Symbian: don't merge native clipboard, overwrite.

If copying text from a Qt application that has both plaintext and
formatted text representations, then S60 applications only see the
plaintext.
If copying data from an S60 application, the Qt application can see
the plaintext. However as this was merged with the existing clipboard
contents in Qt, the formatted text was unchanged.
Now, we clear the internal clipboard QMimeData before writing the
contents of the symbian clipboard to it. This ensures stale data
from a previous copy is not left behind.

Task-Number: ou1cimx1#927246
Reviewed-By: mread

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gui/kernel/qclipboard_s60.cpp b/src/gui/kernel/qclipboard_s60.cpp
index f5314bd..dc812fb 100644
--- a/src/gui/kernel/qclipboard_s60.cpp
+++ b/src/gui/kernel/qclipboard_s60.cpp
@@ -187,6 +187,7 @@ void readSymbianStoreLX(QMimeData* aData, CClipboard* clipboard)
     QString string = qt_TDesC2QString(buf);
     CleanupStack::PopAndDestroy(text);
 
+    aData->clear();
     aData->setText(string);
 }
 
@@ -196,6 +197,8 @@ void readFromStreamLX(QMimeData* aData,RReadStream& aStream)
     // dependencies between cleanup styles, and no cleanup stack dependencies on stacked objects.
     TCardinality mimeTypeCount;
     aStream >> mimeTypeCount;
+    if (mimeTypeCount > 0)
+        aData->clear();
     for (int i = 0; i< mimeTypeCount;i++)
     {
         // mime type