EditableTableView With Tab Functionality Only for same Row

EditableTableViewWithTab

import java.util.ArrayList;
import java.util.List;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Cell;
import javafx.scene.control.Label;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellEditEvent;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Callback;
import javafx.util.StringConverter;
import javafx.util.converter.DefaultStringConverter;

public class EditableTableViewWithTab extends Application {

    private TableView<Person> table = new TableView<Person>();
    private final ObservableList<Person> data = FXCollections
            .observableArrayList(new Person("Jacob", "Smith",
                    "[email protected]"), new Person("Isabella",
                    "Johnson", "[email protected]"), new Person(
                    "Ethan", "Williams", "[email protected]"),
                    new Person("Emma", "Jones", "[email protected]"),
                    new Person("Michael", "Brown", "[email protected]"));

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(450);
        stage.setHeight(550);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        table.setEditable(true);
        Callback<TableColumn, TableCell> cellFactory = new Callback<TableColumn, TableCell>() {
            public TableCell call(TableColumn p) {
                return new EditingCell();
            }
        };

        TableColumn firstNameCol = new TableColumn("First Name");
        firstNameCol.setMinWidth(100);
        firstNameCol
                .setCellValueFactory(new PropertyValueFactory<Person, String>(
                        "firstName"));
        firstNameCol.setCellFactory(cellFactory);
        firstNameCol
                .setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
                    @Override
                    public void handle(CellEditEvent<Person, String> t) {
                        ((Person) t.getTableView().getItems()
                                .get(t.getTablePosition().getRow()))
                                .setFirstName(t.getNewValue());
                    }
                });

        TableColumn lastNameCol = new TableColumn("Last Name");
        lastNameCol.setMinWidth(100);
        lastNameCol
                .setCellValueFactory(new PropertyValueFactory<Person, String>(
                        "lastName"));
        lastNameCol.setCellFactory(cellFactory);
        lastNameCol
                .setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
                    @Override
                    public void handle(CellEditEvent<Person, String> t) {
                        ((Person) t.getTableView().getItems()
                                .get(t.getTablePosition().getRow()))
                                .setLastName(t.getNewValue());
                    }
                });

        TableColumn emailCol = new TableColumn("Email");
        emailCol.setMinWidth(200);
        emailCol.setCellValueFactory(new PropertyValueFactory<Person, String>(
                "email"));
        emailCol.setCellFactory(cellFactory);
        emailCol.setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
            @Override
            public void handle(CellEditEvent<Person, String> t) {
                ((Person) t.getTableView().getItems()
                        .get(t.getTablePosition().getRow())).setEmail(t
                        .getNewValue());
            }
        });

        table.setItems(data);
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);

        final TextField addFirstName = new TextField();
        addFirstName.setPromptText("First Name");
        addFirstName.setMaxWidth(firstNameCol.getPrefWidth());
        final TextField addLastName = new TextField();
        addLastName.setMaxWidth(lastNameCol.getPrefWidth());
        addLastName.setPromptText("Last Name");
        final TextField addEmail = new TextField();
        addEmail.setMaxWidth(emailCol.getPrefWidth());
        addEmail.setPromptText("Email");

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table);

        ((Group) scene.getRoot()).getChildren().addAll(vbox);

        stage.setScene(scene);
        stage.show();
    }

    public static class Person {

        private final SimpleStringProperty firstName;
        private final SimpleStringProperty lastName;
        private final SimpleStringProperty email;

        private Person(String fName, String lName, String email) {
            this.firstName = new SimpleStringProperty(fName);
            this.lastName = new SimpleStringProperty(lName);
            this.email = new SimpleStringProperty(email);
        }

        public String getFirstName() {
            return firstName.get();
        }

        public void setFirstName(String fName) {
            firstName.set(fName);
        }

        public String getLastName() {
            return lastName.get();
        }

        public void setLastName(String fName) {
            lastName.set(fName);
        }

        public String getEmail() {
            return email.get();
        }

        public void setEmail(String fName) {
            email.set(fName);
        }
    }

    class EditingCell<S, T> extends TableCell<S, T> {

        private TextField textField;
        private StringConverter converter;

        public EditingCell(StringConverter converter) {
            this.converter = converter;
        }

        public EditingCell() {
            this.converter = new DefaultStringConverter();
        }

        @Override
        public void startEdit() {
            if (!isEmpty()) {
                super.startEdit();
                textField = createTextField(this, converter);
                setText(null);
                setGraphic(textField);
                textField.selectAll();
                textField.requestFocus();
            }
        }

        @Override
        public void cancelEdit() {
            super.cancelEdit();

            setText(converter.toString(getItem()));
            setGraphic(null);
        }

        @Override
        public void updateItem(T item, boolean empty) {
            super.updateItem(item, empty);

            if (empty) {
                setText(null);
                setGraphic(null);
            } else {
                if (isEditing()) {
                    if (textField != null) {
                        textField.setText(getString());
                    }
                    setText(null);
                    setGraphic(textField);
                } else {
                    setText(getString());
                    setGraphic(null);
                }
            }
        }

        private <T> TextField createTextField(final Cell<T> cell, final StringConverter<T> converter) {
            final TextField textField = new TextField(getString());
            textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
            textField.focusedProperty().addListener(new ChangeListener<Boolean>() {
                @Override
                public void changed(ObservableValue<? extends Boolean> arg0,
                        Boolean oldValue, Boolean newValue) {
                    if (!newValue) {
                        cell.commitEdit(converter.fromString(textField.getText()));
                    }
                }
            });
            textField.setOnKeyPressed(new EventHandler<KeyEvent>() {
                @Override
                public void handle(KeyEvent t) {
                    if (t.getCode() == KeyCode.ENTER) {
                        cell.commitEdit(converter.fromString(textField.getText()));
                    } else if (t.getCode() == KeyCode.ESCAPE) {
                        cell.cancelEdit();
                    } else if (t.getCode() == KeyCode.TAB) {
                        cell.commitEdit(converter.fromString(textField.getText()));
                        TableColumn nextColumn = getNextColumn(!t.isShiftDown());
                        if (nextColumn != null) {
                            getTableView().edit(getTableRow().getIndex(), nextColumn);
                        }
                    }
                }
            });
            return textField;
        }

        private TableColumn<S, ?> getNextColumn(boolean forward) {
            List<TableColumn<S, ?>> columns = new ArrayList<>();
            for (TableColumn<S, ?> column : getTableView().getColumns()) {
                columns.addAll(getLeaves(column));
            }
            // There is no other column that supports editing.
            if (columns.size() < 2) {
                return null;
            }
            int currentIndex = columns.indexOf(getTableColumn());
            int nextIndex = currentIndex;
            if (forward) {
                nextIndex++;
                if (nextIndex > columns.size() - 1) {
                    nextIndex = 0;
                }
            } else {
                nextIndex--;
                if (nextIndex < 0) {
                    nextIndex = columns.size() - 1;
                }
            }
            return columns.get(nextIndex);
        }

        private List<TableColumn<S, ?>> getLeaves(
                TableColumn<S, ?> root) {
            List<TableColumn<S, ?>> columns = new ArrayList<>();
            if (root.getColumns().isEmpty()) {
                // We only want the leaves that are editable.
                if (root.isEditable()) {
                    columns.add(root);
                }
                return columns;
            } else {
                for (TableColumn<S, ?> column : root.getColumns()) {
                    columns.addAll(getLeaves(column));
                }
                return columns;
            }
        }

        private String getString() {
            return getItem() == null ? "" : converter.toString(getItem());
        }
    }

}