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copied!<p>This works for me. I am using it like this (scala):</p> <pre><code>def onDrop(files: List[java.io.File]): Unit = { ... } val lblDrop = new Label { peer.setTransferHandler(new FileDropHandler(onDrop)) border = EtchedBorder } class FileDropHandler(val onDrop: List[java.io.File] => Unit) extends javax.swing.TransferHandler { import javax.swing.JComponent import java.awt.datatransfer.{Transferable, DataFlavor} import java.net.URI import java.io.File val stdFileListFlavor = DataFlavor.javaFileListFlavor val nixFileListFlavor = new DataFlavor("text/uri-list;class=java.lang.String") override def canImport(comp: JComponent, flavors: Array[DataFlavor]): Boolean = flavors.exists(flavor => (flavor == stdFileListFlavor) || (flavor == nixFileListFlavor) ) override def importData(comp: JComponent, t: Transferable): Boolean = { val flavors = t.getTransferDataFlavors() val files = if (flavors.exists(_ == stdFileListFlavor)) { val data = t.getTransferData(stdFileListFlavor) importStdFileList( data ) } else if (flavors.exists(_ == nixFileListFlavor)) { val data = t.getTransferData(nixFileListFlavor) importNixFileList( data ) } else List() onDrop( files ) !files.isEmpty } private def importStdFileList(data: Any): List[File] = { data.asInstanceOf[List[File]] //XXX NOT TESTED } private def importNixFileList(data: Any): List[File] = { def clean(rawLine: String): Option[String] = { val line = rawLine.trim if (line.length == 0 || line == "#") None else Some(line) } def asURI(line: String): Option[URI] = { try { Some(new URI(line)) } catch { case e:Exception => println(e); None } } def asFile(uri: URI): Option[File] = { try { Some(new File(uri)) } catch { case e:Exception => println(e); None } } data.asInstanceOf[java.lang.String].split("\n") .toList flatMap clean flatMap asURI flatMap asFile } } </code></pre>

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