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)
905 GtkMenu *menu = GTK_MENU (object);
906 GtkMenuAttachData *data;
907 GtkMenuPrivate *priv;
909 gtk_menu_remove_scroll_timeout (menu);
911 data = g_object_get_data (G_OBJECT (object), attach_data_key);
913 gtk_menu_detach (menu);
915 gtk_menu_stop_navigating_submenu (menu);
917 if (menu->old_active_menu_item)
919 g_object_unref (menu->old_active_menu_item);
920 menu->old_active_menu_item = NULL;
923 /* Add back the reference count for being a child */
924 if (menu->needs_destruction_ref_count)
926 menu->needs_destruction_ref_count = FALSE;
927 g_object_ref (object);
930 if (menu->accel_group)
932 g_object_unref (menu->accel_group);
933 menu->accel_group = NULL;
937 gtk_widget_destroy (menu->toplevel);
939 if (menu->tearoff_window)
940 gtk_widget_destroy (menu->tearoff_window);
942 priv = gtk_menu_get_private (menu);
946 g_free (priv->heights);
947 priv->heights = NULL;
952 g_free (priv->title);
956 GTK_OBJECT_CLASS (gtk_menu_parent_class)->destroy (object);
960 gtk_menu_finalize (GObject *object)
962 GtkMenu *menu = GTK_MENU (object);
964 g_free (menu->accel_path);
966 G_OBJECT_CLASS (gtk_menu_parent_class)->finalize (object);
970 menu_change_screen (GtkMenu *menu,
971 GdkScreen *new_screen)
973 GtkMenuPrivate *private = gtk_menu_get_private (menu);
975 if (gtk_widget_has_screen (GTK_WIDGET (menu)))
977 if (new_screen == gtk_widget_get_screen (GTK_WIDGET (menu)))
983 gtk_window_set_screen (GTK_WINDOW (menu->tearoff_window), new_screen);
984 gtk_menu_position (menu);
987 gtk_window_set_screen (GTK_WINDOW (menu->toplevel), new_screen);
988 private->monitor_num = -1;
992 attach_widget_screen_changed (GtkWidget *attach_widget,
993 GdkScreen *previous_screen,
996 if (gtk_widget_has_screen (attach_widget) &&
997 !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
999 menu_change_screen (menu, gtk_widget_get_screen (attach_widget));
1004 gtk_menu_attach_to_widget (GtkMenu *menu,
1005 GtkWidget *attach_widget,
1006 GtkMenuDetachFunc detacher)
1008 GtkMenuAttachData *data;
1011 g_return_if_fail (GTK_IS_MENU (menu));
1012 g_return_if_fail (GTK_IS_WIDGET (attach_widget));
1014 /* keep this function in sync with gtk_widget_set_parent()
1017 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1020 g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
1021 g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
1025 g_object_ref_sink (menu);
1027 data = g_new (GtkMenuAttachData, 1);
1028 data->attach_widget = attach_widget;
1030 g_signal_connect (attach_widget, "screen_changed",
1031 G_CALLBACK (attach_widget_screen_changed), menu);
1032 attach_widget_screen_changed (attach_widget, NULL, menu);
1034 data->detacher = detacher;
1035 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
1036 list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
1037 if (!g_list_find (list, menu))
1039 list = g_list_prepend (list, menu);
1041 g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1043 if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL)
1044 gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL);
1046 /* we don't need to set the style here, since
1047 * we are a toplevel widget.
1050 /* Fallback title for menu comes from attach widget */
1051 gtk_menu_update_title (menu);
1055 gtk_menu_get_attach_widget (GtkMenu *menu)
1057 GtkMenuAttachData *data;
1059 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1061 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1063 return data->attach_widget;
1068 gtk_menu_detach (GtkMenu *menu)
1070 GtkMenuAttachData *data;
1073 g_return_if_fail (GTK_IS_MENU (menu));
1075 /* keep this function in sync with gtk_widget_unparent()
1077 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1080 g_warning ("gtk_menu_detach(): menu is not attached");
1083 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
1085 g_signal_handlers_disconnect_by_func (data->attach_widget,
1086 (gpointer) attach_widget_screen_changed,
1090 data->detacher (data->attach_widget, menu);
1091 list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
1092 list = g_list_remove (list, menu);
1094 g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list, (GtkDestroyNotify) g_list_free);
1096 g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
1098 if (GTK_WIDGET_REALIZED (menu))
1099 gtk_widget_unrealize (GTK_WIDGET (menu));
1103 /* Fallback title for menu comes from attach widget */
1104 gtk_menu_update_title (menu);
1106 g_object_unref (menu);
1110 gtk_menu_remove (GtkContainer *container,
1113 GtkMenu *menu = GTK_MENU (container);
1115 g_return_if_fail (GTK_IS_MENU_ITEM (widget));
1117 /* Clear out old_active_menu_item if it matches the item we are removing
1119 if (menu->old_active_menu_item == widget)
1121 g_object_unref (menu->old_active_menu_item);
1122 menu->old_active_menu_item = NULL;
1125 GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
1126 g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
1128 menu_queue_resize (menu);
1134 return g_object_new (GTK_TYPE_MENU, NULL);
1138 gtk_menu_real_insert (GtkMenuShell *menu_shell,
1142 GtkMenu *menu = GTK_MENU (menu_shell);
1143 AttachInfo *ai = get_attach_info (child);
1145 ai->left_attach = -1;
1146 ai->right_attach = -1;
1147 ai->top_attach = -1;
1148 ai->bottom_attach = -1;
1150 if (GTK_WIDGET_REALIZED (menu_shell))
1151 gtk_widget_set_parent_window (child, menu->bin_window);
1153 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
1155 menu_queue_resize (menu);
1159 gtk_menu_tearoff_bg_copy (GtkMenu *menu)
1164 widget = GTK_WIDGET (menu);
1170 GdkGCValues gc_values;
1172 menu->tearoff_active = FALSE;
1173 menu->saved_scroll_offset = menu->scroll_offset;
1175 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
1176 gc = gdk_gc_new_with_values (widget->window,
1177 &gc_values, GDK_GC_SUBWINDOW);
1179 gdk_drawable_get_size (menu->tearoff_window->window, &width, &height);
1181 pixmap = gdk_pixmap_new (menu->tearoff_window->window,
1186 gdk_draw_drawable (pixmap, gc,
1187 menu->tearoff_window->window,
1188 0, 0, 0, 0, -1, -1);
1189 g_object_unref (gc);
1191 gtk_widget_set_size_request (menu->tearoff_window,
1195 gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE);
1196 g_object_unref (pixmap);
1201 popup_grab_on_window (GdkWindow *window,
1202 guint32 activate_time,
1203 gboolean grab_keyboard)
1205 if ((gdk_pointer_grab (window, TRUE,
1206 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1207 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
1208 GDK_POINTER_MOTION_MASK,
1209 NULL, NULL, activate_time) == 0))
1211 if (!grab_keyboard ||
1212 gdk_keyboard_grab (window, TRUE,
1213 activate_time) == 0)
1217 gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
1228 * @menu: a #GtkMenu.
1229 * @parent_menu_shell: the menu shell containing the triggering menu item, or %NULL
1230 * @parent_menu_item: the menu item whose activation triggered the popup, or %NULL
1231 * @func: a user supplied function used to position the menu, or %NULL
1232 * @data: user supplied data to be passed to @func.
1233 * @button: the mouse button which was pressed to initiate the event.
1234 * @activate_time: the time at which the activation event occurred.
1236 * Displays a menu and makes it available for selection. Applications can use
1237 * this function to display context-sensitive menus, and will typically supply
1238 * %NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
1239 * parameters. The default menu positioning function will position the menu
1240 * at the current mouse cursor position.
1242 * The @button parameter should be the mouse button pressed to initiate
1243 * the menu popup. If the menu popup was initiated by something other than
1244 * a mouse button press, such as a mouse button release or a keypress,
1245 * @button should be 0.
1247 * The @activate_time parameter is used to conflict-resolve initiation of
1248 * concurrent requests for mouse/keyboard grab requests. To function
1249 * properly, this needs to be the time stamp of the user event (such as
1250 * a mouse click or key press) that caused the initiation of the popup.
1251 * Only if no such event is available, gtk_get_current_event_time() can
1255 gtk_menu_popup (GtkMenu *menu,
1256 GtkWidget *parent_menu_shell,
1257 GtkWidget *parent_menu_item,
1258 GtkMenuPositionFunc func,
1261 guint32 activate_time)
1264 GtkWidget *xgrab_shell;
1266 GdkEvent *current_event;
1267 GtkMenuShell *menu_shell;
1268 gboolean grab_keyboard;
1269 GtkMenuPrivate *priv;
1270 GtkWidget *parent_toplevel;
1272 g_return_if_fail (GTK_IS_MENU (menu));
1274 widget = GTK_WIDGET (menu);
1275 menu_shell = GTK_MENU_SHELL (menu);
1276 priv = gtk_menu_get_private (menu);
1278 menu_shell->parent_menu_shell = parent_menu_shell;
1280 priv->seen_item_enter = FALSE;
1282 /* Find the last viewable ancestor, and make an X grab on it
1284 parent = GTK_WIDGET (menu);
1288 gboolean viewable = TRUE;
1289 GtkWidget *tmp = parent;
1293 if (!GTK_WIDGET_MAPPED (tmp))
1302 xgrab_shell = parent;
1304 parent = GTK_MENU_SHELL (parent)->parent_menu_shell;
1307 /* We want to receive events generated when we map the menu; unfortunately,
1308 * since there is probably already an implicit grab in place from the
1309 * button that the user used to pop up the menu, we won't receive then --
1310 * in particular, the EnterNotify when the menu pops up under the pointer.
1312 * If we are grabbing on a parent menu shell, no problem; just grab on
1313 * that menu shell first before popping up the window with owner_events = TRUE.
1315 * When grabbing on the menu itself, things get more convuluted - we
1316 * we do an explicit grab on a specially created window with
1317 * owner_events = TRUE, which we override further down with a grab
1318 * on the menu. (We can't grab on the menu until it is mapped; we
1319 * probably could just leave the grab on the other window, with a
1320 * little reorganization of the code in gtkmenu*).
1322 grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
1323 gtk_window_set_accept_focus (GTK_WINDOW (menu->toplevel), grab_keyboard);
1325 if (xgrab_shell && xgrab_shell != widget)
1327 if (popup_grab_on_window (xgrab_shell->window, activate_time, grab_keyboard))
1328 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1332 GdkWindow *transfer_window;
1334 xgrab_shell = widget;
1335 transfer_window = menu_grab_transfer_window_get (menu);
1336 if (popup_grab_on_window (transfer_window, activate_time, grab_keyboard))
1337 GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
1340 if (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)
1342 /* We failed to make our pointer/keyboard grab. Rather than leaving the user
1343 * with a stuck up window, we just abort here. Presumably the user will
1346 menu_shell->parent_menu_shell = NULL;
1347 menu_grab_transfer_window_destroy (menu);
1351 menu_shell->active = TRUE;
1352 menu_shell->button = button;
1354 /* If we are popping up the menu from something other than, a button
1355 * press then, as a heuristic, we ignore enter events for the menu
1356 * until we get a MOTION_NOTIFY.
1359 current_event = gtk_get_current_event ();
1362 if ((current_event->type != GDK_BUTTON_PRESS) &&
1363 (current_event->type != GDK_ENTER_NOTIFY))
1364 menu_shell->ignore_enter = TRUE;
1366 gdk_event_free (current_event);
1369 menu_shell->ignore_enter = TRUE;
1373 gtk_menu_tearoff_bg_copy (menu);
1375 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1378 parent_toplevel = NULL;
1379 if (parent_menu_shell)
1380 parent_toplevel = gtk_widget_get_toplevel (parent_menu_shell);
1381 else if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1383 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
1385 parent_toplevel = gtk_widget_get_toplevel (attach_widget);
1388 /* Set transient for to get the right window group and parent relationship */
1389 if (GTK_IS_WINDOW (parent_toplevel))
1390 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel),
1391 GTK_WINDOW (parent_toplevel));
1393 menu->parent_menu_item = parent_menu_item;
1394 menu->position_func = func;
1395 menu->position_func_data = data;
1396 menu_shell->activate_time = activate_time;
1398 /* We need to show the menu here rather in the init function because
1399 * code expects to be able to tell if the menu is onscreen by
1400 * looking at the GTK_WIDGET_VISIBLE (menu)
1402 gtk_widget_show (GTK_WIDGET (menu));
1404 /* Position the menu, possibly changing the size request
1406 gtk_menu_position (menu);
1408 /* Compute the size of the toplevel and realize it so we
1409 * can scroll correctly.
1412 GtkRequisition tmp_request;
1413 GtkAllocation tmp_allocation = { 0, };
1415 gtk_widget_size_request (menu->toplevel, &tmp_request);
1417 tmp_allocation.width = tmp_request.width;
1418 tmp_allocation.height = tmp_request.height;
1420 gtk_widget_size_allocate (menu->toplevel, &tmp_allocation);
1422 gtk_widget_realize (GTK_WIDGET (menu));
1425 gtk_menu_scroll_to (menu, menu->scroll_offset);
1427 /* if no item is selected, select the first one */
1428 if (!menu_shell->active_menu_item)
1430 gboolean touchscreen_mode;
1432 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
1433 "gtk-touchscreen-mode", &touchscreen_mode,
1436 if (touchscreen_mode)
1437 gtk_menu_shell_select_first (menu_shell, TRUE);
1440 /* Once everything is set up correctly, map the toplevel window on
1443 gtk_widget_show (menu->toplevel);
1445 if (xgrab_shell == widget)
1446 popup_grab_on_window (widget->window, activate_time, grab_keyboard); /* Should always succeed */
1447 gtk_grab_add (GTK_WIDGET (menu));
1451 gtk_menu_popdown (GtkMenu *menu)
1453 GtkMenuPrivate *private;
1454 GtkMenuShell *menu_shell;
1456 g_return_if_fail (GTK_IS_MENU (menu));
1458 menu_shell = GTK_MENU_SHELL (menu);
1459 private = gtk_menu_get_private (menu);
1461 menu_shell->parent_menu_shell = NULL;
1462 menu_shell->active = FALSE;
1463 menu_shell->ignore_enter = FALSE;
1465 private->have_position = FALSE;
1467 gtk_menu_stop_scrolling (menu);
1469 gtk_menu_stop_navigating_submenu (menu);
1471 if (menu_shell->active_menu_item)
1473 if (menu->old_active_menu_item)
1474 g_object_unref (menu->old_active_menu_item);
1475 menu->old_active_menu_item = menu_shell->active_menu_item;
1476 g_object_ref (menu->old_active_menu_item);
1479 gtk_menu_shell_deselect (menu_shell);
1481 /* The X Grab, if present, will automatically be removed when we hide
1483 gtk_widget_hide (menu->toplevel);
1484 gtk_window_set_transient_for (GTK_WINDOW (menu->toplevel), NULL);
1488 gtk_widget_set_size_request (menu->tearoff_window, -1, -1);
1490 if (GTK_BIN (menu->toplevel)->child)
1492 gtk_menu_reparent (menu, menu->tearoff_hbox, TRUE);
1496 /* We popped up the menu from the tearoff, so we need to
1497 * release the grab - we aren't actually hiding the menu.
1499 if (menu_shell->have_xgrab)
1501 GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu));
1503 gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
1504 gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
1508 /* gtk_menu_popdown is called each time a menu item is selected from
1509 * a torn off menu. Only scroll back to the saved position if the
1510 * non-tearoff menu was popped down.
1512 if (!menu->tearoff_active)
1513 gtk_menu_scroll_to (menu, menu->saved_scroll_offset);
1514 menu->tearoff_active = TRUE;
1517 gtk_widget_hide (GTK_WIDGET (menu));
1519 menu_shell->have_xgrab = FALSE;
1520 gtk_grab_remove (GTK_WIDGET (menu));
1522 menu_grab_transfer_window_destroy (menu);
1526 gtk_menu_get_active (GtkMenu *menu)
1531 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1533 if (!menu->old_active_menu_item)
1536 children = GTK_MENU_SHELL (menu)->children;
1540 child = children->data;
1541 children = children->next;
1543 if (GTK_BIN (child)->child)
1548 menu->old_active_menu_item = child;
1549 if (menu->old_active_menu_item)
1550 g_object_ref (menu->old_active_menu_item);
1553 return menu->old_active_menu_item;
1557 gtk_menu_set_active (GtkMenu *menu,
1563 g_return_if_fail (GTK_IS_MENU (menu));
1565 tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
1568 child = tmp_list->data;
1569 if (GTK_BIN (child)->child)
1571 if (menu->old_active_menu_item)
1572 g_object_unref (menu->old_active_menu_item);
1573 menu->old_active_menu_item = child;
1574 g_object_ref (menu->old_active_menu_item);
1580 gtk_menu_set_accel_group (GtkMenu *menu,
1581 GtkAccelGroup *accel_group)
1583 g_return_if_fail (GTK_IS_MENU (menu));
1585 if (menu->accel_group != accel_group)
1587 if (menu->accel_group)
1588 g_object_unref (menu->accel_group);
1589 menu->accel_group = accel_group;
1590 if (menu->accel_group)
1591 g_object_ref (menu->accel_group);
1592 _gtk_menu_refresh_accel_paths (menu, TRUE);
1597 gtk_menu_get_accel_group (GtkMenu *menu)
1599 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1601 return menu->accel_group;
1605 gtk_menu_real_can_activate_accel (GtkWidget *widget,
1608 /* Menu items chain here to figure whether they can activate their
1609 * accelerators. Unlike ordinary widgets, menus allow accel
1610 * activation even if invisible since that's the usual case for
1611 * submenus/popup-menus. however, the state of the attach widget
1612 * affects the "activeness" of the menu.
1614 GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
1617 return gtk_widget_can_activate_accel (awidget, signal_id);
1619 return GTK_WIDGET_IS_SENSITIVE (widget);
1623 * gtk_menu_set_accel_path
1624 * @menu: a valid #GtkMenu
1625 * @accel_path: a valid accelerator path
1627 * Sets an accelerator path for this menu from which accelerator paths
1628 * for its immediate children, its menu items, can be constructed.
1629 * The main purpose of this function is to spare the programmer the
1630 * inconvenience of having to call gtk_menu_item_set_accel_path() on
1631 * each menu item that should support runtime user changable accelerators.
1632 * Instead, by just calling gtk_menu_set_accel_path() on their parent,
1633 * each menu item of this menu, that contains a label describing its purpose,
1634 * automatically gets an accel path assigned. For example, a menu containing
1635 * menu items "New" and "Exit", will, after
1636 * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
1637 * has been called, assign its items the accel paths:
1638 * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
1639 * Assigning accel paths to menu items then enables the user to change
1640 * their accelerators at runtime. More details about accelerator paths
1641 * and their default setups can be found at gtk_accel_map_add_entry().
1644 gtk_menu_set_accel_path (GtkMenu *menu,
1645 const gchar *accel_path)
1647 g_return_if_fail (GTK_IS_MENU (menu));
1649 g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
1651 g_free (menu->accel_path);
1652 menu->accel_path = g_strdup (accel_path);
1653 if (menu->accel_path)
1654 _gtk_menu_refresh_accel_paths (menu, FALSE);
1659 gboolean group_changed;
1663 refresh_accel_paths_foreach (GtkWidget *widget,
1666 AccelPropagation *prop = data;
1668 if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
1669 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
1670 prop->menu->accel_path,
1671 prop->menu->accel_group,
1672 prop->group_changed);
1676 _gtk_menu_refresh_accel_paths (GtkMenu *menu,
1677 gboolean group_changed)
1679 g_return_if_fail (GTK_IS_MENU (menu));
1681 if (menu->accel_path && menu->accel_group)
1683 AccelPropagation prop;
1686 prop.group_changed = group_changed;
1687 gtk_container_foreach (GTK_CONTAINER (menu),
1688 refresh_accel_paths_foreach,
1694 gtk_menu_reposition (GtkMenu *menu)
1696 g_return_if_fail (GTK_IS_MENU (menu));
1698 if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off)
1699 gtk_menu_position (menu);
1703 gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
1706 g_return_if_fail (GTK_IS_MENU (menu));
1708 if (adjustment->value != menu->scroll_offset)
1709 gtk_menu_scroll_to (menu, adjustment->value);
1713 gtk_menu_set_tearoff_hints (GtkMenu *menu,
1716 GdkGeometry geometry_hints;
1718 if (!menu->tearoff_window)
1721 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
1723 gtk_widget_size_request (menu->tearoff_scrollbar, NULL);
1724 width += menu->tearoff_scrollbar->requisition.width;
1727 geometry_hints.min_width = width;
1728 geometry_hints.max_width = width;
1730 geometry_hints.min_height = 0;
1731 geometry_hints.max_height = GTK_WIDGET (menu)->requisition.height;
1733 gtk_window_set_geometry_hints (GTK_WINDOW (menu->tearoff_window),
1736 GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
1740 gtk_menu_update_title (GtkMenu *menu)
1742 if (menu->tearoff_window)
1745 GtkWidget *attach_widget;
1747 title = gtk_menu_get_title (menu);
1750 attach_widget = gtk_menu_get_attach_widget (menu);
1751 if (GTK_IS_MENU_ITEM (attach_widget))
1753 GtkWidget *child = GTK_BIN (attach_widget)->child;
1754 if (GTK_IS_LABEL (child))
1755 title = gtk_label_get_text (GTK_LABEL (child));
1760 gtk_window_set_title (GTK_WINDOW (menu->tearoff_window), title);
1765 gtk_menu_get_toplevel (GtkWidget *menu)
1767 GtkWidget *attach, *toplevel;
1769 attach = gtk_menu_get_attach_widget (GTK_MENU (menu));
1771 if (GTK_IS_MENU_ITEM (attach))
1772 attach = attach->parent;
1774 if (GTK_IS_MENU (attach))
1775 return gtk_menu_get_toplevel (attach);
1776 else if (GTK_IS_WIDGET (attach))
1778 toplevel = gtk_widget_get_toplevel (attach);
1779 if (GTK_WIDGET_TOPLEVEL (toplevel))
1787 tearoff_window_destroyed (GtkWidget *widget,
1790 gtk_menu_set_tearoff_state (menu, FALSE);
1794 gtk_menu_set_tearoff_state (GtkMenu *menu,
1799 g_return_if_fail (GTK_IS_MENU (menu));
1801 if (menu->torn_off != torn_off)
1803 menu->torn_off = torn_off;
1804 menu->tearoff_active = torn_off;
1808 if (GTK_WIDGET_VISIBLE (menu))
1809 gtk_menu_popdown (menu);
1811 if (!menu->tearoff_window)
1813 GtkWidget *toplevel;
1815 menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW,
1816 "type", GTK_WINDOW_TOPLEVEL,
1817 "screen", gtk_widget_get_screen (menu->toplevel),
1818 "app-paintable", TRUE,
1821 gtk_window_set_type_hint (GTK_WINDOW (menu->tearoff_window),
1822 GDK_WINDOW_TYPE_HINT_MENU);
1823 gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->tearoff_window), 0);
1824 g_signal_connect (menu->tearoff_window, "destroy",
1825 G_CALLBACK (tearoff_window_destroyed), menu);
1826 g_signal_connect (menu->tearoff_window, "event",
1827 G_CALLBACK (gtk_menu_window_event), menu);
1829 gtk_menu_update_title (menu);
1831 gtk_widget_realize (menu->tearoff_window);
1833 toplevel = gtk_menu_get_toplevel (GTK_WIDGET (menu));
1834 if (toplevel != NULL)
1835 gtk_window_set_transient_for (GTK_WINDOW (menu->tearoff_window),
1836 GTK_WINDOW (toplevel));
1838 menu->tearoff_hbox = gtk_hbox_new (FALSE, FALSE);
1839 gtk_container_add (GTK_CONTAINER (menu->tearoff_window), menu->tearoff_hbox);
1841 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
1842 menu->tearoff_adjustment =
1843 GTK_ADJUSTMENT (gtk_adjustment_new (0,
1845 GTK_WIDGET (menu)->requisition.height,
1849 g_object_connect (menu->tearoff_adjustment,
1850 "signal::value_changed", gtk_menu_scrollbar_changed, menu,
1852 menu->tearoff_scrollbar = gtk_vscrollbar_new (menu->tearoff_adjustment);
1854 gtk_box_pack_end (GTK_BOX (menu->tearoff_hbox),
1855 menu->tearoff_scrollbar,
1858 if (menu->tearoff_adjustment->upper > height)
1859 gtk_widget_show (menu->tearoff_scrollbar);
1861 gtk_widget_show (menu->tearoff_hbox);
1864 gtk_menu_reparent (menu, menu->tearoff_hbox, FALSE);
1866 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, NULL);
1868 /* Update menu->requisition
1870 gtk_widget_size_request (GTK_WIDGET (menu), NULL);
1872 gtk_menu_set_tearoff_hints (menu, width);
1874 gtk_widget_realize (menu->tearoff_window);
1875 gtk_menu_position (menu);
1877 gtk_widget_show (GTK_WIDGET (menu));
1878 gtk_widget_show (menu->tearoff_window);
1880 gtk_menu_scroll_to (menu, 0);
1885 gtk_widget_hide (GTK_WIDGET (menu));
1886 gtk_widget_hide (menu->tearoff_window);
1887 if (GTK_IS_CONTAINER (menu->toplevel))
1888 gtk_menu_reparent (menu, menu->toplevel, FALSE);
1889 gtk_widget_destroy (menu->tearoff_window);
1891 menu->tearoff_window = NULL;
1892 menu->tearoff_hbox = NULL;
1893 menu->tearoff_scrollbar = NULL;
1894 menu->tearoff_adjustment = NULL;
1897 g_object_notify (G_OBJECT (menu), "tearoff-state");
1902 * gtk_menu_get_tearoff_state:
1905 * Returns whether the menu is torn off. See
1906 * gtk_menu_set_tearoff_state ().
1908 * Return value: %TRUE if the menu is currently torn off.
1911 gtk_menu_get_tearoff_state (GtkMenu *menu)
1913 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
1915 return menu->torn_off;
1919 * gtk_menu_set_title:
1921 * @title: a string containing the title for the menu.
1923 * Sets the title string for the menu. The title is displayed when the menu
1924 * is shown as a tearoff menu. If @title is %NULL, the menu will see if it is
1925 * attached to a parent menu item, and if so it will try to use the same text as
1926 * that menu item's label.
1929 gtk_menu_set_title (GtkMenu *menu,
1932 GtkMenuPrivate *priv;
1935 g_return_if_fail (GTK_IS_MENU (menu));
1937 priv = gtk_menu_get_private (menu);
1939 old_title = priv->title;
1940 priv->title = g_strdup (title);
1943 gtk_menu_update_title (menu);
1944 g_object_notify (G_OBJECT (menu), "tearoff-title");
1948 * gtk_menu_get_title:
1951 * Returns the title of the menu. See gtk_menu_set_title().
1953 * Return value: the title of the menu, or %NULL if the menu has no
1954 * title set on it. This string is owned by the widget and should
1955 * not be modified or freed.
1957 G_CONST_RETURN gchar *
1958 gtk_menu_get_title (GtkMenu *menu)
1960 GtkMenuPrivate *priv;
1962 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1964 priv = gtk_menu_get_private (menu);
1970 gtk_menu_reorder_child (GtkMenu *menu,
1974 GtkMenuShell *menu_shell;
1976 g_return_if_fail (GTK_IS_MENU (menu));
1977 g_return_if_fail (GTK_IS_MENU_ITEM (child));
1979 menu_shell = GTK_MENU_SHELL (menu);
1981 if (g_list_find (menu_shell->children, child))
1983 menu_shell->children = g_list_remove (menu_shell->children, child);
1984 menu_shell->children = g_list_insert (menu_shell->children, child, position);
1986 menu_queue_resize (menu);
1991 gtk_menu_style_set (GtkWidget *widget,
1992 GtkStyle *previous_style)
1994 if (GTK_WIDGET_REALIZED (widget))
1996 GtkMenu *menu = GTK_MENU (widget);
1998 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
1999 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2000 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2005 get_arrows_border (GtkMenu *menu, GtkBorder *border)
2007 guint scroll_arrow_height;
2009 gtk_widget_style_get (GTK_WIDGET (menu),
2010 "scroll-arrow-vlength", &scroll_arrow_height,
2013 border->top = menu->upper_arrow_visible ? scroll_arrow_height : 0;
2014 border->bottom = menu->lower_arrow_visible ? scroll_arrow_height : 0;
2016 border->left = border->right = 0;
2020 gtk_menu_realize (GtkWidget *widget)
2022 GdkWindowAttr attributes;
2023 gint attributes_mask;
2028 guint vertical_padding;
2029 guint horizontal_padding;
2030 GtkBorder arrow_border;
2032 g_return_if_fail (GTK_IS_MENU (widget));
2034 menu = GTK_MENU (widget);
2036 GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
2038 attributes.window_type = GDK_WINDOW_CHILD;
2039 attributes.x = widget->allocation.x;
2040 attributes.y = widget->allocation.y;
2041 attributes.width = widget->allocation.width;
2042 attributes.height = widget->allocation.height;
2043 attributes.wclass = GDK_INPUT_OUTPUT;
2044 attributes.visual = gtk_widget_get_visual (widget);
2045 attributes.colormap = gtk_widget_get_colormap (widget);
2047 attributes.event_mask = gtk_widget_get_events (widget);
2049 attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
2050 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
2052 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
2053 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
2054 gdk_window_set_user_data (widget->window, widget);
2056 border_width = GTK_CONTAINER (widget)->border_width;
2058 gtk_widget_style_get (GTK_WIDGET (menu),
2059 "vertical-padding", &vertical_padding,
2060 "horizontal-padding", &horizontal_padding,
2063 attributes.x = border_width + widget->style->xthickness + horizontal_padding;
2064 attributes.y = border_width + widget->style->ythickness + vertical_padding;
2065 attributes.width = MAX (1, widget->allocation.width - attributes.x * 2);
2066 attributes.height = MAX (1, widget->allocation.height - attributes.y * 2);
2068 get_arrows_border (menu, &arrow_border);
2069 attributes.y += arrow_border.top;
2070 attributes.height -= arrow_border.top;
2071 attributes.height -= arrow_border.bottom;
2073 menu->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
2074 gdk_window_set_user_data (menu->view_window, menu);
2078 attributes.width = MAX (1, widget->allocation.width - (border_width + widget->style->xthickness + horizontal_padding) * 2);
2079 attributes.height = MAX (1, widget->requisition.height - (border_width + widget->style->ythickness + vertical_padding) * 2);
2081 menu->bin_window = gdk_window_new (menu->view_window, &attributes, attributes_mask);
2082 gdk_window_set_user_data (menu->bin_window, menu);
2084 children = GTK_MENU_SHELL (menu)->children;
2087 child = children->data;
2088 children = children->next;
2090 gtk_widget_set_parent_window (child, menu->bin_window);
2093 widget->style = gtk_style_attach (widget->style, widget->window);
2094 gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
2095 gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
2096 gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
2098 if (GTK_MENU_SHELL (widget)->active_menu_item)
2099 gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
2100 GTK_MENU_SHELL (widget)->active_menu_item);
2102 gdk_window_show (menu->bin_window);
2103 gdk_window_show (menu->view_window);
2107 gtk_menu_focus (GtkWidget *widget,
2108 GtkDirectionType direction)
2111 * A menu or its menu items cannot have focus
2116 /* See notes in gtk_menu_popup() for information about the "grab transfer window"
2119 menu_grab_transfer_window_get (GtkMenu *menu)
2121 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2124 GdkWindowAttr attributes;
2125 gint attributes_mask;
2127 attributes.x = -100;
2128 attributes.y = -100;
2129 attributes.width = 10;
2130 attributes.height = 10;
2131 attributes.window_type = GDK_WINDOW_TEMP;
2132 attributes.wclass = GDK_INPUT_ONLY;
2133 attributes.override_redirect = TRUE;
2134 attributes.event_mask = 0;
2136 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
2138 window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
2139 &attributes, attributes_mask);
2140 gdk_window_set_user_data (window, menu);
2142 gdk_window_show (window);
2144 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), window);
2151 menu_grab_transfer_window_destroy (GtkMenu *menu)
2153 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2156 gdk_window_set_user_data (window, NULL);
2157 gdk_window_destroy (window);
2158 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), NULL);
2163 gtk_menu_unrealize (GtkWidget *widget)
2165 GtkMenu *menu = GTK_MENU (widget);
2167 menu_grab_transfer_window_destroy (menu);
2169 gdk_window_set_user_data (menu->view_window, NULL);
2170 gdk_window_destroy (menu->view_window);
2171 menu->view_window = NULL;
2173 gdk_window_set_user_data (menu->bin_window, NULL);
2174 gdk_window_destroy (menu->bin_window);
2175 menu->bin_window = NULL;
2177 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize) (widget);
2181 gtk_menu_size_request (GtkWidget *widget,
2182 GtkRequisition *requisition)
2186 GtkMenuShell *menu_shell;
2189 guint max_toggle_size;
2190 guint max_accel_width;
2191 guint vertical_padding;
2192 guint horizontal_padding;
2193 GtkRequisition child_requisition;
2194 GtkMenuPrivate *priv;
2196 g_return_if_fail (GTK_IS_MENU (widget));
2197 g_return_if_fail (requisition != NULL);
2199 menu = GTK_MENU (widget);
2200 menu_shell = GTK_MENU_SHELL (widget);
2201 priv = gtk_menu_get_private (menu);
2203 requisition->width = 0;
2204 requisition->height = 0;
2206 max_toggle_size = 0;
2207 max_accel_width = 0;
2209 g_free (priv->heights);
2210 priv->heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2211 priv->heights_length = gtk_menu_get_n_rows (menu);
2213 children = menu_shell->children;
2220 child = children->data;
2221 children = children->next;
2223 if (! GTK_WIDGET_VISIBLE (child))
2226 get_effective_child_attach (child, &l, &r, &t, &b);
2228 /* It's important to size_request the child
2229 * before doing the toggle size request, in
2230 * case the toggle size request depends on the size
2231 * request of a child of the child (e.g. for ImageMenuItem)
2234 GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE;
2235 gtk_widget_size_request (child, &child_requisition);
2237 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
2238 max_toggle_size = MAX (max_toggle_size, toggle_size);
2239 max_accel_width = MAX (max_accel_width,
2240 GTK_MENU_ITEM (child)->accelerator_width);
2242 part = child_requisition.width / (r - l);
2243 requisition->width = MAX (requisition->width, part);
2245 part = MAX (child_requisition.height, toggle_size) / (b - t);
2246 priv->heights[t] = MAX (priv->heights[t], part);
2249 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2250 requisition->height += priv->heights[i];
2252 requisition->width += max_toggle_size + max_accel_width;
2253 requisition->width *= gtk_menu_get_n_columns (menu);
2255 gtk_widget_style_get (GTK_WIDGET (menu),
2256 "vertical-padding", &vertical_padding,
2257 "horizontal-padding", &horizontal_padding,
2260 requisition->width += (GTK_CONTAINER (menu)->border_width + horizontal_padding +
2261 widget->style->xthickness) * 2;
2262 requisition->height += (GTK_CONTAINER (menu)->border_width + vertical_padding +
2263 widget->style->ythickness) * 2;
2265 menu->toggle_size = max_toggle_size;
2267 /* Don't resize the tearoff if it is not active, because it won't redraw (it is only a background pixmap).
2269 if (menu->tearoff_active)
2270 gtk_menu_set_tearoff_hints (menu, requisition->width);
2274 gtk_menu_size_allocate (GtkWidget *widget,
2275 GtkAllocation *allocation)
2278 GtkMenuShell *menu_shell;
2280 GtkAllocation child_allocation;
2281 GtkRequisition child_requisition;
2282 GtkMenuPrivate *priv;
2286 guint vertical_padding;
2287 guint horizontal_padding;
2289 g_return_if_fail (GTK_IS_MENU (widget));
2290 g_return_if_fail (allocation != NULL);
2292 menu = GTK_MENU (widget);
2293 menu_shell = GTK_MENU_SHELL (widget);
2294 priv = gtk_menu_get_private (menu);
2296 widget->allocation = *allocation;
2297 gtk_widget_get_child_requisition (GTK_WIDGET (menu), &child_requisition);
2299 gtk_widget_style_get (GTK_WIDGET (menu),
2300 "vertical-padding", &vertical_padding,
2301 "horizontal-padding", &horizontal_padding,
2304 x = GTK_CONTAINER (menu)->border_width + widget->style->xthickness + horizontal_padding;
2305 y = GTK_CONTAINER (menu)->border_width + widget->style->ythickness + vertical_padding;
2307 width = MAX (1, allocation->width - x * 2);
2308 height = MAX (1, allocation->height - y * 2);
2310 child_requisition.width -= x * 2;
2311 child_requisition.height -= y * 2;
2313 if (menu_shell->active)
2314 gtk_menu_scroll_to (menu, menu->scroll_offset);
2316 if (!menu->tearoff_active)
2318 GtkBorder arrow_border;
2320 get_arrows_border (menu, &arrow_border);
2321 y += arrow_border.top;
2322 height -= arrow_border.top;
2323 height -= arrow_border.bottom;
2326 if (GTK_WIDGET_REALIZED (widget))
2328 gdk_window_move_resize (widget->window,
2329 allocation->x, allocation->y,
2330 allocation->width, allocation->height);
2332 gdk_window_move_resize (menu->view_window,
2339 if (menu_shell->children)
2341 gint base_width = width / gtk_menu_get_n_columns (menu);
2343 children = menu_shell->children;
2346 child = children->data;
2347 children = children->next;
2349 if (GTK_WIDGET_VISIBLE (child))
2354 get_effective_child_attach (child, &l, &r, &t, &b);
2356 if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
2359 tmp = gtk_menu_get_n_columns (menu) - l;
2360 l = gtk_menu_get_n_columns (menu) - r;
2364 child_allocation.width = (r - l) * base_width;
2365 child_allocation.height = 0;
2366 child_allocation.x = l * base_width;
2367 child_allocation.y = 0;
2369 for (i = 0; i < b; i++)
2372 child_allocation.y += priv->heights[i];
2374 child_allocation.height += priv->heights[i];
2377 gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
2380 gtk_widget_size_allocate (child, &child_allocation);
2381 gtk_widget_queue_draw (child);
2385 /* Resize the item window */
2386 if (GTK_WIDGET_REALIZED (widget))
2392 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2393 height += priv->heights[i];
2395 width = gtk_menu_get_n_columns (menu) * base_width;
2396 gdk_window_resize (menu->bin_window, width, height);
2399 if (menu->tearoff_active)
2401 if (allocation->height >= widget->requisition.height)
2403 if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2405 gtk_widget_hide (menu->tearoff_scrollbar);
2406 gtk_menu_set_tearoff_hints (menu, allocation->width);
2408 gtk_menu_scroll_to (menu, 0);
2413 menu->tearoff_adjustment->upper = widget->requisition.height;
2414 menu->tearoff_adjustment->page_size = allocation->height;
2416 if (menu->tearoff_adjustment->value + menu->tearoff_adjustment->page_size >
2417 menu->tearoff_adjustment->upper)
2420 value = menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size;
2423 gtk_menu_scroll_to (menu, value);
2426 gtk_adjustment_changed (menu->tearoff_adjustment);
2428 if (!GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
2430 gtk_widget_show (menu->tearoff_scrollbar);
2431 gtk_menu_set_tearoff_hints (menu, allocation->width);
2439 get_arrows_visible_area (GtkMenu *menu,
2440 GdkRectangle *border,
2441 GdkRectangle *upper,
2442 GdkRectangle *lower,
2445 GtkWidget *widget = GTK_WIDGET (menu);
2446 guint vertical_padding;
2447 guint horizontal_padding;
2448 gint scroll_arrow_height;
2450 gtk_widget_style_get (widget,
2451 "vertical-padding", &vertical_padding,
2452 "horizontal-padding", &horizontal_padding,
2453 "scroll-arrow-vlength", &scroll_arrow_height,
2456 border->x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness + horizontal_padding;
2457 border->y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness + vertical_padding;
2458 gdk_drawable_get_size (widget->window, &border->width, &border->height);
2460 upper->x = border->x;
2461 upper->y = border->y;
2462 upper->width = border->width - 2 * border->x;
2463 upper->height = scroll_arrow_height;
2465 lower->x = border->x;
2466 lower->y = border->height - border->y - scroll_arrow_height;
2467 lower->width = border->width - 2 * border->x;
2468 lower->height = scroll_arrow_height;
2470 *arrow_space = scroll_arrow_height - 2 * widget->style->ythickness;
2474 gtk_menu_paint (GtkWidget *widget,
2475 GdkEventExpose *event)
2478 GtkMenuPrivate *priv;
2479 GdkRectangle border;
2484 g_return_if_fail (GTK_IS_MENU (widget));
2486 menu = GTK_MENU (widget);
2487 priv = gtk_menu_get_private (menu);
2489 get_arrows_visible_area (menu, &border, &upper, &lower, &arrow_space);
2491 if (event->window == widget->window)
2493 gint arrow_size = 0.7 * arrow_space;
2495 gtk_paint_box (widget->style,
2499 &event->area, widget, "menu",
2502 if (menu->upper_arrow_visible && !menu->tearoff_active)
2504 gtk_paint_box (widget->style,
2506 priv->upper_arrow_state,
2508 &event->area, widget, "menu",
2514 gtk_paint_arrow (widget->style,
2516 priv->upper_arrow_state,
2518 &event->area, widget, "menu_scroll_arrow_up",
2521 upper.x + (upper.width - arrow_size) / 2,
2522 upper.y + widget->style->ythickness + (arrow_space - arrow_size) / 2,
2523 arrow_size, arrow_size);
2526 if (menu->lower_arrow_visible && !menu->tearoff_active)
2528 gtk_paint_box (widget->style,
2530 priv->lower_arrow_state,
2532 &event->area, widget, "menu",
2538 gtk_paint_arrow (widget->style,
2540 priv->lower_arrow_state,
2542 &event->area, widget, "menu_scroll_arrow_down",
2545 lower.x + (lower.width - arrow_size) / 2,
2546 lower.y + widget->style->ythickness + (arrow_space - arrow_size) / 2,
2547 arrow_size, arrow_size);
2550 else if (event->window == menu->bin_window)
2552 gint y = -border.y + menu->scroll_offset;
2554 if (!menu->tearoff_active)
2556 GtkBorder arrow_border;
2558 get_arrows_border (menu, &arrow_border);
2559 y -= arrow_border.top;
2562 gtk_paint_box (widget->style,
2566 &event->area, widget, "menu",
2568 border.width, border.height);
2573 gtk_menu_expose (GtkWidget *widget,
2574 GdkEventExpose *event)
2576 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2577 g_return_val_if_fail (event != NULL, FALSE);
2579 if (GTK_WIDGET_DRAWABLE (widget))
2581 gtk_menu_paint (widget, event);
2583 (* GTK_WIDGET_CLASS (gtk_menu_parent_class)->expose_event) (widget, event);
2590 gtk_menu_show (GtkWidget *widget)
2592 GtkMenu *menu = GTK_MENU (widget);
2594 _gtk_menu_refresh_accel_paths (menu, FALSE);
2596 GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
2600 gtk_menu_button_scroll (GtkMenu *menu,
2601 GdkEventButton *event)
2603 if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
2605 gboolean touchscreen_mode;
2607 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
2608 "gtk-touchscreen-mode", &touchscreen_mode,
2611 if (touchscreen_mode)
2612 gtk_menu_handle_scrolling (menu,
2613 event->x_root, event->y_root,
2614 event->type == GDK_BUTTON_PRESS,
2624 pointer_in_menu_window (GtkWidget *widget,
2628 GtkMenu *menu = GTK_MENU (widget);
2630 if (GTK_WIDGET_MAPPED (menu->toplevel))
2632 GtkMenuShell *menu_shell;
2633 gint window_x, window_y;
2635 gdk_window_get_position (menu->toplevel->window, &window_x, &window_y);
2637 if (x_root >= window_x && x_root < window_x + widget->allocation.width &&
2638 y_root >= window_y && y_root < window_y + widget->allocation.height)
2641 menu_shell = GTK_MENU_SHELL (widget);
2643 if (GTK_IS_MENU (menu_shell->parent_menu_shell))
2644 return pointer_in_menu_window (menu_shell->parent_menu_shell,
2652 gtk_menu_button_press (GtkWidget *widget,
2653 GdkEventButton *event)
2655 if (event->type != GDK_BUTTON_PRESS)
2658 /* Don't pass down to menu shell for presses over scroll arrows
2660 if (gtk_menu_button_scroll (GTK_MENU (widget), event))
2663 /* Don't pass down to menu shell if a non-menuitem part of the menu
2664 * was clicked. The check for the event_widget being a GtkMenuShell
2665 * works because we have the pointer grabbed on menu_shell->window
2666 * with owner_events=TRUE, so all events that are either outside
2667 * the menu or on its border are delivered relative to
2668 * menu_shell->window.
2670 if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
2671 pointer_in_menu_window (widget, event->x_root, event->y_root))
2674 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_press_event (widget, event);
2678 gtk_menu_button_release (GtkWidget *widget,
2679 GdkEventButton *event)
2681 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2683 if (priv->ignore_button_release)
2685 priv->ignore_button_release = FALSE;
2689 if (event->type != GDK_BUTTON_RELEASE)
2692 /* Don't pass down to menu shell for releases over scroll arrows
2694 if (gtk_menu_button_scroll (GTK_MENU (widget), event))
2697 /* Don't pass down to menu shell if a non-menuitem part of the menu
2698 * was clicked (see comment in button_press()).
2700 if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
2701 pointer_in_menu_window (widget, event->x_root, event->y_root))
2703 /* Ugly: make sure menu_shell->button gets reset to 0 when we
2704 * bail out early here so it is in a consistent state for the
2705 * next button_press/button_release in GtkMenuShell.
2708 if (GTK_MENU_SHELL (widget)->active)
2709 GTK_MENU_SHELL (widget)->button = 0;
2714 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_release_event (widget, event);
2717 static const gchar *
2718 get_accel_path (GtkWidget *menu_item,
2723 GClosure *accel_closure;
2724 GtkAccelGroup *accel_group;
2726 path = _gtk_widget_get_accel_path (menu_item, locked);
2729 path = GTK_MENU_ITEM (menu_item)->accel_path;
2735 label = GTK_BIN (menu_item)->child;
2737 if (GTK_IS_ACCEL_LABEL (label))
2739 g_object_get (label,
2740 "accel-closure", &accel_closure,
2744 accel_group = gtk_accel_group_from_accel_closure (accel_closure);
2746 *locked = accel_group->lock_count > 0;
2756 gtk_menu_key_press (GtkWidget *widget,
2759 GtkMenuShell *menu_shell;
2761 gboolean delete = FALSE;
2762 gboolean can_change_accels;
2763 gchar *accel = NULL;
2764 guint accel_key, accel_mods;
2765 GdkModifierType consumed_modifiers;
2766 GdkDisplay *display;
2768 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
2769 g_return_val_if_fail (event != NULL, FALSE);
2771 menu_shell = GTK_MENU_SHELL (widget);
2772 menu = GTK_MENU (widget);
2774 gtk_menu_stop_navigating_submenu (menu);
2776 if (GTK_WIDGET_CLASS (gtk_menu_parent_class)->key_press_event (widget, event))
2779 display = gtk_widget_get_display (widget);
2781 g_object_get (gtk_widget_get_settings (widget),
2782 "gtk-menu-bar-accel", &accel,
2783 "gtk-can-change-accels", &can_change_accels,
2786 if (accel && *accel)
2789 GdkModifierType mods = 0;
2791 gtk_accelerator_parse (accel, &keyval, &mods);
2794 g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
2796 /* FIXME this is wrong, needs to be in the global accel resolution
2797 * thing, to properly consider i18n etc., but that probably requires
2798 * AccelGroup changes etc.
2800 if (event->keyval == keyval && (mods & event->state) == mods)
2802 gtk_menu_shell_cancel (menu_shell);
2810 switch (event->keyval)
2821 /* Figure out what modifiers went into determining the key symbol */
2822 gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
2823 event->hardware_keycode, event->state, event->group,
2824 NULL, NULL, NULL, &consumed_modifiers);
2826 accel_key = gdk_keyval_to_lower (event->keyval);
2827 accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
2829 /* If lowercasing affects the keysym, then we need to include SHIFT in the modifiers,
2830 * We re-upper case when we match against the keyval, but display and save in caseless form.
2832 if (accel_key != event->keyval)
2833 accel_mods |= GDK_SHIFT_MASK;
2835 /* Modify the accelerators */
2836 if (can_change_accels &&
2837 menu_shell->active_menu_item &&
2838 GTK_BIN (menu_shell->active_menu_item)->child && /* no separators */
2839 GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && /* no submenus */
2840 (delete || gtk_accelerator_valid (accel_key, accel_mods)))
2842 GtkWidget *menu_item = menu_shell->active_menu_item;
2843 gboolean locked, replace_accels = TRUE;
2846 path = get_accel_path (menu_item, &locked);
2847 if (!path || locked)
2849 /* can't change accelerators on menu_items without paths
2850 * (basically, those items are accelerator-locked).
2852 /* g_print("item has no path or is locked, menu prefix: %s\n", menu->accel_path); */
2853 gtk_widget_error_bell (widget);
2859 /* For the keys that act to delete the current setting, we delete
2860 * the current setting if there is one, otherwise, we set the
2861 * key as the accelerator.
2867 if (gtk_accel_map_lookup_entry (path, &key) &&
2868 (key.accel_key || key.accel_mods))
2874 changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
2878 /* we failed, probably because this key is in use and
2881 /* g_print("failed to change\n"); */
2882 gtk_widget_error_bell (widget);
2891 check_threshold (GtkWidget *widget,
2892 int start_x, int start_y,
2898 ABS (start_x - x) > THRESHOLD ||
2899 ABS (start_y - y) > THRESHOLD;
2903 definitely_within_item (GtkWidget *widget,
2907 GdkWindow *window = GTK_MENU_ITEM (widget)->event_window;
2910 gdk_drawable_get_size (window, &w, &h);
2913 check_threshold (widget, 0, 0, x, y) &&
2914 check_threshold (widget, w - 1, 0, x, y) &&
2915 check_threshold (widget, w - 1, h - 1, x, y) &&
2916 check_threshold (widget, 0, h - 1, x, y);
2920 gtk_menu_motion_notify (GtkWidget *widget,
2921 GdkEventMotion *event)
2923 GtkWidget *menu_item;
2925 GtkMenuShell *menu_shell;
2927 gboolean need_enter;
2929 if (GTK_IS_MENU (widget))
2931 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (widget));
2933 if (priv->ignore_button_release)
2934 priv->ignore_button_release = FALSE;
2936 gtk_menu_handle_scrolling (GTK_MENU (widget), event->x_root, event->y_root,
2940 /* We received the event for one of two reasons:
2942 * a) We are the active menu, and did gtk_grab_add()
2943 * b) The widget is a child of ours, and the event was propagated
2945 * Since for computation of navigation regions, we want the menu which
2946 * is the parent of the menu item, for a), we need to find that menu,
2947 * which may be different from 'widget'.
2949 menu_item = gtk_get_event_widget ((GdkEvent*) event);
2950 if (!GTK_IS_MENU_ITEM (menu_item) ||
2951 !GTK_IS_MENU (menu_item->parent))
2954 menu_shell = GTK_MENU_SHELL (menu_item->parent);
2955 menu = GTK_MENU (menu_shell);
2957 if (definitely_within_item (menu_item, event->x, event->y))
2958 menu_shell->activate_time = 0;
2960 need_enter = (menu->navigation_region != NULL || menu_shell->ignore_enter);
2962 /* Check to see if we are within an active submenu's navigation region
2964 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
2967 /* Make sure we pop down if we enter a non-selectable menu item, so we
2968 * don't show a submenu when the cursor is outside the stay-up triangle.
2970 if (!_gtk_menu_item_is_selectable (menu_item))
2972 gtk_menu_shell_deselect (menu_shell);
2978 /* The menu is now sensitive to enter events on its items, but
2979 * was previously sensitive. So we fake an enter event.
2983 menu_shell->ignore_enter = FALSE;
2985 gdk_drawable_get_size (event->window, &width, &height);
2986 if (event->x >= 0 && event->x < width &&
2987 event->y >= 0 && event->y < height)
2989 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
2992 send_event->crossing.window = g_object_ref (event->window);
2993 send_event->crossing.time = event->time;
2994 send_event->crossing.send_event = TRUE;
2995 send_event->crossing.x_root = event->x_root;
2996 send_event->crossing.y_root = event->y_root;
2997 send_event->crossing.x = event->x;
2998 send_event->crossing.y = event->y;
2999 send_event->crossing.state = event->state;
3001 /* We send the event to 'widget', the currently active menu,
3002 * instead of 'menu', the menu that the pointer is in. This
3003 * will ensure that the event will be ignored unless the
3004 * menuitem is a child of the active menu or some parent
3005 * menu of the active menu.
3007 result = gtk_widget_event (widget, send_event);
3008 gdk_event_free (send_event);
3018 get_double_arrows (GtkMenu *menu)
3020 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
3021 gboolean double_arrows;
3023 gtk_widget_style_get (GTK_WIDGET (menu),
3024 "double-arrows", &double_arrows,
3027 return double_arrows || (priv->initially_pushed_in &&
3028 menu->scroll_offset != 0);
3032 gtk_menu_scroll_by (GtkMenu *menu,
3037 gint view_width, view_height;
3038 gboolean double_arrows;
3039 GtkBorder arrow_border;
3041 widget = GTK_WIDGET (menu);
3042 offset = menu->scroll_offset + step;
3044 get_arrows_border (menu, &arrow_border);
3046 double_arrows = get_double_arrows (menu);
3048 /* If we scroll upward and the non-visible top part
3049 * is smaller than the scroll arrow it would be
3050 * pretty stupid to show the arrow and taking more
3051 * screen space than just scrolling to the top.
3054 if ((step < 0) && (offset < arrow_border.top))
3057 /* Don't scroll over the top if we weren't before: */
3058 if ((menu->scroll_offset >= 0) && (offset < 0))
3061 gdk_drawable_get_size (widget->window, &view_width, &view_height);
3063 if (menu->scroll_offset == 0 &&
3064 view_height >= widget->requisition.height)
3067 /* Don't scroll past the bottom if we weren't before: */
3068 if (menu->scroll_offset > 0)
3069 view_height -= arrow_border.top;
3071 /* When both arrows are always shown, reduce
3072 * view height even more.
3075 view_height -= arrow_border.bottom;
3077 if ((menu->scroll_offset + view_height <= widget->requisition.height) &&
3078 (offset + view_height > widget->requisition.height))
3079 offset = widget->requisition.height - view_height;
3081 if (offset != menu->scroll_offset)
3082 gtk_menu_scroll_to (menu, offset);
3086 gtk_menu_do_timeout_scroll (GtkMenu *menu,
3087 gboolean touchscreen_mode)
3089 gboolean upper_visible;
3090 gboolean lower_visible;
3092 upper_visible = menu->upper_arrow_visible;
3093 lower_visible = menu->lower_arrow_visible;
3095 gtk_menu_scroll_by (menu, menu->scroll_step);
3097 if (touchscreen_mode &&
3098 (upper_visible != menu->upper_arrow_visible ||
3099 lower_visible != menu->lower_arrow_visible))
3101 /* We are about to hide a scroll arrow while the mouse is pressed,
3102 * this would cause the uncovered menu item to be activated on button
3103 * release. Therefore we need to ignore button release here
3105 GTK_MENU_SHELL (menu)->ignore_enter = TRUE;
3106 gtk_menu_get_private (menu)->ignore_button_release = TRUE;
3111 gtk_menu_scroll_timeout (gpointer data)
3114 gboolean touchscreen_mode;
3116 menu = GTK_MENU (data);
3118 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3119 "gtk-touchscreen-mode", &touchscreen_mode,
3122 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3128 gtk_menu_scroll_timeout_initial (gpointer data)
3132 gboolean touchscreen_mode;
3134 menu = GTK_MENU (data);
3136 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3137 "gtk-timeout-repeat", &timeout,
3138 "gtk-touchscreen-mode", &touchscreen_mode,
3141 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3143 gtk_menu_remove_scroll_timeout (menu);
3145 menu->timeout_id = gdk_threads_add_timeout (timeout,
3146 gtk_menu_scroll_timeout,
3153 gtk_menu_start_scrolling (GtkMenu *menu)
3156 gboolean touchscreen_mode;
3158 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3159 "gtk-timeout-repeat", &timeout,
3160 "gtk-touchscreen-mode", &touchscreen_mode,
3163 gtk_menu_do_timeout_scroll (menu, touchscreen_mode);
3165 menu->timeout_id = gdk_threads_add_timeout (timeout,
3166 gtk_menu_scroll_timeout_initial,
3171 gtk_menu_scroll (GtkWidget *widget,
3172 GdkEventScroll *event)
3174 GtkMenu *menu = GTK_MENU (widget);
3176 switch (event->direction)
3178 case GDK_SCROLL_RIGHT:
3179 case GDK_SCROLL_DOWN:
3180 gtk_menu_scroll_by (menu, MENU_SCROLL_STEP2);
3182 case GDK_SCROLL_LEFT:
3184 gtk_menu_scroll_by (menu, - MENU_SCROLL_STEP2);
3192 get_arrows_sensitive_area (GtkMenu *menu,
3193 GdkRectangle *upper,
3194 GdkRectangle *lower)
3198 guint vertical_padding;
3200 gint scroll_arrow_height;
3202 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
3204 gtk_widget_style_get (GTK_WIDGET (menu),
3205 "vertical-padding", &vertical_padding,
3206 "scroll-arrow-vlength", &scroll_arrow_height,
3209 border = GTK_CONTAINER (menu)->border_width +
3210 GTK_WIDGET (menu)->style->ythickness + vertical_padding;
3212 gdk_window_get_position (GTK_WIDGET (menu)->window, &win_x, &win_y);
3218 upper->width = width;
3219 upper->height = scroll_arrow_height + border;
3225 lower->y = win_y + height - border - scroll_arrow_height;
3226 lower->width = width;
3227 lower->height = scroll_arrow_height + border;
3233 gtk_menu_handle_scrolling (GtkMenu *menu,
3239 GtkMenuShell *menu_shell;
3240 GtkMenuPrivate *priv;
3243 gboolean scroll_fast = FALSE;
3245 gboolean touchscreen_mode;
3247 priv = gtk_menu_get_private (menu);
3249 menu_shell = GTK_MENU_SHELL (menu);
3251 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3252 "gtk-touchscreen-mode", &touchscreen_mode,
3255 gdk_window_get_position (menu->toplevel->window, &top_x, &top_y);
3259 /* upper arrow handling */
3261 get_arrows_sensitive_area (menu, &rect, NULL);
3264 if (menu->upper_arrow_visible && !menu->tearoff_active &&
3265 (x >= rect.x) && (x < rect.x + rect.width) &&
3266 (y >= rect.y) && (y < rect.y + rect.height))
3271 if (touchscreen_mode)
3272 menu->upper_arrow_prelight = in_arrow;
3274 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3276 gboolean arrow_pressed = FALSE;
3278 if (menu->upper_arrow_visible && !menu->tearoff_active)
3280 if (touchscreen_mode)
3282 if (enter && menu->upper_arrow_prelight)
3284 if (menu->timeout_id == 0)
3286 /* Deselect the active item so that
3287 * any submenus are popped down
3289 gtk_menu_shell_deselect (menu_shell);
3291 gtk_menu_remove_scroll_timeout (menu);
3292 menu->scroll_step = -MENU_SCROLL_STEP2; /* always fast */
3296 /* Only do stuff on click. */
3297 gtk_menu_start_scrolling (menu);
3298 arrow_pressed = TRUE;
3303 arrow_pressed = TRUE;
3308 gtk_menu_stop_scrolling (menu);
3311 else /* !touchscreen_mode */
3313 scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
3315 if (enter && in_arrow &&
3316 (!menu->upper_arrow_prelight ||
3317 menu->scroll_fast != scroll_fast))
3319 menu->upper_arrow_prelight = TRUE;
3320 menu->scroll_fast = scroll_fast;
3322 /* Deselect the active item so that
3323 * any submenus are popped down
3325 gtk_menu_shell_deselect (menu_shell);
3327 gtk_menu_remove_scroll_timeout (menu);
3328 menu->scroll_step = scroll_fast ?
3329 -MENU_SCROLL_STEP2 : -MENU_SCROLL_STEP1;
3332 gdk_threads_add_timeout (scroll_fast ?
3333 MENU_SCROLL_TIMEOUT2 :
3334 MENU_SCROLL_TIMEOUT1,
3335 gtk_menu_scroll_timeout, menu);
3337 else if (!enter && !in_arrow && menu->upper_arrow_prelight)
3339 gtk_menu_stop_scrolling (menu);
3344 /* gtk_menu_start_scrolling() might have hit the top of the
3345 * menu, so check if the button isn't insensitive before
3346 * changing it to something else.
3348 if (priv->upper_arrow_state != GTK_STATE_INSENSITIVE)
3350 GtkStateType arrow_state = GTK_STATE_NORMAL;
3353 arrow_state = GTK_STATE_ACTIVE;
3354 else if (menu->upper_arrow_prelight)
3355 arrow_state = GTK_STATE_PRELIGHT;
3357 if (arrow_state != priv->upper_arrow_state)
3359 priv->upper_arrow_state = arrow_state;
3361 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3367 /* lower arrow handling */
3369 get_arrows_sensitive_area (menu, NULL, &rect);
3372 if (menu->lower_arrow_visible && !menu->tearoff_active &&
3373 (x >= rect.x) && (x < rect.x + rect.width) &&
3374 (y >= rect.y) && (y < rect.y + rect.height))
3379 if (touchscreen_mode)
3380 menu->lower_arrow_prelight = in_arrow;
3382 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3384 gboolean arrow_pressed = FALSE;
3386 if (menu->lower_arrow_visible && !menu->tearoff_active)
3388 if (touchscreen_mode)
3390 if (enter && menu->lower_arrow_prelight)
3392 if (menu->timeout_id == 0)
3394 /* Deselect the active item so that
3395 * any submenus are popped down
3397 gtk_menu_shell_deselect (menu_shell);
3399 gtk_menu_remove_scroll_timeout (menu);
3400 menu->scroll_step = MENU_SCROLL_STEP2; /* always fast */
3404 /* Only do stuff on click. */
3405 gtk_menu_start_scrolling (menu);
3406 arrow_pressed = TRUE;
3411 arrow_pressed = TRUE;
3416 gtk_menu_stop_scrolling (menu);
3419 else /* !touchscreen_mode */
3421 scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
3423 if (enter && in_arrow &&
3424 (!menu->lower_arrow_prelight ||
3425 menu->scroll_fast != scroll_fast))
3427 menu->lower_arrow_prelight = TRUE;
3428 menu->scroll_fast = scroll_fast;
3430 /* Deselect the active item so that
3431 * any submenus are popped down
3433 gtk_menu_shell_deselect (menu_shell);
3435 gtk_menu_remove_scroll_timeout (menu);
3436 menu->scroll_step = scroll_fast ?
3437 MENU_SCROLL_STEP2 : MENU_SCROLL_STEP1;
3440 gdk_threads_add_timeout (scroll_fast ?
3441 MENU_SCROLL_TIMEOUT2 :
3442 MENU_SCROLL_TIMEOUT1,
3443 gtk_menu_scroll_timeout, menu);
3445 else if (!enter && !in_arrow && menu->lower_arrow_prelight)
3447 gtk_menu_stop_scrolling (menu);
3452 /* gtk_menu_start_scrolling() might have hit the bottom of the
3453 * menu, so check if the button isn't insensitive before
3454 * changing it to something else.
3456 if (priv->lower_arrow_state != GTK_STATE_INSENSITIVE)
3458 GtkStateType arrow_state = GTK_STATE_NORMAL;
3461 arrow_state = GTK_STATE_ACTIVE;
3462 else if (menu->lower_arrow_prelight)
3463 arrow_state = GTK_STATE_PRELIGHT;
3465 if (arrow_state != priv->lower_arrow_state)
3467 priv->lower_arrow_state = arrow_state;
3469 gdk_window_invalidate_rect (GTK_WIDGET (menu)->window,
3477 gtk_menu_enter_notify (GtkWidget *widget,
3478 GdkEventCrossing *event)
3480 GtkWidget *menu_item;
3481 gboolean touchscreen_mode;
3483 g_object_get (gtk_widget_get_settings (widget),
3484 "gtk-touchscreen-mode", &touchscreen_mode,
3487 menu_item = gtk_get_event_widget ((GdkEvent*) event);
3488 if (GTK_IS_MENU (widget))
3490 GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
3492 if (!menu_shell->ignore_enter)
3493 gtk_menu_handle_scrolling (GTK_MENU (widget),
3494 event->x_root, event->y_root, TRUE, TRUE);
3497 if (!touchscreen_mode && GTK_IS_MENU_ITEM (menu_item))
3499 GtkWidget *menu = menu_item->parent;
3501 if (GTK_IS_MENU (menu))
3503 GtkMenuPrivate *priv = gtk_menu_get_private (GTK_MENU (menu));
3504 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
3506 if (priv->seen_item_enter)
3508 /* This is the second enter we see for an item
3509 * on this menu. This means a release should always
3512 menu_shell->activate_time = 0;
3514 else if ((event->detail != GDK_NOTIFY_NONLINEAR &&
3515 event->detail != GDK_NOTIFY_NONLINEAR_VIRTUAL))
3517 if (definitely_within_item (menu_item, event->x, event->y))
3519 /* This is an actual user-enter (ie. not a pop-under)
3520 * In this case, the user must either have entered
3521 * sufficiently far enough into the item, or he must move
3522 * far enough away from the enter point. (see
3523 * gtk_menu_motion_notify())
3525 menu_shell->activate_time = 0;
3529 priv->seen_item_enter = TRUE;
3533 /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
3534 * will not correspond to the event widget's parent. Check to see
3535 * if we are in the parent's navigation region.
3537 if (GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (menu_item->parent) &&
3538 gtk_menu_navigating_submenu (GTK_MENU (menu_item->parent),
3539 event->x_root, event->y_root))
3542 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (widget, event);
3546 gtk_menu_leave_notify (GtkWidget *widget,
3547 GdkEventCrossing *event)
3549 GtkMenuShell *menu_shell;
3551 GtkMenuItem *menu_item;
3552 GtkWidget *event_widget;
3554 menu = GTK_MENU (widget);
3555 menu_shell = GTK_MENU_SHELL (widget);
3557 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
3560 gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
3562 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3564 if (!GTK_IS_MENU_ITEM (event_widget))
3567 menu_item = GTK_MENU_ITEM (event_widget);
3569 /* Here we check to see if we're leaving an active menu item with a submenu,
3570 * in which case we enter submenu navigation mode.
3572 if (menu_shell->active_menu_item != NULL
3573 && menu_item->submenu != NULL
3574 && menu_item->submenu_placement == GTK_LEFT_RIGHT)
3576 if (GTK_MENU_SHELL (menu_item->submenu)->active)
3578 gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
3581 else if (menu_item == GTK_MENU_ITEM (menu_shell->active_menu_item))
3583 /* We are leaving an active menu item with nonactive submenu.
3584 * Deselect it so we don't surprise the user with by popping
3585 * up a submenu _after_ he left the item.
3587 gtk_menu_shell_deselect (menu_shell);
3592 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->leave_notify_event (widget, event);
3596 gtk_menu_stop_navigating_submenu (GtkMenu *menu)
3598 if (menu->navigation_region)
3600 gdk_region_destroy (menu->navigation_region);
3601 menu->navigation_region = NULL;
3603 if (menu->navigation_timeout)
3605 g_source_remove (menu->navigation_timeout);
3606 menu->navigation_timeout = 0;
3610 /* When the timeout is elapsed, the navigation region is destroyed
3611 * and the menuitem under the pointer (if any) is selected.
3614 gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
3616 GtkMenu *menu = user_data;
3617 GdkWindow *child_window;
3619 gtk_menu_stop_navigating_submenu (menu);
3621 if (GTK_WIDGET_REALIZED (menu))
3623 child_window = gdk_window_get_pointer (menu->bin_window, NULL, NULL, NULL);
3627 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
3629 send_event->crossing.window = g_object_ref (child_window);
3630 send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
3631 send_event->crossing.send_event = TRUE;
3633 GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
3635 gdk_event_free (send_event);
3643 gtk_menu_navigating_submenu (GtkMenu *menu,
3647 if (menu->navigation_region)
3649 if (gdk_region_point_in (menu->navigation_region, event_x, event_y))
3653 gtk_menu_stop_navigating_submenu (menu);
3660 #undef DRAW_STAY_UP_TRIANGLE
3662 #ifdef DRAW_STAY_UP_TRIANGLE
3665 draw_stay_up_triangle (GdkWindow *window,
3668 /* Draw ugly color all over the stay-up triangle */
3669 GdkColor ugly_color = { 0, 50000, 10000, 10000 };
3670 GdkGCValues gc_values;
3672 GdkRectangle clipbox;
3674 gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
3675 ugly_gc = gdk_gc_new_with_values (window, &gc_values, 0 | GDK_GC_SUBWINDOW);
3676 gdk_gc_set_rgb_fg_color (ugly_gc, &ugly_color);
3677 gdk_gc_set_clip_region (ugly_gc, region);
3679 gdk_region_get_clipbox (region, &clipbox);
3681 gdk_draw_rectangle (window,
3684 clipbox.x, clipbox.y,
3685 clipbox.width, clipbox.height);
3687 g_object_unref (ugly_gc);
3692 flip_region (GdkRegion *region,
3697 GdkRectangle *rectangles;
3698 GdkRectangle clipbox;
3699 GdkRegion *new_region;
3702 new_region = gdk_region_new ();
3704 gdk_region_get_rectangles (region, &rectangles, &n_rectangles);
3705 gdk_region_get_clipbox (region, &clipbox);
3707 for (i = 0; i < n_rectangles; ++i)
3709 GdkRectangle rect = rectangles[i];
3712 rect.y -= 2 * (rect.y - clipbox.y) + rect.height;
3715 rect.x -= 2 * (rect.x - clipbox.x) + rect.width;
3717 gdk_region_union_with_rect (new_region, &rect);
3720 g_free (rectangles);
3726 gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
3727 GtkMenuItem *menu_item,
3728 GdkEventCrossing *event)
3730 gint submenu_left = 0;
3731 gint submenu_right = 0;
3732 gint submenu_top = 0;
3733 gint submenu_bottom = 0;
3737 GtkWidget *event_widget;
3739 g_return_if_fail (menu_item->submenu != NULL);
3740 g_return_if_fail (event != NULL);
3742 event_widget = gtk_get_event_widget ((GdkEvent*) event);
3744 gdk_window_get_origin (menu_item->submenu->window, &submenu_left, &submenu_top);
3745 gdk_drawable_get_size (menu_item->submenu->window, &width, &height);
3747 submenu_right = submenu_left + width;
3748 submenu_bottom = submenu_top + height;
3750 gdk_drawable_get_size (event_widget->window, &width, &height);
3752 if (event->x >= 0 && event->x < width)
3755 gboolean flip_y = FALSE;
3756 gboolean flip_x = FALSE;
3758 gtk_menu_stop_navigating_submenu (menu);
3760 if (menu_item->submenu_direction == GTK_DIRECTION_RIGHT)
3763 point[0].x = event->x_root;
3764 point[1].x = submenu_left;
3769 point[0].x = event->x_root + 1;
3770 point[1].x = 2 * (event->x_root + 1) - submenu_right;
3778 point[0].y = event->y_root + 1;
3779 point[1].y = 2 * (event->y_root + 1) - submenu_top + NAVIGATION_REGION_OVERSHOOT;
3781 if (point[0].y >= point[1].y - NAVIGATION_REGION_OVERSHOOT)
3789 point[0].y = event->y_root;
3790 point[1].y = submenu_bottom + NAVIGATION_REGION_OVERSHOOT;
3792 if (point[0].y >= submenu_bottom)
3796 point[2].x = point[1].x;
3797 point[2].y = point[0].y;
3799 menu->navigation_region = gdk_region_polygon (point, 3, GDK_WINDING_RULE);
3801 if (flip_x || flip_y)
3803 GdkRegion *new_region = flip_region (menu->navigation_region, flip_x, flip_y);
3804 gdk_region_destroy (menu->navigation_region);
3805 menu->navigation_region = new_region;
3808 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
3809 "gtk-menu-popdown-delay", &popdown_delay,
3812 menu->navigation_timeout = gdk_threads_add_timeout (popdown_delay,
3813 gtk_menu_stop_navigating_submenu_cb,
3816 #ifdef DRAW_STAY_UP_TRIANGLE
3817 draw_stay_up_triangle (gdk_get_default_root_window(),
3818 menu->navigation_region);
3824 gtk_menu_deactivate (GtkMenuShell *menu_shell)
3828 g_return_if_fail (GTK_IS_MENU (menu_shell));
3830 parent = menu_shell->parent_menu_shell;
3832 menu_shell->activate_time = 0;
3833 gtk_menu_popdown (GTK_MENU (menu_shell));
3836 gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
3840 gtk_menu_position (GtkMenu *menu)
3843 GtkRequisition requisition;
3844 GtkMenuPrivate *private;
3849 GdkScreen *pointer_screen;
3850 GdkRectangle monitor;
3852 g_return_if_fail (GTK_IS_MENU (menu));
3854 widget = GTK_WIDGET (menu);
3856 screen = gtk_widget_get_screen (widget);
3857 gdk_display_get_pointer (gdk_screen_get_display (screen),
3858 &pointer_screen, &x, &y, NULL);
3860 /* We need the requisition to figure out the right place to
3861 * popup the menu. In fact, we always need to ask here, since
3862 * if a size_request was queued while we weren't popped up,
3863 * the requisition won't have been recomputed yet.
3865 gtk_widget_size_request (widget, &requisition);
3867 if (pointer_screen != screen)
3869 /* Pointer is on a different screen; roughly center the
3870 * menu on the screen. If someone was using multiscreen
3871 * + Xinerama together they'd probably want something
3872 * fancier; but that is likely to be vanishingly rare.
3874 x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
3875 y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
3878 private = gtk_menu_get_private (menu);
3879 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3881 private->initially_pushed_in = FALSE;
3883 /* Set the type hint here to allow custom position functions to set a different hint */
3884 if (!GTK_WIDGET_VISIBLE (menu->toplevel))
3885 gtk_window_set_type_hint (GTK_WINDOW (menu->toplevel), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
3887 if (menu->position_func)
3889 (* menu->position_func) (menu, &x, &y, &private->initially_pushed_in,
3890 menu->position_func_data);
3891 if (private->monitor_num < 0)
3892 private->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
3894 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3898 gint space_left, space_right, space_above, space_below;
3901 gint xthickness = widget->style->xthickness;
3902 gint ythickness = widget->style->ythickness;
3903 gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
3905 /* The placement of popup menus horizontally works like this (with
3906 * RTL in parentheses)
3908 * - If there is enough room to the right (left) of the mouse cursor,
3909 * position the menu there.
3911 * - Otherwise, if if there is enough room to the left (right) of the
3912 * mouse cursor, position the menu there.
3914 * - Otherwise if the menu is smaller than the monitor, position it
3915 * on the side of the mouse cursor that has the most space available
3917 * - Otherwise (if there is simply not enough room for the menu on the
3918 * monitor), position it as far left (right) as possible.
3920 * Positioning in the vertical direction is similar: first try below
3921 * mouse cursor, then above.
3923 gdk_screen_get_monitor_geometry (screen, private->monitor_num, &monitor);
3925 space_left = x - monitor.x;
3926 space_right = monitor.x + monitor.width - x - 1;
3927 space_above = y - monitor.y;
3928 space_below = monitor.y + monitor.height - y - 1;
3930 /* position horizontally */
3932 /* the amount of space we need to position the menu. Note the
3933 * menu is offset "xthickness" pixels
3935 needed_width = requisition.width - xthickness;
3937 if (needed_width <= space_left ||
3938 needed_width <= space_right)
3940 if ((rtl && needed_width <= space_left) ||
3941 (!rtl && needed_width > space_right))
3944 x = x + xthickness - requisition.width + 1;
3948 /* position right */
3952 /* x is clamped on-screen further down */
3954 else if (requisition.width <= monitor.width)
3956 /* the menu is too big to fit on either side of the mouse
3957 * cursor, but smaller than the monitor. Position it on
3958 * the side that has the most space
3960 if (space_left > space_right)
3968 x = monitor.x + monitor.width - requisition.width;
3971 else /* menu is simply too big for the monitor */
3976 x = monitor.x + monitor.width - requisition.width;
3985 /* Position vertically. The algorithm is the same as above, but
3986 * simpler because we don't have to take RTL into account.
3988 needed_height = requisition.height - ythickness;
3990 if (needed_height <= space_above ||
3991 needed_height <= space_below)
3993 if (needed_height <= space_below)
3996 y = y + ythickness - requisition.height + 1;
3998 y = CLAMP (y, monitor.y,
3999 monitor.y + monitor.height - requisition.height);
4001 else if (needed_height > space_below && needed_height > space_above)
4003 if (space_below >= space_above)
4004 y = monitor.y + monitor.height - requisition.height;
4016 if (private->initially_pushed_in)
4018 menu_height = GTK_WIDGET (menu)->requisition.height;
4020 if (y + menu_height > monitor.y + monitor.height)
4022 scroll_offset -= y + menu_height - (monitor.y + monitor.height);
4023 y = (monitor.y + monitor.height) - menu_height;
4028 scroll_offset += monitor.y - y;
4033 /* FIXME: should this be done in the various position_funcs ? */
4034 x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
4036 if (GTK_MENU_SHELL (menu)->active)
4038 private->have_position = TRUE;
4043 if (y + requisition.height > monitor.y + monitor.height)
4044 requisition.height = (monitor.y + monitor.height) - y;
4048 scroll_offset += monitor.y - y;
4049 requisition.height -= monitor.y - y;
4053 if (scroll_offset > 0)
4055 GtkBorder arrow_border;
4057 get_arrows_border (menu, &arrow_border);
4058 scroll_offset += arrow_border.top;
4061 gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window),
4064 if (!GTK_MENU_SHELL (menu)->active)
4066 gtk_window_resize (GTK_WINDOW (menu->tearoff_window),
4067 requisition.width, requisition.height);
4070 menu->scroll_offset = scroll_offset;
4074 gtk_menu_remove_scroll_timeout (GtkMenu *menu)
4076 if (menu->timeout_id)
4078 g_source_remove (menu->timeout_id);
4079 menu->timeout_id = 0;
4084 gtk_menu_stop_scrolling (GtkMenu *menu)
4086 gboolean touchscreen_mode;
4088 gtk_menu_remove_scroll_timeout (menu);
4090 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
4091 "gtk-touchscreen-mode", &touchscreen_mode,
4094 if (!touchscreen_mode)
4096 menu->upper_arrow_prelight = FALSE;
4097 menu->lower_arrow_prelight = FALSE;
4102 gtk_menu_scroll_to (GtkMenu *menu,
4107 gint view_width, view_height;
4110 guint vertical_padding;
4111 guint horizontal_padding;
4112 gboolean double_arrows;
4113 GtkBorder arrow_border;
4115 widget = GTK_WIDGET (menu);
4117 if (menu->tearoff_active &&
4118 menu->tearoff_adjustment &&
4119 (menu->tearoff_adjustment->value != offset))
4121 menu->tearoff_adjustment->value =
4123 0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
4124 gtk_adjustment_value_changed (menu->tearoff_adjustment);
4127 /* Move/resize the viewport according to arrows: */
4128 view_width = widget->allocation.width;
4129 view_height = widget->allocation.height;
4131 gtk_widget_style_get (GTK_WIDGET (menu),
4132 "vertical-padding", &vertical_padding,
4133 "horizontal-padding", &horizontal_padding,
4136 double_arrows = get_double_arrows (menu);
4138 border_width = GTK_CONTAINER (menu)->border_width;
4139 view_width -= (border_width + widget->style->xthickness + horizontal_padding) * 2;
4140 view_height -= (border_width + widget->style->ythickness + vertical_padding) * 2;
4141 menu_height = widget->requisition.height -
4142 (border_width + widget->style->ythickness + vertical_padding) * 2;
4144 x = border_width + widget->style->xthickness + horizontal_padding;
4145 y = border_width + widget->style->ythickness + vertical_padding;
4147 if (double_arrows && !menu->tearoff_active)
4149 if (view_height < menu_height ||
4150 (offset > 0 && menu->scroll_offset > 0) ||
4151 (offset < 0 && menu->scroll_offset < 0))
4153 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4154 GtkStateType upper_arrow_previous_state = priv->upper_arrow_state;
4155 GtkStateType lower_arrow_previous_state = priv->lower_arrow_state;
4157 if (!menu->upper_arrow_visible || !menu->lower_arrow_visible)
4158 gtk_widget_queue_draw (GTK_WIDGET (menu));
4160 menu->upper_arrow_visible = menu->lower_arrow_visible = TRUE;
4162 get_arrows_border (menu, &arrow_border);
4163 y += arrow_border.top;
4164 view_height -= arrow_border.top;
4165 view_height -= arrow_border.bottom;
4168 priv->upper_arrow_state = GTK_STATE_INSENSITIVE;
4169 else if (priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4170 priv->upper_arrow_state = menu->upper_arrow_prelight ?
4171 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4173 if (offset >= menu_height - view_height)
4174 priv->lower_arrow_state = GTK_STATE_INSENSITIVE;
4175 else if (priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4176 priv->lower_arrow_state = menu->lower_arrow_prelight ?
4177 GTK_STATE_PRELIGHT : GTK_STATE_NORMAL;
4179 if ((priv->upper_arrow_state != upper_arrow_previous_state) ||
4180 (priv->lower_arrow_state != lower_arrow_previous_state))
4181 gtk_widget_queue_draw (GTK_WIDGET (menu));
4183 if (upper_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4184 priv->upper_arrow_state == GTK_STATE_INSENSITIVE)
4186 /* At the upper border, possibly remove timeout */
4187 if (menu->scroll_step < 0)
4189 gtk_menu_stop_scrolling (menu);
4190 gtk_widget_queue_draw (GTK_WIDGET (menu));
4194 if (lower_arrow_previous_state != GTK_STATE_INSENSITIVE &&
4195 priv->lower_arrow_state == GTK_STATE_INSENSITIVE)
4197 /* At the lower border, possibly remove timeout */
4198 if (menu->scroll_step > 0)
4200 gtk_menu_stop_scrolling (menu);
4201 gtk_widget_queue_draw (GTK_WIDGET (menu));
4205 else if (menu->upper_arrow_visible || menu->lower_arrow_visible)
4209 menu->upper_arrow_visible = menu->lower_arrow_visible = FALSE;
4210 menu->upper_arrow_prelight = menu->lower_arrow_prelight = FALSE;
4212 gtk_menu_stop_scrolling (menu);
4213 gtk_widget_queue_draw (GTK_WIDGET (menu));
4216 else if (!menu->tearoff_active)
4218 gboolean last_visible;
4220 last_visible = menu->upper_arrow_visible;
4221 menu->upper_arrow_visible = offset > 0;
4223 /* upper_arrow_visible may have changed, so requery the border */
4224 get_arrows_border (menu, &arrow_border);
4225 view_height -= arrow_border.top;
4227 if ((last_visible != menu->upper_arrow_visible) &&
4228 !menu->upper_arrow_visible)
4230 menu->upper_arrow_prelight = FALSE;
4232 /* If we hid the upper arrow, possibly remove timeout */
4233 if (menu->scroll_step < 0)
4235 gtk_menu_stop_scrolling (menu);
4236 gtk_widget_queue_draw (GTK_WIDGET (menu));
4240 last_visible = menu->lower_arrow_visible;
4241 menu->lower_arrow_visible = offset < menu_height - view_height;
4243 /* lower_arrow_visible may have changed, so requery the border */
4244 get_arrows_border (menu, &arrow_border);
4245 view_height -= arrow_border.bottom;
4247 if ((last_visible != menu->lower_arrow_visible) &&
4248 !menu->lower_arrow_visible)
4250 menu->lower_arrow_prelight = FALSE;
4252 /* If we hid the lower arrow, possibly remove timeout */
4253 if (menu->scroll_step > 0)
4255 gtk_menu_stop_scrolling (menu);
4256 gtk_widget_queue_draw (GTK_WIDGET (menu));
4260 y += arrow_border.top;
4263 /* Scroll the menu: */
4264 if (GTK_WIDGET_REALIZED (menu))
4265 gdk_window_move (menu->bin_window, 0, -offset);
4267 if (GTK_WIDGET_REALIZED (menu))
4268 gdk_window_move_resize (menu->view_window,
4274 menu->scroll_offset = offset;
4278 compute_child_offset (GtkMenu *menu,
4279 GtkWidget *menu_item,
4282 gboolean *is_last_child)
4284 GtkMenuPrivate *priv = gtk_menu_get_private (menu);
4285 gint item_top_attach;
4286 gint item_bottom_attach;
4287 gint child_offset = 0;
4290 get_effective_child_attach (menu_item, NULL, NULL,
4291 &item_top_attach, &item_bottom_attach);
4293 /* there is a possibility that we get called before _size_request, so
4294 * check the height table for safety.
4296 if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
4299 /* when we have a row with only invisible children, it's height will
4300 * be zero, so there's no need to check WIDGET_VISIBLE here
4302 for (i = 0; i < item_top_attach; i++)
4303 child_offset += priv->heights[i];
4306 *is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
4308 *offset = child_offset;
4310 *height = priv->heights[item_top_attach];
4316 gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
4317 GtkWidget *menu_item)
4320 gint child_offset, child_height;
4324 gboolean last_child = 0;
4326 menu = GTK_MENU (menu_shell);
4328 /* We need to check if the selected item fully visible.
4329 * If not we need to scroll the menu so that it becomes fully
4333 if (compute_child_offset (menu, menu_item,
4334 &child_offset, &child_height, &last_child))
4336 guint vertical_padding;
4337 gboolean double_arrows;
4339 y = menu->scroll_offset;
4340 gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
4342 gtk_widget_style_get (GTK_WIDGET (menu),
4343 "vertical-padding", &vertical_padding,
4346 double_arrows = get_double_arrows (menu);
4348 height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness + 2*vertical_padding;
4350 if (child_offset < y)
4352 /* Ignore the enter event we might get if the pointer is on the menu
4354 menu_shell->ignore_enter = TRUE;
4355 gtk_menu_scroll_to (menu, child_offset);
4359 GtkBorder arrow_border;
4363 get_arrows_border (menu, &arrow_border);
4364 if (!menu->tearoff_active)
4365 arrow_height = arrow_border.top + arrow_border.bottom;
4367 if (child_offset + child_height > y + height - arrow_height)
4370 if ((!last_child && !menu->tearoff_active) || double_arrows)
4371 arrow_height += arrow_border.bottom;
4373 y = child_offset + child_height - height + arrow_height;
4374 if (((y > 0) && !menu->tearoff_active) || double_arrows)
4376 /* Need upper arrow */
4377 arrow_height += arrow_border.top;
4378 y = child_offset + child_height - height + arrow_height;
4380 /* Ignore the enter event we might get if the pointer is on the menu
4382 menu_shell->ignore_enter = TRUE;
4383 gtk_menu_scroll_to (menu, y);
4391 gtk_menu_select_item (GtkMenuShell *menu_shell,
4392 GtkWidget *menu_item)
4394 GtkMenu *menu = GTK_MENU (menu_shell);
4396 if (GTK_WIDGET_REALIZED (GTK_WIDGET (menu)))
4397 gtk_menu_scroll_item_visible (menu_shell, menu_item);
4399 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
4403 /* Reparent the menu, taking care of the refcounting
4405 * If unrealize is true we force a unrealize while reparenting the parent.
4406 * This can help eliminate flicker in some cases.
4408 * What happens is that when the menu is unrealized and then re-realized,
4409 * the allocations are as follows:
4411 * parent - 1x1 at (0,0)
4412 * child1 - 100x20 at (0,0)
4413 * child2 - 100x20 at (0,20)
4414 * child3 - 100x20 at (0,40)
4416 * That is, the parent is small but the children are full sized. Then,
4417 * when the queued_resize gets processed, the parent gets resized to
4420 * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
4421 * contains the following logic:
4423 * - if a move or resize operation on a window would change the clip
4424 * region on the children, then before the window is resized
4425 * the background for children is temporarily set to None, the
4426 * move/resize done, and the background for the children restored.
4428 * So, at the point where the parent is resized to final size, the
4429 * background for the children is temporarily None, and thus they
4430 * are not cleared to the background color and the previous background
4431 * (the image of the menu) is left in place.
4434 gtk_menu_reparent (GtkMenu *menu,
4435 GtkWidget *new_parent,
4438 GtkObject *object = GTK_OBJECT (menu);
4439 GtkWidget *widget = GTK_WIDGET (menu);
4440 gboolean was_floating = g_object_is_floating (object);
4442 g_object_ref_sink (object);
4446 g_object_ref (object);
4447 gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
4448 gtk_container_add (GTK_CONTAINER (new_parent), widget);
4449 g_object_unref (object);
4452 gtk_widget_reparent (GTK_WIDGET (menu), new_parent);
4455 g_object_force_floating (G_OBJECT (object));
4457 g_object_unref (object);
4461 gtk_menu_show_all (GtkWidget *widget)
4463 /* Show children, but not self. */
4464 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
4469 gtk_menu_hide_all (GtkWidget *widget)
4471 /* Hide children, but not self. */
4472 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
4476 * gtk_menu_set_screen:
4477 * @menu: a #GtkMenu.
4478 * @screen: a #GdkScreen, or %NULL if the screen should be
4479 * determined by the widget the menu is attached to.
4481 * Sets the #GdkScreen on which the menu will be displayed.
4486 gtk_menu_set_screen (GtkMenu *menu,
4489 g_return_if_fail (GTK_IS_MENU (menu));
4490 g_return_if_fail (!screen || GDK_IS_SCREEN (screen));
4492 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-screen"), screen);
4496 menu_change_screen (menu, screen);
4500 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
4502 attach_widget_screen_changed (attach_widget, NULL, menu);
4508 * @menu: a #GtkMenu.
4509 * @child: a #GtkMenuItem.
4510 * @left_attach: The column number to attach the left side of the item to.
4511 * @right_attach: The column number to attach the right side of the item to.
4512 * @top_attach: The row number to attach the top of the item to.
4513 * @bottom_attach: The row number to attach the bottom of the item to.
4515 * Adds a new #GtkMenuItem to a (table) menu. The number of 'cells' that
4516 * an item will occupy is specified by @left_attach, @right_attach,
4517 * @top_attach and @bottom_attach. These each represent the leftmost,
4518 * rightmost, uppermost and lower column and row numbers of the table.
4519 * (Columns and rows are indexed from zero).
4521 * Note that this function is not related to gtk_menu_detach().
4526 gtk_menu_attach (GtkMenu *menu,
4531 guint bottom_attach)
4533 GtkMenuShell *menu_shell;
4535 g_return_if_fail (GTK_IS_MENU (menu));
4536 g_return_if_fail (GTK_IS_MENU_ITEM (child));
4537 g_return_if_fail (child->parent == NULL ||
4538 child->parent == GTK_WIDGET (menu));
4539 g_return_if_fail (left_attach < right_attach);
4540 g_return_if_fail (top_attach < bottom_attach);
4542 menu_shell = GTK_MENU_SHELL (menu);
4546 AttachInfo *ai = get_attach_info (child);
4548 ai->left_attach = left_attach;
4549 ai->right_attach = right_attach;
4550 ai->top_attach = top_attach;
4551 ai->bottom_attach = bottom_attach;
4553 menu_shell->children = g_list_append (menu_shell->children, child);
4555 gtk_widget_set_parent (child, GTK_WIDGET (menu));
4557 menu_queue_resize (menu);
4561 gtk_container_child_set (GTK_CONTAINER (child->parent), child,
4562 "left-attach", left_attach,
4563 "right-attach", right_attach,
4564 "top-attach", top_attach,
4565 "bottom-attach", bottom_attach,
4571 gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
4575 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
4576 "gtk-menu-popup-delay", &popup_delay,
4583 find_child_containing (GtkMenuShell *menu_shell,
4591 /* find a child which includes the area given by
4592 * left, right, top, bottom.
4595 for (list = menu_shell->children; list; list = list->next)
4599 if (!_gtk_menu_item_is_selectable (list->data))
4602 get_effective_child_attach (list->data, &l, &r, &t, &b);
4604 if (l <= left && right <= r
4605 && t <= top && bottom <= b)
4606 return GTK_WIDGET (list->data);
4613 gtk_menu_move_current (GtkMenuShell *menu_shell,
4614 GtkMenuDirectionType direction)
4616 GtkMenu *menu = GTK_MENU (menu_shell);
4619 GtkWidget *match = NULL;
4621 if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
4625 case GTK_MENU_DIR_CHILD:
4626 direction = GTK_MENU_DIR_PARENT;
4628 case GTK_MENU_DIR_PARENT:
4629 direction = GTK_MENU_DIR_CHILD;
4635 /* use special table menu key bindings */
4636 if (menu_shell->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
4638 get_effective_child_attach (menu_shell->active_menu_item, &l, &r, &t, &b);
4640 if (direction == GTK_MENU_DIR_NEXT)
4642 for (i = b; i < gtk_menu_get_n_rows (menu); i++)
4644 match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
4652 for (i = 0; i < t; i++)
4654 match = find_child_containing (menu_shell,
4655 l, l + 1, i, i + 1);
4661 else if (direction == GTK_MENU_DIR_PREV)
4663 for (i = t; i > 0; i--)
4665 match = find_child_containing (menu_shell, l, l + 1, i - 1, i);
4673 for (i = gtk_menu_get_n_rows (menu); i > b; i--)
4675 match = find_child_containing (menu_shell,
4676 l, l + 1, i - 1, i);
4682 else if (direction == GTK_MENU_DIR_PARENT)
4684 /* we go one left if possible */
4686 match = find_child_containing (menu_shell, l - 1, l, t, t + 1);
4690 GtkWidget *parent = menu_shell->parent_menu_shell;
4693 || g_list_length (GTK_MENU_SHELL (parent)->children) <= 1)
4694 match = menu_shell->active_menu_item;
4697 else if (direction == GTK_MENU_DIR_CHILD)
4699 /* we go one right if possible */
4700 if (r < gtk_menu_get_n_columns (menu))
4701 match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
4705 GtkWidget *parent = menu_shell->parent_menu_shell;
4707 if (! GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu &&
4709 g_list_length (GTK_MENU_SHELL (parent)->children) <= 1))
4710 match = menu_shell->active_menu_item;
4716 gtk_menu_shell_select_item (menu_shell, match);
4721 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
4725 get_visible_size (GtkMenu *menu)
4727 GtkWidget *widget = GTK_WIDGET (menu);
4728 GtkContainer *container = GTK_CONTAINER (menu);
4730 gint menu_height = (widget->allocation.height
4731 - 2 * (container->border_width
4732 + widget->style->ythickness));
4734 if (!menu->tearoff_active)
4736 GtkBorder arrow_border;
4738 get_arrows_border (menu, &arrow_border);
4739 menu_height -= arrow_border.top;
4740 menu_height -= arrow_border.bottom;
4746 /* Find the sensitive on-screen child containing @y, or if none,
4747 * the nearest selectable onscreen child. (%NULL if none)
4750 child_at (GtkMenu *menu,
4753 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4754 GtkWidget *child = NULL;
4755 gint child_offset = 0;
4758 gint lower, upper; /* Onscreen bounds */
4760 menu_height = get_visible_size (menu);
4761 lower = menu->scroll_offset;
4762 upper = menu->scroll_offset + menu_height;
4764 for (children = menu_shell->children; children; children = children->next)
4766 if (GTK_WIDGET_VISIBLE (children->data))
4768 GtkRequisition child_requisition;
4770 gtk_widget_size_request (children->data, &child_requisition);
4772 if (_gtk_menu_item_is_selectable (children->data) &&
4773 child_offset >= lower &&
4774 child_offset + child_requisition.height <= upper)
4776 child = children->data;
4778 if (child_offset + child_requisition.height > y &&
4779 !GTK_IS_TEAROFF_MENU_ITEM (child))
4783 child_offset += child_requisition.height;
4791 get_menu_height (GtkMenu *menu)
4794 GtkWidget *widget = GTK_WIDGET (menu);
4796 height = widget->requisition.height;
4797 height -= (GTK_CONTAINER (widget)->border_width + widget->style->ythickness) * 2;
4799 if (!menu->tearoff_active)
4801 GtkBorder arrow_border;
4803 get_arrows_border (menu, &arrow_border);
4804 height -= arrow_border.top;
4805 height -= arrow_border.bottom;
4812 gtk_menu_real_move_scroll (GtkMenu *menu,
4815 gint page_size = get_visible_size (menu);
4816 gint end_position = get_menu_height (menu);
4817 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4821 case GTK_SCROLL_PAGE_UP:
4822 case GTK_SCROLL_PAGE_DOWN:
4826 gint child_offset = 0;
4827 gboolean old_upper_arrow_visible;
4830 if (type == GTK_SCROLL_PAGE_UP)
4835 if (menu_shell->active_menu_item)
4839 compute_child_offset (menu, menu_shell->active_menu_item,
4840 &child_offset, &child_height, NULL);
4841 child_offset += child_height / 2;
4844 menu_shell->ignore_enter = TRUE;
4845 old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4846 old_offset = menu->scroll_offset;
4848 new_offset = menu->scroll_offset + step;
4849 new_offset = CLAMP (new_offset, 0, end_position - page_size);
4851 gtk_menu_scroll_to (menu, new_offset);
4853 if (menu_shell->active_menu_item)
4855 GtkWidget *new_child;
4856 gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
4857 GtkBorder arrow_border;
4859 get_arrows_border (menu, &arrow_border);
4861 if (menu->scroll_offset != old_offset)
4862 step = menu->scroll_offset - old_offset;
4864 step -= (new_upper_arrow_visible - old_upper_arrow_visible) * arrow_border.top;
4866 new_child = child_at (menu, child_offset + step);
4868 gtk_menu_shell_select_item (menu_shell, new_child);
4872 case GTK_SCROLL_START:
4873 /* Ignore the enter event we might get if the pointer is on the menu
4875 menu_shell->ignore_enter = TRUE;
4876 gtk_menu_scroll_to (menu, 0);
4877 gtk_menu_shell_select_first (menu_shell, TRUE);
4879 case GTK_SCROLL_END:
4880 /* Ignore the enter event we might get if the pointer is on the menu
4882 menu_shell->ignore_enter = TRUE;
4883 gtk_menu_scroll_to (menu, end_position - page_size);
4884 _gtk_menu_shell_select_last (menu_shell, TRUE);
4893 * gtk_menu_set_monitor:
4895 * @monitor_num: the number of the monitor on which the menu should
4898 * Informs GTK+ on which monitor a menu should be popped up.
4899 * See gdk_screen_get_monitor_geometry().
4901 * This function should be called from a #GtkMenuPositionFunc if the
4902 * menu should not appear on the same monitor as the pointer. This
4903 * information can't be reliably inferred from the coordinates returned
4904 * by a #GtkMenuPositionFunc, since, for very long menus, these coordinates
4905 * may extend beyond the monitor boundaries or even the screen boundaries.
4910 gtk_menu_set_monitor (GtkMenu *menu,
4913 GtkMenuPrivate *priv;
4914 g_return_if_fail (GTK_IS_MENU (menu));
4916 priv = gtk_menu_get_private (menu);
4918 priv->monitor_num = monitor_num;
4922 * gtk_menu_get_for_attach_widget:
4923 * @widget: a #GtkWidget
4925 * Returns a list of the menus which are attached to this widget.
4926 * This list is owned by GTK+ and must not be modified.
4928 * Return value: the list of menus attached to his widget.
4933 gtk_menu_get_for_attach_widget (GtkWidget *widget)
4937 g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
4939 list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
4944 gtk_menu_grab_notify (GtkWidget *widget,
4945 gboolean was_grabbed)
4947 GtkWidget *toplevel;
4948 GtkWindowGroup *group;
4951 toplevel = gtk_widget_get_toplevel (widget);
4952 group = gtk_window_get_group (GTK_WINDOW (toplevel));
4953 grab = _gtk_window_group_get_current_grab (group);
4957 if (GTK_MENU_SHELL (widget)->active && !GTK_IS_MENU_SHELL (grab))
4958 gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
4962 #define __GTK_MENU_C__
4963 #include "gtkaliasdef.c"