org.jdal.vaadin.ui.form.FormDialog.java Source code

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Here is the source code for org.jdal.vaadin.ui.form.FormDialog.java

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/*
 * Copyright 2009-2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jdal.vaadin.ui.form;

import java.io.Serializable;

import org.jdal.dao.Dao;
import org.jdal.vaadin.ui.FormUtils;
import org.jdal.vaadin.ui.table.ButtonListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;

import com.vaadin.data.util.BeanItem;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.ComponentContainer;
import com.vaadin.ui.Form;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Window;

/**
 * Window that hold a form for use as Dialog
 * 
 * @author Jose Luis Martin - (jlm@joseluismartin.info)
 * @since 1.1
 */
public class FormDialog extends Window {

    @Autowired
    private Dao<Object, Serializable> persistentService;
    private Form form;
    private ButtonListener acceptButtonListener;
    private ButtonListener cancelButtonListener;
    @Autowired
    private MessageSource messageSource;
    private boolean dirty = false;

    public FormDialog() {
        super();
    }

    public FormDialog(Form form) {
        this.form = form;
    }

    public FormDialog(Form form, String caption) {
        super(caption);
        this.form = form;
    }

    /**
     * @param caption
     * @param content
     */
    public FormDialog(String caption, ComponentContainer content) {
        super(caption, content);
    }

    /**
     * @param caption
     */
    public FormDialog(String caption) {
        super(caption);
    }

    public void init() {
        setContent(form);
        getContent().setSizeUndefined();
        center();

        acceptButtonListener = new AcceptButtonListener();
        cancelButtonListener = new CancelButtonListener();

        HorizontalLayout buttonLayout = new HorizontalLayout();
        Button acceptButton = FormUtils.newButton(acceptButtonListener);
        Button cancelButton = FormUtils.newButton(cancelButtonListener);
        buttonLayout.setSpacing(true);
        buttonLayout.addComponent(acceptButton);
        buttonLayout.addComponent(cancelButton);
        HorizontalLayout footer = new HorizontalLayout();
        footer.addComponent(buttonLayout);
        footer.setSizeFull();
        footer.setComponentAlignment(buttonLayout, Alignment.TOP_CENTER);
        form.setFooter(footer);
        form.setSizeFull();
        form.getLayout().setSizeFull();
    }

    /**
     * @return the form
     */
    public Form getForm() {
        return form;
    }

    /**
     * @param form the form to set
     */
    public void setForm(Form form) {
        this.form = form;
    }

    /**
     * @return the persistentService
     */
    public Dao<Object, Serializable> getPersistentService() {
        return persistentService;
    }

    /**
     * @param persistentService the persistentService to set
     */
    public void setPersistentService(Dao<Object, Serializable> persistentService) {
        this.persistentService = persistentService;
    }

    /**
     * @return the acceptButtonListener
     */
    public ButtonListener getAcceptButtonListener() {
        return acceptButtonListener;
    }

    /**
     * @param acceptButtonListener the acceptButtonListener to set
     */
    public void setAcceptButtonListener(ButtonListener acceptButtonListener) {
        this.acceptButtonListener = acceptButtonListener;
    }

    /**
     * @return the cancelButtonListener
     */
    public ButtonListener getCancelButtonListener() {
        return cancelButtonListener;
    }

    /**
     * @param cancelButtonListener the cancelButtonListener to set
     */
    public void setCancelButtonListener(ButtonListener cancelButtonListener) {
        this.cancelButtonListener = cancelButtonListener;
    }

    private class AcceptButtonListener extends ButtonListener {

        public AcceptButtonListener() {
            String caption = messageSource == null ? "Accept" : messageSource.getMessage("accept", null, null);
            setCaption(caption);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void buttonClick(ClickEvent event) {
            form.commit();
            BeanItem<?> item = (BeanItem<?>) form.getItemDataSource();
            persistentService.save(item.getBean());
            setDirty(true);
            close();
        }

    }

    private class CancelButtonListener extends ButtonListener {

        public CancelButtonListener() {
            String caption = messageSource == null ? "Cancel" : messageSource.getMessage("cancel", null, null);
            setCaption(caption);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void buttonClick(ClickEvent event) {
            form.discard();
            close();
        }

    }

    /**
     * @return the messageSource
     */
    public MessageSource getMessageSource() {
        return messageSource;
    }

    /**
     * @param messageSource the messageSource to set
     */
    public void setMessageSource(MessageSource messageSource) {
        this.messageSource = messageSource;
    }

    /**
     * @return true if dirty
     */
    public boolean isDirty() {
        return dirty;
    }

    /**
     * @param dirty 
     */
    public void setDirty(boolean dirty) {
        this.dirty = dirty;
    }
}