File indexing completed on 2024-04-28 16:55:02

 /*
     SPDX-FileCopyrightText: 2008 Aaron Seigo <aseigo@kde.org>
     SPDX-FileCopyrightText: 2013 Sebastian Kügler <sebas@kde.org>
     SPDX-FileCopyrightText: 2013 Ivan Cukic <ivan.cukic@kde.org>
     SPDX-FileCopyrightText: 2013 Marco Martin <mart@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "shellcorona.h"
 #include "debug.h"
 #include "strutmanager.h"
 
 #include <config-plasma.h>
 
 #include <QApplication>
 #include <QDBusConnection>
 #include <QDebug>
 #include <QMenu>
 #include <QQmlContext>
 #include <QQuickItemGrabResult>
 #include <QScreen>
 #include <QUrl>
 
 #include <QJsonDocument>
 #include <QJsonObject>
 
 #include <Plasma/Package>
 #include <Plasma/PluginLoader>
 #include <PlasmaQuick/Dialog>
 #include <kactioncollection.h>
 #include <klocalizedstring.h>
 
 #include <KAuthorized>
 #include <KGlobalAccel>
 #include <KMessageBox>
 #include <KWindowSystem>
 #include <KX11Extras>
 #include <kactivities/consumer.h>
 #include <kactivities/controller.h>
 #include <kdeclarative/kdeclarative.h>
 #include <kdeclarative/qmlobjectsharedengine.h>
 #include <kdirwatch.h>
 #include <ksycoca.h>
 
 #include <KPackage/PackageLoader>
 
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/plasmashell.h>
 #include <KWayland/Client/plasmawindowmanagement.h>
 #include <KWayland/Client/registry.h>
 #include <plasma/plasma.h>
 
 #include "config-ktexteditor.h" // HAVE_KTEXTEDITOR
 
 #include "alternativeshelper.h"
 #include "desktopview.h"
 #include "osd.h"
 #include "panelview.h"
 #include "screenpool.h"
 #if USE_SCRIPTING
 #include "scripting/scriptengine.h"
 #endif
 #include "shellcontainmentconfig.h"
 
 #include "debug.h"
 #include "futureutil.h"
 #include "plasmashelladaptor.h"
 
 #ifndef NDEBUG
 #define CHECK_SCREEN_INVARIANTS screenInvariants();
 #else
 #define CHECK_SCREEN_INVARIANTS
 #endif
 
 #if HAVE_X11
 #include <NETWM>
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 #include <private/qtx11extras_p.h>
 #else
 #include <QX11Info>
 #endif
 #include <xcb/xcb.h>
 #endif
 #include <chrono>
 
 using namespace std::chrono_literals;
 static const int s_configSyncDelay = 10000; // 10 seconds
 
 ShellCorona::ShellCorona(QObject *parent)
     : Plasma::Corona(parent)
     , m_config(KSharedConfig::openConfig(QStringLiteral("plasmarc")))
     , m_screenPool(new ScreenPool(this))
     , m_activityController(new KActivities::Controller(this))
     , m_addPanelAction(nullptr)
     , m_addPanelsMenu(nullptr)
     , m_waylandPlasmaShell(nullptr)
     , m_closingDown(false)
     , m_strutManager(new StrutManager(this))
     , m_shellContainmentConfig(nullptr)
 {
     setupWaylandIntegration();
     qmlRegisterUncreatableType<DesktopView>("org.kde.plasma.shell", 2, 0, "Desktop", QStringLiteral("It is not possible to create objects of type Desktop"));
     qmlRegisterUncreatableType<PanelView>("org.kde.plasma.shell", 2, 0, "Panel", QStringLiteral("It is not possible to create objects of type Panel"));
 
     KConfigGroup cg(KSharedConfig::openConfig(QStringLiteral("kdeglobals")), "KDE");
     const QString packageName = cg.readEntry("LookAndFeelPackage", QString());
     m_lookAndFeelPackage = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/LookAndFeel"), packageName);
 
     // Accent color setting
     KSharedConfigPtr globalConfig = KSharedConfig::openConfig();
     KConfigGroup accentColorConfigGroup(globalConfig, "General");
     m_accentColorFromWallpaperEnabled = accentColorConfigGroup.readEntry("accentColorFromWallpaper", false);
 
     m_accentColorConfigWatcher = KConfigWatcher::create(globalConfig);
     connect(m_accentColorConfigWatcher.data(), &KConfigWatcher::configChanged, this, [this](const KConfigGroup &group, const QByteArrayList &names) {
         if (names.contains(QByteArrayLiteral("accentColorFromWallpaper"))) {
             const bool result = group.readEntry("accentColorFromWallpaper", false);
             if (m_accentColorFromWallpaperEnabled != result) {
                 m_accentColorFromWallpaperEnabled = result;
                 Q_EMIT accentColorFromWallpaperEnabledChanged();
             }
         }
     });
 }
 
 void ShellCorona::init()
 {
 #if USE_SCRIPTING
     connect(this, &Plasma::Corona::containmentCreated, this, [this](Plasma::Containment *c) {
         executeSetupPlasmoidScript(c, c);
     });
 #endif
 
     connect(this, &Plasma::Corona::availableScreenRectChanged, this, &Plasma::Corona::availableScreenRegionChanged);
 
     m_appConfigSyncTimer.setSingleShot(true);
     m_appConfigSyncTimer.setInterval(s_configSyncDelay);
     connect(&m_appConfigSyncTimer, &QTimer::timeout, this, &ShellCorona::syncAppConfig);
     // we want our application config with screen mapping to always be in sync with the applets one, so a crash at any time will still
     // leave containments pointing to the correct screens
     connect(this, &Corona::configSynced, this, &ShellCorona::syncAppConfig);
 
     m_waitingPanelsTimer.setSingleShot(true);
     m_waitingPanelsTimer.setInterval(250ms);
     connect(&m_waitingPanelsTimer, &QTimer::timeout, this, &ShellCorona::createWaitingPanels);
 
 #ifndef NDEBUG
     m_invariantsTimer.setSingleShot(true);
     m_invariantsTimer.setInterval(250ms);
     connect(&m_invariantsTimer, &QTimer::timeout, this, &ShellCorona::screenInvariants);
 #endif
 
     m_desktopDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(kPackage().filePath("defaults")), "Desktop");
     m_lnfDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(m_lookAndFeelPackage.filePath("defaults")), "Desktop");
     m_lnfDefaultsConfig = KConfigGroup(&m_lnfDefaultsConfig, QStringLiteral("org.kde.plasma.desktop"));
 
     new PlasmaShellAdaptor(this);
 
     QDBusConnection dbus = QDBusConnection::sessionBus();
     dbus.registerObject(QStringLiteral("/PlasmaShell"), this);
 
     // Look for theme config in plasmarc, if it isn't configured, take the theme from the
     // LookAndFeel package, if either is set, change the default theme
 
     connect(qApp, &QCoreApplication::aboutToQuit, this, [this]() {
         // saveLayout is a slot but arguments not compatible
         m_closingDown = true;
         saveLayout();
     });
 
     connect(this, &ShellCorona::containmentAdded, this, &ShellCorona::handleContainmentAdded);
 
     QAction *dashboardAction = actions()->addAction(QStringLiteral("show dashboard"));
     QObject::connect(dashboardAction, &QAction::triggered, this, &ShellCorona::setDashboardShown);
     dashboardAction->setText(i18n("Show Desktop"));
     connect(KWindowSystem::self(), &KWindowSystem::showingDesktopChanged, dashboardAction, [dashboardAction](bool showing) {
         dashboardAction->setText(showing ? i18n("Hide Desktop") : i18n("Show Desktop"));
         dashboardAction->setChecked(showing);
     });
 
     dashboardAction->setAutoRepeat(true);
     dashboardAction->setCheckable(true);
     dashboardAction->setIcon(QIcon::fromTheme(QStringLiteral("dashboard-show")));
     KGlobalAccel::self()->setGlobalShortcut(dashboardAction, Qt::CTRL | Qt::Key_F12);
 
     checkAddPanelAction();
     connect(KSycoca::self(), &KSycoca::databaseChanged, this, &ShellCorona::checkAddPanelAction);
 
     // Activity stuff
     QAction *activityAction = actions()->addAction(QStringLiteral("manage activities"));
     connect(activityAction, &QAction::triggered, this, &ShellCorona::toggleActivityManager);
     activityAction->setText(i18n("Show Activity Switcher"));
     activityAction->setIcon(QIcon::fromTheme(QStringLiteral("activities")));
     activityAction->setShortcut(QKeySequence(QStringLiteral("alt+d, alt+a")));
     activityAction->setShortcutContext(Qt::ApplicationShortcut);
 
     KGlobalAccel::self()->setGlobalShortcut(activityAction, Qt::META | Qt::Key_Q);
 
     QAction *stopActivityAction = actions()->addAction(QStringLiteral("stop current activity"));
     QObject::connect(stopActivityAction, &QAction::triggered, this, &ShellCorona::stopCurrentActivity);
 
     stopActivityAction->setText(i18n("Stop Current Activity"));
     stopActivityAction->setVisible(false);
 
     KGlobalAccel::self()->setGlobalShortcut(stopActivityAction, Qt::META | Qt::Key_S);
 
     QAction *previousActivityAction = actions()->addAction(QStringLiteral("switch to previous activity"));
     connect(previousActivityAction, &QAction::triggered, this, &ShellCorona::previousActivity);
     previousActivityAction->setText(i18n("Switch to Previous Activity"));
     previousActivityAction->setShortcutContext(Qt::ApplicationShortcut);
 
     KGlobalAccel::self()->setGlobalShortcut(previousActivityAction, QKeySequence());
 
     QAction *nextActivityAction = actions()->addAction(QStringLiteral("switch to next activity"));
     connect(nextActivityAction, &QAction::triggered, this, &ShellCorona::nextActivity);
     nextActivityAction->setText(i18n("Switch to Next Activity"));
     nextActivityAction->setShortcutContext(Qt::ApplicationShortcut);
 
     KGlobalAccel::self()->setGlobalShortcut(nextActivityAction, QKeySequence());
 
     connect(m_activityController, &KActivities::Controller::currentActivityChanged, this, &ShellCorona::currentActivityChanged);
     connect(m_activityController, &KActivities::Controller::activityAdded, this, &ShellCorona::activityAdded);
     connect(m_activityController, &KActivities::Controller::activityRemoved, this, &ShellCorona::activityRemoved);
 
     KActionCollection *taskbarActions = new KActionCollection(this);
     for (int i = 0; i < 10; ++i) {
         const int entryNumber = i + 1;
         const Qt::Key key = static_cast<Qt::Key>(Qt::Key_0 + (entryNumber % 10));
 
         QAction *action = taskbarActions->addAction(QStringLiteral("activate task manager entry %1").arg(QString::number(entryNumber)));
         action->setText(i18n("Activate Task Manager Entry %1", entryNumber));
         KGlobalAccel::setGlobalShortcut(action, QKeySequence(Qt::META + key));
         connect(action, &QAction::triggered, this, [this, i] {
             activateTaskManagerEntry(i);
         });
     }
 
     new Osd(m_config, this);
 
     // catch when plasmarc changes, so we e.g. enable/disable the OSd
     m_configPath = QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation) + QLatin1Char('/') + m_config->name();
     KDirWatch::self()->addFile(m_configPath);
     connect(KDirWatch::self(), &KDirWatch::dirty, this, &ShellCorona::configurationChanged);
     connect(KDirWatch::self(), &KDirWatch::created, this, &ShellCorona::configurationChanged);
 
     connect(qApp, &QGuiApplication::focusWindowChanged, this, [this](QWindow *focusWindow) {
         if (!focusWindow) {
             setEditMode(false);
         }
     });
     connect(this, &ShellCorona::editModeChanged, this, [this](bool edit) {
         setDashboardShown(edit);
     });
 
     QAction *manageContainmentsAction = actions()->addAction(QStringLiteral("manage-containments"));
     manageContainmentsAction->setIcon(QIcon::fromTheme(QStringLiteral("preferences-system-windows-effect-fadedesktop")));
     manageContainmentsAction->setText(i18n("Manage Desktops And Panels..."));
     connect(manageContainmentsAction, &QAction::triggered, this, [this]() {
         if (m_shellContainmentConfig == nullptr) {
             m_shellContainmentConfig = new ShellContainmentConfig(this);
             m_shellContainmentConfig->init();
         }
         // Swapping desktop views around causes problems with the show desktop effect
         setEditMode(false);
     });
     auto updateManageContainmentsVisiblility = [this, manageContainmentsAction]() {
         QSet<int> allScreenIds;
         for (auto *cont : containments()) {
             allScreenIds.insert(cont->lastScreen());
         }
         manageContainmentsAction->setVisible(allScreenIds.count() > 1);
     };
     connect(this, &ShellCorona::containmentAdded, this, updateManageContainmentsVisiblility);
     connect(this, &ShellCorona::screenRemoved, this, updateManageContainmentsVisiblility);
     updateManageContainmentsVisiblility();
 
     QAction *cyclePanelFocusAction = actions()->addAction(QStringLiteral("cycle-panels"));
     cyclePanelFocusAction->setText(i18n("Move keyboard focus between panels"));
     KGlobalAccel::self()->setGlobalShortcut(cyclePanelFocusAction, Qt::META | Qt::ALT | Qt::Key_P);
     connect(cyclePanelFocusAction, &QAction::triggered, this, &ShellCorona::slotCyclePanelFocus);
 
     unload();
     /*
      * we want to make an initial load once we have loaded the activities _IF_ KAMD is running
      * it is valid for KAMD to not be running.
      *
      * Potentially 2 async jobs
      *
      * It might seem that we only need this connection if the activityConsumer is currently in state Unknown, however
      * there is an issue where m_activityController will start the kactivitymanagerd, as KAMD is starting the serviceStatus will be "not running"
      * Whilst we are loading the kscreen config, the event loop runs and we might find KAMD has started.
      * m_activityController will change from "not running" to unknown, and might still be unknown when the kscreen fetching is complete.
      *
      * if that happens we want to continue monitoring for state changes, and only finally load when it is up.
      *
      * See https://bugs.kde.org/show_bug.cgi?id=342431 be careful about changing
      *
      * The unique connection makes sure we don't reload plasma if KAMD ever crashes and reloads, the signal is disconnected in the body of load
      */
     connect(m_activityController, &KActivities::Controller::serviceStatusChanged, this, &ShellCorona::load, Qt::UniqueConnection);
     load();
 }
 
 ShellCorona::~ShellCorona()
 {
     while (!containments().isEmpty()) {
         // Deleting a containment will remove it from the list due to QObject::destroyed connect in Corona
         // Deleting a containment in turn also kills any panel views
         delete containments().constFirst();
     }
 }
 
 KPackage::Package ShellCorona::lookAndFeelPackage()
 {
     return m_lookAndFeelPackage;
 }
 
 void ShellCorona::setShell(const QString &shell)
 {
     if (m_shell == shell) {
         return;
     }
 
     m_shell = shell;
     KPackage::Package package = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/Shell"));
     package.setPath(shell);
     package.setAllowExternalPaths(true);
     setKPackage(package);
     m_desktopDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(package.filePath("defaults")), "Desktop");
     m_lnfDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(m_lookAndFeelPackage.filePath("defaults")), "Desktop");
     m_lnfDefaultsConfig = KConfigGroup(&m_lnfDefaultsConfig, shell);
 
     const QString themeGroupKey = QStringLiteral("Theme");
     const QString themeNameKey = QStringLiteral("name");
 
     QString themeName;
 
     KConfigGroup plasmarc(m_config, themeGroupKey);
     themeName = plasmarc.readEntry(themeNameKey, themeName);
 
     if (themeName.isEmpty()) {
         KConfigGroup shellCfg = KConfigGroup(KSharedConfig::openConfig(package.filePath("defaults")), "Theme");
         themeName = shellCfg.readEntry(themeNameKey, "default");
     }
 
     if (!themeName.isEmpty()) {
         Plasma::Theme *t = new Plasma::Theme(this);
         t->setThemeName(themeName);
     }
 }
 
 QJsonObject dumpconfigGroupJS(const KConfigGroup &rootGroup)
 {
     QJsonObject result;
 
     QStringList hierarchy;
     QStringList escapedHierarchy;
     QList<KConfigGroup> groups{rootGroup};
     QSet<QString> visitedNodes;
 
     const QSet<QString> forbiddenKeys{QStringLiteral("activityId"),
                                       QStringLiteral("ItemsGeometries"),
                                       QStringLiteral("AppletOrder"),
                                       QStringLiteral("SystrayContainmentId"),
                                       QStringLiteral("location"),
                                       QStringLiteral("plugin")};
 
     auto groupID = [&escapedHierarchy]() {
         return '/' + escapedHierarchy.join('/');
     };
 
     // Perform a depth-first tree traversal for config groups
     while (!groups.isEmpty()) {
         KConfigGroup cg = groups.last();
 
         KConfigGroup parentCg = cg;
         // FIXME: name is not enough
 
         hierarchy.clear();
         escapedHierarchy.clear();
         while (parentCg.isValid() && parentCg.name() != rootGroup.name()) {
             const auto name = parentCg.name();
             hierarchy.prepend(name);
             escapedHierarchy.prepend(QString::fromUtf8(QUrl::toPercentEncoding(name.toUtf8())));
             parentCg = parentCg.parent();
         }
 
         visitedNodes.insert(groupID());
         groups.pop_back();
 
         QJsonObject configGroupJson;
 
         if (!cg.keyList().isEmpty()) {
             // TODO: this is conditional if applet or containment
 
             const auto map = cg.entryMap();
             auto i = map.cbegin();
             for (; i != map.cend(); ++i) {
                 // some blacklisted keys we don't want to save
                 if (!forbiddenKeys.contains(i.key())) {
                     configGroupJson.insert(i.key(), i.value());
                 }
             }
         }
 
         const auto groupList = cg.groupList();
         for (const QString &groupName : groupList) {
             if (groupName == QLatin1String("Applets") || visitedNodes.contains(groupID() + '/' + groupName)) {
                 continue;
             }
             groups << KConfigGroup(&cg, groupName);
         }
 
         if (!configGroupJson.isEmpty()) {
             result.insert(groupID(), configGroupJson);
         }
     }
 
     return result;
 }
 
 QByteArray ShellCorona::dumpCurrentLayoutJS() const
 {
     QJsonObject root;
     root.insert("serializationFormatVersion", "1");
 
     // same gridUnit calculation as ScriptEngine
     int gridUnit = QFontMetrics(QGuiApplication::font()).boundingRect(QStringLiteral("M")).height();
     if (gridUnit % 2 != 0) {
         gridUnit++;
     }
 
     auto isPanel = [](Plasma::Containment *cont) {
         return (cont->formFactor() == Plasma::Types::Horizontal || cont->formFactor() == Plasma::Types::Vertical)
             && (cont->location() == Plasma::Types::TopEdge || cont->location() == Plasma::Types::BottomEdge || cont->location() == Plasma::Types::LeftEdge
                 || cont->location() == Plasma::Types::RightEdge)
             && cont->pluginMetaData().pluginId() != QLatin1String("org.kde.plasma.private.systemtray");
     };
 
     auto isDesktop = [](Plasma::Containment *cont) {
         return !cont->activity().isEmpty();
     };
 
     const auto containments = ShellCorona::containments();
 
     // Collecting panels
 
     QJsonArray panelsJsonArray;
 
     for (Plasma::Containment *cont : containments) {
         if (!isPanel(cont)) {
             continue;
         }
 
         QJsonObject panelJson;
 
         const PanelView *view = m_panelViews.value(cont);
         const auto location = cont->location();
 
         panelJson.insert("location",
                          location == Plasma::Types::TopEdge         ? "top"
                              : location == Plasma::Types::LeftEdge  ? "left"
                              : location == Plasma::Types::RightEdge ? "right"
                                                                     : /* Plasma::Types::BottomEdge */ "bottom");
 
         const qreal height =
             // If we do not have a panel, fallback to 4 units
             !view ? 4 : (qreal)view->totalThickness() / gridUnit;
 
         panelJson.insert("height", height);
         if (view) {
             const auto alignment = view->alignment();
             panelJson.insert("maximumLength", (qreal)view->maximumLength() / gridUnit);
             panelJson.insert("minimumLength", (qreal)view->minimumLength() / gridUnit);
             panelJson.insert("offset", (qreal)view->offset() / gridUnit);
             panelJson.insert("alignment", alignment == Qt::AlignRight ? "right" : alignment == Qt::AlignCenter ? "center" : "left");
             switch (view->visibilityMode()) {
             case PanelView::AutoHide:
                 panelJson.insert("hiding", "autohide");
                 break;
             case PanelView::LetWindowsCover:
                 panelJson.insert("hiding", "windowscover");
                 break;
             case PanelView::WindowsGoBelow:
                 panelJson.insert("hiding", "windowsbelow");
                 break;
             case PanelView::NormalPanel:
             default:
                 panelJson.insert("hiding", "normal");
                 break;
             }
         }
 
         // Saving the config keys
         const KConfigGroup contConfig = cont->config();
 
         panelJson.insert("config", dumpconfigGroupJS(contConfig));
 
         // Generate the applets array
         QJsonArray appletsJsonArray;
 
         // Try to parse the encoded applets order
         const KConfigGroup genericConf(&contConfig, QStringLiteral("General"));
         const QStringList appletsOrderStrings = genericConf.readEntry(QStringLiteral("AppletOrder"), QString()).split(QChar(';'));
 
         // Consider the applet order to be valid only if there are as many entries as applets()
         if (appletsOrderStrings.length() == cont->applets().length()) {
             for (const QString &appletId : appletsOrderStrings) {
                 KConfigGroup appletConfig(&contConfig, QStringLiteral("Applets"));
                 appletConfig = KConfigGroup(&appletConfig, appletId);
 
                 const QString pluginName = appletConfig.readEntry(QStringLiteral("plugin"), QString());
 
                 if (pluginName.isEmpty()) {
                     continue;
                 }
 
                 QJsonObject appletJson;
 
                 appletConfig = KConfigGroup(&appletConfig, QStringLiteral("Configuration"));
 
                 appletJson.insert("plugin", pluginName);
                 appletJson.insert("config", dumpconfigGroupJS(appletConfig));
 
                 appletsJsonArray << appletJson;
             }
 
         } else {
             const auto applets = cont->applets();
             for (Plasma::Applet *applet : applets) {
                 QJsonObject appletJson;
 
                 KConfigGroup appletConfig = applet->config();
 
                 appletJson.insert("plugin", applet->pluginMetaData().pluginId());
                 appletJson.insert("config", dumpconfigGroupJS(appletConfig));
 
                 appletsJsonArray << appletJson;
             }
         }
 
         panelJson.insert("applets", appletsJsonArray);
 
         panelsJsonArray << panelJson;
     }
 
     root.insert("panels", panelsJsonArray);
 
     // Now we are collecting desktops
 
     QJsonArray desktopsJson;
 
     const auto currentActivity = m_activityController->currentActivity();
 
     for (Plasma::Containment *cont : containments) {
         if (!isDesktop(cont) || cont->activity() != currentActivity) {
             continue;
         }
 
         QJsonObject desktopJson;
 
         desktopJson.insert("wallpaperPlugin", cont->wallpaper());
 
         // Get the config for the containment
         KConfigGroup contConfig = cont->config();
         desktopJson.insert("config", dumpconfigGroupJS(contConfig));
 
         // Try to parse the item geometries
         const KConfigGroup genericConf(&contConfig, QStringLiteral("General"));
         const QStringList appletsGeomStrings = genericConf.readEntry(QStringLiteral("ItemsGeometries"), QString()).split(QChar(';'));
 
         QHash<QString, QRect> appletGeometries;
         for (const QString &encoded : appletsGeomStrings) {
             const QStringList keyValue = encoded.split(QChar(':'));
             if (keyValue.length() != 2) {
                 continue;
             }
 
             const QStringList rectPieces = keyValue.last().split(QChar(','));
             if (rectPieces.length() != 5) {
                 continue;
             }
 
             QRect rect(rectPieces[0].toInt(), rectPieces[1].toInt(), rectPieces[2].toInt(), rectPieces[3].toInt());
 
             appletGeometries[keyValue.first()] = rect;
         }
 
         QJsonArray appletsJsonArray;
 
         const auto applets = cont->applets();
         for (Plasma::Applet *applet : applets) {
             const QRect geometry = appletGeometries.value(QStringLiteral("Applet-") % QString::number(applet->id()));
 
             QJsonObject appletJson;
 
             appletJson.insert("title", applet->title());
             appletJson.insert("plugin", applet->pluginMetaData().pluginId());
 
             appletJson.insert("geometry.x", geometry.x() / gridUnit);
             appletJson.insert("geometry.y", geometry.y() / gridUnit);
             appletJson.insert("geometry.width", geometry.width() / gridUnit);
             appletJson.insert("geometry.height", geometry.height() / gridUnit);
 
             KConfigGroup appletConfig = applet->config();
             appletJson.insert("config", dumpconfigGroupJS(appletConfig));
 
             appletsJsonArray << appletJson;
         }
 
         desktopJson.insert("applets", appletsJsonArray);
         desktopsJson << desktopJson;
     }
 
     root.insert("desktops", desktopsJson);
 
     QJsonDocument json;
     json.setObject(root);
 
     return
         "var plasma = getApiVersion(1);\n\n"
         "var layout = " + json.toJson() + ";\n\n"
         "plasma.loadSerializedLayout(layout);\n";
 }
 
 void ShellCorona::loadLookAndFeelDefaultLayout(const QString &packageName)
 {
     KPackage::Package newPack = m_lookAndFeelPackage;
     newPack.setPath(packageName);
 
     if (!newPack.isValid()) {
         return;
     }
 
     KSharedConfig::Ptr conf = KSharedConfig::openConfig(QLatin1String("plasma-") + m_shell + QLatin1String("-appletsrc"), KConfig::SimpleConfig);
 
     m_lookAndFeelPackage.setPath(packageName);
 
     // get rid of old config
     const QStringList groupList = conf->groupList();
     for (const QString &group : groupList) {
         conf->deleteGroup(group);
     }
     conf->sync();
     unload();
     // Put load in queue of the event loop to wait for the whole set of containments to have been deleteLater(), as some like FolderView operate on singletons
     // which can cause inconsistent states
     QTimer::singleShot(0, this, &ShellCorona::load);
 }
 
 QString ShellCorona::shell() const
 {
     return m_shell;
 }
 
 void ShellCorona::sanitizeScreenLayout(const QString &configFileName)
 {
     KConfigGroup cg(KSharedConfig::openConfig(configFileName), QStringLiteral("Containments"));
 
     // The containment-> screen mappings we found in the config file
     QHash<QString, QMap<int, QString>> savedContainmentScreens;
 
     // Desktop containments with screen = -1 or duplicated wanting to go on the same screen as somebody else
     QStringList orphanContainments;
     // Panel containments we found we may want to remap the screen
     QStringList panelContainments;
     QSet<Plasma::Types::Location> panelLocations({Plasma::Types::TopEdge, Plasma::Types::BottomEdge, Plasma::Types::LeftEdge, Plasma::Types::RightEdge});
 
     for (const QString &idStr : cg.groupList()) {
         if (idStr.toInt() <= 0) {
             continue;
         }
 
         KConfigGroup contCg(&cg, idStr);
         int lastScreen = contCg.readEntry(QStringLiteral("lastScreen"), -1);
 
         if (panelLocations.contains(Plasma::Types::Location(contCg.readEntry(QStringLiteral("location"), 0)))) {
             if (lastScreen >= 0) {
                 panelContainments.append(idStr);
             }
             continue;
         }
 
         const QString &activity = contCg.readEntry(QStringLiteral("activityId"), QString());
 
         if (lastScreen >= 0 && !savedContainmentScreens[activity].contains(lastScreen)) {
             savedContainmentScreens[activity][lastScreen] = idStr;
         } else {
             orphanContainments.append(idStr);
         }
     }
 
     QHash<int, int> screenMapping;
 
     // Ensure desktops screens are progressive
     for (auto activityIt = savedContainmentScreens.begin(); activityIt != savedContainmentScreens.end(); activityIt++) {
         const QString &activity = activityIt.key();
         int progressiveScreen = 0;
         for (auto originalScreenIt = activityIt.value().begin(); originalScreenIt != activityIt.value().end(); originalScreenIt++) {
             KConfigGroup contCg(&cg, originalScreenIt.value());
             screenMapping[originalScreenIt.key()] = progressiveScreen;
             contCg.writeEntry(QStringLiteral("lastScreen"), progressiveScreen++);
         }
 
         for (auto orphanContainmentsIt = orphanContainments.constBegin(); orphanContainmentsIt != orphanContainments.constEnd(); orphanContainmentsIt++) {
             KConfigGroup contCg(&cg, (*orphanContainmentsIt));
             const QString &orphanActivity = contCg.readEntry(QStringLiteral("activityId"), QString());
             if (orphanActivity == activity) {
                 contCg.writeEntry(QStringLiteral("lastScreen"), progressiveScreen++);
             }
         }
     }
 
     // Remap panels to the screen changes we did for desktops
     for (auto panelsIt = panelContainments.begin(); panelsIt != panelContainments.end(); panelsIt++) {
         KConfigGroup contCg(&cg, (*panelsIt));
         int lastScreen = contCg.readEntry(QStringLiteral("lastScreen"), -1);
 
         // If we don't know where to put the panel, put it on the first screen
         contCg.writeEntry(QStringLiteral("lastScreen"), screenMapping.value(lastScreen, 0));
     }
 }
 
 void ShellCorona::load()
 {
     if (m_shell.isEmpty()) {
         return;
     }
 
     auto activityStatus = m_activityController->serviceStatus();
     if (activityStatus != KActivities::Controller::Running && !qApp->property("org.kde.KActivities.core.disableAutostart").toBool()) {
         if (activityStatus == KActivities::Controller::NotRunning) {
             qWarning("Aborting shell load: The activity manager daemon (kactivitymanagerd) is not running.");
             qWarning(
                 "If this Plasma has been installed into a custom prefix, verify that its D-Bus services dir is known to the system for the daemon to be "
                 "activatable.");
         }
         return;
     }
 
     disconnect(m_activityController, &KActivities::Controller::serviceStatusChanged, this, &ShellCorona::load);
 
     // TODO: a kconf_update script is needed
     QString configFileName(QStringLiteral("plasma-") + m_shell + QStringLiteral("-appletsrc"));
 
     // Make sure all containments have screen numbers starting from 0 and are sequential
     sanitizeScreenLayout(configFileName);
 
     loadLayout(configFileName);
 
     checkActivities();
 
     if (containments().isEmpty()) {
         // Seems like we never really get to this point since loadLayout already
         // (virtually) calls loadDefaultLayout if it does not load anything
         // from the config file. Maybe if the config file is not empty,
         // but still does not have any containments
         loadDefaultLayout();
         processUpdateScripts();
     } else {
         processUpdateScripts();
         const auto containments = this->containments();
 
         // Don't give a view to containments that don't want one (negative lastscreen)
         // (this is pretty mucha special case for the systray)
         // also, make sure we don't have a view already.
         // this will be true for first startup as the view has already been created at the new Panel JS call
         std::copy_if(containments.constBegin(), containments.constEnd(), std::back_inserter(m_waitingPanels), [this](Plasma::Containment *containment) {
             return (
                 (containment->containmentType() == Plasma::Types::PanelContainment || containment->containmentType() == Plasma::Types::CustomPanelContainment)
                 && !m_waitingPanels.contains(containment) && containment->lastScreen() >= 0 && !m_panelViews.contains(containment));
         });
     }
 
     // NOTE: this is needed in case loadLayout() did *not* call loadDefaultLayout()
     // it needs to be after of loadLayout() as it would always create new
     // containments on each startup otherwise
     const auto screens = m_screenPool->screenOrder();
     for (QScreen *screen : screens) {
         QSet<QScreen *> managedScreens;
         for (auto *desk : m_desktopViewForScreen) {
             managedScreens.insert(desk->screenToFollow());
         }
 
         // the containments may have been created already by the startup script
         // check their existence in order to not have duplicated desktopviews
         if (!managedScreens.contains(screen)) {
             addOutput(screen);
         }
     }
     connect(m_screenPool, &ScreenPool::screenOrderChanged, this, &ShellCorona::handleScreenOrderChanged, Qt::UniqueConnection);
     connect(m_screenPool, &ScreenPool::screenRemoved, this, &ShellCorona::handleScreenRemoved, Qt::UniqueConnection);
 
     if (!m_waitingPanels.isEmpty()) {
         m_waitingPanelsTimer.start();
     }
 
     if (config()->isImmutable() || !KAuthorized::authorize(QStringLiteral("plasma/plasmashell/unlockedDesktop"))) {
         setImmutability(Plasma::Types::SystemImmutable);
     } else {
         KConfigGroup coronaConfig(config(), "General");
         setImmutability((Plasma::Types::ImmutabilityType)coronaConfig.readEntry("immutability", static_cast<int>(Plasma::Types::Mutable)));
     }
 }
 
 #ifndef NDEBUG
 void ShellCorona::screenInvariants() const
 {
     if (m_screenPool->noRealOutputsConnected()) {
         Q_ASSERT(m_desktopViewForScreen.isEmpty());
         Q_ASSERT(m_panelViews.isEmpty());
         return;
     }
 
     QSet<QScreen *> managedScreens;
     for (auto *desk : m_desktopViewForScreen) {
         managedScreens.insert(desk->screenToFollow());
     }
 
     Q_ASSERT(managedScreens.count() <= m_screenPool->screenOrder().count());
 
     QSet<QScreen *> screens;
     for (QScreen *knownScreen : managedScreens) {
         const int id = m_screenPool->idForScreen(knownScreen);
         const DesktopView *view = desktopForScreen(knownScreen);
         Q_ASSERT(view->isVisible());
         QScreen *screen = view->screenToFollow();
         Q_ASSERT(knownScreen == screen);
         Q_ASSERT(!screens.contains(screen));
         //         commented out because a different part of the code-base is responsible for this
         //         and sometimes is not yet called here.
         //         Q_ASSERT(!view->fillScreen() || view->geometry() == screen->geometry());
 
         Q_ASSERT(view->containment()->screen() == id || view->containment()->screen() == -1);
         Q_ASSERT(view->containment()->lastScreen() == id || view->containment()->lastScreen() == -1);
         Q_ASSERT(view->isVisible());
 
         for (const PanelView *panel : m_panelViews) {
             if (panel->screenToFollow() == screen) {
                 Q_ASSERT(panel->containment());
                 Q_ASSERT(panel->containment()->screen() == id || panel->containment()->screen() == -1);
                 // If any kscreen related activities occurred
                 // during startup, the panel wouldn't be visible yet, and this would assert
                 if (panel->containment()->isUiReady()) {
                     Q_ASSERT(panel->isVisible());
                 }
             }
         }
 
         screens.insert(screen);
     }
 
     if (m_desktopViewForScreen.isEmpty()) {
         qWarning() << "no screens!!";
     }
 }
 #endif
 
 void ShellCorona::showAlternativesForApplet(Plasma::Applet *applet)
 {
     const QUrl alternativesQML = kPackage().fileUrl("appletalternativesui");
     if (alternativesQML.isEmpty()) {
         return;
     }
 
     auto *qmlObj = new KDeclarative::QmlObjectSharedEngine(this);
     qmlObj->setInitializationDelayed(true);
     qmlObj->setSource(alternativesQML);
 
     AlternativesHelper *helper = new AlternativesHelper(applet, qmlObj);
     qmlObj->rootContext()->setContextProperty(QStringLiteral("alternativesHelper"), helper);
 
     qmlObj->completeInitialization();
 
     auto dialog = qobject_cast<PlasmaQuick::Dialog *>(qmlObj->rootObject());
     if (!dialog) {
         qCWarning(PLASMASHELL) << "Alternatives UI does not inherit from Dialog";
         delete qmlObj;
         return;
     }
     connect(applet, &Plasma::Applet::destroyedChanged, qmlObj, [qmlObj](bool destroyed) {
         if (!destroyed) {
             return;
         }
         qmlObj->deleteLater();
     });
     connect(dialog, &PlasmaQuick::Dialog::visibleChanged, qmlObj, [qmlObj](bool visible) {
         if (visible) {
             return;
         }
         qmlObj->deleteLater();
     });
 }
 
 void ShellCorona::unload()
 {
     if (m_shell.isEmpty()) {
         return;
     }
 
     // Make double sure that we do not access the members while we are in the process of deleting them.
     // Most notably destroying PanelViews may issue signals that in turn cause iteration upon the m_panelViews.
     // First clear the members, then delete them.
     auto desktopViewForScreen = m_desktopViewForScreen;
     m_desktopViewForScreen.clear();
     qDeleteAll(desktopViewForScreen);
     auto panelViews = m_panelViews;
     m_panelViews.clear();
     qDeleteAll(panelViews);
 
     m_waitingPanels.clear();
     m_activityContainmentPlugins.clear();
 
     while (!containments().isEmpty()) {
         // Some applets react to destroyedChanged rather just destroyed,
         // give them  the possibility to react
         // deleting a containment will remove it from the list due to QObject::destroyed connect in Corona
         // this form doesn't crash, while qDeleteAll(containments()) does
         // And is more correct anyways to use destroy()
         containments().constFirst()->destroy();
     }
 }
 
 KSharedConfig::Ptr ShellCorona::applicationConfig()
 {
     return KSharedConfig::openConfig();
 }
 
 void ShellCorona::requestApplicationConfigSync()
 {
     m_appConfigSyncTimer.start();
 }
 
 void ShellCorona::slotCyclePanelFocus()
 {
     if (m_panelViews.empty()) {
         return;
     }
 
     PanelView *activePanel = qobject_cast<PanelView *>(qGuiApp->focusWindow());
     if (!activePanel) {
         // Activate the first panel and save the previous window
         activePanel = m_panelViews.begin().value();
     }
 
     if (activePanel->containment()->status() != Plasma::Types::AcceptingInputStatus) {
         activePanel->containment()->setStatus(Plasma::Types::AcceptingInputStatus);
     } else {
         // Cancel focus on the current panel
         // Block focus on the panel if it's not the last panel
         if (activePanel != m_panelViews.last()) {
             m_blockRestorePreviousWindow = true;
         }
         activePanel->containment()->setStatus(Plasma::Types::PassiveStatus);
         m_blockRestorePreviousWindow = false;
 
         // More than one panel and the current panel is not the last panel,
         // move focus to next panel.
         if (activePanel != m_panelViews.last()) {
             auto viewIt = std::find_if(m_panelViews.cbegin(), m_panelViews.cend(), [activePanel](const PanelView *panel) {
                 return activePanel == panel;
             });
 
             if (viewIt == m_panelViews.cend()) {
                 return;
             }
 
             // Skip destroyed panels
             viewIt = std::next(viewIt);
             while (viewIt != m_panelViews.cend()) {
                 if (!viewIt.value()->containment()->destroyed()) {
                     break;
                 }
 
                 viewIt = std::next(viewIt);
             }
 
             if (viewIt != m_panelViews.cend()) {
                 viewIt.value()->containment()->setStatus(Plasma::Types::AcceptingInputStatus);
             } else {
                 restorePreviousWindow();
             }
         }
     }
 }
 
 void ShellCorona::loadDefaultLayout()
 {
 #if USE_SCRIPTING
     // pre-startup scripts
     QString script = m_lookAndFeelPackage.filePath("layouts", shell() + "-prelayout.js");
     if (!script.isEmpty()) {
         QFile file(script);
         if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
             QString code = file.readAll();
             qCDebug(PLASMASHELL) << "evaluating pre-startup script:" << script;
 
             WorkspaceScripting::ScriptEngine scriptEngine(this);
 
             connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [](const QString &msg) {
                 qCWarning(PLASMASHELL) << msg;
             });
             connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [](const QString &msg) {
                 qCDebug(PLASMASHELL) << msg;
             });
             if (!scriptEngine.evaluateScript(code, script)) {
                 qCWarning(PLASMASHELL) << "failed to initialize layout properly:" << script;
             }
         }
     }
 
     // NOTE: Is important the containments already exist for each screen
     // at the moment of the script execution,the same loop in :load()
     // is executed too late
     const auto screens = m_screenPool->screenOrder();
     for (QScreen *screen : screens) {
         addOutput(screen);
     }
 
     script = m_testModeLayout;
 
     if (script.isEmpty()) {
         script = m_lookAndFeelPackage.filePath("layouts", shell() + "-layout.js");
     }
     if (script.isEmpty()) {
         script = kPackage().filePath("defaultlayout");
     }
 
     QFile file(script);
     if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
         QString code = file.readAll();
         qCDebug(PLASMASHELL) << "evaluating startup script:" << script;
 
         // We need to know which activities are here in order for
         // the scripting engine to work. activityAdded does not mind
         // if we pass it the same activity multiple times
         const QStringList existingActivities = m_activityController->activities();
         for (const QString &id : existingActivities) {
             activityAdded(id);
         }
 
         WorkspaceScripting::ScriptEngine scriptEngine(this);
 
         connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [](const QString &msg) {
             qCWarning(PLASMASHELL) << msg;
         });
         connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [](const QString &msg) {
             qCDebug(PLASMASHELL) << msg;
         });
         if (!scriptEngine.evaluateScript(code, script)) {
             qCWarning(PLASMASHELL) << "failed to initialize layout properly:" << script;
         }
     }
 #endif
     Q_EMIT startupCompleted();
 }
 
 void ShellCorona::processUpdateScripts()
 {
 #if USE_SCRIPTING
     const QStringList scripts = WorkspaceScripting::ScriptEngine::pendingUpdateScripts(this);
     if (scripts.isEmpty()) {
         return;
     }
 
     WorkspaceScripting::ScriptEngine scriptEngine(this);
 
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [](const QString &msg) {
         qCWarning(PLASMASHELL) << msg;
     });
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [](const QString &msg) {
         qCDebug(PLASMASHELL) << msg;
     });
 
     for (const QString &script : scripts) {
         QFile file(script);
         if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
             QString code = file.readAll();
             scriptEngine.evaluateScript(code);
         } else {
             qCWarning(PLASMASHELL) << "Unable to open the script file" << script << "for reading";
         }
     }
 #endif
 }
 
 int ShellCorona::numScreens() const
 {
     return m_screenPool->screenOrder().count();
 }
 
 QRect ShellCorona::screenGeometry(int id) const
 {
     QScreen *screen = m_screenPool->screenForId(id);
     if (!screen) {
         qWarning() << "requesting unexisting screen geometry" << id;
         screen = m_screenPool->primaryScreen();
         return screen ? screen->geometry() : QRect();
     }
     return screen->geometry();
 }
 
 QRegion ShellCorona::availableScreenRegion(int id) const
 {
     return m_strutManager->availableScreenRegion(id);
 }
 
 QRegion ShellCorona::_availableScreenRegion(int id) const
 {
     QScreen *screen = m_screenPool->screenForId(id);
     if (!screen) {
         // each screen should have a view
         qWarning() << "requesting unexisting screen region" << id;
         screen = m_screenPool->primaryScreen();
         return screen ? screen->availableGeometry() : QRegion();
     }
 
     return std::accumulate(m_panelViews.cbegin(), m_panelViews.cend(), QRegion(screen->geometry()), [screen](const QRegion &a, const PanelView *v) {
         if (v->isVisible() && screen == v->screen() && v->visibilityMode() != PanelView::AutoHide) {
             // if the panel is being moved around, we still want to calculate it from the edge
             return a - v->geometryByDistance(0);
         }
         return a;
     });
 }
 
 QRect ShellCorona::availableScreenRect(int id) const
 {
     return m_strutManager->availableScreenRect(id);
 }
 
 QRect ShellCorona::_availableScreenRect(int id) const
 {
     QScreen *screen = m_screenPool->screenForId(id);
     if (!screen) {
         // each screen should have a view
         qWarning() << "requesting unexisting screen available rect" << id;
         screen = m_screenPool->primaryScreen();
         return screen ? screen->availableGeometry() : QRect();
     }
 
     QRect r = screen->geometry();
     int topThickness, leftThickness, rightThickness, bottomThickness;
     topThickness = leftThickness = rightThickness = bottomThickness = 0;
     for (PanelView *v : m_panelViews) {
         if (v->isVisible() && v->screen() == screen && v->visibilityMode() != PanelView::AutoHide) {
             switch (v->location()) {
             case Plasma::Types::LeftEdge:
                 leftThickness = qMax(leftThickness, v->totalThickness());
                 break;
             case Plasma::Types::RightEdge:
                 rightThickness = qMax(rightThickness, v->totalThickness());
                 break;
             case Plasma::Types::TopEdge:
                 topThickness = qMax(topThickness, v->totalThickness());
                 break;
             case Plasma::Types::BottomEdge:
                 bottomThickness = qMax(bottomThickness, v->totalThickness());
             default:
                 break;
             }
         }
     }
     r.setLeft(r.left() + leftThickness);
     r.setRight(r.right() - rightThickness);
     r.setTop(r.top() + topThickness);
     r.setBottom(r.bottom() - bottomThickness);
     return r;
 }
 
 QStringList ShellCorona::availableActivities() const
 {
     return m_activityContainmentPlugins.keys();
 }
 
 void ShellCorona::removeDesktop(DesktopView *desktopView)
 {
     const int screenId = desktopView->containment()->lastScreen();
 
     auto result = std::find_if(m_desktopViewForScreen.begin(), m_desktopViewForScreen.end(), [desktopView](DesktopView *v) {
         return v == desktopView;
     });
 
     if (result != m_desktopViewForScreen.end()) {
         m_desktopViewForScreen.erase(result);
     }
 
     QMutableMapIterator<const Plasma::Containment *, PanelView *> it(m_panelViews);
 
     while (it.hasNext()) {
         it.next();
         PanelView *panelView = it.value();
 
         if (panelView->containment()->lastScreen() == screenId) {
             m_waitingPanels << panelView->containment();
             it.remove();
             panelView->destroy();
             panelView->containment()->reactToScreenChange();
         }
     }
 
     desktopView->destroy();
     desktopView->containment()->reactToScreenChange();
 }
 
 PanelView *ShellCorona::panelView(Plasma::Containment *containment) const
 {
     return m_panelViews.value(containment);
 }
 
 void ShellCorona::savePreviousWindow()
 {
 #if HAVE_X11
     if (KWindowSystem::isPlatformX11() && m_previousWId == 0) {
         m_previousWId = KX11Extras::activeWindow();
     }
 #endif
     if (m_waylandWindowManagement && !m_previousPlasmaWindow) {
         m_previousPlasmaWindow = m_waylandWindowManagement->activeWindow();
     }
 }
 
 void ShellCorona::restorePreviousWindow()
 {
     if (m_blockRestorePreviousWindow) {
         return;
     }
 
 #if HAVE_X11
     if (KWindowSystem::isPlatformX11() && m_previousWId) {
         KX11Extras::forceActiveWindow(m_previousWId);
     }
 #endif
     if (m_previousPlasmaWindow) {
         m_previousPlasmaWindow->requestActivate();
     }
 
     clearPreviousWindow();
 }
 
 void ShellCorona::clearPreviousWindow()
 {
     m_previousWId = 0;
     m_previousPlasmaWindow = nullptr;
 }
 
 ///// SLOTS
 
 DesktopView *ShellCorona::desktopForScreen(QScreen *screen) const
 {
     if (!screen) {
         return nullptr;
     }
     if (auto *v = m_desktopViewForScreen.value(m_screenPool->idForScreen(screen))) {
         return v;
     }
 
     return nullptr;
 }
 
 void ShellCorona::handleScreenRemoved(QScreen *screen)
 {
     if (DesktopView *v = desktopForScreen(screen)) {
         // Checking with m_screenPool->screenOrder().count() - 1 because when ScreenPool emits screenRemoved, the screen has not yet been removed from
         // ScreenPool::screenORder()
         if (v->containment()->lastScreen() < 0 || v->containment()->lastScreen() >= m_screenPool->screenOrder().count() - 1) {
             removeDesktop(v);
         }
         // Else do nothing, the view will be recycled
     }
 
     // The real screen index that has been removed is *always* the highest one, because we enforce order.
     // There can't be a containment that has for instance screen 0 and another 2 but nothing on 1
     // It's size() - 1 because at this point screenpool didn't remove it from screenOrder() yet
     Q_EMIT screenRemoved(m_screenPool->screenOrder().size() - 1);
 #ifndef NDEBUG
     m_invariantsTimer.start();
 #endif
 }
 
 void ShellCorona::handleScreenOrderChanged(QList<QScreen *> screens)
 {
     m_screenReorderInProgress = true;
     // First: reassign existing views if applicable, otherwise remove them
     auto allDesktops = m_desktopViewForScreen.values();
     m_desktopViewForScreen.clear();
     for (auto *v : allDesktops) {
         const int screenNumber = v->containment()->lastScreen();
         if (screenNumber >= 0 && screenNumber < screens.count()) {
             v->setScreenToFollow(screens[screenNumber]);
             v->setVisible(true);
             m_desktopViewForScreen[screenNumber] = v;
         } else {
             removeDesktop(v);
         }
     }
 
     // Doing it here as m_panelViews might already have been modified by the step before
     auto allPanels = m_panelViews.values();
     m_panelViews.clear();
     for (auto *v : allPanels) {
         const int screenNumber = v->containment()->lastScreen();
         if (screenNumber >= 0 && screenNumber < screens.count()) {
             v->setScreenToFollow(screens[screenNumber]);
             v->setVisible(true);
             m_panelViews[v->containment()] = v;
         } else {
             v->destroy();
             v->containment()->reactToScreenChange();
         }
     }
 
     // Second: add everything that wasn't there yet
     for (auto *s : screens) {
         if (!desktopForScreen(s)) {
             addOutput(s);
         }
     }
 
     m_screenReorderInProgress = false;
     Q_EMIT screenOrderChanged(screens);
 
     Q_ASSERT(m_desktopViewForScreen.count() == screens.count());
     for (int i = 0; i < screens.count(); ++i) {
         Q_EMIT screenGeometryChanged(i);
     }
     Q_EMIT availableScreenRectChanged();
 
     CHECK_SCREEN_INVARIANTS
 }
 
 void ShellCorona::addOutput(QScreen *screen)
 {
     Q_ASSERT(screen);
 
     if (desktopForScreen(screen)) {
         Q_EMIT screenAdded(m_screenPool->idForScreen(screen));
         return;
     }
     Q_ASSERT(!screen->geometry().isNull());
 #ifndef NDEBUG
     connect(screen, &QScreen::geometryChanged, &m_invariantsTimer, static_cast<void (QTimer::*)()>(&QTimer::start), Qt::UniqueConnection);
 #endif
     int insertPosition = m_screenPool->idForScreen(screen);
     Q_ASSERT(insertPosition >= 0);
 
     DesktopView *view = new DesktopView(this, screen);
 
     if (view->rendererInterface()->graphicsApi() != QSGRendererInterface::Software) {
         connect(view, &QQuickWindow::sceneGraphError, this, &ShellCorona::glInitializationFailed);
     }
     connect(view, &DesktopView::geometryChanged, this, [=]() {
         const int id = m_screenPool->idForScreen(view->screen());
         if (id >= 0 && !m_screenReorderInProgress) {
             Q_EMIT screenGeometryChanged(id);
             Q_EMIT availableScreenRectChanged();
         }
     });
 
     Plasma::Containment *containment = createContainmentForActivity(m_activityController->currentActivity(), insertPosition);
     Q_ASSERT(containment);
 
     QAction *removeAction = containment->actions()->action(QStringLiteral("remove"));
     if (removeAction) {
         removeAction->deleteLater();
     }
 
     connect(containment, &Plasma::Containment::uiReadyChanged, this, &ShellCorona::checkAllDesktopsUiReady);
 
     m_desktopViewForScreen[insertPosition] = view;
     view->setContainment(containment);
     view->show();
 
     Q_ASSERT(screen == view->screen());
 
     // need to specifically call the reactToScreenChange, since when the screen is shown it's not yet
     // in the list. We still don't want to have an invisible view added.
     containment->reactToScreenChange();
 
     // were there any panels for this screen before it popped up?
     if (!m_waitingPanels.isEmpty()) {
         m_waitingPanelsTimer.start();
     }
 
     if (!m_screenReorderInProgress) {
         Q_EMIT availableScreenRectChanged();
     }
     Q_EMIT screenAdded(m_screenPool->idForScreen(screen));
 #ifndef NDEBUG
     m_invariantsTimer.start();
 #endif
 }
 
 void ShellCorona::checkAllDesktopsUiReady(bool ready)
 {
     if (!ready)
         return;
     for (auto v : qAsConst(m_desktopViewForScreen)) {
         if (!v->containment()->isUiReady())
             return;
 
         qCDebug(PLASMASHELL) << "Plasma Shell startup completed";
         QDBusMessage ksplashProgressMessage = QDBusMessage::createMethodCall(QStringLiteral("org.kde.KSplash"),
                                                                              QStringLiteral("/KSplash"),
                                                                              QStringLiteral("org.kde.KSplash"),
                                                                              QStringLiteral("setStage"));
         ksplashProgressMessage.setArguments(QList<QVariant>() << QStringLiteral("desktop"));
         QDBusConnection::sessionBus().asyncCall(ksplashProgressMessage);
     }
 }
 
 Plasma::Containment *ShellCorona::createContainmentForActivity(const QString &activity, int screenNum)
 {
     Plasma::Containment *lastScreenCont = nullptr;
     Plasma::Containment *orphanCont = nullptr;
     const auto containments = containmentsForActivity(activity);
     for (Plasma::Containment *cont : containments) {
         // in the case of a corrupt config file
         // with multiple containments with same lastScreen
         // Always prefer a containment that already has a screen, if any
         // This piece of code always fails at startup, used only later in plasma runtime
         if (cont->destroyed()) {
             continue;
         }
         if (cont->screen() == screenNum) {
             // Always prefer a containment that already has a view
             return cont;
         } else if (cont->lastScreen() == screenNum) {
             // Otherwise base off lastScreen
             lastScreenCont = cont;
         } else if (cont->lastScreen() < 0) {
             // Last resort, if we found a desktop for the activity that for whatever reason had screen -1 (very unlikely) recycle it
             orphanCont = cont;
         }
     }
     if (lastScreenCont) {
         return lastScreenCont;
     } else if (orphanCont) {
         return orphanCont;
     }
 
     QString plugin = m_activityContainmentPlugins.value(activity);
 
     if (plugin.isEmpty()) {
         plugin = defaultContainmentPlugin();
     }
 
     Plasma::Containment *containment = containmentForScreen(screenNum, activity, plugin, QVariantList());
     Q_ASSERT(containment);
 
     return containment;
 }
 
 void ShellCorona::createWaitingPanels()
 {
     QList<Plasma::Containment *> stillWaitingPanels;
 
     for (Plasma::Containment *cont : qAsConst(m_waitingPanels)) {
         // ignore non existing (yet?) screens
         int requestedScreen = cont->lastScreen();
         if (requestedScreen < 0) {
             requestedScreen = 0;
         }
 
         QScreen *screen = m_screenPool->screenForId(requestedScreen);
         DesktopView *desktopView = desktopForScreen(screen);
         if (!screen || !desktopView) {
             stillWaitingPanels << cont;
             continue;
         }
 
         // TODO: does a similar check make sense?
         // Q_ASSERT(qBound(0, requestedScreen, m_screenPool->count() - 1) == requestedScreen);
         PanelView *panel = new PanelView(this, screen);
         if (panel->rendererInterface()->graphicsApi() != QSGRendererInterface::Software) {
             connect(panel, &QQuickWindow::sceneGraphError, this, &ShellCorona::glInitializationFailed);
         }
         auto rectNotify = [this]() {
             if (!m_screenReorderInProgress) {
                 Q_EMIT availableScreenRectChanged();
             }
         };
 
         connect(panel, &QWindow::visibleChanged, this, rectNotify);
         connect(panel, &QWindow::screenChanged, this, rectNotify);
         connect(panel, &PanelView::locationChanged, this, rectNotify);
         connect(panel, &PanelView::visibilityModeChanged, this, rectNotify);
         connect(panel, &PanelView::thicknessChanged, this, rectNotify);
 
         m_panelViews[cont] = panel;
         panel->setContainment(cont);
         cont->reactToScreenChange();
 
         connect(cont, &QObject::destroyed, this, &ShellCorona::panelContainmentDestroyed);
     }
     m_waitingPanels = stillWaitingPanels;
 
     if (!m_screenReorderInProgress) {
         Q_EMIT availableScreenRectChanged();
     }
 }
 
 void ShellCorona::panelContainmentDestroyed(QObject *cont)
 {
     auto view = m_panelViews.take(static_cast<Plasma::Containment *>(cont));
     delete view;
     // don't make things relayout when the application is quitting
     // NOTE: qApp->closingDown() is still false here
     if (!m_closingDown && !m_screenReorderInProgress) {
         Q_EMIT availableScreenRectChanged();
     }
 }
 
 void ShellCorona::handleContainmentAdded(Plasma::Containment *c)
 {
     connect(c, &Plasma::Containment::showAddWidgetsInterface, this, &ShellCorona::toggleWidgetExplorer);
     connect(c, &Plasma::Containment::appletAlternativesRequested, this, &ShellCorona::showAlternativesForApplet);
     connect(c, &Plasma::Containment::appletCreated, this, [this, c](Plasma::Applet *applet) {
         executeSetupPlasmoidScript(c, applet);
     });
 
     // When a containment is removed, remove the thumbnail as well
     connect(c, &Plasma::Containment::destroyedChanged, this, [this, c](bool destroyed) {
         if (!destroyed) {
             return;
         }
         const QString snapshotPath = containmentPreviewPath(c);
         if (!snapshotPath.isEmpty()) {
             QFile f(snapshotPath);
             f.remove();
         }
     });
 }
 
 void ShellCorona::executeSetupPlasmoidScript(Plasma::Containment *containment, Plasma::Applet *applet)
 {
 #if USE_SCRIPTING
     if (!applet->pluginMetaData().isValid() || !containment->pluginMetaData().isValid()) {
         return;
     }
 
     const QString scriptFile = m_lookAndFeelPackage.filePath("plasmoidsetupscripts", applet->pluginMetaData().pluginId() + ".js");
 
     if (scriptFile.isEmpty()) {
         return;
     }
 
     WorkspaceScripting::ScriptEngine scriptEngine(this);
 
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [](const QString &msg) {
         qCWarning(PLASMASHELL) << msg;
     });
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [](const QString &msg) {
         qCDebug(PLASMASHELL) << msg;
     });
 
     QFile file(scriptFile);
     if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
         qCWarning(PLASMASHELL) << "Unable to load script file:" << scriptFile;
         return;
     }
 
     QString script = file.readAll();
     if (script.isEmpty()) {
         // qCDebug(PLASMASHELL) << "script is empty";
         return;
     }
 
     scriptEngine.globalObject().setProperty(QStringLiteral("applet"), scriptEngine.wrap(applet));
     scriptEngine.globalObject().setProperty(QStringLiteral("containment"), scriptEngine.wrap(containment));
     scriptEngine.evaluateScript(script, scriptFile);
 #endif
 }
 
 void ShellCorona::toggleWidgetExplorer()
 {
     // FIXME: This does not work on wayland
     const QPoint cursorPos = QCursor::pos();
     for (DesktopView *view : qAsConst(m_desktopViewForScreen)) {
         if (view->screen()->geometry().contains(cursorPos)) {
             // The view QML has to provide something to display the widget explorer
             view->rootObject()->metaObject()->invokeMethod(view->rootObject(), "toggleWidgetExplorer", Q_ARG(QVariant, QVariant::fromValue(sender())));
             return;
         }
     }
 }
 
 void ShellCorona::toggleActivityManager()
 {
     const QPoint cursorPos = QCursor::pos();
     for (DesktopView *view : qAsConst(m_desktopViewForScreen)) {
         if (view->screen()->geometry().contains(cursorPos)) {
             // The view QML has to provide something to display the activity explorer
             view->rootObject()->metaObject()->invokeMethod(view->rootObject(), "toggleActivityManager", Qt::QueuedConnection);
             return;
         }
     }
 }
 
 void ShellCorona::syncAppConfig()
 {
     applicationConfig()->sync();
 }
 
 void ShellCorona::setDashboardShown(bool show)
 {
     KWindowSystem::setShowingDesktop(show);
 }
 
 void ShellCorona::toggleDashboard()
 {
     setDashboardShown(!KWindowSystem::showingDesktop());
 }
 
 void ShellCorona::handleColorRequestedFromDBus(const QDBusMessage &msg)
 {
     Q_ASSERT(!m_accentColorFromWallpaperEnabled);
     Q_ASSERT(!m_fakeColorRequestConn);
     msg.setDelayedReply(true);
 
     m_fakeColorRequestConn = connect(this, &ShellCorona::colorChanged, this, [this, msg] {
         disconnect(m_fakeColorRequestConn);
         const QRgb color = desktopForScreen(m_screenPool->primaryScreen())->accentColor().rgba();
 
         m_accentColorFromWallpaperEnabled = false;
         Q_EMIT accentColorFromWallpaperEnabledChanged();
 
         const QDBusMessage reply = msg.createReply(color);
         QDBusConnection::sessionBus().send(reply);
     });
 
     m_accentColorFromWallpaperEnabled = true;
     Q_EMIT accentColorFromWallpaperEnabledChanged();
 }
 
 QRgb ShellCorona::color() const
 {
     // Colors from wallpaper are not generated when they are turned off in the settings.
     // To return a color we need to fake that the setting is on, and then take the color,
     // turn off the setting again(or the color engine will keep runnig) and return the color.
 
     // Note that whenever a color is generated, it is also set as accent color. When we fake the
     // setting, we should not apply the generated color. The color applying kded module take care
     // of that by checking for the original state of the setting, so it is important that the check
     // may not be removed accidentally.
 
     static QRgb defaultColor = QColor(Qt::transparent).rgba();
     auto const primaryDesktopViewExists = desktopForScreen(m_screenPool->primaryScreen());
     if (!primaryDesktopViewExists) {
         return defaultColor;
     }
 
     if (m_accentColorFromWallpaperEnabled) {
         return desktopForScreen(m_screenPool->primaryScreen())->accentColor().rgba();
     } else if (calledFromDBus()) {
         if (m_fakeColorRequestConn) {
             disconnect(m_fakeColorRequestConn);
         }
         const_cast<ShellCorona *>(this)->handleColorRequestedFromDBus(message());
     }
 
     return defaultColor;
 }
 
 QString ShellCorona::evaluateScript(const QString &script)
 {
 #if USE_SCRIPTING
     if (calledFromDBus()) {
         if (immutability() == Plasma::Types::SystemImmutable) {
             sendErrorReply(QDBusError::Failed, QStringLiteral("Widgets are locked"));
             return QString();
         } else if (!KAuthorized::authorize(QStringLiteral("plasma-desktop/scripting_console"))) {
             sendErrorReply(QDBusError::Failed, QStringLiteral("Administrative policies prevent script execution"));
             return QString();
         }
     }
 
     WorkspaceScripting::ScriptEngine scriptEngine(this);
     QString buffer;
     QTextStream bufferStream(&buffer, QIODevice::WriteOnly | QIODevice::Text);
 
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [&bufferStream](const QString &msg) {
         qCWarning(PLASMASHELL) << msg;
         bufferStream << msg;
     });
     connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [&bufferStream](const QString &msg) {
         qCDebug(PLASMASHELL) << msg;
         bufferStream << msg;
     });
 
     scriptEngine.evaluateScript(script);
 
     bufferStream.flush();
 
     if (calledFromDBus() && !scriptEngine.errorString().isEmpty()) {
         sendErrorReply(QDBusError::Failed, scriptEngine.errorString());
         return QString();
     }
 
     return buffer;
 #else
     return QString();
 #endif
 }
 
 void ShellCorona::checkActivities()
 {
     KActivities::Controller::ServiceStatus status = m_activityController->serviceStatus();
     // qCDebug(PLASMASHELL) << "$%$%$#%$%$%Status:" << status;
     if (status != KActivities::Controller::Running) {
         // panic and give up - better than causing a mess
         qCDebug(PLASMASHELL) << "ShellCorona::checkActivities is called whilst activity daemon is still connecting";
         return;
     }
 
     const QStringList existingActivities = m_activityController->activities();
     for (const QString &id : existingActivities) {
         activityAdded(id);
     }
 
     // Checking whether the result we got is valid. Just in case.
     Q_ASSERT_X(!existingActivities.isEmpty(), "isEmpty", "There are no activities, and the service is running");
     Q_ASSERT_X(existingActivities[0] != QLatin1String("00000000-0000-0000-0000-000000000000"), "null uuid", "There is a nulluuid activity present");
 
     // Killing the unassigned containments
     const auto conts = containments();
     for (Plasma::Containment *cont : conts) {
         if ((cont->containmentType() == Plasma::Types::DesktopContainment || cont->containmentType() == Plasma::Types::CustomContainment)
             && !existingActivities.contains(cont->activity()) && m_activityController->currentActivity() != cont->activity()) {
             cont->destroy();
         }
     }
 }
 
 void ShellCorona::currentActivityChanged(const QString &newActivity)
 {
     //     qCDebug(PLASMASHELL) << "Activity changed:" << newActivity;
 
     for (auto it = m_desktopViewForScreen.constBegin(); it != m_desktopViewForScreen.constEnd(); ++it) {
         Plasma::Containment *c = createContainmentForActivity(newActivity, it.key());
 
         QAction *removeAction = c->actions()->action(QStringLiteral("remove"));
         if (removeAction) {
             removeAction->deleteLater();
         }
         (*it)->setContainment(c);
     }
 }
 
 void ShellCorona::activityAdded(const QString &id)
 {
     // TODO more sanity checks
     if (m_activityContainmentPlugins.contains(id)) {
         qCWarning(PLASMASHELL) << "Activity added twice" << id;
         return;
     }
 
     m_activityContainmentPlugins.insert(id, defaultContainmentPlugin());
 }
 
 void ShellCorona::activityRemoved(const QString &id)
 {
     m_activityContainmentPlugins.remove(id);
     const QList<Plasma::Containment *> containments = containmentsForActivity(id);
     for (auto cont : containments) {
         cont->destroy();
     }
 }
 
 void ShellCorona::insertActivity(const QString &id, const QString &plugin)
 {
     activityAdded(id);
 
     // TODO: This needs to go away!
     // The containment creation API does not know when we have a
     // new activity to create a containment for, we need to pretend
     // that the current activity has been changed
     QFuture<bool> currentActivity = m_activityController->setCurrentActivity(id);
     awaitFuture(currentActivity);
 
     if (!currentActivity.result()) {
         qCDebug(PLASMASHELL) << "Failed to create and switch to the activity";
         return;
     }
 
     while (m_activityController->currentActivity() != id) {
         QCoreApplication::processEvents();
     }
 
     m_activityContainmentPlugins.insert(id, plugin);
     for (auto it = m_desktopViewForScreen.constBegin(); it != m_desktopViewForScreen.constEnd(); ++it) {
         Plasma::Containment *c = createContainmentForActivity(id, (*it)->containment()->screen());
         if (c) {
             c->config().writeEntry("lastScreen", (*it)->containment()->screen());
         }
     }
 }
 
 Plasma::Containment *ShellCorona::setContainmentTypeForScreen(int screen, const QString &plugin)
 {
     // search but not create
     Plasma::Containment *oldContainment = containmentForScreen(screen, m_activityController->currentActivity(), QString());
 
     // no valid containment in given screen, giving up
     if (!oldContainment) {
         return nullptr;
     }
 
     if (plugin.isEmpty()) {
         return oldContainment;
     }
 
     auto viewIt = std::find_if(m_desktopViewForScreen.cbegin(), m_desktopViewForScreen.cend(), [oldContainment](const DesktopView *v) {
         return v->containment() == oldContainment;
     });
 
     // no view? give up
     if (viewIt == m_desktopViewForScreen.cend()) {
         return oldContainment;
     }
 
     // create a new containment
     Plasma::Containment *newContainment = createContainmentDelayed(plugin);
 
     // if creation failed or invalid plugin, give up
     if (!newContainment) {
         return oldContainment;
     } else if (!newContainment->pluginMetaData().isValid()) {
         newContainment->deleteLater();
         return oldContainment;
     }
 
     // At this point we have a valid new containment from plugin and a view
     // copy all configuration groups (excluded applets)
     KConfigGroup oldCg = oldContainment->config();
 
     // newCg *HAS* to be from a KSharedConfig, because some KConfigSkeleton will need to be synced
     // this makes the configscheme work
     KConfigGroup newCg(KSharedConfig::openConfig(oldCg.config()->name()), "Containments");
     newCg = KConfigGroup(&newCg, QString::number(newContainment->id()));
 
     // this makes containment->config() work, is a separate thing from its configscheme
     KConfigGroup newCg2 = newContainment->config();
 
     const auto groups = oldCg.groupList();
     for (const QString &group : groups) {
         if (group != QLatin1String("Applets")) {
             KConfigGroup subGroup(&oldCg, group);
             KConfigGroup newSubGroup(&newCg, group);
             subGroup.copyTo(&newSubGroup);
 
             KConfigGroup newSubGroup2(&newCg2, group);
             subGroup.copyTo(&newSubGroup2);
         }
     }
 
     newContainment->init();
     newCg.writeEntry("activityId", oldContainment->activity());
     newCg.writeEntry("wallpaperplugin", oldContainment->wallpaper());
     newContainment->restore(newCg);
     newContainment->updateConstraints(Plasma::Types::StartupCompletedConstraint);
     newContainment->flushPendingConstraintsEvents();
     Q_EMIT containmentAdded(newContainment);
 
     // Move the applets
     const auto applets = oldContainment->applets();
     for (Plasma::Applet *applet : applets) {
         newContainment->addApplet(applet);
     }
 
     // remove the "remove" action
     QAction *removeAction = newContainment->actions()->action(QStringLiteral("remove"));
     if (removeAction) {
         removeAction->deleteLater();
     }
     (*viewIt)->setContainment(newContainment);
     newContainment->setActivity(oldContainment->activity());
 
     oldContainment->destroy();
 
     // removing the focus from the item that is going to be destroyed
     // fixes a crash
     // delayout the destruction of the old containment fixes another crash
     (*viewIt)->rootObject()->setFocus(true, Qt::MouseFocusReason);
     QTimer::singleShot(2500, oldContainment, &Plasma::Applet::destroy);
 
     // Save now as we now have a screen, so lastScreen will not be -1
     newContainment->save(newCg);
     requestConfigSync();
     Q_EMIT availableScreenRectChanged();
 
     return newContainment;
 }
 
 void ShellCorona::checkAddPanelAction()
 {
     delete m_addPanelAction;
     m_addPanelAction = nullptr;
 
     m_addPanelsMenu.reset(nullptr);
 
     const QList<KPluginMetaData> panelContainmentPlugins = Plasma::PluginLoader::listContainmentsMetaDataOfType(QStringLiteral("Panel"));
 
     auto filter = [](const KPluginMetaData &md) -> bool {
         return !md.rawData().value(QStringLiteral("NoDisplay")).toBool()
             && md.value(QStringLiteral("X-Plasma-ContainmentCategories"), QStringList()).contains(QLatin1String("panel"));
     };
     QList<KPluginMetaData> templates = KPackage::PackageLoader::self()->findPackages(QStringLiteral("Plasma/LayoutTemplate"), QString(), filter);
 
     if (panelContainmentPlugins.count() + templates.count() == 1) {
         m_addPanelAction = new QAction(this);
         connect(m_addPanelAction, &QAction::triggered, this, qOverload<>(&ShellCorona::addPanel));
     } else if (!panelContainmentPlugins.isEmpty()) {
         m_addPanelAction = new QAction(this);
         m_addPanelsMenu.reset(new QMenu);
         m_addPanelAction->setMenu(m_addPanelsMenu.get());
         connect(m_addPanelsMenu.get(), &QMenu::aboutToShow, this, &ShellCorona::populateAddPanelsMenu);
         connect(m_addPanelsMenu.get(), &QMenu::triggered, this, qOverload<QAction *>(&ShellCorona::addPanel));
     }
 
     if (m_addPanelAction) {
         m_addPanelAction->setText(i18n("Add Panel"));
         m_addPanelAction->setIcon(QIcon::fromTheme(QStringLiteral("list-add")));
         actions()->addAction(QStringLiteral("add panel"), m_addPanelAction);
     }
 }
 
 void ShellCorona::populateAddPanelsMenu()
 {
     m_addPanelsMenu->clear();
     const KPluginMetaData emptyInfo;
 
     const QList<KPluginMetaData> panelContainmentPlugins = Plasma::PluginLoader::listContainmentsMetaDataOfType(QStringLiteral("Panel"));
     QMap<QString, QPair<KPluginMetaData, KPluginMetaData>> sorted;
     for (const KPluginMetaData &plugin : panelContainmentPlugins) {
         if (plugin.rawData().value(QStringLiteral("NoDisplay")).toBool()) {
             continue;
         }
         sorted.insert(plugin.name(), qMakePair(plugin, KPluginMetaData()));
     }
 
     auto filter = [](const KPluginMetaData &md) -> bool {
         return !md.rawData().value(QStringLiteral("NoDisplay")).toBool()
             && md.value(QStringLiteral("X-Plasma-ContainmentCategories"), QStringList()).contains(QLatin1String("panel"));
     };
     const QList<KPluginMetaData> templates = KPackage::PackageLoader::self()->findPackages(QStringLiteral("Plasma/LayoutTemplate"), QString(), filter);
     for (const auto &tpl : templates) {
         sorted.insert(tpl.name(), qMakePair(emptyInfo, tpl));
     }
 
     QMapIterator<QString, QPair<KPluginMetaData, KPluginMetaData>> it(sorted);
     KPackage::Package package = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/LayoutTemplate"));
     while (it.hasNext()) {
         it.next();
         QPair<KPluginMetaData, KPluginMetaData> pair = it.value();
         if (pair.first.isValid()) {
             KPluginMetaData plugin = pair.first;
             QAction *action = m_addPanelsMenu->addAction(i18nc("Creates an empty containment (%1 is the containment name)", "Empty %1", plugin.name()));
             if (!plugin.iconName().isEmpty()) {
                 action->setIcon(QIcon::fromTheme(plugin.iconName()));
             }
 
             action->setData(plugin.pluginId());
         } else {
             KPluginMetaData plugin(pair.second);
             package.setPath(plugin.pluginId());
             const QString scriptFile = package.filePath("mainscript");
             if (!scriptFile.isEmpty()) {
                 QAction *action = m_addPanelsMenu->addAction(plugin.name());
                 action->setData(QStringLiteral("plasma-desktop-template:%1").arg(plugin.pluginId()));
             }
         }
     }
 }
 
 void ShellCorona::addPanel()
 {
     const QList<KPluginMetaData> panelPlugins = Plasma::PluginLoader::listContainmentsMetaDataOfType(QStringLiteral("Panel"));
 
     if (!panelPlugins.isEmpty()) {
         addPanel(panelPlugins.first().pluginId());
     }
 }
 
 void ShellCorona::addPanel(QAction *action)
 {
     const QString plugin = action->data().toString();
 #if USE_SCRIPTING
     if (plugin.startsWith(QLatin1String("plasma-desktop-template:"))) {
         WorkspaceScripting::ScriptEngine scriptEngine(this);
 
         connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::printError, this, [](const QString &msg) {
             qCWarning(PLASMASHELL) << msg;
         });
         connect(&scriptEngine, &WorkspaceScripting::ScriptEngine::print, this, [](const QString &msg) {
             qCDebug(PLASMASHELL) << msg;
         });
         const QString templateName = plugin.right(plugin.length() - qstrlen("plasma-desktop-template:"));
 
         scriptEngine.evaluateScript(QStringLiteral("loadTemplate(\"%1\")").arg(templateName));
     } else
 #endif
         if (!plugin.isEmpty()) {
         addPanel(plugin);
     }
 }
 
 Plasma::Containment *ShellCorona::addPanel(const QString &plugin)
 {
     Plasma::Containment *panel = createContainment(plugin);
     if (!panel) {
         return nullptr;
     }
 
     // find out what screen this panel should go on
     QScreen *wantedScreen = qGuiApp->focusWindow() ? qGuiApp->focusWindow()->screen() : m_screenPool->primaryScreen();
 
     QList<Plasma::Types::Location> availableLocations;
     availableLocations << Plasma::Types::BottomEdge << Plasma::Types::TopEdge << Plasma::Types::LeftEdge << Plasma::Types::RightEdge;
 
     for (auto it = m_panelViews.constBegin(); it != m_panelViews.constEnd(); ++it) {
         if ((*it)->screenToFollow() == wantedScreen) {
             availableLocations.removeAll((*it)->location());
         }
     }
 
     Plasma::Types::Location loc;
     if (availableLocations.isEmpty()) {
         loc = Plasma::Types::TopEdge;
     } else {
         loc = availableLocations.first();
     }
 
     panel->setLocation(loc);
     switch (loc) {
     case Plasma::Types::LeftEdge:
     case Plasma::Types::RightEdge:
         panel->setFormFactor(Plasma::Types::Vertical);
         break;
     default:
         panel->setFormFactor(Plasma::Types::Horizontal);
         break;
     }
 
     Q_ASSERT(panel);
     m_waitingPanels << panel;
     // immediately create the panel here so that we have access to the panel view
     createWaitingPanels();
 
     if (m_panelViews.contains(panel)) {
         m_panelViews.value(panel)->setScreenToFollow(wantedScreen);
     }
 
     return panel;
 }
 
 void ShellCorona::swapDesktopScreens(int oldScreen, int newScreen)
 {
     for (auto *containment : containmentsForScreen(oldScreen)) {
         if (containment->containmentType() != Plasma::Types::PanelContainment && containment->containmentType() != Plasma::Types::CustomPanelContainment) {
             setScreenForContainment(containment, newScreen);
         }
     }
 }
 
 void ShellCorona::setScreenForContainment(Plasma::Containment *containment, int newScreenId)
 {
     const int oldScreenId = containment->screen() >= 0 ? containment->screen() : containment->lastScreen();
 
     if (oldScreenId == newScreenId) {
         return;
     }
 
     m_pendingScreenChanges[containment] = newScreenId;
 
     if (containment->containmentType() == Plasma::Types::PanelContainment || containment->containmentType() == Plasma::Types::CustomPanelContainment) {
         // Panel Case
         containment->reactToScreenChange();
         auto *panelView = m_panelViews.value(containment);
         // If newScreen != nullptr we are also assured it won't be redundant
         QScreen *newScreen = m_screenPool->screenForId(newScreenId);
 
         if (panelView) {
             // There was an existing panel view
             if (newScreen) {
                 panelView->setScreenToFollow(newScreen);
             } else {
                 // Not on a connected screen: destroy the panel
                 if (!m_waitingPanels.contains(containment)) {
                     m_waitingPanels << containment;
                 }
                 m_panelViews.remove(containment);
                 panelView->destroy();
             }
         } else {
             // Didn't have a view, createWaitingPanels() will create it if needed
             createWaitingPanels();
         }
 
     } else {
         // Desktop case: a bit more complicate because we may have to swap
         Plasma::Containment *contSwap = containmentForScreen(newScreenId, containment->activity(), "org.kde.plasma.folder");
         Q_ASSERT(contSwap);
 
         // Perform the lastScreen changes
         containment->reactToScreenChange();
         if (contSwap) {
             m_pendingScreenChanges[contSwap] = oldScreenId;
             contSwap->reactToScreenChange();
         }
 
         // If those will be != nullptr we are also assured they won't be redundant
         QScreen *oldScreen = m_screenPool->screenForId(oldScreenId);
         QScreen *newScreen = m_screenPool->screenForId(newScreenId);
 
         // Actually perform a view swap when we are dealing with containments of current activity
         if (contSwap && containment->activity() == m_activityController->currentActivity()) {
             auto *containmentView = m_desktopViewForScreen.value(oldScreenId);
             auto *contSwapView = m_desktopViewForScreen.value(newScreenId);
 
             if (containmentView) {
                 Q_ASSERT(containment == containmentView->containment());
                 m_desktopViewForScreen.remove(oldScreenId);
             }
             if (contSwapView) {
                 Q_ASSERT(contSwap == contSwapView->containment());
                 m_desktopViewForScreen.remove(newScreenId);
             }
 
             if (containmentView) {
                 if (newScreen) {
                     containmentView->setScreenToFollow(newScreen);
                     m_desktopViewForScreen[newScreenId] = containmentView;
                 } else {
                     containmentView->destroy();
                 }
             } else if (newScreen) {
                 addOutput(newScreen);
             }
 
             if (contSwapView) {
                 if (oldScreen) {
                     contSwapView->setScreenToFollow(oldScreen);
                     m_desktopViewForScreen[oldScreenId] = contSwapView;
                 } else {
                     contSwapView->destroy();
                 }
             } else if (oldScreen) {
                 addOutput(oldScreen);
             }
         }
     }
 
     m_pendingScreenChanges.clear();
 }
 
 int ShellCorona::screenForContainment(const Plasma::Containment *containment) const
 {
     // TODO: when we can depend on a new framework, use a p-f method to actuall set lastScreen instead of this?
     // m_pendingScreenChanges controls an explicit user-determined screen change
     if (!m_pendingScreenChanges.isEmpty() && m_pendingScreenChanges.contains(containment)) {
         return m_pendingScreenChanges.value(containment);
     }
 
     // case in which this containment is child of an applet, hello systray :)
     if (Plasma::Applet *parentApplet = qobject_cast<Plasma::Applet *>(containment->parent())) {
         if (Plasma::Containment *cont = parentApplet->containment()) {
             return screenForContainment(cont);
         } else {
             return -1;
         }
     }
 
     // This part is necessary as is the thing which promotes a containment from screen -1 to
     // its final screen which will be saved as lastScreen)
     // if the desktop views already exist, base the decision upon them
     for (auto it = m_desktopViewForScreen.constBegin(), end = m_desktopViewForScreen.constEnd(); it != end; ++it) {
         if (it.value()->containment() == containment && containment->activity() == m_activityController->currentActivity()) {
             return m_screenPool->idForScreen(it.value()->screenToFollow());
         }
     }
 
     // if the panel views already exist, base upon them
     PanelView *view = m_panelViews.value(containment);
     if (view && view->screenToFollow()) {
         return m_screenPool->idForScreen(view->screenToFollow());
     }
 
     return -1;
 }
 
 void ShellCorona::grabContainmentPreview(Plasma::Containment *containment)
 {
     QQuickWindow *viewToGrab = nullptr;
 
     if (containment->containmentType() == Plasma::Types::PanelContainment || containment->containmentType() == Plasma::Types::CustomPanelContainment) {
         // Panel Containment
         auto it = m_panelViews.constBegin();
         while (it != m_panelViews.constEnd()) {
             if (it.key() == containment) {
                 viewToGrab = it.value();
                 break;
             }
             it++;
         }
     } else if (m_desktopViewForScreen.contains(containment->screen())) {
         // Desktop Containment
         viewToGrab = m_desktopViewForScreen[containment->screen()];
     }
 
     if (viewToGrab) {
         QSize size(512, 512);
         size = viewToGrab->size().scaled(size, Qt::KeepAspectRatio);
         auto result = viewToGrab->contentItem()->grabToImage(size);
 
         if (result) {
             connect(result.data(), &QQuickItemGrabResult::ready, this, [this, result, containment]() {
                 // DataLocation is plasmashell, we need just "plasma"
                 QString path = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation);
                 QDir dir(path);
                 path += QStringLiteral("/plasma/containmentpreviews/");
                 dir.mkpath(path);
                 path += QString::number(containment->id()) + QChar('-') + containment->activity() + QStringLiteral(".png");
                 result->saveToFile(path);
                 emit containmentPreviewReady(containment, path);
             });
         }
     }
 }
 
 QString ShellCorona::containmentPreviewPath(Plasma::Containment *containment) const
 {
     const QString path = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + QStringLiteral("/plasma/containmentpreviews/")
         + QString::number(containment->id()) + QChar('-') + containment->activity() + QStringLiteral(".png");
     if (QFile::exists(path)) {
         return path;
     } else {
         return QString();
     }
 }
 
 bool ShellCorona::accentColorFromWallpaperEnabled() const
 {
     return m_accentColorFromWallpaperEnabled;
 }
 
 void ShellCorona::nextActivity()
 {
     m_activityController->nextActivity();
 }
 
 void ShellCorona::previousActivity()
 {
     m_activityController->previousActivity();
 }
 
 void ShellCorona::stopCurrentActivity()
 {
     const QStringList list = m_activityController->activities(KActivities::Info::Running);
     if (list.isEmpty()) {
         return;
     }
 
     m_activityController->stopActivity(m_activityController->currentActivity());
 }
 
 /**
  * @internal
  *
  * The DismissPopupEventFilter class monitors mouse button press events and
  * when needed dismisses the active popup widget.
  *
  * plasmashell uses both QtQuick and QtWidgets under a single roof, QtQuick is
  * used for most of things, while QtWidgets is used for things such as context
  * menus, etc.
  *
  * If user clicks outside a popup window, it's expected that the popup window
  * will be closed.  On X11, it's achieved by establishing both a keyboard grab
  * and a pointer grab. But on Wayland, you can't grab keyboard or pointer. If
  * user clicks a surface of another app, the compositor will dismiss the popup
  * surface.  However, if user clicks some surface of the same application, the
  * popup surface won't be dismissed, it's up to the application to decide
  * whether the popup must be closed. In 99% cases, it must.
  *
  * Qt has some code that dismisses the active popup widget if another window
  * of the same app has been clicked. But, that code works only if the
  * application uses solely Qt widgets. See QTBUG-83972. For plasma it doesn't
  * work, because as we said previously, it uses both Qt Quick and Qt Widgets.
  *
  * Ideally, this bug needs to be fixed upstream, but given that it'll involve
  * major changes in Qt, the chances of it being fixed any time soon are slim.
  *
  * In order to work around the popup dismissal bug, we install an event filter
  * that monitors Qt::MouseButtonPress events. If it happens that user has
  * clicked outside an active popup widget, that popup will be closed. This
  * event filter is not needed on X11!
  */
 class DismissPopupEventFilter : public QObject
 {
     Q_OBJECT
 
 public:
     explicit DismissPopupEventFilter(QObject *parent = nullptr);
 
 protected:
     bool eventFilter(QObject *watched, QEvent *event) override;
 
 private:
     bool m_filterMouseEvents = false;
 };
 
 DismissPopupEventFilter::DismissPopupEventFilter(QObject *parent)
     : QObject(parent)
 {
 }
 
 bool DismissPopupEventFilter::eventFilter(QObject *watched, QEvent *event)
 {
     if (event->type() == QEvent::MouseButtonPress) {
         if (m_filterMouseEvents) {
             // Eat events until all mouse buttons are released.
             return true;
         }
 
         QWidget *popup = QApplication::activePopupWidget();
         if (!popup) {
             return false;
         }
 
         QWindow *window = qobject_cast<QWindow *>(watched);
         if (popup->windowHandle() == window) {
             // The popup window handles mouse events before the widget.
             return false;
         }
 
         QWidget *widget = qobject_cast<QWidget *>(watched);
         if (widget) {
             // Let the popup widget handle the mouse press event.
             return false;
         }
 
         popup->close();
         m_filterMouseEvents = true;
         return true;
 
     } else if (event->type() == QEvent::MouseButtonRelease) {
         if (m_filterMouseEvents) {
             // Eat events until all mouse buttons are released.
             QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
             if (mouseEvent->buttons() == Qt::NoButton) {
                 m_filterMouseEvents = false;
             }
             return true;
         }
     }
 
     return false;
 }
 
 void ShellCorona::setupWaylandIntegration()
 {
     if (!KWindowSystem::isPlatformWayland()) {
         return;
     }
     using namespace KWayland::Client;
     ConnectionThread *connection = ConnectionThread::fromApplication(this);
     if (!connection) {
         return;
     }
     Registry *registry = new Registry(this);
     registry->create(connection);
     connect(registry, &Registry::plasmaShellAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_waylandPlasmaShell = registry->createPlasmaShell(name, version, this);
     });
     connect(registry, &KWayland::Client::Registry::plasmaWindowManagementAnnounced, this, [this, registry](quint32 name, quint32 version) {
         m_waylandWindowManagement = registry->createPlasmaWindowManagement(name, version, this);
     });
     registry->setup();
     connection->roundtrip();
     qApp->installEventFilter(new DismissPopupEventFilter(this));
 }
 
 KWayland::Client::PlasmaShell *ShellCorona::waylandPlasmaShellInterface() const
 {
     return m_waylandPlasmaShell;
 }
 
 ScreenPool *ShellCorona::screenPool() const
 {
     return m_screenPool;
 }
 
 QList<int> ShellCorona::screenIds() const
 {
     QList<int> ids;
     for (int i = 0; i < m_screenPool->screenOrder().size(); ++i) {
         ids.append(i);
     }
     return ids;
 }
 
 QString ShellCorona::defaultContainmentPlugin() const
 {
     QString plugin = m_lnfDefaultsConfig.readEntry("Containment", QString());
     if (plugin.isEmpty()) {
         plugin = m_desktopDefaultsConfig.readEntry("Containment", "org.kde.desktopcontainment");
     }
     return plugin;
 }
 
 void ShellCorona::updateStruts()
 {
     for (PanelView *view : qAsConst(m_panelViews)) {
         view->updateStruts();
     }
 }
 
 void ShellCorona::configurationChanged(const QString &path)
 {
     if (path == m_configPath) {
         m_config->reparseConfiguration();
     }
 }
 
 void ShellCorona::activateLauncherMenu()
 {
     auto message = QDBusMessage::createMethodCall("org.kde.KWin", "/KWin", "org.kde.KWin", "activeOutputName");
     auto watcher = new QDBusPendingCallWatcher(QDBusConnection::sessionBus().asyncCall(message));
     connect(watcher, &QDBusPendingCallWatcher::finished, this, [this, watcher] {
         watcher->deleteLater();
         QDBusReply<QString> reply = *watcher;
         if (reply.isValid()) {
             activateLauncherMenu(reply.value());
         }
     });
 }
 
 void ShellCorona::activateLauncherMenu(const QString &screenName)
 {
     auto activateLauncher = [](Plasma::Applet *applet) -> bool {
         const auto provides = applet->pluginMetaData().value(QStringLiteral("X-Plasma-Provides"), QStringList());
         if (provides.contains(QLatin1String("org.kde.plasma.launchermenu"))) {
             Q_EMIT applet->activated();
             return true;
         }
         return false;
     };
 
     int screenId = m_screenPool->idForName(screenName);
 
     for (auto *cont : containments()) {
         if ((screenId < 0 || cont->screen() == screenId)
             && (cont->containmentType() == Plasma::Types::ContainmentType::PanelContainment
                 || cont->containmentType() == Plasma::Types::ContainmentType::CustomPanelContainment)) {
             const auto applets = cont->applets();
             for (auto applet : applets) {
                 if (activateLauncher(applet)) {
                     return;
                 }
             }
             if (activateLauncher(cont)) {
                 return;
             }
         }
     }
 
     for (auto *cont : containments()) {
         if ((screenId < 0 || cont->screen() == screenId) && cont->containmentType() == Plasma::Types::ContainmentType::DesktopContainment) {
             const auto applets = cont->applets();
             for (auto applet : applets) {
                 if (activateLauncher(applet)) {
                     return;
                 }
             }
             if (activateLauncher(cont)) {
                 return;
             }
         }
     }
 
     if (screenId >= 0) {
         activateLauncherMenu(QString());
     }
 }
 
 void ShellCorona::activateTaskManagerEntry(int index)
 {
     auto activateTaskManagerEntryOnContainment = [](const Plasma::Containment *c, int index) {
         const auto &applets = c->applets();
         for (auto *applet : applets) {
             const auto &provides = applet->pluginMetaData().value(QStringLiteral("X-Plasma-Provides"), QStringList());
             if (provides.contains(QLatin1String("org.kde.plasma.multitasking"))) {
                 if (QQuickItem *appletInterface = applet->property("_plasma_graphicObject").value<QQuickItem *>()) {
                     const auto &childItems = appletInterface->childItems();
                     if (childItems.isEmpty()) {
                         continue;
                     }
 
                     for (QQuickItem *item : childItems) {
                         if (auto *metaObject = item->metaObject()) {
                             // not using QMetaObject::invokeMethod to avoid warnings when calling
                             // this on applets that don't have it or other child items since this
                             // is pretty much trial and error.
 
                             // Also, "var" arguments are treated as QVariant in QMetaObject
                             int methodIndex = metaObject->indexOfMethod("activateTaskAtIndex(QVariant)");
                             if (methodIndex == -1) {
                                 continue;
                             }
 
                             QMetaMethod method = metaObject->method(methodIndex);
                             if (method.invoke(item, Q_ARG(QVariant, index))) {
                                 return true;
                             }
                         }
                     }
                 }
             }
         }
         return false;
     };
 
     // To avoid overly complex configuration, we'll try to get the 90% usecase to work
     // which is activating a task on the task manager on a panel on the primary screen.
 
     for (auto it = m_panelViews.constBegin(), end = m_panelViews.constEnd(); it != end; ++it) {
         if (it.value()->screen() != m_screenPool->primaryScreen()) {
             continue;
         }
         if (activateTaskManagerEntryOnContainment(it.key(), index)) {
             return;
         }
     }
 
     // we didn't find anything on primary, try all the panels
     for (auto it = m_panelViews.constBegin(), end = m_panelViews.constEnd(); it != end; ++it) {
         if (activateTaskManagerEntryOnContainment(it.key(), index)) {
             return;
         }
     }
 }
 
 QString ShellCorona::defaultShell()
 {
     KSharedConfig::Ptr startupConf = KSharedConfig::openConfig(QStringLiteral("plasmashellrc"));
     KConfigGroup startupConfGroup(startupConf, "Shell");
     const QString defaultValue = qEnvironmentVariable("PLASMA_DEFAULT_SHELL", "org.kde.plasma.desktop");
     QString value = startupConfGroup.readEntry("ShellPackage", defaultValue);
 
     // In the global theme an empty value was written, make sure we still return a shell package
     return value.isEmpty() ? defaultValue : value;
 }
 
 void ShellCorona::refreshCurrentShell()
 {
     KSharedConfig::openConfig(QStringLiteral("plasmashellrc"))->reparseConfiguration();
     //  FIXME:   setShell(defaultShell());
     QProcess::startDetached("plasmashell", {"--replace"});
 }
 
 // Desktop corona handler
 
 #include "moc_shellcorona.cpp"
 #include "shellcorona.moc"