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_size_allocate     (GtkWidget       *widget,
  72                                             GtkAllocation   *allocation);
  73 static void gtk_menu_bar_paint             (GtkWidget       *widget,
  74                                             GdkRectangle    *area);
  75 static gint gtk_menu_bar_expose            (GtkWidget       *widget,
  76                                             GdkEventExpose  *event);
  77 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  78                                             GtkWidget       *old_toplevel);
  79 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  80 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  81                                             GtkMenuDirectionType direction);
  82
  83 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  84
  85 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  86
  87 static void
  88 gtk_menu_bar_class_init (GtkMenuBarClass *class)
  89 {
  90   GObjectClass *gobject_class;
  91   GtkWidgetClass *widget_class;
  92   GtkMenuShellClass *menu_shell_class;
  93
  94   GtkBindingSet *binding_set;
  95
  96   gobject_class = (GObjectClass*) class;
  97   widget_class = (GtkWidgetClass*) class;
  98   menu_shell_class = (GtkMenuShellClass*) class;
  99
 100   gobject_class->get_property = gtk_menu_bar_get_property;
 101   gobject_class->set_property = gtk_menu_bar_set_property;
 102
 103   widget_class->size_request = gtk_menu_bar_size_request;
 104   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 105   widget_class->expose_event = gtk_menu_bar_expose;
 106   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 107
 108   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 109   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 110   menu_shell_class->move_current = gtk_menu_bar_move_current;
 111
 112   binding_set = gtk_binding_set_by_class (class);
 113   gtk_binding_entry_add_signal (binding_set,
 114                                 GDK_KEY_Left, 0,
 115                                 "move-current", 1,
 116                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 117                                 GTK_MENU_DIR_PREV);
 118   gtk_binding_entry_add_signal (binding_set,
 119                                 GDK_KEY_KP_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_Right, 0,
 125                                 "move-current", 1,
 126                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 127                                 GTK_MENU_DIR_NEXT);
 128   gtk_binding_entry_add_signal (binding_set,
 129                                 GDK_KEY_KP_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_Up, 0,
 135                                 "move-current", 1,
 136                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 137                                 GTK_MENU_DIR_PARENT);
 138   gtk_binding_entry_add_signal (binding_set,
 139                                 GDK_KEY_KP_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_Down, 0,
 145                                 "move-current", 1,
 146                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 147                                 GTK_MENU_DIR_CHILD);
 148   gtk_binding_entry_add_signal (binding_set,
 149                                 GDK_KEY_KP_Down, 0,
 150                                 "move-current", 1,
 151                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 152                                 GTK_MENU_DIR_CHILD);
 153
 154   /**
 155    * GtkMenuBar:pack-direction:
 156    *
 157    * The pack direction of the menubar. It determines how
 158    * menuitems are arranged in the menubar.
 159    *
 160    * Since: 2.8
 161    */
 162   g_object_class_install_property (gobject_class,
 163                                    PROP_PACK_DIRECTION,
 164                                    g_param_spec_enum ("pack-direction",
 165                                                       P_("Pack direction"),
 166                                                       P_("The pack direction of the menubar"),
 167                                                       GTK_TYPE_PACK_DIRECTION,
 168                                                       GTK_PACK_DIRECTION_LTR,
 169                                                       GTK_PARAM_READWRITE));
 170
 171   /**
 172    * GtkMenuBar:child-pack-direction:
 173    *
 174    * The child pack direction of the menubar. It determines how
 175    * the widgets contained in child menuitems are arranged.
 176    *
 177    * Since: 2.8
 178    */
 179   g_object_class_install_property (gobject_class,
 180                                    PROP_CHILD_PACK_DIRECTION,
 181                                    g_param_spec_enum ("child-pack-direction",
 182                                                       P_("Child Pack direction"),
 183                                                       P_("The child pack direction of the menubar"),
 184                                                       GTK_TYPE_PACK_DIRECTION,
 185                                                       GTK_PACK_DIRECTION_LTR,
 186                                                       GTK_PARAM_READWRITE));
 187
 188
 189   gtk_widget_class_install_style_property (widget_class,
 190                                            g_param_spec_enum ("shadow-type",
 191                                                               P_("Shadow type"),
 192                                                               P_("Style of bevel around the menubar"),
 193                                                               GTK_TYPE_SHADOW_TYPE,
 194                                                               GTK_SHADOW_OUT,
 195                                                               GTK_PARAM_READABLE));
 196
 197   gtk_widget_class_install_style_property (widget_class,
 198                                            g_param_spec_int ("internal-padding",
 199                                                              P_("Internal padding"),
 200                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 201                                                              0,
 202                                                              G_MAXINT,
 203                                                              DEFAULT_IPADDING,
 204                                                              GTK_PARAM_READABLE));
 205
 206   gtk_settings_install_property (g_param_spec_int ("gtk-menu-bar-popup-delay",
 207                                                    P_("Delay before drop down menus appear"),
 208                                                    P_("Delay before the submenus of a menu bar appear"),
 209                                                    0,
 210                                                    G_MAXINT,
 211                                                    0,
 212                                                    GTK_PARAM_READWRITE));
 213
 214   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 215 }
 216
 217 static void
 218 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 219 {
 220   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 221                                                 GTK_TYPE_MENU_BAR,
 222                                                 GtkMenuBarPrivate);
 223 }
 224
 225 GtkWidget*
 226 gtk_menu_bar_new (void)
 227 {
 228   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 229 }
 230
 231 static void
 232 gtk_menu_bar_set_property (GObject      *object,
 233                            guint         prop_id,
 234                            const GValue *value,
 235                            GParamSpec   *pspec)
 236 {
 237   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 238
 239   switch (prop_id)
 240     {
 241     case PROP_PACK_DIRECTION:
 242       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 243       break;
 244     case PROP_CHILD_PACK_DIRECTION:
 245       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 246       break;
 247     default:
 248       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 249       break;
 250     }
 251 }
 252
 253 static void
 254 gtk_menu_bar_get_property (GObject    *object,
 255                            guint       prop_id,
 256                            GValue     *value,
 257                            GParamSpec *pspec)
 258 {
 259   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 260
 261   switch (prop_id)
 262     {
 263     case PROP_PACK_DIRECTION:
 264       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 265       break;
 266     case PROP_CHILD_PACK_DIRECTION:
 267       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 268       break;
 269     default:
 270       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 271       break;
 272     }
 273 }
 274
 275 static void
 276 gtk_menu_bar_size_request (GtkWidget      *widget,
 277                            GtkRequisition *requisition)
 278 {
 279   GtkMenuBar *menu_bar;
 280   GtkMenuBarPrivate *priv;
 281   GtkMenuShell *menu_shell;
 282   GtkWidget *child;
 283   GList *children;
 284   gint nchildren;
 285   GtkRequisition child_requisition;
 286   gint ipadding;
 287   guint border_width;
 288
 289   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 290   g_return_if_fail (requisition != NULL);
 291
 292   requisition->width = 0;
 293   requisition->height = 0;
 294
 295   if (gtk_widget_get_visible (widget))
 296     {
 297       menu_bar = GTK_MENU_BAR (widget);
 298       menu_shell = GTK_MENU_SHELL (widget);
 299       priv = menu_bar->priv;
 300
 301       nchildren = 0;
 302       children = menu_shell->children;
 303
 304       while (children)
 305         {
 306           child = children->data;
 307           children = children->next;
 308
 309           if (gtk_widget_get_visible (child))
 310             {
 311               gint toggle_size;
 312
 313               GTK_MENU_ITEM (child)->show_submenu_indicator = FALSE;
 314               gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 315                                          &child_requisition, NULL);
 316               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 317                                                  &toggle_size);
 318
 319               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 320                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 321                 child_requisition.width += toggle_size;
 322               else
 323                 child_requisition.height += toggle_size;
 324
 325               if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 326                   priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 327                 {
 328                   requisition->width += child_requisition.width;
 329                   requisition->height = MAX (requisition->height, child_requisition.height);
 330                 }
 331               else
 332                 {
 333                   requisition->width = MAX (requisition->width, child_requisition.width);
 334                   requisition->height += child_requisition.height;
 335                 }
 336               nchildren += 1;
 337             }
 338         }
 339
 340       gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 341
 342       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 343       requisition->width += (border_width +
 344                              ipadding +
 345                              BORDER_SPACING) * 2;
 346       requisition->height += (border_width +
 347                               ipadding +
 348                               BORDER_SPACING) * 2;
 349
 350       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 351         {
 352           GtkStyle *style;
 353
 354           style = gtk_widget_get_style (widget);
 355           requisition->width += style->xthickness * 2;
 356           requisition->height += style->ythickness * 2;
 357         }
 358     }
 359 }
 360
 361 static void
 362 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 363                             GtkAllocation *allocation)
 364 {
 365   GtkMenuBar *menu_bar;
 366   GtkMenuShell *menu_shell;
 367   GtkMenuBarPrivate *priv;
 368   GtkWidget *child;
 369   GList *children;
 370   GtkAllocation child_allocation;
 371   GtkRequisition child_requisition;
 372   guint offset;
 373   GtkTextDirection direction;
 374   gint ltr_x, ltr_y;
 375   gint ipadding;
 376   guint border_width;
 377
 378   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 379   g_return_if_fail (allocation != NULL);
 380
 381   menu_bar = GTK_MENU_BAR (widget);
 382   menu_shell = GTK_MENU_SHELL (widget);
 383   priv = menu_bar->priv;
 384
 385   direction = gtk_widget_get_direction (widget);
 386
 387   gtk_widget_set_allocation (widget, allocation);
 388
 389   if (gtk_widget_get_realized (widget))
 390     gdk_window_move_resize (gtk_widget_get_window (widget),
 391                             allocation->x, allocation->y,
 392                             allocation->width, allocation->height);
 393
 394   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 395
 396   if (menu_shell->children)
 397     {
 398       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 399       child_allocation.x = (border_width +
 400                             ipadding +
 401                             BORDER_SPACING);
 402       child_allocation.y = (border_width +
 403                             BORDER_SPACING);
 404
 405       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 406         {
 407           GtkStyle *style;
 408
 409           style = gtk_widget_get_style (widget);
 410           child_allocation.x += style->xthickness;
 411           child_allocation.y += style->ythickness;
 412         }
 413
 414       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 415           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 416         {
 417           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 418
 419           offset = child_allocation.x;  /* Window edge to menubar start */
 420           ltr_x = child_allocation.x;
 421
 422           children = menu_shell->children;
 423           while (children)
 424             {
 425               gint toggle_size;
 426
 427               child = children->data;
 428               children = children->next;
 429
 430               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 431                                                  &toggle_size);
 432               gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 433                                          &child_requisition, NULL);
 434
 435               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 436                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 437                 child_requisition.width += toggle_size;
 438               else
 439                 child_requisition.height += toggle_size;
 440
 441               /* Support for the right justified help menu */
 442               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 443                   && (GTK_MENU_ITEM(child)->right_justify))
 444                 {
 445                   ltr_x = allocation->width -
 446                     child_requisition.width - offset;
 447                 }
 448               if (gtk_widget_get_visible (child))
 449                 {
 450                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 451                     child_allocation.x = ltr_x;
 452                   else
 453                     child_allocation.x = allocation->width -
 454                       child_requisition.width - ltr_x;
 455
 456                   child_allocation.width = child_requisition.width;
 457
 458                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 459                                                       toggle_size);
 460                   gtk_widget_size_allocate (child, &child_allocation);
 461
 462                   ltr_x += child_allocation.width;
 463                 }
 464             }
 465         }
 466       else
 467         {
 468           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 469
 470           offset = child_allocation.y;  /* Window edge to menubar start */
 471           ltr_y = child_allocation.y;
 472
 473           children = menu_shell->children;
 474           while (children)
 475             {
 476               gint toggle_size;
 477
 478               child = children->data;
 479               children = children->next;
 480
 481               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 482                                                  &toggle_size);
 483               gtk_size_request_get_size (GTK_SIZE_REQUEST (child),
 484                                          &child_requisition, NULL);
 485
 486               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 487                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 488                 child_requisition.width += toggle_size;
 489               else
 490                 child_requisition.height += toggle_size;
 491
 492               /* Support for the right justified help menu */
 493               if ((children == NULL) && (GTK_IS_MENU_ITEM(child))
 494                   && (GTK_MENU_ITEM(child)->right_justify))
 495                 {
 496                   ltr_y = allocation->height -
 497                     child_requisition.height - offset;
 498                 }
 499               if (gtk_widget_get_visible (child))
 500                 {
 501                   if ((direction == GTK_TEXT_DIR_LTR) ==
 502                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 503                     child_allocation.y = ltr_y;
 504                   else
 505                     child_allocation.y = allocation->height -
 506                       child_requisition.height - ltr_y;
 507                   child_allocation.height = child_requisition.height;
 508
 509                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 510                                                       toggle_size);
 511                   gtk_widget_size_allocate (child, &child_allocation);
 512
 513                   ltr_y += child_allocation.height;
 514                 }
 515             }
 516         }
 517     }
 518 }
 519
 520 static void
 521 gtk_menu_bar_paint (GtkWidget    *widget,
 522                     GdkRectangle *area)
 523 {
 524   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 525
 526   if (gtk_widget_is_drawable (widget))
 527     {
 528       GtkAllocation allocation;
 529       guint border;
 530
 531       border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 532       gtk_widget_get_allocation (widget, &allocation);
 533
 534       gtk_paint_box (gtk_widget_get_style (widget),
 535                      gtk_widget_get_window (widget),
 536                      gtk_widget_get_state (widget),
 537                      get_shadow_type (GTK_MENU_BAR (widget)),
 538                      area, widget, "menubar",
 539                      border, border,
 540                      allocation.width - border * 2,
 541                      allocation.height - border * 2);
 542     }
 543 }
 544
 545 static gint
 546 gtk_menu_bar_expose (GtkWidget      *widget,
 547                      GdkEventExpose *event)
 548 {
 549   g_return_val_if_fail (GTK_IS_MENU_BAR (widget), FALSE);
 550   g_return_val_if_fail (event != NULL, FALSE);
 551
 552   if (gtk_widget_is_drawable (widget))
 553     {
 554       gtk_menu_bar_paint (widget, &event->area);
 555
 556       GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->expose_event (widget, event);
 557     }
 558
 559   return FALSE;
 560 }
 561
 562 static GList *
 563 get_menu_bars (GtkWindow *window)
 564 {
 565   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 566 }
 567
 568 static GList *
 569 get_viewable_menu_bars (GtkWindow *window)
 570 {
 571   GList *menu_bars;
 572   GList *viewable_menu_bars = NULL;
 573
 574   for (menu_bars = get_menu_bars (window);
 575        menu_bars;
 576        menu_bars = menu_bars->next)
 577     {
 578       GtkWidget *widget = menu_bars->data;
 579       gboolean viewable = TRUE;
 580
 581       while (widget)
 582         {
 583           if (!gtk_widget_get_mapped (widget))
 584             viewable = FALSE;
 585
 586           widget = gtk_widget_get_parent (widget);
 587         }
 588
 589       if (viewable)
 590         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 591     }
 592
 593   return g_list_reverse (viewable_menu_bars);
 594 }
 595
 596 static void
 597 set_menu_bars (GtkWindow *window,
 598                GList     *menubars)
 599 {
 600   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 601 }
 602
 603 static gboolean
 604 window_key_press_handler (GtkWidget   *widget,
 605                           GdkEventKey *event,
 606                           gpointer     data)
 607 {
 608   gchar *accel = NULL;
 609   gboolean retval = FALSE;
 610
 611   g_object_get (gtk_widget_get_settings (widget),
 612                 "gtk-menu-bar-accel", &accel,
 613                 NULL);
 614
 615   if (accel && *accel)
 616     {
 617       guint keyval = 0;
 618       GdkModifierType mods = 0;
 619
 620       gtk_accelerator_parse (accel, &keyval, &mods);
 621
 622       if (keyval == 0)
 623         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 624
 625       /* FIXME this is wrong, needs to be in the global accel resolution
 626        * thing, to properly consider i18n etc., but that probably requires
 627        * AccelGroup changes etc.
 628        */
 629       if (event->keyval == keyval &&
 630           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 631            (mods & gtk_accelerator_get_default_mod_mask ())))
 632         {
 633           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 634           GList *menubars;
 635
 636           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 637                                                 GTK_DIR_TAB_FORWARD, NULL);
 638           g_list_free (tmp_menubars);
 639
 640           if (menubars)
 641             {
 642               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 643
 644               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 645               _gtk_menu_shell_activate (menu_shell);
 646               gtk_menu_shell_select_first (menu_shell, FALSE);
 647
 648               g_list_free (menubars);
 649
 650               retval = TRUE;
 651             }
 652         }
 653     }
 654
 655   g_free (accel);
 656
 657   return retval;
 658 }
 659
 660 static void
 661 add_to_window (GtkWindow  *window,
 662                GtkMenuBar *menubar)
 663 {
 664   GList *menubars = get_menu_bars (window);
 665
 666   if (!menubars)
 667     {
 668       g_signal_connect (window,
 669                         "key-press-event",
 670                         G_CALLBACK (window_key_press_handler),
 671                         NULL);
 672     }
 673
 674   set_menu_bars (window, g_list_prepend (menubars, menubar));
 675 }
 676
 677 static void
 678 remove_from_window (GtkWindow  *window,
 679                     GtkMenuBar *menubar)
 680 {
 681   GList *menubars = get_menu_bars (window);
 682
 683   menubars = g_list_remove (menubars, menubar);
 684
 685   if (!menubars)
 686     {
 687       g_signal_handlers_disconnect_by_func (window,
 688                                             window_key_press_handler,
 689                                             NULL);
 690     }
 691
 692   set_menu_bars (window, menubars);
 693 }
 694
 695 static void
 696 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 697                                 GtkWidget *old_toplevel)
 698 {
 699   GtkWidget *toplevel;
 700   GtkMenuBar *menubar;
 701
 702   menubar = GTK_MENU_BAR (widget);
 703
 704   toplevel = gtk_widget_get_toplevel (widget);
 705
 706   if (old_toplevel)
 707     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 708
 709   if (gtk_widget_is_toplevel (toplevel))
 710     add_to_window (GTK_WINDOW (toplevel), menubar);
 711 }
 712
 713 /**
 714  * _gtk_menu_bar_cycle_focus:
 715  * @menubar: a #GtkMenuBar
 716  * @dir: direction in which to cycle the focus
 717  *
 718  * Move the focus between menubars in the toplevel.
 719  **/
 720 void
 721 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 722                            GtkDirectionType  dir)
 723 {
 724   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 725   GtkMenuItem *to_activate = NULL;
 726
 727   if (gtk_widget_is_toplevel (toplevel))
 728     {
 729       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 730       GList *menubars;
 731       GList *current;
 732
 733       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 734                                             dir, GTK_WIDGET (menubar));
 735       g_list_free (tmp_menubars);
 736
 737       if (menubars)
 738         {
 739           current = g_list_find (menubars, menubar);
 740
 741           if (current && current->next)
 742             {
 743               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 744               if (new_menushell->children)
 745                 to_activate = new_menushell->children->data;
 746             }
 747         }
 748
 749       g_list_free (menubars);
 750     }
 751
 752   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 753
 754   if (to_activate)
 755     g_signal_emit_by_name (to_activate, "activate_item");
 756 }
 757
 758 static GtkShadowType
 759 get_shadow_type (GtkMenuBar *menubar)
 760 {
 761   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 762
 763   gtk_widget_style_get (GTK_WIDGET (menubar),
 764                         "shadow-type", &shadow_type,
 765                         NULL);
 766
 767   return shadow_type;
 768 }
 769
 770 static gint
 771 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 772 {
 773   gint popup_delay;
 774
 775   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 776                 "gtk-menu-bar-popup-delay", &popup_delay,
 777                 NULL);
 778
 779   return popup_delay;
 780 }
 781
 782 static void
 783 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 784                            GtkMenuDirectionType  direction)
 785 {
 786   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 787   GtkTextDirection text_dir;
 788   GtkPackDirection pack_dir;
 789
 790   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 791   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 792
 793   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 794      {
 795       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 796         {
 797           switch (direction)
 798             {
 799             case GTK_MENU_DIR_PREV:
 800               direction = GTK_MENU_DIR_NEXT;
 801               break;
 802             case GTK_MENU_DIR_NEXT:
 803               direction = GTK_MENU_DIR_PREV;
 804               break;
 805             default: ;
 806             }
 807         }
 808     }
 809   else
 810     {
 811       switch (direction)
 812         {
 813         case GTK_MENU_DIR_PARENT:
 814           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 815             direction = GTK_MENU_DIR_PREV;
 816           else
 817             direction = GTK_MENU_DIR_NEXT;
 818           break;
 819         case GTK_MENU_DIR_CHILD:
 820           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 821             direction = GTK_MENU_DIR_NEXT;
 822           else
 823             direction = GTK_MENU_DIR_PREV;
 824           break;
 825         case GTK_MENU_DIR_PREV:
 826           if (text_dir == GTK_TEXT_DIR_RTL)
 827             direction = GTK_MENU_DIR_CHILD;
 828           else
 829             direction = GTK_MENU_DIR_PARENT;
 830           break;
 831         case GTK_MENU_DIR_NEXT:
 832           if (text_dir == GTK_TEXT_DIR_RTL)
 833             direction = GTK_MENU_DIR_PARENT;
 834           else
 835             direction = GTK_MENU_DIR_CHILD;
 836           break;
 837         default: ;
 838         }
 839     }
 840
 841   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 842 }
 843
 844 /**
 845  * gtk_menu_bar_get_pack_direction:
 846  * @menubar: a #GtkMenuBar
 847  *
 848  * Retrieves the current pack direction of the menubar.
 849  * See gtk_menu_bar_set_pack_direction().
 850  *
 851  * Return value: the pack direction
 852  *
 853  * Since: 2.8
 854  */
 855 GtkPackDirection
 856 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 857 {
 858   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 859                         GTK_PACK_DIRECTION_LTR);
 860
 861   return menubar->priv->pack_direction;
 862 }
 863
 864 /**
 865  * gtk_menu_bar_set_pack_direction:
 866  * @menubar: a #GtkMenuBar
 867  * @pack_dir: a new #GtkPackDirection
 868  *
 869  * Sets how items should be packed inside a menubar.
 870  *
 871  * Since: 2.8
 872  */
 873 void
 874 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 875                                  GtkPackDirection  pack_dir)
 876 {
 877   GtkMenuBarPrivate *priv;
 878   GList *l;
 879
 880   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 881
 882   priv = menubar->priv;
 883
 884   if (priv->pack_direction != pack_dir)
 885     {
 886       priv->pack_direction = pack_dir;
 887
 888       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 889
 890       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 891         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 892
 893       g_object_notify (G_OBJECT (menubar), "pack-direction");
 894     }
 895 }
 896
 897 /**
 898  * gtk_menu_bar_get_child_pack_direction:
 899  * @menubar: a #GtkMenuBar
 900  *
 901  * Retrieves the current child pack direction of the menubar.
 902  * See gtk_menu_bar_set_child_pack_direction().
 903  *
 904  * Return value: the child pack direction
 905  *
 906  * Since: 2.8
 907  */
 908 GtkPackDirection
 909 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 910 {
 911   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 912                         GTK_PACK_DIRECTION_LTR);
 913
 914   return menubar->priv->child_pack_direction;
 915 }
 916
 917 /**
 918  * gtk_menu_bar_set_child_pack_direction:
 919  * @menubar: a #GtkMenuBar
 920  * @child_pack_dir: a new #GtkPackDirection
 921  *
 922  * Sets how widgets should be packed inside the children of a menubar.
 923  *
 924  * Since: 2.8
 925  */
 926 void
 927 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 928                                        GtkPackDirection  child_pack_dir)
 929 {
 930   GtkMenuBarPrivate *priv;
 931   GList *l;
 932
 933   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 934
 935   priv = menubar->priv;
 936
 937   if (priv->child_pack_direction != child_pack_dir)
 938     {
 939       priv->child_pack_direction = child_pack_dir;
 940
 941       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 942
 943       for (l = GTK_MENU_SHELL (menubar)->children; l; l = l->next)
 944         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 945
 946       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 947     }
 948 }