001/*
002 * (C) Copyright 2006-2008 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 *     Alexandre Russel
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.platform.preview.adapter;
023
024import java.util.ArrayList;
025import java.util.List;
026
027import org.nuxeo.ecm.core.api.Blob;
028import org.nuxeo.ecm.core.api.Blobs;
029import org.nuxeo.ecm.core.api.DocumentModel;
030import org.nuxeo.ecm.platform.preview.api.PreviewException;
031
032/**
033 * @author Alexandre Russel
034 */
035public class ImagePreviewer extends AbstractPreviewer implements MimeTypePreviewer {
036
037    public List<Blob> getPreview(Blob blob, DocumentModel dm) throws PreviewException {
038        List<Blob> blobResults = new ArrayList<Blob>();
039        StringBuffer htmlPage = new StringBuffer();
040        htmlPage.append("<html><head><title>");
041        htmlPage.append(getPreviewTitle(dm));
042        htmlPage.append("</title></head><body>");
043        appendPreviewSettings(htmlPage);
044        htmlPage.append("<img src=\"image\">");
045        Blob mainBlob = Blobs.createBlob(htmlPage.toString(), "text/html", null, "index.html");
046        blob.setFilename("image");
047        blobResults.add(mainBlob);
048        blobResults.add(blob);
049        return blobResults;
050    }
051
052    private static void appendPreviewSettings(StringBuffer sb) {
053        sb.append("<script type=\"text/javascript\">");
054        sb.append("var previewSettings = { ");
055        sb.append("imageOnly: true");
056        sb.append("}");
057        sb.append("</script>");
058    }
059
060}