Corona::setPackage(QString) uses a Package

* symmetrical api in Corona
* there is no default package

qmlpackages/desktop/contents/loader.qml

@@ -37,28 +37,5 @@ Item {
         id: keyboards
         query: "IS Keyboard"
     }
-
-    // TODO: This is not needed - just for testing purposes
-    Window {
-        id: desktopDialog
-
-        visible: main.loaded
-
-        width: 500
-        height: 500
-
-        Rectangle {
-            anchors.fill: parent
-            color: "white"
-        }
-
-        Text {
-            anchors.fill: parent
-            font.pointSize: 32
-            text: "Desktop"
-            horizontalAlignment: Text.AlignHCenter
-            verticalAlignment:   Text.AlignVCenter
-        }
-    }
 }
 

shellcorona.cpp

@@ -29,6 +29,7 @@
 
 #include <KLocalizedString>
 #include <Plasma/Package>
+#include <Plasma/PluginLoader>
 
 #include "containmentconfigview.h"
 #include "panelview.h"
@@ -95,8 +96,6 @@ ShellCorona::ShellCorona(QObject *parent)
     connect(d->scriptEngine, &WorkspaceScripting::ScriptEngine::print,
             this, &ShellCorona::printScriptMessage);
 
-    checkViews();
-
     //QTimer::singleShot(600, this, SLOT(showWidgetExplorer())); // just for easier debugging
 }
 
@@ -104,14 +103,17 @@ ShellCorona::~ShellCorona()
 {
 }
 
-void ShellCorona::setShell(const QString & shell)
+void ShellCorona::setShell(const QString &shell)
 {
     if (d->shell == shell) return;
 
     unload();
 
-    setPackage(shell);
     d->shell = shell;
+    KConfigGroup config(KSharedConfig::openConfig(), "General");
+    Plasma::Package package = Plasma::PluginLoader::self()->loadPackage("Plasma/Shell");
+    package.setPath(shell);
+    setPackage(package);
 
     load();
 }
@@ -125,6 +127,7 @@ void ShellCorona::load()
 {
     if (d->shell.isEmpty()) return;
 
+    checkViews();
     loadLayout(d->shell);
 
     if (containments().isEmpty()) {
@@ -174,6 +177,7 @@ void ShellCorona::processUpdateScripts()
 
 void ShellCorona::checkScreens(bool signalWhenExists)
 {
+    checkViews();
     // quick sanity check to ensure we have containments for each screen
     int num = numScreens();
     for (int i = 0; i < num; ++i) {
@@ -290,10 +294,14 @@ void ShellCorona::workAreaResized(int screen)
 
 void ShellCorona::checkViews()
 {
+    if (d->shell.isEmpty()) {
+        return;
+    }
     if (d->views.count() == d->desktopWidget->screenCount()) {
         return;
     } else if (d->views.count() < d->desktopWidget->screenCount()) {
         for (int i = d->views.count(); i < d->desktopWidget->screenCount(); ++i) {
+
             View *view = new View(this);
             QSurfaceFormat format;
             view->show();

view.cpp

@@ -38,7 +38,9 @@ View::View(Plasma::Corona *corona, QWindow *parent)
     //Probably is an architectural problem
     QSurfaceFormat format;
     format.setAlphaBufferSize(8);
+
     setFormat(format);
+    setColor(Qt::transparent);
 
     connect(screen(), &QScreen::virtualGeometryChanged,
             this, &View::screenGeometryChanged);