52 lines
1.4 KiB
Java
52 lines
1.4 KiB
Java
package dev.kske.chess.ui;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.UnsupportedFlavorException;
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import java.awt.dnd.DnDConstants;
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import java.awt.dnd.DropTargetAdapter;
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import java.awt.dnd.DropTargetDropEvent;
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import java.io.File;
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import java.io.IOException;
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import java.util.List;
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/**
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* Enables drag and drop support of {@code FEN} and {@code PGN} files for the
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* {@link MainWindow}.<br>
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* <br>
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* Project: <strong>Chess</strong><br>
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* File: <strong>GameDropTarget.java</strong><br>
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* Created: <strong>13 Aug 2019</strong><br>
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*
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* @since Chess v0.3-alpha
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* @author Kai S. K. Engelbart
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*/
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public class GameDropTarget extends DropTargetAdapter {
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private MainWindow mainWindow;
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/**
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* Creates an instance of {@link GameDropTarget}.
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*
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* @param mainWindow the {@link MainWindow} onto which {@code FEN} and
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* {@code PGN} files can be dropped
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*/
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public GameDropTarget(MainWindow mainWindow) {
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this.mainWindow = mainWindow;
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}
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@SuppressWarnings("unchecked")
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@Override
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public void drop(DropTargetDropEvent evt) {
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try {
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evt.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
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mainWindow.loadFiles(
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(List<File>) evt.getTransferable()
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.getTransferData(DataFlavor.javaFileListFlavor)
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);
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} catch (UnsupportedFlavorException | IOException ex) {
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ex.printStackTrace();
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evt.rejectDrop();
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}
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}
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}
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