/*
 * AttachmentPanel.java
 *
 * Created on den 19 september 2001, 18:53
 */

package ip1.u9; 

import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import ip1.u9.util.*;
import java.awt.event.*;

/** Hjälpkomponent till MultiContentPanel som sköter dess attachmenthantering.
 *
 * @author  Henrik Johansson, DS80
 * @version ht2001
 */
public class AttachmentPanel extends javax.swing.JPanel {
    protected boolean enabled = true;
    protected JFileChooser chooser = null;
    
    /** Skapar en ny AttachmentPanel */
    public AttachmentPanel() {
        initComponents();
        attachments.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                if(attachments.getSelectedObjects() != null)
                    delete.setEnabled(true);
                else
                    delete.setEnabled(false);
            }
        });
    }
    
    /** Slår av och på denna komponent
     *
     *@param bool true = på.
     */
    public void setEnabled(boolean bool) {
        enabled = bool;
        delete.setEnabled(false);
        if(bool) {
            add.setEnabled(true);
            attachments.setEnabled(true);
        } else {
            add.setEnabled(false);
            attachments.setEnabled(false);
        }
    }
    
    public boolean isEnabled() {
        return enabled;
    }
    
    public Attachment[] getAttachmentFiles() {
        DefaultComboBoxModel model = (DefaultComboBoxModel) attachments.getModel();
        Attachment[] tmp = new Attachment[model.getSize()];
        for(int i = 0; i < model.getSize(); i++) {
            tmp[i] = (Attachment) model.getElementAt(i);
        }
        return tmp;
    }
    
    public boolean hasAttachments() {
        return attachments.getModel().getSize() > 0;
    }
    
    public void setAttachments(Attachment[] attachments) {
        this.attachments.setModel(new DefaultComboBoxModel(attachments));
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    private void initComponents() {//GEN-BEGIN:initComponents
        add = new javax.swing.JButton();
        delete = new javax.swing.JButton();
        attachments = new javax.swing.JComboBox();
        
        setLayout(new java.awt.GridBagLayout());
        java.awt.GridBagConstraints gridBagConstraints1;
        
        setPreferredSize(new java.awt.Dimension(0, 27));
        setMinimumSize(new java.awt.Dimension(0, 27));
        add.setText("Attachment");
        add.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                addActionPerformed(evt);
            }
        });
        
        gridBagConstraints1 = new java.awt.GridBagConstraints();
        gridBagConstraints1.anchor = java.awt.GridBagConstraints.NORTH;
        add(add, gridBagConstraints1);
        
        delete.setText("Ta bort");
        delete.setEnabled(false);
        delete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                deleteActionPerformed(evt);
            }
        });
        
        gridBagConstraints1 = new java.awt.GridBagConstraints();
        gridBagConstraints1.gridx = 2;
        gridBagConstraints1.gridy = 0;
        gridBagConstraints1.anchor = java.awt.GridBagConstraints.NORTH;
        add(delete, gridBagConstraints1);
        
        gridBagConstraints1 = new java.awt.GridBagConstraints();
        gridBagConstraints1.gridx = 1;
        gridBagConstraints1.gridy = 0;
        gridBagConstraints1.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints1.weightx = 1.0;
        add(attachments, gridBagConstraints1);
        
    }//GEN-END:initComponents
    // Lägger via en filväljare till filer som skall skickas med som attachments
    private void addActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addActionPerformed
        if(chooser == null) {
            chooser = new JFileChooser();
            chooser.setApproveButtonText("Attach");
            chooser.setCurrentDirectory(new File("/"));
        }
        int returnVal = chooser.showOpenDialog(this);
        if(returnVal == JFileChooser.APPROVE_OPTION) {
            try {
                BodyPart body = new MimeBodyPart();
                DataSource source = new FileDataSource(chooser.getSelectedFile());
                body.setDataHandler(new DataHandler(source));
                body.setFileName(chooser.getSelectedFile().getName());
                body.setDisposition(Part.ATTACHMENT);
                Attachment attachment = new Attachment(body);
                ((DefaultComboBoxModel) attachments.getModel()).addElement(attachment);
            } catch(MessagingException e) {
                System.err.println(e.getMessage());
            }
        }
    }//GEN-LAST:event_addActionPerformed
    // För att ta bort ett attachment man tidigare lagt till
    private void deleteActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_deleteActionPerformed
        Object[] delete = attachments.getSelectedObjects();
        DefaultComboBoxModel model = (DefaultComboBoxModel) attachments.getModel();
        for(int i = 0; i < delete.length; i++) {
            model.removeElement(delete[i]);
        }
    }//GEN-LAST:event_deleteActionPerformed


    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton add;
    private javax.swing.JButton delete;
    private javax.swing.JComboBox attachments;
    // End of variables declaration//GEN-END:variables

}