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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/


#include <QtTest/QtTest>


#include <qstatusbar.h>
#include <QLabel>
#include <QMainWindow>
#include <QSizeGrip>

class tst_QStatusBar: public QObject
{
    Q_OBJECT

public:
    tst_QStatusBar();
    virtual ~tst_QStatusBar();


protected slots:
    void messageChanged(const QString&);

public slots:
    void initTestCase();
    void cleanupTestCase();
    void init();
    void cleanup();

private slots:
    void tempMessage();
    void insertWidget();
    void insertPermanentWidget();
    void setSizeGripEnabled();
    void task194017_hiddenWidget();
    void QTBUG4334_hiddenOnMaximizedWindow();
    void QTBUG25492_msgtimeout();
    void messageChangedSignal();

private:
    QStatusBar *testWidget;
    QString currentMessage;
};

tst_QStatusBar::tst_QStatusBar()
{
}

tst_QStatusBar::~tst_QStatusBar()
{
}

void tst_QStatusBar::init()
{
    testWidget = new QStatusBar;
    connect(testWidget, SIGNAL(messageChanged(QString)), this, SLOT(messageChanged(QString)));

    QWidget *item1 = new QWidget(testWidget);
    testWidget->addWidget(item1);
    // currentMessage needs to be null as the code relies on this
    currentMessage = QString();
}

void tst_QStatusBar::cleanup()
{
    delete testWidget;
}

void tst_QStatusBar::initTestCase()
{
}

void tst_QStatusBar::cleanupTestCase()
{
}

void tst_QStatusBar::messageChanged(const QString &m)
{
    currentMessage = m;
}

void tst_QStatusBar::tempMessage()
{
    QVERIFY(testWidget->currentMessage().isNull());
    QVERIFY(currentMessage.isNull());

    testWidget->showMessage("Ready", 500);
    QCOMPARE(testWidget->currentMessage(), QString("Ready"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    QTRY_VERIFY(testWidget->currentMessage().isNull());
    QVERIFY(currentMessage.isNull());

    testWidget->showMessage("Ready again", 500);
    QCOMPARE(testWidget->currentMessage(), QString("Ready again"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    testWidget->clearMessage();
    QVERIFY(testWidget->currentMessage().isNull());
    QVERIFY(currentMessage.isNull());
}

void tst_QStatusBar::insertWidget()
{
    QStatusBar sb;
    sb.addPermanentWidget(new QLabel("foo"));
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertWidget: Index out of range (-1), appending widget");
    QCOMPARE(sb.insertWidget(-1, new QLabel("foo")), 0);
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertWidget: Index out of range (2), appending widget");
    QCOMPARE(sb.insertWidget(2, new QLabel("foo")), 1);
    QCOMPARE(sb.insertWidget(0, new QLabel("foo")), 0);
    QCOMPARE(sb.insertWidget(3, new QLabel("foo")), 3);
}

void tst_QStatusBar::insertPermanentWidget()
{
    QStatusBar sb;
    sb.addWidget(new QLabel("foo"));
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertPermanentWidget: Index out of range (-1), appending widget");
    QCOMPARE(sb.insertPermanentWidget(-1, new QLabel("foo")), 1);
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertPermanentWidget: Index out of range (0), appending widget");
    QCOMPARE(sb.insertPermanentWidget(0, new QLabel("foo")), 2);
    QCOMPARE(sb.insertPermanentWidget(2, new QLabel("foo")), 2);
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertPermanentWidget: Index out of range (5), appending widget");
    QCOMPARE(sb.insertPermanentWidget(5, new QLabel("foo")), 4);
    QCOMPARE(sb.insertWidget(1, new QLabel("foo")), 1);
    QTest::ignoreMessage(QtWarningMsg, "QStatusBar::insertPermanentWidget: Index out of range (1), appending widget");
    QCOMPARE(sb.insertPermanentWidget(1, new QLabel("foo")), 6);
}

void tst_QStatusBar::setSizeGripEnabled()
{
    QMainWindow mainWindow;
    QPointer<QStatusBar> statusBar = mainWindow.statusBar();
    QVERIFY(statusBar);
    mainWindow.show();
    QVERIFY(QTest::qWaitForWindowExposed(&mainWindow));

    QTRY_VERIFY(statusBar->isVisible());
    QPointer<QSizeGrip> sizeGrip = statusBar->findChild<QSizeGrip *>();
    QVERIFY(sizeGrip);
    QVERIFY(sizeGrip->isVisible());

    statusBar->setSizeGripEnabled(true);
    QVERIFY(sizeGrip);
    QVERIFY(sizeGrip->isVisible());

    statusBar->hide();
    QVERIFY(!sizeGrip->isVisible());
    statusBar->show();
    QVERIFY(sizeGrip->isVisible());

    sizeGrip->setVisible(false);
    QVERIFY(!sizeGrip->isVisible());
    statusBar->hide();
    statusBar->show();
    QVERIFY(!sizeGrip->isVisible());

    statusBar->setSizeGripEnabled(false);
    QVERIFY(!sizeGrip);

    qApp->processEvents();
#ifndef Q_OS_MAC // Work around Lion fullscreen issues on CI system - QTQAINFRA-506
    mainWindow.showFullScreen();
#endif
    QVERIFY(QTest::qWaitForWindowExposed(&mainWindow));
    qApp->processEvents();

    mainWindow.setStatusBar(new QStatusBar(&mainWindow));
    //we now call deleteLater on the previous statusbar
    QCoreApplication::sendPostedEvents(0, QEvent::DeferredDelete);
    QVERIFY(!statusBar);
    statusBar = mainWindow.statusBar();
    QVERIFY(statusBar);

    sizeGrip = statusBar->findChild<QSizeGrip *>();
    QVERIFY(sizeGrip);
    QVERIFY(!sizeGrip->isVisible());

    statusBar->setSizeGripEnabled(true);
    QVERIFY(!sizeGrip->isVisible());

    qApp->processEvents();
#ifndef Q_OS_MAC
    mainWindow.showNormal();
#endif
    qApp->processEvents();
    QTRY_VERIFY(sizeGrip->isVisible());
}

void tst_QStatusBar::task194017_hiddenWidget()
{
    QStatusBar sb;

    QWidget *label= new QLabel("bar",&sb);
    sb.addWidget(label);
    sb.show();
    QVERIFY(label->isVisible());
    sb.showMessage("messssage");
    QVERIFY(!label->isVisible());
    sb.hide();
    QVERIFY(!label->isVisible());
    sb.show();
    QVERIFY(!label->isVisible());
    sb.clearMessage();
    QVERIFY(label->isVisible());
    label->hide();
    QVERIFY(!label->isVisible());
    sb.showMessage("messssage");
    QVERIFY(!label->isVisible());
    sb.clearMessage();
    QVERIFY(!label->isVisible());
    sb.hide();
    QVERIFY(!label->isVisible());
    sb.show();
    QVERIFY(!label->isVisible());
}

void tst_QStatusBar::QTBUG4334_hiddenOnMaximizedWindow()
{
    QMainWindow main;
    QStatusBar statusbar;
    statusbar.setSizeGripEnabled(true);
    main.setStatusBar(&statusbar);
    main.showMaximized();
    QVERIFY(QTest::qWaitForWindowActive(&main));
#ifndef Q_OS_MAC
    QVERIFY(!statusbar.findChild<QSizeGrip*>()->isVisible());
#endif
    main.showNormal();
    QVERIFY(QTest::qWaitForWindowExposed(&main));
    QVERIFY(statusbar.findChild<QSizeGrip*>()->isVisible());
    main.showFullScreen();
    QVERIFY(QTest::qWaitForWindowExposed(&main));
    QVERIFY(!statusbar.findChild<QSizeGrip*>()->isVisible());
}

void tst_QStatusBar::QTBUG25492_msgtimeout()
{
    QVERIFY(testWidget->currentMessage().isNull());
    QVERIFY(currentMessage.isNull());
    testWidget->show();

    // Set display message forever first
    testWidget->showMessage("Ready", 0);
    QCOMPARE(testWidget->currentMessage(), QString("Ready"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    // Set display message for 2 seconds
    QElapsedTimer t;
    t.start();
    testWidget->showMessage("Ready 2000", 2000);
    QCOMPARE(testWidget->currentMessage(), QString("Ready 2000"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    // Message disappears after 2 seconds
    QTRY_VERIFY(testWidget->currentMessage().isNull());
    qint64 ts = t.elapsed();

    // XXX: ideally ts should be 2000, but sometimes it appears to go away early, probably due to timer granularity.
    QVERIFY2(ts >= 1800, qPrintable("Timer was " + QString::number(ts)));
    if (ts < 2000)
        qWarning("QTBUG25492_msgtimeout: message vanished early, should be >= 2000, was %lld", ts);
    QVERIFY(currentMessage.isNull());

    // Set display message for 2 seconds first
    testWidget->showMessage("Ready 25492", 2000);
    QCOMPARE(testWidget->currentMessage(), QString("Ready 25492"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    // Set display message forever again
    testWidget->showMessage("Ready 25492", 0);
    QCOMPARE(testWidget->currentMessage(), QString("Ready 25492"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);

    QTest::qWait(3000);

    // Message displays forever
    QCOMPARE(testWidget->currentMessage(), QString("Ready 25492"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);
}

void tst_QStatusBar::messageChangedSignal()
{
    QVERIFY(testWidget->currentMessage().isNull());
    QVERIFY(currentMessage.isNull());
    testWidget->show();

    QSignalSpy spy(testWidget, SIGNAL(messageChanged(QString)));
    testWidget->showMessage("Ready", 0);
    QCOMPARE(testWidget->currentMessage(), QString("Ready"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);
    QCOMPARE(spy.count(), 1);
    QCOMPARE(spy.takeFirst().at(0).toString(), currentMessage);
    testWidget->clearMessage();
    QCOMPARE(testWidget->currentMessage(), QString());
    QCOMPARE(testWidget->currentMessage(), currentMessage);
    QCOMPARE(spy.count(), 1);
    QCOMPARE(spy.takeFirst().at(0).toString(), currentMessage);
    testWidget->showMessage("Ready", 0);
    testWidget->showMessage("Ready", 0);
    QCOMPARE(testWidget->currentMessage(), QString("Ready"));
    QCOMPARE(testWidget->currentMessage(), currentMessage);
    QCOMPARE(spy.count(), 1);
    QCOMPARE(spy.takeFirst().at(0).toString(), currentMessage);
}

QTEST_MAIN(tst_QStatusBar)
#include "tst_qstatusbar.moc"