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gtk2/gtk/gtkmenuitem.c
Matthias Clasen c59f76fda2 Only show the mnemonic underline when pressing Alt 
...and show them in menus when navigating the menu with the keyboard.
This is similar to what other platforms do, and reduces visual clutter.
There is a setting to control this. Most of the work on this patch was
done by Thomas Wood. See bug 588554.
2009-12-20 03:11:05 -05:00

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/* 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 <string.h>
#include "gtkaccellabel.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkmenu.h"
#include "gtkmenubar.h"
#include "gtkseparatormenuitem.h"
#include "gtkprivate.h"
#include "gtkbuildable.h"
#include "gtkactivatable.h"
#include "gtkintl.h"
#include "gtkalias.h"
typedef struct {
GtkAction *action;
gboolean use_action_appearance;
} GtkMenuItemPrivate;
enum {
ACTIVATE,
ACTIVATE_ITEM,
TOGGLE_SIZE_REQUEST,
TOGGLE_SIZE_ALLOCATE,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_RIGHT_JUSTIFIED,
PROP_SUBMENU,
PROP_ACCEL_PATH,
PROP_LABEL,
PROP_USE_UNDERLINE,
/* activatable properties */
PROP_ACTIVATABLE_RELATED_ACTION,
PROP_ACTIVATABLE_USE_ACTION_APPEARANCE
};
static void gtk_menu_item_dispose (GObject *object);
static void gtk_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_menu_item_destroy (GtkObject *object);
static void gtk_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gtk_menu_item_realize (GtkWidget *widget);
static void gtk_menu_item_unrealize (GtkWidget *widget);
static void gtk_menu_item_map (GtkWidget *widget);
static void gtk_menu_item_unmap (GtkWidget *widget);
static void gtk_menu_item_paint (GtkWidget *widget,
GdkRectangle *area);
static gint gtk_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event);
static void gtk_menu_item_parent_set (GtkWidget *widget,
GtkWidget *previous_parent);
static void gtk_real_menu_item_select (GtkItem *item);
static void gtk_real_menu_item_deselect (GtkItem *item);
static void gtk_real_menu_item_activate (GtkMenuItem *item);
static void gtk_real_menu_item_activate_item (GtkMenuItem *item);
static void gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition);
static void gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
gint allocation);
static gboolean gtk_menu_item_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
static void gtk_menu_item_ensure_label (GtkMenuItem *menu_item);
static gint gtk_menu_item_popup_timeout (gpointer data);
static void gtk_menu_item_position_menu (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data);
static void gtk_menu_item_show_all (GtkWidget *widget);
static void gtk_menu_item_hide_all (GtkWidget *widget);
static void gtk_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static gboolean gtk_menu_item_can_activate_accel (GtkWidget *widget,
guint signal_id);
static void gtk_real_menu_item_set_label (GtkMenuItem *menu_item,
const gchar *label);
static G_CONST_RETURN gchar * gtk_real_menu_item_get_label (GtkMenuItem *menu_item);
static void gtk_menu_item_buildable_interface_init (GtkBuildableIface *iface);
static void gtk_menu_item_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static void gtk_menu_item_buildable_custom_finished(GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data);
static void gtk_menu_item_activatable_interface_init (GtkActivatableIface *iface);
static void gtk_menu_item_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name);
static void gtk_menu_item_sync_action_properties (GtkActivatable *activatable,
GtkAction *action);
static void gtk_menu_item_set_related_action (GtkMenuItem *menu_item,
GtkAction *action);
static void gtk_menu_item_set_use_action_appearance (GtkMenuItem *menu_item,
gboolean use_appearance);
static guint menu_item_signals[LAST_SIGNAL] = { 0 };
static GtkBuildableIface *parent_buildable_iface;
G_DEFINE_TYPE_WITH_CODE (GtkMenuItem, gtk_menu_item, GTK_TYPE_ITEM,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_menu_item_buildable_interface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ACTIVATABLE,
gtk_menu_item_activatable_interface_init))
#define GET_PRIVATE(object) \
(G_TYPE_INSTANCE_GET_PRIVATE ((object), GTK_TYPE_MENU_ITEM, GtkMenuItemPrivate))
static void
gtk_menu_item_class_init (GtkMenuItemClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
GtkItemClass *item_class = GTK_ITEM_CLASS (klass);
gobject_class->dispose = gtk_menu_item_dispose;
gobject_class->set_property = gtk_menu_item_set_property;
gobject_class->get_property = gtk_menu_item_get_property;
object_class->destroy = gtk_menu_item_destroy;
widget_class->size_request = gtk_menu_item_size_request;
widget_class->size_allocate = gtk_menu_item_size_allocate;
widget_class->expose_event = gtk_menu_item_expose;
widget_class->realize = gtk_menu_item_realize;
widget_class->unrealize = gtk_menu_item_unrealize;
widget_class->map = gtk_menu_item_map;
widget_class->unmap = gtk_menu_item_unmap;
widget_class->show_all = gtk_menu_item_show_all;
widget_class->hide_all = gtk_menu_item_hide_all;
widget_class->mnemonic_activate = gtk_menu_item_mnemonic_activate;
widget_class->parent_set = gtk_menu_item_parent_set;
widget_class->can_activate_accel = gtk_menu_item_can_activate_accel;
container_class->forall = gtk_menu_item_forall;
item_class->select = gtk_real_menu_item_select;
item_class->deselect = gtk_real_menu_item_deselect;
klass->activate = gtk_real_menu_item_activate;
klass->activate_item = gtk_real_menu_item_activate_item;
klass->toggle_size_request = gtk_real_menu_item_toggle_size_request;
klass->toggle_size_allocate = gtk_real_menu_item_toggle_size_allocate;
klass->set_label = gtk_real_menu_item_set_label;
klass->get_label = gtk_real_menu_item_get_label;
klass->hide_on_activate = TRUE;
menu_item_signals[ACTIVATE] =
g_signal_new (I_("activate"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkMenuItemClass, activate),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
widget_class->activate_signal = menu_item_signals[ACTIVATE];
menu_item_signals[ACTIVATE_ITEM] =
g_signal_new (I_("activate-item"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkMenuItemClass, activate_item),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
menu_item_signals[TOGGLE_SIZE_REQUEST] =
g_signal_new (I_("toggle-size-request"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_request),
NULL, NULL,
_gtk_marshal_VOID__POINTER,
G_TYPE_NONE, 1,
G_TYPE_POINTER);
menu_item_signals[TOGGLE_SIZE_ALLOCATE] =
g_signal_new (I_("toggle-size-allocate"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkMenuItemClass, toggle_size_allocate),
NULL, NULL,
_gtk_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
/**
* GtkMenuItem:right-justified:
*
* Sets whether the menu item appears justified at the right side of a menu bar.
*
* Since: 2.14
**/
g_object_class_install_property (gobject_class,
PROP_RIGHT_JUSTIFIED,
g_param_spec_boolean ("right-justified",
P_("Right Justified"),
P_("Sets whether the menu item appears justified at the right side of a menu bar"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkMenuItem:submenu:
*
* The submenu attached to the menu item, or NULL if it has none.
*
* Since: 2.12
**/
g_object_class_install_property (gobject_class,
PROP_SUBMENU,
g_param_spec_object ("submenu",
P_("Submenu"),
P_("The submenu attached to the menu item, or NULL if it has none"),
GTK_TYPE_MENU,
GTK_PARAM_READWRITE));
/**
* GtkMenuItem:accel-path:
*
* Sets the accelerator path of the menu item, through which runtime
* changes of the menu item's accelerator caused by the user can be
* identified and saved to persistant storage.
*
* Since: 2.14
**/
g_object_class_install_property (gobject_class,
PROP_ACCEL_PATH,
g_param_spec_string ("accel-path",
P_("Accel Path"),
P_("Sets the accelerator path of the menu item"),
NULL,
GTK_PARAM_READWRITE));
/**
* GtkMenuItem:label:
*
* The text for the child label.
*
* Since: 2.16
**/
g_object_class_install_property (gobject_class,
PROP_LABEL,
g_param_spec_string ("label",
P_("Label"),
P_("The text for the child label"),
"",
GTK_PARAM_READWRITE));
/**
* GtkMenuItem:use-underline:
*
* %TRUE if underlines in the text indicate mnemonics
*
* Since: 2.16
**/
g_object_class_install_property (gobject_class,
PROP_USE_UNDERLINE,
g_param_spec_boolean ("use-underline",
P_("Use underline"),
P_("If set, an underline in the text indicates "
"the next character should be used for the "
"mnemonic accelerator key"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_RELATED_ACTION, "related-action");
g_object_class_override_property (gobject_class, PROP_ACTIVATABLE_USE_ACTION_APPEARANCE, "use-action-appearance");
gtk_widget_class_install_style_property_parser (widget_class,
g_param_spec_enum ("selected-shadow-type",
"Selected Shadow Type",
"Shadow type when item is selected",
GTK_TYPE_SHADOW_TYPE,
GTK_SHADOW_NONE,
GTK_PARAM_READABLE),
gtk_rc_property_parse_enum);
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("horizontal-padding",
"Horizontal Padding",
"Padding to left and right of the menu item",
0,
G_MAXINT,
3,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("toggle-spacing",
"Icon Spacing",
"Space between icon and label",
0,
G_MAXINT,
5,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("arrow-spacing",
"Arrow Spacing",
"Space between label and arrow",
0,
G_MAXINT,
10,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_float ("arrow-scaling",
P_("Arrow Scaling"),
P_("Amount of space used up by arrow, relative to the menu item's font size"),
0.0, 2.0, 0.8,
GTK_PARAM_READABLE));
/**
* GtkMenuItem:width-chars:
*
* The minimum desired width of the menu item in characters.
*
* Since: 2.14
**/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("width-chars",
P_("Width in Characters"),
P_("The minimum desired width of the menu item in characters"),
0, G_MAXINT, 12,
GTK_PARAM_READABLE));
g_type_class_add_private (object_class, sizeof (GtkMenuItemPrivate));
}
static void
gtk_menu_item_init (GtkMenuItem *menu_item)
{
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
GTK_WIDGET_SET_FLAGS (menu_item, GTK_NO_WINDOW);
priv->action = NULL;
priv->use_action_appearance = TRUE;
menu_item->submenu = NULL;
menu_item->toggle_size = 0;
menu_item->accelerator_width = 0;
menu_item->show_submenu_indicator = FALSE;
if (gtk_widget_get_direction (GTK_WIDGET (menu_item)) == GTK_TEXT_DIR_RTL)
menu_item->submenu_direction = GTK_DIRECTION_LEFT;
else
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
menu_item->submenu_placement = GTK_TOP_BOTTOM;
menu_item->right_justify = FALSE;
menu_item->timer = 0;
}
GtkWidget*
gtk_menu_item_new (void)
{
return g_object_new (GTK_TYPE_MENU_ITEM, NULL);
}
GtkWidget*
gtk_menu_item_new_with_label (const gchar *label)
{
return g_object_new (GTK_TYPE_MENU_ITEM,
"label", label,
NULL);
}
/**
* gtk_menu_item_new_with_mnemonic:
* @label: The text of the button, with an underscore in front of the
* mnemonic character
* @returns: a new #GtkMenuItem
*
* Creates a new #GtkMenuItem containing a label. The label
* will be created using gtk_label_new_with_mnemonic(), so underscores
* in @label indicate the mnemonic for the menu item.
**/
GtkWidget*
gtk_menu_item_new_with_mnemonic (const gchar *label)
{
return g_object_new (GTK_TYPE_MENU_ITEM,
"use-underline", TRUE,
"label", label,
NULL);
}
static void
gtk_menu_item_dispose (GObject *object)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
if (priv->action)
{
gtk_action_disconnect_accelerator (priv->action);
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (menu_item), NULL);
priv->action = NULL;
}
G_OBJECT_CLASS (gtk_menu_item_parent_class)->dispose (object);
}
static void
gtk_menu_item_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
switch (prop_id)
{
case PROP_RIGHT_JUSTIFIED:
gtk_menu_item_set_right_justified (menu_item, g_value_get_boolean (value));
break;
case PROP_SUBMENU:
gtk_menu_item_set_submenu (menu_item, g_value_get_object (value));
break;
case PROP_ACCEL_PATH:
gtk_menu_item_set_accel_path (menu_item, g_value_get_string (value));
break;
case PROP_LABEL:
gtk_menu_item_set_label (menu_item, g_value_get_string (value));
break;
case PROP_USE_UNDERLINE:
gtk_menu_item_set_use_underline (menu_item, g_value_get_boolean (value));
break;
case PROP_ACTIVATABLE_RELATED_ACTION:
gtk_menu_item_set_related_action (menu_item, g_value_get_object (value));
break;
case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
gtk_menu_item_set_use_action_appearance (menu_item, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_menu_item_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
switch (prop_id)
{
case PROP_RIGHT_JUSTIFIED:
g_value_set_boolean (value, gtk_menu_item_get_right_justified (menu_item));
break;
case PROP_SUBMENU:
g_value_set_object (value, gtk_menu_item_get_submenu (menu_item));
break;
case PROP_ACCEL_PATH:
g_value_set_string (value, gtk_menu_item_get_accel_path (menu_item));
break;
case PROP_LABEL:
g_value_set_string (value, gtk_menu_item_get_label (menu_item));
break;
case PROP_USE_UNDERLINE:
g_value_set_boolean (value, gtk_menu_item_get_use_underline (menu_item));
break;
case PROP_ACTIVATABLE_RELATED_ACTION:
g_value_set_object (value, priv->action);
break;
case PROP_ACTIVATABLE_USE_ACTION_APPEARANCE:
g_value_set_boolean (value, priv->use_action_appearance);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_menu_item_destroy (GtkObject *object)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (object);
if (menu_item->submenu)
gtk_widget_destroy (menu_item->submenu);
GTK_OBJECT_CLASS (gtk_menu_item_parent_class)->destroy (object);
}
static void
gtk_menu_item_detacher (GtkWidget *widget,
GtkMenu *menu)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
g_return_if_fail (menu_item->submenu == (GtkWidget*) menu);
menu_item->submenu = NULL;
}
static void
gtk_menu_item_buildable_interface_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_menu_item_buildable_add_child;
iface->custom_finished = gtk_menu_item_buildable_custom_finished;
}
static void
gtk_menu_item_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
if (type && strcmp (type, "submenu") == 0)
gtk_menu_item_set_submenu (GTK_MENU_ITEM (buildable),
GTK_WIDGET (child));
else
parent_buildable_iface->add_child (buildable, builder, child, type);
}
static void
gtk_menu_item_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data)
{
GtkWidget *toplevel;
if (strcmp (tagname, "accelerator") == 0)
{
GtkMenuShell *menu_shell = (GtkMenuShell *) GTK_WIDGET (buildable)->parent;
GtkWidget *attach;
if (menu_shell)
{
while (GTK_IS_MENU (menu_shell) &&
(attach = gtk_menu_get_attach_widget (GTK_MENU (menu_shell))) != NULL)
menu_shell = (GtkMenuShell *)attach->parent;
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (menu_shell));
}
else
{
/* Fall back to something ... */
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (buildable));
g_warning ("found a GtkMenuItem '%s' without a parent GtkMenuShell, assigned accelerators wont work.",
gtk_buildable_get_name (buildable));
}
/* Feed the correct toplevel to the GtkWidget accelerator parsing code */
_gtk_widget_buildable_finish_accelerator (GTK_WIDGET (buildable), toplevel, user_data);
}
else
parent_buildable_iface->custom_finished (buildable, builder, child, tagname, user_data);
}
static void
gtk_menu_item_activatable_interface_init (GtkActivatableIface *iface)
{
iface->update = gtk_menu_item_update;
iface->sync_action_properties = gtk_menu_item_sync_action_properties;
}
static void
activatable_update_label (GtkMenuItem *menu_item, GtkAction *action)
{
GtkWidget *child = GTK_BIN (menu_item)->child;
if (GTK_IS_LABEL (child))
{
const gchar *label;
label = gtk_action_get_label (action);
gtk_label_set_label (GTK_LABEL (child), label ? label : "");
}
}
gboolean _gtk_menu_is_empty (GtkWidget *menu);
static void
gtk_menu_item_update (GtkActivatable *activatable,
GtkAction *action,
const gchar *property_name)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (activatable);
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
if (strcmp (property_name, "visible") == 0)
_gtk_action_sync_menu_visible (action, GTK_WIDGET (menu_item),
_gtk_menu_is_empty (gtk_menu_item_get_submenu (menu_item)));
else if (strcmp (property_name, "sensitive") == 0)
gtk_widget_set_sensitive (GTK_WIDGET (menu_item), gtk_action_is_sensitive (action));
else if (priv->use_action_appearance)
{
if (strcmp (property_name, "label") == 0)
activatable_update_label (menu_item, action);
}
}
static void
gtk_menu_item_sync_action_properties (GtkActivatable *activatable,
GtkAction *action)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (activatable);
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
if (!action)
return;
_gtk_action_sync_menu_visible (action, GTK_WIDGET (menu_item),
_gtk_menu_is_empty (gtk_menu_item_get_submenu (menu_item)));
gtk_widget_set_sensitive (GTK_WIDGET (menu_item), gtk_action_is_sensitive (action));
if (priv->use_action_appearance)
{
GtkWidget *label = GTK_BIN (menu_item)->child;
/* make sure label is a label */
if (label && !GTK_IS_LABEL (label))
{
gtk_container_remove (GTK_CONTAINER (menu_item), label);
label = NULL;
}
if (!label)
label = g_object_new (GTK_TYPE_ACCEL_LABEL,
"use-underline", TRUE,
"xalign", 0.0,
"visible", TRUE,
"parent", menu_item,
NULL);
if (GTK_IS_ACCEL_LABEL (label) && gtk_action_get_accel_path (action))
g_object_set (label,
"accel-closure", gtk_action_get_accel_closure (action),
NULL);
activatable_update_label (menu_item, action);
}
}
static void
gtk_menu_item_set_related_action (GtkMenuItem *menu_item,
GtkAction *action)
{
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
if (priv->action == action)
return;
if (priv->action)
{
gtk_action_disconnect_accelerator (priv->action);
}
if (action)
{
const gchar *accel_path;
accel_path = gtk_action_get_accel_path (action);
if (accel_path)
{
gtk_action_connect_accelerator (action);
gtk_menu_item_set_accel_path (menu_item, accel_path);
}
}
gtk_activatable_do_set_related_action (GTK_ACTIVATABLE (menu_item), action);
priv->action = action;
}
static void
gtk_menu_item_set_use_action_appearance (GtkMenuItem *menu_item,
gboolean use_appearance)
{
GtkMenuItemPrivate *priv = GET_PRIVATE (menu_item);
if (priv->use_action_appearance != use_appearance)
{
priv->use_action_appearance = use_appearance;
gtk_activatable_sync_action_properties (GTK_ACTIVATABLE (menu_item), priv->action);
}
}
/**
* gtk_menu_item_set_submenu:
* @menu_item: a #GtkMenuItem
* @submenu: the submenu, or %NULL
*
* Sets or replaces the menu item's submenu, or removes it when a %NULL
* submenu is passed.
**/
void
gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
GtkWidget *submenu)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_return_if_fail (submenu == NULL || GTK_IS_MENU (submenu));
if (menu_item->submenu != submenu)
{
if (menu_item->submenu)
gtk_menu_detach (GTK_MENU (menu_item->submenu));
if (submenu)
{
menu_item->submenu = submenu;
gtk_menu_attach_to_widget (GTK_MENU (submenu),
GTK_WIDGET (menu_item),
gtk_menu_item_detacher);
}
if (GTK_WIDGET (menu_item)->parent)
gtk_widget_queue_resize (GTK_WIDGET (menu_item));
g_object_notify (G_OBJECT (menu_item), "submenu");
}
}
/**
* gtk_menu_item_get_submenu:
* @menu_item: a #GtkMenuItem
*
* Gets the submenu underneath this menu item, if any. See
* gtk_menu_item_set_submenu().
*
* Return value: submenu for this menu item, or %NULL if none.
**/
GtkWidget *
gtk_menu_item_get_submenu (GtkMenuItem *menu_item)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
return menu_item->submenu;
}
/**
* gtk_menu_item_remove_submenu:
* @menu_item: a #GtkMenuItem
*
* Removes the widget's submenu.
*
* Deprecated: 2.12: gtk_menu_item_remove_submenu() is deprecated and
* should not be used in newly written code. Use
* gtk_menu_item_set_submenu() instead.
**/
void
gtk_menu_item_remove_submenu (GtkMenuItem *menu_item)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_menu_item_set_submenu (menu_item, NULL);
}
void _gtk_menu_item_set_placement (GtkMenuItem *menu_item,
GtkSubmenuPlacement placement);
void
_gtk_menu_item_set_placement (GtkMenuItem *menu_item,
GtkSubmenuPlacement placement)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
menu_item->submenu_placement = placement;
}
void
gtk_menu_item_select (GtkMenuItem *menu_item)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_item_select (GTK_ITEM (menu_item));
/* Enable themeing of the parent menu item depending on whether
* something is selected in its submenu
*/
if (GTK_IS_MENU (GTK_WIDGET (menu_item)->parent))
{
GtkMenu *menu = GTK_MENU (GTK_WIDGET (menu_item)->parent);
if (menu->parent_menu_item)
gtk_widget_queue_draw (GTK_WIDGET (menu->parent_menu_item));
}
}
void
gtk_menu_item_deselect (GtkMenuItem *menu_item)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_item_deselect (GTK_ITEM (menu_item));
/* Enable themeing of the parent menu item depending on whether
* something is selected in its submenu
*/
if (GTK_IS_MENU (GTK_WIDGET (menu_item)->parent))
{
GtkMenu *menu = GTK_MENU (GTK_WIDGET (menu_item)->parent);
if (menu->parent_menu_item)
gtk_widget_queue_draw (GTK_WIDGET (menu->parent_menu_item));
}
}
void
gtk_menu_item_activate (GtkMenuItem *menu_item)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_signal_emit (menu_item, menu_item_signals[ACTIVATE], 0);
}
void
gtk_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_REQUEST], 0, requisition);
}
void
gtk_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
gint allocation)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_signal_emit (menu_item, menu_item_signals[TOGGLE_SIZE_ALLOCATE], 0, allocation);
}
static void
gtk_menu_item_accel_width_foreach (GtkWidget *widget,
gpointer data)
{
guint *width = data;
if (GTK_IS_ACCEL_LABEL (widget))
{
guint w;
w = gtk_accel_label_get_accel_width (GTK_ACCEL_LABEL (widget));
*width = MAX (*width, w);
}
else if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_menu_item_accel_width_foreach,
data);
}
static gint
get_minimum_width (GtkWidget *widget)
{
PangoContext *context;
PangoFontMetrics *metrics;
gint width;
gint width_chars;
context = gtk_widget_get_pango_context (widget);
metrics = pango_context_get_metrics (context,
widget->style->font_desc,
pango_context_get_language (context));
width = pango_font_metrics_get_approximate_char_width (metrics);
pango_font_metrics_unref (metrics);
gtk_widget_style_get (widget, "width-chars", &width_chars, NULL);
return PANGO_PIXELS (width_chars * width);
}
static void
gtk_menu_item_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkMenuItem *menu_item;
GtkBin *bin;
guint accel_width;
guint horizontal_padding;
GtkPackDirection pack_dir;
GtkPackDirection child_pack_dir;
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
g_return_if_fail (requisition != NULL);
gtk_widget_style_get (widget,
"horizontal-padding", &horizontal_padding,
NULL);
bin = GTK_BIN (widget);
menu_item = GTK_MENU_ITEM (widget);
if (GTK_IS_MENU_BAR (widget->parent))
{
pack_dir = gtk_menu_bar_get_pack_direction (GTK_MENU_BAR (widget->parent));
child_pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
}
else
{
pack_dir = GTK_PACK_DIRECTION_LTR;
child_pack_dir = GTK_PACK_DIRECTION_LTR;
}
requisition->width = (GTK_CONTAINER (widget)->border_width +
widget->style->xthickness) * 2;
requisition->height = (GTK_CONTAINER (widget)->border_width +
widget->style->ythickness) * 2;
if ((pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL) &&
(child_pack_dir == GTK_PACK_DIRECTION_LTR || child_pack_dir == GTK_PACK_DIRECTION_RTL))
requisition->width += 2 * horizontal_padding;
else if ((pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT) &&
(child_pack_dir == GTK_PACK_DIRECTION_TTB || child_pack_dir == GTK_PACK_DIRECTION_BTT))
requisition->height += 2 * horizontal_padding;
if (bin->child && GTK_WIDGET_VISIBLE (bin->child))
{
GtkRequisition child_requisition;
gtk_widget_size_request (bin->child, &child_requisition);
requisition->width += child_requisition.width;
requisition->height += child_requisition.height;
if (menu_item->submenu && menu_item->show_submenu_indicator)
{
guint arrow_spacing;
gtk_widget_style_get (widget,
"arrow-spacing", &arrow_spacing,
NULL);
requisition->width += child_requisition.height;
requisition->width += arrow_spacing;
requisition->width = MAX (requisition->width, get_minimum_width (widget));
}
}
else /* separator item */
{
gboolean wide_separators;
gint separator_height;
gtk_widget_style_get (widget,
"wide-separators", &wide_separators,
"separator-height", &separator_height,
NULL);
if (wide_separators)
requisition->height += separator_height + widget->style->ythickness;
else
requisition->height += widget->style->ythickness * 2;
}
accel_width = 0;
gtk_container_foreach (GTK_CONTAINER (menu_item),
gtk_menu_item_accel_width_foreach,
&accel_width);
menu_item->accelerator_width = accel_width;
}
static void
gtk_menu_item_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkMenuItem *menu_item;
GtkBin *bin;
GtkAllocation child_allocation;
GtkTextDirection direction;
GtkPackDirection pack_dir;
GtkPackDirection child_pack_dir;
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
g_return_if_fail (allocation != NULL);
menu_item = GTK_MENU_ITEM (widget);
bin = GTK_BIN (widget);
direction = gtk_widget_get_direction (widget);
if (GTK_IS_MENU_BAR (widget->parent))
{
pack_dir = gtk_menu_bar_get_pack_direction (GTK_MENU_BAR (widget->parent));
child_pack_dir = gtk_menu_bar_get_child_pack_direction (GTK_MENU_BAR (widget->parent));
}
else
{
pack_dir = GTK_PACK_DIRECTION_LTR;
child_pack_dir = GTK_PACK_DIRECTION_LTR;
}
widget->allocation = *allocation;
if (bin->child)
{
GtkRequisition child_requisition;
guint horizontal_padding;
gtk_widget_style_get (widget,
"horizontal-padding", &horizontal_padding,
NULL);
child_allocation.x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness;
child_allocation.y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness;
if ((pack_dir == GTK_PACK_DIRECTION_LTR || pack_dir == GTK_PACK_DIRECTION_RTL) &&
(child_pack_dir == GTK_PACK_DIRECTION_LTR || child_pack_dir == GTK_PACK_DIRECTION_RTL))
child_allocation.x += horizontal_padding;
else if ((pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT) &&
(child_pack_dir == GTK_PACK_DIRECTION_TTB || child_pack_dir == GTK_PACK_DIRECTION_BTT))
child_allocation.y += horizontal_padding;
child_allocation.width = MAX (1, (gint)allocation->width - child_allocation.x * 2);
child_allocation.height = MAX (1, (gint)allocation->height - child_allocation.y * 2);
if (child_pack_dir == GTK_PACK_DIRECTION_LTR ||
child_pack_dir == GTK_PACK_DIRECTION_RTL)
{
if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_RTL))
child_allocation.x += GTK_MENU_ITEM (widget)->toggle_size;
child_allocation.width -= GTK_MENU_ITEM (widget)->toggle_size;
}
else
{
if ((direction == GTK_TEXT_DIR_LTR) == (child_pack_dir != GTK_PACK_DIRECTION_BTT))
child_allocation.y += GTK_MENU_ITEM (widget)->toggle_size;
child_allocation.height -= GTK_MENU_ITEM (widget)->toggle_size;
}
child_allocation.x += widget->allocation.x;
child_allocation.y += widget->allocation.y;
gtk_widget_get_child_requisition (bin->child, &child_requisition);
if (menu_item->submenu && menu_item->show_submenu_indicator)
{
if (direction == GTK_TEXT_DIR_RTL)
child_allocation.x += child_requisition.height;
child_allocation.width -= child_requisition.height;
}
if (child_allocation.width < 1)
child_allocation.width = 1;
gtk_widget_size_allocate (bin->child, &child_allocation);
}
if (GTK_WIDGET_REALIZED (widget))
gdk_window_move_resize (menu_item->event_window,
allocation->x, allocation->y,
allocation->width, allocation->height);
if (menu_item->submenu)
gtk_menu_reposition (GTK_MENU (menu_item->submenu));
}
static void
gtk_menu_item_realize (GtkWidget *widget)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
GdkWindowAttr attributes;
gint attributes_mask;
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
widget->window = gtk_widget_get_parent_window (widget);
g_object_ref (widget->window);
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_ONLY;
attributes.event_mask = (gtk_widget_get_events (widget) |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_POINTER_MOTION_MASK);
attributes_mask = GDK_WA_X | GDK_WA_Y;
menu_item->event_window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (menu_item->event_window, widget);
widget->style = gtk_style_attach (widget->style, widget->window);
}
static void
gtk_menu_item_unrealize (GtkWidget *widget)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
gdk_window_set_user_data (menu_item->event_window, NULL);
gdk_window_destroy (menu_item->event_window);
menu_item->event_window = NULL;
GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->unrealize (widget);
}
static void
gtk_menu_item_map (GtkWidget *widget)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->map (widget);
gdk_window_show (menu_item->event_window);
}
static void
gtk_menu_item_unmap (GtkWidget *widget)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
gdk_window_hide (menu_item->event_window);
GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->unmap (widget);
}
static void
gtk_menu_item_paint (GtkWidget *widget,
GdkRectangle *area)
{
GtkMenuItem *menu_item;
GtkStateType state_type;
GtkShadowType shadow_type, selected_shadow_type;
gint width, height;
gint x, y;
gint border_width = GTK_CONTAINER (widget)->border_width;
if (GTK_WIDGET_DRAWABLE (widget))
{
menu_item = GTK_MENU_ITEM (widget);
state_type = widget->state;
x = widget->allocation.x + border_width;
y = widget->allocation.y + border_width;
width = widget->allocation.width - border_width * 2;
height = widget->allocation.height - border_width * 2;
if ((state_type == GTK_STATE_PRELIGHT) &&
(GTK_BIN (menu_item)->child))
{
gtk_widget_style_get (widget,
"selected-shadow-type", &selected_shadow_type,
NULL);
gtk_paint_box (widget->style,
widget->window,
GTK_STATE_PRELIGHT,
selected_shadow_type,
area, widget, "menuitem",
x, y, width, height);
}
if (menu_item->submenu && menu_item->show_submenu_indicator)
{
gint arrow_x, arrow_y;
gint arrow_size;
gint arrow_extent;
guint horizontal_padding;
gfloat arrow_scaling;
GtkTextDirection direction;
GtkArrowType arrow_type;
PangoContext *context;
PangoFontMetrics *metrics;
direction = gtk_widget_get_direction (widget);
gtk_widget_style_get (widget,
"horizontal-padding", &horizontal_padding,
"arrow-scaling", &arrow_scaling,
NULL);
context = gtk_widget_get_pango_context (GTK_BIN (menu_item)->child);
metrics = pango_context_get_metrics (context,
GTK_WIDGET (GTK_BIN (menu_item)->child)->style->font_desc,
pango_context_get_language (context));
arrow_size = (PANGO_PIXELS (pango_font_metrics_get_ascent (metrics) +
pango_font_metrics_get_descent (metrics)));
pango_font_metrics_unref (metrics);
arrow_extent = arrow_size * arrow_scaling;
shadow_type = GTK_SHADOW_OUT;
if (state_type == GTK_STATE_PRELIGHT)
shadow_type = GTK_SHADOW_IN;
if (direction == GTK_TEXT_DIR_LTR)
{
arrow_x = x + width - horizontal_padding - arrow_extent;
arrow_type = GTK_ARROW_RIGHT;
}
else
{
arrow_x = x + horizontal_padding;
arrow_type = GTK_ARROW_LEFT;
}
arrow_y = y + (height - arrow_extent) / 2;
gtk_paint_arrow (widget->style, widget->window,
state_type, shadow_type,
area, widget, "menuitem",
arrow_type, TRUE,
arrow_x, arrow_y,
arrow_extent, arrow_extent);
}
else if (!GTK_BIN (menu_item)->child)
{
gboolean wide_separators;
gint separator_height;
guint horizontal_padding;
gtk_widget_style_get (widget,
"wide-separators", &wide_separators,
"separator-height", &separator_height,
"horizontal-padding", &horizontal_padding,
NULL);
if (wide_separators)
gtk_paint_box (widget->style, widget->window,
GTK_STATE_NORMAL, GTK_SHADOW_ETCHED_OUT,
area, widget, "hseparator",
widget->allocation.x + horizontal_padding + widget->style->xthickness,
widget->allocation.y + (widget->allocation.height -
separator_height -
widget->style->ythickness) / 2,
widget->allocation.width -
2 * (horizontal_padding + widget->style->xthickness),
separator_height);
else
gtk_paint_hline (widget->style, widget->window,
GTK_STATE_NORMAL, area, widget, "menuitem",
widget->allocation.x + horizontal_padding + widget->style->xthickness,
widget->allocation.x + widget->allocation.width - horizontal_padding - widget->style->xthickness - 1,
widget->allocation.y + (widget->allocation.height -
widget->style->ythickness) / 2);
}
}
}
static gint
gtk_menu_item_expose (GtkWidget *widget,
GdkEventExpose *event)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
gtk_menu_item_paint (widget, &event->area);
GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->expose_event (widget, event);
}
return FALSE;
}
static void
gtk_real_menu_item_select (GtkItem *item)
{
GtkMenuItem *menu_item;
gboolean touchscreen_mode;
g_return_if_fail (GTK_IS_MENU_ITEM (item));
menu_item = GTK_MENU_ITEM (item);
g_object_get (gtk_widget_get_settings (GTK_WIDGET (item)),
"gtk-touchscreen-mode", &touchscreen_mode,
NULL);
if (!touchscreen_mode &&
menu_item->submenu &&
(!GTK_WIDGET_MAPPED (menu_item->submenu) ||
GTK_MENU (menu_item->submenu)->tearoff_active))
{
_gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item), TRUE);
}
gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_PRELIGHT);
gtk_widget_queue_draw (GTK_WIDGET (menu_item));
}
static void
gtk_real_menu_item_deselect (GtkItem *item)
{
GtkMenuItem *menu_item;
g_return_if_fail (GTK_IS_MENU_ITEM (item));
menu_item = GTK_MENU_ITEM (item);
if (menu_item->submenu)
_gtk_menu_item_popdown_submenu (GTK_WIDGET (menu_item));
gtk_widget_set_state (GTK_WIDGET (menu_item), GTK_STATE_NORMAL);
gtk_widget_queue_draw (GTK_WIDGET (menu_item));
}
static gboolean
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
if (GTK_IS_MENU_SHELL (widget->parent))
_gtk_menu_shell_set_keyboard_mode (GTK_MENU_SHELL (widget->parent), TRUE);
if (group_cycling &&
widget->parent &&
GTK_IS_MENU_SHELL (widget->parent) &&
GTK_MENU_SHELL (widget->parent)->active)
{
gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent),
widget);
}
else
g_signal_emit (widget, menu_item_signals[ACTIVATE_ITEM], 0);
return TRUE;
}
static void
gtk_real_menu_item_activate (GtkMenuItem *menu_item)
{
GtkMenuItemPrivate *priv;
priv = GET_PRIVATE (menu_item);
if (priv->action)
gtk_action_activate (priv->action);
}
static void
gtk_real_menu_item_activate_item (GtkMenuItem *menu_item)
{
GtkMenuItemPrivate *priv;
GtkWidget *widget;
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
priv = GET_PRIVATE (menu_item);
widget = GTK_WIDGET (menu_item);
if (widget->parent &&
GTK_IS_MENU_SHELL (widget->parent))
{
if (menu_item->submenu == NULL)
gtk_menu_shell_activate_item (GTK_MENU_SHELL (widget->parent),
widget, TRUE);
else
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget->parent);
_gtk_menu_shell_activate (menu_shell);
gtk_menu_shell_select_item (GTK_MENU_SHELL (widget->parent), widget);
_gtk_menu_item_popup_submenu (widget, FALSE);
gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->submenu), TRUE);
}
}
}
static void
gtk_real_menu_item_toggle_size_request (GtkMenuItem *menu_item,
gint *requisition)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
*requisition = 0;
}
static void
gtk_real_menu_item_toggle_size_allocate (GtkMenuItem *menu_item,
gint allocation)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
menu_item->toggle_size = allocation;
}
static void
gtk_real_menu_item_set_label (GtkMenuItem *menu_item,
const gchar *label)
{
gtk_menu_item_ensure_label (menu_item);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
{
gtk_label_set_label (GTK_LABEL (GTK_BIN (menu_item)->child), label ? label : "");
g_object_notify (G_OBJECT (menu_item), "label");
}
}
static G_CONST_RETURN gchar *
gtk_real_menu_item_get_label (GtkMenuItem *menu_item)
{
gtk_menu_item_ensure_label (menu_item);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
return gtk_label_get_label (GTK_LABEL (GTK_BIN (menu_item)->child));
return NULL;
}
static void
free_timeval (GTimeVal *val)
{
g_slice_free (GTimeVal, val);
}
static void
gtk_menu_item_real_popup_submenu (GtkWidget *widget,
gboolean remember_exact_time)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
if (GTK_WIDGET_IS_SENSITIVE (menu_item->submenu) && widget->parent)
{
gboolean take_focus;
GtkMenuPositionFunc menu_position_func;
take_focus = gtk_menu_shell_get_take_focus (GTK_MENU_SHELL (widget->parent));
gtk_menu_shell_set_take_focus (GTK_MENU_SHELL (menu_item->submenu),
take_focus);
if (remember_exact_time)
{
GTimeVal *popup_time = g_slice_new0 (GTimeVal);
g_get_current_time (popup_time);
g_object_set_data_full (G_OBJECT (menu_item->submenu),
"gtk-menu-exact-popup-time", popup_time,
(GDestroyNotify) free_timeval);
}
else
{
g_object_set_data (G_OBJECT (menu_item->submenu),
"gtk-menu-exact-popup-time", NULL);
}
/* gtk_menu_item_position_menu positions the submenu from the
* menuitems position. If the menuitem doesn't have a window,
* that doesn't work. In that case we use the default
* positioning function instead which places the submenu at the
* mouse cursor.
*/
if (widget->window)
menu_position_func = gtk_menu_item_position_menu;
else
menu_position_func = NULL;
gtk_menu_popup (GTK_MENU (menu_item->submenu),
widget->parent,
widget,
menu_position_func,
menu_item,
GTK_MENU_SHELL (widget->parent)->button,
0);
}
/* Enable themeing of the parent menu item depending on whether
* its submenu is shown or not.
*/
gtk_widget_queue_draw (widget);
}
static gint
gtk_menu_item_popup_timeout (gpointer data)
{
GtkMenuItem *menu_item;
GtkWidget *parent;
menu_item = GTK_MENU_ITEM (data);
parent = GTK_WIDGET (menu_item)->parent;
if ((GTK_IS_MENU_SHELL (parent) && GTK_MENU_SHELL (parent)->active) ||
(GTK_IS_MENU (parent) && GTK_MENU (parent)->torn_off))
{
gtk_menu_item_real_popup_submenu (GTK_WIDGET (menu_item), TRUE);
if (menu_item->timer_from_keypress && menu_item->submenu)
GTK_MENU_SHELL (menu_item->submenu)->ignore_enter = TRUE;
}
menu_item->timer = 0;
return FALSE;
}
static gint
get_popup_delay (GtkWidget *widget)
{
if (GTK_IS_MENU_SHELL (widget->parent))
{
return _gtk_menu_shell_get_popup_delay (GTK_MENU_SHELL (widget->parent));
}
else
{
gint popup_delay;
g_object_get (gtk_widget_get_settings (widget),
"gtk-menu-popup-delay", &popup_delay,
NULL);
return popup_delay;
}
}
void
_gtk_menu_item_popup_submenu (GtkWidget *widget,
gboolean with_delay)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
if (menu_item->timer)
{
g_source_remove (menu_item->timer);
menu_item->timer = 0;
with_delay = FALSE;
}
if (with_delay)
{
gint popup_delay = get_popup_delay (widget);
if (popup_delay > 0)
{
GdkEvent *event = gtk_get_current_event ();
menu_item->timer = gdk_threads_add_timeout (popup_delay,
gtk_menu_item_popup_timeout,
menu_item);
if (event &&
event->type != GDK_BUTTON_PRESS &&
event->type != GDK_ENTER_NOTIFY)
menu_item->timer_from_keypress = TRUE;
else
menu_item->timer_from_keypress = FALSE;
if (event)
gdk_event_free (event);
return;
}
}
gtk_menu_item_real_popup_submenu (widget, FALSE);
}
void
_gtk_menu_item_popdown_submenu (GtkWidget *widget)
{
GtkMenuItem *menu_item;
menu_item = GTK_MENU_ITEM (widget);
if (menu_item->submenu)
{
g_object_set_data (G_OBJECT (menu_item->submenu),
"gtk-menu-exact-popup-time", NULL);
if (menu_item->timer)
{
g_source_remove (menu_item->timer);
menu_item->timer = 0;
}
else
gtk_menu_popdown (GTK_MENU (menu_item->submenu));
gtk_widget_queue_draw (widget);
}
}
static void
get_offsets (GtkMenu *menu,
gint *horizontal_offset,
gint *vertical_offset)
{
gint vertical_padding;
gint horizontal_padding;
gtk_widget_style_get (GTK_WIDGET (menu),
"horizontal-offset", horizontal_offset,
"vertical-offset", vertical_offset,
"horizontal-padding", &horizontal_padding,
"vertical-padding", &vertical_padding,
NULL);
*vertical_offset -= GTK_WIDGET (menu)->style->ythickness;
*vertical_offset -= vertical_padding;
*horizontal_offset += horizontal_padding;
}
static void
gtk_menu_item_position_menu (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data)
{
GtkMenuItem *menu_item;
GtkWidget *widget;
GtkMenuItem *parent_menu_item;
GdkScreen *screen;
gint twidth, theight;
gint tx, ty;
GtkTextDirection direction;
GdkRectangle monitor;
gint monitor_num;
gint horizontal_offset;
gint vertical_offset;
gint parent_xthickness;
gint available_left, available_right;
g_return_if_fail (menu != NULL);
g_return_if_fail (x != NULL);
g_return_if_fail (y != NULL);
menu_item = GTK_MENU_ITEM (user_data);
widget = GTK_WIDGET (user_data);
if (push_in)
*push_in = FALSE;
direction = gtk_widget_get_direction (widget);
twidth = GTK_WIDGET (menu)->requisition.width;
theight = GTK_WIDGET (menu)->requisition.height;
screen = gtk_widget_get_screen (GTK_WIDGET (menu));
monitor_num = gdk_screen_get_monitor_at_window (screen, menu_item->event_window);
if (monitor_num < 0)
monitor_num = 0;
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (!gdk_window_get_origin (widget->window, &tx, &ty))
{
g_warning ("Menu not on screen");
return;
}
tx += widget->allocation.x;
ty += widget->allocation.y;
get_offsets (menu, &horizontal_offset, &vertical_offset);
available_left = tx - monitor.x;
available_right = monitor.x + monitor.width - (tx + widget->allocation.width);
if (GTK_IS_MENU_BAR (widget->parent))
{
menu_item->from_menubar = TRUE;
}
else if (GTK_IS_MENU (widget->parent))
{
if (GTK_MENU (widget->parent)->parent_menu_item)
menu_item->from_menubar = GTK_MENU_ITEM (GTK_MENU (widget->parent)->parent_menu_item)->from_menubar;
else
menu_item->from_menubar = FALSE;
}
else
{
menu_item->from_menubar = FALSE;
}
switch (menu_item->submenu_placement)
{
case GTK_TOP_BOTTOM:
if (direction == GTK_TEXT_DIR_LTR)
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
else
{
menu_item->submenu_direction = GTK_DIRECTION_LEFT;
tx += widget->allocation.width - twidth;
}
if ((ty + widget->allocation.height + theight) <= monitor.y + monitor.height)
ty += widget->allocation.height;
else if ((ty - theight) >= monitor.y)
ty -= theight;
else if (monitor.y + monitor.height - (ty + widget->allocation.height) > ty)
ty += widget->allocation.height;
else
ty -= theight;
break;
case GTK_LEFT_RIGHT:
if (GTK_IS_MENU (widget->parent))
parent_menu_item = GTK_MENU_ITEM (GTK_MENU (widget->parent)->parent_menu_item);
else
parent_menu_item = NULL;
parent_xthickness = widget->parent->style->xthickness;
if (parent_menu_item && !GTK_MENU (widget->parent)->torn_off)
{
menu_item->submenu_direction = parent_menu_item->submenu_direction;
}
else
{
if (direction == GTK_TEXT_DIR_LTR)
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
else
menu_item->submenu_direction = GTK_DIRECTION_LEFT;
}
switch (menu_item->submenu_direction)
{
case GTK_DIRECTION_LEFT:
if (tx - twidth - parent_xthickness - horizontal_offset >= monitor.x ||
available_left >= available_right)
tx -= twidth + parent_xthickness + horizontal_offset;
else
{
menu_item->submenu_direction = GTK_DIRECTION_RIGHT;
tx += widget->allocation.width + parent_xthickness + horizontal_offset;
}
break;
case GTK_DIRECTION_RIGHT:
if (tx + widget->allocation.width + parent_xthickness + horizontal_offset + twidth <= monitor.x + monitor.width ||
available_right >= available_left)
tx += widget->allocation.width + parent_xthickness + horizontal_offset;
else
{
menu_item->submenu_direction = GTK_DIRECTION_LEFT;
tx -= twidth + parent_xthickness + horizontal_offset;
}
break;
}
ty += vertical_offset;
/* If the height of the menu doesn't fit we move it upward. */
ty = CLAMP (ty, monitor.y, MAX (monitor.y, monitor.y + monitor.height - theight));
break;
}
/* If we have negative, tx, here it is because we can't get
* the menu all the way on screen. Favor the left portion.
*/
*x = CLAMP (tx, monitor.x, MAX (monitor.x, monitor.x + monitor.width - twidth));
*y = ty;
gtk_menu_set_monitor (menu, monitor_num);
if (!GTK_WIDGET_VISIBLE (menu->toplevel))
{
gtk_window_set_type_hint (GTK_WINDOW (menu->toplevel), menu_item->from_menubar?
GDK_WINDOW_TYPE_HINT_DROPDOWN_MENU : GDK_WINDOW_TYPE_HINT_POPUP_MENU);
}
}
/**
* gtk_menu_item_set_right_justified:
* @menu_item: a #GtkMenuItem.
* @right_justified: if %TRUE the menu item will appear at the
* far right if added to a menu bar.
*
* Sets whether the menu item appears justified at the right
* side of a menu bar. This was traditionally done for "Help" menu
* items, but is now considered a bad idea. (If the widget
* layout is reversed for a right-to-left language like Hebrew
* or Arabic, right-justified-menu-items appear at the left.)
**/
void
gtk_menu_item_set_right_justified (GtkMenuItem *menu_item,
gboolean right_justified)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
right_justified = right_justified != FALSE;
if (right_justified != menu_item->right_justify)
{
menu_item->right_justify = right_justified;
gtk_widget_queue_resize (GTK_WIDGET (menu_item));
}
}
/**
* gtk_menu_item_get_right_justified:
* @menu_item: a #GtkMenuItem
*
* Gets whether the menu item appears justified at the right
* side of the menu bar.
*
* Return value: %TRUE if the menu item will appear at the
* far right if added to a menu bar.
**/
gboolean
gtk_menu_item_get_right_justified (GtkMenuItem *menu_item)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
return menu_item->right_justify;
}
static void
gtk_menu_item_show_all (GtkWidget *widget)
{
GtkMenuItem *menu_item;
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
menu_item = GTK_MENU_ITEM (widget);
/* show children including submenu */
if (menu_item->submenu)
gtk_widget_show_all (menu_item->submenu);
gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
gtk_widget_show (widget);
}
static void
gtk_menu_item_hide_all (GtkWidget *widget)
{
GtkMenuItem *menu_item;
g_return_if_fail (GTK_IS_MENU_ITEM (widget));
gtk_widget_hide (widget);
menu_item = GTK_MENU_ITEM (widget);
/* hide children including submenu */
gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
if (menu_item->submenu)
gtk_widget_hide_all (menu_item->submenu);
}
static gboolean
gtk_menu_item_can_activate_accel (GtkWidget *widget,
guint signal_id)
{
/* Chain to the parent GtkMenu for further checks */
return (GTK_WIDGET_IS_SENSITIVE (widget) && GTK_WIDGET_VISIBLE (widget) &&
widget->parent && gtk_widget_can_activate_accel (widget->parent, signal_id));
}
static void
gtk_menu_item_accel_name_foreach (GtkWidget *widget,
gpointer data)
{
const gchar **path_p = data;
if (!*path_p)
{
if (GTK_IS_LABEL (widget))
{
*path_p = gtk_label_get_text (GTK_LABEL (widget));
if (*path_p && (*path_p)[0] == 0)
*path_p = NULL;
}
else if (GTK_IS_CONTAINER (widget))
gtk_container_foreach (GTK_CONTAINER (widget),
gtk_menu_item_accel_name_foreach,
data);
}
}
static void
gtk_menu_item_parent_set (GtkWidget *widget,
GtkWidget *previous_parent)
{
GtkMenuItem *menu_item = GTK_MENU_ITEM (widget);
GtkMenu *menu = GTK_IS_MENU (widget->parent) ? GTK_MENU (widget->parent) : NULL;
if (menu)
_gtk_menu_item_refresh_accel_path (menu_item,
menu->accel_path,
menu->accel_group,
TRUE);
if (GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->parent_set)
GTK_WIDGET_CLASS (gtk_menu_item_parent_class)->parent_set (widget, previous_parent);
}
void
_gtk_menu_item_refresh_accel_path (GtkMenuItem *menu_item,
const gchar *prefix,
GtkAccelGroup *accel_group,
gboolean group_changed)
{
const gchar *path;
GtkWidget *widget;
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_return_if_fail (!accel_group || GTK_IS_ACCEL_GROUP (accel_group));
widget = GTK_WIDGET (menu_item);
if (!accel_group)
{
gtk_widget_set_accel_path (widget, NULL, NULL);
return;
}
path = _gtk_widget_get_accel_path (widget, NULL);
if (!path) /* no active accel_path yet */
{
path = menu_item->accel_path;
if (!path && prefix)
{
const gchar *postfix = NULL;
gchar *new_path;
/* try to construct one from label text */
gtk_container_foreach (GTK_CONTAINER (menu_item),
gtk_menu_item_accel_name_foreach,
&postfix);
if (postfix)
{
new_path = g_strconcat (prefix, "/", postfix, NULL);
path = menu_item->accel_path = (char*)g_intern_string (new_path);
g_free (new_path);
}
}
if (path)
gtk_widget_set_accel_path (widget, path, accel_group);
}
else if (group_changed) /* reinstall accelerators */
gtk_widget_set_accel_path (widget, path, accel_group);
}
/**
* gtk_menu_item_set_accel_path
* @menu_item: a valid #GtkMenuItem
* @accel_path: (allow-none): accelerator path, corresponding to this menu item's
* functionality, or %NULL to unset the current path.
*
* Set the accelerator path on @menu_item, through which runtime changes of the
* menu item's accelerator caused by the user can be identified and saved to
* persistant storage (see gtk_accel_map_save() on this).
* To setup a default accelerator for this menu item, call
* gtk_accel_map_add_entry() with the same @accel_path.
* See also gtk_accel_map_add_entry() on the specifics of accelerator paths,
* and gtk_menu_set_accel_path() for a more convenient variant of this function.
*
* This function is basically a convenience wrapper that handles calling
* gtk_widget_set_accel_path() with the appropriate accelerator group for
* the menu item.
*
* Note that you do need to set an accelerator on the parent menu with
* gtk_menu_set_accel_group() for this to work.
*
* Note that @accel_path string will be stored in a #GQuark. Therefore, if you
* pass a static string, you can save some memory by interning it first with
* g_intern_static_string().
*/
void
gtk_menu_item_set_accel_path (GtkMenuItem *menu_item,
const gchar *accel_path)
{
GtkWidget *widget;
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
g_return_if_fail (accel_path == NULL ||
(accel_path[0] == '<' && strchr (accel_path, '/')));
widget = GTK_WIDGET (menu_item);
/* store new path */
menu_item->accel_path = (char*)g_intern_string (accel_path);
/* forget accelerators associated with old path */
gtk_widget_set_accel_path (widget, NULL, NULL);
/* install accelerators associated with new path */
if (GTK_IS_MENU (widget->parent))
{
GtkMenu *menu = GTK_MENU (widget->parent);
if (menu->accel_group)
_gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
NULL,
menu->accel_group,
FALSE);
}
}
/**
* gtk_menu_item_get_accel_path
* @menu_item: a valid #GtkMenuItem
*
* Retrieve the accelerator path that was previously set on @menu_item.
*
* See gtk_menu_item_set_accel_path() for details.
*
* Returns: the accelerator path corresponding to this menu item's
* functionality, or %NULL if not set
*
* Since: 2.14
*/
G_CONST_RETURN gchar *
gtk_menu_item_get_accel_path (GtkMenuItem *menu_item)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
return menu_item->accel_path;
}
static void
gtk_menu_item_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkBin *bin;
g_return_if_fail (GTK_IS_MENU_ITEM (container));
g_return_if_fail (callback != NULL);
bin = GTK_BIN (container);
if (bin->child)
callback (bin->child, callback_data);
}
gboolean
_gtk_menu_item_is_selectable (GtkWidget *menu_item)
{
if ((!GTK_BIN (menu_item)->child &&
G_OBJECT_TYPE (menu_item) == GTK_TYPE_MENU_ITEM) ||
GTK_IS_SEPARATOR_MENU_ITEM (menu_item) ||
!GTK_WIDGET_IS_SENSITIVE (menu_item) ||
!GTK_WIDGET_VISIBLE (menu_item))
return FALSE;
return TRUE;
}
static void
gtk_menu_item_ensure_label (GtkMenuItem *menu_item)
{
GtkWidget *accel_label;
if (!GTK_BIN (menu_item)->child)
{
accel_label = (GtkWidget *)g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (menu_item), accel_label);
gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
GTK_WIDGET (menu_item));
gtk_widget_show (accel_label);
}
}
/**
* gtk_menu_item_set_label:
* @menu_item: a #GtkMenuItem
* @label: the text you want to set
*
* Sets @text on the @menu_item label
*
* Since: 2.16
**/
void
gtk_menu_item_set_label (GtkMenuItem *menu_item,
const gchar *label)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
GTK_MENU_ITEM_GET_CLASS (menu_item)->set_label (menu_item, label);
}
/**
* gtk_menu_item_get_label:
* @menu_item: a #GtkMenuItem
*
* Sets @text on the @menu_item label
*
* Returns: The text in the @menu_item label. This is the internal
* string used by the label, and must not be modified.
*
* Since: 2.16
**/
G_CONST_RETURN gchar *
gtk_menu_item_get_label (GtkMenuItem *menu_item)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), NULL);
return GTK_MENU_ITEM_GET_CLASS (menu_item)->get_label (menu_item);
}
/**
* gtk_menu_item_set_use_underline:
* @menu_item: a #GtkMenuItem
* @setting: %TRUE if underlines in the text indicate mnemonics
*
* If true, an underline in the text indicates the next character should be
* used for the mnemonic accelerator key.
*
* Since: 2.16
**/
void
gtk_menu_item_set_use_underline (GtkMenuItem *menu_item,
gboolean setting)
{
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
gtk_menu_item_ensure_label (menu_item);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
{
gtk_label_set_use_underline (GTK_LABEL (GTK_BIN (menu_item)->child), setting);
g_object_notify (G_OBJECT (menu_item), "use-underline");
}
}
/**
* gtk_menu_item_get_use_underline:
* @menu_item: a #GtkMenuItem
*
* Checks if an underline in the text indicates the next character should be
* used for the mnemonic accelerator key.
*
* Return value: %TRUE if an embedded underline in the label indicates
* the mnemonic accelerator key.
*
* Since: 2.16
**/
gboolean
gtk_menu_item_get_use_underline (GtkMenuItem *menu_item)
{
g_return_val_if_fail (GTK_IS_MENU_ITEM (menu_item), FALSE);
gtk_menu_item_ensure_label (menu_item);
if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
return gtk_label_get_use_underline (GTK_LABEL (GTK_BIN (menu_item)->child));
return FALSE;
}
#define __GTK_MENU_ITEM_C__
#include "gtkaliasdef.c"
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