org.eclipse.emf.ecp.controls.vaadin.internal.TextControlVaadinRenderer.java Source code

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Here is the source code for org.eclipse.emf.ecp.controls.vaadin.internal.TextControlVaadinRenderer.java

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/*******************************************************************************
 * Copyright (c) 2014 Dennis Melzer and others.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Dennis - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.ecp.controls.vaadin.internal;

import org.apache.commons.lang3.StringUtils;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.emf.ecore.EStructuralFeature.Setting;
import org.eclipse.emf.ecp.controls.vaadin.AbstractVaadinSimpleControlRenderer;
import org.eclipse.emf.ecp.controls.vaadin.ECPTextFieldToModelUpdateValueStrategy;
import org.eclipse.emf.ecp.controls.vaadin.ECPTextFieldToTargetUpdateValueStrategy;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;

import com.vaadin.ui.Component;
import com.vaadin.ui.TextArea;
import com.vaadin.ui.TextField;

/**
 * The Vaadin Renderer for a string value.
 *
 * @author Dennis Melzer
 *
 */
public class TextControlVaadinRenderer extends AbstractVaadinSimpleControlRenderer {

    @Override
    protected UpdateValueStrategy getTargetToModelStrategy(Component component, Setting setting) {
        return new ECPTextFieldToTargetUpdateValueStrategy();
    }

    @Override
    protected UpdateValueStrategy getModelToTargetStrategy(Component component) {
        return new ECPTextFieldToModelUpdateValueStrategy();
    }

    @Override
    protected Component createControl() {
        final Setting setting = getVElement().getDomainModelReference().getIterator().next();
        final IItemPropertyDescriptor itemPropertyDescriptor = getItemPropertyDescriptor(setting);
        if (itemPropertyDescriptor.isMultiLine(null)) {
            final TextArea textArea = new TextArea();
            textArea.setNullRepresentation(StringUtils.EMPTY);
            return textArea;
        }
        final TextField textField = new TextField();
        textField.setNullRepresentation(StringUtils.EMPTY);
        return textField;
    }

    /**
     * {@inheritDoc}
     *
     * @see org.eclipse.emf.ecp.controls.vaadin.AbstractVaadinSimpleControlRenderer#getUnsetLabel()
     */
    @Override
    protected String getUnsetLabel() {
        return VaadinRendererMessages.TextControlVaadinRenderer_NoTextSetClickToSetText;
    }

}