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 #define GTK_MENU_INTERNALS
  28
  29 #include "config.h"
  30 #include "gdk/gdkkeysyms.h"
  31 #include "gtkbindings.h"
  32 #include "gtkmain.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkmenubar.h"
  35 #include "gtkmenuitem.h"
  36 #include "gtksettings.h"
  37 #include "gtkintl.h"
  38 #include "gtkwindow.h"
  39 #include "gtkprivate.h"
  40
  41 #define BORDER_SPACING  0
  42 #define DEFAULT_IPADDING 1
  43
  44 /* Properties */
  45 enum {
  46   PROP_0,
  47   PROP_PACK_DIRECTION,
  48   PROP_CHILD_PACK_DIRECTION
  49 };
  50
  51 typedef struct _GtkMenuBarPrivate GtkMenuBarPrivate;
  52 struct _GtkMenuBarPrivate
  53 {
  54   GtkPackDirection pack_direction;
  55   GtkPackDirection child_pack_direction;
  56 };
  57
  58 #define GTK_MENU_BAR_GET_PRIVATE(o)  \
  59   (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_MENU_BAR, GtkMenuBarPrivate))
  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_size_allocate     (GtkWidget       *widget,
  73                                             GtkAllocation   *allocation);
  74 static void gtk_menu_bar_paint             (GtkWidget       *widget,
  75                                             GdkRectangle    *area);
  76 static gint gtk_menu_bar_expose            (GtkWidget       *widget,
  77                                             GdkEventExpose  *event);
  78 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  79                                             GtkWidget       *old_toplevel);
  80 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  81 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  82                                             GtkMenuDirectionType direction);
  83
  84 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  85
  86 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  87
  88 static void
  89 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  90 {
  91   GObjectClass *gobject_class;
  92   GtkWidgetClass *widget_class;
  93   GtkMenuShellClass *menu_shell_class;
  94
  95   GtkBindingSet *binding_set;
  96
  97   gobject_class = (GObjectClass*) class;
  98   widget_class = (GtkWidgetClass*) class;
  99   menu_shell_class = (GtkMenuShellClass*) class;
 100
 101   gobject_class->get_property = gtk_menu_bar_get_property;
 102   gobject_class->set_property = gtk_menu_bar_set_property;
 103
 104   widget_class->size_request = gtk_menu_bar_size_request;
 105   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 106   widget_class->expose_event = gtk_menu_bar_expose;
 107   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 108
 109   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 110   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 111   menu_shell_class->move_current = gtk_menu_bar_move_current;
 112
 113   binding_set = gtk_binding_set_by_class (class);
 114   gtk_binding_entry_add_signal (binding_set,
 115                                 GDK_Left, 0,
 116                                 "move-current", 1,
 117                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 118                                 GTK_MENU_DIR_PREV);
 119   gtk_binding_entry_add_signal (binding_set,
 120                                 GDK_KP_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_Right, 0,
 126                                 "move-current", 1,
 127                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 128                                 GTK_MENU_DIR_NEXT);
 129   gtk_binding_entry_add_signal (binding_set,
 130                                 GDK_KP_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_Up, 0,
 136                                 "move-current", 1,
 137                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 138                                 GTK_MENU_DIR_PARENT);
 139   gtk_binding_entry_add_signal (binding_set,
 140                                 GDK_KP_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_Down, 0,
 146                                 "move-current", 1,
 147                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 148                                 GTK_MENU_DIR_CHILD);
 149   gtk_binding_entry_add_signal (binding_set,
 150                                 GDK_KP_Down, 0,
 151                                 "move-current", 1,
 152                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 153                                 GTK_MENU_DIR_CHILD);
 154
 155   /**
 156    * GtkMenuBar:pack-direction:
 157    *
 158    * The pack direction of the menubar. It determines how
 159    * menuitems are arranged in the menubar.
 160    *
 161    * Since: 2.8
 162    */
 163   g_object_class_install_property (gobject_class,
 164                                    PROP_PACK_DIRECTION,
 165                                    g_param_spec_enum ("pack-direction",
 166                                                       P_("Pack direction"),
 167                                                       P_("The pack direction of the menubar"),
 168                                                       GTK_TYPE_PACK_DIRECTION,
 169                                                       GTK_PACK_DIRECTION_LTR,
 170                                                       GTK_PARAM_READWRITE));
 171
 172   /**
 173    * GtkMenuBar:child-pack-direction:
 174    *
 175    * The child pack direction of the menubar. It determines how
 176    * the widgets contained in child menuitems are arranged.
 177    *
 178    * Since: 2.8
 179    */
 180   g_object_class_install_property (gobject_class,
 181                                    PROP_CHILD_PACK_DIRECTION,
 182                                    g_param_spec_enum ("child-pack-direction",
 183                                                       P_("Child Pack direction"),
 184                                                       P_("The child pack direction of the menubar"),
 185                                                       GTK_TYPE_PACK_DIRECTION,
 186                                                       GTK_PACK_DIRECTION_LTR,
 187                                                       GTK_PARAM_READWRITE));
 188
 189
 190   gtk_widget_class_install_style_property (widget_class,
 191                                            g_param_spec_enum ("shadow-type",
 192                                                               P_("Shadow type"),
 193                                                               P_("Style of bevel around the menubar"),
 194                                                               GTK_TYPE_SHADOW_TYPE,
 195                                                               GTK_SHADOW_OUT,
 196                                                               GTK_PARAM_READABLE));
 197
 198   gtk_widget_class_install_style_property (widget_class,
 199                                            g_param_spec_int ("internal-padding",
 200                                                              P_("Internal padding"),
 201                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 202                                                              0,
 203                                                              G_MAXINT,
 204                                                              DEFAULT_IPADDING,
 205                                                              GTK_PARAM_READABLE));
 206
 207   gtk_settings_install_property (g_param_spec_int ("gtk-menu-bar-popup-delay",
 208                                                    P_("Delay before drop down menus appear"),
 209                                                    P_("Delay before the submenus of a menu bar appear"),
 210                                                    0,
 211                                                    G_MAXINT,
 212                                                    0,
 213                                                    GTK_PARAM_READWRITE));
 214
 215   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 216 }
 217
 218 static void
 219 gtk_menu_bar_init (GtkMenuBar *object)
 220 {
 221 }
 222
 223 GtkWidget*
 224 gtk_menu_bar_new (void)
 225 {
 226   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 227 }
 228
 229 static void
 230 gtk_menu_bar_set_property (GObject      *object,
 231                            guint         prop_id,
 232                            const GValue *value,
 233                            GParamSpec   *pspec)
 234 {
 235   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 236
 237   switch (prop_id)
 238     {
 239     case PROP_PACK_DIRECTION:
 240       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 241       break;
 242     case PROP_CHILD_PACK_DIRECTION:
 243       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 244       break;
 245     default:
 246       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 247       break;
 248     }
 249 }
 250
 251 static void
 252 gtk_menu_bar_get_property (GObject    *object,
 253                            guint       prop_id,
 254                            GValue     *value,
 255                            GParamSpec *pspec)
 256 {
 257   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 258
 259   switch (prop_id)
 260     {
 261     case PROP_PACK_DIRECTION:
 262       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 263       break;
 264     case PROP_CHILD_PACK_DIRECTION:
 265       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 266       break;
 267     default:
 268       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 269       break;
 270     }
 271 }
 272
 273 static void
 274 gtk_menu_bar_size_request (GtkWidget      *widget,
 275                            GtkRequisition *requisition)
 276 {
 277   GtkMenuBar *menu_bar;
 278   GtkMenuBarPrivate *priv;
 279   GtkMenuShell *menu_shell;
 280   GtkWidget *child;
 281   GList *children;
 282   gint nchildren;
 283   GtkRequisition child_requisition;
 284   gint ipadding;
 285   guint border_width;
 286
 287   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 288   g_return_if_fail (requisition != NULL);
 289
 290   requisition->width = 0;
 291   requisition->height = 0;
 292
 293   if (gtk_widget_get_visible (widget))
 294     {
 295       menu_bar = GTK_MENU_BAR (widget);
 296       menu_shell = GTK_MENU_SHELL (widget);
 297       priv = GTK_MENU_BAR_GET_PRIVATE (menu_bar);
 298
 299       nchildren = 0;
 300       children = menu_shell->children;
 301
 302       while (children)
 303         {
 304           child = children->data;
 305           children = children->next;
 306
 307           if (gtk_widget_get_visible (child))
 308             {
 309               gint toggle_size;
 310
 311               GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 312               gtk_widget_size_request (child, &child_requisition);
 313               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 314                                                  &toggle_size);
 315
 316               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 317                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 318                 child_requisition.width += toggle_size;
 319               else
 320                 child_requisition.height += toggle_size;
 321
 322               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 323                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 324                 {
 325                   requisition->width += child_requisition.width;
 326                   requisition->height = MAX (requisition->height, child_requisition.height);
 327                 }
 328               else
 329                 {
 330                   requisition->width = MAX (requisition->width, child_requisition.width);
 331                   requisition->height += child_requisition.height;
 332                 }
 333               nchildren += 1;
 334             }
 335         }
 336
 337       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 338
 339       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 340       requisition->width += (border_width +
 341                              ipadding +
 342                              BORDER_SPACING) * 2;
 343       requisition->height += (border_width +
 344                               ipadding +
 345                               BORDER_SPACING) * 2;
 346
 347       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 348         {
 349           requisition->width += widget->style->xthickness * 2;
 350           requisition->height += widget->style->ythickness * 2;
 351         }
 352     }
 353 }
 354
 355 static void
 356 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 357                             GtkAllocation *allocation)
 358 {
 359   GtkMenuBar *menu_bar;
 360   GtkMenuShell *menu_shell;
 361   GtkMenuBarPrivate *priv;
 362   GtkWidget *child;
 363   GList *children;
 364   GtkAllocation child_allocation;
 365   GtkRequisition child_requisition;
 366   guint offset;
 367   GtkTextDirection direction;
 368   gint ltr_x, ltr_y;
 369   gint ipadding;
 370   guint border_width;
 371
 372   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 373   g_return_if_fail (allocation != NULL);
 374
 375   menu_bar = GTK_MENU_BAR (widget);
 376   menu_shell = GTK_MENU_SHELL (widget);
 377   priv = GTK_MENU_BAR_GET_PRIVATE (menu_bar);
 378
 379   direction = gtk_widget_get_direction (widget);
 380
 381   widget->allocation = *allocation;
 382   if (gtk_widget_get_realized (widget))
 383     gdk_window_move_resize (widget->window,
 384                             allocation->x, allocation->y,
 385                             allocation->width, allocation->height);
 386
 387   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 388
 389   if (menu_shell->children)
 390     {
 391       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 392       child_allocation.x = (border_width +
 393                             ipadding +
 394                             BORDER_SPACING);
 395       child_allocation.y = (border_width +
 396                             BORDER_SPACING);
 397
 398       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 399         {
 400           child_allocation.x += widget->style->xthickness;
 401           child_allocation.y += widget->style->ythickness;
 402         }
 403
 404       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 405           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 406         {
 407           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 408
 409           offset = child_allocation.x;  /* Window edge to menubar start */
 410           ltr_x = child_allocation.x;
 411
 412           children = menu_shell->children;
 413           while (children)
 414             {
 415               gint toggle_size;
 416
 417               child = children->data;
 418               children = children->next;
 419
 420               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 421                                                  &toggle_size);
 422               gtk_widget_get_child_requisition (child, &child_requisition);
 423
 424               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 425                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 426                 child_requisition.width += toggle_size;
 427               else
 428                 child_requisition.height += toggle_size;
 429
 430               /* Support for the right justified help menu */
 431               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 432                   && (GTK_MENU_ITEM(child)->right_justify))
 433                 {
 434                   ltr_x = allocation->width -
 435                     child_requisition.width - offset;
 436                 }
 437               if (gtk_widget_get_visible (child))
 438                 {
 439                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 440                     child_allocation.x = ltr_x;
 441                   else
 442                     child_allocation.x = allocation->width -
 443                       child_requisition.width - ltr_x;
 444
 445                   child_allocation.width = child_requisition.width;
 446
 447                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 448                                                       toggle_size);
 449                   gtk_widget_size_allocate (child, &child_allocation);
 450
 451                   ltr_x += child_allocation.width;
 452                 }
 453             }
 454         }
 455       else
 456         {
 457           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 458
 459           offset = child_allocation.y;  /* Window edge to menubar start */
 460           ltr_y = child_allocation.y;
 461
 462           children = menu_shell->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_child_requisition (child, &child_requisition);
 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_y = allocation->height -
 485                     child_requisition.height - offset;
 486                 }
 487               if (gtk_widget_get_visible (child))
 488                 {
 489                   if ((direction == GTK_TEXT_DIR_LTR) ==
 490                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 491                     child_allocation.y = ltr_y;
 492                   else
 493                     child_allocation.y = allocation->height -
 494                       child_requisition.height - ltr_y;
 495                   child_allocation.height = child_requisition.height;
 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_y += child_allocation.height;
 502                 }
 503             }
 504         }
 505     }
 506 }
 507
 508 static void
 509 gtk_menu_bar_paint (GtkWidget    *widget,
 510                     GdkRectangle *area)
 511 {
 512   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 513
 514   if (gtk_widget_is_drawable (widget))
 515     {
 516       guint border;
 517
 518       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 519
 520       gtk_paint_box (widget->style,
 521                      widget->window,
 522                      gtk_widget_get_state (widget),
 523                      get_shadow_type (GTK_MENU_BAR (widget)),
 524                      area, widget, "menubar",
 525                      border, border,
 526                      widget->allocation.width - border * 2,
 527                      widget->allocation.height - border * 2);
 528     }
 529 }
 530
 531 static gint
 532 gtk_menu_bar_expose (GtkWidget      *widget,
 533                      GdkEventExpose *event)
 534 {
 535   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 536   g_return_val_if_fail (event != NULL, FALSE);
 537
 538   if (gtk_widget_is_drawable (widget))
 539     {
 540       gtk_menu_bar_paint (widget, &event->area);
 541
 542       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 543     }
 544
 545   return FALSE;
 546 }
 547
 548 static GList *
 549 get_menu_bars (GtkWindow *window)
 550 {
 551   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 552 }
 553
 554 static GList *
 555 get_viewable_menu_bars (GtkWindow *window)
 556 {
 557   GList *menu_bars;
 558   GList *viewable_menu_bars = NULL;
 559
 560   for (menu_bars = get_menu_bars (window);
 561        menu_bars;
 562        menu_bars = menu_bars->next)
 563     {
 564       GtkWidget *widget = menu_bars->data;
 565       gboolean viewable = TRUE;
 566
 567       while (widget)
 568         {
 569           if (!gtk_widget_get_mapped (widget))
 570             viewable = FALSE;
 571
 572           widget = widget->parent;
 573         }
 574
 575       if (viewable)
 576         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 577     }
 578
 579   return g_list_reverse (viewable_menu_bars);
 580 }
 581
 582 static void
 583 set_menu_bars (GtkWindow *window,
 584                GList     *menubars)
 585 {
 586   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 587 }
 588
 589 static gboolean
 590 window_key_press_handler (GtkWidget   *widget,
 591                           GdkEventKey *event,
 592                           gpointer     data)
 593 {
 594   gchar *accel = NULL;
 595   gboolean retval = FALSE;
 596
 597   g_object_get (gtk_widget_get_settings (widget),
 598                 "gtk-menu-bar-accel", &accel,
 599                 NULL);
 600
 601   if (accel && *accel)
 602     {
 603       guint keyval = 0;
 604       GdkModifierType mods = 0;
 605
 606       gtk_accelerator_parse (accel, &keyval, &mods);
 607
 608       if (keyval == 0)
 609         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 610
 611       /* FIXME this is wrong, needs to be in the global accel resolution
 612        * thing, to properly consider i18n etc., but that probably requires
 613        * AccelGroup changes etc.
 614        */
 615       if (event->keyval == keyval &&
 616           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 617            (mods & gtk_accelerator_get_default_mod_mask ())))
 618         {
 619           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 620           GList *menubars;
 621
 622           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 623                                                 GTK_DIR_TAB_FORWARD, NULL);
 624           g_list_free (tmp_menubars);
 625
 626           if (menubars)
 627             {
 628               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 629
 630               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 631               _gtk_menu_shell_activate (menu_shell);
 632               gtk_menu_shell_select_first (menu_shell, FALSE);
 633
 634               g_list_free (menubars);
 635
 636               retval = TRUE;
 637             }
 638         }
 639     }
 640
 641   g_free (accel);
 642
 643   return retval;
 644 }
 645
 646 static void
 647 add_to_window (GtkWindow  *window,
 648                GtkMenuBar *menubar)
 649 {
 650   GList *menubars = get_menu_bars (window);
 651
 652   if (!menubars)
 653     {
 654       g_signal_connect (window,
 655                         "key-press-event",
 656                         G_CALLBACK (window_key_press_handler),
 657                         NULL);
 658     }
 659
 660   set_menu_bars (window, g_list_prepend (menubars, menubar));
 661 }
 662
 663 static void
 664 remove_from_window (GtkWindow  *window,
 665                     GtkMenuBar *menubar)
 666 {
 667   GList *menubars = get_menu_bars (window);
 668
 669   menubars = g_list_remove (menubars, menubar);
 670
 671   if (!menubars)
 672     {
 673       g_signal_handlers_disconnect_by_func (window,
 674                                             window_key_press_handler,
 675                                             NULL);
 676     }
 677
 678   set_menu_bars (window, menubars);
 679 }
 680
 681 static void
 682 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 683                                 GtkWidget *old_toplevel)
 684 {
 685   GtkWidget *toplevel;
 686   GtkMenuBar *menubar;
 687
 688   menubar = GTK_MENU_BAR (widget);
 689
 690   toplevel = gtk_widget_get_toplevel (widget);
 691
 692   if (old_toplevel)
 693     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 694
 695   if (gtk_widget_is_toplevel (toplevel))
 696     add_to_window (GTK_WINDOW (toplevel), menubar);
 697 }
 698
 699 /**
 700  * _gtk_menu_bar_cycle_focus:
 701  * @menubar: a #GtkMenuBar
 702  * @dir: direction in which to cycle the focus
 703  *
 704  * Move the focus between menubars in the toplevel.
 705  **/
 706 void
 707 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 708                            GtkDirectionType  dir)
 709 {
 710   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 711   GtkMenuItem *to_activate = NULL;
 712
 713   if (gtk_widget_is_toplevel (toplevel))
 714     {
 715       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 716       GList *menubars;
 717       GList *current;
 718
 719       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 720                                             dir, GTK_WIDGET (menubar));
 721       g_list_free (tmp_menubars);
 722
 723       if (menubars)
 724         {
 725           current = g_list_find (menubars, menubar);
 726
 727           if (current && current->next)
 728             {
 729               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 730               if (new_menushell->children)
 731                 to_activate = new_menushell->children->data;
 732             }
 733         }
 734
 735       g_list_free (menubars);
 736     }
 737
 738   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 739
 740   if (to_activate)
 741     g_signal_emit_by_name (to_activate, "activate_item");
 742 }
 743
 744 static GtkShadowType
 745 get_shadow_type (GtkMenuBar *menubar)
 746 {
 747   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 748
 749   gtk_widget_style_get (GTK_WIDGET (menubar),
 750                         "shadow-type", &shadow_type,
 751                         NULL);
 752
 753   return shadow_type;
 754 }
 755
 756 static gint
 757 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 758 {
 759   gint popup_delay;
 760
 761   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 762                 "gtk-menu-bar-popup-delay", &popup_delay,
 763                 NULL);
 764
 765   return popup_delay;
 766 }
 767
 768 static void
 769 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 770                            GtkMenuDirectionType  direction)
 771 {
 772   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 773   GtkTextDirection text_dir;
 774   GtkPackDirection pack_dir;
 775
 776   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 777   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 778
 779   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 780      {
 781       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 782         {
 783           switch (direction)
 784             {
 785             case GTK_MENU_DIR_PREV:
 786               direction = GTK_MENU_DIR_NEXT;
 787               break;
 788             case GTK_MENU_DIR_NEXT:
 789               direction = GTK_MENU_DIR_PREV;
 790               break;
 791             default: ;
 792             }
 793         }
 794     }
 795   else
 796     {
 797       switch (direction)
 798         {
 799         case GTK_MENU_DIR_PARENT:
 800           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 801             direction = GTK_MENU_DIR_PREV;
 802           else
 803             direction = GTK_MENU_DIR_NEXT;
 804           break;
 805         case GTK_MENU_DIR_CHILD:
 806           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 807             direction = GTK_MENU_DIR_NEXT;
 808           else
 809             direction = GTK_MENU_DIR_PREV;
 810           break;
 811         case GTK_MENU_DIR_PREV:
 812           if (text_dir == GTK_TEXT_DIR_RTL)
 813             direction = GTK_MENU_DIR_CHILD;
 814           else
 815             direction = GTK_MENU_DIR_PARENT;
 816           break;
 817         case GTK_MENU_DIR_NEXT:
 818           if (text_dir == GTK_TEXT_DIR_RTL)
 819             direction = GTK_MENU_DIR_PARENT;
 820           else
 821             direction = GTK_MENU_DIR_CHILD;
 822           break;
 823         default: ;
 824         }
 825     }
 826
 827   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 828 }
 829
 830 /**
 831  * gtk_menu_bar_get_pack_direction:
 832  * @menubar: a #GtkMenuBar
 833  *
 834  * Retrieves the current pack direction of the menubar.
 835  * See gtk_menu_bar_set_pack_direction().
 836  *
 837  * Return value: the pack direction
 838  *
 839  * Since: 2.8
 840  */
 841 GtkPackDirection
 842 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 843 {
 844   GtkMenuBarPrivate *priv;
 845
 846   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 847                         GTK_PACK_DIRECTION_LTR);
 848
 849   priv = GTK_MENU_BAR_GET_PRIVATE (menubar);
 850
 851   return priv->pack_direction;
 852 }
 853
 854 /**
 855  * gtk_menu_bar_set_pack_direction:
 856  * @menubar: a #GtkMenuBar
 857  * @pack_dir: a new #GtkPackDirection
 858  *
 859  * Sets how items should be packed inside a menubar.
 860  *
 861  * Since: 2.8
 862  */
 863 void
 864 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 865                                  GtkPackDirection  pack_dir)
 866 {
 867   GtkMenuBarPrivate *priv;
 868   GList *l;
 869
 870   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 871
 872   priv = GTK_MENU_BAR_GET_PRIVATE (menubar);
 873
 874   if (priv->pack_direction != pack_dir)
 875     {
 876       priv->pack_direction = pack_dir;
 877
 878       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 879
 880       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 881         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 882
 883       g_object_notify (G_OBJECT (menubar), "pack-direction");
 884     }
 885 }
 886
 887 /**
 888  * gtk_menu_bar_get_child_pack_direction:
 889  * @menubar: a #GtkMenuBar
 890  *
 891  * Retrieves the current child pack direction of the menubar.
 892  * See gtk_menu_bar_set_child_pack_direction().
 893  *
 894  * Return value: the child pack direction
 895  *
 896  * Since: 2.8
 897  */
 898 GtkPackDirection
 899 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 900 {
 901   GtkMenuBarPrivate *priv;
 902
 903   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 904                         GTK_PACK_DIRECTION_LTR);
 905
 906   priv = GTK_MENU_BAR_GET_PRIVATE (menubar);
 907
 908   return priv->child_pack_direction;
 909 }
 910
 911 /**
 912  * gtk_menu_bar_set_child_pack_direction:
 913  * @menubar: a #GtkMenuBar
 914  * @child_pack_dir: a new #GtkPackDirection
 915  *
 916  * Sets how widgets should be packed inside the children of a menubar.
 917  *
 918  * Since: 2.8
 919  */
 920 void
 921 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 922                                        GtkPackDirection  child_pack_dir)
 923 {
 924   GtkMenuBarPrivate *priv;
 925   GList *l;
 926
 927   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 928
 929   priv = GTK_MENU_BAR_GET_PRIVATE (menubar);
 930
 931   if (priv->child_pack_direction != child_pack_dir)
 932     {
 933       priv->child_pack_direction = child_pack_dir;
 934
 935       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 936
 937       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 938         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 939
 940       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 941     }
 942 }