File plasma-new-default-panel.diff of Package kdebase4

Index: plasma/applets/folderview/folderview.h
===================================================================
--- apps/plasma/applets/folderview/folderview.h	(revision 1011425)
+++ apps/plasma/applets/folderview/folderview.h	(working copy)
@@ -29,11 +29,13 @@
 #include <QBasicTimer>
 
 #include <KActionCollection>
+#include <KMessageBox>
 #include <KMimeType>
 
 #include <Solid/Networking>
 
 #include <plasma/containment.h>
+#include "plasma/dataenginemanager.h"
 
 #include "iconview.h"
 
@@ -150,6 +152,8 @@
     void updateScreenRegion();
     void showPreviewConfigDialog();
  
+    void saveDefaultSetup();
+    
 private:
     void addActions(AbstractItemView *view);
     void setupIconView();
@@ -165,6 +169,8 @@
     void showContextMenu(QWidget *widget, const QPoint &pos, const QModelIndexList &indexes);
     void timerEvent(QTimerEvent *event);
 
+    Plasma::Applet *loadDefaultApplet(const QString &pluginName, Plasma::Containment *c);
+    
 private:
     KFileItemDelegate *m_delegate;
     QPointer<KFilePreviewGenerator> m_previewGenerator;
Index: plasma/applets/folderview/folderview.cpp
===================================================================
--- apps/plasma/applets/folderview/folderview.cpp	(revision 1011425)
+++ apps/plasma/applets/folderview/folderview.cpp	(working copy)
@@ -1487,12 +1487,24 @@
 void FolderView::addPanel(const QString &plugin)
 {
     if (corona()) {
+       bool default_panel = false;
+       if (corona()->containments().count()==1) {
+            int answer = KMessageBox::questionYesNoCancel(0, i18n("Do you want a panel with the default widgets or an empty panel?"),
+                                                   i18n("Add Panel"), KGuiItem(i18n("Default Panel")), KGuiItem(i18n("Empty Panel")));
+            if (answer==KMessageBox::Cancel) {
+               return;
+            } else if (answer==KMessageBox::Yes) {
+               default_panel = true;
+            }
+        }
+    
         // make a panel at the top
         Containment* panel = corona()->addContainment(plugin);
         panel->showConfigurationInterface();
 
         panel->setScreen(screen());
 
+    if (!default_panel) {
         QList<Plasma::Location> freeEdges = corona()->freeEdges(screen());
         //kDebug() << freeEdges;
         Plasma::Location destination;
@@ -1542,35 +1554,127 @@
         panel->setMaximumSize(w, h);
         panel->resize(w, h);
     }
+    else {
+        panel->setLocation(Plasma::BottomEdge);
+
+        const int newHeight = 28;
+        panel->resize(QSize((int)panel->size().width(), newHeight));
+        panel->setMinimumSize(QSize((int)panel->minimumSize().width(), newHeight));
+        panel->setMaximumSize(QSize((int)panel->maximumSize().width(), newHeight));
+
+        panel->updateConstraints(Plasma::StartupCompletedConstraint);
+        panel->flushPendingConstraintsEvents();
+
+        // some default applets to get a usable UI
+        Plasma::Applet *applet = loadDefaultApplet("launcher", panel);
+        if (applet) {
+            applet->setGlobalShortcut(KShortcut("Alt+F1"));
+        }
+
+        if (QFile::exists("/usr/share/kde4/services/plasma-applet-showdashboard.desktop"))
+            loadDefaultApplet("showdashboard", panel);
+
+        QVariantList args;
+        if (QFile::exists("/usr/share/applications/MozillaFirefox.desktop")) {
+            args << "/usr/share/applications/MozillaFirefox.desktop";
+            panel->addApplet("icon", args);
+        }
+        else if (QFile::exists("/usr/share/applications/kde4/konqbrowser.desktop")) {
+            args << "/usr/share/applications/kde4/konqbrowser.desktop";
+            panel->addApplet("icon", args);
+        }
+
+        args.clear();
+        if (QFile::exists("/usr/share/applications/kde4/dolphin.desktop")) {
+            args << "/usr/share/applications/kde4/dolphin.desktop";
+            panel->addApplet("icon", args);
+        }
+
+        loadDefaultApplet("notifier", panel);
+        loadDefaultApplet("pager", panel);
+        loadDefaultApplet("tasks", panel);
+        loadDefaultApplet("systemtray", panel);
+
+        Plasma::DataEngineManager *engines = Plasma::DataEngineManager::self();
+        Plasma::DataEngine *power = engines->loadEngine("powermanagement");
+        if (power) {
+            const QStringList &batteries = power->query("Battery")["sources"].toStringList();
+            if (!batteries.isEmpty()) {
+                loadDefaultApplet("battery", panel);
+            }
+        }
+        engines->unloadEngine("powermanagement");
+
+        if (QFile::exists("/usr/share/kde4/services/plasma-applet-networkmanagement.desktop")) {
+            loadDefaultApplet("networkmanagement", panel);
+        }
+
+        loadDefaultApplet("digital-clock", panel);
+        loadDefaultApplet("lockout", panel);
+
+        QTimer::singleShot(1000, this, SLOT(saveDefaultSetup()));
+     }
+  }
 }
 
+Plasma::Applet *FolderView::loadDefaultApplet(const QString &pluginName, Plasma::Containment *c)
+{
+    QVariantList args;
+    Plasma::Applet *applet = Plasma::Applet::load(pluginName, 0, args);
+
+    if (applet) {
+        c->addApplet(applet);
+    }
+
+    return applet;
+}
+
+void FolderView::saveDefaultSetup()
+{
+    // a "null" KConfigGroup is used to force a save into the config file
+    KConfigGroup invalidConfig;
+
+    foreach (Plasma::Containment *containment, corona()->containments()) {
+        containment->save(invalidConfig);
+
+        foreach (Plasma::Applet* applet, containment->applets()) {
+            applet->init();
+            applet->updateConstraints(Plasma::AllConstraints | Plasma::StartupCompletedConstraint);
+            applet->flushPendingConstraintsEvents();
+            applet->save(invalidConfig);
+        }
+    }
+
+    corona()->requestConfigSync();
+}
+               
 void FolderView::runCommand()
-{
+{              
     if (!KAuthorized::authorizeKAction("run_command")) {
         return;
-    }
-
+    }          
+               
     QDBusInterface krunner("org.kde.krunner", "/App", "org.kde.krunner.App", QDBusConnection::sessionBus());
     krunner.call("display");
-}
-
+}              
+               
 void FolderView::lockScreen()
-{
+{              
     if (!KAuthorized::authorizeKAction("lock_screen")) {
         return;
-    }
-
+    }          
+               
 #ifndef Q_OS_WIN
     QDBusInterface screensaver("org.freedesktop.ScreenSaver", "/ScreenSaver",
                                "org.freedesktop.ScreenSaver", QDBusConnection::sessionBus());
     if (screensaver.isValid()) {
         screensaver.call("Lock");
-    }
-#else
+    }          
+#else          
     LockWorkStation();
-#endif
-}
-
+#endif         
+}              
+               
 void FolderView::logout()
 {
     if (!KAuthorized::authorizeKAction("logout")) {