/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/

#include <qtest.h>
#include <QtTest/QSignalSpy>
#include <QtQml/qqmlengine.h>
#include <QtQml/qqmlcomponent.h>
#include <QtQml/qqmlcontext.h>
#include <QtQuick/qquickview.h>
#include <QtQuick/private/qquickitem_p.h>
#include "../shared/util.h"
#include "../shared/visualtestutil.h"

using namespace QQuickVisualTestUtil;

class tst_applicationwindow : public QQmlDataTest
{
    Q_OBJECT
public:

private slots:
    void qmlCreation();
    void activeFocusOnTab1();
    void activeFocusOnTab2();
    void defaultFocus();
};

void tst_applicationwindow::qmlCreation()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("basicapplicationwindow.qml"));
    QObject* created = component.create();
    QScopedPointer<QObject> cleanup(created);
    QVERIFY(created);

    QQuickWindow* window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    QVERIFY(!window->isVisible());

    QCOMPARE(created->property("title"), QVariant("Test Application Window"));

    QQuickItem* statusBar = qvariant_cast<QQuickItem*>(created->property("statusBar"));
    QVERIFY(!statusBar);

    QQuickItem* menuBar = qvariant_cast<QQuickItem*>(created->property("menuBar"));
    QVERIFY(!menuBar);

    QQuickItem* toolBar = qvariant_cast<QQuickItem*>(created->property("toolBar"));
    QVERIFY(!toolBar);
}

void tst_applicationwindow::activeFocusOnTab1()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("activefocusontab.qml"));
    QObject* created = component.create();
    QScopedPointer<QObject> cleanup(created);
    QVERIFY(created);

    QQuickWindow* window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->show();
    window->requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(window));
    QVERIFY(QGuiApplication::focusWindow() == window);

    QQuickItem* contentItem = window->contentItem();
    QVERIFY(contentItem);
    QVERIFY(contentItem->hasActiveFocus());

    QQuickItem* item = findItem<QQuickItem>(window->contentItem(), "sub1");
    QVERIFY(item);
    QVERIFY(!item->hasActiveFocus());

    // Tab: contentItem->sub1
    QKeyEvent key(QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub1");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());

    // Tab: sub1->sub2
    key = QKeyEvent(QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub2");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());

    // Tab: sub2->sub1
    key = QKeyEvent(QEvent::KeyPress, Qt::Key_Tab, Qt::NoModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub1");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());
}

void tst_applicationwindow::activeFocusOnTab2()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("activefocusontab.qml"));
    QObject* created = component.create();
    QScopedPointer<QObject> cleanup(created);
    QVERIFY(created);

    QQuickWindow* window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->show();
    window->requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(window));
    QVERIFY(QGuiApplication::focusWindow() == window);

    QQuickItem* contentItem = window->contentItem();
    QVERIFY(contentItem);
    QVERIFY(contentItem->hasActiveFocus());

    QQuickItem* item = findItem<QQuickItem>(window->contentItem(), "sub2");
    QVERIFY(item);
    QVERIFY(!item->hasActiveFocus());

    // BackTab: contentItem->sub2
    QKeyEvent key(QEvent::KeyPress, Qt::Key_Tab, Qt::ShiftModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub2");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());

    // BackTab: sub2->sub1
    key = QKeyEvent(QEvent::KeyPress, Qt::Key_Tab, Qt::ShiftModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub1");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());

    // BackTab: sub1->sub2
    key = QKeyEvent(QEvent::KeyPress, Qt::Key_Tab, Qt::ShiftModifier, "", false, 1);
    QGuiApplication::sendEvent(window, &key);
    QVERIFY(key.isAccepted());

    item = findItem<QQuickItem>(window->contentItem(), "sub2");
    QVERIFY(item);
    QVERIFY(item->hasActiveFocus());
}

void tst_applicationwindow::defaultFocus()
{
    QQmlEngine engine;
    QQmlComponent component(&engine);
    component.loadUrl(testFileUrl("defaultFocus.qml"));
    QObject* created = component.create();
    QScopedPointer<QObject> cleanup(created);
    Q_UNUSED(cleanup);
    QVERIFY(created);

    QQuickWindow* window = qobject_cast<QQuickWindow*>(created);
    QVERIFY(window);
    window->show();
    window->requestActivate();
    QVERIFY(QTest::qWaitForWindowActive(window));
    QVERIFY(QGuiApplication::focusWindow() == window);

    QQuickItem* contentItem = window->contentItem();
    QVERIFY(contentItem);
    QVERIFY(contentItem->hasActiveFocus());

    // A single item in an ApplicationWindow with focus: true should receive focus.
    QQuickItem* item = findItem<QQuickItem>(window->contentItem(), "item");
    QVERIFY(item);
    QVERIFY(item->hasFocus());
    QVERIFY(item->hasActiveFocus());
}

QTEST_MAIN(tst_applicationwindow)

#include "tst_applicationwindow.moc"