File indexing completed on 2024-05-12 05:09:47

 /***************************************************************************
     Copyright (C) 2007-2012 Robby Stephenson <robby@periapsis.org>
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   This program is free software; you can redistribute it and/or         *
  *   modify it under the terms of the GNU General Public License as        *
  *   published by the Free Software Foundation; either version 2 of        *
  *   the License or (at your option) version 3 or any later version        *
  *   accepted by the membership of KDE e.V. (or its successor approved     *
  *   by the membership of KDE e.V.), which shall act as a proxy            *
  *   defined in Section 14 of version 3 of the license.                    *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  *                                                                         *
  ***************************************************************************/
 
 #include "drophandler.h"
 #include "../mainwindow.h"
 #include "../utils/guiproxy.h"
 #include "../translators/bibteximporter.h"
 #include "../translators/risimporter.h"
 #include "../translators/ciwimporter.h"
 #include "../tellico_debug.h"
 
 #include <KIO/Job>
 #include <KJobWidgets>
 
 #include <QEvent>
 #include <QDragEnterEvent>
 #include <QDropEvent>
 #include <QMimeData>
 #include <QMimeDatabase>
 #include <QMimeType>
 
 using Tellico::DropHandler;
 
 DropHandler::DropHandler(QObject* parent_) : QObject(parent_) {
 }
 
 DropHandler::~DropHandler() {
 }
 
 // assume the object is always the main window, that's the
 // only object with this event filter
 bool DropHandler::eventFilter(QObject* obj_, QEvent* ev_) {
   Q_UNUSED(obj_);
   if(ev_->type() == QEvent::DragEnter) {
     return dragEnter(static_cast<QDragEnterEvent*>(ev_));
   } else if(ev_->type() == QEvent::Drop) {
     return drop(static_cast<QDropEvent*>(ev_));
   }
   return false;
 }
 
 bool DropHandler::dragEnter(QDragEnterEvent* event_) {
   bool accept = event_->mimeData()->hasUrls() || event_->mimeData()->hasText();
   if(accept) {
     event_->acceptProposedAction();
   }
   return accept;
 }
 
 bool DropHandler::drop(QDropEvent* event_) {
   QList<QUrl> urls = event_->mimeData()->urls();
 
   if(urls.isEmpty() && event_->mimeData()->hasText()) {
     QUrl u(event_->mimeData()->text());
     if(!u.isRelative() && (u.isLocalFile() || !u.host().isEmpty())) {
       urls << u;
     } else {
       return handleText(event_->mimeData()->text());
     }
   }
   return !urls.isEmpty() && handleURL(urls);
 }
 
 bool DropHandler::handleURL(const QList<QUrl>& urls_) {
   bool hasUnknown = false;
   QMimeDatabase db;
   QList<QUrl> tc, pdf, bib, ris, ciw, ebook;
   foreach(const QUrl& url, urls_) {
     QMimeType ptr;
     // findByURL doesn't work for http, so actually query
     // the url itself
     if(url.scheme() != QLatin1String("http")) {
       ptr = db.mimeTypeForUrl(url);
     } else {
       KIO::MimetypeJob* job = KIO::mimetype(url, KIO::HideProgressInfo);
       KJobWidgets::setWindow(job, GUI::Proxy::widget());
       job->exec();
       ptr = db.mimeTypeForName(job->mimetype());
     }
     if(ptr.inherits(QStringLiteral("application/x-tellico"))) {
       tc << url;
     } else if(ptr.inherits(QStringLiteral("application/pdf"))) {
       pdf << url;
     } else if(ptr.inherits(QStringLiteral("text/x-bibtex")) ||
               ptr.inherits(QStringLiteral("application/x-bibtex")) ||
               ptr.inherits(QStringLiteral("application/bibtex"))) {
       bib << url;
     } else if(ptr.inherits(QStringLiteral("application/x-research-info-systems"))) {
       ris << url;
     } else if(ptr.inherits(QStringLiteral("application/epub+zip")) ||
               ptr.inherits(QStringLiteral("application/x-mobipocket-ebook")) ||
               ptr.inherits(QStringLiteral("application/x-fictionbook+xml")) ||
               ptr.inherits(QStringLiteral("application/x-zip-compressed-fb2"))) {
       ebook << url;
     } else if(url.fileName().endsWith(QLatin1String(".bib"))) {
       bib << url;
     } else if(url.fileName().endsWith(QLatin1String(".ris"))) {
       ris << url;
     } else if(url.fileName().endsWith(QLatin1String(".ciw"))) {
       ciw << url;
     } else if(ptr.inherits(QStringLiteral("text/plain")) && Import::BibtexImporter::maybeBibtex(url)) {
       bib << url;
     } else if(ptr.inherits(QStringLiteral("text/plain")) && Import::RISImporter::maybeRIS(url)) {
       ris << url;
     } else if(ptr.inherits(QStringLiteral("text/plain")) && Import::CIWImporter::maybeCIW(url)) {
       ciw << url;
     } else {
       myDebug() << "unrecognized type: " << ptr.name() << " (" << url << ")";
       hasUnknown = true;
     }
   }
   MainWindow* mainWindow = ::qobject_cast<MainWindow*>(GUI::Proxy::widget());
   if(!mainWindow) {
     myDebug() << "no main window!";
     return !hasUnknown;
   }
   if(!tc.isEmpty()) {
     mainWindow->importFile(Import::TellicoXML, tc);
   }
   if(!pdf.isEmpty()) {
     mainWindow->importFile(Import::PDF, pdf);
   }
   if(!bib.isEmpty()) {
     mainWindow->importFile(Import::Bibtex, bib);
   }
   if(!ris.isEmpty()) {
     mainWindow->importFile(Import::RIS, ris);
   }
   if(!ciw.isEmpty()) {
     mainWindow->importFile(Import::CIW, ciw);
   }
   if(!ebook.isEmpty()) {
     mainWindow->importFile(Import::EBook, ebook);
   }
   // any unknown urls get passed
   return !hasUnknown;
 }
 
 bool DropHandler::handleText(const QString& text_) {
   MainWindow* mainWindow = ::qobject_cast<MainWindow*>(GUI::Proxy::widget());
   if(!mainWindow) {
     myDebug() << "no main window!";
     return false;
   }
 
   //TODO: handle TellicoXML, RIS, and CIW too
   if(Import::BibtexImporter::maybeBibtex(text_)) {
     mainWindow->importText(Import::Bibtex, text_);
   }
   return true;
 }