gtkmenuitem.c 32.5 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);
Elliot Lee's avatar
Elliot Lee committed
205 206 207 208 209
}

static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
210 211
  GTK_WIDGET_SET_FLAGS (menu_item, GTK_NO_WINDOW);
  
Elliot Lee's avatar
Elliot Lee committed
212 213
  menu_item->submenu = NULL;
  menu_item->toggle_size = 0;
214
  menu_item->accelerator_width = 0;
Elliot Lee's avatar
Elliot Lee committed
215 216 217 218 219 220 221 222 223
  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*
224
gtk_menu_item_new (void)
Elliot Lee's avatar
Elliot Lee committed
225 226 227 228 229 230 231 232
{
  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
233
  GtkWidget *accel_label;
Elliot Lee's avatar
Elliot Lee committed
234 235

  menu_item = gtk_menu_item_new ();
Tim Janik's avatar
Tim Janik committed
236 237
  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
238

Tim Janik's avatar
Tim Janik committed
239 240 241
  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
242 243 244 245

  return menu_item;
}

246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274

/**
 * 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
275 276 277 278 279 280 281 282 283 284
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)
285
    gtk_widget_destroy (menu_item->submenu);
Elliot Lee's avatar
Elliot Lee committed
286

287 288 289 290 291 292 293 294 295 296 297
  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
298 299
}

300 301 302 303 304 305 306 307 308 309 310 311 312 313
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
314 315 316 317 318
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
			   GtkWidget   *submenu)
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
319
  
320
  if (menu_item->submenu != submenu)
Elliot Lee's avatar
Elliot Lee committed
321
    {
322 323
      gtk_menu_item_remove_submenu (menu_item);
      
324
      menu_item->submenu = submenu;
325 326 327 328
      gtk_menu_attach_to_widget (GTK_MENU (submenu),
				 GTK_WIDGET (menu_item),
				 gtk_menu_item_detacher);
      
329 330
      if (GTK_WIDGET (menu_item)->parent)
	gtk_widget_queue_resize (GTK_WIDGET (menu_item));
Elliot Lee's avatar
Elliot Lee committed
331 332 333
    }
}

334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350
/**
 * 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;
}

351 352 353 354 355 356 357 358 359
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));
}

360 361 362
void _gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
				   GtkSubmenuPlacement  placement);

Elliot Lee's avatar
Elliot Lee committed
363
void
Owen Taylor's avatar
Owen Taylor committed
364
_gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
Elliot Lee's avatar
Elliot Lee committed
365 366 367 368 369 370 371 372 373 374
			     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)
{
375 376
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
377 378 379 380 381 382
  gtk_item_select (GTK_ITEM (menu_item));
}

void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
383 384
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
385 386 387 388 389 390
  gtk_item_deselect (GTK_ITEM (menu_item));
}

void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
391 392
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
  
Elliot Lee's avatar
Elliot Lee committed
393 394 395
  gtk_signal_emit (GTK_OBJECT (menu_item), menu_item_signals[ACTIVATE]);
}

396 397
void
gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
398
				   gint        *requisition)
399 400 401 402 403 404 405 406
{
  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,
407
				    gint         allocation)
408 409 410 411 412 413
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

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

414 415 416 417 418 419 420 421 422 423
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
				   gpointer data)
{
  guint *width = data;

  if (GTK_IS_ACCEL_LABEL (widget))
    {
      guint w;

424
      w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
425 426 427 428 429 430 431
      *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
432 433 434 435 436

static void
gtk_menu_item_size_request (GtkWidget      *widget,
			    GtkRequisition *requisition)
{
Tim Janik's avatar
Tim Janik committed
437
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
438
  GtkBin *bin;
439
  guint accel_width;
Elliot Lee's avatar
Elliot Lee committed
440 441 442 443 444

  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
445
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
446 447

  requisition->width = (GTK_CONTAINER (widget)->border_width +
448
			widget->style->xthickness +
Elliot Lee's avatar
Elliot Lee committed
449 450
			BORDER_SPACING) * 2;
  requisition->height = (GTK_CONTAINER (widget)->border_width +
451
			 widget->style->ythickness) * 2;
Elliot Lee's avatar
Elliot Lee committed
452 453 454

  if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
    {
455 456 457
      GtkRequisition child_requisition;
      
      gtk_widget_size_request (bin->child, &child_requisition);
Elliot Lee's avatar
Elliot Lee committed
458

459 460
      requisition->width += child_requisition.width;
      requisition->height += child_requisition.height;
461

462 463 464
      if (menu_item->submenu && menu_item->show_submenu_indicator)
	requisition->width += child_requisition.height;
    }
465 466 467 468 469 470

  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
471 472 473 474 475 476
}

static void
gtk_menu_item_size_allocate (GtkWidget     *widget,
			     GtkAllocation *allocation)
{
Tim Janik's avatar
Tim Janik committed
477
  GtkMenuItem *menu_item;
Elliot Lee's avatar
Elliot Lee committed
478 479 480 481 482 483
  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
484
  menu_item = GTK_MENU_ITEM (widget);
Elliot Lee's avatar
Elliot Lee committed
485
  bin = GTK_BIN (widget);
Tim Janik's avatar
Tim Janik committed
486 487
  
  widget->allocation = *allocation;
Elliot Lee's avatar
Elliot Lee committed
488 489 490 491

  if (bin->child)
    {
      child_allocation.x = (GTK_CONTAINER (widget)->border_width +
492
                            widget->style->xthickness +
Elliot Lee's avatar
Elliot Lee committed
493
			    BORDER_SPACING);
Owen Taylor's avatar
Owen Taylor committed
494
      child_allocation.y = (GTK_CONTAINER (widget)->border_width +
495
			    widget->style->ythickness);
496 497
      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
498
      child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
Tim Janik's avatar
Tim Janik committed
499
      child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
500 501 502
      child_allocation.x += widget->allocation.x;
      child_allocation.y += widget->allocation.y;
      
Tim Janik's avatar
Tim Janik committed
503
      if (menu_item->submenu && menu_item->show_submenu_indicator)
504 505
	child_allocation.width -= child_allocation.height;

Elliot Lee's avatar
Elliot Lee committed
506 507 508
      gtk_widget_size_allocate (bin->child, &child_allocation);
    }

Tim Janik's avatar
Tim Janik committed
509
  if (GTK_WIDGET_REALIZED (widget))
510
    gdk_window_move_resize (menu_item->event_window,
Tim Janik's avatar
Tim Janik committed
511 512
                            allocation->x, allocation->y,
                            allocation->width, allocation->height);
Elliot Lee's avatar
Elliot Lee committed
513

Tim Janik's avatar
Tim Janik committed
514 515
  if (menu_item->submenu)
    gtk_menu_reposition (GTK_MENU (menu_item->submenu));
Elliot Lee's avatar
Elliot Lee committed
516 517
}

518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
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);
570 571

  gdk_window_show (menu_item->event_window);
572 573 574 575 576 577 578 579 580 581 582 583
}

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
584 585 586 587 588 589 590 591 592
static void
gtk_menu_item_paint (GtkWidget    *widget,
		     GdkRectangle *area)
{
  GtkMenuItem *menu_item;
  GtkStateType state_type;
  GtkShadowType shadow_type;
  gint width, height;
  gint x, y;
593
  gint border_width = GTK_CONTAINER (widget)->border_width;
Elliot Lee's avatar
Elliot Lee committed
594 595 596 597 598 599 600

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

      state_type = widget->state;

601 602 603 604
      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;
605
      
Elliot Lee's avatar
Elliot Lee committed
606 607
      if ((state_type == GTK_STATE_PRELIGHT) &&
	  (GTK_BIN (menu_item)->child))
608 609 610 611 612 613
	gtk_paint_box (widget->style,
		       widget->window,
		       GTK_STATE_PRELIGHT,
		       GTK_SHADOW_OUT,
		       area, widget, "menuitem",
		       x, y, width, height);
Elliot Lee's avatar
Elliot Lee committed
614

Tim Janik's avatar
Tim Janik committed
615
      if (menu_item->submenu && menu_item->show_submenu_indicator)
Elliot Lee's avatar
Elliot Lee committed
616
	{
617 618 619 620
	  gint arrow_x, arrow_y;
	  gint arrow_size = height - 2 * widget->style->ythickness;
	  gint arrow_extent = arrow_size / 2;
	  
Elliot Lee's avatar
Elliot Lee committed
621 622 623 624
	  shadow_type = GTK_SHADOW_OUT;
	  if (state_type == GTK_STATE_PRELIGHT)
	    shadow_type = GTK_SHADOW_IN;

625 626 627
	  arrow_x = x + width - 1 - arrow_size + (arrow_size - arrow_extent) / 2;
	  arrow_y = y + (height - arrow_extent) / 2;

628 629 630 631
	  gtk_paint_arrow (widget->style, widget->window,
			   state_type, shadow_type, 
			   area, widget, "menuitem", 
			   GTK_ARROW_RIGHT, TRUE,
632 633
			   arrow_x, arrow_y,
			   arrow_extent, arrow_extent);
Elliot Lee's avatar
Elliot Lee committed
634 635 636
	}
      else if (!GTK_BIN (menu_item)->child)
	{
637 638 639 640
	  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
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655
	}
    }
}

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);

656
      (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
Elliot Lee's avatar
Elliot Lee committed
657 658 659 660 661 662 663 664 665 666 667 668 669 670
    }

  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);

671 672 673
  /*  if (menu_item->submenu && !GTK_WIDGET_VISIBLE (menu_item->submenu))*/
  if (menu_item->submenu)
    {
674 675 676 677
      guint32 etime;
      GdkEvent *event = gtk_get_current_event ();

      etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
678 679
      if (event &&
	  etime >= last_submenu_deselect_time &&
680
	  last_submenu_deselect_time + SELECT_TIMEOUT > etime)
681 682 683 684 685 686 687 688 689 690 691 692
	{
	  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;
	}
693
      else
694
	gtk_menu_item_popup_submenu (menu_item);
695 696
      if (event)
	gdk_event_free(event);
697
    }
698
  
Elliot Lee's avatar
Elliot Lee committed
699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
  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)
    {
714 715 716
      guint32 etime;
      GdkEvent *event = gtk_get_current_event ();

Elliot Lee's avatar
Elliot Lee committed
717
      if (menu_item->timer)
718 719 720 721
	{
	  gtk_timeout_remove (menu_item->timer);
	  menu_item->timer = 0;
	}
Elliot Lee's avatar
Elliot Lee committed
722 723
      else
	gtk_menu_popdown (GTK_MENU (menu_item->submenu));
724 725 726 727

      etime = event ? gdk_event_get_time (event) : GDK_CURRENT_TIME;
      if (etime > last_submenu_deselect_time)
	last_submenu_deselect_time = etime;
728 729
      if (event)
	gdk_event_free(event);
Elliot Lee's avatar
Elliot Lee committed
730 731 732 733 734 735
    }

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

736
static gboolean
737
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
				 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;
}


755 756 757 758
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
  GtkWidget *widget;
759
  GtkMenuShell *submenu; 
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781

  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);

	  if (!menu_shell->active)
	    {
	      gtk_grab_add (GTK_WIDGET (menu_shell));
	      menu_shell->have_grab = TRUE;
	      menu_shell->active = TRUE;
	    }

782 783 784
	  gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget); 
	  gtk_menu_item_popup_submenu (widget); 

785
	  _gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu));
786
	  submenu = GTK_MENU_SHELL (menu_item->submenu);
787 788 789
	}
    }
}
790 791
static void
gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
792
					gint        *requisition)
793 794 795 796 797 798 799 800
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  *requisition = 0;
}

static void
gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
801
					 gint         allocation)
802 803 804 805 806
{
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  menu_item->toggle_size = allocation;
}
807

Elliot Lee's avatar
Elliot Lee committed
808 809 810
static gint
gtk_menu_item_select_timeout (gpointer data)
{
811
  GtkMenuItem *menu_item;
812
  GtkWidget *parent;
813
  
814
  GDK_THREADS_ENTER ();
815

816
  menu_item = GTK_MENU_ITEM (data);
817 818 819 820 821 822 823 824 825

  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;
    }
826 827 828 829 830 831 832

  GDK_THREADS_LEAVE ();

  return FALSE;  
}

static void
833
gtk_menu_item_popup_submenu (gpointer data)
834 835 836
{
  GtkMenuItem *menu_item;

Elliot Lee's avatar
Elliot Lee committed
837 838 839
  menu_item = GTK_MENU_ITEM (data);
  menu_item->timer = 0;

840
  if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu))
841
    {
842 843 844 845 846 847 848
      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);
849
    }
Elliot Lee's avatar
Elliot Lee committed
850 851 852 853 854 855
}

static void
gtk_menu_item_position_menu (GtkMenu  *menu,
			     gint     *x,
			     gint     *y,
856
			     gboolean *push_in,
Elliot Lee's avatar
Elliot Lee committed
857 858 859
			     gpointer  user_data)
{
  GtkMenuItem *menu_item;
860
  GtkWidget *widget;
Tim Janik's avatar
Tim Janik committed
861
  GtkWidget *parent_menu_item;
Elliot Lee's avatar
Elliot Lee committed
862 863 864 865 866 867 868 869 870 871
  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);
872
  widget = GTK_WIDGET (user_data);
Elliot Lee's avatar
Elliot Lee committed
873 874 875 876 877 878 879

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

  screen_width = gdk_screen_width ();
  screen_height = gdk_screen_height ();

880
  if (!gdk_window_get_origin (widget->window, &tx, &ty))
Owen Taylor's avatar
Owen Taylor committed
881 882 883 884
    {
      g_warning ("Menu not on screen");
      return;
    }
Elliot Lee's avatar
Elliot Lee committed
885

886 887 888
  tx += widget->allocation.x;
  ty += widget->allocation.y;

Elliot Lee's avatar
Elliot Lee committed
889 890 891
  switch (menu_item->submenu_placement)
    {
    case GTK_TOP_BOTTOM:
892 893
      if ((ty + widget->allocation.height + theight) <= screen_height)
	ty += widget->allocation.height;
Elliot Lee's avatar
Elliot Lee committed
894 895
      else if ((ty - theight) >= 0)
	ty -= theight;
896 897
      else if (screen_height - (ty + widget->allocation.height) > ty)
	ty += widget->allocation.height;
898 899
      else
	ty -= theight;
Elliot Lee's avatar
Elliot Lee committed
900 901 902 903
      break;

    case GTK_LEFT_RIGHT:
      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
904
      parent_menu_item = GTK_MENU (widget->parent)->parent_menu_item;
Elliot Lee's avatar
Elliot Lee committed
905
      if (parent_menu_item)
Tim Janik's avatar
Tim Janik committed
906
	menu_item->submenu_direction = GTK_MENU_ITEM (parent_menu_item)->submenu_direction;
Elliot Lee's avatar
Elliot Lee committed
907 908 909 910 911 912 913 914 915

      switch (menu_item->submenu_direction)
	{
	case GTK_DIRECTION_LEFT:
	  if ((tx - twidth) >= 0)
	    tx -= twidth;
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
916
	      tx += widget->allocation.width - 5;
Elliot Lee's avatar
Elliot Lee committed
917 918 919 920
	    }
	  break;

	case GTK_DIRECTION_RIGHT:
921 922
	  if ((tx + widget->allocation.width + twidth - 5) <= screen_width)
	    tx += widget->allocation.width - 5;
Elliot Lee's avatar
Elliot Lee committed
923 924 925 926 927 928 929 930
	  else
	    {
	      menu_item->submenu_direction = GTK_DIRECTION_LEFT;
	      tx -= twidth;
	    }
	  break;
	}

931
      ty += widget->allocation.height / 4;
932

933 934
      /* 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
935 936 937
      break;
    }

938 939
  /* If we have negative, tx, here it is because we can't get
   * the menu all the way on screen. Favor the left portion.
940 941
   */
  *x = CLAMP (tx, 0, MAX (0, screen_width - twidth));
942
  *y = ty;
Elliot Lee's avatar
Elliot Lee committed
943 944
}

945 946 947 948 949 950 951 952 953 954 955 956
/**
 * 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
957
void
958 959
gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
				   gboolean     right_justified)
Elliot Lee's avatar
Elliot Lee committed
960
{
961 962 963
  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));

  right_justified = right_justified != FALSE;
Elliot Lee's avatar
Elliot Lee committed
964

965 966 967
  if (right_justified != menu_item->right_justify)
    {
      menu_item->right_justify = right_justified;
968
      gtk_widget_queue_resize (GTK_WIDGET (menu_item));
969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
    }
}

/**
 * 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
988
}
989

990

991 992 993
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
994
  GtkMenuItem *menu_item;
995 996

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
997

998 999
  menu_item = GTK_MENU_ITEM (widget);

1000
  /* show children including submenu */
1001 1002
  if (menu_item->submenu)
    gtk_widget_show_all (menu_item->submenu);
1003 1004
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);

1005 1006 1007 1008 1009 1010
  gtk_widget_show (widget);
}

static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
1011
  GtkMenuItem *menu_item;
1012 1013 1014 1015

  g_return_if_fail (GTK_IS_MENU_ITEM (widget));

  gtk_widget_hide (widget);
1016 1017 1018 1019 1020

  menu_item = GTK_MENU_ITEM (widget);

  /* hide children including submenu */
  gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
1021 1022
  if (menu_item->submenu)
    gtk_widget_hide_all (menu_item->submenu);
1023 1024
}

1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
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);
    }
}

1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062
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);
}

1063 1064 1065 1066 1067 1068 1069 1070 1071 1072
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));
1073
  g_return_if_fail (!accel_group || GTK_IS_ACCEL_GROUP (accel_group));
1074 1075 1076

  widget = GTK_WIDGET (menu_item);

1077 1078
  if (!accel_group)
    {
1079
      gtk_widget_set_accel_path (widget, NULL, NULL);
1080 1081 1082
      return;
    }

1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
  path = _gtk_widget_get_accel_path (widget);
  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)
1099
	gtk_widget_set_accel_path (widget, path, accel_group);
1100 1101
    }
  else if (group_changed)			/* reinstall accelerators */
1102
    gtk_widget_set_accel_path (widget, path, accel_group);
1103 1104 1105 1106 1107
}

/**
 * gtk_menu_item_set_accel_path
 * @menu_item:  a valid #GtkMenuItem
Matthias Clasen's avatar
Matthias Clasen committed
1108
 * @accel_path: accelerator path, corresponding to this menu item's functionality
1109 1110 1111 1112 1113 1114 1115 1116
 *
 * 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.
1117 1118 1119 1120
 *
 * This function is basically a convenience wrapper that handles calling
 * gtk_widget_set_accel_path() with the appropriate accelerator group for
 * the menu item.
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137
 */
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));
  g_return_if_fail (accel_path && accel_path[0] == '<' && strchr (accel_path, '/'));

  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 */
1138
  gtk_widget_set_accel_path (widget, NULL, NULL);
1139 1140

  /* install accelerators associated with new path */
1141
  if (widget->parent && GTK_IS_MENU (widget->parent))
1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152
    {
      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);
    }
}

1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168
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)
1169
    callback (bin->child, callback_data);
1170
}
1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183

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;
}