From 306c5ad966c602b944d5b70e7662df6a4f05bfc4 Mon Sep 17 00:00:00 2001
From: "roc+%cs.cmu.edu" <roc+%cs.cmu.edu@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Thu, 11 Aug 2005 05:06:22 +0000
Subject: [PATCH] Bug 78510. bryner's checkin fixed the Firefox problems so I'm
 undoing my previous partial-backout.

git-svn-id: svn://10.0.0.236/trunk@177538 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/docshell/base/nsDocShell.cpp | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/mozilla/docshell/base/nsDocShell.cpp b/mozilla/docshell/base/nsDocShell.cpp
index d8bf45554e1..1120377cab6 100644
--- a/mozilla/docshell/base/nsDocShell.cpp
+++ b/mozilla/docshell/base/nsDocShell.cpp
@@ -66,6 +66,7 @@
 #include "nsIWebBrowserChrome.h"
 #include "nsPoint.h"
 #include "nsGfxCIID.h"
+#include "nsIObserverService.h"
 #include "nsIPrompt.h"
 #include "nsIAuthPrompt.h"
 #include "nsTextFormatter.h"
@@ -7831,13 +7832,27 @@ NS_IMETHODIMP nsDocShell::MakeEditable(PRBool inWaitForUriLoad)
 nsresult
 nsDocShell::AddToGlobalHistory(nsIURI * aURI, PRBool aRedirect, nsIURI * aReferrer)
 {
-    if (mItemType != typeContent)
+    if (mItemType != typeContent || !mGlobalHistory)
         return NS_OK;
 
-    if (!mGlobalHistory)
-        return NS_OK;
+    PRBool visited;
+    nsresult rv = mGlobalHistory->IsVisited(aURI, &visited);
+    if (NS_FAILED(rv))
+        return rv;
+    
+    rv = mGlobalHistory->AddURI(aURI, aRedirect, !IsFrame(), aReferrer);
+    if (NS_FAILED(rv))
+        return rv;
 
-    return mGlobalHistory->AddURI(aURI, aRedirect, !IsFrame(), aReferrer);
+    if (!visited) {
+        nsCOMPtr<nsIObserverService> obsService =
+            do_GetService("@mozilla.org/observer-service;1");
+        if (obsService) {
+            obsService->NotifyObservers(aURI, NS_LINK_VISITED_EVENT_TOPIC, nsnull);
+        }
+    }
+
+    return NS_OK;
 }
 
 //*****************************************************************************