package com.nilhcem.fakesmtp.gui.info;
   
   import com.nilhcem.fakesmtp.core.ArgsHandler;
   import com.nilhcem.fakesmtp.core.I18n;
   import com.nilhcem.fakesmtp.gui.DirChooser;
   import com.nilhcem.fakesmtp.model.UIModel;
   
   import javax.swing.JTextField;
   import java.awt.Color;
  import java.awt.event.MouseEvent;
  import java.awt.event.MouseListener;
  import java.util.Observable;
  import java.util.Observer;
  
  /**
   * Text field in which will be written the path where emails will be automatically saved.
   *
   * @author Nilhcem
   * @since 1.0
   */
  public final class SaveMsgField extends Observable implements Observer {
  
  	private final JTextField saveMsgField = new JTextField(UIModel.INSTANCE.getSavePath());
  
  	/**
  	 * Creates a text field and adds a mouse listener, to display the directory chooser dialog when a user clicks on the field.
  	 * <p>
  	 * The text field will be disabled by default to avoid the user to type any folder directly.<br>
  	 * Instead, he can use the directory chooser dialog to select the path he wants.
  	 * </p>
  	 */
  	public SaveMsgField() {
  		saveMsgField.setToolTipText(I18n.INSTANCE.get("savemsgfield.tooltip"));
  
  		// Disable edition but keep the same background color
  		Color bg = saveMsgField.getBackground();
  		saveMsgField.setEditable(false);
  		saveMsgField.setBackground(bg);
  
  		if (!ArgsHandler.INSTANCE.memoryModeEnabled()) {
  			// Add a MouseListener
  			saveMsgField.addMouseListener(new MouseListener() {
  				@Override
  				public void mouseClicked(MouseEvent e) {
  				}
  
  				@Override
  				public void mousePressed(MouseEvent e) {
  					openFolderSelection();
  				}
  
  				@Override
  				public void mouseReleased(MouseEvent e) {
  				}
  
  				@Override
  				public void mouseEntered(MouseEvent e) {
  				}
  
  				@Override
  				public void mouseExited(MouseEvent e) {
  				}
  
  				private void openFolderSelection() {
  					setChanged();
  					notifyObservers();
  				}
  			});
  		}
  	}
  
  	/**
  	 * Returns the JTextField object.
  	 *
  	 * @return the JTextField object.
  	 */
  	public JTextField get() {
  		return saveMsgField;
  	}
  
  	/**
  	 * Updates the content of the JTextField with the new directory value.
  	 * <p>
  	 * Once a directory has been chosen by the {@link DirChooser}, the latter will
  	 * notify this class, so that it can update its content.
  	 * </p>
  	 *
  	 * @param o the observable element which will notify this class.
  	 * @param arg optional parameters (not used).
  	 */
  	@Override
  	public void update(Observable o, Object arg) {
  		if (o instanceof DirChooser) {
  			saveMsgField.setText(UIModel.INSTANCE.getSavePath());
  		}
  	}
  }