91 lines
2.6 KiB
Java
91 lines
2.6 KiB
Java
package com.baeldung;
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import com.vaadin.flow.component.Key;
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import com.vaadin.flow.component.KeyNotifier;
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import com.vaadin.flow.component.button.Button;
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import com.vaadin.flow.component.icon.VaadinIcon;
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import com.vaadin.flow.component.orderedlayout.HorizontalLayout;
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import com.vaadin.flow.component.orderedlayout.VerticalLayout;
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import com.vaadin.flow.component.textfield.TextField;
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import com.vaadin.flow.data.binder.Binder;
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import com.vaadin.flow.spring.annotation.SpringComponent;
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import com.vaadin.flow.spring.annotation.UIScope;
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import org.springframework.beans.factory.annotation.Autowired;
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@SpringComponent
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@UIScope
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public class EmployeeEditor extends VerticalLayout implements KeyNotifier {
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private final EmployeeRepository repository;
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private Employee employee;
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TextField firstName = new TextField("First name");
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TextField lastName = new TextField("Last name");
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Button save = new Button("Save", VaadinIcon.CHECK.create());
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Button cancel = new Button("Cancel");
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Button delete = new Button("Delete", VaadinIcon.TRASH.create());
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HorizontalLayout actions = new HorizontalLayout(save, cancel, delete);
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Binder<Employee> binder = new Binder<>(Employee.class);
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private ChangeHandler changeHandler;
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@Autowired
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public EmployeeEditor(EmployeeRepository repository) {
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this.repository = repository;
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add(firstName, lastName, actions);
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binder.bindInstanceFields(this);
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setSpacing(true);
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save.getElement().getThemeList().add("primary");
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delete.getElement().getThemeList().add("error");
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addKeyPressListener(Key.ENTER, e -> save());
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save.addClickListener(e -> save());
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delete.addClickListener(e -> delete());
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cancel.addClickListener(e -> editEmployee(employee));
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setVisible(false);
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}
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void delete() {
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repository.delete(employee);
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changeHandler.onChange();
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}
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void save() {
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repository.save(employee);
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changeHandler.onChange();
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}
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public interface ChangeHandler {
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void onChange();
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}
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public final void editEmployee(Employee c) {
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if (c == null) {
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setVisible(false);
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return;
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}
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final boolean persisted = c.getId() != null;
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if (persisted) {
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employee = repository.findById(c.getId()).get();
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} else {
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employee = c;
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}
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cancel.setVisible(persisted);
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binder.setBean(employee);
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setVisible(true);
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firstName.focus();
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}
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public void setChangeHandler(ChangeHandler h) {
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changeHandler = h;
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}
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}
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