it.tidalwave.role.ui.javafx.impl.tree.ObsoletePresentationModelDisposer Maven / Gradle / Ivy
/*
* #%L
* *********************************************************************************************************************
*
* SteelBlue
* http://steelblue.tidalwave.it - git clone [email protected]:tidalwave/steelblue-src.git
* %%
* Copyright (C) 2015 - 2015 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.tree;
import javax.annotation.Nonnull;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.control.TreeItem;
import javafx.scene.control.TreeView;
import it.tidalwave.role.ui.PresentationModel;
import lombok.extern.slf4j.Slf4j;
/***********************************************************************************************************************
*
* This listener calls {@link PresentationModel#dispose()} on instances that have been detached from a {@link TreeView}.
*
* @author Fabrizio Giudici
* @version $Id$
*
**********************************************************************************************************************/
@Slf4j
public class ObsoletePresentationModelDisposer implements ChangeListener>
{
@Override
public void changed (final @Nonnull ObservableValue> ov,
final TreeItem oldTreeItem,
final TreeItem newTreeItem)
{
if (oldTreeItem != null)
{
disposeRecursively(oldTreeItem);
}
}
private void disposeRecursively (final @Nonnull TreeItem treeItem)
{
treeItem.getValue().dispose();
treeItem.setValue(null);
for (final TreeItem childTreeItem : treeItem.getChildren())
{
disposeRecursively(childTreeItem);
}
}
}