/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #define GTK_MENU_INTERNALS #include "gdk/gdkkeysyms.h" #include "gtkbindings.h" #include "gtkmain.h" #include "gtkmarshalers.h" #include "gtkmenubar.h" #include "gtkmenuitem.h" #include "gtkmenushell.h" #include "gtksignal.h" #include "gtktearoffmenuitem.h" #include "gtkwindow.h" #define MENU_SHELL_TIMEOUT 500 enum { DEACTIVATE, SELECTION_DONE, MOVE_CURRENT, ACTIVATE_CURRENT, CANCEL, CYCLE_FOCUS, LAST_SIGNAL }; typedef void (*GtkMenuShellSignal1) (GtkObject *object, GtkMenuDirectionType arg1, gpointer data); typedef void (*GtkMenuShellSignal2) (GtkObject *object, gboolean arg1, gpointer data); /* Terminology: * * A menu item can be "selected", this means that it is displayed * in the prelight state, and if it has a submenu, that submenu * will be popped up. * * A menu is "active" when it is visible onscreen and the user * is selecting from it. A menubar is not active until the user * clicks on one of its menuitems. When a menu is active, * passing the mouse over a submenu will pop it up. * * menu_shell->active_menu_item, is however, not an "active" * menu item (there is no such thing) but rather, the selected * menu item in that MenuShell, if there is one. * * There is also is a concept of the current menu and a current * menu item. The current menu item is the selected menu item * that is furthest down in the heirarchy. (Every active menu_shell * does not necessarily contain a selected menu item, but if * it does, then menu_shell->parent_menu_shell must also contain * a selected menu item. The current menu is the menu that * contains the current menu_item. It will always have a GTK * grab and receive all key presses. * * * Action signals: * * ::move_current (GtkMenuDirection *dir) * Moves the current menu item in direction 'dir': * * GTK_MENU_DIR_PARENT: To the parent menu shell * GTK_MENU_DIR_CHILD: To the child menu shell (if this item has * a submenu. * GTK_MENU_DIR_NEXT/PREV: To the next or previous item * in this menu. * * As a a bit of a hack to get movement between menus and * menubars working, if submenu_placement is different for * the menu and its MenuShell then the following apply: * * - For 'parent' the current menu is not just moved to * the parent, but moved to the previous entry in the parent * - For 'child', if there is no child, then current is * moved to the next item in the parent. * * * ::activate_current (GBoolean *force_hide) * Activate the current item. If 'force_hide' is true, hide * the current menu item always. Otherwise, only hide * it if menu_item->klass->hide_on_activate is true. * * ::cancel () * Cancels the current selection */ static void gtk_menu_shell_class_init (GtkMenuShellClass *klass); static void gtk_menu_shell_init (GtkMenuShell *menu_shell); static void gtk_menu_shell_realize (GtkWidget *widget); static gint gtk_menu_shell_button_press (GtkWidget *widget, GdkEventButton *event); static gint gtk_menu_shell_button_release (GtkWidget *widget, GdkEventButton *event); static gint gtk_menu_shell_key_press (GtkWidget *widget, GdkEventKey *event); static gint gtk_menu_shell_enter_notify (GtkWidget *widget, GdkEventCrossing *event); static gint gtk_menu_shell_leave_notify (GtkWidget *widget, GdkEventCrossing *event); static void gtk_menu_shell_add (GtkContainer *container, GtkWidget *widget); static void gtk_menu_shell_remove (GtkContainer *container, GtkWidget *widget); static void gtk_menu_shell_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); static void gtk_menu_shell_real_insert (GtkMenuShell *menu_shell, GtkWidget *child, gint position); static void gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell); static gint gtk_menu_shell_is_item (GtkMenuShell *menu_shell, GtkWidget *child); static GtkWidget *gtk_menu_shell_get_item (GtkMenuShell *menu_shell, GdkEvent *event); static GtkType gtk_menu_shell_child_type (GtkContainer *container); static void gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell, GtkWidget *menu_item); static void gtk_menu_shell_select_submenu_first (GtkMenuShell *menu_shell); static void gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell, GtkMenuDirectionType direction); static void gtk_real_menu_shell_activate_current (GtkMenuShell *menu_shell, gboolean force_hide); static void gtk_real_menu_shell_cancel (GtkMenuShell *menu_shell); static void gtk_real_menu_shell_cycle_focus (GtkMenuShell *menu_shell, GtkDirectionType dir); static GtkContainerClass *parent_class = NULL; static guint menu_shell_signals[LAST_SIGNAL] = { 0 }; GtkType gtk_menu_shell_get_type (void) { static GtkType menu_shell_type = 0; if (!menu_shell_type) { static const GtkTypeInfo menu_shell_info = { "GtkMenuShell", sizeof (GtkMenuShell), sizeof (GtkMenuShellClass), (GtkClassInitFunc) gtk_menu_shell_class_init, (GtkObjectInitFunc) gtk_menu_shell_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; menu_shell_type = gtk_type_unique (gtk_container_get_type (), &menu_shell_info); } return menu_shell_type; } static guint binding_signal_new (const gchar *signal_name, GType itype, GSignalFlags signal_flags, GCallback handler, GSignalAccumulator accumulator, gpointer accu_data, GSignalCMarshaller c_marshaller, GType return_type, guint n_params, ...) { va_list args; guint signal_id; g_return_val_if_fail (signal_name != NULL, 0); va_start (args, n_params); signal_id = g_signal_new_valist (signal_name, itype, signal_flags, g_cclosure_new (handler, NULL, NULL), accumulator, accu_data, c_marshaller, return_type, n_params, args); va_end (args); return signal_id; } static void gtk_menu_shell_class_init (GtkMenuShellClass *klass) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; GtkBindingSet *binding_set; object_class = (GtkObjectClass*) klass; widget_class = (GtkWidgetClass*) klass; container_class = (GtkContainerClass*) klass; parent_class = gtk_type_class (gtk_container_get_type ()); widget_class->realize = gtk_menu_shell_realize; widget_class->button_press_event = gtk_menu_shell_button_press; widget_class->button_release_event = gtk_menu_shell_button_release; widget_class->key_press_event = gtk_menu_shell_key_press; widget_class->enter_notify_event = gtk_menu_shell_enter_notify; widget_class->leave_notify_event = gtk_menu_shell_leave_notify; container_class->add = gtk_menu_shell_add; container_class->remove = gtk_menu_shell_remove; container_class->forall = gtk_menu_shell_forall; container_class->child_type = gtk_menu_shell_child_type; klass->submenu_placement = GTK_TOP_BOTTOM; klass->deactivate = gtk_real_menu_shell_deactivate; klass->selection_done = NULL; klass->move_current = gtk_real_menu_shell_move_current; klass->activate_current = gtk_real_menu_shell_activate_current; klass->cancel = gtk_real_menu_shell_cancel; klass->select_item = gtk_menu_shell_real_select_item; klass->insert = gtk_menu_shell_real_insert; menu_shell_signals[DEACTIVATE] = gtk_signal_new ("deactivate", GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkMenuShellClass, deactivate), _gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); menu_shell_signals[SELECTION_DONE] = gtk_signal_new ("selection-done", GTK_RUN_FIRST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkMenuShellClass, selection_done), _gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); menu_shell_signals[MOVE_CURRENT] = gtk_signal_new ("move_current", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkMenuShellClass, move_current), _gtk_marshal_VOID__ENUM, GTK_TYPE_NONE, 1, GTK_TYPE_MENU_DIRECTION_TYPE); menu_shell_signals[ACTIVATE_CURRENT] = gtk_signal_new ("activate_current", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkMenuShellClass, activate_current), _gtk_marshal_VOID__BOOLEAN, GTK_TYPE_NONE, 1, GTK_TYPE_BOOL); menu_shell_signals[CANCEL] = gtk_signal_new ("cancel", GTK_RUN_LAST | GTK_RUN_ACTION, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkMenuShellClass, cancel), _gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); menu_shell_signals[CYCLE_FOCUS] = binding_signal_new ("cycle_focus", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST | GTK_RUN_ACTION, G_CALLBACK (gtk_real_menu_shell_cycle_focus), NULL, NULL, _gtk_marshal_VOID__ENUM, GTK_TYPE_NONE, 1, GTK_TYPE_DIRECTION_TYPE); binding_set = gtk_binding_set_by_class (klass); gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, "cancel", 0); gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "activate_current", 1, GTK_TYPE_BOOL, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "activate_current", 1, GTK_TYPE_BOOL, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "activate_current", 1, GTK_TYPE_BOOL, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0, "activate_current", 1, GTK_TYPE_BOOL, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_CONTROL_MASK, "cycle_focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD); gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_CONTROL_MASK, "cycle_focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD); gtk_binding_entry_add_signal (binding_set, GDK_Tab, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "cycle_focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD); gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "cycle_focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD); } static GtkType gtk_menu_shell_child_type (GtkContainer *container) { return GTK_TYPE_MENU_ITEM; } static void gtk_menu_shell_init (GtkMenuShell *menu_shell) { menu_shell->children = NULL; menu_shell->active_menu_item = NULL; menu_shell->parent_menu_shell = NULL; menu_shell->active = FALSE; menu_shell->have_grab = FALSE; menu_shell->have_xgrab = FALSE; menu_shell->ignore_leave = FALSE; menu_shell->button = 0; menu_shell->menu_flag = 0; menu_shell->activate_time = 0; } void gtk_menu_shell_append (GtkMenuShell *menu_shell, GtkWidget *child) { gtk_menu_shell_insert (menu_shell, child, -1); } void gtk_menu_shell_prepend (GtkMenuShell *menu_shell, GtkWidget *child) { gtk_menu_shell_insert (menu_shell, child, 0); } void gtk_menu_shell_insert (GtkMenuShell *menu_shell, GtkWidget *child, gint position) { GtkMenuShellClass *class; g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell)); g_return_if_fail (GTK_IS_MENU_ITEM (child)); class = GTK_MENU_SHELL_GET_CLASS (menu_shell); if (class->insert) class->insert (menu_shell, child, position); } static void gtk_menu_shell_real_insert (GtkMenuShell *menu_shell, GtkWidget *child, gint position) { menu_shell->children = g_list_insert (menu_shell->children, child, position); gtk_widget_set_parent (child, GTK_WIDGET (menu_shell)); } void gtk_menu_shell_deactivate (GtkMenuShell *menu_shell) { g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell)); gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[DEACTIVATE]); } static void gtk_menu_shell_realize (GtkWidget *widget) { GdkWindowAttr attributes; gint attributes_mask; g_return_if_fail (GTK_IS_MENU_SHELL (widget)); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.window_type = GDK_WINDOW_CHILD; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = gtk_widget_get_events (widget); attributes.event_mask |= (GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK); attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_user_data (widget->window, widget); widget->style = gtk_style_attach (widget->style, widget->window); gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); } static gint gtk_menu_shell_button_press (GtkWidget *widget, GdkEventButton *event) { GtkMenuShell *menu_shell; GtkWidget *menu_item; g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (event->type != GDK_BUTTON_PRESS) return FALSE; menu_shell = GTK_MENU_SHELL (widget); if (menu_shell->parent_menu_shell) { return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event); } else if (!menu_shell->active || !menu_shell->button) { if (!menu_shell->active) { gtk_grab_add (GTK_WIDGET (widget)); menu_shell->have_grab = TRUE; menu_shell->active = TRUE; } menu_shell->button = event->button; menu_item = gtk_menu_shell_get_item (menu_shell, (GdkEvent *)event); if (menu_item && _gtk_menu_item_is_selectable (menu_item)) { if ((menu_item->parent == widget) && (menu_item != menu_shell->active_menu_item)) { if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM) g_object_set_data (G_OBJECT (menu_shell), "gtk-menushell-just-activated", GUINT_TO_POINTER (1)); gtk_menu_shell_select_item (menu_shell, menu_item); } } } else { widget = gtk_get_event_widget ((GdkEvent*) event); if (widget == GTK_WIDGET (menu_shell)) { gtk_menu_shell_deactivate (menu_shell); gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]); } } return TRUE; } static gint gtk_menu_shell_button_release (GtkWidget *widget, GdkEventButton *event) { GtkMenuShell *menu_shell; GtkWidget *menu_item; gint deactivate; g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); menu_shell = GTK_MENU_SHELL (widget); if (menu_shell->active) { gboolean deactivate_immediately = FALSE; if (menu_shell->button && (event->button != menu_shell->button)) { menu_shell->button = 0; if (menu_shell->parent_menu_shell) return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event); } menu_shell->button = 0; menu_item = gtk_menu_shell_get_item (menu_shell, (GdkEvent*) event); deactivate = TRUE; if (menu_item && GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM) { if (g_object_get_data (G_OBJECT (menu_shell), "gtk-menushell-just-activated")) g_object_set_data (G_OBJECT (menu_shell), "gtk-menushell-just-activated", NULL); else deactivate_immediately = TRUE; } if ((event->time - menu_shell->activate_time) > MENU_SHELL_TIMEOUT) { if (deactivate_immediately) { gtk_menu_shell_deactivate (menu_shell); return TRUE; } if (menu_item && (menu_shell->active_menu_item == menu_item) && _gtk_menu_item_is_selectable (menu_item)) { if (GTK_MENU_ITEM (menu_item)->submenu == NULL) { gtk_menu_shell_activate_item (menu_shell, menu_item, TRUE); return TRUE; } } else if (menu_item && !_gtk_menu_item_is_selectable (menu_item)) deactivate = FALSE; else if (menu_shell->parent_menu_shell) { menu_shell->active = TRUE; gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event); return TRUE; } } else { /* We only ever want to prevent deactivation on the first * press/release. Setting the time to zero is a bit of a * hack, since we could be being triggered in the first * few fractions of a second after a server time wraparound. * the chances of that happening are ~1/10^6, without * serious harm if we lose. */ menu_shell->activate_time = 0; deactivate = FALSE; } /* If the button click was very fast, or we ended up on a submenu, * leave the menu up */ if (!deactivate || (menu_item && (menu_shell->active_menu_item == menu_item))) { deactivate = FALSE; menu_shell->ignore_leave = TRUE; } else deactivate = TRUE; if (deactivate) { gtk_menu_shell_deactivate (menu_shell); gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]); } } return TRUE; } static gint gtk_menu_shell_key_press (GtkWidget *widget, GdkEventKey *event) { GtkMenuShell *menu_shell; GtkWidget *toplevel; g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); menu_shell = GTK_MENU_SHELL (widget); if (!menu_shell->active_menu_item && menu_shell->parent_menu_shell) return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent *)event); if (_gtk_bindings_activate_event (GTK_OBJECT (widget), event)) return TRUE; toplevel = gtk_widget_get_toplevel (widget); if (GTK_IS_WINDOW (toplevel) && _gtk_window_activate_key (GTK_WINDOW (toplevel), event)) return TRUE; return FALSE; } static gint gtk_menu_shell_enter_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkMenuShell *menu_shell; GtkWidget *menu_item; g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); menu_shell = GTK_MENU_SHELL (widget); if (menu_shell->active) { menu_item = gtk_get_event_widget ((GdkEvent*) event); if (!menu_item || (GTK_IS_MENU_ITEM (menu_item) && !_gtk_menu_item_is_selectable (menu_item))) return TRUE; if ((menu_item->parent == widget) && (menu_shell->active_menu_item != menu_item) && GTK_IS_MENU_ITEM (menu_item)) { if (menu_shell->ignore_enter) return TRUE; if ((event->detail != GDK_NOTIFY_INFERIOR) && (GTK_WIDGET_STATE (menu_item) != GTK_STATE_PRELIGHT)) { gtk_menu_shell_select_item (menu_shell, menu_item); } } else if (menu_shell->parent_menu_shell) { gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event); } } return TRUE; } static gint gtk_menu_shell_leave_notify (GtkWidget *widget, GdkEventCrossing *event) { GtkMenuShell *menu_shell; GtkMenuItem *menu_item; GtkWidget *event_widget; g_return_val_if_fail (GTK_IS_MENU_SHELL (widget), FALSE); g_return_val_if_fail (event != NULL, FALSE); if (GTK_WIDGET_VISIBLE (widget)) { menu_shell = GTK_MENU_SHELL (widget); event_widget = gtk_get_event_widget ((GdkEvent*) event); if (!event_widget || !GTK_IS_MENU_ITEM (event_widget)) return TRUE; menu_item = GTK_MENU_ITEM (event_widget); if (menu_shell->ignore_leave) { menu_shell->ignore_leave = FALSE; return TRUE; } if (!_gtk_menu_item_is_selectable (event_widget)) return TRUE; if ((menu_shell->active_menu_item == event_widget) && (menu_item->submenu == NULL)) { if ((event->detail != GDK_NOTIFY_INFERIOR) && (GTK_WIDGET_STATE (menu_item) != GTK_STATE_NORMAL)) { gtk_menu_shell_deselect (menu_shell); } } else if (menu_shell->parent_menu_shell) { gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent*) event); } } return TRUE; } static void gtk_menu_shell_add (GtkContainer *container, GtkWidget *widget) { gtk_menu_shell_append (GTK_MENU_SHELL (container), widget); } static void gtk_menu_shell_remove (GtkContainer *container, GtkWidget *widget) { GtkMenuShell *menu_shell; gint was_visible; g_return_if_fail (GTK_IS_MENU_SHELL (container)); g_return_if_fail (GTK_IS_MENU_ITEM (widget)); was_visible = GTK_WIDGET_VISIBLE (widget); menu_shell = GTK_MENU_SHELL (container); menu_shell->children = g_list_remove (menu_shell->children, widget); if (widget == menu_shell->active_menu_item) { gtk_item_deselect (GTK_ITEM (menu_shell->active_menu_item)); menu_shell->active_menu_item = NULL; } gtk_widget_unparent (widget); /* queue resize regardless of GTK_WIDGET_VISIBLE (container), * since that's what is needed by toplevels. */ if (was_visible) gtk_widget_queue_resize (GTK_WIDGET (container)); } static void gtk_menu_shell_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkMenuShell *menu_shell; GtkWidget *child; GList *children; g_return_if_fail (GTK_IS_MENU_SHELL (container)); g_return_if_fail (callback != NULL); menu_shell = GTK_MENU_SHELL (container); children = menu_shell->children; while (children) { child = children->data; children = children->next; (* callback) (child, callback_data); } } static void gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell) { if (menu_shell->active) { menu_shell->button = 0; menu_shell->active = FALSE; if (menu_shell->active_menu_item) { gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item)); menu_shell->active_menu_item = NULL; } if (menu_shell->have_grab) { menu_shell->have_grab = FALSE; gtk_grab_remove (GTK_WIDGET (menu_shell)); } if (menu_shell->have_xgrab) { menu_shell->have_xgrab = FALSE; gdk_pointer_ungrab (GDK_CURRENT_TIME); gdk_keyboard_ungrab (GDK_CURRENT_TIME); } } } static gint gtk_menu_shell_is_item (GtkMenuShell *menu_shell, GtkWidget *child) { GtkWidget *parent; g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), FALSE); g_return_val_if_fail (child != NULL, FALSE); parent = child->parent; while (parent && GTK_IS_MENU_SHELL (parent)) { if (parent == (GtkWidget*) menu_shell) return TRUE; parent = GTK_MENU_SHELL (parent)->parent_menu_shell; } return FALSE; } static GtkWidget* gtk_menu_shell_get_item (GtkMenuShell *menu_shell, GdkEvent *event) { GtkWidget *menu_item; menu_item = gtk_get_event_widget ((GdkEvent*) event); while (menu_item && !GTK_IS_MENU_ITEM (menu_item)) menu_item = menu_item->parent; if (menu_item && gtk_menu_shell_is_item (menu_shell, menu_item)) return menu_item; else return NULL; } /* Handlers for action signals */ void gtk_menu_shell_select_item (GtkMenuShell *menu_shell, GtkWidget *menu_item) { GtkMenuShellClass *class; g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell)); g_return_if_fail (GTK_IS_MENU_ITEM (menu_item)); class = GTK_MENU_SHELL_GET_CLASS (menu_shell); if (class->select_item) class->select_item (menu_shell, menu_item); } void _gtk_menu_item_set_placement (GtkMenuItem *menu_item, GtkSubmenuPlacement placement); static void gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell, GtkWidget *menu_item) { gtk_menu_shell_deselect (menu_shell); menu_shell->active_menu_item = menu_item; _gtk_menu_item_set_placement (GTK_MENU_ITEM (menu_shell->active_menu_item), GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement); gtk_menu_item_select (GTK_MENU_ITEM (menu_shell->active_menu_item)); /* This allows the bizarre radio buttons-with-submenus-display-history * behavior */ if (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu) gtk_widget_activate (menu_shell->active_menu_item); } void gtk_menu_shell_deselect (GtkMenuShell *menu_shell) { g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell)); if (menu_shell->active_menu_item) { gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item)); menu_shell->active_menu_item = NULL; } } void gtk_menu_shell_activate_item (GtkMenuShell *menu_shell, GtkWidget *menu_item, gboolean force_deactivate) { GSList *slist, *shells = NULL; gboolean deactivate = force_deactivate; g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell)); g_return_if_fail (GTK_IS_MENU_ITEM (menu_item)); if (!deactivate) deactivate = GTK_MENU_ITEM_GET_CLASS (menu_item)->hide_on_activate; gtk_widget_ref (GTK_WIDGET (menu_shell)); if (deactivate) { GtkMenuShell *parent_menu_shell = menu_shell; do { gtk_widget_ref (GTK_WIDGET (parent_menu_shell)); shells = g_slist_prepend (shells, parent_menu_shell); parent_menu_shell = (GtkMenuShell*) parent_menu_shell->parent_menu_shell; } while (parent_menu_shell); shells = g_slist_reverse (shells); gtk_menu_shell_deactivate (menu_shell); /* flush the x-queue, so any grabs are removed and * the menu is actually taken down */ gdk_flush (); } gtk_widget_activate (menu_item); for (slist = shells; slist; slist = slist->next) { gtk_signal_emit (slist->data, menu_shell_signals[SELECTION_DONE]); gtk_widget_unref (slist->data); } g_slist_free (shells); gtk_widget_unref (GTK_WIDGET (menu_shell)); } /* Distance should be +/- 1 */ static void gtk_menu_shell_move_selected (GtkMenuShell *menu_shell, gint distance) { if (menu_shell->active_menu_item) { GList *node = g_list_find (menu_shell->children, menu_shell->active_menu_item); GList *start_node = node; if (distance > 0) { node = node->next; while (node != start_node && (!node || !_gtk_menu_item_is_selectable (node->data))) { if (!node) node = menu_shell->children; else node = node->next; } } else { node = node->prev; while (node != start_node && (!node || !_gtk_menu_item_is_selectable (node->data))) { if (!node) node = g_list_last (menu_shell->children); else node = node->prev; } } if (node) gtk_menu_shell_select_item (menu_shell, node->data); } } /** * _gtk_menu_shell_select_first: * @menu_shell: a #GtkMenuShell * * Select the first visible child of the menu shell, unless * it's a tearoff item. **/ void _gtk_menu_shell_select_first (GtkMenuShell *menu_shell) { GtkWidget *to_select = NULL; GList *tmp_list; tmp_list = menu_shell->children; while (tmp_list) { GtkWidget *child = tmp_list->data; if (GTK_WIDGET_VISIBLE (child)) { to_select = child; if (!GTK_IS_TEAROFF_MENU_ITEM (child)) break; } tmp_list = tmp_list->next; } if (to_select) gtk_menu_shell_select_item (menu_shell, to_select); } static void gtk_menu_shell_select_submenu_first (GtkMenuShell *menu_shell) { GtkMenuItem *menu_item; menu_item = GTK_MENU_ITEM (menu_shell->active_menu_item); if (menu_item->submenu) _gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu)); } static void gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell, GtkMenuDirectionType direction) { GtkMenuShell *parent_menu_shell = NULL; gboolean had_selection; had_selection = menu_shell->active_menu_item != NULL; if (menu_shell->parent_menu_shell) parent_menu_shell = GTK_MENU_SHELL (menu_shell->parent_menu_shell); switch (direction) { case GTK_MENU_DIR_PARENT: if (parent_menu_shell) { if (GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement == GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement) gtk_menu_shell_deselect (menu_shell); else { gtk_menu_shell_move_selected (parent_menu_shell, -1); gtk_menu_shell_select_submenu_first (parent_menu_shell); } } break; case GTK_MENU_DIR_CHILD: if (menu_shell->active_menu_item && _gtk_menu_item_is_selectable (menu_shell->active_menu_item) && GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu) { gtk_menu_shell_select_submenu_first (menu_shell); } else { /* Try to find a menu running the opposite direction */ while (parent_menu_shell && (GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement == GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement)) { GtkWidget *tmp_widget = parent_menu_shell->parent_menu_shell; if (tmp_widget) parent_menu_shell = GTK_MENU_SHELL (tmp_widget); else parent_menu_shell = NULL; } if (parent_menu_shell) { gtk_menu_shell_move_selected (parent_menu_shell, 1); gtk_menu_shell_select_submenu_first (parent_menu_shell); } } break; case GTK_MENU_DIR_PREV: gtk_menu_shell_move_selected (menu_shell, -1); if (!had_selection && !menu_shell->active_menu_item && menu_shell->children) gtk_menu_shell_select_item (menu_shell, g_list_last (menu_shell->children)->data); break; case GTK_MENU_DIR_NEXT: gtk_menu_shell_move_selected (menu_shell, 1); if (!had_selection && !menu_shell->active_menu_item && menu_shell->children) gtk_menu_shell_select_item (menu_shell, menu_shell->children->data); break; } } static void gtk_real_menu_shell_activate_current (GtkMenuShell *menu_shell, gboolean force_hide) { if (menu_shell->active_menu_item && _gtk_menu_item_is_selectable (menu_shell->active_menu_item) && GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL) { gtk_menu_shell_activate_item (menu_shell, menu_shell->active_menu_item, force_hide); } } static void gtk_real_menu_shell_cancel (GtkMenuShell *menu_shell) { /* Unset the active menu item so gtk_menu_popdown() doesn't see it. */ gtk_menu_shell_deselect (menu_shell); gtk_menu_shell_deactivate (menu_shell); gtk_signal_emit (GTK_OBJECT (menu_shell), menu_shell_signals[SELECTION_DONE]); } static void gtk_real_menu_shell_cycle_focus (GtkMenuShell *menu_shell, GtkDirectionType dir) { while (menu_shell && !GTK_IS_MENU_BAR (menu_shell)) { if (menu_shell->parent_menu_shell) menu_shell = GTK_MENU_SHELL (menu_shell->parent_menu_shell); else menu_shell = NULL; } if (menu_shell) _gtk_menu_bar_cycle_focus (GTK_MENU_BAR (menu_shell), dir); }