From d40fa73ba2ef83dd871840f93fb35bf3db40b74b Mon Sep 17 00:00:00 2001
From: "troy%netscape.com"
 <troy%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Sat, 24 Apr 1999 02:52:58 +0000
Subject: [PATCH] Added function GetClipView()

git-svn-id: svn://10.0.0.236/trunk@29020 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/view/public/nsIScrollableView.h |  5 +++++
 mozilla/view/src/nsScrollingView.cpp    | 10 ++++++++--
 mozilla/view/src/nsScrollingView.h      |  2 ++
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/mozilla/view/public/nsIScrollableView.h b/mozilla/view/public/nsIScrollableView.h
index bc3ce11bde4..cec1cec9e50 100644
--- a/mozilla/view/public/nsIScrollableView.h
+++ b/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;
diff --git a/mozilla/view/src/nsScrollingView.cpp b/mozilla/view/src/nsScrollingView.cpp
index e5266de07d4..2b4c8d15ed3 100644
--- a/mozilla/view/src/nsScrollingView.cpp
+++ b/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);
 
diff --git a/mozilla/view/src/nsScrollingView.h b/mozilla/view/src/nsScrollingView.h
index 07bc5454b9e..e427d8afd0d 100644
--- a/mozilla/view/src/nsScrollingView.h
+++ b/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);