001/*
002 * (C) Copyright 2006-2016 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 *     Tiago Cardoso <[email protected]>
018 */
019package org.nuxeo.ecm.platform.threed.adapter;
020
021import org.nuxeo.ecm.core.api.Blob;
022import org.nuxeo.ecm.core.api.Blobs;
023import org.nuxeo.ecm.core.api.DocumentModel;
024import org.nuxeo.ecm.platform.preview.adapter.AbstractPreviewer;
025import org.nuxeo.ecm.platform.preview.adapter.MimeTypePreviewer;
026import org.nuxeo.ecm.platform.preview.api.PreviewException;
027import org.nuxeo.ecm.platform.threed.ThreeDDocument;
028import org.nuxeo.ecm.platform.threed.TransmissionThreeD;
029import org.nuxeo.ecm.platform.threed.service.AutomaticLOD;
030import org.nuxeo.ecm.platform.threed.service.ThreeDService;
031import org.nuxeo.ecm.platform.web.common.vh.VirtualHostHelper;
032import org.nuxeo.runtime.api.Framework;
033
034import java.util.ArrayList;
035import java.util.List;
036
037/*
038 * 3D content mimetype previewer.
039 *
040 * @since 8.4
041 */
042public class ThreeDPreviewer extends AbstractPreviewer implements MimeTypePreviewer {
043
044    public List<Blob> getPreview(Blob blob, DocumentModel dm) throws PreviewException {
045        ThreeDDocument threeDDocument = dm.getAdapter(ThreeDDocument.class);
046        ThreeDService threeDService = Framework.getService(ThreeDService.class);
047        if (threeDDocument.getTransmissionThreeDs().isEmpty()) {
048            return new ArrayList<>();
049        }
050        AutomaticLOD previewLOD = threeDService.getAutomaticLODs().iterator().next();
051        return buildPreview(threeDDocument.getTransmissionThreeD(previewLOD.getName()), dm);
052    }
053
054    protected List<Blob> buildPreview(TransmissionThreeD transmissionThreeD, DocumentModel dm) {
055        List<Blob> blobResults = new ArrayList<>();
056        String basePath = VirtualHostHelper.getContextPathProperty();
057        StringBuffer html = new StringBuffer();
058        html.append("<html><head>");
059        html.append("<title>" + getPreviewTitle(dm) + "</title>");
060        html.append(String.format(
061                "<script src=\"%s/platform-3d/bower_components/webcomponentsjs/webcomponents-lite.min.js\"></script>",
062                basePath));
063        html.append(String.format("<link rel=\"import\" href=\"%s/platform-3d/nuxeo-3d-viewer.html\">", basePath));
064        html.append(String.format("<nuxeo-3d-viewer src=\"%s\" loader=\"complete\">",
065                transmissionThreeD.getBlob().getFilename()));
066        blobResults.add(transmissionThreeD.getBlob());
067        html.append("</nuxeo-3d-viewer>");
068        html.append("</body>");
069        Blob mainBlob = Blobs.createBlob(html.toString(), "text/html", null, "index.html");
070        blobResults.add(0, mainBlob);
071        return blobResults;
072    }
073
074}