eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/section/media/MediaRepresentationElement.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.ui.section.media;
  11
  12 import java.io.IOException;
  13 import java.util.Collection;
  14
  15 import org.apache.http.HttpException;
  16 import org.eclipse.core.runtime.IProgressMonitor;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.core.runtime.jobs.Job;
  20 import org.eclipse.swt.events.SelectionListener;
  21
  22 import eu.etaxonomy.cdm.common.URI;
  23 import eu.etaxonomy.cdm.common.UriUtils;
  24 import eu.etaxonomy.cdm.common.media.CdmImageInfo;
  25 import eu.etaxonomy.cdm.model.media.ImageFile;
  26 import eu.etaxonomy.cdm.model.media.MediaRepresentation;
  27 import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
  28 import eu.etaxonomy.taxeditor.store.StoreUtil;
  29 import eu.etaxonomy.taxeditor.ui.element.AbstractFormSection;
  30 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
  31 import eu.etaxonomy.taxeditor.ui.element.ICdmFormElement;
  32 import eu.etaxonomy.taxeditor.ui.element.LayoutConstants;
  33 import eu.etaxonomy.taxeditor.ui.element.TextWithLabelElement;
  34 import eu.etaxonomy.taxeditor.ui.section.AbstractEntityCollectionElement;
  35
  36 /**
  37  * <p>MediaRepresentationElement class.</p>
  38  *
  39  * @author n.hoffmann
  40  * @created Mar 24, 2010
  41  */
  42 public class MediaRepresentationElement extends AbstractEntityCollectionElement<MediaRepresentation> {
  43
  44         private MediaRepresentationPartSection section_mediaRepresentationPart;
  45         private TextWithLabelElement text_mimeType;
  46         private TextWithLabelElement text_suffix;
  47
  48         public MediaRepresentationElement(CdmFormFactory cdmFormFactory,
  49                         AbstractFormSection section,
  50                         MediaRepresentation element, SelectionListener removeListener,
  51                         int style) {
  52                 super(cdmFormFactory, section, element, removeListener, null, style);
  53         }
  54
  55         @Override
  56         public void createControls(ICdmFormElement element, int style) {
  57                 text_mimeType = formFactory.createTextWithLabelElement(element, "Mime Type", null, style);
  58                 text_suffix = formFactory.createTextWithLabelElement(element, "Suffix", null, style);
  59                 section_mediaRepresentationPart = formFactory.createMediaRepresentationPartSection(getConversationHolder(), element, StoreUtil.getSectionStyle(MediaRepresentationPartSection.class, MediaRepresentation.class.getCanonicalName()));
  60                 section_mediaRepresentationPart.setLayoutData(LayoutConstants.FILL_HORIZONTALLY(2, 1));
  61         }
  62
  63         @Override
  64         public void setEntity(MediaRepresentation element) {
  65                 this.entity = element;
  66                 section_mediaRepresentationPart.setEntity(element);
  67                 text_mimeType.setText(element.getMimeType());
  68                 text_suffix.setText(element.getSuffix());
  69         }
  70
  71         @Override
  72         public void handleEvent(Object eventSource) {
  73                 if(eventSource == text_mimeType){
  74                         getEntity().setMimeType(text_mimeType.getText());
  75                 }
  76                 else if(eventSource == text_suffix){
  77                         getEntity().setSuffix(text_suffix.getText());
  78                 }
  79                 // FIXME HACK automatically set the mime type to the first mediaRepresentationPart's mimetype
  80                 else if(eventSource == section_mediaRepresentationPart){
  81                         firePropertyChangeEvent(this);
  82                         new Job("Set mime type") {
  83                 @Override
  84                 protected IStatus run(IProgressMonitor monitor) {
  85                     Collection<MediaRepresentationPart> imageFileElements = section_mediaRepresentationPart.getCollection(section_mediaRepresentationPart.getEntity());
  86                     if(! imageFileElements.iterator().hasNext()){
  87                         return Status.CANCEL_STATUS;
  88                     }
  89                     MediaRepresentationPart mediaRepresentationPart = imageFileElements.iterator().next();
  90                     if(mediaRepresentationPart == null || !(mediaRepresentationPart instanceof ImageFile)){
  91                         return Status.CANCEL_STATUS;
  92                     }
  93                     ImageFile imageFile = (ImageFile) mediaRepresentationPart;
  94
  95                     URI uri = imageFile.getUri();
  96                     if(!UriUtils.isServiceAvailable(uri)){
  97                         return Status.CANCEL_STATUS;
  98                     }
  99                     try {
 100                         CdmImageInfo imageInfo = CdmImageInfo.NewInstance(uri, 10000);
 101                         String mimeType = imageInfo.getMimeType();
 102                         getEntity().setMimeType(mimeType);
 103                         getEntity().setSuffix(imageInfo.getSuffix());
 104                         MediaRepresentationElement.this.getLayoutComposite().getDisplay().asyncExec(()->{
 105                             text_mimeType.setText(mimeType);
 106                             text_suffix.setText(imageInfo.getSuffix());
 107                         });
 108                     }
 109                     //theses exceptions do not need to be logged
 110                     //especially because this happens with every key stroke
 111                     catch (IOException|HttpException e) {
 112                         // ignore
 113                     }
 114                     return Status.OK_STATUS;
 115                 }
 116             }.schedule();
 117                 }
 118         }
 119 }