ObsoletePresentationModelDisposer.java
- /*
- * #%L
- * *********************************************************************************************************************
- *
- * SteelBlue
- * http://steelblue.tidalwave.it - git clone git@bitbucket.org:tidalwave/steelblue-src.git
- * %%
- * Copyright (C) 2015 - 2021 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.
- *
- * *********************************************************************************************************************
- *
- *
- *
- * *********************************************************************************************************************
- * #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
- *
- **********************************************************************************************************************/
- @Slf4j
- public class ObsoletePresentationModelDisposer implements ChangeListener<TreeItem<PresentationModel>>
- {
- @Override
- public void changed (@Nonnull final ObservableValue<? extends TreeItem<PresentationModel>> ov,
- final TreeItem<PresentationModel> oldTreeItem,
- final TreeItem<PresentationModel> newTreeItem)
- {
- if (oldTreeItem != null)
- {
- disposeRecursively(oldTreeItem);
- }
- }
- private void disposeRecursively (@Nonnull final TreeItem<PresentationModel> treeItem)
- {
- treeItem.getValue().dispose();
- treeItem.setValue(null);
- for (final TreeItem<PresentationModel> childTreeItem : treeItem.getChildren())
- {
- disposeRecursively(childTreeItem);
- }
- }
- }