EDIT

/**

* Copyright (C) 2017 EDIT

* European Distributed Institute of Taxonomy

* http://www.e-taxonomy.eu

*

* The contents of this file are subject to the Mozilla Public License Version 1.1

* See LICENSE.TXT at the top of this package for the full license terms.

*/

package eu.etaxonomy.vaadin.component;

import java.util.Optional;

import com.vaadin.data.Container;

import com.vaadin.data.Property;

import com.vaadin.data.fieldgroup.FieldGroup;

import com.vaadin.ui.Button;

import com.vaadin.ui.Button.ClickListener;

import com.vaadin.ui.Component;

import com.vaadin.ui.CssLayout;

import com.vaadin.ui.ListSelect;

import com.vaadin.ui.themes.ValoTheme;

import eu.etaxonomy.cdm.vaadin.component.ButtonFactory;

import eu.etaxonomy.cdm.vaadin.event.NestedButtonStateUpdater;

/**

 * @author a.kohlbecker

 * @since May 24, 2017

 *

 */

public class ToOneRelatedEntityListSelect<V extends Object> extends CompositeCustomField<V> implements ToOneRelatedEntityField<V> {

    private static final long serialVersionUID = 6277565876657520311L;

    public static final String PRIMARY_STYLE = "v-related-entity-list-select";

    private Class<V> type;

    private CssLayout container = new CssLayout();

    private ListSelect select;

    NestedButtonStateUpdater<V> buttonUpdater;

    private Button addButton = ButtonFactory.ADD_ITEM.createButton();

    private Button editButton  = ButtonFactory.EDIT_ITEM.createButton();

    public ToOneRelatedEntityListSelect(String caption, Class<V> type, Container dataSource){

        this.type = type;

        setCaption(caption);

        select = new ListSelect(caption, dataSource);

        addStyledComponents(select, addButton, editButton);

        addSizedComponent(select);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected Component initContent() {

        container.addComponents(select, addButton, editButton);

        setPrimaryStyleName(PRIMARY_STYLE);

        addDefaultStyles();

        return container;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public Class<? extends V> getType() {

        return type;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    protected void addDefaultStyles() {

        container.addStyleName(ValoTheme.LAYOUT_COMPONENT_GROUP);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public Optional<FieldGroup> getFieldGroup() {

        return Optional.empty();

    }

    /**

     * @return the select

     * @deprecated list specific method should not be in

     * the interface

     */

    @Deprecated

    public ListSelect getSelect() {

        return select;

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void setPropertyDataSource(Property newDataSource) {

        select.setPropertyDataSource(newDataSource);

        if(buttonUpdater != null){

            buttonUpdater.updateButtons((V) select.getValue());

        }

    }

    @Override

    public Property getPropertyDataSource() {

        return select.getPropertyDataSource();

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void addClickListenerAddEntity(ClickListener listener) {

        addButton.addClickListener(listener);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void setAddButtonEnabled(boolean enabled) {

        addButton.setEnabled(enabled);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void addClickListenerEditEntity(ClickListener listener) {

        editButton.addClickListener(listener);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void setEditButtonEnabled(boolean enabled) {

        editButton.setEnabled(enabled);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void selectNewItem(V bean) {

      select.addItem(bean);

      select.select(bean);

    }

    /**

     * {@inheritDoc}

     */

    @Override

    public void setNestedButtonStateUpdater(NestedButtonStateUpdater<V> buttonUpdater) {

        this.buttonUpdater = buttonUpdater;

        select.addValueChangeListener(buttonUpdater);

    }

}