Bug #265478 --> When clicking on / away from virtual folders, weird focus issues with quick search box.

sr=bienvenu

mail/base/content/commandglue.js

@@ -807,7 +807,6 @@ function FolderPaneSelectionChange()
             gVirtualFolderTerms = null;
             gXFVirtualFolderTerms = null;
             gPrevFolderFlags = folderFlags;
-//            gSearchInput.showingSearchCriteria = false;
             gCurrentVirtualFolderUri = null;
             // don't get the db if this folder is a server
             // we're going to be display account central
@@ -840,7 +839,6 @@ function FolderPaneSelectionChange()
                       viewType = nsMsgViewType.eShowVirtualFolderResults;
                       gXFVirtualFolderTerms = CreateGroupedSearchTerms(tempFilter.searchTerms);
                       setupXFVirtualFolderSearch(srchFolderUriArray, gXFVirtualFolderTerms, searchOnline);
-                      gSearchInput.showingSearchCriteria = false;
                       // need to set things up so that reroot folder issues the search
                     }
                     else
@@ -852,10 +850,7 @@ function FolderPaneSelectionChange()
                       var realFolderRes = GetResourceFromUri(uriToLoad);
                       var realFolder = realFolderRes.QueryInterface(Components.interfaces.nsIMsgFolder);
                       msgDatabase = realFolder.getMsgDatabase(msgWindow);
-//                      dump("search term string = " + searchTermString + "\n");
-                    
                       gVirtualFolderTerms = CreateGroupedSearchTerms(tempFilter.searchTerms);
-                      gSearchInput.showingSearchCriteria = false;
                     }
                   }
                   else

mail/base/content/msgMail3PaneWindow.js

@@ -256,7 +256,7 @@ var folderListener = {
              {
                 gDefaultSearchViewTerms = null;
                 viewDebug("searching gVirtualFolderTerms\n");
-                onClearSearch(); // clear quick search bar
+                loadVirtualFolder(); 
              }
              else if (gMsgFolderSelected.flags & MSG_FOLDER_FLAG_VIRTUAL)
              {
@@ -266,7 +266,7 @@ var folderListener = {
              else if (gDefaultSearchViewTerms)
              {
                 viewDebug("searching gDefaultSearchViewTerms and rerootingFolder\n");
-               onClearSearch();
+               Search("");
              }
              else
              {

mail/base/content/searchBar.js

@@ -635,6 +635,14 @@ function Search(str)
   onSearchInput(true);
 }
 
+// When the front end has finished loading a virtual folder, it calls openVirtualFolder
+// to actually perform the folder search. We use this method instead of calling Search("") directly
+// from FolderLoaded in order to avoid moving focus into the search bar.
+function loadVirtualFolder()
+{
+  onEnterInSearchBar();
+}
+
 // this notification gets generated from layout when it finishes laying out a message
 // in the message pane. 
 function onQuickSearchNewMsgLoaded()