kio

paste.cpp

00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2000 David Faure <faure@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016    Boston, MA 02110-1301, USA.
00017 */
00018 
00019 #include "paste.h"
00020 #include "pastedialog.h"
00021 
00022 #include "kio/job.h"
00023 #include "kio/global.h"
00024 #include "kio/netaccess.h"
00025 #include "kio/observer.h"
00026 #include "kio/renamedlg.h"
00027 #include "kio/kprotocolmanager.h"
00028 
00029 #include <kurl.h>
00030 #include <kurldrag.h>
00031 #include <kdebug.h>
00032 #include <klocale.h>
00033 #include <kinputdialog.h>
00034 #include <kmessagebox.h>
00035 #include <kmimetype.h>
00036 #include <ktempfile.h>
00037 
00038 #include <qapplication.h>
00039 #include <qclipboard.h>
00040 #include <qdragobject.h>
00041 #include <qtextstream.h>
00042 #include <qvaluevector.h>
00043 
00044 static KURL getNewFileName( const KURL &u, const QString& text )
00045 {
00046   bool ok;
00047   QString dialogText( text );
00048   if ( dialogText.isEmpty() )
00049     dialogText = i18n( "Filename for clipboard content:" );
00050   QString file = KInputDialog::getText( QString::null, dialogText, QString::null, &ok );
00051   if ( !ok )
00052      return KURL();
00053 
00054   KURL myurl(u);
00055   myurl.addPath( file );
00056 
00057   if (KIO::NetAccess::exists(myurl, false, 0))
00058   {
00059       kdDebug(7007) << "Paste will overwrite file.  Prompting..." << endl;
00060       KIO::RenameDlg_Result res = KIO::R_OVERWRITE;
00061 
00062       QString newPath;
00063       // Ask confirmation about resuming previous transfer
00064       res = Observer::self()->open_RenameDlg(
00065                           0L, i18n("File Already Exists"),
00066                           u.pathOrURL(),
00067                           myurl.pathOrURL(),
00068                           (KIO::RenameDlg_Mode) (KIO::M_OVERWRITE | KIO::M_SINGLE), newPath);
00069 
00070       if ( res == KIO::R_RENAME )
00071       {
00072           myurl = newPath;
00073       }
00074       else if ( res == KIO::R_CANCEL )
00075       {
00076           return KURL();
00077       }
00078   }
00079 
00080   return myurl;
00081 }
00082 
00083 // The finaly step: write _data to tempfile and move it to neW_url
00084 static KIO::CopyJob* pasteDataAsyncTo( const KURL& new_url, const QByteArray& _data )
00085 {
00086      KTempFile tempFile;
00087      tempFile.dataStream()->writeRawBytes( _data.data(), _data.size() );
00088      tempFile.close();
00089 
00090      KURL orig_url;
00091      orig_url.setPath(tempFile.name());
00092 
00093      return KIO::move( orig_url, new_url );
00094 }
00095 
00096 #ifndef QT_NO_MIMECLIPBOARD
00097 static KIO::CopyJob* chooseAndPaste( const KURL& u, QMimeSource* data,
00098                                      const QValueVector<QCString>& formats,
00099                                      const QString& text,
00100                                      QWidget* widget,
00101                                      bool clipboard )
00102 {
00103     QStringList formatLabels;
00104     for ( uint i = 0; i < formats.size(); ++i ) {
00105         const QCString& fmt = formats[i];
00106         KMimeType::Ptr mime = KMimeType::mimeType( fmt );
00107         if ( mime != KMimeType::defaultMimeTypePtr() )
00108             formatLabels.append( i18n( "%1 (%2)" ).arg( mime->comment() ).arg( fmt ) );
00109         else
00110             formatLabels.append( fmt );
00111     }
00112 
00113     QString dialogText( text );
00114     if ( dialogText.isEmpty() )
00115         dialogText = i18n( "Filename for clipboard content:" );
00116     KIO::PasteDialog dlg( QString::null, dialogText, QString::null, formatLabels, widget, clipboard );
00117 
00118     if ( dlg.exec() != KDialogBase::Accepted )
00119         return 0;
00120 
00121     if ( clipboard && dlg.clipboardChanged() ) {
00122         KMessageBox::sorry( widget,
00123                             i18n( "The clipboard has changed since you used 'paste': "
00124                                   "the chosen data format is no longer applicable. "
00125                                   "Please copy again what you wanted to paste." ) );
00126         return 0;
00127     }
00128 
00129     const QString result = dlg.lineEditText();
00130     const QCString chosenFormat = formats[ dlg.comboItem() ];
00131 
00132     kdDebug() << " result=" << result << " chosenFormat=" << chosenFormat << endl;
00133     KURL new_url( u );
00134     new_url.addPath( result );
00135     // if "data" came from QClipboard, then it was deleted already - by a nice 0-seconds timer
00136     // In that case, get it again. Let's hope the user didn't copy something else meanwhile :/
00137     if ( clipboard ) {
00138         data = QApplication::clipboard()->data();
00139     }
00140     const QByteArray ba = data->encodedData( chosenFormat );
00141     return pasteDataAsyncTo( new_url, ba );
00142 }
00143 #endif
00144 
00145 // KDE4: remove
00146 KIO_EXPORT bool KIO::isClipboardEmpty()
00147 {
00148 #ifndef QT_NO_MIMECLIPBOARD
00149   QMimeSource *data = QApplication::clipboard()->data();
00150   if ( data->provides( "text/uri-list" ) && data->encodedData( "text/uri-list" ).size() > 0 )
00151     return false;
00152 #else
00153   // Happens with some versions of Qt Embedded... :/
00154   // Guess.
00155   QString data = QApplication::clipboard()->text();
00156   if(data.contains("://"))
00157       return false;
00158 #endif
00159   return true;
00160 }
00161 
00162 #ifndef QT_NO_MIMECLIPBOARD
00163 // The main method for dropping
00164 KIO::CopyJob* KIO::pasteMimeSource( QMimeSource* data, const KURL& dest_url,
00165                                     const QString& dialogText, QWidget* widget, bool clipboard )
00166 {
00167   QByteArray ba;
00168 
00169   // Now check for plain text
00170   // We don't want to display a mimetype choice for a QTextDrag, those mimetypes look ugly.
00171   QString text;
00172   if ( QTextDrag::canDecode( data ) && QTextDrag::decode( data, text ) )
00173   {
00174       QTextStream txtStream( ba, IO_WriteOnly );
00175       txtStream << text;
00176   }
00177   else
00178   {
00179       QValueVector<QCString> formats;
00180       const char* fmt;
00181       for ( int i = 0; ( fmt = data->format( i ) ); ++i ) {
00182           if ( qstrcmp( fmt, "application/x-qiconlist" ) == 0 ) // see QIconDrag
00183               continue;
00184           if ( qstrcmp( fmt, "application/x-kde-cutselection" ) == 0 ) // see KonqDrag
00185               continue;
00186           if ( strchr( fmt, '/' ) == 0 ) // e.g. TARGETS, MULTIPLE, TIMESTAMP
00187               continue;
00188           formats.append( fmt );
00189       }
00190 
00191       if ( formats.size() == 0 )
00192           return 0;
00193 
00194       if ( formats.size() > 1 ) {
00195           return chooseAndPaste( dest_url, data, formats, dialogText, widget, clipboard );
00196       }
00197       ba = data->encodedData( formats.first() );
00198   }
00199   if ( ba.size() == 0 )
00200   {
00201     KMessageBox::sorry(0, i18n("The clipboard is empty"));
00202     return 0;
00203   }
00204 
00205   return pasteDataAsync( dest_url, ba, dialogText );
00206 }
00207 #endif
00208 
00209 // The main method for pasting
00210 KIO_EXPORT KIO::Job *KIO::pasteClipboard( const KURL& dest_url, bool move )
00211 {
00212   if ( !dest_url.isValid() ) {
00213     KMessageBox::error( 0L, i18n( "Malformed URL\n%1" ).arg( dest_url.url() ) );
00214     return 0;
00215   }
00216 
00217 #ifndef QT_NO_MIMECLIPBOARD
00218   QMimeSource *data = QApplication::clipboard()->data();
00219 
00220   // First check for URLs.
00221   KURL::List urls;
00222   if ( KURLDrag::canDecode( data ) && KURLDrag::decode( data, urls ) ) {
00223     if ( urls.count() == 0 ) {
00224       KMessageBox::error( 0L, i18n("The clipboard is empty"));
00225       return 0;
00226     }
00227 
00228     KIO::Job *res = 0;
00229     if ( move )
00230       res = KIO::move( urls, dest_url );
00231     else
00232       res = KIO::copy( urls, dest_url );
00233 
00234     // If moving, erase the clipboard contents, the original files don't exist anymore
00235     if ( move )
00236       QApplication::clipboard()->clear();
00237     return res;
00238   }
00239   return pasteMimeSource( data, dest_url, QString::null, 0 /*TODO parent widget*/, true /*clipboard*/ );
00240 #else
00241   QByteArray ba;
00242   QTextStream txtStream( ba, IO_WriteOnly );
00243   QStringList data = QStringList::split("\n", QApplication::clipboard()->text());
00244   KURL::List urls;
00245   KURLDrag::decode(data, urls);
00246   QStringList::Iterator end(data.end());
00247   for(QStringList::Iterator it=data.begin(); it!=end; ++it)
00248       txtStream << *it;
00249   if ( ba.size() == 0 )
00250   {
00251     KMessageBox::sorry(0, i18n("The clipboard is empty"));
00252     return 0;
00253   }
00254   return pasteDataAsync( dest_url, ba );
00255 #endif
00256 }
00257 
00258 
00259 KIO_EXPORT void KIO::pasteData( const KURL& u, const QByteArray& _data )
00260 {
00261     KURL new_url = getNewFileName( u, QString::null );
00262     // We could use KIO::put here, but that would require a class
00263     // for the slotData call. With NetAccess, we can do a synchronous call.
00264 
00265     if (new_url.isEmpty())
00266        return;
00267 
00268     KTempFile tempFile;
00269     tempFile.setAutoDelete( true );
00270     tempFile.dataStream()->writeRawBytes( _data.data(), _data.size() );
00271     tempFile.close();
00272 
00273     (void) KIO::NetAccess::upload( tempFile.name(), new_url, 0 );
00274 }
00275 
00276 KIO_EXPORT KIO::CopyJob* KIO::pasteDataAsync( const KURL& u, const QByteArray& _data )
00277 {
00278     return pasteDataAsync( u, _data, QString::null );
00279 }
00280 
00281 KIO_EXPORT KIO::CopyJob* KIO::pasteDataAsync( const KURL& u, const QByteArray& _data, const QString& text )
00282 {
00283     KURL new_url = getNewFileName( u, text );
00284 
00285     if (new_url.isEmpty())
00286        return 0;
00287 
00288     return pasteDataAsyncTo( new_url, _data );
00289 }
00290 
00291 KIO_EXPORT QString KIO::pasteActionText()
00292 {
00293     QMimeSource *data = QApplication::clipboard()->data();
00294     KURL::List urls;
00295     if ( KURLDrag::canDecode( data ) && KURLDrag::decode( data, urls ) ) {
00296         if ( urls.isEmpty() )
00297             return QString::null; // nothing to paste
00298         else if ( urls.first().isLocalFile() )
00299             return i18n( "&Paste File", "&Paste %n Files", urls.count() );
00300         else
00301             return i18n( "&Paste URL", "&Paste %n URLs", urls.count() );
00302     } else if ( data->format(0) != 0 ) {
00303         return i18n( "&Paste Clipboard Contents" );
00304     } else {
00305         return QString::null;
00306     }
00307 }
00308
kio

paste.cpp

kio

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