// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only


#include <QTest>
#include <QTimer>
#include <QSignalSpy>

#include <qcoreapplication.h>
#include <qdebug.h>
#include <qtoolbutton.h>
#include <qmenu.h>
#include <qaction.h>
#include <qstyleoption.h>
#include <qscreen.h>
#include <qlabel.h>

#include <QtWidgets/private/qapplication_p.h>

class tst_QToolButton : public QObject
{
Q_OBJECT

public:
    tst_QToolButton();
    virtual ~tst_QToolButton();

private slots:
    void getSetCheck();
    void triggered();
    void collapseTextOnPriority();
    void task230994_iconSize();
    void task176137_autoRepeatOfAction();
    void qtbug_26956_popupTimerDone();
    void qtbug_34759_sizeHintResetWhenSettingMenu();
    void defaultActionSynced();
    void deleteInHandler();

protected slots:
    void sendMouseClick();
private:
    QPointer<QWidget> m_menu;
};

class MyToolButton : public QToolButton
{
    friend class tst_QToolButton;
public:
    void initStyleOption(QStyleOptionToolButton *option) const override
    {
        QToolButton::initStyleOption(option);
    }
};


tst_QToolButton::tst_QToolButton()
{
}

tst_QToolButton::~tst_QToolButton()
{
}

// Testing get/set functions
void tst_QToolButton::getSetCheck()
{
    QToolButton obj1;
    // QMenu* QToolButton::menu()
    // void QToolButton::setMenu(QMenu*)
    QMenu *var1 = new QMenu;
    obj1.setMenu(var1);
    QCOMPARE(var1, obj1.menu());
    obj1.setMenu((QMenu *)0);
    QCOMPARE((QMenu *)0, obj1.menu());
    delete var1;

    // ToolButtonPopupMode QToolButton::popupMode()
    // void QToolButton::setPopupMode(ToolButtonPopupMode)
    obj1.setPopupMode(QToolButton::ToolButtonPopupMode(QToolButton::DelayedPopup));
    QCOMPARE(QToolButton::ToolButtonPopupMode(QToolButton::DelayedPopup), obj1.popupMode());
    obj1.setPopupMode(QToolButton::ToolButtonPopupMode(QToolButton::MenuButtonPopup));
    QCOMPARE(QToolButton::ToolButtonPopupMode(QToolButton::MenuButtonPopup), obj1.popupMode());
    obj1.setPopupMode(QToolButton::ToolButtonPopupMode(QToolButton::InstantPopup));
    QCOMPARE(QToolButton::ToolButtonPopupMode(QToolButton::InstantPopup), obj1.popupMode());

    // bool QToolButton::autoRaise()
    // void QToolButton::setAutoRaise(bool)
    obj1.setAutoRaise(false);
    QCOMPARE(false, obj1.autoRaise());
    obj1.setAutoRaise(true);
    QCOMPARE(true, obj1.autoRaise());

    // QAction * QToolButton::defaultAction()
    // void QToolButton::setDefaultAction(QAction *)
    QAction *var4 = new QAction(0);
    obj1.setDefaultAction(var4);
    QCOMPARE(var4, obj1.defaultAction());
    obj1.setDefaultAction((QAction *)0);
    QCOMPARE((QAction *)0, obj1.defaultAction());
    delete var4;
}

void tst_QToolButton::triggered()
{
    if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
        QSKIP("Wayland: This fails. Figure out why.");

    qRegisterMetaType<QAction *>("QAction *");
    QWidget mainWidget;
    mainWidget.setWindowTitle(QStringLiteral("triggered"));
    mainWidget.resize(200, 200);
    mainWidget.move(QGuiApplication::primaryScreen()->availableGeometry().center() - QPoint(100, 100));
    QToolButton *toolButton = new QToolButton(&mainWidget);
    QSignalSpy spy(toolButton,SIGNAL(triggered(QAction*)));
    QScopedPointer<QMenu> menu(new QMenu(QStringLiteral("Menu")));
    QAction *one = menu->addAction("one");
    menu->addAction("two");
    QAction *defaultAction = new QAction(QStringLiteral("def"), this);

    toolButton->setMenu(menu.data());
    toolButton->setDefaultAction(defaultAction);

    mainWidget.show();
    QApplicationPrivate::setActiveWindow(&mainWidget);
    QVERIFY(QTest::qWaitForWindowActive(&mainWidget));

    defaultAction->trigger();
    QCOMPARE(spy.size(),1);
    QCOMPARE(qvariant_cast<QAction *>(spy.at(0).at(0)), defaultAction);

    m_menu = menu.data();

    QTimer *timer = new QTimer(this);
    timer->setInterval(50);
    connect(timer, SIGNAL(timeout()), this, SLOT(sendMouseClick()));
    timer->start();
    QTimer::singleShot(10000, &mainWidget, SLOT(close())); // Emergency bail-out
    toolButton->showMenu();
    QTRY_COMPARE(spy.size(),2);
    QCOMPARE(qvariant_cast<QAction *>(spy.at(1).at(0)), one);
}

void tst_QToolButton::collapseTextOnPriority()
{
    MyToolButton button;
    button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    QAction action(button.style()->standardIcon(QStyle::SP_ArrowBack), "test", 0);
    button.setDefaultAction(&action);

    QStyleOptionToolButton option;
    button.initStyleOption(&option);
    QCOMPARE(option.toolButtonStyle, Qt::ToolButtonTextBesideIcon);
    action.setPriority(QAction::LowPriority);
    button.initStyleOption(&option);
    QCOMPARE(option.toolButtonStyle, Qt::ToolButtonIconOnly);
}


void tst_QToolButton::task230994_iconSize()
{
    //we check that the iconsize returned bu initStyleOption is valid
    //when the toolbutton has no parent
    MyToolButton button;
    QStyleOptionToolButton option;
    button.initStyleOption(&option);
    QVERIFY(option.iconSize.isValid());
}

void tst_QToolButton::task176137_autoRepeatOfAction()
{
    if (QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive))
        QSKIP("Wayland: This fails. Figure out why.");

    QAction action(0);
    QWidget mainWidget;
    mainWidget.setWindowTitle(QStringLiteral("task176137_autoRepeatOfAction"));
    mainWidget.resize(200, 200);
    mainWidget.move(QGuiApplication::primaryScreen()->availableGeometry().center() - QPoint(100, 100));
    QToolButton *toolButton = new QToolButton(&mainWidget);
    toolButton->setDefaultAction (&action);
    QLabel *label = new QLabel(QStringLiteral("This test takes a while."), &mainWidget);
    label->move(0, 50);

    mainWidget.show();
    QApplicationPrivate::setActiveWindow(&mainWidget);
    QVERIFY(QTest::qWaitForWindowActive(&mainWidget));

    QSignalSpy spy(&action,SIGNAL(triggered()));
    QTest::mousePress (toolButton, Qt::LeftButton);
    QTest::qWait(2000);
    QTest::mouseRelease (toolButton, Qt::LeftButton, {}, {});
    QCOMPARE(spy.size(),1);

    // try again with auto repeat
    toolButton->setAutoRepeat (true);
    QSignalSpy repeatSpy(&action,SIGNAL(triggered())); // new spy
    QTest::mousePress (toolButton, Qt::LeftButton);
    QTest::qWait(3000);
    QTest::mouseRelease (toolButton, Qt::LeftButton, {}, {});
    const qreal expected = (3000 - toolButton->autoRepeatDelay()) / toolButton->autoRepeatInterval() + 1;
    //we check that the difference is small (on some systems timers are not super accurate)
    qreal diff = (expected - repeatSpy.size()) / expected;
    QVERIFY2(qAbs(diff) < 0.2, qPrintable(
        QString("expected: %1, actual: %2, diff (fraction): %3")
            .arg(expected)
            .arg(repeatSpy.size())
            .arg(diff)));
}


void tst_QToolButton::sendMouseClick()
{
    if (m_menu.isNull()) {
        qWarning("m_menu is NULL");
        return;
    }
    if (!m_menu->isVisible())
        return;
    QTest::mouseClick(m_menu.data(), Qt::LeftButton, {}, QPoint(7, 7));
    if (QTimer *timer = qobject_cast<QTimer *>(sender())) {
        timer->stop();
        timer->deleteLater();
    }
}

void tst_QToolButton::qtbug_26956_popupTimerDone()
{
    QToolButton *tb = new QToolButton;
    tb->setMenu(new QMenu(tb));
    tb->menu()->addAction("Qt");
    tb->deleteLater();
    tb->showMenu();
}

void tst_QToolButton::qtbug_34759_sizeHintResetWhenSettingMenu()
{
    // There is no reliable way of checking what's ultimately a style-dependent
    // sizing. So the idea is checking if the size is the "correct" size w.r.t.
    // another toolbutton which has had a menu set before it was shown for the first time

    QToolButton button1;
    QToolButton button2;

    button1.setToolButtonStyle(Qt::ToolButtonIconOnly);
    button1.setPopupMode(QToolButton::MenuButtonPopup);

    button2.setToolButtonStyle(Qt::ToolButtonIconOnly);
    button2.setPopupMode(QToolButton::MenuButtonPopup);

    button2.setMenu(new QMenu(&button2));

    button1.show();
    button2.show();

    QVERIFY(QTest::qWaitForWindowExposed(&button1));
    QVERIFY(QTest::qWaitForWindowExposed(&button2));

    button1.setMenu(new QMenu(&button1));
    QTRY_COMPARE(button1.sizeHint(), button2.sizeHint());
}

void tst_QToolButton::defaultActionSynced()
{
    QAction a;
    a.setCheckable(true);

    QToolButton tb;
    tb.setDefaultAction(&a);
    QVERIFY(tb.isCheckable());

    QSignalSpy tbSpy(&tb, SIGNAL(toggled(bool)));
    QSignalSpy aSpy(&a, SIGNAL(toggled(bool)));

    int tbToggledCount = 0;
    int aToggledCount = 0;

    tb.setChecked(true);
    QVERIFY(a.isChecked());
    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), ++aToggledCount);
    tb.setChecked(false);
    QVERIFY(!a.isChecked());
    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), ++aToggledCount);

    a.setChecked(true);
    QVERIFY(tb.isChecked());
    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), ++aToggledCount);
    a.setChecked(false);
    QVERIFY(!tb.isChecked());
    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), ++aToggledCount);

    QAction b;
    QSignalSpy bSpy(&b, SIGNAL(toggled(bool)));
    int bToggledCount = 0;
    tb.setDefaultAction(&b);
    QVERIFY(!tb.isCheckable());
    b.setCheckable(true);
    QVERIFY(tb.isCheckable());

    tb.setChecked(true);
    QVERIFY(!a.isChecked());
    QVERIFY(b.isChecked());

    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), aToggledCount);
    QCOMPARE(bSpy.size(), ++bToggledCount);

    tb.click();
    QVERIFY(!a.isChecked());
    QVERIFY(!tb.isChecked());
    QVERIFY(!b.isChecked());
    QCOMPARE(tbSpy.size(), ++tbToggledCount);
    QCOMPARE(aSpy.size(), aToggledCount);
    QCOMPARE(bSpy.size(), ++bToggledCount);
}

void tst_QToolButton::deleteInHandler()
{
    // Tests that if something deletes the button
    // while its event handler is still on the callstack, we don't crash

    QPointer<QToolButton> tb = new QToolButton();
    tb->show();
    QVERIFY(QTest::qWaitForWindowActive(tb));

    connect(tb, &QToolButton::clicked, this, [tb] {
        delete tb;
    });

    QTest::mouseClick(tb, Qt::LeftButton);
    QVERIFY(!tb);
}

QTEST_MAIN(tst_QToolButton)
#include "tst_qtoolbutton.moc"