src/kitemviews/private/kfileitemclipboard.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.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 "kfileitemclipboard.h"
  21
  22 #include <QApplication>
  23 #include <QClipboard>
  24 #include <QMimeData>
  25 #include <KUrlMimeData>
  26
  27 class KFileItemClipboardSingleton
  28 {
  29 public:
  30     KFileItemClipboard instance;
  31 };
  32 Q_GLOBAL_STATIC(KFileItemClipboardSingleton, s_KFileItemClipboard)
  33
  34
  35
  36 KFileItemClipboard* KFileItemClipboard::instance()
  37 {
  38     return &s_KFileItemClipboard->instance;
  39 }
  40
  41 bool KFileItemClipboard::isCut(const QUrl& url) const
  42 {
  43     return m_cutItems.contains(url);
  44 }
  45
  46 QList<QUrl> KFileItemClipboard::cutItems() const
  47 {
  48     return m_cutItems.toList();
  49 }
  50
  51 KFileItemClipboard::~KFileItemClipboard()
  52 {
  53 }
  54
  55 void KFileItemClipboard::updateCutItems()
  56 {
  57     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
  58
  59     // mimeData can be 0 according to https://bugs.kde.org/show_bug.cgi?id=335053
  60     if (!mimeData) {
  61         m_cutItems.clear();
  62         emit cutItemsChanged();
  63         return;
  64     }
  65
  66     const QByteArray data = mimeData->data(QStringLiteral("application/x-kde-cutselection"));
  67     const bool isCutSelection = (!data.isEmpty() && data.at(0) == QLatin1Char('1'));
  68     if (isCutSelection) {
  69         m_cutItems = KUrlMimeData::urlsFromMimeData(mimeData).toSet();
  70     } else {
  71         m_cutItems.clear();
  72     }
  73     emit cutItemsChanged();
  74 }
  75
  76 KFileItemClipboard::KFileItemClipboard() :
  77     QObject(0),
  78     m_cutItems()
  79 {
  80     updateCutItems();
  81
  82     connect(QApplication::clipboard(), &QClipboard::dataChanged,
  83             this, &KFileItemClipboard::updateCutItems);
  84 }