add a default fallback to lnf packagestructure

remove lookandfeelaccess from the shell

shell/CMakeLists.txt

@@ -34,7 +34,6 @@ set(scripting_SRC
     scripting/rect.cpp
     scripting/scriptengine.cpp
     scripting/widget.cpp
-    ../lookandfeelaccess/lookandfeelaccess.cpp
 )
 
 set(plasmashell_dbusXML dbus/org.kde.PlasmaShell.xml)

shell/osd.cpp

@@ -29,13 +29,10 @@
 #include <KDeclarative/QmlObject>
 #include <klocalizedstring.h>
 
-#include "../lookandfeelaccess/lookandfeelaccess.h"
-
 Osd::Osd(ShellCorona *corona)
     : QObject(corona)
 {
-    LookAndFeelAccess access;
-    const QString osdPath = access.filePath("osdmainscript");
+    const QString osdPath = corona->lookAndFeelPackage().filePath("osdmainscript");
     if (osdPath.isEmpty()) {
         qWarning() << "Failed to load the OSD script file from" << osdPath;
         return;

shell/packageplugins/lookandfeel/lookandfeel.cpp

@@ -21,6 +21,10 @@
 #include "lookandfeel.h"
 
 #include <KLocalizedString>
+#include <KSharedConfig>
+#include <Plasma/PluginLoader>
+
+#define DEFAULT_LOOKANDFEEL "org.kde.breeze.desktop"
 
 void LookAndFeelPackage::initPackage(Plasma::Package *package)
 {
@@ -75,6 +79,17 @@ void LookAndFeelPackage::initPackage(Plasma::Package *package)
 
 }
 
+void LookAndFeelPackage::pathChanged(Plasma::Package *package)
+{
+    const QString pluginName = package->metadata().pluginName();
+
+    if (!pluginName.isEmpty() && pluginName != DEFAULT_LOOKANDFEEL) {
+        Plasma::Package pkg = Plasma::PluginLoader::self()->loadPackage("Plasma/LookAndFeel");
+        pkg.setPath(DEFAULT_LOOKANDFEEL);
+        package->setFallbackPackage(pkg);
+    }
+}
+
 K_EXPORT_PLASMA_PACKAGE_WITH_JSON(LookAndFeelPackage, "plasma-packagestructure-lookandfeel.json")
 
 #include "lookandfeel.moc"

shell/packageplugins/lookandfeel/lookandfeel.h

@@ -29,6 +29,7 @@ class LookAndFeelPackage : public Plasma::PackageStructure
 public:
     LookAndFeelPackage(QObject*, const QVariantList &) {}
     void initPackage(Plasma::Package *package);
+    void pathChanged(Plasma::Package *package);
 };
 
 #endif

shell/shellcorona.cpp

@@ -59,8 +59,6 @@
 
 #include "plasmashelladaptor.h"
 
-#include "../lookandfeelaccess/lookandfeelaccess.h"
-
 #ifndef NDEBUG
     #define CHECK_SCREEN_INVARIANTS screenInvariants();
 #else
@@ -79,6 +77,11 @@ ShellCorona::ShellCorona(QObject *parent)
       m_screenConfiguration(nullptr),
       m_loading(false)
 {
+    m_lookAndFeelPackage = Plasma::PluginLoader::self()->loadPackage("Plasma/LookAndFeel");
+    KConfigGroup cg(KSharedConfig::openConfig("kdeglobals"), "KDE");
+    const QString packageName = cg.readEntry("LookAndFeelPackage", QString());
+    m_lookAndFeelPackage.setPath(packageName);
+
     m_appConfigSyncTimer.setSingleShot(true);
     m_appConfigSyncTimer.setInterval(s_configSyncDelay);
     connect(&m_appConfigSyncTimer, &QTimer::timeout, this, &ShellCorona::syncAppConfig);
@@ -125,9 +128,8 @@ ShellCorona::ShellCorona(QObject *parent)
     themeName = plasmarc.readEntry(themeNameKey, themeName);
 
     if (themeName.isEmpty()) {
-        LookAndFeelAccess access;
         KConfigGroup lnfCfg = KConfigGroup(KSharedConfig::openConfig(
-                                                access.filePath("defaults")),
+                                                m_lookAndFeelPackage.filePath("defaults")),
                                                 "plasmarc"
                                            );
         lnfCfg = KConfigGroup(&lnfCfg, themeGroupKey);
@@ -183,6 +185,11 @@ ShellCorona::~ShellCorona()
     qDeleteAll(m_panelViews);
 }
 
+Plasma::Package ShellCorona::lookAndFeelPackage()
+{
+    return m_lookAndFeelPackage;
+}
+
 void ShellCorona::setShell(const QString &shell)
 {
     if (m_shell == shell) {

shell/shellcorona.h

@@ -68,6 +68,8 @@ public:
     explicit ShellCorona(QObject *parent = 0);
     ~ShellCorona();
 
+    Plasma::Package lookAndFeelPackage();
+
     /**
      * Where to save global configuration that doesn't have anything to do with the scene (e.g. views)
      */
@@ -201,7 +203,7 @@ private:
     QHash<QString, QHash<int, Plasma::Containment *> > m_desktopContainments;
     QAction *m_addPanelAction;
     QMenu *m_addPanelsMenu;
-    Plasma::Package m_lookNFeelPackage;
+    Plasma::Package m_lookAndFeelPackage;
     QSet<KScreen::Output *> m_redundantOutputs;
     QList<KDeclarative::QmlObject *> m_alternativesObjects;
     KDeclarative::QmlObject *m_interactiveConsole;