java鼠标拖放文件（Windows & Linux适用）

/*通过鼠标拖放文件到制定控件中，并判断是否为文件，如果是，则调用文件发送方法ChatFrame.SendFile(finalpath);
*/
class TextDropTargetListener implements DropTargetListener
{
CODER Coder = new CODER();
CHAT_FRAME ChatFrame;
/**
Constructs a listener.
@param aTextArea the text area in which to display the
properties of the dropped object.
*/
public TextDropTargetListener(CHAT_FRAME CF)
{
ChatFrame = CF;
}
public void dragEnter(DropTargetDragEvent event)
{
/*
int a = event.getDropAction();
if ((a & DnDConstants.ACTION_COPY) != 0)
textArea.append("ACTION_COPY\n");
if ((a & DnDConstants.ACTION_MOVE) != 0)
textArea.append("ACTION_MOVE\n");
if ((a & DnDConstants.ACTION_LINK) != 0)
textArea.append("ACTION_LINK\n");
if (!isDragAcceptable(event))
{
event.rejectDrag();
return;
}
*/
}
public void dragExit(DropTargetEvent event)
{
}
public void dragOver(DropTargetDragEvent event)
{
}
public void dropActionChanged(DropTargetDragEvent event)
{
if (!isDragAcceptable(event))
{
event.rejectDrag();
return;
}
}
public void drop(DropTargetDropEvent event)
{
if(ChatFrame.gbl_isSendFileShow==false){
ChatFrame.gbl_isSendFileShow=true;
if (!isDropAcceptable(event))
{
event.rejectDrop();
return;
}
event.acceptDrop(DnDConstants.ACTION_COPY);
Transferable transferable = event.getTransferable();
DataFlavor[] flavors = transferable.getTransferDataFlavors();
String path = "";
String finalpath = "";
for (int i = 0; i < flavors.length; i++)
{
DataFlavor d = flavors[i];
//textArea.append("MIME type=" + d.getMimeType() + "\n");
try