src/draganddrophelper.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2007 by David Faure <faure@kde.org>                     *                                                                      *                                                                         *
   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 "draganddrophelper.h"
  21 #include "dolphiniconsview.h"
  22 #include "dolphincontroller.h"
  23
  24 #include <kdirmodel.h>
  25 #include <kfileitem.h>
  26 #include <kicon.h>
  27 #include <klocale.h>
  28 #include <konq_operations.h>
  29
  30 #include <QAbstractItemView>
  31 #include <QAbstractProxyModel>
  32 #include <QtDBus>
  33 #include <QDrag>
  34
  35 class DragAndDropHelperSingleton
  36 {
  37 public:
  38     DragAndDropHelper instance;
  39 };
  40 K_GLOBAL_STATIC(DragAndDropHelperSingleton, s_dragAndDropHelper)
  41
  42 DragAndDropHelper& DragAndDropHelper::instance()
  43 {
  44     return s_dragAndDropHelper->instance;
  45 }
  46
  47 bool DragAndDropHelper::isMimeDataSupported(const QMimeData* mimeData) const
  48 {
  49     return mimeData->hasUrls() || mimeData->hasFormat("application/x-kde-dndextract");
  50 }
  51
  52 void DragAndDropHelper::startDrag(QAbstractItemView* itemView,
  53                                   Qt::DropActions supportedActions,
  54                                   DolphinController* controller)
  55 {
  56     QModelIndexList indexes = itemView->selectionModel()->selectedIndexes();
  57     if (indexes.count() > 0) {
  58         QMimeData *data = itemView->model()->mimeData(indexes);
  59         if (data == 0) {
  60             return;
  61         }
  62
  63         if (controller != 0) {
  64             controller->emitHideToolTip();
  65         }
  66
  67         QDrag* drag = new QDrag(itemView);
  68         QPixmap pixmap;
  69         if (indexes.count() == 1) {
  70             QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(itemView->model());
  71             KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
  72             const QModelIndex index = proxyModel->mapToSource(indexes.first());
  73
  74             const KFileItem item = dirModel->itemForIndex(index);
  75             pixmap = item.pixmap(KIconLoader::SizeMedium, KIconLoader::SizeMedium);
  76         } else {
  77             pixmap = KIcon("document-multiple").pixmap(KIconLoader::SizeMedium, KIconLoader::SizeMedium);
  78         }
  79         drag->setPixmap(pixmap);
  80         drag->setMimeData(data);
  81         drag->exec(supportedActions, Qt::IgnoreAction);
  82     }
  83 }
  84
  85 void DragAndDropHelper::dropUrls(const KFileItem& destItem,
  86                                  const KUrl& destPath,
  87                                  QDropEvent* event,
  88                                  QWidget* widget)
  89 {
  90     const bool dropToItem = !destItem.isNull() && (destItem.isDir() || destItem.isDesktopFile());
  91     const KUrl destination = dropToItem ? destItem.url() : destPath;
  92
  93     const QMimeData* mimeData = event->mimeData();
  94     if (mimeData->hasFormat("application/x-kde-dndextract")) {
  95         QString remoteDBusClient = mimeData->data("application/x-kde-dndextract");
  96         QDBusMessage message = QDBusMessage::createMethodCall(remoteDBusClient, "/DndExtract",
  97                                                               "org.kde.DndExtract", "extractFilesTo");
  98         message.setArguments(QVariantList() << destination.path());
  99         QDBusConnection::sessionBus().call(message);
 100     } else {
 101         const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 102         const KUrl sourceDir = KUrl(urls.first().directory());
 103         if (sourceDir == destination) {
 104             const QString msg = i18ncp("@info:status",
 105                                        "The dropped item is already inside the folder %2",
 106                                        "The dropped items are already inside the folder %2",
 107                                        urls.count(), destination.fileName());
 108             emit informationMessage(msg);
 109         } else if (dropToItem) {
 110             KonqOperations::doDrop(destItem, destination, event, widget);
 111         } else {
 112             KonqOperations::doDrop(KFileItem(), destination, event, widget);
 113         }
 114     }
 115 }
 116
 117 DragAndDropHelper::DragAndDropHelper()
 118 {
 119 }
 120
 121 #include "draganddrophelper.moc"