forked from AuroraMiddleware/gtk
1977 lines
65 KiB
C
1977 lines
65 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/**
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* SECTION:gtkmenushell
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* @Title: GtkMenuShell
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* @Short_description: A base class for menu objects
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*
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* A #GtkMenuShell is the abstract base class used to derive the
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* #GtkMenu and #GtkMenuBar subclasses.
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*
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* A #GtkMenuShell is a container of #GtkMenuItem objects arranged
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* in a list which can be navigated, selected, and activated by the
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* user to perform application functions. A #GtkMenuItem can have a
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* submenu associated with it, allowing for nested hierarchical menus.
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*
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* # Terminology
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*
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* A menu item can be “selected”, this means that it is displayed
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* in the prelight state, and if it has a submenu, that submenu
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* will be popped up.
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*
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* A menu is “active” when it is visible onscreen and the user
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* is selecting from it. A menubar is not active until the user
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* clicks on one of its menuitems. When a menu is active,
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* passing the mouse over a submenu will pop it up.
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*
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* There is also a concept of the current menu and a current
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* menu item. The current menu item is the selected menu item
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* that is furthest down in the hierarchy. (Every active menu shell
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* does not necessarily contain a selected menu item, but if
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* it does, then the parent menu shell must also contain
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* a selected menu item.) The current menu is the menu that
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* contains the current menu item. It will always have a GTK
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* grab and receive all key presses.
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*/
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#include "config.h"
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#include "gtkmenushellprivate.h"
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#include "gtkbindings.h"
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#include "gtkintl.h"
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#include "gtkkeyhash.h"
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#include "gtklabelprivate.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkmenubar.h"
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#include "gtkmenuitemprivate.h"
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#include "gtkmnemonichash.h"
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#include "gtkmodelmenuitem.h"
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#include "gtkprivate.h"
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#include "gtkseparatormenuitem.h"
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#include "gtktypebuiltins.h"
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#include "gtkwidgetprivate.h"
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#include "gtkwindow.h"
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#include "gtkwindowprivate.h"
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#include "gtkeventcontrollerkey.h"
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#include "gtkgesturemultipress.h"
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#include "a11y/gtkmenushellaccessible.h"
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#define MENU_SHELL_TIMEOUT 500
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#define MENU_POPUP_DELAY 225
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#define MENU_POPDOWN_DELAY 1000
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enum {
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DEACTIVATE,
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SELECTION_DONE,
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MOVE_CURRENT,
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ACTIVATE_CURRENT,
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CANCEL,
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CYCLE_FOCUS,
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MOVE_SELECTED,
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INSERT,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_TAKE_FOCUS
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};
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static void gtk_menu_shell_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_shell_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_menu_shell_finalize (GObject *object);
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static void gtk_menu_shell_dispose (GObject *object);
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static gboolean gtk_menu_shell_key_press (GtkEventControllerKey *key,
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guint keyval,
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guint keycode,
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GdkModifierType modifiers,
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GtkWidget *widget);
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static void gtk_menu_shell_root (GtkWidget *widget);
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static void multi_press_pressed (GtkGestureMultiPress *gesture,
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gint n_press,
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gdouble x,
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gdouble y,
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GtkMenuShell *menu_shell);
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static void multi_press_released (GtkGestureMultiPress *gesture,
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gint n_press,
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gdouble x,
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gdouble y,
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GtkMenuShell *menu_shell);
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static void multi_press_stopped (GtkGestureMultiPress *gesture,
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GtkMenuShell *menu_shell);
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static void gtk_menu_shell_add (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_menu_shell_remove (GtkContainer *container,
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GtkWidget *widget);
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static void gtk_menu_shell_forall (GtkContainer *container,
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GtkCallback callback,
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gpointer callback_data);
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static void gtk_menu_shell_real_insert (GtkMenuShell *menu_shell,
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GtkWidget *child,
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gint position);
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static void gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell);
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static GType gtk_menu_shell_child_type (GtkContainer *container);
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static void gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell,
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GtkWidget *menu_item);
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static gboolean gtk_menu_shell_select_submenu_first (GtkMenuShell *menu_shell);
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static void gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
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GtkMenuDirectionType direction);
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static void gtk_real_menu_shell_activate_current (GtkMenuShell *menu_shell,
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gboolean force_hide);
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static void gtk_real_menu_shell_cancel (GtkMenuShell *menu_shell);
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static void gtk_real_menu_shell_cycle_focus (GtkMenuShell *menu_shell,
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GtkDirectionType dir);
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static void gtk_menu_shell_reset_key_hash (GtkMenuShell *menu_shell);
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static gboolean gtk_menu_shell_activate_mnemonic (GtkMenuShell *menu_shell,
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guint keycode,
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GdkModifierType state,
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guint group);
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static gboolean gtk_menu_shell_real_move_selected (GtkMenuShell *menu_shell,
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gint distance);
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static guint menu_shell_signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (GtkMenuShell, gtk_menu_shell, GTK_TYPE_CONTAINER)
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static void
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gtk_menu_shell_class_init (GtkMenuShellClass *klass)
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{
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GObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkContainerClass *container_class;
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GtkBindingSet *binding_set;
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object_class = (GObjectClass*) klass;
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widget_class = (GtkWidgetClass*) klass;
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container_class = (GtkContainerClass*) klass;
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object_class->set_property = gtk_menu_shell_set_property;
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object_class->get_property = gtk_menu_shell_get_property;
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object_class->finalize = gtk_menu_shell_finalize;
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object_class->dispose = gtk_menu_shell_dispose;
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widget_class->root = gtk_menu_shell_root;
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container_class->add = gtk_menu_shell_add;
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container_class->remove = gtk_menu_shell_remove;
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container_class->forall = gtk_menu_shell_forall;
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container_class->child_type = gtk_menu_shell_child_type;
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klass->submenu_placement = GTK_TOP_BOTTOM;
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klass->deactivate = gtk_real_menu_shell_deactivate;
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klass->selection_done = NULL;
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klass->move_current = gtk_real_menu_shell_move_current;
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klass->activate_current = gtk_real_menu_shell_activate_current;
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klass->cancel = gtk_real_menu_shell_cancel;
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klass->select_item = gtk_menu_shell_real_select_item;
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klass->insert = gtk_menu_shell_real_insert;
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klass->move_selected = gtk_menu_shell_real_move_selected;
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/**
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* GtkMenuShell::deactivate:
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* @menushell: the object which received the signal
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*
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* This signal is emitted when a menu shell is deactivated.
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*/
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menu_shell_signals[DEACTIVATE] =
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g_signal_new (I_("deactivate"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkMenuShellClass, deactivate),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 0);
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/**
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* GtkMenuShell::selection-done:
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* @menushell: the object which received the signal
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*
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* This signal is emitted when a selection has been
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* completed within a menu shell.
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*/
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menu_shell_signals[SELECTION_DONE] =
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g_signal_new (I_("selection-done"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkMenuShellClass, selection_done),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 0);
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/**
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* GtkMenuShell::move-current:
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* @menushell: the object which received the signal
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* @direction: the direction to move
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*
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* A keybinding signal which moves the current menu item
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* in the direction specified by @direction.
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*/
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menu_shell_signals[MOVE_CURRENT] =
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g_signal_new (I_("move-current"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkMenuShellClass, move_current),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 1,
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GTK_TYPE_MENU_DIRECTION_TYPE);
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/**
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* GtkMenuShell::activate-current:
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* @menushell: the object which received the signal
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* @force_hide: if %TRUE, hide the menu after activating the menu item
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*
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* An action signal that activates the current menu item within
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* the menu shell.
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*/
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menu_shell_signals[ACTIVATE_CURRENT] =
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g_signal_new (I_("activate-current"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkMenuShellClass, activate_current),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 1,
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G_TYPE_BOOLEAN);
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/**
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* GtkMenuShell::cancel:
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* @menushell: the object which received the signal
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*
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* An action signal which cancels the selection within the menu shell.
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* Causes the #GtkMenuShell::selection-done signal to be emitted.
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*/
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menu_shell_signals[CANCEL] =
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g_signal_new (I_("cancel"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkMenuShellClass, cancel),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 0);
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/**
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* GtkMenuShell::cycle-focus:
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* @menushell: the object which received the signal
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* @direction: the direction to cycle in
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*
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* A keybinding signal which moves the focus in the
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* given @direction.
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*/
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menu_shell_signals[CYCLE_FOCUS] =
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g_signal_new_class_handler (I_("cycle-focus"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_CALLBACK (gtk_real_menu_shell_cycle_focus),
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NULL, NULL,
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NULL,
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G_TYPE_NONE, 1,
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GTK_TYPE_DIRECTION_TYPE);
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/**
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* GtkMenuShell::move-selected:
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* @menu_shell: the object on which the signal is emitted
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* @distance: +1 to move to the next item, -1 to move to the previous
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*
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* The ::move-selected signal is emitted to move the selection to
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* another item.
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*
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* Returns: %TRUE to stop the signal emission, %FALSE to continue
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*/
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menu_shell_signals[MOVE_SELECTED] =
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g_signal_new (I_("move-selected"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkMenuShellClass, move_selected),
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_gtk_boolean_handled_accumulator, NULL,
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_gtk_marshal_BOOLEAN__INT,
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G_TYPE_BOOLEAN, 1,
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G_TYPE_INT);
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/**
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* GtkMenuShell::insert:
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* @menu_shell: the object on which the signal is emitted
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* @child: the #GtkMenuItem that is being inserted
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* @position: the position at which the insert occurs
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*
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* The ::insert signal is emitted when a new #GtkMenuItem is added to
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* a #GtkMenuShell. A separate signal is used instead of
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* GtkContainer::add because of the need for an additional position
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* parameter.
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*
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* The inverse of this signal is the GtkContainer::removed signal.
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**/
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menu_shell_signals[INSERT] =
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g_signal_new (I_("insert"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkMenuShellClass, insert),
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NULL, NULL,
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_gtk_marshal_VOID__OBJECT_INT,
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G_TYPE_NONE, 2, GTK_TYPE_WIDGET, G_TYPE_INT);
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g_signal_set_va_marshaller (menu_shell_signals[INSERT],
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G_OBJECT_CLASS_TYPE (object_class),
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_gtk_marshal_VOID__OBJECT_INTv);
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binding_set = gtk_binding_set_by_class (klass);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_Escape, 0,
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"cancel", 0);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_Return, 0,
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"activate-current", 1,
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G_TYPE_BOOLEAN,
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TRUE);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_ISO_Enter, 0,
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"activate-current", 1,
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G_TYPE_BOOLEAN,
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TRUE);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_KP_Enter, 0,
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"activate-current", 1,
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G_TYPE_BOOLEAN,
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TRUE);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_space, 0,
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"activate-current", 1,
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G_TYPE_BOOLEAN,
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FALSE);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_KP_Space, 0,
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"activate-current", 1,
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G_TYPE_BOOLEAN,
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FALSE);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_F10, 0,
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"cycle-focus", 1,
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GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
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gtk_binding_entry_add_signal (binding_set,
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GDK_KEY_F10, GDK_SHIFT_MASK,
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"cycle-focus", 1,
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GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
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/**
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* GtkMenuShell:take-focus:
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*
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* A boolean that determines whether the menu and its submenus grab the
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* keyboard focus. See gtk_menu_shell_set_take_focus() and
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* gtk_menu_shell_get_take_focus().
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**/
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g_object_class_install_property (object_class,
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PROP_TAKE_FOCUS,
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g_param_spec_boolean ("take-focus",
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P_("Take Focus"),
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P_("A boolean that determines whether the menu grabs the keyboard focus"),
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TRUE,
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GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
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gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_MENU_SHELL_ACCESSIBLE);
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}
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static GType
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gtk_menu_shell_child_type (GtkContainer *container)
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{
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return GTK_TYPE_MENU_ITEM;
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}
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static void
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gtk_menu_shell_init (GtkMenuShell *menu_shell)
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{
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GtkWidget *widget = GTK_WIDGET (menu_shell);
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GtkEventController *controller;
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menu_shell->priv = gtk_menu_shell_get_instance_private (menu_shell);
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menu_shell->priv->take_focus = TRUE;
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controller = gtk_event_controller_key_new ();
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g_signal_connect (controller, "key-pressed",
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G_CALLBACK (gtk_menu_shell_key_press), widget);
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gtk_widget_add_controller (widget, controller);
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gtk_widget_set_has_surface (widget, FALSE);
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controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
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gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (controller), 0);
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g_signal_connect (controller, "pressed",
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G_CALLBACK (multi_press_pressed), menu_shell);
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g_signal_connect (controller, "released",
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G_CALLBACK (multi_press_released), menu_shell);
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g_signal_connect (controller, "stopped",
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G_CALLBACK (multi_press_stopped), menu_shell);
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gtk_widget_add_controller (widget, controller);
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}
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static void
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gtk_menu_shell_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
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switch (prop_id)
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{
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case PROP_TAKE_FOCUS:
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gtk_menu_shell_set_take_focus (menu_shell, g_value_get_boolean (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_menu_shell_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
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switch (prop_id)
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{
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case PROP_TAKE_FOCUS:
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g_value_set_boolean (value, gtk_menu_shell_get_take_focus (menu_shell));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_finalize (GObject *object)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->mnemonic_hash)
|
||
_gtk_mnemonic_hash_free (priv->mnemonic_hash);
|
||
if (priv->key_hash)
|
||
_gtk_key_hash_free (priv->key_hash);
|
||
|
||
G_OBJECT_CLASS (gtk_menu_shell_parent_class)->finalize (object);
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_menu_shell_dispose (GObject *object)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (object);
|
||
|
||
g_clear_pointer (&menu_shell->priv->tracker, gtk_menu_tracker_free);
|
||
gtk_menu_shell_deactivate (menu_shell);
|
||
|
||
G_OBJECT_CLASS (gtk_menu_shell_parent_class)->dispose (object);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_append:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @child: (type Gtk.MenuItem): The #GtkMenuItem to add
|
||
*
|
||
* Adds a new #GtkMenuItem to the end of the menu shell's
|
||
* item list.
|
||
*/
|
||
void
|
||
gtk_menu_shell_append (GtkMenuShell *menu_shell,
|
||
GtkWidget *child)
|
||
{
|
||
gtk_menu_shell_insert (menu_shell, child, -1);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_prepend:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @child: The #GtkMenuItem to add
|
||
*
|
||
* Adds a new #GtkMenuItem to the beginning of the menu shell's
|
||
* item list.
|
||
*/
|
||
void
|
||
gtk_menu_shell_prepend (GtkMenuShell *menu_shell,
|
||
GtkWidget *child)
|
||
{
|
||
gtk_menu_shell_insert (menu_shell, child, 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_insert:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @child: The #GtkMenuItem to add
|
||
* @position: The position in the item list where @child
|
||
* is added. Positions are numbered from 0 to n-1
|
||
*
|
||
* Adds a new #GtkMenuItem to the menu shell’s item list
|
||
* at the position indicated by @position.
|
||
*/
|
||
void
|
||
gtk_menu_shell_insert (GtkMenuShell *menu_shell,
|
||
GtkWidget *child,
|
||
gint position)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (GTK_IS_MENU_ITEM (child));
|
||
|
||
g_signal_emit (menu_shell, menu_shell_signals[INSERT], 0, child, position);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_real_insert (GtkMenuShell *menu_shell,
|
||
GtkWidget *child,
|
||
gint position)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
priv->children = g_list_insert (priv->children, child, position);
|
||
|
||
if (gtk_widget_get_parent (child) == NULL)
|
||
gtk_widget_set_parent (child, GTK_WIDGET (menu_shell));
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_deactivate:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Deactivates the menu shell.
|
||
*
|
||
* Typically this results in the menu shell being erased
|
||
* from the screen.
|
||
*/
|
||
void
|
||
gtk_menu_shell_deactivate (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
|
||
if (menu_shell->priv->active)
|
||
g_signal_emit (menu_shell, menu_shell_signals[DEACTIVATE], 0);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_activate (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (!priv->active)
|
||
{
|
||
GdkDevice *device;
|
||
|
||
device = gtk_get_current_event_device ();
|
||
|
||
_gtk_menu_shell_set_grab_device (menu_shell, device);
|
||
gtk_grab_add (GTK_WIDGET (menu_shell));
|
||
|
||
priv->have_grab = TRUE;
|
||
priv->active = TRUE;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_deactivate_and_emit_done (GtkMenuShell *menu_shell)
|
||
{
|
||
gtk_menu_shell_deactivate (menu_shell);
|
||
g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
|
||
}
|
||
|
||
static GtkMenuShell *
|
||
gtk_menu_shell_get_toplevel_shell (GtkMenuShell *menu_shell)
|
||
{
|
||
while (menu_shell->priv->parent_menu_shell)
|
||
menu_shell = GTK_MENU_SHELL (menu_shell->priv->parent_menu_shell);
|
||
|
||
return menu_shell;
|
||
}
|
||
|
||
static void
|
||
multi_press_stopped (GtkGestureMultiPress *gesture,
|
||
GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GdkSurface *surface;
|
||
GdkEvent *event;
|
||
|
||
event = gtk_get_current_event ();
|
||
if (!event)
|
||
return;
|
||
|
||
if (gdk_event_get_grab_surface (event, &surface))
|
||
{
|
||
if (priv->have_xgrab && surface == NULL)
|
||
{
|
||
/* Unset the active menu item so gtk_menu_popdown() doesn't see it. */
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
gtk_menu_shell_deactivate_and_emit_done (menu_shell);
|
||
}
|
||
}
|
||
|
||
g_object_unref (event);
|
||
}
|
||
|
||
static void
|
||
multi_press_pressed (GtkGestureMultiPress *gesture,
|
||
gint n_press,
|
||
gdouble x,
|
||
gdouble y,
|
||
GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GtkWidget *menu_item;
|
||
GdkEvent *event;
|
||
|
||
event = gtk_get_current_event ();
|
||
menu_item = gtk_get_event_target_with_type (event, GTK_TYPE_MENU_ITEM);
|
||
|
||
if (menu_item &&
|
||
_gtk_menu_item_is_selectable (menu_item) &&
|
||
gtk_widget_get_parent (menu_item) == GTK_WIDGET (menu_shell))
|
||
{
|
||
if (menu_item != menu_shell->priv->active_menu_item)
|
||
{
|
||
/* select the menu item *before* activating the shell, so submenus
|
||
* which might be open are closed the friendly way. If we activate
|
||
* (and thus grab) this menu shell first, we might get grab_broken
|
||
* events which will close the entire menu hierarchy. Selecting the
|
||
* menu item also fixes up the state as if enter_notify() would
|
||
* have run before (which normally selects the item).
|
||
*/
|
||
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement != GTK_TOP_BOTTOM)
|
||
gtk_menu_shell_select_item (menu_shell, menu_item);
|
||
}
|
||
|
||
if (GTK_MENU_ITEM (menu_item)->priv->submenu != NULL &&
|
||
!gtk_widget_get_visible (GTK_MENU_ITEM (menu_item)->priv->submenu))
|
||
{
|
||
_gtk_menu_item_popup_submenu (menu_item, FALSE);
|
||
priv->activated_submenu = TRUE;
|
||
}
|
||
}
|
||
|
||
if (!priv->active || !priv->button)
|
||
{
|
||
gboolean initially_active = priv->active;
|
||
guint button;
|
||
guint32 time;
|
||
|
||
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
|
||
time = gdk_event_get_time (event);
|
||
|
||
priv->button = button;
|
||
|
||
if (menu_item)
|
||
{
|
||
if (_gtk_menu_item_is_selectable (menu_item) &&
|
||
gtk_widget_get_parent (menu_item) == GTK_WIDGET (menu_shell) &&
|
||
menu_item != priv->active_menu_item)
|
||
{
|
||
priv->active = TRUE;
|
||
|
||
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement == GTK_TOP_BOTTOM)
|
||
{
|
||
priv->activate_time = time;
|
||
gtk_menu_shell_select_item (menu_shell, menu_item);
|
||
}
|
||
}
|
||
}
|
||
else if (!initially_active)
|
||
{
|
||
gtk_menu_shell_deactivate (menu_shell);
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture),
|
||
GTK_EVENT_SEQUENCE_CLAIMED);
|
||
}
|
||
}
|
||
|
||
g_object_unref (event);
|
||
}
|
||
|
||
static void
|
||
multi_press_released (GtkGestureMultiPress *gesture,
|
||
gint n_press,
|
||
gdouble x,
|
||
gdouble y,
|
||
GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GtkMenuShell *parent_shell = GTK_MENU_SHELL (priv->parent_menu_shell);
|
||
gboolean activated_submenu = FALSE;
|
||
guint new_button;
|
||
guint32 time;
|
||
GdkEvent *event;
|
||
|
||
event = gtk_get_current_event ();
|
||
new_button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
|
||
time = gdk_event_get_time (event);
|
||
|
||
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
|
||
|
||
if (parent_shell)
|
||
{
|
||
/* If a submenu was just activated, it is its shell which is receiving
|
||
* the button release event. In this case, we must check the parent
|
||
* shell to know about the submenu state.
|
||
*/
|
||
activated_submenu = parent_shell->priv->activated_submenu;
|
||
parent_shell->priv->activated_submenu = FALSE;
|
||
}
|
||
|
||
if (priv->parent_menu_shell &&
|
||
(time - GTK_MENU_SHELL (priv->parent_menu_shell)->priv->activate_time) < MENU_SHELL_TIMEOUT)
|
||
{
|
||
/* The button-press originated in the parent menu bar and we are
|
||
* a pop-up menu. It was a quick press-and-release so we don't want
|
||
* to activate an item but we leave the popup in place instead.
|
||
* https://bugzilla.gnome.org/show_bug.cgi?id=703069
|
||
*/
|
||
GTK_MENU_SHELL (priv->parent_menu_shell)->priv->activate_time = 0;
|
||
return;
|
||
}
|
||
|
||
if (priv->active)
|
||
{
|
||
GtkWidget *menu_item;
|
||
guint button = priv->button;
|
||
|
||
priv->button = 0;
|
||
|
||
if (button && (new_button != button) && priv->parent_menu_shell)
|
||
{
|
||
gtk_menu_shell_deactivate_and_emit_done (gtk_menu_shell_get_toplevel_shell (menu_shell));
|
||
return;
|
||
}
|
||
|
||
if ((time - priv->activate_time) <= MENU_SHELL_TIMEOUT)
|
||
{
|
||
/* We only ever want to prevent deactivation on the first
|
||
* press/release. Setting the time to zero is a bit of a
|
||
* hack, since we could be being triggered in the first
|
||
* few fractions of a second after a server time wraparound.
|
||
* the chances of that happening are ~1/10^6, without
|
||
* serious harm if we lose.
|
||
*/
|
||
priv->activate_time = 0;
|
||
return;
|
||
}
|
||
|
||
menu_item = gtk_get_event_target_with_type (event, GTK_TYPE_MENU_ITEM);
|
||
|
||
if (menu_item)
|
||
{
|
||
GtkWidget *submenu = GTK_MENU_ITEM (menu_item)->priv->submenu;
|
||
GtkWidget *parent_menu_item_shell = gtk_widget_get_parent (menu_item);
|
||
|
||
if (!_gtk_menu_item_is_selectable (GTK_WIDGET (menu_item)))
|
||
return;
|
||
|
||
if (submenu == NULL)
|
||
{
|
||
gtk_menu_shell_activate_item (menu_shell, GTK_WIDGET (menu_item), TRUE);
|
||
return;
|
||
}
|
||
else if (GTK_MENU_SHELL (parent_menu_item_shell)->priv->parent_menu_shell &&
|
||
(activated_submenu ||
|
||
GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement != GTK_TOP_BOTTOM))
|
||
{
|
||
GTimeVal *popup_time;
|
||
gint64 usec_since_popup = 0;
|
||
|
||
popup_time = g_object_get_data (G_OBJECT (menu_shell),
|
||
"gtk-menu-exact-popup-time");
|
||
if (popup_time)
|
||
{
|
||
GTimeVal current_time;
|
||
|
||
g_get_current_time (¤t_time);
|
||
|
||
usec_since_popup = ((gint64) current_time.tv_sec * 1000 * 1000 +
|
||
(gint64) current_time.tv_usec -
|
||
(gint64) popup_time->tv_sec * 1000 * 1000 -
|
||
(gint64) popup_time->tv_usec);
|
||
|
||
g_object_set_data (G_OBJECT (menu_shell),
|
||
"gtk-menu-exact-popup-time", NULL);
|
||
}
|
||
|
||
/* Only close the submenu on click if we opened the
|
||
* menu explicitly (usec_since_popup == 0) or
|
||
* enough time has passed since it was opened by
|
||
* GtkMenuItem's timeout (usec_since_popup > delay).
|
||
*/
|
||
if (!activated_submenu &&
|
||
(usec_since_popup == 0 ||
|
||
usec_since_popup > MENU_POPDOWN_DELAY * 1000))
|
||
{
|
||
_gtk_menu_item_popdown_submenu (menu_item);
|
||
}
|
||
else
|
||
{
|
||
gtk_menu_item_select (GTK_MENU_ITEM (menu_item));
|
||
}
|
||
|
||
return;
|
||
}
|
||
}
|
||
|
||
gtk_menu_shell_deactivate_and_emit_done (gtk_menu_shell_get_toplevel_shell (menu_shell));
|
||
}
|
||
|
||
g_object_unref (event);
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_set_keyboard_mode (GtkMenuShell *menu_shell,
|
||
gboolean keyboard_mode)
|
||
{
|
||
menu_shell->priv->keyboard_mode = keyboard_mode;
|
||
}
|
||
|
||
gboolean
|
||
_gtk_menu_shell_get_keyboard_mode (GtkMenuShell *menu_shell)
|
||
{
|
||
return menu_shell->priv->keyboard_mode;
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShell *target;
|
||
gboolean found;
|
||
gboolean mnemonics_visible;
|
||
|
||
target = menu_shell;
|
||
found = FALSE;
|
||
while (target)
|
||
{
|
||
GtkMenuShellPrivate *priv = target->priv;
|
||
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (target));
|
||
|
||
/* The idea with keyboard mode is that once you start using
|
||
* the keyboard to navigate the menus, we show mnemonics
|
||
* until the menu navigation is over. To that end, we spread
|
||
* the keyboard mode upwards in the menu hierarchy here.
|
||
* Also see gtk_menu_popup, where we inherit it downwards.
|
||
*/
|
||
if (menu_shell->priv->keyboard_mode)
|
||
target->priv->keyboard_mode = TRUE;
|
||
|
||
/* While navigating menus, the first parent menu with an active
|
||
* item is the one where mnemonics are effective, as can be seen
|
||
* in gtk_menu_shell_key_press below.
|
||
* We also show mnemonics in context menus. The grab condition is
|
||
* necessary to ensure we remove underlines from menu bars when
|
||
* dismissing menus.
|
||
*/
|
||
mnemonics_visible = target->priv->keyboard_mode &&
|
||
(((target->priv->active_menu_item || priv->in_unselectable_item) && !found) ||
|
||
(target == menu_shell &&
|
||
!target->priv->parent_menu_shell &&
|
||
gtk_widget_has_grab (GTK_WIDGET (target))));
|
||
|
||
/* While menus are up, only show underlines inside the menubar,
|
||
* not in the entire window.
|
||
*/
|
||
if (GTK_IS_MENU_BAR (target))
|
||
{
|
||
gtk_window_set_mnemonics_visible (GTK_WINDOW (toplevel), FALSE);
|
||
_gtk_label_mnemonics_visible_apply_recursively (GTK_WIDGET (target),
|
||
mnemonics_visible);
|
||
}
|
||
else
|
||
gtk_window_set_mnemonics_visible (GTK_WINDOW (toplevel), mnemonics_visible);
|
||
|
||
if (target->priv->active_menu_item || priv->in_unselectable_item)
|
||
found = TRUE;
|
||
|
||
target = GTK_MENU_SHELL (target->priv->parent_menu_shell);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_shell_key_press (GtkEventControllerKey *key,
|
||
guint keyval,
|
||
guint keycode,
|
||
GdkModifierType modifiers,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
priv->keyboard_mode = TRUE;
|
||
|
||
if (!(priv->active_menu_item || priv->in_unselectable_item) &&
|
||
priv->parent_menu_shell)
|
||
return gtk_event_controller_key_forward (key, priv->parent_menu_shell);
|
||
|
||
return gtk_menu_shell_activate_mnemonic (menu_shell, keycode, modifiers,
|
||
gtk_event_controller_key_get_group (key));
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_root (GtkWidget *widget)
|
||
{
|
||
GTK_WIDGET_CLASS (gtk_menu_shell_parent_class)->root (widget);
|
||
|
||
gtk_menu_shell_reset_key_hash (GTK_MENU_SHELL (widget));
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_add (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
gtk_menu_shell_append (GTK_MENU_SHELL (container), widget);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_remove (GtkContainer *container,
|
||
GtkWidget *widget)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (container);
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
gint was_visible;
|
||
|
||
was_visible = gtk_widget_get_visible (widget);
|
||
priv->children = g_list_remove (priv->children, widget);
|
||
|
||
if (widget == priv->active_menu_item)
|
||
{
|
||
g_signal_emit_by_name (priv->active_menu_item, "deselect");
|
||
priv->active_menu_item = NULL;
|
||
}
|
||
|
||
gtk_widget_unparent (widget);
|
||
|
||
/* Queue resize regardless of gtk_widget_get_visible (container),
|
||
* since that's what is needed by toplevels.
|
||
*/
|
||
if (was_visible)
|
||
gtk_widget_queue_resize (GTK_WIDGET (container));
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_forall (GtkContainer *container,
|
||
GtkCallback callback,
|
||
gpointer callback_data)
|
||
{
|
||
GtkMenuShell *menu_shell = GTK_MENU_SHELL (container);
|
||
GtkWidget *child;
|
||
GList *children;
|
||
|
||
children = menu_shell->priv->children;
|
||
while (children)
|
||
{
|
||
child = children->data;
|
||
children = children->next;
|
||
|
||
(* callback) (child, callback_data);
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->active)
|
||
{
|
||
priv->button = 0;
|
||
priv->active = FALSE;
|
||
priv->activate_time = 0;
|
||
|
||
if (priv->active_menu_item)
|
||
{
|
||
gtk_menu_item_deselect (GTK_MENU_ITEM (priv->active_menu_item));
|
||
priv->active_menu_item = NULL;
|
||
}
|
||
|
||
if (priv->have_grab)
|
||
{
|
||
priv->have_grab = FALSE;
|
||
gtk_grab_remove (GTK_WIDGET (menu_shell));
|
||
}
|
||
if (priv->have_xgrab)
|
||
{
|
||
gdk_seat_ungrab (gdk_device_get_seat (priv->grab_pointer));
|
||
priv->have_xgrab = FALSE;
|
||
}
|
||
|
||
priv->keyboard_mode = FALSE;
|
||
_gtk_menu_shell_set_grab_device (menu_shell, NULL);
|
||
|
||
_gtk_menu_shell_update_mnemonics (menu_shell);
|
||
}
|
||
}
|
||
|
||
/* Handlers for action signals */
|
||
|
||
/**
|
||
* gtk_menu_shell_select_item:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @menu_item: The #GtkMenuItem to select
|
||
*
|
||
* Selects the menu item from the menu shell.
|
||
*/
|
||
void
|
||
gtk_menu_shell_select_item (GtkMenuShell *menu_shell,
|
||
GtkWidget *menu_item)
|
||
{
|
||
GtkMenuShellPrivate *priv;
|
||
GtkMenuShellClass *class;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
|
||
|
||
priv = menu_shell->priv;
|
||
class = GTK_MENU_SHELL_GET_CLASS (menu_shell);
|
||
|
||
if (class->select_item &&
|
||
!(priv->active &&
|
||
priv->active_menu_item == menu_item))
|
||
class->select_item (menu_shell, menu_item);
|
||
}
|
||
|
||
void _gtk_menu_item_set_placement (GtkMenuItem *menu_item,
|
||
GtkSubmenuPlacement placement);
|
||
|
||
static void
|
||
gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell,
|
||
GtkWidget *menu_item)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->active_menu_item)
|
||
{
|
||
gtk_menu_item_deselect (GTK_MENU_ITEM (priv->active_menu_item));
|
||
priv->active_menu_item = NULL;
|
||
}
|
||
|
||
if (!_gtk_menu_item_is_selectable (menu_item))
|
||
{
|
||
priv->in_unselectable_item = TRUE;
|
||
_gtk_menu_shell_update_mnemonics (menu_shell);
|
||
return;
|
||
}
|
||
|
||
gtk_menu_shell_activate (menu_shell);
|
||
|
||
priv->active_menu_item = menu_item;
|
||
_gtk_menu_item_set_placement (GTK_MENU_ITEM (priv->active_menu_item),
|
||
GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement);
|
||
gtk_menu_item_select (GTK_MENU_ITEM (priv->active_menu_item));
|
||
|
||
_gtk_menu_shell_update_mnemonics (menu_shell);
|
||
|
||
/* This allows the bizarre radio buttons-with-submenus-display-history
|
||
* behavior
|
||
*/
|
||
if (GTK_MENU_ITEM (priv->active_menu_item)->priv->submenu)
|
||
gtk_widget_activate (priv->active_menu_item);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_deselect:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Deselects the currently selected item from the menu shell,
|
||
* if any.
|
||
*/
|
||
void
|
||
gtk_menu_shell_deselect (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
|
||
priv = menu_shell->priv;
|
||
|
||
if (priv->active_menu_item)
|
||
{
|
||
gtk_menu_item_deselect (GTK_MENU_ITEM (priv->active_menu_item));
|
||
priv->active_menu_item = NULL;
|
||
_gtk_menu_shell_update_mnemonics (menu_shell);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_activate_item:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @menu_item: the #GtkMenuItem to activate
|
||
* @force_deactivate: if %TRUE, force the deactivation of the
|
||
* menu shell after the menu item is activated
|
||
*
|
||
* Activates the menu item within the menu shell.
|
||
*/
|
||
void
|
||
gtk_menu_shell_activate_item (GtkMenuShell *menu_shell,
|
||
GtkWidget *menu_item,
|
||
gboolean force_deactivate)
|
||
{
|
||
GSList *slist, *shells = NULL;
|
||
gboolean deactivate = force_deactivate;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
|
||
|
||
if (!deactivate)
|
||
deactivate = GTK_MENU_ITEM_GET_CLASS (menu_item)->hide_on_activate;
|
||
|
||
g_object_ref (menu_shell);
|
||
g_object_ref (menu_item);
|
||
|
||
if (deactivate)
|
||
{
|
||
GtkMenuShell *parent_menu_shell = menu_shell;
|
||
|
||
do
|
||
{
|
||
parent_menu_shell->priv->selection_done_coming_soon = TRUE;
|
||
|
||
g_object_ref (parent_menu_shell);
|
||
shells = g_slist_prepend (shells, parent_menu_shell);
|
||
parent_menu_shell = (GtkMenuShell*) parent_menu_shell->priv->parent_menu_shell;
|
||
}
|
||
while (parent_menu_shell);
|
||
shells = g_slist_reverse (shells);
|
||
|
||
gtk_menu_shell_deactivate (menu_shell);
|
||
|
||
/* Flush the x-queue, so any grabs are removed and
|
||
* the menu is actually taken down
|
||
*/
|
||
gdk_display_sync (gtk_widget_get_display (menu_item));
|
||
}
|
||
|
||
gtk_widget_activate (menu_item);
|
||
|
||
for (slist = shells; slist; slist = slist->next)
|
||
{
|
||
GtkMenuShell *parent_menu_shell = slist->data;
|
||
|
||
g_signal_emit (parent_menu_shell, menu_shell_signals[SELECTION_DONE], 0);
|
||
parent_menu_shell->priv->selection_done_coming_soon = FALSE;
|
||
g_object_unref (slist->data);
|
||
}
|
||
g_slist_free (shells);
|
||
|
||
g_object_unref (menu_shell);
|
||
g_object_unref (menu_item);
|
||
}
|
||
|
||
/* Distance should be +/- 1 */
|
||
static gboolean
|
||
gtk_menu_shell_real_move_selected (GtkMenuShell *menu_shell,
|
||
gint distance)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->active_menu_item)
|
||
{
|
||
GList *node = g_list_find (priv->children, priv->active_menu_item);
|
||
GList *start_node = node;
|
||
|
||
if (distance > 0)
|
||
{
|
||
node = node->next;
|
||
while (node != start_node &&
|
||
(!node || !_gtk_menu_item_is_selectable (node->data)))
|
||
{
|
||
if (node)
|
||
node = node->next;
|
||
else
|
||
node = priv->children;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
node = node->prev;
|
||
while (node != start_node &&
|
||
(!node || !_gtk_menu_item_is_selectable (node->data)))
|
||
{
|
||
if (node)
|
||
node = node->prev;
|
||
else
|
||
node = g_list_last (priv->children);
|
||
}
|
||
}
|
||
|
||
if (node)
|
||
gtk_menu_shell_select_item (menu_shell, node->data);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Distance should be +/- 1 */
|
||
static void
|
||
gtk_menu_shell_move_selected (GtkMenuShell *menu_shell,
|
||
gint distance)
|
||
{
|
||
gboolean handled = FALSE;
|
||
|
||
g_signal_emit (menu_shell, menu_shell_signals[MOVE_SELECTED], 0,
|
||
distance, &handled);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_select_first:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @search_sensitive: if %TRUE, search for the first selectable
|
||
* menu item, otherwise select nothing if
|
||
* the first item isn’t sensitive. This
|
||
* should be %FALSE if the menu is being
|
||
* popped up initially.
|
||
*
|
||
* Select the first visible or selectable child of the menu shell.
|
||
*/
|
||
void
|
||
gtk_menu_shell_select_first (GtkMenuShell *menu_shell,
|
||
gboolean search_sensitive)
|
||
{
|
||
GtkMenuShellPrivate *priv;
|
||
GList *tmp_list;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
|
||
priv = menu_shell->priv;
|
||
|
||
tmp_list = priv->children;
|
||
while (tmp_list)
|
||
{
|
||
GtkWidget *child = tmp_list->data;
|
||
|
||
if ((!search_sensitive && gtk_widget_get_visible (child)) ||
|
||
_gtk_menu_item_is_selectable (child))
|
||
{
|
||
gtk_menu_shell_select_item (menu_shell, child);
|
||
return;
|
||
}
|
||
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_select_last (GtkMenuShell *menu_shell,
|
||
gboolean search_sensitive)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GList *tmp_list;
|
||
|
||
tmp_list = g_list_last (priv->children);
|
||
while (tmp_list)
|
||
{
|
||
GtkWidget *child = tmp_list->data;
|
||
|
||
if ((!search_sensitive && gtk_widget_get_visible (child)) ||
|
||
_gtk_menu_item_is_selectable (child))
|
||
{
|
||
gtk_menu_shell_select_item (menu_shell, child);
|
||
return;
|
||
}
|
||
|
||
tmp_list = tmp_list->prev;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_shell_select_submenu_first (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GtkMenuItem *menu_item;
|
||
|
||
if (priv->active_menu_item == NULL)
|
||
return FALSE;
|
||
|
||
menu_item = GTK_MENU_ITEM (priv->active_menu_item);
|
||
|
||
if (menu_item->priv->submenu)
|
||
{
|
||
_gtk_menu_item_popup_submenu (GTK_WIDGET (menu_item), FALSE);
|
||
gtk_menu_shell_select_first (GTK_MENU_SHELL (menu_item->priv->submenu), TRUE);
|
||
if (GTK_MENU_SHELL (menu_item->priv->submenu)->priv->active_menu_item)
|
||
return TRUE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/* Moves the current menu item in direction 'direction':
|
||
*
|
||
* - GTK_MENU_DIR_PARENT: To the parent menu shell
|
||
* - GTK_MENU_DIR_CHILD: To the child menu shell (if this item has a submenu).
|
||
* - GTK_MENU_DIR_NEXT/PREV: To the next or previous item in this menu.
|
||
*
|
||
* As a bit of a hack to get movement between menus and
|
||
* menubars working, if submenu_placement is different for
|
||
* the menu and its MenuShell then the following apply:
|
||
*
|
||
* - For “parent” the current menu is not just moved to
|
||
* the parent, but moved to the previous entry in the parent
|
||
* - For 'child', if there is no child, then current is
|
||
* moved to the next item in the parent.
|
||
*
|
||
* Note that the above explanation of ::move_current was written
|
||
* before menus and menubars had support for RTL flipping and
|
||
* different packing directions, and therefore only applies for
|
||
* when text direction and packing direction are both left-to-right.
|
||
*/
|
||
static void
|
||
gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
|
||
GtkMenuDirectionType direction)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GtkMenuShell *parent_menu_shell = NULL;
|
||
gboolean had_selection;
|
||
|
||
priv->in_unselectable_item = FALSE;
|
||
|
||
had_selection = priv->active_menu_item != NULL;
|
||
|
||
if (priv->parent_menu_shell)
|
||
parent_menu_shell = GTK_MENU_SHELL (priv->parent_menu_shell);
|
||
|
||
switch (direction)
|
||
{
|
||
case GTK_MENU_DIR_PARENT:
|
||
if (parent_menu_shell)
|
||
{
|
||
if (GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement ==
|
||
GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement)
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
else
|
||
{
|
||
gtk_menu_shell_move_selected (parent_menu_shell, -1);
|
||
gtk_menu_shell_select_submenu_first (parent_menu_shell);
|
||
}
|
||
}
|
||
/* If there is no parent and the submenu is in the opposite direction
|
||
* to the menu, then make the PARENT direction wrap around to
|
||
* the bottom of the submenu.
|
||
*/
|
||
else if (priv->active_menu_item &&
|
||
_gtk_menu_item_is_selectable (priv->active_menu_item) &&
|
||
GTK_MENU_ITEM (priv->active_menu_item)->priv->submenu)
|
||
{
|
||
GtkMenuShell *submenu = GTK_MENU_SHELL (GTK_MENU_ITEM (priv->active_menu_item)->priv->submenu);
|
||
|
||
if (GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement !=
|
||
GTK_MENU_SHELL_GET_CLASS (submenu)->submenu_placement)
|
||
_gtk_menu_shell_select_last (submenu, TRUE);
|
||
}
|
||
break;
|
||
|
||
case GTK_MENU_DIR_CHILD:
|
||
if (priv->active_menu_item &&
|
||
_gtk_menu_item_is_selectable (priv->active_menu_item) &&
|
||
GTK_MENU_ITEM (priv->active_menu_item)->priv->submenu)
|
||
{
|
||
if (gtk_menu_shell_select_submenu_first (menu_shell))
|
||
break;
|
||
}
|
||
|
||
/* Try to find a menu running the opposite direction */
|
||
while (parent_menu_shell &&
|
||
(GTK_MENU_SHELL_GET_CLASS (parent_menu_shell)->submenu_placement ==
|
||
GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement))
|
||
{
|
||
parent_menu_shell = GTK_MENU_SHELL (parent_menu_shell->priv->parent_menu_shell);
|
||
}
|
||
|
||
if (parent_menu_shell)
|
||
{
|
||
gtk_menu_shell_move_selected (parent_menu_shell, 1);
|
||
|
||
gtk_menu_shell_select_submenu_first (parent_menu_shell);
|
||
}
|
||
break;
|
||
|
||
case GTK_MENU_DIR_PREV:
|
||
gtk_menu_shell_move_selected (menu_shell, -1);
|
||
if (!had_selection && !priv->active_menu_item && priv->children)
|
||
_gtk_menu_shell_select_last (menu_shell, TRUE);
|
||
break;
|
||
|
||
case GTK_MENU_DIR_NEXT:
|
||
gtk_menu_shell_move_selected (menu_shell, 1);
|
||
if (!had_selection && !priv->active_menu_item && priv->children)
|
||
gtk_menu_shell_select_first (menu_shell, TRUE);
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Activate the current item. If 'force_hide' is true, hide
|
||
* the current menu item always. Otherwise, only hide
|
||
* it if menu_item->klass->hide_on_activate is true.
|
||
*/
|
||
static void
|
||
gtk_real_menu_shell_activate_current (GtkMenuShell *menu_shell,
|
||
gboolean force_hide)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->active_menu_item &&
|
||
_gtk_menu_item_is_selectable (priv->active_menu_item))
|
||
{
|
||
if (GTK_MENU_ITEM (priv->active_menu_item)->priv->submenu == NULL)
|
||
gtk_menu_shell_activate_item (menu_shell,
|
||
priv->active_menu_item,
|
||
force_hide);
|
||
else
|
||
gtk_menu_shell_select_submenu_first (menu_shell);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_real_menu_shell_cancel (GtkMenuShell *menu_shell)
|
||
{
|
||
/* Unset the active menu item so gtk_menu_popdown() doesn't see it. */
|
||
gtk_menu_shell_deselect (menu_shell);
|
||
gtk_menu_shell_deactivate (menu_shell);
|
||
g_signal_emit (menu_shell, menu_shell_signals[SELECTION_DONE], 0);
|
||
}
|
||
|
||
static void
|
||
gtk_real_menu_shell_cycle_focus (GtkMenuShell *menu_shell,
|
||
GtkDirectionType dir)
|
||
{
|
||
while (menu_shell && !GTK_IS_MENU_BAR (menu_shell))
|
||
{
|
||
if (menu_shell->priv->parent_menu_shell)
|
||
menu_shell = GTK_MENU_SHELL (menu_shell->priv->parent_menu_shell);
|
||
else
|
||
menu_shell = NULL;
|
||
}
|
||
|
||
if (menu_shell)
|
||
_gtk_menu_bar_cycle_focus (GTK_MENU_BAR (menu_shell), dir);
|
||
}
|
||
|
||
gint
|
||
_gtk_menu_shell_get_popup_delay (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellClass *klass = GTK_MENU_SHELL_GET_CLASS (menu_shell);
|
||
|
||
if (klass->get_popup_delay)
|
||
{
|
||
return klass->get_popup_delay (menu_shell);
|
||
}
|
||
else
|
||
{
|
||
return MENU_POPUP_DELAY;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_cancel:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Cancels the selection within the menu shell.
|
||
*/
|
||
void
|
||
gtk_menu_shell_cancel (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
|
||
g_signal_emit (menu_shell, menu_shell_signals[CANCEL], 0);
|
||
}
|
||
|
||
static GtkMnemonicHash *
|
||
gtk_menu_shell_get_mnemonic_hash (GtkMenuShell *menu_shell,
|
||
gboolean create)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (!priv->mnemonic_hash && create)
|
||
priv->mnemonic_hash = _gtk_mnemonic_hash_new ();
|
||
|
||
return priv->mnemonic_hash;
|
||
}
|
||
|
||
static void
|
||
menu_shell_add_mnemonic_foreach (guint keyval,
|
||
GSList *targets,
|
||
gpointer data)
|
||
{
|
||
GtkKeyHash *key_hash = data;
|
||
|
||
_gtk_key_hash_add_entry (key_hash, keyval, 0, GUINT_TO_POINTER (keyval));
|
||
}
|
||
|
||
static GtkKeyHash *
|
||
gtk_menu_shell_get_key_hash (GtkMenuShell *menu_shell,
|
||
gboolean create)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
GtkWidget *widget = GTK_WIDGET (menu_shell);
|
||
|
||
if (!priv->key_hash && create)
|
||
{
|
||
GtkMnemonicHash *mnemonic_hash = gtk_menu_shell_get_mnemonic_hash (menu_shell, FALSE);
|
||
GdkKeymap *keymap = gdk_display_get_keymap (gtk_widget_get_display (widget));
|
||
|
||
if (!mnemonic_hash)
|
||
return NULL;
|
||
|
||
priv->key_hash = _gtk_key_hash_new (keymap, NULL);
|
||
|
||
_gtk_mnemonic_hash_foreach (mnemonic_hash,
|
||
menu_shell_add_mnemonic_foreach,
|
||
priv->key_hash);
|
||
}
|
||
|
||
return priv->key_hash;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_reset_key_hash (GtkMenuShell *menu_shell)
|
||
{
|
||
GtkMenuShellPrivate *priv = menu_shell->priv;
|
||
|
||
if (priv->key_hash)
|
||
{
|
||
_gtk_key_hash_free (priv->key_hash);
|
||
priv->key_hash = NULL;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gtk_menu_shell_activate_mnemonic (GtkMenuShell *menu_shell,
|
||
guint keycode,
|
||
GdkModifierType state,
|
||
guint group)
|
||
{
|
||
GtkMnemonicHash *mnemonic_hash;
|
||
GtkKeyHash *key_hash;
|
||
GSList *entries;
|
||
gboolean result = FALSE;
|
||
|
||
mnemonic_hash = gtk_menu_shell_get_mnemonic_hash (menu_shell, FALSE);
|
||
if (!mnemonic_hash)
|
||
return FALSE;
|
||
|
||
key_hash = gtk_menu_shell_get_key_hash (menu_shell, TRUE);
|
||
if (!key_hash)
|
||
return FALSE;
|
||
|
||
entries = _gtk_key_hash_lookup (key_hash,
|
||
keycode,
|
||
state,
|
||
gtk_accelerator_get_default_mod_mask (),
|
||
group);
|
||
|
||
if (entries)
|
||
{
|
||
result = _gtk_mnemonic_hash_activate (mnemonic_hash,
|
||
GPOINTER_TO_UINT (entries->data));
|
||
g_slist_free (entries);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_add_mnemonic (GtkMenuShell *menu_shell,
|
||
guint keyval,
|
||
GtkWidget *target)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (GTK_IS_WIDGET (target));
|
||
|
||
_gtk_mnemonic_hash_add (gtk_menu_shell_get_mnemonic_hash (menu_shell, TRUE),
|
||
keyval, target);
|
||
gtk_menu_shell_reset_key_hash (menu_shell);
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_remove_mnemonic (GtkMenuShell *menu_shell,
|
||
guint keyval,
|
||
GtkWidget *target)
|
||
{
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (GTK_IS_WIDGET (target));
|
||
|
||
_gtk_mnemonic_hash_remove (gtk_menu_shell_get_mnemonic_hash (menu_shell, TRUE),
|
||
keyval, target);
|
||
gtk_menu_shell_reset_key_hash (menu_shell);
|
||
}
|
||
|
||
void
|
||
_gtk_menu_shell_set_grab_device (GtkMenuShell *menu_shell,
|
||
GdkDevice *device)
|
||
{
|
||
GtkMenuShellPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (device == NULL || GDK_IS_DEVICE (device));
|
||
|
||
priv = menu_shell->priv;
|
||
|
||
if (!device)
|
||
priv->grab_pointer = NULL;
|
||
else if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
|
||
priv->grab_pointer = gdk_device_get_associated_device (device);
|
||
else
|
||
priv->grab_pointer = device;
|
||
}
|
||
|
||
GdkDevice *
|
||
_gtk_menu_shell_get_grab_device (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), NULL);
|
||
|
||
return menu_shell->priv->grab_pointer;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_get_take_focus:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Returns %TRUE if the menu shell will take the keyboard focus on popup.
|
||
*
|
||
* Returns: %TRUE if the menu shell will take the keyboard focus on popup.
|
||
*/
|
||
gboolean
|
||
gtk_menu_shell_get_take_focus (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), FALSE);
|
||
|
||
return menu_shell->priv->take_focus;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_set_take_focus:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @take_focus: %TRUE if the menu shell should take the keyboard
|
||
* focus on popup
|
||
*
|
||
* If @take_focus is %TRUE (the default) the menu shell will take
|
||
* the keyboard focus so that it will receive all keyboard events
|
||
* which is needed to enable keyboard navigation in menus.
|
||
*
|
||
* Setting @take_focus to %FALSE is useful only for special applications
|
||
* like virtual keyboard implementations which should not take keyboard
|
||
* focus.
|
||
*
|
||
* The @take_focus state of a menu or menu bar is automatically
|
||
* propagated to submenus whenever a submenu is popped up, so you
|
||
* don’t have to worry about recursively setting it for your entire
|
||
* menu hierarchy. Only when programmatically picking a submenu and
|
||
* popping it up manually, the @take_focus property of the submenu
|
||
* needs to be set explicitly.
|
||
*
|
||
* Note that setting it to %FALSE has side-effects:
|
||
*
|
||
* If the focus is in some other app, it keeps the focus and keynav in
|
||
* the menu doesn’t work. Consequently, keynav on the menu will only
|
||
* work if the focus is on some toplevel owned by the onscreen keyboard.
|
||
*
|
||
* To avoid confusing the user, menus with @take_focus set to %FALSE
|
||
* should not display mnemonics or accelerators, since it cannot be
|
||
* guaranteed that they will work.
|
||
*/
|
||
void
|
||
gtk_menu_shell_set_take_focus (GtkMenuShell *menu_shell,
|
||
gboolean take_focus)
|
||
{
|
||
GtkMenuShellPrivate *priv;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
|
||
priv = menu_shell->priv;
|
||
|
||
take_focus = !!take_focus;
|
||
if (priv->take_focus != take_focus)
|
||
{
|
||
priv->take_focus = take_focus;
|
||
g_object_notify (G_OBJECT (menu_shell), "take-focus");
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_get_selected_item:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Gets the currently selected item.
|
||
*
|
||
* Returns: (transfer none): the currently selected item
|
||
*/
|
||
GtkWidget *
|
||
gtk_menu_shell_get_selected_item (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), NULL);
|
||
|
||
return menu_shell->priv->active_menu_item;
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_get_parent_shell:
|
||
* @menu_shell: a #GtkMenuShell
|
||
*
|
||
* Gets the parent menu shell.
|
||
*
|
||
* The parent menu shell of a submenu is the #GtkMenu or #GtkMenuBar
|
||
* from which it was opened up.
|
||
*
|
||
* Returns: (transfer none): the parent #GtkMenuShell
|
||
*/
|
||
GtkWidget *
|
||
gtk_menu_shell_get_parent_shell (GtkMenuShell *menu_shell)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_MENU_SHELL (menu_shell), NULL);
|
||
|
||
return menu_shell->priv->parent_menu_shell;
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_item_activate (GtkMenuItem *menuitem,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuTrackerItem *item = user_data;
|
||
|
||
gtk_menu_tracker_item_activated (item);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_submenu_shown (GtkWidget *submenu,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuTrackerItem *item = user_data;
|
||
|
||
gtk_menu_tracker_item_request_submenu_shown (item, TRUE);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_submenu_hidden (GtkWidget *submenu,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuTrackerItem *item = user_data;
|
||
|
||
if (!GTK_MENU_SHELL (submenu)->priv->selection_done_coming_soon)
|
||
gtk_menu_tracker_item_request_submenu_shown (item, FALSE);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_submenu_selection_done (GtkWidget *submenu,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuTrackerItem *item = user_data;
|
||
|
||
if (GTK_MENU_SHELL (submenu)->priv->selection_done_coming_soon)
|
||
gtk_menu_tracker_item_request_submenu_shown (item, FALSE);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_tracker_remove_func (gint position,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuShell *menu_shell = user_data;
|
||
GtkWidget *child;
|
||
|
||
child = g_list_nth_data (menu_shell->priv->children, position);
|
||
/* We use destroy here because in the case of an item with a submenu,
|
||
* the attached-to from the submenu holds a ref on the item and a
|
||
* simple gtk_container_remove() isn't good enough to break that.
|
||
*/
|
||
gtk_widget_destroy (child);
|
||
}
|
||
|
||
static void
|
||
gtk_menu_shell_tracker_insert_func (GtkMenuTrackerItem *item,
|
||
gint position,
|
||
gpointer user_data)
|
||
{
|
||
GtkMenuShell *menu_shell = user_data;
|
||
GtkWidget *widget;
|
||
|
||
if (gtk_menu_tracker_item_get_is_separator (item))
|
||
{
|
||
const gchar *label;
|
||
|
||
widget = gtk_separator_menu_item_new ();
|
||
|
||
/* For separators, we may have a section heading, so check the
|
||
* "label" property.
|
||
*
|
||
* Note: we only do this once, and we only do it if the label is
|
||
* non-NULL because even setting a NULL label on the separator
|
||
* will be enough to create a GtkLabel and add it, changing the
|
||
* appearance in the process.
|
||
*/
|
||
|
||
label = gtk_menu_tracker_item_get_label (item);
|
||
if (label)
|
||
gtk_menu_item_set_label (GTK_MENU_ITEM (widget), label);
|
||
}
|
||
else if (gtk_menu_tracker_item_get_has_link (item, G_MENU_LINK_SUBMENU))
|
||
{
|
||
GtkMenuShell *submenu;
|
||
|
||
widget = gtk_model_menu_item_new ();
|
||
g_object_bind_property (item, "label", widget, "text", G_BINDING_SYNC_CREATE);
|
||
|
||
submenu = GTK_MENU_SHELL (gtk_menu_new ());
|
||
gtk_widget_hide (GTK_WIDGET (submenu));
|
||
|
||
/* We recurse directly here: we could use an idle instead to
|
||
* prevent arbitrary recursion depth. We could also do it
|
||
* lazy...
|
||
*/
|
||
submenu->priv->tracker = gtk_menu_tracker_new_for_item_link (item,
|
||
G_MENU_LINK_SUBMENU, TRUE, FALSE,
|
||
gtk_menu_shell_tracker_insert_func,
|
||
gtk_menu_shell_tracker_remove_func,
|
||
submenu);
|
||
gtk_menu_item_set_submenu (GTK_MENU_ITEM (widget), GTK_WIDGET (submenu));
|
||
|
||
if (gtk_menu_tracker_item_get_should_request_show (item))
|
||
{
|
||
/* We don't request show in the strictest sense of the
|
||
* word: we just notify when we are showing and don't
|
||
* bother waiting for the reply.
|
||
*
|
||
* This could be fixed one day, but it would be slightly
|
||
* complicated and would have a strange interaction with
|
||
* the submenu pop-up delay.
|
||
*
|
||
* Note: 'item' is already kept alive from above.
|
||
*/
|
||
g_signal_connect (submenu, "show", G_CALLBACK (gtk_menu_shell_submenu_shown), item);
|
||
g_signal_connect (submenu, "hide", G_CALLBACK (gtk_menu_shell_submenu_hidden), item);
|
||
g_signal_connect (submenu, "selection-done", G_CALLBACK (gtk_menu_shell_submenu_selection_done), item);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
widget = gtk_model_menu_item_new ();
|
||
|
||
/* We bind to "text" instead of "label" because GtkModelMenuItem
|
||
* uses this property (along with "icon") to control its child
|
||
* widget. Once this is merged into GtkMenuItem we can go back to
|
||
* using "label".
|
||
*/
|
||
g_object_bind_property (item, "label", widget, "text", G_BINDING_SYNC_CREATE);
|
||
g_object_bind_property (item, "icon", widget, "icon", G_BINDING_SYNC_CREATE);
|
||
g_object_bind_property (item, "sensitive", widget, "sensitive", G_BINDING_SYNC_CREATE);
|
||
g_object_bind_property (item, "role", widget, "action-role", G_BINDING_SYNC_CREATE);
|
||
g_object_bind_property (item, "toggled", widget, "toggled", G_BINDING_SYNC_CREATE);
|
||
g_object_bind_property (item, "accel", widget, "accel", G_BINDING_SYNC_CREATE);
|
||
|
||
g_signal_connect (widget, "activate", G_CALLBACK (gtk_menu_shell_item_activate), item);
|
||
gtk_widget_show (widget);
|
||
}
|
||
|
||
/* TODO: drop this when we have bindings that ref the source */
|
||
g_object_set_data_full (G_OBJECT (widget), "GtkMenuTrackerItem", g_object_ref (item), g_object_unref);
|
||
|
||
gtk_menu_shell_insert (menu_shell, widget, position);
|
||
}
|
||
|
||
/**
|
||
* gtk_menu_shell_bind_model:
|
||
* @menu_shell: a #GtkMenuShell
|
||
* @model: (allow-none): the #GMenuModel to bind to or %NULL to remove
|
||
* binding
|
||
* @action_namespace: (allow-none): the namespace for actions in @model
|
||
* @with_separators: %TRUE if toplevel items in @shell should have
|
||
* separators between them
|
||
*
|
||
* Establishes a binding between a #GtkMenuShell and a #GMenuModel.
|
||
*
|
||
* The contents of @shell are removed and then refilled with menu items
|
||
* according to @model. When @model changes, @shell is updated.
|
||
* Calling this function twice on @shell with different @model will
|
||
* cause the first binding to be replaced with a binding to the new
|
||
* model. If @model is %NULL then any previous binding is undone and
|
||
* all children are removed.
|
||
*
|
||
* @with_separators determines if toplevel items (eg: sections) have
|
||
* separators inserted between them. This is typically desired for
|
||
* menus but doesn’t make sense for menubars.
|
||
*
|
||
* If @action_namespace is non-%NULL then the effect is as if all
|
||
* actions mentioned in the @model have their names prefixed with the
|
||
* namespace, plus a dot. For example, if the action “quit” is
|
||
* mentioned and @action_namespace is “app” then the effective action
|
||
* name is “app.quit”.
|
||
*
|
||
* This function uses #GtkActionable to define the action name and
|
||
* target values on the created menu items. If you want to use an
|
||
* action group other than “app” and “win”, or if you want to use a
|
||
* #GtkMenuShell outside of a #GtkApplicationWindow, then you will need
|
||
* to attach your own action group to the widget hierarchy using
|
||
* gtk_widget_insert_action_group(). As an example, if you created a
|
||
* group with a “quit” action and inserted it with the name “mygroup”
|
||
* then you would use the action name “mygroup.quit” in your
|
||
* #GMenuModel.
|
||
*
|
||
* For most cases you are probably better off using
|
||
* gtk_menu_new_from_model() or gtk_menu_bar_new_from_model() or just
|
||
* directly passing the #GMenuModel to gtk_application_set_app_menu() or
|
||
* gtk_application_set_menubar().
|
||
*/
|
||
void
|
||
gtk_menu_shell_bind_model (GtkMenuShell *menu_shell,
|
||
GMenuModel *model,
|
||
const gchar *action_namespace,
|
||
gboolean with_separators)
|
||
{
|
||
GtkActionMuxer *muxer;
|
||
|
||
g_return_if_fail (GTK_IS_MENU_SHELL (menu_shell));
|
||
g_return_if_fail (model == NULL || G_IS_MENU_MODEL (model));
|
||
|
||
muxer = _gtk_widget_get_action_muxer (GTK_WIDGET (menu_shell), TRUE);
|
||
|
||
g_clear_pointer (&menu_shell->priv->tracker, gtk_menu_tracker_free);
|
||
|
||
while (menu_shell->priv->children)
|
||
gtk_container_remove (GTK_CONTAINER (menu_shell), menu_shell->priv->children->data);
|
||
|
||
if (model)
|
||
menu_shell->priv->tracker = gtk_menu_tracker_new (GTK_ACTION_OBSERVABLE (muxer), model,
|
||
with_separators, TRUE, FALSE, action_namespace,
|
||
gtk_menu_shell_tracker_insert_func,
|
||
gtk_menu_shell_tracker_remove_func,
|
||
menu_shell);
|
||
}
|