src/kitemviews/private/kfileitemclipboard.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "kfileitemclipboard.h"
   8
   9 #include <KUrlMimeData>
  10
  11 #include <QApplication>
  12 #include <QClipboard>
  13 #include <QMimeData>
  14
  15 class KFileItemClipboardSingleton
  16 {
  17 public:
  18     KFileItemClipboard instance;
  19 };
  20 Q_GLOBAL_STATIC(KFileItemClipboardSingleton, s_KFileItemClipboard)
  21
  22 KFileItemClipboard *KFileItemClipboard::instance()
  23 {
  24     return &s_KFileItemClipboard->instance;
  25 }
  26
  27 bool KFileItemClipboard::isCut(const QUrl &url) const
  28 {
  29     return m_cutItems.contains(url);
  30 }
  31
  32 QList<QUrl> KFileItemClipboard::cutItems() const
  33 {
  34     return m_cutItems.values();
  35 }
  36
  37 KFileItemClipboard::~KFileItemClipboard()
  38 {
  39 }
  40
  41 void KFileItemClipboard::updateCutItems()
  42 {
  43     const QMimeData *mimeData = QApplication::clipboard()->mimeData();
  44
  45     // mimeData can be 0 according to https://bugs.kde.org/show_bug.cgi?id=335053
  46     if (!mimeData) {
  47         m_cutItems.clear();
  48         Q_EMIT cutItemsChanged();
  49         return;
  50     }
  51
  52     const QByteArray data = mimeData->data(QStringLiteral("application/x-kde-cutselection"));
  53     const bool isCutSelection = (!data.isEmpty() && data.at(0) == QLatin1Char('1'));
  54     if (isCutSelection) {
  55         const auto urlsFromMimeData = KUrlMimeData::urlsFromMimeData(mimeData);
  56         m_cutItems = QSet<QUrl>(urlsFromMimeData.constBegin(), urlsFromMimeData.constEnd());
  57     } else {
  58         m_cutItems.clear();
  59     }
  60     Q_EMIT cutItemsChanged();
  61 }
  62
  63 KFileItemClipboard::KFileItemClipboard()
  64     : QObject(nullptr)
  65     , m_cutItems()
  66 {
  67     updateCutItems();
  68
  69     connect(QApplication::clipboard(), &QClipboard::dataChanged, this, &KFileItemClipboard::updateCutItems);
  70 }