Add Extension to control-impl.h

Change-Id: I152a0e91092461fa836382c2c72a6533c34e781d

diff --git a/dali-toolkit/public-api/controls/control-impl.h b/dali-toolkit/public-api/controls/control-impl.h
index 249fed5..5363c25 100644 (file)
--- a/dali-toolkit/public-api/controls/control-impl.h
+++ b/dali-toolkit/public-api/controls/control-impl.h
@@ -57,6 +57,8 @@ class DALI_IMPORT_API Control : public CustomActorImpl, public ConnectionTracker
 {
 public:
 
+  class Extension; ///< Forward declare future extension interface
+
   // Creation & Destruction
 
   /**
@@ -622,6 +624,16 @@ private:
    */
   virtual void SignalDisconnected( SlotObserver* slotObserver, CallbackBase* callback );
 
+  /**
+   * Retrieve the extension for this control
+   *
+   * @return The extension if available, NULL otherwise
+   */
+  virtual Extension* GetExtension()
+  {
+    return NULL;
+  }
+
 private:
 
   // Undefined