AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
34265f4f09
gtk2/gtk/gtkmenushell.c
Owen Taylor 3895bea4df #136672, reported by Christian Persch; fixes based on a patch by Soeren 
Sun Mar 14 19:26:48 2004  Owen Taylor  <otaylor@redhat.com>

        #136672, reported by Christian Persch; fixes based
        on a patch by Soeren Sandmann.

        * gtk/gtkmenu.c: Change the handling of mixed gridded
        and non-gridded menu items; the old method was causing
        major performance problems even with the "avoid relayout
        on destruction" hack put in recently.

        Now we first lay out the gridded items and then put the
        non-gridded items into empty rows / after the gridded items.
        Layout is done in a central menu_shell_ensure_layout(). Also
        avoid emitting property notifications when we initially
        insert or attach items.

        * gtk/gtkmenushell.[ch] gtk/gtkmenu.c: Stop setting the
        unused menu_shell->menu_flag, and document it as unused
        in the header.

        * tests/testactions.c: Add a test of creating/removing
        lots of items.

        * test/testgtk.c: Add some more cruft to the menu test.
2004-03-15 02:03:59 +00:00

1223 lines
34 KiB
C
Raw Blame History

/* 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 <config.h>
#include "gdk/gdkkeysyms.h"
#include "gtkbindings.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkmenubar.h"
#include "gtkmenuitem.h"
#include "gtkmenushell.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 GType 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 };
GType
gtk_menu_shell_get_type (void)
{
static GType menu_shell_type = 0;
if (!menu_shell_type)
{
static const GTypeInfo menu_shell_info =
{
sizeof (GtkMenuShellClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_menu_shell_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkMenuShell),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_menu_shell_init,
NULL, /* value_table */
};
menu_shell_type =
g_type_register_static (GTK_TYPE_CONTAINER, "GtkMenuShell",
&menu_shell_info, G_TYPE_FLAG_ABSTRACT);
}
return menu_shell_type;
}
static void
gtk_menu_shell_class_init (GtkMenuShellClass *klass)
{
GObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkBindingSet *binding_set;
object_class = (GObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
container_class = (GtkContainerClass*) klass;
parent_class = g_type_class_peek_parent (klass);
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] =
g_signal_new ("deactivate",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkMenuShellClass, deactivate),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
menu_shell_signals[SELECTION_DONE] =
g_signal_new ("selection-done",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkMenuShellClass, selection_done),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
menu_shell_signals[MOVE_CURRENT] =
g_signal_new ("move_current",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkMenuShellClass, move_current),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_MENU_DIRECTION_TYPE);
menu_shell_signals[ACTIVATE_CURRENT] =
g_signal_new ("activate_current",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkMenuShellClass, activate_current),
NULL, NULL,
_gtk_marshal_VOID__BOOLEAN,
G_TYPE_NONE, 1,
G_TYPE_BOOLEAN);
menu_shell_signals[CANCEL] =
g_signal_new ("cancel",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkMenuShellClass, cancel),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
menu_shell_signals[CYCLE_FOCUS] =
_gtk_binding_signal_new ("cycle_focus",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_CALLBACK (gtk_real_menu_shell_cycle_focus),
NULL, NULL,
_gtk_marshal_VOID__ENUM,
G_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,
G_TYPE_BOOLEAN,
TRUE);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Enter, 0,
"activate_current", 1,
G_TYPE_BOOLEAN,
TRUE);
gtk_binding_entry_add_signal (binding_set,
GDK_space, 0,
"activate_current", 1,
G_TYPE_BOOLEAN,
FALSE);
gtk_binding_entry_add_signal (binding_set,
GDK_KP_Space, 0,
"activate_current", 1,
G_TYPE_BOOLEAN,
FALSE);
gtk_binding_entry_add_signal (binding_set,
GDK_F10, 0,
"cycle_focus", 1,
GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
gtk_binding_entry_add_signal (binding_set,
GDK_F10, GDK_SHIFT_MASK,
"cycle_focus", 1,
GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
}
static GType
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->button = 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));
g_signal_emit (menu_shell, menu_shell_signals[DEACTIVATE], 0);
}
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);
}
void
_gtk_menu_shell_activate (GtkMenuShell *menu_shell)
{
if (!menu_shell->active)
{
gtk_grab_add (GTK_WIDGET (menu_shell));
menu_shell->have_grab = TRUE;
menu_shell->active = TRUE;
}
}
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)
{
_gtk_menu_shell_activate (menu_shell);
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);
g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
}
}
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;
}
/* If we ended up on an item with a submenu, leave the menu up.
*/
if (menu_item && (menu_shell->active_menu_item == menu_item))
deactivate = FALSE;
}
else /* a very fast press-release */
{
/* 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 (deactivate)
{
gtk_menu_shell_deactivate (menu_shell);
g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
}
}
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 (!_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)
{
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu_shell));
menu_shell->have_xgrab = FALSE;
gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
gdk_display_keyboard_ungrab (display, 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 &&
!(menu_shell->active &&
menu_shell->active_menu_item == menu_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);
if (!_gtk_menu_item_is_selectable (menu_item))
return;
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;
g_object_ref (menu_shell);
if (deactivate)
{
GtkMenuShell *parent_menu_shell = menu_shell;
do
{
g_object_ref (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_display_sync (gtk_widget_get_display (menu_item));
}
gtk_widget_activate (menu_item);
for (slist = shells; slist; slist = slist->next)
{
g_signal_emit (slist->data, menu_shell_signals[SELECTION_DONE], 0);
g_object_unref (slist->data);
}
g_slist_free (shells);
g_object_unref (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
* @search_sensitive: if %TRUE, search for the first selectable
* menu item, otherwise select nothing if
* the first item isn't sensitive. This
* should be %FALSE if the menu is being
* popped up initially.
*
* Select the first visible or selectable child of the menu shell;
* don't select tearoff items unless the only item is a tearoff
* item.
*
* Since: 2.2
**/
void
gtk_menu_shell_select_first (GtkMenuShell *menu_shell,
gboolean search_sensitive)
{
GtkWidget *to_select = NULL;
GList *tmp_list;
tmp_list = menu_shell->children;
while (tmp_list)
{
GtkWidget *child = tmp_list->data;
if ((!search_sensitive && GTK_WIDGET_VISIBLE (child)) ||
_gtk_menu_item_is_selectable (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);
}
void
_gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
gboolean search_sensitive)
{
GtkWidget *to_select = NULL;
GList *tmp_list;
tmp_list = g_list_last (menu_shell->children);
while (tmp_list)
{
GtkWidget *child = tmp_list->data;
if ((!search_sensitive && GTK_WIDGET_VISIBLE (child)) ||
_gtk_menu_item_is_selectable (child))
{
to_select = child;
if (!GTK_IS_TEAROFF_MENU_ITEM (child))
break;
}
tmp_list = tmp_list->prev;
}
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), TRUE);
}
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);
if (gtk_widget_get_direction (GTK_WIDGET (menu_shell)) == GTK_TEXT_DIR_RTL)
{
switch (direction)
{
case GTK_MENU_DIR_PARENT:
direction = GTK_MENU_DIR_CHILD;
break;
case GTK_MENU_DIR_CHILD:
direction = GTK_MENU_DIR_PARENT;
break;
case GTK_MENU_DIR_PREV:
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM)
direction = GTK_MENU_DIR_NEXT;
break;
case GTK_MENU_DIR_NEXT:
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM)
direction = GTK_MENU_DIR_PREV;
break;
default: ;
}
}
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);
}
}
/* If there is no parent and the submenu is in the opposite direction
* to the menu, then make the PARENT direction wrap around to
* the bottom of the submenu.
*/
else 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)
{
GtkMenuShell *submenu = GTK_MENU_SHELL (GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu);
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement !=
GTK_MENU_SHELL_GET_CLASS (submenu)->submenu_placement)
_gtk_menu_shell_select_last (submenu, TRUE);
}
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_last (menu_shell, TRUE);
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_first (menu_shell, TRUE);
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);
g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
}
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);
}
gint
_gtk_menu_shell_get_popup_delay (GtkMenuShell *menu_shell)
{
GtkMenuShellClass *klass = GTK_MENU_SHELL_GET_CLASS (menu_shell);
if (klass->get_popup_delay)
{
return klass->get_popup_delay (menu_shell);
}
else
{
gint popup_delay;
GtkWidget *widget = GTK_WIDGET (menu_shell);
g_object_get (gtk_widget_get_settings (widget),
"gtk-menu-popup-delay", &popup_delay,
NULL);
return popup_delay;
}
}
/**
* gtk_menu_shell_cancel:
* @menu_shell: a #GtkMenuShell
*
* Cancels the selection within the menu shell.
*
* Since: 2.4
*/
void
gtk_menu_shell_cancel (GtkMenuShell *menu_shell)
{
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
g_signal_emit (menu_shell, menu_shell_signals[CANCEL], 0);
}
Reference in New Issue View Git Blame Copy Permalink