001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (C) Alkacon Software (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, 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.gwt.client.ui.contextmenu;
029
030import org.opencms.gwt.client.ui.input.category.CmsCategoryDialog;
031import org.opencms.gwt.shared.CmsContextMenuEntryBean;
032import org.opencms.util.CmsUUID;
033
034import com.google.gwt.user.client.Command;
035
036/**
037 * Context menu entry for the 'Assign Categories' dialog.<p>
038 */
039public final class CmsCategories implements I_CmsHasContextMenuCommand, I_CmsContextMenuCommand {
040
041    /** Parameter specifying if the category tree should be collapsed when shown first. */
042    private static final String PARAM_COLLAPSED = "displayCollapsed";
043
044    /**
045     * Hidden utility class constructor.<p>
046     */
047    private CmsCategories() {
048
049        // nothing to do
050    }
051
052    /**
053     * Returns the context menu command according to
054     * {@link org.opencms.gwt.client.ui.contextmenu.I_CmsHasContextMenuCommand}.<p>
055     *
056     * @return the context menu command
057     */
058    public static I_CmsContextMenuCommand getContextMenuCommand() {
059
060        return new CmsCategories();
061    }
062
063    /**
064     * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#execute(org.opencms.util.CmsUUID, org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuHandler, org.opencms.gwt.shared.CmsContextMenuEntryBean)
065     */
066    public void execute(
067        final CmsUUID structureId,
068        final I_CmsContextMenuHandler handler,
069        CmsContextMenuEntryBean bean) {
070
071        CmsCategoryDialog dialog = new CmsCategoryDialog(structureId, new Command() {
072
073            public void execute() {
074
075                handler.refreshResource(structureId);
076            }
077        }, (bean.getParams() != null) && Boolean.parseBoolean(bean.getParams().get(PARAM_COLLAPSED)));
078        dialog.center();
079    }
080
081    /**
082     * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#getItemWidget(org.opencms.util.CmsUUID, org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuHandler, org.opencms.gwt.shared.CmsContextMenuEntryBean)
083     */
084    public A_CmsContextMenuItem getItemWidget(
085        CmsUUID structureId,
086        I_CmsContextMenuHandler handler,
087        CmsContextMenuEntryBean bean) {
088
089        return null;
090    }
091
092    /**
093     * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#hasItemWidget()
094     */
095    public boolean hasItemWidget() {
096
097        return false;
098    }
099
100}