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 "gtkbindings.h"
  32 #include "gtkmain.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkmenuitemprivate.h"
  35 #include "gtkmenuprivate.h"
  36 #include "gtkmenushellprivate.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   GtkStyleContext *context;
 218
 219   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 220                                                 GTK_TYPE_MENU_BAR,
 221                                                 GtkMenuBarPrivate);
 222
 223   context = gtk_widget_get_style_context (GTK_WIDGET (menu_bar));
 224   gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUBAR);
 225 }
 226
 227 GtkWidget*
 228 gtk_menu_bar_new (void)
 229 {
 230   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 231 }
 232
 233 static void
 234 gtk_menu_bar_set_property (GObject      *object,
 235                            guint         prop_id,
 236                            const GValue *value,
 237                            GParamSpec   *pspec)
 238 {
 239   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 240
 241   switch (prop_id)
 242     {
 243     case PROP_PACK_DIRECTION:
 244       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 245       break;
 246     case PROP_CHILD_PACK_DIRECTION:
 247       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 248       break;
 249     default:
 250       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 251       break;
 252     }
 253 }
 254
 255 static void
 256 gtk_menu_bar_get_property (GObject    *object,
 257                            guint       prop_id,
 258                            GValue     *value,
 259                            GParamSpec *pspec)
 260 {
 261   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 262
 263   switch (prop_id)
 264     {
 265     case PROP_PACK_DIRECTION:
 266       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 267       break;
 268     case PROP_CHILD_PACK_DIRECTION:
 269       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 270       break;
 271     default:
 272       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 273       break;
 274     }
 275 }
 276
 277 static void
 278 gtk_menu_bar_size_request (GtkWidget      *widget,
 279                            GtkRequisition *requisition)
 280 {
 281   GtkMenuBar *menu_bar;
 282   GtkMenuBarPrivate *priv;
 283   GtkMenuShell *menu_shell;
 284   GtkWidget *child;
 285   GList *children;
 286   gint nchildren;
 287   GtkRequisition child_requisition;
 288   gint ipadding;
 289   guint border_width;
 290
 291   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 292   g_return_if_fail (requisition != NULL);
 293
 294   requisition->width = 0;
 295   requisition->height = 0;
 296
 297   if (gtk_widget_get_visible (widget))
 298     {
 299       menu_bar = GTK_MENU_BAR (widget);
 300       menu_shell = GTK_MENU_SHELL (widget);
 301       priv = menu_bar->priv;
 302
 303       nchildren = 0;
 304       children = menu_shell->priv->children;
 305
 306       while (children)
 307         {
 308           child = children->data;
 309           children = children->next;
 310
 311           if (gtk_widget_get_visible (child))
 312             {
 313               gint toggle_size;
 314
 315               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 316               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 317                                                  &toggle_size);
 318
 319               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 320                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 321                 child_requisition.width += toggle_size;
 322               else
 323                 child_requisition.height += toggle_size;
 324
 325               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 326                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 327                 {
 328                   requisition->width += child_requisition.width;
 329                   requisition->height = MAX (requisition->height, child_requisition.height);
 330                 }
 331               else
 332                 {
 333                   requisition->width = MAX (requisition->width, child_requisition.width);
 334                   requisition->height += child_requisition.height;
 335                 }
 336               nchildren += 1;
 337             }
 338         }
 339
 340       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 341
 342       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 343       requisition->width += (border_width +
 344                              ipadding +
 345                              BORDER_SPACING) * 2;
 346       requisition->height += (border_width +
 347                               ipadding +
 348                               BORDER_SPACING) * 2;
 349
 350       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 351         {
 352           GtkStyleContext *context;
 353           GtkBorder *border;
 354
 355           context = gtk_widget_get_style_context (widget);
 356
 357           gtk_style_context_get (context, 0,
 358                                  "border-width", &border,
 359                                  NULL);
 360
 361           requisition->width += border->left + border->right;
 362           requisition->height += border->top + border->bottom;
 363           gtk_border_free (border);
 364         }
 365     }
 366 }
 367
 368 static void
 369 gtk_menu_bar_get_preferred_width (GtkWidget *widget,
 370                                   gint      *minimum,
 371                                   gint      *natural)
 372 {
 373   GtkRequisition requisition;
 374
 375   gtk_menu_bar_size_request (widget, &requisition);
 376
 377   *minimum = *natural = requisition.width;
 378 }
 379
 380 static void
 381 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 382                                    gint      *minimum,
 383                                    gint      *natural)
 384 {
 385   GtkRequisition requisition;
 386
 387   gtk_menu_bar_size_request (widget, &requisition);
 388
 389   *minimum = *natural = requisition.height;
 390 }
 391
 392 static void
 393 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 394                             GtkAllocation *allocation)
 395 {
 396   GtkMenuBar *menu_bar;
 397   GtkMenuShell *menu_shell;
 398   GtkMenuBarPrivate *priv;
 399   GtkWidget *child;
 400   GList *children;
 401   GtkAllocation child_allocation;
 402   GtkRequisition child_requisition;
 403   guint offset;
 404   GtkTextDirection direction;
 405   gint ltr_x, ltr_y;
 406   gint ipadding;
 407   guint border_width;
 408
 409   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 410   g_return_if_fail (allocation != NULL);
 411
 412   menu_bar = GTK_MENU_BAR (widget);
 413   menu_shell = GTK_MENU_SHELL (widget);
 414   priv = menu_bar->priv;
 415
 416   direction = gtk_widget_get_direction (widget);
 417
 418   gtk_widget_set_allocation (widget, allocation);
 419
 420   if (gtk_widget_get_realized (widget))
 421     gdk_window_move_resize (gtk_widget_get_window (widget),
 422                             allocation->x, allocation->y,
 423                             allocation->width, allocation->height);
 424
 425   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 426
 427   if (menu_shell->priv->children)
 428     {
 429       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 430       child_allocation.x = (border_width +
 431                             ipadding +
 432                             BORDER_SPACING);
 433       child_allocation.y = (border_width +
 434                             BORDER_SPACING);
 435
 436       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 437         {
 438           GtkStyleContext *context;
 439           GtkBorder *border;
 440
 441           context = gtk_widget_get_style_context (widget);
 442           gtk_style_context_get (context, 0,
 443                                  "border-width", &border,
 444                                  NULL);
 445
 446           child_allocation.x += border->left;
 447           child_allocation.y += border->top;
 448
 449           gtk_border_free (border);
 450         }
 451
 452       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 453           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 454         {
 455           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 456
 457           offset = child_allocation.x;  /* Window edge to menubar start */
 458           ltr_x = child_allocation.x;
 459
 460           children = menu_shell->priv->children;
 461           while (children)
 462             {
 463               gint toggle_size;
 464
 465               child = children->data;
 466               children = children->next;
 467
 468               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 469                                                  &toggle_size);
 470               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 471
 472               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 473                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 474                 child_requisition.width += toggle_size;
 475               else
 476                 child_requisition.height += toggle_size;
 477
 478               /* Support for the right justified help menu */
 479               if (children == NULL &&
 480                   GTK_IS_MENU_ITEM (child) &&
 481                   GTK_MENU_ITEM (child)->priv->right_justify)
 482                 {
 483                   ltr_x = allocation->width -
 484                     child_requisition.width - offset;
 485                 }
 486               if (gtk_widget_get_visible (child))
 487                 {
 488                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 489                     child_allocation.x = ltr_x;
 490                   else
 491                     child_allocation.x = allocation->width -
 492                       child_requisition.width - ltr_x;
 493
 494                   child_allocation.width = child_requisition.width;
 495
 496                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 497                                                       toggle_size);
 498                   gtk_widget_size_allocate (child, &child_allocation);
 499
 500                   ltr_x += child_allocation.width;
 501                 }
 502             }
 503         }
 504       else
 505         {
 506           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 507
 508           offset = child_allocation.y;  /* Window edge to menubar start */
 509           ltr_y = child_allocation.y;
 510
 511           children = menu_shell->priv->children;
 512           while (children)
 513             {
 514               gint toggle_size;
 515
 516               child = children->data;
 517               children = children->next;
 518
 519               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 520                                                  &toggle_size);
 521               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 522
 523               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 524                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 525                 child_requisition.width += toggle_size;
 526               else
 527                 child_requisition.height += toggle_size;
 528
 529               /* Support for the right justified help menu */
 530               if (children == NULL &&
 531                   GTK_IS_MENU_ITEM (child) &&
 532                   GTK_MENU_ITEM (child)->priv->right_justify)
 533                 {
 534                   ltr_y = allocation->height -
 535                     child_requisition.height - offset;
 536                 }
 537               if (gtk_widget_get_visible (child))
 538                 {
 539                   if ((direction == GTK_TEXT_DIR_LTR) ==
 540                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 541                     child_allocation.y = ltr_y;
 542                   else
 543                     child_allocation.y = allocation->height -
 544                       child_requisition.height - ltr_y;
 545                   child_allocation.height = child_requisition.height;
 546
 547                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 548                                                       toggle_size);
 549                   gtk_widget_size_allocate (child, &child_allocation);
 550
 551                   ltr_y += child_allocation.height;
 552                 }
 553             }
 554         }
 555     }
 556 }
 557
 558 static gint
 559 gtk_menu_bar_draw (GtkWidget *widget,
 560                    cairo_t   *cr)
 561 {
 562   GtkStyleContext *context;
 563   GtkStateFlags state;
 564   int border;
 565
 566   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 567   context = gtk_widget_get_style_context (widget);
 568
 569   state = gtk_widget_get_state_flags (widget);
 570   gtk_style_context_set_state (context, state);
 571
 572   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 573     gtk_render_background (context, cr,
 574                            border, border,
 575                            gtk_widget_get_allocated_width (widget) - border * 2,
 576                            gtk_widget_get_allocated_height (widget) - border * 2);
 577
 578   gtk_render_frame (context, cr,
 579                     border, border,
 580                     gtk_widget_get_allocated_width (widget) - border * 2,
 581                     gtk_widget_get_allocated_height (widget) - border * 2);
 582
 583   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 584
 585   return FALSE;
 586 }
 587
 588 static GList *
 589 get_menu_bars (GtkWindow *window)
 590 {
 591   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 592 }
 593
 594 static GList *
 595 get_viewable_menu_bars (GtkWindow *window)
 596 {
 597   GList *menu_bars;
 598   GList *viewable_menu_bars = NULL;
 599
 600   for (menu_bars = get_menu_bars (window);
 601        menu_bars;
 602        menu_bars = menu_bars->next)
 603     {
 604       GtkWidget *widget = menu_bars->data;
 605       gboolean viewable = TRUE;
 606
 607       while (widget)
 608         {
 609           if (!gtk_widget_get_mapped (widget))
 610             viewable = FALSE;
 611
 612           widget = gtk_widget_get_parent (widget);
 613         }
 614
 615       if (viewable)
 616         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 617     }
 618
 619   return g_list_reverse (viewable_menu_bars);
 620 }
 621
 622 static void
 623 set_menu_bars (GtkWindow *window,
 624                GList     *menubars)
 625 {
 626   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 627 }
 628
 629 static gboolean
 630 window_key_press_handler (GtkWidget   *widget,
 631                           GdkEventKey *event,
 632                           gpointer     data)
 633 {
 634   gchar *accel = NULL;
 635   gboolean retval = FALSE;
 636
 637   g_object_get (gtk_widget_get_settings (widget),
 638                 "gtk-menu-bar-accel", &accel,
 639                 NULL);
 640
 641   if (accel && *accel)
 642     {
 643       guint keyval = 0;
 644       GdkModifierType mods = 0;
 645
 646       gtk_accelerator_parse (accel, &keyval, &mods);
 647
 648       if (keyval == 0)
 649         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 650
 651       /* FIXME this is wrong, needs to be in the global accel resolution
 652        * thing, to properly consider i18n etc., but that probably requires
 653        * AccelGroup changes etc.
 654        */
 655       if (event->keyval == keyval &&
 656           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 657            (mods & gtk_accelerator_get_default_mod_mask ())))
 658         {
 659           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 660           GList *menubars;
 661
 662           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 663                                                 GTK_DIR_TAB_FORWARD, NULL);
 664           g_list_free (tmp_menubars);
 665
 666           if (menubars)
 667             {
 668               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 669
 670               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 671               _gtk_menu_shell_activate (menu_shell);
 672               gtk_menu_shell_select_first (menu_shell, FALSE);
 673
 674               g_list_free (menubars);
 675
 676               retval = TRUE;
 677             }
 678         }
 679     }
 680
 681   g_free (accel);
 682
 683   return retval;
 684 }
 685
 686 static void
 687 add_to_window (GtkWindow  *window,
 688                GtkMenuBar *menubar)
 689 {
 690   GList *menubars = get_menu_bars (window);
 691
 692   if (!menubars)
 693     {
 694       g_signal_connect (window,
 695                         "key-press-event",
 696                         G_CALLBACK (window_key_press_handler),
 697                         NULL);
 698     }
 699
 700   set_menu_bars (window, g_list_prepend (menubars, menubar));
 701 }
 702
 703 static void
 704 remove_from_window (GtkWindow  *window,
 705                     GtkMenuBar *menubar)
 706 {
 707   GList *menubars = get_menu_bars (window);
 708
 709   menubars = g_list_remove (menubars, menubar);
 710
 711   if (!menubars)
 712     {
 713       g_signal_handlers_disconnect_by_func (window,
 714                                             window_key_press_handler,
 715                                             NULL);
 716     }
 717
 718   set_menu_bars (window, menubars);
 719 }
 720
 721 static void
 722 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 723                                 GtkWidget *old_toplevel)
 724 {
 725   GtkWidget *toplevel;
 726   GtkMenuBar *menubar;
 727
 728   menubar = GTK_MENU_BAR (widget);
 729
 730   toplevel = gtk_widget_get_toplevel (widget);
 731
 732   if (old_toplevel)
 733     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 734
 735   if (gtk_widget_is_toplevel (toplevel))
 736     add_to_window (GTK_WINDOW (toplevel), menubar);
 737 }
 738
 739 /**
 740  * _gtk_menu_bar_cycle_focus:
 741  * @menubar: a #GtkMenuBar
 742  * @dir: direction in which to cycle the focus
 743  *
 744  * Move the focus between menubars in the toplevel.
 745  **/
 746 void
 747 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 748                            GtkDirectionType  dir)
 749 {
 750   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 751   GtkMenuItem *to_activate = NULL;
 752
 753   if (gtk_widget_is_toplevel (toplevel))
 754     {
 755       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 756       GList *menubars;
 757       GList *current;
 758
 759       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 760                                             dir, GTK_WIDGET (menubar));
 761       g_list_free (tmp_menubars);
 762
 763       if (menubars)
 764         {
 765           current = g_list_find (menubars, menubar);
 766
 767           if (current && current->next)
 768             {
 769               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 770               if (new_menushell->priv->children)
 771                 to_activate = new_menushell->priv->children->data;
 772             }
 773         }
 774
 775       g_list_free (menubars);
 776     }
 777
 778   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 779
 780   if (to_activate)
 781     g_signal_emit_by_name (to_activate, "activate_item");
 782 }
 783
 784 static GtkShadowType
 785 get_shadow_type (GtkMenuBar *menubar)
 786 {
 787   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 788
 789   gtk_widget_style_get (GTK_WIDGET (menubar),
 790                         "shadow-type", &shadow_type,
 791                         NULL);
 792
 793   return shadow_type;
 794 }
 795
 796 static gint
 797 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 798 {
 799   gint popup_delay;
 800
 801   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 802                 "gtk-menu-bar-popup-delay", &popup_delay,
 803                 NULL);
 804
 805   return popup_delay;
 806 }
 807
 808 static void
 809 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 810                            GtkMenuDirectionType  direction)
 811 {
 812   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 813   GtkTextDirection text_dir;
 814   GtkPackDirection pack_dir;
 815
 816   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 817   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 818
 819   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 820      {
 821       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 822         {
 823           switch (direction)
 824             {
 825             case GTK_MENU_DIR_PREV:
 826               direction = GTK_MENU_DIR_NEXT;
 827               break;
 828             case GTK_MENU_DIR_NEXT:
 829               direction = GTK_MENU_DIR_PREV;
 830               break;
 831             default: ;
 832             }
 833         }
 834     }
 835   else
 836     {
 837       switch (direction)
 838         {
 839         case GTK_MENU_DIR_PARENT:
 840           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 841             direction = GTK_MENU_DIR_PREV;
 842           else
 843             direction = GTK_MENU_DIR_NEXT;
 844           break;
 845         case GTK_MENU_DIR_CHILD:
 846           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 847             direction = GTK_MENU_DIR_NEXT;
 848           else
 849             direction = GTK_MENU_DIR_PREV;
 850           break;
 851         case GTK_MENU_DIR_PREV:
 852           if (text_dir == GTK_TEXT_DIR_RTL)
 853             direction = GTK_MENU_DIR_CHILD;
 854           else
 855             direction = GTK_MENU_DIR_PARENT;
 856           break;
 857         case GTK_MENU_DIR_NEXT:
 858           if (text_dir == GTK_TEXT_DIR_RTL)
 859             direction = GTK_MENU_DIR_PARENT;
 860           else
 861             direction = GTK_MENU_DIR_CHILD;
 862           break;
 863         default: ;
 864         }
 865     }
 866
 867   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 868 }
 869
 870 /**
 871  * gtk_menu_bar_get_pack_direction:
 872  * @menubar: a #GtkMenuBar
 873  *
 874  * Retrieves the current pack direction of the menubar.
 875  * See gtk_menu_bar_set_pack_direction().
 876  *
 877  * Return value: the pack direction
 878  *
 879  * Since: 2.8
 880  */
 881 GtkPackDirection
 882 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 883 {
 884   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 885                         GTK_PACK_DIRECTION_LTR);
 886
 887   return menubar->priv->pack_direction;
 888 }
 889
 890 /**
 891  * gtk_menu_bar_set_pack_direction:
 892  * @menubar: a #GtkMenuBar
 893  * @pack_dir: a new #GtkPackDirection
 894  *
 895  * Sets how items should be packed inside a menubar.
 896  *
 897  * Since: 2.8
 898  */
 899 void
 900 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 901                                  GtkPackDirection  pack_dir)
 902 {
 903   GtkMenuBarPrivate *priv;
 904   GList *l;
 905
 906   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 907
 908   priv = menubar->priv;
 909
 910   if (priv->pack_direction != pack_dir)
 911     {
 912       priv->pack_direction = pack_dir;
 913
 914       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 915
 916       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 917         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 918
 919       g_object_notify (G_OBJECT (menubar), "pack-direction");
 920     }
 921 }
 922
 923 /**
 924  * gtk_menu_bar_get_child_pack_direction:
 925  * @menubar: a #GtkMenuBar
 926  *
 927  * Retrieves the current child pack direction of the menubar.
 928  * See gtk_menu_bar_set_child_pack_direction().
 929  *
 930  * Return value: the child pack direction
 931  *
 932  * Since: 2.8
 933  */
 934 GtkPackDirection
 935 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 936 {
 937   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 938                         GTK_PACK_DIRECTION_LTR);
 939
 940   return menubar->priv->child_pack_direction;
 941 }
 942
 943 /**
 944  * gtk_menu_bar_set_child_pack_direction:
 945  * @menubar: a #GtkMenuBar
 946  * @child_pack_dir: a new #GtkPackDirection
 947  *
 948  * Sets how widgets should be packed inside the children of a menubar.
 949  *
 950  * Since: 2.8
 951  */
 952 void
 953 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 954                                        GtkPackDirection  child_pack_dir)
 955 {
 956   GtkMenuBarPrivate *priv;
 957   GList *l;
 958
 959   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 960
 961   priv = menubar->priv;
 962
 963   if (priv->child_pack_direction != child_pack_dir)
 964     {
 965       priv->child_pack_direction = child_pack_dir;
 966
 967       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 968
 969       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 970         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 971
 972       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 973     }
 974 }