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_get_preferred_width (GtkWidget     *widget,
  72                                               gint          *minimum,
  73                                               gint          *natural);
  74 static void gtk_menu_bar_get_preferred_height (GtkWidget    *widget,
  75                                                gint         *minimum,
  76                                                gint         *natural);
  77 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  78                                             GtkAllocation   *allocation);
  79 static gint gtk_menu_bar_draw              (GtkWidget       *widget,
  80                                             cairo_t         *cr);
  81 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  82                                             GtkWidget       *old_toplevel);
  83 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  84 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  85                                             GtkMenuDirectionType direction);
  86
  87 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  88
  89 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  90
  91 static void
  92 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  93 {
  94   GObjectClass *gobject_class;
  95   GtkWidgetClass *widget_class;
  96   GtkMenuShellClass *menu_shell_class;
  97
  98   GtkBindingSet *binding_set;
  99
 100   gobject_class = (GObjectClass*) class;
 101   widget_class = (GtkWidgetClass*) class;
 102   menu_shell_class = (GtkMenuShellClass*) class;
 103
 104   gobject_class->get_property = gtk_menu_bar_get_property;
 105   gobject_class->set_property = gtk_menu_bar_set_property;
 106
 107   widget_class->get_preferred_width = gtk_menu_bar_get_preferred_width;
 108   widget_class->get_preferred_height = gtk_menu_bar_get_preferred_height;
 109   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 110   widget_class->draw = gtk_menu_bar_draw;
 111   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 112
 113   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 114   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 115   menu_shell_class->move_current = gtk_menu_bar_move_current;
 116
 117   binding_set = gtk_binding_set_by_class (class);
 118   gtk_binding_entry_add_signal (binding_set,
 119                                 GDK_KEY_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_KP_Left, 0,
 125                                 "move-current", 1,
 126                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 127                                 GTK_MENU_DIR_PREV);
 128   gtk_binding_entry_add_signal (binding_set,
 129                                 GDK_KEY_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_KP_Right, 0,
 135                                 "move-current", 1,
 136                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 137                                 GTK_MENU_DIR_NEXT);
 138   gtk_binding_entry_add_signal (binding_set,
 139                                 GDK_KEY_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_KP_Up, 0,
 145                                 "move-current", 1,
 146                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 147                                 GTK_MENU_DIR_PARENT);
 148   gtk_binding_entry_add_signal (binding_set,
 149                                 GDK_KEY_Down, 0,
 150                                 "move-current", 1,
 151                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 152                                 GTK_MENU_DIR_CHILD);
 153   gtk_binding_entry_add_signal (binding_set,
 154                                 GDK_KEY_KP_Down, 0,
 155                                 "move-current", 1,
 156                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 157                                 GTK_MENU_DIR_CHILD);
 158
 159   /**
 160    * GtkMenuBar:pack-direction:
 161    *
 162    * The pack direction of the menubar. It determines how
 163    * menuitems are arranged in the menubar.
 164    *
 165    * Since: 2.8
 166    */
 167   g_object_class_install_property (gobject_class,
 168                                    PROP_PACK_DIRECTION,
 169                                    g_param_spec_enum ("pack-direction",
 170                                                       P_("Pack direction"),
 171                                                       P_("The pack direction of the menubar"),
 172                                                       GTK_TYPE_PACK_DIRECTION,
 173                                                       GTK_PACK_DIRECTION_LTR,
 174                                                       GTK_PARAM_READWRITE));
 175
 176   /**
 177    * GtkMenuBar:child-pack-direction:
 178    *
 179    * The child pack direction of the menubar. It determines how
 180    * the widgets contained in child menuitems are arranged.
 181    *
 182    * Since: 2.8
 183    */
 184   g_object_class_install_property (gobject_class,
 185                                    PROP_CHILD_PACK_DIRECTION,
 186                                    g_param_spec_enum ("child-pack-direction",
 187                                                       P_("Child Pack direction"),
 188                                                       P_("The child pack direction of the menubar"),
 189                                                       GTK_TYPE_PACK_DIRECTION,
 190                                                       GTK_PACK_DIRECTION_LTR,
 191                                                       GTK_PARAM_READWRITE));
 192
 193
 194   gtk_widget_class_install_style_property (widget_class,
 195                                            g_param_spec_enum ("shadow-type",
 196                                                               P_("Shadow type"),
 197                                                               P_("Style of bevel around the menubar"),
 198                                                               GTK_TYPE_SHADOW_TYPE,
 199                                                               GTK_SHADOW_OUT,
 200                                                               GTK_PARAM_READABLE));
 201
 202   gtk_widget_class_install_style_property (widget_class,
 203                                            g_param_spec_int ("internal-padding",
 204                                                              P_("Internal padding"),
 205                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 206                                                              0,
 207                                                              G_MAXINT,
 208                                                              DEFAULT_IPADDING,
 209                                                              GTK_PARAM_READABLE));
 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_get_preferred_size (child, &child_requisition, NULL);
 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_get_preferred_width (GtkWidget *widget,
 359                                   gint      *minimum,
 360                                   gint      *natural)
 361 {
 362   GtkRequisition requisition;
 363
 364   gtk_menu_bar_size_request (widget, &requisition);
 365
 366   *minimum = *natural = requisition.width;
 367 }
 368
 369 static void
 370 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 371                                    gint      *minimum,
 372                                    gint      *natural)
 373 {
 374   GtkRequisition requisition;
 375
 376   gtk_menu_bar_size_request (widget, &requisition);
 377
 378   *minimum = *natural = requisition.height;
 379 }
 380
 381 static void
 382 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 383                             GtkAllocation *allocation)
 384 {
 385   GtkMenuBar *menu_bar;
 386   GtkMenuShell *menu_shell;
 387   GtkMenuBarPrivate *priv;
 388   GtkWidget *child;
 389   GList *children;
 390   GtkAllocation child_allocation;
 391   GtkRequisition child_requisition;
 392   guint offset;
 393   GtkTextDirection direction;
 394   gint ltr_x, ltr_y;
 395   gint ipadding;
 396   guint border_width;
 397
 398   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 399   g_return_if_fail (allocation != NULL);
 400
 401   menu_bar = GTK_MENU_BAR (widget);
 402   menu_shell = GTK_MENU_SHELL (widget);
 403   priv = menu_bar->priv;
 404
 405   direction = gtk_widget_get_direction (widget);
 406
 407   gtk_widget_set_allocation (widget, allocation);
 408
 409   if (gtk_widget_get_realized (widget))
 410     gdk_window_move_resize (gtk_widget_get_window (widget),
 411                             allocation->x, allocation->y,
 412                             allocation->width, allocation->height);
 413
 414   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 415
 416   if (menu_shell->children)
 417     {
 418       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 419       child_allocation.x = (border_width +
 420                             ipadding +
 421                             BORDER_SPACING);
 422       child_allocation.y = (border_width +
 423                             BORDER_SPACING);
 424
 425       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 426         {
 427           GtkStyle *style;
 428
 429           style = gtk_widget_get_style (widget);
 430           child_allocation.x += style->xthickness;
 431           child_allocation.y += style->ythickness;
 432         }
 433
 434       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 435           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 436         {
 437           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 438
 439           offset = child_allocation.x;  /* Window edge to menubar start */
 440           ltr_x = child_allocation.x;
 441
 442           children = menu_shell->children;
 443           while (children)
 444             {
 445               gint toggle_size;
 446
 447               child = children->data;
 448               children = children->next;
 449
 450               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 451                                                  &toggle_size);
 452               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 453
 454               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 455                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 456                 child_requisition.width += toggle_size;
 457               else
 458                 child_requisition.height += toggle_size;
 459
 460               /* Support for the right justified help menu */
 461               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 462                   && (GTK_MENU_ITEM(child)->right_justify))
 463                 {
 464                   ltr_x = allocation->width -
 465                     child_requisition.width - offset;
 466                 }
 467               if (gtk_widget_get_visible (child))
 468                 {
 469                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 470                     child_allocation.x = ltr_x;
 471                   else
 472                     child_allocation.x = allocation->width -
 473                       child_requisition.width - ltr_x;
 474
 475                   child_allocation.width = child_requisition.width;
 476
 477                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 478                                                       toggle_size);
 479                   gtk_widget_size_allocate (child, &child_allocation);
 480
 481                   ltr_x += child_allocation.width;
 482                 }
 483             }
 484         }
 485       else
 486         {
 487           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 488
 489           offset = child_allocation.y;  /* Window edge to menubar start */
 490           ltr_y = child_allocation.y;
 491
 492           children = menu_shell->children;
 493           while (children)
 494             {
 495               gint toggle_size;
 496
 497               child = children->data;
 498               children = children->next;
 499
 500               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 501                                                  &toggle_size);
 502               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 503
 504               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 505                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 506                 child_requisition.width += toggle_size;
 507               else
 508                 child_requisition.height += toggle_size;
 509
 510               /* Support for the right justified help menu */
 511               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 512                   && (GTK_MENU_ITEM(child)->right_justify))
 513                 {
 514                   ltr_y = allocation->height -
 515                     child_requisition.height - offset;
 516                 }
 517               if (gtk_widget_get_visible (child))
 518                 {
 519                   if ((direction == GTK_TEXT_DIR_LTR) ==
 520                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 521                     child_allocation.y = ltr_y;
 522                   else
 523                     child_allocation.y = allocation->height -
 524                       child_requisition.height - ltr_y;
 525                   child_allocation.height = child_requisition.height;
 526
 527                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 528                                                       toggle_size);
 529                   gtk_widget_size_allocate (child, &child_allocation);
 530
 531                   ltr_y += child_allocation.height;
 532                 }
 533             }
 534         }
 535     }
 536 }
 537
 538 static gint
 539 gtk_menu_bar_draw (GtkWidget *widget,
 540                    cairo_t   *cr)
 541 {
 542   int border;
 543
 544   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 545
 546   gtk_paint_box (gtk_widget_get_style (widget),
 547                  cr,
 548                  gtk_widget_get_state (widget),
 549                  get_shadow_type (GTK_MENU_BAR (widget)),
 550                  widget, "menubar",
 551                  border, border,
 552                  gtk_widget_get_allocated_width (widget) - border * 2,
 553                  gtk_widget_get_allocated_height (widget) - border * 2);
 554
 555   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 556
 557   return FALSE;
 558 }
 559
 560 static GList *
 561 get_menu_bars (GtkWindow *window)
 562 {
 563   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 564 }
 565
 566 static GList *
 567 get_viewable_menu_bars (GtkWindow *window)
 568 {
 569   GList *menu_bars;
 570   GList *viewable_menu_bars = NULL;
 571
 572   for (menu_bars = get_menu_bars (window);
 573        menu_bars;
 574        menu_bars = menu_bars->next)
 575     {
 576       GtkWidget *widget = menu_bars->data;
 577       gboolean viewable = TRUE;
 578
 579       while (widget)
 580         {
 581           if (!gtk_widget_get_mapped (widget))
 582             viewable = FALSE;
 583
 584           widget = gtk_widget_get_parent (widget);
 585         }
 586
 587       if (viewable)
 588         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 589     }
 590
 591   return g_list_reverse (viewable_menu_bars);
 592 }
 593
 594 static void
 595 set_menu_bars (GtkWindow *window,
 596                GList     *menubars)
 597 {
 598   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 599 }
 600
 601 static gboolean
 602 window_key_press_handler (GtkWidget   *widget,
 603                           GdkEventKey *event,
 604                           gpointer     data)
 605 {
 606   gchar *accel = NULL;
 607   gboolean retval = FALSE;
 608
 609   g_object_get (gtk_widget_get_settings (widget),
 610                 "gtk-menu-bar-accel", &accel,
 611                 NULL);
 612
 613   if (accel && *accel)
 614     {
 615       guint keyval = 0;
 616       GdkModifierType mods = 0;
 617
 618       gtk_accelerator_parse (accel, &keyval, &mods);
 619
 620       if (keyval == 0)
 621         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 622
 623       /* FIXME this is wrong, needs to be in the global accel resolution
 624        * thing, to properly consider i18n etc., but that probably requires
 625        * AccelGroup changes etc.
 626        */
 627       if (event->keyval == keyval &&
 628           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 629            (mods & gtk_accelerator_get_default_mod_mask ())))
 630         {
 631           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 632           GList *menubars;
 633
 634           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 635                                                 GTK_DIR_TAB_FORWARD, NULL);
 636           g_list_free (tmp_menubars);
 637
 638           if (menubars)
 639             {
 640               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 641
 642               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 643               _gtk_menu_shell_activate (menu_shell);
 644               gtk_menu_shell_select_first (menu_shell, FALSE);
 645
 646               g_list_free (menubars);
 647
 648               retval = TRUE;
 649             }
 650         }
 651     }
 652
 653   g_free (accel);
 654
 655   return retval;
 656 }
 657
 658 static void
 659 add_to_window (GtkWindow  *window,
 660                GtkMenuBar *menubar)
 661 {
 662   GList *menubars = get_menu_bars (window);
 663
 664   if (!menubars)
 665     {
 666       g_signal_connect (window,
 667                         "key-press-event",
 668                         G_CALLBACK (window_key_press_handler),
 669                         NULL);
 670     }
 671
 672   set_menu_bars (window, g_list_prepend (menubars, menubar));
 673 }
 674
 675 static void
 676 remove_from_window (GtkWindow  *window,
 677                     GtkMenuBar *menubar)
 678 {
 679   GList *menubars = get_menu_bars (window);
 680
 681   menubars = g_list_remove (menubars, menubar);
 682
 683   if (!menubars)
 684     {
 685       g_signal_handlers_disconnect_by_func (window,
 686                                             window_key_press_handler,
 687                                             NULL);
 688     }
 689
 690   set_menu_bars (window, menubars);
 691 }
 692
 693 static void
 694 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 695                                 GtkWidget *old_toplevel)
 696 {
 697   GtkWidget *toplevel;
 698   GtkMenuBar *menubar;
 699
 700   menubar = GTK_MENU_BAR (widget);
 701
 702   toplevel = gtk_widget_get_toplevel (widget);
 703
 704   if (old_toplevel)
 705     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 706
 707   if (gtk_widget_is_toplevel (toplevel))
 708     add_to_window (GTK_WINDOW (toplevel), menubar);
 709 }
 710
 711 /**
 712  * _gtk_menu_bar_cycle_focus:
 713  * @menubar: a #GtkMenuBar
 714  * @dir: direction in which to cycle the focus
 715  *
 716  * Move the focus between menubars in the toplevel.
 717  **/
 718 void
 719 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 720                            GtkDirectionType  dir)
 721 {
 722   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 723   GtkMenuItem *to_activate = NULL;
 724
 725   if (gtk_widget_is_toplevel (toplevel))
 726     {
 727       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 728       GList *menubars;
 729       GList *current;
 730
 731       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 732                                             dir, GTK_WIDGET (menubar));
 733       g_list_free (tmp_menubars);
 734
 735       if (menubars)
 736         {
 737           current = g_list_find (menubars, menubar);
 738
 739           if (current && current->next)
 740             {
 741               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 742               if (new_menushell->children)
 743                 to_activate = new_menushell->children->data;
 744             }
 745         }
 746
 747       g_list_free (menubars);
 748     }
 749
 750   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 751
 752   if (to_activate)
 753     g_signal_emit_by_name (to_activate, "activate_item");
 754 }
 755
 756 static GtkShadowType
 757 get_shadow_type (GtkMenuBar *menubar)
 758 {
 759   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 760
 761   gtk_widget_style_get (GTK_WIDGET (menubar),
 762                         "shadow-type", &shadow_type,
 763                         NULL);
 764
 765   return shadow_type;
 766 }
 767
 768 static gint
 769 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 770 {
 771   gint popup_delay;
 772
 773   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 774                 "gtk-menu-bar-popup-delay", &popup_delay,
 775                 NULL);
 776
 777   return popup_delay;
 778 }
 779
 780 static void
 781 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 782                            GtkMenuDirectionType  direction)
 783 {
 784   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 785   GtkTextDirection text_dir;
 786   GtkPackDirection pack_dir;
 787
 788   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 789   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 790
 791   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 792      {
 793       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 794         {
 795           switch (direction)
 796             {
 797             case GTK_MENU_DIR_PREV:
 798               direction = GTK_MENU_DIR_NEXT;
 799               break;
 800             case GTK_MENU_DIR_NEXT:
 801               direction = GTK_MENU_DIR_PREV;
 802               break;
 803             default: ;
 804             }
 805         }
 806     }
 807   else
 808     {
 809       switch (direction)
 810         {
 811         case GTK_MENU_DIR_PARENT:
 812           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 813             direction = GTK_MENU_DIR_PREV;
 814           else
 815             direction = GTK_MENU_DIR_NEXT;
 816           break;
 817         case GTK_MENU_DIR_CHILD:
 818           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 819             direction = GTK_MENU_DIR_NEXT;
 820           else
 821             direction = GTK_MENU_DIR_PREV;
 822           break;
 823         case GTK_MENU_DIR_PREV:
 824           if (text_dir == GTK_TEXT_DIR_RTL)
 825             direction = GTK_MENU_DIR_CHILD;
 826           else
 827             direction = GTK_MENU_DIR_PARENT;
 828           break;
 829         case GTK_MENU_DIR_NEXT:
 830           if (text_dir == GTK_TEXT_DIR_RTL)
 831             direction = GTK_MENU_DIR_PARENT;
 832           else
 833             direction = GTK_MENU_DIR_CHILD;
 834           break;
 835         default: ;
 836         }
 837     }
 838
 839   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 840 }
 841
 842 /**
 843  * gtk_menu_bar_get_pack_direction:
 844  * @menubar: a #GtkMenuBar
 845  *
 846  * Retrieves the current pack direction of the menubar.
 847  * See gtk_menu_bar_set_pack_direction().
 848  *
 849  * Return value: the pack direction
 850  *
 851  * Since: 2.8
 852  */
 853 GtkPackDirection
 854 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 855 {
 856   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 857                         GTK_PACK_DIRECTION_LTR);
 858
 859   return menubar->priv->pack_direction;
 860 }
 861
 862 /**
 863  * gtk_menu_bar_set_pack_direction:
 864  * @menubar: a #GtkMenuBar
 865  * @pack_dir: a new #GtkPackDirection
 866  *
 867  * Sets how items should be packed inside a menubar.
 868  *
 869  * Since: 2.8
 870  */
 871 void
 872 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 873                                  GtkPackDirection  pack_dir)
 874 {
 875   GtkMenuBarPrivate *priv;
 876   GList *l;
 877
 878   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 879
 880   priv = menubar->priv;
 881
 882   if (priv->pack_direction != pack_dir)
 883     {
 884       priv->pack_direction = pack_dir;
 885
 886       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 887
 888       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 889         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 890
 891       g_object_notify (G_OBJECT (menubar), "pack-direction");
 892     }
 893 }
 894
 895 /**
 896  * gtk_menu_bar_get_child_pack_direction:
 897  * @menubar: a #GtkMenuBar
 898  *
 899  * Retrieves the current child pack direction of the menubar.
 900  * See gtk_menu_bar_set_child_pack_direction().
 901  *
 902  * Return value: the child pack direction
 903  *
 904  * Since: 2.8
 905  */
 906 GtkPackDirection
 907 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 908 {
 909   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 910                         GTK_PACK_DIRECTION_LTR);
 911
 912   return menubar->priv->child_pack_direction;
 913 }
 914
 915 /**
 916  * gtk_menu_bar_set_child_pack_direction:
 917  * @menubar: a #GtkMenuBar
 918  * @child_pack_dir: a new #GtkPackDirection
 919  *
 920  * Sets how widgets should be packed inside the children of a menubar.
 921  *
 922  * Since: 2.8
 923  */
 924 void
 925 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 926                                        GtkPackDirection  child_pack_dir)
 927 {
 928   GtkMenuBarPrivate *priv;
 929   GList *l;
 930
 931   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 932
 933   priv = menubar->priv;
 934
 935   if (priv->child_pack_direction != child_pack_dir)
 936     {
 937       priv->child_pack_direction = child_pack_dir;
 938
 939       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 940
 941       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 942         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 943
 944       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 945     }
 946 }