001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: https://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: https://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ui.util;
029
030import org.opencms.util.CmsStringUtil;
031
032import com.vaadin.ui.Component;
033
034/**
035 *
036 */
037public class CmsStyleVariable {
038
039    /** The component to set the CSS class to. */
040    private Component m_component;
041
042    /** The current value. */
043    private String m_style;
044
045    /**
046     * Constructor.<p>
047     *
048     * @param component the component
049     */
050    public CmsStyleVariable(Component component) {
051
052        m_component = component;
053    }
054
055    /**
056     * Returns the style.<p>
057     *
058     * @return the style
059     */
060    public String getStyle() {
061
062        return m_style;
063    }
064
065    /**
066     * Sets the style.<p>
067     *
068     * @param style the style to set
069     */
070    public void setStyle(String style) {
071
072        if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_style)) {
073            m_component.removeStyleName(m_style);
074        }
075        m_style = style;
076        if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_style)) {
077            m_component.addStyleName(m_style);
078        }
079    }
080
081}