https://bugs.documentfoundation.org/show_bug.cgi?id=106973
Bug ID: 106973
Summary: Dragging FileList out of LO fails
Product: LibreOffice
Version: unspecified
Hardware: All
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: sdk
Assignee: [email protected]
Reporter: [email protected]
Hello
I try to implement drag and drop via Java UNO from an LO control
(XTreeControl).
Dropping of Text/Files onto the control works fine.
However, dragging a "FileList" type
(application/x-openoffice-filelist;windows_formatname="FileList") from LO to
any
application accepting files (FileList) fails with a crash of the receiving
application e.g. Explorer/Notepad.
Dragging text from LO however works (sort of).
Due to little documentation I am not sure if I do this correctly.
Tried a number of different options returning raw byte[], many combinations of
Any etc.
Debugging the receiving application crashes here (win32 api):
DragQueryFile(hDropInfo, 0, szFileName, _MAX_PATH);
The call succeeds however, szFileName contains garbage.
I use the following test Java code to implement the drag source:
////////////////////////////////////////////////////////////////
private static final String MIME_FILE_LIST =
"application/x-openoffice-filelist;windows_formatname=\"FileList\"";
@Override
public void dragGestureRecognized(DragGestureEvent evt)
{
evt.DragSource.startDrag(evt, DNDConstants.ACTION_COPY,
0, 0, new XTransferable()
{
@Override
public Object getTransferData(DataFlavor
dataFlavor) throws UnsupportedFlavorException, IOException
{
String s = "C:\\Users\\xxx\\file.log";
if(dataFlavor.MimeType.equals(MIME_FILE_LIST))
{
return new Any(byte[].class, s.getBytes());
}
return null;
}
@Override
public DataFlavor[] getTransferDataFlavors()
{
return new DataFlavor[]{
new DataFlavor(MIME_FILE_LIST, "FileList",
new Type(byte[].class)),
};
}
@Override
public boolean isDataFlavorSupported(DataFlavor
dataFlavor)
{
return true;
}
////
}
////////////////////////////////////////////////////////////////////////////////////////////////
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