
it.tidalwave.role.ui.javafx.impl.PropertyAdapter Maven / Gradle / Ivy
/*
* #%L
* *********************************************************************************************************************
*
* NorthernWind - lightweight CMS
* http://northernwind.tidalwave.it - hg clone https://bitbucket.org/tidalwave/northernwind-src
* %%
* Copyright (C) 2011 - 2013 Tidalwave s.a.s. (http://tidalwave.it)
* %%
* *********************************************************************************************************************
*
* 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.
*
* *********************************************************************************************************************
*
* $Id$
*
* *********************************************************************************************************************
* #L%
*/
package it.tidalwave.role.ui.javafx.impl;
import javax.annotation.Nonnull;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.Executors;
import javafx.beans.InvalidationListener;
import javafx.beans.property.Property;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.application.Platform;
import it.tidalwave.role.ui.BoundProperty;
import lombok.extern.slf4j.Slf4j;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
* @version $Id$
*
**********************************************************************************************************************/
@Slf4j
public class PropertyAdapter implements Property
{
@Nonnull
private final BoundProperty delegate;
// FIXME: WEAK LISTENER!!
private final List> listeners = new ArrayList<>();
private T boundValue;
// FIXME: WEAK LISTENER!!
private final PropertyChangeListener propertyChangeListener = new PropertyChangeListener()
{
@Override
public void propertyChange (final @Nonnull PropertyChangeEvent evt)
{
log.trace("propertyChange({}) - bound value: {}", evt, boundValue);
if (!Objects.equals(boundValue, evt.getNewValue()))
{
boundValue = (T)evt.getNewValue();
Platform.runLater(new Runnable()
{
@Override
public void run()
{
for (final ChangeListener super T> listener : new ArrayList<>(listeners))
{
log.trace("fire changed({}, {}) to {}", evt.getOldValue(), evt.getNewValue(), listener);
listener.changed(PropertyAdapter.this, (T)evt.getOldValue(), (T)evt.getNewValue());
}
}
});
}
}
};
public PropertyAdapter (final @Nonnull BoundProperty delegate)
{
this.delegate = delegate;
delegate.addPropertyChangeListener(propertyChangeListener);
}
@Override
public T getValue()
{
return delegate.get();
}
@Override
public void setValue (final T value)
{
log.trace("setValue({})", value);
boundValue = value;
if (!Objects.equals(value, delegate.get()))
{
Executors.newSingleThreadExecutor().submit(new Runnable() // FIXME: use a shared executor
{
@Override
public void run()
{
delegate.set(value);
}
});
}
}
@Override
public void addListener (final @Nonnull ChangeListener super T> listener)
{
listeners.add(listener);
}
@Override
public void removeListener (final @Nonnull ChangeListener super T> listener)
{
listeners.remove(listener);
}
@Override
public void addListener(InvalidationListener listener)
{
log.warn("addListener({})", listener);
}
@Override
public void removeListener(InvalidationListener listener)
{
log.warn("removeListener({})", listener);
}
@Override
public void bind(ObservableValue extends T> observable)
{
log.warn("bind({})", observable);
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void unbind()
{
log.warn("unbind()");
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public boolean isBound()
{
log.warn("isBound()");
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void bindBidirectional(Property other)
{
log.warn("bindBidirectional({})", other);
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void unbindBidirectional(Property other)
{
log.warn("unbindBidirectional({})", other);
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public Object getBean()
{
log.warn("getBean()");
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public String getName()
{
log.warn("getName()");
throw new UnsupportedOperationException("Not supported yet.");
}
}
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