org.eclipse.osbp.vaaclipse.ui.preferences.addon/src/org/eclipse/osbp/vaaclipse/ui/preferences/addon/internal/StringFieldEditorRenderer.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.vaaclipse.ui.preferences.addon.internal;

import javax.inject.Inject;

import org.eclipse.osbp.vaaclipse.ui.preferences.addon.internal.exception.ValidationFailedException;
import org.eclipse.osbp.vaaclipse.ui.preferences.model.StringFieldEditor;

import com.vaadin.ui.CssLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextField;

/**
 * @author rushan
 *
 */
public class StringFieldEditorRenderer extends FieldEditorRenderer<String> {

	@Inject
	StringFieldEditor editor;
	private TextField field;

	@Override
	public void render() {

		field = new TextField();
		field.setValue(getValue());
		// field.setCaption(editor.getLabel());

		CssLayout layout = new CssLayout();
		Label label = new Label(editor.getLabel());
		layout.addComponent(label);
		layout.addComponent(field);

		component = layout;
	}

	@Override
	public String getValue() {
		return getPreferences().get(editor.getPreferenceName(),
				editor.getDefaultValueTyped());
	}

	@Override
	public void setValue(String value) {
		if (value != null)
			getPreferences().put(editor.getPreferenceName(), value);
	}

	@Override
	public void validate() throws ValidationFailedException {
		if (field.getValue() != null && editor.getMaxLength() != null) {
			if (field.getValue().length() > editor.getMaxLength()) {
				throw new ValidationFailedException(editor.getLabel(),
						"The length of text should not be greater than "
								+ editor.getMaxLength());
			}
		}
	}

	@Override
	public void save() {
		setValue(field.getValue());
	}
}