/*
 *  Freeplane - mind map editor
 *  Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.freeplane.features.encrypt;

import java.awt.event.ActionEvent;

import org.freeplane.core.ui.AFreeplaneAction;
import org.freeplane.core.ui.EnabledAction;
import org.freeplane.features.map.EncryptionModel;
import org.freeplane.features.map.MapController;
import org.freeplane.features.map.NodeModel;
import org.freeplane.features.mode.Controller;
import org.freeplane.features.mode.ModeController;

@EnabledAction(checkOnNodeChange=true)
public class EnterPassword extends AFreeplaneAction{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	final private EncryptionController encryptionController;

	public EnterPassword(EncryptionController encryptionController) {
		super("EnterPassword");
		this.encryptionController = encryptionController;
	}

	public void actionPerformed(final ActionEvent e) {
		final NodeModel node = Controller.getCurrentModeController().getMapController().getSelectedNode();
		encryptionController.toggleCryptState(node);
	}

	public boolean canBeEnabled() {
		final ModeController modeController = Controller.getCurrentModeController();
		if (modeController == null) {
			return false;
		}
		boolean isEncryptedNode = false;
		boolean isOpened = false;
		final MapController mapController = modeController.getMapController();
		final NodeModel selectedNode = mapController.getSelectedNode();
		if (selectedNode != null) {
			if (modeController.canEdit()) {
				return true;
			}
			final EncryptionModel enode = EncryptionModel.getModel(selectedNode);
			if (enode != null) {
				isEncryptedNode = true;
				isOpened = enode.isAccessible();
			}
		}
		return (isEncryptedNode && !isOpened);
	}

	@Override
    public void setEnabled() {
	    super.setEnabled(canBeEnabled());
    }
}