DatasourceWizardPanel1.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.aggregator.actions.wizards.datasource;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.event.ChangeListener;
import org.openide.WizardDescriptor;
import org.openide.explorer.ExplorerManager;
import org.openide.loaders.DataObject;
import org.openide.nodes.FilterNode;
import org.openide.util.ChangeSupport;
import org.openide.util.HelpCtx;
import org.openide.util.WeakListeners;

public class DatasourceWizardPanel1 implements WizardDescriptor.Panel<WizardDescriptor> {

    public final static String DATASOURCE_FILE_OBJECT = "datasource.fileObject";
    public final static String SELECTED_NODES = "selected.nodes";
    private final ChangeSupport cs = new ChangeSupport(DatasourceWizardPanel1.this);
    /**
     * The visual component that displays this panel. If you need to access the
     * component from this class, just use getComponent().
     */
    private DatasourceVisualPanel1 component;
    private final PropertyChangeListener listener = new PropertyChangeListener() {
        @Override
        public void propertyChange(PropertyChangeEvent evt) {
            cs.fireChange();
        }
    };

    // Get the visual component for the panel. In this template, the component
    // is kept separate. This can be more efficient: if the wizard is created
    // but never displayed, or not all panels are displayed, it is better to
    // create only those which really need to be visible.
    @Override
    public DatasourceVisualPanel1 getComponent() {
        if (component == null) {
            component = new DatasourceVisualPanel1();
            ExplorerManager explorerManager = component.getExplorerManager();
            explorerManager.addPropertyChangeListener(WeakListeners.propertyChange(listener, explorerManager));
        }
        return component;
    }

    @Override
    public HelpCtx getHelp() {
        // Show no Help button for this panel:
        return HelpCtx.DEFAULT_HELP;
        // If you have context help:
        // return new HelpCtx("help.key.here");
    }

    @Override
    public boolean isValid() {
        return getComponent().getExplorerManager().getSelectedNodes().length > 0;
    }

    @Override
    public void addChangeListener(ChangeListener l) {
        cs.addChangeListener(l);
    }

    @Override
    public void removeChangeListener(ChangeListener l) {
        cs.removeChangeListener(l);
    }

    @Override
    public void readSettings(WizardDescriptor wiz) {
        Object property = wiz.getProperty(DATASOURCE_FILE_OBJECT);
        if (property instanceof DataObject) {
            DataObject object = (DataObject) property;
            getComponent().getExplorerManager().setRootContext(new FilterNode(object.getNodeDelegate(), new FilterNode.Children(object.getNodeDelegate())));
        }
    }

    @Override
    public void storeSettings(WizardDescriptor wiz) {
        wiz.putProperty(SELECTED_NODES, getComponent().getExplorerManager().getSelectedNodes());
    }
}