apps/lib/konq/konq_fileitemcapabilities.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2008 by George Goldberg <grundleborg@googlemail.com>    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "konq_fileitemcapabilities.h"
  22
  23 #include <kfileitem.h>
  24 #include <kprotocolmanager.h>
  25
  26 #include <QFileInfo>
  27
  28 class KonqFileItemCapabilitiesPrivate : public QSharedData
  29 {
  30 public:
  31     KonqFileItemCapabilitiesPrivate()
  32         : m_supportsReading(false),
  33           m_supportsDeleting(false),
  34           m_supportsWriting(false),
  35           m_supportsMoving(false),
  36           m_isLocal(true)
  37     { }
  38     bool m_supportsReading : 1;
  39     bool m_supportsDeleting : 1;
  40     bool m_supportsWriting : 1;
  41     bool m_supportsMoving : 1;
  42     bool m_isLocal : 1;
  43 };
  44
  45
  46 KonqFileItemCapabilities::KonqFileItemCapabilities()
  47     : d(new KonqFileItemCapabilitiesPrivate)
  48 {
  49 }
  50
  51 KonqFileItemCapabilities::KonqFileItemCapabilities(const KFileItemList& items)
  52     : d(new KonqFileItemCapabilitiesPrivate)
  53 {
  54     setItems(items);
  55 }
  56
  57 void KonqFileItemCapabilities::setItems(const KFileItemList& items)
  58 {
  59     const bool initialValue = !items.isEmpty();
  60     d->m_supportsReading = initialValue;
  61     d->m_supportsDeleting = initialValue;
  62     d->m_supportsWriting = initialValue;
  63     d->m_supportsMoving = initialValue;
  64     d->m_isLocal = true;
  65
  66     QFileInfo parentDirInfo;
  67     foreach (const KFileItem &item, items) {
  68         const KUrl url = item.url();
  69         d->m_isLocal = d->m_isLocal && url.isLocalFile();
  70         d->m_supportsReading  = d->m_supportsReading  && KProtocolManager::supportsReading(url);
  71         d->m_supportsDeleting = d->m_supportsDeleting && KProtocolManager::supportsDeleting(url);
  72         d->m_supportsWriting  = d->m_supportsWriting  && KProtocolManager::supportsWriting(url) && item.isWritable();
  73         d->m_supportsMoving   = d->m_supportsMoving   && KProtocolManager::supportsMoving(url);
  74
  75         // For local files we can do better: check if we have write permission in parent directory
  76         if (d->m_isLocal && (d->m_supportsDeleting || d->m_supportsMoving)) {
  77             const QString directory = url.directory();
  78             if (parentDirInfo.filePath() != directory) {
  79                 parentDirInfo.setFile(directory);
  80             }
  81             if (!parentDirInfo.isWritable()) {
  82                 d->m_supportsDeleting = false;
  83                 d->m_supportsMoving = false;
  84             }
  85         }
  86     }
  87 }
  88
  89 KonqFileItemCapabilities::KonqFileItemCapabilities(const KonqFileItemCapabilities& other)
  90     : d(other.d)
  91 { }
  92
  93
  94 KonqFileItemCapabilities& KonqFileItemCapabilities::operator=(const KonqFileItemCapabilities& other)
  95 {
  96     d = other.d;
  97     return *this;
  98 }
  99
 100 KonqFileItemCapabilities::~KonqFileItemCapabilities()
 101 {
 102 }
 103
 104 bool KonqFileItemCapabilities::supportsReading() const
 105 {
 106     return d->m_supportsReading;
 107 }
 108
 109 bool KonqFileItemCapabilities::supportsDeleting() const
 110 {
 111     return d->m_supportsDeleting;
 112 }
 113
 114 bool KonqFileItemCapabilities::supportsWriting() const
 115 {
 116     return d->m_supportsWriting;
 117 }
 118
 119 bool KonqFileItemCapabilities::supportsMoving() const
 120 {
 121     return d->m_supportsMoving;
 122 }
 123
 124 bool KonqFileItemCapabilities::isLocal() const
 125 {
 126     return d->m_isLocal;
 127 }