fix for #60532. update the status and progress bar less frequently.

the less time I spend painting, the more time I spend doing the subscribe
work, which means we finish quicker.  sr=mscott

mailnews/news/resources/locale/en-US/news.properties

@@ -38,7 +38,7 @@ enterPassword=Please enter a password for news server access
 enterPasswordTitle=News Server Password Required
 okButtonText=Download
 
-bytesReceived=received %S bytes
+bytesReceived=%S K read (at %SK/sec) 
 checkingForNewNews=Checking newsgroup %S of %S for new messages
 
 # LOCALIZATION NOTE (Error -304): In the following item, don't translate "NNTP"

mailnews/news/src/nsNNTPProtocol.cpp

@@ -456,7 +456,9 @@ nsNNTPProtocol::nsNNTPProtocol(nsIURI * aURL, nsIMsgWindow *aMsgWindow)
 
     m_commandSpecificData = nsnull;
     m_searchData = nsnull;
+
 	mBytesReceived = 0;
+    mBytesReceivedSinceLastStatusUpdate = 0;
 
     if (aMsgWindow) {
         m_msgWindow = aMsgWindow;
@@ -1262,6 +1264,7 @@ PRInt32 nsNNTPProtocol::NewsResponse(nsIInputStream * inputStream, PRUint32 leng
         FE_GraphProgress(ce->window_id, ce->URL_s, ce->bytes_received, status, ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 #endif
 	}
 
@@ -2278,6 +2281,7 @@ PRInt32 nsNNTPProtocol::ReadArticle(nsIInputStream * inputStream, PRUint32 lengt
 						 ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 #endif
 	}
 
@@ -2733,6 +2737,7 @@ PRInt32 nsNNTPProtocol::BeginNewsgroups()
 	ce->bytes_received = 0;
 #else
 	mBytesReceived = 0;
+    mBytesReceivedSinceLastStatusUpdate = 0;
 #endif
 	return(status);
 }
@@ -2805,6 +2810,7 @@ PRInt32 nsNNTPProtocol::ProcessNewsgroups(nsIInputStream * inputStream, PRUint32
         FE_GraphProgress(ce->window_id, ce->URL_s, ce->bytes_received, status, ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 #endif
     }
 
@@ -2835,6 +2841,7 @@ PRInt32 nsNNTPProtocol::ProcessNewsgroups(nsIInputStream * inputStream, PRUint32
 	ce->bytes_received++;  /* small numbers of groups never seem to trigger this */
 #else
 	mBytesReceived += status;
+    mBytesReceivedSinceLastStatusUpdate += status;
 #endif
 #if 0
 	m_newsHost->AddNewNewsgroup(line, oldest, youngest, flag, PR_FALSE);
@@ -2865,7 +2872,10 @@ PRInt32 nsNNTPProtocol::BeginReadNewsList()
 {
 	m_readNewsListCount = 0;
     m_nextState = NNTP_READ_LIST;
+
     mBytesReceived = 0;
+    mBytesReceivedSinceLastStatusUpdate = 0;
+
 	PRInt32 status = 0;
 #ifdef UNREADY_CODE
 	NET_Progress(ce->window_id, XP_GetString(XP_PROGRESS_RECEIVE_NEWSGROUP));
@@ -2924,12 +2934,15 @@ PRInt32 nsNNTPProtocol::ReadNewsList(nsIInputStream * inputStream, PRUint32 leng
         FE_GraphProgress(ce->window_id, ce->URL_s, ce->bytes_received, status, ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 
-		if (m_msgWindow) {
-        	nsCOMPtr <nsIMsgStatusFeedback> msgStatusFeedback;
+        // only update every 10 KB
+        if ((mBytesReceivedSinceLastStatusUpdate > (1024 * 25)) && m_msgWindow) {
+                mBytesReceivedSinceLastStatusUpdate = 0;
+        	    nsCOMPtr <nsIMsgStatusFeedback> msgStatusFeedback;
 
-        	rv = m_msgWindow->GetStatusFeedback(getter_AddRefs(msgStatusFeedback));
-        	if (NS_FAILED(rv)) return rv;
+        	    rv = m_msgWindow->GetStatusFeedback(getter_AddRefs(msgStatusFeedback));
+        	    if (NS_FAILED(rv)) return rv;
 // XXXXX
                 nsXPIDLString statusString;
 		
@@ -2942,17 +2955,22 @@ PRInt32 nsNNTPProtocol::ReadNewsList(nsIInputStream * inputStream, PRUint32 leng
                                             getter_AddRefs(bundle));
                 NS_ENSURE_SUCCESS(rv, rv);
 
-                nsAutoString bytesStr; bytesStr.AppendInt(mBytesReceived);
-		
-                const PRUnichar *formatStrings[] = { bytesStr.GetUnicode() };
-        NS_NAMED_LITERAL_STRING(literalPropertyTag, "bytesReceived");
+                nsString kBytesStr; 
+                kBytesStr.AppendInt(mBytesReceived / 1024);
+
+		        nsString kRateStr; 
+                // todo, fix this
+                //kRateStr.AppendFloat(0.0);
+                kRateStr.AppendWithConversion("?.?");
+                const PRUnichar *formatStrings[2] = { kBytesStr.GetUnicode(), kRateStr.GetUnicode() };
+                NS_NAMED_LITERAL_STRING(literalPropertyTag, "bytesReceived");
 				const PRUnichar *propertyTag = literalPropertyTag.get();
                 rv = bundle->FormatStringFromName(propertyTag,
-                                                  formatStrings, 1,
+                                                  formatStrings, 2,
                                                   getter_Copies(statusString));
 
-        	rv = msgStatusFeedback->ShowStatusString(statusString);
-        	if (NS_FAILED(rv)) return rv;
+        	    rv = msgStatusFeedback->ShowStatusString(statusString);
+        	    if (NS_FAILED(rv)) return rv;
 		}
 #endif
     }
@@ -3266,6 +3284,7 @@ PRInt32 nsNNTPProtocol::ReadXover(nsIInputStream * inputStream, PRUint32 length)
 						 ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 #endif
 	}
 
@@ -4395,6 +4414,7 @@ PRInt32 nsNNTPProtocol::ListXActiveResponse(nsIInputStream * inputStream, PRUint
 		FE_GraphProgress(ce->window_id, ce->URL_s, ce->bytes_received, status, ce->URL_s->content_length);
 #else
 		mBytesReceived += status;
+        mBytesReceivedSinceLastStatusUpdate += status;
 #endif
 	}
 

mailnews/news/src/nsNNTPProtocol.h

@@ -404,6 +404,7 @@ private:
     nsCOMPtr <nsITimer> mUpdateTimer; 
 	nsresult AlertError(PRInt32 errorCode, const char *text);
 	PRInt32 mBytesReceived;
+    PRInt32 mBytesReceivedSinceLastStatusUpdate;
 };
 
 NS_BEGIN_EXTERN_C

mailnews/news/src/nsNntpIncomingServer.cpp

@@ -43,6 +43,9 @@
 #define PREF_MAIL_NEWSRC_ROOT    "mail.newsrc_root"
 #define HOSTINFO_FILE_NAME		 "hostinfo.dat"
 
+#define OLD_PERCENT_INITIAL_VALUE 0
+#define PERCENT_CHANGE_THRESHHOLD 10
+
 #define NEWS_DELIMITER   '.'
 
 #define HOSTINFO_COUNT_MAX 200 /* number of groups to process at a time when reading the list from the hostinfo.dat file */
@@ -92,6 +95,7 @@ nsNntpIncomingServer::nsNntpIncomingServer() : nsMsgLineBuffer(nsnull, PR_FALSE)
   mHasSeenBeginGroups = PR_FALSE;
   mVersion = 0;
   mGroupsOnServerIndex = 0;
+  mOldPercent = OLD_PERCENT_INITIAL_VALUE;
   mGroupsOnServerCount = 0;
   SetupNewsrcSaveTimer();
 }
@@ -868,6 +872,7 @@ nsNntpIncomingServer::StartPopulatingFromHostInfo()
 #endif
 
 	mGroupsOnServerCount = mGroupsOnServer.Count();
+    mOldPercent = OLD_PERCENT_INITIAL_VALUE;
 	nsCString currentGroup;
 
 	while (mGroupsOnServerIndex < mGroupsOnServerCount) {
@@ -890,10 +895,12 @@ nsNntpIncomingServer::StartPopulatingFromHostInfo()
 		if (NS_FAILED(rv)) return rv;
 
 		if (mGroupsOnServerCount != 0) {
-			// xxx todo
-			// if old percent == new percent, don't call ShowProgress()
-			// why poke the front end, through xpconnect, if we don't have to?
-			rv = msgStatusFeedback->ShowProgress((mGroupsOnServerIndex * 100) / mGroupsOnServerCount);
+            // only poke the front end if the percentage has grown by at least PERCENT_CHANGE_THRESHHOLD
+            PRInt32 newPercent = (mGroupsOnServerIndex * 100) / mGroupsOnServerCount;
+            if (newPercent > (mOldPercent + PERCENT_CHANGE_THRESHHOLD)) {
+			    rv = msgStatusFeedback->ShowProgress(newPercent);
+            }
+            mOldPercent = newPercent;
 		}
 		if (NS_FAILED(rv)) return rv;
 	}

mailnews/news/src/nsNntpIncomingServer.h

@@ -87,6 +87,7 @@ protected:
 private:
 	PRInt32 mGroupsOnServerIndex;
 	PRInt32 mGroupsOnServerCount;
+    PRInt32 mOldPercent;
 	nsCStringArray mGroupsOnServer;
 	nsCStringArray mSubscribedNewsgroups;