path: root/dozentenmodul/src/main/java/org/openslx/dozmod/gui/window/VirtConfigEditorWindow.java

package org.openslx.dozmod.gui.window;

import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import org.apache.log4j.Logger;
import org.openslx.dozmod.gui.Gui;
import org.openslx.dozmod.gui.helper.MessageType;
import org.openslx.dozmod.gui.helper.TextChangeListener;
import org.openslx.dozmod.gui.helper.UiFeedback;
import org.openslx.dozmod.gui.window.layout.VirtConfigEditorWindowLayout;


@SuppressWarnings("serial")
public class VirtConfigEditorWindow extends VirtConfigEditorWindowLayout implements UiFeedback {
	
	private final static Logger LOGGER = Logger.getLogger(VirtConfigEditorWindow.class);
	
	public interface VirtConfigChanged {
		public void virtConfigChanged(String newVmx);
	}
	private final String originalMachineDescription;
	private final VirtConfigEditorWindow me = this;

	protected VirtConfigEditorWindow(Window modalParent, final VirtConfigChanged cb, final String machineDescription) {
		super(modalParent);
		originalMachineDescription = machineDescription;

		// listener for the text fields
		pnlEditor.getDocument().addDocumentListener(new TextChangeListener() {
			@Override
			public void changed() {
				btnSave.setEnabled(!originalMachineDescription.equals(pnlEditor.getText()));;
			}
		});
		
		btnSave.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				cb.virtConfigChanged(pnlEditor.getText());
				// above command throws exception
				dispose();
			}
		});

		btnCancel.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				safeClose();
			}
		});
		// finally set the editor's content to the vmx
		pnlEditor.setText(machineDescription);
		pnlEditor.setCaretPosition(0);
	}

	public static void open(Window modalParent, final VirtConfigChanged cb, final String machineDescription) {
		VirtConfigEditorWindow win = new VirtConfigEditorWindow(modalParent, cb, machineDescription);
		win.setVisible(true);
	}

	private void safeClose() {
		if (originalMachineDescription.equals(pnlEditor.getText()) ||
				Gui.showMessageBox(me, "Ihre Änderungen werden verloren gehen, wollen Sie trotzdem abbrechen?", MessageType.QUESTION_YESNO,
						LOGGER, null))
			dispose();
	}

	@Override
	public boolean wantConfirmQuit() {
		return !originalMachineDescription.equals(pnlEditor.getText());
	}

	@Override
	public void escapePressed() {
		safeClose();
	}

}