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Gluon Plugin allows developers to create Java applications and their native images targeting Android, iOS, Linux, MacOS and Windows platforms using the same codebase.

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/*
 * Copyright (c) 2018, 2020, Gluon Software
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.gluonhq.plugin.netbeans.template.visuals;

import org.openide.WizardDescriptor;
import org.openide.WizardValidationException;
import org.openide.util.HelpCtx;

import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.util.HashSet;
import java.util.Set;

public abstract class GluonBaseWizardPanel implements WizardDescriptor.Panel,
        WizardDescriptor.ValidatingPanel, WizardDescriptor.FinishablePanel {
    
    protected WizardDescriptor wizardDescriptor;
    protected GluonBasePanelVisual component;
    
    @Override
    public abstract Component getComponent();

    @Override
    public HelpCtx getHelp() {
        return new HelpCtx(GluonBaseWizardPanel.class.getName());
    }

    @Override
    public boolean isValid() {
        getComponent();
        return component.valid(wizardDescriptor);
    }

    @Override
    public void readSettings(Object settings) {
        wizardDescriptor = (WizardDescriptor) settings;
        component.read(wizardDescriptor);
    }

    @Override
    public void storeSettings(Object settings) {
        WizardDescriptor d = (WizardDescriptor) settings;
        component.store(d);
    }

    private final Set listeners = new HashSet<>(1); // or can use ChangeSupport in NB 6.0

    @Override
    public final void addChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.add(l);
        }
    }

    @Override
    public final void removeChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.remove(l);
        }
    }

    protected final void fireChangeEvent() {
        Set ls;
        synchronized (listeners) {
            ls = new HashSet<>(listeners);
        }
        ChangeEvent ev = new ChangeEvent(this);
        for (ChangeListener l : ls) {
            l.stateChanged(ev);
        }
    }

    @Override
    public void validate() throws WizardValidationException {
        getComponent();
        component.validate(wizardDescriptor);
    }

    @Override
    public boolean isFinishPanel() {
        return true;
    }
    
}