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#include <QtTest/QtTest>

#include <qapplication.h>

#include <qlineedit.h>

#if defined (QT3_SUPPORT)

#include <q3popupmenu.h>

#else

#include <qmenu.h>

#endif

#include <qlabel.h>

#include <qdialog.h>

#include <qevent.h>

#include <qlineedit.h>

#include <QBoxLayout>

#include "../../shared/util.h"

QT_FORWARD_DECLARE_CLASS(QWidget)

//TESTED_CLASS=

//TESTED_FILES=gui/kernel/qevent.h gui/kernel/qevent.cpp

class FocusLineEdit : public QLineEdit

{

public:

    FocusLineEdit( QWidget* parent = 0, const char* name = 0 ) : QLineEdit(name, parent) {}

    int focusInEventReason;

    int focusOutEventReason;

    bool focusInEventRecieved;

    bool focusInEventGotFocus;

    bool focusOutEventRecieved;

    bool focusOutEventLostFocus;

protected:

    virtual void keyPressEvent( QKeyEvent *e )

    {

//        qDebug( QString("keyPressEvent: %1").arg(e->key()) );

        QLineEdit::keyPressEvent( e );

    }

    void focusInEvent( QFocusEvent* e )

    {

        QLineEdit::focusInEvent( e );

        focusInEventReason = e->reason();

	    focusInEventGotFocus = e->gotFocus();

        focusInEventRecieved = TRUE;

    }

    void focusOutEvent( QFocusEvent* e )

    {

        QLineEdit::focusOutEvent( e );

        focusOutEventReason = e->reason();

	    focusOutEventLostFocus = !e->gotFocus();

        focusOutEventRecieved = TRUE;

    }

};

class tst_QFocusEvent : public QObject

{

    Q_OBJECT

public:

    tst_QFocusEvent();

    virtual ~tst_QFocusEvent();

    void initWidget();

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

    void cleanup();

private slots:

    void checkReason_Tab();

    void checkReason_ShiftTab();

    void checkReason_BackTab();

    void checkReason_Popup();

    void checkReason_focusWidget();

    void checkReason_Shortcut();

    void checkReason_ActiveWindow();

private:

    QWidget* testFocusWidget;

    FocusLineEdit* childFocusWidgetOne;

    FocusLineEdit* childFocusWidgetTwo;

};

tst_QFocusEvent::tst_QFocusEvent()

{

}

tst_QFocusEvent::~tst_QFocusEvent()

{

}

void tst_QFocusEvent::initTestCase()

{

    testFocusWidget = new QWidget( 0 );

    childFocusWidgetOne = new FocusLineEdit( testFocusWidget );

    childFocusWidgetOne->setGeometry( 10, 10, 180, 20 );

    childFocusWidgetTwo = new FocusLineEdit( testFocusWidget );

    childFocusWidgetTwo->setGeometry( 10, 50, 180, 20 );

    //qApp->setMainWidget( testFocusWidget ); Qt4

    testFocusWidget->resize( 200,100 );

    testFocusWidget->show();

// Applications don't get focus when launched from the command line on Mac.

#ifdef Q_WS_MAC

    testFocusWidget->raise();

#endif

}

void tst_QFocusEvent::cleanupTestCase()

{

    delete testFocusWidget;

}

void tst_QFocusEvent::init()

{

}

void tst_QFocusEvent::cleanup()

{

    childFocusWidgetTwo->setGeometry( 10, 50, 180, 20 );

}

void tst_QFocusEvent::initWidget()

{

    // On X11 we have to ensure the event was processed before doing any checking, on Windows

    // this is processed straight away.

    QApplication::setActiveWindow(childFocusWidgetOne);

    for (int i = 0; i < 1000; ++i) {

	if (childFocusWidgetOne->isActiveWindow() && childFocusWidgetOne->hasFocus())

	    break;

	childFocusWidgetOne->activateWindow();

	childFocusWidgetOne->setFocus();

	qApp->processEvents();

	QTest::qWait(100);

    }

    // The first lineedit should have focus

    QVERIFY( childFocusWidgetOne->hasFocus() );

    childFocusWidgetOne->focusInEventRecieved = FALSE;

    childFocusWidgetOne->focusInEventGotFocus = FALSE;

    childFocusWidgetOne->focusInEventReason = -1;

    childFocusWidgetOne->focusOutEventRecieved = FALSE;

    childFocusWidgetOne->focusOutEventLostFocus = FALSE;

    childFocusWidgetOne->focusOutEventReason = -1;

    childFocusWidgetTwo->focusInEventRecieved = FALSE;

    childFocusWidgetTwo->focusInEventGotFocus = FALSE;

    childFocusWidgetTwo->focusInEventReason = -1;

    childFocusWidgetTwo->focusOutEventRecieved = FALSE;

    childFocusWidgetTwo->focusOutEventLostFocus = FALSE;

    childFocusWidgetTwo->focusOutEventReason = -1;

}

void tst_QFocusEvent::checkReason_Tab()

{

    initWidget();

    // Now test the tab key

    QTest::keyClick( childFocusWidgetOne, Qt::Key_Tab );

    QVERIFY(childFocusWidgetOne->focusOutEventRecieved);

    QVERIFY(childFocusWidgetTwo->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY(childFocusWidgetTwo->focusInEventGotFocus);

    QVERIFY( childFocusWidgetTwo->hasFocus() );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, (int) Qt::TabFocusReason );

    QCOMPARE( childFocusWidgetTwo->focusInEventReason, (int) Qt::TabFocusReason );

}

void tst_QFocusEvent::checkReason_ShiftTab()

{

    initWidget();

    // Now test the shift + tab key

    QTest::keyClick( childFocusWidgetOne, Qt::Key_Tab, Qt::ShiftModifier );

    QVERIFY(childFocusWidgetOne->focusOutEventRecieved);

    QVERIFY(childFocusWidgetTwo->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY(childFocusWidgetTwo->focusInEventGotFocus);

    QVERIFY( childFocusWidgetTwo->hasFocus() );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, (int)Qt::BacktabFocusReason );

    QCOMPARE( childFocusWidgetTwo->focusInEventReason, (int)Qt::BacktabFocusReason );

}

/*!

    In this test we verify that the Qt::KeyBacktab key is handled in a qfocusevent

*/

void tst_QFocusEvent::checkReason_BackTab()

{

#ifdef Q_OS_WIN32 // key is not supported on Windows

    QSKIP( "Backtab is not supported on Windows", SkipAll );

#else

    initWidget();

    QVERIFY( childFocusWidgetOne->hasFocus() );

    // Now test the backtab key

    QTest::keyClick( childFocusWidgetOne, Qt::Key_Backtab );

    QTest::qWait(200);

    QTRY_VERIFY(childFocusWidgetOne->focusOutEventRecieved);

    QVERIFY(childFocusWidgetTwo->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY(childFocusWidgetTwo->focusInEventGotFocus);

    QVERIFY( childFocusWidgetTwo->hasFocus() );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, int(Qt::BacktabFocusReason) );

    QCOMPARE( childFocusWidgetTwo->focusInEventReason, int(Qt::BacktabFocusReason) );

#endif

}

void tst_QFocusEvent::checkReason_Popup()

{

    initWidget();

    // Now test the popup reason

#if defined (QT3_SUPPORT)

    Q3PopupMenu* popupMenu = new Q3PopupMenu( testFocusWidget );

    popupMenu->insertItem( "Test" );

    popupMenu->popup( QPoint(0,0) );

    QTest::qWait(50);

    QTRY_VERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( !childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusInEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusOutEventRecieved );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, int(Qt::PopupFocusReason));

    popupMenu->hide();

    QVERIFY(childFocusWidgetOne->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusInEventGotFocus);

    QVERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusInEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusOutEventRecieved );

#else

    QMenu* popupMenu = new QMenu( testFocusWidget );

    popupMenu->addMenu( "Test" );

    popupMenu->popup( QPoint(0,0) );

    QTest::qWait(50);

    QTRY_VERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QTRY_VERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( !childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusInEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusOutEventRecieved );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, int(Qt::PopupFocusReason));

    popupMenu->hide();

    QVERIFY(childFocusWidgetOne->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusInEventGotFocus);

    QVERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusInEventRecieved );

    QVERIFY( !childFocusWidgetTwo->focusOutEventRecieved );

#endif

}

#ifdef Q_WS_MAC

QT_BEGIN_NAMESPACE

    extern void qt_set_sequence_auto_mnemonic(bool);

QT_END_NAMESPACE

#endif

void tst_QFocusEvent::checkReason_Shortcut()

{

    initWidget();

#ifdef Q_WS_MAC

    qt_set_sequence_auto_mnemonic(true);

#endif

    QLabel* label = new QLabel( "&Test", testFocusWidget );

    label->setBuddy( childFocusWidgetTwo );

    label->setGeometry( 10, 50, 90, 20 );

    childFocusWidgetTwo->setGeometry( 105, 50, 95, 20 );

    label->show();

    QVERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( !childFocusWidgetTwo->hasFocus() );

    QTest::keyClick( label, Qt::Key_T, Qt::AltModifier );

    QVERIFY(childFocusWidgetOne->focusOutEventRecieved);

    QVERIFY(childFocusWidgetTwo->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY(childFocusWidgetTwo->focusInEventGotFocus);

    QVERIFY( childFocusWidgetTwo->hasFocus() );

    QVERIFY( !childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, (int)Qt::ShortcutFocusReason );

    QVERIFY( childFocusWidgetTwo->focusInEventRecieved );

    QCOMPARE( childFocusWidgetTwo->focusInEventReason, (int)Qt::ShortcutFocusReason );

    QVERIFY( !childFocusWidgetTwo->focusOutEventRecieved );

    label->hide();

    QVERIFY( childFocusWidgetTwo->hasFocus() );

    QVERIFY( !childFocusWidgetOne->hasFocus() );

#ifdef Q_WS_MAC

    qt_set_sequence_auto_mnemonic(false);

#endif

}

void tst_QFocusEvent::checkReason_focusWidget()

{

    // This test checks that a widget doesn't loose

    // its focuswidget just because the focuswidget looses focus.

    QWidget window1;

    QWidget frame1;

    QWidget frame2;

    QLineEdit edit1;

    QLineEdit edit2;

    QVBoxLayout outerLayout;

    outerLayout.addWidget(&frame1);

    outerLayout.addWidget(&frame2);

    window1.setLayout(&outerLayout);

    QVBoxLayout leftLayout;

    QVBoxLayout rightLayout;

    leftLayout.addWidget(&edit1);

    rightLayout.addWidget(&edit2);

    frame1.setLayout(&leftLayout);

    frame2.setLayout(&rightLayout);

    window1.show();

    edit1.setFocus();

    QTest::qWait(100);

    edit2.setFocus();

    QVERIFY(frame1.focusWidget() != 0);

    QVERIFY(frame2.focusWidget() != 0);

}

void tst_QFocusEvent::checkReason_ActiveWindow()

{

    initWidget();

    QDialog* d = new QDialog( testFocusWidget );

    d->show();

    d->activateWindow(); // ### CDE

    QApplication::setActiveWindow(d);

    QTest::qWaitForWindowShown(d);

    QTRY_VERIFY(childFocusWidgetOne->focusOutEventRecieved);

    QVERIFY(childFocusWidgetOne->focusOutEventLostFocus);

    QVERIFY( !childFocusWidgetOne->focusInEventRecieved );

    QVERIFY( childFocusWidgetOne->focusOutEventRecieved );

    QCOMPARE( childFocusWidgetOne->focusOutEventReason, (int)Qt::ActiveWindowFocusReason);

    QVERIFY( !childFocusWidgetOne->hasFocus() );

    d->hide();

    QTest::qWait(100);

#if defined(Q_OS_IRIX)

    QEXPECT_FAIL("", "IRIX requires explicit activateWindow(), so this test does not make any sense.", Abort);

#endif

    QTRY_VERIFY(childFocusWidgetOne->focusInEventRecieved);

    QVERIFY(childFocusWidgetOne->focusInEventGotFocus);

    QVERIFY( childFocusWidgetOne->hasFocus() );

    QVERIFY( childFocusWidgetOne->focusInEventRecieved );

    QCOMPARE( childFocusWidgetOne->focusInEventReason, (int)Qt::ActiveWindowFocusReason);

}

QTEST_MAIN(tst_QFocusEvent)

#include "tst_qfocusevent.moc"