Long live Qt 4.5!

3 files changed, 741 insertions, 0 deletions

diff --git a/tests/auto/qworkspace/.gitignore b/tests/auto/qworkspace/.gitignore
new file mode 100644
index 0000000..73facc3
--- /dev/null
+++ b/tests/auto/qworkspace/.gitignore
@@ -0,0 +1 @@
+tst_qworkspace
diff --git a/tests/auto/qworkspace/qworkspace.pro b/tests/auto/qworkspace/qworkspace.pro
new file mode 100644
index 0000000..0d2c261
--- /dev/null
+++ b/tests/auto/qworkspace/qworkspace.pro
@@ -0,0 +1,6 @@
+load(qttest_p4)
+SOURCES  += tst_qworkspace.cpp
+
+
+
+contains(QT_CONFIG, qt3support): QT += qt3support
diff --git a/tests/auto/qworkspace/tst_qworkspace.cpp b/tests/auto/qworkspace/tst_qworkspace.cpp
new file mode 100644
index 0000000..7299374
--- /dev/null
+++ b/tests/auto/qworkspace/tst_qworkspace.cpp
@@ -0,0 +1,734 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+#include <qapplication.h>
+#include <qmainwindow.h>
+#include <qmenubar.h>
+#include <qworkspace.h>
+#if defined(QT3_SUPPORT)
+#include <q3popupmenu.h>
+#include <q3accel.h>
+#endif
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class tst_QWorkspace : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QWorkspace();
+    virtual ~tst_QWorkspace();
+
+
+protected slots:
+    void activeChanged( QWidget *w );
+    void accelActivated();
+
+public slots:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+    void cleanup();
+private slots:
+    void getSetCheck();
+    void windowActivated_data();
+    void windowActivated();
+    void accelPropagation();
+    void windowActivatedWithMinimize();
+    void showWindows();
+    void changeWindowTitle();
+    void changeModified();
+    void childSize();
+    void fixedSize();
+#if defined(Q_WS_WIN) || defined(Q_WS_X11)
+    void nativeSubWindows();
+#endif
+    void task206368();
+
+private:
+    QWidget *activeWidget;
+    bool accelPressed;
+};
+
+// Testing get/set functions
+void tst_QWorkspace::getSetCheck()
+{
+    QWorkspace obj1;
+    // bool QWorkspace::scrollBarsEnabled()
+    // void QWorkspace::setScrollBarsEnabled(bool)
+    obj1.setScrollBarsEnabled(false);
+    QCOMPARE(false, obj1.scrollBarsEnabled());
+    obj1.setScrollBarsEnabled(true);
+    QCOMPARE(true, obj1.scrollBarsEnabled());
+}
+
+tst_QWorkspace::tst_QWorkspace()
+ : activeWidget( 0 )
+{
+}
+
+tst_QWorkspace::~tst_QWorkspace()
+{
+
+}
+
+// initTestCase will be executed once before the first testfunction is executed.
+void tst_QWorkspace::initTestCase()
+{
+
+}
+
+// cleanupTestCase will be executed once after the last testfunction is executed.
+void tst_QWorkspace::cleanupTestCase()
+{
+}
+
+// init() will be executed immediately before each testfunction is run.
+void tst_QWorkspace::init()
+{
+// TODO: Add testfunction specific initialization code here.
+}
+
+// cleanup() will be executed immediately after each testfunction is run.
+void tst_QWorkspace::cleanup()
+{
+// TODO: Add testfunction specific cleanup code here.
+}
+
+void tst_QWorkspace::activeChanged( QWidget *w )
+{
+    activeWidget = w;
+}
+
+void tst_QWorkspace::windowActivated_data()
+{
+    // define the test elements we're going to use
+    QTest::addColumn<int>("count");
+
+    // create a first testdata instance and fill it with data
+    QTest::newRow( "data0" ) << 0;
+    QTest::newRow( "data1" ) << 1;
+    QTest::newRow( "data2" ) << 2;
+}
+
+void tst_QWorkspace::windowActivated()
+{
+    QMainWindow mw(0, Qt::X11BypassWindowManagerHint);
+    mw.menuBar();
+    QWorkspace *workspace = new QWorkspace(&mw);
+    workspace->setObjectName("testWidget");
+    mw.setCentralWidget(workspace);
+    QSignalSpy spy(workspace, SIGNAL(windowActivated(QWidget*)));
+    connect( workspace, SIGNAL(windowActivated(QWidget*)), this, SLOT(activeChanged(QWidget*)) );
+    mw.show();
+    qApp->setActiveWindow(&mw);
+
+    QFETCH( int, count );
+    int i;
+
+    for ( i = 0; i < count; ++i ) {
+        QWidget *widget = new QWidget(workspace, 0);
+        widget->setAttribute(Qt::WA_DeleteOnClose);
+        workspace->addWindow(widget);
+        widget->show();
+        qApp->processEvents();
+        QVERIFY( activeWidget == workspace->activeWindow() );
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+    }
+
+    QWidgetList windows = workspace->windowList();
+    QCOMPARE( (int)windows.count(), count );
+
+    for ( i = 0; i < count; ++i ) {
+        QWidget *window = windows.at(i);
+        window->showMinimized();
+        qApp->processEvents();
+        QVERIFY( activeWidget == workspace->activeWindow() );
+        if ( i == 1 )
+            QVERIFY( activeWidget == window );
+    }
+
+    for ( i = 0; i < count; ++i ) {
+        QWidget *window = windows.at(i);
+        window->showNormal();
+        qApp->processEvents();
+        QVERIFY( window == activeWidget );
+        QVERIFY( activeWidget == workspace->activeWindow() );
+    }
+    spy.clear();
+
+    while ( workspace->activeWindow() ) {
+        workspace->activeWindow()->close();
+        qApp->processEvents();
+        QVERIFY( activeWidget == workspace->activeWindow() );
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+    }
+    QVERIFY(activeWidget == 0);
+    QVERIFY(workspace->activeWindow() == 0);
+    QVERIFY(workspace->windowList().count() == 0);
+
+    {
+        workspace->hide();
+        QWidget *widget = new QWidget(workspace);
+        widget->setObjectName("normal");
+        widget->setAttribute(Qt::WA_DeleteOnClose);
+        workspace->addWindow(widget);
+        widget->show();
+        QCOMPARE(spy.count(), 0);
+        workspace->show();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY( activeWidget == widget );
+        widget->close();
+        qApp->processEvents();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY( activeWidget == 0 );
+    }
+
+    {
+        workspace->hide();
+        QWidget *widget = new QWidget(workspace);
+        widget->setObjectName("maximized");
+        widget->setAttribute(Qt::WA_DeleteOnClose);
+        workspace->addWindow(widget);
+        widget->showMaximized();
+        qApp->sendPostedEvents();
+#ifdef Q_WS_MAC
+        QEXPECT_FAIL("", "This test has never passed on Mac. QWorkspace is obsoleted -> won't fix", Abort);
+#endif
+        QCOMPARE(spy.count(), 0);
+        spy.clear();
+        workspace->show();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY( activeWidget == widget );
+        widget->close();
+        qApp->processEvents();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY( activeWidget == 0 );
+    }
+
+    {
+        QWidget *widget = new QWidget(workspace);
+        widget->setObjectName("minimized");
+        widget->setAttribute(Qt::WA_DeleteOnClose);
+        workspace->addWindow(widget);
+        widget->showMinimized();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY( activeWidget == widget );
+        QVERIFY(workspace->activeWindow() == widget);
+        widget->close();
+        qApp->processEvents();
+        QCOMPARE(spy.count(), 1);
+        spy.clear();
+        QVERIFY(workspace->activeWindow() == 0);
+        QVERIFY( activeWidget == 0 );
+    }
+}
+void tst_QWorkspace::windowActivatedWithMinimize()
+{
+    QMainWindow mw(0, Qt::X11BypassWindowManagerHint) ;
+    mw.menuBar();
+    QWorkspace *workspace = new QWorkspace(&mw);
+    workspace->setObjectName("testWidget");
+    mw.setCentralWidget(workspace);
+    QSignalSpy spy(workspace, SIGNAL(windowActivated(QWidget*)));
+    connect( workspace, SIGNAL(windowActivated(QWidget*)), this, SLOT(activeChanged(QWidget*)) );
+    mw.show();
+    qApp->setActiveWindow(&mw);
+    QWidget *widget = new QWidget(workspace);
+    widget->setObjectName("minimized1");
+    widget->setAttribute(Qt::WA_DeleteOnClose);
+    workspace->addWindow(widget);
+    QWidget *widget2 = new QWidget(workspace);
+    widget2->setObjectName("minimized2");
+    widget2->setAttribute(Qt::WA_DeleteOnClose);
+    workspace->addWindow(widget2);
+
+    widget->showMinimized();
+    QVERIFY( activeWidget == widget );
+    widget2->showMinimized();
+    QVERIFY( activeWidget == widget2 );
+
+    widget2->close();
+    qApp->processEvents();
+    QVERIFY( activeWidget == widget );
+
+    widget->close();
+    qApp->processEvents();
+    QVERIFY(workspace->activeWindow() == 0);
+    QVERIFY( activeWidget == 0 );
+
+    QVERIFY( workspace->windowList().count() == 0 );
+}
+
+void tst_QWorkspace::accelActivated()
+{
+    accelPressed = TRUE;
+}
+
+void tst_QWorkspace::accelPropagation()
+{
+#if defined (QT3_SUPPORT)
+    QSKIP( "Until QTest::keyPress() sends the events via the OS, this will skip", SkipAll);
+    // See #13987 for details of bug report related to this
+
+    QMainWindow mw(0, Qt::X11BypassWindowManagerHint) ;
+    mw.menuBar();
+    QWorkspace *workspace = new QWorkspace(&mw);
+    workspace->setObjectName("testWidget");
+    mw.setCentralWidget(workspace);
+    connect( workspace, SIGNAL(windowActivated(QWidget*)), this, SLOT(activeChanged(QWidget*)) );
+    mw.show();
+    qApp->setActiveWindow(&mw);
+
+    QMainWindow* mainWindow = new QMainWindow( workspace );
+
+    // The popup menu has to have no parent, this is vital in the
+    // original case of reproducing the bug
+
+    Q3PopupMenu* popup = new Q3PopupMenu;
+    popup->insertItem("First");
+    mainWindow->menuBar()->insertItem("Menu", popup);
+
+    Q3Accel* accel = new Q3Accel(mainWindow);
+    accel->connectItem(accel->insertItem(Qt::Key_Escape), this, SLOT(accelActivated()) );
+
+    mainWindow->show();
+
+    QTest::keyPress( mainWindow, Qt::Key_Escape );
+    QVERIFY( accelPressed );
+    accelPressed = FALSE;
+
+    QTest::mousePress( mainWindow->menuBar(), Qt::LeftButton, 0, QPoint( 5, 5 ) );
+
+    // Check the popup menu did appear to be sure
+    QVERIFY( qApp->activePopupWidget() == popup );
+
+    QTest::mouseClick( popup, Qt::LeftButton, 0, QPoint( 5, 25 ) );
+
+    // Check we did actually cause the popup menu to be closed
+    QVERIFY( !popup->isVisible() );
+
+    // Now we check that the accelarator still works
+    QTest::keyPress( mainWindow, Qt::Key_Escape );
+    QVERIFY( accelPressed );
+    delete popup;
+#else
+    QSKIP( "No Qt3Support. Skipping.", SkipAll);
+#endif
+
+}
+
+void tst_QWorkspace::showWindows()
+{
+    QWorkspace *ws = new QWorkspace( 0 );
+
+    QWidget *widget = 0;
+    ws->show();
+
+    widget = new QWidget(ws);
+    widget->setObjectName("plain1");
+    widget->show();
+    QVERIFY( widget->isVisible() );
+
+    widget = new QWidget(ws);
+    widget->setObjectName("maximized1");
+    widget->showMaximized();
+    QVERIFY( widget->isMaximized() );
+    widget->showNormal();
+    QVERIFY( !widget->isMaximized() );
+
+    widget = new QWidget(ws);
+    widget->setObjectName("minimized1");
+    widget->showMinimized();
+    QVERIFY( widget->isMinimized() );
+    widget->showNormal();
+    QVERIFY( !widget->isMinimized() );
+
+    ws->hide();
+
+    widget = new QWidget(ws);
+    widget->setObjectName("plain2");
+    ws->show();
+    QVERIFY( widget->isVisible() );
+
+    ws->hide();
+
+    widget = new QWidget(ws);
+    widget->setObjectName("maximized2");
+    widget->showMaximized();
+    QVERIFY( widget->isMaximized() );
+    ws->show();
+    QVERIFY( widget->isVisible() );
+    QVERIFY( widget->isMaximized() );
+    ws->hide();
+
+    widget = new QWidget(ws);
+    widget->setObjectName("minimized2");
+    widget->showMinimized();
+    ws->show();
+    QVERIFY( widget->isMinimized() );
+    ws->hide();
+
+    delete ws;
+}
+
+
+//#define USE_SHOW
+
+void tst_QWorkspace::changeWindowTitle()
+{
+    const QString mwc( "MainWindow's Caption" );
+    const QString mwc2( "MainWindow's New Caption" );
+    const QString wc( "Widget's Caption" );
+    const QString wc2( "Widget's New Caption" );
+
+    QMainWindow *mw = new QMainWindow(0, Qt::X11BypassWindowManagerHint);
+    mw->setWindowTitle( mwc );
+    QWorkspace *ws = new QWorkspace( mw );
+    mw->setCentralWidget( ws );
+
+
+    QWidget *widget = new QWidget( ws );
+    widget->setWindowTitle( wc );
+    ws->addWindow(widget);
+
+    QCOMPARE( mw->windowTitle(), mwc );
+
+
+#ifdef USE_SHOW
+    widget->showMaximized();
+#else
+    widget->setWindowState(Qt::WindowMaximized);
+#endif
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc).arg(wc) );
+
+#ifdef USE_SHOW
+    widget->showNormal();
+#else
+    widget->setWindowState(Qt::WindowNoState);
+#endif
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), mwc );
+
+#ifdef USE_SHOW
+    widget->showMaximized();
+#else
+    widget->setWindowState(Qt::WindowMaximized);
+#endif
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc).arg(wc) );
+    widget->setWindowTitle( wc2 );
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc).arg(wc2) );
+    mw->setWindowTitle( mwc2 );
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc2).arg(wc2) );
+
+    mw->show();
+    qApp->setActiveWindow(mw);
+
+#ifdef USE_SHOW
+    mw->showFullScreen();
+#else
+    mw->setWindowState(Qt::WindowFullScreen);
+#endif
+
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc2).arg(wc2) );
+#ifdef USE_SHOW
+    widget->showNormal();
+#else
+    widget->setWindowState(Qt::WindowNoState);
+#endif
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), mwc2 );
+#ifdef USE_SHOW
+    widget->showMaximized();
+#else
+    widget->setWindowState(Qt::WindowMaximized);
+#endif
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc2).arg(wc2) );
+
+#ifdef USE_SHOW
+    mw->showNormal();
+#else
+    mw->setWindowState(Qt::WindowNoState);
+#endif
+    qApp->processEvents();
+    QCOMPARE( mw->windowTitle(), QString("%1 - [%2]").arg(mwc2).arg(wc2) );
+#ifdef USE_SHOW
+    widget->showNormal();
+#else
+    widget->setWindowState(Qt::WindowNoState);
+#endif
+    QCOMPARE( mw->windowTitle(), mwc2 );
+
+    delete mw;
+}
+
+void tst_QWorkspace::changeModified()
+{
+    const QString mwc( "MainWindow's Caption" );
+    const QString wc( "Widget's Caption[*]" );
+
+    QMainWindow *mw = new QMainWindow(0, Qt::X11BypassWindowManagerHint);
+    mw->setWindowTitle( mwc );
+    QWorkspace *ws = new QWorkspace( mw );
+    mw->setCentralWidget( ws );
+
+    QWidget *widget = new QWidget( ws );
+    widget->setWindowTitle( wc );
+    ws->addWindow(widget);
+
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), false);
+    widget->setWindowState(Qt::WindowMaximized);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), false);
+
+    widget->setWindowState(Qt::WindowNoState);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), false);
+
+    widget->setWindowModified(true);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), true);
+    widget->setWindowState(Qt::WindowMaximized);
+    QCOMPARE( mw->isWindowModified(), true);
+    QCOMPARE( widget->isWindowModified(), true);
+
+    widget->setWindowState(Qt::WindowNoState);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), true);
+
+    widget->setWindowState(Qt::WindowMaximized);
+    QCOMPARE( mw->isWindowModified(), true);
+    QCOMPARE( widget->isWindowModified(), true);
+
+    widget->setWindowModified(false);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), false);
+
+    widget->setWindowModified(true);
+    QCOMPARE( mw->isWindowModified(), true);
+    QCOMPARE( widget->isWindowModified(), true);
+
+    widget->setWindowState(Qt::WindowNoState);
+    QCOMPARE( mw->isWindowModified(), false);
+    QCOMPARE( widget->isWindowModified(), true);
+
+    delete mw;
+}
+
+class MyChild : public QWidget
+{
+public:
+    MyChild(QWidget *parent = 0, Qt::WFlags f = 0)
+        : QWidget(parent, f)
+    {
+    }
+
+    QSize sizeHint() const
+    {
+        return QSize(234, 123);
+    }
+};
+
+void tst_QWorkspace::childSize()
+{
+    QWorkspace ws;
+
+    MyChild *child = new MyChild(&ws);
+    child->show();
+    QCOMPARE(child->size(), child->sizeHint());
+    delete child;
+
+    child = new MyChild(&ws);
+    child->setFixedSize(200, 200);
+    child->show();
+    QCOMPARE(child->size(), child->minimumSize());
+    delete child;
+
+    child = new MyChild(&ws);
+    child->resize(150, 150);
+    child->show();
+    QCOMPARE(child->size(), QSize(150,150));
+    delete child;
+}
+
+void tst_QWorkspace::fixedSize()
+{
+    QWorkspace *ws = new QWorkspace;
+    int i;
+
+    ws->resize(500, 500);
+//     ws->show();
+
+    QSize fixed(300, 300);
+    for (i = 0; i < 4; ++i) {
+        QWidget *child = new QWidget(ws);
+        child->setFixedSize(fixed);
+        child->show();
+    }
+
+    QWidgetList windows = ws->windowList();
+    for (i = 0; i < (int)windows.count(); ++i) {
+        QWidget *child = windows.at(i);
+        QCOMPARE(child->size(), fixed);
+        QCOMPARE(child->visibleRegion().boundingRect().size(), fixed);
+    }
+
+    ws->cascade();
+    ws->resize(800, 800);
+    for (i = 0; i < (int)windows.count(); ++i) {
+        QWidget *child = windows.at(i);
+        QCOMPARE(child->size(), fixed);
+        QCOMPARE(child->visibleRegion().boundingRect().size(), fixed);
+    }
+    ws->resize(500, 500);
+
+    ws->tile();
+    ws->resize(800, 800);
+    for (i = 0; i < (int)windows.count(); ++i) {
+        QWidget *child = windows.at(i);
+        QCOMPARE(child->size(), fixed);
+        QCOMPARE(child->visibleRegion().boundingRect().size(), fixed);
+    }
+    ws->resize(500, 500);
+
+    for (i = 0; i < (int)windows.count(); ++i) {
+        QWidget *child = windows.at(i);
+        delete child;
+    }
+
+    delete ws;
+}
+
+#if defined(Q_WS_WIN) || defined(Q_WS_X11)
+void tst_QWorkspace::nativeSubWindows()
+{
+    { // Add native widgets after show.
+    QWorkspace workspace;
+    workspace.addWindow(new QWidget);
+    workspace.addWindow(new QWidget);
+    workspace.show();
+#ifdef Q_WS_X11
+    qt_x11_wait_for_window_manager(&workspace);
+#endif
+
+    // No native widgets.
+    foreach (QWidget *subWindow, workspace.windowList())
+        QVERIFY(!subWindow->parentWidget()->internalWinId());
+
+    QWidget *nativeWidget = new QWidget;
+    QVERIFY(nativeWidget->winId()); // enforce native window.
+    workspace.addWindow(nativeWidget);
+
+    // All the sub-windows must be native.
+    foreach (QWidget *subWindow, workspace.windowList())
+        QVERIFY(subWindow->parentWidget()->internalWinId());
+
+    // Add a non-native widget. This should become native.
+    QWidget *subWindow = workspace.addWindow(new QWidget);
+    QVERIFY(subWindow->parentWidget()->internalWinId());
+    }
+
+    { // Add native widgets before show.
+    QWorkspace workspace;
+    workspace.addWindow(new QWidget);
+    QWidget *nativeWidget = new QWidget;
+    (void)nativeWidget->winId();
+    workspace.addWindow(nativeWidget);
+    workspace.show();
+#ifdef Q_WS_X11
+    qt_x11_wait_for_window_manager(&workspace);
+#endif
+
+    // All the sub-windows must be native.
+    foreach (QWidget *subWindow, workspace.windowList())
+        QVERIFY(subWindow->parentWidget()->internalWinId());
+    }
+
+    { // Make a sub-window native *after* it's added to the area.
+    QWorkspace workspace;
+    workspace.addWindow(new QWidget);
+    workspace.addWindow(new QWidget);
+    workspace.show();
+#ifdef Q_WS_X11
+    qt_x11_wait_for_window_manager(&workspace);
+#endif
+
+    QWidget *nativeSubWindow = workspace.windowList().last()->parentWidget();
+    QVERIFY(!nativeSubWindow->internalWinId());
+    (void)nativeSubWindow->winId();
+
+    // All the sub-windows should be native at this point.
+    foreach (QWidget *subWindow, workspace.windowList())
+        QVERIFY(subWindow->parentWidget()->internalWinId());
+    }
+}
+#endif
+
+void tst_QWorkspace::task206368()
+{
+    // Make sure the internal list of iconified windows doesn't contain dangling pointers.
+    QWorkspace workspace;
+    QWidget *child = new QWidget;
+    QWidget *window = workspace.addWindow(child);
+    workspace.show();
+    child->showMinimized();
+    delete window;
+    // This shouldn't crash.
+    workspace.arrangeIcons();
+}
+
+QTEST_MAIN(tst_QWorkspace)
+#include "tst_qworkspace.moc"