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   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->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_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 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           gint border_width;
 355
 356           context = gtk_widget_get_style_context (widget);
 357
 358           gtk_style_context_get (context, 0,
 359                                  "border-width", &border_width,
 360                                  NULL);
 361
 362           requisition->width += border_width * 2;
 363           requisition->height += border_width * 2;
 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->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           gint border_width;
 440
 441           context = gtk_widget_get_style_context (widget);
 442           gtk_style_context_get (context, 0,
 443                                  "border-width", &border_width,
 444                                  NULL);
 445
 446           child_allocation.x += border_width;
 447           child_allocation.y += border_width;
 448         }
 449
 450       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 451           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 452         {
 453           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 454
 455           offset = child_allocation.x;  /* Window edge to menubar start */
 456           ltr_x = child_allocation.x;
 457
 458           children = menu_shell->children;
 459           while (children)
 460             {
 461               gint toggle_size;
 462
 463               child = children->data;
 464               children = children->next;
 465
 466               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 467                                                  &toggle_size);
 468               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 469
 470               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 471                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 472                 child_requisition.width += toggle_size;
 473               else
 474                 child_requisition.height += toggle_size;
 475
 476               /* Support for the right justified help menu */
 477               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 478                   && (GTK_MENU_ITEM(child)->right_justify))
 479                 {
 480                   ltr_x = allocation->width -
 481                     child_requisition.width - offset;
 482                 }
 483               if (gtk_widget_get_visible (child))
 484                 {
 485                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 486                     child_allocation.x = ltr_x;
 487                   else
 488                     child_allocation.x = allocation->width -
 489                       child_requisition.width - ltr_x;
 490
 491                   child_allocation.width = child_requisition.width;
 492
 493                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 494                                                       toggle_size);
 495                   gtk_widget_size_allocate (child, &child_allocation);
 496
 497                   ltr_x += child_allocation.width;
 498                 }
 499             }
 500         }
 501       else
 502         {
 503           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 504
 505           offset = child_allocation.y;  /* Window edge to menubar start */
 506           ltr_y = child_allocation.y;
 507
 508           children = menu_shell->children;
 509           while (children)
 510             {
 511               gint toggle_size;
 512
 513               child = children->data;
 514               children = children->next;
 515
 516               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 517                                                  &toggle_size);
 518               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 519
 520               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 521                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 522                 child_requisition.width += toggle_size;
 523               else
 524                 child_requisition.height += toggle_size;
 525
 526               /* Support for the right justified help menu */
 527               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 528                   && (GTK_MENU_ITEM(child)->right_justify))
 529                 {
 530                   ltr_y = allocation->height -
 531                     child_requisition.height - offset;
 532                 }
 533               if (gtk_widget_get_visible (child))
 534                 {
 535                   if ((direction == GTK_TEXT_DIR_LTR) ==
 536                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 537                     child_allocation.y = ltr_y;
 538                   else
 539                     child_allocation.y = allocation->height -
 540                       child_requisition.height - ltr_y;
 541                   child_allocation.height = child_requisition.height;
 542
 543                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 544                                                       toggle_size);
 545                   gtk_widget_size_allocate (child, &child_allocation);
 546
 547                   ltr_y += child_allocation.height;
 548                 }
 549             }
 550         }
 551     }
 552 }
 553
 554 static gint
 555 gtk_menu_bar_draw (GtkWidget *widget,
 556                    cairo_t   *cr)
 557 {
 558   GtkStyleContext *context;
 559   GtkStateFlags state;
 560   int border;
 561
 562   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 563   context = gtk_widget_get_style_context (widget);
 564
 565   state = gtk_widget_get_state_flags (widget);
 566   gtk_style_context_set_state (context, state);
 567
 568   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 569     gtk_render_background (context, cr,
 570                            border, border,
 571                            gtk_widget_get_allocated_width (widget) - border * 2,
 572                            gtk_widget_get_allocated_height (widget) - border * 2);
 573
 574   gtk_render_frame (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_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 580
 581   return FALSE;
 582 }
 583
 584 static GList *
 585 get_menu_bars (GtkWindow *window)
 586 {
 587   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 588 }
 589
 590 static GList *
 591 get_viewable_menu_bars (GtkWindow *window)
 592 {
 593   GList *menu_bars;
 594   GList *viewable_menu_bars = NULL;
 595
 596   for (menu_bars = get_menu_bars (window);
 597        menu_bars;
 598        menu_bars = menu_bars->next)
 599     {
 600       GtkWidget *widget = menu_bars->data;
 601       gboolean viewable = TRUE;
 602
 603       while (widget)
 604         {
 605           if (!gtk_widget_get_mapped (widget))
 606             viewable = FALSE;
 607
 608           widget = gtk_widget_get_parent (widget);
 609         }
 610
 611       if (viewable)
 612         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 613     }
 614
 615   return g_list_reverse (viewable_menu_bars);
 616 }
 617
 618 static void
 619 set_menu_bars (GtkWindow *window,
 620                GList     *menubars)
 621 {
 622   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 623 }
 624
 625 static gboolean
 626 window_key_press_handler (GtkWidget   *widget,
 627                           GdkEventKey *event,
 628                           gpointer     data)
 629 {
 630   gchar *accel = NULL;
 631   gboolean retval = FALSE;
 632
 633   g_object_get (gtk_widget_get_settings (widget),
 634                 "gtk-menu-bar-accel", &accel,
 635                 NULL);
 636
 637   if (accel && *accel)
 638     {
 639       guint keyval = 0;
 640       GdkModifierType mods = 0;
 641
 642       gtk_accelerator_parse (accel, &keyval, &mods);
 643
 644       if (keyval == 0)
 645         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 646
 647       /* FIXME this is wrong, needs to be in the global accel resolution
 648        * thing, to properly consider i18n etc., but that probably requires
 649        * AccelGroup changes etc.
 650        */
 651       if (event->keyval == keyval &&
 652           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 653            (mods & gtk_accelerator_get_default_mod_mask ())))
 654         {
 655           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 656           GList *menubars;
 657
 658           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 659                                                 GTK_DIR_TAB_FORWARD, NULL);
 660           g_list_free (tmp_menubars);
 661
 662           if (menubars)
 663             {
 664               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 665
 666               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 667               _gtk_menu_shell_activate (menu_shell);
 668               gtk_menu_shell_select_first (menu_shell, FALSE);
 669
 670               g_list_free (menubars);
 671
 672               retval = TRUE;
 673             }
 674         }
 675     }
 676
 677   g_free (accel);
 678
 679   return retval;
 680 }
 681
 682 static void
 683 add_to_window (GtkWindow  *window,
 684                GtkMenuBar *menubar)
 685 {
 686   GList *menubars = get_menu_bars (window);
 687
 688   if (!menubars)
 689     {
 690       g_signal_connect (window,
 691                         "key-press-event",
 692                         G_CALLBACK (window_key_press_handler),
 693                         NULL);
 694     }
 695
 696   set_menu_bars (window, g_list_prepend (menubars, menubar));
 697 }
 698
 699 static void
 700 remove_from_window (GtkWindow  *window,
 701                     GtkMenuBar *menubar)
 702 {
 703   GList *menubars = get_menu_bars (window);
 704
 705   menubars = g_list_remove (menubars, menubar);
 706
 707   if (!menubars)
 708     {
 709       g_signal_handlers_disconnect_by_func (window,
 710                                             window_key_press_handler,
 711                                             NULL);
 712     }
 713
 714   set_menu_bars (window, menubars);
 715 }
 716
 717 static void
 718 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 719                                 GtkWidget *old_toplevel)
 720 {
 721   GtkWidget *toplevel;
 722   GtkMenuBar *menubar;
 723
 724   menubar = GTK_MENU_BAR (widget);
 725
 726   toplevel = gtk_widget_get_toplevel (widget);
 727
 728   if (old_toplevel)
 729     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 730
 731   if (gtk_widget_is_toplevel (toplevel))
 732     add_to_window (GTK_WINDOW (toplevel), menubar);
 733 }
 734
 735 /**
 736  * _gtk_menu_bar_cycle_focus:
 737  * @menubar: a #GtkMenuBar
 738  * @dir: direction in which to cycle the focus
 739  *
 740  * Move the focus between menubars in the toplevel.
 741  **/
 742 void
 743 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 744                            GtkDirectionType  dir)
 745 {
 746   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 747   GtkMenuItem *to_activate = NULL;
 748
 749   if (gtk_widget_is_toplevel (toplevel))
 750     {
 751       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 752       GList *menubars;
 753       GList *current;
 754
 755       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 756                                             dir, GTK_WIDGET (menubar));
 757       g_list_free (tmp_menubars);
 758
 759       if (menubars)
 760         {
 761           current = g_list_find (menubars, menubar);
 762
 763           if (current && current->next)
 764             {
 765               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 766               if (new_menushell->children)
 767                 to_activate = new_menushell->children->data;
 768             }
 769         }
 770
 771       g_list_free (menubars);
 772     }
 773
 774   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 775
 776   if (to_activate)
 777     g_signal_emit_by_name (to_activate, "activate_item");
 778 }
 779
 780 static GtkShadowType
 781 get_shadow_type (GtkMenuBar *menubar)
 782 {
 783   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 784
 785   gtk_widget_style_get (GTK_WIDGET (menubar),
 786                         "shadow-type", &shadow_type,
 787                         NULL);
 788
 789   return shadow_type;
 790 }
 791
 792 static gint
 793 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 794 {
 795   gint popup_delay;
 796
 797   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 798                 "gtk-menu-bar-popup-delay", &popup_delay,
 799                 NULL);
 800
 801   return popup_delay;
 802 }
 803
 804 static void
 805 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 806                            GtkMenuDirectionType  direction)
 807 {
 808   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 809   GtkTextDirection text_dir;
 810   GtkPackDirection pack_dir;
 811
 812   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 813   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 814
 815   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 816      {
 817       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 818         {
 819           switch (direction)
 820             {
 821             case GTK_MENU_DIR_PREV:
 822               direction = GTK_MENU_DIR_NEXT;
 823               break;
 824             case GTK_MENU_DIR_NEXT:
 825               direction = GTK_MENU_DIR_PREV;
 826               break;
 827             default: ;
 828             }
 829         }
 830     }
 831   else
 832     {
 833       switch (direction)
 834         {
 835         case GTK_MENU_DIR_PARENT:
 836           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 837             direction = GTK_MENU_DIR_PREV;
 838           else
 839             direction = GTK_MENU_DIR_NEXT;
 840           break;
 841         case GTK_MENU_DIR_CHILD:
 842           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 843             direction = GTK_MENU_DIR_NEXT;
 844           else
 845             direction = GTK_MENU_DIR_PREV;
 846           break;
 847         case GTK_MENU_DIR_PREV:
 848           if (text_dir == GTK_TEXT_DIR_RTL)
 849             direction = GTK_MENU_DIR_CHILD;
 850           else
 851             direction = GTK_MENU_DIR_PARENT;
 852           break;
 853         case GTK_MENU_DIR_NEXT:
 854           if (text_dir == GTK_TEXT_DIR_RTL)
 855             direction = GTK_MENU_DIR_PARENT;
 856           else
 857             direction = GTK_MENU_DIR_CHILD;
 858           break;
 859         default: ;
 860         }
 861     }
 862
 863   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 864 }
 865
 866 /**
 867  * gtk_menu_bar_get_pack_direction:
 868  * @menubar: a #GtkMenuBar
 869  *
 870  * Retrieves the current pack direction of the menubar.
 871  * See gtk_menu_bar_set_pack_direction().
 872  *
 873  * Return value: the pack direction
 874  *
 875  * Since: 2.8
 876  */
 877 GtkPackDirection
 878 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 879 {
 880   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 881                         GTK_PACK_DIRECTION_LTR);
 882
 883   return menubar->priv->pack_direction;
 884 }
 885
 886 /**
 887  * gtk_menu_bar_set_pack_direction:
 888  * @menubar: a #GtkMenuBar
 889  * @pack_dir: a new #GtkPackDirection
 890  *
 891  * Sets how items should be packed inside a menubar.
 892  *
 893  * Since: 2.8
 894  */
 895 void
 896 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 897                                  GtkPackDirection  pack_dir)
 898 {
 899   GtkMenuBarPrivate *priv;
 900   GList *l;
 901
 902   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 903
 904   priv = menubar->priv;
 905
 906   if (priv->pack_direction != pack_dir)
 907     {
 908       priv->pack_direction = pack_dir;
 909
 910       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 911
 912       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 913         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 914
 915       g_object_notify (G_OBJECT (menubar), "pack-direction");
 916     }
 917 }
 918
 919 /**
 920  * gtk_menu_bar_get_child_pack_direction:
 921  * @menubar: a #GtkMenuBar
 922  *
 923  * Retrieves the current child pack direction of the menubar.
 924  * See gtk_menu_bar_set_child_pack_direction().
 925  *
 926  * Return value: the child pack direction
 927  *
 928  * Since: 2.8
 929  */
 930 GtkPackDirection
 931 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 932 {
 933   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 934                         GTK_PACK_DIRECTION_LTR);
 935
 936   return menubar->priv->child_pack_direction;
 937 }
 938
 939 /**
 940  * gtk_menu_bar_set_child_pack_direction:
 941  * @menubar: a #GtkMenuBar
 942  * @child_pack_dir: a new #GtkPackDirection
 943  *
 944  * Sets how widgets should be packed inside the children of a menubar.
 945  *
 946  * Since: 2.8
 947  */
 948 void
 949 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 950                                        GtkPackDirection  child_pack_dir)
 951 {
 952   GtkMenuBarPrivate *priv;
 953   GList *l;
 954
 955   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 956
 957   priv = menubar->priv;
 958
 959   if (priv->child_pack_direction != child_pack_dir)
 960     {
 961       priv->child_pack_direction = child_pack_dir;
 962
 963       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 964
 965       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 966         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 967
 968       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 969     }
 970 }