src/statusbar/spaceinfoobserver.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 "spaceinfoobserver.h"
  21
  22 #include "mountpointobserver.h"
  23
  24 #include <KUrl>
  25
  26 SpaceInfoObserver::SpaceInfoObserver(const KUrl& url, QObject* parent) :
  27     QObject(parent),
  28     m_mountPointObserver(0)
  29 {
  30     if (url.isLocalFile()) {
  31         m_mountPointObserver = MountPointObserver::observerForPath(url.toLocalFile());
  32         m_mountPointObserver->ref();
  33         connect(m_mountPointObserver, SIGNAL(spaceInfoChanged()), this, SIGNAL(valuesChanged()));
  34     }
  35 }
  36
  37 SpaceInfoObserver::~SpaceInfoObserver()
  38 {
  39     if (m_mountPointObserver) {
  40         m_mountPointObserver->deref();
  41         m_mountPointObserver = 0;
  42     }
  43 }
  44
  45 quint64 SpaceInfoObserver::size() const
  46 {
  47     if (m_mountPointObserver && m_mountPointObserver->spaceInfo().isValid()) {
  48         return m_mountPointObserver->spaceInfo().size();
  49     } else {
  50         return 0;
  51     }
  52 }
  53
  54 quint64 SpaceInfoObserver::available() const
  55 {
  56     if (m_mountPointObserver && m_mountPointObserver->spaceInfo().isValid()) {
  57         return m_mountPointObserver->spaceInfo().available();
  58     } else {
  59         return 0;
  60     }
  61 }
  62
  63 void SpaceInfoObserver::setUrl(const KUrl& url)
  64 {
  65     if (url.isLocalFile()) {
  66         MountPointObserver* newObserver = MountPointObserver::observerForPath(url.toLocalFile());
  67         if (newObserver != m_mountPointObserver) {
  68             if (m_mountPointObserver) {
  69                 disconnect(m_mountPointObserver, SIGNAL(spaceInfoChanged()), this, SIGNAL(valuesChanged()));
  70                 m_mountPointObserver->deref();
  71                 m_mountPointObserver = 0;
  72             }
  73
  74             m_mountPointObserver = newObserver;
  75             m_mountPointObserver->ref();
  76             connect(m_mountPointObserver, SIGNAL(spaceInfoChanged()), this, SIGNAL(valuesChanged()));
  77
  78             emit valuesChanged();
  79         }
  80     } else {
  81         if (m_mountPointObserver) {
  82             disconnect(m_mountPointObserver, SIGNAL(spaceInfoChanged()), this, SIGNAL(valuesChanged()));
  83             m_mountPointObserver->deref();
  84             m_mountPointObserver = 0;
  85
  86             emit valuesChanged();
  87         }
  88     }
  89 }