Add support for removing packages

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=846532

package.cpp

@@ -28,6 +28,7 @@
 #include <KComponentData>
 #include <KDesktopFile>
 #include <KIO/CopyJob>
+#include <KIO/DeleteJob>
 #include <KIO/FileCopyJob>
 #include <KIO/Job>
 #include <KPluginInfo>
@@ -332,6 +333,42 @@ bool Package::installPackage(const QString& package,
     return true;
 }
 
+bool Package::uninstallPackage(const QString& pluginName,
+			       const QString& packageRoot) // static
+{
+    // We need to remove the package directory and its metadata file.
+    QString targetName = pluginName;
+    targetName = packageRoot + '/' + targetName;
+
+    if (!QFile::exists(targetName)) {
+        kWarning() << targetName << "does not exist";
+        return false;
+    }
+
+    QString serviceName;
+    if (KGlobal::hasMainComponent()) {
+        serviceName = KGlobal::mainComponent().componentName();
+    }
+    serviceName.append("_plasma_applet_" + pluginName);
+
+    QString service = KStandardDirs::locateLocal("services", serviceName + ".desktop");
+    kDebug() << "Removing service file " << service;
+    bool ok = QFile::remove( service );
+
+    if ( !ok ) {
+	kWarning() << "Unable to remove " << service;
+	return ok;
+    }
+
+    KIO::DeleteJob *job = KIO::del( KUrl(targetName) );
+    if (!job->exec()) {
+	kWarning() << "Could not delete package from:" << targetName << " : " << job->errorString();
+	return false;
+    }
+
+    return true;
+}
+
 bool Package::registerPackage(const PackageMetadata &data, const QString &iconPath)
 {
     QString serviceName("plasma-applet-" + data.pluginName());

package.h

@@ -131,6 +131,18 @@ class PLASMA_EXPORT Package
         static bool installPackage(const QString &package,
                                    const QString &packageRoot);
 
+        /**
+         * Uninstalls a package.
+         *
+         * @param package path to the Plasmagik package
+         * @param packageRoot path to the directory where the package should be
+         *                    installed to
+         * @return true on successful uninstallation, false otherwise
+         **/
+        static bool uninstallPackage(const QString &package,
+                                   const QString &packageRoot);
+
+
         /**
          * Registers a package described by the given desktop file
          *

packagestructure.cpp

@@ -391,8 +391,7 @@ bool PackageStructure::installPackage(const QString &package, const QString &pac
 
 bool PackageStructure::uninstallPackage(const QString &packageName, const QString &packageRoot)
 {
-    //TODO: implement
-    return false;
+    return Package::uninstallPackage(packageName, packageRoot);
 }
 
 } // Plasma namespace