001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://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 GmbH & Co. KG, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://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.widgets;
029
030import org.opencms.util.CmsStringUtil;
031
032/**
033 * Provides a widget that allows access to the available OpenCms external link galleries, for use on a widget dialog.<p>
034 *
035 * @since 6.0.0
036 */
037public class CmsLinkGalleryWidget extends A_CmsGalleryWidget {
038
039    /**
040     * Creates a new external link gallery widget.<p>
041     */
042    public CmsLinkGalleryWidget() {
043
044        // empty constructor is required for class registration
045        this("");
046    }
047
048    /**
049     * Creates a new external link gallery widget with the given configuration.<p>
050     *
051     * @param configuration the configuration to use
052     */
053    public CmsLinkGalleryWidget(String configuration) {
054
055        super(configuration);
056    }
057
058    /**
059     * @see org.opencms.widgets.A_CmsGalleryWidget#getNameLower()
060     */
061    @Override
062    public String getNameLower() {
063
064        return "link";
065    }
066
067    /**
068     * @see org.opencms.widgets.A_CmsGalleryWidget#getNameUpper()
069     */
070    @Override
071    public String getNameUpper() {
072
073        return "Link";
074    }
075
076    /**
077     * @see org.opencms.widgets.I_CmsADEWidget#getWidgetName()
078     */
079    @Override
080    public String getWidgetName() {
081
082        return CmsLinkGalleryWidget.class.getName();
083    }
084
085    /**
086     * @see org.opencms.widgets.I_CmsWidget#newInstance()
087     */
088    public I_CmsWidget newInstance() {
089
090        return new CmsLinkGalleryWidget(getConfiguration());
091    }
092
093    /**
094     * @see org.opencms.widgets.A_CmsGalleryWidget#showPreview(java.lang.String)
095     */
096    @Override
097    public boolean showPreview(String value) {
098
099        return CmsStringUtil.isNotEmpty(value) && value.startsWith("/");
100    }
101}