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 <KUrlMimeData>
  23
  24 #include <QApplication>
  25 #include <QClipboard>
  26 #include <QMimeData>
  27
  28 class KFileItemClipboardSingleton
  29 {
  30 public:
  31     KFileItemClipboard instance;
  32 };
  33 Q_GLOBAL_STATIC(KFileItemClipboardSingleton, s_KFileItemClipboard)
  34
  35
  36
  37 KFileItemClipboard* KFileItemClipboard::instance()
  38 {
  39     return &s_KFileItemClipboard->instance;
  40 }
  41
  42 bool KFileItemClipboard::isCut(const QUrl& url) const
  43 {
  44     return m_cutItems.contains(url);
  45 }
  46
  47 QList<QUrl> KFileItemClipboard::cutItems() const
  48 {
  49     return m_cutItems.values();
  50 }
  51
  52 KFileItemClipboard::~KFileItemClipboard()
  53 {
  54 }
  55
  56 void KFileItemClipboard::updateCutItems()
  57 {
  58     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
  59
  60     // mimeData can be 0 according to https://bugs.kde.org/show_bug.cgi?id=335053
  61     if (!mimeData) {
  62         m_cutItems.clear();
  63         emit cutItemsChanged();
  64         return;
  65     }
  66
  67     const QByteArray data = mimeData->data(QStringLiteral("application/x-kde-cutselection"));
  68     const bool isCutSelection = (!data.isEmpty() && data.at(0) == QLatin1Char('1'));
  69     if (isCutSelection) {
  70         m_cutItems = KUrlMimeData::urlsFromMimeData(mimeData).toSet();
  71     } else {
  72         m_cutItems.clear();
  73     }
  74     emit cutItemsChanged();
  75 }
  76
  77 KFileItemClipboard::KFileItemClipboard() :
  78     QObject(nullptr),
  79     m_cutItems()
  80 {
  81     updateCutItems();
  82
  83     connect(QApplication::clipboard(), &QClipboard::dataChanged,
  84             this, &KFileItemClipboard::updateCutItems);
  85 }