   menu_shell_class = (GtkMenuShellClass*) class;
  99
 100   gobject_class->get_property = gtk_menu_bar_get_property;
 101   gobject_class->set_property = gtk_menu_bar_set_property;
 102
 103   widget_class->size_request = gtk_menu_bar_size_request;
 104   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 105   widget_class->expose_event = gtk_menu_bar_expose;
 106   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 107
 108   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 109   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 110   menu_shell_class->move_current = gtk_menu_bar_move_current;
 111
 112   binding_set = gtk_binding_set_by_class (class);
 113   gtk_binding_entry_add_signal (binding_set,
 114                                 GDK_KEY_Left, 0,
 115                                 "move-current", 1,
 116                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 117                                 GTK_MENU_DIR_PREV);
 118   gtk_binding_entry_add_signal (binding_set,
 119                                 GDK_KEY_KP_Left, 0,
 120                                 "move-current", 1,
 121                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 122                                 GTK_MENU_DIR_PREV);
 123   gtk_binding_entry_add_signal (binding_set,
 124                                 GDK_KEY_Right, 0,
 125                                 "move-current", 1,
 126                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 127                                 GTK_MENU_DIR_NEXT);
 128   gtk_binding_entry_add_signal (binding_set,
 129                                 GDK_KEY_KP_Right, 0,
 130                                 "move-current", 1,
 131                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 132                                 GTK_MENU_DIR_NEXT);
 133   gtk_binding_entry_add_signal (binding_set,
 134                                 GDK_KEY_Up, 0,
 135                                 "move-current", 1,
 136                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 137                                 GTK_MENU_DIR_PARENT);
 138   gtk_binding_entry_add_signal (binding_set,
 139                                 GDK_KEY_KP_Up, 0,
 140                                 "move-current", 1,
 141                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 142                                 GTK_MENU_DIR_PARENT);
 143   gtk_binding_entry_add_signal (binding_set,
 144                                 GDK_KEY_Down, 0,
 145                                 "move-current", 1,
 146                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 147                                 GTK_MENU_DIR_CHILD);
 148   gtk_binding_entry_add_signal (binding_set,
 149                                 GDK_KEY_KP_Down, 0,
 150                                 "move-current", 1,
 151                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 152                                 GTK_MENU_DIR_CHILD);
 153
 154   /**
 155    * GtkMenuBar:pack-direction:
 156    *
 157    * The pack direction of the menubar. It determines how
 158    * menuitems are arranged in the menubar.
 159    *
 160    * Since: 2.8
 161    */
 162   g_object_class_install_property (gobject_class,
 163                                    PROP_PACK_DIRECTION,
 164                                    g_param_spec_enum ("pack-direction",
 165                                                       P_("Pack direction"),
 166                                                       P_("The pack direction of the menubar"),
 167                                                       GTK_TYPE_PACK_DIRECTION,
 168                                                       GTK_PACK_DIRECTION_LTR,
 169                                                       GTK_PARAM_READWRITE));
 170
 171   /**
 172    * GtkMenuBar:child-pack-direction:
 173    *
 174    * The child pack direction of the menubar. It determines how
 175    * the widgets contained in child menuitems are arranged.
 176    *
 177    * Since: 2.8
 178    */
 179   g_object_class_install_property (gobject_class,
 180                                    PROP_CHILD_PACK_DIRECTION,
 181                                    g_param_spec_enum ("child-pack-direction",
 182                                                       P_("Child Pack direction"),
 183                                                       P_("The child pack direction of the menubar"),
 184                                                       GTK_TYPE_PACK_DIRECTION,
 185                                                       GTK_PACK_DIRECTION_LTR,
 186                                                       GTK_PARAM_READWRITE));
 187
 188
 189   gtk_widget_class_install_style_property (widget_class,
 190                                            g_param_spec_enum ("shadow-type",
 191                                                               P_("Shadow type"),
 192                                                               P_("Style of bevel around the menubar"),
 193                                                               GTK_TYPE_SHADOW_TYPE,
 194                                                               GTK_SHADOW_OUT,
 195                                                               GTK_PARAM_READABLE));
 196
 197   gtk_widget_class_install_style_property (widget_class,
 198                                            g_param_spec_int ("internal-padding",
 199                                                              P_("Internal padding"),
 200                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 201                                                              0,
 202                                                              G_MAXINT,
 203                                                              DEFAULT_IPADDING,
 204                                                              GTK_PARAM_READABLE));
 205
 206   gtk_settings_install_property (g_param_spec_int ("gtk-menu-bar-popup-delay",
 207                                                    P_("Delay before drop down menus appear"),
 208                                                    P_("Delay before the submenus of a menu bar appear"),
 209                                                    0,
 210                                                    G_MAXINT,
 211                                                    0,
 212                                                    GTK_PARAM_READWRITE));
 213
 214   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 215 }
 216
 217 static void
 218 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 219 {
 220   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 221                                                 GTK_TYPE_MENU_BAR,
 222                                                 GtkMenuBarPrivate);
 223 }
 224
 225 GtkWidget*
 226 gtk_menu_bar_new (void)
 227 {
 228   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 229 }
 230
 231 static void
 232 gtk_menu_bar_set_property (GObject      *object,
 233                            guint         prop_id,
 234                            const GValue *value,
 235                            GParamSpec   *pspec)
 236 {
 237   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 238
 239   switch (prop_id)
 240     {
 241     case PROP_PACK_DIRECTION:
 242       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 243       break;
 244     case PROP_CHILD_PACK_DIRECTION:
 245       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 246       break;
 247     default:
 248       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 249       break;
 250     }
 251 }
 252
 253 static void
 254 gtk_menu_bar_get_property (GObject    *object,
 255                            guint       prop_id,
 256                            GValue     *value,
 257                            GParamSpec *pspec)
 258 {
 259   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 260
 261   switch (prop_id)
 262     {
 263     case PROP_PACK_DIRECTION:
 264       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 265       break;
 266     case PROP_CHILD_PACK_DIRECTION:
 267       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 268       break;
 269     default:
 270       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 271       break;
 272     }
 273 }
 274
 275 static void
 276 gtk_menu_bar_size_request (GtkWidget      *widget,
 277                            GtkRequisition *requisition)
 278 {
 279   GtkMenuBar *menu_bar;
 280   GtkMenuBarPrivate *priv;
 281   GtkMenuShell *menu_shell;
 282   GtkWidget *child;
 283   GList *children;
 284   gint nchildren;
 285   GtkRequisition child_requisition;
 286   gint ipadding;
 287   guint border_width;
 288
 289   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 290   g_return_if_fail (requisition != NULL);
 291
 292   requisition->width = 0;
 293   requisition->height = 0;
 294
 295   if (gtk_widget_get_visible (widget))
 296     {
 297       menu_bar = GTK_MENU_BAR (widget);
 298       menu_shell = GTK_MENU_SHELL (widget);
 299       priv = menu_bar->priv;
 300
 301       nchildren = 0;
 302       children = menu_shell->children;
 303
 304       while (children)
 305         {
 306           child = children->data;
 307           children = children->next;
 308
 309           if (gtk_widget_get_visible (child))
 310             {
 311               gint toggle_size;
 312
 313               GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 314               gtk_widget_size_request (child, &child_requisition);
 315               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 316                                                  &toggle_size);
 317
 318               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 319                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 320                 child_requisition.width += toggle_size;
 321               else
 322                 child_requisition.height += toggle_size;
 323
 324               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 325                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 326                 {
 327                   requisition->width += child_requisition.width;
 328                   requisition->height = MAX (requisition->height, child_requisition.height);
 329                 }
 330               else
 331                 {
 332                   requisition->width = MAX (requisition->width, child_requisition.width);
 333                   requisition->height += child_requisition.height;
 334                 }
 335               nchildren += 1;
 336             }
 337         }
 338
 339       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 340
 341       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 342       requisition->width += (border_width +
 343                              ipadding +
 344                              BORDER_SPACING) * 2;
 345       requisition->height += (border_width +
 346                               ipadding +
 347                               BORDER_SPACING) * 2;
 348
 349       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 350         {
 351           GtkStyle *style;
 352
 353           style = gtk_widget_get_style (widget);
 354           requisition->width += style->xthickness * 2;
 355           requisition->height += style->ythickness * 2;
 356         }
 357     }
 358 }
 359
 360 static void
 361 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 362                             GtkAllocation *allocation)
 363 {
 364   GtkMenuBar *menu_bar;
 365   GtkMenuShell *menu_shell;
 366   GtkMenuBarPrivate *priv;
 367   GtkWidget *child;
 368   GList *children;
 369   GtkAllocation child_allocation;
 370   GtkRequisition child_requisition;
 371   guint offset;
 372   GtkTextDirection direction;
 373   gint ltr_x, ltr_y;
 374   gint ipadding;
 375   guint border_width;
 376
 377   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 378   g_return_if_fail (allocation != NULL);
 379
 380   menu_bar = GTK_MENU_BAR (widget);
 381   menu_shell = GTK_MENU_SHELL (widget);
 382   priv = menu_bar->priv;
 383
 384   direction = gtk_widget_get_direction (widget);
 385
 386   gtk_widget_set_allocation (widget, allocation);
 387
 388   if (gtk_widget_get_realized (widget))
 389     gdk_window_move_resize (gtk_widget_get_window (widget),
 390                             allocation->x, allocation->y,
 391                             allocation->width, allocation->height);
 392
 393   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 394
 395   if (menu_shell->children)
 396     {
 397       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 398       child_allocation.x = (border_width +
 399                             ipadding +
 400                             BORDER_SPACING);
 401       child_allocation.y = (border_width +
 402                             BORDER_SPACING);
 403
 404       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 405         {
 406           GtkStyle *style;
 407
 408           style = gtk_widget_get_style (widget);
 409           child_allocation.x += style->xthickness;
 410           child_allocation.y += style->ythickness;
 411         }
 412
 413       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 414           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 415         {
 416           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 417
 418           offset = child_allocation.x;  /* Window edge to menubar start */
 419           ltr_x = child_allocation.x;
 420
 421           children = menu_shell->children;
 422           while (children)
 423             {
 424               gint toggle_size;
 425
 426               child = children->data;
 427               children = children->next;
 428
 429               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 430                                                  &toggle_size);
 431               gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 432                                          &child_requisition, NULL);
 433
 434               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 435                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 436                 child_requisition.width += toggle_size;
 437               else
 438                 child_requisition.height += toggle_size;
 439
 440               /* Support for the right justified help menu */
 441               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 442                   && (GTK_MENU_ITEM(child)->right_justify))
 443                 {
 444                   ltr_x = allocation->width -
 445                     child_requisition.width - offset;
 446                 }
 447               if (gtk_widget_get_visible (child))
 448                 {
 449                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 450                     child_allocation.x = ltr_x;
 451                   else
 452                     child_allocation.x = allocation->width -
 453                       child_requisition.width - ltr_x;
 454
 455                   child_allocation.width = child_requisition.width;
 456
 457                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 458                                                       toggle_size);
 459                   gtk_widget_size_allocate (child, &child_allocation);
 460
 461                   ltr_x += child_allocation.width;
 462                 }
 463             }
 464         }
 465       else
 466         {
 467           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 468
 469           offset = child_allocation.y;  /* Window edge to menubar start */
 470           ltr_y = child_allocation.y;
 471
 472           children = menu_shell->children;
 473           while (children)
 474             {
 475               gint toggle_size;
 476
 477               child = children->data;
 478               children = children->next;
 479
 480               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 481                                                  &toggle_size);
 482               gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 483                                          &child_requisition, NULL);
 484
 485               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 486                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 487                 child_requisition.width += toggle_size;
 488               else
 489                 child_requisition.height += toggle_size;
 490
 491               /* Support for the right justified help menu */
 492               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 493                   && (GTK_MENU_ITEM(child)->right_justify))
 494                 {
 495                   ltr_y = allocation->height -
 496                     child_requisition.height - offset;
 497                 }
 498               if (gtk_widget_get_visible (child))
 499                 {
 500                   if ((direction == GTK_TEXT_DIR_LTR) ==
 501                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 502                     child_allocation.y = ltr_y;
 503                   else
 504                     child_allocation.y = allocation->height -
 505                       child_requisition.height - ltr_y;
 506                   child_allocation.height = child_requisition.height;
 507
 508                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 509                                                       toggle_size);
 510                   gtk_widget_size_allocate (child, &child_allocation);
 511
 512                   ltr_y += child_allocation.height;
 513                 }
 514             }
 515         }
 516     }
 517 }
 518
 519 static void
 520 gtk_menu_bar_paint (GtkWidget    *widget,
 521                     GdkRectangle *area)
 522 {
 523   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 524
 525   if (gtk_widget_is_drawable (widget))
 526     {
 527       GtkAllocation allocation;
 528       guint border;
 529
 530       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 531       gtk_widget_get_allocation (widget, &allocation);
 532
 533       gtk_paint_box (gtk_widget_get_style (widget),
 534                      gtk_widget_get_window (widget),
 535                      gtk_widget_get_state (widget),
 536                      get_shadow_type (GTK_MENU_BAR (widget)),
 537                      area, widget, "menubar",
 538                      border, border,
 539                      allocation.width - border * 2,
 540                      allocation.height - border * 2);
 541     }
 542 }
 543
 544 static gint
 545 gtk_menu_bar_expose (GtkWidget      *widget,
 546                      GdkEventExpose *event)
 547 {
 548   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 549   g_return_val_if_fail (event != NULL, FALSE);
 550
 551   if (gtk_widget_is_drawable (widget))
 552     {
 553       gtk_menu_bar_paint (widget, &event->area);
 554
 555       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 556     }
 557
 558   return FALSE;
 559 }
 560
 561 static GList *
 562 get_menu_bars (GtkWindow *window)
 563 {
 564   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 565 }
 566
 567 static GList *
 568 get_viewable_menu_bars (GtkWindow *window)
 569 {
 570   GList *menu_bars;
 571   GList *viewable_menu_bars = NULL;
 572
 573   for (menu_bars = get_menu_bars (window);
 574        menu_bars;
 575        menu_bars = menu_bars->next)
 576     {
 577       GtkWidget *widget = menu_bars->data;
 578       gboolean viewable = TRUE;
 579
 580       while (widget)
 581         {
 582           if (!gtk_widget_get_mapped (widget))
 583             viewable = FALSE;
 584
 585           widget = gtk_widget_get_parent (widget);
 586         }
 587
 588       if (viewable)
 589         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 590     }
 591
 592   return g_list_reverse (viewable_menu_bars);
 593 }
 594
 595 static void
 596 set_menu_bars (GtkWindow *window,
 597                GList     *menubars)
 598 {
 599   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 600 }
 601
 602 static gboolean
 603 window_key_press_handler (GtkWidget   *widget,
 604                           GdkEventKey *event,
 605                           gpointer     data)
 606 {
 607   gchar *accel = NULL;
 608   gboolean retval = FALSE;
 609
 610   g_object_get (gtk_widget_get_settings (widget),
 611                 "gtk-menu-bar-accel", &accel,
 612                 NULL);
 613
 614   if (accel && *accel)
 615     {
 616       guint keyval = 0;
 617       GdkModifierType mods = 0;
 618
 619       gtk_accelerator_parse (accel, &keyval, &mods);
 620
 621       if (keyval == 0)
 622         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 623
 624       /* FIXME this is wrong, needs to be in the global accel resolution
 625        * thing, to properly consider i18n etc., but that probably requires
 626        * AccelGroup changes etc.
 627        */
 628       if (event->keyval == keyval &&
 629           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 630            (mods & gtk_accelerator_get_default_mod_mask ())))
 631         {
 632           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 633           GList *menubars;
 634
 635           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 636                                                 GTK_DIR_TAB_FORWARD, NULL);
 637           g_list_free (tmp_menubars);
 638
 639           if (menubars)
 640             {
 641               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 642
 643               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 644               _gtk_menu_shell_activate (menu_shell);
 645               gtk_menu_shell_select_first (menu_shell, FALSE);
 646
 647               g_list_free (menubars);
 648
 649               retval = TRUE;
 650             }
 651         }
 652     }
 653
 654   g_free (accel);
 655
 656   return retval;
 657 }
 658
 659 static void
 660 add_to_window (GtkWindow  *window,
 661                GtkMenuBar *menubar)
 662 {
 663   GList *menubars = get_menu_bars (window);
 664
 665   if (!menubars)
 666     {
 667       g_signal_connect (window,
 668                         "key-press-event",
 669                         G_CALLBACK (window_key_press_handler),
 670                         NULL);
 671     }
 672
 673   set_menu_bars (window, g_list_prepend (menubars, menubar));
 674 }
 675
 676 static void
 677 remove_from_window (GtkWindow  *window,
 678                     GtkMenuBar *menubar)
 679 {
 680   GList *menubars = get_menu_bars (window);
 681
 682   menubars = g_list_remove (menubars, menubar);
 683
 684   if (!menubars)
 685     {
 686       g_signal_handlers_disconnect_by_func (window,
 687                                             window_key_press_handler,
 688                                             NULL);
 689     }
 690
 691   set_menu_bars (window, menubars);
 692 }
 693
 694 static void
 695 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 696                                 GtkWidget *old_toplevel)
 697 {
 698   GtkWidget *toplevel;
 699   GtkMenuBar *menubar;
 700
 701   menubar = GTK_MENU_BAR (widget);
 702
 703   toplevel = gtk_widget_get_toplevel (widget);
 704
 705   if (old_toplevel)
 706     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 707
 708   if (gtk_widget_is_toplevel (toplevel))
 709     add_to_window (GTK_WINDOW (toplevel), menubar);
 710 }
 711
 712 /**
 713  * _gtk_menu_bar_cycle_focus:
 714  * @menubar: a #GtkMenuBar
 715  * @dir: direction in which to cycle the focus
 716  *
 717  * Move the focus between menubars in the toplevel.
 718  **/
 719 void
 720 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 721                            GtkDirectionType  dir)
 722 {
 723   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 724   GtkMenuItem *to_activate = NULL;
 725
 726   if (gtk_widget_is_toplevel (toplevel))
 727     {
 728       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 729       GList *menubars;
 730       GList *current;
 731
 732       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 733                                             dir, GTK_WIDGET (menubar));
 734       g_list_free (tmp_menubars);
 735
 736       if (menubars)
 737         {
 738           current = g_list_find (menubars, menubar);
 739
 740           if (current && current->next)
 741             {
 742               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 743               if (new_menushell->children)
 744                 to_activate = new_menushell->children->data;
 745             }
 746         }
 747
 748       g_list_free (menubars);
 749     }
 750
 751   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 752
 753   if (to_activate)
 754     g_signal_emit_by_name (to_activate, "activate_item");
 755 }
 756
 757 static GtkShadowType
 758 get_shadow_type (GtkMenuBar *menubar)
 759 {
 760   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 761
 762   gtk_widget_style_get (GTK_WIDGET (menubar),
 763                         "shadow-type", &shadow_type,
 764                         NULL);
 765
 766   return shadow_type;
 767 }
 768
 769 static gint
 770 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 771 {
 772   gint popup_delay;
 773
 774   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 775                 "gtk-menu-bar-popup-delay", &popup_delay,
 776                 NULL);
 777
 778   return popup_delay;
 779 }
 780
 781 static void
 782 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 783                            GtkMenuDirectionType  direction)
 784 {
 785   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 786   GtkTextDirection text_dir;
 787   GtkPackDirection pack_dir;
 788
 789   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 790   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 791
 792   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 793      {
 794       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 795         {
 796           switch (direction)
 797             {
 798             case GTK_MENU_DIR_PREV:
 799               direction = GTK_MENU_DIR_NEXT;
 800               break;
 801             case GTK_MENU_DIR_NEXT:
 802               direction = GTK_MENU_DIR_PREV;
 803               break;
 804             default: ;
 805             }
 806         }
 807     }
 808   else
 809     {
 810       switch (direction)
 811         {
 812         case GTK_MENU_DIR_PARENT:
 813           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 814             direction = GTK_MENU_DIR_PREV;
 815           else
 816             direction = GTK_MENU_DIR_NEXT;
 817           break;
 818         case GTK_MENU_DIR_CHILD:
 819           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 820             direction = GTK_MENU_DIR_NEXT;
 821           else
 822             direction = GTK_MENU_DIR_PREV;
 823           break;
 824         case GTK_MENU_DIR_PREV:
 825           if (text_dir == GTK_TEXT_DIR_RTL)
 826             direction = GTK_MENU_DIR_CHILD;
 827           else
 828             direction = GTK_MENU_DIR_PARENT;
 829           break;
 830         case GTK_MENU_DIR_NEXT:
 831           if (text_dir == GTK_TEXT_DIR_RTL)
 832             direction = GTK_MENU_DIR_PARENT;
 833           else
 834             direction = GTK_MENU_DIR_CHILD;
 835           break;
 836         default: ;
 837         }
 838     }
 839
 840   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 841 }
 842
 843 /**
 844  * gtk_menu_bar_get_pack_direction:
 845  * @menubar: a #GtkMenuBar
 846  *
 847  * Retrieves the current pack direction of the menubar.
 848  * See gtk_menu_bar_set_pack_direction().
 849  *
 850  * Return value: the pack direction
 851  *
 852  * Since: 2.8
 853  */
 854 GtkPackDirection
 855 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 856 {
 857   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 858                         GTK_PACK_DIRECTION_LTR);
 859
 860   return menubar->priv->pack_direction;
 861 }
 862
 863 /**
 864  * gtk_menu_bar_set_pack_direction:
 865  * @menubar: a #GtkMenuBar
 866  * @pack_dir: a new #GtkPackDirection
 867  *
 868  * Sets how items should be packed inside a menubar.
 869  *
 870  * Since: 2.8
 871  */
 872 void
 873 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 874                                  GtkPackDirection  pack_dir)
 875 {
 876   GtkMenuBarPrivate *priv;
 877   GList *l;
 878
 879   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 880
 881   priv = menubar->priv;
 882
 883   if (priv->pack_direction != pack_dir)
 884     {
 885       priv->pack_direction = pack_dir;
 886
 887       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 888
 889       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 890         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 891
 892       g_object_notify (G_OBJECT (menubar), "pack-direction");
 893     }
 894 }
 895
 896 /**
 897  * gtk_menu_bar_get_child_pack_direction:
 898  * @menubar: a #GtkMenuBar
 899  *
 900  * Retrieves the current child pack direction of the menubar.
 901  * See gtk_menu_bar_set_child_pack_direction().
 902  *
 903  * Return value: the child pack direction
 904  *
 905  * Since: 2.8
 906  */
 907 GtkPackDirection
 908 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 909 {
 910   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 911                         GTK_PACK_DIRECTION_LTR);
 912
 913   return menubar->priv->child_pack_direction;
 914 }
 915
 916 /**
 917  * gtk_menu_bar_set_child_pack_direction:
 918  * @menubar: a #GtkMenuBar
 919  * @child_pack_dir: a new #GtkPackDirection
 920  *
 921  * Sets how widgets should be packed inside the children of a menubar.
 922  *
 923  * Since: 2.8
 924  */
 925 void
 926 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 927                                        GtkPackDirection  child_pack_dir)
 928 {
 929   GtkMenuBarPrivate *priv;
 930   GList *l;
 931
 932   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 933
 934   priv = menubar->priv;
 935
 936   if (priv->child_pack_direction != child_pack_dir)
 937     {
 938       priv->child_pack_direction = child_pack_dir;
 939
 940       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 941
 942       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 943         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 944
 945       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 946     }
 947 }