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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#include <qcoreapplication.h>
#include <qdebug.h>
#include <qstackedwidget.h>
#include <qpushbutton.h>
#include <QHBoxLayout>
#include <qlineedit.h>
#include <QtWidgets/private/qapplication_p.h>
class tst_QStackedWidget : public QObject
{
Q_OBJECT
public:
tst_QStackedWidget();
virtual ~tst_QStackedWidget();
private slots:
void getSetCheck();
void testMinimumSize();
void dynamicPages();
};
tst_QStackedWidget::tst_QStackedWidget()
{
}
tst_QStackedWidget::~tst_QStackedWidget()
{
}
// Testing that stackedwidget respect the minimum size of it's contents (task 95319)
void tst_QStackedWidget::testMinimumSize()
{
QWidget w;
QStackedWidget sw(&w);
QPushButton button("Text", &sw);
sw.addWidget(&button);
QHBoxLayout hboxLayout;
hboxLayout.addWidget(&sw);
w.setLayout(&hboxLayout);
w.show();
QVERIFY(w.minimumSize() != QSize(0, 0));
}
// Testing get/set functions
void tst_QStackedWidget::getSetCheck()
{
QStackedWidget obj1;
// int QStackedWidget::currentIndex()
// void QStackedWidget::setCurrentIndex(int)
obj1.setCurrentIndex(0);
QCOMPARE(-1, obj1.currentIndex());
obj1.setCurrentIndex(INT_MIN);
QCOMPARE(-1, obj1.currentIndex());
obj1.setCurrentIndex(INT_MAX);
QCOMPARE(-1, obj1.currentIndex());
// QWidget * QStackedWidget::currentWidget()
// void QStackedWidget::setCurrentWidget(QWidget *)
QWidget *var2 = new QWidget();
obj1.addWidget(var2);
obj1.setCurrentWidget(var2);
QCOMPARE(var2, obj1.currentWidget());
// Disabled, task to fix is 128939.
#if 0
// Layouts assert on any unknown widgets here, 0-pointers included.
// This seems wrong behavior, since the setCurrentIndex(int), which
// is really a convenience function for setCurrentWidget(QWidget*),
// has no problem handling out-of-bounds indices.
// ("convenience function" => "just another way of achieving the
// same goal")
obj1.setCurrentWidget((QWidget *)0);
QCOMPARE(obj1.currentWidget(), var2);
#endif
delete var2;
}
// QTBUG-18242, a widget that deletes its children in hideEvent().
// This caused a crash in QStackedLayout::setCurrentIndex() since
// the focus widget was destroyed while hiding the previous page.
class TestPage : public QWidget
{
public:
TestPage (bool staticWidgets = false) : QWidget(0), m_staticWidgets(staticWidgets)
{
new QVBoxLayout (this);
}
~TestPage() {
destroyWidgets();
}
void setN(int n)
{
m_n = n;
if (m_staticWidgets)
createWidgets();
}
virtual void showEvent (QShowEvent *) override
{
if (!m_staticWidgets)
createWidgets();
}
virtual void hideEvent (QHideEvent *) override
{
if (!m_staticWidgets)
destroyWidgets();
}
private:
void createWidgets() {
for (int i = 0; i < m_n; ++i) {
QLineEdit *le = new QLineEdit(this);
le->setObjectName(QLatin1String("lineEdit") + QString::number(i));
layout ()->addWidget(le);
m_les << le;
}
}
void destroyWidgets()
{
qDeleteAll(m_les);
m_les.clear ();
}
int m_n;
const bool m_staticWidgets;
QList<QLineEdit*> m_les;
};
void tst_QStackedWidget::dynamicPages()
{
if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
QSKIP("Wayland: This fails. Figure out why.");
QStackedWidget stackedWidget;
QStackedWidget *sw = &stackedWidget;
TestPage *w1 = new TestPage(true);
w1->setN(3);
TestPage *w2 = new TestPage;
w2->setN(3);
sw->addWidget(w1);
sw->addWidget(w2);
QLineEdit *le11 = w1->findChild<QLineEdit*>(QLatin1String("lineEdit1"));
le11->setFocus(); // set focus to second widget in the page
sw->resize(200, 200);
sw->show();
QApplicationPrivate::setActiveWindow(sw);
QVERIFY(QTest::qWaitForWindowActive(sw));
QTRY_COMPARE(QApplication::focusWidget(), le11);
sw->setCurrentIndex(1);
QLineEdit *le22 = w2->findChild<QLineEdit*>(QLatin1String("lineEdit2"));
le22->setFocus();
QTRY_COMPARE(QApplication::focusWidget(), le22);
// Going back should move focus back to le11
sw->setCurrentIndex(0);
QTRY_COMPARE(QApplication::focusWidget(), le11);
}
QTEST_MAIN(tst_QStackedWidget)
#include "tst_qstackedwidget.moc"
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