/*
 * Copyright 2011 Instituto Superior Tecnico
 * 
 *      https://fenix-ashes.ist.utl.pt/
 * 
 *   This file is part of the vaadin-framework.
 *
 *   The vaadin-framework Infrastructure is free software: you can
 *   redistribute it and/or modify it under the terms of the GNU Lesser General
 *   Public License as published by the Free Software Foundation, either version
 *   3 of the License, or (at your option) any later version.*
 *
 *   vaadin-framework is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with vaadin-framework. If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package pt.ist.vaadinframework.ui;

import java.util.ResourceBundle;

import pt.ist.vaadinframework.data.AbstractBufferedContainer;
import pt.utl.ist.fenix.tools.util.i18n.Language;

import com.vaadin.data.Container;
import com.vaadin.data.Container.PropertySetChangeEvent;
import com.vaadin.data.Property;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Field;
import com.vaadin.ui.Table;

public class TransactionalTable extends Table {
    private final String bundlename;

    private transient ResourceBundle bundle;

    private final PropertySetChangeListener headerUpdater = new PropertySetChangeListener() {
        @Override
        public void containerPropertySetChange(PropertySetChangeEvent event) {
            if (event.getContainer() instanceof AbstractBufferedContainer) {
                for (Object propertyId : event.getContainer().getContainerPropertyIds()) {
                    computeHeader((AbstractBufferedContainer<?, ?, ?>) event.getContainer(), propertyId);
                }
            }
        }
    };

    public TransactionalTable(String bundlename) {
        super();
        this.bundlename = bundlename;
    }

    protected ResourceBundle getBundle() {
        if (bundle == null) {
            bundle = ResourceBundle.getBundle(bundlename, Language.getLocale());
        }
        return bundle;
    }

    @Override
    protected Object getPropertyValue(Object rowId, Object colId, Property property) {
        Object v = super.getPropertyValue(rowId, colId, property);
        if (v instanceof Field) {
            Field field = (Field) v;
            // field.setWriteThrough(isWriteThrough());
            // field.setReadOnly(isReadOnly());
            if (isImmediate() && field instanceof AbstractComponent) {
                ((AbstractComponent) field).setImmediate(true);
            }
        }
        return v;
    }

    public void refresh() {
        refreshRenderedCells();
    }

    @Override
    public void setContainerDataSource(Container newDataSource) {
        if (getContainerDataSource() != null && getContainerDataSource() instanceof PropertySetChangeNotifier) {
            ((PropertySetChangeNotifier) getContainerDataSource()).removeListener(headerUpdater);
        }
        if (newDataSource instanceof AbstractBufferedContainer) {
            for (Object propertyId : newDataSource.getContainerPropertyIds()) {
                computeHeader((AbstractBufferedContainer<?, ?, ?>) newDataSource, propertyId);
            }
        }
        if (newDataSource instanceof PropertySetChangeNotifier) {
            ((PropertySetChangeNotifier) newDataSource).addListener(headerUpdater);
        }
        super.setContainerDataSource(newDataSource);
    }

    private void computeHeader(AbstractBufferedContainer<?, ?, ?> container, Object propertyId) {
        setColumnHeader(propertyId, CaptionUtils.makeCaption(getBundle(), container, propertyId, this));
    }
}