/**
* $RCSfile: ,v $
* $Revision: $
* $Date: $
*
* Copyright (C) 2004-2011 Jive Software. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.spark.ui;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.File;
import java.io.IOException;
import java.util.Collection;
import javax.swing.JComponent;
import javax.swing.TransferHandler;
import org.jivesoftware.spark.util.log.Log;
/**
* Handler for drag and dropping of files unto a ChatWindow.
*/
public class ChatRoomTransferHandler extends TransferHandler {
private static final long serialVersionUID = 6941570710627039031L;
private ChatRoom chatRoom;
private static final DataFlavor flavors[] = {DataFlavor.javaFileListFlavor, DataFlavor.stringFlavor};
public ChatRoomTransferHandler(ChatRoom chatRoom) {
this.chatRoom = chatRoom;
}
public int getSourceActions(JComponent c) {
return TransferHandler.COPY_OR_MOVE;
}
public boolean canImport(JComponent comp, DataFlavor flavor[]) {
for (int i = 0, n = flavor.length; i < n; i++) {
for (int j = 0, m = flavors.length; j < m; j++) {
if (flavor[i].equals(flavors[j])) {
return true;
}
}
}
return false;
}
protected void exportDone(JComponent c, Transferable data, int action) {
}
public Transferable createTransferable(JComponent comp) {
if (comp instanceof TranscriptWindow) {
return new TranscriptWindowTransferable((TranscriptWindow)comp);
}
return null;
}
public boolean importData(JComponent comp, Transferable t) {
if (t.isDataFlavorSupported(flavors[0])) {
try {
Object o = t.getTransferData(flavors[0]);
if (o instanceof Collection) {
Collection<File> files = (Collection<File>)o;
// Otherwise fire files dropped event.
chatRoom.fireFileDropListeners(files);
return true;
}
}
catch (UnsupportedFlavorException e) {
Log.error(e);
}
catch (IOException e) {
Log.error(e);
}
}
else if (t.isDataFlavorSupported(flavors[1])) {
try {
Object o = t.getTransferData(flavors[1]);
if (o instanceof String) {
// Otherwise fire files dropped event.
chatRoom.getChatInputEditor().insert((String)o);
return true;
}
}
catch (Exception e) {
Log.error(e);
}
}
return false;
}
public class TranscriptWindowTransferable implements Transferable {
private TranscriptWindow item;
public TranscriptWindowTransferable(TranscriptWindow item) {
this.item = item;
}
// Returns supported flavors
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[]{DataFlavor.stringFlavor};
}
// Returns true if flavor is supported
public boolean isDataFlavorSupported(DataFlavor flavor) {
return DataFlavor.stringFlavor.equals(flavor);
}
// Returns Selected Text
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
if (!DataFlavor.stringFlavor.equals(flavor)) {
throw new UnsupportedFlavorException(flavor);
}
return item.getSelectedText();
}
}
}