Bug 298841: first lessButton in edit virtual folder not fully functional; p=Henrik Skupin <hskupin@gmail.com>, r=me, sr=neil, a=cbeard

mailnews/base/resources/content/virtualFolderProperties.js

@@ -105,14 +105,9 @@ function onLoad()
 function setupSearchRows(aSearchTerms)
 {
   if (aSearchTerms && aSearchTerms.Count() > 0)
-  {
-    // load the search terms for the folder
-    initializeSearchRows(nsMsgSearchScope.offlineMail, aSearchTerms);
-    if (aSearchTerms.Count() == 1)
-      document.getElementById("less0").setAttribute("disabled", "true");
-  }
+    initializeSearchRows(nsMsgSearchScope.offlineMail, aSearchTerms); // load the search terms for the folder
   else
-    onMore(null, 0);
+    onMore(null);
 }
 
 function updateOnlineSearchState()

mailnews/base/search/resources/content/searchTermOverlay.js

@@ -195,7 +195,7 @@ function initializeBooleanWidgets()
 
 function initializeSearchRows(scope, searchTerms)
 {
-    for (i = 0; i < searchTerms.Count(); i++) {
+    for (var i = 0; i < searchTerms.Count(); i++) {
         var searchTerm = searchTerms.QueryElementAt(i, nsIMsgSearchTerm);
         createSearchRow(i, scope, searchTerm);
         gTotalSearchTerms++;
@@ -204,37 +204,36 @@ function initializeSearchRows(scope, searchTerms)
     updateRemoveRowButton();
 }
 
-// enables/disables tless button for the first row of search terms.
+// enables/disables the less button for the first row of search terms.
 function updateRemoveRowButton()
 {
   var firstListItem = gSearchTermList.getItemAtIndex(0);
   if (firstListItem)
-    firstListItem.lastChild.lastChild.lastChild.disabled = gTotalSearchTerms == 1;
+    firstListItem.lastChild.lastChild.lastChild.setAttribute("disabled", gTotalSearchTerms == 1);
 }
  
 // Returns the actual list item row index in the list of search rows
 // that contains the passed in element id.
 function getSearchRowIndexForElement(aElement)
 {
-  var listitem = aElement;
-  while (listitem)
-{
-    if (listitem.localName == "listitem") 
-      break;
-    listitem = listitem.parentNode;
-  }
+  var listItem = aElement;
   
-  return gSearchTermList.getIndexOfItem(listitem);
+  while (listItem && listItem.localName != "listitem")
+    listItem = listItem.parentNode;
+    
+  return gSearchTermList.getIndexOfItem(listItem);
 }
 
 function onMore(event)
 {
   // if we have an event, extract the list row index and use that as the row number
   // for our insertion point. If there is no event, append to the end....
+  var rowIndex; 
 
-  var rowIndex = gSearchTermList.getRowCount();
   if (event)
     rowIndex = getSearchRowIndexForElement(event.target) + 1;
+  else
+    rowIndex = gSearchTermList.getRowCount();
 
   createSearchRow(rowIndex, gSearchScope, null);
   gTotalSearchTerms++;
@@ -246,15 +245,11 @@ function onMore(event)
 
 function onLess(event)
 {
-  if (gTotalSearchTerms > 1) 
-  {
-    var rowIndex;
-    if (event)
+  if (event && gTotalSearchTerms > 1) 
   {
     removeSearchRow(getSearchRowIndexForElement(event.target));    
     --gTotalSearchTerms;
   }
-  }
 
   updateRemoveRowButton();
 }