Bug 121176 Turn off title setting when the message pane is collapsed r+sr=dmose

git-svn-id: svn://10.0.0.236/trunk@182926 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/mailnews/base/resources/content/commandglue.js

@@ -778,9 +778,13 @@ function ChangeMessagePaneVisibility(now_hidden)
     node.hidden = now_hidden;
 
   if (gDBView) {
+    // clear the subject, collapsing won't automatically do this
+    setTitleFromFolder(GetThreadPaneFolder(), null);
     // the collapsed state is the state after we released the mouse 
     // so we take it as it is
     gDBView.suppressMsgDisplay = now_hidden;
+    // set the subject, uncollapsing won't automatically do this
+    gDBView.reloadMessage();
   }
   var event = document.createEvent('Events');
   if (now_hidden) {

mozilla/mailnews/base/resources/content/threadPane.js

@@ -104,7 +104,8 @@ nsMsgDBViewCommandUpdater.prototype =
 
   displayMessageChanged : function(aFolder, aSubject, aKeywords)
   {
-    setTitleFromFolder(aFolder, aSubject);
+    if (!gDBView.suppressMsgDisplay)
+      setTitleFromFolder(aFolder, aSubject);
     ClearPendingReadTimer(); // we are loading / selecting a new message so kill the mark as read timer for the currently viewed message
     gHaveLoadedMessage = true;
     SetKeywords(aKeywords);