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 attach_widget_hierarchy_changed (GtkWidget *attach_widget,
1009 GtkWidget *previous_toplevel,
1012 GtkMenu *menu = GTK_MENU (data);
1013 GtkWidget *new_toplevel = gtk_widget_get_toplevel (attach_widget);
1015 if (g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1017 /* If there is an explicit screen set, then don't set WM_TRANSIENT_FOR.
1018 * Because, what would happen if the attach widget moved to a different
1019 * screen on a different display? The menu wouldn't move along with it,
1020 * so we just make it the responsibility of whoever set the screen to
1021 * also set WM_TRANSIENT_FOR.
1026 if (menu->toplevel && !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen") &&
1027 (!new_toplevel || GTK_IS_WINDOW (new_toplevel)))
1029 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel),
1030 GTK_WINDOW (new_toplevel));
1035 gtk_menu_attach_to_widget (GtkMenu *menu,
1036 GtkWidget *attach_widget,
1037 GtkMenuDetachFunc detacher)
1039 GtkMenuAttachData *data;
1042 g_return_if_fail (GTK_IS_MENU (menu));
1043 g_return_if_fail (GTK_IS_WIDGET (attach_widget));
1045 /* keep this function in sync with gtk_widget_set_parent()
1048 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1051 g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
1052 g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
1056 g_object_ref_sink (menu);
1058 data = g_new (GtkMenuAttachData, 1);
1059 data->attach_widget = attach_widget;
1061 g_signal_connect (attach_widget, "screen_changed",
1062 G_CALLBACK (attach_widget_screen_changed), menu);
1063 attach_widget_screen_changed (attach_widget, NULL, menu);
1065 g_signal_connect (attach_widget, "hierarchy_changed",
1066 G_CALLBACK (attach_widget_hierarchy_changed), menu);
1067 attach_widget_hierarchy_changed (attach_widget, NULL, menu);
1069 data->detacher = detacher;
1070 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
1071 list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
1072 if (!g_list_find (list, menu))
1074 list = g_list_prepend (list, menu);
1076 g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1078 if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL)
1079 gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL);
1081 /* we don't need to set the style here, since
1082 * we are a toplevel widget.
1085 /* Fallback title for menu comes from attach widget */
1086 gtk_menu_update_title (menu);
1090 gtk_menu_get_attach_widget (GtkMenu *menu)
1092 GtkMenuAttachData *data;
1094 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1096 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1098 return data->attach_widget;
1103 gtk_menu_detach (GtkMenu *menu)
1105 GtkMenuAttachData *data;
1108 g_return_if_fail (GTK_IS_MENU (menu));
1110 /* keep this function in sync with gtk_widget_unparent()
1112 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1115 g_warning ("gtk_menu_detach(): menu is not attached");
1118 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
1120 g_signal_handlers_disconnect_by_func (data->attach_widget,
1121 (gpointer) attach_widget_screen_changed,
1123 g_signal_handlers_disconnect_by_func (data->attach_widget,
1124 (gpointer) attach_widget_hierarchy_changed,
1126 attach_widget_hierarchy_changed (data->attach_widget, NULL, menu);
1129 data->detacher (data->attach_widget, menu);
1130 list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
1131 list = g_list_remove (list, menu);
1133 g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1135 g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
1137 if (GTK_WIDGET_REALIZED (menu))
1138 gtk_widget_unrealize (GTK_WIDGET (menu));
1142 /* Fallback title for menu comes from attach widget */
1143 gtk_menu_update_title (menu);
1145 g_object_unref (menu);
1149 gtk_menu_remove (GtkContainer *container,
1154 g_return_if_fail (GTK_IS_MENU (container));
1155 g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1157 menu = GTK_MENU (container);
1159 /* Clear out old_active_menu_item if it matches the item we are removing
1161 if (menu->old_active_menu_item == widget)
1163 g_object_unref (menu->old_active_menu_item);
1164 menu->old_active_menu_item = NULL;
1167 GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
1168 g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
1170 menu_queue_resize (menu);
1176 return g_object_new (GTK_TYPE_MENU, NULL);
1180 gtk_menu_real_insert (GtkMenuShell *menu_shell,
1184 GtkMenu *menu = GTK_MENU (menu_shell);
1185 AttachInfo *ai = get_attach_info (child);
1187 ai->left_attach = -1;
1188 ai->right_attach = -1;
1189 ai->top_attach = -1;
1190 ai->bottom_attach = -1;
1192 if (GTK_WIDGET_REALIZED (menu_shell))
1193 gtk_widget_set_parent_window (child, menu->bin_window);
1195 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
1197 menu_queue_resize (menu);
1201 gtk_menu_tearoff_bg_copy (GtkMenu *menu)
1206 widget = GTK_WIDGET (menu);
1212 GdkGCValues gc_values;
1214 menu->tearoff_active = FALSE;
1215 menu->saved_scroll_offset = menu->scroll_offset;
1217 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
1218 gc = gdk_gc_new_with_values (widget->window,
1219 &gc_values, GDK_GC_SUBWINDOW);
1221 gdk_drawable_get_size (menu->tearoff_window->window, &width, &height);
1223 pixmap = gdk_pixmap_new (menu->tearoff_window->window,
1228 gdk_draw_drawable (pixmap, gc,
1229 menu->tearoff_window->window,
1230 0, 0, 0, 0, -1, -1);
1231 g_object_unref (gc);
1233 gtk_widget_set_size_request (menu->tearoff_window,
1237 gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE);
1238 g_object_unref (pixmap);
1243 popup_grab_on_window (GdkWindow *window,
1244 guint32 activate_time,
1245 gboolean grab_keyboard)
1247 if ((gdk_pointer_grab (window, TRUE,
1248 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1249 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
1250 GDK_POINTER_MOTION_MASK,
1251 NULL, NULL, activate_time) == 0))
1253 if (!grab_keyboard ||
1254 gdk_keyboard_grab (window, TRUE,
1255 activate_time) == 0)
1259 gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
1270 * @menu: a #GtkMenu.
1271 * @parent_menu_shell: the menu shell containing the triggering menu item, or %NULL
1272 * @parent_menu_item: the menu item whose activation triggered the popup, or %NULL
1273 * @func: a user supplied function used to position the menu, or %NULL
1274 * @data: user supplied data to be passed to @func.
1275 * @button: the mouse button which was pressed to initiate the event.
1276 * @activate_time: the time at which the activation event occurred.
1278 * Displays a menu and makes it available for selection. Applications can use
1279 * this function to display context-sensitive menus, and will typically supply
1280 * %NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
1281 * parameters. The default menu positioning function will position the menu
1282 * at the current mouse cursor position.
1284 * The @button parameter should be the mouse button pressed to initiate
1285 * the menu popup. If the menu popup was initiated by something other than
1286 * a mouse button press, such as a mouse button release or a keypress,
1287 * @button should be 0.
1289 * The @activate_time parameter should be the time stamp of the event that
1290 * initiated the popup. If such an event is not available, use
1291 * gtk_get_current_event_time() instead.
1295 gtk_menu_popup (GtkMenu *menu,
1296 GtkWidget *parent_menu_shell,
1297 GtkWidget *parent_menu_item,
1298 GtkMenuPositionFunc func,
1301 guint32 activate_time)
1304 GtkWidget *xgrab_shell;
1306 GdkEvent *current_event;
1307 GtkMenuShell *menu_shell;
1308 gboolean grab_keyboard;
1309 GtkMenuPrivate *priv;
1311 g_return_if_fail (GTK_IS_MENU (menu));
1313 widget = GTK_WIDGET (menu);
1314 menu_shell = GTK_MENU_SHELL (menu);
1315 priv = gtk_menu_get_private (menu);
1317 menu_shell->parent_menu_shell = parent_menu_shell;
1319 priv->seen_item_enter = FALSE;
1321 /* Find the last viewable ancestor, and make an X grab on it
1323 parent = GTK_WIDGET (menu);
1327 gboolean viewable = TRUE;
1328 GtkWidget *tmp = parent;
1332 if (!GTK_WIDGET_MAPPED (tmp))
1341 xgrab_shell = parent;
1343 parent = GTK_MENU_SHELL (parent)->parent_menu_shell;
1346 /* We want to receive events generated when we map the menu; unfortunately,
1347 * since there is probably already an implicit grab in place from the
1348 * button that the user used to pop up the menu, we won't receive then --
1349 * in particular, the EnterNotify when the menu pops up under the pointer.
1351 * If we are grabbing on a parent menu shell, no problem; just grab on
1352 * that menu shell first before popping up the window with owner_events = TRUE.
1354 * When grabbing on the menu itself, things get more convuluted - we
1355 * we do an explicit grab on a specially created window with
1356 * owner_events = TRUE, which we override further down with a grab
1357 * on the menu. (We can't grab on the menu until it is mapped; we
1358 * probably could just leave the grab on the other window, with a
1359 * little reorganization of the code in gtkmenu*).
1361 grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
1362 gtk_window_set_accept_focus (GTK_WINDOW (menu->toplevel), grab_keyboard);
1364 if (xgrab_shell && xgrab_shell != widget)
1366 if (popup_grab_on_window (xgrab_shell->window, activate_time, grab_keyboard))
1367 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1371 GdkWindow *transfer_window;
1373 xgrab_shell = widget;
1374 transfer_window = menu_grab_transfer_window_get (menu);
1375 if (popup_grab_on_window (transfer_window, activate_time, grab_keyboard))
1376 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1379 if (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)
1381 /* We failed to make our pointer/keyboard grab. Rather than leaving the user
1382 * with a stuck up window, we just abort here. Presumably the user will
1385 menu_shell->parent_menu_shell = NULL;
1386 menu_grab_transfer_window_destroy (menu);
1390 menu_shell->active = TRUE;
1391 menu_shell->button = button;
1393 /* If we are popping up the menu from something other than, a button
1394 * press then, as a heuristic, we ignore enter events for the menu
1395 * until we get a MOTION_NOTIFY.
1398 current_event = gtk_get_current_event ();
1401 if ((current_event->type != GDK_BUTTON_PRESS) &&
1402 (current_event->type != GDK_ENTER_NOTIFY))
1403 menu_shell->ignore_enter = TRUE;
1405 gdk_event_free (current_event);
1408 menu_shell->ignore_enter = TRUE;
1412 gtk_menu_tearoff_bg_copy (menu);
1414 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1417 if (parent_menu_shell)
1419 GtkWidget *toplevel;
1421 toplevel = gtk_widget_get_toplevel (parent_menu_shell);
1422 if (GTK_IS_WINDOW (toplevel))
1423 gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
1424 GTK_WINDOW (menu->toplevel));
1427 menu->parent_menu_item = parent_menu_item;
1428 menu->position_func = func;
1429 menu->position_func_data = data;
1430 menu_shell->activate_time = activate_time;
1432 /* We need to show the menu here rather in the init function because
1433 * code expects to be able to tell if the menu is onscreen by
1434 * looking at the GTK_WIDGET_VISIBLE (menu)
1436 gtk_widget_show (GTK_WIDGET (menu));
1438 /* Position the menu, possibly changing the size request
1440 gtk_menu_position (menu);
1442 /* Compute the size of the toplevel and realize it so we
1443 * can scroll correctly.
1446 GtkRequisition tmp_request;
1447 GtkAllocation tmp_allocation = { 0, };
1449 gtk_widget_size_request (menu->toplevel, &tmp_request);
1451 tmp_allocation.width = tmp_request.width;
1452 tmp_allocation.height = tmp_request.height;
1454 gtk_widget_size_allocate (menu->toplevel, &tmp_allocation);
1456 gtk_widget_realize (GTK_WIDGET (menu));
1459 gtk_menu_scroll_to (menu, menu->scroll_offset);
1461 /* Once everything is set up correctly, map the toplevel window on
1464 gtk_widget_show (menu->toplevel);
1466 if (xgrab_shell == widget)
1467 popup_grab_on_window (widget->window, activate_time, grab_keyboard); /* Should always succeed */
1468 gtk_grab_add (GTK_WIDGET (menu));
1472 gtk_menu_popdown (GtkMenu *menu)
1474 GtkMenuPrivate *private;
1475 GtkMenuShell *menu_shell;
1477 g_return_if_fail (GTK_IS_MENU (menu));
1479 menu_shell = GTK_MENU_SHELL (menu);
1480 private = gtk_menu_get_private (menu);
1482 menu_shell->parent_menu_shell = NULL;
1483 menu_shell->active = FALSE;
1484 menu_shell->ignore_enter = FALSE;
1486 private->have_position = FALSE;
1488 gtk_menu_stop_scrolling (menu);
1490 gtk_menu_stop_navigating_submenu (menu);
1492 if (menu_shell->active_menu_item)
1494 if (menu->old_active_menu_item)
1495 g_object_unref (menu->old_active_menu_item);
1496 menu->old_active_menu_item = menu_shell->active_menu_item;
1497 g_object_ref (menu->old_active_menu_item);
1500 gtk_menu_shell_deselect (menu_shell);
1502 /* The X Grab, if present, will automatically be removed when we hide
1504 gtk_widget_hide (menu->toplevel);
1505 gtk_window_group_add_window (gtk_window_get_group (NULL), GTK_WINDOW (menu->toplevel));
1509 gtk_widget_set_size_request (menu->tearoff_window, -1, -1);
1511 if (GTK_BIN (menu->toplevel)->child)
1513 gtk_menu_reparent (menu, menu->tearoff_hbox, TRUE);
1517 /* We popped up the menu from the tearoff, so we need to
1518 * release the grab - we aren't actually hiding the menu.
1520 if (menu_shell->have_xgrab)
1522 GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu));
1524 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1525 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1529 /* gtk_menu_popdown is called each time a menu item is selected from
1530 * a torn off menu. Only scroll back to the saved position if the
1531 * non-tearoff menu was popped down.
1533 if (!menu->tearoff_active)
1534 gtk_menu_scroll_to (menu, menu->saved_scroll_offset);
1535 menu->tearoff_active = TRUE;
1538 gtk_widget_hide (GTK_WIDGET (menu));
1540 menu_shell->have_xgrab = FALSE;
1541 gtk_grab_remove (GTK_WIDGET (menu));
1543 menu_grab_transfer_window_destroy (menu);
1547 gtk_menu_get_active (GtkMenu *menu)
1552 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1554 if (!menu->old_active_menu_item)
1557 children = GTK_MENU_SHELL (menu)->children;
1561 child = children->data;
1562 children = children->next;
1564 if (GTK_BIN (child)->child)
1569 menu->old_active_menu_item = child;
1570 if (menu->old_active_menu_item)
1571 g_object_ref (menu->old_active_menu_item);
1574 return menu->old_active_menu_item;
1578 gtk_menu_set_active (GtkMenu *menu,
1584 g_return_if_fail (GTK_IS_MENU (menu));
1586 tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
1589 child = tmp_list->data;
1590 if (GTK_BIN (child)->child)
1592 if (menu->old_active_menu_item)
1593 g_object_unref (menu->old_active_menu_item);
1594 menu->old_active_menu_item = child;
1595 g_object_ref (menu->old_active_menu_item);
1601 gtk_menu_set_accel_group (GtkMenu *menu,
1602 GtkAccelGroup *accel_group)
1604 g_return_if_fail (GTK_IS_MENU (menu));
1606 if (menu->accel_group != accel_group)
1608 if (menu->accel_group)
1609 g_object_unref (menu->accel_group);
1610 menu->accel_group = accel_group;
1611 if (menu->accel_group)
1612 g_object_ref (menu->accel_group);
1613 _gtk_menu_refresh_accel_paths (menu, TRUE);
1618 gtk_menu_get_accel_group (GtkMenu *menu)
1620 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1622 return menu->accel_group;
1626 gtk_menu_real_can_activate_accel (GtkWidget *widget,
1629 /* Menu items chain here to figure whether they can activate their
1630 * accelerators. Unlike ordinary widgets, menus allow accel
1631 * activation even if invisible since that's the usual case for
1632 * submenus/popup-menus. however, the state of the attach widget
1633 * affects the "activeness" of the menu.
1635 GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
1638 return gtk_widget_can_activate_accel (awidget, signal_id);
1640 return GTK_WIDGET_IS_SENSITIVE (widget);
1644 * gtk_menu_set_accel_path
1645 * @menu: a valid #GtkMenu
1646 * @accel_path: a valid accelerator path
1648 * Sets an accelerator path for this menu from which accelerator paths
1649 * for its immediate children, its menu items, can be constructed.
1650 * The main purpose of this function is to spare the programmer the
1651 * inconvenience of having to call gtk_menu_item_set_accel_path() on
1652 * each menu item that should support runtime user changable accelerators.
1653 * Instead, by just calling gtk_menu_set_accel_path() on their parent,
1654 * each menu item of this menu, that contains a label describing its purpose,
1655 * automatically gets an accel path assigned. For example, a menu containing
1656 * menu items "New" and "Exit", will, after
1657 * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
1658 * has been called, assign its items the accel paths:
1659 * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
1660 * Assigning accel paths to menu items then enables the user to change
1661 * their accelerators at runtime. More details about accelerator paths
1662 * and their default setups can be found at gtk_accel_map_add_entry().
1665 gtk_menu_set_accel_path (GtkMenu *menu,
1666 const gchar *accel_path)
1668 g_return_if_fail (GTK_IS_MENU (menu));
1670 g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
1672 g_free (menu->accel_path);
1673 menu->accel_path = g_strdup (accel_path);
1674 if (menu->accel_path)
1675 _gtk_menu_refresh_accel_paths (menu, FALSE);
1680 gboolean group_changed;
1684 refresh_accel_paths_foreach (GtkWidget *widget,
1687 AccelPropagation *prop = data;
1689 if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
1690 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
1691 prop->menu->accel_path,
1692 prop->menu->accel_group,
1693 prop->group_changed);
1697 _gtk_menu_refresh_accel_paths (GtkMenu *menu,
1698 gboolean group_changed)
1700 g_return_if_fail (GTK_IS_MENU (menu));
1702 if (menu->accel_path && menu->accel_group)
1704 AccelPropagation prop;
1707 prop.group_changed = group_changed;
1708 gtk_container_foreach (GTK_CONTAINER (menu),
1709 refresh_accel_paths_foreach,
1715 gtk_menu_reposition (GtkMenu *menu)
1717 g_return_if_fail (GTK_IS_MENU (menu));
1719 if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off)
1720 gtk_menu_position (menu);
1724 gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
1727 g_return_if_fail (GTK_IS_MENU (menu));
1729 if (adjustment->value != menu->scroll_offset)
1730 gtk_menu_scroll_to (menu, adjustment->value);
1734 gtk_menu_set_tearoff_hints (GtkMenu *menu,
1737 GdkGeometry geometry_hints;
1739 if (!menu->tearoff_window)
1742 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
1744 gtk_widget_size_request (menu->tearoff_scrollbar, NULL);
1745 width += menu->tearoff_scrollbar->requisition.width;
1748 geometry_hints.min_width = width;
1749 geometry_hints.max_width = width;
1751 geometry_hints.min_height = 0;
1752 geometry_hints.max_height = GTK_WIDGET (menu)->requisition.height;
1754 gtk_window_set_geometry_hints (GTK_WINDOW (menu->tearoff_window),
1757 GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
1761 gtk_menu_update_title (GtkMenu *menu)
1763 if (menu->tearoff_window)
1766 GtkWidget *attach_widget;
1768 title = gtk_menu_get_title (menu);
1771 attach_widget = gtk_menu_get_attach_widget (menu);
1772 if (GTK_IS_MENU_ITEM (attach_widget))
1774 GtkWidget *child = GTK_BIN (attach_widget)->child;
1775 if (GTK_IS_LABEL (child))
1776 title = gtk_label_get_text (GTK_LABEL (child));
1781 gtk_window_set_title (GTK_WINDOW (menu->tearoff_window), title);
1786 gtk_menu_get_toplevel (GtkWidget *menu)
1788 GtkWidget *attach, *toplevel;
1790 attach = gtk_menu_get_attach_widget (GTK_MENU (menu));
1792 if (GTK_IS_MENU_ITEM (attach))
1793 attach = attach->parent;
1795 if (GTK_IS_MENU (attach))
1796 return gtk_menu_get_toplevel (attach);
1797 else if (GTK_IS_WIDGET (attach))
1799 toplevel = gtk_widget_get_toplevel (attach);
1800 if (GTK_WIDGET_TOPLEVEL (toplevel))
1808 tearoff_window_destroyed (GtkWidget *widget,
1811 gtk_menu_set_tearoff_state (menu, FALSE);
1815 gtk_menu_set_tearoff_state (GtkMenu *menu,
1820 g_return_if_fail (GTK_IS_MENU (menu));
1822 if (menu->torn_off != torn_off)
1824 menu->torn_off = torn_off;
1825 menu->tearoff_active = torn_off;
1829 if (GTK_WIDGET_VISIBLE (menu))
1830 gtk_menu_popdown (menu);
1832 if (!menu->tearoff_window)
1834 GtkWidget *toplevel;
1836 menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW,
1837 "type", GTK_WINDOW_TOPLEVEL,
1838 "screen", gtk_widget_get_screen (menu->toplevel),
1839 "app-paintable", TRUE,
1842 gtk_window_set_type_hint (GTK_WINDOW (menu->tearoff_window),
1843 GDK_WINDOW_TYPE_HINT_MENU);
1844 gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->tearoff_window), 0);
1845 g_signal_connect (menu->tearoff_window, "destroy",
1846 G_CALLBACK (tearoff_window_destroyed), menu);
1847 g_signal_connect (menu->tearoff_window, "event",
1848 G_CALLBACK (gtk_menu_window_event), menu);
1850 gtk_menu_update_title (menu);
1852 gtk_widget_realize (menu->tearoff_window);
1854 toplevel = gtk_menu_get_toplevel (GTK_WIDGET (menu));
1855 if (toplevel != NULL)
1856 gtk_window_set_transient_for (GTK_WINDOW (menu->tearoff_window),
1857 GTK_WINDOW (toplevel));
1859 menu->tearoff_hbox = gtk_hbox_new (FALSE, FALSE);
1860 gtk_container_add (GTK_CONTAINER (menu->tearoff_window), menu->tearoff_hbox);
1862 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
1863 menu->tearoff_adjustment =
1864 GTK_ADJUSTMENT (gtk_adjustment_new (0,
1866 GTK_WIDGET (menu)->requisition.height,
1870 g_object_connect (menu->tearoff_adjustment,
1871 "signal::value_changed", gtk_menu_scrollbar_changed, menu,
1873 menu->tearoff_scrollbar = gtk_vscrollbar_new (menu->tearoff_adjustment);
1875 gtk_box_pack_end (GTK_BOX (menu->tearoff_hbox),
1876 menu->tearoff_scrollbar,
1879 if (menu->tearoff_adjustment->upper > height)
1880 gtk_widget_show (menu->tearoff_scrollbar);
1882 gtk_widget_show (menu->tearoff_hbox);
1885 gtk_menu_reparent (menu, menu->tearoff_hbox, FALSE);
1887 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, NULL);
1889 /* Update menu->requisition
1891 gtk_widget_size_request (GTK_WIDGET (menu), NULL);
1893 gtk_menu_set_tearoff_hints (menu, width);
1895 gtk_widget_realize (menu->tearoff_window);
1896 gtk_menu_position (menu);
1898 gtk_widget_show (GTK_WIDGET (menu));
1899 gtk_widget_show (menu->tearoff_window);
1901 gtk_menu_scroll_to (menu, 0);
1906 gtk_widget_hide (GTK_WIDGET (menu));
1907 gtk_widget_hide (menu->tearoff_window);
1908 if (GTK_IS_CONTAINER (menu->toplevel))
1909 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1910 gtk_widget_destroy (menu->tearoff_window);
1912 menu->tearoff_window = NULL;
1913 menu->tearoff_hbox = NULL;
1914 menu->tearoff_scrollbar = NULL;
1915 menu->tearoff_adjustment = NULL;
1918 g_object_notify (G_OBJECT (menu), "tearoff-state");
1923 * gtk_menu_get_tearoff_state:
1926 * Returns whether the menu is torn off. See
1927 * gtk_menu_set_tearoff_state ().
1929 * Return value: %TRUE if the menu is currently torn off.
1932 gtk_menu_get_tearoff_state (GtkMenu *menu)
1934 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
1936 return menu->torn_off;
1940 * gtk_menu_set_title:
1942 * @title: a string containing the title for the menu.
1944 * Sets the title string for the menu. The title is displayed when the menu
1945 * is shown as a tearoff menu.
1948 gtk_menu_set_title (GtkMenu *menu,
1951 GtkMenuPrivate *priv;
1953 g_return_if_fail (GTK_IS_MENU (menu));
1955 priv = gtk_menu_get_private (menu);
1957 if (strcmp (title ? title : "", priv->title ? priv->title : "") != 0)
1959 g_free (priv->title);
1960 priv->title = g_strdup (title);
1962 gtk_menu_update_title (menu);
1963 g_object_notify (G_OBJECT (menu), "tearoff-title");
1968 * gtk_menu_get_title:
1971 * Returns the title of the menu. See gtk_menu_set_title().
1973 * Return value: the title of the menu, or %NULL if the menu has no
1974 * title set on it. This string is owned by the widget and should
1975 * not be modified or freed.
1977 G_CONST_RETURN gchar *
1978 gtk_menu_get_title (GtkMenu *menu)
1980 GtkMenuPrivate *priv;
1982 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1984 priv = gtk_menu_get_private (menu);
1990 gtk_menu_reorder_child (GtkMenu *menu,
1994 GtkMenuShell *menu_shell;
1996 g_return_if_fail (GTK_IS_MENU (menu));
1997 g_return_if_fail (GTK_IS_MENU_ITEM (child));
1999 menu_shell = GTK_MENU_SHELL (menu);
2001 if (g_list_find (menu_shell->children, child))
2003 menu_shell->children = g_list_remove (menu_shell->children, child);
2004 menu_shell->children = g_list_insert (menu_shell->children, child, position);
2006 menu_queue_resize (menu);
2011 gtk_menu_style_set (GtkWidget *widget,
2012 GtkStyle *previous_style)
2014 if (GTK_WIDGET_REALIZED (widget))
2016 GtkMenu *menu = GTK_MENU (widget);
2018 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2019 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2020 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2025 gtk_menu_realize (GtkWidget *widget)
2027 GdkWindowAttr attributes;
2028 gint attributes_mask;
2033 guint vertical_padding;
2034 guint horizontal_padding;
2035 guint scroll_arrow_height;
2037 g_return_if_fail (GTK_IS_MENU (widget));
2039 menu = GTK_MENU (widget);
2041 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
2043 attributes.window_type = GDK_WINDOW_CHILD;
2044 attributes.x = widget->allocation.x;
2045 attributes.y = widget->allocation.y;
2046 attributes.width = widget->allocation.width;
2047 attributes.height = widget->allocation.height;
2048 attributes.wclass = GDK_INPUT_OUTPUT;
2049 attributes.visual = gtk_widget_get_visual (widget);
2050 attributes.colormap = gtk_widget_get_colormap (widget);
2052 attributes.event_mask = gtk_widget_get_events (widget);
2054 attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
2055 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
2057 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
2058 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
2059 gdk_window_set_user_data (widget->window, widget);
2061 border_width = GTK_CONTAINER (widget)->border_width;
2063 gtk_widget_style_get (GTK_WIDGET (menu),
2064 "vertical-padding", &vertical_padding,
2065 "horizontal-padding", &horizontal_padding,
2066 "scroll-arrow-vlength", &scroll_arrow_height,
2069 attributes.x = border_width + widget->style->xthickness + horizontal_padding;
2070 attributes.y = border_width + widget->style->ythickness + vertical_padding;
2071 attributes.width = MAX (1, widget->allocation.width - attributes.x * 2);
2072 attributes.height = MAX (1, widget->allocation.height - attributes.y * 2);
2074 if (menu->upper_arrow_visible)
2076 attributes.y += scroll_arrow_height;
2077 attributes.height -= scroll_arrow_height;
2080 if (menu->lower_arrow_visible)
2081 attributes.height -= scroll_arrow_height;
2083 menu->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
2084 gdk_window_set_user_data (menu->view_window, menu);
2088 attributes.width = MAX (1, widget->allocation.width - (border_width + widget->style->xthickness + horizontal_padding) * 2);
2089 attributes.height = MAX (1, widget->requisition.height - (border_width + widget->style->ythickness + vertical_padding) * 2);
2091 menu->bin_window = gdk_window_new (menu->view_window, &attributes, attributes_mask);
2092 gdk_window_set_user_data (menu->bin_window, menu);
2094 children = GTK_MENU_SHELL (menu)->children;
2097 child = children->data;
2098 children = children->next;
2100 gtk_widget_set_parent_window (child, menu->bin_window);
2103 widget->style = gtk_style_attach (widget->style, widget->window);
2104 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2105 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2106 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2108 if (GTK_MENU_SHELL (widget)->active_menu_item)
2109 gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
2110 GTK_MENU_SHELL (widget)->active_menu_item);
2112 gdk_window_show (menu->bin_window);
2113 gdk_window_show (menu->view_window);
2117 gtk_menu_focus (GtkWidget *widget,
2118 GtkDirectionType direction)
2121 * A menu or its menu items cannot have focus
2126 /* See notes in gtk_menu_popup() for information about the "grab transfer window"
2129 menu_grab_transfer_window_get (GtkMenu *menu)
2131 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2134 GdkWindowAttr attributes;
2135 gint attributes_mask;
2137 attributes.x = -100;
2138 attributes.y = -100;
2139 attributes.width = 10;
2140 attributes.height = 10;
2141 attributes.window_type = GDK_WINDOW_TEMP;
2142 attributes.wclass = GDK_INPUT_ONLY;
2143 attributes.override_redirect = TRUE;
2144 attributes.event_mask = 0;
2146 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
2148 window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
2149 &attributes, attributes_mask);
2150 gdk_window_set_user_data (window, menu);
2152 gdk_window_show (window);
2154 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), window);
2161 menu_grab_transfer_window_destroy (GtkMenu *menu)
2163 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2166 gdk_window_set_user_data (window, NULL);
2167 gdk_window_destroy (window);
2168 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), NULL);
2173 gtk_menu_unrealize (GtkWidget *widget)
2177 g_return_if_fail (GTK_IS_MENU (widget));
2179 menu = GTK_MENU (widget);
2181 menu_grab_transfer_window_destroy (menu);
2183 gdk_window_set_user_data (menu->view_window, NULL);
2184 gdk_window_destroy (menu->view_window);
2185 menu->view_window = NULL;
2187 gdk_window_set_user_data (menu->bin_window, NULL);
2188 gdk_window_destroy (menu->bin_window);
2189 menu->bin_window = NULL;
2191 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize) (widget);
2195 gtk_menu_size_request (GtkWidget *widget,
2196 GtkRequisition *requisition)
2200 GtkMenuShell *menu_shell;
2203 guint max_toggle_size;
2204 guint max_accel_width;
2205 guint vertical_padding;
2206 guint horizontal_padding;
2207 GtkRequisition child_requisition;
2208 GtkMenuPrivate *priv;
2210 g_return_if_fail (GTK_IS_MENU (widget));
2211 g_return_if_fail (requisition != NULL);
2213 menu = GTK_MENU (widget);
2214 menu_shell = GTK_MENU_SHELL (widget);
2215 priv = gtk_menu_get_private (menu);
2217 requisition->width = 0;
2218 requisition->height = 0;
2220 max_toggle_size = 0;
2221 max_accel_width = 0;
2223 g_free (priv->heights);
2224 priv->heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2225 priv->heights_length = gtk_menu_get_n_rows (menu);
2227 children = menu_shell->children;
2234 child = children->data;
2235 children = children->next;
2237 if (! GTK_WIDGET_VISIBLE (child))
2240 get_effective_child_attach (child, &l, &r, &t, &b);
2242 /* It's important to size_request the child
2243 * before doing the toggle size request, in
2244 * case the toggle size request depends on the size
2245 * request of a child of the child (e.g. for ImageMenuItem)
2248 GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE;
2249 gtk_widget_size_request (child, &child_requisition);
2251 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
2252 max_toggle_size = MAX (max_toggle_size, toggle_size);
2253 max_accel_width = MAX (max_accel_width,
2254 GTK_MENU_ITEM (child)->accelerator_width);
2256 part = child_requisition.width / (r - l);
2257 requisition->width = MAX (requisition->width, part);
2259 part = MAX (child_requisition.height, toggle_size) / (b - t);
2260 priv->heights[t] = MAX (priv->heights[t], part);
2263 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2264 requisition->height += priv->heights[i];
2266 requisition->width += max_toggle_size + max_accel_width;
2267 requisition->width *= gtk_menu_get_n_columns (menu);
2269 gtk_widget_style_get (GTK_WIDGET (menu),
2270 "vertical-padding", &vertical_padding,
2271 "horizontal-padding", &horizontal_padding,
2274 requisition->width += (GTK_CONTAINER (menu)->border_width + horizontal_padding +
2275 widget->style->xthickness) * 2;
2276 requisition->height += (GTK_CONTAINER (menu)->border_width + vertical_padding +
2277 widget->style->ythickness) * 2;
2279 menu->toggle_size = max_toggle_size;
2281 /* Don't resize the tearoff if it is not active, because it won't redraw (it is only a background pixmap).
2283 if (menu->tearoff_active)
2284 gtk_menu_set_tearoff_hints (menu, requisition->width);
2288 gtk_menu_size_allocate (GtkWidget *widget,
2289 GtkAllocation *allocation)
2292 GtkMenuShell *menu_shell;
2294 GtkAllocation child_allocation;
2295 GtkRequisition child_requisition;
2296 GtkMenuPrivate *priv;
2300 guint vertical_padding;
2301 guint horizontal_padding;
2302 gint scroll_arrow_height;
2304 g_return_if_fail (GTK_IS_MENU (widget));
2305 g_return_if_fail (allocation != NULL);
2307 menu = GTK_MENU (widget);
2308 menu_shell = GTK_MENU_SHELL (widget);
2309 priv = gtk_menu_get_private (menu);
2311 widget->allocation = *allocation;
2312 gtk_widget_get_child_requisition (GTK_WIDGET (menu), &child_requisition);
2314 gtk_widget_style_get (GTK_WIDGET (menu),
2315 "vertical-padding", &vertical_padding,
2316 "horizontal-padding", &horizontal_padding,
2317 "scroll-arrow-vlength", &scroll_arrow_height,
2320 x = GTK_CONTAINER (menu)->border_width + widget->style->xthickness + horizontal_padding;
2321 y = GTK_CONTAINER (menu)->border_width + widget->style->ythickness + vertical_padding;
2323 width = MAX (1, allocation->width - x * 2);
2324 height = MAX (1, allocation->height - y * 2);
2326 child_requisition.width -= x * 2;
2327 child_requisition.height -= y * 2;
2329 if (menu_shell->active)
2330 gtk_menu_scroll_to (menu, menu->scroll_offset);
2332 if (menu->upper_arrow_visible && !menu->tearoff_active)
2334 y += scroll_arrow_height;
2335 height -= scroll_arrow_height;
2338 if (menu->lower_arrow_visible && !menu->tearoff_active)
2339 height -= scroll_arrow_height;
2341 if (GTK_WIDGET_REALIZED (widget))
2343 gdk_window_move_resize (widget->window,
2344 allocation->x, allocation->y,
2345 allocation->width, allocation->height);
2347 gdk_window_move_resize (menu->view_window,
2354 if (menu_shell->children)
2356 gint base_width = width / gtk_menu_get_n_columns (menu);
2358 children = menu_shell->children;
2361 child = children->data;
2362 children = children->next;
2364 if (GTK_WIDGET_VISIBLE (child))
2369 get_effective_child_attach (child, &l, &r, &t, &b);
2371 if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
2374 tmp = gtk_menu_get_n_columns (menu) - l;
2375 l = gtk_menu_get_n_columns (menu) - r;
2379 child_allocation.width = (r - l) * base_width;
2380 child_allocation.height = 0;
2381 child_allocation.x = l * base_width;
2382 child_allocation.y = 0;
2384 for (i = 0; i < b; i++)
2387 child_allocation.y += priv->heights[i];
2389 child_allocation.height += priv->heights[i];
2392 gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
2395 gtk_widget_size_allocate (child, &child_allocation);
2396 gtk_widget_queue_draw (child);
2400 /* Resize the item window */
2401 if (GTK_WIDGET_REALIZED (widget))
2407 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2408 height += priv->heights[i];
2410 width = gtk_menu_get_n_columns (menu) * base_width;
2411 gdk_window_resize (menu->bin_window, width, height);
2414 if (menu->tearoff_active)
2416 if (allocation->height >= widget->requisition.height)
2418 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2420 gtk_widget_hide (menu->tearoff_scrollbar);
2421 gtk_menu_set_tearoff_hints (menu, allocation->width);
2423 gtk_menu_scroll_to (menu, 0);
2428 menu->tearoff_adjustment->upper = widget->requisition.height;
2429 menu->tearoff_adjustment->page_size = allocation->height;
2431 if (menu->tearoff_adjustment->value + menu->tearoff_adjustment->page_size >
2432 menu->tearoff_adjustment->upper)
2435 value = menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size;
2438 gtk_menu_scroll_to (menu, value);
2441 gtk_adjustment_changed (menu->tearoff_adjustment);
2443 if (!GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2445 gtk_widget_show (menu->tearoff_scrollbar);
2446 gtk_menu_set_tearoff_hints (menu, allocation->width);
2454 gtk_menu_paint (GtkWidget *widget,
2455 GdkEventExpose *event)
2458 GtkMenuPrivate *priv;
2460 gint border_x, border_y;
2461 guint vertical_padding;
2462 guint horizontal_padding;
2463 gint scroll_arrow_height;
2465 g_return_if_fail (GTK_IS_MENU (widget));
2467 menu = GTK_MENU (widget);
2468 priv = gtk_menu_get_private (menu);
2470 gtk_widget_style_get (GTK_WIDGET (menu),
2471 "vertical-padding", &vertical_padding,
2472 "horizontal-padding", &horizontal_padding,
2473 "scroll-arrow-vlength", &scroll_arrow_height,
2476 border_x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness + horizontal_padding;
2477 border_y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness + vertical_padding;
2478 gdk_drawable_get_size (widget->window, &width, &height);
2480 if (event->window == widget->window)
2482 gint arrow_space = scroll_arrow_height - 2 * widget->style->ythickness;
2483 gint arrow_size = 0.7 * arrow_space;
2485 gtk_paint_box (widget->style,
2489 NULL, widget, "menu",
2492 if (menu->upper_arrow_visible && !menu->tearoff_active)
2494 gtk_paint_box (widget->style,
2496 priv->upper_arrow_state,
2498 NULL, widget, "menu",
2501 width - 2 * border_x,
2502 scroll_arrow_height);
2504 gtk_paint_arrow (widget->style,
2506 priv->upper_arrow_state,
2508 NULL, widget, "menu_scroll_arrow_up",
2511 (width - arrow_size ) / 2,
2512 border_y + widget->style->ythickness + (arrow_space - arrow_size)/2,
2513 arrow_size, arrow_size);
2516 if (menu->lower_arrow_visible && !menu->tearoff_active)
2518 gtk_paint_box (widget->style,
2520 priv->lower_arrow_state,
2522 NULL, widget, "menu",
2524 height - border_y - scroll_arrow_height,
2526 scroll_arrow_height);
2528 gtk_paint_arrow (widget->style,
2530 priv->lower_arrow_state,
2532 NULL, widget, "menu_scroll_arrow_down",
2535 (width - arrow_size) / 2,
2536 height - border_y - scroll_arrow_height +
2537 widget->style->ythickness + (arrow_space - arrow_size)/2,
2538 arrow_size, arrow_size);
2541 else if (event->window == menu->bin_window)
2543 gtk_paint_box (widget->style,
2547 NULL, widget, "menu",
2548 - border_x, menu->scroll_offset - border_y,
2554 gtk_menu_expose (GtkWidget *widget,
2555 GdkEventExpose *event)
2557 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2558 g_return_val_if_fail (event != NULL, FALSE);
2560 if (GTK_WIDGET_DRAWABLE (widget))
2562 gtk_menu_paint (widget, event);
2564 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->expose_event) (widget, event);
2571 gtk_menu_show (GtkWidget *widget)
2573 GtkMenu *menu = GTK_MENU (widget);
2575 _gtk_menu_refresh_accel_paths (menu, FALSE);
2577 GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
2581 gtk_menu_button_scroll (GtkWidget *widget,
2582 GdkEventButton *event)
2584 if (GTK_IS_MENU (widget))
2586 GtkMenu *menu = GTK_MENU (widget);
2588 if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
2590 GtkSettings *settings = gtk_widget_get_settings (widget);
2591 gboolean touchscreen_mode;
2593 g_object_get (G_OBJECT (settings),
2594 "gtk-touchscreen-mode", &touchscreen_mode,
2597 if (touchscreen_mode)
2598 gtk_menu_handle_scrolling (menu,
2599 event->x_root, event->y_root,
2600 event->type == GDK_BUTTON_PRESS,
2611 gtk_menu_button_press (GtkWidget *widget,
2612 GdkEventButton *event)
2614 if (event->type != GDK_BUTTON_PRESS)
2617 /* Don't pop down the menu for presses over scroll arrows
2619 if (gtk_menu_button_scroll (widget, event))
2622 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_press_event (widget, event);
2626 gtk_menu_button_release (GtkWidget *widget,
2627 GdkEventButton *event)
2629 if (GTK_IS_MENU (widget))
2631 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2633 if (priv->ignore_button_release)
2635 priv->ignore_button_release = FALSE;
2640 if (event->type != GDK_BUTTON_RELEASE)
2643 /* Don't pop down the menu for releases over scroll arrows
2645 if (gtk_menu_button_scroll (widget, event))
2648 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_release_event (widget, event);
2651 static const gchar *
2652 get_accel_path (GtkWidget *menu_item,
2657 GClosure *accel_closure;
2658 GtkAccelGroup *accel_group;
2660 path = _gtk_widget_get_accel_path (menu_item, locked);
2663 path = GTK_MENU_ITEM (menu_item)->accel_path;
2669 label = GTK_BIN (menu_item)->child;
2671 if (GTK_IS_ACCEL_LABEL (label))
2673 g_object_get (label,
2674 "accel-closure", &accel_closure,
2678 accel_group = gtk_accel_group_from_accel_closure (accel_closure);
2680 *locked = accel_group->lock_count > 0;
2690 gtk_menu_key_press (GtkWidget *widget,
2693 GtkMenuShell *menu_shell;
2695 gboolean delete = FALSE;
2696 gboolean can_change_accels;
2697 gchar *accel = NULL;
2698 guint accel_key, accel_mods;
2699 GdkModifierType consumed_modifiers;
2700 GdkDisplay *display;
2702 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2703 g_return_val_if_fail (event != NULL, FALSE);
2705 menu_shell = GTK_MENU_SHELL (widget);
2706 menu = GTK_MENU (widget);
2708 gtk_menu_stop_navigating_submenu (menu);
2710 if (GTK_WIDGET_CLASS (gtk_menu_parent_class)->key_press_event (widget, event))
2713 display = gtk_widget_get_display (widget);
2715 g_object_get (gtk_widget_get_settings (widget),
2716 "gtk-menu-bar-accel", &accel,
2717 "gtk-can-change-accels", &can_change_accels,
2723 GdkModifierType mods = 0;
2724 gboolean handled = FALSE;
2726 gtk_accelerator_parse (accel, &keyval, &mods);
2729 g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
2731 /* FIXME this is wrong, needs to be in the global accel resolution
2732 * thing, to properly consider i18n etc., but that probably requires
2733 * AccelGroup changes etc.
2735 if (event->keyval == keyval &&
2736 (mods & event->state) == mods)
2737 gtk_menu_shell_cancel (menu_shell);
2745 switch (event->keyval)
2756 /* Figure out what modifiers went into determining the key symbol */
2757 gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
2758 event->hardware_keycode, event->state, event->group,
2759 NULL, NULL, NULL, &consumed_modifiers);
2761 accel_key = gdk_keyval_to_lower (event->keyval);
2762 accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
2764 /* If lowercasing affects the keysym, then we need to include SHIFT in the modifiers,
2765 * We re-upper case when we match against the keyval, but display and save in caseless form.
2767 if (accel_key != event->keyval)
2768 accel_mods |= GDK_SHIFT_MASK;
2770 /* Modify the accelerators */
2771 if (can_change_accels &&
2772 menu_shell->active_menu_item &&
2773 GTK_BIN (menu_shell->active_menu_item)->child && /* no separators */
2774 GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && /* no submenus */
2775 (delete || gtk_accelerator_valid (accel_key, accel_mods)))
2777 GtkWidget *menu_item = menu_shell->active_menu_item;
2778 gboolean locked, replace_accels = TRUE;
2781 path = get_accel_path (menu_item, &locked);
2782 if (!path || locked)
2784 /* can't change accelerators on menu_items without paths
2785 * (basically, those items are accelerator-locked).
2787 /* g_print("item has no path or is locked, menu prefix: %s\n", menu->accel_path); */
2788 gdk_display_beep (display);
2794 /* For the keys that act to delete the current setting, we delete
2795 * the current setting if there is one, otherwise, we set the
2796 * key as the accelerator.
2802 if (gtk_accel_map_lookup_entry (path, &key) &&
2803 (key.accel_key || key.accel_mods))
2809 changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
2813 /* we failed, probably because this key is in use and
2816 /* g_print("failed to change\n"); */
2817 gdk_display_beep (display);
2826 check_threshold (GtkWidget *widget,
2827 int start_x, int start_y,
2833 ABS (start_x - x) > THRESHOLD ||
2834 ABS (start_y - y) > THRESHOLD;
2838 definitely_within_item (GtkWidget *widget,
2842 GdkWindow *window = GTK_MENU_ITEM (widget)->event_window;
2845 gdk_drawable_get_size (window, &w, &h);
2848 check_threshold (widget, 0, 0, x, y) &&
2849 check_threshold (widget, w - 1, 0, x, y) &&
2850 check_threshold (widget, w - 1, h - 1, x, y) &&
2851 check_threshold (widget, 0, h - 1, x, y);
2855 gtk_menu_motion_notify (GtkWidget *widget,
2856 GdkEventMotion *event)
2858 GtkWidget *menu_item;
2860 GtkMenuShell *menu_shell;
2862 gboolean need_enter;
2864 if (GTK_IS_MENU (widget))
2866 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2868 if (priv->ignore_button_release)
2869 priv->ignore_button_release = FALSE;
2871 gtk_menu_handle_scrolling (GTK_MENU (widget), event->x_root, event->y_root,
2875 /* We received the event for one of two reasons:
2877 * a) We are the active menu, and did gtk_grab_add()
2878 * b) The widget is a child of ours, and the event was propagated
2880 * Since for computation of navigation regions, we want the menu which
2881 * is the parent of the menu item, for a), we need to find that menu,
2882 * which may be different from 'widget'.
2884 menu_item = gtk_get_event_widget ((GdkEvent*) event);
2885 if (!GTK_IS_MENU_ITEM (menu_item) ||
2886 !GTK_IS_MENU (menu_item->parent))
2889 menu_shell = GTK_MENU_SHELL (menu_item->parent);
2890 menu = GTK_MENU (menu_shell);
2892 if (definitely_within_item (menu_item, event->x, event->y))
2893 menu_shell->activate_time = 0;
2895 need_enter = (menu->navigation_region != NULL || menu_shell->ignore_enter);
2897 /* Check to see if we are within an active submenu's navigation region
2899 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
2902 /* Make sure we pop down if we enter a non-selectable menu item, so we
2903 * don't show a submenu when the cursor is outside the stay-up triangle.
2905 if (!_gtk_menu_item_is_selectable (menu_item))
2907 gtk_menu_shell_deselect (menu_shell);
2913 /* The menu is now sensitive to enter events on its items, but
2914 * was previously sensitive. So we fake an enter event.
2918 menu_shell->ignore_enter = FALSE;
2920 gdk_drawable_get_size (event->window, &width, &height);
2921 if (event->x >= 0 && event->x < width &&
2922 event->y >= 0 && event->y < height)
2924 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
2927 send_event->crossing.window = g_object_ref (event->window);
2928 send_event->crossing.time = event->time;
2929 send_event->crossing.send_event = TRUE;
2930 send_event->crossing.x_root = event->x_root;
2931 send_event->crossing.y_root = event->y_root;
2932 send_event->crossing.x = event->x;
2933 send_event->crossing.y = event->y;
2935 /* We send the event to 'widget', the currently active menu,
2936 * instead of 'menu', the menu that the pointer is in. This
2937 * will ensure that the event will be ignored unless the
2938 * menuitem is a child of the active menu or some parent
2939 * menu of the active menu.
2941 result = gtk_widget_event (widget, send_event);
2942 gdk_event_free (send_event);
2952 get_double_arrows (GtkMenu *menu)
2954 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
2955 gboolean double_arrows;
2957 gtk_widget_style_get (GTK_WIDGET (menu),
2958 "double-arrows", &double_arrows,
2961 return double_arrows || (priv->initially_pushed_in &&
2962 menu->scroll_offset != 0);
2966 gtk_menu_scroll_by (GtkMenu *menu,
2971 gint view_width, view_height;
2972 gboolean double_arrows;
2973 gint scroll_arrow_height;
2975 widget = GTK_WIDGET (menu);
2976 offset = menu->scroll_offset + step;
2978 gtk_widget_style_get (GTK_WIDGET (menu),
2979 "scroll-arrow-vlength", &scroll_arrow_height,
2982 double_arrows = get_double_arrows (menu);
2984 /* If we scroll upward and the non-visible top part
2985 * is smaller than the scroll arrow it would be
2986 * pretty stupid to show the arrow and taking more
2987 * screen space than just scrolling to the top.
2990 if ((step < 0) && (offset < scroll_arrow_height))
2993 /* Don't scroll over the top if we weren't before: */
2994 if ((menu->scroll_offset >= 0) && (offset < 0))
2997 gdk_drawable_get_size (widget->window, &view_width, &view_height);
2999 if (menu->scroll_offset == 0 &&
3000 view_height >= widget->requisition.height)
3003 /* Don't scroll past the bottom if we weren't before: */
3004 if (menu->scroll_offset > 0)
3005 view_height -= scroll_arrow_height;
3007 /* When both arrows are always shown, reduce
3008 * view height even more.
3011 view_height -= scroll_arrow_height;
3013 if ((menu->scroll_offset + view_height <= widget->requisition.height) &&
3014 (offset + view_height > widget->requisition.height))
3015 offset = widget->requisition.height - view_height;
3017 if (offset != menu->scroll_offset)
3018 gtk_menu_scroll_to (menu, offset);
3022 gtk_menu_do_timeout_scroll (GtkMenu *menu,
3023 gboolean touchscreen_mode)
3025 gboolean upper_visible;
3026 gboolean lower_visible;
3028 upper_visible = menu->upper_arrow_visible;
3029 lower_visible = menu->lower_arrow_visible;
3031 gtk_menu_scroll_by (menu, menu->scroll_step);
3033 if (touchscreen_mode &&
3034 (upper_visible != menu->upper_arrow_visible ||
3035 lower_visible != menu->lower_arrow_visible))
3037 /* We are about to hide a scroll arrow while the mouse is pressed,
3038 * this would cause the uncovered menu item to be activated on button
3039 * release. Therefore we need to ignore button release here
3041 GTK_MENU_SHELL (menu)->ignore_enter = TRUE;
3042 gtk_menu_get_private (menu)->ignore_button_release = TRUE;
3047 gtk_menu_scroll_timeout (gpointer data)
3050 GtkSettings *settings;
3051 gboolean touchscreen_mode;
3053 GDK_THREADS_ENTER ();
3055 menu = GTK_MENU (data);
3057 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3058 g_object_get (settings,
3059 "gtk-touchscreen-mode", &touchscreen_mode,
3062 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3064 GDK_THREADS_LEAVE ();
3070 gtk_menu_scroll_timeout_initial (gpointer data)
3073 GtkSettings *settings;
3075 gboolean touchscreen_mode;
3077 GDK_THREADS_ENTER ();
3079 menu = GTK_MENU (data);
3081 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3082 g_object_get (settings,
3083 "gtk-timeout-repeat", &timeout,
3084 "gtk-touchscreen-mode", &touchscreen_mode,
3087 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3089 gtk_menu_remove_scroll_timeout (menu);
3091 menu->timeout_id = g_timeout_add (timeout, gtk_menu_scroll_timeout, menu);
3093 GDK_THREADS_LEAVE ();
3099 gtk_menu_start_scrolling (GtkMenu *menu)
3101 GtkSettings *settings;
3103 gboolean touchscreen_mode;
3105 settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3106 g_object_get (settings,
3107 "gtk-timeout-repeat", &timeout,
3108 "gtk-touchscreen-mode", &touchscreen_mode,
3111 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3113 menu->timeout_id = g_timeout_add (timeout, gtk_menu_scroll_timeout_initial,
3118 gtk_menu_scroll (GtkWidget *widget,
3119 GdkEventScroll *event)
3121 GtkMenu *menu = GTK_MENU (widget);
3123 switch (event->direction)
3125 case GDK_SCROLL_RIGHT:
3126 case GDK_SCROLL_DOWN:
3127 gtk_menu_scroll_by (menu, MENU_SCROLL_STEP2);
3129 case GDK_SCROLL_LEFT:
3131 gtk_menu_scroll_by (menu, - MENU_SCROLL_STEP2);
3139 gtk_menu_handle_scrolling (GtkMenu *menu,
3145 GtkMenuShell *menu_shell;
3146 GtkMenuPrivate *priv;
3151 gboolean scroll_fast = FALSE;
3152 guint vertical_padding;
3155 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3156 gboolean touchscreen_mode;
3157 gint scroll_arrow_height;
3159 priv = gtk_menu_get_private (menu);
3161 menu_shell = GTK_MENU_SHELL (menu);
3163 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
3165 g_object_get (G_OBJECT (settings),
3166 "gtk-touchscreen-mode", &touchscreen_mode,
3169 gtk_widget_style_get (GTK_WIDGET (menu),
3170 "vertical-padding", &vertical_padding,
3171 "scroll-arrow-vlength", &scroll_arrow_height,
3174 border = GTK_CONTAINER (menu)->border_width +
3175 GTK_WIDGET (menu)->style->ythickness + vertical_padding;
3177 gdk_window_get_position (menu->toplevel->window, &top_x, &top_y);
3181 gdk_window_get_position (GTK_WIDGET (menu)->window, &win_x, &win_y);
3183 /* upper arrow handling */
3188 rect.height = scroll_arrow_height + border;
3191 if (menu->upper_arrow_visible && !menu->tearoff_active &&
3192 (x >= rect.x) && (x < rect.x + rect.width) &&
3193 (y >= rect.y) && (y < rect.y + rect.height))
3198 if (touchscreen_mode)
3199 menu->upper_arrow_prelight = in_arrow;
3201 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3203 if (menu->upper_arrow_visible && !menu->tearoff_active)
3205 if (touchscreen_mode)
3207 if (enter && menu->upper_arrow_prelight &&
3208 menu->timeout_id == 0)
3210 /* Deselect the active item so that
3211 * any submenus are popped down
3213 gtk_menu_shell_deselect (menu_shell);
3215 gtk_menu_remove_scroll_timeout (menu);
3216 menu->scroll_step = -MENU_SCROLL_STEP2; /* always fast */
3220 /* Only do stuff on click. */
3221 gtk_menu_start_scrolling (menu);
3222 priv->upper_arrow_state = GTK_STATE_ACTIVE;
3225 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3230 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3233 gtk_menu_stop_scrolling (menu);
3236 else /* !touchscreen_mode */
3238 scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
3240 if (enter && in_arrow &&
3241 (!menu->upper_arrow_prelight ||
3242 menu->scroll_fast != scroll_fast))
3244 menu->upper_arrow_prelight = TRUE;
3245 menu->scroll_fast = scroll_fast;
3246 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3249 /* Deselect the active item so that
3250 * any submenus are popped down
3252 gtk_menu_shell_deselect (menu_shell);
3254 gtk_menu_remove_scroll_timeout (menu);
3255 menu->scroll_step = scroll_fast ?
3256 -MENU_SCROLL_STEP2 : -MENU_SCROLL_STEP1;
3259 g_timeout_add (scroll_fast ?
3260 MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
3261 gtk_menu_scroll_timeout, menu);
3263 else if (!enter && !in_arrow && menu->upper_arrow_prelight)
3265 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3268 gtk_menu_stop_scrolling (menu);
3273 priv->upper_arrow_state = menu->upper_arrow_prelight ?
3274 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
3277 /* lower arrow handling */
3280 rect.y = win_y + height - border - scroll_arrow_height;
3282 rect.height = scroll_arrow_height + border;
3285 if (menu->lower_arrow_visible && !menu->tearoff_active &&
3286 (x >= rect.x) && (x < rect.x + rect.width) &&
3287 (y >= rect.y) && (y < rect.y + rect.height))
3292 if (touchscreen_mode)
3293 menu->lower_arrow_prelight = in_arrow;
3295 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3297 if (menu->lower_arrow_visible && !menu->tearoff_active)
3299 if (touchscreen_mode)
3301 if (enter && menu->lower_arrow_prelight &&
3302 menu->timeout_id == 0)
3304 /* Deselect the active item so that
3305 * any submenus are popped down
3307 gtk_menu_shell_deselect (menu_shell);
3309 gtk_menu_remove_scroll_timeout (menu);
3310 menu->scroll_step = MENU_SCROLL_STEP2; /* always fast */
3314 /* Only do stuff on click. */
3315 gtk_menu_start_scrolling (menu);
3316 priv->lower_arrow_state = GTK_STATE_ACTIVE;
3319 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3324 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3327 gtk_menu_stop_scrolling (menu);
3330 else /* !touchscreen_mode */
3332 scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
3334 if (enter && in_arrow &&
3335 (!menu->lower_arrow_prelight ||
3336 menu->scroll_fast != scroll_fast))
3338 menu->lower_arrow_prelight = TRUE;
3339 menu->scroll_fast = scroll_fast;
3340 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3343 /* Deselect the active item so that
3344 * any submenus are popped down
3346 gtk_menu_shell_deselect (menu_shell);
3348 gtk_menu_remove_scroll_timeout (menu);
3349 menu->scroll_step = scroll_fast ?
3350 MENU_SCROLL_STEP2 : MENU_SCROLL_STEP1;
3353 g_timeout_add (scroll_fast ?
3354 MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
3355 gtk_menu_scroll_timeout, menu);
3357 else if (!enter && !in_arrow && menu->lower_arrow_prelight)
3359 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3362 gtk_menu_stop_scrolling (menu);
3367 priv->lower_arrow_state = menu->lower_arrow_prelight ?
3368 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
3373 gtk_menu_enter_notify (GtkWidget *widget,
3374 GdkEventCrossing *event)
3376 GtkSettings *settings = gtk_widget_get_settings (widget);
3377 GtkWidget *menu_item;
3378 gboolean touchscreen_mode;
3380 g_object_get (G_OBJECT (settings),
3381 "gtk-touchscreen-mode", &touchscreen_mode,
3384 menu_item = gtk_get_event_widget ((GdkEvent*) event);
3385 if (GTK_IS_MENU (widget))
3387 GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
3389 if (!menu_shell->ignore_enter)
3390 gtk_menu_handle_scrolling (GTK_MENU (widget),
3391 event->x_root, event->y_root, TRUE, TRUE);
3394 if (!touchscreen_mode && GTK_IS_MENU_ITEM (menu_item))
3396 GtkWidget *menu = menu_item->parent;
3398 if (GTK_IS_MENU (menu))
3400 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (menu));
3401 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
3403 if (priv->seen_item_enter)
3405 /* This is the second enter we see for an item
3406 * on this menu. This means a release should always
3409 menu_shell->activate_time = 0;
3411 else if ((event->detail != GDK_NOTIFY_NONLINEAR &&
3412 event->detail != GDK_NOTIFY_NONLINEAR_VIRTUAL))
3414 if (definitely_within_item (menu_item, event->x, event->y))
3416 /* This is an actual user-enter (ie. not a pop-under)
3417 * In this case, the user must either have entered
3418 * sufficiently far enough into the item, or he must move
3419 * far enough away from the enter point. (see
3420 * gtk_menu_motion_notify())
3422 menu_shell->activate_time = 0;
3426 priv->seen_item_enter = TRUE;
3430 /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
3431 * will not correspond to the event widget's parent. Check to see
3432 * if we are in the parent's navigation region.
3434 if (GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (menu_item->parent) &&
3435 gtk_menu_navigating_submenu (GTK_MENU (menu_item->parent),
3436 event->x_root, event->y_root))
3439 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (widget, event);
3443 gtk_menu_leave_notify (GtkWidget *widget,
3444 GdkEventCrossing *event)
3446 GtkMenuShell *menu_shell;
3448 GtkMenuItem *menu_item;
3449 GtkWidget *event_widget;
3451 menu = GTK_MENU (widget);
3452 menu_shell = GTK_MENU_SHELL (widget);
3454 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
3457 gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
3459 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3461 if (!GTK_IS_MENU_ITEM (event_widget))
3464 menu_item = GTK_MENU_ITEM (event_widget);
3466 /* Here we check to see if we're leaving an active menu item with a submenu,
3467 * in which case we enter submenu navigation mode.
3469 if (menu_shell->active_menu_item != NULL
3470 && menu_item->submenu != NULL
3471 && menu_item->submenu_placement == GTK_LEFT_RIGHT)
3473 if (GTK_MENU_SHELL (menu_item->submenu)->active)
3475 gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
3478 else if (menu_item == GTK_MENU_ITEM (menu_shell->active_menu_item))
3480 /* We are leaving an active menu item with nonactive submenu.
3481 * Deselect it so we don't surprise the user with by popping
3482 * up a submenu _after_ he left the item.
3484 gtk_menu_shell_deselect (menu_shell);
3489 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->leave_notify_event (widget, event);
3493 gtk_menu_stop_navigating_submenu (GtkMenu *menu)
3495 if (menu->navigation_region)
3497 gdk_region_destroy (menu->navigation_region);
3498 menu->navigation_region = NULL;
3500 if (menu->navigation_timeout)
3502 g_source_remove (menu->navigation_timeout);
3503 menu->navigation_timeout = 0;
3507 /* When the timeout is elapsed, the navigation region is destroyed
3508 * and the menuitem under the pointer (if any) is selected.
3511 gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
3513 GtkMenu *menu = user_data;
3514 GdkWindow *child_window;
3516 GDK_THREADS_ENTER ();
3518 gtk_menu_stop_navigating_submenu (menu);
3520 if (GTK_WIDGET_REALIZED (menu))
3522 child_window = gdk_window_get_pointer (menu->bin_window, NULL, NULL, NULL);
3526 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
3528 send_event->crossing.window = g_object_ref (child_window);
3529 send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
3530 send_event->crossing.send_event = TRUE;
3532 GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
3534 gdk_event_free (send_event);
3538 GDK_THREADS_LEAVE ();
3544 gtk_menu_navigating_submenu (GtkMenu *menu,
3548 if (menu->navigation_region)
3550 if (gdk_region_point_in (menu->navigation_region, event_x, event_y))
3554 gtk_menu_stop_navigating_submenu (menu);
3561 #undef DRAW_STAY_UP_TRIANGLE
3563 #ifdef DRAW_STAY_UP_TRIANGLE
3566 draw_stay_up_triangle (GdkWindow *window,
3569 /* Draw ugly color all over the stay-up triangle */
3570 GdkColor ugly_color = { 0, 50000, 10000, 10000 };
3571 GdkGCValues gc_values;
3573 GdkRectangle clipbox;
3575 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
3576 ugly_gc = gdk_gc_new_with_values (window, &gc_values, 0 | GDK_GC_SUBWINDOW);
3577 gdk_gc_set_rgb_fg_color (ugly_gc, &ugly_color);
3578 gdk_gc_set_clip_region (ugly_gc, region);
3580 gdk_region_get_clipbox (region, &clipbox);
3582 gdk_draw_rectangle (window,
3585 clipbox.x, clipbox.y,
3586 clipbox.width, clipbox.height);
3588 g_object_unref (ugly_gc);
3593 flip_region (GdkRegion *region,
3598 GdkRectangle *rectangles;
3599 GdkRectangle clipbox;
3600 GdkRegion *new_region;
3603 new_region = gdk_region_new ();
3605 gdk_region_get_rectangles (region, &rectangles, &n_rectangles);
3606 gdk_region_get_clipbox (region, &clipbox);
3608 for (i = 0; i < n_rectangles; ++i)
3610 GdkRectangle rect = rectangles[i];
3613 rect.y -= 2 * (rect.y - clipbox.y) + rect.height;
3616 rect.x -= 2 * (rect.x - clipbox.x) + rect.width;
3618 gdk_region_union_with_rect (new_region, &rect);
3621 g_free (rectangles);
3627 gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
3628 GtkMenuItem *menu_item,
3629 GdkEventCrossing *event)
3631 gint submenu_left = 0;
3632 gint submenu_right = 0;
3633 gint submenu_top = 0;
3634 gint submenu_bottom = 0;
3638 GtkWidget *event_widget;
3640 g_return_if_fail (menu_item->submenu != NULL);
3641 g_return_if_fail (event != NULL);
3643 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3645 gdk_window_get_origin (menu_item->submenu->window, &submenu_left, &submenu_top);
3646 gdk_drawable_get_size (menu_item->submenu->window, &width, &height);
3648 submenu_right = submenu_left + width;
3649 submenu_bottom = submenu_top + height;
3651 gdk_drawable_get_size (event_widget->window, &width, &height);
3653 if (event->x >= 0 && event->x < width)
3656 gboolean flip_y = FALSE;
3657 gboolean flip_x = FALSE;
3659 gtk_menu_stop_navigating_submenu (menu);
3661 if (menu_item->submenu_direction == GTK_DIRECTION_RIGHT)
3664 point[0].x = event->x_root;
3665 point[1].x = submenu_left;
3670 point[0].x = event->x_root + 1;
3671 point[1].x = 2 * (event->x_root + 1) - submenu_right;
3679 point[0].y = event->y_root + 1;
3680 point[1].y = 2 * (event->y_root + 1) - submenu_top + NAVIGATION_REGION_OVERSHOOT;
3682 if (point[0].y >= point[1].y - NAVIGATION_REGION_OVERSHOOT)
3690 point[0].y = event->y_root;
3691 point[1].y = submenu_bottom + NAVIGATION_REGION_OVERSHOOT;
3693 if (point[0].y >= submenu_bottom)
3697 point[2].x = point[1].x;
3698 point[2].y = point[0].y;
3700 menu->navigation_region = gdk_region_polygon (point, 3, GDK_WINDING_RULE);
3702 if (flip_x || flip_y)
3704 GdkRegion *new_region = flip_region (menu->navigation_region, flip_x, flip_y);
3705 gdk_region_destroy (menu->navigation_region);
3706 menu->navigation_region = new_region;
3709 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3710 "gtk-menu-popdown-delay", &popdown_delay,
3713 menu->navigation_timeout = g_timeout_add (popdown_delay,
3714 gtk_menu_stop_navigating_submenu_cb, menu);
3716 #ifdef DRAW_STAY_UP_TRIANGLE
3717 draw_stay_up_triangle (gdk_get_default_root_window(),
3718 menu->navigation_region);
3724 gtk_menu_deactivate (GtkMenuShell *menu_shell)
3728 g_return_if_fail (GTK_IS_MENU (menu_shell));
3730 parent = menu_shell->parent_menu_shell;
3732 menu_shell->activate_time = 0;
3733 gtk_menu_popdown (GTK_MENU (menu_shell));
3736 gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
3740 gtk_menu_position (GtkMenu *menu)
3743 GtkRequisition requisition;
3744 GtkMenuPrivate *private;
3749 GdkScreen *pointer_screen;
3750 GdkRectangle monitor;
3751 gint scroll_arrow_height;
3753 g_return_if_fail (GTK_IS_MENU (menu));
3755 widget = GTK_WIDGET (menu);
3757 screen = gtk_widget_get_screen (widget);
3758 gdk_display_get_pointer (gdk_screen_get_display (screen),
3759 &pointer_screen, &x, &y, NULL);
3761 gtk_widget_style_get (GTK_WIDGET (menu),
3762 "scroll-arrow-vlength", &scroll_arrow_height,
3765 /* We need the requisition to figure out the right place to
3766 * popup the menu. In fact, we always need to ask here, since
3767 * if a size_request was queued while we weren't popped up,
3768 * the requisition won't have been recomputed yet.
3770 gtk_widget_size_request (widget, &requisition);
3772 if (pointer_screen != screen)
3774 /* Pointer is on a different screen; roughly center the
3775 * menu on the screen. If someone was using multiscreen
3776 * + Xinerama together they'd probably want something
3777 * fancier; but that is likely to be vanishingly rare.
3779 x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
3780 y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
3783 private = gtk_menu_get_private (menu);
3784 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3786 private->initially_pushed_in = FALSE;
3788 /* Set the type hint here to allow custom position functions to set a different hint */
3789 if (!GTK_WIDGET_VISIBLE (menu->toplevel))
3790 gtk_window_set_type_hint (GTK_WINDOW (menu->toplevel), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
3792 if (menu->position_func)
3794 (* menu->position_func) (menu, &x, &y, &private->initially_pushed_in,
3795 menu->position_func_data);
3796 if (private->monitor_num < 0)
3797 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3799 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3803 gint space_left, space_right, space_above, space_below;
3806 gint xthickness = widget->style->xthickness;
3807 gint ythickness = widget->style->ythickness;
3808 gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
3810 /* The placement of popup menus horizontally works like this (with
3811 * RTL in parentheses)
3813 * - If there is enough room to the right (left) of the mouse cursor,
3814 * position the menu there.
3816 * - Otherwise, if if there is enough room to the left (right) of the
3817 * mouse cursor, position the menu there.
3819 * - Otherwise if the menu is smaller than the monitor, position it
3820 * on the side of the mouse cursor that has the most space available
3822 * - Otherwise (if there is simply not enough room for the menu on the
3823 * monitor), position it as far left (right) as possible.
3825 * Positioning in the vertical direction is similar: first try below
3826 * mouse cursor, then above.
3828 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3830 space_left = x - monitor.x;
3831 space_right = monitor.x + monitor.width - x - 1;
3832 space_above = y - monitor.y;
3833 space_below = monitor.y + monitor.height - y - 1;
3835 /* position horizontally */
3837 /* the amount of space we need to position the menu. Note the
3838 * menu is offset "xthickness" pixels
3840 needed_width = requisition.width - xthickness;
3842 if (needed_width <= space_left ||
3843 needed_width <= space_right)
3845 if ((rtl && needed_width <= space_left) ||
3846 (!rtl && needed_width > space_right))
3849 x = x + xthickness - requisition.width + 1;
3853 /* position right */
3857 /* x is clamped on-screen further down */
3859 else if (requisition.width <= monitor.width)
3861 /* the menu is too big to fit on either side of the mouse
3862 * cursor, but smaller than the monitor. Position it on
3863 * the side that has the most space
3865 if (space_left > space_right)
3873 x = monitor.x + monitor.width - requisition.width;
3876 else /* menu is simply too big for the monitor */
3881 x = monitor.x + monitor.width - requisition.width;
3890 /* Position vertically. The algorithm is the same as above, but
3891 * simpler because we don't have to take RTL into account.
3893 needed_height = requisition.height - ythickness;
3895 if (needed_height <= space_above ||
3896 needed_height <= space_below)
3898 if (needed_height <= space_below)
3901 y = y + ythickness - requisition.height + 1;
3903 y = CLAMP (y, monitor.y,
3904 monitor.y + monitor.height - requisition.height);
3906 else if (needed_height > space_below && needed_height > space_above)
3908 if (space_below >= space_above)
3909 y = monitor.y + monitor.height - requisition.height;
3921 if (private->initially_pushed_in)
3923 menu_height = GTK_WIDGET (menu)->requisition.height;
3925 if (y + menu_height > monitor.y + monitor.height)
3927 scroll_offset -= y + menu_height - (monitor.y + monitor.height);
3928 y = (monitor.y + monitor.height) - menu_height;
3933 scroll_offset += monitor.y - y;
3938 /* FIXME: should this be done in the various position_funcs ? */
3939 x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
3941 if (GTK_MENU_SHELL (menu)->active)
3943 private->have_position = TRUE;
3948 if (y + requisition.height > monitor.y + monitor.height)
3949 requisition.height = (monitor.y + monitor.height) - y;
3953 scroll_offset += monitor.y - y;
3954 requisition.height -= monitor.y - y;
3958 if (scroll_offset > 0)
3959 scroll_offset += scroll_arrow_height;
3961 gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window),
3964 if (!GTK_MENU_SHELL (menu)->active)
3966 gtk_window_resize (GTK_WINDOW (menu->tearoff_window),
3967 requisition.width, requisition.height);
3970 menu->scroll_offset = scroll_offset;
3974 gtk_menu_remove_scroll_timeout (GtkMenu *menu)
3976 if (menu->timeout_id)
3978 g_source_remove (menu->timeout_id);
3979 menu->timeout_id = 0;
3984 gtk_menu_stop_scrolling (GtkMenu *menu)
3986 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (menu));
3987 gboolean touchscreen_mode;
3989 gtk_menu_remove_scroll_timeout (menu);
3991 g_object_get (G_OBJECT (settings),
3992 "gtk-touchscreen-mode", &touchscreen_mode,
3995 if (!touchscreen_mode)
3997 menu->upper_arrow_prelight = FALSE;
3998 menu->lower_arrow_prelight = FALSE;
4003 gtk_menu_scroll_to (GtkMenu *menu,
4008 gint view_width, view_height;
4011 guint vertical_padding;
4012 guint horizontal_padding;
4013 gboolean double_arrows;
4014 gint scroll_arrow_height;
4016 widget = GTK_WIDGET (menu);
4018 if (menu->tearoff_active &&
4019 menu->tearoff_adjustment &&
4020 (menu->tearoff_adjustment->value != offset))
4022 menu->tearoff_adjustment->value =
4024 0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
4025 gtk_adjustment_value_changed (menu->tearoff_adjustment);
4028 /* Move/resize the viewport according to arrows: */
4029 view_width = widget->allocation.width;
4030 view_height = widget->allocation.height;
4032 gtk_widget_style_get (GTK_WIDGET (menu),
4033 "vertical-padding", &vertical_padding,
4034 "horizontal-padding", &horizontal_padding,
4035 "scroll-arrow-vlength", &scroll_arrow_height,
4038 double_arrows = get_double_arrows (menu);
4040 border_width = GTK_CONTAINER (menu)->border_width;
4041 view_width -= (border_width + widget->style->xthickness + horizontal_padding) * 2;
4042 view_height -= (border_width + widget->style->ythickness + vertical_padding) * 2;
4043 menu_height = widget->requisition.height -
4044 (border_width + widget->style->ythickness + vertical_padding) * 2;
4046 x = border_width + widget->style->xthickness + horizontal_padding;
4047 y = border_width + widget->style->ythickness + vertical_padding;
4049 if (double_arrows && !menu->tearoff_active)
4051 if (view_height < menu_height ||
4052 (offset > 0 && menu->scroll_offset > 0) ||
4053 (offset < 0 && menu->scroll_offset < 0))
4055 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4056 GtkStateType upper_arrow_previous_state = priv->upper_arrow_state;
4057 GtkStateType lower_arrow_previous_state = priv->lower_arrow_state;
4059 if (!menu->upper_arrow_visible || !menu->lower_arrow_visible)
4060 gtk_widget_queue_draw (GTK_WIDGET (menu));
4062 view_height -= 2 * scroll_arrow_height;
4063 y += scroll_arrow_height;
4065 menu->upper_arrow_visible = menu->lower_arrow_visible = TRUE;
4068 priv->upper_arrow_state = GTK_STATE_INSENSITIVE;
4070 priv->upper_arrow_state = menu->upper_arrow_prelight ?
4071 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4073 if (offset >= menu_height - view_height)
4074 priv->lower_arrow_state = GTK_STATE_INSENSITIVE;
4076 priv->lower_arrow_state = menu->lower_arrow_prelight ?
4077 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4079 if ((priv->upper_arrow_state != upper_arrow_previous_state) ||
4080 (priv->lower_arrow_state != lower_arrow_previous_state))
4081 gtk_widget_queue_draw (GTK_WIDGET (menu));
4083 if (upper_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4084 priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4086 /* At the upper border, possibly remove timeout */
4087 if (menu->scroll_step < 0)
4089 gtk_menu_stop_scrolling (menu);
4090 gtk_widget_queue_draw (GTK_WIDGET (menu));
4094 if (lower_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4095 priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4097 /* At the lower border, possibly remove timeout */
4098 if (menu->scroll_step > 0)
4100 gtk_menu_stop_scrolling (menu);
4101 gtk_widget_queue_draw (GTK_WIDGET (menu));
4105 else if (menu->upper_arrow_visible || menu->lower_arrow_visible)
4109 menu->upper_arrow_visible = menu->lower_arrow_visible = FALSE;
4110 menu->upper_arrow_prelight = menu->lower_arrow_prelight = FALSE;
4112 gtk_menu_stop_scrolling (menu);
4113 gtk_widget_queue_draw (GTK_WIDGET (menu));
4116 else if (!menu->tearoff_active)
4118 gboolean last_visible;
4120 last_visible = menu->upper_arrow_visible;
4121 menu->upper_arrow_visible = offset > 0;
4123 if (menu->upper_arrow_visible)
4124 view_height -= scroll_arrow_height;
4126 if ((last_visible != menu->upper_arrow_visible) &&
4127 !menu->upper_arrow_visible)
4129 menu->upper_arrow_prelight = FALSE;
4131 /* If we hid the upper arrow, possibly remove timeout */
4132 if (menu->scroll_step < 0)
4134 gtk_menu_stop_scrolling (menu);
4135 gtk_widget_queue_draw (GTK_WIDGET (menu));
4139 last_visible = menu->lower_arrow_visible;
4140 menu->lower_arrow_visible = offset < menu_height - view_height;
4142 if (menu->lower_arrow_visible)
4143 view_height -= scroll_arrow_height;
4145 if ((last_visible != menu->lower_arrow_visible) &&
4146 !menu->lower_arrow_visible)
4148 menu->lower_arrow_prelight = FALSE;
4150 /* If we hid the lower arrow, possibly remove timeout */
4151 if (menu->scroll_step > 0)
4153 gtk_menu_stop_scrolling (menu);
4154 gtk_widget_queue_draw (GTK_WIDGET (menu));
4158 if (menu->upper_arrow_visible)
4159 y += scroll_arrow_height;
4162 /* Scroll the menu: */
4163 if (GTK_WIDGET_REALIZED (menu))
4164 gdk_window_move (menu->bin_window, 0, -offset);
4166 if (GTK_WIDGET_REALIZED (menu))
4167 gdk_window_move_resize (menu->view_window,
4173 menu->scroll_offset = offset;
4177 compute_child_offset (GtkMenu *menu,
4178 GtkWidget *menu_item,
4181 gboolean *is_last_child)
4183 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4184 gint item_top_attach;
4185 gint item_bottom_attach;
4186 gint child_offset = 0;
4189 get_effective_child_attach (menu_item, NULL, NULL,
4190 &item_top_attach, &item_bottom_attach);
4192 /* there is a possibility that we get called before _size_request, so
4193 * check the height table for safety.
4195 if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
4198 /* when we have a row with only invisible children, it's height will
4199 * be zero, so there's no need to check WIDGET_VISIBLE here
4201 for (i = 0; i < item_top_attach; i++)
4202 child_offset += priv->heights[i];
4205 *is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
4207 *offset = child_offset;
4209 *height = priv->heights[item_top_attach];
4215 gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
4216 GtkWidget *menu_item)
4219 gint child_offset, child_height;
4223 gboolean last_child = 0;
4225 menu = GTK_MENU (menu_shell);
4227 /* We need to check if the selected item fully visible.
4228 * If not we need to scroll the menu so that it becomes fully
4232 if (compute_child_offset (menu, menu_item,
4233 &child_offset, &child_height, &last_child))
4235 guint vertical_padding;
4236 gboolean double_arrows;
4237 gint scroll_arrow_height;
4239 y = menu->scroll_offset;
4240 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
4242 gtk_widget_style_get (GTK_WIDGET (menu),
4243 "vertical-padding", &vertical_padding,
4244 "scroll-arrow-vlength", &scroll_arrow_height,
4247 double_arrows = get_double_arrows (menu);
4249 height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness + 2*vertical_padding;
4251 if (child_offset < y)
4253 /* Ignore the enter event we might get if the pointer is on the menu
4255 menu_shell->ignore_enter = TRUE;
4256 gtk_menu_scroll_to (menu, child_offset);
4261 if (menu->upper_arrow_visible && !menu->tearoff_active)
4262 arrow_height += scroll_arrow_height;
4263 if (menu->lower_arrow_visible && !menu->tearoff_active)
4264 arrow_height += scroll_arrow_height;
4266 if (child_offset + child_height > y + height - arrow_height)
4269 if ((!last_child && !menu->tearoff_active) || double_arrows)
4270 arrow_height += scroll_arrow_height;
4272 y = child_offset + child_height - height + arrow_height;
4273 if (((y > 0) && !menu->tearoff_active) || double_arrows)
4275 /* Need upper arrow */
4276 arrow_height += scroll_arrow_height;
4277 y = child_offset + child_height - height + arrow_height;
4279 /* Ignore the enter event we might get if the pointer is on the menu
4281 menu_shell->ignore_enter = TRUE;
4282 gtk_menu_scroll_to (menu, y);
4290 gtk_menu_select_item (GtkMenuShell *menu_shell,
4291 GtkWidget *menu_item)
4293 GtkMenu *menu = GTK_MENU (menu_shell);
4295 if (GTK_WIDGET_REALIZED (GTK_WIDGET (menu)))
4296 gtk_menu_scroll_item_visible (menu_shell, menu_item);
4298 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
4302 /* Reparent the menu, taking care of the refcounting
4304 * If unrealize is true we force a unrealize while reparenting the parent.
4305 * This can help eliminate flicker in some cases.
4307 * What happens is that when the menu is unrealized and then re-realized,
4308 * the allocations are as follows:
4310 * parent - 1x1 at (0,0)
4311 * child1 - 100x20 at (0,0)
4312 * child2 - 100x20 at (0,20)
4313 * child3 - 100x20 at (0,40)
4315 * That is, the parent is small but the children are full sized. Then,
4316 * when the queued_resize gets processed, the parent gets resized to
4319 * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
4320 * contains the following logic:
4322 * - if a move or resize operation on a window would change the clip
4323 * region on the children, then before the window is resized
4324 * the background for children is temporarily set to None, the
4325 * move/resize done, and the background for the children restored.
4327 * So, at the point where the parent is resized to final size, the
4328 * background for the children is temporarily None, and thus they
4329 * are not cleared to the background color and the previous background
4330 * (the image of the menu) is left in place.
4333 gtk_menu_reparent (GtkMenu *menu,
4334 GtkWidget *new_parent,
4337 GtkObject *object = GTK_OBJECT (menu);
4338 GtkWidget *widget = GTK_WIDGET (menu);
4339 gboolean was_floating = g_object_is_floating (object);
4341 g_object_ref_sink (object);
4345 g_object_ref (object);
4346 gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
4347 gtk_container_add (GTK_CONTAINER (new_parent), widget);
4348 g_object_unref (object);
4351 gtk_widget_reparent (GTK_WIDGET (menu), new_parent);
4354 g_object_force_floating (G_OBJECT (object));
4356 g_object_unref (object);
4360 gtk_menu_show_all (GtkWidget *widget)
4362 /* Show children, but not self. */
4363 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
4368 gtk_menu_hide_all (GtkWidget *widget)
4370 /* Hide children, but not self. */
4371 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
4375 * gtk_menu_set_screen:
4376 * @menu: a #GtkMenu.
4377 * @screen: a #GdkScreen, or %NULL if the screen should be
4378 * determined by the widget the menu is attached to.
4380 * Sets the #GdkScreen on which the menu will be displayed.
4385 gtk_menu_set_screen (GtkMenu *menu,
4388 g_return_if_fail (GTK_IS_MENU (menu));
4389 g_return_if_fail (!screen || GDK_IS_SCREEN (screen));
4391 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-screen"), screen);
4395 menu_change_screen (menu, screen);
4399 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
4401 attach_widget_screen_changed (attach_widget, NULL, menu);
4407 * @menu: a #GtkMenu.
4408 * @child: a #GtkMenuItem.
4409 * @left_attach: The column number to attach the left side of the item to.
4410 * @right_attach: The column number to attach the right side of the item to.
4411 * @top_attach: The row number to attach the top of the item to.
4412 * @bottom_attach: The row number to attach the bottom of the item to.
4414 * Adds a new #GtkMenuItem to a (table) menu. The number of 'cells' that
4415 * an item will occupy is specified by @left_attach, @right_attach,
4416 * @top_attach and @bottom_attach. These each represent the leftmost,
4417 * rightmost, uppermost and lower column and row numbers of the table.
4418 * (Columns and rows are indexed from zero).
4420 * Note that this function is not related to gtk_menu_detach().
4425 gtk_menu_attach (GtkMenu *menu,
4430 guint bottom_attach)
4432 GtkMenuShell *menu_shell;
4434 g_return_if_fail (GTK_IS_MENU (menu));
4435 g_return_if_fail (GTK_IS_MENU_ITEM (child));
4436 g_return_if_fail (child->parent == NULL ||
4437 child->parent == GTK_WIDGET (menu));
4438 g_return_if_fail (left_attach < right_attach);
4439 g_return_if_fail (top_attach < bottom_attach);
4441 menu_shell = GTK_MENU_SHELL (menu);
4445 AttachInfo *ai = get_attach_info (child);
4447 ai->left_attach = left_attach;
4448 ai->right_attach = right_attach;
4449 ai->top_attach = top_attach;
4450 ai->bottom_attach = bottom_attach;
4452 menu_shell->children = g_list_append (menu_shell->children, child);
4454 gtk_widget_set_parent (child, GTK_WIDGET (menu));
4456 menu_queue_resize (menu);
4460 gtk_container_child_set (GTK_CONTAINER (child->parent), child,
4461 "left-attach", left_attach,
4462 "right-attach", right_attach,
4463 "top-attach", top_attach,
4464 "bottom-attach", bottom_attach,
4470 gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
4474 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
4475 "gtk-menu-popup-delay", &popup_delay,
4482 find_child_containing (GtkMenuShell *menu_shell,
4490 /* find a child which includes the area given by
4491 * left, right, top, bottom.
4494 for (list = menu_shell->children; list; list = list->next)
4498 if (!_gtk_menu_item_is_selectable (list->data))
4501 get_effective_child_attach (list->data, &l, &r, &t, &b);
4503 if (l <= left && right <= r
4504 && t <= top && bottom <= b)
4505 return GTK_WIDGET (list->data);
4512 gtk_menu_move_current (GtkMenuShell *menu_shell,
4513 GtkMenuDirectionType direction)
4515 GtkMenu *menu = GTK_MENU (menu_shell);
4518 GtkWidget *match = NULL;
4520 if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
4524 case GTK_MENU_DIR_CHILD:
4525 direction = GTK_MENU_DIR_PARENT;
4527 case GTK_MENU_DIR_PARENT:
4528 direction = GTK_MENU_DIR_CHILD;
4534 /* use special table menu key bindings */
4535 if (menu_shell->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
4537 get_effective_child_attach (menu_shell->active_menu_item, &l, &r, &t, &b);
4539 if (direction == GTK_MENU_DIR_NEXT)
4541 for (i = b; i < gtk_menu_get_n_rows (menu); i++)
4543 match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
4551 for (i = 0; i < t; i++)
4553 match = find_child_containing (menu_shell,
4554 l, l + 1, i, i + 1);
4560 else if (direction == GTK_MENU_DIR_PREV)
4562 for (i = t; i > 0; i--)
4564 match = find_child_containing (menu_shell, l, l + 1, i - 1, i);
4572 for (i = gtk_menu_get_n_rows (menu); i > b; i--)
4574 match = find_child_containing (menu_shell,
4575 l, l + 1, i - 1, i);
4581 else if (direction == GTK_MENU_DIR_PARENT)
4583 /* we go one left if possible */
4585 match = find_child_containing (menu_shell, l - 1, l, t, t + 1);
4589 GtkWidget *parent = menu_shell->parent_menu_shell;
4592 || g_list_length (GTK_MENU_SHELL (parent)->children) <= 1)
4593 match = menu_shell->active_menu_item;
4596 else if (direction == GTK_MENU_DIR_CHILD)
4598 /* we go one right if possible */
4599 if (r < gtk_menu_get_n_columns (menu))
4600 match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
4604 GtkWidget *parent = menu_shell->parent_menu_shell;
4606 if (! GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu &&
4608 g_list_length (GTK_MENU_SHELL (parent)->children) <= 1))
4609 match = menu_shell->active_menu_item;
4615 gtk_menu_shell_select_item (menu_shell, match);
4620 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
4624 get_visible_size (GtkMenu *menu)
4626 GtkWidget *widget = GTK_WIDGET (menu);
4627 GtkContainer *container = GTK_CONTAINER (menu);
4628 gint scroll_arrow_height;
4630 gint menu_height = (widget->allocation.height
4631 - 2 * (container->border_width
4632 + widget->style->ythickness));
4634 gtk_widget_style_get (GTK_WIDGET (menu),
4635 "scroll-arrow-vlength", &scroll_arrow_height,
4638 if (menu->upper_arrow_visible && !menu->tearoff_active)
4639 menu_height -= scroll_arrow_height;
4640 if (menu->lower_arrow_visible && !menu->tearoff_active)
4641 menu_height -= scroll_arrow_height;
4646 /* Find the sensitive on-screen child containing @y, or if none,
4647 * the nearest selectable onscreen child. (%NULL if none)
4650 child_at (GtkMenu *menu,
4653 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4654 GtkWidget *child = NULL;
4655 gint child_offset = 0;
4658 gint lower, upper; /* Onscreen bounds */
4660 menu_height = get_visible_size (menu);
4661 lower = menu->scroll_offset;
4662 upper = menu->scroll_offset + menu_height;
4664 for (children = menu_shell->children; children; children = children->next)
4666 if (GTK_WIDGET_VISIBLE (children->data))
4668 GtkRequisition child_requisition;
4670 gtk_widget_size_request (children->data, &child_requisition);
4672 if (_gtk_menu_item_is_selectable (children->data) &&
4673 child_offset >= lower &&
4674 child_offset + child_requisition.height <= upper)
4676 child = children->data;
4678 if (child_offset + child_requisition.height > y &&
4679 !GTK_IS_TEAROFF_MENU_ITEM (child))
4683 child_offset += child_requisition.height;
4691 get_menu_height (GtkMenu *menu)
4694 GtkWidget *widget = GTK_WIDGET (menu);
4695 gint scroll_arrow_height;
4697 gtk_widget_style_get (GTK_WIDGET (menu),
4698 "scroll-arrow-vlength", &scroll_arrow_height,
4701 height = widget->requisition.height;
4702 height -= (GTK_CONTAINER (widget)->border_width + widget->style->ythickness) * 2;
4704 if (menu->upper_arrow_visible && !menu->tearoff_active)
4705 height -= scroll_arrow_height;
4707 if (menu->lower_arrow_visible && !menu->tearoff_active)
4708 height -= scroll_arrow_height;
4714 gtk_menu_real_move_scroll (GtkMenu *menu,
4717 gint page_size = get_visible_size (menu);
4718 gint end_position = get_menu_height (menu);
4719 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4720 gint scroll_arrow_height;
4722 gtk_widget_style_get (GTK_WIDGET (menu),
4723 "scroll-arrow-vlength", &scroll_arrow_height,
4728 case GTK_SCROLL_PAGE_UP:
4729 case GTK_SCROLL_PAGE_DOWN:
4733 gint child_offset = 0;
4734 gboolean old_upper_arrow_visible;
4737 if (type == GTK_SCROLL_PAGE_UP)
4742 if (menu_shell->active_menu_item)
4746 compute_child_offset (menu, menu_shell->active_menu_item,
4747 &child_offset, &child_height, NULL);
4748 child_offset += child_height / 2;
4751 menu_shell->ignore_enter = TRUE;
4752 old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4753 old_offset = menu->scroll_offset;
4755 new_offset = menu->scroll_offset + step;
4756 new_offset = CLAMP (new_offset, 0, end_position - page_size);
4758 gtk_menu_scroll_to (menu, new_offset);
4760 if (menu_shell->active_menu_item)
4762 GtkWidget *new_child;
4763 gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4765 if (menu->scroll_offset != old_offset)
4766 step = menu->scroll_offset - old_offset;
4768 step -= (new_upper_arrow_visible - old_upper_arrow_visible) * scroll_arrow_height;
4770 new_child = child_at (menu, child_offset + step);
4772 gtk_menu_shell_select_item (menu_shell, new_child);
4776 case GTK_SCROLL_START:
4777 /* Ignore the enter event we might get if the pointer is on the menu
4779 menu_shell->ignore_enter = TRUE;
4780 gtk_menu_scroll_to (menu, 0);
4781 gtk_menu_shell_select_first (menu_shell, TRUE);
4783 case GTK_SCROLL_END:
4784 /* Ignore the enter event we might get if the pointer is on the menu
4786 menu_shell->ignore_enter = TRUE;
4787 gtk_menu_scroll_to (menu, end_position - page_size);
4788 _gtk_menu_shell_select_last (menu_shell, TRUE);
4797 * gtk_menu_set_monitor:
4799 * @monitor_num: the number of the monitor on which the menu should
4802 * Informs GTK+ on which monitor a menu should be popped up.
4803 * See gdk_screen_get_monitor_geometry().
4805 * This function should be called from a #GtkMenuPositionFunc if the
4806 * menu should not appear on the same monitor as the pointer. This
4807 * information can't be reliably inferred from the coordinates returned
4808 * by a #GtkMenuPositionFunc, since, for very long menus, these coordinates
4809 * may extend beyond the monitor boundaries or even the screen boundaries.
4814 gtk_menu_set_monitor (GtkMenu *menu,
4817 GtkMenuPrivate *priv;
4818 g_return_if_fail (GTK_IS_MENU (menu));
4820 priv = gtk_menu_get_private (menu);
4822 priv->monitor_num = monitor_num;
4826 * gtk_menu_get_for_attach_widget:
4827 * @widget: a #GtkWidget
4829 * Returns a list of the menus which are attached to this widget.
4830 * This list is owned by GTK+ and must not be modified.
4832 * Return value: the list of menus attached to his widget.
4837 gtk_menu_get_for_attach_widget (GtkWidget *widget)
4841 g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
4843 list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
4848 gtk_menu_grab_notify (GtkWidget *widget,
4849 gboolean was_grabbed)
4851 GtkWidget *toplevel;
4852 GtkWindowGroup *group;
4855 toplevel = gtk_widget_get_toplevel (widget);
4856 group = gtk_window_get_group (GTK_WINDOW (toplevel));
4857 grab = _gtk_window_group_get_current_grab (group);
4861 if (GTK_MENU_SHELL (widget)->active && !GTK_IS_MENU_SHELL (grab))
4862 gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
4866 #define __GTK_MENU_C__
4867 #include "gtkaliasdef.c"