UADNDListener.java :  » Messenger » ip-messenger » com » ymd » gui » dnd » listner » Java Open Source

/**
 * 
 */
package com.ymd.gui.dnd.listner;

import java.awt.BorderLayout;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTargetAdapter;
import java.awt.dnd.DropTargetDropEvent;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;

import com.ymd.gui.ChatGui;
import com.ymd.log.IPMLogger;
import com.ymd.main.IPMessenger;
import com.ymd.net.ft.FileClient;

/**
 * Drag and Drop Listener.
 * 
 * @author yaragalla Muralidhar.
 *
 */
public class UADNDListener extends DropTargetAdapter{
  
  private IPMLogger logger=IPMLogger.getLogger();
  
  private String ip;
  private ChatGui chatGui;
  
  /**
   * constructs UADNDListener object.
   * 
   * @param ip - destination IP address.
   * @param chatGui - chatGui.
   */
  public UADNDListener(String ip,ChatGui chatGui){
    this.ip=ip;
    this.chatGui=chatGui;
  }

  @SuppressWarnings("unchecked")
  @Override
  public void drop(DropTargetDropEvent event) {
    StyledDocument doc=(StyledDocument)chatGui.getMa().getDocument();
    
    try {
      Transferable transferable = event.getTransferable();
      if (transferable.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
        event.acceptDrop(DnDConstants.ACTION_COPY);
        List<File> fileList = (List<File>)transferable.getTransferData(DataFlavor.javaFileListFlavor);
        Iterator<File> iterator = fileList.iterator();
        while (iterator.hasNext()) {
          File file = iterator.next();
          String simpleName=file.getName();
          StatusPanels panels=displayFTStatusMsg(doc,simpleName);
          if(chatGui.isRemoteUserClosed())
            chatGui.setRemoteUserClosed(false);
          chatGui.getMa().setCaretPosition(chatGui.getMa().getDocument().getLength());
          Thread fileClient=new Thread(new FileClient(ip,file,chatGui.getId(),panels));
          fileClient.start();          
        }
        event.getDropTargetContext().dropComplete(true);
      } else if (transferable.isDataFlavorSupported (DataFlavor.stringFlavor)){
        event.acceptDrop(DnDConstants.ACTION_COPY);
        String str = (String)transferable.getTransferData (DataFlavor.stringFlavor);
        chatGui.getUa().append(str);        
        event.getDropTargetContext().dropComplete(true);
      }else{
        event.rejectDrop();
      }
    }catch (IOException exception) {
      logger.error(exception.getMessage(), exception);      
      event.rejectDrop();
    }catch (UnsupportedFlavorException ufException ) {
      logger.error(ufException.getMessage(), ufException);      
      event.rejectDrop();
    }    
  }
  
  /**
   * This method displays status panels in the associated chat GUI.
   * 
   * @param doc - styled document associated with the chat GUI Main Area. 
   * @param simpleFileName - file name with which this is associated to.
   * @return StatusPanels
   */
  private StatusPanels displayFTStatusMsg(StyledDocument doc,String simpleFileName){
    StatusPanels panels=new StatusPanels();
    SimpleAttributeSet bold=new SimpleAttributeSet();
    StyleConstants.setBold(bold, true);
    try{
      doc.insertString(doc.getLength(), IPMessenger.resources.getString("myself")+" : ",bold);
      doc.insertString(doc.getLength(), simpleFileName+"\n",null);          
      JPanel statusPanel=new JPanel(new BorderLayout());        
      JTextField jtf=new JTextField(IPMessenger.resources.getString("awaitingFTAcceptance"));
      jtf.setEditable(false);
      statusPanel.add(jtf,BorderLayout.CENTER);
      Style style = doc.addStyle("StyleName", null);
        StyleConstants.setComponent(style, statusPanel);
        doc.insertString(doc.getLength(), "File Transfer"+"\n", style);  
        panels.setStatus(statusPanel);
        
        JPanel progressPanel=new JPanel(new BorderLayout());      
      Style stylePP = doc.addStyle("StyleName", null);
        StyleConstants.setComponent(stylePP, progressPanel);
        doc.insertString(doc.getLength(), "File Transfer"+"\n", stylePP);  
        panels.setProgress(progressPanel);
        
    }catch(BadLocationException ble){
      logger.error(ble.getMessage(), ble);
    }
    
    return panels;
  }
  
  /**
   * Inner class used to holds the Status Panels.
   */
  public static class StatusPanels{
    
    private JPanel status;
    private JPanel progress;
    
    
    public JPanel getStatus() {
      return status;
    }
    public void setStatus(JPanel status) {
      this.status = status;
    }
    public JPanel getProgress() {
      return progress;
    }
    public void setProgress(JPanel progress) {
      this.progress = progress;
    }    
  }  
}