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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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    16 ** GNU Lesser General Public License Usage

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #include "qclipboard.h"

    43 

    44 #ifndef QT_NO_CLIPBOARD

    45 

    46 #include "qapplication.h"

    47 #include "qbitmap.h"

    48 #include "qdatetime.h"

    49 #include "qbuffer.h"

    50 #include "qwidget.h"

    51 #include "qevent.h"

    52 #include "private/qcore_symbian_p.h"

    53 #include <QtDebug>

    54 

    55 // Symbian's clipboard

    56 #include <baclipb.h>

    57 QT_BEGIN_NAMESPACE

    58 

    59 //###  Mime Type mapping to UIDs

    60 

    61 const TUid KQtCbDataStream = {0x2001B2DD};

    62 

    63 

    64 class QClipboardData

    65 {

    66 public:

    67     QClipboardData();

    68    ~QClipboardData();

    69 

    70     void setSource(QMimeData* s)

    71     {

    72         if (s == src)

    73             return;

    74         delete src;

    75         src = s;

    76     }

    77     QMimeData* source()

    78     { return src; }

    79     bool connected()

    80     { return connection; }

    81     void clear();

    82 

    83 private:

    84     QMimeData* src;

    85     bool connection;

    86 };

    87 

    88 QClipboardData::QClipboardData():src(0),connection(true)

    89 {

    90     clear();

    91 }

    92 

    93 QClipboardData::~QClipboardData()

    94 {

    95     connection = false;

    96     delete src;

    97 }

    98 

    99 void QClipboardData::clear()

   100 {

   101     QMimeData* newSrc = new QMimeData;

   102     delete src;

   103     src = newSrc;

   104 }

   105 

   106 static QClipboardData *internalCbData = 0;

   107 

   108 static void cleanupClipboardData()

   109 {

   110     delete internalCbData;

   111     internalCbData = 0;

   112 }

   113 

   114 static QClipboardData *clipboardData()

   115 {

   116     if (internalCbData == 0) {

   117         internalCbData = new QClipboardData;

   118         if (internalCbData)

   119         {

   120             if (!internalCbData->connected())

   121             {

   122                 delete internalCbData;

   123                 internalCbData = 0;

   124             }

   125             else

   126             {

   127                 qAddPostRoutine(cleanupClipboardData);

   128             }

   129         }

   130     }

   131     return internalCbData;

   132 }

   133 

   134 void writeToStreamLX(const QMimeData* aData, RWriteStream& aStream)

   135 {

   136     // This function both leaves and throws exceptions. There must be no destructor

   137     // dependencies between cleanup styles, and no cleanup stack dependencies on stacked objects.

   138     QStringList headers = aData->formats();

   139     aStream << TCardinality(headers.count());

   140     for (QStringList::const_iterator iter= headers.constBegin();iter != headers.constEnd();iter++)

   141     {

   142         HBufC* stringData = TPtrC(reinterpret_cast<const TUint16*>((*iter).utf16())).AllocLC();

   143         QByteArray ba = aData->data((*iter));

   144         qDebug() << "copy to clipboard mime: " << *iter << " data: " << ba;

   145         // mime type

   146         aStream << TCardinality(stringData->Size());

   147         aStream << *(stringData);

   148         // mime data

   149         aStream << TCardinality(ba.size());

   150         aStream.WriteL(reinterpret_cast<const uchar*>(ba.constData()),ba.size());

   151         CleanupStack::PopAndDestroy(stringData);

   152     }

   153 }

   154 

   155 void readFromStreamLX(QMimeData* aData,RReadStream& aStream)

   156 {

   157     // This function both leaves and throws exceptions. There must be no destructor

   158     // dependencies between cleanup styles, and no cleanup stack dependencies on stacked objects.

   159     TCardinality mimeTypeCount;

   160     aStream >> mimeTypeCount;

   161     for (int i = 0; i< mimeTypeCount;i++)

   162     {

   163         // mime type

   164         TCardinality mimeTypeSize;

   165         aStream >> mimeTypeSize;

   166         HBufC* mimeTypeBuf = HBufC::NewLC(aStream,mimeTypeSize);

   167         QString mimeType = QString::fromUtf16(mimeTypeBuf->Des().Ptr(),mimeTypeBuf->Length());

   168         CleanupStack::PopAndDestroy(mimeTypeBuf);

   169         // mime data

   170         TCardinality dataSize;

   171         aStream >> dataSize;

   172         QByteArray ba;

   173         ba.reserve(dataSize);

   174         aStream.ReadL(reinterpret_cast<uchar*>(ba.data_ptr()->data),dataSize);

   175         ba.data_ptr()->size = dataSize;

   176         qDebug() << "paste from clipboard mime: " << mimeType << " data: " << ba;

   177         aData->setData(mimeType,ba);

   178     }

   179 }

   180 

   181 

   182 /*****************************************************************************

   183   QClipboard member functions

   184  *****************************************************************************/

   185 

   186 void QClipboard::clear(Mode mode)

   187 {

   188     setText(QString(), mode);

   189 }

   190 const QMimeData* QClipboard::mimeData(Mode mode) const

   191 {

   192     if (mode != Clipboard) return 0;

   193     QClipboardData *d = clipboardData();

   194     if (d)

   195     {

   196         TRAPD(err,{

   197             RFs fs = qt_s60GetRFs();

   198             CClipboard* cb = CClipboard::NewForReadingLC(fs);

   199             Q_ASSERT(cb);

   200             RStoreReadStream stream;

   201             TStreamId stid = (cb->StreamDictionary()).At(KQtCbDataStream);

   202             stream.OpenLC(cb->Store(),stid);

   203             QT_TRYCATCH_LEAVING(readFromStreamLX(d->source(),stream));

   204             CleanupStack::PopAndDestroy(2,cb);

   205             return d->source();

   206         });

   207         if (err != KErrNone){

   208             qDebug()<< "clipboard is empty/err: " << err;

   209         }

   210 

   211     }

   212     return 0;

   213 }

   214 

   215 

   216 void QClipboard::setMimeData(QMimeData* src, Mode mode)

   217 {

   218     if (mode != Clipboard) return;

   219     QClipboardData *d = clipboardData();

   220     if (d)

   221     {

   222         TRAPD(err,{

   223             RFs fs = qt_s60GetRFs();

   224             CClipboard* cb = CClipboard::NewForWritingLC(fs);

   225             RStoreWriteStream  stream;

   226             TStreamId stid = stream.CreateLC(cb->Store());

   227             QT_TRYCATCH_LEAVING(writeToStreamLX(src,stream));

   228             d->setSource(src);

   229             stream.CommitL();

   230             (cb->StreamDictionary()).AssignL(KQtCbDataStream,stid);

   231             cb->CommitL();

   232             CleanupStack::PopAndDestroy(2,cb);

   233         });

   234         if (err != KErrNone){

   235             qDebug()<< "clipboard write err :" << err;

   236         }

   237     }

   238     emitChanged(QClipboard::Clipboard);

   239 }

   240 

   241 bool QClipboard::supportsMode(Mode mode) const

   242 {

   243     return (mode == Clipboard);

   244 }

   245 

   246 bool QClipboard::ownsMode(Mode mode) const

   247 {

   248     if (mode == Clipboard)

   249         qWarning("QClipboard::ownsClipboard: UNIMPLEMENTED!");

   250     return false;

   251 }

   252 

   253 bool QClipboard::event(QEvent * /* e */)

   254 {

   255     return true;

   256 }

   257 

   258 void QClipboard::connectNotify( const char * )

   259 {

   260 }

   261 

   262 void QClipboard::ownerDestroyed()

   263 {

   264 }

   265 QT_END_NAMESPACE

   266 #endif // QT_NO_CLIPBOARD