diff --git a/containment.cpp b/containment.cpp
index 213695d9c..a38c8aec3 100644
--- a/containment.cpp
+++ b/containment.cpp
@@ -205,7 +205,7 @@ void Containment::setContainmentType(Containment::Type type)
             connect(zoomInTool, SIGNAL(clicked()), this, SLOT(zoomIn()));
 
             QGraphicsWidget *zoomOutTool = addToolBoxTool("zoomOut", "zoom-out", i18n("Zoom Out"));
-            connect(zoomOutTool, SIGNAL(clicked()), this, SIGNAL(zoomOut()));
+            connect(zoomOutTool, SIGNAL(clicked()), this, SLOT(zoomOut()));
 
             if (immutability() != SystemImmutable) {
                 QGraphicsWidget *lockTool = addToolBoxTool("lockWidgets", "object-locked",
@@ -498,11 +498,6 @@ void Containment::toggleDesktopImmutability()
     d->setLockToolText();
 }
 
-void Containment::zoomIn()
-{
-    emit zoomIn(this);
-}
-
 void Containment::addSiblingContainment()
 {
     emit addSiblingContainment(this);
@@ -899,6 +894,16 @@ void Containment::closeToolBox()
 
 // Private class implementation
 
+void Containment::Private::zoomIn()
+{
+    emit q->zoomRequested(q, Plasma::ZoomIn);
+}
+
+void Containment::Private::zoomOut()
+{
+    emit q->zoomRequested(q, Plasma::ZoomOut);
+}
+
 Toolbox* Containment::Private::createToolBox()
 {
     if (!toolBox) {
diff --git a/containment.h b/containment.h
index c3b2a8e3d..607bcdb05 100644
--- a/containment.h
+++ b/containment.h
@@ -287,16 +287,9 @@ class PLASMA_EXPORT Containment : public Applet
         void appletRemoved(Plasma::Applet* applet);
 
         /**
-         * Emitted when the containment requests zooming in one step.
-         * Usually only used for desktop containments.
+         * Emitted when the containment requests zooming in or out one step.
          */
-        void zoomIn(Plasma::Containment *);
-
-        /**
-         * Emitted when the containment requests zooming out one step.
-         * Usually only used for desktop containments.
-         */
-        void zoomOut();
+        void zoomRequested(Plasma::Containment * containment, Plasma::ZoomDirection direction);
 
         /**
          * Emitted when the containment wants a new containment to be created.
@@ -347,12 +340,6 @@ class PLASMA_EXPORT Containment : public Applet
          */
         void toggleDesktopImmutability();
 
-        /**
-         * Make the containment request zooming in one step.
-         * Usually only used for desktop containments.
-         */
-        void zoomIn();
-
         /**
          * Tells the corona to create a new desktop containment
          */
@@ -394,6 +381,8 @@ class PLASMA_EXPORT Containment : public Applet
         Q_PRIVATE_SLOT(d, void handleDisappeared(AppletHandle *handle))
         Q_PRIVATE_SLOT(d, void destroyApplet())
         Q_PRIVATE_SLOT(d, void positionToolBox())
+        Q_PRIVATE_SLOT(d, void zoomIn())
+        Q_PRIVATE_SLOT(d, void zoomOut())
 
         friend class Applet;
         class Private;
diff --git a/containment_p.h b/containment_p.h
index 1f239ea10..e743fe046 100644
--- a/containment_p.h
+++ b/containment_p.h
@@ -69,6 +69,8 @@ public:
     void destroyApplet();
     void appletDestroyed(QObject*);
     void appletAnimationComplete(QGraphicsItem *item, Plasma::Animator::Animation anim);
+    void zoomIn();
+    void zoomOut();
 
     Applet* addApplet(const QString& name, const QVariantList& args = QVariantList(),
                       const QRectF &geometry = QRectF(-1, -1, -1, -1), uint id = 0,
diff --git a/plasma.h b/plasma.h
index 9c1479873..e1f4c98aa 100644
--- a/plasma.h
+++ b/plasma.h
@@ -80,6 +80,13 @@ enum Direction { Down = 0 /**< Display downards */ ,
                  Right    /**< Display to the right */
                };
 
+/**
+ * The direction of a zoom action.
+ */
+enum ZoomDirection { ZoomIn = 0 /**< Zoom in one step */,
+                     ZoomOut = 1 /**< Zoom out one step */
+                };
+
 /**
  * The Location enumeration describes where on screen an element, such as an
  * Applet or its managing container, is positioned on the screen.