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 "gtkmenuitemprivate.h"
  36 #include "gtkmenuprivate.h"
  37 #include "gtkmenushellprivate.h"
  38 #include "gtksettings.h"
  39 #include "gtksizerequest.h"
  40 #include "gtkwindow.h"
  41
  42 #include "gtkintl.h"
  43 #include "gtkprivate.h"
  44
  45 #define BORDER_SPACING  0
  46 #define DEFAULT_IPADDING 1
  47
  48 /* Properties */
  49 enum {
  50   PROP_0,
  51   PROP_PACK_DIRECTION,
  52   PROP_CHILD_PACK_DIRECTION
  53 };
  54
  55 struct _GtkMenuBarPrivate
  56 {
  57   GtkPackDirection pack_direction;
  58   GtkPackDirection child_pack_direction;
  59 };
  60
  61
  62 static void gtk_menu_bar_set_property      (GObject             *object,
  63                                             guint                prop_id,
  64                                             const GValue        *value,
  65                                             GParamSpec          *pspec);
  66 static void gtk_menu_bar_get_property      (GObject             *object,
  67                                             guint                prop_id,
  68                                             GValue              *value,
  69                                             GParamSpec          *pspec);
  70 static void gtk_menu_bar_size_request      (GtkWidget       *widget,
  71                                             GtkRequisition  *requisition);
  72 static void gtk_menu_bar_get_preferred_width (GtkWidget     *widget,
  73                                               gint          *minimum,
  74                                               gint          *natural);
  75 static void gtk_menu_bar_get_preferred_height (GtkWidget    *widget,
  76                                                gint         *minimum,
  77                                                gint         *natural);
  78 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  79                                             GtkAllocation   *allocation);
  80 static gint gtk_menu_bar_draw              (GtkWidget       *widget,
  81                                             cairo_t         *cr);
  82 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  83                                             GtkWidget       *old_toplevel);
  84 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  85 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  86                                             GtkMenuDirectionType direction);
  87
  88 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  89
  90 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  91
  92 static void
  93 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  94 {
  95   GObjectClass *gobject_class;
  96   GtkWidgetClass *widget_class;
  97   GtkMenuShellClass *menu_shell_class;
  98
  99   GtkBindingSet *binding_set;
 100
 101   gobject_class = (GObjectClass*) class;
 102   widget_class = (GtkWidgetClass*) class;
 103   menu_shell_class = (GtkMenuShellClass*) class;
 104
 105   gobject_class->get_property = gtk_menu_bar_get_property;
 106   gobject_class->set_property = gtk_menu_bar_set_property;
 107
 108   widget_class->get_preferred_width = gtk_menu_bar_get_preferred_width;
 109   widget_class->get_preferred_height = gtk_menu_bar_get_preferred_height;
 110   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 111   widget_class->draw = gtk_menu_bar_draw;
 112   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 113
 114   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 115   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 116   menu_shell_class->move_current = gtk_menu_bar_move_current;
 117
 118   binding_set = gtk_binding_set_by_class (class);
 119   gtk_binding_entry_add_signal (binding_set,
 120                                 GDK_KEY_Left, 0,
 121                                 "move-current", 1,
 122                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 123                                 GTK_MENU_DIR_PREV);
 124   gtk_binding_entry_add_signal (binding_set,
 125                                 GDK_KEY_KP_Left, 0,
 126                                 "move-current", 1,
 127                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 128                                 GTK_MENU_DIR_PREV);
 129   gtk_binding_entry_add_signal (binding_set,
 130                                 GDK_KEY_Right, 0,
 131                                 "move-current", 1,
 132                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 133                                 GTK_MENU_DIR_NEXT);
 134   gtk_binding_entry_add_signal (binding_set,
 135                                 GDK_KEY_KP_Right, 0,
 136                                 "move-current", 1,
 137                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 138                                 GTK_MENU_DIR_NEXT);
 139   gtk_binding_entry_add_signal (binding_set,
 140                                 GDK_KEY_Up, 0,
 141                                 "move-current", 1,
 142                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 143                                 GTK_MENU_DIR_PARENT);
 144   gtk_binding_entry_add_signal (binding_set,
 145                                 GDK_KEY_KP_Up, 0,
 146                                 "move-current", 1,
 147                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 148                                 GTK_MENU_DIR_PARENT);
 149   gtk_binding_entry_add_signal (binding_set,
 150                                 GDK_KEY_Down, 0,
 151                                 "move-current", 1,
 152                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 153                                 GTK_MENU_DIR_CHILD);
 154   gtk_binding_entry_add_signal (binding_set,
 155                                 GDK_KEY_KP_Down, 0,
 156                                 "move-current", 1,
 157                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 158                                 GTK_MENU_DIR_CHILD);
 159
 160   /**
 161    * GtkMenuBar:pack-direction:
 162    *
 163    * The pack direction of the menubar. It determines how
 164    * menuitems are arranged in the menubar.
 165    *
 166    * Since: 2.8
 167    */
 168   g_object_class_install_property (gobject_class,
 169                                    PROP_PACK_DIRECTION,
 170                                    g_param_spec_enum ("pack-direction",
 171                                                       P_("Pack direction"),
 172                                                       P_("The pack direction of the menubar"),
 173                                                       GTK_TYPE_PACK_DIRECTION,
 174                                                       GTK_PACK_DIRECTION_LTR,
 175                                                       GTK_PARAM_READWRITE));
 176
 177   /**
 178    * GtkMenuBar:child-pack-direction:
 179    *
 180    * The child pack direction of the menubar. It determines how
 181    * the widgets contained in child menuitems are arranged.
 182    *
 183    * Since: 2.8
 184    */
 185   g_object_class_install_property (gobject_class,
 186                                    PROP_CHILD_PACK_DIRECTION,
 187                                    g_param_spec_enum ("child-pack-direction",
 188                                                       P_("Child Pack direction"),
 189                                                       P_("The child pack direction of the menubar"),
 190                                                       GTK_TYPE_PACK_DIRECTION,
 191                                                       GTK_PACK_DIRECTION_LTR,
 192                                                       GTK_PARAM_READWRITE));
 193
 194
 195   gtk_widget_class_install_style_property (widget_class,
 196                                            g_param_spec_enum ("shadow-type",
 197                                                               P_("Shadow type"),
 198                                                               P_("Style of bevel around the menubar"),
 199                                                               GTK_TYPE_SHADOW_TYPE,
 200                                                               GTK_SHADOW_OUT,
 201                                                               GTK_PARAM_READABLE));
 202
 203   gtk_widget_class_install_style_property (widget_class,
 204                                            g_param_spec_int ("internal-padding",
 205                                                              P_("Internal padding"),
 206                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 207                                                              0,
 208                                                              G_MAXINT,
 209                                                              DEFAULT_IPADDING,
 210                                                              GTK_PARAM_READABLE));
 211
 212   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 213 }
 214
 215 static void
 216 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 217 {
 218   GtkStyleContext *context;
 219
 220   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 221                                                 GTK_TYPE_MENU_BAR,
 222                                                 GtkMenuBarPrivate);
 223
 224   context = gtk_widget_get_style_context (GTK_WIDGET (menu_bar));
 225   gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUBAR);
 226 }
 227
 228 GtkWidget*
 229 gtk_menu_bar_new (void)
 230 {
 231   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 232 }
 233
 234 static void
 235 gtk_menu_bar_set_property (GObject      *object,
 236                            guint         prop_id,
 237                            const GValue *value,
 238                            GParamSpec   *pspec)
 239 {
 240   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 241
 242   switch (prop_id)
 243     {
 244     case PROP_PACK_DIRECTION:
 245       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 246       break;
 247     case PROP_CHILD_PACK_DIRECTION:
 248       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 249       break;
 250     default:
 251       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 252       break;
 253     }
 254 }
 255
 256 static void
 257 gtk_menu_bar_get_property (GObject    *object,
 258                            guint       prop_id,
 259                            GValue     *value,
 260                            GParamSpec *pspec)
 261 {
 262   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 263
 264   switch (prop_id)
 265     {
 266     case PROP_PACK_DIRECTION:
 267       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 268       break;
 269     case PROP_CHILD_PACK_DIRECTION:
 270       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 271       break;
 272     default:
 273       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 274       break;
 275     }
 276 }
 277
 278 static void
 279 gtk_menu_bar_size_request (GtkWidget      *widget,
 280                            GtkRequisition *requisition)
 281 {
 282   GtkMenuBar *menu_bar;
 283   GtkMenuBarPrivate *priv;
 284   GtkMenuShell *menu_shell;
 285   GtkWidget *child;
 286   GList *children;
 287   gint nchildren;
 288   GtkRequisition child_requisition;
 289   gint ipadding;
 290   guint border_width;
 291
 292   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 293   g_return_if_fail (requisition != NULL);
 294
 295   requisition->width = 0;
 296   requisition->height = 0;
 297
 298   if (gtk_widget_get_visible (widget))
 299     {
 300       menu_bar = GTK_MENU_BAR (widget);
 301       menu_shell = GTK_MENU_SHELL (widget);
 302       priv = menu_bar->priv;
 303
 304       nchildren = 0;
 305       children = menu_shell->priv->children;
 306
 307       while (children)
 308         {
 309           child = children->data;
 310           children = children->next;
 311
 312           if (gtk_widget_get_visible (child))
 313             {
 314               gint toggle_size;
 315
 316               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 317               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 318                                                  &toggle_size);
 319
 320               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 321                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 322                 child_requisition.width += toggle_size;
 323               else
 324                 child_requisition.height += toggle_size;
 325
 326               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 327                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 328                 {
 329                   requisition->width += child_requisition.width;
 330                   requisition->height = MAX (requisition->height, child_requisition.height);
 331                 }
 332               else
 333                 {
 334                   requisition->width = MAX (requisition->width, child_requisition.width);
 335                   requisition->height += child_requisition.height;
 336                 }
 337               nchildren += 1;
 338             }
 339         }
 340
 341       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 342
 343       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 344       requisition->width += (border_width +
 345                              ipadding +
 346                              BORDER_SPACING) * 2;
 347       requisition->height += (border_width +
 348                               ipadding +
 349                               BORDER_SPACING) * 2;
 350
 351       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 352         {
 353           GtkStyleContext *context;
 354           GtkBorder *border;
 355
 356           context = gtk_widget_get_style_context (widget);
 357
 358           gtk_style_context_get (context, 0,
 359                                  "border-width", &border,
 360                                  NULL);
 361
 362           requisition->width += border->left + border->right;
 363           requisition->height += border->top + border->bottom;
 364           gtk_border_free (border);
 365         }
 366     }
 367 }
 368
 369 static void
 370 gtk_menu_bar_get_preferred_width (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.width;
 379 }
 380
 381 static void
 382 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 383                                    gint      *minimum,
 384                                    gint      *natural)
 385 {
 386   GtkRequisition requisition;
 387
 388   gtk_menu_bar_size_request (widget, &requisition);
 389
 390   *minimum = *natural = requisition.height;
 391 }
 392
 393 static void
 394 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 395                             GtkAllocation *allocation)
 396 {
 397   GtkMenuBar *menu_bar;
 398   GtkMenuShell *menu_shell;
 399   GtkMenuBarPrivate *priv;
 400   GtkWidget *child;
 401   GList *children;
 402   GtkAllocation child_allocation;
 403   GtkRequisition child_requisition;
 404   guint offset;
 405   GtkTextDirection direction;
 406   gint ltr_x, ltr_y;
 407   gint ipadding;
 408   guint border_width;
 409
 410   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 411   g_return_if_fail (allocation != NULL);
 412
 413   menu_bar = GTK_MENU_BAR (widget);
 414   menu_shell = GTK_MENU_SHELL (widget);
 415   priv = menu_bar->priv;
 416
 417   direction = gtk_widget_get_direction (widget);
 418
 419   gtk_widget_set_allocation (widget, allocation);
 420
 421   if (gtk_widget_get_realized (widget))
 422     gdk_window_move_resize (gtk_widget_get_window (widget),
 423                             allocation->x, allocation->y,
 424                             allocation->width, allocation->height);
 425
 426   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 427
 428   if (menu_shell->priv->children)
 429     {
 430       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 431       child_allocation.x = (border_width +
 432                             ipadding +
 433                             BORDER_SPACING);
 434       child_allocation.y = (border_width +
 435                             BORDER_SPACING);
 436
 437       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 438         {
 439           GtkStyleContext *context;
 440           GtkBorder *border;
 441
 442           context = gtk_widget_get_style_context (widget);
 443           gtk_style_context_get (context, 0,
 444                                  "border-width", &border,
 445                                  NULL);
 446
 447           child_allocation.x += border->left;
 448           child_allocation.y += border->top;
 449
 450           gtk_border_free (border);
 451         }
 452
 453       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 454           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 455         {
 456           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 457
 458           offset = child_allocation.x;  /* Window edge to menubar start */
 459           ltr_x = child_allocation.x;
 460
 461           children = menu_shell->priv->children;
 462           while (children)
 463             {
 464               gint toggle_size;
 465
 466               child = children->data;
 467               children = children->next;
 468
 469               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 470                                                  &toggle_size);
 471               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 472
 473               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 474                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 475                 child_requisition.width += toggle_size;
 476               else
 477                 child_requisition.height += toggle_size;
 478
 479               /* Support for the right justified help menu */
 480               if (children == NULL &&
 481                   GTK_IS_MENU_ITEM (child) &&
 482                   GTK_MENU_ITEM (child)->priv->right_justify)
 483                 {
 484                   ltr_x = allocation->width -
 485                     child_requisition.width - offset;
 486                 }
 487               if (gtk_widget_get_visible (child))
 488                 {
 489                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 490                     child_allocation.x = ltr_x;
 491                   else
 492                     child_allocation.x = allocation->width -
 493                       child_requisition.width - ltr_x;
 494
 495                   child_allocation.width = child_requisition.width;
 496
 497                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 498                                                       toggle_size);
 499                   gtk_widget_size_allocate (child, &child_allocation);
 500
 501                   ltr_x += child_allocation.width;
 502                 }
 503             }
 504         }
 505       else
 506         {
 507           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 508
 509           offset = child_allocation.y;  /* Window edge to menubar start */
 510           ltr_y = child_allocation.y;
 511
 512           children = menu_shell->priv->children;
 513           while (children)
 514             {
 515               gint toggle_size;
 516
 517               child = children->data;
 518               children = children->next;
 519
 520               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 521                                                  &toggle_size);
 522               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 523
 524               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 525                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 526                 child_requisition.width += toggle_size;
 527               else
 528                 child_requisition.height += toggle_size;
 529
 530               /* Support for the right justified help menu */
 531               if (children == NULL &&
 532                   GTK_IS_MENU_ITEM (child) &&
 533                   GTK_MENU_ITEM (child)->priv->right_justify)
 534                 {
 535                   ltr_y = allocation->height -
 536                     child_requisition.height - offset;
 537                 }
 538               if (gtk_widget_get_visible (child))
 539                 {
 540                   if ((direction == GTK_TEXT_DIR_LTR) ==
 541                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 542                     child_allocation.y = ltr_y;
 543                   else
 544                     child_allocation.y = allocation->height -
 545                       child_requisition.height - ltr_y;
 546                   child_allocation.height = child_requisition.height;
 547
 548                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 549                                                       toggle_size);
 550                   gtk_widget_size_allocate (child, &child_allocation);
 551
 552                   ltr_y += child_allocation.height;
 553                 }
 554             }
 555         }
 556     }
 557 }
 558
 559 static gint
 560 gtk_menu_bar_draw (GtkWidget *widget,
 561                    cairo_t   *cr)
 562 {
 563   GtkStyleContext *context;
 564   GtkStateFlags state;
 565   int border;
 566
 567   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 568   context = gtk_widget_get_style_context (widget);
 569
 570   state = gtk_widget_get_state_flags (widget);
 571   gtk_style_context_set_state (context, state);
 572
 573   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 574     gtk_render_background (context, cr,
 575                            border, border,
 576                            gtk_widget_get_allocated_width (widget) - border * 2,
 577                            gtk_widget_get_allocated_height (widget) - border * 2);
 578
 579   gtk_render_frame (context, cr,
 580                     border, border,
 581                     gtk_widget_get_allocated_width (widget) - border * 2,
 582                     gtk_widget_get_allocated_height (widget) - border * 2);
 583
 584   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 585
 586   return FALSE;
 587 }
 588
 589 static GList *
 590 get_menu_bars (GtkWindow *window)
 591 {
 592   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 593 }
 594
 595 static GList *
 596 get_viewable_menu_bars (GtkWindow *window)
 597 {
 598   GList *menu_bars;
 599   GList *viewable_menu_bars = NULL;
 600
 601   for (menu_bars = get_menu_bars (window);
 602        menu_bars;
 603        menu_bars = menu_bars->next)
 604     {
 605       GtkWidget *widget = menu_bars->data;
 606       gboolean viewable = TRUE;
 607
 608       while (widget)
 609         {
 610           if (!gtk_widget_get_mapped (widget))
 611             viewable = FALSE;
 612
 613           widget = gtk_widget_get_parent (widget);
 614         }
 615
 616       if (viewable)
 617         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 618     }
 619
 620   return g_list_reverse (viewable_menu_bars);
 621 }
 622
 623 static void
 624 set_menu_bars (GtkWindow *window,
 625                GList     *menubars)
 626 {
 627   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 628 }
 629
 630 static gboolean
 631 window_key_press_handler (GtkWidget   *widget,
 632                           GdkEventKey *event,
 633                           gpointer     data)
 634 {
 635   gchar *accel = NULL;
 636   gboolean retval = FALSE;
 637
 638   g_object_get (gtk_widget_get_settings (widget),
 639                 "gtk-menu-bar-accel", &accel,
 640                 NULL);
 641
 642   if (accel && *accel)
 643     {
 644       guint keyval = 0;
 645       GdkModifierType mods = 0;
 646
 647       gtk_accelerator_parse (accel, &keyval, &mods);
 648
 649       if (keyval == 0)
 650         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 651
 652       /* FIXME this is wrong, needs to be in the global accel resolution
 653        * thing, to properly consider i18n etc., but that probably requires
 654        * AccelGroup changes etc.
 655        */
 656       if (event->keyval == keyval &&
 657           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 658            (mods & gtk_accelerator_get_default_mod_mask ())))
 659         {
 660           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 661           GList *menubars;
 662
 663           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 664                                                 GTK_DIR_TAB_FORWARD, NULL);
 665           g_list_free (tmp_menubars);
 666
 667           if (menubars)
 668             {
 669               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 670
 671               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 672               _gtk_menu_shell_activate (menu_shell);
 673               gtk_menu_shell_select_first (menu_shell, FALSE);
 674
 675               g_list_free (menubars);
 676
 677               retval = TRUE;
 678             }
 679         }
 680     }
 681
 682   g_free (accel);
 683
 684   return retval;
 685 }
 686
 687 static void
 688 add_to_window (GtkWindow  *window,
 689                GtkMenuBar *menubar)
 690 {
 691   GList *menubars = get_menu_bars (window);
 692
 693   if (!menubars)
 694     {
 695       g_signal_connect (window,
 696                         "key-press-event",
 697                         G_CALLBACK (window_key_press_handler),
 698                         NULL);
 699     }
 700
 701   set_menu_bars (window, g_list_prepend (menubars, menubar));
 702 }
 703
 704 static void
 705 remove_from_window (GtkWindow  *window,
 706                     GtkMenuBar *menubar)
 707 {
 708   GList *menubars = get_menu_bars (window);
 709
 710   menubars = g_list_remove (menubars, menubar);
 711
 712   if (!menubars)
 713     {
 714       g_signal_handlers_disconnect_by_func (window,
 715                                             window_key_press_handler,
 716                                             NULL);
 717     }
 718
 719   set_menu_bars (window, menubars);
 720 }
 721
 722 static void
 723 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 724                                 GtkWidget *old_toplevel)
 725 {
 726   GtkWidget *toplevel;
 727   GtkMenuBar *menubar;
 728
 729   menubar = GTK_MENU_BAR (widget);
 730
 731   toplevel = gtk_widget_get_toplevel (widget);
 732
 733   if (old_toplevel)
 734     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 735
 736   if (gtk_widget_is_toplevel (toplevel))
 737     add_to_window (GTK_WINDOW (toplevel), menubar);
 738 }
 739
 740 /**
 741  * _gtk_menu_bar_cycle_focus:
 742  * @menubar: a #GtkMenuBar
 743  * @dir: direction in which to cycle the focus
 744  *
 745  * Move the focus between menubars in the toplevel.
 746  **/
 747 void
 748 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 749                            GtkDirectionType  dir)
 750 {
 751   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 752   GtkMenuItem *to_activate = NULL;
 753
 754   if (gtk_widget_is_toplevel (toplevel))
 755     {
 756       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 757       GList *menubars;
 758       GList *current;
 759
 760       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 761                                             dir, GTK_WIDGET (menubar));
 762       g_list_free (tmp_menubars);
 763
 764       if (menubars)
 765         {
 766           current = g_list_find (menubars, menubar);
 767
 768           if (current && current->next)
 769             {
 770               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 771               if (new_menushell->priv->children)
 772                 to_activate = new_menushell->priv->children->data;
 773             }
 774         }
 775
 776       g_list_free (menubars);
 777     }
 778
 779   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 780
 781   if (to_activate)
 782     g_signal_emit_by_name (to_activate, "activate_item");
 783 }
 784
 785 static GtkShadowType
 786 get_shadow_type (GtkMenuBar *menubar)
 787 {
 788   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 789
 790   gtk_widget_style_get (GTK_WIDGET (menubar),
 791                         "shadow-type", &shadow_type,
 792                         NULL);
 793
 794   return shadow_type;
 795 }
 796
 797 static gint
 798 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 799 {
 800   gint popup_delay;
 801
 802   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 803                 "gtk-menu-bar-popup-delay", &popup_delay,
 804                 NULL);
 805
 806   return popup_delay;
 807 }
 808
 809 static void
 810 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 811                            GtkMenuDirectionType  direction)
 812 {
 813   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 814   GtkTextDirection text_dir;
 815   GtkPackDirection pack_dir;
 816
 817   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 818   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 819
 820   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 821      {
 822       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 823         {
 824           switch (direction)
 825             {
 826             case GTK_MENU_DIR_PREV:
 827               direction = GTK_MENU_DIR_NEXT;
 828               break;
 829             case GTK_MENU_DIR_NEXT:
 830               direction = GTK_MENU_DIR_PREV;
 831               break;
 832             default: ;
 833             }
 834         }
 835     }
 836   else
 837     {
 838       switch (direction)
 839         {
 840         case GTK_MENU_DIR_PARENT:
 841           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 842             direction = GTK_MENU_DIR_PREV;
 843           else
 844             direction = GTK_MENU_DIR_NEXT;
 845           break;
 846         case GTK_MENU_DIR_CHILD:
 847           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 848             direction = GTK_MENU_DIR_NEXT;
 849           else
 850             direction = GTK_MENU_DIR_PREV;
 851           break;
 852         case GTK_MENU_DIR_PREV:
 853           if (text_dir == GTK_TEXT_DIR_RTL)
 854             direction = GTK_MENU_DIR_CHILD;
 855           else
 856             direction = GTK_MENU_DIR_PARENT;
 857           break;
 858         case GTK_MENU_DIR_NEXT:
 859           if (text_dir == GTK_TEXT_DIR_RTL)
 860             direction = GTK_MENU_DIR_PARENT;
 861           else
 862             direction = GTK_MENU_DIR_CHILD;
 863           break;
 864         default: ;
 865         }
 866     }
 867
 868   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 869 }
 870
 871 /**
 872  * gtk_menu_bar_get_pack_direction:
 873  * @menubar: a #GtkMenuBar
 874  *
 875  * Retrieves the current pack direction of the menubar.
 876  * See gtk_menu_bar_set_pack_direction().
 877  *
 878  * Return value: the pack direction
 879  *
 880  * Since: 2.8
 881  */
 882 GtkPackDirection
 883 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 884 {
 885   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 886                         GTK_PACK_DIRECTION_LTR);
 887
 888   return menubar->priv->pack_direction;
 889 }
 890
 891 /**
 892  * gtk_menu_bar_set_pack_direction:
 893  * @menubar: a #GtkMenuBar
 894  * @pack_dir: a new #GtkPackDirection
 895  *
 896  * Sets how items should be packed inside a menubar.
 897  *
 898  * Since: 2.8
 899  */
 900 void
 901 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 902                                  GtkPackDirection  pack_dir)
 903 {
 904   GtkMenuBarPrivate *priv;
 905   GList *l;
 906
 907   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 908
 909   priv = menubar->priv;
 910
 911   if (priv->pack_direction != pack_dir)
 912     {
 913       priv->pack_direction = pack_dir;
 914
 915       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 916
 917       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 918         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 919
 920       g_object_notify (G_OBJECT (menubar), "pack-direction");
 921     }
 922 }
 923
 924 /**
 925  * gtk_menu_bar_get_child_pack_direction:
 926  * @menubar: a #GtkMenuBar
 927  *
 928  * Retrieves the current child pack direction of the menubar.
 929  * See gtk_menu_bar_set_child_pack_direction().
 930  *
 931  * Return value: the child pack direction
 932  *
 933  * Since: 2.8
 934  */
 935 GtkPackDirection
 936 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 937 {
 938   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 939                         GTK_PACK_DIRECTION_LTR);
 940
 941   return menubar->priv->child_pack_direction;
 942 }
 943
 944 /**
 945  * gtk_menu_bar_set_child_pack_direction:
 946  * @menubar: a #GtkMenuBar
 947  * @child_pack_dir: a new #GtkPackDirection
 948  *
 949  * Sets how widgets should be packed inside the children of a menubar.
 950  *
 951  * Since: 2.8
 952  */
 953 void
 954 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 955                                        GtkPackDirection  child_pack_dir)
 956 {
 957   GtkMenuBarPrivate *priv;
 958   GList *l;
 959
 960   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 961
 962   priv = menubar->priv;
 963
 964   if (priv->child_pack_direction != child_pack_dir)
 965     {
 966       priv->child_pack_direction = child_pack_dir;
 967
 968       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 969
 970       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 971         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 972
 973       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 974     }
 975 }