/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtTest module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** 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
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****************************************************************************/

#if !defined(QTESTMOUSE_H)
#define QTESTMOUSE_H

#include <QtTest/qtest_global.h>
#include <QtTest/qtestassert.h>
#include <QtTest/qtestsystem.h>
#include <QtTest/qtestspontaneevent.h>

#include <QtCore/qpoint.h>
#include <QtCore/qstring.h>
#include <QtGui/qapplication.h>
#include <QtGui/qevent.h>
#include <QtGui/qwidget.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE


namespace QTest
{
    enum MouseAction { MousePress, MouseRelease, MouseClick, MouseDClick, MouseMove };

    static void mouseEvent(MouseAction action, QWidget *widget, Qt::MouseButton button,
                           Qt::KeyboardModifiers stateKey, QPoint pos, int delay=-1)
    {
        QTEST_ASSERT(widget);
        extern int Q_TEST_EXPORT defaultMouseDelay();

        if (delay == -1 || delay < defaultMouseDelay())
            delay = defaultMouseDelay();
        if(delay > 0)
            QTest::qWait(delay);

        if (pos.isNull())
            pos = widget->rect().center();

        if (action == MouseClick) {
            mouseEvent(MousePress, widget, button, stateKey, pos);
            mouseEvent(MouseRelease, widget, button, stateKey, pos);
            return;
        }

        QTEST_ASSERT(button == Qt::NoButton || button & Qt::MouseButtonMask);
        QTEST_ASSERT(stateKey == 0 || stateKey & Qt::KeyboardModifierMask);

        stateKey &= static_cast<unsigned int>(Qt::KeyboardModifierMask);

        QMouseEvent me(QEvent::User, QPoint(), Qt::LeftButton, button, stateKey);
        switch (action)
        {
            case MousePress:
                me = QMouseEvent(QEvent::MouseButtonPress, pos, widget->mapToGlobal(pos), button, button, stateKey);
                break;
            case MouseRelease:
                me = QMouseEvent(QEvent::MouseButtonRelease, pos, widget->mapToGlobal(pos), button, 0, stateKey);
                break;
            case MouseDClick:
                me = QMouseEvent(QEvent::MouseButtonDblClick, pos, widget->mapToGlobal(pos), button, button, stateKey);
                break;
            case MouseMove:
                QCursor::setPos(widget->mapToGlobal(pos));
                qApp->processEvents();
                return;
            default:
                QTEST_ASSERT(false);
        }
        QSpontaneKeyEvent::setSpontaneous(&me);
        if (!qApp->notify(widget, &me)) {
            static const char *mouseActionNames[] =
                { "MousePress", "MouseRelease", "MouseClick", "MouseDClick", "MouseMove" };
            QString warning = QString::fromLatin1("Mouse event \"%1\" not accepted by receiving widget");
            QTest::qWarn(warning.arg(QString::fromLatin1(mouseActionNames[static_cast<int>(action)])).toAscii().data());
        }

    }

    inline void mousePress(QWidget *widget, Qt::MouseButton button, Qt::KeyboardModifiers stateKey = 0,
                           QPoint pos = QPoint(), int delay=-1)
    { mouseEvent(MousePress, widget, button, stateKey, pos, delay); }
    inline void mouseRelease(QWidget *widget, Qt::MouseButton button, Qt::KeyboardModifiers stateKey = 0,
                             QPoint pos = QPoint(), int delay=-1)
    { mouseEvent(MouseRelease, widget, button, stateKey, pos, delay); }
    inline void mouseClick(QWidget *widget, Qt::MouseButton button, Qt::KeyboardModifiers stateKey = 0,
                           QPoint pos = QPoint(), int delay=-1)
    { mouseEvent(MouseClick, widget, button, stateKey, pos, delay); }
    inline void mouseDClick(QWidget *widget, Qt::MouseButton button, Qt::KeyboardModifiers stateKey = 0,
                            QPoint pos = QPoint(), int delay=-1)
    { mouseEvent(MouseDClick, widget, button, stateKey, pos, delay); }
    inline void mouseMove(QWidget *widget, QPoint pos = QPoint(), int delay=-1)
    { mouseEvent(MouseMove, widget, Qt::NoButton, 0, pos, delay); }

}

QT_END_NAMESPACE

QT_END_HEADER

#endif // QTESTMOUSE_H