initial import

11 files changed, 1218 insertions, 0 deletions

diff --git a/module/appmenu.cc b/module/appmenu.cc
new file mode 100644
index 0000000..4902533
--- /dev/null
+++ b/module/appmenu.cc
@@ -0,0 +1,154 @@
+#include <gtk/gtk.h>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDebug>
+#include <QtGui/QMenuBar>
+
+#include "appmenu.h"
+
+AppMenu::AppMenu(QObject *parent)
+    : MenuProxy(parent), m_menu(0)
+
+{
+}
+
+AppMenu::~AppMenu()
+{
+	if (m_menu) {
+		gtk_widget_destroy(GTK_WIDGET(m_menu));
+	}
+}
+
+GtkMenu * AppMenu::getGtkMenu()
+{
+	if (!m_menu) {
+		m_menu = GTK_MENU(gtk_menu_new());
+		g_object_ref_sink(m_menu);
+		setTargetMenu(GTK_MENU_SHELL(m_menu));
+		addDefaultItems();
+	}
+	return m_menu;
+}
+
+GtkMenuItem * AppMenu::addAction(QAction* action)
+{
+	QAction::MenuRole role = detectRole(action);
+	if (role == QAction::NoRole)
+		return 0; // Item should not appear in appmenu
+
+	// If we just inserted a custom quit item, remove the default one.
+	if (role == QAction::QuitRole) {
+		removeAction(m_def_quit);
+	}
+
+	uint order = orderForRole(role);
+	QMap<uint, QAction*>::iterator it = m_actions.insert(order, action);
+
+	// Get the previous element
+	QAction *before = 0;
+	if (it != m_actions.begin()) {
+		--it;
+		before = it.value();
+	}
+
+	return MenuProxy::addAction(action, before, 0);
+}
+
+GtkMenuItem * AppMenu::addAction(QAction* action, QAction* before, QMenu* parent)
+{
+	if (parent) {
+		return MenuProxy::addAction(action, before, parent);
+	} else {
+		// Never add an action to the root menu here.
+		return 0;
+	}
+}
+
+void AppMenu::removeAction(QAction *action)
+{
+	if (getItemForAction(action)) {
+		MenuProxy::removeAction(action);
+		m_actions.remove(orderForRole(action->menuRole()), action);
+	}
+}
+
+void AppMenu::updateAction(QAction *action)
+{
+	GtkMenuItem *item = getItemForAction(action);
+
+	if (item) {
+		MenuProxy::updateAction(action);
+	} else {
+		QAction::MenuRole role = detectRole(action);
+		if (role != QAction::NoRole) {
+			// The item now has a role!
+			addAction(action);
+		}
+	}
+}
+
+void AppMenu::addDefaultItems()
+{
+	QAction *separator = new QAction(this);
+	separator->setSeparator(true);
+	m_actions.insert(15, separator);
+	MenuProxy::addAction(separator, 0, 0);
+
+	m_def_quit = new QAction(QIcon::fromTheme("application-exit"),
+	                         QMenuBar::tr("Quit"), this);
+	m_actions.insert(11, m_def_quit);
+	MenuProxy::addAction(m_def_quit, 0, 0);
+
+	connect(m_def_quit, SIGNAL(triggered()),
+	        QCoreApplication::instance(), SLOT(quit()));
+}
+
+uint AppMenu::orderForRole(QAction::MenuRole role)
+{
+	switch (role) {
+	case QAction::AboutRole:
+		return 50;
+	case QAction::AboutQtRole:
+		return 40;
+	case QAction::PreferencesRole:
+		return 30;
+	case QAction::ApplicationSpecificRole:
+		return 20;
+	case QAction::QuitRole:
+		return 10;
+	default:
+		return 0;
+	}
+}
+
+QAction::MenuRole AppMenu::detectRole(QAction *action)
+{
+	QAction::MenuRole role = action->menuRole();
+
+	if (action->isSeparator()) return QAction::NoRole;
+
+	if (role == QAction::TextHeuristicRole) {
+		QString t = action->text().toLower().remove('&');
+
+		QString aboutString = QMenuBar::tr("About").toLower();
+        if (t.startsWith(aboutString) || t.endsWith(aboutString)) {
+            if (t.indexOf(QRegExp(QString::fromLatin1("qt$"), Qt::CaseInsensitive)) == -1) {
+				return QAction::AboutRole;
+            } else {
+				return QAction::AboutQtRole;
+            }
+        } else if (t.startsWith(QMenuBar::tr("Config").toLower())
+                   || t.startsWith(QMenuBar::tr("Preference").toLower())
+                   || t.startsWith(QMenuBar::tr("Options").toLower())
+                   || t.startsWith(QMenuBar::tr("Setting").toLower())
+                   || t.startsWith(QMenuBar::tr("Setup").toLower())) {
+			return QAction::PreferencesRole;
+        } else if (t.startsWith(QMenuBar::tr("Quit").toLower())
+                   || t.startsWith(QMenuBar::tr("Exit").toLower())) {
+			return QAction::QuitRole;
+        }
+
+		return QAction::NoRole;
+	} else {
+		return role;
+	}
+}
diff --git a/module/appmenu.h b/module/appmenu.h
new file mode 100644
index 0000000..bc7171d
--- /dev/null
+++ b/module/appmenu.h
@@ -0,0 +1,32 @@
+#ifndef APPMENU_H
+#define APPMENU_H
+
+#include "menuproxy.h"
+
+class AppMenu : public MenuProxy
+{
+	Q_OBJECT
+
+public:
+	AppMenu(QObject *parent = 0);
+	~AppMenu();
+
+	GtkMenu * getGtkMenu();
+
+	GtkMenuItem * addAction(QAction *action);
+	GtkMenuItem * addAction(QAction* action, QAction* before, QMenu* parent);
+	void removeAction(QAction* action);
+	void updateAction(QAction* action);
+
+private:
+	void addDefaultItems();
+	static uint orderForRole(QAction::MenuRole role);
+	static QAction::MenuRole detectRole(QAction *action);
+
+private:
+	GtkMenu *m_menu;
+	QMultiMap<uint, QAction*> m_actions;
+	QAction *m_def_quit;
+};
+
+#endif // APPMENU_H
diff --git a/module/menuproxy.cc b/module/menuproxy.cc
new file mode 100644
index 0000000..5536bf5
--- /dev/null
+++ b/module/menuproxy.cc
@@ -0,0 +1,286 @@
+#include <gtk/gtk.h>
+#include <QtCore/QDebug>
+#include <QtGui/QActionEvent>
+
+#include "menuproxy.h"
+#include "qtkeysyms.h"
+
+static inline int index_of_menu_item(GtkMenuShell *shell, GtkMenuItem *item)
+{
+	return g_list_index(shell->children, item);
+}
+
+static inline GtkMenuItem * get_nth_menu_item(GtkMenuShell *shell, int i)
+{
+	return GTK_MENU_ITEM(g_list_nth_data(shell->children, i));
+}
+
+static bool transform_key_sequence(const QKeySequence &keys, guint *keyp, GdkModifierType *modsp)
+{
+	uint count = keys.count();
+	if (count != 1) return false; // TODO
+
+	guint mods = 0;
+	guint key = 0;
+
+	for (uint i = 0; i < count; i++) {
+		const uint qt_key = keys[i];
+		if (qt_key & Qt::CTRL)    mods |= GDK_CONTROL_MASK;
+		if (qt_key & Qt::ALT)     mods |= GDK_MOD1_MASK;
+		if (qt_key & Qt::SHIFT)   mods |= GDK_SHIFT_MASK;
+
+		key = qt_to_gdk_key(qt_key & ~Qt::MODIFIER_MASK);
+	}
+
+	*keyp = key;
+	*modsp = GdkModifierType(mods);
+
+	return true;
+}
+
+static void destroy_image_data(guchar *pixels, gpointer data)
+{
+	Q_UNUSED(data);
+	g_free(pixels);
+}
+
+MenuProxy::MenuProxy(QObject *parent)
+    : QObject(parent), m_target(0), m_accel(0)
+{
+}
+
+MenuProxy::~MenuProxy()
+{
+	Q_FOREACH(GtkMenu *menu, m_menus) {
+		gtk_widget_destroy(GTK_WIDGET(menu));
+	}
+	Q_FOREACH(GtkMenuItem *item, m_items) {
+		gtk_widget_destroy(GTK_WIDGET(item));
+	}
+	if (m_accel) {
+		g_object_unref(m_accel);
+		m_accel = 0;
+	}
+}
+
+void MenuProxy::setTargetMenu(GtkMenuShell *shell)
+{
+	m_target = shell;
+	if (!m_accel) {
+		m_accel = gtk_accel_group_new();
+	}
+}
+
+GtkMenuItem * MenuProxy::addAction(QAction* action, QAction* before, QMenu* parent)
+{
+	GtkMenuShell *g_parent;
+	if (parent) {
+		g_parent = GTK_MENU_SHELL(m_menus.value(parent));
+	} else {
+		g_parent = m_target;
+	}
+
+	GtkMenuItem *item;
+	if (action->isSeparator()) {
+		item = GTK_MENU_ITEM(gtk_separator_menu_item_new());
+	} else if (action->isCheckable()) {
+		QString label = transformMnemonic(action->text());
+		item = GTK_MENU_ITEM(gtk_check_menu_item_new_with_mnemonic(label.toUtf8().constData()));
+		if (action->actionGroup() && action->actionGroup()->isExclusive()) {
+			gtk_check_menu_item_set_draw_as_radio(GTK_CHECK_MENU_ITEM(item), TRUE);
+		}
+	} else {
+		QString label = transformMnemonic(action->text());
+		QIcon icon = action->icon();
+		if (!icon.isNull()) {
+			QImage image = icon.pixmap(16, 16).toImage().convertToFormat(QImage::Format_ARGB32).rgbSwapped();
+			gsize size = image.byteCount();
+			guchar *data = (guchar*) g_malloc(size);
+			memcpy(data, image.constBits(), size);
+			GdkPixbuf *pixbuf = gdk_pixbuf_new_from_data(data, GDK_COLORSPACE_RGB,
+			                                             image.hasAlphaChannel(), 8,
+			                                             image.width(), image.height(),
+			                                             image.bytesPerLine(),
+			                                             destroy_image_data, NULL);
+			item = GTK_MENU_ITEM(gtk_image_menu_item_new_with_mnemonic(label.toUtf8().constData()));
+			gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
+			                              gtk_image_new_from_pixbuf(pixbuf));
+			g_object_unref(pixbuf);
+		} else {
+			item = GTK_MENU_ITEM(gtk_menu_item_new_with_mnemonic(label.toUtf8().constData()));
+		}
+	}
+
+	m_items.insert(action, item);
+	g_object_ref_sink(item);
+
+	if (before) {
+		GtkMenuItem *g_before = m_items.value(before);
+		Q_ASSERT(g_before);
+		gint position = index_of_menu_item(g_parent, g_before);
+		gtk_menu_shell_insert(g_parent, GTK_WIDGET(item), position);
+	} else {
+		gtk_menu_shell_append(g_parent, GTK_WIDGET(item));
+	}
+
+	QMenu *menu = action->menu();
+	if (menu) {
+		GtkMenu * g_menu = addMenu(menu);
+		gtk_menu_item_set_submenu(item, GTK_WIDGET(g_menu));
+	}
+
+	updateAction(action);
+
+	return item;
+}
+
+GtkMenu * MenuProxy::addMenu(QMenu *menu)
+{
+	menu->installEventFilter(this);
+
+	GtkMenu *g_menu = GTK_MENU(gtk_menu_new());
+
+	m_menus.insert(menu, g_menu);
+	g_object_ref_sink(g_menu);
+
+	// Items might have been added already
+	foreach (QAction *action, menu->actions()) {
+		addAction(action, 0, menu);
+	}
+
+	return g_menu;
+}
+
+void MenuProxy::removeAction(QAction *action)
+{
+	QMenu* menu = action->menu();
+
+	if (menu) {
+		removeMenu(menu);
+	}
+
+	GtkMenuItem *item = m_items.value(action);
+	if (!item) {
+		return;
+	}
+
+	gtk_widget_destroy(GTK_WIDGET(item));
+	m_items.remove(action);
+}
+
+void MenuProxy::removeMenu(QMenu *menu)
+{
+	GtkMenu *g_menu = m_menus.value(menu);
+	Q_ASSERT(g_menu);
+	GtkWidget *g_item = gtk_menu_get_attach_widget(g_menu);
+	Q_ASSERT(g_item);
+	GtkMenu *g_parent = GTK_MENU(gtk_widget_get_parent(g_item));
+	Q_ASSERT(g_parent),
+
+	menu->removeEventFilter(this);
+
+	gtk_widget_destroy(GTK_WIDGET(g_menu));
+	m_menus.remove(menu);
+}
+
+void MenuProxy::updateAction(QAction *action)
+{
+	GtkMenuItem *item = m_items.value(action);
+	Q_ASSERT(item);
+
+	g_signal_handlers_disconnect_by_data(item, action);
+
+	if (action->isSeparator()) {
+		// TODO Decide visibility of separators using Qt rules.
+		gtk_widget_set_visible(GTK_WIDGET(item), action->isVisible());
+	} else {
+		QString label = action->text().replace(QChar('&'), QChar('_'));
+		gtk_menu_item_set_label(item, label.toUtf8().constData());
+
+		if (GTK_IS_CHECK_MENU_ITEM(item)) {
+			gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item),
+			                               action->isChecked());
+		}
+
+		GtkWidget *child = gtk_bin_get_child(GTK_BIN(item));
+		if (GTK_IS_ACCEL_LABEL(child)) {
+			Q_FOREACH(const QKeySequence& shortcut, action->shortcuts()) {
+				guint key;
+				GdkModifierType mods;
+				if (transform_key_sequence(shortcut, &key, &mods)) {
+					gtk_widget_add_accelerator(GTK_WIDGET(item), "activate", m_accel,
+											   key, mods,
+											   GTK_ACCEL_VISIBLE);
+				}
+			}
+		}
+
+		gtk_widget_set_sensitive(GTK_WIDGET(item), action->isEnabled());
+		gtk_widget_set_visible(GTK_WIDGET(item), action->isVisible());
+	}
+
+	g_signal_connect(item, "activate",
+	                 G_CALLBACK(handleMenuItemActivated), action);
+	g_signal_connect(item, "select",
+	                 G_CALLBACK(handleMenuItemSelected), action);
+	g_signal_connect(item, "deselect",
+	                 G_CALLBACK(handleMenuItemDeselected), action);
+}
+
+GtkMenuItem *MenuProxy::getItemForAction(QAction *action)
+{
+	return m_items.value(action, 0);
+}
+
+QString MenuProxy::transformMnemonic(const QString &text)
+{
+	QString s(text);
+	return s.replace(QChar('&'), QChar('_'));
+}
+
+bool MenuProxy::eventFilter(QObject* src, QEvent* event)
+{
+	QActionEvent *actionEvent;
+	switch (event->type()) {
+	case QEvent::ActionAdded:
+		actionEvent = static_cast<QActionEvent *>(event);
+		addAction(actionEvent->action(), actionEvent->before(), static_cast<QMenu*>(src));
+		break;
+	case QEvent::ActionRemoved:
+		actionEvent = static_cast<QActionEvent *>(event);
+		removeAction(actionEvent->action());
+		break;
+	case QEvent::ActionChanged:
+		actionEvent = static_cast<QActionEvent *>(event);
+		updateAction(actionEvent->action());
+		break;
+	default:
+		break;
+	}
+	return false;
+}
+
+void MenuProxy::handleMenuItemActivated(GtkMenuItem *item, QAction *action)
+{
+	Q_UNUSED(item);
+	action->activate(QAction::Trigger);
+}
+
+void MenuProxy::handleMenuItemSelected(GtkMenuItem *item, QAction *action)
+{
+	Q_UNUSED(item);
+	action->activate(QAction::Hover);
+	QMenu *submenu = action->menu();
+	if (submenu) {
+		QMetaObject::invokeMethod(submenu, "aboutToShow");
+	}
+}
+
+void MenuProxy::handleMenuItemDeselected(GtkMenuItem *item, QAction *action)
+{
+	Q_UNUSED(item);
+	QMenu *submenu = action->menu();
+	if (submenu) {
+		QMetaObject::invokeMethod(submenu, "aboutToHide");
+	}
+}
diff --git a/module/menuproxy.h b/module/menuproxy.h
new file mode 100644
index 0000000..6b968ed
--- /dev/null
+++ b/module/menuproxy.h
@@ -0,0 +1,48 @@
+#ifndef MENUPROXY_H
+#define MENUPROXY_H
+
+#include <QtGui/QAction>
+#include <QtGui/QMenu>
+#include <QtGui/QShortcut>
+
+typedef struct _GtkMenu               GtkMenu;
+typedef struct _GtkMenuShell          GtkMenuShell;
+typedef struct _GtkMenuItem           GtkMenuItem;
+typedef struct _GtkAccelGroup         GtkAccelGroup;
+
+class MenuProxy : public QObject
+{
+	Q_OBJECT
+
+public:
+	explicit MenuProxy(QObject *parent = 0);
+	~MenuProxy();
+
+	void setTargetMenu(GtkMenuShell *shell);
+
+public:
+	virtual GtkMenuItem * addAction(QAction* action, QAction* before, QMenu* parent);
+	virtual GtkMenu * addMenu(QMenu* menu);
+	virtual void removeAction(QAction* action);
+	virtual void removeMenu(QMenu* menu);
+	virtual void updateAction(QAction* action);
+
+	GtkMenuItem *getItemForAction(QAction *action);
+
+	static QString transformMnemonic(const QString &text);
+
+	bool eventFilter(QObject*, QEvent*);
+
+private:
+	static void handleMenuItemActivated(GtkMenuItem *item, QAction *action);
+	static void handleMenuItemSelected(GtkMenuItem *item, QAction *action);
+	static void handleMenuItemDeselected(GtkMenuItem *item, QAction *action);
+
+private:
+	GtkMenuShell *m_target;
+	QHash<QMenu*, GtkMenu*> m_menus;
+	QHash<QAction*, GtkMenuItem*> m_items;
+	GtkAccelGroup *m_accel;
+};
+
+#endif // MENUPROXY_H
diff --git a/module/module.pro b/module/module.pro
new file mode 100644
index 0000000..81a2d92
--- /dev/null
+++ b/module/module.pro
@@ -0,0 +1,24 @@
+TEMPLATE = lib
+TARGET = topmenu-qt4-module
+QT       += core gui
+CONFIG += plugin debug link_pkgconfig
+
+SOURCES += topmenumenubarimpl.cc \
+    topmenumenubarimplfactory.cc \
+    qtkeysyms.cc \
+    appmenu.cc \
+    menuproxy.cc
+HEADERS += topmenumenubarimpl.h \
+    topmenumenubarimplfactory.h \
+    qtkeysyms.h \
+    appmenu.h \
+    menuproxy.h
+
+LIBS += -ltopmenu-client
+PKGCONFIG += gtk+-2.0 gthread-2.0
+
+target.path += $$[QT_INSTALL_PLUGINS]/menubar
+INSTALLS += target
+
+QMAKE_STRIP = echo
+# Remove for release
diff --git a/module/qtkeysyms.cc b/module/qtkeysyms.cc
new file mode 100644
index 0000000..59f8f17
--- /dev/null
+++ b/module/qtkeysyms.cc
@@ -0,0 +1,313 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2006 TROLLTECH ASA. All rights reserved.
+**
+** This file is part of the Phone Edition of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <gdk/gdkkeysyms.h>
+#include <QtCore/qcoreevent.h>
+
+unsigned int qt_to_gdk_key(unsigned int qt_key) {
+	unsigned int keysym = 0;
+	switch (qt_key) {
+	case Qt::Key_Escape: keysym = GDK_KEY_Escape; break;
+	case Qt::Key_Tab: keysym = GDK_KEY_Tab; break;
+	case Qt::Key_Backtab: keysym = GDK_KEY_ISO_Left_Tab; break;
+	case Qt::Key_Backspace: keysym = GDK_KEY_BackSpace; break;
+	case Qt::Key_Return: keysym = GDK_KEY_Return; break;
+	case Qt::Key_Enter: keysym = GDK_KEY_KP_Enter; break;
+	case Qt::Key_Insert: keysym = GDK_KEY_KP_Insert; break;
+	case Qt::Key_Delete: keysym = GDK_KEY_KP_Delete; break;
+	case Qt::Key_Pause: keysym = GDK_KEY_Pause; break;
+	case Qt::Key_Print: keysym = GDK_KEY_Print; break;
+	case Qt::Key_SysReq: keysym = 0x1005FF60; break;
+	case Qt::Key_Clear: keysym = GDK_KEY_KP_Begin; break;
+	case Qt::Key_Home: keysym = GDK_KEY_Home; break;
+	case Qt::Key_End: keysym = GDK_KEY_End; break;
+	case Qt::Key_Left: keysym = GDK_KEY_Left; break;
+	case Qt::Key_Up: keysym = GDK_KEY_Up; break;
+	case Qt::Key_Right: keysym = GDK_KEY_Right; break;
+	case Qt::Key_Down: keysym = GDK_KEY_Down; break;
+	case Qt::Key_PageUp: keysym = GDK_KEY_Prior; break;
+	case Qt::Key_PageDown: keysym = GDK_KEY_Next; break;
+	case Qt::Key_Shift: keysym = GDK_KEY_Shift_L; break;
+	case Qt::Key_Control: keysym = GDK_KEY_Control_L; break;
+	case Qt::Key_Meta: keysym = GDK_KEY_Meta_L; break;
+	case Qt::Key_Alt: keysym = GDK_KEY_Alt_L; break;
+	case Qt::Key_CapsLock: keysym = GDK_KEY_Caps_Lock; break;
+	case Qt::Key_NumLock: keysym = GDK_KEY_Num_Lock; break;
+	case Qt::Key_ScrollLock: keysym = GDK_KEY_Scroll_Lock; break;
+	case Qt::Key_F1: keysym = GDK_KEY_F1; break;
+	case Qt::Key_F2: keysym = GDK_KEY_F2; break;
+	case Qt::Key_F3: keysym = GDK_KEY_F3; break;
+	case Qt::Key_F4: keysym = GDK_KEY_F4; break;
+	case Qt::Key_F5: keysym = GDK_KEY_F5; break;
+	case Qt::Key_F6: keysym = GDK_KEY_F6; break;
+	case Qt::Key_F7: keysym = GDK_KEY_F7; break;
+	case Qt::Key_F8: keysym = GDK_KEY_F8; break;
+	case Qt::Key_F9: keysym = GDK_KEY_F9; break;
+	case Qt::Key_F10: keysym = GDK_KEY_F10; break;
+	case Qt::Key_F11: keysym = GDK_KEY_F11; break;
+	case Qt::Key_F12: keysym = GDK_KEY_F12; break;
+	case Qt::Key_F13: keysym = GDK_KEY_F13; break;
+	case Qt::Key_F14: keysym = GDK_KEY_F14; break;
+	case Qt::Key_F15: keysym = GDK_KEY_F15; break;
+	case Qt::Key_F16: keysym = GDK_KEY_F16; break;
+	case Qt::Key_F17: keysym = GDK_KEY_F17; break;
+	case Qt::Key_F18: keysym = GDK_KEY_F18; break;
+	case Qt::Key_F19: keysym = GDK_KEY_F19; break;
+	case Qt::Key_F20: keysym = GDK_KEY_F20; break;
+	case Qt::Key_F21: keysym = GDK_KEY_F21; break;
+	case Qt::Key_F22: keysym = GDK_KEY_F22; break;
+	case Qt::Key_F23: keysym = GDK_KEY_F23; break;
+	case Qt::Key_F24: keysym = GDK_KEY_F24; break;
+	case Qt::Key_F25: keysym = GDK_KEY_F25; break;
+	case Qt::Key_F26: keysym = GDK_KEY_F26; break;
+	case Qt::Key_F27: keysym = GDK_KEY_F27; break;
+	case Qt::Key_F28: keysym = GDK_KEY_F28; break;
+	case Qt::Key_F29: keysym = GDK_KEY_F29; break;
+	case Qt::Key_F30: keysym = GDK_KEY_F30; break;
+	case Qt::Key_F31: keysym = GDK_KEY_F31; break;
+	case Qt::Key_F32: keysym = GDK_KEY_F32; break;
+	case Qt::Key_F33: keysym = GDK_KEY_F33; break;
+	case Qt::Key_F34: keysym = GDK_KEY_F34; break;
+	case Qt::Key_F35: keysym = GDK_KEY_F35; break;
+	case Qt::Key_Super_L: keysym = GDK_KEY_Super_L; break;
+	case Qt::Key_Super_R: keysym = GDK_KEY_Super_R; break;
+	case Qt::Key_Menu: keysym = GDK_KEY_Menu; break;
+	case Qt::Key_Hyper_L: keysym = GDK_KEY_Hyper_L; break;
+	case Qt::Key_Hyper_R: keysym = GDK_KEY_Hyper_R; break;
+	case Qt::Key_Help: keysym = GDK_KEY_Help; break;
+
+	case Qt::Key_Space: keysym = GDK_KEY_space; break;
+	case Qt::Key_Exclam: keysym = GDK_KEY_exclam; break;
+	case Qt::Key_QuoteDbl: keysym = GDK_KEY_quotedbl; break;
+	case Qt::Key_NumberSign: keysym = GDK_KEY_numbersign; break;
+	case Qt::Key_Dollar: keysym = GDK_KEY_dollar; break;
+	case Qt::Key_Percent: keysym = GDK_KEY_percent; break;
+	case Qt::Key_Ampersand: keysym = GDK_KEY_ampersand; break;
+	case Qt::Key_Apostrophe: keysym = GDK_KEY_apostrophe; break;
+	case Qt::Key_ParenLeft: keysym = GDK_KEY_parenleft; break;
+	case Qt::Key_ParenRight: keysym = GDK_KEY_parenright; break;
+	case Qt::Key_Asterisk: keysym = GDK_KEY_asterisk; break;
+	case Qt::Key_Plus: keysym = GDK_KEY_plus; break;
+	case Qt::Key_Comma: keysym = GDK_KEY_comma; break;
+	case Qt::Key_Minus: keysym = GDK_KEY_minus; break;
+	case Qt::Key_Period: keysym = GDK_KEY_period; break;
+	case Qt::Key_Slash: keysym = GDK_KEY_slash; break;
+	case Qt::Key_0: keysym = GDK_KEY_0; break;
+	case Qt::Key_1: keysym = GDK_KEY_1; break;
+	case Qt::Key_2: keysym = GDK_KEY_2; break;
+	case Qt::Key_3: keysym = GDK_KEY_3; break;
+	case Qt::Key_4: keysym = GDK_KEY_4; break;
+	case Qt::Key_5: keysym = GDK_KEY_5; break;
+	case Qt::Key_6: keysym = GDK_KEY_6; break;
+	case Qt::Key_7: keysym = GDK_KEY_7; break;
+	case Qt::Key_8: keysym = GDK_KEY_8; break;
+	case Qt::Key_9: keysym = GDK_KEY_9; break;
+	case Qt::Key_Colon: keysym = GDK_KEY_colon; break;
+	case Qt::Key_Semicolon: keysym = GDK_KEY_semicolon; break;
+	case Qt::Key_Less: keysym = GDK_KEY_less; break;
+	case Qt::Key_Equal: keysym = GDK_KEY_equal; break;
+	case Qt::Key_Greater: keysym = GDK_KEY_greater; break;
+	case Qt::Key_Question: keysym = GDK_KEY_question; break;
+	case Qt::Key_At: keysym = GDK_KEY_at; break;
+	case Qt::Key_A: keysym = GDK_KEY_a; break; // Must be lower case keysyms
+	case Qt::Key_B: keysym = GDK_KEY_b; break; // for correct shift handling.
+	case Qt::Key_C: keysym = GDK_KEY_c; break;
+	case Qt::Key_D: keysym = GDK_KEY_d; break;
+	case Qt::Key_E: keysym = GDK_KEY_e; break;
+	case Qt::Key_F: keysym = GDK_KEY_f; break;
+	case Qt::Key_G: keysym = GDK_KEY_g; break;
+	case Qt::Key_H: keysym = GDK_KEY_h; break;
+	case Qt::Key_I: keysym = GDK_KEY_i; break;
+	case Qt::Key_J: keysym = GDK_KEY_j; break;
+	case Qt::Key_K: keysym = GDK_KEY_k; break;
+	case Qt::Key_L: keysym = GDK_KEY_l; break;
+	case Qt::Key_M: keysym = GDK_KEY_m; break;
+	case Qt::Key_N: keysym = GDK_KEY_n; break;
+	case Qt::Key_O: keysym = GDK_KEY_o; break;
+	case Qt::Key_P: keysym = GDK_KEY_p; break;
+	case Qt::Key_Q: keysym = GDK_KEY_q; break;
+	case Qt::Key_R: keysym = GDK_KEY_r; break;
+	case Qt::Key_S: keysym = GDK_KEY_s; break;
+	case Qt::Key_T: keysym = GDK_KEY_t; break;
+	case Qt::Key_U: keysym = GDK_KEY_u; break;
+	case Qt::Key_V: keysym = GDK_KEY_v; break;
+	case Qt::Key_W: keysym = GDK_KEY_w; break;
+	case Qt::Key_X: keysym = GDK_KEY_x; break;
+	case Qt::Key_Y: keysym = GDK_KEY_y; break;
+	case Qt::Key_Z: keysym = GDK_KEY_z; break;
+	case Qt::Key_BracketLeft: keysym = GDK_KEY_bracketleft; break;
+	case Qt::Key_Backslash: keysym = GDK_KEY_backslash; break;
+	case Qt::Key_BracketRight: keysym = GDK_KEY_bracketright; break;
+	case Qt::Key_AsciiCircum: keysym = GDK_KEY_asciicircum; break;
+	case Qt::Key_Underscore: keysym = GDK_KEY_underscore; break;
+	case Qt::Key_QuoteLeft: keysym = GDK_KEY_quoteleft; break;
+	case Qt::Key_BraceLeft: keysym = GDK_KEY_braceleft; break;
+	case Qt::Key_Bar: keysym = GDK_KEY_bar; break;
+	case Qt::Key_BraceRight: keysym = GDK_KEY_braceright; break;
+	case Qt::Key_AsciiTilde: keysym = GDK_KEY_asciitilde; break;
+
+	case Qt::Key_nobreakspace: keysym = GDK_KEY_nobreakspace; break;
+	case Qt::Key_exclamdown: keysym = GDK_KEY_exclamdown; break;
+	case Qt::Key_cent: keysym = GDK_KEY_cent; break;
+	case Qt::Key_sterling: keysym = GDK_KEY_sterling; break;
+	case Qt::Key_currency: keysym = GDK_KEY_currency; break;
+	case Qt::Key_yen: keysym = GDK_KEY_yen; break;
+	case Qt::Key_brokenbar: keysym = GDK_KEY_brokenbar; break;
+	case Qt::Key_section: keysym = GDK_KEY_section; break;
+	case Qt::Key_diaeresis: keysym = GDK_KEY_diaeresis; break;
+	case Qt::Key_copyright: keysym = GDK_KEY_copyright; break;
+	case Qt::Key_ordfeminine: keysym = GDK_KEY_ordfeminine; break;
+	case Qt::Key_guillemotleft: keysym = GDK_KEY_guillemotleft; break;
+	case Qt::Key_notsign: keysym = GDK_KEY_notsign; break;
+	case Qt::Key_hyphen: keysym = GDK_KEY_hyphen; break;
+	case Qt::Key_registered: keysym = GDK_KEY_registered; break;
+	case Qt::Key_macron: keysym = GDK_KEY_macron; break;
+	case Qt::Key_degree: keysym = GDK_KEY_degree; break;
+	case Qt::Key_plusminus: keysym = GDK_KEY_plusminus; break;
+	case Qt::Key_twosuperior: keysym = GDK_KEY_twosuperior; break;
+	case Qt::Key_threesuperior: keysym = GDK_KEY_threesuperior; break;
+	case Qt::Key_acute: keysym = GDK_KEY_acute; break;
+	case Qt::Key_mu: keysym = GDK_KEY_mu; break;
+	case Qt::Key_paragraph: keysym = GDK_KEY_paragraph; break;
+	case Qt::Key_periodcentered: keysym = GDK_KEY_periodcentered; break;
+	case Qt::Key_cedilla: keysym = GDK_KEY_cedilla; break;
+	case Qt::Key_onesuperior: keysym = GDK_KEY_onesuperior; break;
+	case Qt::Key_masculine: keysym = GDK_KEY_masculine; break;
+	case Qt::Key_guillemotright: keysym = GDK_KEY_guillemotright; break;
+	case Qt::Key_onequarter: keysym = GDK_KEY_onequarter; break;
+	case Qt::Key_onehalf: keysym = GDK_KEY_onehalf; break;
+	case Qt::Key_threequarters: keysym = GDK_KEY_threequarters; break;
+	case Qt::Key_questiondown: keysym = GDK_KEY_questiondown; break;
+	case Qt::Key_Agrave: keysym = GDK_KEY_agrave; break;	// Lower case keysyms
+	case Qt::Key_Aacute: keysym = GDK_KEY_aacute; break; // for shift handling.
+	case Qt::Key_Acircumflex: keysym = GDK_KEY_acircumflex; break;
+	case Qt::Key_Atilde: keysym = GDK_KEY_atilde; break;
+	case Qt::Key_Adiaeresis: keysym = GDK_KEY_adiaeresis; break;
+	case Qt::Key_Aring: keysym = GDK_KEY_aring; break;
+	case Qt::Key_AE: keysym = GDK_KEY_ae; break;
+	case Qt::Key_Ccedilla: keysym = GDK_KEY_ccedilla; break;
+	case Qt::Key_Egrave: keysym = GDK_KEY_egrave; break;
+	case Qt::Key_Eacute: keysym = GDK_KEY_eacute; break;
+	case Qt::Key_Ecircumflex: keysym = GDK_KEY_ecircumflex; break;
+	case Qt::Key_Ediaeresis: keysym = GDK_KEY_ediaeresis; break;
+	case Qt::Key_Igrave: keysym = GDK_KEY_igrave; break;
+	case Qt::Key_Iacute: keysym = GDK_KEY_iacute; break;
+	case Qt::Key_Icircumflex: keysym = GDK_KEY_icircumflex; break;
+	case Qt::Key_Idiaeresis: keysym = GDK_KEY_idiaeresis; break;
+	case Qt::Key_ETH: keysym = GDK_KEY_eth; break;
+	case Qt::Key_Ntilde: keysym = GDK_KEY_ntilde; break;
+	case Qt::Key_Ograve: keysym = GDK_KEY_ograve; break;
+	case Qt::Key_Oacute: keysym = GDK_KEY_oacute; break;
+	case Qt::Key_Ocircumflex: keysym = GDK_KEY_ocircumflex; break;
+	case Qt::Key_Otilde: keysym = GDK_KEY_otilde; break;
+	case Qt::Key_Odiaeresis: keysym = GDK_KEY_odiaeresis; break;
+	case Qt::Key_multiply: keysym = GDK_KEY_multiply; break;
+	case Qt::Key_Ooblique: keysym = GDK_KEY_ooblique; break;
+	case Qt::Key_Ugrave: keysym = GDK_KEY_ugrave; break;
+	case Qt::Key_Uacute: keysym = GDK_KEY_uacute; break;
+	case Qt::Key_Ucircumflex: keysym = GDK_KEY_ucircumflex; break;
+	case Qt::Key_Udiaeresis: keysym = GDK_KEY_udiaeresis; break;
+	case Qt::Key_Yacute: keysym = GDK_KEY_yacute; break;
+	case Qt::Key_THORN: keysym = GDK_KEY_thorn; break;
+	case Qt::Key_ssharp: keysym = GDK_KEY_ssharp; break;
+	case Qt::Key_division: keysym = GDK_KEY_division; break;
+	case Qt::Key_ydiaeresis: keysym = GDK_KEY_ydiaeresis; break;
+
+	case Qt::Key_AltGr: keysym = GDK_KEY_ISO_Level3_Shift; break;
+	case Qt::Key_Multi_key: keysym = GDK_KEY_Multi_key; break;
+	case Qt::Key_Codeinput: keysym = GDK_KEY_Codeinput; break;
+	case Qt::Key_SingleCandidate: keysym = GDK_KEY_SingleCandidate; break;
+	case Qt::Key_MultipleCandidate: keysym = GDK_KEY_MultipleCandidate; break;
+	case Qt::Key_PreviousCandidate: keysym = GDK_KEY_PreviousCandidate; break;
+
+	case Qt::Key_Mode_switch: keysym = GDK_KEY_Mode_switch; break;
+
+	case Qt::Key_Kanji: keysym = GDK_KEY_Kanji; break;
+	case Qt::Key_Muhenkan: keysym = GDK_KEY_Muhenkan; break;
+	case Qt::Key_Henkan: keysym = GDK_KEY_Henkan; break;
+	case Qt::Key_Romaji: keysym = GDK_KEY_Romaji; break;
+	case Qt::Key_Hiragana: keysym = GDK_KEY_Hiragana; break;
+	case Qt::Key_Katakana: keysym = GDK_KEY_Katakana; break;
+	case Qt::Key_Hiragana_Katakana: keysym = GDK_KEY_Hiragana_Katakana; break;
+	case Qt::Key_Zenkaku: keysym = GDK_KEY_Zenkaku; break;
+	case Qt::Key_Hankaku: keysym = GDK_KEY_Hankaku; break;
+	case Qt::Key_Zenkaku_Hankaku: keysym = GDK_KEY_Zenkaku_Hankaku; break;
+	case Qt::Key_Touroku: keysym = GDK_KEY_Touroku; break;
+	case Qt::Key_Massyo: keysym = GDK_KEY_Massyo; break;
+	case Qt::Key_Kana_Lock: keysym = GDK_KEY_Kana_Lock; break;
+	case Qt::Key_Kana_Shift: keysym = GDK_KEY_Kana_Shift; break;
+	case Qt::Key_Eisu_Shift: keysym = GDK_KEY_Eisu_Shift; break;
+	case Qt::Key_Eisu_toggle: keysym = GDK_KEY_Eisu_toggle; break;
+
+	case Qt::Key_Hangul: keysym = GDK_KEY_Hangul; break;
+	case Qt::Key_Hangul_Start: keysym = GDK_KEY_Hangul_Start; break;
+	case Qt::Key_Hangul_End: keysym = GDK_KEY_Hangul_End; break;
+	case Qt::Key_Hangul_Hanja: keysym = GDK_KEY_Hangul_Hanja; break;
+	case Qt::Key_Hangul_Jamo: keysym = GDK_KEY_Hangul_Jamo; break;
+	case Qt::Key_Hangul_Romaja: keysym = GDK_KEY_Hangul_Romaja; break;
+	case Qt::Key_Hangul_Jeonja: keysym = GDK_KEY_Hangul_Jeonja; break;
+	case Qt::Key_Hangul_Banja: keysym = GDK_KEY_Hangul_Banja; break;
+	case Qt::Key_Hangul_PreHanja: keysym = GDK_KEY_Hangul_PreHanja; break;
+	case Qt::Key_Hangul_PostHanja: keysym = GDK_KEY_Hangul_PostHanja; break;
+	case Qt::Key_Hangul_Special: keysym = GDK_KEY_Hangul_Special; break;
+
+	case Qt::Key_Dead_Grave: keysym = GDK_KEY_dead_grave; break;
+	case Qt::Key_Dead_Acute: keysym = GDK_KEY_dead_acute; break;
+	case Qt::Key_Dead_Circumflex: keysym = GDK_KEY_dead_circumflex; break;
+	case Qt::Key_Dead_Tilde: keysym = GDK_KEY_dead_tilde; break;
+	case Qt::Key_Dead_Macron: keysym = GDK_KEY_dead_macron; break;
+	case Qt::Key_Dead_Breve: keysym = GDK_KEY_dead_breve; break;
+	case Qt::Key_Dead_Abovedot: keysym = GDK_KEY_dead_abovedot; break;
+	case Qt::Key_Dead_Diaeresis: keysym = GDK_KEY_dead_diaeresis; break;
+	case Qt::Key_Dead_Abovering: keysym = GDK_KEY_dead_abovering; break;
+	case Qt::Key_Dead_Doubleacute: keysym = GDK_KEY_dead_doubleacute; break;
+	case Qt::Key_Dead_Caron: keysym = GDK_KEY_dead_caron; break;
+	case Qt::Key_Dead_Cedilla: keysym = GDK_KEY_dead_cedilla; break;
+	case Qt::Key_Dead_Ogonek: keysym = GDK_KEY_dead_ogonek; break;
+	case Qt::Key_Dead_Iota: keysym = GDK_KEY_dead_iota; break;
+	case Qt::Key_Dead_Voiced_Sound: keysym = GDK_KEY_dead_voiced_sound; break;
+	case Qt::Key_Dead_Semivoiced_Sound: keysym = GDK_KEY_dead_semivoiced_sound; break;
+	case Qt::Key_Dead_Belowdot: keysym = GDK_KEY_dead_belowdot; break;
+	case Qt::Key_Dead_Hook: keysym = GDK_KEY_dead_hook; break;
+	case Qt::Key_Dead_Horn: keysym = GDK_KEY_dead_horn; break;
+	}
+
+	return keysym;
+}
diff --git a/module/qtkeysyms.h b/module/qtkeysyms.h
new file mode 100644
index 0000000..3f9ae22
--- /dev/null
+++ b/module/qtkeysyms.h
@@ -0,0 +1,6 @@
+#ifndef QTKEYSYMS_H
+#define QTKEYSYMS_H
+
+unsigned int qt_to_gdk_key(unsigned int qt_key);
+
+#endif // QTKEYSYMS_H
diff --git a/module/topmenumenubarimpl.cc b/module/topmenumenubarimpl.cc
new file mode 100644
index 0000000..1753394
--- /dev/null
+++ b/module/topmenumenubarimpl.cc
@@ -0,0 +1,252 @@
+#include <gtk/gtk.h>
+#include <topmenu-client.h>
+#include <topmenu-monitor.h>
+#include <topmenu-appmenubar.h>
+#include <QtCore/QDebug>
+#include <QtGui/QActionEvent>
+#include <QtGui/QMenu>
+#include <QtGui/QX11Info>
+
+#include "topmenumenubarimpl.h"
+#include "appmenu.h"
+#include "qtkeysyms.h"
+
+bool TopMenuMenuBarImpl::staticInitialized = false;
+TopMenuMonitor * TopMenuMenuBarImpl::menuMonitor; 
+
+static inline QShortcut * get_shortcut_for_action(QAction *action)
+{
+	QVariant v = action->property("topmenu-shortcut");
+	if (v.isValid()) {
+		return static_cast<QShortcut*>(v.value<QObject*>());
+	}
+	return 0;
+}
+
+static inline void set_shortcut_for_action(QAction *action, QShortcut *shortcut)
+{
+	if (shortcut) {
+		action->setProperty("topmenu-shortcut", QVariant::fromValue<QObject*>(shortcut));
+	} else {
+		action->setProperty("topmenu-shortcut", QVariant());
+	}
+}
+
+static inline QAction * get_action_for_shortcut(QShortcut *shortcut)
+{
+	QVariant v = shortcut->property("topmenu-action");
+	if (v.isValid()) {
+		return static_cast<QAction*>(v.value<QObject*>());
+	}
+	return 0;
+}
+
+static inline void set_action_for_shortcut(QShortcut *shortcut, QAction *action)
+{
+	if (shortcut) {
+		shortcut->setProperty("topmenu-action", QVariant::fromValue<QObject*>(action));
+	} else {
+		shortcut->setProperty("topmenu-action", QVariant());
+	}
+}
+
+TopMenuMenuBarImpl::TopMenuMenuBarImpl(QObject *parent) :
+	MenuProxy(parent),
+    m_window(0), m_menubar(0), m_appmenu(0),
+    m_disable(false), m_visible(true)
+{
+	// A new instance of this class will be created for each window.
+	if (!staticInitialized) {
+		XErrorHandler qt_x_errhandler = XSetErrorHandler(0);
+		gtk_init(NULL, NULL);
+        XSetErrorHandler(qt_x_errhandler);
+
+		menuMonitor = topmenu_monitor_get_instance();
+		// TODO g_signal_connect()
+
+		staticInitialized = true;
+	}
+}
+
+TopMenuMenuBarImpl::~TopMenuMenuBarImpl()
+{
+	if (m_menubar) {
+		g_object_unref(m_menubar);
+		m_menubar = 0;
+	}
+}
+
+void TopMenuMenuBarImpl::init(QMenuBar *menuBar)
+{
+	Q_ASSERT(menuBar);
+	Q_ASSERT(!m_menubar);
+	m_menubar = topmenu_app_menu_bar_new();
+	g_object_ref_sink(m_menubar);
+	m_appmenu = new AppMenu(this);
+	topmenu_app_menu_bar_set_app_menu(m_menubar,
+	                                  GTK_WIDGET(m_appmenu->getGtkMenu()));
+	gtk_widget_show(GTK_WIDGET(m_menubar));
+	setTargetMenu(GTK_MENU_SHELL(m_menubar));
+}
+
+void TopMenuMenuBarImpl::setVisible(bool visible)
+{
+	m_visible = visible;
+}
+
+void TopMenuMenuBarImpl::actionEvent(QActionEvent *e)
+{
+	switch (e->type()) {
+	case QEvent::ActionAdded:
+		addAction(e->action(), e->before(), 0);
+		break;
+	case QEvent::ActionRemoved:
+		removeAction(e->action());
+		break;
+	case QEvent::ActionChanged:
+		updateAction(e->action());
+		break;
+	default:
+		break;
+	}
+}
+
+void TopMenuMenuBarImpl::handleReparent(QWidget *oldParent, QWidget *newParent, QWidget *oldWindow, QWidget *newWindow)
+{
+	Q_UNUSED(oldParent);
+	Q_UNUSED(newParent);
+
+	if (oldWindow) {
+		GdkWindow *old_window = gdk_window_foreign_new(oldWindow->winId());
+		topmenu_client_disconnect_window(old_window);
+
+		Q_FOREACH(QAction *action, m_rootitems) {
+			QShortcut *shortcut = get_shortcut_for_action(action);
+			if (shortcut) {
+				set_shortcut_for_action(action, 0);
+				delete shortcut;
+			}
+		}
+	}
+
+	if (newWindow) {
+		Q_ASSERT(m_menubar);
+		GdkWindow *new_window = gdk_window_foreign_new(newWindow->winId());
+		topmenu_client_connect_window_widget(new_window, GTK_WIDGET(m_menubar));
+
+		Q_FOREACH(QAction *action, m_rootitems) {
+			createMnemonicShortcut(action, newWindow);
+		}
+	}
+
+	m_window = newWindow;
+}
+
+bool TopMenuMenuBarImpl::allowCornerWidgets() const
+{
+	return !isNativeMenuBar();
+}
+
+void TopMenuMenuBarImpl::popupAction(QAction *act)
+{
+	qDebug() << "TODO Popup action: " << act->text();
+}
+
+void TopMenuMenuBarImpl::setNativeMenuBar(bool value)
+{
+	m_disable = !value;
+}
+
+bool TopMenuMenuBarImpl::isNativeMenuBar() const
+{
+	if (m_disable || QCoreApplication::instance()->testAttribute(Qt::AA_DontUseNativeMenuBar))
+		return false;
+	return menuMonitor->available;
+}
+
+bool TopMenuMenuBarImpl::shortcutsHandledByNativeMenuBar() const
+{
+	return false;
+}
+
+bool TopMenuMenuBarImpl::menuBarEventFilter(QObject *src, QEvent *event)
+{
+	Q_UNUSED(src);
+	Q_UNUSED(event);
+	return false;
+}
+
+GtkMenuItem * TopMenuMenuBarImpl::addAction(QAction* action, QAction* before, QMenu* parent)
+{	
+	if (!parent) {
+		m_rootitems.append(action);
+
+		if (m_window) {
+			createMnemonicShortcut(action, m_window);
+		}
+	}
+
+	if (m_appmenu) {
+		m_appmenu->addAction(action);
+	}
+
+	return MenuProxy::addAction(action, before, parent);
+}
+
+void TopMenuMenuBarImpl::removeAction(QAction *action)
+{
+	m_rootitems.removeAll(action);
+	QShortcut *shortcut = get_shortcut_for_action(action);
+	if (shortcut) {
+		set_shortcut_for_action(action, 0);
+		delete shortcut;
+	}
+
+	if (m_appmenu) {
+		m_appmenu->removeAction(action);
+	}
+
+	MenuProxy::removeAction(action);
+}
+
+void TopMenuMenuBarImpl::updateAction(QAction *action)
+{
+	if (!action->isSeparator() && m_rootitems.contains(action) && m_window) {
+		QShortcut *shortcut = get_shortcut_for_action(action);
+		if (shortcut) {
+			shortcut->setKey(QKeySequence::mnemonic(action->text()));
+		} else {
+			shortcut = createMnemonicShortcut(action, m_window);
+		}
+		shortcut->setEnabled(action->isEnabled());
+	}
+
+	if (m_appmenu) {
+		m_appmenu->updateAction(action);
+	}
+
+	MenuProxy::updateAction(action);
+}
+
+QShortcut * TopMenuMenuBarImpl::createMnemonicShortcut(QAction *action, QWidget *parent)
+{
+	QShortcut *shortcut = new QShortcut(parent);
+
+	set_shortcut_for_action(action, shortcut);
+	set_action_for_shortcut(shortcut, action);
+
+	shortcut->setKey(QKeySequence::mnemonic(action->text()));
+
+	connect(shortcut, SIGNAL(activated()),
+	        this, SLOT(handleShortcutActivated()));
+
+	return shortcut;
+}
+
+void TopMenuMenuBarImpl::handleShortcutActivated()
+{
+	QShortcut *shortcut = static_cast<QShortcut*>(sender());
+	QAction *action = get_action_for_shortcut(shortcut);
+	GtkMenuItem *item = getItemForAction(action);
+	gtk_widget_mnemonic_activate(GTK_WIDGET(item), FALSE);
+}
diff --git a/module/topmenumenubarimpl.h b/module/topmenumenubarimpl.h
new file mode 100644
index 0000000..7573f76
--- /dev/null
+++ b/module/topmenumenubarimpl.h
@@ -0,0 +1,71 @@
+#ifndef TOPMENUMENUBARIMPL_H
+#define TOPMENUMENUBARIMPL_H
+
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDateTime>
+#include <QtCore/QHash>
+#include <QtCore/QTimer>
+#include <QtGui/QAction>
+#include <QtGui/QShortcut>
+#include <QtGui/QX11Info>
+#include <QtGui/private/qabstractplatformmenubar_p.h>
+#include <QtGui/private/qt_x11_p.h>
+
+#include "menuproxy.h"
+
+class AppMenu;
+typedef struct _TopMenuMonitor        TopMenuMonitor;
+typedef struct _TopMenuAppMenuBar     TopMenuAppMenuBar;
+
+class TopMenuMenuBarImpl : public MenuProxy, public QAbstractPlatformMenuBar {
+    Q_OBJECT
+
+public:
+	explicit TopMenuMenuBarImpl(QObject *parent = 0);
+	~TopMenuMenuBarImpl();
+
+	void init(QMenuBar *);
+
+	void setVisible(bool visible);
+
+	void actionEvent(QActionEvent*);
+
+	void handleReparent(QWidget *oldParent, QWidget *newParent, QWidget *oldWindow, QWidget *newWindow);
+
+	bool allowCornerWidgets() const;
+
+	void popupAction(QAction*);
+
+	void setNativeMenuBar(bool);
+	bool isNativeMenuBar() const;
+
+	bool shortcutsHandledByNativeMenuBar() const;
+	bool menuBarEventFilter(QObject *, QEvent *event);
+
+protected:
+	GtkMenuItem * addAction(QAction* action, QAction* before, QMenu* parent);
+	void removeAction(QAction* action);
+	void updateAction(QAction* action);
+
+private:
+	QShortcut * createMnemonicShortcut(QAction *action, QWidget *parent);
+
+private slots:
+	void handleShortcutActivated();
+
+private:
+	static bool staticInitialized;
+	static TopMenuMonitor *menuMonitor;
+
+	QWidget *m_window;
+	TopMenuAppMenuBar *m_menubar;
+
+	QList<QAction*> m_rootitems;
+
+	AppMenu *m_appmenu;
+
+	bool m_disable : 1;
+	bool m_visible : 1;
+};
+
+#endif // TOPMENUMENUBARIMPL_H
diff --git a/module/topmenumenubarimplfactory.cc b/module/topmenumenubarimplfactory.cc
new file mode 100644
index 0000000..ce577c7
--- /dev/null
+++ b/module/topmenumenubarimplfactory.cc
@@ -0,0 +1,16 @@
+#include <QtCore/QDebug>
+
+#include "topmenumenubarimplfactory.h"
+#include "topmenumenubarimpl.h"
+
+QAbstractPlatformMenuBar* TopMenuMenuBarImplFactory::create()
+{
+	return new TopMenuMenuBarImpl;
+}
+
+QStringList TopMenuMenuBarImplFactory::keys() const
+{
+	return QStringList() << QLatin1String("default");
+}
+
+Q_EXPORT_PLUGIN2(topmenu-qt4-module, TopMenuMenuBarImplFactory)
diff --git a/module/topmenumenubarimplfactory.h b/module/topmenumenubarimplfactory.h
new file mode 100644
index 0000000..7d43b26
--- /dev/null
+++ b/module/topmenumenubarimplfactory.h
@@ -0,0 +1,16 @@
+#ifndef TOPMENUMENUBARIMPLFACTORY_H
+#define TOPMENUMENUBARIMPLFACTORY_H
+
+#include <QtCore/QObject>
+#include <QtGui/private/qabstractplatformmenubar_p.h>
+
+class Q_GUI_EXPORT TopMenuMenuBarImplFactory : public QObject, public QPlatformMenuBarFactoryInterface
+{
+	Q_OBJECT
+	Q_INTERFACES(QPlatformMenuBarFactoryInterface:QFactoryInterface)
+public:
+	QAbstractPlatformMenuBar* create();
+	QStringList keys() const;
+};
+
+#endif // TOPMENUMENUBARIMPLFACTORY_H