Custom Toolbar Buttons for Thunderbird

MsgEmptyTrash();

//=====================================================================
// Modification of deleteJunkInFolder().
//
function junkJunkInFolder()
{
  MsgJunkMailInfo(true);
  var view = GetDBView();

  // Get junk mail folder.
  var msgURI = view.getURIForViewIndex(0);
  var msgHdr = messenger.msgHdrFromURI(msgURI);
  var server = msgHdr.folder.server;
  var spamSettings = server.spamSettings;
  var spamFolderURI = spamSettings.spamFolderURI;
  var currentFolderURI = msgHdr.folder.folderURL
  if ( !spamFolderURI ) {
    dump('no spam folder!');
    return;
  }
  //alert("Current folder is: " + currentFolderURI + "\nJunk folder is: " + spamFolderURI);

  if ( currentFolderURI == spamFolderURI ) {
     //alert("Current folder is the Junk folder");
     return;
  }

  var junkTargetFolder = GetMsgFolderFromUri(spamFolderURI);

  // Select junk messages.
  // Need to expand all threads, so we find everything
  view.doCommand(nsMsgViewCommandType.expandAll);

  var treeView = view.QueryInterface(Components.interfaces.nsITreeView);
  var count = treeView.rowCount;
  if ( !count ) return;

  var treeSelection = treeView.selection;
  var clearedSelection = false;

  for ( var i = 0; i < count; ++i ) {
    var messageUri = view.getURIForViewIndex(i);
    var msgHdr = messenger.msgHdrFromURI(messageUri);
    var junkScore = msgHdr.getStringProperty("junkscore");
    var isJunk = ((junkScore != "") && (junkScore != "0"));
    // if the message is junk, select it.
    if ( isJunk ) {
      // only do this once
      if ( !clearedSelection ) {
        // clear the current selection
        // since we will be deleting all selected messages
        treeSelection.clearSelection();
        clearedSelection = true;
        treeSelection.selectEventsSuppressed = true;
      }
      treeSelection.rangedSelect(i, i, true /* augment */);
    }
  }

  // If we didn't clear the selection there was no junk, so bail.
  if ( !clearedSelection ) return;

  treeSelection.selectEventsSuppressed = false;
  // delete the selected messages
  SetNextMessageAfterDelete();
  view.doCommandWithFolder(nsMsgViewCommandType.moveMessages, junkTargetFolder);
  treeSelection.clearSelection();
}

//=====================================================================
junkJunkInFolder();