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#include <QtTest/QtTest>

#include <qapplication.h>

#include <qtoolbar.h>

#include <qcombobox.h>

#include <qwidgetaction.h>

#include <qlabel.h>

#include <qmenu.h>

#include <qmainwindow.h>

#include <qmenubar.h>

//TESTED_CLASS=

//TESTED_FILES=

class tst_QWidgetAction : public QObject

{

    Q_OBJECT

private slots:

    void defaultWidget();

    void visibilityUpdate();

    void customWidget();

    void keepOwnership();

    void visibility();

    void setEnabled();

    void popup();

    void releaseWidgetCrash();

};

void tst_QWidgetAction::defaultWidget()

{

    {

        QToolBar tb1;

        QPointer<QComboBox> combo = new QComboBox(&tb1);

        QWidgetAction *action = new QWidgetAction(0);

        action->setDefaultWidget(combo);

        QVERIFY(!combo->isVisible());

        QVERIFY(!combo->parent());

        QVERIFY(action->isVisible());

        delete action;

        QVERIFY(!combo);

    }

    {

        QToolBar tb1;

        QPointer<QComboBox> combo = new QComboBox(&tb1);

        combo->hide();

        QWidgetAction *action = new QWidgetAction(0);

        action->setDefaultWidget(combo);

        // explicitly hidden widgets should also set the action invisible

        QVERIFY(!action->isVisible());

        delete action;

    }

    {

        QPointer<QComboBox> combo = new QComboBox(0);

        combo->show();

        QWidgetAction *action = new QWidgetAction(0);

        action->setDefaultWidget(combo);

        QVERIFY(action->isVisible());

        QVERIFY(!combo->isVisible());

        delete action;

    }

    {

        QToolBar tb1;

        tb1.show();

        QToolBar tb2;

        tb2.show();

        QPointer<QComboBox> combo = new QComboBox(0);

        QWidgetAction *action = new QWidgetAction(0);

        action->setDefaultWidget(combo);

        tb1.addAction(action);

        QVERIFY(combo->parent() == &tb1);

        qApp->processEvents();

        qApp->processEvents();

        QVERIFY(combo->isVisible());

        // not supported, not supposed to work, hence the parent() check

        tb2.addAction(action);

        QVERIFY(combo->parent() == &tb1);

        tb2.removeAction(action);

        tb1.removeAction(action);

        qApp->processEvents(); //the call to hide is delayd by the toolbar layout

        QVERIFY(!combo->isVisible());

        tb2.addAction(action);

        qApp->processEvents(); //the call to hide is delayd by the toolbar layout

        qApp->processEvents();

        QVERIFY(combo->parent() == &tb2);

        QVERIFY(combo->isVisible());

        tb1.addAction(action);

        QVERIFY(combo->parent() == &tb2);

        delete action;

        QVERIFY(!combo);

    }

    {

        QWidgetAction *a = new QWidgetAction(0);

        QVERIFY(!a->defaultWidget());

        QPointer<QComboBox> combo1 = new QComboBox;

        a->setDefaultWidget(combo1);

        QVERIFY(a->defaultWidget() == combo1);

        a->setDefaultWidget(combo1);

        QVERIFY(combo1);

        QVERIFY(a->defaultWidget() == combo1);

        QPointer<QComboBox> combo2 = new QComboBox;

        QVERIFY(combo1 != combo2);

        a->setDefaultWidget(combo2);

        QVERIFY(!combo1);

        QVERIFY(a->defaultWidget() == combo2);

        delete a;

        QVERIFY(!combo2);

    }

}

void tst_QWidgetAction::visibilityUpdate()

{

    // actually keeping the widget's state in sync with the

    // action in terms of visibility is QToolBar's responsibility.

    QToolBar tb;

    tb.show();

    QComboBox *combo = new QComboBox(0);

    QWidgetAction *action = new QWidgetAction(0);

    action->setDefaultWidget(combo);

    tb.addAction(action);

    qApp->processEvents(); //the call to show is delayed by the toolbar layout

    QVERIFY(combo->isVisible());

    QVERIFY(action->isVisible());

    action->setVisible(false);

    QTest::qWait(100); //the call to hide is delayed by the toolbar layout

    QVERIFY(!combo->isVisible());

    delete action;

    // action also deletes combo

}

class ComboAction : public QWidgetAction

{

public:

    inline ComboAction(QObject *parent) : QWidgetAction(parent) {}

    QList<QWidget *> createdWidgets() const { return QWidgetAction::createdWidgets(); }

protected:

    virtual QWidget *createWidget(QWidget *parent);

};

QWidget *ComboAction::createWidget(QWidget *parent)

{

    return new QComboBox(parent);

}

void tst_QWidgetAction::customWidget()

{

    QToolBar tb1;

    tb1.show();

    QToolBar tb2;

    tb2.show();

    ComboAction *action = new ComboAction(0);

    tb1.addAction(action);

    QList<QWidget *> combos = action->createdWidgets();

    QCOMPARE(combos.count(), 1);

    QPointer<QComboBox> combo1 = qobject_cast<QComboBox *>(combos.at(0));

    QVERIFY(combo1);

    tb2.addAction(action);

    combos = action->createdWidgets();

    QCOMPARE(combos.count(), 2);

    QVERIFY(combos.at(0) == combo1);

    QPointer<QComboBox> combo2 = qobject_cast<QComboBox *>(combos.at(1));

    QVERIFY(combo2);

    tb2.removeAction(action);

    QVERIFY(combo2);

    // widget is deleted using deleteLater(), so process that posted event

    QCoreApplication::sendPostedEvents(combo2, QEvent::DeferredDelete);

    QVERIFY(!combo2);

    delete action;

    QVERIFY(!combo1);

    QVERIFY(!combo2);

}

void tst_QWidgetAction::keepOwnership()

{

    QPointer<QComboBox> combo = new QComboBox;

    QWidgetAction *action = new QWidgetAction(0);

    action->setDefaultWidget(combo);

    {

        QToolBar *tb = new QToolBar;

        tb->addAction(action);

        QVERIFY(combo->parent() == tb);

        delete tb;

    }

    QVERIFY(combo);

    delete action;

    QVERIFY(!combo);

}

void tst_QWidgetAction::visibility()

{

    {

        QWidgetAction *a = new QWidgetAction(0);

        QComboBox *combo = new QComboBox;

        a->setDefaultWidget(combo);

        QToolBar *tb = new QToolBar;

        tb->addAction(a);

        QVERIFY(!combo->isVisible());

        tb->show();

        QVERIFY(combo->isVisible());

        delete tb;

        delete a;

    }

    {

        QWidgetAction *a = new QWidgetAction(0);

        QComboBox *combo = new QComboBox;

        a->setDefaultWidget(combo);

        QToolBar *tb = new QToolBar;

        tb->addAction(a);

        QVERIFY(!combo->isVisible());

        QToolBar *tb2 = new QToolBar;

        tb->removeAction(a);

        tb2->addAction(a);

        QVERIFY(!combo->isVisible());

        tb2->show();

        QVERIFY(combo->isVisible());

        delete tb;

        delete tb2;

        delete a;

    }

}

void tst_QWidgetAction::setEnabled()

{

    QToolBar toolbar;

    QComboBox *combobox = new QComboBox;

    QAction *action = toolbar.addWidget(combobox);

    toolbar.show();

    QVERIFY(action->isEnabled());

    QVERIFY(combobox->isEnabled());

    action->setEnabled(false);

    QVERIFY(!action->isEnabled());

    QVERIFY(!combobox->isEnabled());

    action->setEnabled(true);

    QVERIFY(action->isEnabled());

    QVERIFY(combobox->isEnabled());

    combobox->setEnabled(false);

    QVERIFY(!combobox->isEnabled());

    combobox->setEnabled(true);

    QVERIFY(action->isEnabled());

    QVERIFY(combobox->isEnabled());

    QWidgetAction aw(0);

    aw.setEnabled(false);

    QVERIFY(!aw.isEnabled());

    combobox = new QComboBox;

    aw.setDefaultWidget(combobox);

    QVERIFY(!aw.isEnabled());

    QVERIFY(!combobox->isEnabled());

    // Make sure we don't change the default widget's Qt::WA_ForceDisabled attribute

    // during a normal disable/enable operation (task 207433).

    {

        QToolBar toolBar;

        QWidget widget;

        toolBar.addWidget(&widget); // creates a QWidgetAction and sets 'widget' as the default widget.

        QVERIFY(!widget.testAttribute(Qt::WA_ForceDisabled));

        toolBar.setEnabled(false);

        QVERIFY(toolBar.testAttribute(Qt::WA_ForceDisabled));

        QVERIFY(!widget.isEnabled());

        QVERIFY(!widget.testAttribute(Qt::WA_ForceDisabled));

        toolBar.setEnabled(true);

        QVERIFY(widget.isEnabled());

        QVERIFY(!widget.testAttribute(Qt::WA_ForceDisabled));

    }

}

void tst_QWidgetAction::popup()

{

    QPointer<QLabel> l = new QLabel("test");

    QWidgetAction action(0);

    action.setDefaultWidget(l);

    {

        QMenu menu;

        menu.addAction(&action);

        QTimer::singleShot(0, &menu, SLOT(close()));

        menu.exec();

    }

    QVERIFY(!l.isNull());

    delete l;

}

class CrashedAction : public QWidgetAction

{

public:

    inline CrashedAction(QObject *parent) : QWidgetAction(parent) { }

    virtual QWidget *createWidget(QWidget *parent) {

        return new QWidget(parent);

    }

};

void tst_QWidgetAction::releaseWidgetCrash()

{

    // this should not crash!

    QMainWindow *w = new QMainWindow;

    QAction *a = new CrashedAction(w);

    QMenu *menu = w->menuBar()->addMenu("Test");

    menu->addAction(a);

    delete w;

}

QTEST_MAIN(tst_QWidgetAction)

#include "tst_qwidgetaction.moc"