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, 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.history;
029
030import org.opencms.gwt.client.ui.CmsListItemWidget;
031import org.opencms.gwt.shared.CmsHistoryResourceCollection;
032import org.opencms.gwt.shared.CmsListInfoBean;
033
034import com.google.gwt.core.client.GWT;
035import com.google.gwt.uibinder.client.UiBinder;
036import com.google.gwt.uibinder.client.UiField;
037import com.google.gwt.user.client.ui.Composite;
038import com.google.gwt.user.client.ui.FlowPanel;
039import com.google.gwt.user.client.ui.Widget;
040
041/**
042 * Widget which is used as the container for the table which displays historical versions.<p>
043 */
044public class CmsResourceHistoryView extends Composite {
045
046    /**
047     * The uiBinder interface for this class.<p>
048     */
049    interface CmsResourceHistoryViewUiBinder extends UiBinder<Widget, CmsResourceHistoryView> {
050        // empty
051    }
052
053    /** The uiBinder instance for this widget. */
054    private static CmsResourceHistoryViewUiBinder uiBinder = GWT.create(CmsResourceHistoryViewUiBinder.class);
055
056    /** The box containing the historical version table. */
057    @UiField
058    protected FlowPanel m_box;
059
060    /** A box containing the file information widget. */
061    @UiField
062    protected FlowPanel m_infoBox;
063
064    /** Widget used to show that there are no historical versions. */
065    @UiField
066    protected Widget m_noVersions;
067
068    /**
069     * Creates a new instance.<p>
070     *
071     * @param historyResources the resource history bean
072     *
073     * @param handler the handler class used to perform the list actions
074     */
075    public CmsResourceHistoryView(CmsHistoryResourceCollection historyResources, I_CmsHistoryActionHandler handler) {
076
077        initWidget(uiBinder.createAndBindUi(this));
078        CmsListInfoBean contentInfo = historyResources.getContentInfo();
079        CmsListItemWidget infoWidget = new CmsListItemWidget(contentInfo);
080        m_infoBox.add(infoWidget);
081        if (historyResources.isEmpty()) {
082            m_noVersions.setVisible(true);
083        } else {
084            m_box.add(new CmsResourceHistoryTable(historyResources, handler));
085        }
086    }
087}