001/*
002 * (C) Copyright 2006-2013 Nuxeo SAS (http://nuxeo.com/) and contributors.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the GNU Lesser General Public License
006 * (LGPL) version 2.1 which accompanies this distribution, and is available at
007 * http://www.gnu.org/licenses/lgpl.html
008 *
009 * This library is distributed in the hope that it will be useful,
010 * but WITHOUT ANY WARRANTY; without even the implied warranty of
011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012 * Lesser General Public License for more details.
013 *
014 * Contributors:
015 *     Vladimir Pasquier <vpasquier@nuxeo.com>
016 *
017 * $Id: JOOoConvertPluginImpl.java 18651 2007-05-13 20:28:53Z sfermigier $
018 */
019
020package org.nuxeo.ecm.platform.thumbnail.seam;
021
022import java.io.Serializable;
023
024import org.jboss.seam.ScopeType;
025import org.jboss.seam.annotations.In;
026import org.jboss.seam.annotations.Name;
027import org.jboss.seam.annotations.Scope;
028import org.nuxeo.ecm.core.api.Blob;
029import org.nuxeo.ecm.core.api.CoreSession;
030import org.nuxeo.ecm.core.api.DocumentLocation;
031import org.nuxeo.ecm.core.api.DocumentModel;
032import org.nuxeo.ecm.core.api.thumbnail.ThumbnailAdapter;
033import org.nuxeo.ecm.platform.ui.web.api.NavigationContext;
034import org.nuxeo.ecm.platform.ui.web.util.ComponentUtils;
035import org.nuxeo.ecm.platform.url.api.DocumentView;
036import org.nuxeo.ecm.platform.util.RepositoryLocation;
037
038/**
039 * Thumbnail Manager seam bean
040 *
041 * @since 5.7
042 */
043@Name("thumbnailManager")
044@Scope(ScopeType.CONVERSATION)
045public class ThumbnailManagerBean implements Serializable {
046
047    private static final long serialVersionUID = 1L;
048
049    @In(create = true, required = false)
050    protected transient CoreSession documentManager;
051
052    @In(required = true, create = true)
053    protected transient NavigationContext navigationContext;
054
055    /**
056     * @since 5.7
057     */
058    public void downloadThumbnail(DocumentView docView) {
059        if (docView != null) {
060            DocumentLocation docLoc = docView.getDocumentLocation();
061            if (documentManager == null) {
062                RepositoryLocation loc = new RepositoryLocation(docLoc.getServerName());
063                navigationContext.setCurrentServerLocation(loc);
064                documentManager = navigationContext.getOrCreateDocumentManager();
065            }
066            DocumentModel doc = documentManager.getDocument(docLoc.getDocRef());
067            if (doc != null) {
068                ThumbnailAdapter thumbnailDoc = doc.getAdapter(ThumbnailAdapter.class);
069                Blob thumbnail = thumbnailDoc.getThumbnail(documentManager);
070                if (thumbnail == null) {
071                    return;
072                }
073                ComponentUtils.download(doc, null, thumbnail, thumbnail.getFilename(), "thumbnail");
074            }
075        }
076    }
077}