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* 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.spi.debugger.ui;
import java.util.LinkedList;
import java.util.List;
import org.netbeans.api.debugger.DebuggerEngine;
import org.netbeans.modules.debugger.ui.views.ViewModelListener;
import org.netbeans.spi.viewmodel.Models;
import org.netbeans.spi.viewmodel.Models.CompoundModel;
/**
* Support class for a custom view based on registered view models.
*
* @author Martin Entlicher
* @since 2.34
*/
public final class ViewLifecycle {
private ViewModelListener vml;
private final CompoundModelUpdateListener cmul;
ViewLifecycle(ViewModelListener vml, CompoundModelUpdateListener cmul) {
this.vml = vml;
this.cmul = cmul;
}
/**
* Get the current compound model, that can be used to construct the custom
* view.
* @return The current compound model
*/
public Models.CompoundModel getModel() {
return cmul.getCurrentModel();
}
/**
* Add a listener, which is called with the updated compound model.
* @param mul The model update listener
*/
public void addModelUpdateListener(ModelUpdateListener mul) {
cmul.addModelUpdateListener(mul);
}
/**
* Remove a model update listener
* @param mul The model update listener
*/
public void removeModelUpdateListener(ModelUpdateListener mul) {
cmul.removeModelUpdateListener(mul);
}
/**
* Destroy the underlying data, call this method when the view is closed.
* Model updates will no longer be received after this method is called.
*/
public void destroy() {
vml.destroy();
}
/**
* Model update listener, notified with updated compound model.
*/
public static interface ModelUpdateListener {
/**
* Called when compound model is updated.
*
* @param compoundModel The new compound model
* @param de The associated debugger engine, whose models were used to create the
* compound model. Can be null
, when no active debugger engine
* was found.
*/
public void modelUpdated(Models.CompoundModel compoundModel, DebuggerEngine de);
}
static class CompoundModelUpdateListener implements ModelUpdateListener {
private final List muls = new LinkedList();
private CompoundModel currentCompoundModel;
public void addModelUpdateListener(ModelUpdateListener mul) {
synchronized(muls) {
muls.add(mul);
}
}
public void removeModelUpdateListener(ModelUpdateListener mul) {
synchronized(muls) {
muls.remove(mul);
}
}
public CompoundModel getCurrentModel() {
return currentCompoundModel;
}
@Override
public void modelUpdated(CompoundModel compoundModel, DebuggerEngine de) {
List muls2;
synchronized(muls) {
currentCompoundModel = compoundModel;
muls2 = new LinkedList(muls);
}
for (ModelUpdateListener mul : muls2) {
mul.modelUpdated(compoundModel, de);
}
}
}
}
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