| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.netbeans.modules.java.disco; |
| |
| import java.awt.Component; |
| import java.util.ArrayList; |
| import java.util.List; |
| import javax.swing.event.ChangeEvent; |
| import javax.swing.event.ChangeListener; |
| import org.checkerframework.checker.guieffect.qual.UIEffect; |
| import org.checkerframework.checker.nullness.qual.MonotonicNonNull; |
| import org.checkerframework.checker.nullness.qual.NonNull; |
| import org.openide.WizardDescriptor; |
| import org.openide.WizardValidationException; |
| import org.openide.util.HelpCtx; |
| |
| public abstract class AbstractWizardPanel<C extends Component> implements WizardDescriptor.AsynchronousValidatingPanel<WizardDescriptor> { |
| |
| private final List<ChangeListener> listeners = new ArrayList<>(); |
| private @MonotonicNonNull C component; |
| |
| @UIEffect |
| @NonNull |
| protected abstract C createComponent(); |
| |
| @Override |
| @UIEffect |
| @SuppressWarnings("override.effect.invalid") |
| public C getComponent() { |
| if (component == null) |
| component = createComponent(); |
| return component; |
| } |
| |
| @UIEffect |
| protected void fireChangeListeners() { |
| ChangeEvent ce = new ChangeEvent(this); |
| for(ChangeListener l : listeners) { |
| l.stateChanged(ce); |
| } |
| } |
| |
| @Override |
| public void addChangeListener(ChangeListener l) { |
| listeners.add(l); |
| } |
| |
| @Override |
| public void removeChangeListener(ChangeListener l) { |
| listeners.remove(l); |
| } |
| |
| @Override |
| public void readSettings(WizardDescriptor wiz) { |
| } |
| |
| @Override |
| public void storeSettings(WizardDescriptor wiz) { |
| } |
| |
| @Override |
| public void prepareValidation() { |
| } |
| |
| @Override |
| public void validate() throws WizardValidationException { |
| } |
| |
| @Override |
| public HelpCtx getHelp() { |
| return HelpCtx.DEFAULT_HELP; |
| } |
| |
| } |