src/views/draganddrophelper.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2011 by Peter Penz <peter.penz19@gmail.com>        *
   3  *   Copyright (C) 2007 by David Faure <faure@kde.org>                     *
   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 "draganddrophelper.h"
  22
  23 #include <QUrl>
  24 #include <QDBusMessage>
  25 #include <QDBusConnection>
  26 #include <QDropEvent>
  27 #include <QMimeData>
  28
  29 #include <KIO/DropJob>
  30 #include <KJobWidgets>
  31
  32 QHash<QUrl, bool> DragAndDropHelper::m_urlListMatchesUrlCache;
  33
  34 bool DragAndDropHelper::urlListMatchesUrl(const QList<QUrl>& urls, const QUrl& destUrl)
  35 {
  36     auto iteratorResult = m_urlListMatchesUrlCache.constFind(destUrl);
  37     if (iteratorResult != m_urlListMatchesUrlCache.constEnd()) {
  38         return *iteratorResult;
  39     }
  40
  41     const bool destUrlMatches =
  42         std::find_if(urls.constBegin(), urls.constEnd(), [destUrl](const QUrl& url) {
  43             return url.matches(destUrl, QUrl::StripTrailingSlash);
  44         }) != urls.constEnd();
  45
  46     return *m_urlListMatchesUrlCache.insert(destUrl, destUrlMatches);
  47 }
  48
  49 KIO::DropJob* DragAndDropHelper::dropUrls(const QUrl& destUrl, QDropEvent* event, QWidget* window)
  50 {
  51     const QMimeData* mimeData = event->mimeData();
  52     if (mimeData->hasFormat(QStringLiteral("application/x-kde-ark-dndextract-service")) &&
  53         mimeData->hasFormat(QStringLiteral("application/x-kde-ark-dndextract-path"))) {
  54         const QString remoteDBusClient = mimeData->data(QStringLiteral("application/x-kde-ark-dndextract-service"));
  55         const QString remoteDBusPath = mimeData->data(QStringLiteral("application/x-kde-ark-dndextract-path"));
  56
  57         QDBusMessage message = QDBusMessage::createMethodCall(remoteDBusClient, remoteDBusPath,
  58                                                               QStringLiteral("org.kde.ark.DndExtract"), QStringLiteral("extractSelectedFilesTo"));
  59         message.setArguments({destUrl.toDisplayString(QUrl::PreferLocalFile)});
  60         QDBusConnection::sessionBus().call(message);
  61     } else {
  62         if (urlListMatchesUrl(event->mimeData()->urls(), destUrl)) {
  63             return nullptr;
  64         }
  65
  66         // Drop into a directory or a desktop-file
  67         KIO::DropJob *job = KIO::drop(event, destUrl);
  68         KJobWidgets::setWindow(job, window);
  69         return job;
  70     }
  71
  72     return nullptr;
  73 }
  74
  75 void DragAndDropHelper::clearUrlListMatchesUrlCache()
  76 {
  77     DragAndDropHelper::m_urlListMatchesUrlCache.clear();
  78 }
  79