src/statusbar/mountpointobserver.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2014 by Frank Reininghaus <frank78ac@googlemail.com>    *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20 #include "mountpointobserver.h"
  21 #include "mountpointobservercache.h"
  22
  23 MountPointObserver::MountPointObserver(const QString& mountPoint, QObject* parent) :
  24     QObject(parent),
  25     m_mountPoint(mountPoint),
  26     m_referenceCount(0),
  27     m_spaceInfo(KDiskFreeSpaceInfo::freeSpaceInfo(mountPoint))
  28 {
  29 }
  30
  31 MountPointObserver* MountPointObserver::observerForPath(const QString& path)
  32 {
  33     MountPointObserver* observer = MountPointObserverCache::instance()->observerForPath(path);
  34     return observer;
  35 }
  36
  37 void MountPointObserver::update()
  38 {
  39     if (m_referenceCount == 0) {
  40         delete this;
  41     } else {
  42         const KDiskFreeSpaceInfo spaceInfo = KDiskFreeSpaceInfo::freeSpaceInfo(m_mountPoint);
  43         if (spaceInfo.size() != m_spaceInfo.size() || spaceInfo.available() != m_spaceInfo.available()) {
  44             m_spaceInfo = spaceInfo;
  45             emit spaceInfoChanged();
  46         }
  47     }
  48 }