1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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.
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.
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.
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/.
27 #define GTK_MENU_INTERNALS
29 #include <string.h> /* memset */
30 #include "gdk/gdkkeysyms.h"
31 #include "gtkaccellabel.h"
32 #include "gtkaccelmap.h"
33 #include "gtkbindings.h"
36 #include "gtkmarshalers.h"
38 #include "gtkmenuitem.h"
39 #include "gtktearoffmenuitem.h"
40 #include "gtkwindow.h"
42 #include "gtkvscrollbar.h"
43 #include "gtksettings.h"
44 #include "gtkprivate.h"
49 #define MENU_ITEM_CLASS(w) GTK_MENU_ITEM_GET_CLASS (w)
51 #define DEFAULT_POPUP_DELAY 225
52 #define DEFAULT_POPDOWN_DELAY 1000
54 #define NAVIGATION_REGION_OVERSHOOT 50 /* How much the navigation region
55 * extends below the submenu
58 #define MENU_SCROLL_STEP1 8
59 #define MENU_SCROLL_STEP2 15
60 #define MENU_SCROLL_FAST_ZONE 8
61 #define MENU_SCROLL_TIMEOUT1 50
62 #define MENU_SCROLL_TIMEOUT2 20
64 #define ATTACH_INFO_KEY "gtk-menu-child-attach-info-key"
65 #define ATTACHED_MENUS "gtk-attached-menus"
67 typedef struct _GtkMenuAttachData GtkMenuAttachData;
68 typedef struct _GtkMenuPrivate GtkMenuPrivate;
70 struct _GtkMenuAttachData
72 GtkWidget *attach_widget;
73 GtkMenuDetachFunc detacher;
76 struct _GtkMenuPrivate
78 gboolean seen_item_enter;
80 gboolean have_position;
84 /* info used for the table */
90 /* Cached layout information */
98 GtkStateType lower_arrow_state;
99 GtkStateType upper_arrow_state;
101 gboolean ignore_button_release;
102 gboolean initially_pushed_in;
111 gint effective_left_attach;
112 gint effective_right_attach;
113 gint effective_top_attach;
114 gint effective_bottom_attach;
130 CHILD_PROP_LEFT_ATTACH,
131 CHILD_PROP_RIGHT_ATTACH,
132 CHILD_PROP_TOP_ATTACH,
133 CHILD_PROP_BOTTOM_ATTACH
136 static void gtk_menu_set_property (GObject *object,
140 static void gtk_menu_get_property (GObject *object,
144 static void gtk_menu_set_child_property(GtkContainer *container,
149 static void gtk_menu_get_child_property(GtkContainer *container,
154 static void gtk_menu_destroy (GtkObject *object);
155 static void gtk_menu_finalize (GObject *object);
156 static void gtk_menu_realize (GtkWidget *widget);
157 static void gtk_menu_unrealize (GtkWidget *widget);
158 static void gtk_menu_size_request (GtkWidget *widget,
159 GtkRequisition *requisition);
160 static void gtk_menu_size_allocate (GtkWidget *widget,
161 GtkAllocation *allocation);
162 static void gtk_menu_paint (GtkWidget *widget,
163 GdkEventExpose *expose);
164 static void gtk_menu_show (GtkWidget *widget);
165 static gboolean gtk_menu_expose (GtkWidget *widget,
166 GdkEventExpose *event);
167 static gboolean gtk_menu_key_press (GtkWidget *widget,
169 static gboolean gtk_menu_scroll (GtkWidget *widget,
170 GdkEventScroll *event);
171 static gboolean gtk_menu_button_press (GtkWidget *widget,
172 GdkEventButton *event);
173 static gboolean gtk_menu_button_release (GtkWidget *widget,
174 GdkEventButton *event);
175 static gboolean gtk_menu_motion_notify (GtkWidget *widget,
176 GdkEventMotion *event);
177 static gboolean gtk_menu_enter_notify (GtkWidget *widget,
178 GdkEventCrossing *event);
179 static gboolean gtk_menu_leave_notify (GtkWidget *widget,
180 GdkEventCrossing *event);
181 static void gtk_menu_scroll_to (GtkMenu *menu,
183 static void gtk_menu_grab_notify (GtkWidget *widget,
184 gboolean was_grabbed);
186 static void gtk_menu_stop_scrolling (GtkMenu *menu);
187 static void gtk_menu_remove_scroll_timeout (GtkMenu *menu);
188 static gboolean gtk_menu_scroll_timeout (gpointer data);
189 static gboolean gtk_menu_scroll_timeout_initial (gpointer data);
190 static void gtk_menu_start_scrolling (GtkMenu *menu);
192 static void gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
193 GtkWidget *menu_item);
194 static void gtk_menu_select_item (GtkMenuShell *menu_shell,
195 GtkWidget *menu_item);
196 static void gtk_menu_real_insert (GtkMenuShell *menu_shell,
199 static void gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
201 static void gtk_menu_handle_scrolling (GtkMenu *menu,
206 static void gtk_menu_set_tearoff_hints (GtkMenu *menu,
208 static void gtk_menu_style_set (GtkWidget *widget,
209 GtkStyle *previous_style);
210 static gboolean gtk_menu_focus (GtkWidget *widget,
211 GtkDirectionType direction);
212 static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
213 static void gtk_menu_move_current (GtkMenuShell *menu_shell,
214 GtkMenuDirectionType direction);
215 static void gtk_menu_real_move_scroll (GtkMenu *menu,
218 static void gtk_menu_stop_navigating_submenu (GtkMenu *menu);
219 static gboolean gtk_menu_stop_navigating_submenu_cb (gpointer user_data);
220 static gboolean gtk_menu_navigating_submenu (GtkMenu *menu,
223 static void gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
224 GtkMenuItem *menu_item,
225 GdkEventCrossing *event);
227 static void gtk_menu_deactivate (GtkMenuShell *menu_shell);
228 static void gtk_menu_show_all (GtkWidget *widget);
229 static void gtk_menu_hide_all (GtkWidget *widget);
230 static void gtk_menu_position (GtkMenu *menu);
231 static void gtk_menu_reparent (GtkMenu *menu,
232 GtkWidget *new_parent,
234 static void gtk_menu_remove (GtkContainer *menu,
237 static void gtk_menu_update_title (GtkMenu *menu);
239 static void menu_grab_transfer_window_destroy (GtkMenu *menu);
240 static GdkWindow *menu_grab_transfer_window_get (GtkMenu *menu);
242 static gboolean gtk_menu_real_can_activate_accel (GtkWidget *widget,
244 static void _gtk_menu_refresh_accel_paths (GtkMenu *menu,
245 gboolean group_changed);
247 static const gchar attach_data_key[] = "gtk-menu-attach-data";
249 static guint menu_signals[LAST_SIGNAL] = { 0 };
251 static GtkMenuPrivate *
252 gtk_menu_get_private (GtkMenu *menu)
254 return G_TYPE_INSTANCE_GET_PRIVATE (menu, GTK_TYPE_MENU, GtkMenuPrivate);
257 G_DEFINE_TYPE (GtkMenu, gtk_menu, GTK_TYPE_MENU_SHELL)
260 menu_queue_resize (GtkMenu *menu)
262 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
264 priv->have_layout = FALSE;
265 gtk_widget_queue_resize (GTK_WIDGET (menu));
269 get_attach_info (GtkWidget *child)
271 GObject *object = G_OBJECT (child);
272 AttachInfo *ai = g_object_get_data (object, ATTACH_INFO_KEY);
276 ai = g_new0 (AttachInfo, 1);
277 g_object_set_data_full (object, I_(ATTACH_INFO_KEY), ai, g_free);
284 is_grid_attached (AttachInfo *ai)
286 return (ai->left_attach >= 0 &&
287 ai->right_attach >= 0 &&
288 ai->top_attach >= 0 &&
289 ai->bottom_attach >= 0);
293 menu_ensure_layout (GtkMenu *menu)
295 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
297 if (!priv->have_layout)
299 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
303 gint max_right_attach;
304 gint max_bottom_attach;
306 /* Find extents of gridded portion
308 max_right_attach = 1;
309 max_bottom_attach = 0;
311 for (l = menu_shell->children; l; l = l->next)
313 GtkWidget *child = l->data;
314 AttachInfo *ai = get_attach_info (child);
316 if (is_grid_attached (ai))
318 max_bottom_attach = MAX (max_bottom_attach, ai->bottom_attach);
319 max_right_attach = MAX (max_right_attach, ai->right_attach);
325 row_occupied = g_malloc0 (max_bottom_attach);
327 for (l = menu_shell->children; l; l = l->next)
329 GtkWidget *child = l->data;
330 AttachInfo *ai = get_attach_info (child);
332 if (is_grid_attached (ai))
336 for (i = ai->top_attach; i < ai->bottom_attach; i++)
337 row_occupied[i] = TRUE;
341 /* Lay non-grid-items out in those rows
344 for (l = menu_shell->children; l; l = l->next)
346 GtkWidget *child = l->data;
347 AttachInfo *ai = get_attach_info (child);
349 if (!is_grid_attached (ai))
351 while (current_row < max_bottom_attach && row_occupied[current_row])
354 ai->effective_left_attach = 0;
355 ai->effective_right_attach = max_right_attach;
356 ai->effective_top_attach = current_row;
357 ai->effective_bottom_attach = current_row + 1;
363 ai->effective_left_attach = ai->left_attach;
364 ai->effective_right_attach = ai->right_attach;
365 ai->effective_top_attach = ai->top_attach;
366 ai->effective_bottom_attach = ai->bottom_attach;
370 g_free (row_occupied);
372 priv->n_rows = MAX (current_row, max_bottom_attach);
373 priv->n_columns = max_right_attach;
374 priv->have_layout = TRUE;
380 gtk_menu_get_n_columns (GtkMenu *menu)
382 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
384 menu_ensure_layout (menu);
386 return priv->n_columns;
390 gtk_menu_get_n_rows (GtkMenu *menu)
392 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
394 menu_ensure_layout (menu);
400 get_effective_child_attach (GtkWidget *child,
406 GtkMenu *menu = GTK_MENU (child->parent);
409 menu_ensure_layout (menu);
411 ai = get_attach_info (child);
414 *l = ai->effective_left_attach;
416 *r = ai->effective_right_attach;
418 *t = ai->effective_top_attach;
420 *b = ai->effective_bottom_attach;
425 gtk_menu_class_init (GtkMenuClass *class)
427 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
428 GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
429 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
430 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
431 GtkMenuShellClass *menu_shell_class = GTK_MENU_SHELL_CLASS (class);
432 GtkBindingSet *binding_set;
434 gobject_class->finalize = gtk_menu_finalize;
435 gobject_class->set_property = gtk_menu_set_property;
436 gobject_class->get_property = gtk_menu_get_property;
438 object_class->destroy = gtk_menu_destroy;
440 widget_class->realize = gtk_menu_realize;
441 widget_class->unrealize = gtk_menu_unrealize;
442 widget_class->size_request = gtk_menu_size_request;
443 widget_class->size_allocate = gtk_menu_size_allocate;
444 widget_class->show = gtk_menu_show;
445 widget_class->expose_event = gtk_menu_expose;
446 widget_class->scroll_event = gtk_menu_scroll;
447 widget_class->key_press_event = gtk_menu_key_press;
448 widget_class->button_press_event = gtk_menu_button_press;
449 widget_class->button_release_event = gtk_menu_button_release;
450 widget_class->motion_notify_event = gtk_menu_motion_notify;
451 widget_class->show_all = gtk_menu_show_all;
452 widget_class->hide_all = gtk_menu_hide_all;
453 widget_class->enter_notify_event = gtk_menu_enter_notify;
454 widget_class->leave_notify_event = gtk_menu_leave_notify;
455 widget_class->style_set = gtk_menu_style_set;
456 widget_class->focus = gtk_menu_focus;
457 widget_class->can_activate_accel = gtk_menu_real_can_activate_accel;
458 widget_class->grab_notify = gtk_menu_grab_notify;
460 container_class->remove = gtk_menu_remove;
461 container_class->get_child_property = gtk_menu_get_child_property;
462 container_class->set_child_property = gtk_menu_set_child_property;
464 menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
465 menu_shell_class->deactivate = gtk_menu_deactivate;
466 menu_shell_class->select_item = gtk_menu_select_item;
467 menu_shell_class->insert = gtk_menu_real_insert;
468 menu_shell_class->get_popup_delay = gtk_menu_get_popup_delay;
469 menu_shell_class->move_current = gtk_menu_move_current;
471 menu_signals[MOVE_SCROLL] =
472 _gtk_binding_signal_new (I_("move_scroll"),
473 G_OBJECT_CLASS_TYPE (object_class),
474 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
475 G_CALLBACK (gtk_menu_real_move_scroll),
477 _gtk_marshal_VOID__ENUM,
479 GTK_TYPE_SCROLL_TYPE);
481 g_object_class_install_property (gobject_class,
483 g_param_spec_string ("tearoff-title",
485 P_("A title that may be displayed by the window manager when this menu is torn-off"),
487 GTK_PARAM_READWRITE));
490 * GtkMenu:tearoff-state:
492 * A boolean that indicates whether the menu is torn-off.
496 g_object_class_install_property (gobject_class,
498 g_param_spec_boolean ("tearoff-state",
500 P_("A boolean that indicates whether the menu is torn-off"),
502 GTK_PARAM_READWRITE));
504 gtk_widget_class_install_style_property (widget_class,
505 g_param_spec_int ("vertical-padding",
506 P_("Vertical Padding"),
507 P_("Extra space at the top and bottom of the menu"),
511 GTK_PARAM_READABLE));
513 gtk_widget_class_install_style_property (widget_class,
514 g_param_spec_int ("horizontal-padding",
515 P_("Horizontal Padding"),
516 P_("Extra space at the left and right edges of the menu"),
520 GTK_PARAM_READABLE));
522 gtk_widget_class_install_style_property (widget_class,
523 g_param_spec_int ("vertical-offset",
524 P_("Vertical Offset"),
525 P_("When the menu is a submenu, position it this number of pixels offset vertically"),
529 GTK_PARAM_READABLE));
531 gtk_widget_class_install_style_property (widget_class,
532 g_param_spec_int ("horizontal-offset",
533 P_("Horizontal Offset"),
534 P_("When the menu is a submenu, position it this number of pixels offset horizontally"),
538 GTK_PARAM_READABLE));
540 gtk_widget_class_install_style_property (widget_class,
541 g_param_spec_boolean ("double-arrows",
543 P_("When scrolling, always show both arrows."),
545 GTK_PARAM_READABLE));
548 gtk_container_class_install_child_property (container_class,
549 CHILD_PROP_LEFT_ATTACH,
550 g_param_spec_int ("left-attach",
552 P_("The column number to attach the left side of the child to"),
554 GTK_PARAM_READWRITE));
556 gtk_container_class_install_child_property (container_class,
557 CHILD_PROP_RIGHT_ATTACH,
558 g_param_spec_int ("right-attach",
560 P_("The column number to attach the right side of the child to"),
562 GTK_PARAM_READWRITE));
564 gtk_container_class_install_child_property (container_class,
565 CHILD_PROP_TOP_ATTACH,
566 g_param_spec_int ("top-attach",
568 P_("The row number to attach the top of the child to"),
570 GTK_PARAM_READWRITE));
572 gtk_container_class_install_child_property (container_class,
573 CHILD_PROP_BOTTOM_ATTACH,
574 g_param_spec_int ("bottom-attach",
576 P_("The row number to attach the bottom of the child to"),
578 GTK_PARAM_READWRITE));
580 binding_set = gtk_binding_set_by_class (class);
581 gtk_binding_entry_add_signal (binding_set,
583 I_("move_current"), 1,
584 GTK_TYPE_MENU_DIRECTION_TYPE,
586 gtk_binding_entry_add_signal (binding_set,
589 GTK_TYPE_MENU_DIRECTION_TYPE,
591 gtk_binding_entry_add_signal (binding_set,
594 GTK_TYPE_MENU_DIRECTION_TYPE,
596 gtk_binding_entry_add_signal (binding_set,
599 GTK_TYPE_MENU_DIRECTION_TYPE,
601 gtk_binding_entry_add_signal (binding_set,
604 GTK_TYPE_MENU_DIRECTION_TYPE,
605 GTK_MENU_DIR_PARENT);
606 gtk_binding_entry_add_signal (binding_set,
609 GTK_TYPE_MENU_DIRECTION_TYPE,
610 GTK_MENU_DIR_PARENT);
611 gtk_binding_entry_add_signal (binding_set,
614 GTK_TYPE_MENU_DIRECTION_TYPE,
616 gtk_binding_entry_add_signal (binding_set,
619 GTK_TYPE_MENU_DIRECTION_TYPE,
621 gtk_binding_entry_add_signal (binding_set,
624 GTK_TYPE_SCROLL_TYPE,
626 gtk_binding_entry_add_signal (binding_set,
629 GTK_TYPE_SCROLL_TYPE,
631 gtk_binding_entry_add_signal (binding_set,
634 GTK_TYPE_SCROLL_TYPE,
636 gtk_binding_entry_add_signal (binding_set,
639 GTK_TYPE_SCROLL_TYPE,
641 gtk_binding_entry_add_signal (binding_set,
644 GTK_TYPE_SCROLL_TYPE,
646 gtk_binding_entry_add_signal (binding_set,
649 GTK_TYPE_SCROLL_TYPE,
651 gtk_binding_entry_add_signal (binding_set,
654 GTK_TYPE_SCROLL_TYPE,
655 GTK_SCROLL_PAGE_DOWN);
656 gtk_binding_entry_add_signal (binding_set,
659 GTK_TYPE_SCROLL_TYPE,
660 GTK_SCROLL_PAGE_DOWN);
662 gtk_settings_install_property (g_param_spec_boolean ("gtk-can-change-accels",
663 P_("Can change accelerators"),
664 P_("Whether menu accelerators can be changed by pressing a key over the menu item"),
666 GTK_PARAM_READWRITE));
668 gtk_settings_install_property (g_param_spec_int ("gtk-menu-popup-delay",
669 P_("Delay before submenus appear"),
670 P_("Minimum time the pointer must stay over a menu item before the submenu appear"),
674 GTK_PARAM_READWRITE));
676 gtk_settings_install_property (g_param_spec_int ("gtk-menu-popdown-delay",
677 P_("Delay before hiding a submenu"),
678 P_("The time before hiding a submenu when the pointer is moving towards the submenu"),
681 DEFAULT_POPDOWN_DELAY,
682 GTK_PARAM_READWRITE));
684 g_type_class_add_private (gobject_class, sizeof (GtkMenuPrivate));
689 gtk_menu_set_property (GObject *object,
696 menu = GTK_MENU (object);
700 case PROP_TEAROFF_STATE:
701 gtk_menu_set_tearoff_state (menu, g_value_get_boolean (value));
703 case PROP_TEAROFF_TITLE:
704 gtk_menu_set_title (menu, g_value_get_string (value));
707 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
713 gtk_menu_get_property (GObject *object,
720 menu = GTK_MENU (object);
724 case PROP_TEAROFF_STATE:
725 g_value_set_boolean (value, gtk_menu_get_tearoff_state (menu));
727 case PROP_TEAROFF_TITLE:
728 g_value_set_string (value, gtk_menu_get_title (menu));
731 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
737 gtk_menu_set_child_property (GtkContainer *container,
743 GtkMenu *menu = GTK_MENU (container);
744 AttachInfo *ai = get_attach_info (child);
748 case CHILD_PROP_LEFT_ATTACH:
749 ai->left_attach = g_value_get_int (value);
751 case CHILD_PROP_RIGHT_ATTACH:
752 ai->right_attach = g_value_get_int (value);
754 case CHILD_PROP_TOP_ATTACH:
755 ai->top_attach = g_value_get_int (value);
757 case CHILD_PROP_BOTTOM_ATTACH:
758 ai->bottom_attach = g_value_get_int (value);
762 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
766 menu_queue_resize (menu);
770 gtk_menu_get_child_property (GtkContainer *container,
776 AttachInfo *ai = get_attach_info (child);
780 case CHILD_PROP_LEFT_ATTACH:
781 g_value_set_int (value, ai->left_attach);
783 case CHILD_PROP_RIGHT_ATTACH:
784 g_value_set_int (value, ai->right_attach);
786 case CHILD_PROP_TOP_ATTACH:
787 g_value_set_int (value, ai->top_attach);
789 case CHILD_PROP_BOTTOM_ATTACH:
790 g_value_set_int (value, ai->bottom_attach);
794 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
800 gtk_menu_window_event (GtkWidget *window,
804 gboolean handled = FALSE;
806 g_object_ref (window);
812 case GDK_KEY_RELEASE:
813 handled = gtk_widget_event (menu, event);
819 g_object_unref (window);
820 g_object_unref (menu);
826 gtk_menu_window_size_request (GtkWidget *window,
827 GtkRequisition *requisition,
830 GtkMenuPrivate *private = gtk_menu_get_private (menu);
832 if (private->have_position)
834 GdkScreen *screen = gtk_widget_get_screen (window);
835 GdkRectangle monitor;
837 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
839 if (private->y + requisition->height > monitor.y + monitor.height)
840 requisition->height = monitor.y + monitor.height - private->y;
842 if (private->y < monitor.y)
843 requisition->height -= monitor.y - private->y;
848 gtk_menu_init (GtkMenu *menu)
850 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
852 menu->parent_menu_item = NULL;
853 menu->old_active_menu_item = NULL;
854 menu->accel_group = NULL;
855 menu->position_func = NULL;
856 menu->position_func_data = NULL;
857 menu->toggle_size = 0;
859 menu->toplevel = g_object_connect (g_object_new (GTK_TYPE_WINDOW,
860 "type", GTK_WINDOW_POPUP,
863 "signal::event", gtk_menu_window_event, menu,
864 "signal::size_request", gtk_menu_window_size_request, menu,
865 "signal::destroy", gtk_widget_destroyed, &menu->toplevel,
867 gtk_window_set_resizable (GTK_WINDOW (menu->toplevel), FALSE);
868 gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->toplevel), 0);
870 /* Refloat the menu, so that reference counting for the menu isn't
871 * affected by it being a child of the toplevel
873 g_object_force_floating (G_OBJECT (menu));
874 menu->needs_destruction_ref_count = TRUE;
876 menu->view_window = NULL;
877 menu->bin_window = NULL;
879 menu->scroll_offset = 0;
880 menu->scroll_step = 0;
881 menu->timeout_id = 0;
882 menu->scroll_fast = FALSE;
884 menu->tearoff_window = NULL;
885 menu->tearoff_hbox = NULL;
886 menu->torn_off = FALSE;
887 menu->tearoff_active = FALSE;
888 menu->tearoff_adjustment = NULL;
889 menu->tearoff_scrollbar = NULL;
891 menu->upper_arrow_visible = FALSE;
892 menu->lower_arrow_visible = FALSE;
893 menu->upper_arrow_prelight = FALSE;
894 menu->lower_arrow_prelight = FALSE;
896 priv->upper_arrow_state = GTK_STATE_NORMAL;
897 priv->lower_arrow_state = GTK_STATE_NORMAL;
899 priv->have_layout = FALSE;
903 gtk_menu_destroy (GtkObject *object)
906 GtkMenuAttachData *data;
907 GtkMenuPrivate *priv;
909 g_return_if_fail (GTK_IS_MENU (object));
911 menu = GTK_MENU (object);
913 gtk_menu_stop_scrolling (menu);
915 data = g_object_get_data (G_OBJECT (object), attach_data_key);
917 gtk_menu_detach (menu);
919 gtk_menu_stop_navigating_submenu (menu);
921 if (menu->old_active_menu_item)
923 g_object_unref (menu->old_active_menu_item);
924 menu->old_active_menu_item = NULL;
927 /* Add back the reference count for being a child */
928 if (menu->needs_destruction_ref_count)
930 menu->needs_destruction_ref_count = FALSE;
931 g_object_ref (object);
934 if (menu->accel_group)
936 g_object_unref (menu->accel_group);
937 menu->accel_group = NULL;
941 gtk_widget_destroy (menu->toplevel);
943 if (menu->tearoff_window)
944 gtk_widget_destroy (menu->tearoff_window);
946 priv = gtk_menu_get_private (menu);
950 g_free (priv->heights);
951 priv->heights = NULL;
956 g_free (priv->title);
960 GTK_OBJECT_CLASS (gtk_menu_parent_class)->destroy (object);
964 gtk_menu_finalize (GObject *object)
966 GtkMenu *menu = GTK_MENU (object);
968 g_free (menu->accel_path);
970 G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
974 menu_change_screen (GtkMenu *menu,
975 GdkScreen *new_screen)
977 GtkMenuPrivate *private = gtk_menu_get_private (menu);
979 if (gtk_widget_has_screen (GTK_WIDGET (menu)))
981 if (new_screen == gtk_widget_get_screen (GTK_WIDGET (menu)))
987 gtk_window_set_screen (GTK_WINDOW (menu->tearoff_window), new_screen);
988 gtk_menu_position (menu);
991 gtk_window_set_screen (GTK_WINDOW (menu->toplevel), new_screen);
992 private->monitor_num = -1;
996 attach_widget_screen_changed (GtkWidget *attach_widget,
997 GdkScreen *previous_screen,
1000 if (gtk_widget_has_screen (attach_widget) &&
1001 !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1003 menu_change_screen (menu, gtk_widget_get_screen (attach_widget));
1008 gtk_menu_attach_to_widget (GtkMenu *menu,
1009 GtkWidget *attach_widget,
1010 GtkMenuDetachFunc detacher)
1012 GtkMenuAttachData *data;
1015 g_return_if_fail (GTK_IS_MENU (menu));
1016 g_return_if_fail (GTK_IS_WIDGET (attach_widget));
1018 /* keep this function in sync with gtk_widget_set_parent()
1021 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1024 g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
1025 g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
1029 g_object_ref_sink (menu);
1031 data = g_new (GtkMenuAttachData, 1);
1032 data->attach_widget = attach_widget;
1034 g_signal_connect (attach_widget, "screen_changed",
1035 G_CALLBACK (attach_widget_screen_changed), menu);
1036 attach_widget_screen_changed (attach_widget, NULL, menu);
1038 data->detacher = detacher;
1039 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
1040 list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
1041 if (!g_list_find (list, menu))
1043 list = g_list_prepend (list, menu);
1045 g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1047 if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL)
1048 gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL);
1050 /* we don't need to set the style here, since
1051 * we are a toplevel widget.
1054 /* Fallback title for menu comes from attach widget */
1055 gtk_menu_update_title (menu);
1059 gtk_menu_get_attach_widget (GtkMenu *menu)
1061 GtkMenuAttachData *data;
1063 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1065 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1067 return data->attach_widget;
1072 gtk_menu_detach (GtkMenu *menu)
1074 GtkMenuAttachData *data;
1077 g_return_if_fail (GTK_IS_MENU (menu));
1079 /* keep this function in sync with gtk_widget_unparent()
1081 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1084 g_warning ("gtk_menu_detach(): menu is not attached");
1087 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
1089 g_signal_handlers_disconnect_by_func (data->attach_widget,
1090 (gpointer) attach_widget_screen_changed,
1094 data->detacher (data->attach_widget, menu);
1095 list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
1096 list = g_list_remove (list, menu);
1098 g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1100 g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
1102 if (GTK_WIDGET_REALIZED (menu))
1103 gtk_widget_unrealize (GTK_WIDGET (menu));
1107 /* Fallback title for menu comes from attach widget */
1108 gtk_menu_update_title (menu);
1110 g_object_unref (menu);
1114 gtk_menu_remove (GtkContainer *container,
1119 g_return_if_fail (GTK_IS_MENU (container));
1120 g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1122 menu = GTK_MENU (container);
1124 /* Clear out old_active_menu_item if it matches the item we are removing
1126 if (menu->old_active_menu_item == widget)
1128 g_object_unref (menu->old_active_menu_item);
1129 menu->old_active_menu_item = NULL;
1132 GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
1133 g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
1135 menu_queue_resize (menu);
1141 return g_object_new (GTK_TYPE_MENU, NULL);
1145 gtk_menu_real_insert (GtkMenuShell *menu_shell,
1149 GtkMenu *menu = GTK_MENU (menu_shell);
1150 AttachInfo *ai = get_attach_info (child);
1152 ai->left_attach = -1;
1153 ai->right_attach = -1;
1154 ai->top_attach = -1;
1155 ai->bottom_attach = -1;
1157 if (GTK_WIDGET_REALIZED (menu_shell))
1158 gtk_widget_set_parent_window (child, menu->bin_window);
1160 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
1162 menu_queue_resize (menu);
1166 gtk_menu_tearoff_bg_copy (GtkMenu *menu)
1171 widget = GTK_WIDGET (menu);
1177 GdkGCValues gc_values;
1179 menu->tearoff_active = FALSE;
1180 menu->saved_scroll_offset = menu->scroll_offset;
1182 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
1183 gc = gdk_gc_new_with_values (widget->window,
1184 &gc_values, GDK_GC_SUBWINDOW);
1186 gdk_drawable_get_size (menu->tearoff_window->window, &width, &height);
1188 pixmap = gdk_pixmap_new (menu->tearoff_window->window,
1193 gdk_draw_drawable (pixmap, gc,
1194 menu->tearoff_window->window,
1195 0, 0, 0, 0, -1, -1);
1196 g_object_unref (gc);
1198 gtk_widget_set_size_request (menu->tearoff_window,
1202 gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE);
1203 g_object_unref (pixmap);
1208 popup_grab_on_window (GdkWindow *window,
1209 guint32 activate_time,
1210 gboolean grab_keyboard)
1212 if ((gdk_pointer_grab (window, TRUE,
1213 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1214 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
1215 GDK_POINTER_MOTION_MASK,
1216 NULL, NULL, activate_time) == 0))
1218 if (!grab_keyboard ||
1219 gdk_keyboard_grab (window, TRUE,
1220 activate_time) == 0)
1224 gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
1235 * @menu: a #GtkMenu.
1236 * @parent_menu_shell: the menu shell containing the triggering menu item, or %NULL
1237 * @parent_menu_item: the menu item whose activation triggered the popup, or %NULL
1238 * @func: a user supplied function used to position the menu, or %NULL
1239 * @data: user supplied data to be passed to @func.
1240 * @button: the mouse button which was pressed to initiate the event.
1241 * @activate_time: the time at which the activation event occurred.
1243 * Displays a menu and makes it available for selection. Applications can use
1244 * this function to display context-sensitive menus, and will typically supply
1245 * %NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
1246 * parameters. The default menu positioning function will position the menu
1247 * at the current mouse cursor position.
1249 * The @button parameter should be the mouse button pressed to initiate
1250 * the menu popup. If the menu popup was initiated by something other than
1251 * a mouse button press, such as a mouse button release or a keypress,
1252 * @button should be 0.
1254 * The @activate_time parameter should be the time stamp of the event that
1255 * initiated the popup. If such an event is not available, use
1256 * gtk_get_current_event_time() instead.
1260 gtk_menu_popup (GtkMenu *menu,
1261 GtkWidget *parent_menu_shell,
1262 GtkWidget *parent_menu_item,
1263 GtkMenuPositionFunc func,
1266 guint32 activate_time)
1269 GtkWidget *xgrab_shell;
1271 GdkEvent *current_event;
1272 GtkMenuShell *menu_shell;
1273 gboolean grab_keyboard;
1274 GtkMenuPrivate *priv;
1275 GtkWidget *parent_toplevel;
1277 g_return_if_fail (GTK_IS_MENU (menu));
1279 widget = GTK_WIDGET (menu);
1280 menu_shell = GTK_MENU_SHELL (menu);
1281 priv = gtk_menu_get_private (menu);
1283 menu_shell->parent_menu_shell = parent_menu_shell;
1285 priv->seen_item_enter = FALSE;
1287 /* Find the last viewable ancestor, and make an X grab on it
1289 parent = GTK_WIDGET (menu);
1293 gboolean viewable = TRUE;
1294 GtkWidget *tmp = parent;
1298 if (!GTK_WIDGET_MAPPED (tmp))
1307 xgrab_shell = parent;
1309 parent = GTK_MENU_SHELL (parent)->parent_menu_shell;
1312 /* We want to receive events generated when we map the menu; unfortunately,
1313 * since there is probably already an implicit grab in place from the
1314 * button that the user used to pop up the menu, we won't receive then --
1315 * in particular, the EnterNotify when the menu pops up under the pointer.
1317 * If we are grabbing on a parent menu shell, no problem; just grab on
1318 * that menu shell first before popping up the window with owner_events = TRUE.
1320 * When grabbing on the menu itself, things get more convuluted - we
1321 * we do an explicit grab on a specially created window with
1322 * owner_events = TRUE, which we override further down with a grab
1323 * on the menu. (We can't grab on the menu until it is mapped; we
1324 * probably could just leave the grab on the other window, with a
1325 * little reorganization of the code in gtkmenu*).
1327 grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
1328 gtk_window_set_accept_focus (GTK_WINDOW (menu->toplevel), grab_keyboard);
1330 if (xgrab_shell && xgrab_shell != widget)
1332 if (popup_grab_on_window (xgrab_shell->window, activate_time, grab_keyboard))
1333 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1337 GdkWindow *transfer_window;
1339 xgrab_shell = widget;
1340 transfer_window = menu_grab_transfer_window_get (menu);
1341 if (popup_grab_on_window (transfer_window, activate_time, grab_keyboard))
1342 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1345 if (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)
1347 /* We failed to make our pointer/keyboard grab. Rather than leaving the user
1348 * with a stuck up window, we just abort here. Presumably the user will
1351 menu_shell->parent_menu_shell = NULL;
1352 menu_grab_transfer_window_destroy (menu);
1356 menu_shell->active = TRUE;
1357 menu_shell->button = button;
1359 /* If we are popping up the menu from something other than, a button
1360 * press then, as a heuristic, we ignore enter events for the menu
1361 * until we get a MOTION_NOTIFY.
1364 current_event = gtk_get_current_event ();
1367 if ((current_event->type != GDK_BUTTON_PRESS) &&
1368 (current_event->type != GDK_ENTER_NOTIFY))
1369 menu_shell->ignore_enter = TRUE;
1371 gdk_event_free (current_event);
1374 menu_shell->ignore_enter = TRUE;
1378 gtk_menu_tearoff_bg_copy (menu);
1380 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1383 parent_toplevel = NULL;
1384 if (parent_menu_shell)
1385 parent_toplevel = gtk_widget_get_toplevel (parent_menu_shell);
1386 else if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1388 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
1390 parent_toplevel = gtk_widget_get_toplevel (attach_widget);
1393 /* Set transient for to get the right window group and parent relationship */
1394 if (parent_toplevel && GTK_IS_WINDOW (parent_toplevel))
1395 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel),
1396 GTK_WINDOW (parent_toplevel));
1398 menu->parent_menu_item = parent_menu_item;
1399 menu->position_func = func;
1400 menu->position_func_data = data;
1401 menu_shell->activate_time = activate_time;
1403 /* We need to show the menu here rather in the init function because
1404 * code expects to be able to tell if the menu is onscreen by
1405 * looking at the GTK_WIDGET_VISIBLE (menu)
1407 gtk_widget_show (GTK_WIDGET (menu));
1409 /* Position the menu, possibly changing the size request
1411 gtk_menu_position (menu);
1413 /* Compute the size of the toplevel and realize it so we
1414 * can scroll correctly.
1417 GtkRequisition tmp_request;
1418 GtkAllocation tmp_allocation = { 0, };
1420 gtk_widget_size_request (menu->toplevel, &tmp_request);
1422 tmp_allocation.width = tmp_request.width;
1423 tmp_allocation.height = tmp_request.height;
1425 gtk_widget_size_allocate (menu->toplevel, &tmp_allocation);
1427 gtk_widget_realize (GTK_WIDGET (menu));
1430 gtk_menu_scroll_to (menu, menu->scroll_offset);
1432 /* Once everything is set up correctly, map the toplevel window on
1435 gtk_widget_show (menu->toplevel);
1437 if (xgrab_shell == widget)
1438 popup_grab_on_window (widget->window, activate_time, grab_keyboard); /* Should always succeed */
1439 gtk_grab_add (GTK_WIDGET (menu));
1443 gtk_menu_popdown (GtkMenu *menu)
1445 GtkMenuPrivate *private;
1446 GtkMenuShell *menu_shell;
1448 g_return_if_fail (GTK_IS_MENU (menu));
1450 menu_shell = GTK_MENU_SHELL (menu);
1451 private = gtk_menu_get_private (menu);
1453 menu_shell->parent_menu_shell = NULL;
1454 menu_shell->active = FALSE;
1455 menu_shell->ignore_enter = FALSE;
1457 private->have_position = FALSE;
1459 gtk_menu_stop_scrolling (menu);
1461 gtk_menu_stop_navigating_submenu (menu);
1463 if (menu_shell->active_menu_item)
1465 if (menu->old_active_menu_item)
1466 g_object_unref (menu->old_active_menu_item);
1467 menu->old_active_menu_item = menu_shell->active_menu_item;
1468 g_object_ref (menu->old_active_menu_item);
1471 gtk_menu_shell_deselect (menu_shell);
1473 /* The X Grab, if present, will automatically be removed when we hide
1475 gtk_widget_hide (menu->toplevel);
1476 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel), NULL);
1480 gtk_widget_set_size_request (menu->tearoff_window, -1, -1);
1482 if (GTK_BIN (menu->toplevel)->child)
1484 gtk_menu_reparent (menu, menu->tearoff_hbox, TRUE);
1488 /* We popped up the menu from the tearoff, so we need to
1489 * release the grab - we aren't actually hiding the menu.
1491 if (menu_shell->have_xgrab)
1493 GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu));
1495 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1496 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1500 /* gtk_menu_popdown is called each time a menu item is selected from
1501 * a torn off menu. Only scroll back to the saved position if the
1502 * non-tearoff menu was popped down.
1504 if (!menu->tearoff_active)
1505 gtk_menu_scroll_to (menu, menu->saved_scroll_offset);
1506 menu->tearoff_active = TRUE;
1509 gtk_widget_hide (GTK_WIDGET (menu));
1511 menu_shell->have_xgrab = FALSE;
1512 gtk_grab_remove (GTK_WIDGET (menu));
1514 menu_grab_transfer_window_destroy (menu);
1518 gtk_menu_get_active (GtkMenu *menu)
1523 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1525 if (!menu->old_active_menu_item)
1528 children = GTK_MENU_SHELL (menu)->children;
1532 child = children->data;
1533 children = children->next;
1535 if (GTK_BIN (child)->child)
1540 menu->old_active_menu_item = child;
1541 if (menu->old_active_menu_item)
1542 g_object_ref (menu->old_active_menu_item);
1545 return menu->old_active_menu_item;
1549 gtk_menu_set_active (GtkMenu *menu,
1555 g_return_if_fail (GTK_IS_MENU (menu));
1557 tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
1560 child = tmp_list->data;
1561 if (GTK_BIN (child)->child)
1563 if (menu->old_active_menu_item)
1564 g_object_unref (menu->old_active_menu_item);
1565 menu->old_active_menu_item = child;
1566 g_object_ref (menu->old_active_menu_item);
1572 gtk_menu_set_accel_group (GtkMenu *menu,
1573 GtkAccelGroup *accel_group)
1575 g_return_if_fail (GTK_IS_MENU (menu));
1577 if (menu->accel_group != accel_group)
1579 if (menu->accel_group)
1580 g_object_unref (menu->accel_group);
1581 menu->accel_group = accel_group;
1582 if (menu->accel_group)
1583 g_object_ref (menu->accel_group);
1584 _gtk_menu_refresh_accel_paths (menu, TRUE);
1589 gtk_menu_get_accel_group (GtkMenu *menu)
1591 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1593 return menu->accel_group;
1597 gtk_menu_real_can_activate_accel (GtkWidget *widget,
1600 /* Menu items chain here to figure whether they can activate their
1601 * accelerators. Unlike ordinary widgets, menus allow accel
1602 * activation even if invisible since that's the usual case for
1603 * submenus/popup-menus. however, the state of the attach widget
1604 * affects the "activeness" of the menu.
1606 GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
1609 return gtk_widget_can_activate_accel (awidget, signal_id);
1611 return GTK_WIDGET_IS_SENSITIVE (widget);
1615 * gtk_menu_set_accel_path
1616 * @menu: a valid #GtkMenu
1617 * @accel_path: a valid accelerator path
1619 * Sets an accelerator path for this menu from which accelerator paths
1620 * for its immediate children, its menu items, can be constructed.
1621 * The main purpose of this function is to spare the programmer the
1622 * inconvenience of having to call gtk_menu_item_set_accel_path() on
1623 * each menu item that should support runtime user changable accelerators.
1624 * Instead, by just calling gtk_menu_set_accel_path() on their parent,
1625 * each menu item of this menu, that contains a label describing its purpose,
1626 * automatically gets an accel path assigned. For example, a menu containing
1627 * menu items "New" and "Exit", will, after
1628 * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
1629 * has been called, assign its items the accel paths:
1630 * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
1631 * Assigning accel paths to menu items then enables the user to change
1632 * their accelerators at runtime. More details about accelerator paths
1633 * and their default setups can be found at gtk_accel_map_add_entry().
1636 gtk_menu_set_accel_path (GtkMenu *menu,
1637 const gchar *accel_path)
1639 g_return_if_fail (GTK_IS_MENU (menu));
1641 g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
1643 g_free (menu->accel_path);
1644 menu->accel_path = g_strdup (accel_path);
1645 if (menu->accel_path)
1646 _gtk_menu_refresh_accel_paths (menu, FALSE);
1651 gboolean group_changed;
1655 refresh_accel_paths_foreach (GtkWidget *widget,
1658 AccelPropagation *prop = data;
1660 if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
1661 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
1662 prop->menu->accel_path,
1663 prop->menu->accel_group,
1664 prop->group_changed);
1668 _gtk_menu_refresh_accel_paths (GtkMenu *menu,
1669 gboolean group_changed)
1671 g_return_if_fail (GTK_IS_MENU (menu));
1673 if (menu->accel_path && menu->accel_group)
1675 AccelPropagation prop;
1678 prop.group_changed = group_changed;
1679 gtk_container_foreach (GTK_CONTAINER (menu),
1680 refresh_accel_paths_foreach,
1686 gtk_menu_reposition (GtkMenu *menu)
1688 g_return_if_fail (GTK_IS_MENU (menu));
1690 if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off)
1691 gtk_menu_position (menu);
1695 gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
1698 g_return_if_fail (GTK_IS_MENU (menu));
1700 if (adjustment->value != menu->scroll_offset)
1701 gtk_menu_scroll_to (menu, adjustment->value);
1705 gtk_menu_set_tearoff_hints (GtkMenu *menu,
1708 GdkGeometry geometry_hints;
1710 if (!menu->tearoff_window)
1713 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
1715 gtk_widget_size_request (menu->tearoff_scrollbar, NULL);
1716 width += menu->tearoff_scrollbar->requisition.width;
1719 geometry_hints.min_width = width;
1720 geometry_hints.max_width = width;
1722 geometry_hints.min_height = 0;
1723 geometry_hints.max_height = GTK_WIDGET (menu)->requisition.height;
1725 gtk_window_set_geometry_hints (GTK_WINDOW (menu->tearoff_window),
1728 GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
1732 gtk_menu_update_title (GtkMenu *menu)
1734 if (menu->tearoff_window)
1737 GtkWidget *attach_widget;
1739 title = gtk_menu_get_title (menu);
1742 attach_widget = gtk_menu_get_attach_widget (menu);
1743 if (GTK_IS_MENU_ITEM (attach_widget))
1745 GtkWidget *child = GTK_BIN (attach_widget)->child;
1746 if (GTK_IS_LABEL (child))
1747 title = gtk_label_get_text (GTK_LABEL (child));
1752 gtk_window_set_title (GTK_WINDOW (menu->tearoff_window), title);
1757 gtk_menu_get_toplevel (GtkWidget *menu)
1759 GtkWidget *attach, *toplevel;
1761 attach = gtk_menu_get_attach_widget (GTK_MENU (menu));
1763 if (GTK_IS_MENU_ITEM (attach))
1764 attach = attach->parent;
1766 if (GTK_IS_MENU (attach))
1767 return gtk_menu_get_toplevel (attach);
1768 else if (GTK_IS_WIDGET (attach))
1770 toplevel = gtk_widget_get_toplevel (attach);
1771 if (GTK_WIDGET_TOPLEVEL (toplevel))
1779 tearoff_window_destroyed (GtkWidget *widget,
1782 gtk_menu_set_tearoff_state (menu, FALSE);
1786 gtk_menu_set_tearoff_state (GtkMenu *menu,
1791 g_return_if_fail (GTK_IS_MENU (menu));
1793 if (menu->torn_off != torn_off)
1795 menu->torn_off = torn_off;
1796 menu->tearoff_active = torn_off;
1800 if (GTK_WIDGET_VISIBLE (menu))
1801 gtk_menu_popdown (menu);
1803 if (!menu->tearoff_window)
1805 GtkWidget *toplevel;
1807 menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW,
1808 "type", GTK_WINDOW_TOPLEVEL,
1809 "screen", gtk_widget_get_screen (menu->toplevel),
1810 "app-paintable", TRUE,
1813 gtk_window_set_type_hint (GTK_WINDOW (menu->tearoff_window),
1814 GDK_WINDOW_TYPE_HINT_MENU);
1815 gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->tearoff_window), 0);
1816 g_signal_connect (menu->tearoff_window, "destroy",
1817 G_CALLBACK (tearoff_window_destroyed), menu);
1818 g_signal_connect (menu->tearoff_window, "event",
1819 G_CALLBACK (gtk_menu_window_event), menu);
1821 gtk_menu_update_title (menu);
1823 gtk_widget_realize (menu->tearoff_window);
1825 toplevel = gtk_menu_get_toplevel (GTK_WIDGET (menu));
1826 if (toplevel != NULL)
1827 gtk_window_set_transient_for (GTK_WINDOW (menu->tearoff_window),
1828 GTK_WINDOW (toplevel));
1830 menu->tearoff_hbox = gtk_hbox_new (FALSE, FALSE);
1831 gtk_container_add (GTK_CONTAINER (menu->tearoff_window), menu->tearoff_hbox);
1833 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
1834 menu->tearoff_adjustment =
1835 GTK_ADJUSTMENT (gtk_adjustment_new (0,
1837 GTK_WIDGET (menu)->requisition.height,
1841 g_object_connect (menu->tearoff_adjustment,
1842 "signal::value_changed", gtk_menu_scrollbar_changed, menu,
1844 menu->tearoff_scrollbar = gtk_vscrollbar_new (menu->tearoff_adjustment);
1846 gtk_box_pack_end (GTK_BOX (menu->tearoff_hbox),
1847 menu->tearoff_scrollbar,
1850 if (menu->tearoff_adjustment->upper > height)
1851 gtk_widget_show (menu->tearoff_scrollbar);
1853 gtk_widget_show (menu->tearoff_hbox);
1856 gtk_menu_reparent (menu, menu->tearoff_hbox, FALSE);
1858 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, NULL);
1860 /* Update menu->requisition
1862 gtk_widget_size_request (GTK_WIDGET (menu), NULL);
1864 gtk_menu_set_tearoff_hints (menu, width);
1866 gtk_widget_realize (menu->tearoff_window);
1867 gtk_menu_position (menu);
1869 gtk_widget_show (GTK_WIDGET (menu));
1870 gtk_widget_show (menu->tearoff_window);
1872 gtk_menu_scroll_to (menu, 0);
1877 gtk_widget_hide (GTK_WIDGET (menu));
1878 gtk_widget_hide (menu->tearoff_window);
1879 if (GTK_IS_CONTAINER (menu->toplevel))
1880 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1881 gtk_widget_destroy (menu->tearoff_window);
1883 menu->tearoff_window = NULL;
1884 menu->tearoff_hbox = NULL;
1885 menu->tearoff_scrollbar = NULL;
1886 menu->tearoff_adjustment = NULL;
1889 g_object_notify (G_OBJECT (menu), "tearoff-state");
1894 * gtk_menu_get_tearoff_state:
1897 * Returns whether the menu is torn off. See
1898 * gtk_menu_set_tearoff_state ().
1900 * Return value: %TRUE if the menu is currently torn off.
1903 gtk_menu_get_tearoff_state (GtkMenu *menu)
1905 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
1907 return menu->torn_off;
1911 * gtk_menu_set_title:
1913 * @title: a string containing the title for the menu.
1915 * Sets the title string for the menu. The title is displayed when the menu
1916 * is shown as a tearoff menu.
1919 gtk_menu_set_title (GtkMenu *menu,
1922 GtkMenuPrivate *priv;
1924 g_return_if_fail (GTK_IS_MENU (menu));
1926 priv = gtk_menu_get_private (menu);
1928 if (strcmp (title ? title : "", priv->title ? priv->title : "") != 0)
1930 g_free (priv->title);
1931 priv->title = g_strdup (title);
1933 gtk_menu_update_title (menu);
1934 g_object_notify (G_OBJECT (menu), "tearoff-title");
1939 * gtk_menu_get_title:
1942 * Returns the title of the menu. See gtk_menu_set_title().
1944 * Return value: the title of the menu, or %NULL if the menu has no
1945 * title set on it. This string is owned by the widget and should
1946 * not be modified or freed.
1948 G_CONST_RETURN gchar *
1949 gtk_menu_get_title (GtkMenu *menu)
1951 GtkMenuPrivate *priv;
1953 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1955 priv = gtk_menu_get_private (menu);
1961 gtk_menu_reorder_child (GtkMenu *menu,
1965 GtkMenuShell *menu_shell;
1967 g_return_if_fail (GTK_IS_MENU (menu));
1968 g_return_if_fail (GTK_IS_MENU_ITEM (child));
1970 menu_shell = GTK_MENU_SHELL (menu);
1972 if (g_list_find (menu_shell->children, child))
1974 menu_shell->children = g_list_remove (menu_shell->children, child);
1975 menu_shell->children = g_list_insert (menu_shell->children, child, position);
1977 menu_queue_resize (menu);
1982 gtk_menu_style_set (GtkWidget *widget,
1983 GtkStyle *previous_style)
1985 if (GTK_WIDGET_REALIZED (widget))
1987 GtkMenu *menu = GTK_MENU (widget);
1989 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
1990 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
1991 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
1996 gtk_menu_realize (GtkWidget *widget)
1998 GdkWindowAttr attributes;
1999 gint attributes_mask;
2004 guint vertical_padding;
2005 guint horizontal_padding;
2006 guint scroll_arrow_height;
2008 g_return_if_fail (GTK_IS_MENU (widget));
2010 menu = GTK_MENU (widget);
2012 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
2014 attributes.window_type = GDK_WINDOW_CHILD;
2015 attributes.x = widget->allocation.x;
2016 attributes.y = widget->allocation.y;
2017 attributes.width = widget->allocation.width;
2018 attributes.height = widget->allocation.height;
2019 attributes.wclass = GDK_INPUT_OUTPUT;
2020 attributes.visual = gtk_widget_get_visual (widget);
2021 attributes.colormap = gtk_widget_get_colormap (widget);
2023 attributes.event_mask = gtk_widget_get_events (widget);
2025 attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
2026 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
2028 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
2029 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
2030 gdk_window_set_user_data (widget->window, widget);
2032 border_width = GTK_CONTAINER (widget)->border_width;
2034 gtk_widget_style_get (GTK_WIDGET (menu),
2035 "vertical-padding", &vertical_padding,
2036 "horizontal-padding", &horizontal_padding,
2037 "scroll-arrow-vlength", &scroll_arrow_height,
2040 attributes.x = border_width + widget->style->xthickness + horizontal_padding;
2041 attributes.y = border_width + widget->style->ythickness + vertical_padding;
2042 attributes.width = MAX (1, widget->allocation.width - attributes.x * 2);
2043 attributes.height = MAX (1, widget->allocation.height - attributes.y * 2);
2045 if (menu->upper_arrow_visible)
2047 attributes.y += scroll_arrow_height;
2048 attributes.height -= scroll_arrow_height;
2051 if (menu->lower_arrow_visible)
2052 attributes.height -= scroll_arrow_height;
2054 menu->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
2055 gdk_window_set_user_data (menu->view_window, menu);
2059 attributes.width = MAX (1, widget->allocation.width - (border_width + widget->style->xthickness + horizontal_padding) * 2);
2060 attributes.height = MAX (1, widget->requisition.height - (border_width + widget->style->ythickness + vertical_padding) * 2);
2062 menu->bin_window = gdk_window_new (menu->view_window, &attributes, attributes_mask);
2063 gdk_window_set_user_data (menu->bin_window, menu);
2065 children = GTK_MENU_SHELL (menu)->children;
2068 child = children->data;
2069 children = children->next;
2071 gtk_widget_set_parent_window (child, menu->bin_window);
2074 widget->style = gtk_style_attach (widget->style, widget->window);
2075 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2076 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2077 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2079 if (GTK_MENU_SHELL (widget)->active_menu_item)
2080 gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
2081 GTK_MENU_SHELL (widget)->active_menu_item);
2083 gdk_window_show (menu->bin_window);
2084 gdk_window_show (menu->view_window);
2088 gtk_menu_focus (GtkWidget *widget,
2089 GtkDirectionType direction)
2092 * A menu or its menu items cannot have focus
2097 /* See notes in gtk_menu_popup() for information about the "grab transfer window"
2100 menu_grab_transfer_window_get (GtkMenu *menu)
2102 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2105 GdkWindowAttr attributes;
2106 gint attributes_mask;
2108 attributes.x = -100;
2109 attributes.y = -100;
2110 attributes.width = 10;
2111 attributes.height = 10;
2112 attributes.window_type = GDK_WINDOW_TEMP;
2113 attributes.wclass = GDK_INPUT_ONLY;
2114 attributes.override_redirect = TRUE;
2115 attributes.event_mask = 0;
2117 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
2119 window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
2120 &attributes, attributes_mask);
2121 gdk_window_set_user_data (window, menu);
2123 gdk_window_show (window);
2125 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), window);
2132 menu_grab_transfer_window_destroy (GtkMenu *menu)
2134 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2137 gdk_window_set_user_data (window, NULL);
2138 gdk_window_destroy (window);
2139 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), NULL);
2144 gtk_menu_unrealize (GtkWidget *widget)
2148 g_return_if_fail (GTK_IS_MENU (widget));
2150 menu = GTK_MENU (widget);
2152 menu_grab_transfer_window_destroy (menu);
2154 gdk_window_set_user_data (menu->view_window, NULL);
2155 gdk_window_destroy (menu->view_window);
2156 menu->view_window = NULL;
2158 gdk_window_set_user_data (menu->bin_window, NULL);
2159 gdk_window_destroy (menu->bin_window);
2160 menu->bin_window = NULL;
2162 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize) (widget);
2166 gtk_menu_size_request (GtkWidget *widget,
2167 GtkRequisition *requisition)
2171 GtkMenuShell *menu_shell;
2174 guint max_toggle_size;
2175 guint max_accel_width;
2176 guint vertical_padding;
2177 guint horizontal_padding;
2178 GtkRequisition child_requisition;
2179 GtkMenuPrivate *priv;
2181 g_return_if_fail (GTK_IS_MENU (widget));
2182 g_return_if_fail (requisition != NULL);
2184 menu = GTK_MENU (widget);
2185 menu_shell = GTK_MENU_SHELL (widget);
2186 priv = gtk_menu_get_private (menu);
2188 requisition->width = 0;
2189 requisition->height = 0;
2191 max_toggle_size = 0;
2192 max_accel_width = 0;
2194 g_free (priv->heights);
2195 priv->heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2196 priv->heights_length = gtk_menu_get_n_rows (menu);
2198 children = menu_shell->children;
2205 child = children->data;
2206 children = children->next;
2208 if (! GTK_WIDGET_VISIBLE (child))
2211 get_effective_child_attach (child, &l, &r, &t, &b);
2213 /* It's important to size_request the child
2214 * before doing the toggle size request, in
2215 * case the toggle size request depends on the size
2216 * request of a child of the child (e.g. for ImageMenuItem)
2219 GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE;
2220 gtk_widget_size_request (child, &child_requisition);
2222 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
2223 max_toggle_size = MAX (max_toggle_size, toggle_size);
2224 max_accel_width = MAX (max_accel_width,
2225 GTK_MENU_ITEM (child)->accelerator_width);
2227 part = child_requisition.width / (r - l);
2228 requisition->width = MAX (requisition->width, part);
2230 part = MAX (child_requisition.height, toggle_size) / (b - t);
2231 priv->heights[t] = MAX (priv->heights[t], part);
2234 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2235 requisition->height += priv->heights[i];
2237 requisition->width += max_toggle_size + max_accel_width;
2238 requisition->width *= gtk_menu_get_n_columns (menu);
2240 gtk_widget_style_get (GTK_WIDGET (menu),
2241 "vertical-padding", &vertical_padding,
2242 "horizontal-padding", &horizontal_padding,
2245 requisition->width += (GTK_CONTAINER (menu)->border_width + horizontal_padding +
2246 widget->style->xthickness) * 2;
2247 requisition->height += (GTK_CONTAINER (menu)->border_width + vertical_padding +
2248 widget->style->ythickness) * 2;
2250 menu->toggle_size = max_toggle_size;
2252 /* Don't resize the tearoff if it is not active, because it won't redraw (it is only a background pixmap).
2254 if (menu->tearoff_active)
2255 gtk_menu_set_tearoff_hints (menu, requisition->width);
2259 gtk_menu_size_allocate (GtkWidget *widget,
2260 GtkAllocation *allocation)
2263 GtkMenuShell *menu_shell;
2265 GtkAllocation child_allocation;
2266 GtkRequisition child_requisition;
2267 GtkMenuPrivate *priv;
2271 guint vertical_padding;
2272 guint horizontal_padding;
2273 gint scroll_arrow_height;
2275 g_return_if_fail (GTK_IS_MENU (widget));
2276 g_return_if_fail (allocation != NULL);
2278 menu = GTK_MENU (widget);
2279 menu_shell = GTK_MENU_SHELL (widget);
2280 priv = gtk_menu_get_private (menu);
2282 widget->allocation = *allocation;
2283 gtk_widget_get_child_requisition (GTK_WIDGET (menu), &child_requisition);
2285 gtk_widget_style_get (GTK_WIDGET (menu),
2286 "vertical-padding", &vertical_padding,
2287 "horizontal-padding", &horizontal_padding,
2288 "scroll-arrow-vlength", &scroll_arrow_height,
2291 x = GTK_CONTAINER (menu)->border_width + widget->style->xthickness + horizontal_padding;
2292 y = GTK_CONTAINER (menu)->border_width + widget->style->ythickness + vertical_padding;
2294 width = MAX (1, allocation->width - x * 2);
2295 height = MAX (1, allocation->height - y * 2);
2297 child_requisition.width -= x * 2;
2298 child_requisition.height -= y * 2;
2300 if (menu_shell->active)
2301 gtk_menu_scroll_to (menu, menu->scroll_offset);
2303 if (menu->upper_arrow_visible && !menu->tearoff_active)
2305 y += scroll_arrow_height;
2306 height -= scroll_arrow_height;
2309 if (menu->lower_arrow_visible && !menu->tearoff_active)
2310 height -= scroll_arrow_height;
2312 if (GTK_WIDGET_REALIZED (widget))
2314 gdk_window_move_resize (widget->window,
2315 allocation->x, allocation->y,
2316 allocation->width, allocation->height);
2318 gdk_window_move_resize (menu->view_window,
2325 if (menu_shell->children)
2327 gint base_width = width / gtk_menu_get_n_columns (menu);
2329 children = menu_shell->children;
2332 child = children->data;
2333 children = children->next;
2335 if (GTK_WIDGET_VISIBLE (child))
2340 get_effective_child_attach (child, &l, &r, &t, &b);
2342 if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
2345 tmp = gtk_menu_get_n_columns (menu) - l;
2346 l = gtk_menu_get_n_columns (menu) - r;
2350 child_allocation.width = (r - l) * base_width;
2351 child_allocation.height = 0;
2352 child_allocation.x = l * base_width;
2353 child_allocation.y = 0;
2355 for (i = 0; i < b; i++)
2358 child_allocation.y += priv->heights[i];
2360 child_allocation.height += priv->heights[i];
2363 gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
2366 gtk_widget_size_allocate (child, &child_allocation);
2367 gtk_widget_queue_draw (child);
2371 /* Resize the item window */
2372 if (GTK_WIDGET_REALIZED (widget))
2378 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2379 height += priv->heights[i];
2381 width = gtk_menu_get_n_columns (menu) * base_width;
2382 gdk_window_resize (menu->bin_window, width, height);
2385 if (menu->tearoff_active)
2387 if (allocation->height >= widget->requisition.height)
2389 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2391 gtk_widget_hide (menu->tearoff_scrollbar);
2392 gtk_menu_set_tearoff_hints (menu, allocation->width);
2394 gtk_menu_scroll_to (menu, 0);
2399 menu->tearoff_adjustment->upper = widget->requisition.height;
2400 menu->tearoff_adjustment->page_size = allocation->height;
2402 if (menu->tearoff_adjustment->value + menu->tearoff_adjustment->page_size >
2403 menu->tearoff_adjustment->upper)
2406 value = menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size;
2409 gtk_menu_scroll_to (menu, value);
2412 gtk_adjustment_changed (menu->tearoff_adjustment);
2414 if (!GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2416 gtk_widget_show (menu->tearoff_scrollbar);
2417 gtk_menu_set_tearoff_hints (menu, allocation->width);
2425 gtk_menu_paint (GtkWidget *widget,
2426 GdkEventExpose *event)
2429 GtkMenuPrivate *priv;
2431 gint border_x, border_y;
2432 guint vertical_padding;
2433 guint horizontal_padding;
2434 gint scroll_arrow_height;
2436 g_return_if_fail (GTK_IS_MENU (widget));
2438 menu = GTK_MENU (widget);
2439 priv = gtk_menu_get_private (menu);
2441 gtk_widget_style_get (GTK_WIDGET (menu),
2442 "vertical-padding", &vertical_padding,
2443 "horizontal-padding", &horizontal_padding,
2444 "scroll-arrow-vlength", &scroll_arrow_height,
2447 border_x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness + horizontal_padding;
2448 border_y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness + vertical_padding;
2449 gdk_drawable_get_size (widget->window, &width, &height);
2451 if (event->window == widget->window)
2453 gint arrow_space = scroll_arrow_height - 2 * widget->style->ythickness;
2454 gint arrow_size = 0.7 * arrow_space;
2456 gtk_paint_box (widget->style,
2460 NULL, widget, "menu",
2463 if (menu->upper_arrow_visible && !menu->tearoff_active)
2465 gtk_paint_box (widget->style,
2467 priv->upper_arrow_state,
2469 NULL, widget, "menu",
2472 width - 2 * border_x,
2473 scroll_arrow_height);
2475 gtk_paint_arrow (widget->style,
2477 priv->upper_arrow_state,
2479 NULL, widget, "menu_scroll_arrow_up",
2482 (width - arrow_size ) / 2,
2483 border_y + widget->style->ythickness + (arrow_space - arrow_size)/2,
2484 arrow_size, arrow_size);
2487 if (menu->lower_arrow_visible && !menu->tearoff_active)
2489 gtk_paint_box (widget->style,
2491 priv->lower_arrow_state,
2493 NULL, widget, "menu",
2495 height - border_y - scroll_arrow_height,
2497 scroll_arrow_height);
2499 gtk_paint_arrow (widget->style,
2501 priv->lower_arrow_state,
2503 NULL, widget, "menu_scroll_arrow_down",
2506 (width - arrow_size) / 2,
2507 height - border_y - scroll_arrow_height +
2508 widget->style->ythickness + (arrow_space - arrow_size)/2,
2509 arrow_size, arrow_size);
2512 else if (event->window == menu->bin_window)
2514 gtk_paint_box (widget->style,
2518 NULL, widget, "menu",
2519 - border_x, menu->scroll_offset - border_y,
2525 gtk_menu_expose (GtkWidget *widget,
2526 GdkEventExpose *event)
2528 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2529 g_return_val_if_fail (event != NULL, FALSE);
2531 if (GTK_WIDGET_DRAWABLE (widget))
2533 gtk_menu_paint (widget, event);
2535 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->expose_event) (widget, event);
2542 gtk_menu_show (GtkWidget *widget)
2544 GtkMenu *menu = GTK_MENU (widget);
2546 _gtk_menu_refresh_accel_paths (menu, FALSE);
2548 GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
2552 gtk_menu_button_scroll (GtkWidget *widget,
2553 GdkEventButton *event)
2555 if (GTK_IS_MENU (widget))
2557 GtkMenu *menu = GTK_MENU (widget);
2559 if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
2561 GtkSettings *settings = gtk_widget_get_settings (widget);
2562 gboolean touchscreen_mode;
2564 g_object_get (G_OBJECT (settings),
2565 "gtk-touchscreen-mode", &touchscreen_mode,
2568 if (touchscreen_mode)
2569 gtk_menu_handle_scrolling (menu,
2570 event->x_root, event->y_root,
2571 event->type == GDK_BUTTON_PRESS,
2582 gtk_menu_button_press (GtkWidget *widget,
2583 GdkEventButton *event)
2585 if (event->type != GDK_BUTTON_PRESS)
2588 /* Don't pop down the menu for presses over scroll arrows
2590 if (gtk_menu_button_scroll (widget, event))
2593 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_press_event (widget, event);
2597 gtk_menu_button_release (GtkWidget *widget,
2598 GdkEventButton *event)
2600 if (GTK_IS_MENU (widget))
2602 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2604 if (priv->ignore_button_release)
2606 priv->ignore_button_release = FALSE;
2611 if (event->type != GDK_BUTTON_RELEASE)
2614 /* Don't pop down the menu for releases over scroll arrows
2616 if (gtk_menu_button_scroll (widget, event))
2619 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_release_event (widget, event);
2622 static const gchar *
2623 get_accel_path (GtkWidget *menu_item,
2628 GClosure *accel_closure;
2629 GtkAccelGroup *accel_group;
2631 path = _gtk_widget_get_accel_path (menu_item, locked);
2634 path = GTK_MENU_ITEM (menu_item)->accel_path;
2640 label = GTK_BIN (menu_item)->child;
2642 if (GTK_IS_ACCEL_LABEL (label))
2644 g_object_get (label,
2645 "accel-closure", &accel_closure,
2649 accel_group = gtk_accel_group_from_accel_closure (accel_closure);
2651 *locked = accel_group->lock_count > 0;
2661 gtk_menu_key_press (GtkWidget *widget,
2664 GtkMenuShell *menu_shell;
2666 gboolean delete = FALSE;
2667 gboolean can_change_accels;
2668 gchar *accel = NULL;
2669 guint accel_key, accel_mods;
2670 GdkModifierType consumed_modifiers;
2671 GdkDisplay *display;
2673 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2674 g_return_val_if_fail (event != NULL, FALSE);
2676 menu_shell = GTK_MENU_SHELL (widget);
2677 menu = GTK_MENU (widget);
2679 gtk_menu_stop_navigating_submenu (menu);
2681 if (GTK_WIDGET_CLASS (gtk_menu_parent_class)->key_press_event (widget, event))
2684 display = gtk_widget_get_display (widget);
2686 g_object_get (gtk_widget_get_settings (widget),
2687 "gtk-menu-bar-accel", &accel,
2688 "gtk-can-change-accels", &can_change_accels,
2691 if (accel && *accel)
2694 GdkModifierType mods = 0;
2695 gboolean handled = FALSE;
2697 gtk_accelerator_parse (accel, &keyval, &mods);
2700 g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
2702 /* FIXME this is wrong, needs to be in the global accel resolution
2703 * thing, to properly consider i18n etc., but that probably requires
2704 * AccelGroup changes etc.
2706 if (event->keyval == keyval &&
2707 (mods & event->state) == mods)
2708 gtk_menu_shell_cancel (menu_shell);
2716 switch (event->keyval)
2727 /* Figure out what modifiers went into determining the key symbol */
2728 gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
2729 event->hardware_keycode, event->state, event->group,
2730 NULL, NULL, NULL, &consumed_modifiers);
2732 accel_key = gdk_keyval_to_lower (event->keyval);
2733 accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
2735 /* If lowercasing affects the keysym, then we need to include SHIFT in the modifiers,
2736 * We re-upper case when we match against the keyval, but display and save in caseless form.
2738 if (accel_key != event->keyval)
2739 accel_mods |= GDK_SHIFT_MASK;
2741 /* Modify the accelerators */
2742 if (can_change_accels &&
2743 menu_shell->active_menu_item &&
2744 GTK_BIN (menu_shell->active_menu_item)->child && /* no separators */
2745 GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && /* no submenus */
2746 (delete || gtk_accelerator_valid (accel_key, accel_mods)))
2748 GtkWidget *menu_item = menu_shell->active_menu_item;
2749 gboolean locked, replace_accels = TRUE;
2752 path = get_accel_path (menu_item, &locked);
2753 if (!path || locked)
2755 /* can't change accelerators on menu_items without paths
2756 * (basically, those items are accelerator-locked).
2758 /* g_print("item has no path or is locked, menu prefix: %s\n", menu->accel_path); */
2759 gdk_display_beep (display);
2765 /* For the keys that act to delete the current setting, we delete
2766 * the current setting if there is one, otherwise, we set the
2767 * key as the accelerator.
2773 if (gtk_accel_map_lookup_entry (path, &key) &&
2774 (key.accel_key || key.accel_mods))
2780 changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
2784 /* we failed, probably because this key is in use and
2787 /* g_print("failed to change\n"); */
2788 gdk_display_beep (display);
2797 check_threshold (GtkWidget *widget,
2798 int start_x, int start_y,
2804 ABS (start_x - x) > THRESHOLD ||
2805 ABS (start_y - y) > THRESHOLD;
2809 definitely_within_item (GtkWidget *widget,
2813 GdkWindow *window = GTK_MENU_ITEM (widget)->event_window;
2816 gdk_drawable_get_size (window, &w, &h);
2819 check_threshold (widget, 0, 0, x, y) &&
2820 check_threshold (widget, w - 1, 0, x, y) &&
2821 check_threshold (widget, w - 1, h - 1, x, y) &&
2822 check_threshold (widget, 0, h - 1, x, y);
2826 gtk_menu_motion_notify (GtkWidget *widget,
2827 GdkEventMotion *event)
2829 GtkWidget *menu_item;
2831 GtkMenuShell *menu_shell;
2833 gboolean need_enter;
2835 if (GTK_IS_MENU (widget))
2837 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2839 if (priv->ignore_button_release)
2840 priv->ignore_button_release = FALSE;
2842 gtk_menu_handle_scrolling (GTK_MENU (widget), event->x_root, event->y_root,
2846 /* We received the event for one of two reasons:
2848 * a) We are the active menu, and did gtk_grab_add()
2849 * b) The widget is a child of ours, and the event was propagated
2851 * Since for computation of navigation regions, we want the menu which
2852 * is the parent of the menu item, for a), we need to find that menu,
2853 * which may be different from 'widget'.
2855 menu_item = gtk_get_event_widget ((GdkEvent*) event);
2856 if (!GTK_IS_MENU_ITEM (menu_item) ||
2857 !GTK_IS_MENU (menu_item->parent))
2860 menu_shell = GTK_MENU_SHELL (menu_item->parent);
2861 menu = GTK_MENU (menu_shell);
2863 if (definitely_within_item (menu_item, event->x, event->y))
2864 menu_shell->activate_time = 0;
2866 need_enter = (menu->navigation_region != NULL || menu_shell->ignore_enter);
2868 /* Check to see if we are within an active submenu's navigation region
2870 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
2873 /* Make sure we pop down if we enter a non-selectable menu item, so we
2874 * don't show a submenu when the cursor is outside the stay-up triangle.
2876 if (!_gtk_menu_item_is_selectable (menu_item))
2878 gtk_menu_shell_deselect (menu_shell);
2884 /* The menu is now sensitive to enter events on its items, but
2885 * was previously sensitive. So we fake an enter event.
2889 menu_shell->ignore_enter = FALSE;
2891 gdk_drawable_get_size (event->window, &width, &height);
2892 if (event->x >= 0 && event->x < width &&
2893 event->y >= 0 && event->y < height)
2895 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
2898 send_event->crossing.window = g_object_ref (event->window);
2899 send_event->crossing.time = event->time;
2900 send_event->crossing.send_event = TRUE;
2901 send_event->crossing.x_root = event->x_root;
2902 send_event->crossing.y_root = event->y_root;
2903 send_event->crossing.x = event->x;
2904 send_event->crossing.y = event->y;
2906 /* We send the event to 'widget', the currently active menu,
2907 * instead of 'menu', the menu that the pointer is in. This
2908 * will ensure that the event will be ignored unless the
2909 * menuitem is a child of the active menu or some parent
2910 * menu of the active menu.
2912 result = gtk_widget_event (widget, send_event);
2913 gdk_event_free (send_event);
2923 get_double_arrows (GtkMenu *menu)
2925 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
2926 gboolean double_arrows;
2928 gtk_widget_style_get (GTK_WIDGET (menu),
2929 "double-arrows", &double_arrows,
2932 return double_arrows || (priv->initially_pushed_in &&
2933 menu->scroll_offset != 0);
2937 gtk_menu_scroll_by (GtkMenu *menu,
2942 gint view_width, view_height;
2943 gboolean double_arrows;
2944 gint scroll_arrow_height;
2946 widget = GTK_WIDGET (menu);
2947 offset = menu->scroll_offset + step;
2949 gtk_widget_style_get (GTK_WIDGET (menu),
2950 "scroll-arrow-vlength", &scroll_arrow_height,
2953 double_arrows = get_double_arrows (menu);
2955 /* If we scroll upward and the non-visible top part
2956 * is smaller than the scroll arrow it would be
2957 * pretty stupid to show the arrow and taking more
2958 * screen space than just scrolling to the top.
2961 if ((step < 0) && (offset < scroll_arrow_height))
2964 /* Don't scroll over the top if we weren't before: */
2965 if ((menu->scroll_offset >= 0) && (offset < 0))
2968 gdk_drawable_get_size (widget->window, &view_width, &view_height);
2970 if (menu->scroll_offset == 0 &&
2971 view_height >= widget->requisition.height)
2974 /* Don't scroll past the bottom if we weren't before: */
2975 if (menu->scroll_offset > 0)
2976 view_height -= scroll_arrow_height;
2978 /* When both arrows are always shown, reduce
2979 * view height even more.
2982 view_height -= scroll_arrow_height;
2984 if ((menu->scroll_offset + view_height <= widget->requisition.height) &&
2985 (offset + view_height > widget->requisition.height))
2986 offset = widget->requisition.height - view_height;
2988 if (offset != menu->scroll_offset)
2989 gtk_menu_scroll_to (menu, offset);
2993 gtk_menu_do_timeout_scroll (GtkMenu *menu,
2994 gboolean touchscreen_mode)
2996 gboolean upper_visible;
2997 gboolean lower_visible;
2999 upper_visible = menu->upper_arrow_visible;
3000 lower_visible = menu->lower_arrow_visible;
3002 gtk_menu_scroll_by (menu, menu->scroll_step);
3004 if (touchscreen_mode &&
3005 (upper_visible != menu->upper_arrow_visible ||
3006 lower_visible != menu->lower_arrow_visible))
3008 /* We are about to hide a scroll arrow while the mouse is pressed,
3009 * this would cause the uncovered menu item to be activated on button
3010 * release. Therefore we need to ignore button release here
3012 GTK_MENU_SHELL (menu)->ignore_enter = TRUE;
3013 gtk_menu_get_private (menu)->ignore_button_release = TRUE;
3018 gtk_menu_scroll_timeout (gpointer data)
3021 GtkSettings *settings;
3022 gboolean touchscreen_mode;
3024 GDK_THREADS_ENTER ();
3026 menu = GTK_MENU (data);
3028 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3029 g_object_get (settings,
3030 "gtk-touchscreen-mode", &touchscreen_mode,
3033 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3035 GDK_THREADS_LEAVE ();
3041 gtk_menu_scroll_timeout_initial (gpointer data)
3044 GtkSettings *settings;
3046 gboolean touchscreen_mode;
3048 GDK_THREADS_ENTER ();
3050 menu = GTK_MENU (data);
3052 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3053 g_object_get (settings,
3054 "gtk-timeout-repeat", &timeout,
3055 "gtk-touchscreen-mode", &touchscreen_mode,
3058 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3060 gtk_menu_remove_scroll_timeout (menu);
3062 menu->timeout_id = g_timeout_add (timeout, gtk_menu_scroll_timeout, menu);
3064 GDK_THREADS_LEAVE ();
3070 gtk_menu_start_scrolling (GtkMenu *menu)
3072 GtkSettings *settings;
3074 gboolean touchscreen_mode;
3076 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3077 g_object_get (settings,
3078 "gtk-timeout-repeat", &timeout,
3079 "gtk-touchscreen-mode", &touchscreen_mode,
3082 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3084 menu->timeout_id = g_timeout_add (timeout, gtk_menu_scroll_timeout_initial,
3089 gtk_menu_scroll (GtkWidget *widget,
3090 GdkEventScroll *event)
3092 GtkMenu *menu = GTK_MENU (widget);
3094 switch (event->direction)
3096 case GDK_SCROLL_RIGHT:
3097 case GDK_SCROLL_DOWN:
3098 gtk_menu_scroll_by (menu, MENU_SCROLL_STEP2);
3100 case GDK_SCROLL_LEFT:
3102 gtk_menu_scroll_by (menu, - MENU_SCROLL_STEP2);
3110 gtk_menu_handle_scrolling (GtkMenu *menu,
3116 GtkMenuShell *menu_shell;
3117 GtkMenuPrivate *priv;
3122 gboolean scroll_fast = FALSE;
3123 guint vertical_padding;
3126 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3127 gboolean touchscreen_mode;
3128 gint scroll_arrow_height;
3130 priv = gtk_menu_get_private (menu);
3132 menu_shell = GTK_MENU_SHELL (menu);
3134 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
3136 g_object_get (G_OBJECT (settings),
3137 "gtk-touchscreen-mode", &touchscreen_mode,
3140 gtk_widget_style_get (GTK_WIDGET (menu),
3141 "vertical-padding", &vertical_padding,
3142 "scroll-arrow-vlength", &scroll_arrow_height,
3145 border = GTK_CONTAINER (menu)->border_width +
3146 GTK_WIDGET (menu)->style->ythickness + vertical_padding;
3148 gdk_window_get_position (menu->toplevel->window, &top_x, &top_y);
3152 gdk_window_get_position (GTK_WIDGET (menu)->window, &win_x, &win_y);
3154 /* upper arrow handling */
3159 rect.height = scroll_arrow_height + border;
3162 if (menu->upper_arrow_visible && !menu->tearoff_active &&
3163 (x >= rect.x) && (x < rect.x + rect.width) &&
3164 (y >= rect.y) && (y < rect.y + rect.height))
3169 if (touchscreen_mode)
3170 menu->upper_arrow_prelight = in_arrow;
3172 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3174 if (menu->upper_arrow_visible && !menu->tearoff_active)
3176 if (touchscreen_mode)
3178 if (enter && menu->upper_arrow_prelight &&
3179 menu->timeout_id == 0)
3181 /* Deselect the active item so that
3182 * any submenus are popped down
3184 gtk_menu_shell_deselect (menu_shell);
3186 gtk_menu_remove_scroll_timeout (menu);
3187 menu->scroll_step = -MENU_SCROLL_STEP2; /* always fast */
3191 /* Only do stuff on click. */
3192 gtk_menu_start_scrolling (menu);
3193 priv->upper_arrow_state = GTK_STATE_ACTIVE;
3196 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3201 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3204 gtk_menu_stop_scrolling (menu);
3207 else /* !touchscreen_mode */
3209 scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
3211 if (enter && in_arrow &&
3212 (!menu->upper_arrow_prelight ||
3213 menu->scroll_fast != scroll_fast))
3215 menu->upper_arrow_prelight = TRUE;
3216 menu->scroll_fast = scroll_fast;
3217 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3220 /* Deselect the active item so that
3221 * any submenus are popped down
3223 gtk_menu_shell_deselect (menu_shell);
3225 gtk_menu_remove_scroll_timeout (menu);
3226 menu->scroll_step = scroll_fast ?
3227 -MENU_SCROLL_STEP2 : -MENU_SCROLL_STEP1;
3230 g_timeout_add (scroll_fast ?
3231 MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
3232 gtk_menu_scroll_timeout, menu);
3234 else if (!enter && !in_arrow && menu->upper_arrow_prelight)
3236 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3239 gtk_menu_stop_scrolling (menu);
3244 priv->upper_arrow_state = menu->upper_arrow_prelight ?
3245 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
3248 /* lower arrow handling */
3251 rect.y = win_y + height - border - scroll_arrow_height;
3253 rect.height = scroll_arrow_height + border;
3256 if (menu->lower_arrow_visible && !menu->tearoff_active &&
3257 (x >= rect.x) && (x < rect.x + rect.width) &&
3258 (y >= rect.y) && (y < rect.y + rect.height))
3263 if (touchscreen_mode)
3264 menu->lower_arrow_prelight = in_arrow;
3266 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3268 if (menu->lower_arrow_visible && !menu->tearoff_active)
3270 if (touchscreen_mode)
3272 if (enter && menu->lower_arrow_prelight &&
3273 menu->timeout_id == 0)
3275 /* Deselect the active item so that
3276 * any submenus are popped down
3278 gtk_menu_shell_deselect (menu_shell);
3280 gtk_menu_remove_scroll_timeout (menu);
3281 menu->scroll_step = MENU_SCROLL_STEP2; /* always fast */
3285 /* Only do stuff on click. */
3286 gtk_menu_start_scrolling (menu);
3287 priv->lower_arrow_state = GTK_STATE_ACTIVE;
3290 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3295 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3298 gtk_menu_stop_scrolling (menu);
3301 else /* !touchscreen_mode */
3303 scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
3305 if (enter && in_arrow &&
3306 (!menu->lower_arrow_prelight ||
3307 menu->scroll_fast != scroll_fast))
3309 menu->lower_arrow_prelight = TRUE;
3310 menu->scroll_fast = scroll_fast;
3311 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3314 /* Deselect the active item so that
3315 * any submenus are popped down
3317 gtk_menu_shell_deselect (menu_shell);
3319 gtk_menu_remove_scroll_timeout (menu);
3320 menu->scroll_step = scroll_fast ?
3321 MENU_SCROLL_STEP2 : MENU_SCROLL_STEP1;
3324 g_timeout_add (scroll_fast ?
3325 MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
3326 gtk_menu_scroll_timeout, menu);
3328 else if (!enter && !in_arrow && menu->lower_arrow_prelight)
3330 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3333 gtk_menu_stop_scrolling (menu);
3338 priv->lower_arrow_state = menu->lower_arrow_prelight ?
3339 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
3344 gtk_menu_enter_notify (GtkWidget *widget,
3345 GdkEventCrossing *event)
3347 GtkSettings *settings = gtk_widget_get_settings (widget);
3348 GtkWidget *menu_item;
3349 gboolean touchscreen_mode;
3351 g_object_get (G_OBJECT (settings),
3352 "gtk-touchscreen-mode", &touchscreen_mode,
3355 menu_item = gtk_get_event_widget ((GdkEvent*) event);
3356 if (GTK_IS_MENU (widget))
3358 GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
3360 if (!menu_shell->ignore_enter)
3361 gtk_menu_handle_scrolling (GTK_MENU (widget),
3362 event->x_root, event->y_root, TRUE, TRUE);
3365 if (!touchscreen_mode && GTK_IS_MENU_ITEM (menu_item))
3367 GtkWidget *menu = menu_item->parent;
3369 if (GTK_IS_MENU (menu))
3371 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (menu));
3372 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
3374 if (priv->seen_item_enter)
3376 /* This is the second enter we see for an item
3377 * on this menu. This means a release should always
3380 menu_shell->activate_time = 0;
3382 else if ((event->detail != GDK_NOTIFY_NONLINEAR &&
3383 event->detail != GDK_NOTIFY_NONLINEAR_VIRTUAL))
3385 if (definitely_within_item (menu_item, event->x, event->y))
3387 /* This is an actual user-enter (ie. not a pop-under)
3388 * In this case, the user must either have entered
3389 * sufficiently far enough into the item, or he must move
3390 * far enough away from the enter point. (see
3391 * gtk_menu_motion_notify())
3393 menu_shell->activate_time = 0;
3397 priv->seen_item_enter = TRUE;
3401 /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
3402 * will not correspond to the event widget's parent. Check to see
3403 * if we are in the parent's navigation region.
3405 if (GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (menu_item->parent) &&
3406 gtk_menu_navigating_submenu (GTK_MENU (menu_item->parent),
3407 event->x_root, event->y_root))
3410 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (widget, event);
3414 gtk_menu_leave_notify (GtkWidget *widget,
3415 GdkEventCrossing *event)
3417 GtkMenuShell *menu_shell;
3419 GtkMenuItem *menu_item;
3420 GtkWidget *event_widget;
3422 menu = GTK_MENU (widget);
3423 menu_shell = GTK_MENU_SHELL (widget);
3425 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
3428 gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
3430 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3432 if (!GTK_IS_MENU_ITEM (event_widget))
3435 menu_item = GTK_MENU_ITEM (event_widget);
3437 /* Here we check to see if we're leaving an active menu item with a submenu,
3438 * in which case we enter submenu navigation mode.
3440 if (menu_shell->active_menu_item != NULL
3441 && menu_item->submenu != NULL
3442 && menu_item->submenu_placement == GTK_LEFT_RIGHT)
3444 if (GTK_MENU_SHELL (menu_item->submenu)->active)
3446 gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
3449 else if (menu_item == GTK_MENU_ITEM (menu_shell->active_menu_item))
3451 /* We are leaving an active menu item with nonactive submenu.
3452 * Deselect it so we don't surprise the user with by popping
3453 * up a submenu _after_ he left the item.
3455 gtk_menu_shell_deselect (menu_shell);
3460 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->leave_notify_event (widget, event);
3464 gtk_menu_stop_navigating_submenu (GtkMenu *menu)
3466 if (menu->navigation_region)
3468 gdk_region_destroy (menu->navigation_region);
3469 menu->navigation_region = NULL;
3471 if (menu->navigation_timeout)
3473 g_source_remove (menu->navigation_timeout);
3474 menu->navigation_timeout = 0;
3478 /* When the timeout is elapsed, the navigation region is destroyed
3479 * and the menuitem under the pointer (if any) is selected.
3482 gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
3484 GtkMenu *menu = user_data;
3485 GdkWindow *child_window;
3487 GDK_THREADS_ENTER ();
3489 gtk_menu_stop_navigating_submenu (menu);
3491 if (GTK_WIDGET_REALIZED (menu))
3493 child_window = gdk_window_get_pointer (menu->bin_window, NULL, NULL, NULL);
3497 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
3499 send_event->crossing.window = g_object_ref (child_window);
3500 send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
3501 send_event->crossing.send_event = TRUE;
3503 GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
3505 gdk_event_free (send_event);
3509 GDK_THREADS_LEAVE ();
3515 gtk_menu_navigating_submenu (GtkMenu *menu,
3519 if (menu->navigation_region)
3521 if (gdk_region_point_in (menu->navigation_region, event_x, event_y))
3525 gtk_menu_stop_navigating_submenu (menu);
3532 #undef DRAW_STAY_UP_TRIANGLE
3534 #ifdef DRAW_STAY_UP_TRIANGLE
3537 draw_stay_up_triangle (GdkWindow *window,
3540 /* Draw ugly color all over the stay-up triangle */
3541 GdkColor ugly_color = { 0, 50000, 10000, 10000 };
3542 GdkGCValues gc_values;
3544 GdkRectangle clipbox;
3546 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
3547 ugly_gc = gdk_gc_new_with_values (window, &gc_values, 0 | GDK_GC_SUBWINDOW);
3548 gdk_gc_set_rgb_fg_color (ugly_gc, &ugly_color);
3549 gdk_gc_set_clip_region (ugly_gc, region);
3551 gdk_region_get_clipbox (region, &clipbox);
3553 gdk_draw_rectangle (window,
3556 clipbox.x, clipbox.y,
3557 clipbox.width, clipbox.height);
3559 g_object_unref (ugly_gc);
3564 flip_region (GdkRegion *region,
3569 GdkRectangle *rectangles;
3570 GdkRectangle clipbox;
3571 GdkRegion *new_region;
3574 new_region = gdk_region_new ();
3576 gdk_region_get_rectangles (region, &rectangles, &n_rectangles);
3577 gdk_region_get_clipbox (region, &clipbox);
3579 for (i = 0; i < n_rectangles; ++i)
3581 GdkRectangle rect = rectangles[i];
3584 rect.y -= 2 * (rect.y - clipbox.y) + rect.height;
3587 rect.x -= 2 * (rect.x - clipbox.x) + rect.width;
3589 gdk_region_union_with_rect (new_region, &rect);
3592 g_free (rectangles);
3598 gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
3599 GtkMenuItem *menu_item,
3600 GdkEventCrossing *event)
3602 gint submenu_left = 0;
3603 gint submenu_right = 0;
3604 gint submenu_top = 0;
3605 gint submenu_bottom = 0;
3609 GtkWidget *event_widget;
3611 g_return_if_fail (menu_item->submenu != NULL);
3612 g_return_if_fail (event != NULL);
3614 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3616 gdk_window_get_origin (menu_item->submenu->window, &submenu_left, &submenu_top);
3617 gdk_drawable_get_size (menu_item->submenu->window, &width, &height);
3619 submenu_right = submenu_left + width;
3620 submenu_bottom = submenu_top + height;
3622 gdk_drawable_get_size (event_widget->window, &width, &height);
3624 if (event->x >= 0 && event->x < width)
3627 gboolean flip_y = FALSE;
3628 gboolean flip_x = FALSE;
3630 gtk_menu_stop_navigating_submenu (menu);
3632 if (menu_item->submenu_direction == GTK_DIRECTION_RIGHT)
3635 point[0].x = event->x_root;
3636 point[1].x = submenu_left;
3641 point[0].x = event->x_root + 1;
3642 point[1].x = 2 * (event->x_root + 1) - submenu_right;
3650 point[0].y = event->y_root + 1;
3651 point[1].y = 2 * (event->y_root + 1) - submenu_top + NAVIGATION_REGION_OVERSHOOT;
3653 if (point[0].y >= point[1].y - NAVIGATION_REGION_OVERSHOOT)
3661 point[0].y = event->y_root;
3662 point[1].y = submenu_bottom + NAVIGATION_REGION_OVERSHOOT;
3664 if (point[0].y >= submenu_bottom)
3668 point[2].x = point[1].x;
3669 point[2].y = point[0].y;
3671 menu->navigation_region = gdk_region_polygon (point, 3, GDK_WINDING_RULE);
3673 if (flip_x || flip_y)
3675 GdkRegion *new_region = flip_region (menu->navigation_region, flip_x, flip_y);
3676 gdk_region_destroy (menu->navigation_region);
3677 menu->navigation_region = new_region;
3680 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3681 "gtk-menu-popdown-delay", &popdown_delay,
3684 menu->navigation_timeout = g_timeout_add (popdown_delay,
3685 gtk_menu_stop_navigating_submenu_cb, menu);
3687 #ifdef DRAW_STAY_UP_TRIANGLE
3688 draw_stay_up_triangle (gdk_get_default_root_window(),
3689 menu->navigation_region);
3695 gtk_menu_deactivate (GtkMenuShell *menu_shell)
3699 g_return_if_fail (GTK_IS_MENU (menu_shell));
3701 parent = menu_shell->parent_menu_shell;
3703 menu_shell->activate_time = 0;
3704 gtk_menu_popdown (GTK_MENU (menu_shell));
3707 gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
3711 gtk_menu_position (GtkMenu *menu)
3714 GtkRequisition requisition;
3715 GtkMenuPrivate *private;
3720 GdkScreen *pointer_screen;
3721 GdkRectangle monitor;
3722 gint scroll_arrow_height;
3724 g_return_if_fail (GTK_IS_MENU (menu));
3726 widget = GTK_WIDGET (menu);
3728 screen = gtk_widget_get_screen (widget);
3729 gdk_display_get_pointer (gdk_screen_get_display (screen),
3730 &pointer_screen, &x, &y, NULL);
3732 gtk_widget_style_get (GTK_WIDGET (menu),
3733 "scroll-arrow-vlength", &scroll_arrow_height,
3736 /* We need the requisition to figure out the right place to
3737 * popup the menu. In fact, we always need to ask here, since
3738 * if a size_request was queued while we weren't popped up,
3739 * the requisition won't have been recomputed yet.
3741 gtk_widget_size_request (widget, &requisition);
3743 if (pointer_screen != screen)
3745 /* Pointer is on a different screen; roughly center the
3746 * menu on the screen. If someone was using multiscreen
3747 * + Xinerama together they'd probably want something
3748 * fancier; but that is likely to be vanishingly rare.
3750 x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
3751 y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
3754 private = gtk_menu_get_private (menu);
3755 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3757 private->initially_pushed_in = FALSE;
3759 /* Set the type hint here to allow custom position functions to set a different hint */
3760 if (!GTK_WIDGET_VISIBLE (menu->toplevel))
3761 gtk_window_set_type_hint (GTK_WINDOW (menu->toplevel), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
3763 if (menu->position_func)
3765 (* menu->position_func) (menu, &x, &y, &private->initially_pushed_in,
3766 menu->position_func_data);
3767 if (private->monitor_num < 0)
3768 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3770 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3774 gint space_left, space_right, space_above, space_below;
3777 gint xthickness = widget->style->xthickness;
3778 gint ythickness = widget->style->ythickness;
3779 gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
3781 /* The placement of popup menus horizontally works like this (with
3782 * RTL in parentheses)
3784 * - If there is enough room to the right (left) of the mouse cursor,
3785 * position the menu there.
3787 * - Otherwise, if if there is enough room to the left (right) of the
3788 * mouse cursor, position the menu there.
3790 * - Otherwise if the menu is smaller than the monitor, position it
3791 * on the side of the mouse cursor that has the most space available
3793 * - Otherwise (if there is simply not enough room for the menu on the
3794 * monitor), position it as far left (right) as possible.
3796 * Positioning in the vertical direction is similar: first try below
3797 * mouse cursor, then above.
3799 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3801 space_left = x - monitor.x;
3802 space_right = monitor.x + monitor.width - x - 1;
3803 space_above = y - monitor.y;
3804 space_below = monitor.y + monitor.height - y - 1;
3806 /* position horizontally */
3808 /* the amount of space we need to position the menu. Note the
3809 * menu is offset "xthickness" pixels
3811 needed_width = requisition.width - xthickness;
3813 if (needed_width <= space_left ||
3814 needed_width <= space_right)
3816 if ((rtl && needed_width <= space_left) ||
3817 (!rtl && needed_width > space_right))
3820 x = x + xthickness - requisition.width + 1;
3824 /* position right */
3828 /* x is clamped on-screen further down */
3830 else if (requisition.width <= monitor.width)
3832 /* the menu is too big to fit on either side of the mouse
3833 * cursor, but smaller than the monitor. Position it on
3834 * the side that has the most space
3836 if (space_left > space_right)
3844 x = monitor.x + monitor.width - requisition.width;
3847 else /* menu is simply too big for the monitor */
3852 x = monitor.x + monitor.width - requisition.width;
3861 /* Position vertically. The algorithm is the same as above, but
3862 * simpler because we don't have to take RTL into account.
3864 needed_height = requisition.height - ythickness;
3866 if (needed_height <= space_above ||
3867 needed_height <= space_below)
3869 if (needed_height <= space_below)
3872 y = y + ythickness - requisition.height + 1;
3874 y = CLAMP (y, monitor.y,
3875 monitor.y + monitor.height - requisition.height);
3877 else if (needed_height > space_below && needed_height > space_above)
3879 if (space_below >= space_above)
3880 y = monitor.y + monitor.height - requisition.height;
3892 if (private->initially_pushed_in)
3894 menu_height = GTK_WIDGET (menu)->requisition.height;
3896 if (y + menu_height > monitor.y + monitor.height)
3898 scroll_offset -= y + menu_height - (monitor.y + monitor.height);
3899 y = (monitor.y + monitor.height) - menu_height;
3904 scroll_offset += monitor.y - y;
3909 /* FIXME: should this be done in the various position_funcs ? */
3910 x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
3912 if (GTK_MENU_SHELL (menu)->active)
3914 private->have_position = TRUE;
3919 if (y + requisition.height > monitor.y + monitor.height)
3920 requisition.height = (monitor.y + monitor.height) - y;
3924 scroll_offset += monitor.y - y;
3925 requisition.height -= monitor.y - y;
3929 if (scroll_offset > 0)
3930 scroll_offset += scroll_arrow_height;
3932 gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window),
3935 if (!GTK_MENU_SHELL (menu)->active)
3937 gtk_window_resize (GTK_WINDOW (menu->tearoff_window),
3938 requisition.width, requisition.height);
3941 menu->scroll_offset = scroll_offset;
3945 gtk_menu_remove_scroll_timeout (GtkMenu *menu)
3947 if (menu->timeout_id)
3949 g_source_remove (menu->timeout_id);
3950 menu->timeout_id = 0;
3955 gtk_menu_stop_scrolling (GtkMenu *menu)
3957 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3958 gboolean touchscreen_mode;
3960 gtk_menu_remove_scroll_timeout (menu);
3962 g_object_get (G_OBJECT (settings),
3963 "gtk-touchscreen-mode", &touchscreen_mode,
3966 if (!touchscreen_mode)
3968 menu->upper_arrow_prelight = FALSE;
3969 menu->lower_arrow_prelight = FALSE;
3974 gtk_menu_scroll_to (GtkMenu *menu,
3979 gint view_width, view_height;
3982 guint vertical_padding;
3983 guint horizontal_padding;
3984 gboolean double_arrows;
3985 gint scroll_arrow_height;
3987 widget = GTK_WIDGET (menu);
3989 if (menu->tearoff_active &&
3990 menu->tearoff_adjustment &&
3991 (menu->tearoff_adjustment->value != offset))
3993 menu->tearoff_adjustment->value =
3995 0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
3996 gtk_adjustment_value_changed (menu->tearoff_adjustment);
3999 /* Move/resize the viewport according to arrows: */
4000 view_width = widget->allocation.width;
4001 view_height = widget->allocation.height;
4003 gtk_widget_style_get (GTK_WIDGET (menu),
4004 "vertical-padding", &vertical_padding,
4005 "horizontal-padding", &horizontal_padding,
4006 "scroll-arrow-vlength", &scroll_arrow_height,
4009 double_arrows = get_double_arrows (menu);
4011 border_width = GTK_CONTAINER (menu)->border_width;
4012 view_width -= (border_width + widget->style->xthickness + horizontal_padding) * 2;
4013 view_height -= (border_width + widget->style->ythickness + vertical_padding) * 2;
4014 menu_height = widget->requisition.height -
4015 (border_width + widget->style->ythickness + vertical_padding) * 2;
4017 x = border_width + widget->style->xthickness + horizontal_padding;
4018 y = border_width + widget->style->ythickness + vertical_padding;
4020 if (double_arrows && !menu->tearoff_active)
4022 if (view_height < menu_height ||
4023 (offset > 0 && menu->scroll_offset > 0) ||
4024 (offset < 0 && menu->scroll_offset < 0))
4026 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4027 GtkStateType upper_arrow_previous_state = priv->upper_arrow_state;
4028 GtkStateType lower_arrow_previous_state = priv->lower_arrow_state;
4030 if (!menu->upper_arrow_visible || !menu->lower_arrow_visible)
4031 gtk_widget_queue_draw (GTK_WIDGET (menu));
4033 view_height -= 2 * scroll_arrow_height;
4034 y += scroll_arrow_height;
4036 menu->upper_arrow_visible = menu->lower_arrow_visible = TRUE;
4039 priv->upper_arrow_state = GTK_STATE_INSENSITIVE;
4041 priv->upper_arrow_state = menu->upper_arrow_prelight ?
4042 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4044 if (offset >= menu_height - view_height)
4045 priv->lower_arrow_state = GTK_STATE_INSENSITIVE;
4047 priv->lower_arrow_state = menu->lower_arrow_prelight ?
4048 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4050 if ((priv->upper_arrow_state != upper_arrow_previous_state) ||
4051 (priv->lower_arrow_state != lower_arrow_previous_state))
4052 gtk_widget_queue_draw (GTK_WIDGET (menu));
4054 if (upper_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4055 priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4057 /* At the upper border, possibly remove timeout */
4058 if (menu->scroll_step < 0)
4060 gtk_menu_stop_scrolling (menu);
4061 gtk_widget_queue_draw (GTK_WIDGET (menu));
4065 if (lower_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4066 priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4068 /* At the lower border, possibly remove timeout */
4069 if (menu->scroll_step > 0)
4071 gtk_menu_stop_scrolling (menu);
4072 gtk_widget_queue_draw (GTK_WIDGET (menu));
4076 else if (menu->upper_arrow_visible || menu->lower_arrow_visible)
4080 menu->upper_arrow_visible = menu->lower_arrow_visible = FALSE;
4081 menu->upper_arrow_prelight = menu->lower_arrow_prelight = FALSE;
4083 gtk_menu_stop_scrolling (menu);
4084 gtk_widget_queue_draw (GTK_WIDGET (menu));
4087 else if (!menu->tearoff_active)
4089 gboolean last_visible;
4091 last_visible = menu->upper_arrow_visible;
4092 menu->upper_arrow_visible = offset > 0;
4094 if (menu->upper_arrow_visible)
4095 view_height -= scroll_arrow_height;
4097 if ((last_visible != menu->upper_arrow_visible) &&
4098 !menu->upper_arrow_visible)
4100 menu->upper_arrow_prelight = FALSE;
4102 /* If we hid the upper arrow, possibly remove timeout */
4103 if (menu->scroll_step < 0)
4105 gtk_menu_stop_scrolling (menu);
4106 gtk_widget_queue_draw (GTK_WIDGET (menu));
4110 last_visible = menu->lower_arrow_visible;
4111 menu->lower_arrow_visible = offset < menu_height - view_height;
4113 if (menu->lower_arrow_visible)
4114 view_height -= scroll_arrow_height;
4116 if ((last_visible != menu->lower_arrow_visible) &&
4117 !menu->lower_arrow_visible)
4119 menu->lower_arrow_prelight = FALSE;
4121 /* If we hid the lower arrow, possibly remove timeout */
4122 if (menu->scroll_step > 0)
4124 gtk_menu_stop_scrolling (menu);
4125 gtk_widget_queue_draw (GTK_WIDGET (menu));
4129 if (menu->upper_arrow_visible)
4130 y += scroll_arrow_height;
4133 /* Scroll the menu: */
4134 if (GTK_WIDGET_REALIZED (menu))
4135 gdk_window_move (menu->bin_window, 0, -offset);
4137 if (GTK_WIDGET_REALIZED (menu))
4138 gdk_window_move_resize (menu->view_window,
4144 menu->scroll_offset = offset;
4148 compute_child_offset (GtkMenu *menu,
4149 GtkWidget *menu_item,
4152 gboolean *is_last_child)
4154 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4155 gint item_top_attach;
4156 gint item_bottom_attach;
4157 gint child_offset = 0;
4160 get_effective_child_attach (menu_item, NULL, NULL,
4161 &item_top_attach, &item_bottom_attach);
4163 /* there is a possibility that we get called before _size_request, so
4164 * check the height table for safety.
4166 if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
4169 /* when we have a row with only invisible children, it's height will
4170 * be zero, so there's no need to check WIDGET_VISIBLE here
4172 for (i = 0; i < item_top_attach; i++)
4173 child_offset += priv->heights[i];
4176 *is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
4178 *offset = child_offset;
4180 *height = priv->heights[item_top_attach];
4186 gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
4187 GtkWidget *menu_item)
4190 gint child_offset, child_height;
4194 gboolean last_child = 0;
4196 menu = GTK_MENU (menu_shell);
4198 /* We need to check if the selected item fully visible.
4199 * If not we need to scroll the menu so that it becomes fully
4203 if (compute_child_offset (menu, menu_item,
4204 &child_offset, &child_height, &last_child))
4206 guint vertical_padding;
4207 gboolean double_arrows;
4208 gint scroll_arrow_height;
4210 y = menu->scroll_offset;
4211 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
4213 gtk_widget_style_get (GTK_WIDGET (menu),
4214 "vertical-padding", &vertical_padding,
4215 "scroll-arrow-vlength", &scroll_arrow_height,
4218 double_arrows = get_double_arrows (menu);
4220 height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness + 2*vertical_padding;
4222 if (child_offset < y)
4224 /* Ignore the enter event we might get if the pointer is on the menu
4226 menu_shell->ignore_enter = TRUE;
4227 gtk_menu_scroll_to (menu, child_offset);
4232 if (menu->upper_arrow_visible && !menu->tearoff_active)
4233 arrow_height += scroll_arrow_height;
4234 if (menu->lower_arrow_visible && !menu->tearoff_active)
4235 arrow_height += scroll_arrow_height;
4237 if (child_offset + child_height > y + height - arrow_height)
4240 if ((!last_child && !menu->tearoff_active) || double_arrows)
4241 arrow_height += scroll_arrow_height;
4243 y = child_offset + child_height - height + arrow_height;
4244 if (((y > 0) && !menu->tearoff_active) || double_arrows)
4246 /* Need upper arrow */
4247 arrow_height += scroll_arrow_height;
4248 y = child_offset + child_height - height + arrow_height;
4250 /* Ignore the enter event we might get if the pointer is on the menu
4252 menu_shell->ignore_enter = TRUE;
4253 gtk_menu_scroll_to (menu, y);
4261 gtk_menu_select_item (GtkMenuShell *menu_shell,
4262 GtkWidget *menu_item)
4264 GtkMenu *menu = GTK_MENU (menu_shell);
4266 if (GTK_WIDGET_REALIZED (GTK_WIDGET (menu)))
4267 gtk_menu_scroll_item_visible (menu_shell, menu_item);
4269 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
4273 /* Reparent the menu, taking care of the refcounting
4275 * If unrealize is true we force a unrealize while reparenting the parent.
4276 * This can help eliminate flicker in some cases.
4278 * What happens is that when the menu is unrealized and then re-realized,
4279 * the allocations are as follows:
4281 * parent - 1x1 at (0,0)
4282 * child1 - 100x20 at (0,0)
4283 * child2 - 100x20 at (0,20)
4284 * child3 - 100x20 at (0,40)
4286 * That is, the parent is small but the children are full sized. Then,
4287 * when the queued_resize gets processed, the parent gets resized to
4290 * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
4291 * contains the following logic:
4293 * - if a move or resize operation on a window would change the clip
4294 * region on the children, then before the window is resized
4295 * the background for children is temporarily set to None, the
4296 * move/resize done, and the background for the children restored.
4298 * So, at the point where the parent is resized to final size, the
4299 * background for the children is temporarily None, and thus they
4300 * are not cleared to the background color and the previous background
4301 * (the image of the menu) is left in place.
4304 gtk_menu_reparent (GtkMenu *menu,
4305 GtkWidget *new_parent,
4308 GtkObject *object = GTK_OBJECT (menu);
4309 GtkWidget *widget = GTK_WIDGET (menu);
4310 gboolean was_floating = g_object_is_floating (object);
4312 g_object_ref_sink (object);
4316 g_object_ref (object);
4317 gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
4318 gtk_container_add (GTK_CONTAINER (new_parent), widget);
4319 g_object_unref (object);
4322 gtk_widget_reparent (GTK_WIDGET (menu), new_parent);
4325 g_object_force_floating (G_OBJECT (object));
4327 g_object_unref (object);
4331 gtk_menu_show_all (GtkWidget *widget)
4333 /* Show children, but not self. */
4334 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
4339 gtk_menu_hide_all (GtkWidget *widget)
4341 /* Hide children, but not self. */
4342 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
4346 * gtk_menu_set_screen:
4347 * @menu: a #GtkMenu.
4348 * @screen: a #GdkScreen, or %NULL if the screen should be
4349 * determined by the widget the menu is attached to.
4351 * Sets the #GdkScreen on which the menu will be displayed.
4356 gtk_menu_set_screen (GtkMenu *menu,
4359 g_return_if_fail (GTK_IS_MENU (menu));
4360 g_return_if_fail (!screen || GDK_IS_SCREEN (screen));
4362 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-screen"), screen);
4366 menu_change_screen (menu, screen);
4370 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
4372 attach_widget_screen_changed (attach_widget, NULL, menu);
4378 * @menu: a #GtkMenu.
4379 * @child: a #GtkMenuItem.
4380 * @left_attach: The column number to attach the left side of the item to.
4381 * @right_attach: The column number to attach the right side of the item to.
4382 * @top_attach: The row number to attach the top of the item to.
4383 * @bottom_attach: The row number to attach the bottom of the item to.
4385 * Adds a new #GtkMenuItem to a (table) menu. The number of 'cells' that
4386 * an item will occupy is specified by @left_attach, @right_attach,
4387 * @top_attach and @bottom_attach. These each represent the leftmost,
4388 * rightmost, uppermost and lower column and row numbers of the table.
4389 * (Columns and rows are indexed from zero).
4391 * Note that this function is not related to gtk_menu_detach().
4396 gtk_menu_attach (GtkMenu *menu,
4401 guint bottom_attach)
4403 GtkMenuShell *menu_shell;
4405 g_return_if_fail (GTK_IS_MENU (menu));
4406 g_return_if_fail (GTK_IS_MENU_ITEM (child));
4407 g_return_if_fail (child->parent == NULL ||
4408 child->parent == GTK_WIDGET (menu));
4409 g_return_if_fail (left_attach < right_attach);
4410 g_return_if_fail (top_attach < bottom_attach);
4412 menu_shell = GTK_MENU_SHELL (menu);
4416 AttachInfo *ai = get_attach_info (child);
4418 ai->left_attach = left_attach;
4419 ai->right_attach = right_attach;
4420 ai->top_attach = top_attach;
4421 ai->bottom_attach = bottom_attach;
4423 menu_shell->children = g_list_append (menu_shell->children, child);
4425 gtk_widget_set_parent (child, GTK_WIDGET (menu));
4427 menu_queue_resize (menu);
4431 gtk_container_child_set (GTK_CONTAINER (child->parent), child,
4432 "left-attach", left_attach,
4433 "right-attach", right_attach,
4434 "top-attach", top_attach,
4435 "bottom-attach", bottom_attach,
4441 gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
4445 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
4446 "gtk-menu-popup-delay", &popup_delay,
4453 find_child_containing (GtkMenuShell *menu_shell,
4461 /* find a child which includes the area given by
4462 * left, right, top, bottom.
4465 for (list = menu_shell->children; list; list = list->next)
4469 if (!_gtk_menu_item_is_selectable (list->data))
4472 get_effective_child_attach (list->data, &l, &r, &t, &b);
4474 if (l <= left && right <= r
4475 && t <= top && bottom <= b)
4476 return GTK_WIDGET (list->data);
4483 gtk_menu_move_current (GtkMenuShell *menu_shell,
4484 GtkMenuDirectionType direction)
4486 GtkMenu *menu = GTK_MENU (menu_shell);
4489 GtkWidget *match = NULL;
4491 if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
4495 case GTK_MENU_DIR_CHILD:
4496 direction = GTK_MENU_DIR_PARENT;
4498 case GTK_MENU_DIR_PARENT:
4499 direction = GTK_MENU_DIR_CHILD;
4505 /* use special table menu key bindings */
4506 if (menu_shell->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
4508 get_effective_child_attach (menu_shell->active_menu_item, &l, &r, &t, &b);
4510 if (direction == GTK_MENU_DIR_NEXT)
4512 for (i = b; i < gtk_menu_get_n_rows (menu); i++)
4514 match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
4522 for (i = 0; i < t; i++)
4524 match = find_child_containing (menu_shell,
4525 l, l + 1, i, i + 1);
4531 else if (direction == GTK_MENU_DIR_PREV)
4533 for (i = t; i > 0; i--)
4535 match = find_child_containing (menu_shell, l, l + 1, i - 1, i);
4543 for (i = gtk_menu_get_n_rows (menu); i > b; i--)
4545 match = find_child_containing (menu_shell,
4546 l, l + 1, i - 1, i);
4552 else if (direction == GTK_MENU_DIR_PARENT)
4554 /* we go one left if possible */
4556 match = find_child_containing (menu_shell, l - 1, l, t, t + 1);
4560 GtkWidget *parent = menu_shell->parent_menu_shell;
4563 || g_list_length (GTK_MENU_SHELL (parent)->children) <= 1)
4564 match = menu_shell->active_menu_item;
4567 else if (direction == GTK_MENU_DIR_CHILD)
4569 /* we go one right if possible */
4570 if (r < gtk_menu_get_n_columns (menu))
4571 match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
4575 GtkWidget *parent = menu_shell->parent_menu_shell;
4577 if (! GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu &&
4579 g_list_length (GTK_MENU_SHELL (parent)->children) <= 1))
4580 match = menu_shell->active_menu_item;
4586 gtk_menu_shell_select_item (menu_shell, match);
4591 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
4595 get_visible_size (GtkMenu *menu)
4597 GtkWidget *widget = GTK_WIDGET (menu);
4598 GtkContainer *container = GTK_CONTAINER (menu);
4599 gint scroll_arrow_height;
4601 gint menu_height = (widget->allocation.height
4602 - 2 * (container->border_width
4603 + widget->style->ythickness));
4605 gtk_widget_style_get (GTK_WIDGET (menu),
4606 "scroll-arrow-vlength", &scroll_arrow_height,
4609 if (menu->upper_arrow_visible && !menu->tearoff_active)
4610 menu_height -= scroll_arrow_height;
4611 if (menu->lower_arrow_visible && !menu->tearoff_active)
4612 menu_height -= scroll_arrow_height;
4617 /* Find the sensitive on-screen child containing @y, or if none,
4618 * the nearest selectable onscreen child. (%NULL if none)
4621 child_at (GtkMenu *menu,
4624 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4625 GtkWidget *child = NULL;
4626 gint child_offset = 0;
4629 gint lower, upper; /* Onscreen bounds */
4631 menu_height = get_visible_size (menu);
4632 lower = menu->scroll_offset;
4633 upper = menu->scroll_offset + menu_height;
4635 for (children = menu_shell->children; children; children = children->next)
4637 if (GTK_WIDGET_VISIBLE (children->data))
4639 GtkRequisition child_requisition;
4641 gtk_widget_size_request (children->data, &child_requisition);
4643 if (_gtk_menu_item_is_selectable (children->data) &&
4644 child_offset >= lower &&
4645 child_offset + child_requisition.height <= upper)
4647 child = children->data;
4649 if (child_offset + child_requisition.height > y &&
4650 !GTK_IS_TEAROFF_MENU_ITEM (child))
4654 child_offset += child_requisition.height;
4662 get_menu_height (GtkMenu *menu)
4665 GtkWidget *widget = GTK_WIDGET (menu);
4666 gint scroll_arrow_height;
4668 gtk_widget_style_get (GTK_WIDGET (menu),
4669 "scroll-arrow-vlength", &scroll_arrow_height,
4672 height = widget->requisition.height;
4673 height -= (GTK_CONTAINER (widget)->border_width + widget->style->ythickness) * 2;
4675 if (menu->upper_arrow_visible && !menu->tearoff_active)
4676 height -= scroll_arrow_height;
4678 if (menu->lower_arrow_visible && !menu->tearoff_active)
4679 height -= scroll_arrow_height;
4685 gtk_menu_real_move_scroll (GtkMenu *menu,
4688 gint page_size = get_visible_size (menu);
4689 gint end_position = get_menu_height (menu);
4690 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4691 gint scroll_arrow_height;
4693 gtk_widget_style_get (GTK_WIDGET (menu),
4694 "scroll-arrow-vlength", &scroll_arrow_height,
4699 case GTK_SCROLL_PAGE_UP:
4700 case GTK_SCROLL_PAGE_DOWN:
4704 gint child_offset = 0;
4705 gboolean old_upper_arrow_visible;
4708 if (type == GTK_SCROLL_PAGE_UP)
4713 if (menu_shell->active_menu_item)
4717 compute_child_offset (menu, menu_shell->active_menu_item,
4718 &child_offset, &child_height, NULL);
4719 child_offset += child_height / 2;
4722 menu_shell->ignore_enter = TRUE;
4723 old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4724 old_offset = menu->scroll_offset;
4726 new_offset = menu->scroll_offset + step;
4727 new_offset = CLAMP (new_offset, 0, end_position - page_size);
4729 gtk_menu_scroll_to (menu, new_offset);
4731 if (menu_shell->active_menu_item)
4733 GtkWidget *new_child;
4734 gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4736 if (menu->scroll_offset != old_offset)
4737 step = menu->scroll_offset - old_offset;
4739 step -= (new_upper_arrow_visible - old_upper_arrow_visible) * scroll_arrow_height;
4741 new_child = child_at (menu, child_offset + step);
4743 gtk_menu_shell_select_item (menu_shell, new_child);
4747 case GTK_SCROLL_START:
4748 /* Ignore the enter event we might get if the pointer is on the menu
4750 menu_shell->ignore_enter = TRUE;
4751 gtk_menu_scroll_to (menu, 0);
4752 gtk_menu_shell_select_first (menu_shell, TRUE);
4754 case GTK_SCROLL_END:
4755 /* Ignore the enter event we might get if the pointer is on the menu
4757 menu_shell->ignore_enter = TRUE;
4758 gtk_menu_scroll_to (menu, end_position - page_size);
4759 _gtk_menu_shell_select_last (menu_shell, TRUE);
4768 * gtk_menu_set_monitor:
4770 * @monitor_num: the number of the monitor on which the menu should
4773 * Informs GTK+ on which monitor a menu should be popped up.
4774 * See gdk_screen_get_monitor_geometry().
4776 * This function should be called from a #GtkMenuPositionFunc if the
4777 * menu should not appear on the same monitor as the pointer. This
4778 * information can't be reliably inferred from the coordinates returned
4779 * by a #GtkMenuPositionFunc, since, for very long menus, these coordinates
4780 * may extend beyond the monitor boundaries or even the screen boundaries.
4785 gtk_menu_set_monitor (GtkMenu *menu,
4788 GtkMenuPrivate *priv;
4789 g_return_if_fail (GTK_IS_MENU (menu));
4791 priv = gtk_menu_get_private (menu);
4793 priv->monitor_num = monitor_num;
4797 * gtk_menu_get_for_attach_widget:
4798 * @widget: a #GtkWidget
4800 * Returns a list of the menus which are attached to this widget.
4801 * This list is owned by GTK+ and must not be modified.
4803 * Return value: the list of menus attached to his widget.
4808 gtk_menu_get_for_attach_widget (GtkWidget *widget)
4812 g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
4814 list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
4819 gtk_menu_grab_notify (GtkWidget *widget,
4820 gboolean was_grabbed)
4822 GtkWidget *toplevel;
4823 GtkWindowGroup *group;
4826 toplevel = gtk_widget_get_toplevel (widget);
4827 group = gtk_window_get_group (GTK_WINDOW (toplevel));
4828 grab = _gtk_window_group_get_current_grab (group);
4832 if (GTK_MENU_SHELL (widget)->active && !GTK_IS_MENU_SHELL (grab))
4833 gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
4837 #define __GTK_MENU_C__
4838 #include "gtkaliasdef.c"