From 6b1af498feffd511e6b783988f3db5ebd45aa353 Mon Sep 17 00:00:00 2001
From: "mjudge%netscape.com"
 <mjudge%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Wed, 22 Sep 1999 06:12:44 +0000
Subject: [PATCH] recursion failing finding the same frame we started with
 sometimes with generated content from style. simple 2 line check to avoind
 this. dagley said ok to check in red tree since not hurting anyone.

git-svn-id: svn://10.0.0.236/trunk@48812 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/layout/generic/nsFrame.cpp       | 11 ++++++++++-
 mozilla/layout/html/base/src/nsFrame.cpp | 11 ++++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/mozilla/layout/generic/nsFrame.cpp b/mozilla/layout/generic/nsFrame.cpp
index 56a53741b2b..bc9ab0e05f8 100644
--- a/mozilla/layout/generic/nsFrame.cpp
+++ b/mozilla/layout/generic/nsFrame.cpp
@@ -2023,7 +2023,16 @@ nsFrame::PeekOffset(nsPeekOffsetStruct *aPos)
                                         edgeCase, //start from thisLine
                                         &(aPos->mResultFrame)
                                         );
-          doneLooping = PR_TRUE; //do not continue with while loop
+          if (aPos->mResultFrame == this)//we came back to same spot! keep going
+          {
+            aPos->mResultFrame = nsnull;
+            if (aPos->mDirection == eDirPrevious)
+              thisLine--;
+            else
+              thisLine++;
+          }
+          else
+            doneLooping = PR_TRUE; //do not continue with while loop
           if (NS_SUCCEEDED(result) && aPos->mResultFrame){
             result = aPos->mResultFrame->QueryInterface(nsILineIterator::GetIID(),getter_AddRefs(it));
             if (NS_SUCCEEDED(result) && it)//we have struck another block element!
diff --git a/mozilla/layout/html/base/src/nsFrame.cpp b/mozilla/layout/html/base/src/nsFrame.cpp
index 56a53741b2b..bc9ab0e05f8 100644
--- a/mozilla/layout/html/base/src/nsFrame.cpp
+++ b/mozilla/layout/html/base/src/nsFrame.cpp
@@ -2023,7 +2023,16 @@ nsFrame::PeekOffset(nsPeekOffsetStruct *aPos)
                                         edgeCase, //start from thisLine
                                         &(aPos->mResultFrame)
                                         );
-          doneLooping = PR_TRUE; //do not continue with while loop
+          if (aPos->mResultFrame == this)//we came back to same spot! keep going
+          {
+            aPos->mResultFrame = nsnull;
+            if (aPos->mDirection == eDirPrevious)
+              thisLine--;
+            else
+              thisLine++;
+          }
+          else
+            doneLooping = PR_TRUE; //do not continue with while loop
           if (NS_SUCCEEDED(result) && aPos->mResultFrame){
             result = aPos->mResultFrame->QueryInterface(nsILineIterator::GetIID(),getter_AddRefs(it));
             if (NS_SUCCEEDED(result) && it)//we have struck another block element!