/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.

Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
// Qt
#include <QtTest/QtTest>
// WaylandServer
#include "../../src/server/display.h"
#include "../../src/server/seat_interface.h"

using namespace KWin::WaylandServer;


class TestWaylandServerSeat : public QObject
{
    Q_OBJECT
private Q_SLOTS:
    void testCapabilities();
    void testName();
    void testPointerButton();
    void testPointerPos();
    void testDestroyThroughTerminate();
};

static const QString s_socketName = QStringLiteral("kwin-wayland-server-seat-test-0");

void TestWaylandServerSeat::testCapabilities()
{
    Display display;
    display.setSocketName(s_socketName);
    display.start();
    SeatInterface *seat = display.createSeat();
    QVERIFY(!seat->hasKeyboard());
    QVERIFY(!seat->hasPointer());
    QVERIFY(!seat->hasTouch());

    QSignalSpy keyboardSpy(seat, SIGNAL(hasKeyboardChanged(bool)));
    QVERIFY(keyboardSpy.isValid());
    seat->setHasKeyboard(true);
    QCOMPARE(keyboardSpy.count(), 1);
    QVERIFY(keyboardSpy.last().first().toBool());
    QVERIFY(seat->hasKeyboard());
    seat->setHasKeyboard(false);
    QCOMPARE(keyboardSpy.count(), 2);
    QVERIFY(!keyboardSpy.last().first().toBool());
    QVERIFY(!seat->hasKeyboard());
    seat->setHasKeyboard(false);
    QCOMPARE(keyboardSpy.count(), 2);

    QSignalSpy pointerSpy(seat, SIGNAL(hasPointerChanged(bool)));
    QVERIFY(pointerSpy.isValid());
    seat->setHasPointer(true);
    QCOMPARE(pointerSpy.count(), 1);
    QVERIFY(pointerSpy.last().first().toBool());
    QVERIFY(seat->hasPointer());
    seat->setHasPointer(false);
    QCOMPARE(pointerSpy.count(), 2);
    QVERIFY(!pointerSpy.last().first().toBool());
    QVERIFY(!seat->hasPointer());
    seat->setHasPointer(false);
    QCOMPARE(pointerSpy.count(), 2);

    QSignalSpy touchSpy(seat, SIGNAL(hasTouchChanged(bool)));
    QVERIFY(touchSpy.isValid());
    seat->setHasTouch(true);
    QCOMPARE(touchSpy.count(), 1);
    QVERIFY(touchSpy.last().first().toBool());
    QVERIFY(seat->hasTouch());
    seat->setHasTouch(false);
    QCOMPARE(touchSpy.count(), 2);
    QVERIFY(!touchSpy.last().first().toBool());
    QVERIFY(!seat->hasTouch());
    seat->setHasTouch(false);
    QCOMPARE(touchSpy.count(), 2);
}

void TestWaylandServerSeat::testName()
{
    Display display;
    display.setSocketName(s_socketName);
    display.start();
    SeatInterface *seat = display.createSeat();
    QCOMPARE(seat->name(), QString());

    QSignalSpy nameSpy(seat, SIGNAL(nameChanged(QString)));
    QVERIFY(nameSpy.isValid());
    const QString name = QStringLiteral("foobar");
    seat->setName(name);
    QCOMPARE(seat->name(), name);
    QCOMPARE(nameSpy.count(), 1);
    QCOMPARE(nameSpy.first().first().toString(), name);
    seat->setName(name);
    QCOMPARE(nameSpy.count(), 1);
}

void TestWaylandServerSeat::testPointerButton()
{
    Display display;
    display.setSocketName(s_socketName);
    display.start();
    SeatInterface *seat = display.createSeat();
    PointerInterface *pointer = seat->pointer();

    // no button pressed yet, should be released and no serial
    QVERIFY(!pointer->isButtonPressed(0));
    QVERIFY(!pointer->isButtonPressed(1));
    QCOMPARE(pointer->buttonSerial(0), quint32(0));
    QCOMPARE(pointer->buttonSerial(1), quint32(0));

    // mark the button as pressed
    pointer->buttonPressed(0);
    QVERIFY(pointer->isButtonPressed(0));
    QCOMPARE(pointer->buttonSerial(0), display.serial());

    // other button should still be unpressed
    QVERIFY(!pointer->isButtonPressed(1));
    QCOMPARE(pointer->buttonSerial(1), quint32(0));

    // release it again
    pointer->buttonReleased(0);
    QVERIFY(!pointer->isButtonPressed(0));
    QCOMPARE(pointer->buttonSerial(0), display.serial());
}

void TestWaylandServerSeat::testPointerPos()
{
    Display display;
    display.setSocketName(s_socketName);
    display.start();
    SeatInterface *seat = display.createSeat();
    PointerInterface *pointer = seat->pointer();
    QSignalSpy posSpy(pointer, SIGNAL(globalPosChanged(QPoint)));
    QVERIFY(posSpy.isValid());

    QCOMPARE(pointer->globalPos(), QPoint());

    pointer->setGlobalPos(QPoint(10, 15));
    QCOMPARE(pointer->globalPos(), QPoint(10, 15));
    QCOMPARE(posSpy.count(), 1);
    QCOMPARE(posSpy.first().first().toPoint(), QPoint(10, 15));

    pointer->setGlobalPos(QPoint(10, 15));
    QCOMPARE(posSpy.count(), 1);
}

void TestWaylandServerSeat::testDestroyThroughTerminate()
{
    Display display;
    display.setSocketName(s_socketName);
    display.start();
    SeatInterface *seat = display.createSeat();
    QSignalSpy destroyedSpy(seat, SIGNAL(destroyed(QObject*)));
    QVERIFY(destroyedSpy.isValid());
    display.terminate();
    QVERIFY(!destroyedSpy.isEmpty());
}

QTEST_MAIN(TestWaylandServerSeat)
#include "test_seat.moc"