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** This file is part of the Qt Quick Controls module of the Qt Toolkit.
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****************************************************************************/

#include "qquickmenubar_p.h"

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

QT_BEGIN_NAMESPACE


/*!
  \class QQuickMenuBar
  \internal
 */

/*!
  \qmltype MenuBarPrivate
  \instantiates QQuickMenuBar
  \internal
  \inqmlmodule QtQuick.Controls
 */

/*!
    \qmlproperty list<Menu> MenuBar::menus
    \default

    The list of menus in the menubar.

    \sa Menu
*/

QQuickMenuBar::QQuickMenuBar(QObject *parent)
    : QObject(parent), m_contentItem(0), m_parentWindow(0)
{
    m_platformMenuBar = QGuiApplicationPrivate::platformTheme()->createPlatformMenuBar();
}

QQuickMenuBar::~QQuickMenuBar()
{
}

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

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

void QQuickMenuBar::setContentItem(QQuickItem *item)
{
    if (item != m_contentItem) {
        m_contentItem = item;
        emit contentItemChanged();
    }
}

void QQuickMenuBar::setParentWindow(QQuickWindow *newParentWindow)
{
    if (newParentWindow != m_parentWindow) {
        m_parentWindow = newParentWindow;
        if (m_platformMenuBar)
            m_platformMenuBar->handleReparent(m_parentWindow);
    }
}

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

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

        emit menuBar->menusChanged();
    }
}

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

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

QT_END_NAMESPACE