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/**
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* Copyright (C) 2017 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.vaadin.component;
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import java.util.Optional;
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import org.vaadin.viritin.fields.LazyComboBox.FilterableCountProvider;
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import org.vaadin.viritin.fields.LazyComboBox.FilterablePagingProvider;
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import com.vaadin.data.Property;
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import com.vaadin.data.Validator.InvalidValueException;
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import com.vaadin.data.fieldgroup.FieldGroup;
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import com.vaadin.data.util.converter.Converter.ConversionException;
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import com.vaadin.server.AbstractErrorMessage.ContentMode;
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import com.vaadin.server.ErrorMessage;
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import com.vaadin.server.ErrorMessage.ErrorLevel;
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import com.vaadin.server.UserError;
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import com.vaadin.ui.Button;
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import com.vaadin.ui.Button.ClickListener;
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import com.vaadin.ui.Component;
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import com.vaadin.ui.CssLayout;
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import com.vaadin.ui.themes.ValoTheme;
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import eu.etaxonomy.cdm.vaadin.component.ButtonFactory;
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import eu.etaxonomy.cdm.vaadin.event.NestedButtonStateUpdater;
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import eu.etaxonomy.cdm.vaadin.ui.UIMessages;
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/**
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* @author a.kohlbecker
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* @since May 24, 2017
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*
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*/
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public class ToOneRelatedEntityCombobox<V extends Object> extends CompositeCustomField<V>
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implements ToOneRelatedEntityField<V>, ReloadableSelect, EntitySupport<V> {
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private static final long serialVersionUID = 6277565876657520311L;
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public static final String PRIMARY_STYLE = "v-related-entity-combobox";
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private Class<V> type;
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private CssLayout container = new CssLayout();
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private ReloadableLazyComboBox<V> lazySelect;
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private Button addButton = ButtonFactory.CREATE_NEW.createButton();
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private Button editButton = ButtonFactory.EDIT_ITEM.createButton();
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private NestedButtonStateUpdater<V> buttonUpdater;
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public ToOneRelatedEntityCombobox(String caption, Class<V> type){
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this.type = type;
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setCaption(caption);
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lazySelect = new ReloadableLazyComboBox<V>(type);
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lazySelect.setRequiredError(UIMessages.REQUIRED_SELECT_MISSING);
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addStyledComponents(lazySelect, addButton, editButton);
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addSizedComponents(lazySelect, container);
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// lazySelect.setImmediate(true); // should cause immediate validation, however,
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// it does not work here, therefore we validate in the commitSelect() method during the commit
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lazySelect.addValueChangeListener(e -> {
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// update the itemContainer immediately so that the edit button acts on the chosen item
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commitSelect();
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});
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected Component initContent() {
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container.addComponents(lazySelect, addButton, editButton);
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setPrimaryStyleName(PRIMARY_STYLE);
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addDefaultStyles();
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return container;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Class<? extends V> getType() {
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return type;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void addDefaultStyles() {
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container.addStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Optional<FieldGroup> getFieldGroup() {
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return Optional.empty();
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}
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/**
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* @return the select
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*/
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public ReloadableLazyComboBox<V> getSelect() {
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return lazySelect;
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}
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/**
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* {@inheritDoc}
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*/
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public void loadFrom(FilterablePagingProvider<V> filterablePagingProvider, FilterableCountProvider filterableCountProvider, int pageLength) {
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lazySelect.loadFrom(filterablePagingProvider, filterableCountProvider, pageLength);
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}
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/**
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* reload the selected entity from the persistent storage
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*/
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@Override
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public void reload() {
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getSelect().reload();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setAddButtonEnabled(boolean enabled) {
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addButton.setEnabled(enabled);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void addClickListenerAddEntity(ClickListener listener) {
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addButton.addClickListener(listener);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setEditButtonEnabled(boolean enabled) {
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editButton.setEnabled(enabled);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void addClickListenerEditEntity(ClickListener listener) {
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editButton.addClickListener(listener);
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}
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@Override
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public void replaceEntityValue(V bean){
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lazySelect.replaceEntityValue(bean);
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}
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@Override
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public void selectNewItem(V bean){
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setValue(bean);
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}
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/**
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* Returns always currently selected item by
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*
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* {@inheritDoc}
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*/
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@Override
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public V getValue() {
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commitSelect();
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return lazySelect.getValue();
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}
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/**
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*
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*/
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public void commitSelect() {
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try {
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setComponentError(null);
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lazySelect.commit();
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} catch (InvalidValueException ex){
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UserError componentError = new UserError(ex.getHtmlMessage(), ContentMode.HTML, ErrorLevel.ERROR);
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lazySelect.setComponentError(componentError);
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setValue(V newFieldValue) throws com.vaadin.data.Property.ReadOnlyException, ConversionException {
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lazySelect.refresh();
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lazySelect.setValue(newFieldValue);
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lazySelect.markAsDirty();
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}
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@Override
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public void setPropertyDataSource(Property newDataSource) {
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lazySelect.setPropertyDataSource(newDataSource);
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if(buttonUpdater != null){
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buttonUpdater.updateButtons(lazySelect.getValue());
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Property getPropertyDataSource() {
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return lazySelect.getPropertyDataSource();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setReadOnly(boolean readOnly) {
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super.setReadOnly(readOnly);
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setDeepReadOnly(readOnly, getContent(), null);
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if(buttonUpdater != null){
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buttonUpdater.updateButtons(lazySelect.getValue());
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}
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setNestedButtonStateUpdater(NestedButtonStateUpdater<V> buttonUpdater) {
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this.buttonUpdater = buttonUpdater;
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lazySelect.addValueChangeListener(buttonUpdater);
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}
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@Override
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public void validate() throws InvalidValueException {
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super.validate();
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lazySelect.validate();
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}
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@Override
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public ErrorMessage getErrorMessage() {
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ErrorMessage errorMessage = lazySelect.getErrorMessage();
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return errorMessage;
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}
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@Override
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public boolean isValid() {
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return lazySelect.isValid();
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}
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@Override
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public void setRequired(boolean required) {
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super.setRequired(required);
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lazySelect.setRequired(required);
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}
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@Override
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public boolean isRequired() {
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return lazySelect.isRequired();
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}
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@Override
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public void setImmediate(boolean immediate) {
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super.setImmediate(immediate);
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lazySelect.setImmediate(immediate);
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}
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@Override
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public void commit() throws SourceException, InvalidValueException {
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lazySelect.commit(); // we must not use the commitSelect() here to allow InvalidValueException to be handled by the caller
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super.commit();
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}
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@Override
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public void setComponentError(ErrorMessage componentError) {
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lazySelect.setComponentError(componentError);
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super.setComponentError(componentError);
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}
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}
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