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#include "qtmenubar_p.h"

#include "private/qguiapplication_p.h"
#include <QtGui/qpa/qplatformtheme.h>
#include <QtGui/qpa/qplatformmenu.h>

QT_BEGIN_NAMESPACE


/*!
  \class QtMenuBar
  \internal
 */

/*!
  \qmltype MenuBarPrivate
  \instantiates QtMenuBar
  \internal
  \inqmlmodule QtQuick.Controls 1.0
 */
QtMenuBar::QtMenuBar(QQuickItem *parent)
    : QQuickItem(parent)
{
    connect(this, SIGNAL(parentChanged(QQuickItem *)), this, SLOT(updateParent(QQuickItem *)));
    m_platformMenuBar = QGuiApplicationPrivate::platformTheme()->createPlatformMenuBar();
}

QtMenuBar::~QtMenuBar()
{
}

QQmlListProperty<QtMenu> QtMenuBar::menus()
{
    return QQmlListProperty<QtMenu>(this, 0, &QtMenuBar::append_menu, &QtMenuBar::count_menu, &QtMenuBar::at_menu, 0);
}

bool QtMenuBar::isNative() {
    return m_platformMenuBar != 0;
}

void QtMenuBar::updateParent(QQuickItem *newParent)
{
    QWindow *newParentWindow = newParent ? newParent->window() : 0;
    if (newParentWindow != window() && m_platformMenuBar)
        m_platformMenuBar->handleReparent(newParentWindow);
}

void QtMenuBar::append_menu(QQmlListProperty<QtMenu> *list, QtMenu *menu)
{
    if (QtMenuBar *menuBar = qobject_cast<QtMenuBar *>(list->object)) {
        menu->setParent(menuBar);
        menuBar->m_menus.append(menu);

        if (menuBar->m_platformMenuBar)
            menuBar->m_platformMenuBar->insertMenu(menu->platformMenu(), 0 /* append */);

        menuBar->menuChanged();
    }
}

int QtMenuBar::count_menu(QQmlListProperty<QtMenu> *list)
{
    if (QtMenuBar *menuBar = qobject_cast<QtMenuBar *>(list->object))
        return menuBar->m_menus.size();
    return 0;
}

QtMenu *QtMenuBar::at_menu(QQmlListProperty<QtMenu> *list, int index)
{
    QtMenuBar *menuBar = qobject_cast<QtMenuBar *>(list->object);
    if (menuBar &&  0 <= index && index < menuBar->m_menus.size())
        return menuBar->m_menus[index];
    return 0;
}

QT_END_NAMESPACE