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 "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_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 317               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 318               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 319                                                  &toggle_size);
 320
 321               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 322                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 323                 child_requisition.width += toggle_size;
 324               else
 325                 child_requisition.height += toggle_size;
 326
 327               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 328                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 329                 {
 330                   requisition->width += child_requisition.width;
 331                   requisition->height = MAX (requisition->height, child_requisition.height);
 332                 }
 333               else
 334                 {
 335                   requisition->width = MAX (requisition->width, child_requisition.width);
 336                   requisition->height += child_requisition.height;
 337                 }
 338               nchildren += 1;
 339             }
 340         }
 341
 342       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 343
 344       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 345       requisition->width += (border_width +
 346                              ipadding +
 347                              BORDER_SPACING) * 2;
 348       requisition->height += (border_width +
 349                               ipadding +
 350                               BORDER_SPACING) * 2;
 351
 352       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 353         {
 354           GtkStyleContext *context;
 355           GtkBorder *border;
 356
 357           context = gtk_widget_get_style_context (widget);
 358
 359           gtk_style_context_get (context, 0,
 360                                  "border-width", &border,
 361                                  NULL);
 362
 363           requisition->width += border->left + border->right;
 364           requisition->height += border->top + border->bottom;
 365           gtk_border_free (border);
 366         }
 367     }
 368 }
 369
 370 static void
 371 gtk_menu_bar_get_preferred_width (GtkWidget *widget,
 372                                   gint      *minimum,
 373                                   gint      *natural)
 374 {
 375   GtkRequisition requisition;
 376
 377   gtk_menu_bar_size_request (widget, &requisition);
 378
 379   *minimum = *natural = requisition.width;
 380 }
 381
 382 static void
 383 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 384                                    gint      *minimum,
 385                                    gint      *natural)
 386 {
 387   GtkRequisition requisition;
 388
 389   gtk_menu_bar_size_request (widget, &requisition);
 390
 391   *minimum = *natural = requisition.height;
 392 }
 393
 394 static void
 395 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 396                             GtkAllocation *allocation)
 397 {
 398   GtkMenuBar *menu_bar;
 399   GtkMenuShell *menu_shell;
 400   GtkMenuBarPrivate *priv;
 401   GtkWidget *child;
 402   GList *children;
 403   GtkAllocation child_allocation;
 404   GtkRequisition child_requisition;
 405   guint offset;
 406   GtkTextDirection direction;
 407   gint ltr_x, ltr_y;
 408   gint ipadding;
 409   guint border_width;
 410
 411   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 412   g_return_if_fail (allocation != NULL);
 413
 414   menu_bar = GTK_MENU_BAR (widget);
 415   menu_shell = GTK_MENU_SHELL (widget);
 416   priv = menu_bar->priv;
 417
 418   direction = gtk_widget_get_direction (widget);
 419
 420   gtk_widget_set_allocation (widget, allocation);
 421
 422   if (gtk_widget_get_realized (widget))
 423     gdk_window_move_resize (gtk_widget_get_window (widget),
 424                             allocation->x, allocation->y,
 425                             allocation->width, allocation->height);
 426
 427   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 428
 429   if (menu_shell->priv->children)
 430     {
 431       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 432       child_allocation.x = (border_width +
 433                             ipadding +
 434                             BORDER_SPACING);
 435       child_allocation.y = (border_width +
 436                             BORDER_SPACING);
 437
 438       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 439         {
 440           GtkStyleContext *context;
 441           GtkBorder *border;
 442
 443           context = gtk_widget_get_style_context (widget);
 444           gtk_style_context_get (context, 0,
 445                                  "border-width", &border,
 446                                  NULL);
 447
 448           child_allocation.x += border->left;
 449           child_allocation.y += border->top;
 450
 451           gtk_border_free (border);
 452         }
 453
 454       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 455           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 456         {
 457           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 458
 459           offset = child_allocation.x;  /* Window edge to menubar start */
 460           ltr_x = child_allocation.x;
 461
 462           children = menu_shell->priv->children;
 463           while (children)
 464             {
 465               gint toggle_size;
 466
 467               child = children->data;
 468               children = children->next;
 469
 470               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 471                                                  &toggle_size);
 472               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 473
 474               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 475                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 476                 child_requisition.width += toggle_size;
 477               else
 478                 child_requisition.height += toggle_size;
 479
 480               /* Support for the right justified help menu */
 481               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 482                   && (GTK_MENU_ITEM(child)->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) && (GTK_IS_MENU_ITEM(child))
 532                   && (GTK_MENU_ITEM(child)->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 }