ExportDialog.java

/*
 * Copyright 2013 Serdar.
 *
 * 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 de.fub.maps.project.datasource.spi.actions;

import de.fub.maps.project.datasource.GPXDatasourceNode;
import de.fub.maps.project.datasource.MapsDatasourceNodeFactory;
import de.fub.utilsmodule.icons.IconRegister;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.MessageFormat;
import java.util.Arrays;
import java.util.List;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.openide.filesystems.FileObject;
import org.openide.loaders.DataObject;
import org.openide.util.WeakListeners;

/**
 *
 * @author Serdar
 */
public class ExportDialog extends javax.swing.JPanel implements ActionListener, DocumentListener {

    private static final long serialVersionUID = 1L;
    private List<FileObject> folders = null;
    private ImageIcon icon;

    /**
     * Creates new form ExportDialog
     */
    public ExportDialog() {
        initComponents();
        folderName.addActionListener(WeakListeners.create(ActionListener.class, ExportDialog.this, folderName));
        fileName.getDocument().addDocumentListener(WeakListeners.document(ExportDialog.this, fileName.getDocument()));
        GPXDatasourceNode datasourceNode = MapsDatasourceNodeFactory.gpxDatasourceNode;
        if (datasourceNode != null) {
            DataObject dataObject = datasourceNode.getLookup().lookup(DataObject.class);
            if (dataObject != null) {
                folders = Arrays.asList(dataObject.getPrimaryFile().getChildren());

                for (FileObject file : folders) {
                    folderName.addItem(file.getName());
                }
                if (!folders.isEmpty()) {
                    folderName.setSelectedIndex(0);
                }
            }
        }
    }

    public JTextField getFileName() {
        return fileName;
    }

    public JComboBox getFolderName() {
        return folderName;
    }

    public JCheckBox getOpenAfterSave() {
        return openAfterSave;
    }

    public static long getSerialVersionUID() {
        return serialVersionUID;
    }

    public JButton getCancelbutton() {
        return cancelbutton;
    }

    public JButton getSaveButton() {
        return saveButton;
    }

    public Object[] getOptions() {
        return new Object[]{saveButton, cancelbutton};
    }

    /**
     * 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        saveButton = new javax.swing.JButton();
        cancelbutton = new javax.swing.JButton();
        folderName = new javax.swing.JComboBox<String>();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jLabel1 = new javax.swing.JLabel();
        fileName = new javax.swing.JTextField();
        jLabel2 = new javax.swing.JLabel();
        openAfterSave = new javax.swing.JCheckBox();
        message = new javax.swing.JLabel();

        org.openide.awt.Mnemonics.setLocalizedText(saveButton, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.saveButton.text")); // NOI18N

        org.openide.awt.Mnemonics.setLocalizedText(cancelbutton, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.cancelbutton.text")); // NOI18N

        folderName.setEditable(true);

        jScrollPane1.setBorder(null);

        jTextArea1.setEditable(false);
        jTextArea1.setColumns(20);
        jTextArea1.setFont(new java.awt.Font("Tahoma", 0, 11)); // NOI18N
        jTextArea1.setLineWrap(true);
        jTextArea1.setRows(2);
        jTextArea1.setText(org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.jTextArea1.text")); // NOI18N
        jTextArea1.setWrapStyleWord(true);
        jTextArea1.setOpaque(false);
        jScrollPane1.setViewportView(jTextArea1);

        org.openide.awt.Mnemonics.setLocalizedText(jLabel1, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.jLabel1.text")); // NOI18N

        fileName.setText(org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.fileName.text")); // NOI18N

        org.openide.awt.Mnemonics.setLocalizedText(jLabel2, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.jLabel2.text")); // NOI18N

        openAfterSave.setSelected(true);
        org.openide.awt.Mnemonics.setLocalizedText(openAfterSave, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.openAfterSave.text")); // NOI18N
        openAfterSave.setHorizontalTextPosition(javax.swing.SwingConstants.LEADING);
        openAfterSave.setIconTextGap(10);
        openAfterSave.setMargin(new java.awt.Insets(2, -2, 2, 2));

        org.openide.awt.Mnemonics.setLocalizedText(message, org.openide.util.NbBundle.getMessage(ExportDialog.class, "ExportDialog.message.text")); // NOI18N

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane1)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(openAfterSave)
                        .addGap(0, 0, Short.MAX_VALUE))
                    .addComponent(message, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 86, Short.MAX_VALUE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(folderName, 0, 394, Short.MAX_VALUE)
                            .addComponent(fileName))))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 53, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(folderName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(fileName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(openAfterSave)
                .addGap(18, 18, 18)
                .addComponent(message, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
    }// </editor-fold>//GEN-END:initComponents
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.JButton cancelbutton;
    private javax.swing.JTextField fileName;
    private javax.swing.JComboBox<String> folderName;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JLabel message;
    private javax.swing.JCheckBox openAfterSave;
    private javax.swing.JButton saveButton;
    // End of variables declaration//GEN-END:variables

    @Override
    public void actionPerformed(ActionEvent e) {
        checkFileExist();
    }

    private FileObject getTestFileObject() {
        FileObject folderFileObject = null;
        GPXDatasourceNode datasourceNode = MapsDatasourceNodeFactory.gpxDatasourceNode;
        Object selectedItem = folderName.getSelectedItem();
        if (datasourceNode != null && selectedItem instanceof String) {
            String foldName = (String) selectedItem;
            DataObject dataObject = datasourceNode.getLookup().lookup(DataObject.class);

            if (dataObject != null) {
                FileObject datasourceFileObject = dataObject.getPrimaryFile();
                folderFileObject = datasourceFileObject.getFileObject(foldName);

            }
        }
        return folderFileObject;
    }

    @Override
    public void insertUpdate(DocumentEvent e) {
        checkFileExist();
    }

    @Override
    public void removeUpdate(DocumentEvent e) {
        checkFileExist();
    }

    @Override
    public void changedUpdate(DocumentEvent e) {
        checkFileExist();
    }

    private void checkFileExist() {
        normalState();

        FileObject testFileObject = getTestFileObject();
        if (testFileObject != null && fileName.getText() != null) {
            if (fileName.getText().trim().length() == 0) {
                errorState(ErrorState.ERROR_FILE_NAME_REQUIRED);
            } else {
                String fileString = fileName.getText();
                if (!fileString.endsWith(".gpx")) {
                    fileString = MessageFormat.format("{0}.gpx", fileString);
                }

                FileObject fileObject = testFileObject.getFileObject(fileString);
                if (fileObject != null) {
                    errorState(ErrorState.ERROR_FILE_ALREADY_EXISTS);
                }
            }
        }
    }

    private Icon getErrorIcon() {
        icon = null;
        if (icon == null) {
            Image image = IconRegister.findRegisteredIcon("errorIcon.png");
            if (image != null) {
                icon = new ImageIcon(image);
            }
        }
        return icon;
    }

    private void errorState(ErrorState error) {
        switch (error) {
            case ERROR_FILE_ALREADY_EXISTS:
                message.setText("There already exists a file with the specifed name. Please enter another name.");
                break;
            case ERROR_FILE_NAME_REQUIRED:
                message.setText("You have to specifiy a file name which has atleast one character!");
                break;
            default:
                throw new AssertionError();
        }

        message.setIcon(getErrorIcon());
        saveButton.setEnabled(false);
    }

    private void normalState() {
        message.setText(null);
        message.setIcon(null);
        saveButton.setEnabled(true);
    }

    private enum ErrorState {

        ERROR_FILE_ALREADY_EXISTS,
        ERROR_FILE_NAME_REQUIRED;
    }
}