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

Copyright (C) 2016 Martin Gräßlin <mgraesslin@kde.org>
Copyright (C) 2019 David Edmundson <davidedmundson@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/>.
*********************************************************************/
#include "kwin_wayland_test.h"
#include "cursor.h"
#include "effects.h"
#include "deleted.h"
#include "platform.h"
#include "shell_client.h"
#include "screens.h"
#include "wayland_server.h"
#include "workspace.h"

#include <QDBusConnection>

#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/compositor.h>
#include <KWayland/Client/shell.h>
#include <KWayland/Client/output.h>
#include <KWayland/Client/server_decoration.h>
#include <KWayland/Client/surface.h>
#include <KWayland/Client/xdgshell.h>
#include <KWayland/Client/xdgdecoration.h>
#include <KWayland/Client/appmenu.h>

#include <KWayland/Server/clientconnection.h>
#include <KWayland/Server/display.h>
#include <KWayland/Server/shell_interface.h>
#include <KWayland/Server/xdgdecoration_interface.h>

// system
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <signal.h>

using namespace KWin;
using namespace KWayland::Client;

static const QString s_socketName = QStringLiteral("wayland_test_kwin_shell_client-0");

class TestShellClient : public QObject
{
    Q_OBJECT
private Q_SLOTS:
    void initTestCase();
    void init();
    void cleanup();

    void testMapUnmapMap_data();
    void testMapUnmapMap();
    void testDesktopPresenceChanged();
    void testTransientPositionAfterRemap();
    void testWindowOutputs_data();
    void testWindowOutputs();
    void testMinimizeActiveWindow_data();
    void testMinimizeActiveWindow();
    void testFullscreen_data();
    void testFullscreen();
    void testFullscreenRestore_data();
    void testFullscreenRestore();
    void testUserCanSetFullscreen_data();
    void testUserCanSetFullscreen();
    void testUserSetFullscreenWlShell();
    void testUserSetFullscreenXdgShell_data();
    void testUserSetFullscreenXdgShell();
    void testMaximizedToFullscreenWlShell_data();
    void testMaximizedToFullscreenWlShell();
    void testMaximizedToFullscreenXdgShell_data();
    void testMaximizedToFullscreenXdgShell();
    void testWindowOpensLargerThanScreen_data();
    void testWindowOpensLargerThanScreen();
    void testHidden_data();
    void testHidden();
    void testDesktopFileName();
    void testCaptionSimplified();
    void testCaptionMultipleWindows();
    void testUnresponsiveWindow_data();
    void testUnresponsiveWindow();
    void testX11WindowId_data();
    void testX11WindowId();
    void testAppMenu();
    void testNoDecorationModeRequested_data();
    void testNoDecorationModeRequested();
    void testSendClientWithTransientToDesktop_data();
    void testSendClientWithTransientToDesktop();
    void testMinimizeWindowWithTransients_data();
    void testMinimizeWindowWithTransients();
    void testXdgDecoration_data();
    void testXdgDecoration();
    void testXdgNeverCommitted();
    void testXdgInitialState();
    void testXdgInitiallyMaximised();
    void testXdgInitiallyMinimized();
};

void TestShellClient::initTestCase()
{
    qRegisterMetaType<KWin::Deleted*>();
    qRegisterMetaType<KWin::ShellClient*>();
    qRegisterMetaType<KWin::AbstractClient*>();
    qRegisterMetaType<KWayland::Client::Output*>();

    QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
    QVERIFY(workspaceCreatedSpy.isValid());
    kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
    QVERIFY(waylandServer()->init(s_socketName.toLocal8Bit()));

    kwinApp()->start();
    QVERIFY(workspaceCreatedSpy.wait());
    QCOMPARE(screens()->count(), 2);
    QCOMPARE(screens()->geometry(0), QRect(0, 0, 1280, 1024));
    QCOMPARE(screens()->geometry(1), QRect(1280, 0, 1280, 1024));
    waylandServer()->initWorkspace();
}

void TestShellClient::init()
{
    QVERIFY(Test::setupWaylandConnection(Test::AdditionalWaylandInterface::Decoration |
                                         Test::AdditionalWaylandInterface::XdgDecoration |
                                         Test::AdditionalWaylandInterface::AppMenu));

    screens()->setCurrent(0);
    KWin::Cursor::setPos(QPoint(1280, 512));
}

void TestShellClient::cleanup()
{
    Test::destroyWaylandConnection();
}

void TestShellClient::testMapUnmapMap_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testMapUnmapMap()
{
    // this test verifies that mapping a previously mapped window works correctly
    QSignalSpy clientAddedSpy(waylandServer(), &WaylandServer::shellClientAdded);
    QVERIFY(clientAddedSpy.isValid());
    QSignalSpy effectsWindowShownSpy(effects, &EffectsHandler::windowShown);
    QVERIFY(effectsWindowShownSpy.isValid());
    QSignalSpy effectsWindowHiddenSpy(effects, &EffectsHandler::windowHidden);
    QVERIFY(effectsWindowHiddenSpy.isValid());

    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));

    // now let's render
    Test::render(surface.data(), QSize(100, 50), Qt::blue);

    QVERIFY(clientAddedSpy.isEmpty());
    QVERIFY(clientAddedSpy.wait());
    auto client = clientAddedSpy.first().first().value<ShellClient*>();
    QVERIFY(client);
    QVERIFY(client->isShown(true));
    QCOMPARE(client->isHiddenInternal(), false);
    QCOMPARE(client->readyForPainting(), true);
    QCOMPARE(client->depth(), 32);
    QVERIFY(client->hasAlpha());
    QCOMPARE(client->icon().name(), QStringLiteral("wayland"));
    QCOMPARE(workspace()->activeClient(), client);
    QVERIFY(effectsWindowShownSpy.isEmpty());
    QVERIFY(client->isMaximizable());
    QVERIFY(client->isMovable());
    QVERIFY(client->isMovableAcrossScreens());
    QVERIFY(client->isResizable());
    QVERIFY(client->property("maximizable").toBool());
    QVERIFY(client->property("moveable").toBool());
    QVERIFY(client->property("moveableAcrossScreens").toBool());
    QVERIFY(client->property("resizeable").toBool());
    QCOMPARE(client->isInternal(), false);
    QVERIFY(client->effectWindow());
    QVERIFY(!client->effectWindow()->internalWindow());
    QCOMPARE(client->internalId().isNull(), false);
    const auto uuid = client->internalId();
    QUuid deletedUuid;
    QCOMPARE(deletedUuid.isNull(), true);

    connect(client, &ShellClient::windowClosed, this, [&deletedUuid] (Toplevel *, Deleted *d) { deletedUuid = d->internalId(); });

    // now unmap
    QSignalSpy hiddenSpy(client, &ShellClient::windowHidden);
    QVERIFY(hiddenSpy.isValid());
    QSignalSpy windowClosedSpy(client, &ShellClient::windowClosed);
    QVERIFY(windowClosedSpy.isValid());
    surface->attachBuffer(Buffer::Ptr());
    surface->commit(Surface::CommitFlag::None);
    QVERIFY(hiddenSpy.wait());
    QCOMPARE(client->readyForPainting(), true);
    QCOMPARE(client->isHiddenInternal(), true);
    QVERIFY(windowClosedSpy.isEmpty());
    QVERIFY(!workspace()->activeClient());
    QCOMPARE(effectsWindowHiddenSpy.count(), 1);
    QCOMPARE(effectsWindowHiddenSpy.first().first().value<EffectWindow*>(), client->effectWindow());

    QSignalSpy windowShownSpy(client, &ShellClient::windowShown);
    QVERIFY(windowShownSpy.isValid());
    Test::render(surface.data(), QSize(100, 50), Qt::blue, QImage::Format_RGB32);
    QCOMPARE(clientAddedSpy.count(), 1);
    QVERIFY(windowShownSpy.wait());
    QCOMPARE(windowShownSpy.count(), 1);
    QCOMPARE(clientAddedSpy.count(), 1);
    QCOMPARE(client->readyForPainting(), true);
    QCOMPARE(client->isHiddenInternal(), false);
    QCOMPARE(client->depth(), 24);
    QVERIFY(!client->hasAlpha());
    QCOMPARE(workspace()->activeClient(), client);
    QCOMPARE(effectsWindowShownSpy.count(), 1);
    QCOMPARE(effectsWindowShownSpy.first().first().value<EffectWindow*>(), client->effectWindow());

    // let's unmap again
    surface->attachBuffer(Buffer::Ptr());
    surface->commit(Surface::CommitFlag::None);
    QVERIFY(hiddenSpy.wait());
    QCOMPARE(hiddenSpy.count(), 2);
    QCOMPARE(client->readyForPainting(), true);
    QCOMPARE(client->isHiddenInternal(), true);
    QCOMPARE(client->internalId(), uuid);
    QVERIFY(windowClosedSpy.isEmpty());
    QCOMPARE(effectsWindowHiddenSpy.count(), 2);
    QCOMPARE(effectsWindowHiddenSpy.last().first().value<EffectWindow*>(), client->effectWindow());

    shellSurface.reset();
    surface.reset();
    QVERIFY(windowClosedSpy.wait());
    QCOMPARE(windowClosedSpy.count(), 1);
    QCOMPARE(effectsWindowHiddenSpy.count(), 2);
    QCOMPARE(deletedUuid.isNull(), false);
    QCOMPARE(deletedUuid, uuid);
}

void TestShellClient::testDesktopPresenceChanged()
{
    // this test verifies that the desktop presence changed signals are properly emitted
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QCOMPARE(c->desktop(), 1);
    effects->setNumberOfDesktops(4);
    QSignalSpy desktopPresenceChangedClientSpy(c, &ShellClient::desktopPresenceChanged);
    QVERIFY(desktopPresenceChangedClientSpy.isValid());
    QSignalSpy desktopPresenceChangedWorkspaceSpy(workspace(), &Workspace::desktopPresenceChanged);
    QVERIFY(desktopPresenceChangedWorkspaceSpy.isValid());
    QSignalSpy desktopPresenceChangedEffectsSpy(effects, &EffectsHandler::desktopPresenceChanged);
    QVERIFY(desktopPresenceChangedEffectsSpy.isValid());

    // let's change the desktop
    workspace()->sendClientToDesktop(c, 2, false);
    QCOMPARE(c->desktop(), 2);
    QCOMPARE(desktopPresenceChangedClientSpy.count(), 1);
    QCOMPARE(desktopPresenceChangedWorkspaceSpy.count(), 1);
    QCOMPARE(desktopPresenceChangedEffectsSpy.count(), 1);

    // verify the arguments
    QCOMPARE(desktopPresenceChangedClientSpy.first().at(0).value<AbstractClient*>(), c);
    QCOMPARE(desktopPresenceChangedClientSpy.first().at(1).toInt(), 1);
    QCOMPARE(desktopPresenceChangedWorkspaceSpy.first().at(0).value<AbstractClient*>(), c);
    QCOMPARE(desktopPresenceChangedWorkspaceSpy.first().at(1).toInt(), 1);
    QCOMPARE(desktopPresenceChangedEffectsSpy.first().at(0).value<EffectWindow*>(), c->effectWindow());
    QCOMPARE(desktopPresenceChangedEffectsSpy.first().at(1).toInt(), 1);
    QCOMPARE(desktopPresenceChangedEffectsSpy.first().at(2).toInt(), 2);
}

void TestShellClient::testTransientPositionAfterRemap()
{
    // this test simulates the situation that a transient window gets reused and the parent window
    // moved between the two usages
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);

    // create the Transient window
    QScopedPointer<Surface> transientSurface(Test::createSurface());
    QScopedPointer<ShellSurface> transientShellSurface(Test::createShellSurface(transientSurface.data()));
    transientShellSurface->setTransient(surface.data(), QPoint(5, 10));
    auto transient = Test::renderAndWaitForShown(transientSurface.data(), QSize(50, 40), Qt::blue);
    QVERIFY(transient);
    QCOMPARE(transient->geometry(), QRect(c->geometry().topLeft() + QPoint(5, 10), QSize(50, 40)));

    // unmap the transient
    QSignalSpy windowHiddenSpy(transient, &ShellClient::windowHidden);
    QVERIFY(windowHiddenSpy.isValid());
    transientSurface->attachBuffer(Buffer::Ptr());
    transientSurface->commit(Surface::CommitFlag::None);
    QVERIFY(windowHiddenSpy.wait());

    // now move the parent surface
    c->setGeometry(c->geometry().translated(5, 10));

    // now map the transient again
    QSignalSpy windowShownSpy(transient, &ShellClient::windowShown);
    QVERIFY(windowShownSpy.isValid());
    Test::render(transientSurface.data(), QSize(50, 40), Qt::blue);
    QVERIFY(windowShownSpy.wait());
    QCOMPARE(transient->geometry(), QRect(c->geometry().topLeft() + QPoint(5, 10), QSize(50, 40)));
}

void TestShellClient::testWindowOutputs_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testWindowOutputs()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    auto size = QSize(200,200);

    QSignalSpy outputEnteredSpy(surface.data(), &Surface::outputEntered);
    QSignalSpy outputLeftSpy(surface.data(), &Surface::outputLeft);

    auto c = Test::renderAndWaitForShown(surface.data(), size, Qt::blue);
    //move to be in the first screen
    c->setGeometry(QRect(QPoint(100,100), size));
    //we don't don't know where the compositor first placed this window,
    //this might fire, it might not
    outputEnteredSpy.wait(5);
    outputEnteredSpy.clear();

    QCOMPARE(surface->outputs().count(), 1);
    QCOMPARE(surface->outputs().first()->globalPosition(), QPoint(0,0));

    //move to overlapping both first and second screen
    c->setGeometry(QRect(QPoint(1250,100), size));
    QVERIFY(outputEnteredSpy.wait());
    QCOMPARE(outputEnteredSpy.count(), 1);
    QCOMPARE(outputLeftSpy.count(), 0);
    QCOMPARE(surface->outputs().count(), 2);
    QVERIFY(surface->outputs()[0] != surface->outputs()[1]);

    //move entirely into second screen
    c->setGeometry(QRect(QPoint(1400,100), size));
    QVERIFY(outputLeftSpy.wait());
    QCOMPARE(outputEnteredSpy.count(), 1);
    QCOMPARE(outputLeftSpy.count(), 1);
    QCOMPARE(surface->outputs().count(), 1);
    QCOMPARE(surface->outputs().first()->globalPosition(), QPoint(1280,0));
}

void TestShellClient::testMinimizeActiveWindow_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testMinimizeActiveWindow()
{
    // this test verifies that when minimizing the active window it gets deactivated
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QCOMPARE(workspace()->activeClient(), c);
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());
    QVERIFY(c->isShown(true));

    workspace()->slotWindowMinimize();
    QVERIFY(!c->isShown(true));
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());
    QVERIFY(!c->isActive());
    QVERIFY(!workspace()->activeClient());
    QVERIFY(c->isMinimized());

    // unminimize again
    c->unminimize();
    QVERIFY(!c->isMinimized());
    QVERIFY(c->isActive());
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());
    QVERIFY(c->isShown(true));
    QCOMPARE(workspace()->activeClient(), c);
}

void TestShellClient::testFullscreen_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");
    QTest::addColumn<ServerSideDecoration::Mode>("decoMode");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell << ServerSideDecoration::Mode::Client;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5 << ServerSideDecoration::Mode::Client;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6 << ServerSideDecoration::Mode::Client;
    QTest::newRow("xdgShellWmBase") << Test::ShellSurfaceType::XdgShellStable << ServerSideDecoration::Mode::Client;

    QTest::newRow("wlShell - deco") << Test::ShellSurfaceType::WlShell << ServerSideDecoration::Mode::Server;
    QTest::newRow("xdgShellV5 - deco") << Test::ShellSurfaceType::XdgShellV5 << ServerSideDecoration::Mode::Server;
    QTest::newRow("xdgShellV6 - deco") << Test::ShellSurfaceType::XdgShellV6 << ServerSideDecoration::Mode::Server;
    QTest::newRow("xdgShellWmBase - deco") << Test::ShellSurfaceType::XdgShellStable << ServerSideDecoration::Mode::Server;

}

void TestShellClient::testFullscreen()
{
    // this test verifies that a window can be properly fullscreened
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));

    ShellSurface* wlShellSurface = nullptr;
    XdgShellSurface *xdgShellSurface = nullptr;
    // fullscreen the window
    switch (type) {
    case Test::ShellSurfaceType::WlShell:
        wlShellSurface = qobject_cast<ShellSurface*>(shellSurface.data());
        break;
    case Test::ShellSurfaceType::XdgShellV5:
    case Test::ShellSurfaceType::XdgShellV6:
    case Test::ShellSurfaceType::XdgShellStable:
        xdgShellSurface = qobject_cast<XdgShellSurface*>(shellSurface.data());
        break;
    default:
        Q_UNREACHABLE();
        break;
    }
    QVERIFY(wlShellSurface || xdgShellSurface);
    QVERIFY(!(wlShellSurface && xdgShellSurface));

    // create deco
    QScopedPointer<ServerSideDecoration> deco(Test::waylandServerSideDecoration()->create(surface.data()));
    QSignalSpy decoSpy(deco.data(), &ServerSideDecoration::modeChanged);
    QVERIFY(decoSpy.isValid());
    QVERIFY(decoSpy.wait());
    QFETCH(ServerSideDecoration::Mode, decoMode);
    deco->requestMode(decoMode);
    QVERIFY(decoSpy.wait());
    QCOMPARE(deco->mode(), decoMode);

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QCOMPARE(c->layer(), NormalLayer);
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->clientSize(), QSize(100, 50));
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
    QCOMPARE(c->sizeForClientSize(c->clientSize()), c->geometry().size());
    QSignalSpy fullscreenChangedSpy(c, &ShellClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    QSignalSpy geometryChangedSpy(c, &ShellClient::geometryChanged);
    QVERIFY(geometryChangedSpy.isValid());
    QSignalSpy sizeChangeRequestedSpy(shellSurface.data(), SIGNAL(sizeChanged(QSize)));
    QVERIFY(sizeChangeRequestedSpy.isValid());
    QSignalSpy configureRequestedSpy(shellSurface.data(), SIGNAL(configureRequested(QSize, KWayland::Client::XdgShellSurface::States, quint32)));
    if (xdgShellSurface) {
        QVERIFY(configureRequestedSpy.isValid());
    }

    if (wlShellSurface) {
        wlShellSurface->setFullscreen();
    }
    if (xdgShellSurface) {
        xdgShellSurface->setFullscreen(true);
    }

    QVERIFY(fullscreenChangedSpy.wait());
    QVERIFY(sizeChangeRequestedSpy.wait());
    QCOMPARE(sizeChangeRequestedSpy.count(), 1);
    QCOMPARE(sizeChangeRequestedSpy.first().first().toSize(), QSize(screens()->size(0)));
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(c->isFullScreen());
    QCOMPARE(c->clientSize(), QSize(100, 50));
    QVERIFY(geometryChangedSpy.isEmpty());

    if (xdgShellSurface) {
        for (const auto &it: configureRequestedSpy) {
            xdgShellSurface->ackConfigure(it[2].toInt());
        }
    }

    Test::render(surface.data(), sizeChangeRequestedSpy.first().first().toSize(), Qt::red);
    QVERIFY(geometryChangedSpy.wait());
    QCOMPARE(geometryChangedSpy.count(), 1);
    QVERIFY(c->isFullScreen());
    QVERIFY(!c->isDecorated());
    QCOMPARE(c->geometry(), QRect(QPoint(0, 0), sizeChangeRequestedSpy.first().first().toSize()));
    QCOMPARE(c->layer(), ActiveLayer);

    // swap back to normal
    if (wlShellSurface) {
        wlShellSurface->setToplevel();
    }
    if (xdgShellSurface) {
        xdgShellSurface->setFullscreen(false);
    }
    QVERIFY(fullscreenChangedSpy.wait());
    QVERIFY(sizeChangeRequestedSpy.wait());
    QCOMPARE(sizeChangeRequestedSpy.count(), 2);
    QCOMPARE(sizeChangeRequestedSpy.last().first().toSize(), QSize(100, 50));
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->layer(), NormalLayer);
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
}

void TestShellClient::testFullscreenRestore_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgShellWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testFullscreenRestore()
{
    // this test verifies that windows created fullscreen can be later properly restored
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    XdgShellSurface *xdgShellSurface = Test::createXdgShellSurface(type, surface.data(), surface.data(), Test::CreationSetup::CreateOnly);
    QSignalSpy configureRequestedSpy(xdgShellSurface, SIGNAL(configureRequested(QSize, KWayland::Client::XdgShellSurface::States, quint32)));

    // fullscreen the window
    xdgShellSurface->setFullscreen(true);
    surface->commit(Surface::CommitFlag::None);

    configureRequestedSpy.wait();
    QCOMPARE(configureRequestedSpy.count(), 1);

    const auto size = configureRequestedSpy.first()[0].value<QSize>();
    const auto state = configureRequestedSpy.first()[1].value<KWayland::Client::XdgShellSurface::States>();

    QCOMPARE(size, screens()->size(0));
    QVERIFY(state & KWayland::Client::XdgShellSurface::State::Fullscreen);
    xdgShellSurface->ackConfigure(configureRequestedSpy.first()[2].toUInt());

    auto c = Test::renderAndWaitForShown(surface.data(), size, Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isFullScreen());

    configureRequestedSpy.wait(100);

    QSignalSpy fullscreenChangedSpy(c, &ShellClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    QSignalSpy geometryChangedSpy(c, &ShellClient::geometryChanged);
    QVERIFY(geometryChangedSpy.isValid());

    // swap back to normal
    configureRequestedSpy.clear();
    xdgShellSurface->setFullscreen(false);

    QVERIFY(fullscreenChangedSpy.wait());
    QVERIFY(configureRequestedSpy.wait());
    QCOMPARE(configureRequestedSpy.last().first().toSize(), QSize(0, 0));
    QVERIFY(!c->isFullScreen());

    for (const auto &it: configureRequestedSpy) {
        xdgShellSurface->ackConfigure(it[2].toUInt());
    }

    Test::render(surface.data(), QSize(100, 50), Qt::red);
    QVERIFY(geometryChangedSpy.wait());
    QCOMPARE(geometryChangedSpy.count(), 1);
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->geometry().size(), QSize(100, 50));
}

void TestShellClient::testUserCanSetFullscreen_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");
    QTest::addColumn<bool>("expected");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell << false;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5 << true;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6 << true;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable << true;

}

void TestShellClient::testUserCanSetFullscreen()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QVERIFY(!c->isFullScreen());
    QTEST(c->userCanSetFullScreen(), "expected");
}

void TestShellClient::testUserSetFullscreenWlShell()
{
    // wlshell cannot sync fullscreen to the client
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QVERIFY(!c->isFullScreen());
    QSignalSpy fullscreenChangedSpy(c, &AbstractClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    c->setFullScreen(true);
    QCOMPARE(fullscreenChangedSpy.count(), 0);
    QVERIFY(!c->isFullScreen());
}

void TestShellClient::testUserSetFullscreenXdgShell_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testUserSetFullscreenXdgShell()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellSurface(
        type, surface.data(), surface.data(), Test::CreationSetup::CreateOnly));
    QVERIFY(!shellSurface.isNull());

    // wait for the initial configure event
    QSignalSpy configureRequestedSpy(shellSurface.data(), &XdgShellSurface::configureRequested);
    QVERIFY(configureRequestedSpy.isValid());
    surface->commit(Surface::CommitFlag::None);
    QVERIFY(configureRequestedSpy.wait());
    QCOMPARE(configureRequestedSpy.count(), 1);

    shellSurface->ackConfigure(configureRequestedSpy.last().at(2).value<quint32>());
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QVERIFY(!c->isFullScreen());

    // The client gets activated, which gets another configure event. Though that's not relevant to the test
    configureRequestedSpy.wait(10);

    QSignalSpy fullscreenChangedSpy(c, &AbstractClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    c->setFullScreen(true);
    QCOMPARE(c->isFullScreen(), true);
    configureRequestedSpy.clear();
    QVERIFY(configureRequestedSpy.wait());
    QCOMPARE(configureRequestedSpy.count(), 1);
    QCOMPARE(configureRequestedSpy.first().at(0).toSize(), screens()->size(0));
    const auto states = configureRequestedSpy.first().at(1).value<KWayland::Client::XdgShellSurface::States>();
    QVERIFY(states.testFlag(KWayland::Client::XdgShellSurface::State::Fullscreen));
    QVERIFY(states.testFlag(KWayland::Client::XdgShellSurface::State::Activated));
    QVERIFY(!states.testFlag(KWayland::Client::XdgShellSurface::State::Maximized));
    QVERIFY(!states.testFlag(KWayland::Client::XdgShellSurface::State::Resizing));
    QCOMPARE(fullscreenChangedSpy.count(), 1);
    QVERIFY(c->isFullScreen());

    shellSurface->ackConfigure(configureRequestedSpy.first().at(2).value<quint32>());

    // unset fullscreen again
    c->setFullScreen(false);
    QCOMPARE(c->isFullScreen(), false);
    configureRequestedSpy.clear();
    QVERIFY(configureRequestedSpy.wait());
    QCOMPARE(configureRequestedSpy.count(), 1);
    QCOMPARE(configureRequestedSpy.first().at(0).toSize(), QSize(100, 50));
    QVERIFY(!configureRequestedSpy.first().at(1).value<KWayland::Client::XdgShellSurface::States>().testFlag(KWayland::Client::XdgShellSurface::State::Fullscreen));
    QCOMPARE(fullscreenChangedSpy.count(), 2);
    QVERIFY(!c->isFullScreen());
}

void TestShellClient::testMaximizedToFullscreenWlShell_data()
{
    QTest::addColumn<ServerSideDecoration::Mode>("decoMode");

    QTest::newRow("wlShell") << ServerSideDecoration::Mode::Client;
    QTest::newRow("wlShell - deco") << ServerSideDecoration::Mode::Server;
}

void TestShellClient::testMaximizedToFullscreenWlShell()
{
    // this test verifies that a window can be properly fullscreened after maximizing
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<ShellSurface> shellSurface(Test::createShellSurface(surface.data()));

    QVERIFY(shellSurface.data());

    // create deco
    QScopedPointer<ServerSideDecoration> deco(Test::waylandServerSideDecoration()->create(surface.data()));
    QSignalSpy decoSpy(deco.data(), &ServerSideDecoration::modeChanged);
    QVERIFY(decoSpy.isValid());
    QVERIFY(decoSpy.wait());
    QFETCH(ServerSideDecoration::Mode, decoMode);
    deco->requestMode(decoMode);
    QVERIFY(decoSpy.wait());
    QCOMPARE(deco->mode(), decoMode);

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->clientSize(), QSize(100, 50));
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
    QSignalSpy fullscreenChangedSpy(c, &ShellClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    QSignalSpy geometryChangedSpy(c, &ShellClient::geometryChanged);
    QVERIFY(geometryChangedSpy.isValid());
    QSignalSpy sizeChangeRequestedSpy(shellSurface.data(), SIGNAL(sizeChanged(QSize)));
    QVERIFY(sizeChangeRequestedSpy.isValid());
    QSignalSpy configureRequestedSpy(shellSurface.data(), SIGNAL(configureRequested(QSize, KWayland::Client::XdgShellSurface::States, quint32)));

    shellSurface->setMaximized();

    QVERIFY(sizeChangeRequestedSpy.wait());
    QCOMPARE(sizeChangeRequestedSpy.count(), 1);

    Test::render(surface.data(), sizeChangeRequestedSpy.last().first().toSize(), Qt::red);
    QVERIFY(geometryChangedSpy.wait());

    QCOMPARE(c->maximizeMode(), MaximizeFull);
    QCOMPARE(geometryChangedSpy.isEmpty(), false);
    geometryChangedSpy.clear();

    // fullscreen the window
    shellSurface->setFullscreen();

    QVERIFY(fullscreenChangedSpy.wait());
    if (decoMode == ServerSideDecoration::Mode::Server) {
        QVERIFY(sizeChangeRequestedSpy.wait());
        QCOMPARE(sizeChangeRequestedSpy.count(), 2);
    }
    QCOMPARE(sizeChangeRequestedSpy.last().first().toSize(), QSize(screens()->size(0)));
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(c->isFullScreen());

    // render at the new size
    Test::render(surface.data(), sizeChangeRequestedSpy.last().first().toSize(), Qt::red);

    QVERIFY(c->isFullScreen());
    QVERIFY(!c->isDecorated());
    QCOMPARE(c->geometry(), QRect(QPoint(0, 0), sizeChangeRequestedSpy.last().first().toSize()));
    sizeChangeRequestedSpy.clear();

    // swap back to normal
    shellSurface->setToplevel();

    QVERIFY(fullscreenChangedSpy.wait());
    if (decoMode == ServerSideDecoration::Mode::Server) {
         QVERIFY(sizeChangeRequestedSpy.wait());
         // fails as we don't correctly call setMaximize(false)
         // but realistically the only toolkits that support the deco also use XDGShell
         QEXPECT_FAIL("wlShell - deco", "With decoration incorrect geometry requested", Continue);
         QCOMPARE(sizeChangeRequestedSpy.last().first().toSize(), QSize(100, 50));
    }
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
}

void TestShellClient::testMaximizedToFullscreenXdgShell_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");
    QTest::addColumn<ServerSideDecoration::Mode>("decoMode");

    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5 << ServerSideDecoration::Mode::Client;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6 << ServerSideDecoration::Mode::Client;
    QTest::newRow("xdgShellWmBase") << Test::ShellSurfaceType::XdgShellStable << ServerSideDecoration::Mode::Client;

    QTest::newRow("xdgShellV5 - deco") << Test::ShellSurfaceType::XdgShellV5 << ServerSideDecoration::Mode::Server;
    QTest::newRow("xdgShellV6 - deco") << Test::ShellSurfaceType::XdgShellV6 << ServerSideDecoration::Mode::Server;
    QTest::newRow("xdgShellWmBase - deco") << Test::ShellSurfaceType::XdgShellStable << ServerSideDecoration::Mode::Server;
}

void TestShellClient::testMaximizedToFullscreenXdgShell()
{
    // this test verifies that a window can be properly fullscreened after maximizing
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));

    XdgShellSurface *xdgShellSurface = nullptr;
    // fullscreen the window
    switch (type) {
    case Test::ShellSurfaceType::XdgShellV5:
    case Test::ShellSurfaceType::XdgShellV6:
    case Test::ShellSurfaceType::XdgShellStable:
        xdgShellSurface = qobject_cast<XdgShellSurface*>(shellSurface.data());
        break;
    default:
        Q_UNREACHABLE();
        break;
    }
    QVERIFY(xdgShellSurface);

    // create deco
    QScopedPointer<ServerSideDecoration> deco(Test::waylandServerSideDecoration()->create(surface.data()));
    QSignalSpy decoSpy(deco.data(), &ServerSideDecoration::modeChanged);
    QVERIFY(decoSpy.isValid());
    QVERIFY(decoSpy.wait());
    QFETCH(ServerSideDecoration::Mode, decoMode);
    deco->requestMode(decoMode);
    QVERIFY(decoSpy.wait());
    QCOMPARE(deco->mode(), decoMode);

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->clientSize(), QSize(100, 50));
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
    QSignalSpy fullscreenChangedSpy(c, &ShellClient::fullScreenChanged);
    QVERIFY(fullscreenChangedSpy.isValid());
    QSignalSpy geometryChangedSpy(c, &ShellClient::geometryChanged);
    QVERIFY(geometryChangedSpy.isValid());
    QSignalSpy sizeChangeRequestedSpy(shellSurface.data(), SIGNAL(sizeChanged(QSize)));
    QVERIFY(sizeChangeRequestedSpy.isValid());
    QSignalSpy configureRequestedSpy(shellSurface.data(), SIGNAL(configureRequested(QSize, KWayland::Client::XdgShellSurface::States, quint32)));
    QVERIFY(configureRequestedSpy.isValid());
    xdgShellSurface->setMaximized(true);
    QVERIFY(sizeChangeRequestedSpy.wait());
    QCOMPARE(sizeChangeRequestedSpy.count(), 1);

    for (const auto &it: configureRequestedSpy) {
        xdgShellSurface->ackConfigure(it[2].toInt());
    }
    Test::render(surface.data(), sizeChangeRequestedSpy.last().first().toSize(), Qt::red);
    QVERIFY(geometryChangedSpy.wait());

    QCOMPARE(c->maximizeMode(), MaximizeFull);
    QCOMPARE(geometryChangedSpy.isEmpty(), false);
    geometryChangedSpy.clear();

    // fullscreen the window
    xdgShellSurface->setFullscreen(true);
    QVERIFY(fullscreenChangedSpy.wait());
    if (decoMode == ServerSideDecoration::Mode::Server) {
        QVERIFY(sizeChangeRequestedSpy.wait());
        QCOMPARE(sizeChangeRequestedSpy.count(), 2);
    }
    QCOMPARE(sizeChangeRequestedSpy.last().first().toSize(), QSize(screens()->size(0)));
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(c->isFullScreen());

    for (const auto &it: configureRequestedSpy) {
        xdgShellSurface->ackConfigure(it[2].toInt());
    }
    // render at the new size
    Test::render(surface.data(), sizeChangeRequestedSpy.last().first().toSize(), Qt::red);

    QVERIFY(c->isFullScreen());
    QVERIFY(!c->isDecorated());
    QCOMPARE(c->geometry(), QRect(QPoint(0, 0), sizeChangeRequestedSpy.last().first().toSize()));
    sizeChangeRequestedSpy.clear();

    // swap back to normal
    switch (type) {
    case Test::ShellSurfaceType::XdgShellV5:
    case Test::ShellSurfaceType::XdgShellV6:
    case Test::ShellSurfaceType::XdgShellStable:
        qobject_cast<XdgShellSurface*>(shellSurface.data())->setFullscreen(false);
        qobject_cast<XdgShellSurface*>(shellSurface.data())->setMaximized(false);
        break;
    default:
        Q_UNREACHABLE();
    }
    QVERIFY(fullscreenChangedSpy.wait());
    if (decoMode == ServerSideDecoration::Mode::Server) {
         QVERIFY(sizeChangeRequestedSpy.wait());
         // XDG will legitimately get two updates. They might be batched
         if (xdgShellSurface && sizeChangeRequestedSpy.count() == 1) {
             QVERIFY(sizeChangeRequestedSpy.wait());
         }
         QCOMPARE(sizeChangeRequestedSpy.last().first().toSize(), QSize(100, 50));
    }
    // TODO: should switch to fullscreen once it's updated
    QVERIFY(!c->isFullScreen());
    QCOMPARE(c->isDecorated(), decoMode == ServerSideDecoration::Mode::Server);
}

void TestShellClient::testWindowOpensLargerThanScreen_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testWindowOpensLargerThanScreen()
{
    // this test creates a window which is as large as the screen, but is decorated
    // the window should get resized to fit into the screen, BUG: 366632
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    QSignalSpy sizeChangeRequestedSpy(shellSurface.data(), SIGNAL(sizeChanged(QSize)));
    QVERIFY(sizeChangeRequestedSpy.isValid());

    // create deco
    QScopedPointer<ServerSideDecoration> deco(Test::waylandServerSideDecoration()->create(surface.data()));
    QSignalSpy decoSpy(deco.data(), &ServerSideDecoration::modeChanged);
    QVERIFY(decoSpy.isValid());
    QVERIFY(decoSpy.wait());
    deco->requestMode(ServerSideDecoration::Mode::Server);
    QVERIFY(decoSpy.wait());
    QCOMPARE(deco->mode(), ServerSideDecoration::Mode::Server);

    auto c = Test::renderAndWaitForShown(surface.data(), screens()->size(0), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QCOMPARE(c->clientSize(), screens()->size(0));
    QVERIFY(c->isDecorated());
    QEXPECT_FAIL("", "BUG 366632", Continue);
    QVERIFY(sizeChangeRequestedSpy.wait(10));
}

void TestShellClient::testHidden_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testHidden()
{
    // this test verifies that when hiding window it doesn't get shown
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->isActive());
    QCOMPARE(workspace()->activeClient(), c);
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());
    QVERIFY(c->isShown(true));

    c->hideClient(true);
    QVERIFY(!c->isShown(true));
    QVERIFY(!c->isActive());
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());

    // unhide again
    c->hideClient(false);
    QVERIFY(c->isShown(true));
    QVERIFY(c->wantsInput());
    QVERIFY(c->wantsTabFocus());

    //QCOMPARE(workspace()->activeClient(), c);
}

void TestShellClient::testDesktopFileName()
{
    QIcon::setThemeName(QStringLiteral("breeze"));
    // this test verifies that desktop file name is passed correctly to the window
    QScopedPointer<Surface> surface(Test::createSurface());
    // only xdg-shell as ShellSurface misses the setter
    QScopedPointer<XdgShellSurface> shellSurface(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface.data())));
    shellSurface->setAppId(QByteArrayLiteral("org.kde.foo"));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QCOMPARE(c->desktopFileName(), QByteArrayLiteral("org.kde.foo"));
    QCOMPARE(c->resourceClass(), QByteArrayLiteral("org.kde.foo"));
    QVERIFY(c->resourceName().startsWith("testShellClient"));
    // the desktop file does not exist, so icon should be generic Wayland
    QCOMPARE(c->icon().name(), QStringLiteral("wayland"));

    QSignalSpy desktopFileNameChangedSpy(c, &AbstractClient::desktopFileNameChanged);
    QVERIFY(desktopFileNameChangedSpy.isValid());
    QSignalSpy iconChangedSpy(c, &ShellClient::iconChanged);
    QVERIFY(iconChangedSpy.isValid());
    shellSurface->setAppId(QByteArrayLiteral("org.kde.bar"));
    QVERIFY(desktopFileNameChangedSpy.wait());
    QCOMPARE(c->desktopFileName(), QByteArrayLiteral("org.kde.bar"));
    QCOMPARE(c->resourceClass(), QByteArrayLiteral("org.kde.bar"));
    QVERIFY(c->resourceName().startsWith("testShellClient"));
    // icon should still be wayland
    QCOMPARE(c->icon().name(), QStringLiteral("wayland"));
    QVERIFY(iconChangedSpy.isEmpty());

    const QString dfPath = QFINDTESTDATA("data/example.desktop");
    shellSurface->setAppId(dfPath.toUtf8());
    QVERIFY(desktopFileNameChangedSpy.wait());
    QCOMPARE(iconChangedSpy.count(), 1);
    QCOMPARE(QString::fromUtf8(c->desktopFileName()), dfPath);
    QCOMPARE(c->icon().name(), QStringLiteral("kwin"));
}

void TestShellClient::testCaptionSimplified()
{
    // this test verifies that caption is properly trimmed
    // see BUG 323798 comment #12
    QScopedPointer<Surface> surface(Test::createSurface());
    // only done for xdg-shell as ShellSurface misses the setter
    QScopedPointer<XdgShellSurface> shellSurface(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface.data())));
    const QString origTitle = QString::fromUtf8(QByteArrayLiteral("Was tun, wenn Schüler Autismus haben?\342\200\250\342\200\250\342\200\250 – Marlies Hübner - Mozilla Firefox"));
    shellSurface->setTitle(origTitle);
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->caption() != origTitle);
    QCOMPARE(c->caption(), origTitle.simplified());
}

void TestShellClient::testCaptionMultipleWindows()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface.data())));
    shellSurface->setTitle(QStringLiteral("foo"));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QCOMPARE(c->caption(), QStringLiteral("foo"));
    QCOMPARE(c->captionNormal(), QStringLiteral("foo"));
    QCOMPARE(c->captionSuffix(), QString());

    QScopedPointer<Surface> surface2(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface2(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface2.data())));
    shellSurface2->setTitle(QStringLiteral("foo"));
    auto c2 = Test::renderAndWaitForShown(surface2.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c2);
    QCOMPARE(c2->caption(), QStringLiteral("foo <2>"));
    QCOMPARE(c2->captionNormal(), QStringLiteral("foo"));
    QCOMPARE(c2->captionSuffix(), QStringLiteral(" <2>"));

    QScopedPointer<Surface> surface3(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface3(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface3.data())));
    shellSurface3->setTitle(QStringLiteral("foo"));
    auto c3 = Test::renderAndWaitForShown(surface3.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c3);
    QCOMPARE(c3->caption(), QStringLiteral("foo <3>"));
    QCOMPARE(c3->captionNormal(), QStringLiteral("foo"));
    QCOMPARE(c3->captionSuffix(), QStringLiteral(" <3>"));

    QScopedPointer<Surface> surface4(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface4(qobject_cast<XdgShellSurface*>(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV5, surface4.data())));
    shellSurface4->setTitle(QStringLiteral("bar"));
    auto c4 = Test::renderAndWaitForShown(surface4.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c4);
    QCOMPARE(c4->caption(), QStringLiteral("bar"));
    QCOMPARE(c4->captionNormal(), QStringLiteral("bar"));
    QCOMPARE(c4->captionSuffix(), QString());
    QSignalSpy captionChangedSpy(c4, &ShellClient::captionChanged);
    QVERIFY(captionChangedSpy.isValid());
    shellSurface4->setTitle(QStringLiteral("foo"));
    QVERIFY(captionChangedSpy.wait());
    QCOMPARE(captionChangedSpy.count(), 1);
    QCOMPARE(c4->caption(), QStringLiteral("foo <4>"));
    QCOMPARE(c4->captionNormal(), QStringLiteral("foo"));
    QCOMPARE(c4->captionSuffix(), QStringLiteral(" <4>"));
}

void TestShellClient::testUnresponsiveWindow_data()
{
    QTest::addColumn<QString>("shellInterface");//see env selection in qwaylandintegration.cpp
    QTest::addColumn<bool>("socketMode");

    //wl-shell ping is not implemented
    //QTest::newRow("wl-shell display") << "wl-shell" << false;
    //QTest::newRow("wl-shell socket") << "wl-shell" << true;
    QTest::newRow("xdgv5 display") << "xdg-shell-v5" << false;
    QTest::newRow("xdgv5 socket") << "xdg-shell-v5" << true;
    QTest::newRow("xdgv6 display") << "xdg-shell-v6" << false;
    QTest::newRow("xdgv6 socket") << "xdg-shell-v6" << true;

    //TODO add XDG WM Base when Kwin relies on Qt 5.12
}

void TestShellClient::testUnresponsiveWindow()
{
    // this test verifies that killWindow properly terminates a process
    // for this an external binary is launched
    const QString kill = QFINDTESTDATA(QStringLiteral("kill"));
    QVERIFY(!kill.isEmpty());
    QSignalSpy shellClientAddedSpy(waylandServer(), &WaylandServer::shellClientAdded);
    QVERIFY(shellClientAddedSpy.isValid());

    QScopedPointer<QProcess> process(new QProcess);
    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();

    QFETCH(QString, shellInterface);
    QFETCH(bool, socketMode);
    env.insert("QT_WAYLAND_SHELL_INTEGRATION", shellInterface);
    if (socketMode) {
        int sx[2];
        QVERIFY(socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, sx) >= 0);
        waylandServer()->display()->createClient(sx[0]);
        int socket = dup(sx[1]);
        QVERIFY(socket != -1);
        env.insert(QStringLiteral("WAYLAND_SOCKET"), QByteArray::number(socket));
        env.remove("WAYLAND_DISPLAY");
    } else {
        env.insert("WAYLAND_DISPLAY", s_socketName);
    }
    process->setProcessEnvironment(env);
    process->setProcessChannelMode(QProcess::ForwardedChannels);
    process->setProgram(kill);
    QSignalSpy processStartedSpy{process.data(), &QProcess::started};
    QVERIFY(processStartedSpy.isValid());
    process->start();
    QVERIFY(processStartedSpy.wait());

    AbstractClient *killClient = nullptr;
    if (shellClientAddedSpy.isEmpty()) {
        QVERIFY(shellClientAddedSpy.wait());
    }
    ::kill(process->processId(), SIGUSR1); // send a signal to freeze the process

    killClient = shellClientAddedSpy.first().first().value<AbstractClient*>();
    QVERIFY(killClient);
    QSignalSpy unresponsiveSpy(killClient, &AbstractClient::unresponsiveChanged);
    QSignalSpy killedSpy(process.data(), static_cast<void(QProcess::*)(int,QProcess::ExitStatus)>(&QProcess::finished));
    QSignalSpy deletedSpy(killClient, &QObject::destroyed);

    qint64 startTime = QDateTime::currentMSecsSinceEpoch();

    //wait for the process to be frozen
    QTest::qWait(10);

    //pretend the user clicked the close button
    killClient->closeWindow();

    //client should not yet be marked unresponsive nor killed
    QVERIFY(!killClient->unresponsive());
    QVERIFY(killedSpy.isEmpty());

    QVERIFY(unresponsiveSpy.wait());
    //client should be marked unresponsive but not killed
    auto elapsed1 = QDateTime::currentMSecsSinceEpoch() - startTime;
    QVERIFY(elapsed1 > 900  && elapsed1 < 1200); //ping timer is 1s, but coarse timers on a test across two processes means we need a fuzzy compare
    QVERIFY(killClient->unresponsive());
    QVERIFY(killedSpy.isEmpty());

    QVERIFY(deletedSpy.wait());
    if (!socketMode) {
        //process was killed - because we're across process this could happen in either order
        QVERIFY(killedSpy.count() || killedSpy.wait());
    }

    auto elapsed2 = QDateTime::currentMSecsSinceEpoch() - startTime;
    QVERIFY(elapsed2 > 1800); //second ping comes in a second later
}

void TestShellClient::testX11WindowId_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testX11WindowId()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(c->windowId() != 0);
    QCOMPARE(c->window(), 0u);
}

void TestShellClient::testAppMenu()
{
    //register a faux appmenu client
    QVERIFY (QDBusConnection::sessionBus().registerService("org.kde.kappmenu"));

    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(Test::ShellSurfaceType::XdgShellV6, surface.data()));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QScopedPointer<AppMenu> menu(Test::waylandAppMenuManager()->create(surface.data()));
    QSignalSpy spy(c, &ShellClient::hasApplicationMenuChanged);
    menu->setAddress("service.name", "object/path");
    spy.wait();
    QCOMPARE(c->hasApplicationMenu(), true);
    QCOMPARE(c->applicationMenuServiceName(), QString("service.name"));
    QCOMPARE(c->applicationMenuObjectPath(), QString("object/path"));

    QVERIFY (QDBusConnection::sessionBus().unregisterService("org.kde.kappmenu"));
}

void TestShellClient::testNoDecorationModeRequested_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testNoDecorationModeRequested()
{
    // this test verifies that the decoration follows the default mode if no mode is explicitly requested
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
    QScopedPointer<ServerSideDecoration> deco(Test::waylandServerSideDecoration()->create(surface.data()));
    QSignalSpy decoSpy(deco.data(), &ServerSideDecoration::modeChanged);
    QVERIFY(decoSpy.isValid());
    if (deco->mode() != ServerSideDecoration::Mode::Server) {
        QVERIFY(decoSpy.wait());
    }
    QCOMPARE(deco->mode(), ServerSideDecoration::Mode::Server);

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QCOMPARE(c->noBorder(), false);
    QCOMPARE(c->isDecorated(), true);
}

void TestShellClient::testSendClientWithTransientToDesktop_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase") << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testSendClientWithTransientToDesktop()
{
    // this test verifies that when sending a client to a desktop all transients are also send to that desktop

    VirtualDesktopManager::self()->setCount(2);
    QScopedPointer<Surface> surface{Test::createSurface()};
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<XdgShellSurface> shellSurface{qobject_cast<XdgShellSurface*>(Test::createShellSurface(type, surface.data()))};

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);

    // let's create a transient window
    QScopedPointer<Surface> transientSurface{Test::createSurface()};
    QScopedPointer<XdgShellSurface> transientShellSurface{qobject_cast<XdgShellSurface*>(Test::createShellSurface(type, transientSurface.data()))};
    transientShellSurface->setTransientFor(shellSurface.data());

    auto transient = Test::renderAndWaitForShown(transientSurface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(transient);
    QCOMPARE(workspace()->activeClient(), transient);
    QCOMPARE(transient->transientFor(), c);
    QVERIFY(c->transients().contains(transient));

    QCOMPARE(c->desktop(), 1);
    QVERIFY(!c->isOnAllDesktops());
    QCOMPARE(transient->desktop(), 1);
    QVERIFY(!transient->isOnAllDesktops());
    workspace()->slotWindowToDesktop(2);

    QCOMPARE(c->desktop(), 1);
    QCOMPARE(transient->desktop(), 2);

    // activate c
    workspace()->activateClient(c);
    QCOMPARE(workspace()->activeClient(), c);
    QVERIFY(c->isActive());

    // and send it to the desktop it's already on
    QCOMPARE(c->desktop(), 1);
    QCOMPARE(transient->desktop(), 2);
    workspace()->slotWindowToDesktop(1);

    // which should move the transient back to the desktop
    QCOMPARE(c->desktop(), 1);
    QCOMPARE(transient->desktop(), 1);
}

void TestShellClient::testMinimizeWindowWithTransients_data()
{
    QTest::addColumn<Test::ShellSurfaceType>("type");

    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
    QTest::newRow("xdgShellV6") << Test::ShellSurfaceType::XdgShellV6;
    QTest::newRow("xdgWmBase")  << Test::ShellSurfaceType::XdgShellStable;
}

void TestShellClient::testMinimizeWindowWithTransients()
{
    // this test verifies that when minimizing/unminimizing a window all its
    // transients will be minimized/unminimized as well

    // create the main window
    QScopedPointer<Surface> surface(Test::createSurface());
    QFETCH(Test::ShellSurfaceType, type);
    QScopedPointer<XdgShellSurface> shellSurface(qobject_cast<XdgShellSurface *>(
        Test::createShellSurface(type, surface.data())));
    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QVERIFY(c);
    QVERIFY(!c->isMinimized());

    // create a transient window
    QScopedPointer<Surface> transientSurface(Test::createSurface());
    QScopedPointer<XdgShellSurface> transientShellSurface(qobject_cast<XdgShellSurface *>(
        Test::createShellSurface(type, transientSurface.data())));
    transientShellSurface->setTransientFor(shellSurface.data());
    auto transient = Test::renderAndWaitForShown(transientSurface.data(), QSize(100, 50), Qt::red);
    QVERIFY(transient);
    QVERIFY(!transient->isMinimized());
    QCOMPARE(transient->transientFor(), c);
    QVERIFY(c->hasTransient(transient, false));

    // minimize the main window, the transient should be minimized as well
    c->minimize();
    QVERIFY(c->isMinimized());
    QVERIFY(transient->isMinimized());

    // unminimize the main window, the transient should be unminimized as well
    c->unminimize();
    QVERIFY(!c->isMinimized());
    QVERIFY(!transient->isMinimized());
}

void TestShellClient::testXdgDecoration_data()
{
    QTest::addColumn<KWayland::Client::XdgDecoration::Mode>("requestedMode");
    QTest::addColumn<KWayland::Client::XdgDecoration::Mode>("expectedMode");

    QTest::newRow("client side requested") << XdgDecoration::Mode::ClientSide << XdgDecoration::Mode::ClientSide;
    QTest::newRow("server side requested") << XdgDecoration::Mode::ServerSide << XdgDecoration::Mode::ServerSide;
}

void TestShellClient::testXdgDecoration()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellStableSurface(surface.data()));
    QScopedPointer<XdgDecoration> deco(Test::xdgDecorationManager()->getToplevelDecoration(shellSurface.data()));

    QSignalSpy decorationConfiguredSpy(deco.data(), &XdgDecoration::modeChanged);
    QSignalSpy configureRequestedSpy(shellSurface.data(), &XdgShellSurface::configureRequested);

    QFETCH(KWayland::Client::XdgDecoration::Mode, requestedMode);
    QFETCH(KWayland::Client::XdgDecoration::Mode, expectedMode);

    //request a mode
    deco->setMode(requestedMode);

    //kwin will send a configure
    decorationConfiguredSpy.wait();
    configureRequestedSpy.wait();

    QCOMPARE(decorationConfiguredSpy.count(), 1);
    QCOMPARE(decorationConfiguredSpy.first()[0].value<KWayland::Client::XdgDecoration::Mode>(), expectedMode);
    QVERIFY(configureRequestedSpy.count() > 0);

    shellSurface->ackConfigure(configureRequestedSpy.last()[2].toInt());

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(100, 50), Qt::blue);
    QCOMPARE(c->userCanSetNoBorder(), expectedMode == XdgDecoration::Mode::ServerSide);
    QCOMPARE(c->isDecorated(), expectedMode == XdgDecoration::Mode::ServerSide);
}

void TestShellClient::testXdgNeverCommitted()
{
    //check we don't crash if we create a shell object but delete the ShellClient before committing it
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellStableSurface(surface.data(), nullptr, Test::CreationSetup::CreateOnly));
}

void TestShellClient::testXdgInitialState()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellStableSurface(surface.data(), nullptr, Test::CreationSetup::CreateOnly));
    QSignalSpy configureRequestedSpy(shellSurface.data(), &XdgShellSurface::configureRequested);
    surface->commit(Surface::CommitFlag::None);

    configureRequestedSpy.wait();

    QCOMPARE(configureRequestedSpy.count(), 1);

    const auto size = configureRequestedSpy.first()[0].value<QSize>();

    QCOMPARE(size, QSize(0, 0)); //client should chose it's preferred size

    shellSurface->ackConfigure(configureRequestedSpy.first()[2].toUInt());

    auto c = Test::renderAndWaitForShown(surface.data(), QSize(200,100), Qt::blue);
    QCOMPARE(c->size(), QSize(200, 100));
}

void TestShellClient::testXdgInitiallyMaximised()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellStableSurface(surface.data(), nullptr, Test::CreationSetup::CreateOnly));
    QSignalSpy configureRequestedSpy(shellSurface.data(), &XdgShellSurface::configureRequested);

    shellSurface->setMaximized(true);
    surface->commit(Surface::CommitFlag::None);

    configureRequestedSpy.wait();

    QCOMPARE(configureRequestedSpy.count(), 1);

    const auto size = configureRequestedSpy.first()[0].value<QSize>();
    const auto state = configureRequestedSpy.first()[1].value<KWayland::Client::XdgShellSurface::States>();

    QCOMPARE(size, QSize(1280, 1024));
    QVERIFY(state & KWayland::Client::XdgShellSurface::State::Maximized);

    shellSurface->ackConfigure(configureRequestedSpy.first()[2].toUInt());

    auto c = Test::renderAndWaitForShown(surface.data(), size, Qt::blue);
    QCOMPARE(c->maximizeMode(), MaximizeFull);
    QCOMPARE(c->size(), QSize(1280, 1024));
}

void TestShellClient::testXdgInitiallyMinimized()
{
    QScopedPointer<Surface> surface(Test::createSurface());
    QScopedPointer<XdgShellSurface> shellSurface(Test::createXdgShellStableSurface(surface.data(), nullptr, Test::CreationSetup::CreateOnly));
    QSignalSpy configureRequestedSpy(shellSurface.data(), &XdgShellSurface::configureRequested);

    shellSurface->requestMinimize();
    surface->commit(Surface::CommitFlag::None);

    configureRequestedSpy.wait();

    QCOMPARE(configureRequestedSpy.count(), 1);

    const auto size = configureRequestedSpy.first()[0].value<QSize>();
    const auto state = configureRequestedSpy.first()[1].value<KWayland::Client::XdgShellSurface::States>();

    QCOMPARE(size, QSize(0, 0));
    QCOMPARE(state, 0);

    shellSurface->ackConfigure(configureRequestedSpy.first()[2].toUInt());

    QEXPECT_FAIL("", "Client created in a minimised state is not exposed to kwin bug 404838", Abort);
    auto c = Test::renderAndWaitForShown(surface.data(), size, Qt::blue, QImage::Format_ARGB32, 10);
    QVERIFY(c);
    QVERIFY(c->isMinimized());
}


WAYLANDTEST_MAIN(TestShellClient)
#include "shell_client_test.moc"