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_remove_scroll_timeout (menu);
915 data = g_object_get_data (G_OBJECT (object), attach_data_key);
917 gtk_menu_detach (menu);
919 gtk_menu_stop_navigating_submenu (menu);
921 if (menu->old_active_menu_item)
923 g_object_unref (menu->old_active_menu_item);
924 menu->old_active_menu_item = NULL;
927 /* Add back the reference count for being a child */
928 if (menu->needs_destruction_ref_count)
930 menu->needs_destruction_ref_count = FALSE;
931 g_object_ref (object);
934 if (menu->accel_group)
936 g_object_unref (menu->accel_group);
937 menu->accel_group = NULL;
941 gtk_widget_destroy (menu->toplevel);
943 if (menu->tearoff_window)
944 gtk_widget_destroy (menu->tearoff_window);
946 priv = gtk_menu_get_private (menu);
950 g_free (priv->heights);
951 priv->heights = NULL;
956 g_free (priv->title);
960 GTK_OBJECT_CLASS (gtk_menu_parent_class)->destroy (object);
964 gtk_menu_finalize (GObject *object)
966 GtkMenu *menu = GTK_MENU (object);
968 g_free (menu->accel_path);
970 G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
974 menu_change_screen (GtkMenu *menu,
975 GdkScreen *new_screen)
977 GtkMenuPrivate *private = gtk_menu_get_private (menu);
979 if (gtk_widget_has_screen (GTK_WIDGET (menu)))
981 if (new_screen == gtk_widget_get_screen (GTK_WIDGET (menu)))
987 gtk_window_set_screen (GTK_WINDOW (menu->tearoff_window), new_screen);
988 gtk_menu_position (menu);
991 gtk_window_set_screen (GTK_WINDOW (menu->toplevel), new_screen);
992 private->monitor_num = -1;
996 attach_widget_screen_changed (GtkWidget *attach_widget,
997 GdkScreen *previous_screen,
1000 if (gtk_widget_has_screen (attach_widget) &&
1001 !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1003 menu_change_screen (menu, gtk_widget_get_screen (attach_widget));
1008 gtk_menu_attach_to_widget (GtkMenu *menu,
1009 GtkWidget *attach_widget,
1010 GtkMenuDetachFunc detacher)
1012 GtkMenuAttachData *data;
1015 g_return_if_fail (GTK_IS_MENU (menu));
1016 g_return_if_fail (GTK_IS_WIDGET (attach_widget));
1018 /* keep this function in sync with gtk_widget_set_parent()
1021 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1024 g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
1025 g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
1029 g_object_ref_sink (menu);
1031 data = g_new (GtkMenuAttachData, 1);
1032 data->attach_widget = attach_widget;
1034 g_signal_connect (attach_widget, "screen_changed",
1035 G_CALLBACK (attach_widget_screen_changed), menu);
1036 attach_widget_screen_changed (attach_widget, NULL, menu);
1038 data->detacher = detacher;
1039 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
1040 list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
1041 if (!g_list_find (list, menu))
1043 list = g_list_prepend (list, menu);
1045 g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1047 if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL)
1048 gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL);
1050 /* we don't need to set the style here, since
1051 * we are a toplevel widget.
1054 /* Fallback title for menu comes from attach widget */
1055 gtk_menu_update_title (menu);
1059 gtk_menu_get_attach_widget (GtkMenu *menu)
1061 GtkMenuAttachData *data;
1063 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1065 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1067 return data->attach_widget;
1072 gtk_menu_detach (GtkMenu *menu)
1074 GtkMenuAttachData *data;
1077 g_return_if_fail (GTK_IS_MENU (menu));
1079 /* keep this function in sync with gtk_widget_unparent()
1081 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1084 g_warning ("gtk_menu_detach(): menu is not attached");
1087 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
1089 g_signal_handlers_disconnect_by_func (data->attach_widget,
1090 (gpointer) attach_widget_screen_changed,
1094 data->detacher (data->attach_widget, menu);
1095 list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
1096 list = g_list_remove (list, menu);
1098 g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1100 g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
1102 if (GTK_WIDGET_REALIZED (menu))
1103 gtk_widget_unrealize (GTK_WIDGET (menu));
1107 /* Fallback title for menu comes from attach widget */
1108 gtk_menu_update_title (menu);
1110 g_object_unref (menu);
1114 gtk_menu_remove (GtkContainer *container,
1119 g_return_if_fail (GTK_IS_MENU (container));
1120 g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1122 menu = GTK_MENU (container);
1124 /* Clear out old_active_menu_item if it matches the item we are removing
1126 if (menu->old_active_menu_item == widget)
1128 g_object_unref (menu->old_active_menu_item);
1129 menu->old_active_menu_item = NULL;
1132 GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
1133 g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
1135 menu_queue_resize (menu);
1141 return g_object_new (GTK_TYPE_MENU, NULL);
1145 gtk_menu_real_insert (GtkMenuShell *menu_shell,
1149 GtkMenu *menu = GTK_MENU (menu_shell);
1150 AttachInfo *ai = get_attach_info (child);
1152 ai->left_attach = -1;
1153 ai->right_attach = -1;
1154 ai->top_attach = -1;
1155 ai->bottom_attach = -1;
1157 if (GTK_WIDGET_REALIZED (menu_shell))
1158 gtk_widget_set_parent_window (child, menu->bin_window);
1160 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
1162 menu_queue_resize (menu);
1166 gtk_menu_tearoff_bg_copy (GtkMenu *menu)
1171 widget = GTK_WIDGET (menu);
1177 GdkGCValues gc_values;
1179 menu->tearoff_active = FALSE;
1180 menu->saved_scroll_offset = menu->scroll_offset;
1182 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
1183 gc = gdk_gc_new_with_values (widget->window,
1184 &gc_values, GDK_GC_SUBWINDOW);
1186 gdk_drawable_get_size (menu->tearoff_window->window, &width, &height);
1188 pixmap = gdk_pixmap_new (menu->tearoff_window->window,
1193 gdk_draw_drawable (pixmap, gc,
1194 menu->tearoff_window->window,
1195 0, 0, 0, 0, -1, -1);
1196 g_object_unref (gc);
1198 gtk_widget_set_size_request (menu->tearoff_window,
1202 gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE);
1203 g_object_unref (pixmap);
1208 popup_grab_on_window (GdkWindow *window,
1209 guint32 activate_time,
1210 gboolean grab_keyboard)
1212 if ((gdk_pointer_grab (window, TRUE,
1213 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1214 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
1215 GDK_POINTER_MOTION_MASK,
1216 NULL, NULL, activate_time) == 0))
1218 if (!grab_keyboard ||
1219 gdk_keyboard_grab (window, TRUE,
1220 activate_time) == 0)
1224 gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
1235 * @menu: a #GtkMenu.
1236 * @parent_menu_shell: the menu shell containing the triggering menu item, or %NULL
1237 * @parent_menu_item: the menu item whose activation triggered the popup, or %NULL
1238 * @func: a user supplied function used to position the menu, or %NULL
1239 * @data: user supplied data to be passed to @func.
1240 * @button: the mouse button which was pressed to initiate the event.
1241 * @activate_time: the time at which the activation event occurred.
1243 * Displays a menu and makes it available for selection. Applications can use
1244 * this function to display context-sensitive menus, and will typically supply
1245 * %NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
1246 * parameters. The default menu positioning function will position the menu
1247 * at the current mouse cursor position.
1249 * The @button parameter should be the mouse button pressed to initiate
1250 * the menu popup. If the menu popup was initiated by something other than
1251 * a mouse button press, such as a mouse button release or a keypress,
1252 * @button should be 0.
1254 * The @activate_time parameter should be the time stamp of the event that
1255 * initiated the popup. If such an event is not available, use
1256 * gtk_get_current_event_time() instead.
1260 gtk_menu_popup (GtkMenu *menu,
1261 GtkWidget *parent_menu_shell,
1262 GtkWidget *parent_menu_item,
1263 GtkMenuPositionFunc func,
1266 guint32 activate_time)
1269 GtkWidget *xgrab_shell;
1271 GdkEvent *current_event;
1272 GtkMenuShell *menu_shell;
1273 gboolean grab_keyboard;
1274 GtkMenuPrivate *priv;
1275 GtkWidget *parent_toplevel;
1277 g_return_if_fail (GTK_IS_MENU (menu));
1279 widget = GTK_WIDGET (menu);
1280 menu_shell = GTK_MENU_SHELL (menu);
1281 priv = gtk_menu_get_private (menu);
1283 menu_shell->parent_menu_shell = parent_menu_shell;
1285 priv->seen_item_enter = FALSE;
1287 /* Find the last viewable ancestor, and make an X grab on it
1289 parent = GTK_WIDGET (menu);
1293 gboolean viewable = TRUE;
1294 GtkWidget *tmp = parent;
1298 if (!GTK_WIDGET_MAPPED (tmp))
1307 xgrab_shell = parent;
1309 parent = GTK_MENU_SHELL (parent)->parent_menu_shell;
1312 /* We want to receive events generated when we map the menu; unfortunately,
1313 * since there is probably already an implicit grab in place from the
1314 * button that the user used to pop up the menu, we won't receive then --
1315 * in particular, the EnterNotify when the menu pops up under the pointer.
1317 * If we are grabbing on a parent menu shell, no problem; just grab on
1318 * that menu shell first before popping up the window with owner_events = TRUE.
1320 * When grabbing on the menu itself, things get more convuluted - we
1321 * we do an explicit grab on a specially created window with
1322 * owner_events = TRUE, which we override further down with a grab
1323 * on the menu. (We can't grab on the menu until it is mapped; we
1324 * probably could just leave the grab on the other window, with a
1325 * little reorganization of the code in gtkmenu*).
1327 grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
1328 gtk_window_set_accept_focus (GTK_WINDOW (menu->toplevel), grab_keyboard);
1330 if (xgrab_shell && xgrab_shell != widget)
1332 if (popup_grab_on_window (xgrab_shell->window, activate_time, grab_keyboard))
1333 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1337 GdkWindow *transfer_window;
1339 xgrab_shell = widget;
1340 transfer_window = menu_grab_transfer_window_get (menu);
1341 if (popup_grab_on_window (transfer_window, activate_time, grab_keyboard))
1342 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1345 if (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)
1347 /* We failed to make our pointer/keyboard grab. Rather than leaving the user
1348 * with a stuck up window, we just abort here. Presumably the user will
1351 menu_shell->parent_menu_shell = NULL;
1352 menu_grab_transfer_window_destroy (menu);
1356 menu_shell->active = TRUE;
1357 menu_shell->button = button;
1359 /* If we are popping up the menu from something other than, a button
1360 * press then, as a heuristic, we ignore enter events for the menu
1361 * until we get a MOTION_NOTIFY.
1364 current_event = gtk_get_current_event ();
1367 if ((current_event->type != GDK_BUTTON_PRESS) &&
1368 (current_event->type != GDK_ENTER_NOTIFY))
1369 menu_shell->ignore_enter = TRUE;
1371 gdk_event_free (current_event);
1374 menu_shell->ignore_enter = TRUE;
1378 gtk_menu_tearoff_bg_copy (menu);
1380 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1383 parent_toplevel = NULL;
1384 if (parent_menu_shell)
1385 parent_toplevel = gtk_widget_get_toplevel (parent_menu_shell);
1386 else if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1388 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
1390 parent_toplevel = gtk_widget_get_toplevel (attach_widget);
1393 /* Set transient for to get the right window group and parent relationship */
1394 if (parent_toplevel && GTK_IS_WINDOW (parent_toplevel))
1395 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel),
1396 GTK_WINDOW (parent_toplevel));
1398 menu->parent_menu_item = parent_menu_item;
1399 menu->position_func = func;
1400 menu->position_func_data = data;
1401 menu_shell->activate_time = activate_time;
1403 /* We need to show the menu here rather in the init function because
1404 * code expects to be able to tell if the menu is onscreen by
1405 * looking at the GTK_WIDGET_VISIBLE (menu)
1407 gtk_widget_show (GTK_WIDGET (menu));
1409 /* Position the menu, possibly changing the size request
1411 gtk_menu_position (menu);
1413 /* Compute the size of the toplevel and realize it so we
1414 * can scroll correctly.
1417 GtkRequisition tmp_request;
1418 GtkAllocation tmp_allocation = { 0, };
1420 gtk_widget_size_request (menu->toplevel, &tmp_request);
1422 tmp_allocation.width = tmp_request.width;
1423 tmp_allocation.height = tmp_request.height;
1425 gtk_widget_size_allocate (menu->toplevel, &tmp_allocation);
1427 gtk_widget_realize (GTK_WIDGET (menu));
1430 gtk_menu_scroll_to (menu, menu->scroll_offset);
1432 /* if no item is selected, select the first one */
1433 if (!menu_shell->active_menu_item)
1435 gboolean touchscreen_mode;
1437 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
1438 "gtk-touchscreen-mode", &touchscreen_mode,
1441 if (touchscreen_mode)
1442 gtk_menu_shell_select_first (menu_shell, TRUE);
1445 /* Once everything is set up correctly, map the toplevel window on
1448 gtk_widget_show (menu->toplevel);
1450 if (xgrab_shell == widget)
1451 popup_grab_on_window (widget->window, activate_time, grab_keyboard); /* Should always succeed */
1452 gtk_grab_add (GTK_WIDGET (menu));
1456 gtk_menu_popdown (GtkMenu *menu)
1458 GtkMenuPrivate *private;
1459 GtkMenuShell *menu_shell;
1461 g_return_if_fail (GTK_IS_MENU (menu));
1463 menu_shell = GTK_MENU_SHELL (menu);
1464 private = gtk_menu_get_private (menu);
1466 menu_shell->parent_menu_shell = NULL;
1467 menu_shell->active = FALSE;
1468 menu_shell->ignore_enter = FALSE;
1470 private->have_position = FALSE;
1472 gtk_menu_stop_scrolling (menu);
1474 gtk_menu_stop_navigating_submenu (menu);
1476 if (menu_shell->active_menu_item)
1478 if (menu->old_active_menu_item)
1479 g_object_unref (menu->old_active_menu_item);
1480 menu->old_active_menu_item = menu_shell->active_menu_item;
1481 g_object_ref (menu->old_active_menu_item);
1484 gtk_menu_shell_deselect (menu_shell);
1486 /* The X Grab, if present, will automatically be removed when we hide
1488 gtk_widget_hide (menu->toplevel);
1489 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel), NULL);
1493 gtk_widget_set_size_request (menu->tearoff_window, -1, -1);
1495 if (GTK_BIN (menu->toplevel)->child)
1497 gtk_menu_reparent (menu, menu->tearoff_hbox, TRUE);
1501 /* We popped up the menu from the tearoff, so we need to
1502 * release the grab - we aren't actually hiding the menu.
1504 if (menu_shell->have_xgrab)
1506 GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu));
1508 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1509 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1513 /* gtk_menu_popdown is called each time a menu item is selected from
1514 * a torn off menu. Only scroll back to the saved position if the
1515 * non-tearoff menu was popped down.
1517 if (!menu->tearoff_active)
1518 gtk_menu_scroll_to (menu, menu->saved_scroll_offset);
1519 menu->tearoff_active = TRUE;
1522 gtk_widget_hide (GTK_WIDGET (menu));
1524 menu_shell->have_xgrab = FALSE;
1525 gtk_grab_remove (GTK_WIDGET (menu));
1527 menu_grab_transfer_window_destroy (menu);
1531 gtk_menu_get_active (GtkMenu *menu)
1536 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1538 if (!menu->old_active_menu_item)
1541 children = GTK_MENU_SHELL (menu)->children;
1545 child = children->data;
1546 children = children->next;
1548 if (GTK_BIN (child)->child)
1553 menu->old_active_menu_item = child;
1554 if (menu->old_active_menu_item)
1555 g_object_ref (menu->old_active_menu_item);
1558 return menu->old_active_menu_item;
1562 gtk_menu_set_active (GtkMenu *menu,
1568 g_return_if_fail (GTK_IS_MENU (menu));
1570 tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
1573 child = tmp_list->data;
1574 if (GTK_BIN (child)->child)
1576 if (menu->old_active_menu_item)
1577 g_object_unref (menu->old_active_menu_item);
1578 menu->old_active_menu_item = child;
1579 g_object_ref (menu->old_active_menu_item);
1585 gtk_menu_set_accel_group (GtkMenu *menu,
1586 GtkAccelGroup *accel_group)
1588 g_return_if_fail (GTK_IS_MENU (menu));
1590 if (menu->accel_group != accel_group)
1592 if (menu->accel_group)
1593 g_object_unref (menu->accel_group);
1594 menu->accel_group = accel_group;
1595 if (menu->accel_group)
1596 g_object_ref (menu->accel_group);
1597 _gtk_menu_refresh_accel_paths (menu, TRUE);
1602 gtk_menu_get_accel_group (GtkMenu *menu)
1604 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1606 return menu->accel_group;
1610 gtk_menu_real_can_activate_accel (GtkWidget *widget,
1613 /* Menu items chain here to figure whether they can activate their
1614 * accelerators. Unlike ordinary widgets, menus allow accel
1615 * activation even if invisible since that's the usual case for
1616 * submenus/popup-menus. however, the state of the attach widget
1617 * affects the "activeness" of the menu.
1619 GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
1622 return gtk_widget_can_activate_accel (awidget, signal_id);
1624 return GTK_WIDGET_IS_SENSITIVE (widget);
1628 * gtk_menu_set_accel_path
1629 * @menu: a valid #GtkMenu
1630 * @accel_path: a valid accelerator path
1632 * Sets an accelerator path for this menu from which accelerator paths
1633 * for its immediate children, its menu items, can be constructed.
1634 * The main purpose of this function is to spare the programmer the
1635 * inconvenience of having to call gtk_menu_item_set_accel_path() on
1636 * each menu item that should support runtime user changable accelerators.
1637 * Instead, by just calling gtk_menu_set_accel_path() on their parent,
1638 * each menu item of this menu, that contains a label describing its purpose,
1639 * automatically gets an accel path assigned. For example, a menu containing
1640 * menu items "New" and "Exit", will, after
1641 * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
1642 * has been called, assign its items the accel paths:
1643 * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
1644 * Assigning accel paths to menu items then enables the user to change
1645 * their accelerators at runtime. More details about accelerator paths
1646 * and their default setups can be found at gtk_accel_map_add_entry().
1649 gtk_menu_set_accel_path (GtkMenu *menu,
1650 const gchar *accel_path)
1652 g_return_if_fail (GTK_IS_MENU (menu));
1654 g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
1656 g_free (menu->accel_path);
1657 menu->accel_path = g_strdup (accel_path);
1658 if (menu->accel_path)
1659 _gtk_menu_refresh_accel_paths (menu, FALSE);
1664 gboolean group_changed;
1668 refresh_accel_paths_foreach (GtkWidget *widget,
1671 AccelPropagation *prop = data;
1673 if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
1674 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
1675 prop->menu->accel_path,
1676 prop->menu->accel_group,
1677 prop->group_changed);
1681 _gtk_menu_refresh_accel_paths (GtkMenu *menu,
1682 gboolean group_changed)
1684 g_return_if_fail (GTK_IS_MENU (menu));
1686 if (menu->accel_path && menu->accel_group)
1688 AccelPropagation prop;
1691 prop.group_changed = group_changed;
1692 gtk_container_foreach (GTK_CONTAINER (menu),
1693 refresh_accel_paths_foreach,
1699 gtk_menu_reposition (GtkMenu *menu)
1701 g_return_if_fail (GTK_IS_MENU (menu));
1703 if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off)
1704 gtk_menu_position (menu);
1708 gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
1711 g_return_if_fail (GTK_IS_MENU (menu));
1713 if (adjustment->value != menu->scroll_offset)
1714 gtk_menu_scroll_to (menu, adjustment->value);
1718 gtk_menu_set_tearoff_hints (GtkMenu *menu,
1721 GdkGeometry geometry_hints;
1723 if (!menu->tearoff_window)
1726 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
1728 gtk_widget_size_request (menu->tearoff_scrollbar, NULL);
1729 width += menu->tearoff_scrollbar->requisition.width;
1732 geometry_hints.min_width = width;
1733 geometry_hints.max_width = width;
1735 geometry_hints.min_height = 0;
1736 geometry_hints.max_height = GTK_WIDGET (menu)->requisition.height;
1738 gtk_window_set_geometry_hints (GTK_WINDOW (menu->tearoff_window),
1741 GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
1745 gtk_menu_update_title (GtkMenu *menu)
1747 if (menu->tearoff_window)
1750 GtkWidget *attach_widget;
1752 title = gtk_menu_get_title (menu);
1755 attach_widget = gtk_menu_get_attach_widget (menu);
1756 if (GTK_IS_MENU_ITEM (attach_widget))
1758 GtkWidget *child = GTK_BIN (attach_widget)->child;
1759 if (GTK_IS_LABEL (child))
1760 title = gtk_label_get_text (GTK_LABEL (child));
1765 gtk_window_set_title (GTK_WINDOW (menu->tearoff_window), title);
1770 gtk_menu_get_toplevel (GtkWidget *menu)
1772 GtkWidget *attach, *toplevel;
1774 attach = gtk_menu_get_attach_widget (GTK_MENU (menu));
1776 if (GTK_IS_MENU_ITEM (attach))
1777 attach = attach->parent;
1779 if (GTK_IS_MENU (attach))
1780 return gtk_menu_get_toplevel (attach);
1781 else if (GTK_IS_WIDGET (attach))
1783 toplevel = gtk_widget_get_toplevel (attach);
1784 if (GTK_WIDGET_TOPLEVEL (toplevel))
1792 tearoff_window_destroyed (GtkWidget *widget,
1795 gtk_menu_set_tearoff_state (menu, FALSE);
1799 gtk_menu_set_tearoff_state (GtkMenu *menu,
1804 g_return_if_fail (GTK_IS_MENU (menu));
1806 if (menu->torn_off != torn_off)
1808 menu->torn_off = torn_off;
1809 menu->tearoff_active = torn_off;
1813 if (GTK_WIDGET_VISIBLE (menu))
1814 gtk_menu_popdown (menu);
1816 if (!menu->tearoff_window)
1818 GtkWidget *toplevel;
1820 menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW,
1821 "type", GTK_WINDOW_TOPLEVEL,
1822 "screen", gtk_widget_get_screen (menu->toplevel),
1823 "app-paintable", TRUE,
1826 gtk_window_set_type_hint (GTK_WINDOW (menu->tearoff_window),
1827 GDK_WINDOW_TYPE_HINT_MENU);
1828 gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->tearoff_window), 0);
1829 g_signal_connect (menu->tearoff_window, "destroy",
1830 G_CALLBACK (tearoff_window_destroyed), menu);
1831 g_signal_connect (menu->tearoff_window, "event",
1832 G_CALLBACK (gtk_menu_window_event), menu);
1834 gtk_menu_update_title (menu);
1836 gtk_widget_realize (menu->tearoff_window);
1838 toplevel = gtk_menu_get_toplevel (GTK_WIDGET (menu));
1839 if (toplevel != NULL)
1840 gtk_window_set_transient_for (GTK_WINDOW (menu->tearoff_window),
1841 GTK_WINDOW (toplevel));
1843 menu->tearoff_hbox = gtk_hbox_new (FALSE, FALSE);
1844 gtk_container_add (GTK_CONTAINER (menu->tearoff_window), menu->tearoff_hbox);
1846 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
1847 menu->tearoff_adjustment =
1848 GTK_ADJUSTMENT (gtk_adjustment_new (0,
1850 GTK_WIDGET (menu)->requisition.height,
1854 g_object_connect (menu->tearoff_adjustment,
1855 "signal::value_changed", gtk_menu_scrollbar_changed, menu,
1857 menu->tearoff_scrollbar = gtk_vscrollbar_new (menu->tearoff_adjustment);
1859 gtk_box_pack_end (GTK_BOX (menu->tearoff_hbox),
1860 menu->tearoff_scrollbar,
1863 if (menu->tearoff_adjustment->upper > height)
1864 gtk_widget_show (menu->tearoff_scrollbar);
1866 gtk_widget_show (menu->tearoff_hbox);
1869 gtk_menu_reparent (menu, menu->tearoff_hbox, FALSE);
1871 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, NULL);
1873 /* Update menu->requisition
1875 gtk_widget_size_request (GTK_WIDGET (menu), NULL);
1877 gtk_menu_set_tearoff_hints (menu, width);
1879 gtk_widget_realize (menu->tearoff_window);
1880 gtk_menu_position (menu);
1882 gtk_widget_show (GTK_WIDGET (menu));
1883 gtk_widget_show (menu->tearoff_window);
1885 gtk_menu_scroll_to (menu, 0);
1890 gtk_widget_hide (GTK_WIDGET (menu));
1891 gtk_widget_hide (menu->tearoff_window);
1892 if (GTK_IS_CONTAINER (menu->toplevel))
1893 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1894 gtk_widget_destroy (menu->tearoff_window);
1896 menu->tearoff_window = NULL;
1897 menu->tearoff_hbox = NULL;
1898 menu->tearoff_scrollbar = NULL;
1899 menu->tearoff_adjustment = NULL;
1902 g_object_notify (G_OBJECT (menu), "tearoff-state");
1907 * gtk_menu_get_tearoff_state:
1910 * Returns whether the menu is torn off. See
1911 * gtk_menu_set_tearoff_state ().
1913 * Return value: %TRUE if the menu is currently torn off.
1916 gtk_menu_get_tearoff_state (GtkMenu *menu)
1918 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
1920 return menu->torn_off;
1924 * gtk_menu_set_title:
1926 * @title: a string containing the title for the menu.
1928 * Sets the title string for the menu. The title is displayed when the menu
1929 * is shown as a tearoff menu. If @title is %NULL, the menu will see if it is
1930 * attached to a parent menu item, and if so it will try to use the same text as
1931 * that menu item's label.
1934 gtk_menu_set_title (GtkMenu *menu,
1937 GtkMenuPrivate *priv;
1940 g_return_if_fail (GTK_IS_MENU (menu));
1942 priv = gtk_menu_get_private (menu);
1944 old_title = priv->title;
1945 priv->title = g_strdup (title);
1948 gtk_menu_update_title (menu);
1949 g_object_notify (G_OBJECT (menu), "tearoff-title");
1953 * gtk_menu_get_title:
1956 * Returns the title of the menu. See gtk_menu_set_title().
1958 * Return value: the title of the menu, or %NULL if the menu has no
1959 * title set on it. This string is owned by the widget and should
1960 * not be modified or freed.
1962 G_CONST_RETURN gchar *
1963 gtk_menu_get_title (GtkMenu *menu)
1965 GtkMenuPrivate *priv;
1967 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1969 priv = gtk_menu_get_private (menu);
1975 gtk_menu_reorder_child (GtkMenu *menu,
1979 GtkMenuShell *menu_shell;
1981 g_return_if_fail (GTK_IS_MENU (menu));
1982 g_return_if_fail (GTK_IS_MENU_ITEM (child));
1984 menu_shell = GTK_MENU_SHELL (menu);
1986 if (g_list_find (menu_shell->children, child))
1988 menu_shell->children = g_list_remove (menu_shell->children, child);
1989 menu_shell->children = g_list_insert (menu_shell->children, child, position);
1991 menu_queue_resize (menu);
1996 gtk_menu_style_set (GtkWidget *widget,
1997 GtkStyle *previous_style)
1999 if (GTK_WIDGET_REALIZED (widget))
2001 GtkMenu *menu = GTK_MENU (widget);
2003 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2004 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2005 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2010 get_arrows_border (GtkMenu *menu, GtkBorder *border)
2012 guint scroll_arrow_height;
2014 gtk_widget_style_get (GTK_WIDGET (menu),
2015 "scroll-arrow-vlength", &scroll_arrow_height,
2018 border->top = menu->upper_arrow_visible ? scroll_arrow_height : 0;
2019 border->bottom = menu->lower_arrow_visible ? scroll_arrow_height : 0;
2021 border->left = border->right = 0;
2025 gtk_menu_realize (GtkWidget *widget)
2027 GdkWindowAttr attributes;
2028 gint attributes_mask;
2033 guint vertical_padding;
2034 guint horizontal_padding;
2035 GtkBorder arrow_border;
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,
2068 attributes.x = border_width + widget->style->xthickness + horizontal_padding;
2069 attributes.y = border_width + widget->style->ythickness + vertical_padding;
2070 attributes.width = MAX (1, widget->allocation.width - attributes.x * 2);
2071 attributes.height = MAX (1, widget->allocation.height - attributes.y * 2);
2073 get_arrows_border (menu, &arrow_border);
2074 attributes.y += arrow_border.top;
2075 attributes.height -= arrow_border.top;
2076 attributes.height -= arrow_border.bottom;
2078 menu->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
2079 gdk_window_set_user_data (menu->view_window, menu);
2083 attributes.width = MAX (1, widget->allocation.width - (border_width + widget->style->xthickness + horizontal_padding) * 2);
2084 attributes.height = MAX (1, widget->requisition.height - (border_width + widget->style->ythickness + vertical_padding) * 2);
2086 menu->bin_window = gdk_window_new (menu->view_window, &attributes, attributes_mask);
2087 gdk_window_set_user_data (menu->bin_window, menu);
2089 children = GTK_MENU_SHELL (menu)->children;
2092 child = children->data;
2093 children = children->next;
2095 gtk_widget_set_parent_window (child, menu->bin_window);
2098 widget->style = gtk_style_attach (widget->style, widget->window);
2099 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2100 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2101 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2103 if (GTK_MENU_SHELL (widget)->active_menu_item)
2104 gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
2105 GTK_MENU_SHELL (widget)->active_menu_item);
2107 gdk_window_show (menu->bin_window);
2108 gdk_window_show (menu->view_window);
2112 gtk_menu_focus (GtkWidget *widget,
2113 GtkDirectionType direction)
2116 * A menu or its menu items cannot have focus
2121 /* See notes in gtk_menu_popup() for information about the "grab transfer window"
2124 menu_grab_transfer_window_get (GtkMenu *menu)
2126 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2129 GdkWindowAttr attributes;
2130 gint attributes_mask;
2132 attributes.x = -100;
2133 attributes.y = -100;
2134 attributes.width = 10;
2135 attributes.height = 10;
2136 attributes.window_type = GDK_WINDOW_TEMP;
2137 attributes.wclass = GDK_INPUT_ONLY;
2138 attributes.override_redirect = TRUE;
2139 attributes.event_mask = 0;
2141 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
2143 window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
2144 &attributes, attributes_mask);
2145 gdk_window_set_user_data (window, menu);
2147 gdk_window_show (window);
2149 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), window);
2156 menu_grab_transfer_window_destroy (GtkMenu *menu)
2158 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2161 gdk_window_set_user_data (window, NULL);
2162 gdk_window_destroy (window);
2163 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), NULL);
2168 gtk_menu_unrealize (GtkWidget *widget)
2172 g_return_if_fail (GTK_IS_MENU (widget));
2174 menu = GTK_MENU (widget);
2176 menu_grab_transfer_window_destroy (menu);
2178 gdk_window_set_user_data (menu->view_window, NULL);
2179 gdk_window_destroy (menu->view_window);
2180 menu->view_window = NULL;
2182 gdk_window_set_user_data (menu->bin_window, NULL);
2183 gdk_window_destroy (menu->bin_window);
2184 menu->bin_window = NULL;
2186 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize) (widget);
2190 gtk_menu_size_request (GtkWidget *widget,
2191 GtkRequisition *requisition)
2195 GtkMenuShell *menu_shell;
2198 guint max_toggle_size;
2199 guint max_accel_width;
2200 guint vertical_padding;
2201 guint horizontal_padding;
2202 GtkRequisition child_requisition;
2203 GtkMenuPrivate *priv;
2205 g_return_if_fail (GTK_IS_MENU (widget));
2206 g_return_if_fail (requisition != NULL);
2208 menu = GTK_MENU (widget);
2209 menu_shell = GTK_MENU_SHELL (widget);
2210 priv = gtk_menu_get_private (menu);
2212 requisition->width = 0;
2213 requisition->height = 0;
2215 max_toggle_size = 0;
2216 max_accel_width = 0;
2218 g_free (priv->heights);
2219 priv->heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2220 priv->heights_length = gtk_menu_get_n_rows (menu);
2222 children = menu_shell->children;
2229 child = children->data;
2230 children = children->next;
2232 if (! GTK_WIDGET_VISIBLE (child))
2235 get_effective_child_attach (child, &l, &r, &t, &b);
2237 /* It's important to size_request the child
2238 * before doing the toggle size request, in
2239 * case the toggle size request depends on the size
2240 * request of a child of the child (e.g. for ImageMenuItem)
2243 GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE;
2244 gtk_widget_size_request (child, &child_requisition);
2246 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
2247 max_toggle_size = MAX (max_toggle_size, toggle_size);
2248 max_accel_width = MAX (max_accel_width,
2249 GTK_MENU_ITEM (child)->accelerator_width);
2251 part = child_requisition.width / (r - l);
2252 requisition->width = MAX (requisition->width, part);
2254 part = MAX (child_requisition.height, toggle_size) / (b - t);
2255 priv->heights[t] = MAX (priv->heights[t], part);
2258 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2259 requisition->height += priv->heights[i];
2261 requisition->width += max_toggle_size + max_accel_width;
2262 requisition->width *= gtk_menu_get_n_columns (menu);
2264 gtk_widget_style_get (GTK_WIDGET (menu),
2265 "vertical-padding", &vertical_padding,
2266 "horizontal-padding", &horizontal_padding,
2269 requisition->width += (GTK_CONTAINER (menu)->border_width + horizontal_padding +
2270 widget->style->xthickness) * 2;
2271 requisition->height += (GTK_CONTAINER (menu)->border_width + vertical_padding +
2272 widget->style->ythickness) * 2;
2274 menu->toggle_size = max_toggle_size;
2276 /* Don't resize the tearoff if it is not active, because it won't redraw (it is only a background pixmap).
2278 if (menu->tearoff_active)
2279 gtk_menu_set_tearoff_hints (menu, requisition->width);
2283 gtk_menu_size_allocate (GtkWidget *widget,
2284 GtkAllocation *allocation)
2287 GtkMenuShell *menu_shell;
2289 GtkAllocation child_allocation;
2290 GtkRequisition child_requisition;
2291 GtkMenuPrivate *priv;
2295 guint vertical_padding;
2296 guint horizontal_padding;
2298 g_return_if_fail (GTK_IS_MENU (widget));
2299 g_return_if_fail (allocation != NULL);
2301 menu = GTK_MENU (widget);
2302 menu_shell = GTK_MENU_SHELL (widget);
2303 priv = gtk_menu_get_private (menu);
2305 widget->allocation = *allocation;
2306 gtk_widget_get_child_requisition (GTK_WIDGET (menu), &child_requisition);
2308 gtk_widget_style_get (GTK_WIDGET (menu),
2309 "vertical-padding", &vertical_padding,
2310 "horizontal-padding", &horizontal_padding,
2313 x = GTK_CONTAINER (menu)->border_width + widget->style->xthickness + horizontal_padding;
2314 y = GTK_CONTAINER (menu)->border_width + widget->style->ythickness + vertical_padding;
2316 width = MAX (1, allocation->width - x * 2);
2317 height = MAX (1, allocation->height - y * 2);
2319 child_requisition.width -= x * 2;
2320 child_requisition.height -= y * 2;
2322 if (menu_shell->active)
2323 gtk_menu_scroll_to (menu, menu->scroll_offset);
2325 if (!menu->tearoff_active)
2327 GtkBorder arrow_border;
2329 get_arrows_border (menu, &arrow_border);
2330 y += arrow_border.top;
2331 height -= arrow_border.top;
2332 height -= arrow_border.bottom;
2335 if (GTK_WIDGET_REALIZED (widget))
2337 gdk_window_move_resize (widget->window,
2338 allocation->x, allocation->y,
2339 allocation->width, allocation->height);
2341 gdk_window_move_resize (menu->view_window,
2348 if (menu_shell->children)
2350 gint base_width = width / gtk_menu_get_n_columns (menu);
2352 children = menu_shell->children;
2355 child = children->data;
2356 children = children->next;
2358 if (GTK_WIDGET_VISIBLE (child))
2363 get_effective_child_attach (child, &l, &r, &t, &b);
2365 if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
2368 tmp = gtk_menu_get_n_columns (menu) - l;
2369 l = gtk_menu_get_n_columns (menu) - r;
2373 child_allocation.width = (r - l) * base_width;
2374 child_allocation.height = 0;
2375 child_allocation.x = l * base_width;
2376 child_allocation.y = 0;
2378 for (i = 0; i < b; i++)
2381 child_allocation.y += priv->heights[i];
2383 child_allocation.height += priv->heights[i];
2386 gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
2389 gtk_widget_size_allocate (child, &child_allocation);
2390 gtk_widget_queue_draw (child);
2394 /* Resize the item window */
2395 if (GTK_WIDGET_REALIZED (widget))
2401 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2402 height += priv->heights[i];
2404 width = gtk_menu_get_n_columns (menu) * base_width;
2405 gdk_window_resize (menu->bin_window, width, height);
2408 if (menu->tearoff_active)
2410 if (allocation->height >= widget->requisition.height)
2412 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2414 gtk_widget_hide (menu->tearoff_scrollbar);
2415 gtk_menu_set_tearoff_hints (menu, allocation->width);
2417 gtk_menu_scroll_to (menu, 0);
2422 menu->tearoff_adjustment->upper = widget->requisition.height;
2423 menu->tearoff_adjustment->page_size = allocation->height;
2425 if (menu->tearoff_adjustment->value + menu->tearoff_adjustment->page_size >
2426 menu->tearoff_adjustment->upper)
2429 value = menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size;
2432 gtk_menu_scroll_to (menu, value);
2435 gtk_adjustment_changed (menu->tearoff_adjustment);
2437 if (!GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2439 gtk_widget_show (menu->tearoff_scrollbar);
2440 gtk_menu_set_tearoff_hints (menu, allocation->width);
2448 get_arrows_visible_area (GtkMenu *menu,
2449 GdkRectangle *border,
2450 GdkRectangle *upper,
2451 GdkRectangle *lower,
2454 GtkWidget *widget = GTK_WIDGET (menu);
2455 guint vertical_padding;
2456 guint horizontal_padding;
2457 gint scroll_arrow_height;
2459 gtk_widget_style_get (widget,
2460 "vertical-padding", &vertical_padding,
2461 "horizontal-padding", &horizontal_padding,
2462 "scroll-arrow-vlength", &scroll_arrow_height,
2465 border->x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness + horizontal_padding;
2466 border->y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness + vertical_padding;
2467 gdk_drawable_get_size (widget->window, &border->width, &border->height);
2469 upper->x = border->x;
2470 upper->y = border->y;
2471 upper->width = border->width - 2 * border->x;
2472 upper->height = scroll_arrow_height;
2474 lower->x = border->x;
2475 lower->y = border->height - border->y - scroll_arrow_height;
2476 lower->width = border->width - 2 * border->x;
2477 lower->height = scroll_arrow_height;
2479 *arrow_space = scroll_arrow_height - 2 * widget->style->ythickness;
2483 gtk_menu_paint (GtkWidget *widget,
2484 GdkEventExpose *event)
2487 GtkMenuPrivate *priv;
2488 GdkRectangle border;
2493 g_return_if_fail (GTK_IS_MENU (widget));
2495 menu = GTK_MENU (widget);
2496 priv = gtk_menu_get_private (menu);
2498 get_arrows_visible_area (menu, &border, &upper, &lower, &arrow_space);
2500 if (event->window == widget->window)
2502 gint arrow_size = 0.7 * arrow_space;
2504 gtk_paint_box (widget->style,
2508 &event->area, widget, "menu",
2511 if (menu->upper_arrow_visible && !menu->tearoff_active)
2513 gtk_paint_box (widget->style,
2515 priv->upper_arrow_state,
2517 &event->area, widget, "menu",
2523 gtk_paint_arrow (widget->style,
2525 priv->upper_arrow_state,
2527 &event->area, widget, "menu_scroll_arrow_up",
2530 upper.x + (upper.width - arrow_size) / 2,
2531 upper.y + widget->style->ythickness + (arrow_space - arrow_size) / 2,
2532 arrow_size, arrow_size);
2535 if (menu->lower_arrow_visible && !menu->tearoff_active)
2537 gtk_paint_box (widget->style,
2539 priv->lower_arrow_state,
2541 &event->area, widget, "menu",
2547 gtk_paint_arrow (widget->style,
2549 priv->lower_arrow_state,
2551 &event->area, widget, "menu_scroll_arrow_down",
2554 lower.x + (lower.width - arrow_size) / 2,
2555 lower.y + widget->style->ythickness + (arrow_space - arrow_size) / 2,
2556 arrow_size, arrow_size);
2559 else if (event->window == menu->bin_window)
2561 gint y = -border.y + menu->scroll_offset;
2563 if (!menu->tearoff_active)
2565 GtkBorder arrow_border;
2567 get_arrows_border (menu, &arrow_border);
2568 y -= arrow_border.top;
2571 gtk_paint_box (widget->style,
2575 &event->area, widget, "menu",
2577 border.width, border.height);
2582 gtk_menu_expose (GtkWidget *widget,
2583 GdkEventExpose *event)
2585 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2586 g_return_val_if_fail (event != NULL, FALSE);
2588 if (GTK_WIDGET_DRAWABLE (widget))
2590 gtk_menu_paint (widget, event);
2592 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->expose_event) (widget, event);
2599 gtk_menu_show (GtkWidget *widget)
2601 GtkMenu *menu = GTK_MENU (widget);
2603 _gtk_menu_refresh_accel_paths (menu, FALSE);
2605 GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
2609 gtk_menu_button_scroll (GtkMenu *menu,
2610 GdkEventButton *event)
2612 if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
2614 gboolean touchscreen_mode;
2616 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
2617 "gtk-touchscreen-mode", &touchscreen_mode,
2620 if (touchscreen_mode)
2621 gtk_menu_handle_scrolling (menu,
2622 event->x_root, event->y_root,
2623 event->type == GDK_BUTTON_PRESS,
2633 pointer_in_menu_window (GtkWidget *widget,
2637 GtkMenu *menu = GTK_MENU (widget);
2639 if (GTK_WIDGET_MAPPED (menu->toplevel))
2641 GtkMenuShell *menu_shell;
2642 gint window_x, window_y;
2644 gdk_window_get_position (menu->toplevel->window, &window_x, &window_y);
2646 if (x_root >= window_x && x_root < window_x + widget->allocation.width &&
2647 y_root >= window_y && y_root < window_y + widget->allocation.height)
2650 menu_shell = GTK_MENU_SHELL (widget);
2652 if (GTK_IS_MENU (menu_shell->parent_menu_shell))
2653 return pointer_in_menu_window (menu_shell->parent_menu_shell,
2661 gtk_menu_button_press (GtkWidget *widget,
2662 GdkEventButton *event)
2664 if (event->type != GDK_BUTTON_PRESS)
2667 /* Don't pass down to menu shell for presses over scroll arrows
2669 if (gtk_menu_button_scroll (GTK_MENU (widget), event))
2672 /* Don't pass down to menu shell if a non-menuitem part of the menu
2673 * was clicked. The check for the event_widget being a GtkMenuShell
2674 * works because we have the pointer grabbed on menu_shell->window
2675 * with owner_events=TRUE, so all events that are either outside
2676 * the menu or on its border are delivered relative to
2677 * menu_shell->window.
2679 if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
2680 pointer_in_menu_window (widget, event->x_root, event->y_root))
2683 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_press_event (widget, event);
2687 gtk_menu_button_release (GtkWidget *widget,
2688 GdkEventButton *event)
2690 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2692 if (priv->ignore_button_release)
2694 priv->ignore_button_release = FALSE;
2698 if (event->type != GDK_BUTTON_RELEASE)
2701 /* Don't pass down to menu shell for releases over scroll arrows
2703 if (gtk_menu_button_scroll (GTK_MENU (widget), event))
2706 /* Don't pass down to menu shell if a non-menuitem part of the menu
2707 * was clicked (see comment in button_press()).
2709 if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
2710 pointer_in_menu_window (widget, event->x_root, event->y_root))
2713 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_release_event (widget, event);
2716 static const gchar *
2717 get_accel_path (GtkWidget *menu_item,
2722 GClosure *accel_closure;
2723 GtkAccelGroup *accel_group;
2725 path = _gtk_widget_get_accel_path (menu_item, locked);
2728 path = GTK_MENU_ITEM (menu_item)->accel_path;
2734 label = GTK_BIN (menu_item)->child;
2736 if (GTK_IS_ACCEL_LABEL (label))
2738 g_object_get (label,
2739 "accel-closure", &accel_closure,
2743 accel_group = gtk_accel_group_from_accel_closure (accel_closure);
2745 *locked = accel_group->lock_count > 0;
2755 gtk_menu_key_press (GtkWidget *widget,
2758 GtkMenuShell *menu_shell;
2760 gboolean delete = FALSE;
2761 gboolean can_change_accels;
2762 gchar *accel = NULL;
2763 guint accel_key, accel_mods;
2764 GdkModifierType consumed_modifiers;
2765 GdkDisplay *display;
2767 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2768 g_return_val_if_fail (event != NULL, FALSE);
2770 menu_shell = GTK_MENU_SHELL (widget);
2771 menu = GTK_MENU (widget);
2773 gtk_menu_stop_navigating_submenu (menu);
2775 if (GTK_WIDGET_CLASS (gtk_menu_parent_class)->key_press_event (widget, event))
2778 display = gtk_widget_get_display (widget);
2780 g_object_get (gtk_widget_get_settings (widget),
2781 "gtk-menu-bar-accel", &accel,
2782 "gtk-can-change-accels", &can_change_accels,
2785 if (accel && *accel)
2788 GdkModifierType mods = 0;
2790 gtk_accelerator_parse (accel, &keyval, &mods);
2793 g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
2795 /* FIXME this is wrong, needs to be in the global accel resolution
2796 * thing, to properly consider i18n etc., but that probably requires
2797 * AccelGroup changes etc.
2799 if (event->keyval == keyval && (mods & event->state) == mods)
2801 gtk_menu_shell_cancel (menu_shell);
2809 switch (event->keyval)
2820 /* Figure out what modifiers went into determining the key symbol */
2821 gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
2822 event->hardware_keycode, event->state, event->group,
2823 NULL, NULL, NULL, &consumed_modifiers);
2825 accel_key = gdk_keyval_to_lower (event->keyval);
2826 accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
2828 /* If lowercasing affects the keysym, then we need to include SHIFT in the modifiers,
2829 * We re-upper case when we match against the keyval, but display and save in caseless form.
2831 if (accel_key != event->keyval)
2832 accel_mods |= GDK_SHIFT_MASK;
2834 /* Modify the accelerators */
2835 if (can_change_accels &&
2836 menu_shell->active_menu_item &&
2837 GTK_BIN (menu_shell->active_menu_item)->child && /* no separators */
2838 GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && /* no submenus */
2839 (delete || gtk_accelerator_valid (accel_key, accel_mods)))
2841 GtkWidget *menu_item = menu_shell->active_menu_item;
2842 gboolean locked, replace_accels = TRUE;
2845 path = get_accel_path (menu_item, &locked);
2846 if (!path || locked)
2848 /* can't change accelerators on menu_items without paths
2849 * (basically, those items are accelerator-locked).
2851 /* g_print("item has no path or is locked, menu prefix: %s\n", menu->accel_path); */
2852 gtk_widget_error_bell (widget);
2858 /* For the keys that act to delete the current setting, we delete
2859 * the current setting if there is one, otherwise, we set the
2860 * key as the accelerator.
2866 if (gtk_accel_map_lookup_entry (path, &key) &&
2867 (key.accel_key || key.accel_mods))
2873 changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
2877 /* we failed, probably because this key is in use and
2880 /* g_print("failed to change\n"); */
2881 gtk_widget_error_bell (widget);
2890 check_threshold (GtkWidget *widget,
2891 int start_x, int start_y,
2897 ABS (start_x - x) > THRESHOLD ||
2898 ABS (start_y - y) > THRESHOLD;
2902 definitely_within_item (GtkWidget *widget,
2906 GdkWindow *window = GTK_MENU_ITEM (widget)->event_window;
2909 gdk_drawable_get_size (window, &w, &h);
2912 check_threshold (widget, 0, 0, x, y) &&
2913 check_threshold (widget, w - 1, 0, x, y) &&
2914 check_threshold (widget, w - 1, h - 1, x, y) &&
2915 check_threshold (widget, 0, h - 1, x, y);
2919 gtk_menu_motion_notify (GtkWidget *widget,
2920 GdkEventMotion *event)
2922 GtkWidget *menu_item;
2924 GtkMenuShell *menu_shell;
2926 gboolean need_enter;
2928 if (GTK_IS_MENU (widget))
2930 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2932 if (priv->ignore_button_release)
2933 priv->ignore_button_release = FALSE;
2935 gtk_menu_handle_scrolling (GTK_MENU (widget), event->x_root, event->y_root,
2939 /* We received the event for one of two reasons:
2941 * a) We are the active menu, and did gtk_grab_add()
2942 * b) The widget is a child of ours, and the event was propagated
2944 * Since for computation of navigation regions, we want the menu which
2945 * is the parent of the menu item, for a), we need to find that menu,
2946 * which may be different from 'widget'.
2948 menu_item = gtk_get_event_widget ((GdkEvent*) event);
2949 if (!GTK_IS_MENU_ITEM (menu_item) ||
2950 !GTK_IS_MENU (menu_item->parent))
2953 menu_shell = GTK_MENU_SHELL (menu_item->parent);
2954 menu = GTK_MENU (menu_shell);
2956 if (definitely_within_item (menu_item, event->x, event->y))
2957 menu_shell->activate_time = 0;
2959 need_enter = (menu->navigation_region != NULL || menu_shell->ignore_enter);
2961 /* Check to see if we are within an active submenu's navigation region
2963 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
2966 /* Make sure we pop down if we enter a non-selectable menu item, so we
2967 * don't show a submenu when the cursor is outside the stay-up triangle.
2969 if (!_gtk_menu_item_is_selectable (menu_item))
2971 gtk_menu_shell_deselect (menu_shell);
2977 /* The menu is now sensitive to enter events on its items, but
2978 * was previously sensitive. So we fake an enter event.
2982 menu_shell->ignore_enter = FALSE;
2984 gdk_drawable_get_size (event->window, &width, &height);
2985 if (event->x >= 0 && event->x < width &&
2986 event->y >= 0 && event->y < height)
2988 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
2991 send_event->crossing.window = g_object_ref (event->window);
2992 send_event->crossing.time = event->time;
2993 send_event->crossing.send_event = TRUE;
2994 send_event->crossing.x_root = event->x_root;
2995 send_event->crossing.y_root = event->y_root;
2996 send_event->crossing.x = event->x;
2997 send_event->crossing.y = event->y;
2998 send_event->crossing.state = event->state;
3000 /* We send the event to 'widget', the currently active menu,
3001 * instead of 'menu', the menu that the pointer is in. This
3002 * will ensure that the event will be ignored unless the
3003 * menuitem is a child of the active menu or some parent
3004 * menu of the active menu.
3006 result = gtk_widget_event (widget, send_event);
3007 gdk_event_free (send_event);
3017 get_double_arrows (GtkMenu *menu)
3019 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
3020 gboolean double_arrows;
3022 gtk_widget_style_get (GTK_WIDGET (menu),
3023 "double-arrows", &double_arrows,
3026 return double_arrows || (priv->initially_pushed_in &&
3027 menu->scroll_offset != 0);
3031 gtk_menu_scroll_by (GtkMenu *menu,
3036 gint view_width, view_height;
3037 gboolean double_arrows;
3038 GtkBorder arrow_border;
3040 widget = GTK_WIDGET (menu);
3041 offset = menu->scroll_offset + step;
3043 get_arrows_border (menu, &arrow_border);
3045 double_arrows = get_double_arrows (menu);
3047 /* If we scroll upward and the non-visible top part
3048 * is smaller than the scroll arrow it would be
3049 * pretty stupid to show the arrow and taking more
3050 * screen space than just scrolling to the top.
3053 if ((step < 0) && (offset < arrow_border.top))
3056 /* Don't scroll over the top if we weren't before: */
3057 if ((menu->scroll_offset >= 0) && (offset < 0))
3060 gdk_drawable_get_size (widget->window, &view_width, &view_height);
3062 if (menu->scroll_offset == 0 &&
3063 view_height >= widget->requisition.height)
3066 /* Don't scroll past the bottom if we weren't before: */
3067 if (menu->scroll_offset > 0)
3068 view_height -= arrow_border.top;
3070 /* When both arrows are always shown, reduce
3071 * view height even more.
3074 view_height -= arrow_border.bottom;
3076 if ((menu->scroll_offset + view_height <= widget->requisition.height) &&
3077 (offset + view_height > widget->requisition.height))
3078 offset = widget->requisition.height - view_height;
3080 if (offset != menu->scroll_offset)
3081 gtk_menu_scroll_to (menu, offset);
3085 gtk_menu_do_timeout_scroll (GtkMenu *menu,
3086 gboolean touchscreen_mode)
3088 gboolean upper_visible;
3089 gboolean lower_visible;
3091 upper_visible = menu->upper_arrow_visible;
3092 lower_visible = menu->lower_arrow_visible;
3094 gtk_menu_scroll_by (menu, menu->scroll_step);
3096 if (touchscreen_mode &&
3097 (upper_visible != menu->upper_arrow_visible ||
3098 lower_visible != menu->lower_arrow_visible))
3100 /* We are about to hide a scroll arrow while the mouse is pressed,
3101 * this would cause the uncovered menu item to be activated on button
3102 * release. Therefore we need to ignore button release here
3104 GTK_MENU_SHELL (menu)->ignore_enter = TRUE;
3105 gtk_menu_get_private (menu)->ignore_button_release = TRUE;
3110 gtk_menu_scroll_timeout (gpointer data)
3113 gboolean touchscreen_mode;
3115 menu = GTK_MENU (data);
3117 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3118 "gtk-touchscreen-mode", &touchscreen_mode,
3121 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3127 gtk_menu_scroll_timeout_initial (gpointer data)
3131 gboolean touchscreen_mode;
3133 menu = GTK_MENU (data);
3135 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3136 "gtk-timeout-repeat", &timeout,
3137 "gtk-touchscreen-mode", &touchscreen_mode,
3140 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3142 gtk_menu_remove_scroll_timeout (menu);
3144 menu->timeout_id = gdk_threads_add_timeout (timeout,
3145 gtk_menu_scroll_timeout,
3152 gtk_menu_start_scrolling (GtkMenu *menu)
3155 gboolean touchscreen_mode;
3157 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3158 "gtk-timeout-repeat", &timeout,
3159 "gtk-touchscreen-mode", &touchscreen_mode,
3162 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3164 menu->timeout_id = gdk_threads_add_timeout (timeout,
3165 gtk_menu_scroll_timeout_initial,
3170 gtk_menu_scroll (GtkWidget *widget,
3171 GdkEventScroll *event)
3173 GtkMenu *menu = GTK_MENU (widget);
3175 switch (event->direction)
3177 case GDK_SCROLL_RIGHT:
3178 case GDK_SCROLL_DOWN:
3179 gtk_menu_scroll_by (menu, MENU_SCROLL_STEP2);
3181 case GDK_SCROLL_LEFT:
3183 gtk_menu_scroll_by (menu, - MENU_SCROLL_STEP2);
3191 get_arrows_sensitive_area (GtkMenu *menu,
3192 GdkRectangle *upper,
3193 GdkRectangle *lower)
3197 guint vertical_padding;
3199 gint scroll_arrow_height;
3201 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
3203 gtk_widget_style_get (GTK_WIDGET (menu),
3204 "vertical-padding", &vertical_padding,
3205 "scroll-arrow-vlength", &scroll_arrow_height,
3208 border = GTK_CONTAINER (menu)->border_width +
3209 GTK_WIDGET (menu)->style->ythickness + vertical_padding;
3211 gdk_window_get_position (GTK_WIDGET (menu)->window, &win_x, &win_y);
3217 upper->width = width;
3218 upper->height = scroll_arrow_height + border;
3224 lower->y = win_y + height - border - scroll_arrow_height;
3225 lower->width = width;
3226 lower->height = scroll_arrow_height + border;
3232 gtk_menu_handle_scrolling (GtkMenu *menu,
3238 GtkMenuShell *menu_shell;
3239 GtkMenuPrivate *priv;
3242 gboolean scroll_fast = FALSE;
3244 gboolean touchscreen_mode;
3246 priv = gtk_menu_get_private (menu);
3248 menu_shell = GTK_MENU_SHELL (menu);
3250 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3251 "gtk-touchscreen-mode", &touchscreen_mode,
3254 gdk_window_get_position (menu->toplevel->window, &top_x, &top_y);
3258 /* upper arrow handling */
3260 get_arrows_sensitive_area (menu, &rect, NULL);
3263 if (menu->upper_arrow_visible && !menu->tearoff_active &&
3264 (x >= rect.x) && (x < rect.x + rect.width) &&
3265 (y >= rect.y) && (y < rect.y + rect.height))
3270 if (touchscreen_mode)
3271 menu->upper_arrow_prelight = in_arrow;
3273 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3275 gboolean arrow_pressed = FALSE;
3277 if (menu->upper_arrow_visible && !menu->tearoff_active)
3279 if (touchscreen_mode)
3281 if (enter && menu->upper_arrow_prelight)
3283 if (menu->timeout_id == 0)
3285 /* Deselect the active item so that
3286 * any submenus are popped down
3288 gtk_menu_shell_deselect (menu_shell);
3290 gtk_menu_remove_scroll_timeout (menu);
3291 menu->scroll_step = -MENU_SCROLL_STEP2; /* always fast */
3295 /* Only do stuff on click. */
3296 gtk_menu_start_scrolling (menu);
3297 arrow_pressed = TRUE;
3302 arrow_pressed = TRUE;
3307 gtk_menu_stop_scrolling (menu);
3310 else /* !touchscreen_mode */
3312 scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
3314 if (enter && in_arrow &&
3315 (!menu->upper_arrow_prelight ||
3316 menu->scroll_fast != scroll_fast))
3318 menu->upper_arrow_prelight = TRUE;
3319 menu->scroll_fast = scroll_fast;
3321 /* Deselect the active item so that
3322 * any submenus are popped down
3324 gtk_menu_shell_deselect (menu_shell);
3326 gtk_menu_remove_scroll_timeout (menu);
3327 menu->scroll_step = scroll_fast ?
3328 -MENU_SCROLL_STEP2 : -MENU_SCROLL_STEP1;
3331 gdk_threads_add_timeout (scroll_fast ?
3332 MENU_SCROLL_TIMEOUT2 :
3333 MENU_SCROLL_TIMEOUT1,
3334 gtk_menu_scroll_timeout, menu);
3336 else if (!enter && !in_arrow && menu->upper_arrow_prelight)
3338 gtk_menu_stop_scrolling (menu);
3343 /* gtk_menu_start_scrolling() might have hit the top of the
3344 * menu, so check if the button isn't insensitive before
3345 * changing it to something else.
3347 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3349 GtkStateType arrow_state = GTK_STATE_NORMAL;
3352 arrow_state = GTK_STATE_ACTIVE;
3353 else if (menu->upper_arrow_prelight)
3354 arrow_state = GTK_STATE_PRELIGHT;
3356 if (arrow_state != priv->upper_arrow_state)
3358 priv->upper_arrow_state = arrow_state;
3360 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3366 /* lower arrow handling */
3368 get_arrows_sensitive_area (menu, NULL, &rect);
3371 if (menu->lower_arrow_visible && !menu->tearoff_active &&
3372 (x >= rect.x) && (x < rect.x + rect.width) &&
3373 (y >= rect.y) && (y < rect.y + rect.height))
3378 if (touchscreen_mode)
3379 menu->lower_arrow_prelight = in_arrow;
3381 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3383 gboolean arrow_pressed = FALSE;
3385 if (menu->lower_arrow_visible && !menu->tearoff_active)
3387 if (touchscreen_mode)
3389 if (enter && menu->lower_arrow_prelight)
3391 if (menu->timeout_id == 0)
3393 /* Deselect the active item so that
3394 * any submenus are popped down
3396 gtk_menu_shell_deselect (menu_shell);
3398 gtk_menu_remove_scroll_timeout (menu);
3399 menu->scroll_step = MENU_SCROLL_STEP2; /* always fast */
3403 /* Only do stuff on click. */
3404 gtk_menu_start_scrolling (menu);
3405 arrow_pressed = TRUE;
3410 arrow_pressed = TRUE;
3415 gtk_menu_stop_scrolling (menu);
3418 else /* !touchscreen_mode */
3420 scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
3422 if (enter && in_arrow &&
3423 (!menu->lower_arrow_prelight ||
3424 menu->scroll_fast != scroll_fast))
3426 menu->lower_arrow_prelight = TRUE;
3427 menu->scroll_fast = scroll_fast;
3429 /* Deselect the active item so that
3430 * any submenus are popped down
3432 gtk_menu_shell_deselect (menu_shell);
3434 gtk_menu_remove_scroll_timeout (menu);
3435 menu->scroll_step = scroll_fast ?
3436 MENU_SCROLL_STEP2 : MENU_SCROLL_STEP1;
3439 gdk_threads_add_timeout (scroll_fast ?
3440 MENU_SCROLL_TIMEOUT2 :
3441 MENU_SCROLL_TIMEOUT1,
3442 gtk_menu_scroll_timeout, menu);
3444 else if (!enter && !in_arrow && menu->lower_arrow_prelight)
3446 gtk_menu_stop_scrolling (menu);
3451 /* gtk_menu_start_scrolling() might have hit the bottom of the
3452 * menu, so check if the button isn't insensitive before
3453 * changing it to something else.
3455 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3457 GtkStateType arrow_state = GTK_STATE_NORMAL;
3460 arrow_state = GTK_STATE_ACTIVE;
3461 else if (menu->lower_arrow_prelight)
3462 arrow_state = GTK_STATE_PRELIGHT;
3464 if (arrow_state != priv->lower_arrow_state)
3466 priv->lower_arrow_state = arrow_state;
3468 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3476 gtk_menu_enter_notify (GtkWidget *widget,
3477 GdkEventCrossing *event)
3479 GtkWidget *menu_item;
3480 gboolean touchscreen_mode;
3482 g_object_get (gtk_widget_get_settings (widget),
3483 "gtk-touchscreen-mode", &touchscreen_mode,
3486 menu_item = gtk_get_event_widget ((GdkEvent*) event);
3487 if (GTK_IS_MENU (widget))
3489 GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
3491 if (!menu_shell->ignore_enter)
3492 gtk_menu_handle_scrolling (GTK_MENU (widget),
3493 event->x_root, event->y_root, TRUE, TRUE);
3496 if (!touchscreen_mode && GTK_IS_MENU_ITEM (menu_item))
3498 GtkWidget *menu = menu_item->parent;
3500 if (GTK_IS_MENU (menu))
3502 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (menu));
3503 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
3505 if (priv->seen_item_enter)
3507 /* This is the second enter we see for an item
3508 * on this menu. This means a release should always
3511 menu_shell->activate_time = 0;
3513 else if ((event->detail != GDK_NOTIFY_NONLINEAR &&
3514 event->detail != GDK_NOTIFY_NONLINEAR_VIRTUAL))
3516 if (definitely_within_item (menu_item, event->x, event->y))
3518 /* This is an actual user-enter (ie. not a pop-under)
3519 * In this case, the user must either have entered
3520 * sufficiently far enough into the item, or he must move
3521 * far enough away from the enter point. (see
3522 * gtk_menu_motion_notify())
3524 menu_shell->activate_time = 0;
3528 priv->seen_item_enter = TRUE;
3532 /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
3533 * will not correspond to the event widget's parent. Check to see
3534 * if we are in the parent's navigation region.
3536 if (GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (menu_item->parent) &&
3537 gtk_menu_navigating_submenu (GTK_MENU (menu_item->parent),
3538 event->x_root, event->y_root))
3541 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (widget, event);
3545 gtk_menu_leave_notify (GtkWidget *widget,
3546 GdkEventCrossing *event)
3548 GtkMenuShell *menu_shell;
3550 GtkMenuItem *menu_item;
3551 GtkWidget *event_widget;
3553 menu = GTK_MENU (widget);
3554 menu_shell = GTK_MENU_SHELL (widget);
3556 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
3559 gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
3561 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3563 if (!GTK_IS_MENU_ITEM (event_widget))
3566 menu_item = GTK_MENU_ITEM (event_widget);
3568 /* Here we check to see if we're leaving an active menu item with a submenu,
3569 * in which case we enter submenu navigation mode.
3571 if (menu_shell->active_menu_item != NULL
3572 && menu_item->submenu != NULL
3573 && menu_item->submenu_placement == GTK_LEFT_RIGHT)
3575 if (GTK_MENU_SHELL (menu_item->submenu)->active)
3577 gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
3580 else if (menu_item == GTK_MENU_ITEM (menu_shell->active_menu_item))
3582 /* We are leaving an active menu item with nonactive submenu.
3583 * Deselect it so we don't surprise the user with by popping
3584 * up a submenu _after_ he left the item.
3586 gtk_menu_shell_deselect (menu_shell);
3591 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->leave_notify_event (widget, event);
3595 gtk_menu_stop_navigating_submenu (GtkMenu *menu)
3597 if (menu->navigation_region)
3599 gdk_region_destroy (menu->navigation_region);
3600 menu->navigation_region = NULL;
3602 if (menu->navigation_timeout)
3604 g_source_remove (menu->navigation_timeout);
3605 menu->navigation_timeout = 0;
3609 /* When the timeout is elapsed, the navigation region is destroyed
3610 * and the menuitem under the pointer (if any) is selected.
3613 gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
3615 GtkMenu *menu = user_data;
3616 GdkWindow *child_window;
3618 gtk_menu_stop_navigating_submenu (menu);
3620 if (GTK_WIDGET_REALIZED (menu))
3622 child_window = gdk_window_get_pointer (menu->bin_window, NULL, NULL, NULL);
3626 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
3628 send_event->crossing.window = g_object_ref (child_window);
3629 send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
3630 send_event->crossing.send_event = TRUE;
3632 GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
3634 gdk_event_free (send_event);
3642 gtk_menu_navigating_submenu (GtkMenu *menu,
3646 if (menu->navigation_region)
3648 if (gdk_region_point_in (menu->navigation_region, event_x, event_y))
3652 gtk_menu_stop_navigating_submenu (menu);
3659 #undef DRAW_STAY_UP_TRIANGLE
3661 #ifdef DRAW_STAY_UP_TRIANGLE
3664 draw_stay_up_triangle (GdkWindow *window,
3667 /* Draw ugly color all over the stay-up triangle */
3668 GdkColor ugly_color = { 0, 50000, 10000, 10000 };
3669 GdkGCValues gc_values;
3671 GdkRectangle clipbox;
3673 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
3674 ugly_gc = gdk_gc_new_with_values (window, &gc_values, 0 | GDK_GC_SUBWINDOW);
3675 gdk_gc_set_rgb_fg_color (ugly_gc, &ugly_color);
3676 gdk_gc_set_clip_region (ugly_gc, region);
3678 gdk_region_get_clipbox (region, &clipbox);
3680 gdk_draw_rectangle (window,
3683 clipbox.x, clipbox.y,
3684 clipbox.width, clipbox.height);
3686 g_object_unref (ugly_gc);
3691 flip_region (GdkRegion *region,
3696 GdkRectangle *rectangles;
3697 GdkRectangle clipbox;
3698 GdkRegion *new_region;
3701 new_region = gdk_region_new ();
3703 gdk_region_get_rectangles (region, &rectangles, &n_rectangles);
3704 gdk_region_get_clipbox (region, &clipbox);
3706 for (i = 0; i < n_rectangles; ++i)
3708 GdkRectangle rect = rectangles[i];
3711 rect.y -= 2 * (rect.y - clipbox.y) + rect.height;
3714 rect.x -= 2 * (rect.x - clipbox.x) + rect.width;
3716 gdk_region_union_with_rect (new_region, &rect);
3719 g_free (rectangles);
3725 gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
3726 GtkMenuItem *menu_item,
3727 GdkEventCrossing *event)
3729 gint submenu_left = 0;
3730 gint submenu_right = 0;
3731 gint submenu_top = 0;
3732 gint submenu_bottom = 0;
3736 GtkWidget *event_widget;
3738 g_return_if_fail (menu_item->submenu != NULL);
3739 g_return_if_fail (event != NULL);
3741 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3743 gdk_window_get_origin (menu_item->submenu->window, &submenu_left, &submenu_top);
3744 gdk_drawable_get_size (menu_item->submenu->window, &width, &height);
3746 submenu_right = submenu_left + width;
3747 submenu_bottom = submenu_top + height;
3749 gdk_drawable_get_size (event_widget->window, &width, &height);
3751 if (event->x >= 0 && event->x < width)
3754 gboolean flip_y = FALSE;
3755 gboolean flip_x = FALSE;
3757 gtk_menu_stop_navigating_submenu (menu);
3759 if (menu_item->submenu_direction == GTK_DIRECTION_RIGHT)
3762 point[0].x = event->x_root;
3763 point[1].x = submenu_left;
3768 point[0].x = event->x_root + 1;
3769 point[1].x = 2 * (event->x_root + 1) - submenu_right;
3777 point[0].y = event->y_root + 1;
3778 point[1].y = 2 * (event->y_root + 1) - submenu_top + NAVIGATION_REGION_OVERSHOOT;
3780 if (point[0].y >= point[1].y - NAVIGATION_REGION_OVERSHOOT)
3788 point[0].y = event->y_root;
3789 point[1].y = submenu_bottom + NAVIGATION_REGION_OVERSHOOT;
3791 if (point[0].y >= submenu_bottom)
3795 point[2].x = point[1].x;
3796 point[2].y = point[0].y;
3798 menu->navigation_region = gdk_region_polygon (point, 3, GDK_WINDING_RULE);
3800 if (flip_x || flip_y)
3802 GdkRegion *new_region = flip_region (menu->navigation_region, flip_x, flip_y);
3803 gdk_region_destroy (menu->navigation_region);
3804 menu->navigation_region = new_region;
3807 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3808 "gtk-menu-popdown-delay", &popdown_delay,
3811 menu->navigation_timeout = gdk_threads_add_timeout (popdown_delay,
3812 gtk_menu_stop_navigating_submenu_cb,
3815 #ifdef DRAW_STAY_UP_TRIANGLE
3816 draw_stay_up_triangle (gdk_get_default_root_window(),
3817 menu->navigation_region);
3823 gtk_menu_deactivate (GtkMenuShell *menu_shell)
3827 g_return_if_fail (GTK_IS_MENU (menu_shell));
3829 parent = menu_shell->parent_menu_shell;
3831 menu_shell->activate_time = 0;
3832 gtk_menu_popdown (GTK_MENU (menu_shell));
3835 gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
3839 gtk_menu_position (GtkMenu *menu)
3842 GtkRequisition requisition;
3843 GtkMenuPrivate *private;
3848 GdkScreen *pointer_screen;
3849 GdkRectangle monitor;
3851 g_return_if_fail (GTK_IS_MENU (menu));
3853 widget = GTK_WIDGET (menu);
3855 screen = gtk_widget_get_screen (widget);
3856 gdk_display_get_pointer (gdk_screen_get_display (screen),
3857 &pointer_screen, &x, &y, NULL);
3859 /* We need the requisition to figure out the right place to
3860 * popup the menu. In fact, we always need to ask here, since
3861 * if a size_request was queued while we weren't popped up,
3862 * the requisition won't have been recomputed yet.
3864 gtk_widget_size_request (widget, &requisition);
3866 if (pointer_screen != screen)
3868 /* Pointer is on a different screen; roughly center the
3869 * menu on the screen. If someone was using multiscreen
3870 * + Xinerama together they'd probably want something
3871 * fancier; but that is likely to be vanishingly rare.
3873 x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
3874 y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
3877 private = gtk_menu_get_private (menu);
3878 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3880 private->initially_pushed_in = FALSE;
3882 /* Set the type hint here to allow custom position functions to set a different hint */
3883 if (!GTK_WIDGET_VISIBLE (menu->toplevel))
3884 gtk_window_set_type_hint (GTK_WINDOW (menu->toplevel), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
3886 if (menu->position_func)
3888 (* menu->position_func) (menu, &x, &y, &private->initially_pushed_in,
3889 menu->position_func_data);
3890 if (private->monitor_num < 0)
3891 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3893 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3897 gint space_left, space_right, space_above, space_below;
3900 gint xthickness = widget->style->xthickness;
3901 gint ythickness = widget->style->ythickness;
3902 gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
3904 /* The placement of popup menus horizontally works like this (with
3905 * RTL in parentheses)
3907 * - If there is enough room to the right (left) of the mouse cursor,
3908 * position the menu there.
3910 * - Otherwise, if if there is enough room to the left (right) of the
3911 * mouse cursor, position the menu there.
3913 * - Otherwise if the menu is smaller than the monitor, position it
3914 * on the side of the mouse cursor that has the most space available
3916 * - Otherwise (if there is simply not enough room for the menu on the
3917 * monitor), position it as far left (right) as possible.
3919 * Positioning in the vertical direction is similar: first try below
3920 * mouse cursor, then above.
3922 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3924 space_left = x - monitor.x;
3925 space_right = monitor.x + monitor.width - x - 1;
3926 space_above = y - monitor.y;
3927 space_below = monitor.y + monitor.height - y - 1;
3929 /* position horizontally */
3931 /* the amount of space we need to position the menu. Note the
3932 * menu is offset "xthickness" pixels
3934 needed_width = requisition.width - xthickness;
3936 if (needed_width <= space_left ||
3937 needed_width <= space_right)
3939 if ((rtl && needed_width <= space_left) ||
3940 (!rtl && needed_width > space_right))
3943 x = x + xthickness - requisition.width + 1;
3947 /* position right */
3951 /* x is clamped on-screen further down */
3953 else if (requisition.width <= monitor.width)
3955 /* the menu is too big to fit on either side of the mouse
3956 * cursor, but smaller than the monitor. Position it on
3957 * the side that has the most space
3959 if (space_left > space_right)
3967 x = monitor.x + monitor.width - requisition.width;
3970 else /* menu is simply too big for the monitor */
3975 x = monitor.x + monitor.width - requisition.width;
3984 /* Position vertically. The algorithm is the same as above, but
3985 * simpler because we don't have to take RTL into account.
3987 needed_height = requisition.height - ythickness;
3989 if (needed_height <= space_above ||
3990 needed_height <= space_below)
3992 if (needed_height <= space_below)
3995 y = y + ythickness - requisition.height + 1;
3997 y = CLAMP (y, monitor.y,
3998 monitor.y + monitor.height - requisition.height);
4000 else if (needed_height > space_below && needed_height > space_above)
4002 if (space_below >= space_above)
4003 y = monitor.y + monitor.height - requisition.height;
4015 if (private->initially_pushed_in)
4017 menu_height = GTK_WIDGET (menu)->requisition.height;
4019 if (y + menu_height > monitor.y + monitor.height)
4021 scroll_offset -= y + menu_height - (monitor.y + monitor.height);
4022 y = (monitor.y + monitor.height) - menu_height;
4027 scroll_offset += monitor.y - y;
4032 /* FIXME: should this be done in the various position_funcs ? */
4033 x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
4035 if (GTK_MENU_SHELL (menu)->active)
4037 private->have_position = TRUE;
4042 if (y + requisition.height > monitor.y + monitor.height)
4043 requisition.height = (monitor.y + monitor.height) - y;
4047 scroll_offset += monitor.y - y;
4048 requisition.height -= monitor.y - y;
4052 if (scroll_offset > 0)
4054 GtkBorder arrow_border;
4056 get_arrows_border (menu, &arrow_border);
4057 scroll_offset += arrow_border.top;
4060 gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window),
4063 if (!GTK_MENU_SHELL (menu)->active)
4065 gtk_window_resize (GTK_WINDOW (menu->tearoff_window),
4066 requisition.width, requisition.height);
4069 menu->scroll_offset = scroll_offset;
4073 gtk_menu_remove_scroll_timeout (GtkMenu *menu)
4075 if (menu->timeout_id)
4077 g_source_remove (menu->timeout_id);
4078 menu->timeout_id = 0;
4083 gtk_menu_stop_scrolling (GtkMenu *menu)
4085 gboolean touchscreen_mode;
4087 gtk_menu_remove_scroll_timeout (menu);
4089 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
4090 "gtk-touchscreen-mode", &touchscreen_mode,
4093 if (!touchscreen_mode)
4095 menu->upper_arrow_prelight = FALSE;
4096 menu->lower_arrow_prelight = FALSE;
4101 gtk_menu_scroll_to (GtkMenu *menu,
4106 gint view_width, view_height;
4109 guint vertical_padding;
4110 guint horizontal_padding;
4111 gboolean double_arrows;
4112 GtkBorder arrow_border;
4114 widget = GTK_WIDGET (menu);
4116 if (menu->tearoff_active &&
4117 menu->tearoff_adjustment &&
4118 (menu->tearoff_adjustment->value != offset))
4120 menu->tearoff_adjustment->value =
4122 0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
4123 gtk_adjustment_value_changed (menu->tearoff_adjustment);
4126 /* Move/resize the viewport according to arrows: */
4127 view_width = widget->allocation.width;
4128 view_height = widget->allocation.height;
4130 gtk_widget_style_get (GTK_WIDGET (menu),
4131 "vertical-padding", &vertical_padding,
4132 "horizontal-padding", &horizontal_padding,
4135 double_arrows = get_double_arrows (menu);
4137 border_width = GTK_CONTAINER (menu)->border_width;
4138 view_width -= (border_width + widget->style->xthickness + horizontal_padding) * 2;
4139 view_height -= (border_width + widget->style->ythickness + vertical_padding) * 2;
4140 menu_height = widget->requisition.height -
4141 (border_width + widget->style->ythickness + vertical_padding) * 2;
4143 x = border_width + widget->style->xthickness + horizontal_padding;
4144 y = border_width + widget->style->ythickness + vertical_padding;
4146 if (double_arrows && !menu->tearoff_active)
4148 if (view_height < menu_height ||
4149 (offset > 0 && menu->scroll_offset > 0) ||
4150 (offset < 0 && menu->scroll_offset < 0))
4152 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4153 GtkStateType upper_arrow_previous_state = priv->upper_arrow_state;
4154 GtkStateType lower_arrow_previous_state = priv->lower_arrow_state;
4156 if (!menu->upper_arrow_visible || !menu->lower_arrow_visible)
4157 gtk_widget_queue_draw (GTK_WIDGET (menu));
4159 menu->upper_arrow_visible = menu->lower_arrow_visible = TRUE;
4161 get_arrows_border (menu, &arrow_border);
4162 y += arrow_border.top;
4163 view_height -= arrow_border.top;
4164 view_height -= arrow_border.bottom;
4167 priv->upper_arrow_state = GTK_STATE_INSENSITIVE;
4168 else if (priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4169 priv->upper_arrow_state = menu->upper_arrow_prelight ?
4170 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4172 if (offset >= menu_height - view_height)
4173 priv->lower_arrow_state = GTK_STATE_INSENSITIVE;
4174 else if (priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4175 priv->lower_arrow_state = menu->lower_arrow_prelight ?
4176 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4178 if ((priv->upper_arrow_state != upper_arrow_previous_state) ||
4179 (priv->lower_arrow_state != lower_arrow_previous_state))
4180 gtk_widget_queue_draw (GTK_WIDGET (menu));
4182 if (upper_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4183 priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4185 /* At the upper border, possibly remove timeout */
4186 if (menu->scroll_step < 0)
4188 gtk_menu_stop_scrolling (menu);
4189 gtk_widget_queue_draw (GTK_WIDGET (menu));
4193 if (lower_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4194 priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4196 /* At the lower border, possibly remove timeout */
4197 if (menu->scroll_step > 0)
4199 gtk_menu_stop_scrolling (menu);
4200 gtk_widget_queue_draw (GTK_WIDGET (menu));
4204 else if (menu->upper_arrow_visible || menu->lower_arrow_visible)
4208 menu->upper_arrow_visible = menu->lower_arrow_visible = FALSE;
4209 menu->upper_arrow_prelight = menu->lower_arrow_prelight = FALSE;
4211 gtk_menu_stop_scrolling (menu);
4212 gtk_widget_queue_draw (GTK_WIDGET (menu));
4215 else if (!menu->tearoff_active)
4217 gboolean last_visible;
4219 last_visible = menu->upper_arrow_visible;
4220 menu->upper_arrow_visible = offset > 0;
4222 /* upper_arrow_visible may have changed, so requery the border */
4223 get_arrows_border (menu, &arrow_border);
4224 view_height -= arrow_border.top;
4226 if ((last_visible != menu->upper_arrow_visible) &&
4227 !menu->upper_arrow_visible)
4229 menu->upper_arrow_prelight = FALSE;
4231 /* If we hid the upper arrow, possibly remove timeout */
4232 if (menu->scroll_step < 0)
4234 gtk_menu_stop_scrolling (menu);
4235 gtk_widget_queue_draw (GTK_WIDGET (menu));
4239 last_visible = menu->lower_arrow_visible;
4240 menu->lower_arrow_visible = offset < menu_height - view_height;
4242 /* lower_arrow_visible may have changed, so requery the border */
4243 get_arrows_border (menu, &arrow_border);
4244 view_height -= arrow_border.bottom;
4246 if ((last_visible != menu->lower_arrow_visible) &&
4247 !menu->lower_arrow_visible)
4249 menu->lower_arrow_prelight = FALSE;
4251 /* If we hid the lower arrow, possibly remove timeout */
4252 if (menu->scroll_step > 0)
4254 gtk_menu_stop_scrolling (menu);
4255 gtk_widget_queue_draw (GTK_WIDGET (menu));
4259 y += arrow_border.top;
4262 /* Scroll the menu: */
4263 if (GTK_WIDGET_REALIZED (menu))
4264 gdk_window_move (menu->bin_window, 0, -offset);
4266 if (GTK_WIDGET_REALIZED (menu))
4267 gdk_window_move_resize (menu->view_window,
4273 menu->scroll_offset = offset;
4277 compute_child_offset (GtkMenu *menu,
4278 GtkWidget *menu_item,
4281 gboolean *is_last_child)
4283 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4284 gint item_top_attach;
4285 gint item_bottom_attach;
4286 gint child_offset = 0;
4289 get_effective_child_attach (menu_item, NULL, NULL,
4290 &item_top_attach, &item_bottom_attach);
4292 /* there is a possibility that we get called before _size_request, so
4293 * check the height table for safety.
4295 if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
4298 /* when we have a row with only invisible children, it's height will
4299 * be zero, so there's no need to check WIDGET_VISIBLE here
4301 for (i = 0; i < item_top_attach; i++)
4302 child_offset += priv->heights[i];
4305 *is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
4307 *offset = child_offset;
4309 *height = priv->heights[item_top_attach];
4315 gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
4316 GtkWidget *menu_item)
4319 gint child_offset, child_height;
4323 gboolean last_child = 0;
4325 menu = GTK_MENU (menu_shell);
4327 /* We need to check if the selected item fully visible.
4328 * If not we need to scroll the menu so that it becomes fully
4332 if (compute_child_offset (menu, menu_item,
4333 &child_offset, &child_height, &last_child))
4335 guint vertical_padding;
4336 gboolean double_arrows;
4338 y = menu->scroll_offset;
4339 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
4341 gtk_widget_style_get (GTK_WIDGET (menu),
4342 "vertical-padding", &vertical_padding,
4345 double_arrows = get_double_arrows (menu);
4347 height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness + 2*vertical_padding;
4349 if (child_offset < y)
4351 /* Ignore the enter event we might get if the pointer is on the menu
4353 menu_shell->ignore_enter = TRUE;
4354 gtk_menu_scroll_to (menu, child_offset);
4358 GtkBorder arrow_border;
4362 get_arrows_border (menu, &arrow_border);
4363 if (!menu->tearoff_active)
4364 arrow_height = arrow_border.top + arrow_border.bottom;
4366 if (child_offset + child_height > y + height - arrow_height)
4369 if ((!last_child && !menu->tearoff_active) || double_arrows)
4370 arrow_height += arrow_border.bottom;
4372 y = child_offset + child_height - height + arrow_height;
4373 if (((y > 0) && !menu->tearoff_active) || double_arrows)
4375 /* Need upper arrow */
4376 arrow_height += arrow_border.top;
4377 y = child_offset + child_height - height + arrow_height;
4379 /* Ignore the enter event we might get if the pointer is on the menu
4381 menu_shell->ignore_enter = TRUE;
4382 gtk_menu_scroll_to (menu, y);
4390 gtk_menu_select_item (GtkMenuShell *menu_shell,
4391 GtkWidget *menu_item)
4393 GtkMenu *menu = GTK_MENU (menu_shell);
4395 if (GTK_WIDGET_REALIZED (GTK_WIDGET (menu)))
4396 gtk_menu_scroll_item_visible (menu_shell, menu_item);
4398 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
4402 /* Reparent the menu, taking care of the refcounting
4404 * If unrealize is true we force a unrealize while reparenting the parent.
4405 * This can help eliminate flicker in some cases.
4407 * What happens is that when the menu is unrealized and then re-realized,
4408 * the allocations are as follows:
4410 * parent - 1x1 at (0,0)
4411 * child1 - 100x20 at (0,0)
4412 * child2 - 100x20 at (0,20)
4413 * child3 - 100x20 at (0,40)
4415 * That is, the parent is small but the children are full sized. Then,
4416 * when the queued_resize gets processed, the parent gets resized to
4419 * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
4420 * contains the following logic:
4422 * - if a move or resize operation on a window would change the clip
4423 * region on the children, then before the window is resized
4424 * the background for children is temporarily set to None, the
4425 * move/resize done, and the background for the children restored.
4427 * So, at the point where the parent is resized to final size, the
4428 * background for the children is temporarily None, and thus they
4429 * are not cleared to the background color and the previous background
4430 * (the image of the menu) is left in place.
4433 gtk_menu_reparent (GtkMenu *menu,
4434 GtkWidget *new_parent,
4437 GtkObject *object = GTK_OBJECT (menu);
4438 GtkWidget *widget = GTK_WIDGET (menu);
4439 gboolean was_floating = g_object_is_floating (object);
4441 g_object_ref_sink (object);
4445 g_object_ref (object);
4446 gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
4447 gtk_container_add (GTK_CONTAINER (new_parent), widget);
4448 g_object_unref (object);
4451 gtk_widget_reparent (GTK_WIDGET (menu), new_parent);
4454 g_object_force_floating (G_OBJECT (object));
4456 g_object_unref (object);
4460 gtk_menu_show_all (GtkWidget *widget)
4462 /* Show children, but not self. */
4463 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
4468 gtk_menu_hide_all (GtkWidget *widget)
4470 /* Hide children, but not self. */
4471 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
4475 * gtk_menu_set_screen:
4476 * @menu: a #GtkMenu.
4477 * @screen: a #GdkScreen, or %NULL if the screen should be
4478 * determined by the widget the menu is attached to.
4480 * Sets the #GdkScreen on which the menu will be displayed.
4485 gtk_menu_set_screen (GtkMenu *menu,
4488 g_return_if_fail (GTK_IS_MENU (menu));
4489 g_return_if_fail (!screen || GDK_IS_SCREEN (screen));
4491 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-screen"), screen);
4495 menu_change_screen (menu, screen);
4499 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
4501 attach_widget_screen_changed (attach_widget, NULL, menu);
4507 * @menu: a #GtkMenu.
4508 * @child: a #GtkMenuItem.
4509 * @left_attach: The column number to attach the left side of the item to.
4510 * @right_attach: The column number to attach the right side of the item to.
4511 * @top_attach: The row number to attach the top of the item to.
4512 * @bottom_attach: The row number to attach the bottom of the item to.
4514 * Adds a new #GtkMenuItem to a (table) menu. The number of 'cells' that
4515 * an item will occupy is specified by @left_attach, @right_attach,
4516 * @top_attach and @bottom_attach. These each represent the leftmost,
4517 * rightmost, uppermost and lower column and row numbers of the table.
4518 * (Columns and rows are indexed from zero).
4520 * Note that this function is not related to gtk_menu_detach().
4525 gtk_menu_attach (GtkMenu *menu,
4530 guint bottom_attach)
4532 GtkMenuShell *menu_shell;
4534 g_return_if_fail (GTK_IS_MENU (menu));
4535 g_return_if_fail (GTK_IS_MENU_ITEM (child));
4536 g_return_if_fail (child->parent == NULL ||
4537 child->parent == GTK_WIDGET (menu));
4538 g_return_if_fail (left_attach < right_attach);
4539 g_return_if_fail (top_attach < bottom_attach);
4541 menu_shell = GTK_MENU_SHELL (menu);
4545 AttachInfo *ai = get_attach_info (child);
4547 ai->left_attach = left_attach;
4548 ai->right_attach = right_attach;
4549 ai->top_attach = top_attach;
4550 ai->bottom_attach = bottom_attach;
4552 menu_shell->children = g_list_append (menu_shell->children, child);
4554 gtk_widget_set_parent (child, GTK_WIDGET (menu));
4556 menu_queue_resize (menu);
4560 gtk_container_child_set (GTK_CONTAINER (child->parent), child,
4561 "left-attach", left_attach,
4562 "right-attach", right_attach,
4563 "top-attach", top_attach,
4564 "bottom-attach", bottom_attach,
4570 gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
4574 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
4575 "gtk-menu-popup-delay", &popup_delay,
4582 find_child_containing (GtkMenuShell *menu_shell,
4590 /* find a child which includes the area given by
4591 * left, right, top, bottom.
4594 for (list = menu_shell->children; list; list = list->next)
4598 if (!_gtk_menu_item_is_selectable (list->data))
4601 get_effective_child_attach (list->data, &l, &r, &t, &b);
4603 if (l <= left && right <= r
4604 && t <= top && bottom <= b)
4605 return GTK_WIDGET (list->data);
4612 gtk_menu_move_current (GtkMenuShell *menu_shell,
4613 GtkMenuDirectionType direction)
4615 GtkMenu *menu = GTK_MENU (menu_shell);
4618 GtkWidget *match = NULL;
4620 if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
4624 case GTK_MENU_DIR_CHILD:
4625 direction = GTK_MENU_DIR_PARENT;
4627 case GTK_MENU_DIR_PARENT:
4628 direction = GTK_MENU_DIR_CHILD;
4634 /* use special table menu key bindings */
4635 if (menu_shell->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
4637 get_effective_child_attach (menu_shell->active_menu_item, &l, &r, &t, &b);
4639 if (direction == GTK_MENU_DIR_NEXT)
4641 for (i = b; i < gtk_menu_get_n_rows (menu); i++)
4643 match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
4651 for (i = 0; i < t; i++)
4653 match = find_child_containing (menu_shell,
4654 l, l + 1, i, i + 1);
4660 else if (direction == GTK_MENU_DIR_PREV)
4662 for (i = t; i > 0; i--)
4664 match = find_child_containing (menu_shell, l, l + 1, i - 1, i);
4672 for (i = gtk_menu_get_n_rows (menu); i > b; i--)
4674 match = find_child_containing (menu_shell,
4675 l, l + 1, i - 1, i);
4681 else if (direction == GTK_MENU_DIR_PARENT)
4683 /* we go one left if possible */
4685 match = find_child_containing (menu_shell, l - 1, l, t, t + 1);
4689 GtkWidget *parent = menu_shell->parent_menu_shell;
4692 || g_list_length (GTK_MENU_SHELL (parent)->children) <= 1)
4693 match = menu_shell->active_menu_item;
4696 else if (direction == GTK_MENU_DIR_CHILD)
4698 /* we go one right if possible */
4699 if (r < gtk_menu_get_n_columns (menu))
4700 match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
4704 GtkWidget *parent = menu_shell->parent_menu_shell;
4706 if (! GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu &&
4708 g_list_length (GTK_MENU_SHELL (parent)->children) <= 1))
4709 match = menu_shell->active_menu_item;
4715 gtk_menu_shell_select_item (menu_shell, match);
4720 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
4724 get_visible_size (GtkMenu *menu)
4726 GtkWidget *widget = GTK_WIDGET (menu);
4727 GtkContainer *container = GTK_CONTAINER (menu);
4729 gint menu_height = (widget->allocation.height
4730 - 2 * (container->border_width
4731 + widget->style->ythickness));
4733 if (!menu->tearoff_active)
4735 GtkBorder arrow_border;
4737 get_arrows_border (menu, &arrow_border);
4738 menu_height -= arrow_border.top;
4739 menu_height -= arrow_border.bottom;
4745 /* Find the sensitive on-screen child containing @y, or if none,
4746 * the nearest selectable onscreen child. (%NULL if none)
4749 child_at (GtkMenu *menu,
4752 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4753 GtkWidget *child = NULL;
4754 gint child_offset = 0;
4757 gint lower, upper; /* Onscreen bounds */
4759 menu_height = get_visible_size (menu);
4760 lower = menu->scroll_offset;
4761 upper = menu->scroll_offset + menu_height;
4763 for (children = menu_shell->children; children; children = children->next)
4765 if (GTK_WIDGET_VISIBLE (children->data))
4767 GtkRequisition child_requisition;
4769 gtk_widget_size_request (children->data, &child_requisition);
4771 if (_gtk_menu_item_is_selectable (children->data) &&
4772 child_offset >= lower &&
4773 child_offset + child_requisition.height <= upper)
4775 child = children->data;
4777 if (child_offset + child_requisition.height > y &&
4778 !GTK_IS_TEAROFF_MENU_ITEM (child))
4782 child_offset += child_requisition.height;
4790 get_menu_height (GtkMenu *menu)
4793 GtkWidget *widget = GTK_WIDGET (menu);
4795 height = widget->requisition.height;
4796 height -= (GTK_CONTAINER (widget)->border_width + widget->style->ythickness) * 2;
4798 if (!menu->tearoff_active)
4800 GtkBorder arrow_border;
4802 get_arrows_border (menu, &arrow_border);
4803 height -= arrow_border.top;
4804 height -= arrow_border.bottom;
4811 gtk_menu_real_move_scroll (GtkMenu *menu,
4814 gint page_size = get_visible_size (menu);
4815 gint end_position = get_menu_height (menu);
4816 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4820 case GTK_SCROLL_PAGE_UP:
4821 case GTK_SCROLL_PAGE_DOWN:
4825 gint child_offset = 0;
4826 gboolean old_upper_arrow_visible;
4829 if (type == GTK_SCROLL_PAGE_UP)
4834 if (menu_shell->active_menu_item)
4838 compute_child_offset (menu, menu_shell->active_menu_item,
4839 &child_offset, &child_height, NULL);
4840 child_offset += child_height / 2;
4843 menu_shell->ignore_enter = TRUE;
4844 old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4845 old_offset = menu->scroll_offset;
4847 new_offset = menu->scroll_offset + step;
4848 new_offset = CLAMP (new_offset, 0, end_position - page_size);
4850 gtk_menu_scroll_to (menu, new_offset);
4852 if (menu_shell->active_menu_item)
4854 GtkWidget *new_child;
4855 gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4856 GtkBorder arrow_border;
4858 get_arrows_border (menu, &arrow_border);
4860 if (menu->scroll_offset != old_offset)
4861 step = menu->scroll_offset - old_offset;
4863 step -= (new_upper_arrow_visible - old_upper_arrow_visible) * arrow_border.top;
4865 new_child = child_at (menu, child_offset + step);
4867 gtk_menu_shell_select_item (menu_shell, new_child);
4871 case GTK_SCROLL_START:
4872 /* Ignore the enter event we might get if the pointer is on the menu
4874 menu_shell->ignore_enter = TRUE;
4875 gtk_menu_scroll_to (menu, 0);
4876 gtk_menu_shell_select_first (menu_shell, TRUE);
4878 case GTK_SCROLL_END:
4879 /* Ignore the enter event we might get if the pointer is on the menu
4881 menu_shell->ignore_enter = TRUE;
4882 gtk_menu_scroll_to (menu, end_position - page_size);
4883 _gtk_menu_shell_select_last (menu_shell, TRUE);
4892 * gtk_menu_set_monitor:
4894 * @monitor_num: the number of the monitor on which the menu should
4897 * Informs GTK+ on which monitor a menu should be popped up.
4898 * See gdk_screen_get_monitor_geometry().
4900 * This function should be called from a #GtkMenuPositionFunc if the
4901 * menu should not appear on the same monitor as the pointer. This
4902 * information can't be reliably inferred from the coordinates returned
4903 * by a #GtkMenuPositionFunc, since, for very long menus, these coordinates
4904 * may extend beyond the monitor boundaries or even the screen boundaries.
4909 gtk_menu_set_monitor (GtkMenu *menu,
4912 GtkMenuPrivate *priv;
4913 g_return_if_fail (GTK_IS_MENU (menu));
4915 priv = gtk_menu_get_private (menu);
4917 priv->monitor_num = monitor_num;
4921 * gtk_menu_get_for_attach_widget:
4922 * @widget: a #GtkWidget
4924 * Returns a list of the menus which are attached to this widget.
4925 * This list is owned by GTK+ and must not be modified.
4927 * Return value: the list of menus attached to his widget.
4932 gtk_menu_get_for_attach_widget (GtkWidget *widget)
4936 g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
4938 list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
4943 gtk_menu_grab_notify (GtkWidget *widget,
4944 gboolean was_grabbed)
4946 GtkWidget *toplevel;
4947 GtkWindowGroup *group;
4950 toplevel = gtk_widget_get_toplevel (widget);
4951 group = gtk_window_get_group (GTK_WINDOW (toplevel));
4952 grab = _gtk_window_group_get_current_grab (group);
4956 if (GTK_MENU_SHELL (widget)->active && !GTK_IS_MENU_SHELL (grab))
4957 gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
4961 #define __GTK_MENU_C__
4962 #include "gtkaliasdef.c"