* 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 Library General Public
+ * 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
- * Library General Public License for more details.
+ * 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 Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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.
*/
-#include <ctype.h>
+
+/*
+ * 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 <string.h> /* memset */
#include "gdk/gdkkeysyms.h"
+#include "gtkaccelmap.h"
+#include "gtkbindings.h"
+#include "gtklabel.h"
#include "gtkmain.h"
+#include "gtkmarshalers.h"
#include "gtkmenu.h"
#include "gtkmenuitem.h"
-#include "gtksignal.h"
+#include "gtktearoffmenuitem.h"
+#include "gtkwindow.h"
+#include "gtkhbox.h"
+#include "gtkvscrollbar.h"
+#include "gtksettings.h"
+#include "gtkintl.h"
-#define MENU_ITEM_CLASS(w) GTK_MENU_ITEM_CLASS (GTK_OBJECT (w)->klass)
+#define MENU_ITEM_CLASS(w) GTK_MENU_ITEM_GET_CLASS (w)
+#define MENU_NEEDS_RESIZE(m) GTK_MENU_SHELL (m)->menu_flag
+#define DEFAULT_POPUP_DELAY 225
+#define DEFAULT_POPDOWN_DELAY 1000
+
+#define NAVIGATION_REGION_OVERSHOOT 50 /* How much the navigation region
+ * extends below the submenu
+ */
+
+#define MENU_SCROLL_STEP1 8
+#define MENU_SCROLL_STEP2 15
+#define MENU_SCROLL_ARROW_HEIGHT 16
+#define MENU_SCROLL_FAST_ZONE 8
+#define MENU_SCROLL_TIMEOUT1 50
+#define MENU_SCROLL_TIMEOUT2 50
typedef struct _GtkMenuAttachData GtkMenuAttachData;
+typedef struct _GtkMenuPrivate GtkMenuPrivate;
struct _GtkMenuAttachData
{
GtkMenuDetachFunc detacher;
};
+struct _GtkMenuPrivate
+{
+ gboolean have_position;
+ gint x;
+ gint y;
+};
+
+enum {
+ MOVE_SCROLL,
+ LAST_SIGNAL
+};
+
+enum {
+ PROP_0,
+ PROP_TEAROFF_TITLE
+};
-static void gtk_menu_class_init (GtkMenuClass *klass);
-static void gtk_menu_init (GtkMenu *menu);
-static void gtk_menu_destroy (GtkObject *object);
-static void gtk_menu_show (GtkWidget *widget);
-static void gtk_menu_map (GtkWidget *widget);
-static void gtk_menu_unmap (GtkWidget *widget);
-static void gtk_menu_realize (GtkWidget *widget);
-static void gtk_menu_size_request (GtkWidget *widget,
- GtkRequisition *requisition);
-static void gtk_menu_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static void gtk_menu_paint (GtkWidget *widget);
-static void gtk_menu_draw (GtkWidget *widget,
- GdkRectangle *area);
-static gint gtk_menu_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static gint gtk_menu_configure (GtkWidget *widget,
- GdkEventConfigure *event);
-static gint gtk_menu_key_press (GtkWidget *widget,
- GdkEventKey *event);
-static gint gtk_menu_need_resize (GtkContainer *container);
-static void gtk_menu_deactivate (GtkMenuShell *menu_shell);
+static void gtk_menu_class_init (GtkMenuClass *klass);
+static void gtk_menu_init (GtkMenu *menu);
+static void gtk_menu_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_menu_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void gtk_menu_destroy (GtkObject *object);
+static void gtk_menu_finalize (GObject *object);
+static void gtk_menu_realize (GtkWidget *widget);
+static void gtk_menu_unrealize (GtkWidget *widget);
+static void gtk_menu_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void gtk_menu_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void gtk_menu_paint (GtkWidget *widget,
+ GdkEventExpose *expose);
+static void gtk_menu_show (GtkWidget *widget);
+static gboolean gtk_menu_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+static gboolean gtk_menu_key_press (GtkWidget *widget,
+ GdkEventKey *event);
+static gboolean gtk_menu_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_menu_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_menu_motion_notify (GtkWidget *widget,
+ GdkEventMotion *event);
+static gboolean gtk_menu_enter_notify (GtkWidget *widget,
+ GdkEventCrossing *event);
+static gboolean gtk_menu_leave_notify (GtkWidget *widget,
+ GdkEventCrossing *event);
+static void gtk_menu_scroll_to (GtkMenu *menu,
+ gint offset);
+
+static void gtk_menu_stop_scrolling (GtkMenu *menu);
+static void gtk_menu_remove_scroll_timeout (GtkMenu *menu);
+static gboolean gtk_menu_scroll_timeout (gpointer data);
+
+static void gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
+ GtkWidget *menu_item);
+static void gtk_menu_select_item (GtkMenuShell *menu_shell,
+ GtkWidget *menu_item);
+static void gtk_menu_real_insert (GtkMenuShell *menu_shell,
+ GtkWidget *child,
+ gint position);
+static void gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
+ GtkMenu *menu);
+static void gtk_menu_handle_scrolling (GtkMenu *menu,
+ gboolean enter);
+static void gtk_menu_set_tearoff_hints (GtkMenu *menu,
+ gint width);
+static void gtk_menu_style_set (GtkWidget *widget,
+ GtkStyle *previous_style);
+static gboolean gtk_menu_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+static gint gtk_menu_get_popup_delay (GtkMenuShell *menu_shell);
+static void gtk_menu_real_move_scroll (GtkMenu *menu,
+ GtkScrollType type);
+
+static void gtk_menu_stop_navigating_submenu (GtkMenu *menu);
+static gboolean gtk_menu_stop_navigating_submenu_cb (gpointer user_data);
+static gboolean gtk_menu_navigating_submenu (GtkMenu *menu,
+ gint event_x,
+ gint event_y);
+static void gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
+ GtkMenuItem *menu_item,
+ GdkEventCrossing *event);
+
+static void gtk_menu_deactivate (GtkMenuShell *menu_shell);
static void gtk_menu_show_all (GtkWidget *widget);
static void gtk_menu_hide_all (GtkWidget *widget);
+static void gtk_menu_position (GtkMenu *menu);
+static void gtk_menu_reparent (GtkMenu *menu,
+ GtkWidget *new_parent,
+ gboolean unrealize);
+static void gtk_menu_remove (GtkContainer *menu,
+ GtkWidget *widget);
+
+static void gtk_menu_update_title (GtkMenu *menu);
+
+static void menu_grab_transfer_window_destroy (GtkMenu *menu);
+static GdkWindow *menu_grab_transfer_window_get (GtkMenu *menu);
+
+static void _gtk_menu_refresh_accel_paths (GtkMenu *menu,
+ gboolean group_changed);
static GtkMenuShellClass *parent_class = NULL;
-static const gchar *attach_data_key = "gtk-menu-attach-data";
+static const gchar *attach_data_key = "gtk-menu-attach-data";
+static guint menu_signals[LAST_SIGNAL] = { 0 };
-guint
-gtk_menu_get_type ()
+GtkMenuPrivate *
+gtk_menu_get_private (GtkMenu *menu)
{
- static guint menu_type = 0;
+ GtkMenuPrivate *private;
+ static GQuark private_quark = 0;
+
+ if (!private_quark)
+ private_quark = g_quark_from_static_string ("gtk-menu-private");
+ private = g_object_get_qdata (G_OBJECT (menu), private_quark);
+
+ if (!private)
+ {
+ private = g_new0 (GtkMenuPrivate, 1);
+ private->have_position = FALSE;
+
+ g_object_set_qdata_full (G_OBJECT (menu), private_quark,
+ private, g_free);
+ }
+
+ return private;
+}
+
+GType
+gtk_menu_get_type (void)
+{
+ static GType menu_type = 0;
+
if (!menu_type)
{
- GtkTypeInfo menu_info =
+ static const GTypeInfo menu_info =
{
- "GtkMenu",
- sizeof (GtkMenu),
sizeof (GtkMenuClass),
- (GtkClassInitFunc) gtk_menu_class_init,
- (GtkObjectInitFunc) gtk_menu_init,
- (GtkArgSetFunc) NULL,
- (GtkArgGetFunc) NULL,
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) gtk_menu_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (GtkMenu),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) gtk_menu_init,
};
-
- menu_type = gtk_type_unique (gtk_menu_shell_get_type (), &menu_info);
+
+ menu_type = g_type_register_static (GTK_TYPE_MENU_SHELL, "GtkMenu",
+ &menu_info, 0);
}
-
+
return menu_type;
}
static void
gtk_menu_class_init (GtkMenuClass *class)
{
- GtkObjectClass *object_class;
- GtkWidgetClass *widget_class;
- GtkContainerClass *container_class;
- GtkMenuShellClass *menu_shell_class;
-
- object_class = (GtkObjectClass*) class;
- widget_class = (GtkWidgetClass*) class;
- container_class = (GtkContainerClass*) class;
- menu_shell_class = (GtkMenuShellClass*) class;
- parent_class = gtk_type_class (gtk_menu_shell_get_type ());
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+ GtkContainerClass *container_class = GTK_CONTAINER_CLASS (class);
+ GtkMenuShellClass *menu_shell_class = GTK_MENU_SHELL_CLASS (class);
+ GtkBindingSet *binding_set;
+
+ parent_class = g_type_class_peek_parent (class);
+
+ gobject_class->finalize = gtk_menu_finalize;
+ gobject_class->set_property = gtk_menu_set_property;
+ gobject_class->get_property = gtk_menu_get_property;
+
+ menu_signals[MOVE_SCROLL] =
+ _gtk_binding_signal_new ("move_scroll",
+ G_OBJECT_CLASS_TYPE (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_CALLBACK (gtk_menu_real_move_scroll),
+ NULL, NULL,
+ _gtk_marshal_VOID__ENUM,
+ G_TYPE_NONE, 1,
+ GTK_TYPE_SCROLL_TYPE);
+
+ g_object_class_install_property (gobject_class,
+ PROP_TEAROFF_TITLE,
+ g_param_spec_string ("tearoff-title",
+ _("Tearoff Title"),
+ _("A title that may be displayed by the window manager when this menu is torn-off"),
+ "",
+ G_PARAM_READABLE | G_PARAM_WRITABLE));
object_class->destroy = gtk_menu_destroy;
-
- widget_class->show = gtk_menu_show;
- widget_class->map = gtk_menu_map;
- widget_class->unmap = gtk_menu_unmap;
+
widget_class->realize = gtk_menu_realize;
- widget_class->draw = gtk_menu_draw;
+ widget_class->unrealize = gtk_menu_unrealize;
widget_class->size_request = gtk_menu_size_request;
widget_class->size_allocate = gtk_menu_size_allocate;
+ widget_class->show = gtk_menu_show;
widget_class->expose_event = gtk_menu_expose;
- widget_class->configure_event = gtk_menu_configure;
widget_class->key_press_event = gtk_menu_key_press;
+ widget_class->button_press_event = gtk_menu_button_press;
+ widget_class->button_release_event = gtk_menu_button_release;
+ widget_class->motion_notify_event = gtk_menu_motion_notify;
widget_class->show_all = gtk_menu_show_all;
- widget_class->hide_all = gtk_menu_hide_all;
+ widget_class->hide_all = gtk_menu_hide_all;
+ widget_class->enter_notify_event = gtk_menu_enter_notify;
+ widget_class->leave_notify_event = gtk_menu_leave_notify;
+ widget_class->motion_notify_event = gtk_menu_motion_notify;
+ widget_class->style_set = gtk_menu_style_set;
+ widget_class->focus = gtk_menu_focus;
+
+ container_class->remove = gtk_menu_remove;
- container_class->need_resize = gtk_menu_need_resize;
-
menu_shell_class->submenu_placement = GTK_LEFT_RIGHT;
menu_shell_class->deactivate = gtk_menu_deactivate;
+ menu_shell_class->select_item = gtk_menu_select_item;
+ menu_shell_class->insert = gtk_menu_real_insert;
+ menu_shell_class->get_popup_delay = gtk_menu_get_popup_delay;
+
+ binding_set = gtk_binding_set_by_class (class);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Up, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_PREV);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Up, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_PREV);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Down, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_NEXT);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Down, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_NEXT);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Left, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_PARENT);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Left, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_PARENT);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Right, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_CHILD);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Right, 0,
+ "move_current", 1,
+ GTK_TYPE_MENU_DIRECTION_TYPE,
+ GTK_MENU_DIR_CHILD);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Home, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_START);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Home, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_START);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_End, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_END);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_End, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_END);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Page_Up, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_PAGE_UP);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Page_Up, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_PAGE_UP);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_Page_Down, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_PAGE_DOWN);
+ gtk_binding_entry_add_signal (binding_set,
+ GDK_KP_Page_Down, 0,
+ "move_scroll", 1,
+ GTK_TYPE_SCROLL_TYPE,
+ GTK_SCROLL_PAGE_DOWN);
+
+ gtk_settings_install_property (g_param_spec_boolean ("gtk-can-change-accels",
+ _("Can change accelerators"),
+ _("Whether menu accelerators can be changed by pressing a key over the menu item"),
+ FALSE,
+ G_PARAM_READWRITE));
+
+ gtk_settings_install_property (g_param_spec_int ("gtk-menu-popup-delay",
+ _("Delay before submenus appear"),
+ _("Minimum time the pointer must stay over a menu item before the submenu appear"),
+ 0,
+ G_MAXINT,
+ DEFAULT_POPUP_DELAY,
+ G_PARAM_READWRITE));
+
+ gtk_settings_install_property (g_param_spec_int ("gtk-menu-popdown-delay",
+ _("Delay before hiding a submenu"),
+ _("The time before hiding a submenu when the pointer is moving towards the submenu"),
+ 0,
+ G_MAXINT,
+ DEFAULT_POPDOWN_DELAY,
+ G_PARAM_READWRITE));
+
+}
+
+
+static void
+gtk_menu_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkMenu *menu;
+
+ menu = GTK_MENU (object);
+
+ switch (prop_id)
+ {
+ case PROP_TEAROFF_TITLE:
+ gtk_menu_set_title (menu, g_value_get_string (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_menu_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkMenu *menu;
+
+ menu = GTK_MENU (object);
+
+ switch (prop_id)
+ {
+ case PROP_TEAROFF_TITLE:
+ g_value_set_string (value, gtk_menu_get_title (menu));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gtk_menu_window_event (GtkWidget *window,
+ GdkEvent *event,
+ GtkWidget *menu)
+{
+ gboolean handled = FALSE;
+
+ g_object_ref (window);
+ g_object_ref (menu);
+
+ switch (event->type)
+ {
+ case GDK_KEY_PRESS:
+ case GDK_KEY_RELEASE:
+ handled = gtk_widget_event (menu, event);
+ break;
+ default:
+ break;
+ }
+
+ g_object_unref (window);
+ g_object_unref (menu);
+
+ return handled;
}
static void
-gtk_menu_init (GtkMenu *menu)
+gtk_menu_window_size_request (GtkWidget *window,
+ GtkRequisition *requisition,
+ GtkMenu *menu)
{
- GTK_WIDGET_SET_FLAGS (menu, GTK_TOPLEVEL);
+ GtkMenuPrivate *private = gtk_menu_get_private (menu);
+
+ if (private->have_position)
+ {
+ GdkScreen *screen = gtk_widget_get_screen (window);
+ gint screen_height = gdk_screen_get_height (screen);
+
+ if (private->y + requisition->height > screen_height)
+ requisition->height = screen_height - private->y;
+ }
+}
+static void
+gtk_menu_init (GtkMenu *menu)
+{
menu->parent_menu_item = NULL;
menu->old_active_menu_item = NULL;
- menu->accelerator_table = NULL;
+ menu->accel_group = NULL;
menu->position_func = NULL;
menu->position_func_data = NULL;
+ menu->toggle_size = 0;
+
+ menu->toplevel = g_object_connect (g_object_new (GTK_TYPE_WINDOW,
+ "type", GTK_WINDOW_POPUP,
+ "child", menu,
+ NULL),
+ "signal::event", gtk_menu_window_event, menu,
+ "signal::size_request", gtk_menu_window_size_request, menu,
+ "signal::destroy", gtk_widget_destroyed, &menu->toplevel,
+ NULL);
+ gtk_window_set_resizable (GTK_WINDOW (menu->toplevel), FALSE);
+ gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->toplevel), 0);
+
+ /* Refloat the menu, so that reference counting for the menu isn't
+ * affected by it being a child of the toplevel
+ */
+ GTK_WIDGET_SET_FLAGS (menu, GTK_FLOATING);
+ menu->needs_destruction_ref_count = TRUE;
+
+ menu->view_window = NULL;
+ menu->bin_window = NULL;
+
+ menu->scroll_offset = 0;
+ menu->scroll_step = 0;
+ menu->timeout_id = 0;
+ menu->scroll_fast = FALSE;
- GTK_MENU_SHELL (menu)->menu_flag = TRUE;
+ menu->tearoff_window = NULL;
+ menu->tearoff_hbox = NULL;
+ menu->torn_off = FALSE;
+ menu->tearoff_active = FALSE;
+ menu->tearoff_adjustment = NULL;
+ menu->tearoff_scrollbar = NULL;
+
+ menu->upper_arrow_visible = FALSE;
+ menu->lower_arrow_visible = FALSE;
+ menu->upper_arrow_prelight = FALSE;
+ menu->lower_arrow_prelight = FALSE;
+
+ MENU_NEEDS_RESIZE (menu) = TRUE;
}
static void
-gtk_menu_destroy (GtkObject *object)
+gtk_menu_destroy (GtkObject *object)
{
+ GtkMenu *menu;
GtkMenuAttachData *data;
- g_return_if_fail (object != NULL);
g_return_if_fail (GTK_IS_MENU (object));
- gtk_widget_ref (GTK_WIDGET (object));
+ menu = GTK_MENU (object);
- data = gtk_object_get_data (object, attach_data_key);
+ gtk_menu_stop_scrolling (menu);
+
+ data = g_object_get_data (G_OBJECT (object), attach_data_key);
if (data)
- gtk_menu_detach (GTK_MENU (object));
+ gtk_menu_detach (menu);
+
+ gtk_menu_stop_navigating_submenu (menu);
+
+ if (menu->old_active_menu_item)
+ {
+ g_object_unref (menu->old_active_menu_item);
+ menu->old_active_menu_item = NULL;
+ }
+
+ /* Add back the reference count for being a child */
+ if (menu->needs_destruction_ref_count)
+ {
+ menu->needs_destruction_ref_count = FALSE;
+ g_object_ref (object);
+ }
+
+ if (menu->accel_group)
+ {
+ g_object_unref (menu->accel_group);
+ menu->accel_group = NULL;
+ }
+
+ if (menu->toplevel)
+ gtk_widget_destroy (menu->toplevel);
+ if (menu->tearoff_window)
+ gtk_widget_destroy (menu->tearoff_window);
+
+ GTK_OBJECT_CLASS (parent_class)->destroy (object);
+}
+
+static void
+gtk_menu_finalize (GObject *object)
+{
+ GtkMenu *menu = GTK_MENU (object);
- gtk_menu_set_accelerator_table (GTK_MENU (object), NULL);
+ g_free (menu->accel_path);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+static void
+menu_change_screen (GtkMenu *menu,
+ GdkScreen *new_screen)
+{
+ if (menu->torn_off)
+ {
+ gtk_window_set_screen (GTK_WINDOW (menu->tearoff_window), new_screen);
+ gtk_menu_position (menu);
+ }
- gtk_widget_unref (GTK_WIDGET (object));
+ gtk_window_set_screen (GTK_WINDOW (menu->toplevel), new_screen);
}
+static void
+attach_widget_screen_changed (GtkWidget *attach_widget,
+ GdkScreen *previous_screen,
+ GtkMenu *menu)
+{
+ if (gtk_widget_has_screen (attach_widget) &&
+ !g_object_get_data (G_OBJECT (menu), "gtk-menu-explicit-screen"))
+ {
+ menu_change_screen (menu, gtk_widget_get_screen (attach_widget));
+ }
+}
void
-gtk_menu_attach_to_widget (GtkMenu *menu,
- GtkWidget *attach_widget,
- GtkMenuDetachFunc detacher)
+gtk_menu_attach_to_widget (GtkMenu *menu,
+ GtkWidget *attach_widget,
+ GtkMenuDetachFunc detacher)
{
GtkMenuAttachData *data;
-
- g_return_if_fail (menu != NULL);
+
g_return_if_fail (GTK_IS_MENU (menu));
- g_return_if_fail (attach_widget != NULL);
g_return_if_fail (GTK_IS_WIDGET (attach_widget));
g_return_if_fail (detacher != NULL);
-
+
/* keep this function in sync with gtk_widget_set_parent()
*/
-
- data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key);
+
+ data = g_object_get_data (G_OBJECT (menu), attach_data_key);
if (data)
{
g_warning ("gtk_menu_attach_to_widget(): menu already attached to %s",
- gtk_type_name (GTK_OBJECT_TYPE (data->attach_widget)));
- return;
+ g_type_name (G_TYPE_FROM_INSTANCE (data->attach_widget)));
+ return;
}
-
- gtk_widget_ref (GTK_WIDGET (menu));
+
+ g_object_ref (menu);
gtk_object_sink (GTK_OBJECT (menu));
-
+
data = g_new (GtkMenuAttachData, 1);
data->attach_widget = attach_widget;
+
+ g_signal_connect (attach_widget, "screen_changed",
+ G_CALLBACK (attach_widget_screen_changed), menu);
+ attach_widget_screen_changed (attach_widget, NULL, menu);
+
data->detacher = detacher;
- gtk_object_set_data (GTK_OBJECT (menu), attach_data_key, data);
-
+ g_object_set_data (G_OBJECT (menu), attach_data_key, data);
+
if (GTK_WIDGET_STATE (menu) != GTK_STATE_NORMAL)
gtk_widget_set_state (GTK_WIDGET (menu), GTK_STATE_NORMAL);
-
+
/* we don't need to set the style here, since
* we are a toplevel widget.
*/
+
+ /* Fallback title for menu comes from attach widget */
+ gtk_menu_update_title (menu);
}
GtkWidget*
-gtk_menu_get_attach_widget (GtkMenu *menu)
+gtk_menu_get_attach_widget (GtkMenu *menu)
{
GtkMenuAttachData *data;
-
- g_return_val_if_fail (menu != NULL, NULL);
+
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
-
- data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key);
+
+ data = g_object_get_data (G_OBJECT (menu), attach_data_key);
if (data)
return data->attach_widget;
return NULL;
}
void
-gtk_menu_detach (GtkMenu *menu)
+gtk_menu_detach (GtkMenu *menu)
{
GtkMenuAttachData *data;
-
- g_return_if_fail (menu != NULL);
+
g_return_if_fail (GTK_IS_MENU (menu));
-
+
/* keep this function in sync with gtk_widget_unparent()
*/
- data = gtk_object_get_data (GTK_OBJECT (menu), attach_data_key);
+ data = g_object_get_data (G_OBJECT (menu), attach_data_key);
if (!data)
{
g_warning ("gtk_menu_detach(): menu is not attached");
return;
}
- gtk_object_remove_data (GTK_OBJECT (menu), attach_data_key);
+ g_object_set_data (G_OBJECT (menu), attach_data_key, NULL);
+
+ g_signal_handlers_disconnect_by_func (data->attach_widget,
+ (gpointer) attach_widget_screen_changed,
+ menu);
data->detacher (data->attach_widget, menu);
-
+
if (GTK_WIDGET_REALIZED (menu))
gtk_widget_unrealize (GTK_WIDGET (menu));
-
+
g_free (data);
+
+ /* Fallback title for menu comes from attach widget */
+ gtk_menu_update_title (menu);
+
+ g_object_unref (menu);
+}
+
+static void
+gtk_menu_remove (GtkContainer *container,
+ GtkWidget *widget)
+{
+ GtkMenu *menu;
+ g_return_if_fail (GTK_IS_MENU (container));
+ g_return_if_fail (GTK_IS_MENU_ITEM (widget));
+
+ menu = GTK_MENU (container);
+
+ /* Clear out old_active_menu_item if it matches the item we are removing
+ */
+ if (menu->old_active_menu_item == widget)
+ {
+ g_object_unref (menu->old_active_menu_item);
+ menu->old_active_menu_item = NULL;
+ }
- gtk_widget_unref (GTK_WIDGET (menu));
+ GTK_CONTAINER_CLASS (parent_class)->remove (container, widget);
}
+
GtkWidget*
-gtk_menu_new ()
+gtk_menu_new (void)
{
- return GTK_WIDGET (gtk_type_new (gtk_menu_get_type ()));
+ return g_object_new (GTK_TYPE_MENU, NULL);
}
-void
-gtk_menu_append (GtkMenu *menu,
- GtkWidget *child)
+static void
+gtk_menu_real_insert (GtkMenuShell *menu_shell,
+ GtkWidget *child,
+ gint position)
{
- gtk_menu_shell_append (GTK_MENU_SHELL (menu), child);
+ if (GTK_WIDGET_REALIZED (menu_shell))
+ gtk_widget_set_parent_window (child, GTK_MENU (menu_shell)->bin_window);
+
+ GTK_MENU_SHELL_CLASS (parent_class)->insert (menu_shell, child, position);
}
-void
-gtk_menu_prepend (GtkMenu *menu,
- GtkWidget *child)
+static void
+gtk_menu_tearoff_bg_copy (GtkMenu *menu)
{
- gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), child);
+ GtkWidget *widget;
+ gint width, height;
+
+ widget = GTK_WIDGET (menu);
+
+ if (menu->torn_off)
+ {
+ GdkPixmap *pixmap;
+ GdkGC *gc;
+ GdkGCValues gc_values;
+
+ menu->tearoff_active = FALSE;
+ menu->saved_scroll_offset = menu->scroll_offset;
+
+ gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
+ gc = gdk_gc_new_with_values (widget->window,
+ &gc_values, GDK_GC_SUBWINDOW);
+
+ gdk_drawable_get_size (menu->tearoff_window->window, &width, &height);
+
+ pixmap = gdk_pixmap_new (menu->tearoff_window->window,
+ width,
+ height,
+ -1);
+
+ gdk_draw_drawable (pixmap, gc,
+ menu->tearoff_window->window,
+ 0, 0, 0, 0, -1, -1);
+ g_object_unref (gc);
+
+ gtk_widget_set_size_request (menu->tearoff_window,
+ width,
+ height);
+
+ gdk_window_set_back_pixmap (menu->tearoff_window->window, pixmap, FALSE);
+ g_object_unref (pixmap);
+ }
}
-void
-gtk_menu_insert (GtkMenu *menu,
- GtkWidget *child,
- gint position)
+static gboolean
+popup_grab_on_window (GdkWindow *window,
+ guint32 activate_time)
{
- gtk_menu_shell_insert (GTK_MENU_SHELL (menu), child, position);
+ if ((gdk_pointer_grab (window, TRUE,
+ GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
+ GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
+ GDK_POINTER_MOTION_MASK,
+ NULL, NULL, activate_time) == 0))
+ {
+ if (gdk_keyboard_grab (window, TRUE,
+ activate_time) == 0)
+ return TRUE;
+ else
+ {
+ gdk_display_pointer_ungrab (gdk_drawable_get_display (window),
+ activate_time);
+ return FALSE;
+ }
+ }
+
+ return FALSE;
}
+/**
+ * gtk_menu_popup:
+ * @menu: a #GtkMenu.
+ * @parent_menu_shell: the menu shell containing the triggering menu item, or %NULL
+ * @parent_menu_item: the menu item whose activation triggered the popup, or %NULL
+ * @func: a user supplied function used to position the menu, or %NULL
+ * @data: user supplied data to be passed to @func.
+ * @button: the mouse button which was pressed to initiate the event.
+ * @activate_time: the time at which the activation event occurred.
+ *
+ * Displays a menu and makes it available for selection. Applications can use
+ * this function to display context-sensitive menus, and will typically supply
+ * %NULL for the @parent_menu_shell, @parent_menu_item, @func and @data
+ * parameters. The default menu positioning function will position the menu
+ * at the current mouse cursor position.
+ *
+ * The @button parameter should be the mouse button pressed to initiate
+ * the menu popup. If the menu popup was initiated by something other than
+ * a mouse button press, such as a mouse button release or a keypress,
+ * @button should be 0.
+ *
+ * The @activate_time parameter should be the time stamp of the event that
+ * initiated the popup. If such an event is not available, use
+ * gtk_get_current_event_time() instead.
+ *
+ */
void
-gtk_menu_popup (GtkMenu *menu,
- GtkWidget *parent_menu_shell,
- GtkWidget *parent_menu_item,
+gtk_menu_popup (GtkMenu *menu,
+ GtkWidget *parent_menu_shell,
+ GtkWidget *parent_menu_item,
GtkMenuPositionFunc func,
- gpointer data,
- guint button,
- guint32 activate_time)
+ gpointer data,
+ guint button,
+ guint32 activate_time)
{
+ GtkWidget *widget;
GtkWidget *xgrab_shell;
GtkWidget *parent;
+ GdkEvent *current_event;
+ GtkMenuShell *menu_shell;
- g_return_if_fail (menu != NULL);
g_return_if_fail (GTK_IS_MENU (menu));
-
- GTK_MENU_SHELL (menu)->parent_menu_shell = parent_menu_shell;
- GTK_MENU_SHELL (menu)->active = TRUE;
- GTK_MENU_SHELL (menu)->button = button;
-
- menu->parent_menu_item = parent_menu_item;
- menu->position_func = func;
- menu->position_func_data = data;
- GTK_MENU_SHELL (menu)->activate_time = activate_time;
-
- gtk_widget_show (GTK_WIDGET (menu));
-
+
+ widget = GTK_WIDGET (menu);
+ menu_shell = GTK_MENU_SHELL (menu);
+
+ menu_shell->parent_menu_shell = parent_menu_shell;
+
/* Find the last viewable ancestor, and make an X grab on it
*/
parent = GTK_WIDGET (menu);
}
tmp = tmp->parent;
}
-
+
if (viewable)
xgrab_shell = parent;
-
+
parent = GTK_MENU_SHELL (parent)->parent_menu_shell;
}
- if (xgrab_shell && (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab))
+ /* We want to receive events generated when we map the menu; unfortunately,
+ * since there is probably already an implicit grab in place from the
+ * button that the user used to pop up the menu, we won't receive then --
+ * in particular, the EnterNotify when the menu pops up under the pointer.
+ *
+ * If we are grabbing on a parent menu shell, no problem; just grab on
+ * that menu shell first before popping up the window with owner_events = TRUE.
+ *
+ * When grabbing on the menu itself, things get more convuluted - we
+ * we do an explicit grab on a specially created window with
+ * owner_events = TRUE, which we override further down with a grab
+ * on the menu. (We can't grab on the menu until it is mapped; we
+ * probably could just leave the grab on the other window, with a
+ * little reorganization of the code in gtkmenu*).
+ */
+ if (xgrab_shell && xgrab_shell != widget)
{
- GdkCursor *cursor = gdk_cursor_new (GDK_ARROW);
-
- GTK_MENU_SHELL (xgrab_shell)->have_xgrab =
- (gdk_pointer_grab (xgrab_shell->window, TRUE,
- GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
- GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK,
- NULL, cursor, activate_time) == 0);
- gdk_cursor_destroy (cursor);
+ if (popup_grab_on_window (xgrab_shell->window, activate_time))
+ GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
+ }
+ else
+ {
+ GdkWindow *transfer_window;
+
+ xgrab_shell = widget;
+ transfer_window = menu_grab_transfer_window_get (menu);
+ if (popup_grab_on_window (transfer_window, activate_time))
+ GTK_MENU_SHELL (xgrab_shell)->have_xgrab = TRUE;
+ }
+
+ if (!GTK_MENU_SHELL (xgrab_shell)->have_xgrab)
+ {
+ /* We failed to make our pointer/keyboard grab. Rather than leaving the user
+ * with a stuck up window, we just abort here. Presumably the user will
+ * try again.
+ */
+ menu_shell->parent_menu_shell = NULL;
+ menu_grab_transfer_window_destroy (menu);
+ return;
+ }
+
+ menu_shell->active = TRUE;
+ menu_shell->button = button;
+
+ /* If we are popping up the menu from something other than, a button
+ * press then, as a heuristic, we ignore enter events for the menu
+ * until we get a MOTION_NOTIFY.
+ */
+
+ current_event = gtk_get_current_event ();
+ if (current_event)
+ {
+ if ((current_event->type != GDK_BUTTON_PRESS) &&
+ (current_event->type != GDK_ENTER_NOTIFY))
+ menu_shell->ignore_enter = TRUE;
+
+ gdk_event_free (current_event);
+ }
+
+ if (menu->torn_off)
+ {
+ gtk_menu_tearoff_bg_copy (menu);
+
+ gtk_menu_reparent (menu, menu->toplevel, FALSE);
}
+
+ menu->parent_menu_item = parent_menu_item;
+ menu->position_func = func;
+ menu->position_func_data = data;
+ menu_shell->activate_time = activate_time;
+
+ /* We need to show the menu here rather in the init function because
+ * code expects to be able to tell if the menu is onscreen by
+ * looking at the GTK_WIDGET_VISIBLE (menu)
+ */
+ gtk_widget_show (GTK_WIDGET (menu));
+
+ /* Position the menu, possibly changing the size request
+ */
+ gtk_menu_position (menu);
+
+ /* Compute the size of the toplevel and realize it so we
+ * can scroll correctly.
+ */
+ {
+ GtkRequisition tmp_request;
+ GtkAllocation tmp_allocation = { 0, };
+
+ gtk_widget_size_request (menu->toplevel, &tmp_request);
+
+ tmp_allocation.width = tmp_request.width;
+ tmp_allocation.height = tmp_request.height;
+
+ gtk_widget_size_allocate (menu->toplevel, &tmp_allocation);
+
+ gtk_widget_realize (GTK_WIDGET (menu));
+ }
+
+ gtk_menu_scroll_to (menu, menu->scroll_offset);
+
+ /* Once everything is set up correctly, map the toplevel window on
+ the screen.
+ */
+ gtk_widget_show (menu->toplevel);
+
+ if (xgrab_shell == widget)
+ popup_grab_on_window (widget->window, activate_time); /* Should always succeed */
gtk_grab_add (GTK_WIDGET (menu));
}
void
gtk_menu_popdown (GtkMenu *menu)
{
+ GtkMenuPrivate *private;
GtkMenuShell *menu_shell;
- g_return_if_fail (menu != NULL);
g_return_if_fail (GTK_IS_MENU (menu));
-
+
menu_shell = GTK_MENU_SHELL (menu);
-
+ private = gtk_menu_get_private (menu);
+
menu_shell->parent_menu_shell = NULL;
menu_shell->active = FALSE;
+ menu_shell->ignore_enter = FALSE;
+
+ private->have_position = FALSE;
+ gtk_menu_stop_scrolling (menu);
+
+ gtk_menu_stop_navigating_submenu (menu);
+
if (menu_shell->active_menu_item)
{
+ if (menu->old_active_menu_item)
+ g_object_unref (menu->old_active_menu_item);
menu->old_active_menu_item = menu_shell->active_menu_item;
- gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
- menu_shell->active_menu_item = NULL;
+ g_object_ref (menu->old_active_menu_item);
}
+ gtk_menu_shell_deselect (menu_shell);
+
/* The X Grab, if present, will automatically be removed when we hide
* the window */
- gtk_widget_hide (GTK_WIDGET (menu));
- menu_shell->have_xgrab = FALSE;
+ gtk_widget_hide (menu->toplevel);
+ if (menu->torn_off)
+ {
+ gtk_widget_set_size_request (menu->tearoff_window, -1, -1);
+
+ if (GTK_BIN (menu->toplevel)->child)
+ {
+ gtk_menu_reparent (menu, menu->tearoff_hbox, TRUE);
+ }
+ else
+ {
+ /* We popped up the menu from the tearoff, so we need to
+ * release the grab - we aren't actually hiding the menu.
+ */
+ if (menu_shell->have_xgrab)
+ {
+ GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu));
+
+ gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
+ gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
+ }
+ }
+
+ /* gtk_menu_popdown is called each time a menu item is selected from
+ * a torn off menu. Only scroll back to the saved position if the
+ * non-tearoff menu was popped down.
+ */
+ if (!menu->tearoff_active)
+ gtk_menu_scroll_to (menu, menu->saved_scroll_offset);
+ menu->tearoff_active = TRUE;
+ }
+ else
+ gtk_widget_hide (GTK_WIDGET (menu));
+
+ menu_shell->have_xgrab = FALSE;
gtk_grab_remove (GTK_WIDGET (menu));
+
+ menu_grab_transfer_window_destroy (menu);
}
GtkWidget*
{
GtkWidget *child;
GList *children;
-
- g_return_val_if_fail (menu != NULL, NULL);
+
g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
-
+
if (!menu->old_active_menu_item)
{
child = NULL;
children = GTK_MENU_SHELL (menu)->children;
-
+
while (children)
{
child = children->data;
children = children->next;
-
+
if (GTK_BIN (child)->child)
break;
child = NULL;
}
-
+
menu->old_active_menu_item = child;
+ if (menu->old_active_menu_item)
+ g_object_ref (menu->old_active_menu_item);
}
-
+
return menu->old_active_menu_item;
}
{
GtkWidget *child;
GList *tmp_list;
-
- g_return_if_fail (menu != NULL);
+
g_return_if_fail (GTK_IS_MENU (menu));
-
+
tmp_list = g_list_nth (GTK_MENU_SHELL (menu)->children, index);
if (tmp_list)
{
child = tmp_list->data;
if (GTK_BIN (child)->child)
- menu->old_active_menu_item = child;
+ {
+ if (menu->old_active_menu_item)
+ g_object_unref (menu->old_active_menu_item);
+ menu->old_active_menu_item = child;
+ g_object_ref (menu->old_active_menu_item);
+ }
}
}
void
-gtk_menu_set_accelerator_table (GtkMenu *menu,
- GtkAcceleratorTable *table)
+gtk_menu_set_accel_group (GtkMenu *menu,
+ GtkAccelGroup *accel_group)
{
- g_return_if_fail (menu != NULL);
g_return_if_fail (GTK_IS_MENU (menu));
-
- if (menu->accelerator_table != table)
+
+ if (menu->accel_group != accel_group)
{
- if (menu->accelerator_table)
- gtk_accelerator_table_unref (menu->accelerator_table);
- menu->accelerator_table = table;
- if (menu->accelerator_table)
- gtk_accelerator_table_ref (menu->accelerator_table);
+ if (menu->accel_group)
+ g_object_unref (menu->accel_group);
+ menu->accel_group = accel_group;
+ if (menu->accel_group)
+ g_object_ref (menu->accel_group);
+ _gtk_menu_refresh_accel_paths (menu, TRUE);
}
}
+GtkAccelGroup*
+gtk_menu_get_accel_group (GtkMenu *menu)
+{
+ g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
+
+ return menu->accel_group;
+}
+
+/**
+ * gtk_menu_set_accel_path
+ * @menu: a valid #GtkMenu
+ * @accel_path: a valid accelerator path
+ *
+ * Sets an accelerator path for this menu from which accelerator paths
+ * for its immediate children, its menu items, can be constructed.
+ * The main purpose of this function is to spare the programmer the
+ * inconvenience of having to call gtk_menu_item_set_accel_path() on
+ * each menu item that should support runtime user changable accelerators.
+ * Instead, by just calling gtk_menu_set_accel_path() on their parent,
+ * each menu item of this menu, that contains a label describing its purpose,
+ * automatically gets an accel path assigned. For example, a menu containing
+ * menu items "New" and "Exit", will, after
+ * <literal>gtk_menu_set_accel_path (menu, "<Gnumeric-Sheet>/File");</literal>
+ * has been called, assign its items the accel paths:
+ * <literal>"<Gnumeric-Sheet>/File/New"</literal> and <literal>"<Gnumeric-Sheet>/File/Exit"</literal>.
+ * Assigning accel paths to menu items then enables the user to change
+ * their accelerators at runtime. More details about accelerator paths
+ * and their default setups can be found at gtk_accel_map_add_entry().
+ */
+void
+gtk_menu_set_accel_path (GtkMenu *menu,
+ const gchar *accel_path)
+{
+ g_return_if_fail (GTK_IS_MENU (menu));
+ if (accel_path)
+ g_return_if_fail (accel_path[0] == '<' && strchr (accel_path, '/')); /* simplistic check */
+
+ g_free (menu->accel_path);
+ menu->accel_path = g_strdup (accel_path);
+ if (menu->accel_path)
+ _gtk_menu_refresh_accel_paths (menu, FALSE);
+}
+
+typedef struct {
+ GtkMenu *menu;
+ gboolean group_changed;
+} AccelPropagation;
static void
-gtk_menu_show (GtkWidget *widget)
+refresh_accel_paths_foreach (GtkWidget *widget,
+ gpointer data)
{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MENU (widget));
+ AccelPropagation *prop = data;
- GTK_WIDGET_SET_FLAGS (widget, GTK_VISIBLE);
- gtk_widget_map (widget);
+ if (GTK_IS_MENU_ITEM (widget)) /* should always be true */
+ _gtk_menu_item_refresh_accel_path (GTK_MENU_ITEM (widget),
+ prop->menu->accel_path,
+ prop->menu->accel_group,
+ prop->group_changed);
}
static void
-gtk_menu_map (GtkWidget *widget)
+_gtk_menu_refresh_accel_paths (GtkMenu *menu,
+ gboolean group_changed)
{
- GtkMenu *menu;
- GtkMenuShell *menu_shell;
- GtkWidget *child;
- GList *children;
- GtkAllocation allocation;
- gint x, y;
+ g_return_if_fail (GTK_IS_MENU (menu));
+
+ if (menu->accel_path && menu->accel_group)
+ {
+ AccelPropagation prop;
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MENU (widget));
+ prop.menu = menu;
+ prop.group_changed = group_changed;
+ gtk_container_foreach (GTK_CONTAINER (menu),
+ refresh_accel_paths_foreach,
+ &prop);
+ }
+}
- menu = GTK_MENU (widget);
- menu_shell = GTK_MENU_SHELL (widget);
- GTK_WIDGET_SET_FLAGS (menu_shell, GTK_MAPPED);
+void
+gtk_menu_reposition (GtkMenu *menu)
+{
+ g_return_if_fail (GTK_IS_MENU (menu));
+
+ if (GTK_WIDGET_DRAWABLE (menu) && !menu->torn_off)
+ gtk_menu_position (menu);
+}
+
+static void
+gtk_menu_scrollbar_changed (GtkAdjustment *adjustment,
+ GtkMenu *menu)
+{
+ g_return_if_fail (GTK_IS_MENU (menu));
- gtk_widget_size_request (widget, &widget->requisition);
+ if (adjustment->value != menu->scroll_offset)
+ gtk_menu_scroll_to (menu, adjustment->value);
+}
+
+static void
+gtk_menu_set_tearoff_hints (GtkMenu *menu,
+ gint width)
+{
+ GdkGeometry geometry_hints;
+
+ if (!menu->tearoff_window)
+ return;
- if (menu_shell->menu_flag)
+ if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
{
- menu_shell->menu_flag = FALSE;
+ gtk_widget_size_request (menu->tearoff_scrollbar, NULL);
+ width += menu->tearoff_scrollbar->requisition.width;
+ }
+
+ geometry_hints.min_width = width;
+ geometry_hints.max_width = width;
+
+ geometry_hints.min_height = 0;
+ geometry_hints.max_height = GTK_WIDGET (menu)->requisition.height;
+
+ gtk_window_set_geometry_hints (GTK_WINDOW (menu->tearoff_window),
+ NULL,
+ &geometry_hints,
+ GDK_HINT_MAX_SIZE|GDK_HINT_MIN_SIZE);
+}
- allocation.x = widget->allocation.x;
- allocation.y = widget->allocation.y;
- allocation.width = widget->requisition.width;
- allocation.height = widget->requisition.height;
+static void
+gtk_menu_update_title (GtkMenu *menu)
+{
+ if (menu->tearoff_window)
+ {
+ const gchar *title;
+ GtkWidget *attach_widget;
- gtk_widget_size_allocate (widget, &allocation);
+ title = gtk_menu_get_title (menu);
+ if (!title)
+ {
+ attach_widget = gtk_menu_get_attach_widget (menu);
+ if (GTK_IS_MENU_ITEM (attach_widget))
+ {
+ GtkWidget *child = GTK_BIN (attach_widget)->child;
+ if (GTK_IS_LABEL (child))
+ title = gtk_label_get_text (GTK_LABEL (child));
+ }
+ }
+
+ if (title)
+ gtk_window_set_title (GTK_WINDOW (menu->tearoff_window), title);
}
+}
- gdk_window_get_pointer (NULL, &x, &y, NULL);
+void
+gtk_menu_set_tearoff_state (GtkMenu *menu,
+ gboolean torn_off)
+{
+ gint width, height;
+
+ g_return_if_fail (GTK_IS_MENU (menu));
- if (menu->position_func)
- (* menu->position_func) (menu, &x, &y, menu->position_func_data);
- else
+ if (menu->torn_off != torn_off)
{
- gint screen_width;
- gint screen_height;
+ menu->torn_off = torn_off;
+ menu->tearoff_active = torn_off;
+
+ if (menu->torn_off)
+ {
+ if (GTK_WIDGET_VISIBLE (menu))
+ gtk_menu_popdown (menu);
+
+ if (!menu->tearoff_window)
+ {
+ menu->tearoff_window = gtk_widget_new (GTK_TYPE_WINDOW,
+ "type", GTK_WINDOW_TOPLEVEL,
+ "screen", gtk_widget_get_screen (menu->toplevel),
+ "app_paintable", TRUE,
+ NULL);
+
+ gtk_window_set_type_hint (GTK_WINDOW (menu->tearoff_window),
+ GDK_WINDOW_TYPE_HINT_MENU);
+ gtk_window_set_mnemonic_modifier (GTK_WINDOW (menu->tearoff_window), 0);
+ g_signal_connect (menu->tearoff_window, "destroy",
+ G_CALLBACK (gtk_widget_destroyed), &menu->tearoff_window);
+ g_signal_connect (menu->tearoff_window, "event",
+ G_CALLBACK (gtk_menu_window_event), menu);
+
+ gtk_menu_update_title (menu);
+
+ gtk_widget_realize (menu->tearoff_window);
+
+ menu->tearoff_hbox = gtk_hbox_new (FALSE, FALSE);
+ gtk_container_add (GTK_CONTAINER (menu->tearoff_window), menu->tearoff_hbox);
+
+ gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
+ menu->tearoff_adjustment =
+ GTK_ADJUSTMENT (gtk_adjustment_new (0,
+ 0,
+ GTK_WIDGET (menu)->requisition.height,
+ MENU_SCROLL_STEP2,
+ height/2,
+ height));
+ g_object_connect (menu->tearoff_adjustment,
+ "signal::value_changed", gtk_menu_scrollbar_changed, menu,
+ NULL);
+ menu->tearoff_scrollbar = gtk_vscrollbar_new (menu->tearoff_adjustment);
+
+ gtk_box_pack_end (GTK_BOX (menu->tearoff_hbox),
+ menu->tearoff_scrollbar,
+ FALSE, FALSE, 0);
+
+ if (menu->tearoff_adjustment->upper > height)
+ gtk_widget_show (menu->tearoff_scrollbar);
+
+ gtk_widget_show (menu->tearoff_hbox);
+ }
+
+ gtk_menu_reparent (menu, menu->tearoff_hbox, FALSE);
+
+ gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, NULL);
- screen_width = gdk_screen_width ();
- screen_height = gdk_screen_height ();
+ /* Update menu->requisition
+ */
+ gtk_widget_size_request (GTK_WIDGET (menu), NULL);
+
+ gtk_menu_set_tearoff_hints (menu, width);
+
+ gtk_widget_realize (menu->tearoff_window);
+ gtk_menu_position (menu);
+
+ gtk_widget_show (GTK_WIDGET (menu));
+ gtk_widget_show (menu->tearoff_window);
- x -= 2;
- y -= 2;
+ gtk_menu_scroll_to (menu, 0);
- if ((x + widget->requisition.width) > screen_width)
- x -= ((x + widget->requisition.width) - screen_width);
- if (x < 0)
- x = 0;
- if ((y + widget->requisition.height) > screen_height)
- y -= ((y + widget->requisition.height) - screen_height);
- if (y < 0)
- y = 0;
+ }
+ else
+ {
+ gtk_widget_hide (menu->tearoff_window);
+ gtk_menu_reparent (menu, menu->toplevel, FALSE);
+ gtk_widget_destroy (menu->tearoff_window);
+
+ menu->tearoff_window = NULL;
+ menu->tearoff_hbox = NULL;
+ menu->tearoff_scrollbar = NULL;
+ menu->tearoff_adjustment = NULL;
+ }
}
+}
+
+/**
+ * gtk_menu_get_tearoff_state:
+ * @menu: a #GtkMenu
+ *
+ * Returns whether the menu is torn off. See
+ * gtk_menu_set_tearoff_state ().
+ *
+ * Return value: %TRUE if the menu is currently torn off.
+ **/
+gboolean
+gtk_menu_get_tearoff_state (GtkMenu *menu)
+{
+ g_return_val_if_fail (GTK_IS_MENU (menu), FALSE);
- gdk_window_move_resize (widget->window, x, y,
- widget->requisition.width,
- widget->requisition.height);
+ return menu->torn_off;
+}
- children = menu_shell->children;
- while (children)
- {
- child = children->data;
- children = children->next;
+/**
+ * gtk_menu_set_title:
+ * @menu: a #GtkMenu
+ * @title: a string containing the title for the menu.
+ *
+ * Sets the title string for the menu. The title is displayed when the menu
+ * is shown as a tearoff menu.
+ **/
+void
+gtk_menu_set_title (GtkMenu *menu,
+ const gchar *title)
+{
+ g_return_if_fail (GTK_IS_MENU (menu));
- if (GTK_WIDGET_VISIBLE (child) && !GTK_WIDGET_MAPPED (child))
- gtk_widget_map (child);
- }
+ if (title)
+ g_object_set_data_full (G_OBJECT (menu), "gtk-menu-title",
+ g_strdup (title), (GtkDestroyNotify) g_free);
+ else
+ g_object_set_data (G_OBJECT (menu), "gtk-menu-title", NULL);
+
+ gtk_menu_update_title (menu);
+ g_object_notify (G_OBJECT (menu), "tearoff_title");
+}
+
+/**
+ * gtk_menu_get_title:
+ * @menu: a #GtkMenu
+ *
+ * Returns the title of the menu. See gtk_menu_set_title().
+ *
+ * Return value: the title of the menu, or %NULL if the menu has no
+ * title set on it. This string is owned by the widget and should
+ * not be modified or freed.
+ **/
+G_CONST_RETURN gchar *
+gtk_menu_get_title (GtkMenu *menu)
+{
+ g_return_val_if_fail (GTK_IS_MENU (menu), NULL);
- gdk_window_show (widget->window);
+ return g_object_get_data (G_OBJECT (menu), "gtk-menu-title");
}
-static void
-gtk_menu_unmap (GtkWidget *widget)
+void
+gtk_menu_reorder_child (GtkMenu *menu,
+ GtkWidget *child,
+ gint position)
{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MENU (widget));
+ GtkMenuShell *menu_shell;
+ g_return_if_fail (GTK_IS_MENU (menu));
+ g_return_if_fail (GTK_IS_MENU_ITEM (child));
+ menu_shell = GTK_MENU_SHELL (menu);
+ if (g_list_find (menu_shell->children, child))
+ {
+ menu_shell->children = g_list_remove (menu_shell->children, child);
+ menu_shell->children = g_list_insert (menu_shell->children, child, position);
+ if (GTK_WIDGET_VISIBLE (menu_shell))
+ gtk_widget_queue_resize (GTK_WIDGET (menu_shell));
+ }
+}
- GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
- gdk_window_hide (widget->window);
+static void
+gtk_menu_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ GtkMenu *menu = GTK_MENU (widget);
+
+ gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+ }
}
static void
{
GdkWindowAttr attributes;
gint attributes_mask;
+ gint border_width;
+ GtkMenu *menu;
+ GtkWidget *child;
+ GList *children;
- g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU (widget));
+ menu = GTK_MENU (widget);
+
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
-
+
+ attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
- attributes.window_type = GDK_WINDOW_TEMP;
+
attributes.event_mask = gtk_widget_get_events (widget);
- attributes.event_mask |= (GDK_EXPOSURE_MASK |
- GDK_KEY_PRESS_MASK |
- GDK_STRUCTURE_MASK);
-
+ attributes.event_mask |= (GDK_EXPOSURE_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 (NULL, &attributes, attributes_mask);
+ widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
+
+ border_width = GTK_CONTAINER (widget)->border_width;
+
+ attributes.x = border_width + widget->style->xthickness;
+ attributes.y = border_width + widget->style->ythickness;
+ attributes.width = MAX (1, widget->allocation.width - attributes.x * 2);
+ attributes.height = MAX (1, widget->allocation.height - attributes.y * 2);
+
+ if (menu->upper_arrow_visible)
+ {
+ attributes.y += MENU_SCROLL_ARROW_HEIGHT;
+ attributes.height -= MENU_SCROLL_ARROW_HEIGHT;
+ }
+ if (menu->lower_arrow_visible)
+ attributes.height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ menu->view_window = gdk_window_new (widget->window, &attributes, attributes_mask);
+ gdk_window_set_user_data (menu->view_window, menu);
+
+ attributes.x = 0;
+ attributes.y = 0;
+ attributes.height = MAX (1, widget->requisition.height - (border_width + widget->style->ythickness) * 2);
+
+ menu->bin_window = gdk_window_new (menu->view_window, &attributes, attributes_mask);
+ gdk_window_set_user_data (menu->bin_window, menu);
+ children = GTK_MENU_SHELL (menu)->children;
+ while (children)
+ {
+ child = children->data;
+ children = children->next;
+
+ gtk_widget_set_parent_window (child, menu->bin_window);
+ }
+
widget->style = gtk_style_attach (widget->style, widget->window);
+ gtk_style_set_background (widget->style, menu->bin_window, GTK_STATE_NORMAL);
+ gtk_style_set_background (widget->style, menu->view_window, GTK_STATE_NORMAL);
gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+
+ if (GTK_MENU_SHELL (widget)->active_menu_item)
+ gtk_menu_scroll_item_visible (GTK_MENU_SHELL (widget),
+ GTK_MENU_SHELL (widget)->active_menu_item);
+
+ gdk_window_show (menu->bin_window);
+ gdk_window_show (menu->view_window);
+}
+
+static gboolean
+gtk_menu_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+{
+ /*
+ * A menu or its menu items cannot have focus
+ */
+ return FALSE;
+}
+
+/* See notes in gtk_menu_popup() for information about the "grab transfer window"
+ */
+static GdkWindow *
+menu_grab_transfer_window_get (GtkMenu *menu)
+{
+ GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
+ if (!window)
+ {
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ attributes.x = -100;
+ attributes.y = -100;
+ attributes.width = 10;
+ attributes.height = 10;
+ attributes.window_type = GDK_WINDOW_TEMP;
+ attributes.wclass = GDK_INPUT_ONLY;
+ attributes.override_redirect = TRUE;
+ attributes.event_mask = 0;
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
+
+ window = gdk_window_new (gtk_widget_get_root_window (GTK_WIDGET (menu)),
+ &attributes, attributes_mask);
+ gdk_window_set_user_data (window, menu);
+
+ gdk_window_show (window);
+
+ g_object_set_data (G_OBJECT (menu), "gtk-menu-transfer-window", window);
+ }
+
+ return window;
+}
+
+static void
+menu_grab_transfer_window_destroy (GtkMenu *menu)
+{
+ GdkWindow *window = g_object_get_data (G_OBJECT (menu), "gtk-menu-transfer-window");
+ if (window)
+ {
+ gdk_window_set_user_data (window, NULL);
+ gdk_window_destroy (window);
+ g_object_set_data (G_OBJECT (menu), "gtk-menu-transfer-window", NULL);
+ }
+}
+
+static void
+gtk_menu_unrealize (GtkWidget *widget)
+{
+ GtkMenu *menu;
+
+ g_return_if_fail (GTK_IS_MENU (widget));
+
+ menu = GTK_MENU (widget);
+
+ menu_grab_transfer_window_destroy (menu);
+
+ gdk_window_set_user_data (menu->view_window, NULL);
+ gdk_window_destroy (menu->view_window);
+ menu->view_window = NULL;
+
+ gdk_window_set_user_data (menu->bin_window, NULL);
+ gdk_window_destroy (menu->bin_window);
+ menu->bin_window = NULL;
+
+ (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
GtkMenuShell *menu_shell;
GtkWidget *child;
GList *children;
- gint max_accelerator_size;
- gint max_toggle_size;
-
- g_return_if_fail (widget != NULL);
+ guint max_toggle_size;
+ guint max_accel_width;
+ GtkRequisition child_requisition;
+
g_return_if_fail (GTK_IS_MENU (widget));
g_return_if_fail (requisition != NULL);
-
+
menu = GTK_MENU (widget);
menu_shell = GTK_MENU_SHELL (widget);
-
+
requisition->width = 0;
requisition->height = 0;
-
- max_accelerator_size = 0;
+
max_toggle_size = 0;
-
+ max_accel_width = 0;
+
children = menu_shell->children;
while (children)
{
child = children->data;
children = children->next;
-
+
if (GTK_WIDGET_VISIBLE (child))
{
+ gint toggle_size;
+
+ /* It's important to size_request the child
+ * before doing the toggle size request, in
+ * case the toggle size request depends on the size
+ * request of a child of the child (e.g. for ImageMenuItem)
+ */
+
GTK_MENU_ITEM (child)->show_submenu_indicator = TRUE;
- gtk_widget_size_request (child, &child->requisition);
-
- requisition->width = MAX (requisition->width, child->requisition.width);
- requisition->height += child->requisition.height;
+ gtk_widget_size_request (child, &child_requisition);
+
+ requisition->width = MAX (requisition->width, child_requisition.width);
+ requisition->height += child_requisition.height;
- max_accelerator_size = MAX (max_accelerator_size, GTK_MENU_ITEM (child)->accelerator_size);
- max_toggle_size = MAX (max_toggle_size, MENU_ITEM_CLASS (child)->toggle_size);
+ gtk_menu_item_toggle_size_request (GTK_MENU_ITEM (child), &toggle_size);
+ max_toggle_size = MAX (max_toggle_size, toggle_size);
+ max_accel_width = MAX (max_accel_width, GTK_MENU_ITEM (child)->accelerator_width);
}
}
-
- requisition->width += max_toggle_size + max_accelerator_size;
+
+ requisition->width += max_toggle_size + max_accel_width;
requisition->width += (GTK_CONTAINER (menu)->border_width +
- widget->style->klass->xthickness) * 2;
+ widget->style->xthickness) * 2;
requisition->height += (GTK_CONTAINER (menu)->border_width +
- widget->style->klass->ythickness) * 2;
-
- children = menu_shell->children;
- while (children)
- {
- child = children->data;
- children = children->next;
+ widget->style->ythickness) * 2;
+
+ menu->toggle_size = max_toggle_size;
- GTK_MENU_ITEM (child)->accelerator_size = max_accelerator_size;
- GTK_MENU_ITEM (child)->toggle_size = max_toggle_size;
- }
+ /* Don't resize the tearoff if it is not active, because it won't redraw (it is only a background pixmap).
+ */
+ if (menu->tearoff_active)
+ gtk_menu_set_tearoff_hints (menu, requisition->width);
}
static void
GtkWidget *child;
GtkAllocation child_allocation;
GList *children;
+ gint x, y;
+ gint width, height;
- g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU (widget));
g_return_if_fail (allocation != NULL);
-
+
menu = GTK_MENU (widget);
menu_shell = GTK_MENU_SHELL (widget);
widget->allocation = *allocation;
- if (menu_shell->children)
+ x = GTK_CONTAINER (menu)->border_width + widget->style->xthickness;
+ y = GTK_CONTAINER (menu)->border_width + widget->style->ythickness;
+
+ width = MAX (1, allocation->width - x * 2);
+ height = MAX (1, allocation->height - y * 2);
+
+ if (menu_shell->active)
+ gtk_menu_scroll_to (menu, menu->scroll_offset);
+
+ if (menu->upper_arrow_visible && !menu->tearoff_active)
+ {
+ y += MENU_SCROLL_ARROW_HEIGHT;
+ height -= MENU_SCROLL_ARROW_HEIGHT;
+ }
+
+ if (menu->lower_arrow_visible && !menu->tearoff_active)
+ height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ if (GTK_WIDGET_REALIZED (widget))
{
- child_allocation.x = (GTK_CONTAINER (menu)->border_width +
- widget->style->klass->xthickness);
- child_allocation.y = (GTK_CONTAINER (menu)->border_width +
- widget->style->klass->ythickness);
- child_allocation.width = allocation->width - child_allocation.x * 2;
+ gdk_window_move_resize (widget->window,
+ allocation->x, allocation->y,
+ allocation->width, allocation->height);
+
+ gdk_window_move_resize (menu->view_window,
+ x,
+ y,
+ width,
+ height);
+ }
+ if (menu_shell->children)
+ {
+ child_allocation.x = 0;
+ child_allocation.y = 0;
+ child_allocation.width = width;
+
children = menu_shell->children;
while (children)
{
child = children->data;
children = children->next;
-
+
if (GTK_WIDGET_VISIBLE (child))
{
- child_allocation.height = child->requisition.height;
+ GtkRequisition child_requisition;
+ gtk_widget_get_child_requisition (child, &child_requisition);
+
+ child_allocation.height = child_requisition.height;
+ gtk_menu_item_toggle_size_allocate (GTK_MENU_ITEM (child),
+ menu->toggle_size);
gtk_widget_size_allocate (child, &child_allocation);
-
+ gtk_widget_queue_draw (child);
+
child_allocation.y += child_allocation.height;
}
}
- }
-}
+
+ /* Resize the item window */
+ if (GTK_WIDGET_REALIZED (widget))
+ {
+ gdk_window_resize (menu->bin_window,
+ child_allocation.width,
+ child_allocation.y);
+ }
-static void
-gtk_menu_paint (GtkWidget *widget)
-{
- g_return_if_fail (widget != NULL);
- g_return_if_fail (GTK_IS_MENU (widget));
- if (GTK_WIDGET_DRAWABLE (widget))
- {
- gtk_draw_shadow (widget->style,
- widget->window,
- GTK_STATE_NORMAL,
- GTK_SHADOW_OUT,
- 0, 0,
- widget->allocation.width,
- widget->allocation.height);
+ if (menu->tearoff_active)
+ {
+ if (allocation->height >= widget->requisition.height)
+ {
+ if (GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
+ {
+ gtk_widget_hide (menu->tearoff_scrollbar);
+ gtk_menu_set_tearoff_hints (menu, allocation->width);
+
+ gtk_menu_scroll_to (menu, 0);
+ }
+ }
+ else
+ {
+ menu->tearoff_adjustment->upper = widget->requisition.height;
+ menu->tearoff_adjustment->page_size = allocation->height;
+
+ if (menu->tearoff_adjustment->value + menu->tearoff_adjustment->page_size >
+ menu->tearoff_adjustment->upper)
+ {
+ gint value;
+ value = menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size;
+ if (value < 0)
+ value = 0;
+ gtk_menu_scroll_to (menu, value);
+ }
+
+ gtk_adjustment_changed (menu->tearoff_adjustment);
+
+ if (!GTK_WIDGET_VISIBLE (menu->tearoff_scrollbar))
+ {
+ gtk_widget_show (menu->tearoff_scrollbar);
+ gtk_menu_set_tearoff_hints (menu, allocation->width);
+ }
+ }
+ }
}
}
static void
-gtk_menu_draw (GtkWidget *widget,
- GdkRectangle *area)
+gtk_menu_paint (GtkWidget *widget,
+ GdkEventExpose *event)
{
- GtkMenuShell *menu_shell;
- GtkWidget *child;
- GdkRectangle child_area;
- GList *children;
-
- g_return_if_fail (widget != NULL);
+ GtkMenu *menu;
+ gint width, height;
+ gint border_x, border_y;
+
g_return_if_fail (GTK_IS_MENU (widget));
- g_return_if_fail (area != NULL);
- if (GTK_WIDGET_DRAWABLE (widget))
- {
- gtk_menu_paint (widget);
-
- menu_shell = GTK_MENU_SHELL (widget);
+ menu = GTK_MENU (widget);
+
+ border_x = GTK_CONTAINER (widget)->border_width + widget->style->xthickness;
+ border_y = GTK_CONTAINER (widget)->border_width + widget->style->ythickness;
+ gdk_drawable_get_size (widget->window, &width, &height);
- children = menu_shell->children;
- while (children)
+ if (event->window == widget->window)
+ {
+ gtk_paint_box (widget->style,
+ widget->window,
+ GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ NULL, widget, "menu",
+ 0, 0, -1, -1);
+ if (menu->upper_arrow_visible && !menu->tearoff_active)
{
- child = children->data;
- children = children->next;
-
- if (gtk_widget_intersect (child, area, &child_area))
- gtk_widget_draw (child, &child_area);
+ gtk_paint_box (widget->style,
+ widget->window,
+ menu->upper_arrow_prelight ?
+ GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ NULL, widget, "menu",
+ border_x,
+ border_y,
+ width - 2*border_x,
+ MENU_SCROLL_ARROW_HEIGHT);
+
+ gtk_paint_arrow (widget->style,
+ widget->window,
+ menu->upper_arrow_prelight ?
+ GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ NULL, widget, "menu",
+ GTK_ARROW_UP,
+ TRUE,
+ width / 2 - MENU_SCROLL_ARROW_HEIGHT / 2 + 1,
+ 2 * border_y + 1,
+ MENU_SCROLL_ARROW_HEIGHT - 2 * border_y - 2,
+ MENU_SCROLL_ARROW_HEIGHT - 2 * border_y - 2);
+ }
+
+ if (menu->lower_arrow_visible && !menu->tearoff_active)
+ {
+ gtk_paint_box (widget->style,
+ widget->window,
+ menu->lower_arrow_prelight ?
+ GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ NULL, widget, "menu",
+ border_x,
+ height - border_y - MENU_SCROLL_ARROW_HEIGHT + 1,
+ width - 2*border_x,
+ MENU_SCROLL_ARROW_HEIGHT);
+
+ gtk_paint_arrow (widget->style,
+ widget->window,
+ menu->lower_arrow_prelight ?
+ GTK_STATE_PRELIGHT : GTK_STATE_NORMAL,
+ GTK_SHADOW_OUT,
+ NULL, widget, "menu",
+ GTK_ARROW_DOWN,
+ TRUE,
+ width / 2 - MENU_SCROLL_ARROW_HEIGHT / 2 + 1,
+ height - MENU_SCROLL_ARROW_HEIGHT + 1,
+ MENU_SCROLL_ARROW_HEIGHT - 2 * border_y - 2,
+ MENU_SCROLL_ARROW_HEIGHT - 2 * border_y - 2);
}
}
}
-static gint
-gtk_menu_expose (GtkWidget *widget,
+static gboolean
+gtk_menu_expose (GtkWidget *widget,
GdkEventExpose *event)
{
- GtkMenuShell *menu_shell;
- GtkWidget *child;
- GdkEventExpose child_event;
- GList *children;
-
- g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
if (GTK_WIDGET_DRAWABLE (widget))
{
- gtk_menu_paint (widget);
-
- menu_shell = GTK_MENU_SHELL (widget);
- child_event = *event;
-
- children = menu_shell->children;
- while (children)
- {
- child = children->data;
- children = children->next;
-
- if (GTK_WIDGET_NO_WINDOW (child) &&
- gtk_widget_intersect (child, &event->area, &child_event.area))
- gtk_widget_event (child, (GdkEvent*) &child_event);
- }
+ gtk_menu_paint (widget, event);
+
+ (* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
}
-
+
return FALSE;
}
-static gint
-gtk_menu_configure (GtkWidget *widget,
- GdkEventConfigure *event)
+static void
+gtk_menu_show (GtkWidget *widget)
{
- GtkAllocation allocation;
+ GtkMenu *menu = GTK_MENU (widget);
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
+ _gtk_menu_refresh_accel_paths (menu, FALSE);
- /* If the window was merely moved, do nothing */
- if ((widget->allocation.width == event->width) &&
- (widget->allocation.height == event->height))
- return FALSE;
+ GTK_WIDGET_CLASS (parent_class)->show (widget);
+}
- if (GTK_MENU_SHELL (widget)->menu_flag)
+static gboolean
+gtk_menu_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ /* Don't pop down the menu for releases over scroll arrows
+ */
+ if (GTK_IS_MENU (widget))
{
- GTK_MENU_SHELL (widget)->menu_flag = FALSE;
+ GtkMenu *menu = GTK_MENU (widget);
- allocation.x = 0;
- allocation.y = 0;
- allocation.width = event->width;
- allocation.height = event->height;
+ if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
+ return TRUE;
+ }
- gtk_widget_size_allocate (widget, &allocation);
+ return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
+}
+
+static gboolean
+gtk_menu_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ /* Don't pop down the menu for releases over scroll arrows
+ */
+ if (GTK_IS_MENU (widget))
+ {
+ GtkMenu *menu = GTK_MENU (widget);
+
+ if (menu->upper_arrow_prelight || menu->lower_arrow_prelight)
+ return TRUE;
}
- return FALSE;
+ return GTK_WIDGET_CLASS (parent_class)->button_release_event (widget, event);
}
-static gint
-gtk_menu_key_press (GtkWidget *widget,
+static gboolean
+gtk_menu_key_press (GtkWidget *widget,
GdkEventKey *event)
{
- GtkAllocation allocation;
- GtkAcceleratorTable *table;
- gchar *signame;
- int delete;
-
- g_return_val_if_fail (widget != NULL, FALSE);
+ GtkMenuShell *menu_shell;
+ GtkMenu *menu;
+ gboolean delete = FALSE;
+ gboolean can_change_accels;
+ gchar *accel = NULL;
+ guint accel_key, accel_mods;
+ GdkModifierType consumed_modifiers;
+ GdkDisplay *display;
+
g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
+
+ menu_shell = GTK_MENU_SHELL (widget);
+ menu = GTK_MENU (widget);
+
+ gtk_menu_stop_navigating_submenu (menu);
+
+ if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
+ return TRUE;
- delete = ((event->keyval == GDK_Delete) ||
- (event->keyval == GDK_BackSpace));
+ display = gtk_widget_get_display (widget);
+
+ g_object_get (gtk_widget_get_settings (widget),
+ "gtk-menu-bar-accel", &accel,
+ "gtk-can-change-accels", &can_change_accels,
+ NULL);
- if (delete || ((event->keyval >= 0x20) && (event->keyval <= 0xFF)))
+ if (accel)
{
- GtkMenuShell *menu_shell;
+ guint keyval = 0;
+ GdkModifierType mods = 0;
+ gboolean handled = FALSE;
+
+ gtk_accelerator_parse (accel, &keyval, &mods);
- menu_shell = GTK_MENU_SHELL (widget);
+ if (keyval == 0)
+ g_warning ("Failed to parse menu bar accelerator '%s'\n", accel);
- if (menu_shell->active_menu_item && GTK_BIN (menu_shell->active_menu_item)->child)
- {
- GtkMenuItem *menu_item;
+ /* FIXME this is wrong, needs to be in the global accel resolution
+ * thing, to properly consider i18n etc., but that probably requires
+ * AccelGroup changes etc.
+ */
+ if (event->keyval == keyval &&
+ (mods & event->state) == mods)
+ {
+ g_signal_emit_by_name (menu, "cancel", 0);
+ }
- menu_item = GTK_MENU_ITEM (menu_shell->active_menu_item);
-
- /* block resizes */
- gtk_container_block_resize (GTK_CONTAINER (widget));
+ g_free (accel);
- table = NULL;
- /* if the menu item currently has an accelerator then we'll
- * remove it before we do anything else.
- */
- if (menu_item->accelerator_signal)
- {
- signame = gtk_signal_name (menu_item->accelerator_signal);
- table = gtk_accelerator_table_find (GTK_OBJECT (widget),
- signame,
- menu_item->accelerator_key,
- menu_item->accelerator_mods);
- if (!table)
- table = GTK_MENU (widget)->accelerator_table;
- gtk_widget_remove_accelerator (GTK_WIDGET (menu_item),
- table, signame);
- }
+ if (handled)
+ return TRUE;
+ }
+
+ switch (event->keyval)
+ {
+ case GDK_Delete:
+ case GDK_KP_Delete:
+ case GDK_BackSpace:
+ delete = TRUE;
+ break;
+ default:
+ break;
+ }
+
+ /* Figure out what modifiers went into determining the key symbol */
+ gdk_keymap_translate_keyboard_state (gdk_keymap_get_for_display (display),
+ event->hardware_keycode, event->state, event->group,
+ NULL, NULL, NULL, &consumed_modifiers);
+
+ accel_key = gdk_keyval_to_lower (event->keyval);
+ accel_mods = event->state & gtk_accelerator_get_default_mod_mask () & ~consumed_modifiers;
+
+ /* If lowercasing affects the keysym, then we need to include SHIFT in the modifiers,
+ * We re-upper case when we match against the keyval, but display and save in caseless form.
+ */
+ if (accel_key != event->keyval)
+ accel_mods |= GDK_SHIFT_MASK;
+
+ /* Modify the accelerators */
+ if (can_change_accels &&
+ menu_shell->active_menu_item &&
+ GTK_BIN (menu_shell->active_menu_item)->child && /* no seperators */
+ GTK_MENU_ITEM (menu_shell->active_menu_item)->submenu == NULL && /* no submenus */
+ (delete || gtk_accelerator_valid (accel_key, accel_mods)))
+ {
+ GtkWidget *menu_item = menu_shell->active_menu_item;
+ gboolean locked, replace_accels = TRUE;
+ const gchar *path;
- if (!table)
- table = GTK_MENU (widget)->accelerator_table;
+ path = _gtk_widget_get_accel_path (menu_item, &locked);
+ if (!path || locked)
+ {
+ /* can't change accelerators on menu_items without paths
+ * (basically, those items are accelerator-locked).
+ */
+ /* g_print("item has no path or is locked, menu prefix: %s\n", menu->accel_path); */
+ gdk_display_beep (display);
+ }
+ else
+ {
+ gboolean changed;
- /* if we aren't simply deleting the accelerator, then we'll install
- * the new one now.
+ /* For the keys that act to delete the current setting, we delete
+ * the current setting if there is one, otherwise, we set the
+ * key as the accelerator.
*/
- if (!delete)
- gtk_widget_install_accelerator (GTK_WIDGET (menu_item),
- table, "activate",
- toupper (event->keyval),
- event->state);
-
- /* check and see if the menu has changed size. */
- gtk_widget_size_request (widget, &widget->requisition);
-
- allocation.x = widget->allocation.x;
- allocation.y = widget->allocation.y;
- allocation.width = widget->requisition.width;
- allocation.height = widget->requisition.height;
-
- if ((allocation.width == widget->allocation.width) &&
- (allocation.height == widget->allocation.height))
+ if (delete)
{
- gtk_widget_queue_draw (widget);
+ GtkAccelKey key;
+
+ if (gtk_accel_map_lookup_entry (path, &key) &&
+ (key.accel_key || key.accel_mods))
+ {
+ accel_key = 0;
+ accel_mods = 0;
+ }
}
- else
+ changed = gtk_accel_map_change_entry (path, accel_key, accel_mods, replace_accels);
+
+ if (!changed)
{
- gtk_widget_size_allocate (GTK_WIDGET (widget), &allocation);
- gtk_menu_map (widget);
+ /* we failed, probably because this key is in use and
+ * locked already
+ */
+ /* g_print("failed to change\n"); */
+ gdk_display_beep (display);
}
+ }
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gtk_menu_motion_notify (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ GtkWidget *menu_item;
+ GtkMenu *menu;
+ GtkMenuShell *menu_shell;
- /* unblock resizes */
- gtk_container_unblock_resize (GTK_CONTAINER (widget));
+ gboolean need_enter;
+
+ if (GTK_IS_MENU (widget))
+ gtk_menu_handle_scrolling (GTK_MENU (widget), TRUE);
+
+ /* We received the event for one of two reasons:
+ *
+ * a) We are the active menu, and did gtk_grab_add()
+ * b) The widget is a child of ours, and the event was propagated
+ *
+ * Since for computation of navigation regions, we want the menu which
+ * is the parent of the menu item, for a), we need to find that menu,
+ * which may be different from 'widget'.
+ */
+ menu_item = gtk_get_event_widget ((GdkEvent*) event);
+ if (!menu_item || !GTK_IS_MENU_ITEM (menu_item) ||
+ !_gtk_menu_item_is_selectable (menu_item) ||
+ !GTK_IS_MENU (menu_item->parent))
+ return FALSE;
+
+ menu_shell = GTK_MENU_SHELL (menu_item->parent);
+ menu = GTK_MENU (menu_shell);
+
+ need_enter = (menu->navigation_region != NULL || menu_shell->ignore_enter);
+
+ /* Check to see if we are within an active submenu's navigation region
+ */
+ if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
+ return TRUE;
+
+ if (need_enter)
+ {
+ /* The menu is now sensitive to enter events on its items, but
+ * was previously sensitive. So we fake an enter event.
+ */
+ gint width, height;
+
+ menu_shell->ignore_enter = FALSE;
+
+ gdk_drawable_get_size (event->window, &width, &height);
+ if (event->x >= 0 && event->x < width &&
+ event->y >= 0 && event->y < height)
+ {
+ GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
+ gboolean result;
+
+ send_event->crossing.window = g_object_ref (event->window);
+ send_event->crossing.time = event->time;
+ send_event->crossing.send_event = TRUE;
+ send_event->crossing.x_root = event->x_root;
+ send_event->crossing.y_root = event->y_root;
+ send_event->crossing.x = event->x;
+ send_event->crossing.y = event->y;
+
+ /* We send the event to 'widget', the currently active menu,
+ * instead of 'menu', the menu that the pointer is in. This
+ * will ensure that the event will be ignored unless the
+ * menuitem is a child of the active menu or some parent
+ * menu of the active menu.
+ */
+ result = gtk_widget_event (widget, send_event);
+ gdk_event_free (send_event);
+
+ return result;
}
}
return FALSE;
}
-static gint
-gtk_menu_need_resize (GtkContainer *container)
+static gboolean
+gtk_menu_scroll_timeout (gpointer data)
{
- GtkAllocation allocation;
+ GtkMenu *menu;
+ GtkWidget *widget;
+ gint offset;
+ gint view_width, view_height;
+
+ GDK_THREADS_ENTER ();
+
+ menu = GTK_MENU (data);
+ widget = GTK_WIDGET (menu);
+
+ offset = menu->scroll_offset + menu->scroll_step;
+
+ /* If we scroll upward and the non-visible top part
+ * is smaller than the scroll arrow it would be
+ * pretty stupid to show the arrow and taking more
+ * screen space than just scrolling to the top.
+ */
+ if ((menu->scroll_step < 0) && (offset < MENU_SCROLL_ARROW_HEIGHT))
+ offset = 0;
- g_return_val_if_fail (container != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_MENU (container), FALSE);
+ /* Don't scroll over the top if we weren't before: */
+ if ((menu->scroll_offset >= 0) && (offset < 0))
+ offset = 0;
+
+ gdk_drawable_get_size (widget->window, &view_width, &view_height);
+
+ /* Don't scroll past the bottom if we weren't before: */
+ if (menu->scroll_offset > 0)
+ view_height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ if ((menu->scroll_offset + view_height <= widget->requisition.height) &&
+ (offset + view_height > widget->requisition.height))
+ offset = widget->requisition.height - view_height;
+
+ gtk_menu_scroll_to (menu, offset);
+
+ GDK_THREADS_LEAVE ();
+
+ return TRUE;
+}
- if (GTK_WIDGET_VISIBLE (container))
+static void
+gtk_menu_handle_scrolling (GtkMenu *menu, gboolean enter)
+{
+ GtkMenuShell *menu_shell;
+ gint width, height;
+ gint x, y;
+ gint border;
+ GdkRectangle rect;
+ gboolean in_arrow;
+ gboolean scroll_fast = FALSE;
+
+ menu_shell = GTK_MENU_SHELL (menu);
+
+ gdk_window_get_pointer (GTK_WIDGET (menu)->window, &x, &y, NULL);
+ gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
+
+ border = GTK_CONTAINER (menu)->border_width + GTK_WIDGET (menu)->style->ythickness;
+
+ if (menu->upper_arrow_visible && !menu->tearoff_active)
+ {
+ rect.x = 0;
+ rect.y = 0;
+ rect.width = width;
+ rect.height = MENU_SCROLL_ARROW_HEIGHT + border;
+
+ in_arrow = FALSE;
+ if ((x >= rect.x) && (x < rect.x + rect.width) &&
+ (y >= rect.y) && (y < rect.y + rect.height))
+ {
+ in_arrow = TRUE;
+ scroll_fast = (y < rect.y + MENU_SCROLL_FAST_ZONE);
+ }
+
+ if (enter && in_arrow &&
+ (!menu->upper_arrow_prelight || menu->scroll_fast != scroll_fast))
+ {
+ menu->upper_arrow_prelight = TRUE;
+ menu->scroll_fast = scroll_fast;
+ gdk_window_invalidate_rect (GTK_WIDGET (menu)->window, &rect, FALSE);
+
+ /* Deselect the active item so that any submenus are poped down */
+ gtk_menu_shell_deselect (menu_shell);
+
+ gtk_menu_remove_scroll_timeout (menu);
+ menu->scroll_step = (scroll_fast) ? -MENU_SCROLL_STEP2 : -MENU_SCROLL_STEP1;
+ menu->timeout_id = g_timeout_add ((scroll_fast) ? MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
+ gtk_menu_scroll_timeout,
+ menu);
+ }
+ else if (!enter && !in_arrow && menu->upper_arrow_prelight)
+ {
+ gdk_window_invalidate_rect (GTK_WIDGET (menu)->window, &rect, FALSE);
+
+ gtk_menu_stop_scrolling (menu);
+ }
+ }
+
+ if (menu->lower_arrow_visible && !menu->tearoff_active)
{
- GTK_MENU_SHELL (container)->menu_flag = FALSE;
+ rect.x = 0;
+ rect.y = height - border - MENU_SCROLL_ARROW_HEIGHT;
+ rect.width = width;
+ rect.height = MENU_SCROLL_ARROW_HEIGHT + border;
+
+ in_arrow = FALSE;
+ if ((x >= rect.x) && (x < rect.x + rect.width) &&
+ (y >= rect.y) && (y < rect.y + rect.height))
+ {
+ in_arrow = TRUE;
+ scroll_fast = (y > rect.y + rect.height - MENU_SCROLL_FAST_ZONE);
+ }
- gtk_widget_size_request (GTK_WIDGET (container),
- >K_WIDGET (container)->requisition);
+ if (enter && in_arrow &&
+ (!menu->lower_arrow_prelight || menu->scroll_fast != scroll_fast))
+ {
+ menu->lower_arrow_prelight = TRUE;
+ menu->scroll_fast = scroll_fast;
+ gdk_window_invalidate_rect (GTK_WIDGET (menu)->window, &rect, FALSE);
+
+ /* Deselect the active item so that any submenus are poped down */
+ gtk_menu_shell_deselect (menu_shell);
+
+ gtk_menu_remove_scroll_timeout (menu);
+ menu->scroll_step = (scroll_fast) ? MENU_SCROLL_STEP2 : MENU_SCROLL_STEP1;
+ menu->timeout_id = g_timeout_add ((scroll_fast) ? MENU_SCROLL_TIMEOUT2 : MENU_SCROLL_TIMEOUT1,
+ gtk_menu_scroll_timeout,
+ menu);
+ }
+ else if (!enter && !in_arrow && menu->lower_arrow_prelight)
+ {
+ gdk_window_invalidate_rect (GTK_WIDGET (menu)->window, &rect, FALSE);
+
+ gtk_menu_stop_scrolling (menu);
+ }
+ }
+}
- allocation.x = GTK_WIDGET (container)->allocation.x;
- allocation.y = GTK_WIDGET (container)->allocation.y;
- allocation.width = GTK_WIDGET (container)->requisition.width;
- allocation.height = GTK_WIDGET (container)->requisition.height;
+static gboolean
+gtk_menu_enter_notify (GtkWidget *widget,
+ GdkEventCrossing *event)
+{
+ GtkWidget *menu_item;
+
+ if (widget && GTK_IS_MENU (widget))
+ {
+ GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
- gtk_widget_size_allocate (GTK_WIDGET (container), &allocation);
+ if (!menu_shell->ignore_enter)
+ gtk_menu_handle_scrolling (GTK_MENU (widget), TRUE);
}
- else
+
+ /* If this is a faked enter (see gtk_menu_motion_notify), 'widget'
+ * will not correspond to the event widget's parent. Check to see
+ * if we are in the parent's navigation region.
+ */
+ menu_item = gtk_get_event_widget ((GdkEvent*) event);
+ if (menu_item && GTK_IS_MENU_ITEM (menu_item) && GTK_IS_MENU (menu_item->parent) &&
+ gtk_menu_navigating_submenu (GTK_MENU (menu_item->parent), event->x_root, event->y_root))
+ return TRUE;
+
+ return GTK_WIDGET_CLASS (parent_class)->enter_notify_event (widget, event);
+}
+
+static gboolean
+gtk_menu_leave_notify (GtkWidget *widget,
+ GdkEventCrossing *event)
+{
+ GtkMenuShell *menu_shell;
+ GtkMenu *menu;
+ GtkMenuItem *menu_item;
+ GtkWidget *event_widget;
+
+ menu = GTK_MENU (widget);
+ menu_shell = GTK_MENU_SHELL (widget);
+
+ if (gtk_menu_navigating_submenu (menu, event->x_root, event->y_root))
+ return TRUE;
+
+ gtk_menu_handle_scrolling (menu, FALSE);
+
+ 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);
+
+ /* Here we check to see if we're leaving an active menu item with a submenu,
+ * in which case we enter submenu navigation mode.
+ */
+ if (menu_shell->active_menu_item != NULL
+ && menu_item->submenu != NULL
+ && menu_item->submenu_placement == GTK_LEFT_RIGHT)
{
- GTK_MENU_SHELL (container)->menu_flag = TRUE;
+ if (GTK_MENU_SHELL (menu_item->submenu)->active)
+ {
+ gtk_menu_set_submenu_navigation_region (menu, menu_item, event);
+ return TRUE;
+ }
}
+
+ return GTK_WIDGET_CLASS (parent_class)->leave_notify_event (widget, event);
+}
+static void
+gtk_menu_stop_navigating_submenu (GtkMenu *menu)
+{
+ if (menu->navigation_region)
+ {
+ gdk_region_destroy (menu->navigation_region);
+ menu->navigation_region = NULL;
+ }
+
+ if (menu->navigation_timeout)
+ {
+ g_source_remove (menu->navigation_timeout);
+ menu->navigation_timeout = 0;
+ }
+}
+
+/* When the timeout is elapsed, the navigation region is destroyed
+ * and the menuitem under the pointer (if any) is selected.
+ */
+static gboolean
+gtk_menu_stop_navigating_submenu_cb (gpointer user_data)
+{
+ GtkMenu *menu = user_data;
+ GdkWindow *child_window;
+
+ GDK_THREADS_ENTER ();
+
+ gtk_menu_stop_navigating_submenu (menu);
+
+ if (GTK_WIDGET_REALIZED (menu))
+ {
+ child_window = gdk_window_get_pointer (menu->bin_window, NULL, NULL, NULL);
+
+ if (child_window)
+ {
+ GdkEvent *send_event = gdk_event_new (GDK_ENTER_NOTIFY);
+
+ send_event->crossing.window = g_object_ref (child_window);
+ send_event->crossing.time = GDK_CURRENT_TIME; /* Bogus */
+ send_event->crossing.send_event = TRUE;
+
+ GTK_WIDGET_CLASS (parent_class)->enter_notify_event (GTK_WIDGET (menu), (GdkEventCrossing *)send_event);
+
+ gdk_event_free (send_event);
+ }
+ }
+
+ GDK_THREADS_LEAVE ();
+
+ return FALSE;
+}
+
+static gboolean
+gtk_menu_navigating_submenu (GtkMenu *menu,
+ gint event_x,
+ gint event_y)
+{
+ if (menu->navigation_region)
+ {
+ if (gdk_region_point_in (menu->navigation_region, event_x, event_y))
+ return TRUE;
+ else
+ {
+ gtk_menu_stop_navigating_submenu (menu);
+ return FALSE;
+ }
+ }
return FALSE;
}
+#undef DRAW_STAY_UP_TRIANGLE
+
+#ifdef DRAW_STAY_UP_TRIANGLE
+
+static void
+draw_stay_up_triangle (GdkWindow *window,
+ GdkRegion *region)
+{
+ /* Draw ugly color all over the stay-up triangle */
+ GdkColor ugly_color = { 0, 50000, 10000, 10000 };
+ GdkGCValues gc_values;
+ GdkGC *ugly_gc;
+ GdkRectangle clipbox;
+
+ gc_values.subwindow_mode = GDK_INCLUDE_INFERIORS;
+ ugly_gc = gdk_gc_new_with_values (window, &gc_values, 0 | GDK_GC_SUBWINDOW);
+ gdk_gc_set_rgb_fg_color (ugly_gc, &ugly_color);
+ gdk_gc_set_clip_region (ugly_gc, region);
+
+ gdk_region_get_clipbox (region, &clipbox);
+
+ gdk_draw_rectangle (window,
+ ugly_gc,
+ TRUE,
+ clipbox.x, clipbox.y,
+ clipbox.width, clipbox.height);
+
+ g_object_unref (ugly_gc);
+}
+#endif
+
+static GdkRegion *
+flip_region (GdkRegion *region,
+ gboolean flip_x,
+ gboolean flip_y)
+{
+ gint n_rectangles;
+ GdkRectangle *rectangles;
+ GdkRectangle clipbox;
+ GdkRegion *new_region;
+ gint i;
+
+ new_region = gdk_region_new ();
+
+ gdk_region_get_rectangles (region, &rectangles, &n_rectangles);
+ gdk_region_get_clipbox (region, &clipbox);
+
+ for (i = 0; i < n_rectangles; ++i)
+ {
+ GdkRectangle rect = rectangles[i];
+
+ if (flip_y)
+ rect.y -= 2 * (rect.y - clipbox.y) + rect.height;
+
+ if (flip_x)
+ rect.x -= 2 * (rect.x - clipbox.x) + rect.width;
+
+ gdk_region_union_with_rect (new_region, &rect);
+ }
+
+ g_free (rectangles);
+
+ return new_region;
+}
+
+static void
+gtk_menu_set_submenu_navigation_region (GtkMenu *menu,
+ GtkMenuItem *menu_item,
+ GdkEventCrossing *event)
+{
+ gint submenu_left = 0;
+ gint submenu_right = 0;
+ gint submenu_top = 0;
+ gint submenu_bottom = 0;
+ gint width = 0;
+ gint height = 0;
+ GdkPoint point[3];
+ GtkWidget *event_widget;
+
+ g_return_if_fail (menu_item->submenu != NULL);
+ g_return_if_fail (event != NULL);
+
+ event_widget = gtk_get_event_widget ((GdkEvent*) event);
+
+ gdk_window_get_origin (menu_item->submenu->window, &submenu_left, &submenu_top);
+ gdk_drawable_get_size (menu_item->submenu->window, &width, &height);
+
+ submenu_right = submenu_left + width;
+ submenu_bottom = submenu_top + height;
+
+ gdk_drawable_get_size (event_widget->window, &width, &height);
+
+ if (event->x >= 0 && event->x < width)
+ {
+ gint popdown_delay;
+ gboolean flip_y = FALSE;
+ gboolean flip_x = FALSE;
+
+ gtk_menu_stop_navigating_submenu (menu);
+
+ if (menu_item->submenu_direction == GTK_DIRECTION_RIGHT)
+ {
+ /* right */
+ point[0].x = event->x_root;
+ point[1].x = submenu_left;
+ }
+ else
+ {
+ /* left */
+ point[0].x = event->x_root + 1;
+ point[1].x = 2 * (event->x_root + 1) - submenu_right;
+
+ flip_x = TRUE;
+ }
+
+ if (event->y < 0)
+ {
+ /* top */
+ point[0].y = event->y_root + 1;
+ point[1].y = 2 * (event->y_root + 1) - submenu_top + NAVIGATION_REGION_OVERSHOOT;
+
+ if (point[0].y >= point[1].y - NAVIGATION_REGION_OVERSHOOT)
+ return;
+
+ flip_y = TRUE;
+ }
+ else
+ {
+ /* bottom */
+ point[0].y = event->y_root;
+ point[1].y = submenu_bottom + NAVIGATION_REGION_OVERSHOOT;
+
+ if (point[0].y >= submenu_bottom)
+ return;
+ }
+
+ point[2].x = point[1].x;
+ point[2].y = point[0].y;
+
+ menu->navigation_region = gdk_region_polygon (point, 3, GDK_WINDING_RULE);
+
+ if (flip_x || flip_y)
+ {
+ GdkRegion *new_region = flip_region (menu->navigation_region, flip_x, flip_y);
+ gdk_region_destroy (menu->navigation_region);
+ menu->navigation_region = new_region;
+ }
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu)),
+ "gtk-menu-popdown-delay", &popdown_delay,
+ NULL);
+
+ menu->navigation_timeout = g_timeout_add (popdown_delay,
+ gtk_menu_stop_navigating_submenu_cb, menu);
+
+#ifdef DRAW_STAY_UP_TRIANGLE
+ draw_stay_up_triangle (gdk_get_default_root_window(),
+ menu->navigation_region);
+#endif
+ }
+}
+
static void
gtk_menu_deactivate (GtkMenuShell *menu_shell)
{
GtkWidget *parent;
-
- g_return_if_fail (menu_shell != NULL);
+
g_return_if_fail (GTK_IS_MENU (menu_shell));
-
+
parent = menu_shell->parent_menu_shell;
menu_shell->activate_time = 0;
gtk_menu_popdown (GTK_MENU (menu_shell));
-
+
if (parent)
gtk_menu_shell_deactivate (GTK_MENU_SHELL (parent));
}
+static void
+gtk_menu_position (GtkMenu *menu)
+{
+ GtkWidget *widget;
+ GtkRequisition requisition;
+ GtkMenuPrivate *private;
+ gint x, y;
+ gint scroll_offset;
+ gint menu_height;
+ gboolean push_in;
+ GdkScreen *screen;
+ GdkScreen *pointer_screen;
+ GdkRectangle monitor;
+ gint monitor_num;
+
+ g_return_if_fail (GTK_IS_MENU (menu));
+
+ widget = GTK_WIDGET (menu);
+
+ screen = gtk_widget_get_screen (widget);
+ gdk_display_get_pointer (gdk_screen_get_display (screen),
+ &pointer_screen, &x, &y, NULL);
+
+ /* We need the requisition to figure out the right place to
+ * popup the menu. In fact, we always need to ask here, since
+ * if a size_request was queued while we weren't popped up,
+ * the requisition won't have been recomputed yet.
+ */
+ gtk_widget_size_request (widget, &requisition);
+
+ if (pointer_screen != screen)
+ {
+ /* Pointer is on a different screen; roughly center the
+ * menu on the screen. If someone was using multiscreen
+ * + Xinerama together they'd probably want something
+ * fancier; but that is likely to be vanishingly rare.
+ */
+ x = MAX (0, (gdk_screen_get_width (screen) - requisition.width) / 2);
+ y = MAX (0, (gdk_screen_get_height (screen) - requisition.height) / 2);
+ }
+
+ monitor_num = gdk_screen_get_monitor_at_point (screen, x, y);
+ gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
+
+ push_in = FALSE;
+
+ if (menu->position_func)
+ (* menu->position_func) (menu, &x, &y, &push_in, menu->position_func_data);
+ else
+ {
+ x = CLAMP (x - 2, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
+ y = CLAMP (y - 2, monitor.y, MAX (monitor.y, monitor.y + monitor.height - requisition.height));
+ }
+
+ scroll_offset = 0;
+
+ if (push_in)
+ {
+ menu_height = GTK_WIDGET (menu)->requisition.height;
+
+ if (y + menu_height > monitor.y + monitor.height)
+ {
+ scroll_offset -= y + menu_height - (monitor.y + monitor.height);
+ y = (monitor.y + monitor.height) - menu_height;
+ }
+
+ if (y < monitor.y)
+ {
+ scroll_offset -= y;
+ y = monitor.y;
+ }
+ }
+
+ /* FIXME: should this be done in the various position_funcs ? */
+ x = CLAMP (x, monitor.x, MAX (monitor.x, monitor.x + monitor.width - requisition.width));
+
+ if (y + requisition.height > monitor.y + monitor.height)
+ requisition.height = (monitor.y + monitor.height) - y;
+
+ if (y < monitor.y)
+ {
+ scroll_offset -= y;
+ requisition.height -= -y;
+ y = monitor.y;
+ }
+
+ if (scroll_offset > 0)
+ scroll_offset += MENU_SCROLL_ARROW_HEIGHT;
+
+ gtk_window_move (GTK_WINDOW (GTK_MENU_SHELL (menu)->active ? menu->toplevel : menu->tearoff_window),
+ x, y);
+
+ if (GTK_MENU_SHELL (menu)->active)
+ {
+ private = gtk_menu_get_private (menu);
+ private->have_position = TRUE;
+ private->x = x;
+ private->y = y;
+
+ gtk_widget_queue_resize (menu->toplevel);
+ }
+ else
+ {
+ gtk_window_resize (GTK_WINDOW (menu->tearoff_window),
+ requisition.width, requisition.height);
+ }
+
+ menu->scroll_offset = scroll_offset;
+}
static void
-gtk_menu_show_all (GtkWidget *widget)
+gtk_menu_remove_scroll_timeout (GtkMenu *menu)
+{
+ if (menu->timeout_id)
+ {
+ g_source_remove (menu->timeout_id);
+ menu->timeout_id = 0;
+ }
+}
+
+static void
+gtk_menu_stop_scrolling (GtkMenu *menu)
+{
+ gtk_menu_remove_scroll_timeout (menu);
+
+ menu->upper_arrow_prelight = FALSE;
+ menu->lower_arrow_prelight = FALSE;
+}
+
+static void
+gtk_menu_scroll_to (GtkMenu *menu,
+ gint offset)
+{
+ GtkWidget *widget;
+ gint x, y;
+ gint view_width, view_height;
+ gint border_width;
+ gboolean last_visible;
+ gint menu_height;
+
+ widget = GTK_WIDGET (menu);
+
+ if (menu->tearoff_active &&
+ menu->tearoff_adjustment &&
+ (menu->tearoff_adjustment->value != offset))
+ {
+ menu->tearoff_adjustment->value =
+ CLAMP (offset,
+ 0, menu->tearoff_adjustment->upper - menu->tearoff_adjustment->page_size);
+ gtk_adjustment_value_changed (menu->tearoff_adjustment);
+ }
+
+ /* Move/resize the viewport according to arrows: */
+ view_width = widget->allocation.width;
+ view_height = widget->allocation.height;
+
+ border_width = GTK_CONTAINER (menu)->border_width;
+ view_width -= (border_width + widget->style->xthickness) * 2;
+ view_height -= (border_width + widget->style->ythickness) * 2;
+ menu_height = widget->requisition.height - (border_width + widget->style->ythickness) * 2;
+
+ x = border_width + widget->style->xthickness;
+ y = border_width + widget->style->ythickness;
+
+ if (!menu->tearoff_active)
+ {
+ last_visible = menu->upper_arrow_visible;
+ menu->upper_arrow_visible = (view_height < menu_height && offset > 0);
+
+ if (menu->upper_arrow_visible)
+ view_height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ if ( (last_visible != menu->upper_arrow_visible) &&
+ !menu->upper_arrow_visible)
+ {
+ menu->upper_arrow_prelight = FALSE;
+
+ /* If we hid the upper arrow, possibly remove timeout */
+ if (menu->scroll_step < 0)
+ gtk_menu_stop_scrolling (menu);
+ }
+
+ last_visible = menu->lower_arrow_visible;
+ menu->lower_arrow_visible = (view_height < menu_height && offset < menu_height - view_height);
+
+ if (menu->lower_arrow_visible)
+ view_height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ if ( (last_visible != menu->lower_arrow_visible) &&
+ !menu->lower_arrow_visible)
+ {
+ menu->lower_arrow_prelight = FALSE;
+
+ /* If we hid the lower arrow, possibly remove timeout */
+ if (menu->scroll_step > 0)
+ gtk_menu_stop_scrolling (menu);
+ }
+
+ if (menu->upper_arrow_visible)
+ y += MENU_SCROLL_ARROW_HEIGHT;
+ }
+
+ offset = CLAMP (offset, 0, menu_height - view_height);
+
+ /* Scroll the menu: */
+ if (GTK_WIDGET_REALIZED (menu))
+ gdk_window_move (menu->bin_window, 0, -offset);
+
+ if (GTK_WIDGET_REALIZED (menu))
+ gdk_window_move_resize (menu->view_window,
+ x,
+ y,
+ view_width,
+ view_height);
+
+ menu->scroll_offset = offset;
+}
+
+static gboolean
+compute_child_offset (GtkMenu *menu,
+ GtkWidget *menu_item,
+ gint *offset,
+ gint *height,
+ gboolean *is_last_child)
+{
+ GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
+ GList *children;
+ gint child_offset = 0;
+
+ for (children = menu_shell->children; children; children = children->next)
+ {
+ GtkWidget *child = children->data;
+ GtkRequisition child_requisition;
+ gint child_height;
+
+ if (GTK_WIDGET_VISIBLE (child))
+ {
+ gtk_widget_size_request (child, &child_requisition);
+ child_height = child_requisition.height;
+ }
+ else
+ child_height = 0;
+
+ if (child == menu_item)
+ {
+ if (is_last_child)
+ *is_last_child = (children == NULL);
+ if (offset)
+ *offset = child_offset;
+ if (height)
+ *height = child_height;
+
+ return TRUE;
+ }
+
+ child_offset += child_height;
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_menu_scroll_item_visible (GtkMenuShell *menu_shell,
+ GtkWidget *menu_item)
{
- GtkContainer *container;
+ GtkMenu *menu;
+ gint child_offset, child_height;
+ gint width, height;
+ gint y;
+ gint arrow_height;
+ gboolean last_child = 0;
+
+ menu = GTK_MENU (menu_shell);
- g_return_if_fail (widget != NULL);
+ /* We need to check if the selected item fully visible.
+ * If not we need to scroll the menu so that it becomes fully
+ * visible.
+ */
+
+ if (compute_child_offset (menu, menu_item,
+ &child_offset, &child_height, &last_child))
+ {
+ y = menu->scroll_offset;
+ gdk_drawable_get_size (GTK_WIDGET (menu)->window, &width, &height);
+
+ height -= 2*GTK_CONTAINER (menu)->border_width + 2*GTK_WIDGET (menu)->style->ythickness;
+
+ if (child_offset < y)
+ {
+ /* Ignore the enter event we might get if the pointer is on the menu
+ */
+ menu_shell->ignore_enter = TRUE;
+ gtk_menu_scroll_to (menu, child_offset);
+ }
+ else
+ {
+ arrow_height = 0;
+ if (menu->upper_arrow_visible && !menu->tearoff_active)
+ arrow_height += MENU_SCROLL_ARROW_HEIGHT;
+ if (menu->lower_arrow_visible && !menu->tearoff_active)
+ arrow_height += MENU_SCROLL_ARROW_HEIGHT;
+
+ if (child_offset + child_height > y + height - arrow_height)
+ {
+ arrow_height = 0;
+ if (!last_child && !menu->tearoff_active)
+ arrow_height += MENU_SCROLL_ARROW_HEIGHT;
+
+ y = child_offset + child_height - height + arrow_height;
+ if ((y > 0) && !menu->tearoff_active)
+ {
+ /* Need upper arrow */
+ arrow_height += MENU_SCROLL_ARROW_HEIGHT;
+ y = child_offset + child_height - height + arrow_height;
+ }
+ /* Ignore the enter event we might get if the pointer is on the menu
+ */
+ menu_shell->ignore_enter = TRUE;
+ gtk_menu_scroll_to (menu, y);
+ }
+ }
+
+ }
+}
+
+static void
+gtk_menu_select_item (GtkMenuShell *menu_shell,
+ GtkWidget *menu_item)
+{
+ GtkMenu *menu = GTK_MENU (menu_shell);
+
+ if (GTK_WIDGET_REALIZED (GTK_WIDGET (menu)))
+ gtk_menu_scroll_item_visible (menu_shell, menu_item);
+
+ GTK_MENU_SHELL_CLASS (parent_class)->select_item (menu_shell, menu_item);
+}
+
+
+/* Reparent the menu, taking care of the refcounting
+ *
+ * If unrealize is true we force a unrealize while reparenting the parent.
+ * This can help eliminate flicker in some cases.
+ *
+ * What happens is that when the menu is unrealized and then re-realized,
+ * the allocations are as follows:
+ *
+ * parent - 1x1 at (0,0)
+ * child1 - 100x20 at (0,0)
+ * child2 - 100x20 at (0,20)
+ * child3 - 100x20 at (0,40)
+ *
+ * That is, the parent is small but the children are full sized. Then,
+ * when the queued_resize gets processed, the parent gets resized to
+ * full size.
+ *
+ * But in order to eliminate flicker when scrolling, gdkgeometry-x11.c
+ * contains the following logic:
+ *
+ * - if a move or resize operation on a window would change the clip
+ * region on the children, then before the window is resized
+ * the background for children is temporarily set to None, the
+ * move/resize done, and the background for the children restored.
+ *
+ * So, at the point where the parent is resized to final size, the
+ * background for the children is temporarily None, and thus they
+ * are not cleared to the background color and the previous background
+ * (the image of the menu) is left in place.
+ */
+static void
+gtk_menu_reparent (GtkMenu *menu,
+ GtkWidget *new_parent,
+ gboolean unrealize)
+{
+ GtkObject *object = GTK_OBJECT (menu);
+ GtkWidget *widget = GTK_WIDGET (menu);
+ gboolean was_floating = GTK_OBJECT_FLOATING (object);
+
+ g_object_ref (object);
+ gtk_object_sink (object);
+
+ if (unrealize)
+ {
+ g_object_ref (object);
+ gtk_container_remove (GTK_CONTAINER (widget->parent), widget);
+ gtk_container_add (GTK_CONTAINER (new_parent), widget);
+ g_object_unref (object);
+ }
+ else
+ gtk_widget_reparent (GTK_WIDGET (menu), new_parent);
+
+ if (was_floating)
+ GTK_OBJECT_SET_FLAGS (object, GTK_FLOATING);
+ else
+ g_object_unref (object);
+}
+
+static void
+gtk_menu_show_all (GtkWidget *widget)
+{
g_return_if_fail (GTK_IS_MENU (widget));
- container = GTK_CONTAINER (widget);
/* Show children, but not self. */
- gtk_container_foreach (container, (GtkCallback) gtk_widget_show_all, NULL);
+ gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_show_all, NULL);
}
static void
gtk_menu_hide_all (GtkWidget *widget)
{
- GtkContainer *container;
-
- g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_MENU (widget));
- container = GTK_CONTAINER (widget);
/* Hide children, but not self. */
- gtk_container_foreach (container, (GtkCallback) gtk_widget_hide_all, NULL);
+ gtk_container_foreach (GTK_CONTAINER (widget), (GtkCallback) gtk_widget_hide_all, NULL);
+}
+
+/**
+ * gtk_menu_set_screen:
+ * @menu: a #GtkMenu.
+ * @screen: a #GdkScreen, or %NULL if the screen should be
+ * determined by the widget the menu is attached to.
+ *
+ * Sets the #GdkScreen on which the menu will be displayed.
+ *
+ * Since: 2.2
+ **/
+void
+gtk_menu_set_screen (GtkMenu *menu,
+ GdkScreen *screen)
+{
+ g_return_if_fail (GTK_IS_MENU (menu));
+ g_return_if_fail (!screen || GDK_IS_SCREEN (screen));
+
+ g_object_set_data (G_OBJECT (menu), "gtk-menu-explicit-screen", screen);
+
+ if (screen)
+ {
+ menu_change_screen (menu, screen);
+ }
+ else
+ {
+ GtkWidget *attach_widget = gtk_menu_get_attach_widget (menu);
+ if (attach_widget)
+ attach_widget_screen_changed (attach_widget, NULL, menu);
+ }
+}
+
+
+static gint
+gtk_menu_get_popup_delay (GtkMenuShell *menu_shell)
+{
+ gint popup_delay;
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
+ "gtk-menu-popup-delay", &popup_delay,
+ NULL);
+
+ return popup_delay;
+}
+
+static gint
+get_visible_size (GtkMenu *menu)
+{
+ GtkWidget *widget = GTK_WIDGET (menu);
+ GtkContainer *container = GTK_CONTAINER (menu);
+
+ gint menu_height = (widget->allocation.height
+ - 2 * (container->border_width
+ + widget->style->ythickness));
+
+ if (menu->upper_arrow_visible && !menu->tearoff_active)
+ menu_height -= MENU_SCROLL_ARROW_HEIGHT;
+ if (menu->lower_arrow_visible && !menu->tearoff_active)
+ menu_height -= MENU_SCROLL_ARROW_HEIGHT;
+
+ return menu_height;
}
+/* Find the sensitive on-screen child containing @y, or if none,
+ * the nearest selectable onscreen child. (%NULL if none)
+ */
+static GtkWidget *
+child_at (GtkMenu *menu,
+ gint y)
+{
+ GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
+ GtkWidget *child = NULL;
+ gint child_offset = 0;
+ GList *children;
+ gint menu_height;
+ gint lower, upper; /* Onscreen bounds */
+
+ menu_height = get_visible_size (menu);
+ lower = menu->scroll_offset;
+ upper = menu->scroll_offset + menu_height;
+
+ for (children = menu_shell->children; children; children = children->next)
+ {
+ if (GTK_WIDGET_VISIBLE (children->data))
+ {
+ GtkRequisition child_requisition;
+
+ gtk_widget_size_request (children->data, &child_requisition);
+
+ if (_gtk_menu_item_is_selectable (children->data) &&
+ child_offset >= lower &&
+ child_offset + child_requisition.height <= upper)
+ {
+ child = children->data;
+
+ if (child_offset + child_requisition.height > y &&
+ !GTK_IS_TEAROFF_MENU_ITEM (child))
+ return child;
+ }
+
+ child_offset += child_requisition.height;
+ }
+ }
+
+ return child;
+}
+
+static void
+gtk_menu_real_move_scroll (GtkMenu *menu,
+ GtkScrollType type)
+{
+ GtkMenuShell *menu_shell = GTK_MENU_SHELL (menu);
+
+ switch (type)
+ {
+ case GTK_SCROLL_PAGE_UP:
+ case GTK_SCROLL_PAGE_DOWN:
+ {
+ gint page_size = get_visible_size (menu);
+ gint old_offset;
+ gint child_offset = 0;
+ gboolean old_upper_arrow_visible;
+ gint step;
+
+ if (type == GTK_SCROLL_PAGE_UP)
+ step = - page_size;
+ else
+ step = page_size;
+
+ if (menu_shell->active_menu_item)
+ {
+ gint child_height;
+
+ compute_child_offset (menu, menu_shell->active_menu_item,
+ &child_offset, &child_height, NULL);
+ child_offset += child_height / 2;
+ }
+
+ menu_shell->ignore_enter = TRUE;
+ old_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
+ old_offset = menu->scroll_offset;
+ gtk_menu_scroll_to (menu, menu->scroll_offset + step);
+
+ if (menu_shell->active_menu_item)
+ {
+ GtkWidget *new_child;
+ gboolean new_upper_arrow_visible = menu->upper_arrow_visible && !menu->tearoff_active;
+
+ if (menu->scroll_offset != old_offset)
+ step = menu->scroll_offset - old_offset;
+
+ step -= (new_upper_arrow_visible - old_upper_arrow_visible) * MENU_SCROLL_ARROW_HEIGHT;
+
+ new_child = child_at (menu, child_offset + step);
+ if (new_child)
+ gtk_menu_shell_select_item (menu_shell, new_child);
+ }
+ }
+ break;
+ case GTK_SCROLL_START:
+ /* Ignore the enter event we might get if the pointer is on the menu
+ */
+ menu_shell->ignore_enter = TRUE;
+ gtk_menu_scroll_to (menu, 0);
+ gtk_menu_shell_select_first (menu_shell, TRUE);
+ break;
+ case GTK_SCROLL_END:
+ /* Ignore the enter event we might get if the pointer is on the menu
+ */
+ menu_shell->ignore_enter = TRUE;
+ gtk_menu_scroll_to (menu, G_MAXINT);
+ _gtk_menu_shell_select_last (menu_shell, TRUE);
+ break;
+ default:
+ break;
+ }
+}
projects / ~andy / gtk / blobdiff