view/aaTreeViewResource.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent tw=79 ft=cpp: */
   3 /*
   4  * Copyright (C) 2007 Sergey Yanovich <ynvich@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include "xpcom-config.h"
  23
  24 #include "nsCOMPtr.h"
  25 #include "nsStringAPI.h"
  26
  27 /* Unfrozen API */
  28 #include "nsIArray.h"
  29 #include "nsArrayUtils.h"
  30 #include "nsITreeColumns.h"
  31
  32 /* Project includes */
  33 #include "aaIResource.h"
  34 #include "aaILoadQuery.h"
  35 #include "aaTreeViewResource.h"
  36
  37 aaTreeViewResource::aaTreeViewResource()
  38 {
  39 }
  40
  41 aaTreeViewResource::~aaTreeViewResource()
  42 {
  43 }
  44
  45 NS_IMPL_ISUPPORTS_INHERITED0(aaTreeViewResource, aaTreeView)
  46
  47 /* Private functions */
  48 nsresult
  49 aaTreeViewResource::doGetCellText(PRInt32 row, nsITreeColumn *col,
  50     nsAString & _retval)
  51 {
  52   nsresult rv;
  53   NS_ENSURE_TRUE(col, NS_ERROR_INVALID_ARG);
  54
  55   PRInt32 ci;
  56   rv = col->GetIndex(&ci);
  57   NS_ENSURE_SUCCESS(rv, rv);
  58   if (ci > 0) {
  59     _retval.Truncate();
  60     return NS_OK;
  61   }
  62
  63   nsCOMPtr<aaIResource> resource(do_QueryElementAt(mDataSet, row, &rv));
  64   NS_ENSURE_SUCCESS(rv, rv);
  65   if (resource)
  66     return resource->GetTag(_retval);
  67
  68   _retval.Truncate();
  69   return NS_OK;
  70 }