gtkmenuitem.c 33.3 KB
Newer Older
Elliot Lee's avatar
Elliot Lee committed
1 2 3 4
/* GTK - The GIMP Toolkit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
5
 * modify it under the terms of the GNU Lesser General Public
Elliot Lee's avatar
Elliot Lee committed
6 7 8 9 10 11
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12
 * Lesser General Public License for more details.
Elliot Lee's avatar
Elliot Lee committed
13
 *
14
 * You should have received a copy of the GNU Lesser General Public
15 16 17
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
Elliot Lee's avatar
Elliot Lee committed
18
 */
19 20

/*
21
 * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
22 23 24 25 26
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

27 28
#define GTK_MENU_INTERNALS

Elliot Lee's avatar
Elliot Lee committed
29
#include <string.h>
Tim Janik's avatar
Tim Janik committed
30
#include "gtkaccellabel.h"
Elliot Lee's avatar
Elliot Lee committed
31
#include "gtkmain.h"
32
#include "gtkmarshalers.h"
Elliot Lee's avatar
Elliot Lee committed
33
#include "gtkmenu.h"
34
#include "gtkmenubar.h"
Elliot Lee's avatar
Elliot Lee committed
35
#include "gtkmenuitem.h"
36
#include "gtkseparatormenuitem.h"
Elliot Lee's avatar
Elliot Lee committed
37 38 39 40
#include "gtksignal.h"


#define BORDER_SPACING  3
41
#define SELECT_TIMEOUT  75
Elliot Lee's avatar
Elliot Lee committed
42 43 44 45 46 47

#define MENU_ITEM_CLASS(w)  GTK_MENU_ITEM_CLASS (GTK_OBJECT (w)->klass)


enum {
  ACTIVATE,
48
  ACTIVATE_ITEM,
49 50
  TOGGLE_SIZE_REQUEST,
  TOGGLE_SIZE_ALLOCATE,
Elliot Lee's avatar
Elliot Lee committed
51 52 53 54 55 56 57
  LAST_SIGNAL
};


static void gtk_menu_item_class_init     (GtkMenuItemClass *klass);
static void gtk_menu_item_init           (GtkMenuItem      *menu_item);
static void gtk_menu_item_destroy        (GtkObject        *object);
58
static void gtk_menu_item_finalize       (GObject          *object);
Elliot Lee's avatar
Elliot Lee committed
59 60 61 62
static void gtk_menu_item_size_request   (GtkWidget        *widget,
					  GtkRequisition   *requisition);
static void gtk_menu_item_size_allocate  (GtkWidget        *widget,
					  GtkAllocation    *allocation);
63 64 65 66
static void gtk_menu_item_realize        (GtkWidget        *widget);
static void gtk_menu_item_unrealize      (GtkWidget        *widget);
static void gtk_menu_item_map            (GtkWidget        *widget);
static void gtk_menu_item_unmap          (GtkWidget        *widget);
Elliot Lee's avatar
Elliot Lee committed
67 68 69 70
static void gtk_menu_item_paint          (GtkWidget        *widget,
					  GdkRectangle     *area);
static gint gtk_menu_item_expose         (GtkWidget        *widget,
					  GdkEventExpose   *event);
71 72
static void gtk_menu_item_parent_set     (GtkWidget        *widget,
					  GtkWidget        *previous_parent);
73

74

75 76 77 78
static void gtk_real_menu_item_select               (GtkItem     *item);
static void gtk_real_menu_item_deselect             (GtkItem     *item);
static void gtk_real_menu_item_activate_item        (GtkMenuItem *item);
static void gtk_real_menu_item_toggle_size_request  (GtkMenuItem *menu_item,
79
						     gint        *requisition);
80
static void gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
81
						     gint         allocation);
82
static gboolean gtk_menu_item_mnemonic_activate     (GtkWidget   *widget,
83
						     gboolean     group_cycling);
84

Elliot Lee's avatar
Elliot Lee committed
85
static gint gtk_menu_item_select_timeout (gpointer          data);
86
static void gtk_menu_item_popup_submenu  (gpointer     data);
Elliot Lee's avatar
Elliot Lee committed
87 88 89
static void gtk_menu_item_position_menu  (GtkMenu          *menu,
					  gint             *x,
					  gint             *y,
90
					  gboolean         *push_in,
Elliot Lee's avatar
Elliot Lee committed
91
					  gpointer          user_data);
92 93
static void gtk_menu_item_show_all       (GtkWidget        *widget);
static void gtk_menu_item_hide_all       (GtkWidget        *widget);
94 95 96 97
static void gtk_menu_item_forall         (GtkContainer    *container,
					  gboolean         include_internals,
					  GtkCallback      callback,
					  gpointer         callback_data);
Elliot Lee's avatar
Elliot Lee committed
98

99

Elliot Lee's avatar
Elliot Lee committed
100
static GtkItemClass *parent_class;
101
static guint menu_item_signals[LAST_SIGNAL] = { 0 };
102 103
static guint32	last_submenu_deselect_time = 0;

Elliot Lee's avatar
Elliot Lee committed
104 105


Tim Janik's avatar
Tim Janik committed
106
GtkType
107
gtk_menu_item_get_type (void)
Elliot Lee's avatar
Elliot Lee committed
108
{
Tim Janik's avatar
Tim Janik committed
109
  static GtkType menu_item_type = 0;
Elliot Lee's avatar
Elliot Lee committed
110 111 112

  if (!menu_item_type)
    {
113
      static const GTypeInfo menu_item_info =
Elliot Lee's avatar
Elliot Lee committed
114 115
      {
	sizeof (GtkMenuItemClass),
116 117 118 119 120 121 122 123
	NULL,           /* base_init */
	NULL,           /* base_finalize */
	(GClassInitFunc) gtk_menu_item_class_init,
	NULL,           /* class_finalize */
	NULL,           /* class_data */
	sizeof (GtkMenuItem),
	16,             /* n_preallocs */
	(GInstanceInitFunc) gtk_menu_item_init,
Elliot Lee's avatar
Elliot Lee committed
124 125
      };

126
      menu_item_type = g_type_register_static (GTK_TYPE_ITEM, "GtkMenuItem", &menu_item_info, 0);
Elliot Lee's avatar
Elliot Lee committed
127 128 129 130 131 132 133 134
    }

  return menu_item_type;
}

static void
gtk_menu_item_class_init (GtkMenuItemClass *klass)
{
135 136 137 138 139
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
  GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
  GtkItemClass *item_class = GTK_ITEM_CLASS (klass);
Elliot Lee's avatar
Elliot Lee committed
140

141
  parent_class = g_type_class_peek_parent (klass);
Elliot Lee's avatar
Elliot Lee committed
142

143
  gobject_class->finalize = gtk_menu_item_finalize;
144 145 146 147 148 149

  object_class->destroy = gtk_menu_item_destroy;

  widget_class->size_request = gtk_menu_item_size_request;
  widget_class->size_allocate = gtk_menu_item_size_allocate;
  widget_class->expose_event = gtk_menu_item_expose;
150 151 152 153
  widget_class->realize = gtk_menu_item_realize;
  widget_class->unrealize = gtk_menu_item_unrealize;
  widget_class->map = gtk_menu_item_map;
  widget_class->unmap = gtk_menu_item_unmap;
154 155
  widget_class->show_all = gtk_menu_item_show_all;
  widget_class->hide_all = gtk_menu_item_hide_all;
156
  widget_class->mnemonic_activate = gtk_menu_item_mnemonic_activate;
157
  widget_class->parent_set = gtk_menu_item_parent_set;
158
  
159 160 161 162 163 164 165 166 167 168 169 170
  container_class->forall = gtk_menu_item_forall;

  item_class->select = gtk_real_menu_item_select;
  item_class->deselect = gtk_real_menu_item_deselect;

  klass->activate = NULL;
  klass->activate_item = gtk_real_menu_item_activate_item;
  klass->toggle_size_request = gtk_real_menu_item_toggle_size_request;
  klass->toggle_size_allocate = gtk_real_menu_item_toggle_size_allocate;

  klass->hide_on_activate = TRUE;

Elliot Lee's avatar
Elliot Lee committed
171 172
  menu_item_signals[ACTIVATE] =
    gtk_signal_new ("activate",
173
                    GTK_RUN_FIRST | GTK_RUN_ACTION,
174
                    GTK_CLASS_TYPE (object_class),
Elliot Lee's avatar
Elliot Lee committed
175
                    GTK_SIGNAL_OFFSET (GtkMenuItemClass, activate),
176
                    _gtk_marshal_VOID__VOID,
Elliot Lee's avatar
Elliot Lee committed
177
		    GTK_TYPE_NONE, 0);
178
  widget_class->activate_signal = menu_item_signals[ACTIVATE];
Elliot Lee's avatar
Elliot Lee committed
179

180 181 182
  menu_item_signals[ACTIVATE_ITEM] =
    gtk_signal_new ("activate_item",
                    GTK_RUN_FIRST,
183
                    GTK_CLASS_TYPE (object_class),
184 185 186 187
                    GTK_SIGNAL_OFFSET (GtkMenuItemClass, activate_item),
                    gtk_signal_default_marshaller,
		    GTK_TYPE_NONE, 0);

188 189 190 191 192
  menu_item_signals[TOGGLE_SIZE_REQUEST] =
    gtk_signal_new ("toggle_size_request",
                    GTK_RUN_FIRST,
                    GTK_CLASS_TYPE (object_class),
                    GTK_SIGNAL_OFFSET (GtkMenuItemClass, toggle_size_request),
193
                    _gtk_marshal_VOID__POINTER,
194
		    GTK_TYPE_NONE, 1,
195
		    GTK_TYPE_POINTER);
196 197 198 199 200 201

  menu_item_signals[TOGGLE_SIZE_ALLOCATE] =
    gtk_signal_new ("toggle_size_allocate",
                    GTK_RUN_FIRST,
                    GTK_CLASS_TYPE (object_class),
                    GTK_SIGNAL_OFFSET (GtkMenuItemClass, toggle_size_allocate),
202
                    _gtk_marshal_NONE__INT,
203
		    GTK_TYPE_NONE, 1,
204
		    GTK_TYPE_INT);
205 206 207 208 209 210 211 212 213

  gtk_widget_class_install_style_property_parser (widget_class,
						  g_param_spec_enum ("selected_shadow_type",
								     "Selected Shadow Type",
								     "Shadow type when item is selected",
								     GTK_TYPE_SHADOW_TYPE,
								     GTK_SHADOW_OUT,
								     G_PARAM_READABLE),
						  gtk_rc_property_parse_enum);
Elliot Lee's avatar
Elliot Lee committed
214 215 216 217 218
}

static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
219 220
  GTK_WIDGET_SET_FLAGS (menu_item, GTK_NO_WINDOW);
  
Elliot Lee's avatar
Elliot Lee committed
221 222
  menu_item->submenu = NULL;
  menu_item->toggle_size = 0;
223
  menu_item->accelerator_width = 0;
Elliot Lee's avatar
Elliot Lee committed
224 225 226 227 228 229 230 231 232
  menu_item->show_submenu_indicator = FALSE;
  menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
  menu_item->submenu_placement = GTK_TOP_BOTTOM;
  menu_item->right_justify = FALSE;

  menu_item->timer = 0;
}

GtkWidget*
233
gtk_menu_item_new (void)
Elliot Lee's avatar
Elliot Lee committed
234 235 236 237 238 239 240 241
{
  return GTK_WIDGET (gtk_type_new (gtk_menu_item_get_type ()));
}

GtkWidget*
gtk_menu_item_new_with_label (const gchar *label)
{
  GtkWidget *menu_item;
Tim Janik's avatar
Tim Janik committed
242
  GtkWidget *accel_label;
Elliot Lee's avatar
Elliot Lee committed
243 244

  menu_item = gtk_menu_item_new ();
Tim Janik's avatar
Tim Janik committed
245 246
  accel_label = gtk_accel_label_new (label);
  gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
Elliot Lee's avatar
Elliot Lee committed
247

Tim Janik's avatar
Tim Janik committed
248 249 250
  gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
  gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), menu_item);
  gtk_widget_show (accel_label);
Elliot Lee's avatar
Elliot Lee committed
251 252 253 254

  return menu_item;
}

255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283

/**
 * gtk_menu_item_new_with_mnemonic:
 * @label: The text of the button, with an underscore in front of the
 *         mnemonic character
 * @returns: a new #GtkMenuItem
 *
 * Creates a new #GtkMenuItem containing a label. The label
 * will be created using gtk_label_new_with_mnemonic(), so underscores
 * in @label indicate the mnemonic for the menu item.
 **/
GtkWidget*
gtk_menu_item_new_with_mnemonic (const gchar *label)
{
  GtkWidget *menu_item;
  GtkWidget *accel_label;

  menu_item = gtk_menu_item_new ();
  accel_label = gtk_type_new (GTK_TYPE_ACCEL_LABEL);
  gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
  gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);

  gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
  gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label), menu_item);
  gtk_widget_show (accel_label);

  return menu_item;
}

Elliot Lee's avatar
Elliot Lee committed
284 285 286 287 288 289 290 291 292 293
static void
gtk_menu_item_destroy (GtkObject *object)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (object));

  menu_item = GTK_MENU_ITEM (object);

  if (menu_item->submenu)
294
    gtk_widget_destroy (menu_item->submenu);
Elliot Lee's avatar
Elliot Lee committed
295

296 297 298 299 300 301 302 303 304 305 306
  GTK_OBJECT_CLASS (parent_class)->destroy (object);
}

static void
gtk_menu_item_finalize (GObject *object)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (object);

  g_free (menu_item->accel_path);

  G_OBJECT_CLASS (parent_class)->finalize (object);
Elliot Lee's avatar
Elliot Lee committed
307 308
}

309 310 311 312 313 314 315 316 317 318 319 320 321 322
static void
gtk_menu_item_detacher (GtkWidget     *widget,
			GtkMenu       *menu)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  menu_item = GTK_MENU_ITEM (widget);
  g_return_if_fail (menu_item->submenu == (GtkWidget*) menu);

  menu_item->submenu = NULL;
}

Elliot Lee's avatar
Elliot Lee committed
323 324 325 326 327
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
			   GtkWidget   *submenu)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
328
  
329
  if (menu_item->submenu != submenu)
Elliot Lee's avatar
Elliot Lee committed
330
    {
331 332
      gtk_menu_item_remove_submenu (menu_item);
      
333
      menu_item->submenu = submenu;
334 335 336 337
      gtk_menu_attach_to_widget (GTK_MENU (submenu),
				 GTK_WIDGET (menu_item),
				 gtk_menu_item_detacher);
      
338 339
      if (GTK_WIDGET (menu_item)->parent)
	gtk_widget_queue_resize (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
340 341 342
    }
}

343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359
/**
 * gtk_menu_item_get_submenu:
 * @menu_item: a #GtkMenuItem
 *
 * Gets the submenu underneath this menu item, if any. See
 * gtk_menu_item_set_submenu().
 *
 * Return value: submenu for this menu item, or %NULL if none.
 **/
GtkWidget *
gtk_menu_item_get_submenu (GtkMenuItem *menu_item)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);

  return menu_item->submenu;
}

360 361 362 363 364 365 366 367 368
void
gtk_menu_item_remove_submenu (GtkMenuItem         *menu_item)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
      
  if (menu_item->submenu)
    gtk_menu_detach (GTK_MENU (menu_item->submenu));
}

369 370 371
void _gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
				   GtkSubmenuPlacement  placement);

Elliot Lee's avatar
Elliot Lee committed
372
void
Owen Taylor's avatar
Owen Taylor committed
373
_gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
Elliot Lee's avatar
Elliot Lee committed
374 375 376 377 378 379 380 381 382 383
			     GtkSubmenuPlacement  placement)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->submenu_placement = placement;
}

void
gtk_menu_item_select (GtkMenuItem *menu_item)
{
384 385
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
386 387 388 389 390 391
  gtk_item_select (GTK_ITEM (menu_item));
}

void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
392 393
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
394 395 396 397 398 399
  gtk_item_deselect (GTK_ITEM (menu_item));
}

void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
400 401
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
402 403 404
  gtk_signal_emit (GTK_OBJECT (menu_item), menu_item_signals[ACTIVATE]);
}

405 406
void
gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
407
				   gint        *requisition)
408 409 410 411 412 413 414 415
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  gtk_signal_emit (GTK_OBJECT (menu_item), menu_item_signals[TOGGLE_SIZE_REQUEST], requisition);
}

void
gtk_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
416
				    gint         allocation)
417 418 419 420 421 422
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  gtk_signal_emit (GTK_OBJECT (menu_item), menu_item_signals[TOGGLE_SIZE_ALLOCATE], allocation);
}

423 424 425 426 427 428 429 430 431 432
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
				   gpointer data)
{
  guint *width = data;

  if (GTK_IS_ACCEL_LABEL (widget))
    {
      guint w;

433
      w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
434 435 436 437 438 439 440
      *width = MAX (*width, w);
    }
  else if (GTK_IS_CONTAINER (widget))
    gtk_container_foreach (GTK_CONTAINER (widget),
			   gtk_menu_item_accel_width_foreach,
			   data);
}
Elliot Lee's avatar
Elliot Lee committed
441 442 443 444 445

static void
gtk_menu_item_size_request (GtkWidget      *widget,
			    GtkRequisition *requisition)
{
Tim Janik's avatar
Tim Janik committed
446
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
447
  GtkBin *bin;
448
  guint accel_width;
Elliot Lee's avatar
Elliot Lee committed
449 450 451 452 453

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
  g_return_if_fail (requisition != NULL);

  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
454
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
455 456

  requisition->width = (GTK_CONTAINER (widget)->border_width +
457
			widget->style->xthickness +
Elliot Lee's avatar
Elliot Lee committed
458 459
			BORDER_SPACING) * 2;
  requisition->height = (GTK_CONTAINER (widget)->border_width +
460
			 widget->style->ythickness) * 2;
Elliot Lee's avatar
Elliot Lee committed
461 462 463

  if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
    {
464 465 466
      GtkRequisition child_requisition;
      
      gtk_widget_size_request (bin->child, &child_requisition);
Elliot Lee's avatar
Elliot Lee committed
467

468 469
      requisition->width += child_requisition.width;
      requisition->height += child_requisition.height;
470

471 472 473
      if (menu_item->submenu && menu_item->show_submenu_indicator)
	requisition->width += child_requisition.height;
    }
474 475 476 477 478 479

  accel_width = 0;
  gtk_container_foreach (GTK_CONTAINER (menu_item),
			 gtk_menu_item_accel_width_foreach,
			 &accel_width);
  menu_item->accelerator_width = accel_width;
Elliot Lee's avatar
Elliot Lee committed
480 481 482 483 484 485
}

static void
gtk_menu_item_size_allocate (GtkWidget     *widget,
			     GtkAllocation *allocation)
{
Tim Janik's avatar
Tim Janik committed
486
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
487 488 489 490 491 492
  GtkBin *bin;
  GtkAllocation child_allocation;

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
  g_return_if_fail (allocation != NULL);

Tim Janik's avatar
Tim Janik committed
493
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
494
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
495 496
  
  widget->allocation = *allocation;
Elliot Lee's avatar
Elliot Lee committed
497 498 499

  if (bin->child)
    {
500 501
      GtkRequisition child_requisition;
      
Elliot Lee's avatar
Elliot Lee committed
502
      child_allocation.x = (GTK_CONTAINER (widget)->border_width +
503
                            widget->style->xthickness +
Elliot Lee's avatar
Elliot Lee committed
504
			    BORDER_SPACING);
Owen Taylor's avatar
Owen Taylor committed
505
      child_allocation.y = (GTK_CONTAINER (widget)->border_width +
506
			    widget->style->ythickness);
507 508
      child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
      child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
Elliot Lee's avatar
Elliot Lee committed
509
      child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
Tim Janik's avatar
Tim Janik committed
510
      child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
511 512
      child_allocation.x += widget->allocation.x;
      child_allocation.y += widget->allocation.y;
513 514

      gtk_widget_get_child_requisition (bin->child, &child_requisition);
Tim Janik's avatar
Tim Janik committed
515
      if (menu_item->submenu && menu_item->show_submenu_indicator)
516
	child_allocation.width -= child_requisition.height;
517

518 519 520
      if (child_allocation.width < 1)
	child_allocation.width = 1;

Elliot Lee's avatar
Elliot Lee committed
521 522 523
      gtk_widget_size_allocate (bin->child, &child_allocation);
    }

Tim Janik's avatar
Tim Janik committed
524
  if (GTK_WIDGET_REALIZED (widget))
525
    gdk_window_move_resize (menu_item->event_window,
Tim Janik's avatar
Tim Janik committed
526 527
                            allocation->x, allocation->y,
                            allocation->width, allocation->height);
Elliot Lee's avatar
Elliot Lee committed
528

Tim Janik's avatar
Tim Janik committed
529 530
  if (menu_item->submenu)
    gtk_menu_reposition (GTK_MENU (menu_item->submenu));
Elliot Lee's avatar
Elliot Lee committed
531 532
}

533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
static void
gtk_menu_item_realize (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  GdkWindowAttr attributes;
  gint attributes_mask;

  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);

  widget->window = gtk_widget_get_parent_window (widget);
  gdk_window_ref (widget->window);
  
  attributes.x = widget->allocation.x;
  attributes.y = widget->allocation.y;
  attributes.width = widget->allocation.width;
  attributes.height = widget->allocation.height;
  attributes.window_type = GDK_WINDOW_CHILD;
  attributes.wclass = GDK_INPUT_ONLY;
  attributes.event_mask = (gtk_widget_get_events (widget) |
			   GDK_EXPOSURE_MASK |
			   GDK_BUTTON_PRESS_MASK |
			   GDK_BUTTON_RELEASE_MASK |
			   GDK_ENTER_NOTIFY_MASK |
			   GDK_LEAVE_NOTIFY_MASK |
			   GDK_POINTER_MOTION_MASK);

  attributes_mask = GDK_WA_X | GDK_WA_Y;
  menu_item->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
  gdk_window_set_user_data (menu_item->event_window, widget);

  widget->style = gtk_style_attach (widget->style, widget->window);
}

static void
gtk_menu_item_unrealize (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);

  gdk_window_set_user_data (menu_item->event_window, NULL);
  gdk_window_destroy (menu_item->event_window);
  menu_item->event_window = NULL;
  
  if (GTK_WIDGET_CLASS (parent_class)->unrealize)
    (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}

static void
gtk_menu_item_map (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  
  GTK_WIDGET_CLASS (parent_class)->map (widget);
585 586

  gdk_window_show (menu_item->event_window);
587 588 589 590 591 592 593 594 595 596 597 598
}

static void
gtk_menu_item_unmap (GtkWidget *widget)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
    
  gdk_window_hide (menu_item->event_window);

  GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}

Elliot Lee's avatar
Elliot Lee committed
599 600 601 602 603 604
static void
gtk_menu_item_paint (GtkWidget    *widget,
		     GdkRectangle *area)
{
  GtkMenuItem *menu_item;
  GtkStateType state_type;
605
  GtkShadowType shadow_type, selected_shadow_type;
Elliot Lee's avatar
Elliot Lee committed
606 607
  gint width, height;
  gint x, y;
608
  gint border_width = GTK_CONTAINER (widget)->border_width;
Elliot Lee's avatar
Elliot Lee committed
609 610 611 612 613 614 615

  if (GTK_WIDGET_DRAWABLE (widget))
    {
      menu_item = GTK_MENU_ITEM (widget);

      state_type = widget->state;

616 617 618 619
      x = widget->allocation.x + border_width;
      y = widget->allocation.y + border_width;
      width = widget->allocation.width - border_width * 2;
      height = widget->allocation.height - border_width * 2;
620
      
Elliot Lee's avatar
Elliot Lee committed
621 622
      if ((state_type == GTK_STATE_PRELIGHT) &&
	  (GTK_BIN (menu_item)->child))
623 624 625 626 627 628 629 630 631 632 633 634
	{
	  gtk_widget_style_get (widget,
				"selected_shadow_type", &selected_shadow_type,
				NULL);
	  gtk_paint_box (widget->style,
			 widget->window,
			 GTK_STATE_PRELIGHT,
			 selected_shadow_type,
			 area, widget, "menuitem",
			 x, y, width, height);
	}
  
Tim Janik's avatar
Tim Janik committed
635
      if (menu_item->submenu && menu_item->show_submenu_indicator)
Elliot Lee's avatar
Elliot Lee committed
636
	{
637
	  GtkRequisition child_requisition;
638
	  gint arrow_x, arrow_y;
639 640 641 642 643 644 645 646
	  gint arrow_size;
	  gint arrow_extent;

	  gtk_widget_get_child_requisition (GTK_BIN (menu_item)->child,
					    &child_requisition);

	  arrow_size = child_requisition.height - 2 * widget->style->ythickness;
	  arrow_extent = arrow_size * 0.6;
647
	  
Elliot Lee's avatar
Elliot Lee committed
648 649 650 651
	  shadow_type = GTK_SHADOW_OUT;
	  if (state_type == GTK_STATE_PRELIGHT)
	    shadow_type = GTK_SHADOW_IN;

652 653 654
	  arrow_x = x + width - 1 - arrow_size + (arrow_size - arrow_extent) / 2;
	  arrow_y = y + (height - arrow_extent) / 2;

655 656 657 658
	  gtk_paint_arrow (widget->style, widget->window,
			   state_type, shadow_type, 
			   area, widget, "menuitem", 
			   GTK_ARROW_RIGHT, TRUE,
659 660
			   arrow_x, arrow_y,
			   arrow_extent, arrow_extent);
Elliot Lee's avatar
Elliot Lee committed
661 662 663
	}
      else if (!GTK_BIN (menu_item)->child)
	{
664 665 666 667
	  gtk_paint_hline (widget->style, widget->window, GTK_STATE_NORMAL,
			   area, widget, "menuitem",
			   widget->allocation.x, widget->allocation.width,
			   widget->allocation.y);
Elliot Lee's avatar
Elliot Lee committed
668 669 670 671 672 673 674 675 676 677 678 679 680 681 682
	}
    }
}

static gint
gtk_menu_item_expose (GtkWidget      *widget,
		      GdkEventExpose *event)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (widget), FALSE);
  g_return_val_if_fail (event != NULL, FALSE);

  if (GTK_WIDGET_DRAWABLE (widget))
    {
      gtk_menu_item_paint (widget, &event->area);

683
      (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
Elliot Lee's avatar
Elliot Lee committed
684 685 686 687 688 689 690 691 692 693 694 695 696 697
    }

  return FALSE;
}

static void
gtk_real_menu_item_select (GtkItem *item)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (item));

  menu_item = GTK_MENU_ITEM (item);

698 699 700
  /*  if (menu_item->submenu && !GTK_WIDGET_VISIBLE (menu_item->submenu))*/
  if (menu_item->submenu)
    {
701 702 703 704
      guint32 etime;
      GdkEvent *event = gtk_get_current_event ();

      etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
705 706
      if (event &&
	  etime >= last_submenu_deselect_time &&
707
	  last_submenu_deselect_time + SELECT_TIMEOUT > etime)
708 709 710 711 712 713 714 715 716 717 718 719
	{
	  if (!menu_item->timer)
	    menu_item->timer = gtk_timeout_add (SELECT_TIMEOUT - (etime - last_submenu_deselect_time),
						gtk_menu_item_select_timeout,
						menu_item);
	  if (event &&
	      event->type != GDK_BUTTON_PRESS &&
	      event->type != GDK_ENTER_NOTIFY)
	    menu_item->timer_from_keypress = TRUE;
	  else
	    menu_item->timer_from_keypress = FALSE;
	}
720
      else
721
	gtk_menu_item_popup_submenu (menu_item);
722 723
      if (event)
	gdk_event_free(event);
724
    }
725
  
Elliot Lee's avatar
Elliot Lee committed
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740
  gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_PRELIGHT);
  gtk_widget_draw (GTK_WIDGET (menu_item), NULL);
}

static void
gtk_real_menu_item_deselect (GtkItem *item)
{
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (item));

  menu_item = GTK_MENU_ITEM (item);

  if (menu_item->submenu)
    {
741 742 743
      guint32 etime;
      GdkEvent *event = gtk_get_current_event ();

Elliot Lee's avatar
Elliot Lee committed
744
      if (menu_item->timer)
745 746 747 748
	{
	  gtk_timeout_remove (menu_item->timer);
	  menu_item->timer = 0;
	}
Elliot Lee's avatar
Elliot Lee committed
749 750
      else
	gtk_menu_popdown (GTK_MENU (menu_item->submenu));
751 752 753 754

      etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
      if (etime > last_submenu_deselect_time)
	last_submenu_deselect_time = etime;
755 756
      if (event)
	gdk_event_free(event);
Elliot Lee's avatar
Elliot Lee committed
757 758 759 760 761 762
    }

  gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_NORMAL);
  gtk_widget_draw (GTK_WIDGET (menu_item), NULL);
}

763
static gboolean
764
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781
				 gboolean   group_cycling)
{
  if (group_cycling)
    {
      if (widget->parent &&
	  GTK_IS_MENU_SHELL (widget->parent))
	gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent),
				    widget);

    }
  else
    gtk_signal_emit (GTK_OBJECT (widget), menu_item_signals[ACTIVATE_ITEM]);
  
  return TRUE;
}


782 783 784 785
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
  GtkWidget *widget;
786
  GtkMenuShell *submenu; 
787 788 789 790 791 792 793 794 795 796 797 798 799 800 801

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  widget = GTK_WIDGET (menu_item);
  
  if (widget->parent &&
      GTK_IS_MENU_SHELL (widget->parent))
    {
      if (menu_item->submenu == NULL)
	gtk_menu_shell_activate_item (GTK_MENU_SHELL (widget->parent),
				      widget, TRUE);
      else
	{
	  GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget->parent);

802
	  _gtk_menu_shell_activate (menu_shell);
803

804 805 806
	  gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget); 
	  gtk_menu_item_popup_submenu (widget); 

807
	  gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu), FALSE);
808
	  submenu = GTK_MENU_SHELL (menu_item->submenu);
809 810 811
	}
    }
}
812 813
static void
gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
814
					gint        *requisition)
815 816 817 818 819 820 821 822
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  *requisition = 0;
}

static void
gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
823
					 gint         allocation)
824 825 826 827 828
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->toggle_size = allocation;
}
829

Elliot Lee's avatar
Elliot Lee committed
830 831 832
static gint
gtk_menu_item_select_timeout (gpointer data)
{
833
  GtkMenuItem *menu_item;
834
  GtkWidget *parent;
835
  
836
  GDK_THREADS_ENTER ();
837

838
  menu_item = GTK_MENU_ITEM (data);
839 840 841 842 843 844 845 846 847

  parent = GTK_WIDGET (menu_item)->parent;

  if (parent && GTK_IS_MENU_SHELL (parent) && GTK_MENU_SHELL (parent)->active)
    {
      gtk_menu_item_popup_submenu (data);
      if (menu_item->timer_from_keypress && menu_item->submenu)
	GTK_MENU_SHELL (menu_item->submenu)->ignore_enter = TRUE;
    }
848 849 850 851 852 853 854

  GDK_THREADS_LEAVE ();

  return FALSE;  
}

static void
855
gtk_menu_item_popup_submenu (gpointer data)
856 857 858
{
  GtkMenuItem *menu_item;

Elliot Lee's avatar
Elliot Lee committed
859 860 861
  menu_item = GTK_MENU_ITEM (data);
  menu_item->timer = 0;

862
  if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu))
863
    {
864 865 866 867 868 869 870
      gtk_menu_popup (GTK_MENU (menu_item->submenu),
		      GTK_WIDGET (menu_item)->parent,
		      GTK_WIDGET (menu_item),
		      gtk_menu_item_position_menu,
		      menu_item,
		      GTK_MENU_SHELL (GTK_WIDGET (menu_item)->parent)->button,
		      0);
871
    }
Elliot Lee's avatar
Elliot Lee committed
872 873 874 875 876 877
}

static void
gtk_menu_item_position_menu (GtkMenu  *menu,
			     gint     *x,
			     gint     *y,
878
			     gboolean *push_in,
Elliot Lee's avatar
Elliot Lee committed
879 880 881
			     gpointer  user_data)
{
  GtkMenuItem *menu_item;
882
  GtkWidget *widget;
Tim Janik's avatar
Tim Janik committed
883
  GtkWidget *parent_menu_item;
884
  GdkScreen *screen;
Elliot Lee's avatar
Elliot Lee committed
885 886 887 888 889 890 891 892 893 894
  gint screen_width;
  gint screen_height;
  gint twidth, theight;
  gint tx, ty;

  g_return_if_fail (menu != NULL);
  g_return_if_fail (x != NULL);
  g_return_if_fail (y != NULL);

  menu_item = GTK_MENU_ITEM (user_data);
895
  widget = GTK_WIDGET (user_data);
Elliot Lee's avatar
Elliot Lee committed
896 897 898 899

  twidth = GTK_WIDGET (menu)->requisition.width;
  theight = GTK_WIDGET (menu)->requisition.height;

900 901 902
  screen = gtk_widget_get_screen (widget);
  screen_width = gdk_screen_get_width (screen);
  screen_height = gdk_screen_get_height (screen);
Elliot Lee's avatar
Elliot Lee committed
903

904
  if (!gdk_window_get_origin (widget->window, &tx, &ty))
Owen Taylor's avatar
Owen Taylor committed
905 906 907 908
    {
      g_warning ("Menu not on screen");
      return;
    }
Elliot Lee's avatar
Elliot Lee committed
909

910 911 912
  tx += widget->allocation.x;
  ty += widget->allocation.y;

Elliot Lee's avatar
Elliot Lee committed
913 914 915
  switch (menu_item->submenu_placement)
    {
    case GTK_TOP_BOTTOM:
916 917
      if ((ty + widget->allocation.height + theight) <= screen_height)
	ty += widget->allocation.height;
Elliot Lee's avatar
Elliot Lee committed
918 919
      else if ((ty - theight) >= 0)
	ty -= theight;
920 921
      else if (screen_height - (ty + widget->allocation.height) > ty)
	ty += widget->allocation.height;
922 923
      else
	ty -= theight;
Elliot Lee's avatar
Elliot Lee committed
924 925 926 927
      break;

    case GTK_LEFT_RIGHT:
      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
928
      parent_menu_item = GTK_MENU (widget->parent)->parent_menu_item;
Elliot Lee's avatar
Elliot Lee committed
929
      if (parent_menu_item)
Tim Janik's avatar
Tim Janik committed
930
	menu_item->submenu_direction = GTK_MENU_ITEM (parent_menu_item)->submenu_direction;
Elliot Lee's avatar
Elliot Lee committed
931 932 933 934 935 936 937 938 939

      switch (menu_item->submenu_direction)
	{
	case GTK_DIRECTION_LEFT:
	  if ((tx - twidth) >= 0)
	    tx -= twidth;
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
940
	      tx += widget->allocation.width - 5;
Elliot Lee's avatar
Elliot Lee committed
941 942 943 944
	    }
	  break;

	case GTK_DIRECTION_RIGHT:
945 946
	  if ((tx + widget->allocation.width + twidth - 5) <= screen_width)
	    tx += widget->allocation.width - 5;
Elliot Lee's avatar
Elliot Lee committed
947 948 949 950 951 952 953 954
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_LEFT;
	      tx -= twidth;
	    }
	  break;
	}

955
      ty += widget->allocation.height / 4;
956

957 958
      /* If the height of the menu doesn't fit we move it upward. */
      ty = CLAMP (ty, 0, MAX (0, screen_height - theight));
Elliot Lee's avatar
Elliot Lee committed
959 960 961
      break;
    }

962 963
  /* If we have negative, tx, here it is because we can't get
   * the menu all the way on screen. Favor the left portion.
964 965
   */
  *x = CLAMP (tx, 0, MAX (0, screen_width - twidth));
966
  *y = ty;
Elliot Lee's avatar
Elliot Lee committed
967 968
}

969 970 971 972 973 974 975 976 977 978 979 980
/**
 * gtk_menu_item_set_right_justified:
 * @menu_item: a #GtkMenuItem.
 * @right_justified: if %TRUE the menu item will appear at the 
 *   far right if added to a menu bar.
 * 
 * Sets whether the menu item appears justified at the right
 * side of a menu bar. This was traditionally done for "Help" menu
 * items, but is now considered a bad idea. (If the widget
 * layout is reversed for a right-to-left language like Hebrew
 * or Arabic, right-justified-menu-items appear at the left.)
 **/
Elliot Lee's avatar
Elliot Lee committed
981
void
982 983
gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
				   gboolean     right_justified)
Elliot Lee's avatar
Elliot Lee committed
984
{
985 986 987
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  right_justified = right_justified != FALSE;
Elliot Lee's avatar
Elliot Lee committed
988

989 990 991
  if (right_justified != menu_item->right_justify)
    {
      menu_item->right_justify = right_justified;
992
      gtk_widget_queue_resize (GTK_WIDGET (menu_item));
993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
    }
}

/**
 * gtk_menu_item_get_right_justified:
 * @menu_item: a #GtkMenuItem
 * 
 * Gets whether the menu item appears justified at the right
 * side of the menu bar.
 * 
 * Return value: %TRUE if the menu item will appear at the
 *   far right if added to a menu bar.
 **/
gboolean
gtk_menu_item_get_right_justified (GtkMenuItem *menu_item)
{
  g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
  
  return menu_item->right_justify;
Elliot Lee's avatar
Elliot Lee committed
1012
}
1013

1014

1015 1016 1017
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
1018
  GtkMenuItem *menu_item;
1019 1020

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1021

1022 1023
  menu_item = GTK_MENU_ITEM (widget);

1024
  /* show children including submenu */
1025 1026
  if (menu_item->submenu)
    gtk_widget_show_all (menu_item->submenu);
1027 1028
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);

1029 1030 1031 1032 1033 1034
  gtk_widget_show (widget);
}

static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
1035
  GtkMenuItem *menu_item;
1036 1037 1038 1039

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  gtk_widget_hide (widget);
1040 1041 1042 1043 1044

  menu_item = GTK_MENU_ITEM (widget);

  /* hide children including submenu */
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
1045 1046
  if (menu_item->submenu)
    gtk_widget_hide_all (menu_item->submenu);
1047 1048
}

1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069
static void
gtk_menu_item_accel_name_foreach (GtkWidget *widget,
				  gpointer data)
{
  const gchar **path_p = data;

  if (!*path_p)
    {
      if (GTK_IS_LABEL (widget))
	{
	  *path_p = gtk_label_get_text (GTK_LABEL (widget));
	  if (*path_p && (*path_p)[0] == 0)
	    *path_p = NULL;
	}
      else if (GTK_IS_CONTAINER (widget))
	gtk_container_foreach (GTK_CONTAINER (widget),
			       gtk_menu_item_accel_name_foreach,
			       data);
    }
}

1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086
static void
gtk_menu_item_parent_set (GtkWidget *widget,
			  GtkWidget *previous_parent)
{
  GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
  GtkMenu *menu = GTK_IS_MENU (widget->parent) ? GTK_MENU (widget->parent) : NULL;

  if (menu)
    _gtk_menu_item_refresh_accel_path (menu_item,
				       menu->accel_path,
				       menu->accel_group,
				       TRUE);

  if (GTK_WIDGET_CLASS (parent_class)->parent_set)
    GTK_WIDGET_CLASS (parent_class)->parent_set (widget, previous_parent);
}

1087 1088 1089 1090 1091 1092 1093 1094 1095 1096
void
_gtk_menu_item_refresh_accel_path (GtkMenuItem   *menu_item,
				   const gchar   *prefix,
				   GtkAccelGroup *accel_group,
				   gboolean       group_changed)
{
  const gchar *path;
  GtkWidget *widget;

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1097
  g_return_if_fail (!accel_group || GTK_IS_ACCEL_GROUP (accel_group));
1098 1099 1100

  widget = GTK_WIDGET (menu_item);

1101 1102
  if (!accel_group)
    {
1103
      gtk_widget_set_accel_path (widget, NULL, NULL);
1104 1105 1106
      return;
    }

1107
  path = _gtk_widget_get_accel_path (widget, NULL);
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122
  if (!path)					/* no active accel_path yet */
    {
      path = menu_item->accel_path;
      if (!path && prefix)
	{
	  gchar *postfix = NULL;

	  /* try to construct one from label text */
	  gtk_container_foreach (GTK_CONTAINER (menu_item),
				 gtk_menu_item_accel_name_foreach,
				 &postfix);
	  menu_item->accel_path = postfix ? g_strconcat (prefix, "/", postfix, NULL) : NULL;
	  path = menu_item->accel_path;
	}
      if (path)
1123
	gtk_widget_set_accel_path (widget, path, accel_group);
1124 1125
    }
  else if (group_changed)			/* reinstall accelerators */
1126
    gtk_widget_set_accel_path (widget, path, accel_group);
1127 1128 1129 1130 1131
}

/**
 * gtk_menu_item_set_accel_path
 * @menu_item:  a valid #GtkMenuItem
1132 1133
 * @accel_path: accelerator path, corresponding to this menu item's
 *              functionality, or %NULL to unset the current path.
1134 1135 1136 1137 1138 1139 1140 1141
 *
 * Set the accelerator path on @menu_item, through which runtime changes of the
 * menu item's accelerator caused by the user can be identified and saved to
 * persistant storage (see gtk_accel_map_save() on this).
 * To setup a default accelerator for this menu item, call
 * gtk_accel_map_add_entry() with the same @accel_path.
 * See also gtk_accel_map_add_entry() on the specifics of accelerator paths,
 * and gtk_menu_set_accel_path() for a more convenient variant of this function.
1142 1143 1144 1145
 *
 * This function is basically a convenience wrapper that handles calling
 * gtk_widget_set_accel_path() with the appropriate accelerator group for
 * the menu item.
1146 1147 1148 1149 1150 1151 1152 1153
 */
void
gtk_menu_item_set_accel_path (GtkMenuItem *menu_item,
			      const gchar *accel_path)
{
  GtkWidget *widget;

  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
1154 1155
  g_return_if_fail (accel_path == NULL ||
		    (accel_path[0] == '<' && strchr (accel_path, '/')));
1156 1157 1158 1159 1160 1161 1162 1163

  widget = GTK_WIDGET (menu_item);

  /* store new path */
  g_free (menu_item->accel_path);
  menu_item->accel_path = g_strdup (accel_path);

  /* forget accelerators associated with old path */
1164
  gtk_widget_set_accel_path (widget, NULL, NULL);
1165 1166

  /* install accelerators associated with new path */
1167
  if (widget->parent && GTK_IS_MENU (widget->parent))
1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178
    {
      GtkMenu *menu = GTK_MENU (widget->parent);

      if (menu->accel_group)
	_gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
					   NULL,
					   menu->accel_group,
					   FALSE);
    }
}

1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194
static void
gtk_menu_item_forall (GtkContainer *container,
		      gboolean      include_internals,
		      GtkCallback   callback,
		      gpointer      callback_data)
{
  GtkBin *bin;
  GtkMenuItem *menu_item;

  g_return_if_fail (GTK_IS_MENU_ITEM (container));
  g_return_if_fail (callback != NULL);

  bin = GTK_BIN (container);
  menu_item = GTK_MENU_ITEM (container);

  if (bin->child)
1195
    callback (bin->child, callback_data);
1196
}
1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209

gboolean
_gtk_menu_item_is_selectable (GtkWidget *menu_item)
{
  if ((!GTK_BIN (menu_item)->child &&
       G_OBJECT_TYPE (menu_item) == GTK_TYPE_MENU_ITEM) ||
      GTK_IS_SEPARATOR_MENU_ITEM (menu_item) ||
      !GTK_WIDGET_IS_SENSITIVE (menu_item) ||
      !GTK_WIDGET_VISIBLE (menu_item))
    return FALSE;

  return TRUE;
}