001/*
002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.webapp.filemanager;
023
024import org.jboss.seam.ScopeType;
025import org.jboss.seam.annotations.Factory;
026import org.jboss.seam.annotations.In;
027import org.jboss.seam.annotations.Name;
028import org.jboss.seam.annotations.Scope;
029import org.nuxeo.ecm.core.api.DocumentModel;
030import org.nuxeo.ecm.core.api.blobholder.BlobHolder;
031import org.nuxeo.ecm.platform.ui.web.api.NavigationContext;
032
033@Name("blobHolderGenerator")
034@Scope(ScopeType.EVENT)
035public class BlobHolderGenerator {
036
037    @In(create = true, required = false)
038    private NavigationContext navigationContext;
039
040    @Factory(value = "currentDocumentAsBlobHolder", scope = ScopeType.EVENT)
041    public BlobHolder getCurrentBlobHolder() {
042        if (navigationContext == null) {
043            return null;
044        }
045        DocumentModel currentDocument = navigationContext.getCurrentDocument();
046        return getBlobHolder(currentDocument);
047    }
048
049    public BlobHolder getBlobHolder(DocumentModel document) {
050        if (document != null) {
051            return document.getAdapter(BlobHolder.class);
052        } else {
053            return null;
054        }
055    }
056}