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