diff --git a/src/views/CallView.h b/src/views/CallView.h
index 06b4590..b15d525 100644
--- a/src/views/CallView.h
+++ b/src/views/CallView.h
@@ -29,6 +29,15 @@
  */
 #import <Cocoa/Cocoa.h>
 
+@protocol FullScreenDelegate;
+@protocol FullScreenDelegate
+
+@optional
+
+-(void) callShouldToggleFullScreen;
+
+@end
+
 @interface CallView : NSView <NSDraggingDestination, NSOpenSavePanelDelegate>
 {
     //highlight the drop zone
@@ -42,4 +51,9 @@
  */
 @property BOOL shouldAcceptInteractions;
 
+/**
+ *  Delegate to inform about desire to move
+ */
+@property (nonatomic) id <FullScreenDelegate> fullScreenDelegate;
+
 @end