<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="en"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>ListViewBindings.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">SteelBlue - JavaFX Bindings</a> > <a href="index.source.html" class="el_package">it.tidalwave.role.ui.javafx.impl.list</a> > <span class="el_source">ListViewBindings.java</span></div><h1>ListViewBindings.java</h1><pre class="source lang-java linenums">/*
* *********************************************************************************************************************
*
* SteelBlue: DCI User Interfaces
* http://tidalwave.it/projects/steelblue
*
* Copyright (C) 2015 - 2021 by 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.
*
* *********************************************************************************************************************
*
* git clone https://bitbucket.org/tidalwave/steelblue-src
* git clone https://github.com/tidalwave-it/steelblue-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.role.ui.javafx.impl.list;
import javax.annotation.Nonnull;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.Executor;
import javafx.collections.ObservableList;
import javafx.util.Callback;
import javafx.beans.value.ChangeListener;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import it.tidalwave.role.ui.UserAction;
import it.tidalwave.role.ui.PresentationModel;
import it.tidalwave.role.ui.javafx.impl.common.CellBinder;
import it.tidalwave.role.ui.javafx.impl.common.RoleBag;
import it.tidalwave.role.ui.javafx.impl.common.ChangeListenerSelectableAdapter;
import it.tidalwave.role.ui.javafx.impl.common.DelegateSupport;
import it.tidalwave.role.ui.javafx.impl.common.JavaFXWorker;
import lombok.extern.slf4j.Slf4j;
import static it.tidalwave.role.ui.javafx.impl.common.JavaFXWorker.childrenPm;
import static javafx.collections.FXCollections.observableArrayList;
import static javafx.scene.input.KeyCode.*;
import static it.tidalwave.role.ui.UserActionProvider._UserActionProvider_;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
<span class="nc" id="L57">@Slf4j</span>
public class ListViewBindings extends DelegateSupport
{
private final Callback<ListView<PresentationModel>, ListCell<PresentationModel>> cellFactory;
<span class="nc" id="L62"> private final ChangeListener<PresentationModel> changeListener = new ChangeListenerSelectableAdapter(executor);</span>
/*******************************************************************************************************************
*
*
*
******************************************************************************************************************/
public ListViewBindings (@Nonnull final Executor executor, @Nonnull final CellBinder cellBinder)
{
<span class="nc" id="L71"> super(executor);</span>
<span class="nc" id="L72"> cellFactory = listView -> new AsObjectListCell<>(cellBinder);</span>
<span class="nc" id="L73"> }</span>
/*******************************************************************************************************************
*
* {@inheritDoc}
*
******************************************************************************************************************/
public void bind (@Nonnull final ListView<PresentationModel> listView,
@Nonnull final PresentationModel pm,
@Nonnull final Optional<Runnable> callback)
{
<span class="nc" id="L84"> listView.setCellFactory(cellFactory);</span>
// 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
<span class="nc" id="L90"> listView.setOnKeyPressed(event -></span>
{
<span class="nc bnc" id="L92" title="All 2 branches missed."> if (List.of(SPACE, ENTER).contains(event.getCode()))</span>
{
<span class="nc" id="L94"> final PresentationModel selectedPm = listView.getSelectionModel().getSelectedItem();</span>
// TODO: must call the default action - but should we look up it again?
// Otherwise emulate mouse double click on the cell
<span class="nc" id="L97"> ListViewBindings.log.debug("ListView onKeyPressed: {}", selectedPm);</span>
<span class="nc" id="L99"> executor.execute(() -></span>
{
// FIXME: it would be nicer to retrieve the cell and its associated RoleBag?
it would be nicer to retrieve the cell and its associated RoleBag?
<span class="nc" id="L102"> final RoleBag roles = new RoleBag(selectedPm, List.of(_UserActionProvider_));</span>
<span class="nc" id="L103"> roles.getDefaultUserAction().ifPresent(UserAction::actionPerformed);</span>
<span class="nc" id="L104"> });</span>
}
<span class="nc" id="L106"> });</span>
<span class="nc" id="L108"> final ReadOnlyObjectProperty<PresentationModel> selectedProperty = listView.getSelectionModel().selectedItemProperty();</span>
<span class="nc" id="L109"> selectedProperty.removeListener(changeListener);</span>
<span class="nc" id="L110"> listView.setItems(observableArrayList()); // quick clear in case of long operations FIXME doesn't work</span>
<span class="nc" id="L111"> JavaFXWorker.run(executor,</span>
<span class="nc" id="L112"> () -> childrenPm(pm),</span>
<span class="nc" id="L113"> items -> finalize(listView, items, selectedProperty, callback));</span>
<span class="nc" id="L114"> }</span>
/*******************************************************************************************************************
*
******************************************************************************************************************/
private void finalize (@Nonnull final ListView<PresentationModel> listView,
@Nonnull final ObservableList<PresentationModel> items,
@Nonnull final ReadOnlyObjectProperty<PresentationModel> selectedProperty,
@Nonnull final Optional<Runnable> callback)
{
<span class="nc" id="L124"> listView.setItems(items);</span>
<span class="nc" id="L125"> selectedProperty.addListener(changeListener);</span>
<span class="nc" id="L126"> callback.ifPresent(Runnable::run);</span>
<span class="nc" id="L127"> }</span>
}
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