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 /**
  28  * SECTION:gtkmenubar
  29  * @Title: GtkMenuBar
  30  * @Short_description: A subclass of GtkMenuShell which holds GtkMenuItem widgets
  31  * @See_also: #GtkMenuShell, #GtkMenu, #GtkMenuItem
  32  *
  33  * The #GtkMenuBar is a subclass of #GtkMenuShell which contains one or
  34  * more #GtkMenuItems. The result is a standard menu bar which can hold
  35  * many menu items.
  36  */
  37
  38 #include "config.h"
  39
  40 #include "gtkmenubar.h"
  41
  42 #include "gtkbindings.h"
  43 #include "gtkmain.h"
  44 #include "gtkmarshalers.h"
  45 #include "gtkmenuitemprivate.h"
  46 #include "gtkmenuprivate.h"
  47 #include "gtkmenushellprivate.h"
  48 #include "gtksettings.h"
  49 #include "gtksizerequest.h"
  50 #include "gtkwindow.h"
  51 #include "gtkintl.h"
  52 #include "gtkprivate.h"
  53 #include "gtktypebuiltins.h"
  54
  55 #define BORDER_SPACING  0
  56 #define DEFAULT_IPADDING 1
  57
  58 /* Properties */
  59 enum {
  60   PROP_0,
  61   PROP_PACK_DIRECTION,
  62   PROP_CHILD_PACK_DIRECTION
  63 };
  64
  65 struct _GtkMenuBarPrivate
  66 {
  67   GtkPackDirection pack_direction;
  68   GtkPackDirection child_pack_direction;
  69 };
  70
  71
  72 static void gtk_menu_bar_set_property      (GObject             *object,
  73                                             guint                prop_id,
  74                                             const GValue        *value,
  75                                             GParamSpec          *pspec);
  76 static void gtk_menu_bar_get_property      (GObject             *object,
  77                                             guint                prop_id,
  78                                             GValue              *value,
  79                                             GParamSpec          *pspec);
  80 static void gtk_menu_bar_get_preferred_width (GtkWidget     *widget,
  81                                               gint          *minimum,
  82                                               gint          *natural);
  83 static void gtk_menu_bar_get_preferred_height (GtkWidget    *widget,
  84                                                gint         *minimum,
  85                                                gint         *natural);
  86 static void gtk_menu_bar_size_allocate     (GtkWidget       *widget,
  87                                             GtkAllocation   *allocation);
  88 static gint gtk_menu_bar_draw              (GtkWidget       *widget,
  89                                             cairo_t         *cr);
  90 static void gtk_menu_bar_hierarchy_changed (GtkWidget       *widget,
  91                                             GtkWidget       *old_toplevel);
  92 static gint gtk_menu_bar_get_popup_delay   (GtkMenuShell    *menu_shell);
  93 static void gtk_menu_bar_move_current      (GtkMenuShell     *menu_shell,
  94                                             GtkMenuDirectionType direction);
  95
  96 static GtkShadowType get_shadow_type   (GtkMenuBar      *menubar);
  97
  98 G_DEFINE_TYPE (GtkMenuBar, gtk_menu_bar, GTK_TYPE_MENU_SHELL)
  99
 100 static void
 101 gtk_menu_bar_class_init (GtkMenuBarClass *class)
 102 {
 103   GObjectClass *gobject_class;
 104   GtkWidgetClass *widget_class;
 105   GtkMenuShellClass *menu_shell_class;
 106
 107   GtkBindingSet *binding_set;
 108
 109   gobject_class = (GObjectClass*) class;
 110   widget_class = (GtkWidgetClass*) class;
 111   menu_shell_class = (GtkMenuShellClass*) class;
 112
 113   gobject_class->get_property = gtk_menu_bar_get_property;
 114   gobject_class->set_property = gtk_menu_bar_set_property;
 115
 116   widget_class->get_preferred_width = gtk_menu_bar_get_preferred_width;
 117   widget_class->get_preferred_height = gtk_menu_bar_get_preferred_height;
 118   widget_class->size_allocate = gtk_menu_bar_size_allocate;
 119   widget_class->draw = gtk_menu_bar_draw;
 120   widget_class->hierarchy_changed = gtk_menu_bar_hierarchy_changed;
 121
 122   menu_shell_class->submenu_placement = GTK_TOP_BOTTOM;
 123   menu_shell_class->get_popup_delay = gtk_menu_bar_get_popup_delay;
 124   menu_shell_class->move_current = gtk_menu_bar_move_current;
 125
 126   binding_set = gtk_binding_set_by_class (class);
 127   gtk_binding_entry_add_signal (binding_set,
 128                                 GDK_KEY_Left, 0,
 129                                 "move-current", 1,
 130                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 131                                 GTK_MENU_DIR_PREV);
 132   gtk_binding_entry_add_signal (binding_set,
 133                                 GDK_KEY_KP_Left, 0,
 134                                 "move-current", 1,
 135                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 136                                 GTK_MENU_DIR_PREV);
 137   gtk_binding_entry_add_signal (binding_set,
 138                                 GDK_KEY_Right, 0,
 139                                 "move-current", 1,
 140                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 141                                 GTK_MENU_DIR_NEXT);
 142   gtk_binding_entry_add_signal (binding_set,
 143                                 GDK_KEY_KP_Right, 0,
 144                                 "move-current", 1,
 145                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 146                                 GTK_MENU_DIR_NEXT);
 147   gtk_binding_entry_add_signal (binding_set,
 148                                 GDK_KEY_Up, 0,
 149                                 "move-current", 1,
 150                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 151                                 GTK_MENU_DIR_PARENT);
 152   gtk_binding_entry_add_signal (binding_set,
 153                                 GDK_KEY_KP_Up, 0,
 154                                 "move-current", 1,
 155                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 156                                 GTK_MENU_DIR_PARENT);
 157   gtk_binding_entry_add_signal (binding_set,
 158                                 GDK_KEY_Down, 0,
 159                                 "move-current", 1,
 160                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 161                                 GTK_MENU_DIR_CHILD);
 162   gtk_binding_entry_add_signal (binding_set,
 163                                 GDK_KEY_KP_Down, 0,
 164                                 "move-current", 1,
 165                                 GTK_TYPE_MENU_DIRECTION_TYPE,
 166                                 GTK_MENU_DIR_CHILD);
 167
 168   /**
 169    * GtkMenuBar:pack-direction:
 170    *
 171    * The pack direction of the menubar. It determines how
 172    * menuitems are arranged in the menubar.
 173    *
 174    * Since: 2.8
 175    */
 176   g_object_class_install_property (gobject_class,
 177                                    PROP_PACK_DIRECTION,
 178                                    g_param_spec_enum ("pack-direction",
 179                                                       P_("Pack direction"),
 180                                                       P_("The pack direction of the menubar"),
 181                                                       GTK_TYPE_PACK_DIRECTION,
 182                                                       GTK_PACK_DIRECTION_LTR,
 183                                                       GTK_PARAM_READWRITE));
 184
 185   /**
 186    * GtkMenuBar:child-pack-direction:
 187    *
 188    * The child pack direction of the menubar. It determines how
 189    * the widgets contained in child menuitems are arranged.
 190    *
 191    * Since: 2.8
 192    */
 193   g_object_class_install_property (gobject_class,
 194                                    PROP_CHILD_PACK_DIRECTION,
 195                                    g_param_spec_enum ("child-pack-direction",
 196                                                       P_("Child Pack direction"),
 197                                                       P_("The child pack direction of the menubar"),
 198                                                       GTK_TYPE_PACK_DIRECTION,
 199                                                       GTK_PACK_DIRECTION_LTR,
 200                                                       GTK_PARAM_READWRITE));
 201
 202
 203   gtk_widget_class_install_style_property (widget_class,
 204                                            g_param_spec_enum ("shadow-type",
 205                                                               P_("Shadow type"),
 206                                                               P_("Style of bevel around the menubar"),
 207                                                               GTK_TYPE_SHADOW_TYPE,
 208                                                               GTK_SHADOW_OUT,
 209                                                               GTK_PARAM_READABLE));
 210
 211   gtk_widget_class_install_style_property (widget_class,
 212                                            g_param_spec_int ("internal-padding",
 213                                                              P_("Internal padding"),
 214                                                              P_("Amount of border space between the menubar shadow and the menu items"),
 215                                                              0,
 216                                                              G_MAXINT,
 217                                                              DEFAULT_IPADDING,
 218                                                              GTK_PARAM_READABLE));
 219
 220   g_type_class_add_private (gobject_class, sizeof (GtkMenuBarPrivate));
 221 }
 222
 223 static void
 224 gtk_menu_bar_init (GtkMenuBar *menu_bar)
 225 {
 226   GtkStyleContext *context;
 227
 228   menu_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu_bar,
 229                                                 GTK_TYPE_MENU_BAR,
 230                                                 GtkMenuBarPrivate);
 231
 232   context = gtk_widget_get_style_context (GTK_WIDGET (menu_bar));
 233   gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENUBAR);
 234 }
 235
 236 /**
 237  * gtk_menu_bar_new:
 238  *
 239  * Creates a new #GtkMenuBar
 240  *
 241  * Returns: the new menu bar, as a #GtkWidget
 242  */
 243 GtkWidget*
 244 gtk_menu_bar_new (void)
 245 {
 246   return g_object_new (GTK_TYPE_MENU_BAR, NULL);
 247 }
 248
 249 static void
 250 gtk_menu_bar_set_property (GObject      *object,
 251                            guint         prop_id,
 252                            const GValue *value,
 253                            GParamSpec   *pspec)
 254 {
 255   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 256
 257   switch (prop_id)
 258     {
 259     case PROP_PACK_DIRECTION:
 260       gtk_menu_bar_set_pack_direction (menubar, g_value_get_enum (value));
 261       break;
 262     case PROP_CHILD_PACK_DIRECTION:
 263       gtk_menu_bar_set_child_pack_direction (menubar, g_value_get_enum (value));
 264       break;
 265     default:
 266       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 267       break;
 268     }
 269 }
 270
 271 static void
 272 gtk_menu_bar_get_property (GObject    *object,
 273                            guint       prop_id,
 274                            GValue     *value,
 275                            GParamSpec *pspec)
 276 {
 277   GtkMenuBar *menubar = GTK_MENU_BAR (object);
 278
 279   switch (prop_id)
 280     {
 281     case PROP_PACK_DIRECTION:
 282       g_value_set_enum (value, gtk_menu_bar_get_pack_direction (menubar));
 283       break;
 284     case PROP_CHILD_PACK_DIRECTION:
 285       g_value_set_enum (value, gtk_menu_bar_get_child_pack_direction (menubar));
 286       break;
 287     default:
 288       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 289       break;
 290     }
 291 }
 292
 293 static void
 294 gtk_menu_bar_size_request (GtkWidget      *widget,
 295                            GtkOrientation  orientation,
 296                            gint           *minimum,
 297                            gint           *natural)
 298 {
 299   GtkMenuBar *menu_bar;
 300   GtkMenuBarPrivate *priv;
 301   GtkMenuShell *menu_shell;
 302   GtkWidget *child;
 303   GList *children;
 304   GtkRequisition child_requisition;
 305   gint ipadding;
 306   guint border_width;
 307   gboolean use_toggle_size;
 308   gint size = 0;
 309
 310   menu_bar = GTK_MENU_BAR (widget);
 311   menu_shell = GTK_MENU_SHELL (widget);
 312   priv = menu_bar->priv;
 313
 314   children = menu_shell->priv->children;
 315
 316   if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 317       priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 318     use_toggle_size = (orientation == GTK_ORIENTATION_HORIZONTAL);
 319   else
 320     use_toggle_size = (orientation == GTK_ORIENTATION_VERTICAL);
 321
 322   while (children)
 323     {
 324       child = children->data;
 325       children = children->next;
 326
 327       if (gtk_widget_get_visible (child))
 328         {
 329           gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 330
 331           if (use_toggle_size)
 332             {
 333               gint toggle_size;
 334
 335               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 336                                                  &toggle_size);
 337
 338               child_requisition.width += toggle_size;
 339               child_requisition.height += toggle_size;
 340             }
 341
 342           if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 343               priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 344             {
 345               if (orientation == GTK_ORIENTATION_HORIZONTAL)
 346                 size += child_requisition.width;
 347               else
 348                 size = MAX (size, child_requisition.height);
 349             }
 350           else
 351             {
 352               if (orientation == GTK_ORIENTATION_HORIZONTAL)
 353                 size = MAX (size, child_requisition.width);
 354               else
 355                 size += child_requisition.height;
 356             }
 357         }
 358     }
 359
 360   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 361
 362   border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 363   size += (border_width + ipadding + BORDER_SPACING) * 2;
 364
 365   if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 366     {
 367       GtkStyleContext *context;
 368       GtkBorder *border;
 369
 370       context = gtk_widget_get_style_context (widget);
 371
 372       gtk_style_context_get (context, 0,
 373                              "border-width", &border,
 374                              NULL);
 375
 376       if (orientation == GTK_ORIENTATION_HORIZONTAL)
 377         size += border->left + border->right;
 378       else
 379         size += border->top + border->bottom;
 380       gtk_border_free (border);
 381     }
 382
 383   *minimum = *natural = size;
 384 }
 385
 386 static void
 387 gtk_menu_bar_get_preferred_width (GtkWidget *widget,
 388                                   gint      *minimum,
 389                                   gint      *natural)
 390 {
 391   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_HORIZONTAL, minimum, natural);
 392 }
 393
 394 static void
 395 gtk_menu_bar_get_preferred_height (GtkWidget *widget,
 396                                    gint      *minimum,
 397                                    gint      *natural)
 398 {
 399   gtk_menu_bar_size_request (widget, GTK_ORIENTATION_VERTICAL, minimum, natural);
 400 }
 401
 402 static void
 403 gtk_menu_bar_size_allocate (GtkWidget     *widget,
 404                             GtkAllocation *allocation)
 405 {
 406   GtkMenuBar *menu_bar;
 407   GtkMenuShell *menu_shell;
 408   GtkMenuBarPrivate *priv;
 409   GtkWidget *child;
 410   GList *children;
 411   GtkAllocation child_allocation;
 412   GtkRequisition child_requisition;
 413   guint offset;
 414   GtkTextDirection direction;
 415   gint ltr_x, ltr_y;
 416   gint ipadding;
 417   guint border_width;
 418
 419   g_return_if_fail (GTK_IS_MENU_BAR (widget));
 420   g_return_if_fail (allocation != NULL);
 421
 422   menu_bar = GTK_MENU_BAR (widget);
 423   menu_shell = GTK_MENU_SHELL (widget);
 424   priv = menu_bar->priv;
 425
 426   direction = gtk_widget_get_direction (widget);
 427
 428   gtk_widget_set_allocation (widget, allocation);
 429
 430   if (gtk_widget_get_realized (widget))
 431     gdk_window_move_resize (gtk_widget_get_window (widget),
 432                             allocation->x, allocation->y,
 433                             allocation->width, allocation->height);
 434
 435   gtk_widget_style_get (widget, "internal-padding", &ipadding, NULL);
 436
 437   if (menu_shell->priv->children)
 438     {
 439       border_width = gtk_container_get_border_width (GTK_CONTAINER (menu_bar));
 440       child_allocation.x = (border_width +
 441                             ipadding +
 442                             BORDER_SPACING);
 443       child_allocation.y = (border_width +
 444                             BORDER_SPACING);
 445
 446       if (get_shadow_type (menu_bar) != GTK_SHADOW_NONE)
 447         {
 448           GtkStyleContext *context;
 449           GtkBorder *border;
 450
 451           context = gtk_widget_get_style_context (widget);
 452           gtk_style_context_get (context, 0,
 453                                  "border-width", &border,
 454                                  NULL);
 455
 456           child_allocation.x += border->left;
 457           child_allocation.y += border->top;
 458
 459           gtk_border_free (border);
 460         }
 461
 462       if (priv->pack_direction == GTK_PACK_DIRECTION_LTR ||
 463           priv->pack_direction == GTK_PACK_DIRECTION_RTL)
 464         {
 465           child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
 466
 467           offset = child_allocation.x;  /* Window edge to menubar start */
 468           ltr_x = child_allocation.x;
 469
 470           children = menu_shell->priv->children;
 471           while (children)
 472             {
 473               gint toggle_size;
 474
 475               child = children->data;
 476               children = children->next;
 477
 478               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 479                                                  &toggle_size);
 480               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 481
 482               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 483                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 484                 child_requisition.width += toggle_size;
 485               else
 486                 child_requisition.height += toggle_size;
 487
 488               /* Support for the right justified help menu */
 489               if (children == NULL &&
 490                   GTK_IS_MENU_ITEM (child) &&
 491                   GTK_MENU_ITEM (child)->priv->right_justify)
 492                 {
 493                   ltr_x = allocation->width -
 494                     child_requisition.width - offset;
 495                 }
 496               if (gtk_widget_get_visible (child))
 497                 {
 498                   if ((direction == GTK_TEXT_DIR_LTR) == (priv->pack_direction == GTK_PACK_DIRECTION_LTR))
 499                     child_allocation.x = ltr_x;
 500                   else
 501                     child_allocation.x = allocation->width -
 502                       child_requisition.width - ltr_x;
 503
 504                   child_allocation.width = child_requisition.width;
 505
 506                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 507                                                       toggle_size);
 508                   gtk_widget_size_allocate (child, &child_allocation);
 509
 510                   ltr_x += child_allocation.width;
 511                 }
 512             }
 513         }
 514       else
 515         {
 516           child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
 517
 518           offset = child_allocation.y;  /* Window edge to menubar start */
 519           ltr_y = child_allocation.y;
 520
 521           children = menu_shell->priv->children;
 522           while (children)
 523             {
 524               gint toggle_size;
 525
 526               child = children->data;
 527               children = children->next;
 528
 529               gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child),
 530                                                  &toggle_size);
 531               gtk_widget_get_preferred_size (child, &child_requisition, NULL);
 532
 533               if (priv->child_pack_direction == GTK_PACK_DIRECTION_LTR ||
 534                   priv->child_pack_direction == GTK_PACK_DIRECTION_RTL)
 535                 child_requisition.width += toggle_size;
 536               else
 537                 child_requisition.height += toggle_size;
 538
 539               /* Support for the right justified help menu */
 540               if (children == NULL &&
 541                   GTK_IS_MENU_ITEM (child) &&
 542                   GTK_MENU_ITEM (child)->priv->right_justify)
 543                 {
 544                   ltr_y = allocation->height -
 545                     child_requisition.height - offset;
 546                 }
 547               if (gtk_widget_get_visible (child))
 548                 {
 549                   if ((direction == GTK_TEXT_DIR_LTR) ==
 550                       (priv->pack_direction == GTK_PACK_DIRECTION_TTB))
 551                     child_allocation.y = ltr_y;
 552                   else
 553                     child_allocation.y = allocation->height -
 554                       child_requisition.height - ltr_y;
 555                   child_allocation.height = child_requisition.height;
 556
 557                   gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
 558                                                       toggle_size);
 559                   gtk_widget_size_allocate (child, &child_allocation);
 560
 561                   ltr_y += child_allocation.height;
 562                 }
 563             }
 564         }
 565     }
 566 }
 567
 568 static gint
 569 gtk_menu_bar_draw (GtkWidget *widget,
 570                    cairo_t   *cr)
 571 {
 572   GtkStyleContext *context;
 573   GtkStateFlags state;
 574   int border;
 575
 576   border = gtk_container_get_border_width (GTK_CONTAINER (widget));
 577   context = gtk_widget_get_style_context (widget);
 578
 579   state = gtk_widget_get_state_flags (widget);
 580   gtk_style_context_set_state (context, state);
 581
 582   if (get_shadow_type (GTK_MENU_BAR (widget)) != GTK_SHADOW_NONE)
 583     gtk_render_background (context, cr,
 584                            border, border,
 585                            gtk_widget_get_allocated_width (widget) - border * 2,
 586                            gtk_widget_get_allocated_height (widget) - border * 2);
 587
 588   gtk_render_frame (context, cr,
 589                     border, border,
 590                     gtk_widget_get_allocated_width (widget) - border * 2,
 591                     gtk_widget_get_allocated_height (widget) - border * 2);
 592
 593   GTK_WIDGET_CLASS (gtk_menu_bar_parent_class)->draw (widget, cr);
 594
 595   return FALSE;
 596 }
 597
 598 static GList *
 599 get_menu_bars (GtkWindow *window)
 600 {
 601   return g_object_get_data (G_OBJECT (window), "gtk-menu-bar-list");
 602 }
 603
 604 static GList *
 605 get_viewable_menu_bars (GtkWindow *window)
 606 {
 607   GList *menu_bars;
 608   GList *viewable_menu_bars = NULL;
 609
 610   for (menu_bars = get_menu_bars (window);
 611        menu_bars;
 612        menu_bars = menu_bars->next)
 613     {
 614       GtkWidget *widget = menu_bars->data;
 615       gboolean viewable = TRUE;
 616
 617       while (widget)
 618         {
 619           if (!gtk_widget_get_mapped (widget))
 620             viewable = FALSE;
 621
 622           widget = gtk_widget_get_parent (widget);
 623         }
 624
 625       if (viewable)
 626         viewable_menu_bars = g_list_prepend (viewable_menu_bars, menu_bars->data);
 627     }
 628
 629   return g_list_reverse (viewable_menu_bars);
 630 }
 631
 632 static void
 633 set_menu_bars (GtkWindow *window,
 634                GList     *menubars)
 635 {
 636   g_object_set_data (G_OBJECT (window), I_("gtk-menu-bar-list"), menubars);
 637 }
 638
 639 static gboolean
 640 window_key_press_handler (GtkWidget   *widget,
 641                           GdkEventKey *event,
 642                           gpointer     data)
 643 {
 644   gchar *accel = NULL;
 645   gboolean retval = FALSE;
 646
 647   g_object_get (gtk_widget_get_settings (widget),
 648                 "gtk-menu-bar-accel", &accel,
 649                 NULL);
 650
 651   if (accel && *accel)
 652     {
 653       guint keyval = 0;
 654       GdkModifierType mods = 0;
 655
 656       gtk_accelerator_parse (accel, &keyval, &mods);
 657
 658       if (keyval == 0)
 659         g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
 660
 661       /* FIXME this is wrong, needs to be in the global accel resolution
 662        * thing, to properly consider i18n etc., but that probably requires
 663        * AccelGroup changes etc.
 664        */
 665       if (event->keyval == keyval &&
 666           ((event->state & gtk_accelerator_get_default_mod_mask ()) ==
 667            (mods & gtk_accelerator_get_default_mod_mask ())))
 668         {
 669           GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (widget));
 670           GList *menubars;
 671
 672           menubars = _gtk_container_focus_sort (GTK_CONTAINER (widget), tmp_menubars,
 673                                                 GTK_DIR_TAB_FORWARD, NULL);
 674           g_list_free (tmp_menubars);
 675
 676           if (menubars)
 677             {
 678               GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
 679
 680               _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
 681               gtk_menu_shell_select_first (menu_shell, FALSE);
 682
 683               g_list_free (menubars);
 684
 685               retval = TRUE;
 686             }
 687         }
 688     }
 689
 690   g_free (accel);
 691
 692   return retval;
 693 }
 694
 695 static void
 696 add_to_window (GtkWindow  *window,
 697                GtkMenuBar *menubar)
 698 {
 699   GList *menubars = get_menu_bars (window);
 700
 701   if (!menubars)
 702     {
 703       g_signal_connect (window,
 704                         "key-press-event",
 705                         G_CALLBACK (window_key_press_handler),
 706                         NULL);
 707     }
 708
 709   set_menu_bars (window, g_list_prepend (menubars, menubar));
 710 }
 711
 712 static void
 713 remove_from_window (GtkWindow  *window,
 714                     GtkMenuBar *menubar)
 715 {
 716   GList *menubars = get_menu_bars (window);
 717
 718   menubars = g_list_remove (menubars, menubar);
 719
 720   if (!menubars)
 721     {
 722       g_signal_handlers_disconnect_by_func (window,
 723                                             window_key_press_handler,
 724                                             NULL);
 725     }
 726
 727   set_menu_bars (window, menubars);
 728 }
 729
 730 static void
 731 gtk_menu_bar_hierarchy_changed (GtkWidget *widget,
 732                                 GtkWidget *old_toplevel)
 733 {
 734   GtkWidget *toplevel;
 735   GtkMenuBar *menubar;
 736
 737   menubar = GTK_MENU_BAR (widget);
 738
 739   toplevel = gtk_widget_get_toplevel (widget);
 740
 741   if (old_toplevel)
 742     remove_from_window (GTK_WINDOW (old_toplevel), menubar);
 743
 744   if (gtk_widget_is_toplevel (toplevel))
 745     add_to_window (GTK_WINDOW (toplevel), menubar);
 746 }
 747
 748 /**
 749  * _gtk_menu_bar_cycle_focus:
 750  * @menubar: a #GtkMenuBar
 751  * @dir: direction in which to cycle the focus
 752  *
 753  * Move the focus between menubars in the toplevel.
 754  **/
 755 void
 756 _gtk_menu_bar_cycle_focus (GtkMenuBar       *menubar,
 757                            GtkDirectionType  dir)
 758 {
 759   GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menubar));
 760   GtkMenuItem *to_activate = NULL;
 761
 762   if (gtk_widget_is_toplevel (toplevel))
 763     {
 764       GList *tmp_menubars = get_viewable_menu_bars (GTK_WINDOW (toplevel));
 765       GList *menubars;
 766       GList *current;
 767
 768       menubars = _gtk_container_focus_sort (GTK_CONTAINER (toplevel), tmp_menubars,
 769                                             dir, GTK_WIDGET (menubar));
 770       g_list_free (tmp_menubars);
 771
 772       if (menubars)
 773         {
 774           current = g_list_find (menubars, menubar);
 775
 776           if (current && current->next)
 777             {
 778               GtkMenuShell *new_menushell = GTK_MENU_SHELL (current->next->data);
 779               if (new_menushell->priv->children)
 780                 to_activate = new_menushell->priv->children->data;
 781             }
 782         }
 783
 784       g_list_free (menubars);
 785     }
 786
 787   gtk_menu_shell_cancel (GTK_MENU_SHELL (menubar));
 788
 789   if (to_activate)
 790     g_signal_emit_by_name (to_activate, "activate_item");
 791 }
 792
 793 static GtkShadowType
 794 get_shadow_type (GtkMenuBar *menubar)
 795 {
 796   GtkShadowType shadow_type = GTK_SHADOW_OUT;
 797
 798   gtk_widget_style_get (GTK_WIDGET (menubar),
 799                         "shadow-type", &shadow_type,
 800                         NULL);
 801
 802   return shadow_type;
 803 }
 804
 805 static gint
 806 gtk_menu_bar_get_popup_delay (GtkMenuShell *menu_shell)
 807 {
 808   gint popup_delay;
 809
 810   g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
 811                 "gtk-menu-bar-popup-delay", &popup_delay,
 812                 NULL);
 813
 814   return popup_delay;
 815 }
 816
 817 static void
 818 gtk_menu_bar_move_current (GtkMenuShell         *menu_shell,
 819                            GtkMenuDirectionType  direction)
 820 {
 821   GtkMenuBar *menubar = GTK_MENU_BAR (menu_shell);
 822   GtkTextDirection text_dir;
 823   GtkPackDirection pack_dir;
 824
 825   text_dir = gtk_widget_get_direction (GTK_WIDGET (menubar));
 826   pack_dir = gtk_menu_bar_get_pack_direction (menubar);
 827
 828   if (pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL)
 829      {
 830       if ((text_dir == GTK_TEXT_DIR_RTL) == (pack_dir == GTK_PACK_DIRECTION_LTR))
 831         {
 832           switch (direction)
 833             {
 834             case GTK_MENU_DIR_PREV:
 835               direction = GTK_MENU_DIR_NEXT;
 836               break;
 837             case GTK_MENU_DIR_NEXT:
 838               direction = GTK_MENU_DIR_PREV;
 839               break;
 840             default: ;
 841             }
 842         }
 843     }
 844   else
 845     {
 846       switch (direction)
 847         {
 848         case GTK_MENU_DIR_PARENT:
 849           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 850             direction = GTK_MENU_DIR_PREV;
 851           else
 852             direction = GTK_MENU_DIR_NEXT;
 853           break;
 854         case GTK_MENU_DIR_CHILD:
 855           if ((text_dir == GTK_TEXT_DIR_LTR) == (pack_dir == GTK_PACK_DIRECTION_TTB))
 856             direction = GTK_MENU_DIR_NEXT;
 857           else
 858             direction = GTK_MENU_DIR_PREV;
 859           break;
 860         case GTK_MENU_DIR_PREV:
 861           if (text_dir == GTK_TEXT_DIR_RTL)
 862             direction = GTK_MENU_DIR_CHILD;
 863           else
 864             direction = GTK_MENU_DIR_PARENT;
 865           break;
 866         case GTK_MENU_DIR_NEXT:
 867           if (text_dir == GTK_TEXT_DIR_RTL)
 868             direction = GTK_MENU_DIR_PARENT;
 869           else
 870             direction = GTK_MENU_DIR_CHILD;
 871           break;
 872         default: ;
 873         }
 874     }
 875
 876   GTK_MENU_SHELL_CLASS (gtk_menu_bar_parent_class)->move_current (menu_shell, direction);
 877 }
 878
 879 /**
 880  * gtk_menu_bar_get_pack_direction:
 881  * @menubar: a #GtkMenuBar
 882  *
 883  * Retrieves the current pack direction of the menubar.
 884  * See gtk_menu_bar_set_pack_direction().
 885  *
 886  * Return value: the pack direction
 887  *
 888  * Since: 2.8
 889  */
 890 GtkPackDirection
 891 gtk_menu_bar_get_pack_direction (GtkMenuBar *menubar)
 892 {
 893   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 894                         GTK_PACK_DIRECTION_LTR);
 895
 896   return menubar->priv->pack_direction;
 897 }
 898
 899 /**
 900  * gtk_menu_bar_set_pack_direction:
 901  * @menubar: a #GtkMenuBar
 902  * @pack_dir: a new #GtkPackDirection
 903  *
 904  * Sets how items should be packed inside a menubar.
 905  *
 906  * Since: 2.8
 907  */
 908 void
 909 gtk_menu_bar_set_pack_direction (GtkMenuBar       *menubar,
 910                                  GtkPackDirection  pack_dir)
 911 {
 912   GtkMenuBarPrivate *priv;
 913   GList *l;
 914
 915   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 916
 917   priv = menubar->priv;
 918
 919   if (priv->pack_direction != pack_dir)
 920     {
 921       priv->pack_direction = pack_dir;
 922
 923       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 924
 925       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 926         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 927
 928       g_object_notify (G_OBJECT (menubar), "pack-direction");
 929     }
 930 }
 931
 932 /**
 933  * gtk_menu_bar_get_child_pack_direction:
 934  * @menubar: a #GtkMenuBar
 935  *
 936  * Retrieves the current child pack direction of the menubar.
 937  * See gtk_menu_bar_set_child_pack_direction().
 938  *
 939  * Return value: the child pack direction
 940  *
 941  * Since: 2.8
 942  */
 943 GtkPackDirection
 944 gtk_menu_bar_get_child_pack_direction (GtkMenuBar *menubar)
 945 {
 946   g_return_val_if_fail (GTK_IS_MENU_BAR (menubar),
 947                         GTK_PACK_DIRECTION_LTR);
 948
 949   return menubar->priv->child_pack_direction;
 950 }
 951
 952 /**
 953  * gtk_menu_bar_set_child_pack_direction:
 954  * @menubar: a #GtkMenuBar
 955  * @child_pack_dir: a new #GtkPackDirection
 956  *
 957  * Sets how widgets should be packed inside the children of a menubar.
 958  *
 959  * Since: 2.8
 960  */
 961 void
 962 gtk_menu_bar_set_child_pack_direction (GtkMenuBar       *menubar,
 963                                        GtkPackDirection  child_pack_dir)
 964 {
 965   GtkMenuBarPrivate *priv;
 966   GList *l;
 967
 968   g_return_if_fail (GTK_IS_MENU_BAR (menubar));
 969
 970   priv = menubar->priv;
 971
 972   if (priv->child_pack_direction != child_pack_dir)
 973     {
 974       priv->child_pack_direction = child_pack_dir;
 975
 976       gtk_widget_queue_resize (GTK_WIDGET (menubar));
 977
 978       for (l = GTK_MENU_SHELL (menubar)->priv->children; l; l = l->next)
 979         gtk_widget_queue_resize (GTK_WIDGET (l->data));
 980
 981       g_object_notify (G_OBJECT (menubar), "child-pack-direction");
 982     }
 983 }