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#include <QtTest/QtTest>

#include <qapplication.h>

#include <qtabbar.h>

#include <qpushbutton.h>

#include <qstyle.h>

#include "../../shared/util.h"

class tst_QTabBar : public QObject

{

    Q_OBJECT

public:

    tst_QTabBar();

    virtual ~tst_QTabBar();

public slots:

    void initTestCase();

    void cleanupTestCase();

    void init();

private slots:

    void getSetCheck();

    void setIconSize();

    void setIconSize_data();

    void testCurrentChanged_data();

    void testCurrentChanged();

    void insertAtCurrentIndex();

    void removeTab_data();

    void removeTab();

    void setElideMode_data();

    void setElideMode();

    void setUsesScrollButtons_data();

    void setUsesScrollButtons();

    void removeLastTab();

    void closeButton();

    void tabButton_data();

    void tabButton();

    void selectionBehaviorOnRemove_data();

    void selectionBehaviorOnRemove();

    void moveTab_data();

    void moveTab();

    void task251184_removeTab();

    void changeTitleWhileDoubleClickingTab();

};

// Testing get/set functions

void tst_QTabBar::getSetCheck()

{

    QTabBar obj1;

    obj1.addTab("Tab1");

    obj1.addTab("Tab2");

    obj1.addTab("Tab3");

    obj1.addTab("Tab4");

    obj1.addTab("Tab5");

    // Shape QTabBar::shape()

    // void QTabBar::setShape(Shape)

    obj1.setShape(QTabBar::Shape(QTabBar::RoundedNorth));

    QCOMPARE(QTabBar::Shape(QTabBar::RoundedNorth), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::RoundedSouth));

    QCOMPARE(QTabBar::Shape(QTabBar::RoundedSouth), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::RoundedWest));

    QCOMPARE(QTabBar::Shape(QTabBar::RoundedWest), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::RoundedEast));

    QCOMPARE(QTabBar::Shape(QTabBar::RoundedEast), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::TriangularNorth));

    QCOMPARE(QTabBar::Shape(QTabBar::TriangularNorth), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::TriangularSouth));

    QCOMPARE(QTabBar::Shape(QTabBar::TriangularSouth), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::TriangularWest));

    QCOMPARE(QTabBar::Shape(QTabBar::TriangularWest), obj1.shape());

    obj1.setShape(QTabBar::Shape(QTabBar::TriangularEast));

    QCOMPARE(QTabBar::Shape(QTabBar::TriangularEast), obj1.shape());

    // bool QTabBar::drawBase()

    // void QTabBar::setDrawBase(bool)

    obj1.setDrawBase(false);

    QCOMPARE(false, obj1.drawBase());

    obj1.setDrawBase(true);

    QCOMPARE(true, obj1.drawBase());

    // int QTabBar::currentIndex()

    // void QTabBar::setCurrentIndex(int)

    obj1.setCurrentIndex(0);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(INT_MIN);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(INT_MAX);

    QCOMPARE(0, obj1.currentIndex());

    obj1.setCurrentIndex(4);

    QCOMPARE(4, obj1.currentIndex());

}

tst_QTabBar::tst_QTabBar()

{

}

tst_QTabBar::~tst_QTabBar()

{

}

void tst_QTabBar::initTestCase()

{

}

void tst_QTabBar::cleanupTestCase()

{

}

void tst_QTabBar::init()

{

}

void tst_QTabBar::setIconSize_data()

{

    QTest::addColumn<int>("sizeToSet");

    QTest::addColumn<int>("expectedWidth");

    int iconDefault = qApp->style()->pixelMetric(QStyle::PM_TabBarIconSize);

    int small = qApp->style()->pixelMetric(QStyle::PM_SmallIconSize);

    int large = qApp->style()->pixelMetric(QStyle::PM_LargeIconSize);

    QTest::newRow("default") << -1 << iconDefault;

    QTest::newRow("zero") << 0 << 0;

    QTest::newRow("same as default") << iconDefault << iconDefault;

    QTest::newRow("large") << large << large;

    QTest::newRow("small") << small << small;

}

void tst_QTabBar::setIconSize()

{

    QFETCH(int, sizeToSet);

    QFETCH(int, expectedWidth);

    QTabBar tabBar;

    tabBar.setIconSize(QSize(sizeToSet, sizeToSet));

    QCOMPARE(tabBar.iconSize().width(), expectedWidth);

}

void tst_QTabBar::testCurrentChanged_data()

{

    QTest::addColumn<int>("tabToSet");

    QTest::addColumn<int>("expectedCount");

    QTest::newRow("pressAntotherTab") << 1 << 2;

    QTest::newRow("pressTheSameTab") << 0 << 1;

}

void tst_QTabBar::testCurrentChanged()

{

    QFETCH(int, tabToSet);

    QFETCH(int, expectedCount);

    QTabBar tabBar;

    QSignalSpy spy(&tabBar, SIGNAL(currentChanged(int)));

    tabBar.addTab("Tab1");

    tabBar.addTab("Tab2");

    QCOMPARE(tabBar.currentIndex(), 0);

    tabBar.setCurrentIndex(tabToSet);

    QCOMPARE(tabBar.currentIndex(), tabToSet);

    QCOMPARE(spy.count(), expectedCount);

}

void tst_QTabBar::insertAtCurrentIndex()

{

    QTabBar tabBar;

    tabBar.addTab("Tab1");

    QCOMPARE(tabBar.currentIndex(), 0);

    tabBar.insertTab(0, "Tab2");

    QCOMPARE(tabBar.currentIndex(), 1);

    tabBar.insertTab(0, "Tab3");

    QCOMPARE(tabBar.currentIndex(), 2);

    tabBar.insertTab(2, "Tab4");

    QCOMPARE(tabBar.currentIndex(), 3);

}

void tst_QTabBar::removeTab_data()

{

    QTest::addColumn<int>("currentIndex");

    QTest::addColumn<int>("deleteIndex");

    QTest::addColumn<int>("spyCount");

    QTest::addColumn<int>("finalIndex");

    QTest::newRow("deleteEnd") << 0 << 2 << 0 << 0;

    QTest::newRow("deleteEndWithIndexOnEnd") << 2 << 2 << 1 << 1;

    QTest::newRow("deleteMiddle") << 2 << 1 << 1 << 1;

    QTest::newRow("deleteMiddleOnMiddle") << 1 << 1 << 1 << 1;

}

void tst_QTabBar::removeTab()

{

    QTabBar tabbar;

    QFETCH(int, currentIndex);

    QFETCH(int, deleteIndex);

    tabbar.addTab("foo");

    tabbar.addTab("bar");

    tabbar.addTab("baz");

    tabbar.setCurrentIndex(currentIndex);

    QSignalSpy spy(&tabbar, SIGNAL(currentChanged(int)));

    tabbar.removeTab(deleteIndex);

    QTEST(spy.count(), "spyCount");

    QTEST(tabbar.currentIndex(), "finalIndex");

}

void tst_QTabBar::setElideMode_data()

{

    QTest::addColumn<int>("tabElideMode");

    QTest::addColumn<int>("expectedMode");

    QTest::newRow("default") << -128 << qApp->style()->styleHint(QStyle::SH_TabBar_ElideMode);

    QTest::newRow("explicit default") << qApp->style()->styleHint(QStyle::SH_TabBar_ElideMode)

                                      << qApp->style()->styleHint(QStyle::SH_TabBar_ElideMode);

    QTest::newRow("None") << int(Qt::ElideNone) << int(Qt::ElideNone);

    QTest::newRow("Left") << int(Qt::ElideLeft) << int(Qt::ElideLeft);

    QTest::newRow("Center") << int(Qt::ElideMiddle) << int(Qt::ElideMiddle);

    QTest::newRow("Right") << int(Qt::ElideRight) << int(Qt::ElideRight);

}

void tst_QTabBar::setElideMode()

{

    QFETCH(int, tabElideMode);

    QTabBar tabBar;

    if (tabElideMode != -128)

        tabBar.setElideMode(Qt::TextElideMode(tabElideMode));

    QTEST(int(tabBar.elideMode()), "expectedMode");

}

void tst_QTabBar::setUsesScrollButtons_data()

{

    QTest::addColumn<int>("usesArrows");

    QTest::addColumn<bool>("expectedArrows");

    QTest::newRow("default") << -128 << !qApp->style()->styleHint(QStyle::SH_TabBar_PreferNoArrows);

    QTest::newRow("explicit default")

                        << int(!qApp->style()->styleHint(QStyle::SH_TabBar_PreferNoArrows))

                        << !qApp->style()->styleHint(QStyle::SH_TabBar_PreferNoArrows);

    QTest::newRow("No") << int(false) << false;

    QTest::newRow("Yes") << int(true) << true;

}

void tst_QTabBar::setUsesScrollButtons()

{

    QFETCH(int, usesArrows);

    QTabBar tabBar;

    if (usesArrows != -128)

        tabBar.setUsesScrollButtons(usesArrows);

    QTEST(tabBar.usesScrollButtons(), "expectedArrows");

}

void tst_QTabBar::removeLastTab()

{

    QTabBar tabbar;

    QSignalSpy spy(&tabbar, SIGNAL(currentChanged(int)));

    int index = tabbar.addTab("foo");

    QCOMPARE(spy.count(), 1);

    QCOMPARE(spy.at(0).at(0).toInt(), index);

    spy.clear();

    tabbar.removeTab(index);

    QCOMPARE(spy.count(), 1);

    QCOMPARE(spy.at(0).at(0).toInt(), -1);

    spy.clear();

}

void tst_QTabBar::closeButton()

{

    QTabBar tabbar;

    QCOMPARE(tabbar.tabsClosable(), false);

    tabbar.setTabsClosable(true);

    QCOMPARE(tabbar.tabsClosable(), true);

    tabbar.addTab("foo");

    QTabBar::ButtonPosition closeSide = (QTabBar::ButtonPosition)tabbar.style()->styleHint(QStyle::SH_TabBar_CloseButtonPosition, 0, &tabbar);

    QTabBar::ButtonPosition otherSide = (closeSide == QTabBar::LeftSide ? QTabBar::RightSide : QTabBar::LeftSide);

    QVERIFY(tabbar.tabButton(0, otherSide) == 0);

    QVERIFY(tabbar.tabButton(0, closeSide) != 0);

    QAbstractButton *button = static_cast<QAbstractButton*>(tabbar.tabButton(0, closeSide));

    QVERIFY(button);

    QSignalSpy spy(&tabbar, SIGNAL(tabCloseRequested(int)));

    button->click();

    QCOMPARE(tabbar.count(), 1);

    QCOMPARE(spy.count(), 1);

}

Q_DECLARE_METATYPE(QTabBar::ButtonPosition)

void tst_QTabBar::tabButton_data()

{

    QTest::addColumn<QTabBar::ButtonPosition>("position");

    QTest::newRow("left") << QTabBar::LeftSide;

    QTest::newRow("right") << QTabBar::RightSide;

}

// QTabBar::setTabButton(index, closeSide, closeButton);

void tst_QTabBar::tabButton()

{

    QFETCH(QTabBar::ButtonPosition, position);

    QTabBar::ButtonPosition otherSide = (position == QTabBar::LeftSide ? QTabBar::RightSide : QTabBar::LeftSide);

    QTabBar tabbar;

    tabbar.resize(500, 200);

    tabbar.show();

    QTRY_VERIFY(tabbar.isVisible());

    tabbar.setTabButton(-1, position, 0);

    QVERIFY(tabbar.tabButton(-1, position) == 0);

    QVERIFY(tabbar.tabButton(0, position) == 0);

    tabbar.addTab("foo");

    QCOMPARE(tabbar.count(), 1);

    tabbar.setTabButton(0, position, 0);

    QVERIFY(tabbar.tabButton(0, position) == 0);

    QPushButton *button = new QPushButton;

    button->show();

    button->setText("hi");

    button->resize(10, 10);

    QTRY_VERIFY(button->isVisible());

    QTRY_VERIFY(button->isVisible());

    tabbar.setTabButton(0, position, button);

    QCOMPARE(tabbar.tabButton(0, position), static_cast<QWidget *>(button));

    QTRY_VERIFY(!button->isHidden());

    QVERIFY(tabbar.tabButton(0, otherSide) == 0);

    QCOMPARE(button->parent(), static_cast<QObject *>(&tabbar));

    QVERIFY(button->pos() != QPoint(0, 0));

    QPushButton *button2 = new QPushButton;

    tabbar.setTabButton(0, position, button2);

    QVERIFY(button->isHidden());

}

typedef QList<int> IntList;

Q_DECLARE_METATYPE(QTabBar::SelectionBehavior)

Q_DECLARE_METATYPE(IntList)

#define ONE(x) (IntList() << x)

void tst_QTabBar::selectionBehaviorOnRemove_data()

{

    QTest::addColumn<QTabBar::SelectionBehavior>("selectionBehavior");

    QTest::addColumn<int>("tabs");

    QTest::addColumn<IntList>("select");

    QTest::addColumn<IntList>("remove");

    QTest::addColumn<int>("expected");

    //                                               Count            select remove current

    QTest::newRow("left-1") << QTabBar::SelectLeftTab << 3 << (IntList() << 0) << ONE(0) << 0;

    QTest::newRow("left-2") << QTabBar::SelectLeftTab << 3 << (IntList() << 0) << ONE(1) << 0; // not removing current

    QTest::newRow("left-3") << QTabBar::SelectLeftTab << 3 << (IntList() << 0) << ONE(2) << 0; // not removing current

    QTest::newRow("left-4") << QTabBar::SelectLeftTab << 3 << (IntList() << 1) << ONE(0) << 0; // not removing current

    QTest::newRow("left-5") << QTabBar::SelectLeftTab << 3 << (IntList() << 1) << ONE(1) << 0;

    QTest::newRow("left-6") << QTabBar::SelectLeftTab << 3 << (IntList() << 1) << ONE(2) << 1;

    QTest::newRow("left-7") << QTabBar::SelectLeftTab << 3 << (IntList() << 2) << ONE(0) << 1; // not removing current

    QTest::newRow("left-8") << QTabBar::SelectLeftTab << 3 << (IntList() << 2) << ONE(1) << 1; // not removing current

    QTest::newRow("left-9") << QTabBar::SelectLeftTab << 3 << (IntList() << 2) << ONE(2) << 1;

    QTest::newRow("right-1") << QTabBar::SelectRightTab << 3 << (IntList() << 0) << ONE(0) << 0;

    QTest::newRow("right-2") << QTabBar::SelectRightTab << 3 << (IntList() << 0) << ONE(1) << 0; // not removing current

    QTest::newRow("right-3") << QTabBar::SelectRightTab << 3 << (IntList() << 0) << ONE(2) << 0; // not removing current

    QTest::newRow("right-4") << QTabBar::SelectRightTab << 3 << (IntList() << 1) << ONE(0) << 0; // not removing current

    QTest::newRow("right-5") << QTabBar::SelectRightTab << 3 << (IntList() << 1) << ONE(1) << 1;

    QTest::newRow("right-6") << QTabBar::SelectRightTab << 3 << (IntList() << 1) << ONE(2) << 1; // not removing current

    QTest::newRow("right-7") << QTabBar::SelectRightTab << 3 << (IntList() << 2) << ONE(0) << 1; // not removing current

    QTest::newRow("right-8") << QTabBar::SelectRightTab << 3 << (IntList() << 2) << ONE(1) << 1; // not removing current

    QTest::newRow("right-9") << QTabBar::SelectRightTab << 3 << (IntList() << 2) << ONE(2) << 1;

    QTest::newRow("previous-0") << QTabBar::SelectPreviousTab << 3 << (IntList()) << ONE(0) << 0;

    QTest::newRow("previous-1") << QTabBar::SelectPreviousTab << 3 << (IntList()) << ONE(1) << 0; // not removing current

    QTest::newRow("previous-2") << QTabBar::SelectPreviousTab << 3 << (IntList()) << ONE(2) << 0; // not removing current

    QTest::newRow("previous-3") << QTabBar::SelectPreviousTab << 3 << (IntList() << 2) << ONE(0) << 1; // not removing current

    QTest::newRow("previous-4") << QTabBar::SelectPreviousTab << 3 << (IntList() << 2) << ONE(1) << 1; // not removing current

    QTest::newRow("previous-5") << QTabBar::SelectPreviousTab << 3 << (IntList() << 2) << ONE(2) << 0;

    // go back one

    QTest::newRow("previous-6") << QTabBar::SelectPreviousTab << 4 << (IntList() << 0 << 2 << 3 << 1) << (IntList() << 1) << 2;

    // go back two

    QTest::newRow("previous-7") << QTabBar::SelectPreviousTab << 4 << (IntList() << 0 << 2 << 3 << 1) << (IntList() << 1 << 2) << 1;

    // go back three

    QTest::newRow("previous-8") << QTabBar::SelectPreviousTab << 4 << (IntList() << 0 << 2 << 3 << 1) << (IntList() << 1 << 2 << 1) << 0;

    // pick from the middle

    QTest::newRow("previous-9") << QTabBar::SelectPreviousTab << 4 << (IntList() << 0 << 2 << 3 << 1) << (IntList() << 2 << 1) << 1;

    // every other one

    QTest::newRow("previous-10") << QTabBar::SelectPreviousTab << 7 << (IntList() << 0 << 2 << 4 << 6) << (IntList() << 6 << 4) << 2;

}

void tst_QTabBar::selectionBehaviorOnRemove()

{

    QFETCH(QTabBar::SelectionBehavior, selectionBehavior);

    QFETCH(int, tabs);

    QFETCH(IntList, select);

    QFETCH(IntList, remove);

    QFETCH(int, expected);

    QTabBar tabbar;

    tabbar.setSelectionBehaviorOnRemove(selectionBehavior);

    while(--tabs >= 0)

        tabbar.addTab(QString::number(tabs));

    QCOMPARE(tabbar.currentIndex(), 0);

    while(!select.isEmpty())

        tabbar.setCurrentIndex(select.takeFirst());

    while(!remove.isEmpty())

        tabbar.removeTab(remove.takeFirst());

    QVERIFY(tabbar.count() > 0);

    QCOMPARE(tabbar.currentIndex(), expected);

}

class TabBar : public QTabBar

{

    Q_OBJECT

public:

    void callMoveTab(int from, int to){ moveTab(from, to); }

};

Q_DECLARE_METATYPE(QTabBar::Shape)

void tst_QTabBar::moveTab_data()

{

    QTest::addColumn<QTabBar::Shape>("shape");

    QTest::addColumn<int>("tabs");

    QTest::addColumn<int>("from");

    QTest::addColumn<int>("to");

    QTest::newRow("null-0") << QTabBar::RoundedNorth << 0 << -1 << -1;

    QTest::newRow("null-1") << QTabBar::RoundedEast  << 0 << -1 << -1;

    QTest::newRow("null-2") << QTabBar::RoundedEast  << 1 << 0 << 0;

    QTest::newRow("two-0") << QTabBar::RoundedNorth << 2 << 0 << 1;

    QTest::newRow("two-1") << QTabBar::RoundedNorth << 2 << 1 << 0;

    QTest::newRow("five-0") << QTabBar::RoundedNorth << 5 << 1 << 3; // forward

    QTest::newRow("five-1") << QTabBar::RoundedNorth << 5 << 3 << 1; // reverse

    QTest::newRow("five-2") << QTabBar::RoundedNorth << 5 << 0 << 4; // forward

    QTest::newRow("five-3") << QTabBar::RoundedNorth << 5 << 1 << 4; // forward

    QTest::newRow("five-4") << QTabBar::RoundedNorth << 5 << 3 << 4; // forward

}

void tst_QTabBar::moveTab()

{

    QFETCH(QTabBar::Shape, shape);

    QFETCH(int, tabs);

    QFETCH(int, from);

    QFETCH(int, to);

    TabBar bar;

    bar.setShape(shape);

    while(--tabs >= 0)

        bar.addTab(QString::number(tabs));

    bar.callMoveTab(from, to);

}

class MyTabBar : public QTabBar

{

    Q_OBJECT

public slots:

    void onCurrentChanged()

    {

        //we just want this to be done once

        disconnect(this, SIGNAL(currentChanged(int)), this, SLOT(onCurrentChanged()));

        removeTab(0);

    }

};

void tst_QTabBar::task251184_removeTab()

{

    MyTabBar bar;

    bar.addTab("bar1");

    bar.addTab("bar2");

    QCOMPARE(bar.count(), 2);

    QCOMPARE(bar.currentIndex(), 0);