it.tidalwave.role.ui.javafx.impl.combobox.ComboBoxBindings Maven / Gradle / Ivy
/*
* #%L
* *********************************************************************************************************************
*
* SteelBlue
* http://steelblue.tidalwave.it - hg clone https://bitbucket.org/tidalwave/steelblue-src
* %%
* 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: ComboBoxBindings.java,v beb11cee2b6d 2015/04/23 09:10:48 fabrizio $
*
* *********************************************************************************************************************
* #L%
*/
package it.tidalwave.role.ui.javafx.impl.combobox;
import javax.annotation.Nonnull;
import java.util.Arrays;
import java.util.concurrent.Executor;
import javafx.util.Callback;
import javafx.collections.ObservableList;
import javafx.beans.value.ChangeListener;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.ComboBox;
import javafx.scene.input.KeyEvent;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.application.Platform;
import it.tidalwave.util.AsException;
import it.tidalwave.util.NotFoundException;
import it.tidalwave.role.SimpleComposite;
import it.tidalwave.role.ui.PresentationModel;
import it.tidalwave.role.ui.UserActionProvider;
import it.tidalwave.role.ui.javafx.impl.common.DelegateSupport;
import it.tidalwave.role.ui.javafx.impl.common.AsObjectListCell;
import it.tidalwave.role.ui.javafx.impl.common.ChangeListenerSelectableAdapter;
import lombok.extern.slf4j.Slf4j;
import static javafx.collections.FXCollections.observableArrayList;
import static javafx.scene.input.KeyCode.*;
import static it.tidalwave.role.SimpleComposite.SimpleComposite;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
* @version $Id: ComboBoxBindings.java,v beb11cee2b6d 2015/04/23 09:10:48 fabrizio $
*
**********************************************************************************************************************/
@Slf4j
public class ComboBoxBindings extends DelegateSupport
{
private final Callback, ListCell> cellFactory =
(comboBox) -> new AsObjectListCell<>();
private final ChangeListener changeListener = new ChangeListenerSelectableAdapter(executor);
/*******************************************************************************************************************
*
*
*
******************************************************************************************************************/
private final EventHandler eventHandler = event ->
{
try
{
final ComboBox comboBox = (ComboBox)event.getSource();
final PresentationModel selectedPm = comboBox.getSelectionModel().getSelectedItem();
selectedPm.as(UserActionProvider.class).getDefaultAction().actionPerformed();
}
catch (AsException | NotFoundException e)
{
// ok no action
}
};
/*******************************************************************************************************************
*
*
*
******************************************************************************************************************/
public ComboBoxBindings (final @Nonnull Executor executor)
{
super(executor);
}
/*******************************************************************************************************************
*
*
*
******************************************************************************************************************/
public void bind (final @Nonnull ComboBox comboBox,
final @Nonnull PresentationModel pm,
final @Nonnull Runnable callback)
{
comboBox.setCellFactory(cellFactory);
comboBox.setButtonCell(new AsObjectListCell<>());
comboBox.setOnAction(eventHandler);
// FIXME: WEAK LISTENERS
// FIXME: this won't work with any external navigation system, such as CEC menus
// TODO: try by having CEC selection emulating RETURN and optionally accepting RETURN here
comboBox.setOnKeyPressed((KeyEvent event) ->
{
if (Arrays.asList(SPACE, ENTER).contains(event.getCode()))
{
comboBox.show();
}
});
final ReadOnlyObjectProperty pmProperty = comboBox.getSelectionModel().selectedItemProperty();
pmProperty.removeListener(changeListener);
executor.execute(() -> // TODO: use FXWorker
{
final SimpleComposite composite = pm.as(SimpleComposite);
final ObservableList items = observableArrayList(composite.findChildren().results());
Platform.runLater(() ->
{
comboBox.setItems(items);
if (!items.isEmpty())
{
comboBox.getSelectionModel().select(items.get(0));
}
pmProperty.addListener(changeListener);
callback.run();
});
});
}
}