- * To use this class, construct a new FileDrop by passing - * it the target component and a Listener to receive notification - * when file(s) have been dropped. Here is an example: - *
- *
- * JPanel myPanel = new JPanel();
- * new FileDrop( myPanel, new FileDrop.Listener()
- * { public void filesDropped( java.io.File[] files )
- * {
- * // handle file drop
- * ...
- * } // end filesDropped
- * }); // end FileDrop.Listener
- *
- *
- * You can specify the border that will appear when files are being dragged by - * calling the constructor with a {@link javax.swing.border.Border}. Only - * JComponents will show any indication with a border. - *
- * You can turn on some debugging features by passing a PrintStream - * object (such as System.out) into the full constructor. A null - * value will result in no extra debugging information being output. - * - *
I'm releasing this code into the Public Domain. Enjoy. - *
- *Original author: Robert Harder, rharder@usa.net
- *2007-09-12 Nathan Blomquist -- Linux (KDE/Gnome) support added.
- * - * @author Robert Harder - * @author rharder@users.sf.net - * @version 1.0.1 - * @since 1231 - */ -public class FileDrop { - - // CHECKSTYLE.ON: HideUtilityClassConstructor - - private Border normalBorder; - private DropTargetListener dropListener; - - // Default border color - private static Color defaultBorderColor = new Color(0f, 0f, 1f, 0.25f); - - /** - * Constructor for JOSM file drop - * @param c The drop target - */ - public FileDrop(final Component c) { - this( - c, // Drop target - BorderFactory.createMatteBorder(2, 2, 2, 2, defaultBorderColor), // Drag border - true, // Recursive - files -> { - // start asynchronous loading of files - OpenFileAction.OpenFileTask task = new OpenFileAction.OpenFileTask(Arrays.asList(files), null); - task.setRecordHistory(true); - Main.worker.submit(task); - } - ); - } - - /** - * Full constructor with a specified border and debugging optionally turned on. - * With Debugging turned on, more status messages will be displayed to - * out. A common way to use this constructor is with - * System.out or System.err. A null value for - * the parameter out will result in no debugging output. - * - * @param c Component on which files will be dropped. - * @param dragBorder Border to use on JComponent when dragging occurs. - * @param recursive Recursively set children as drop targets. - * @param listener Listens for filesDropped. - */ - public FileDrop( - final Component c, - final Border dragBorder, - final boolean recursive, - final Listener listener) { - - // Make a drop listener - dropListener = new DropListener(listener, dragBorder, c); - - // Make the component (and possibly children) drop targets - makeDropTarget(c, recursive); - } - - // BEGIN 2007-09-12 Nathan Blomquist -- Linux (KDE/Gnome) support added. - private static final String ZERO_CHAR_STRING = Character.toString((char) 0); - - private static File[] createFileArray(BufferedReader bReader) { - try { - List
- * public class MyClass implements FileDrop.Listener
- * ...
- * public void filesDropped( java.io.File[] files )
- * {
- * ...
- * } // end filesDropped
- * ...
- *
- */
- @FunctionalInterface
- public interface Listener {
-
- /**
- * This method is called when files have been successfully dropped.
- *
- * @param files An array of Files that were dropped.
- */
- void filesDropped(File[] files);
- }
-
- /* ******** I N N E R C L A S S ******** */
-
- /**
- * At last an easy way to encapsulate your custom objects for dragging and dropping
- * in your Java programs!
- * When you need to create a {@link java.awt.datatransfer.Transferable} object,
- * use this class to wrap your object.
- * For example:
- *
- * ...
- * MyCoolClass myObj = new MyCoolClass();
- * Transferable xfer = new TransferableObject( myObj );
- * ...
- *
- * ...
- * final MyCoolClass myObj = new MyCoolClass();
- *
- * TransferableObject.Fetcher fetcher = new TransferableObject.Fetcher()
- * { public Object getObject() { return myObj; }
- * }; // end fetcher
- *
- * Transferable xfer = new TransferableObject( fetcher );
- * ...
- * I'm releasing this code into the Public Domain. Enjoy.
- * - * @author Robert Harder - * @author rob@iharder.net - * @version 1.2 - */ - public static class TransferableObject implements Transferable { - - /** - * The MIME type for {@link #DATA_FLAVOR} is - * application/x-net.iharder.dnd.TransferableObject. - */ - public static final String MIME_TYPE = "application/x-net.iharder.dnd.TransferableObject"; - - /** - * The default {@link java.awt.datatransfer.DataFlavor} for - * {@link TransferableObject} has the representation class - * net.iharder.dnd.TransferableObject.class - * and the MIME type - * application/x-net.iharder.dnd.TransferableObject. - */ - public static final DataFlavor DATA_FLAVOR = - new DataFlavor(TransferableObject.class, MIME_TYPE); - - private Fetcher fetcher; - private Object data; - - private DataFlavor customFlavor; - - /** - * Creates a new {@link TransferableObject} that wraps data. - * Along with the {@link #DATA_FLAVOR} associated with this class, - * this creates a custom data flavor with a representation class - * determined fromdata.getClass() and the MIME type
- * application/x-net.iharder.dnd.TransferableObject.
- *
- * @param data The data to transfer
- */
- public TransferableObject(Object data) {
- this.data = data;
- this.customFlavor = new DataFlavor(data.getClass(), MIME_TYPE);
- }
-
- /**
- * Creates a new {@link TransferableObject} that will return the
- * object that is returned by fetcher.
- * No custom data flavor is set other than the default
- * {@link #DATA_FLAVOR}.
- *
- * @param fetcher The {@link Fetcher} that will return the data object
- * @see Fetcher
- */
- public TransferableObject(Fetcher fetcher) {
- this.fetcher = fetcher;
- }
-
- /**
- * Creates a new {@link TransferableObject} that will return the
- * object that is returned by fetcher.
- * Along with the {@link #DATA_FLAVOR} associated with this class,
- * this creates a custom data flavor with a representation class dataClass
- * and the MIME type
- * application/x-net.iharder.dnd.TransferableObject.
- *
- * @param dataClass The {@link java.lang.Class} to use in the custom data flavor
- * @param fetcher The {@link Fetcher} that will return the data object
- * @see Fetcher
- */
- public TransferableObject(Class dataClass, Fetcher fetcher) {
- this.fetcher = fetcher;
- this.customFlavor = new DataFlavor(dataClass, MIME_TYPE);
- }
-
- /**
- * Returns the custom {@link java.awt.datatransfer.DataFlavor} associated
- * with the encapsulated object or null if the {@link Fetcher}
- * constructor was used without passing a {@link java.lang.Class}.
- *
- * @return The custom data flavor for the encapsulated object
- */
- public DataFlavor getCustomDataFlavor() {
- return customFlavor;
- }
-
- /* ******** T R A N S F E R A B L E M E T H O D S ******** */
-
- /**
- * Returns a two- or three-element array containing first
- * the custom data flavor, if one was created in the constructors,
- * second the default {@link #DATA_FLAVOR} associated with
- * {@link TransferableObject}, and third the
- * {@link java.awt.datatransfer.DataFlavor#stringFlavor}.
- *
- * @return An array of supported data flavors
- */
- @Override
- public DataFlavor[] getTransferDataFlavors() {
- if (customFlavor != null)
- return new DataFlavor[] {
- customFlavor,
- DATA_FLAVOR,
- DataFlavor.stringFlavor};
- else
- return new DataFlavor[] {
- DATA_FLAVOR,
- DataFlavor.stringFlavor};
- }
-
- /**
- * Returns the data encapsulated in this {@link TransferableObject}.
- * If the {@link Fetcher} constructor was used, then this is when
- * the {@link Fetcher#getObject getObject()} method will be called.
- * If the requested data flavor is not supported, then the
- * {@link Fetcher#getObject getObject()} method will not be called.
- *
- * @param flavor The data flavor for the data to return
- * @return The dropped data
- */
- @Override
- public Object getTransferData(DataFlavor flavor)
- throws UnsupportedFlavorException, IOException {
- // Native object
- if (flavor.equals(DATA_FLAVOR))
- return fetcher == null ? data : fetcher.getObject();
-
- // String
- if (flavor.equals(DataFlavor.stringFlavor))
- return fetcher == null ? data.toString() : fetcher.getObject().toString();
-
- // We can't do anything else
- throw new UnsupportedFlavorException(flavor);
- }
-
- /**
- * Returns true if flavor is one of the supported
- * flavors. Flavors are supported using the equals(...) method.
- *
- * @param flavor The data flavor to check
- * @return Whether or not the flavor is supported
- */
- @Override
- public boolean isDataFlavorSupported(DataFlavor flavor) {
- // Native object
- if (flavor.equals(DATA_FLAVOR))
- return true;
-
- // String
- if (flavor.equals(DataFlavor.stringFlavor))
- return true;
-
- // We can't do anything else
- return false;
- }
-
- /* ******** I N N E R I N T E R F A C E F E T C H E R ******** */
-
- /**
- * Instead of passing your data directly to the {@link TransferableObject}
- * constructor, you may want to know exactly when your data was received
- * in case you need to remove it from its source (or do anyting else to it).
- * When the {@link #getTransferData getTransferData(...)} method is called
- * on the {@link TransferableObject}, the {@link Fetcher}'s
- * {@link #getObject getObject()} method will be called.
- *
- * @author Robert Harder
- */
- @FunctionalInterface
- public interface Fetcher {
- /**
- * Return the object being encapsulated in the
- * {@link TransferableObject}.
- *
- * @return The dropped object
- */
- Object getObject();
- }
- }
-}
Index: trunk/src/org/openstreetmap/josm/gui/GettingStarted.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/GettingStarted.java (revision 10619)
+++ trunk/src/org/openstreetmap/josm/gui/GettingStarted.java (revision 10620)
@@ -6,5 +6,4 @@
import java.awt.BorderLayout;
import java.awt.EventQueue;
-import java.awt.GraphicsEnvironment;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
@@ -25,4 +24,5 @@
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.Version;
+import org.openstreetmap.josm.gui.datatransfer.FileTransferHandler;
import org.openstreetmap.josm.gui.preferences.server.ProxyPreference;
import org.openstreetmap.josm.gui.preferences.server.ProxyPreferenceListener;
@@ -125,4 +125,5 @@
// clear the build-in command ctrl+shift+O, because it is used as shortcut in JOSM
lg.getInputMap(JComponent.WHEN_FOCUSED).put(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.SHIFT_MASK | InputEvent.CTRL_MASK), "none");
+ lg.setTransferHandler(null);
JScrollPane scroller = new JScrollPane(lg);
@@ -132,7 +133,5 @@
getMOTD();
- if (!GraphicsEnvironment.isHeadless()) {
- new FileDrop(scroller);
- }
+ setTransferHandler(new FileTransferHandler());
}
Index: trunk/src/org/openstreetmap/josm/gui/datatransfer/FileTransferHandler.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/datatransfer/FileTransferHandler.java (revision 10620)
+++ trunk/src/org/openstreetmap/josm/gui/datatransfer/FileTransferHandler.java (revision 10620)
@@ -0,0 +1,44 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.gui.datatransfer;
+
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.io.IOException;
+
+import javax.swing.JComponent;
+import javax.swing.TransferHandler;
+
+import org.openstreetmap.josm.Main;
+import org.openstreetmap.josm.gui.datatransfer.importers.FilePaster;
+
+/**
+ * This transfer handler allows to drop files to open them.
+ *
+ * @author Michael Zangl
+ * @since 10620
+ */
+public class FileTransferHandler extends TransferHandler {
+
+ private static final FilePaster filePaster = new FilePaster();
+
+ @Override
+ public int getSourceActions(JComponent c) {
+ return COPY;
+ }
+
+ @Override
+ public boolean canImport(TransferSupport support) {
+ return filePaster.supports(support);
+ }
+
+ @Override
+ public boolean importData(TransferSupport support) {
+ try {
+ if (filePaster.supports(support)) {
+ return filePaster.importData(support, null, null);
+ }
+ } catch (UnsupportedFlavorException | IOException e) {
+ Main.warn(e, "Error while importing file.");
+ }
+ return super.importData(support);
+ }
+}