Added function GetClipView()

git-svn-id: svn://10.0.0.236/trunk@29020 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/view/public/nsIScrollableView.h

@@ -203,6 +203,11 @@ public:
    */
   NS_IMETHOD ScrollByPages(PRInt32 aNumPages) = 0;
 
+  /**
+   * Returns the clip view
+   */
+  NS_IMETHOD GetClipView(const nsIView** aClipView) const = 0;
+
 private:
   NS_IMETHOD_(nsrefcnt) AddRef(void) = 0;
   NS_IMETHOD_(nsrefcnt) Release(void) = 0;

mozilla/view/src/nsScrollingView.cpp

@@ -607,7 +607,13 @@ NS_IMETHODIMP nsScrollingView :: SetVisibility(nsViewVisibility aVisibility)
   }
   return rv;
 }
-
+  
+NS_IMETHODIMP nsScrollingView :: GetClipView(const nsIView** aClipView) const
+{
+  NS_PRECONDITION(aClipView, "null pointer");
+  *aClipView = mClipView;
+  return NS_OK;
+}
 
 void nsScrollingView :: HandleScrollEvent(nsGUIEvent *aEvent, PRUint32 aEventFlags)
 {
@@ -1087,7 +1093,7 @@ NS_IMETHODIMP nsScrollingView :: ComputeScrollOffsets(PRBool aAdjustWidgets)
           // of a problem. 
           if (0 == oldsizey)
             mOffsetY = 0;
-          else
+            else
           {
             mOffsetY = NSIntPixelsToTwips(NSTwipsToIntPixels(nscoord(((float)oldpos * mSizeY) / oldsizey), scale), p2t);
 

mozilla/view/src/nsScrollingView.h

@@ -74,6 +74,8 @@ public:
   NS_IMETHOD  GetLineHeight(nscoord *aHeight);
   NS_IMETHOD  ScrollByLines(PRInt32 aNumLines);
   NS_IMETHOD  ScrollByPages(PRInt32 aNumPages);
+  
+  NS_IMETHOD  GetClipView(const nsIView** aClipView) const;
 
   //locals
   void HandleScrollEvent(nsGUIEvent *aEvent, PRUint32 aEventFlags);