Bug #145798 --> Create Filter from Message is not doable when message pane is closed.

Porting to thunderbird

patch by mcow

mail/base/content/mail3PaneWindowCommands.js

@@ -259,17 +259,14 @@ var DefaultController =
           gDBView.getCommandStatus(nsMsgViewCommandType.toggleThreadWatched, enabled, checkStatus);
         return enabled.value;
       case "cmd_createFilterFromPopup":
+      case "cmd_createFilterFromMenu":
         var loadedFolder = GetLoadedMsgFolder();
         if (!(loadedFolder && loadedFolder.server.canHaveFilters))
-          return false;
-      case "cmd_createFilterFromMenu":
-        loadedFolder = GetLoadedMsgFolder();
-        if (!(loadedFolder && loadedFolder.server.canHaveFilters) || !(IsMessageDisplayedInMessagePane()))
-          return false;
+          return false;   // else fall thru
       case "cmd_saveAsFile":
       case "cmd_saveAsTemplate":
-	      if ( GetNumSelectedMessages() > 1)
-          return false;
+        if (GetNumSelectedMessages() > 1)
+          return false;   // else fall thru
       case "cmd_reply":
       case "button_reply":
       case "cmd_replySender":
@@ -286,12 +283,12 @@ var DefaultController =
       case "cmd_print":
       case "cmd_viewPageSource":
       case "cmd_reload":
-	      if ( GetNumSelectedMessages() > 0)
+        if (GetNumSelectedMessages() > 0)
         {
           if (gDBView)
           {
-             gDBView.getCommandStatus(nsMsgViewCommandType.cmdRequiringMsgBody, enabled, checkStatus);
-              return enabled.value;
+            gDBView.getCommandStatus(nsMsgViewCommandType.cmdRequiringMsgBody, enabled, checkStatus);
+            return enabled.value;
           }
         }
         return false;

mail/base/content/mailWindowOverlay.js

@@ -1004,22 +1004,16 @@ function MsgEditMessageAsNew()
 
 function MsgCreateFilter()
 {
-  var emailAddressNode;
+  // retrieve Sender direct from selected message's headers
+  var msgHdr = gDBView.hdrForFirstSelectedMessage;
+  var headerParser = Components.classes["@mozilla.org/messenger/headerparser;1"].getService(Components.interfaces.nsIMsgHeaderParser);
+  var emailAddress = headerParser.extractHeaderAddressMailboxes(null, msgHdr.author);
 
-  if (gCollapsedHeaderViewMode)
-    emailAddressNode = document.getElementById("collapsedfromValue");
-  else
-    emailAddressNode = document.getElementById("expandedfromBox").emailAddressNode;
-  
-  if (emailAddressNode)
-  {
-     var emailAddress = emailAddressNode.getTextAttribute("emailAddress");
-     if (emailAddress){
-         top.MsgFilters(emailAddress);
-     }
-  }
+  if (emailAddress)
+    top.MsgFilters(emailAddress);
 }
 
+
 function MsgHome(url)
 {
   window.open(url, "_blank", "chrome,dependent=yes,all");