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, see <http://www.gnu.org/licenses/>.
19 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
20 * file for a list of people on the GTK+ Team. See the ChangeLog
21 * files for a list of changes. These files are distributed with
22 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
27 * @Short_description: A menu widget
30 * A #GtkMenu is a #GtkMenuShell that implements a drop down menu
31 * consisting of a list of #GtkMenuItem objects which can be navigated
32 * and activated by the user to perform application functions.
34 * A #GtkMenu is most commonly dropped down by activating a
35 * #GtkMenuItem in a #GtkMenuBar or popped up by activating a
36 * #GtkMenuItem in another #GtkMenu.
38 * A #GtkMenu can also be popped up by activating a #GtkOptionMenu.
39 * Other composite widgets such as the #GtkNotebook can pop up a
42 * Applications can display a #GtkMenu as a popup menu by calling the
43 * gtk_menu_popup() function. The example below shows how an application
44 * can pop up a menu when the 3rd mouse button is pressed.
47 * <title>Connecting the popup signal handler.</title>
49 * /<!---->* connect our handler which will popup the menu *<!---->/
50 * g_signal_connect_swapped (window, "button_press_event",
51 * G_CALLBACK (my_popup_handler), menu);
56 * <title>Signal handler which displays a popup menu.</title>
59 * my_popup_handler (GtkWidget *widget, GdkEvent *event)
62 * GdkEventButton *event_button;
64 * g_return_val_if_fail (widget != NULL, FALSE);
65 * g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
66 * g_return_val_if_fail (event != NULL, FALSE);
68 * /<!---->* The "widget" is the menu that was supplied when
69 * * g_signal_connect_swapped() was called.
71 * menu = GTK_MENU (widget);
73 * if (event->type == GDK_BUTTON_PRESS)
75 * event_button = (GdkEventButton *) event;
76 * if (event_button->button == GDK_BUTTON_SECONDARY)
78 * gtk_menu_popup (menu, NULL, NULL, NULL, NULL,
79 * event_button->button, event_button->time);
94 #include <gobject/gvaluecollector.h>
96 #include "gtkaccellabel.h"
97 #include "gtkaccelmap.h"
98 #include "gtkbindings.h"
99 #include "gtkcheckmenuitem.h"
101 #include "gtkmarshalers.h"
102 #include "gtkmenuprivate.h"
103 #include "gtkmenuitemprivate.h"
104 #include "gtkmenushellprivate.h"
105 #include "gtkwindow.h"
107 #include "gtkscrollbar.h"
108 #include "gtksettings.h"
109 #include "gtkprivate.h"
110 #include "gtkwidgetprivate.h"
113 #include "gtktypebuiltins.h"
114 #include "gtkwidgetprivate.h"
116 #include "deprecated/gtktearoffmenuitem.h"
119 #include "a11y/gtkmenuaccessible.h"
121 #define NAVIGATION_REGION_OVERSHOOT 50 /* How much the navigation region
122 * extends below the submenu
125 #define MENU_SCROLL_STEP1 8
126 #define MENU_SCROLL_STEP2 15
127 #define MENU_SCROLL_FAST_ZONE 8
128 #define MENU_SCROLL_TIMEOUT1 50
129 #define MENU_SCROLL_TIMEOUT2 20
131 #define ATTACH_INFO_KEY "gtk-menu-child-attach-info-key"
132 #define ATTACHED_MENUS "gtk-attached-menus"
134 typedef struct _GtkMenuAttachData GtkMenuAttachData;
135 typedef struct _GtkMenuPopdownData GtkMenuPopdownData;
137 struct _GtkMenuAttachData
139 GtkWidget *attach_widget;
140 GtkMenuDetachFunc detacher;
143 struct _GtkMenuPopdownData
155 gint effective_left_attach;
156 gint effective_right_attach;
157 gint effective_top_attach;
158 gint effective_bottom_attach;
175 PROP_RESERVE_TOGGLE_SIZE
180 CHILD_PROP_LEFT_ATTACH,
181 CHILD_PROP_RIGHT_ATTACH,
182 CHILD_PROP_TOP_ATTACH,
183 CHILD_PROP_BOTTOM_ATTACH
186 static void gtk_menu_set_property (GObject *object,
190 static void gtk_menu_get_property (GObject *object,
194 static void gtk_menu_set_child_property(GtkContainer *container,
199 static void gtk_menu_get_child_property(GtkContainer *container,
204 static void gtk_menu_destroy (GtkWidget *widget);
205 static void gtk_menu_realize (GtkWidget *widget);
206 static void gtk_menu_unrealize (GtkWidget *widget);
207 static void gtk_menu_size_allocate (GtkWidget *widget,
208 GtkAllocation *allocation);
209 static void gtk_menu_show (GtkWidget *widget);
210 static gboolean gtk_menu_draw (GtkWidget *widget,
212 static gboolean gtk_menu_key_press (GtkWidget *widget,
214 static gboolean gtk_menu_scroll (GtkWidget *widget,
215 GdkEventScroll *event);
216 static gboolean gtk_menu_button_press (GtkWidget *widget,
217 GdkEventButton *event);
218 static gboolean gtk_menu_button_release (GtkWidget *widget,
219 GdkEventButton *event);
220 static gboolean gtk_menu_motion_notify (GtkWidget *widget,
221 GdkEventMotion *event);
222 static gboolean gtk_menu_enter_notify (GtkWidget *widget,
223 GdkEventCrossing *event);
224 static gboolean gtk_menu_leave_notify (GtkWidget *widget,
225 GdkEventCrossing *event);
226 static void gtk_menu_scroll_to (GtkMenu *menu,
228 static void gtk_menu_grab_notify (GtkWidget *widget,
229 gboolean was_grabbed);
230 static gboolean gtk_menu_captured_event (GtkWidget *widget,
234 static void gtk_menu_stop_scrolling (GtkMenu *menu);
235 static void gtk_menu_remove_scroll_timeout (GtkMenu *menu);
236 static gboolean gtk_menu_scroll_timeout (gpointer data);
238 static void gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
239 GtkWidget *menu_item);
240 static void gtk_menu_select_item (GtkMenuShell *menu_shell,
241 GtkWidget *menu_item);
242 static void gtk_menu_real_insert (GtkMenuShell *menu_shell,
245 static void gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
247 static void gtk_menu_handle_scrolling (GtkMenu *menu,
252 static void gtk_menu_set_tearoff_hints (GtkMenu *menu,
254 static void gtk_menu_style_updated (GtkWidget *widget);
255 static gboolean gtk_menu_focus (GtkWidget *widget,
256 GtkDirectionType direction);
257 static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
258 static void gtk_menu_move_current (GtkMenuShell *menu_shell,
259 GtkMenuDirectionType direction);
260 static void gtk_menu_real_move_scroll (GtkMenu *menu,
263 static void gtk_menu_stop_navigating_submenu (GtkMenu *menu);
264 static gboolean gtk_menu_stop_navigating_submenu_cb (gpointer user_data);
265 static gboolean gtk_menu_navigating_submenu (GtkMenu *menu,
268 static void gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
269 GtkMenuItem *menu_item,
270 GdkEventCrossing *event);
272 static void gtk_menu_deactivate (GtkMenuShell *menu_shell);
273 static void gtk_menu_show_all (GtkWidget *widget);
274 static void gtk_menu_position (GtkMenu *menu,
275 gboolean set_scroll_offset);
276 static void gtk_menu_reparent (GtkMenu *menu,
277 GtkWidget *new_parent,
279 static void gtk_menu_remove (GtkContainer *menu,
282 static void gtk_menu_update_title (GtkMenu *menu);
284 static void menu_grab_transfer_window_destroy (GtkMenu *menu);
285 static GdkWindow *menu_grab_transfer_window_get (GtkMenu *menu);
287 static gboolean gtk_menu_real_can_activate_accel (GtkWidget *widget,
289 static void _gtk_menu_refresh_accel_paths (GtkMenu *menu,
290 gboolean group_changed);
292 static void gtk_menu_get_preferred_width (GtkWidget *widget,
295 static void gtk_menu_get_preferred_height (GtkWidget *widget,
298 static void gtk_menu_get_preferred_height_for_width (GtkWidget *widget,
304 static const gchar attach_data_key[] = "gtk-menu-attach-data";
306 static guint menu_signals[LAST_SIGNAL] = { 0 };
308 G_DEFINE_TYPE (GtkMenu, gtk_menu, GTK_TYPE_MENU_SHELL)
311 menu_queue_resize (GtkMenu *menu)
313 GtkMenuPrivate *priv = menu->priv;
315 priv->have_layout = FALSE;
316 gtk_widget_queue_resize (GTK_WIDGET (menu));
320 attach_info_free (AttachInfo *info)
322 g_slice_free (AttachInfo, info);
326 get_attach_info (GtkWidget *child)
328 GObject *object = G_OBJECT (child);
329 AttachInfo *ai = g_object_get_data (object, ATTACH_INFO_KEY);
333 ai = g_slice_new0 (AttachInfo);
334 g_object_set_data_full (object, I_(ATTACH_INFO_KEY), ai,
335 (GDestroyNotify) attach_info_free);
342 is_grid_attached (AttachInfo *ai)
344 return (ai->left_attach >= 0 &&
345 ai->right_attach >= 0 &&
346 ai->top_attach >= 0 &&
347 ai->bottom_attach >= 0);
351 menu_ensure_layout (GtkMenu *menu)
353 GtkMenuPrivate *priv = menu->priv;
355 if (!priv->have_layout)
357 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
361 gint max_right_attach;
362 gint max_bottom_attach;
364 /* Find extents of gridded portion
366 max_right_attach = 1;
367 max_bottom_attach = 0;
369 for (l = menu_shell->priv->children; l; l = l->next)
371 GtkWidget *child = l->data;
372 AttachInfo *ai = get_attach_info (child);
374 if (is_grid_attached (ai))
376 max_bottom_attach = MAX (max_bottom_attach, ai->bottom_attach);
377 max_right_attach = MAX (max_right_attach, ai->right_attach);
381 /* Find empty rows */
382 row_occupied = g_malloc0 (max_bottom_attach);
384 for (l = menu_shell->priv->children; l; l = l->next)
386 GtkWidget *child = l->data;
387 AttachInfo *ai = get_attach_info (child);
389 if (is_grid_attached (ai))
393 for (i = ai->top_attach; i < ai->bottom_attach; i++)
394 row_occupied[i] = TRUE;
398 /* Lay non-grid-items out in those rows
401 for (l = menu_shell->priv->children; l; l = l->next)
403 GtkWidget *child = l->data;
404 AttachInfo *ai = get_attach_info (child);
406 if (!is_grid_attached (ai))
408 while (current_row < max_bottom_attach && row_occupied[current_row])
411 ai->effective_left_attach = 0;
412 ai->effective_right_attach = max_right_attach;
413 ai->effective_top_attach = current_row;
414 ai->effective_bottom_attach = current_row + 1;
420 ai->effective_left_attach = ai->left_attach;
421 ai->effective_right_attach = ai->right_attach;
422 ai->effective_top_attach = ai->top_attach;
423 ai->effective_bottom_attach = ai->bottom_attach;
427 g_free (row_occupied);
429 priv->n_rows = MAX (current_row, max_bottom_attach);
430 priv->n_columns = max_right_attach;
431 priv->have_layout = TRUE;
437 gtk_menu_get_n_columns (GtkMenu *menu)
439 GtkMenuPrivate *priv = menu->priv;
441 menu_ensure_layout (menu);
443 return priv->n_columns;
447 gtk_menu_get_n_rows (GtkMenu *menu)
449 GtkMenuPrivate *priv = menu->priv;
451 menu_ensure_layout (menu);
457 get_effective_child_attach (GtkWidget *child,
463 GtkMenu *menu = GTK_MENU (gtk_widget_get_parent (child));
466 menu_ensure_layout (menu);
468 ai = get_attach_info (child);
471 *l = ai->effective_left_attach;
473 *r = ai->effective_right_attach;
475 *t = ai->effective_top_attach;
477 *b = ai->effective_bottom_attach;
482 gtk_menu_class_init (GtkMenuClass *class)
484 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
485 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
486 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
487 GtkMenuShellClass *menu_shell_class = GTK_MENU_SHELL_CLASS (class);
488 GtkBindingSet *binding_set;
490 gobject_class->set_property = gtk_menu_set_property;
491 gobject_class->get_property = gtk_menu_get_property;
493 widget_class->destroy = gtk_menu_destroy;
494 widget_class->realize = gtk_menu_realize;
495 widget_class->unrealize = gtk_menu_unrealize;
496 widget_class->size_allocate = gtk_menu_size_allocate;
497 widget_class->show = gtk_menu_show;
498 widget_class->draw = gtk_menu_draw;
499 widget_class->scroll_event = gtk_menu_scroll;
500 widget_class->key_press_event = gtk_menu_key_press;
501 widget_class->button_press_event = gtk_menu_button_press;
502 widget_class->button_release_event = gtk_menu_button_release;
503 widget_class->motion_notify_event = gtk_menu_motion_notify;
504 widget_class->show_all = gtk_menu_show_all;
505 widget_class->enter_notify_event = gtk_menu_enter_notify;
506 widget_class->leave_notify_event = gtk_menu_leave_notify;
507 widget_class->style_updated = gtk_menu_style_updated;
508 widget_class->focus = gtk_menu_focus;
509 widget_class->can_activate_accel = gtk_menu_real_can_activate_accel;
510 widget_class->grab_notify = gtk_menu_grab_notify;
511 widget_class->get_preferred_width = gtk_menu_get_preferred_width;
512 widget_class->get_preferred_height = gtk_menu_get_preferred_height;
513 widget_class->get_preferred_height_for_width = gtk_menu_get_preferred_height_for_width;
515 container_class->remove = gtk_menu_remove;
516 container_class->get_child_property = gtk_menu_get_child_property;
517 container_class->set_child_property = gtk_menu_set_child_property;
519 menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
520 menu_shell_class->deactivate = gtk_menu_deactivate;
521 menu_shell_class->select_item = gtk_menu_select_item;
522 menu_shell_class->insert = gtk_menu_real_insert;
523 menu_shell_class->get_popup_delay = gtk_menu_get_popup_delay;
524 menu_shell_class->move_current = gtk_menu_move_current;
527 * GtkMenu::move-scroll:
529 * @scroll_type: a #GtkScrollType
531 menu_signals[MOVE_SCROLL] =
532 g_signal_new_class_handler (I_("move-scroll"),
533 G_OBJECT_CLASS_TYPE (gobject_class),
534 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
535 G_CALLBACK (gtk_menu_real_move_scroll),
537 _gtk_marshal_VOID__ENUM,
539 GTK_TYPE_SCROLL_TYPE);
544 * The index of the currently selected menu item, or -1 if no
545 * menu item is selected.
549 g_object_class_install_property (gobject_class,
551 g_param_spec_int ("active",
553 P_("The currently selected menu item"),
555 GTK_PARAM_READWRITE));
558 * GtkMenu:accel-group:
560 * The accel group holding accelerators for the menu.
564 g_object_class_install_property (gobject_class,
566 g_param_spec_object ("accel-group",
568 P_("The accel group holding accelerators for the menu"),
569 GTK_TYPE_ACCEL_GROUP,
570 GTK_PARAM_READWRITE));
573 * GtkMenu:accel-path:
575 * An accel path used to conveniently construct accel paths of child items.
579 g_object_class_install_property (gobject_class,
581 g_param_spec_string ("accel-path",
583 P_("An accel path used to conveniently construct accel paths of child items"),
585 GTK_PARAM_READWRITE));
588 * GtkMenu:attach-widget:
590 * The widget the menu is attached to. Setting this property attaches
591 * the menu without a #GtkMenuDetachFunc. If you need to use a detacher,
592 * use gtk_menu_attach_to_widget() directly.
596 g_object_class_install_property (gobject_class,
598 g_param_spec_object ("attach-widget",
600 P_("The widget the menu is attached to"),
602 GTK_PARAM_READWRITE));
604 g_object_class_install_property (gobject_class,
606 g_param_spec_string ("tearoff-title",
608 P_("A title that may be displayed by the window manager when this menu is torn-off"),
610 GTK_PARAM_READWRITE));
613 * GtkMenu:tearoff-state:
615 * A boolean that indicates whether the menu is torn-off.
619 g_object_class_install_property (gobject_class,
621 g_param_spec_boolean ("tearoff-state",
623 P_("A boolean that indicates whether the menu is torn-off"),
625 GTK_PARAM_READWRITE));
630 * The monitor the menu will be popped up on.
634 g_object_class_install_property (gobject_class,
636 g_param_spec_int ("monitor",
638 P_("The monitor the menu will be popped up on"),
640 GTK_PARAM_READWRITE));
642 gtk_widget_class_install_style_property (widget_class,
643 g_param_spec_int ("vertical-padding",
644 P_("Vertical Padding"),
645 P_("Extra space at the top and bottom of the menu"),
649 GTK_PARAM_READABLE));
652 * GtkMenu:reserve-toggle-size:
654 * A boolean that indicates whether the menu reserves space for
655 * toggles and icons, regardless of their actual presence.
657 * This property should only be changed from its default value
658 * for special-purposes such as tabular menus. Regular menus that
659 * are connected to a menu bar or context menus should reserve
660 * toggle space for consistency.
664 g_object_class_install_property (gobject_class,
665 PROP_RESERVE_TOGGLE_SIZE,
666 g_param_spec_boolean ("reserve-toggle-size",
667 P_("Reserve Toggle Size"),
668 P_("A boolean that indicates whether the menu reserves space for toggles and icons"),
670 GTK_PARAM_READWRITE));
672 gtk_widget_class_install_style_property (widget_class,
673 g_param_spec_int ("horizontal-padding",
674 P_("Horizontal Padding"),
675 P_("Extra space at the left and right edges of the menu"),
679 GTK_PARAM_READABLE));
681 gtk_widget_class_install_style_property (widget_class,
682 g_param_spec_int ("vertical-offset",
683 P_("Vertical Offset"),
684 P_("When the menu is a submenu, position it this number of pixels offset vertically"),
688 GTK_PARAM_READABLE));
690 gtk_widget_class_install_style_property (widget_class,
691 g_param_spec_int ("horizontal-offset",
692 P_("Horizontal Offset"),
693 P_("When the menu is a submenu, position it this number of pixels offset horizontally"),
697 GTK_PARAM_READABLE));
699 gtk_widget_class_install_style_property (widget_class,
700 g_param_spec_boolean ("double-arrows",
702 P_("When scrolling, always show both arrows."),
704 GTK_PARAM_READABLE));
707 * GtkMenu:arrow-placement:
709 * Indicates where scroll arrows should be placed.
713 gtk_widget_class_install_style_property (widget_class,
714 g_param_spec_enum ("arrow-placement",
715 P_("Arrow Placement"),
716 P_("Indicates where scroll arrows should be placed"),
717 GTK_TYPE_ARROW_PLACEMENT,
719 GTK_PARAM_READABLE));
721 gtk_container_class_install_child_property (container_class,
722 CHILD_PROP_LEFT_ATTACH,
723 g_param_spec_int ("left-attach",
725 P_("The column number to attach the left side of the child to"),
727 GTK_PARAM_READWRITE));
729 gtk_container_class_install_child_property (container_class,
730 CHILD_PROP_RIGHT_ATTACH,
731 g_param_spec_int ("right-attach",
733 P_("The column number to attach the right side of the child to"),
735 GTK_PARAM_READWRITE));
737 gtk_container_class_install_child_property (container_class,
738 CHILD_PROP_TOP_ATTACH,
739 g_param_spec_int ("top-attach",
741 P_("The row number to attach the top of the child to"),
743 GTK_PARAM_READWRITE));
745 gtk_container_class_install_child_property (container_class,
746 CHILD_PROP_BOTTOM_ATTACH,
747 g_param_spec_int ("bottom-attach",
749 P_("The row number to attach the bottom of the child to"),
751 GTK_PARAM_READWRITE));
754 * GtkMenu:arrow-scaling
756 * Arbitrary constant to scale down the size of the scroll arrow.
760 gtk_widget_class_install_style_property (widget_class,
761 g_param_spec_float ("arrow-scaling",
763 P_("Arbitrary constant to scale down the size of the scroll arrow"),
765 GTK_PARAM_READABLE));
767 binding_set = gtk_binding_set_by_class (class);
768 gtk_binding_entry_add_signal (binding_set,
770 I_("move-current"), 1,
771 GTK_TYPE_MENU_DIRECTION_TYPE,
773 gtk_binding_entry_add_signal (binding_set,
776 GTK_TYPE_MENU_DIRECTION_TYPE,
778 gtk_binding_entry_add_signal (binding_set,
781 GTK_TYPE_MENU_DIRECTION_TYPE,
783 gtk_binding_entry_add_signal (binding_set,
786 GTK_TYPE_MENU_DIRECTION_TYPE,
788 gtk_binding_entry_add_signal (binding_set,
791 GTK_TYPE_MENU_DIRECTION_TYPE,
792 GTK_MENU_DIR_PARENT);
793 gtk_binding_entry_add_signal (binding_set,
796 GTK_TYPE_MENU_DIRECTION_TYPE,
797 GTK_MENU_DIR_PARENT);
798 gtk_binding_entry_add_signal (binding_set,
801 GTK_TYPE_MENU_DIRECTION_TYPE,
803 gtk_binding_entry_add_signal (binding_set,
806 GTK_TYPE_MENU_DIRECTION_TYPE,
808 gtk_binding_entry_add_signal (binding_set,
811 GTK_TYPE_SCROLL_TYPE,
813 gtk_binding_entry_add_signal (binding_set,
816 GTK_TYPE_SCROLL_TYPE,
818 gtk_binding_entry_add_signal (binding_set,
821 GTK_TYPE_SCROLL_TYPE,
823 gtk_binding_entry_add_signal (binding_set,
826 GTK_TYPE_SCROLL_TYPE,
828 gtk_binding_entry_add_signal (binding_set,
831 GTK_TYPE_SCROLL_TYPE,
833 gtk_binding_entry_add_signal (binding_set,
834 GDK_KEY_KP_Page_Up, 0,
836 GTK_TYPE_SCROLL_TYPE,
838 gtk_binding_entry_add_signal (binding_set,
839 GDK_KEY_Page_Down, 0,
841 GTK_TYPE_SCROLL_TYPE,
842 GTK_SCROLL_PAGE_DOWN);
843 gtk_binding_entry_add_signal (binding_set,
844 GDK_KEY_KP_Page_Down, 0,
846 GTK_TYPE_SCROLL_TYPE,
847 GTK_SCROLL_PAGE_DOWN);
849 g_type_class_add_private (gobject_class, sizeof (GtkMenuPrivate));
851 gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_MENU_ACCESSIBLE);
856 gtk_menu_set_property (GObject *object,
861 GtkMenu *menu = GTK_MENU (object);
866 gtk_menu_set_active (menu, g_value_get_int (value));
868 case PROP_ACCEL_GROUP:
869 gtk_menu_set_accel_group (menu, g_value_get_object (value));
871 case PROP_ACCEL_PATH:
872 gtk_menu_set_accel_path (menu, g_value_get_string (value));
874 case PROP_ATTACH_WIDGET:
878 widget = gtk_menu_get_attach_widget (menu);
880 gtk_menu_detach (menu);
882 widget = (GtkWidget*) g_value_get_object (value);
884 gtk_menu_attach_to_widget (menu, widget, NULL);
887 case PROP_TEAROFF_STATE:
888 gtk_menu_set_tearoff_state (menu, g_value_get_boolean (value));
890 case PROP_TEAROFF_TITLE:
891 gtk_menu_set_title (menu, g_value_get_string (value));
894 gtk_menu_set_monitor (menu, g_value_get_int (value));
896 case PROP_RESERVE_TOGGLE_SIZE:
897 gtk_menu_set_reserve_toggle_size (menu, g_value_get_boolean (value));
900 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
906 gtk_menu_get_property (GObject *object,
911 GtkMenu *menu = GTK_MENU (object);
916 g_value_set_int (value, g_list_index (GTK_MENU_SHELL (menu)->priv->children, gtk_menu_get_active (menu)));
918 case PROP_ACCEL_GROUP:
919 g_value_set_object (value, gtk_menu_get_accel_group (menu));
921 case PROP_ACCEL_PATH:
922 g_value_set_string (value, gtk_menu_get_accel_path (menu));
924 case PROP_ATTACH_WIDGET:
925 g_value_set_object (value, gtk_menu_get_attach_widget (menu));
927 case PROP_TEAROFF_STATE:
928 g_value_set_boolean (value, gtk_menu_get_tearoff_state (menu));
930 case PROP_TEAROFF_TITLE:
931 g_value_set_string (value, gtk_menu_get_title (menu));
934 g_value_set_int (value, gtk_menu_get_monitor (menu));
936 case PROP_RESERVE_TOGGLE_SIZE:
937 g_value_set_boolean (value, gtk_menu_get_reserve_toggle_size (menu));
940 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
946 gtk_menu_set_child_property (GtkContainer *container,
952 GtkMenu *menu = GTK_MENU (container);
953 AttachInfo *ai = get_attach_info (child);
957 case CHILD_PROP_LEFT_ATTACH:
958 ai->left_attach = g_value_get_int (value);
960 case CHILD_PROP_RIGHT_ATTACH:
961 ai->right_attach = g_value_get_int (value);
963 case CHILD_PROP_TOP_ATTACH:
964 ai->top_attach = g_value_get_int (value);
966 case CHILD_PROP_BOTTOM_ATTACH:
967 ai->bottom_attach = g_value_get_int (value);
971 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
975 menu_queue_resize (menu);
979 gtk_menu_get_child_property (GtkContainer *container,
985 AttachInfo *ai = get_attach_info (child);
989 case CHILD_PROP_LEFT_ATTACH:
990 g_value_set_int (value, ai->left_attach);
992 case CHILD_PROP_RIGHT_ATTACH:
993 g_value_set_int (value, ai->right_attach);
995 case CHILD_PROP_TOP_ATTACH:
996 g_value_set_int (value, ai->top_attach);
998 case CHILD_PROP_BOTTOM_ATTACH:
999 g_value_set_int (value, ai->bottom_attach);
1003 GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
1009 gtk_menu_window_event (GtkWidget *window,
1013 gboolean handled = FALSE;
1015 g_object_ref (window);
1016 g_object_ref (menu);
1018 switch (event->type)
1021 case GDK_KEY_RELEASE:
1022 handled = gtk_widget_event (menu, event);
1024 case GDK_WINDOW_STATE:
1025 /* Window for the menu has been closed by the display server or by GDK.
1026 * Update the internal state as if the user had clicked outside the
1029 if (event->window_state.new_window_state & GDK_WINDOW_STATE_WITHDRAWN &&
1030 event->window_state.changed_mask & GDK_WINDOW_STATE_WITHDRAWN)
1031 gtk_menu_shell_deactivate (GTK_MENU_SHELL(menu));
1037 g_object_unref (window);
1038 g_object_unref (menu);
1044 gtk_menu_init (GtkMenu *menu)
1046 GtkMenuPrivate *priv;
1047 GtkStyleContext *context;
1049 priv = G_TYPE_INSTANCE_GET_PRIVATE (menu, GTK_TYPE_MENU, GtkMenuPrivate);
1053 priv->toplevel = g_object_connect (g_object_new (GTK_TYPE_WINDOW,
1054 "type", GTK_WINDOW_POPUP,
1057 "signal::event", gtk_menu_window_event, menu,
1058 "signal::destroy", gtk_widget_destroyed, &priv->toplevel,
1060 gtk_window_set_resizable (GTK_WINDOW (priv->toplevel), FALSE);
1061 gtk_window_set_mnemonic_modifier (GTK_WINDOW (priv->toplevel), 0);
1063 /* Refloat the menu, so that reference counting for the menu isn't
1064 * affected by it being a child of the toplevel
1066 g_object_force_floating (G_OBJECT (menu));
1067 priv->needs_destruction_ref = TRUE;
1069 priv->monitor_num = -1;
1070 priv->drag_start_y = -1;
1072 context = gtk_widget_get_style_context (GTK_WIDGET (menu));
1073 gtk_style_context_add_class (context, GTK_STYLE_CLASS_MENU);
1075 _gtk_widget_set_captured_event_handler (GTK_WIDGET (menu), gtk_menu_captured_event);
1079 gtk_menu_destroy (GtkWidget *widget)
1081 GtkMenu *menu = GTK_MENU (widget);
1082 GtkMenuPrivate *priv = menu->priv;
1083 GtkMenuAttachData *data;
1085 gtk_menu_remove_scroll_timeout (menu);
1087 data = g_object_get_data (G_OBJECT (widget), attach_data_key);
1089 gtk_menu_detach (menu);
1091 gtk_menu_stop_navigating_submenu (menu);
1093 if (priv->old_active_menu_item)
1094 g_clear_object (&priv->old_active_menu_item);
1096 /* Add back the reference count for being a child */
1097 if (priv->needs_destruction_ref)
1099 priv->needs_destruction_ref = FALSE;
1100 g_object_ref (widget);
1103 if (priv->accel_group)
1104 g_clear_object (&priv->accel_group);
1107 gtk_widget_destroy (priv->toplevel);
1109 if (priv->tearoff_window)
1110 gtk_widget_destroy (priv->tearoff_window);
1114 g_free (priv->heights);
1115 priv->heights = NULL;
1120 g_free (priv->title);
1124 if (priv->position_func_data_destroy)
1126 priv->position_func_data_destroy (priv->position_func_data);
1127 priv->position_func_data = NULL;
1128 priv->position_func_data_destroy = NULL;
1131 GTK_WIDGET_CLASS (gtk_menu_parent_class)->destroy (widget);
1135 menu_change_screen (GtkMenu *menu,
1136 GdkScreen *new_screen)
1138 GtkMenuPrivate *priv = menu->priv;
1140 if (gtk_widget_has_screen (GTK_WIDGET (menu)))
1142 if (new_screen == gtk_widget_get_screen (GTK_WIDGET (menu)))
1148 gtk_window_set_screen (GTK_WINDOW (priv->tearoff_window), new_screen);
1149 gtk_menu_position (menu, TRUE);
1152 gtk_window_set_screen (GTK_WINDOW (priv->toplevel), new_screen);
1153 priv->monitor_num = -1;
1157 attach_widget_screen_changed (GtkWidget *attach_widget,
1158 GdkScreen *previous_screen,
1161 if (gtk_widget_has_screen (attach_widget) &&
1162 !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1163 menu_change_screen (menu, gtk_widget_get_screen (attach_widget));
1167 * gtk_menu_attach_to_widget:
1169 * @attach_widget: the #GtkWidget that the menu will be attached to
1170 * @detacher: (scope async)(allow-none): the user supplied callback function
1171 * that will be called when the menu calls gtk_menu_detach()
1173 * Attaches the menu to the widget and provides a callback function
1174 * that will be invoked when the menu calls gtk_menu_detach() during
1178 gtk_menu_attach_to_widget (GtkMenu *menu,
1179 GtkWidget *attach_widget,
1180 GtkMenuDetachFunc detacher)
1182 GtkMenuAttachData *data;
1185 g_return_if_fail (GTK_IS_MENU (menu));
1186 g_return_if_fail (GTK_IS_WIDGET (attach_widget));
1188 /* keep this function in sync with gtk_widget_set_parent() */
1189 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1192 g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
1193 g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
1197 g_object_ref_sink (menu);
1199 data = g_slice_new (GtkMenuAttachData);
1200 data->attach_widget = attach_widget;
1202 g_signal_connect (attach_widget, "screen-changed",
1203 G_CALLBACK (attach_widget_screen_changed), menu);
1204 attach_widget_screen_changed (attach_widget, NULL, menu);
1206 data->detacher = detacher;
1207 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), data);
1208 list = g_object_steal_data (G_OBJECT (attach_widget), ATTACHED_MENUS);
1209 if (!g_list_find (list, menu))
1210 list = g_list_prepend (list, menu);
1212 g_object_set_data_full (G_OBJECT (attach_widget), I_(ATTACHED_MENUS), list,
1213 (GDestroyNotify) g_list_free);
1215 if (gtk_widget_get_state_flags (GTK_WIDGET (menu)) != 0)
1216 gtk_widget_set_state_flags (GTK_WIDGET (menu), 0, TRUE);
1218 /* Attach the widget to the toplevel window. */
1219 gtk_window_set_attached_to (GTK_WINDOW (menu->priv->toplevel), attach_widget);
1221 /* Fallback title for menu comes from attach widget */
1222 gtk_menu_update_title (menu);
1224 g_object_notify (G_OBJECT (menu), "attach-widget");
1228 * gtk_menu_get_attach_widget:
1231 * Returns the #GtkWidget that the menu is attached to.
1233 * Returns: (transfer none): the #GtkWidget that the menu is attached to
1236 gtk_menu_get_attach_widget (GtkMenu *menu)
1238 GtkMenuAttachData *data;
1240 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1242 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1244 return data->attach_widget;
1252 * Detaches the menu from the widget to which it had been attached.
1253 * This function will call the callback function, @detacher, provided
1254 * when the gtk_menu_attach_to_widget() function was called.
1257 gtk_menu_detach (GtkMenu *menu)
1259 GtkMenuAttachData *data;
1262 g_return_if_fail (GTK_IS_MENU (menu));
1264 /* keep this function in sync with gtk_widget_unparent() */
1265 data = g_object_get_data (G_OBJECT (menu), attach_data_key);
1268 g_warning ("gtk_menu_detach(): menu is not attached");
1271 g_object_set_data (G_OBJECT (menu), I_(attach_data_key), NULL);
1273 /* Detach the toplevel window. */
1274 gtk_window_set_attached_to (GTK_WINDOW (menu->priv->toplevel), NULL);
1276 g_signal_handlers_disconnect_by_func (data->attach_widget,
1277 (gpointer) attach_widget_screen_changed,
1281 data->detacher (data->attach_widget, menu);
1282 list = g_object_steal_data (G_OBJECT (data->attach_widget), ATTACHED_MENUS);
1283 list = g_list_remove (list, menu);
1285 g_object_set_data_full (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), list,
1286 (GDestroyNotify) g_list_free);
1288 g_object_set_data (G_OBJECT (data->attach_widget), I_(ATTACHED_MENUS), NULL);
1290 if (gtk_widget_get_realized (GTK_WIDGET (menu)))
1291 gtk_widget_unrealize (GTK_WIDGET (menu));
1293 g_slice_free (GtkMenuAttachData, data);
1295 /* Fallback title for menu comes from attach widget */
1296 gtk_menu_update_title (menu);
1298 g_object_unref (menu);
1302 gtk_menu_remove (GtkContainer *container,
1305 GtkMenu *menu = GTK_MENU (container);
1306 GtkMenuPrivate *priv = menu->priv;
1308 /* Clear out old_active_menu_item if it matches the item we are removing */
1309 if (priv->old_active_menu_item == widget)
1310 g_clear_object (&priv->old_active_menu_item);
1312 GTK_CONTAINER_CLASS (gtk_menu_parent_class)->remove (container, widget);
1314 g_object_set_data (G_OBJECT (widget), I_(ATTACH_INFO_KEY), NULL);
1316 menu_queue_resize (menu);
1322 * Creates a new #GtkMenu
1324 * Returns: a new #GtkMenu
1329 return g_object_new (GTK_TYPE_MENU, NULL);
1333 gtk_menu_real_insert (GtkMenuShell *menu_shell,
1337 GtkMenu *menu = GTK_MENU (menu_shell);
1338 GtkMenuPrivate *priv = menu->priv;
1339 AttachInfo *ai = get_attach_info (child);
1341 ai->left_attach = -1;
1342 ai->right_attach = -1;
1343 ai->top_attach = -1;
1344 ai->bottom_attach = -1;
1346 if (gtk_widget_get_realized (GTK_WIDGET (menu_shell)))
1347 gtk_widget_set_parent_window (child, priv->bin_window);
1349 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->insert (menu_shell, child, position);
1351 menu_queue_resize (menu);
1355 gtk_menu_tearoff_bg_copy (GtkMenu *menu)
1357 GtkMenuPrivate *priv = menu->priv;
1363 cairo_surface_t *surface;
1364 cairo_pattern_t *pattern;
1367 priv->tearoff_active = FALSE;
1368 priv->saved_scroll_offset = priv->scroll_offset;
1370 window = gtk_widget_get_window (priv->tearoff_window);
1371 width = gdk_window_get_width (window);
1372 height = gdk_window_get_height (window);
1374 surface = gdk_window_create_similar_surface (window,
1375 CAIRO_CONTENT_COLOR,
1379 cr = cairo_create (surface);
1380 gdk_cairo_set_source_window (cr, window, 0, 0);
1384 gtk_widget_set_size_request (priv->tearoff_window, width, height);
1386 pattern = cairo_pattern_create_for_surface (surface);
1387 gdk_window_set_background_pattern (window, pattern);
1389 cairo_pattern_destroy (pattern);
1390 cairo_surface_destroy (surface);
1395 popup_grab_on_window (GdkWindow *window,
1396 GdkDevice *keyboard,
1398 guint32 activate_time)
1401 gdk_device_grab (keyboard, window,
1402 GDK_OWNERSHIP_WINDOW, TRUE,
1403 GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
1404 NULL, activate_time) != GDK_GRAB_SUCCESS)
1408 gdk_device_grab (pointer, window,
1409 GDK_OWNERSHIP_WINDOW, TRUE,
1410 GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
1411 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
1412 GDK_POINTER_MOTION_MASK,
1413 NULL, activate_time) != GDK_GRAB_SUCCESS)
1416 gdk_device_ungrab (keyboard, activate_time);
1425 * gtk_menu_popup_for_device:
1427 * @device: (allow-none): a #GdkDevice
1428 * @parent_menu_shell: (allow-none): the menu shell containing the triggering
1429 * menu item, or %NULL
1430 * @parent_menu_item: (allow-none): the menu item whose activation triggered
1431 * the popup, or %NULL
1432 * @func: (allow-none): a user supplied function used to position the menu,
1434 * @data: (allow-none): user supplied data to be passed to @func
1435 * @destroy: (allow-none): destroy notify for @data
1436 * @button: the mouse button which was pressed to initiate the event
1437 * @activate_time: the time at which the activation event occurred
1439 * Displays a menu and makes it available for selection.
1441 * Applications can use this function to display context-sensitive menus,
1442 * and will typically supply %NULL for the @parent_menu_shell,
1443 * @parent_menu_item, @func, @data and @destroy parameters. The default
1444 * menu positioning function will position the menu at the current position
1445 * of @device (or its corresponding pointer).
1447 * The @button parameter should be the mouse button pressed to initiate
1448 * the menu popup. If the menu popup was initiated by something other than
1449 * a mouse button press, such as a mouse button release or a keypress,
1450 * @button should be 0.
1452 * The @activate_time parameter is used to conflict-resolve initiation of
1453 * concurrent requests for mouse/keyboard grab requests. To function
1454 * properly, this needs to be the time stamp of the user event (such as
1455 * a mouse click or key press) that caused the initiation of the popup.
1456 * Only if no such event is available, gtk_get_current_event_time() can
1460 * Rename to: gtk_menu_popup
1463 gtk_menu_popup_for_device (GtkMenu *menu,
1465 GtkWidget *parent_menu_shell,
1466 GtkWidget *parent_menu_item,
1467 GtkMenuPositionFunc func,
1469 GDestroyNotify destroy,
1471 guint32 activate_time)
1473 GtkMenuPrivate *priv = menu->priv;
1475 GtkWidget *xgrab_shell;
1477 GdkEvent *current_event;
1478 GtkMenuShell *menu_shell;
1479 gboolean grab_keyboard;
1480 GtkWidget *parent_toplevel;
1481 GdkDevice *keyboard, *pointer, *source_device = NULL;
1483 g_return_if_fail (GTK_IS_MENU (menu));
1484 g_return_if_fail (device == NULL || GDK_IS_DEVICE (device));
1487 device = gtk_get_current_event_device ();
1491 GdkDisplay *display;
1492 GdkDeviceManager *device_manager;
1495 display = gtk_widget_get_display (GTK_WIDGET (menu));
1496 device_manager = gdk_display_get_device_manager (display);
1497 devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
1499 device = devices->data;
1501 g_list_free (devices);
1504 widget = GTK_WIDGET (menu);
1505 menu_shell = GTK_MENU_SHELL (menu);
1507 if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
1510 pointer = gdk_device_get_associated_device (device);
1515 keyboard = gdk_device_get_associated_device (device);
1518 menu_shell->priv->parent_menu_shell = parent_menu_shell;
1520 priv->seen_item_enter = FALSE;
1522 /* Find the last viewable ancestor, and make an X grab on it
1524 parent = GTK_WIDGET (menu);
1528 gboolean viewable = TRUE;
1529 GtkWidget *tmp = parent;
1533 if (!gtk_widget_get_mapped (tmp))
1538 tmp = gtk_widget_get_parent (tmp);
1542 xgrab_shell = parent;
1544 parent = GTK_MENU_SHELL (parent)->priv->parent_menu_shell;
1547 /* We want to receive events generated when we map the menu;
1548 * unfortunately, since there is probably already an implicit
1549 * grab in place from the button that the user used to pop up
1550 * the menu, we won't receive then -- in particular, the EnterNotify
1551 * when the menu pops up under the pointer.
1553 * If we are grabbing on a parent menu shell, no problem; just grab
1554 * on that menu shell first before popping up the window with
1555 * owner_events = TRUE.
1557 * When grabbing on the menu itself, things get more convoluted --
1558 * we do an explicit grab on a specially created window with
1559 * owner_events = TRUE, which we override further down with a
1560 * grab on the menu. (We can't grab on the menu until it is mapped;
1561 * we probably could just leave the grab on the other window,
1562 * with a little reorganization of the code in gtkmenu*).
1564 grab_keyboard = gtk_menu_shell_get_take_focus (menu_shell);
1565 gtk_window_set_accept_focus (GTK_WINDOW (priv->toplevel), grab_keyboard);
1570 if (xgrab_shell && xgrab_shell != widget)
1572 if (popup_grab_on_window (gtk_widget_get_window (xgrab_shell), keyboard, pointer, activate_time))
1574 _gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (xgrab_shell), pointer);
1575 GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab = TRUE;
1580 GdkWindow *transfer_window;
1582 xgrab_shell = widget;
1583 transfer_window = menu_grab_transfer_window_get (menu);
1584 if (popup_grab_on_window (transfer_window, keyboard, pointer, activate_time))
1586 _gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (xgrab_shell), pointer);
1587 GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab = TRUE;
1591 if (!GTK_MENU_SHELL (xgrab_shell)->priv->have_xgrab)
1593 /* We failed to make our pointer/keyboard grab.
1594 * Rather than leaving the user with a stuck up window,
1595 * we just abort here. Presumably the user will try again.
1597 menu_shell->priv->parent_menu_shell = NULL;
1598 menu_grab_transfer_window_destroy (menu);
1602 _gtk_menu_shell_set_grab_device (GTK_MENU_SHELL (menu), pointer);
1603 menu_shell->priv->active = TRUE;
1604 menu_shell->priv->button = button;
1606 /* If we are popping up the menu from something other than, a button
1607 * press then, as a heuristic, we ignore enter events for the menu
1608 * until we get a MOTION_NOTIFY.
1611 current_event = gtk_get_current_event ();
1614 if ((current_event->type != GDK_BUTTON_PRESS) &&
1615 (current_event->type != GDK_ENTER_NOTIFY))
1616 menu_shell->priv->ignore_enter = TRUE;
1618 source_device = gdk_event_get_source_device (current_event);
1619 gdk_event_free (current_event);
1622 menu_shell->priv->ignore_enter = TRUE;
1626 gtk_menu_tearoff_bg_copy (menu);
1628 gtk_menu_reparent (menu, priv->toplevel, FALSE);
1631 parent_toplevel = NULL;
1632 if (parent_menu_shell)
1633 parent_toplevel = gtk_widget_get_toplevel (parent_menu_shell);
1634 else if (!g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
1636 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
1638 parent_toplevel = gtk_widget_get_toplevel (attach_widget);
1641 /* Set transient for to get the right window group and parent */
1642 if (GTK_IS_WINDOW (parent_toplevel))
1643 gtk_window_set_transient_for (GTK_WINDOW (priv->toplevel),
1644 GTK_WINDOW (parent_toplevel));
1646 priv->parent_menu_item = parent_menu_item;
1647 priv->position_func = func;
1648 priv->position_func_data = data;
1649 priv->position_func_data_destroy = destroy;
1650 menu_shell->priv->activate_time = activate_time;
1652 /* We need to show the menu here rather in the init function
1653 * because code expects to be able to tell if the menu is onscreen
1654 * by looking at gtk_widget_get_visible (menu)
1656 gtk_widget_show (GTK_WIDGET (menu));
1658 /* Position the menu, possibly changing the size request
1660 gtk_menu_position (menu, TRUE);
1662 /* Compute the size of the toplevel and realize it so we
1663 * can scroll correctly.
1665 if (!gtk_widget_get_realized (GTK_WIDGET (menu)))
1667 GtkRequisition tmp_request;
1668 GtkAllocation tmp_allocation = { 0, };
1670 /* Instead of trusting the menu position function to queue a
1671 * resize when the menu goes out of bounds, invalidate the cached
1674 gtk_widget_queue_resize (GTK_WIDGET (menu));
1675 gtk_widget_get_preferred_size (priv->toplevel, &tmp_request, NULL);
1677 tmp_allocation.width = tmp_request.width;
1678 tmp_allocation.height = tmp_request.height;
1680 gtk_widget_size_allocate (priv->toplevel, &tmp_allocation);
1682 gtk_widget_realize (priv->toplevel);
1685 gtk_menu_scroll_to (menu, priv->scroll_offset);
1687 /* if no item is selected, select the first one */
1688 if (!menu_shell->priv->active_menu_item &&
1689 source_device && gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN)
1690 gtk_menu_shell_select_first (menu_shell, TRUE);
1692 /* Once everything is set up correctly, map the toplevel */
1693 gtk_widget_show (priv->toplevel);
1695 if (xgrab_shell == widget)
1696 popup_grab_on_window (gtk_widget_get_window (widget), keyboard, pointer, activate_time); /* Should always succeed */
1698 gtk_device_grab_add (GTK_WIDGET (menu), pointer, TRUE);
1700 if (parent_menu_shell)
1702 gboolean keyboard_mode;
1704 keyboard_mode = _gtk_menu_shell_get_keyboard_mode (GTK_MENU_SHELL (parent_menu_shell));
1705 _gtk_menu_shell_set_keyboard_mode (menu_shell, keyboard_mode);
1707 else if (menu_shell->priv->button == 0) /* a keynav-activated context menu */
1708 _gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
1710 _gtk_menu_shell_update_mnemonics (menu_shell);
1714 * gtk_menu_popup: (skip)
1716 * @parent_menu_shell: (allow-none): the menu shell containing the
1717 * triggering menu item, or %NULL
1718 * @parent_menu_item: (allow-none): the menu item whose activation
1719 * triggered the popup, or %NULL
1720 * @func: (allow-none): a user supplied function used to position
1721 * the menu, or %NULL
1722 * @data: user supplied data to be passed to @func.
1723 * @button: the mouse button which was pressed to initiate the event.
1724 * @activate_time: the time at which the activation event occurred.
1726 * Displays a menu and makes it available for selection.
1728 * Applications can use this function to display context-sensitive
1729 * menus, and will typically supply %NULL for the @parent_menu_shell,
1730 * @parent_menu_item, @func and @data parameters. The default menu
1731 * positioning function will position the menu at the current mouse
1734 * The @button parameter should be the mouse button pressed to initiate
1735 * the menu popup. If the menu popup was initiated by something other
1736 * than a mouse button press, such as a mouse button release or a keypress,
1737 * @button should be 0.
1739 * The @activate_time parameter is used to conflict-resolve initiation
1740 * of concurrent requests for mouse/keyboard grab requests. To function
1741 * properly, this needs to be the timestamp of the user event (such as
1742 * a mouse click or key press) that caused the initiation of the popup.
1743 * Only if no such event is available, gtk_get_current_event_time() can
1747 gtk_menu_popup (GtkMenu *menu,
1748 GtkWidget *parent_menu_shell,
1749 GtkWidget *parent_menu_item,
1750 GtkMenuPositionFunc func,
1753 guint32 activate_time)
1755 g_return_if_fail (GTK_IS_MENU (menu));
1757 gtk_menu_popup_for_device (menu,
1762 button, activate_time);
1769 * Removes the menu from the screen.
1772 gtk_menu_popdown (GtkMenu *menu)
1774 GtkMenuPrivate *priv;
1775 GtkMenuShell *menu_shell;
1778 g_return_if_fail (GTK_IS_MENU (menu));
1780 menu_shell = GTK_MENU_SHELL (menu);
1783 menu_shell->priv->parent_menu_shell = NULL;
1784 menu_shell->priv->active = FALSE;
1785 menu_shell->priv->ignore_enter = FALSE;
1787 priv->have_position = FALSE;
1789 gtk_menu_stop_scrolling (menu);
1790 gtk_menu_stop_navigating_submenu (menu);
1792 if (menu_shell->priv->active_menu_item)
1794 if (priv->old_active_menu_item)
1795 g_object_unref (priv->old_active_menu_item);
1796 priv->old_active_menu_item = menu_shell->priv->active_menu_item;
1797 g_object_ref (priv->old_active_menu_item);
1800 gtk_menu_shell_deselect (menu_shell);
1802 /* The X Grab, if present, will automatically be removed
1803 * when we hide the window
1807 gtk_widget_hide (priv->toplevel);
1808 gtk_window_set_transient_for (GTK_WINDOW (priv->toplevel), NULL);
1811 pointer = _gtk_menu_shell_get_grab_device (menu_shell);
1815 gtk_widget_set_size_request (priv->tearoff_window, -1, -1);
1817 if (gtk_bin_get_child (GTK_BIN (priv->toplevel)))
1819 gtk_menu_reparent (menu, priv->tearoff_hbox, TRUE);
1823 /* We popped up the menu from the tearoff, so we need to
1824 * release the grab - we aren't actually hiding the menu.
1826 if (menu_shell->priv->have_xgrab && pointer)
1828 GdkDevice *keyboard;
1830 gdk_device_ungrab (pointer, GDK_CURRENT_TIME);
1831 keyboard = gdk_device_get_associated_device (pointer);
1834 gdk_device_ungrab (keyboard, GDK_CURRENT_TIME);
1838 /* gtk_menu_popdown is called each time a menu item is selected from
1839 * a torn off menu. Only scroll back to the saved position if the
1840 * non-tearoff menu was popped down.
1842 if (!priv->tearoff_active)
1843 gtk_menu_scroll_to (menu, priv->saved_scroll_offset);
1844 priv->tearoff_active = TRUE;
1847 gtk_widget_hide (GTK_WIDGET (menu));
1849 menu_shell->priv->have_xgrab = FALSE;
1852 gtk_device_grab_remove (GTK_WIDGET (menu), pointer);
1854 _gtk_menu_shell_set_grab_device (menu_shell, NULL);
1856 menu_grab_transfer_window_destroy (menu);
1860 * gtk_menu_get_active:
1863 * Returns the selected menu item from the menu. This is used by the
1866 * Returns: (transfer none): the #GtkMenuItem that was last selected
1867 * in the menu. If a selection has not yet been made, the
1868 * first menu item is selected.
1871 gtk_menu_get_active (GtkMenu *menu)
1873 GtkMenuPrivate *priv = menu->priv;
1877 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1879 if (!priv->old_active_menu_item)
1882 children = GTK_MENU_SHELL (menu)->priv->children;
1886 child = children->data;
1887 children = children->next;
1889 if (gtk_bin_get_child (GTK_BIN (child)))
1894 priv->old_active_menu_item = child;
1895 if (priv->old_active_menu_item)
1896 g_object_ref (priv->old_active_menu_item);
1899 return priv->old_active_menu_item;
1903 * gtk_menu_set_active:
1905 * @index: the index of the menu item to select. Iindex values are
1908 * Selects the specified menu item within the menu. This is used by
1909 * the #GtkOptionMenu and should not be used by anyone else.
1912 gtk_menu_set_active (GtkMenu *menu,
1915 GtkMenuPrivate *priv = menu->priv;
1919 g_return_if_fail (GTK_IS_MENU (menu));
1921 tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->priv->children, index);
1924 child = tmp_list->data;
1925 if (gtk_bin_get_child (GTK_BIN (child)))
1927 if (priv->old_active_menu_item)
1928 g_object_unref (priv->old_active_menu_item);
1929 priv->old_active_menu_item = child;
1930 g_object_ref (priv->old_active_menu_item);
1936 * gtk_menu_set_accel_group:
1938 * @accel_group: (allow-none): the #GtkAccelGroup to be associated
1941 * Set the #GtkAccelGroup which holds global accelerators for the
1942 * menu. This accelerator group needs to also be added to all windows
1943 * that this menu is being used in with gtk_window_add_accel_group(),
1944 * in order for those windows to support all the accelerators
1945 * contained in this group.
1948 gtk_menu_set_accel_group (GtkMenu *menu,
1949 GtkAccelGroup *accel_group)
1951 GtkMenuPrivate *priv = menu->priv;
1952 g_return_if_fail (GTK_IS_MENU (menu));
1954 if (priv->accel_group != accel_group)
1956 if (priv->accel_group)
1957 g_object_unref (priv->accel_group);
1958 priv->accel_group = accel_group;
1959 if (priv->accel_group)
1960 g_object_ref (priv->accel_group);
1961 _gtk_menu_refresh_accel_paths (menu, TRUE);
1966 * gtk_menu_get_accel_group:
1969 * Gets the #GtkAccelGroup which holds global accelerators for the
1970 * menu. See gtk_menu_set_accel_group().
1972 * Returns: (transfer none): the #GtkAccelGroup associated with the menu
1975 gtk_menu_get_accel_group (GtkMenu *menu)
1977 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
1979 return menu->priv->accel_group;
1983 gtk_menu_real_can_activate_accel (GtkWidget *widget,
1986 /* Menu items chain here to figure whether they can activate their
1987 * accelerators. Unlike ordinary widgets, menus allow accel
1988 * activation even if invisible since that's the usual case for
1989 * submenus/popup-menus. however, the state of the attach widget
1990 * affects the "activeness" of the menu.
1992 GtkWidget *awidget = gtk_menu_get_attach_widget (GTK_MENU (widget));
1995 return gtk_widget_can_activate_accel (awidget, signal_id);
1997 return gtk_widget_is_sensitive (widget);
2001 * gtk_menu_set_accel_path
2002 * @menu: a valid #GtkMenu
2003 * @accel_path: (allow-none): a valid accelerator path
2005 * Sets an accelerator path for this menu from which accelerator paths
2006 * for its immediate children, its menu items, can be constructed.
2007 * The main purpose of this function is to spare the programmer the
2008 * inconvenience of having to call gtk_menu_item_set_accel_path() on
2009 * each menu item that should support runtime user changable accelerators.
2010 * Instead, by just calling gtk_menu_set_accel_path() on their parent,
2011 * each menu item of this menu, that contains a label describing its
2012 * purpose, automatically gets an accel path assigned.
2014 * For example, a menu containing menu items "New" and "Exit", will, after
2015 * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
2016 * has been called, assign its items the accel paths:
2017 * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
2019 * Assigning accel paths to menu items then enables the user to change
2020 * their accelerators at runtime. More details about accelerator paths
2021 * and their default setups can be found at gtk_accel_map_add_entry().
2023 * Note that @accel_path string will be stored in a #GQuark. Therefore,
2024 * if you pass a static string, you can save some memory by interning
2025 * it first with g_intern_static_string().
2028 gtk_menu_set_accel_path (GtkMenu *menu,
2029 const gchar *accel_path)
2031 GtkMenuPrivate *priv = menu->priv;
2032 g_return_if_fail (GTK_IS_MENU (menu));
2035 g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
2037 /* FIXME: accel_path should be defined as const gchar* */
2038 priv->accel_path = (gchar*)g_intern_string (accel_path);
2039 if (priv->accel_path)
2040 _gtk_menu_refresh_accel_paths (menu, FALSE);
2044 * gtk_menu_get_accel_path
2045 * @menu: a valid #GtkMenu
2047 * Retrieves the accelerator path set on the menu.
2049 * Returns: the accelerator path set on the menu.
2054 gtk_menu_get_accel_path (GtkMenu *menu)
2056 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
2058 return menu->priv->accel_path;
2063 gboolean group_changed;
2067 refresh_accel_paths_foreach (GtkWidget *widget,
2070 GtkMenuPrivate *priv;
2071 AccelPropagation *prop = data;
2073 if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
2075 priv = prop->menu->priv;
2076 _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
2079 prop->group_changed);
2084 _gtk_menu_refresh_accel_paths (GtkMenu *menu,
2085 gboolean group_changed)
2087 GtkMenuPrivate *priv = menu->priv;
2088 g_return_if_fail (GTK_IS_MENU (menu));
2090 if (priv->accel_path && priv->accel_group)
2092 AccelPropagation prop;
2095 prop.group_changed = group_changed;
2096 gtk_container_foreach (GTK_CONTAINER (menu),
2097 refresh_accel_paths_foreach,
2103 * gtk_menu_reposition:
2106 * Repositions the menu according to its position function.
2109 gtk_menu_reposition (GtkMenu *menu)
2111 g_return_if_fail (GTK_IS_MENU (menu));
2113 if (!menu->priv->torn_off && gtk_widget_is_drawable (GTK_WIDGET (menu)))
2114 gtk_menu_position (menu, FALSE);
2118 gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
2123 value = gtk_adjustment_get_value (adjustment);
2124 if (menu->priv->scroll_offset != value)
2125 gtk_menu_scroll_to (menu, value);
2129 gtk_menu_set_tearoff_hints (GtkMenu *menu,
2132 GtkMenuPrivate *priv = menu->priv;
2133 GdkGeometry geometry_hints;
2135 if (!priv->tearoff_window)
2138 if (gtk_widget_get_visible (priv->tearoff_scrollbar))
2140 GtkRequisition requisition;
2142 gtk_widget_get_preferred_size (priv->tearoff_scrollbar,
2143 &requisition, NULL);
2144 width += requisition.width;
2147 geometry_hints.min_width = width;
2148 geometry_hints.max_width = width;
2150 geometry_hints.min_height = 0;
2151 geometry_hints.max_height = priv->requested_height;
2153 gtk_window_set_geometry_hints (GTK_WINDOW (priv->tearoff_window),
2156 GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
2160 gtk_menu_update_title (GtkMenu *menu)
2162 GtkMenuPrivate *priv = menu->priv;
2164 if (priv->tearoff_window)
2167 GtkWidget *attach_widget;
2169 title = gtk_menu_get_title (menu);
2172 attach_widget = gtk_menu_get_attach_widget (menu);
2173 if (GTK_IS_MENU_ITEM (attach_widget))
2175 GtkWidget *child = gtk_bin_get_child (GTK_BIN (attach_widget));
2176 if (GTK_IS_LABEL (child))
2177 title = gtk_label_get_text (GTK_LABEL (child));
2182 gtk_window_set_title (GTK_WINDOW (priv->tearoff_window), title);
2187 gtk_menu_get_toplevel (GtkWidget *menu)
2189 GtkWidget *attach, *toplevel;
2191 attach = gtk_menu_get_attach_widget (GTK_MENU (menu));
2193 if (GTK_IS_MENU_ITEM (attach))
2194 attach = gtk_widget_get_parent (attach);
2196 if (GTK_IS_MENU (attach))
2197 return gtk_menu_get_toplevel (attach);
2198 else if (GTK_IS_WIDGET (attach))
2200 toplevel = gtk_widget_get_toplevel (attach);
2201 if (gtk_widget_is_toplevel (toplevel))
2209 tearoff_window_destroyed (GtkWidget *widget,
2212 gtk_menu_set_tearoff_state (menu, FALSE);
2216 * gtk_menu_set_tearoff_state:
2218 * @torn_off: If %TRUE, menu is displayed as a tearoff menu.
2220 * Changes the tearoff state of the menu. A menu is normally
2221 * displayed as drop down menu which persists as long as the menu is
2222 * active. It can also be displayed as a tearoff menu which persists
2223 * until it is closed or reattached.
2226 gtk_menu_set_tearoff_state (GtkMenu *menu,
2229 GtkMenuPrivate *priv = menu->priv;
2232 g_return_if_fail (GTK_IS_MENU (menu));
2234 if (priv->torn_off != torn_off)
2236 priv->torn_off = torn_off;
2237 priv->tearoff_active = torn_off;
2241 if (gtk_widget_get_visible (GTK_WIDGET (menu)))
2242 gtk_menu_popdown (menu);
2244 if (!priv->tearoff_window)
2246 GtkWidget *toplevel;
2248 priv->tearoff_window = g_object_new (GTK_TYPE_WINDOW,
2249 "type", GTK_WINDOW_TOPLEVEL,
2250 "screen", gtk_widget_get_screen (priv->toplevel),
2251 "app-paintable", TRUE,
2254 gtk_window_set_type_hint (GTK_WINDOW (priv->tearoff_window),
2255 GDK_WINDOW_TYPE_HINT_MENU);
2256 gtk_window_set_mnemonic_modifier (GTK_WINDOW (priv->tearoff_window), 0);
2257 g_signal_connect (priv->tearoff_window, "destroy",
2258 G_CALLBACK (tearoff_window_destroyed), menu);
2259 g_signal_connect (priv->tearoff_window, "event",
2260 G_CALLBACK (gtk_menu_window_event), menu);
2262 gtk_menu_update_title (menu);
2264 gtk_widget_realize (priv->tearoff_window);
2266 toplevel = gtk_menu_get_toplevel (GTK_WIDGET (menu));
2267 if (toplevel != NULL)
2268 gtk_window_set_transient_for (GTK_WINDOW (priv->tearoff_window),
2269 GTK_WINDOW (toplevel));
2271 priv->tearoff_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
2272 gtk_container_add (GTK_CONTAINER (priv->tearoff_window),
2273 priv->tearoff_hbox);
2275 height = gdk_window_get_height (gtk_widget_get_window (GTK_WIDGET (menu)));
2276 priv->tearoff_adjustment = gtk_adjustment_new (0,
2277 0, priv->requested_height,
2281 g_object_connect (priv->tearoff_adjustment,
2282 "signal::value-changed", gtk_menu_scrollbar_changed, menu,
2284 priv->tearoff_scrollbar = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, priv->tearoff_adjustment);
2286 gtk_box_pack_end (GTK_BOX (priv->tearoff_hbox),
2287 priv->tearoff_scrollbar,
2290 if (gtk_adjustment_get_upper (priv->tearoff_adjustment) > height)
2291 gtk_widget_show (priv->tearoff_scrollbar);
2293 gtk_widget_show (priv->tearoff_hbox);
2296 gtk_menu_reparent (menu, priv->tearoff_hbox, FALSE);
2298 /* Update menu->requisition */
2299 gtk_widget_get_preferred_size (GTK_WIDGET (menu), NULL, NULL);
2301 gtk_menu_set_tearoff_hints (menu, gdk_window_get_width (gtk_widget_get_window (GTK_WIDGET (menu))));
2303 gtk_widget_realize (priv->tearoff_window);
2304 gtk_menu_position (menu, TRUE);
2306 gtk_widget_show (GTK_WIDGET (menu));
2307 gtk_widget_show (priv->tearoff_window);
2309 gtk_menu_scroll_to (menu, 0);
2314 gtk_widget_hide (GTK_WIDGET (menu));
2315 gtk_widget_hide (priv->tearoff_window);
2316 if (GTK_IS_CONTAINER (priv->toplevel))
2317 gtk_menu_reparent (menu, priv->toplevel, FALSE);
2318 gtk_widget_destroy (priv->tearoff_window);
2320 priv->tearoff_window = NULL;
2321 priv->tearoff_hbox = NULL;
2322 priv->tearoff_scrollbar = NULL;
2323 priv->tearoff_adjustment = NULL;
2326 g_object_notify (G_OBJECT (menu), "tearoff-state");
2331 * gtk_menu_get_tearoff_state:
2334 * Returns whether the menu is torn off.
2335 * See gtk_menu_set_tearoff_state().
2337 * Return value: %TRUE if the menu is currently torn off.
2340 gtk_menu_get_tearoff_state (GtkMenu *menu)
2342 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
2344 return menu->priv->torn_off;
2348 * gtk_menu_set_title:
2350 * @title: a string containing the title for the menu
2352 * Sets the title string for the menu.
2354 * The title is displayed when the menu is shown as a tearoff
2355 * menu. If @title is %NULL, the menu will see if it is attached
2356 * to a parent menu item, and if so it will try to use the same
2357 * text as that menu item's label.
2360 gtk_menu_set_title (GtkMenu *menu,
2363 GtkMenuPrivate *priv = menu->priv;
2366 g_return_if_fail (GTK_IS_MENU (menu));
2368 old_title = priv->title;
2369 priv->title = g_strdup (title);
2372 gtk_menu_update_title (menu);
2373 g_object_notify (G_OBJECT (menu), "tearoff-title");
2377 * gtk_menu_get_title:
2380 * Returns the title of the menu. See gtk_menu_set_title().
2382 * Return value: the title of the menu, or %NULL if the menu
2383 * has no title set on it. This string is owned by GTK+
2384 * and should not be modified or freed.
2387 gtk_menu_get_title (GtkMenu *menu)
2389 g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
2391 return menu->priv->title;
2395 * gtk_menu_reorder_child:
2397 * @child: the #GtkMenuItem to move
2398 * @position: the new position to place @child.
2399 * Positions are numbered from 0 to n - 1
2401 * Moves @child to a new @position in the list of @menu
2405 gtk_menu_reorder_child (GtkMenu *menu,
2409 GtkMenuShell *menu_shell;
2411 g_return_if_fail (GTK_IS_MENU (menu));
2412 g_return_if_fail (GTK_IS_MENU_ITEM (child));
2414 menu_shell = GTK_MENU_SHELL (menu);
2416 if (g_list_find (menu_shell->priv->children, child))
2418 menu_shell->priv->children = g_list_remove (menu_shell->priv->children, child);
2419 menu_shell->priv->children = g_list_insert (menu_shell->priv->children, child, position);
2421 menu_queue_resize (menu);
2426 gtk_menu_style_updated (GtkWidget *widget)
2428 GTK_WIDGET_CLASS (gtk_menu_parent_class)->style_updated (widget);
2430 if (gtk_widget_get_realized (widget))
2432 GtkMenu *menu = GTK_MENU (widget);
2433 GtkMenuPrivate *priv = menu->priv;
2434 GtkStyleContext *context;
2436 context = gtk_widget_get_style_context (widget);
2438 gtk_style_context_set_background (context, priv->bin_window);
2439 gtk_style_context_set_background (context, priv->view_window);
2440 gtk_style_context_set_background (context, gtk_widget_get_window (widget));
2445 get_arrows_border (GtkMenu *menu,
2448 GtkMenuPrivate *priv = menu->priv;
2449 guint scroll_arrow_height;
2450 GtkArrowPlacement arrow_placement;
2452 gtk_widget_style_get (GTK_WIDGET (menu),
2453 "scroll-arrow-vlength", &scroll_arrow_height,
2454 "arrow_placement", &arrow_placement,
2457 switch (arrow_placement)
2459 case GTK_ARROWS_BOTH:
2460 border->top = priv->upper_arrow_visible ? scroll_arrow_height : 0;
2461 border->bottom = priv->lower_arrow_visible ? scroll_arrow_height : 0;
2464 case GTK_ARROWS_START:
2465 border->top = (priv->upper_arrow_visible ||
2466 priv->lower_arrow_visible) ? scroll_arrow_height : 0;
2470 case GTK_ARROWS_END:
2472 border->bottom = (priv->upper_arrow_visible ||
2473 priv->lower_arrow_visible) ? scroll_arrow_height : 0;
2477 border->left = border->right = 0;
2481 get_menu_padding (GtkWidget *widget,
2484 GtkStyleContext *context;
2485 GtkStateFlags state;
2487 context = gtk_widget_get_style_context (widget);
2488 state = gtk_widget_get_state_flags (widget);
2490 gtk_style_context_get_padding (context, state, padding);
2494 gtk_menu_realize (GtkWidget *widget)
2496 GtkMenu *menu = GTK_MENU (widget);
2497 GtkMenuPrivate *priv = menu->priv;
2498 GtkAllocation allocation;
2499 GtkStyleContext *context;
2501 GdkWindowAttr attributes;
2502 gint attributes_mask;
2506 guint vertical_padding;
2507 guint horizontal_padding;
2508 GtkBorder arrow_border, padding;
2510 g_return_if_fail (GTK_IS_MENU (widget));
2512 gtk_widget_set_realized (widget, TRUE);
2514 gtk_widget_get_allocation (widget, &allocation);
2516 attributes.window_type = GDK_WINDOW_CHILD;
2517 attributes.x = allocation.x;
2518 attributes.y = allocation.y;
2519 attributes.width = allocation.width;
2520 attributes.height = allocation.height;
2521 attributes.wclass = GDK_INPUT_OUTPUT;
2522 attributes.visual = gtk_widget_get_visual (widget);
2523 attributes.event_mask = gtk_widget_get_events (widget);
2524 attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_KEY_PRESS_MASK |
2525 GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
2527 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
2529 window = gdk_window_new (gtk_widget_get_parent_window (widget),
2530 &attributes, attributes_mask);
2531 gtk_widget_set_window (widget, window);
2532 gdk_window_set_user_data (window, widget);
2534 get_menu_padding (widget, &padding);
2535 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
2536 context = gtk_widget_get_style_context (widget);
2538 gtk_widget_style_get (GTK_WIDGET (menu),
2539 "vertical-padding", &vertical_padding,
2540 "horizontal-padding", &horizontal_padding,
2543 gtk_widget_get_allocation (widget, &allocation);
2545 attributes.x = border_width + padding.left + horizontal_padding;
2546 attributes.y = border_width + padding.top + vertical_padding;
2547 attributes.width = allocation.width -
2548 (2 * (border_width + horizontal_padding)) - padding.left - padding.right;
2549 attributes.height = allocation.height -
2550 (2 * (border_width + vertical_padding)) - padding.top - padding.bottom;
2552 get_arrows_border (menu, &arrow_border);
2553 attributes.y += arrow_border.top;
2554 attributes.height -= arrow_border.top;
2555 attributes.height -= arrow_border.bottom;
2557 attributes.width = MAX (1, attributes.width);
2558 attributes.height = MAX (1, attributes.height);
2560 priv->view_window = gdk_window_new (window,
2561 &attributes, attributes_mask);
2562 gdk_window_set_user_data (priv->view_window, menu);
2564 gtk_widget_get_allocation (widget, &allocation);
2568 attributes.width = allocation.width + (2 * (border_width + horizontal_padding)) +
2569 padding.left + padding.right;
2570 attributes.height = priv->requested_height - (2 * (border_width + vertical_padding)) +
2571 padding.top + padding.bottom;
2573 attributes.width = MAX (1, attributes.width);
2574 attributes.height = MAX (1, attributes.height);
2576 priv->bin_window = gdk_window_new (priv->view_window,
2577 &attributes, attributes_mask);
2578 gdk_window_set_user_data (priv->bin_window, menu);
2580 children = GTK_MENU_SHELL (menu)->priv->children;
2583 child = children->data;
2584 children = children->next;
2586 gtk_widget_set_parent_window (child, priv->bin_window);
2589 gtk_style_context_set_background (context, priv->bin_window);
2590 gtk_style_context_set_background (context, priv->view_window);
2591 gtk_style_context_set_background (context, window);
2593 if (GTK_MENU_SHELL (widget)->priv->active_menu_item)
2594 gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
2595 GTK_MENU_SHELL (widget)->priv->active_menu_item);
2597 gdk_window_show (priv->bin_window);
2598 gdk_window_show (priv->view_window);
2602 gtk_menu_focus (GtkWidget *widget,
2603 GtkDirectionType direction)
2605 /* A menu or its menu items cannot have focus */
2609 /* See notes in gtk_menu_popup() for information
2610 * about the "grab transfer window"
2613 menu_grab_transfer_window_get (GtkMenu *menu)
2615 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2618 GdkWindowAttr attributes;
2619 gint attributes_mask;
2621 attributes.x = -100;
2622 attributes.y = -100;
2623 attributes.width = 10;
2624 attributes.height = 10;
2625 attributes.window_type = GDK_WINDOW_TEMP;
2626 attributes.wclass = GDK_INPUT_ONLY;
2627 attributes.override_redirect = TRUE;
2628 attributes.event_mask = 0;
2630 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
2632 window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
2633 &attributes, attributes_mask);
2634 gdk_window_set_user_data (window, menu);
2636 gdk_window_show (window);
2638 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), window);
2645 menu_grab_transfer_window_destroy (GtkMenu *menu)
2647 GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
2650 gdk_window_set_user_data (window, NULL);
2651 gdk_window_destroy (window);
2652 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-transfer-window"), NULL);
2657 gtk_menu_unrealize (GtkWidget *widget)
2659 GtkMenu *menu = GTK_MENU (widget);
2660 GtkMenuPrivate *priv = menu->priv;
2662 menu_grab_transfer_window_destroy (menu);
2664 gdk_window_set_user_data (priv->view_window, NULL);
2665 gdk_window_destroy (priv->view_window);
2666 priv->view_window = NULL;
2668 gdk_window_set_user_data (priv->bin_window, NULL);
2669 gdk_window_destroy (priv->bin_window);
2670 priv->bin_window = NULL;
2672 GTK_WIDGET_CLASS (gtk_menu_parent_class)->unrealize (widget);
2676 calculate_line_heights (GtkMenu *menu,
2678 guint **ret_min_heights,
2679 guint **ret_nat_heights)
2682 GtkMenuPrivate *priv;
2683 GtkMenuShell *menu_shell;
2684 GtkWidget *child, *widget;
2686 guint horizontal_padding;
2695 widget = GTK_WIDGET (menu);
2696 menu_shell = GTK_MENU_SHELL (widget);
2698 min_heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2699 nat_heights = g_new0 (guint, gtk_menu_get_n_rows (menu));
2700 n_heights = gtk_menu_get_n_rows (menu);
2701 n_columns = gtk_menu_get_n_columns (menu);
2702 avail_width = for_width - (2 * priv->toggle_size + priv->accel_size) * n_columns;
2704 gtk_widget_style_get (GTK_WIDGET (menu),
2705 "horizontal-padding", &horizontal_padding,
2707 get_menu_padding (widget, &padding);
2709 border_width = gtk_container_get_border_width (GTK_CONTAINER (menu));
2710 avail_width -= (border_width + horizontal_padding) * 2 + padding.left + padding.right;
2712 for (children = menu_shell->priv->children; children; children = children->next)
2717 gint child_min, child_nat;
2719 child = children->data;
2721 if (!gtk_widget_get_visible (child))
2724 get_effective_child_attach (child, &l, &r, &t, &b);
2726 part = avail_width / (r - l);
2728 gtk_widget_get_preferred_height_for_width (child, part,
2729 &child_min, &child_nat);
2731 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
2733 part = MAX (child_min, toggle_size) / (b - t);
2734 min_heights[t] = MAX (min_heights[t], part);
2736 part = MAX (child_nat, toggle_size) / (b - t);
2737 nat_heights[t] = MAX (nat_heights[t], part);
2740 if (ret_min_heights)
2741 *ret_min_heights = min_heights;
2743 g_free (min_heights);
2745 if (ret_nat_heights)
2746 *ret_nat_heights = nat_heights;
2748 g_free (nat_heights);
2754 gtk_menu_size_allocate (GtkWidget *widget,
2755 GtkAllocation *allocation)
2758 GtkMenuPrivate *priv;
2759 GtkMenuShell *menu_shell;
2761 GtkAllocation child_allocation;
2766 guint vertical_padding;
2767 guint horizontal_padding;
2770 g_return_if_fail (GTK_IS_MENU (widget));
2771 g_return_if_fail (allocation != NULL);
2773 menu = GTK_MENU (widget);
2774 menu_shell = GTK_MENU_SHELL (widget);
2777 gtk_widget_set_allocation (widget, allocation);
2779 gtk_widget_style_get (GTK_WIDGET (menu),
2780 "vertical-padding", &vertical_padding,
2781 "horizontal-padding", &horizontal_padding,
2784 get_menu_padding (widget, &padding);
2785 border_width = gtk_container_get_border_width (GTK_CONTAINER (menu));
2787 g_free (priv->heights);
2788 priv->heights_length = calculate_line_heights (menu,
2793 /* refresh our cached height request */
2794 priv->requested_height = (2 * (border_width + vertical_padding)) +
2795 padding.top + padding.bottom;
2796 for (i = 0; i < priv->heights_length; i++)
2797 priv->requested_height += priv->heights[i];
2799 x = border_width + padding.left + horizontal_padding;
2800 y = border_width + padding.top + vertical_padding;
2801 width = allocation->width - (2 * (border_width + horizontal_padding)) -
2802 padding.left - padding.right;
2803 height = allocation->height - (2 * (border_width + vertical_padding)) -
2804 padding.top - padding.bottom;
2806 if (menu_shell->priv->active)
2807 gtk_menu_scroll_to (menu, priv->scroll_offset);
2809 if (!priv->tearoff_active)
2811 GtkBorder arrow_border;
2813 get_arrows_border (menu, &arrow_border);
2814 y += arrow_border.top;
2815 height -= arrow_border.top;
2816 height -= arrow_border.bottom;
2819 width = MAX (1, width);
2820 height = MAX (1, height);
2822 if (gtk_widget_get_realized (widget))
2824 gdk_window_move_resize (gtk_widget_get_window (widget),
2825 allocation->x, allocation->y,
2826 allocation->width, allocation->height);
2828 gdk_window_move_resize (priv->view_window, x, y, width, height);
2831 if (menu_shell->priv->children)
2833 gint base_width = width / gtk_menu_get_n_columns (menu);
2835 children = menu_shell->priv->children;
2838 child = children->data;
2839 children = children->next;
2841 if (gtk_widget_get_visible (child))
2846 get_effective_child_attach (child, &l, &r, &t, &b);
2848 if (gtk_widget_get_direction (GTK_WIDGET (menu)) == GTK_TEXT_DIR_RTL)
2851 tmp = gtk_menu_get_n_columns (menu) - l;
2852 l = gtk_menu_get_n_columns (menu) - r;
2856 child_allocation.width = (r - l) * base_width;
2857 child_allocation.height = 0;
2858 child_allocation.x = l * base_width;
2859 child_allocation.y = 0;
2861 for (i = 0; i < b; i++)
2864 child_allocation.y += priv->heights[i];
2866 child_allocation.height += priv->heights[i];
2869 gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
2872 gtk_widget_size_allocate (child, &child_allocation);
2873 gtk_widget_queue_draw (child);
2877 /* Resize the item window */
2878 if (gtk_widget_get_realized (widget))
2884 for (i = 0; i < gtk_menu_get_n_rows (menu); i++)
2885 height += priv->heights[i];
2887 width = gtk_menu_get_n_columns (menu) * base_width;
2888 gdk_window_resize (priv->bin_window, width, height);
2891 if (priv->tearoff_active)
2893 if (height >= priv->requested_height)
2895 if (gtk_widget_get_visible (priv->tearoff_scrollbar))
2897 gtk_widget_hide (priv->tearoff_scrollbar);
2898 gtk_menu_set_tearoff_hints (menu, allocation->width);
2900 gtk_menu_scroll_to (menu, 0);
2905 gtk_adjustment_configure (priv->tearoff_adjustment,
2906 gtk_adjustment_get_value (priv->tearoff_adjustment),
2908 priv->requested_height,
2909 gtk_adjustment_get_step_increment (priv->tearoff_adjustment),
2910 gtk_adjustment_get_page_increment (priv->tearoff_adjustment),
2911 allocation->height);
2913 if (!gtk_widget_get_visible (priv->tearoff_scrollbar))
2915 gtk_widget_show (priv->tearoff_scrollbar);
2916 gtk_menu_set_tearoff_hints (menu, allocation->width);
2924 get_arrows_visible_area (GtkMenu *menu,
2925 GdkRectangle *border,
2926 GdkRectangle *upper,
2927 GdkRectangle *lower,
2930 GtkArrowPlacement arrow_placement;
2931 GtkWidget *widget = GTK_WIDGET (menu);
2933 guint vertical_padding;
2934 guint horizontal_padding;
2935 gint scroll_arrow_height;
2936 GtkBorder menu_padding;
2938 gtk_widget_style_get (widget,
2939 "vertical-padding", &vertical_padding,
2940 "horizontal-padding", &horizontal_padding,
2941 "scroll-arrow-vlength", &scroll_arrow_height,
2942 "arrow-placement", &arrow_placement,
2945 get_menu_padding (widget, &menu_padding);
2946 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
2947 border->x = border_width + menu_padding.left + horizontal_padding;
2948 border->y = border_width + menu_padding.top + vertical_padding;
2949 border->width = gdk_window_get_width (gtk_widget_get_window (widget));
2950 border->height = gdk_window_get_height (gtk_widget_get_window (widget));
2952 switch (arrow_placement)
2954 case GTK_ARROWS_BOTH:
2955 upper->x = border->x;
2956 upper->y = border->y;
2957 upper->width = border->width - 2 * border->x;
2958 upper->height = scroll_arrow_height;
2960 lower->x = border->x;
2961 lower->y = border->height - border->y - scroll_arrow_height;
2962 lower->width = border->width - 2 * border->x;
2963 lower->height = scroll_arrow_height;
2966 case GTK_ARROWS_START:
2967 upper->x = border->x;
2968 upper->y = border->y;
2969 upper->width = (border->width - 2 * border->x) / 2;
2970 upper->height = scroll_arrow_height;
2972 lower->x = border->x + upper->width;
2973 lower->y = border->y;
2974 lower->width = (border->width - 2 * border->x) / 2;
2975 lower->height = scroll_arrow_height;
2978 case GTK_ARROWS_END:
2979 upper->x = border->x;
2980 upper->y = border->height - border->y - scroll_arrow_height;
2981 upper->width = (border->width - 2 * border->x) / 2;
2982 upper->height = scroll_arrow_height;
2984 lower->x = border->x + upper->width;
2985 lower->y = border->height - border->y - scroll_arrow_height;
2986 lower->width = (border->width - 2 * border->x) / 2;
2987 lower->height = scroll_arrow_height;
2991 g_assert_not_reached();
2992 upper->x = upper->y = upper->width = upper->height = 0;
2993 lower->x = lower->y = lower->width = lower->height = 0;
2996 *arrow_space = scroll_arrow_height - menu_padding.top - menu_padding.bottom;
3000 gtk_menu_draw (GtkWidget *widget,
3004 GtkMenuPrivate *priv;
3005 GtkStyleContext *context;
3006 GdkRectangle border;
3010 GtkBorder menu_padding;
3012 menu = GTK_MENU (widget);
3014 context = gtk_widget_get_style_context (widget);
3016 get_arrows_visible_area (menu, &border, &upper, &lower, &arrow_space);
3017 get_menu_padding (widget, &menu_padding);
3019 if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget)))
3021 gfloat arrow_scaling;
3024 gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
3025 arrow_size = arrow_scaling * arrow_space;
3027 gtk_render_background (context, cr, 0, 0,
3028 gtk_widget_get_allocated_width (widget),
3029 gtk_widget_get_allocated_height (widget));
3030 gtk_render_frame (context, cr, 0, 0,
3031 gtk_widget_get_allocated_width (widget),
3032 gtk_widget_get_allocated_height (widget));
3034 gtk_style_context_save (context);
3035 gtk_style_context_add_class (context, GTK_STYLE_CLASS_BUTTON);
3037 if (priv->upper_arrow_visible && !priv->tearoff_active)
3039 gtk_style_context_save (context);
3040 gtk_style_context_set_state (context, priv->upper_arrow_state);
3042 gtk_render_background (context, cr,
3044 upper.width, upper.height);
3045 gtk_render_frame (context, cr,
3047 upper.width, upper.height);
3049 gtk_render_arrow (context, cr, 0,
3050 upper.x + (upper.width - arrow_size) / 2,
3051 upper.y + menu_padding.top + (arrow_space - arrow_size) / 2,
3054 gtk_style_context_restore (context);
3057 if (priv->lower_arrow_visible && !priv->tearoff_active)
3059 gtk_style_context_save (context);
3060 gtk_style_context_set_state (context, priv->lower_arrow_state);
3062 gtk_render_background (context, cr,
3064 lower.width, lower.height);
3065 gtk_render_frame (context, cr,
3067 lower.width, lower.height);
3069 gtk_render_arrow (context, cr, G_PI,
3070 lower.x + (lower.width - arrow_size) / 2,
3071 lower.y + menu_padding.bottom + (arrow_space - arrow_size) / 2,
3074 gtk_style_context_restore (context);
3077 gtk_style_context_restore (context);
3080 if (gtk_cairo_should_draw_window (cr, priv->bin_window))
3082 gint y = -border.y + priv->scroll_offset;
3085 gtk_cairo_transform_to_window (cr, widget, priv->bin_window);
3087 if (!priv->tearoff_active)
3089 GtkBorder arrow_border;
3091 get_arrows_border (menu, &arrow_border);
3092 y -= arrow_border.top;
3095 gtk_render_background (context, cr,
3097 border.width, border.height);
3098 gtk_render_frame (context, cr,
3100 border.width, border.height);
3105 GTK_WIDGET_CLASS (gtk_menu_parent_class)->draw (widget, cr);
3111 gtk_menu_show (GtkWidget *widget)
3113 GtkMenu *menu = GTK_MENU (widget);
3115 _gtk_menu_refresh_accel_paths (menu, FALSE);
3117 GTK_WIDGET_CLASS (gtk_menu_parent_class)->show (widget);
3122 gtk_menu_get_preferred_width (GtkWidget *widget,
3127 GtkMenuShell *menu_shell;
3128 GtkMenuPrivate *priv;
3131 guint max_toggle_size;
3132 guint max_accel_width;
3133 guint horizontal_padding;
3135 gint child_min, child_nat;
3136 gint min_width, nat_width;
3139 menu = GTK_MENU (widget);
3140 menu_shell = GTK_MENU_SHELL (widget);
3143 min_width = nat_width = 0;
3145 max_toggle_size = 0;
3146 max_accel_width = 0;
3148 children = menu_shell->priv->children;
3155 child = children->data;
3156 children = children->next;
3158 if (! gtk_widget_get_visible (child))
3161 get_effective_child_attach (child, &l, &r, &t, &b);
3163 /* It's important to size_request the child
3164 * before doing the toggle size request, in
3165 * case the toggle size request depends on the size
3166 * request of a child of the child (e.g. for ImageMenuItem)
3168 gtk_widget_get_preferred_width (child, &child_min, &child_nat);
3170 gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
3171 max_toggle_size = MAX (max_toggle_size, toggle_size);
3172 max_accel_width = MAX (max_accel_width,
3173 GTK_MENU_ITEM (child)->priv->accelerator_width);
3175 part = child_min / (r - l);
3176 min_width = MAX (min_width, part);
3178 part = child_nat / (r - l);
3179 nat_width = MAX (nat_width, part);
3182 /* If the menu doesn't include any images or check items
3183 * reserve the space so that all menus are consistent.
3184 * We only do this for 'ordinary' menus, not for combobox
3185 * menus or multi-column menus
3187 if (max_toggle_size == 0 &&
3188 gtk_menu_get_n_columns (menu) == 1 &&
3189 !priv->no_toggle_size)
3191 GtkStyleContext *context;
3192 GtkWidgetPath *menu_path, *check_path;
3193 guint toggle_spacing;
3194 guint indicator_size;
3196 context = gtk_widget_get_style_context (widget);
3197 menu_path = gtk_widget_path_copy (gtk_style_context_get_path (context));
3199 /* Create a GtkCheckMenuItem path, only to query indicator spacing */
3200 check_path = gtk_widget_path_copy (menu_path);
3201 gtk_widget_path_append_type (check_path, GTK_TYPE_CHECK_MENU_ITEM);
3203 gtk_style_context_set_path (context, check_path);
3204 gtk_widget_path_free (check_path);
3206 gtk_style_context_get_style (context,
3207 "toggle-spacing", &toggle_spacing,
3208 "indicator-size", &indicator_size,
3211 max_toggle_size = indicator_size + toggle_spacing;
3213 /* Restore real widget path */
3214 gtk_style_context_set_path (context, menu_path);
3215 gtk_widget_path_free (menu_path);
3218 min_width += 2 * max_toggle_size + max_accel_width;
3219 min_width *= gtk_menu_get_n_columns (menu);
3221 nat_width += 2 * max_toggle_size + max_accel_width;
3222 nat_width *= gtk_menu_get_n_columns (menu);
3224 gtk_widget_style_get (GTK_WIDGET (menu),
3225 "horizontal-padding", &horizontal_padding,
3228 get_menu_padding (widget, &padding);
3229 border_width = gtk_container_get_border_width (GTK_CONTAINER (menu));
3230 min_width += (2 * (border_width + horizontal_padding)) +
3231 padding.left + padding.right;
3232 nat_width += (2 * (border_width + horizontal_padding)) +
3233 padding.left + padding.right;
3235 priv->toggle_size = max_toggle_size;
3236 priv->accel_size = max_accel_width;
3239 *minimum_size = min_width;
3242 *natural_size = nat_width;
3244 /* Don't resize the tearoff if it is not active,
3245 * because it won't redraw (it is only a background pixmap).
3247 if (priv->tearoff_active)
3248 gtk_menu_set_tearoff_hints (menu, min_width);
3252 gtk_menu_get_preferred_height (GtkWidget *widget,
3258 /* Menus are height-for-width only, just return the height
3259 * for the minimum width
3261 GTK_WIDGET_GET_CLASS (widget)->get_preferred_width (widget, &min_width, NULL);
3262 GTK_WIDGET_GET_CLASS (widget)->get_preferred_height_for_width (widget, min_width, minimum_size, natural_size);
3266 gtk_menu_get_preferred_height_for_width (GtkWidget *widget,
3272 GtkMenu *menu = GTK_MENU (widget);
3273 GtkMenuPrivate *priv = menu->priv;
3274 guint *min_heights, *nat_heights;
3275 guint vertical_padding, border_width;
3277 gint min_height, nat_height;
3279 gtk_widget_style_get (widget, "vertical-padding", &vertical_padding, NULL);
3280 border_width = gtk_container_get_border_width (GTK_CONTAINER (menu));
3281 get_menu_padding (widget, &padding);
3283 min_height = nat_height = (border_width + vertical_padding) * 2 +
3284 padding.top + padding.bottom;
3287 calculate_line_heights (menu, for_size, &min_heights, &nat_heights);
3289 for (i = 0; i < n_heights; i++)
3291 min_height += min_heights[i];
3292 nat_height += nat_heights[i];
3295 if (priv->have_position)
3297 GdkScreen *screen = gtk_widget_get_screen (priv->toplevel);
3298 GdkRectangle monitor;
3300 gdk_screen_get_monitor_workarea (screen, priv->monitor_num, &monitor);
3302 if (priv->position_y + min_height > monitor.y + monitor.height)
3303 min_height = monitor.y + monitor.height - priv->position_y;
3305 if (priv->position_y + nat_height > monitor.y + monitor.height)
3306 nat_height = monitor.y + monitor.height - priv->position_y;
3308 if (priv->position_y < monitor.y)
3310 min_height -= monitor.y - priv->position_y;
3311 nat_height -= monitor.y - priv->position_y;
3316 *minimum_size = min_height;
3319 *natural_size = nat_height;
3321 g_free (min_heights);
3322 g_free (nat_heights);
3326 pointer_in_menu_window (GtkWidget *widget,
3330 GtkMenu *menu = GTK_MENU (widget);
3331 GtkMenuPrivate *priv = menu->priv;
3332 GtkAllocation allocation;
3334 if (gtk_widget_get_mapped (priv->toplevel))
3336 GtkMenuShell *menu_shell;
3337 gint window_x, window_y;
3339 gdk_window_get_position (gtk_widget_get_window (priv->toplevel),
3340 &window_x, &window_y);
3342 gtk_widget_get_allocation (widget, &allocation);
3343 if (x_root >= window_x && x_root < window_x + allocation.width &&
3344 y_root >= window_y && y_root < window_y + allocation.height)
3347 menu_shell = GTK_MENU_SHELL (widget);
3349 if (GTK_IS_MENU (menu_shell->priv->parent_menu_shell))
3350 return pointer_in_menu_window (menu_shell->priv->parent_menu_shell,
3358 gtk_menu_button_press (GtkWidget *widget,
3359 GdkEventButton *event)
3361 GdkDevice *source_device;
3362 GtkWidget *event_widget;
3365 if (event->type != GDK_BUTTON_PRESS)
3368 source_device = gdk_event_get_source_device ((GdkEvent *) event);
3369 event_widget = gtk_get_event_widget ((GdkEvent *) event);
3370 menu = GTK_MENU (widget);
3372 /* Don't pass down to menu shell if a non-menuitem part of the menu
3373 * was clicked. The check for the event_widget being a GtkMenuShell
3374 * works because we have the pointer grabbed on menu_shell->window
3375 * with owner_events=TRUE, so all events that are either outside
3376 * the menu or on its border are delivered relative to
3377 * menu_shell->window.
3379 if (GTK_IS_MENU_SHELL (event_widget) &&
3380 pointer_in_menu_window (widget, event->x_root, event->y_root))
3383 if (GTK_IS_MENU_ITEM (event_widget) &&
3384 gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN &&
3385 GTK_MENU_ITEM (event_widget)->priv->submenu != NULL &&
3386 !gtk_widget_is_drawable (GTK_MENU_ITEM (event_widget)->priv->submenu))
3387 menu->priv->ignore_button_release = TRUE;
3389 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_press_event (widget, event);
3393 gtk_menu_button_release (GtkWidget *widget,
3394 GdkEventButton *event)
3396 GtkMenuPrivate *priv = GTK_MENU (widget)->priv;
3398 if (priv->ignore_button_release)
3400 priv->ignore_button_release = FALSE;
3404 if (event->type != GDK_BUTTON_RELEASE)
3407 /* Don't pass down to menu shell if a non-menuitem part of the menu
3408 * was clicked (see comment in button_press()).
3410 if (GTK_IS_MENU_SHELL (gtk_get_event_widget ((GdkEvent *) event)) &&
3411 pointer_in_menu_window (widget, event->x_root, event->y_root))
3413 /* Ugly: make sure menu_shell->button gets reset to 0 when we
3414 * bail out early here so it is in a consistent state for the
3415 * next button_press/button_release in GtkMenuShell.
3418 if (GTK_MENU_SHELL (widget)->priv->active)
3419 GTK_MENU_SHELL (widget)->priv->button = 0;
3424 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->button_release_event (widget, event);
3427 static const gchar *
3428 get_accel_path (GtkWidget *menu_item,
3433 GClosure *accel_closure;
3434 GtkAccelGroup *accel_group;
3436 path = _gtk_widget_get_accel_path (menu_item, locked);
3439 path = GTK_MENU_ITEM (menu_item)->priv->accel_path;
3445 label = gtk_bin_get_child (GTK_BIN (menu_item));
3447 if (GTK_IS_ACCEL_LABEL (label))
3449 g_object_get (label,
3450 "accel-closure", &accel_closure,
3454 accel_group = gtk_accel_group_from_accel_closure (accel_closure);
3456 *locked = gtk_accel_group_get_is_locked (accel_group);
3466 gtk_menu_key_press (GtkWidget *widget,
3469 GtkMenuShell *menu_shell;
3471 gboolean delete = FALSE;
3472 gboolean can_change_accels;
3473 gchar *accel = NULL;
3474 guint accel_key, accel_mods;
3475 GdkModifierType consumed_modifiers;
3476 GdkDisplay *display;
3478 g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
3479 g_return_val_if_fail (event != NULL, FALSE);
3481 menu_shell = GTK_MENU_SHELL (widget);
3482 menu = GTK_MENU (widget);
3484 gtk_menu_stop_navigating_submenu (menu);
3486 if (GTK_WIDGET_CLASS (gtk_menu_parent_class)->key_press_event (widget, event))
3489 display = gtk_widget_get_display (widget);
3491 g_object_get (gtk_widget_get_settings (widget),
3492 "gtk-menu-bar-accel", &accel,
3493 "gtk-can-change-accels", &can_change_accels,
3496 if (accel && *accel)
3499 GdkModifierType mods = 0;
3501 gtk_accelerator_parse (accel, &keyval, &mods);
3504 g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
3506 /* FIXME this is wrong, needs to be in the global accel resolution
3507 * thing, to properly consider i18n etc., but that probably requires
3508 * AccelGroup changes etc.
3510 if (event->keyval == keyval && (mods & event->state) == mods)
3512 gtk_menu_shell_cancel (menu_shell);
3520 switch (event->keyval)
3522 case GDK_KEY_Delete:
3523 case GDK_KEY_KP_Delete:
3524 case GDK_KEY_BackSpace:
3531 /* Figure out what modifiers went into determining the key symbol */
3532 _gtk_translate_keyboard_accel_state (gdk_keymap_get_for_display (display),
3533 event->hardware_keycode,
3535 gtk_accelerator_get_default_mod_mask (),
3537 &accel_key, NULL, NULL, &consumed_modifiers);
3539 accel_key = gdk_keyval_to_lower (accel_key);
3540 accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
3542 /* If lowercasing affects the keysym, then we need to include SHIFT
3543 * in the modifiers, We re-upper case when we match against the
3544 * keyval, but display and save in caseless form.
3546 if (accel_key != event->keyval)
3547 accel_mods |= GDK_SHIFT_MASK;
3549 /* Modify the accelerators */
3550 if (can_change_accels &&
3551 menu_shell->priv->active_menu_item &&
3552 gtk_bin_get_child (GTK_BIN (menu_shell->priv->active_menu_item)) && /* no separators */
3553 GTK_MENU_ITEM (menu_shell->priv->active_menu_item)->priv->submenu == NULL && /* no submenus */
3554 (delete || gtk_accelerator_valid (accel_key, accel_mods)))
3556 GtkWidget *menu_item = menu_shell->priv->active_menu_item;
3557 gboolean locked, replace_accels = TRUE;
3560 path = get_accel_path (menu_item, &locked);
3561 if (!path || locked)
3563 /* Can't change accelerators on menu_items without paths
3564 * (basically, those items are accelerator-locked).
3566 gtk_widget_error_bell (widget);
3572 /* For the keys that act to delete the current setting,
3573 * we delete the current setting if there is one, otherwise,
3574 * we set the key as the accelerator.
3580 if (gtk_accel_map_lookup_entry (path, &key) &&
3581 (key.accel_key || key.accel_mods))
3587 changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
3591 /* We failed, probably because this key is in use
3592 * and locked already.
3594 gtk_widget_error_bell (widget);
3603 check_threshold (GtkWidget *widget,
3612 ABS (start_x - x) > THRESHOLD ||
3613 ABS (start_y - y) > THRESHOLD;
3617 definitely_within_item (GtkWidget *widget,
3621 GdkWindow *window = GTK_MENU_ITEM (widget)->priv->event_window;
3624 w = gdk_window_get_width (window);
3625 h = gdk_window_get_height (window);
3628 check_threshold (widget, 0, 0, x, y) &&
3629 check_threshold (widget, w - 1, 0, x, y) &&
3630 check_threshold (widget, w - 1, h - 1, x, y) &&
3631 check_threshold (widget, 0, h - 1, x, y);
3635 gtk_menu_has_navigation_triangle (GtkMenu *menu)
3637 GtkMenuPrivate *priv = menu->priv;
3639 return priv->navigation_height && priv->navigation_width;
3643 gtk_menu_motion_notify (GtkWidget *widget,
3644 GdkEventMotion *event)
3646 GtkWidget *menu_item;
3648 GtkMenuShell *menu_shell;
3650 GdkDevice *source_device;
3652 gboolean need_enter;
3654 source_device = gdk_event_get_source_device ((GdkEvent *) event);
3656 if (GTK_IS_MENU (widget) &&
3657 gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
3659 GtkMenuPrivate *priv = GTK_MENU(widget)->priv;
3661 if (priv->ignore_button_release)
3662 priv->ignore_button_release = FALSE;
3664 gtk_menu_handle_scrolling (GTK_MENU (widget), event->x_root, event->y_root,
3668 /* We received the event for one of two reasons:
3670 * a) We are the active menu, and did gtk_grab_add()
3671 * b) The widget is a child of ours, and the event was propagated
3673 * Since for computation of navigation regions, we want the menu which
3674 * is the parent of the menu item, for a), we need to find that menu,
3675 * which may be different from 'widget'.
3677 menu_item = gtk_get_event_widget ((GdkEvent*) event);
3678 parent = gtk_widget_get_parent (menu_item);
3679 if (!GTK_IS_MENU_ITEM (menu_item) ||
3680 !GTK_IS_MENU (parent))
3683 menu_shell = GTK_MENU_SHELL (parent);
3684 menu = GTK_MENU (menu_shell);
3686 if (definitely_within_item (menu_item, event->x, event->y))
3687 menu_shell->priv->activate_time = 0;
3689 need_enter = (gtk_menu_has_navigation_triangle (menu) || menu_shell->priv->ignore_enter);
3691 /* Check to see if we are within an active submenu's navigation region
3693 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
3696 /* Make sure we pop down if we enter a non-selectable menu item, so we
3697 * don't show a submenu when the cursor is outside the stay-up triangle.
3699 if (!_gtk_menu_item_is_selectable (menu_item))
3701 /* We really want to deselect, but this gives the menushell code
3702 * a chance to do some bookkeeping about the menuitem.
3704 gtk_menu_shell_select_item (menu_shell, menu_item);
3710 /* The menu is now sensitive to enter events on its items, but
3711 * was previously sensitive. So we fake an enter event.
3713 menu_shell->priv->ignore_enter = FALSE;
3715 if (event->x >= 0 && event->x < gdk_window_get_width (event->window) &&
3716 event->y >= 0 && event->y < gdk_window_get_height (event->window))
3718 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
3721 send_event->crossing.window = g_object_ref (event->window);
3722 send_event->crossing.time = event->time;
3723 send_event->crossing.send_event = TRUE;
3724 send_event->crossing.x_root = event->x_root;
3725 send_event->crossing.y_root = event->y_root;
3726 send_event->crossing.x = event->x;
3727 send_event->crossing.y = event->y;
3728 send_event->crossing.state = event->state;
3729 gdk_event_set_device (send_event, gdk_event_get_device ((GdkEvent *) event));
3731 /* We send the event to 'widget', the currently active menu,
3732 * instead of 'menu', the menu that the pointer is in. This
3733 * will ensure that the event will be ignored unless the
3734 * menuitem is a child of the active menu or some parent
3735 * menu of the active menu.
3737 result = gtk_widget_event (widget, send_event);
3738 gdk_event_free (send_event);
3748 get_double_arrows (GtkMenu *menu)
3750 GtkMenuPrivate *priv = menu->priv;
3751 gboolean double_arrows;
3752 GtkArrowPlacement arrow_placement;
3754 gtk_widget_style_get (GTK_WIDGET (menu),
3755 "double-arrows", &double_arrows,
3756 "arrow-placement", &arrow_placement,
3759 if (arrow_placement != GTK_ARROWS_BOTH)
3762 return double_arrows || (priv->initially_pushed_in &&
3763 priv->scroll_offset != 0);
3767 gtk_menu_scroll_by (GtkMenu *menu,
3770 GtkMenuPrivate *priv = menu->priv;
3771 GtkBorder arrow_border;
3775 gboolean double_arrows;
3777 widget = GTK_WIDGET (menu);
3778 offset = priv->scroll_offset + step;
3780 get_arrows_border (menu, &arrow_border);
3782 double_arrows = get_double_arrows (menu);
3784 /* If we scroll upward and the non-visible top part
3785 * is smaller than the scroll arrow it would be
3786 * pretty stupid to show the arrow and taking more
3787 * screen space than just scrolling to the top.
3790 if ((step < 0) && (offset < arrow_border.top))
3793 /* Don't scroll over the top if we weren't before: */
3794 if ((priv->scroll_offset >= 0) && (offset < 0))
3797 view_height = gdk_window_get_height (gtk_widget_get_window (widget));
3799 if (priv->scroll_offset == 0 &&
3800 view_height >= priv->requested_height)
3803 /* Don't scroll past the bottom if we weren't before: */
3804 if (priv->scroll_offset > 0)
3805 view_height -= arrow_border.top;
3807 /* When both arrows are always shown,
3808 * reduce view height even more.
3811 view_height -= arrow_border.bottom;
3813 if ((priv->scroll_offset + view_height <= priv->requested_height) &&
3814 (offset + view_height > priv->requested_height))
3815 offset = priv->requested_height - view_height;
3817 if (offset != priv->scroll_offset)
3818 gtk_menu_scroll_to (menu, offset);
3822 gtk_menu_scroll_timeout (gpointer data)
3826 menu = GTK_MENU (data);
3827 gtk_menu_scroll_by (menu, menu->priv->scroll_step);
3833 gtk_menu_scroll (GtkWidget *widget,
3834 GdkEventScroll *event)
3836 GtkMenu *menu = GTK_MENU (widget);
3838 switch (event->direction)
3840 case GDK_SCROLL_RIGHT:
3841 case GDK_SCROLL_DOWN:
3842 gtk_menu_scroll_by (menu, MENU_SCROLL_STEP2);
3844 case GDK_SCROLL_LEFT:
3846 gtk_menu_scroll_by (menu, - MENU_SCROLL_STEP2);
3854 get_arrows_sensitive_area (GtkMenu *menu,
3855 GdkRectangle *upper,
3856 GdkRectangle *lower)
3858 GtkArrowPlacement arrow_placement;
3859 GtkWidget *widget = GTK_WIDGET (menu);
3863 guint vertical_padding;
3865 gint scroll_arrow_height;
3868 window = gtk_widget_get_window (widget);
3869 width = gdk_window_get_width (window);
3870 height = gdk_window_get_height (window);
3872 gtk_widget_style_get (widget,
3873 "vertical-padding", &vertical_padding,
3874 "scroll-arrow-vlength", &scroll_arrow_height,
3875 "arrow-placement", &arrow_placement,
3878 border = gtk_container_get_border_width (GTK_CONTAINER (menu)) + vertical_padding;
3879 get_menu_padding (widget, &padding);
3881 gdk_window_get_position (window, &win_x, &win_y);
3883 switch (arrow_placement)
3885 case GTK_ARROWS_BOTH:
3890 upper->width = width;
3891 upper->height = scroll_arrow_height + border + padding.top;
3897 lower->y = win_y + height - border - padding.bottom - scroll_arrow_height;
3898 lower->width = width;
3899 lower->height = scroll_arrow_height + border + padding.bottom;
3903 case GTK_ARROWS_START:
3908 upper->width = width / 2;
3909 upper->height = scroll_arrow_height + border + padding.top;
3914 lower->x = win_x + width / 2;
3916 lower->width = width / 2;
3917 lower->height = scroll_arrow_height + border + padding.bottom;
3921 case GTK_ARROWS_END:
3925 upper->y = win_y + height - border - scroll_arrow_height;
3926 upper->width = width / 2;
3927 upper->height = scroll_arrow_height + border + padding.top;
3932 lower->x = win_x + width / 2;
3933 lower->y = win_y + height - border - scroll_arrow_height;
3934 lower->width = width / 2;
3935 lower->height = scroll_arrow_height + border + padding.bottom;
3943 gtk_menu_handle_scrolling (GtkMenu *menu,
3949 GtkMenuPrivate *priv = menu->priv;
3950 GtkMenuShell *menu_shell;
3953 gboolean scroll_fast = FALSE;
3956 menu_shell = GTK_MENU_SHELL (menu);
3958 gdk_window_get_position (gtk_widget_get_window (priv->toplevel),
3963 /* upper arrow handling */
3965 get_arrows_sensitive_area (menu, &rect, NULL);
3968 if (priv->upper_arrow_visible && !priv->tearoff_active &&
3969 (x >= rect.x) && (x < rect.x + rect.width) &&
3970 (y >= rect.y) && (y < rect.y + rect.height))
3975 if ((priv->upper_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
3977 gboolean arrow_pressed = FALSE;
3979 if (priv->upper_arrow_visible && !priv->tearoff_active)
3981 scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
3983 if (enter && in_arrow &&
3984 (!priv->upper_arrow_prelight ||
3985 priv->scroll_fast != scroll_fast))
3987 priv->upper_arrow_prelight = TRUE;
3988 priv->scroll_fast = scroll_fast;
3990 /* Deselect the active item so that
3991 * any submenus are popped down
3993 gtk_menu_shell_deselect (menu_shell);
3995 gtk_menu_remove_scroll_timeout (menu);
3996 priv->scroll_step = scroll_fast
3997 ? -MENU_SCROLL_STEP2
3998 : -MENU_SCROLL_STEP1;
4000 priv->scroll_timeout =
4001 gdk_threads_add_timeout (scroll_fast
4002 ? MENU_SCROLL_TIMEOUT2
4003 : MENU_SCROLL_TIMEOUT1,
4004 gtk_menu_scroll_timeout, menu);
4006 else if (!enter && !in_arrow && priv->upper_arrow_prelight)
4008 gtk_menu_stop_scrolling (menu);
4012 /* check if the button isn't insensitive before
4013 * changing it to something else.
4015 if ((priv->upper_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
4017 GtkStateFlags arrow_state = 0;
4020 arrow_state |= GTK_STATE_FLAG_ACTIVE;
4022 if (priv->upper_arrow_prelight)
4023 arrow_state |= GTK_STATE_FLAG_PRELIGHT;
4025 if (arrow_state != priv->upper_arrow_state)
4027 priv->upper_arrow_state = arrow_state;
4029 gdk_window_invalidate_rect (gtk_widget_get_window (GTK_WIDGET (menu)),
4035 /* lower arrow handling */
4037 get_arrows_sensitive_area (menu, NULL, &rect);
4040 if (priv->lower_arrow_visible && !priv->tearoff_active &&
4041 (x >= rect.x) && (x < rect.x + rect.width) &&
4042 (y >= rect.y) && (y < rect.y + rect.height))
4047 if ((priv->lower_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
4049 gboolean arrow_pressed = FALSE;
4051 if (priv->lower_arrow_visible && !priv->tearoff_active)
4053 scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
4055 if (enter && in_arrow &&
4056 (!priv->lower_arrow_prelight ||
4057 priv->scroll_fast != scroll_fast))
4059 priv->lower_arrow_prelight = TRUE;
4060 priv->scroll_fast = scroll_fast;
4062 /* Deselect the active item so that
4063 * any submenus are popped down
4065 gtk_menu_shell_deselect (menu_shell);
4067 gtk_menu_remove_scroll_timeout (menu);
4068 priv->scroll_step = scroll_fast
4070 : MENU_SCROLL_STEP1;
4072 priv->scroll_timeout =
4073 gdk_threads_add_timeout (scroll_fast
4074 ? MENU_SCROLL_TIMEOUT2
4075 : MENU_SCROLL_TIMEOUT1,
4076 gtk_menu_scroll_timeout, menu);
4078 else if (!enter && !in_arrow && priv->lower_arrow_prelight)
4080 gtk_menu_stop_scrolling (menu);
4084 /* check if the button isn't insensitive before
4085 * changing it to something else.
4087 if ((priv->lower_arrow_state & GTK_STATE_FLAG_INSENSITIVE) == 0)
4089 GtkStateFlags arrow_state = 0;
4092 arrow_state |= GTK_STATE_FLAG_ACTIVE;
4094 if (priv->lower_arrow_prelight)
4095 arrow_state |= GTK_STATE_FLAG_PRELIGHT;
4097 if (arrow_state != priv->lower_arrow_state)
4099 priv->lower_arrow_state = arrow_state;
4101 gdk_window_invalidate_rect (gtk_widget_get_window (GTK_WIDGET (menu)),
4109 gtk_menu_enter_notify (GtkWidget *widget,
4110 GdkEventCrossing *event)
4112 GtkWidget *menu_item;
4114 GdkDevice *source_device;
4116 if (event->mode == GDK_CROSSING_GTK_GRAB ||
4117 event->mode == GDK_CROSSING_GTK_UNGRAB ||
4118 event->mode == GDK_CROSSING_STATE_CHANGED)
4121 source_device = gdk_event_get_source_device ((GdkEvent *) event);
4122 menu_item = gtk_get_event_widget ((GdkEvent*) event);
4124 if (GTK_IS_MENU (widget) &&
4125 gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
4127 GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
4129 if (!menu_shell->priv->ignore_enter)
4130 gtk_menu_handle_scrolling (GTK_MENU (widget),
4131 event->x_root, event->y_root, TRUE, TRUE);
4134 if (gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN &&
4135 GTK_IS_MENU_ITEM (menu_item))
4137 GtkWidget *menu = gtk_widget_get_parent (menu_item);
4139 if (GTK_IS_MENU (menu))
4141 GtkMenuPrivate *priv = (GTK_MENU (menu))->priv;
4142 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
4144 if (priv->seen_item_enter)
4146 /* This is the second enter we see for an item
4147 * on this menu. This means a release should always
4150 menu_shell->priv->activate_time = 0;
4152 else if ((event->detail != GDK_NOTIFY_NONLINEAR &&
4153 event->detail != GDK_NOTIFY_NONLINEAR_VIRTUAL))
4155 if (definitely_within_item (menu_item, event->x, event->y))
4157 /* This is an actual user-enter (ie. not a pop-under)
4158 * In this case, the user must either have entered
4159 * sufficiently far enough into the item, or he must move
4160 * far enough away from the enter point. (see
4161 * gtk_menu_motion_notify())
4163 menu_shell->priv->activate_time = 0;
4167 priv->seen_item_enter = TRUE;
4171 /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
4172 * will not correspond to the event widget's parent. Check to see
4173 * if we are in the parent's navigation region.
4175 parent = gtk_widget_get_parent (menu_item);
4176 if (GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (parent) &&
4177 gtk_menu_navigating_submenu (GTK_MENU (parent),
4178 event->x_root, event->y_root))
4181 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (widget, event);
4185 gtk_menu_leave_notify (GtkWidget *widget,
4186 GdkEventCrossing *event)
4188 GtkMenuShell *menu_shell;
4190 GtkMenuItem *menu_item;
4191 GtkWidget *event_widget;
4192 GdkDevice *source_device;
4194 if (event->mode == GDK_CROSSING_GTK_GRAB ||
4195 event->mode == GDK_CROSSING_GTK_UNGRAB ||
4196 event->mode == GDK_CROSSING_STATE_CHANGED)
4199 menu = GTK_MENU (widget);
4200 menu_shell = GTK_MENU_SHELL (widget);
4202 if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
4205 source_device = gdk_event_get_source_device ((GdkEvent *) event);
4207 if (gdk_device_get_source (source_device) != GDK_SOURCE_TOUCHSCREEN)
4208 gtk_menu_handle_scrolling (menu, event->x_root, event->y_root, FALSE, TRUE);
4210 event_widget = gtk_get_event_widget ((GdkEvent*) event);
4212 if (!GTK_IS_MENU_ITEM (event_widget))
4215 menu_item = GTK_MENU_ITEM (event_widget);
4217 /* Here we check to see if we're leaving an active menu item
4218 * with a submenu, in which case we enter submenu navigation mode.
4220 if (menu_shell->priv->active_menu_item != NULL
4221 && menu_item->priv->submenu != NULL
4222 && menu_item->priv->submenu_placement == GTK_LEFT_RIGHT)
4224 if (GTK_MENU_SHELL (menu_item->priv->submenu)->priv->active)
4226 gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
4229 else if (menu_item == GTK_MENU_ITEM (menu_shell->priv->active_menu_item))
4231 /* We are leaving an active menu item with nonactive submenu.
4232 * Deselect it so we don't surprise the user with by popping
4233 * up a submenu _after_ he left the item.
4235 gtk_menu_shell_deselect (menu_shell);
4240 return GTK_WIDGET_CLASS (gtk_menu_parent_class)->leave_notify_event (widget, event);
4244 pointer_on_menu_widget (GtkMenu *menu,
4248 GtkMenuPrivate *priv = menu->priv;
4249 GtkAllocation allocation;
4250 gint window_x, window_y;
4252 gtk_widget_get_allocation (GTK_WIDGET (menu), &allocation);
4253 gdk_window_get_position (gtk_widget_get_window (priv->toplevel),
4254 &window_x, &window_y);
4256 if (x_root >= window_x && x_root < window_x + allocation.width &&
4257 y_root >= window_y && y_root < window_y + allocation.height)
4264 gtk_menu_captured_event (GtkWidget *widget,
4267 GdkDevice *source_device;
4268 gboolean retval = FALSE;
4269 GtkMenuPrivate *priv;
4271 gdouble x_root, y_root;
4273 GdkModifierType state;
4275 menu = GTK_MENU (widget);
4278 if (!priv->upper_arrow_visible && !priv->lower_arrow_visible)
4281 source_device = gdk_event_get_source_device (event);
4282 gdk_event_get_root_coords (event, &x_root, &y_root);
4284 switch (event->type)
4286 case GDK_TOUCH_BEGIN:
4287 case GDK_BUTTON_PRESS:
4288 if ((!gdk_event_get_button (event, &button) || button == 1) &&
4289 gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN &&
4290 pointer_on_menu_widget (menu, x_root, y_root))
4292 priv->drag_start_y = event->button.y_root;
4293 priv->initial_drag_offset = priv->scroll_offset;
4294 priv->drag_scroll_started = FALSE;
4297 priv->drag_start_y = -1;
4299 priv->drag_already_pressed = TRUE;
4302 case GDK_BUTTON_RELEASE:
4303 if (priv->drag_scroll_started)
4305 priv->drag_scroll_started = FALSE;
4306 priv->drag_start_y = -1;
4307 priv->drag_already_pressed = FALSE;
4311 case GDK_TOUCH_UPDATE:
4312 case GDK_MOTION_NOTIFY:
4313 if ((!gdk_event_get_state (event, &state) || (state & GDK_BUTTON1_MASK)
4315 gdk_device_get_source (source_device) == GDK_SOURCE_TOUCHSCREEN)
4317 if (!priv->drag_already_pressed)
4319 if (pointer_on_menu_widget (menu, x_root, y_root))
4321 priv->drag_start_y = y_root;
4322 priv->initial_drag_offset = priv->scroll_offset;
4323 priv->drag_scroll_started = FALSE;
4326 priv->drag_start_y = -1;
4328 priv->drag_already_pressed = TRUE;
4331 if (priv->drag_start_y < 0 && !priv->drag_scroll_started)
4334 if (priv->drag_scroll_started)
4336 gint offset, view_height;
4337 GtkBorder arrow_border;
4340 y_diff = y_root - priv->drag_start_y;
4341 offset = priv->initial_drag_offset - y_diff;
4343 view_height = gdk_window_get_height (gtk_widget_get_window (widget));
4344 get_arrows_border (menu, &arrow_border);
4346 if (priv->upper_arrow_visible)
4347 view_height -= arrow_border.top;
4349 if (priv->lower_arrow_visible)
4350 view_height -= arrow_border.bottom;
4352 offset = CLAMP (offset, 0, priv->requested_height - view_height);
4353 gtk_menu_scroll_to (menu, offset);
4357 else if (gtk_drag_check_threshold (widget,
4358 0, priv->drag_start_y,
4361 priv->drag_scroll_started = TRUE;
4362 gtk_menu_shell_deselect (GTK_MENU_SHELL (menu));
4367 case GDK_ENTER_NOTIFY:
4368 case GDK_LEAVE_NOTIFY:
4369 if (priv->drag_scroll_started)
4380 gtk_menu_stop_navigating_submenu (GtkMenu *menu)
4382 GtkMenuPrivate *priv = menu->priv;
4384 priv->navigation_x = 0;
4385 priv->navigation_y = 0;
4386 priv->navigation_width = 0;
4387 priv->navigation_height = 0;
4389 if (priv->navigation_timeout)
4391 g_source_remove (priv->navigation_timeout);
4392 priv->navigation_timeout = 0;
4396 /* When the timeout is elapsed, the navigation region is destroyed
4397 * and the menuitem under the pointer (if any) is selected.
4400 gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
4402 GtkMenuPopdownData *popdown_data = user_data;
4403 GtkMenu *menu = popdown_data->menu;
4404 GtkMenuPrivate *priv = menu->priv;
4405 GdkWindow *child_window;
4407 gtk_menu_stop_navigating_submenu (menu);
4409 if (gtk_widget_get_realized (GTK_WIDGET (menu)))
4411 child_window = gdk_window_get_device_position (priv->bin_window,
4412 popdown_data->device,
4417 GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
4419 send_event->crossing.window = g_object_ref (child_window);
4420 send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
4421 send_event->crossing.send_event = TRUE;
4422 gdk_event_set_device (send_event, popdown_data->device);
4424 GTK_WIDGET_CLASS (gtk_menu_parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
4426 gdk_event_free (send_event);
4434 gtk_menu_navigating_submenu (GtkMenu *menu,
4438 GtkMenuPrivate *priv = menu->priv;
4441 if (!gtk_menu_has_navigation_triangle (menu))
4444 width = priv->navigation_width;
4445 height = priv->navigation_height;
4447 /* Check if x/y are in the triangle spanned by the navigation parameters */
4449 /* 1) Move the coordinates so the triangle starts at 0,0 */
4450 event_x -= priv->navigation_x;
4451 event_y -= priv->navigation_y;
4453 /* 2) Ensure both legs move along the positive axis */
4465 /* 3) Check that the given coordinate is inside the triangle. The formula
4466 * is a transformed form of this formula: x/w + y/h <= 1
4468 if (event_x >= 0 && event_y >= 0 &&
4469 event_x * height + event_y * width <= width * height)
4475 gtk_menu_stop_navigating_submenu (menu);
4481 gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
4482 GtkMenuItem *menu_item,
4483 GdkEventCrossing *event)
4485 GtkMenuPrivate *priv = menu->priv;
4486 gint submenu_left = 0;
4487 gint submenu_right = 0;
4488 gint submenu_top = 0;
4489 gint submenu_bottom = 0;
4491 GtkWidget *event_widget;
4492 GtkMenuPopdownData *popdown_data;
4495 g_return_if_fail (menu_item->priv->submenu != NULL);
4496 g_return_if_fail (event != NULL);
4498 event_widget = gtk_get_event_widget ((GdkEvent*) event);
4500 window = gtk_widget_get_window (menu_item->priv->submenu);
4501 gdk_window_get_origin (window, &submenu_left, &submenu_top);
4503 submenu_right = submenu_left + gdk_window_get_width (window);
4504 submenu_bottom = submenu_top + gdk_window_get_height (window);
4506 width = gdk_window_get_width (gtk_widget_get_window (event_widget));
4508 if (event->x >= 0 && event->x < width)
4512 gtk_menu_stop_navigating_submenu (menu);
4514 /* The navigation region is the triangle closest to the x/y
4515 * location of the rectangle. This is why the width or height
4518 if (menu_item->priv->submenu_direction == GTK_DIRECTION_RIGHT)
4521 priv->navigation_x = submenu_left;
4522 priv->navigation_width = event->x_root - submenu_left;
4527 priv->navigation_x = submenu_right;
4528 priv->navigation_width = event->x_root - submenu_right;
4534 priv->navigation_y = event->y_root;
4535 priv->navigation_height = submenu_top - event->y_root - NAVIGATION_REGION_OVERSHOOT;
4537 if (priv->navigation_height >= 0)
4543 priv->navigation_y = event->y_root;
4544 priv->navigation_height = submenu_bottom - event->y_root + NAVIGATION_REGION_OVERSHOOT;
4546 if (priv->navigation_height <= 0)
4550 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
4551 "gtk-menu-popdown-delay", &popdown_delay,
4554 popdown_data = g_new (GtkMenuPopdownData, 1);
4555 popdown_data->menu = menu;
4556 popdown_data->device = gdk_event_get_device ((GdkEvent *) event);
4558 priv->navigation_timeout = gdk_threads_add_timeout_full (G_PRIORITY_DEFAULT,
4560 gtk_menu_stop_navigating_submenu_cb,
4562 (GDestroyNotify) g_free);
4567 gtk_menu_deactivate (GtkMenuShell *menu_shell)
4571 g_return_if_fail (GTK_IS_MENU (menu_shell));
4573 parent = menu_shell->priv->parent_menu_shell;
4575 menu_shell->priv->activate_time = 0;
4576 gtk_menu_popdown (GTK_MENU (menu_shell));
4579 gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
4583 gtk_menu_position (GtkMenu *menu,
4584 gboolean set_scroll_offset)
4586 GtkMenuPrivate *priv = menu->priv;
4588 GtkRequisition requisition;
4592 GdkScreen *pointer_screen;
4593 GdkRectangle monitor;
4596 widget = GTK_WIDGET (menu);
4598 screen = gtk_widget_get_screen (widget);
4599 pointer = _gtk_menu_shell_get_grab_device (GTK_MENU_SHELL (menu));
4600 gdk_device_get_position (pointer, &pointer_screen, &x, &y);
4602 /* Realize so we have the proper width and heigh to figure out
4603 * the right place to popup the menu.
4605 gtk_widget_realize (priv->toplevel);
4606 requisition.width = gtk_widget_get_allocated_width (widget);
4607 requisition.height = gtk_widget_get_allocated_height (widget);
4609 if (pointer_screen != screen)
4611 /* Pointer is on a different screen; roughly center the
4612 * menu on the screen. If someone was using multiscreen
4613 * + Xinerama together they'd probably want something
4614 * fancier; but that is likely to be vanishingly rare.
4616 x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
4617 y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
4620 priv->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
4621 priv->initially_pushed_in = FALSE;
4623 /* Set the type hint here to allow custom position functions
4624 * to set a different hint
4626 if (!gtk_widget_get_visible (priv->toplevel))
4627 gtk_window_set_type_hint (GTK_WINDOW (priv->toplevel), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
4629 if (priv->position_func)
4631 (* priv->position_func) (menu, &x, &y, &priv->initially_pushed_in,
4632 priv->position_func_data);
4634 if (priv->monitor_num < 0)
4635 priv->monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
4637 gdk_screen_get_monitor_workarea (screen, priv->monitor_num, &monitor);
4641 gint space_left, space_right, space_above, space_below;
4645 gboolean rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
4647 get_menu_padding (widget, &padding);
4649 /* The placement of popup menus horizontally works like this (with
4650 * RTL in parentheses)
4652 * - If there is enough room to the right (left) of the mouse cursor,
4653 * position the menu there.
4655 * - Otherwise, if if there is enough room to the left (right) of the
4656 * mouse cursor, position the menu there.
4658 * - Otherwise if the menu is smaller than the monitor, position it
4659 * on the side of the mouse cursor that has the most space available
4661 * - Otherwise (if there is simply not enough room for the menu on the
4662 * monitor), position it as far left (right) as possible.
4664 * Positioning in the vertical direction is similar: first try below
4665 * mouse cursor, then above.
4667 gdk_screen_get_monitor_workarea (screen, priv->monitor_num, &monitor);
4669 space_left = x - monitor.x;
4670 space_right = monitor.x + monitor.width - x - 1;
4671 space_above = y - monitor.y;
4672 space_below = monitor.y + monitor.height - y - 1;
4674 /* Position horizontally. */
4676 /* the amount of space we need to position the menu.
4677 * Note the menu is offset "thickness" pixels
4679 needed_width = requisition.width - padding.left;
4681 if (needed_width <= space_left ||
4682 needed_width <= space_right)
4684 if ((rtl && needed_width <= space_left) ||
4685 (!rtl && needed_width > space_right))
4688 x = x + padding.left - requisition.width + 1;
4692 /* position right */
4693 x = x - padding.right;
4696 /* x is clamped on-screen further down */
4698 else if (requisition.width <= monitor.width)
4700 /* the menu is too big to fit on either side of the mouse
4701 * cursor, but smaller than the monitor. Position it on
4702 * the side that has the most space
4704 if (space_left > space_right)
4712 x = monitor.x + monitor.width - requisition.width;
4715 else /* menu is simply too big for the monitor */
4720 x = monitor.x + monitor.width - requisition.width;
4729 /* Position vertically.
4730 * The algorithm is the same as above, but simpler
4731 * because we don't have to take RTL into account.
4733 needed_height = requisition.height - padding.top;
4735 if (needed_height <= space_above ||
4736 needed_height <= space_below)
4738 if (needed_height <= space_below)
4739 y = y - padding.top;
4741 y = y + padding.bottom - requisition.height + 1;
4743 y = CLAMP (y, monitor.y,
4744 monitor.y + monitor.height - requisition.height);
4746 else if (needed_height > space_below && needed_height > space_above)
4748 if (space_below >= space_above)
4749 y = monitor.y + monitor.height - requisition.height;
4761 if (y + requisition.height > monitor.y + monitor.height)
4763 if (priv->initially_pushed_in)
4764 scroll_offset += (monitor.y + monitor.height) - requisition.height - y;
4765 y = (monitor.y + monitor.height) - requisition.height;
4770 if (priv->initially_pushed_in)
4771 scroll_offset += monitor.y - y;
4775 x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
4777 if (GTK_MENU_SHELL (menu)->priv->active)
4779 priv->have_position = TRUE;
4780 priv->position_x = x;
4781 priv->position_y = y;
4784 if (scroll_offset != 0)
4786 GtkBorder arrow_border;
4788 get_arrows_border (menu, &arrow_border);
4789 scroll_offset += arrow_border.top;
4792 gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->priv->active ? priv->toplevel : priv->tearoff_window),
4795 if (!GTK_MENU_SHELL (menu)->priv->active)
4797 gtk_window_resize (GTK_WINDOW (priv->tearoff_window),
4798 requisition.width, requisition.height);
4801 if (set_scroll_offset)
4802 priv->scroll_offset = scroll_offset;
4806 gtk_menu_remove_scroll_timeout (GtkMenu *menu)
4808 GtkMenuPrivate *priv = menu->priv;
4810 if (priv->scroll_timeout)
4812 g_source_remove (priv->scroll_timeout);
4813 priv->scroll_timeout = 0;
4818 gtk_menu_stop_scrolling (GtkMenu *menu)
4820 GtkMenuPrivate *priv = menu->priv;
4822 gtk_menu_remove_scroll_timeout (menu);
4823 priv->upper_arrow_prelight = FALSE;
4824 priv->lower_arrow_prelight = FALSE;
4828 gtk_menu_scroll_to (GtkMenu *menu,
4831 GtkMenuPrivate *priv = menu->priv;
4832 GtkBorder arrow_border, padding;
4835 gint view_width, view_height;
4838 guint vertical_padding;
4839 guint horizontal_padding;
4840 gboolean double_arrows;
4842 widget = GTK_WIDGET (menu);
4844 if (priv->tearoff_active && priv->tearoff_adjustment)
4845 gtk_adjustment_set_value (priv->tearoff_adjustment, offset);
4847 /* Move/resize the viewport according to arrows: */
4848 view_width = gtk_widget_get_allocated_width (widget);
4849 view_height = gtk_widget_get_allocated_height (widget);
4851 gtk_widget_style_get (GTK_WIDGET (menu),
4852 "vertical-padding", &vertical_padding,
4853 "horizontal-padding", &horizontal_padding,
4856 get_menu_padding (widget, &padding);
4857 double_arrows = get_double_arrows (menu);
4859 border_width = gtk_container_get_border_width (GTK_CONTAINER (menu));
4861 view_width -= (2 * (border_width + horizontal_padding)) + padding.left + padding.right;
4862 view_height -= (2 * (border_width + vertical_padding)) + padding.top + padding.bottom;
4863 menu_height = priv->requested_height - (2 * (border_width + vertical_padding)) -
4864 padding.top - padding.bottom;
4866 x = border_width + padding.left + horizontal_padding;
4867 y = border_width + padding.top + vertical_padding;
4869 if (double_arrows && !priv->tearoff_active)
4871 if (view_height < menu_height ||
4872 (offset > 0 && priv->scroll_offset > 0) ||
4873 (offset < 0 && priv->scroll_offset < 0))
4875 GtkStateFlags upper_arrow_previous_state = priv->upper_arrow_state;
4876 GtkStateFlags lower_arrow_previous_state = priv->lower_arrow_state;
4878 if (!priv->upper_arrow_visible || !priv->lower_arrow_visible)
4879 gtk_widget_queue_draw (GTK_WIDGET (menu));
4881 priv->upper_arrow_visible = priv->lower_arrow_visible = TRUE;
4883 get_arrows_border (menu, &arrow_border);
4884 y += arrow_border.top;
4885 view_height -= arrow_border.top;
4886 view_height -= arrow_border.bottom;
4889 priv->upper_arrow_state |= GTK_STATE_FLAG_INSENSITIVE;
4892 priv->upper_arrow_state &= ~(GTK_STATE_FLAG_INSENSITIVE);
4894 if (priv->upper_arrow_prelight)
4895 priv->upper_arrow_state |= GTK_STATE_FLAG_PRELIGHT;
4897 priv->upper_arrow_state &= ~(GTK_STATE_FLAG_PRELIGHT);
4900 if (offset >= menu_height - view_height)
4901 priv->lower_arrow_state |= GTK_STATE_FLAG_INSENSITIVE;
4904 priv->lower_arrow_state &= ~(GTK_STATE_FLAG_INSENSITIVE);
4906 if (priv->lower_arrow_prelight)
4907 priv->lower_arrow_state |= GTK_STATE_FLAG_PRELIGHT;
4909 priv->lower_arrow_state &= ~(GTK_STATE_FLAG_PRELIGHT);
4912 if ((priv->upper_arrow_state != upper_arrow_previous_state) ||
4913 (priv->lower_arrow_state != lower_arrow_previous_state))
4914 gtk_widget_queue_draw (GTK_WIDGET (menu));
4916 if ((upper_arrow_previous_state & GTK_STATE_FLAG_INSENSITIVE) == 0 &&
4917 (priv->upper_arrow_state & GTK_STATE_FLAG_INSENSITIVE) != 0)
4919 /* At the upper border, possibly remove timeout */
4920 if (priv->scroll_step < 0)
4922 gtk_menu_stop_scrolling (menu);
4923 gtk_widget_queue_draw (GTK_WIDGET (menu));
4927 if ((lower_arrow_previous_state & GTK_STATE_FLAG_INSENSITIVE) == 0 &&
4928 (priv->lower_arrow_state & GTK_STATE_FLAG_INSENSITIVE) != 0)
4930 /* At the lower border, possibly remove timeout */
4931 if (priv->scroll_step > 0)
4933 gtk_menu_stop_scrolling (menu);
4934 gtk_widget_queue_draw (GTK_WIDGET (menu));
4938 else if (priv->upper_arrow_visible || priv->lower_arrow_visible)
4942 priv->upper_arrow_visible = priv->lower_arrow_visible = FALSE;
4943 priv->upper_arrow_prelight = priv->lower_arrow_prelight = FALSE;
4945 gtk_menu_stop_scrolling (menu);
4946 gtk_widget_queue_draw (GTK_WIDGET (menu));
4949 else if (!priv->tearoff_active)
4951 gboolean last_visible;
4953 last_visible = priv->upper_arrow_visible;
4954 priv->upper_arrow_visible = offset > 0;
4956 /* upper_arrow_visible may have changed, so requery the border */
4957 get_arrows_border (menu, &arrow_border);
4958 view_height -= arrow_border.top;
4960 if ((last_visible != priv->upper_arrow_visible) &&
4961 !priv->upper_arrow_visible)
4963 priv->upper_arrow_prelight = FALSE;
4965 /* If we hide the upper arrow, possibly remove timeout */
4966 if (priv->scroll_step < 0)
4968 gtk_menu_stop_scrolling (menu);
4969 gtk_widget_queue_draw (GTK_WIDGET (menu));
4973 last_visible = priv->lower_arrow_visible;
4974 priv->lower_arrow_visible = offset < menu_height - view_height;
4976 /* lower_arrow_visible may have changed, so requery the border */
4977 get_arrows_border (menu, &arrow_border);
4978 view_height -= arrow_border.bottom;
4980 if ((last_visible != priv->lower_arrow_visible) &&
4981 !priv->lower_arrow_visible)
4983 priv->lower_arrow_prelight = FALSE;
4985 /* If we hide the lower arrow, possibly remove timeout */
4986 if (priv->scroll_step > 0)
4988 gtk_menu_stop_scrolling (menu);
4989 gtk_widget_queue_draw (GTK_WIDGET (menu));
4993 y += arrow_border.top;
4996 /* Scroll the menu: */
4997 if (gtk_widget_get_realized (widget))
4998 gdk_window_move (priv->bin_window, 0, -offset);
5000 if (gtk_widget_get_realized (widget))
5001 gdk_window_move_resize (priv->view_window, x, y, view_width, view_height);
5003 priv->scroll_offset = offset;
5007 compute_child_offset (GtkMenu *menu,
5008 GtkWidget *menu_item,
5011 gboolean *is_last_child)
5013 GtkMenuPrivate *priv = menu->priv;
5014 gint item_top_attach;
5015 gint item_bottom_attach;
5016 gint child_offset = 0;
5019 get_effective_child_attach (menu_item, NULL, NULL,
5020 &item_top_attach, &item_bottom_attach);
5022 /* there is a possibility that we get called before _size_request,
5023 * so check the height table for safety.
5025 if (!priv->heights || priv->heights_length < gtk_menu_get_n_rows (menu))
5028 /* when we have a row with only invisible children, its height will
5029 * be zero, so there's no need to check WIDGET_VISIBLE here
5031 for (i = 0; i < item_top_attach; i++)
5032 child_offset += priv->heights[i];
5035 *is_last_child = (item_bottom_attach == gtk_menu_get_n_rows (menu));
5037 *offset = child_offset;
5039 *height = priv->heights[item_top_attach];
5045 gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
5046 GtkWidget *menu_item)
5048 GtkMenu *menu = GTK_MENU (menu_shell);
5049 GtkMenuPrivate *priv = menu->priv;
5050 GtkWidget *widget = GTK_WIDGET (menu_shell);
5051 gint child_offset, child_height;
5055 gboolean last_child = 0;
5057 /* We need to check if the selected item fully visible.
5058 * If not we need to scroll the menu so that it becomes fully
5061 if (compute_child_offset (menu, menu_item,
5062 &child_offset, &child_height, &last_child))
5064 guint vertical_padding;
5065 gboolean double_arrows;
5068 y = priv->scroll_offset;
5069 height = gdk_window_get_height (gtk_widget_get_window (widget));
5071 gtk_widget_style_get (widget,
5072 "vertical-padding", &vertical_padding,
5075 double_arrows = get_double_arrows (menu);
5076 get_menu_padding (widget, &padding);
5078 height -= 2 * gtk_container_get_border_width (GTK_CONTAINER (menu)) +
5079 padding.top + padding.bottom +
5080 2 * vertical_padding;
5081 if (child_offset < y)
5083 /* Ignore the enter event we might get if the pointer
5086 menu_shell->priv->ignore_enter = TRUE;
5087 gtk_menu_scroll_to (menu, child_offset);
5091 GtkBorder arrow_border;
5095 get_arrows_border (menu, &arrow_border);
5096 if (!priv->tearoff_active)
5097 arrow_height = arrow_border.top + arrow_border.bottom;
5099 if (child_offset + child_height > y + height - arrow_height)
5102 if ((!last_child && !priv->tearoff_active) || double_arrows)
5103 arrow_height += arrow_border.bottom;
5105 y = child_offset + child_height - height + arrow_height;
5106 if (((y > 0) && !priv->tearoff_active) || double_arrows)
5108 /* Need upper arrow */
5109 arrow_height += arrow_border.top;
5110 y = child_offset + child_height - height + arrow_height;
5112 /* Ignore the enter event we might get if the pointer
5115 menu_shell->priv->ignore_enter = TRUE;
5116 gtk_menu_scroll_to (menu, y);
5123 gtk_menu_select_item (GtkMenuShell *menu_shell,
5124 GtkWidget *menu_item)
5126 GtkMenu *menu = GTK_MENU (menu_shell);
5128 if (gtk_widget_get_realized (GTK_WIDGET (menu)))
5129 gtk_menu_scroll_item_visible (menu_shell, menu_item);
5131 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->select_item (menu_shell, menu_item);
5135 /* Reparent the menu, taking care of the refcounting
5137 * If unrealize is true we force a unrealize while reparenting the parent.
5138 * This can help eliminate flicker in some cases.
5140 * What happens is that when the menu is unrealized and then re-realized,
5141 * the allocations are as follows:
5143 * parent - 1x1 at (0,0)
5144 * child1 - 100x20 at (0,0)
5145 * child2 - 100x20 at (0,20)
5146 * child3 - 100x20 at (0,40)
5148 * That is, the parent is small but the children are full sized. Then,
5149 * when the queued_resize gets processed, the parent gets resized to
5152 * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
5153 * contains the following logic:
5155 * - if a move or resize operation on a window would change the clip
5156 * region on the children, then before the window is resized
5157 * the background for children is temporarily set to None, the
5158 * move/resize done, and the background for the children restored.
5160 * So, at the point where the parent is resized to final size, the
5161 * background for the children is temporarily None, and thus they
5162 * are not cleared to the background color and the previous background
5163 * (the image of the menu) is left in place.
5166 gtk_menu_reparent (GtkMenu *menu,
5167 GtkWidget *new_parent,
5170 GObject *object = G_OBJECT (menu);
5171 GtkWidget *widget = GTK_WIDGET (menu);
5172 gboolean was_floating = g_object_is_floating (object);
5174 g_object_ref_sink (object);
5178 g_object_ref (object);
5179 gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (widget)), widget);
5180 gtk_container_add (GTK_CONTAINER (new_parent), widget);
5181 g_object_unref (object);
5184 gtk_widget_reparent (widget, new_parent);
5187 g_object_force_floating (object);
5189 g_object_unref (object);
5193 gtk_menu_show_all (GtkWidget *widget)
5195 /* Show children, but not self. */
5196 gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
5200 * gtk_menu_set_screen:
5202 * @screen: (allow-none): a #GdkScreen, or %NULL if the screen should be
5203 * determined by the widget the menu is attached to
5205 * Sets the #GdkScreen on which the menu will be displayed.
5210 gtk_menu_set_screen (GtkMenu *menu,
5213 g_return_if_fail (GTK_IS_MENU (menu));
5214 g_return_if_fail (screen == NULL || GDK_IS_SCREEN (screen));
5216 g_object_set_data (G_OBJECT (menu), I_("gtk-menu-explicit-screen"), screen);
5220 menu_change_screen (menu, screen);
5224 GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
5226 attach_widget_screen_changed (attach_widget, NULL, menu);
5233 * @child: a #GtkMenuItem
5234 * @left_attach: The column number to attach the left side of the item to
5235 * @right_attach: The column number to attach the right side of the item to
5236 * @top_attach: The row number to attach the top of the item to
5237 * @bottom_attach: The row number to attach the bottom of the item to
5239 * Adds a new #GtkMenuItem to a (table) menu. The number of 'cells' that
5240 * an item will occupy is specified by @left_attach, @right_attach,
5241 * @top_attach and @bottom_attach. These each represent the leftmost,
5242 * rightmost, uppermost and lower column and row numbers of the table.
5243 * (Columns and rows are indexed from zero).
5245 * Note that this function is not related to gtk_menu_detach().
5250 gtk_menu_attach (GtkMenu *menu,
5255 guint bottom_attach)
5257 GtkMenuShell *menu_shell;
5260 g_return_if_fail (GTK_IS_MENU (menu));
5261 g_return_if_fail (GTK_IS_MENU_ITEM (child));
5262 parent = gtk_widget_get_parent (child);
5263 g_return_if_fail (parent == NULL || parent == GTK_WIDGET (menu));
5264 g_return_if_fail (left_attach < right_attach);
5265 g_return_if_fail (top_attach < bottom_attach);
5267 menu_shell = GTK_MENU_SHELL (menu);
5271 AttachInfo *ai = get_attach_info (child);
5273 ai->left_attach = left_attach;
5274 ai->right_attach = right_attach;
5275 ai->top_attach = top_attach;
5276 ai->bottom_attach = bottom_attach;
5278 menu_shell->priv->children = g_list_append (menu_shell->priv->children, child);
5280 gtk_widget_set_parent (child, GTK_WIDGET (menu));
5282 menu_queue_resize (menu);
5286 gtk_container_child_set (GTK_CONTAINER (parent), child,
5287 "left-attach", left_attach,
5288 "right-attach", right_attach,
5289 "top-attach", top_attach,
5290 "bottom-attach", bottom_attach,
5296 gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
5300 g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
5301 "gtk-menu-popup-delay", &popup_delay,
5308 find_child_containing (GtkMenuShell *menu_shell,
5316 /* find a child which includes the area given by
5317 * left, right, top, bottom.
5319 for (list = menu_shell->priv->children; list; list = list->next)
5323 if (!_gtk_menu_item_is_selectable (list->data))
5326 get_effective_child_attach (list->data, &l, &r, &t, &b);
5328 if (l <= left && right <= r && t <= top && bottom <= b)
5329 return GTK_WIDGET (list->data);
5336 gtk_menu_move_current (GtkMenuShell *menu_shell,
5337 GtkMenuDirectionType direction)
5339 GtkMenu *menu = GTK_MENU (menu_shell);
5342 GtkWidget *match = NULL;
5344 if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
5348 case GTK_MENU_DIR_CHILD:
5349 direction = GTK_MENU_DIR_PARENT;
5351 case GTK_MENU_DIR_PARENT:
5352 direction = GTK_MENU_DIR_CHILD;
5358 /* use special table menu key bindings */
5359 if (menu_shell->priv->active_menu_item && gtk_menu_get_n_columns (menu) > 1)
5361 get_effective_child_attach (menu_shell->priv->active_menu_item, &l, &r, &t, &b);
5363 if (direction == GTK_MENU_DIR_NEXT)
5365 for (i = b; i < gtk_menu_get_n_rows (menu); i++)
5367 match = find_child_containing (menu_shell, l, l + 1, i, i + 1);
5375 for (i = 0; i < t; i++)
5377 match = find_child_containing (menu_shell,
5378 l, l + 1, i, i + 1);
5384 else if (direction == GTK_MENU_DIR_PREV)
5386 for (i = t; i > 0; i--)
5388 match = find_child_containing (menu_shell,
5389 l, l + 1, i - 1, i);
5397 for (i = gtk_menu_get_n_rows (menu); i > b; i--)
5399 match = find_child_containing (menu_shell,
5400 l, l + 1, i - 1, i);
5406 else if (direction == GTK_MENU_DIR_PARENT)
5408 /* we go one left if possible */
5410 match = find_child_containing (menu_shell,
5411 l - 1, l, t, t + 1);
5415 GtkWidget *parent = menu_shell->priv->parent_menu_shell;
5418 || g_list_length (GTK_MENU_SHELL (parent)->priv->children) <= 1)
5419 match = menu_shell->priv->active_menu_item;
5422 else if (direction == GTK_MENU_DIR_CHILD)
5424 /* we go one right if possible */
5425 if (r < gtk_menu_get_n_columns (menu))
5426 match = find_child_containing (menu_shell, r, r + 1, t, t + 1);
5430 GtkWidget *parent = menu_shell->priv->parent_menu_shell;
5432 if (! GTK_MENU_ITEM (menu_shell->priv->active_menu_item)->priv->submenu &&
5434 g_list_length (GTK_MENU_SHELL (parent)->priv->children) <= 1))
5435 match = menu_shell->priv->active_menu_item;
5441 gtk_menu_shell_select_item (menu_shell, match);
5446 GTK_MENU_SHELL_CLASS (gtk_menu_parent_class)->move_current (menu_shell, direction);
5450 get_visible_size (GtkMenu *menu)
5452 GtkMenuPrivate *priv = menu->priv;
5453 GtkAllocation allocation;
5454 GtkWidget *widget = GTK_WIDGET (menu);
5455 GtkContainer *container = GTK_CONTAINER (menu);
5459 gtk_widget_get_allocation (widget, &allocation);
5460 get_menu_padding (widget, &padding);
5462 menu_height = (allocation.height -
5463 (2 * gtk_container_get_border_width (container)) -
5464 padding.top - padding.bottom);
5466 if (!priv->tearoff_active)
5468 GtkBorder arrow_border;
5470 get_arrows_border (menu, &arrow_border);
5471 menu_height -= arrow_border.top;
5472 menu_height -= arrow_border.bottom;
5478 /* Find the sensitive on-screen child containing @y, or if none,
5479 * the nearest selectable onscreen child. (%NULL if none)
5482 child_at (GtkMenu *menu,
5485 GtkMenuPrivate *priv = menu->priv;
5486 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
5487 GtkWidget *child = NULL;
5488 gint child_offset = 0;
5491 gint lower, upper; /* Onscreen bounds */
5493 menu_height = get_visible_size (menu);
5494 lower = priv->scroll_offset;
5495 upper = priv->scroll_offset + menu_height;
5497 for (children = menu_shell->priv->children; children; children = children->next)
5499 if (gtk_widget_get_visible (children->data))
5501 GtkRequisition child_requisition;
5503 gtk_widget_get_preferred_size (children->data,
5504 &child_requisition, NULL);
5506 if (_gtk_menu_item_is_selectable (children->data) &&
5507 child_offset >= lower &&
5508 child_offset + child_requisition.height <= upper)
5510 child = children->data;
5512 if (child_offset + child_requisition.height > y &&
5513 !GTK_IS_TEAROFF_MENU_ITEM (child))
5517 child_offset += child_requisition.height;
5525 get_menu_height (GtkMenu *menu)
5527 GtkMenuPrivate *priv = menu->priv;
5528 GtkAllocation allocation;
5529 GtkWidget *widget = GTK_WIDGET (menu);
5533 gtk_widget_get_allocation (widget, &allocation);
5534 get_menu_padding (widget, &padding);
5536 height = allocation.height;
5537 height -= (gtk_container_get_border_width (GTK_CONTAINER (widget)) * 2) +
5538 padding.top + padding.bottom;
5540 if (!priv->tearoff_active)
5542 GtkBorder arrow_border;
5544 get_arrows_border (menu, &arrow_border);
5545 height -= arrow_border.top;
5546 height -= arrow_border.bottom;
5553 gtk_menu_real_move_scroll (GtkMenu *menu,
5556 GtkMenuPrivate *priv = menu->priv;
5557 gint page_size = get_visible_size (menu);
5558 gint end_position = get_menu_height (menu);
5559 GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
5563 case GTK_SCROLL_PAGE_UP:
5564 case GTK_SCROLL_PAGE_DOWN:
5568 gint child_offset = 0;
5569 gboolean old_upper_arrow_visible;
5572 if (type == GTK_SCROLL_PAGE_UP)
5577 if (menu_shell->priv->active_menu_item)
5581 compute_child_offset (menu, menu_shell->priv->active_menu_item,
5582 &child_offset, &child_height, NULL);
5583 child_offset += child_height / 2;
5586 menu_shell->priv->ignore_enter = TRUE;
5587 old_upper_arrow_visible = priv->upper_arrow_visible && !priv->tearoff_active;
5588 old_offset = priv->scroll_offset;
5590 new_offset = priv->scroll_offset + step;
5591 new_offset = CLAMP (new_offset, 0, end_position - page_size);
5593 gtk_menu_scroll_to (menu, new_offset);
5595 if (menu_shell->priv->active_menu_item)
5597 GtkWidget *new_child;
5598 gboolean new_upper_arrow_visible = priv->upper_arrow_visible && !priv->tearoff_active;
5599 GtkBorder arrow_border;
5600 get_arrows_border (menu, &arrow_border);
5602 if (priv->scroll_offset != old_offset)
5603 step = priv->scroll_offset - old_offset;
5605 step -= (new_upper_arrow_visible - old_upper_arrow_visible) * arrow_border.top;
5607 new_child = child_at (menu, child_offset + step);
5609 gtk_menu_shell_select_item (menu_shell, new_child);
5613 case GTK_SCROLL_START:
5614 /* Ignore the enter event we might get if the pointer is on the menu */
5615 menu_shell->priv->ignore_enter = TRUE;
5616 gtk_menu_scroll_to (menu, 0);
5617 gtk_menu_shell_select_first (menu_shell, TRUE);
5619 case GTK_SCROLL_END:
5620 /* Ignore the enter event we might get if the pointer is on the menu */
5621 menu_shell->priv->ignore_enter = TRUE;
5622 gtk_menu_scroll_to (menu, end_position - page_size);
5623 _gtk_menu_shell_select_last (menu_shell, TRUE);
5631 * gtk_menu_set_monitor:
5633 * @monitor_num: the number of the monitor on which the menu should
5636 * Informs GTK+ on which monitor a menu should be popped up.
5637 * See gdk_screen_get_monitor_geometry().
5639 * This function should be called from a #GtkMenuPositionFunc
5640 * if the menu should not appear on the same monitor as the pointer.
5641 * This information can't be reliably inferred from the coordinates
5642 * returned by a #GtkMenuPositionFunc, since, for very long menus,
5643 * these coordinates may extend beyond the monitor boundaries or even
5644 * the screen boundaries.
5649 gtk_menu_set_monitor (GtkMenu *menu,
5652 GtkMenuPrivate *priv = menu->priv;
5654 g_return_if_fail (GTK_IS_MENU (menu));
5656 priv->monitor_num = monitor_num;
5660 * gtk_menu_get_monitor:
5663 * Retrieves the number of the monitor on which to show the menu.
5665 * Returns: the number of the monitor on which the menu should
5666 * be popped up or -1, if no monitor has been set
5671 gtk_menu_get_monitor (GtkMenu *menu)
5673 g_return_val_if_fail (GTK_IS_MENU (menu), -1);
5675 return menu->priv->monitor_num;
5679 * gtk_menu_get_for_attach_widget:
5680 * @widget: a #GtkWidget
5682 * Returns a list of the menus which are attached to this widget.
5683 * This list is owned by GTK+ and must not be modified.
5685 * Return value: (element-type GtkWidget) (transfer none): the list
5686 * of menus attached to his widget.
5691 gtk_menu_get_for_attach_widget (GtkWidget *widget)
5695 g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
5697 list = g_object_get_data (G_OBJECT (widget), ATTACHED_MENUS);
5703 gtk_menu_grab_notify (GtkWidget *widget,
5704 gboolean was_grabbed)
5707 GtkWidget *toplevel;
5708 GtkWindowGroup *group;
5712 menu = GTK_MENU (widget);
5713 pointer = _gtk_menu_shell_get_grab_device (GTK_MENU_SHELL (widget));
5716 !gtk_widget_device_is_shadowed (widget, pointer))
5719 toplevel = gtk_widget_get_toplevel (widget);
5721 if (!GTK_IS_WINDOW (toplevel))
5724 group = gtk_window_get_group (GTK_WINDOW (toplevel));
5725 grab = gtk_window_group_get_current_device_grab (group, pointer);
5727 if (GTK_MENU_SHELL (widget)->priv->active && !GTK_IS_MENU_SHELL (grab))
5728 gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
5730 menu->priv->drag_scroll_started = FALSE;
5734 * gtk_menu_set_reserve_toggle_size:
5736 * @reserve_toggle_size: whether to reserve size for toggles
5738 * Sets whether the menu should reserve space for drawing toggles
5739 * or icons, regardless of their actual presence.
5744 gtk_menu_set_reserve_toggle_size (GtkMenu *menu,
5745 gboolean reserve_toggle_size)
5747 GtkMenuPrivate *priv = menu->priv;
5748 gboolean no_toggle_size;
5750 g_return_if_fail (GTK_IS_MENU (menu));
5752 no_toggle_size = !reserve_toggle_size;
5754 if (priv->no_toggle_size != no_toggle_size)
5756 priv->no_toggle_size = no_toggle_size;
5758 g_object_notify (G_OBJECT (menu), "reserve-toggle-size");
5763 * gtk_menu_get_reserve_toggle_size:
5766 * Returns whether the menu reserves space for toggles and
5767 * icons, regardless of their actual presence.
5769 * Returns: Whether the menu reserves toggle space
5774 gtk_menu_get_reserve_toggle_size (GtkMenu *menu)
5776 g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
5778 return !menu->priv->no_toggle_size;