Package org.olat.repository.handlers

Source Code of org.olat.repository.handlers.WebDocumentHandler

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/

package org.olat.repository.handlers;

import java.util.ArrayList;
import java.util.List;

import org.olat.core.gui.UserRequest;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.generic.layout.MainLayoutController;
import org.olat.core.id.Identity;
import org.olat.core.id.OLATResourceable;
import org.olat.core.logging.AssertException;
import org.olat.core.util.coordinate.LockResult;
import org.olat.fileresource.types.AnimationFileResource;
import org.olat.fileresource.types.DocFileResource;
import org.olat.fileresource.types.FileResource;
import org.olat.fileresource.types.ImageFileResource;
import org.olat.fileresource.types.MovieFileResource;
import org.olat.fileresource.types.PdfFileResource;
import org.olat.fileresource.types.PowerpointFileResource;
import org.olat.fileresource.types.SoundFileResource;
import org.olat.fileresource.types.XlsFileResource;
import org.olat.repository.RepositoryEntry;
import org.olat.repository.controllers.AddFileResourceController;
import org.olat.repository.controllers.IAddController;
import org.olat.repository.controllers.RepositoryAddCallback;
import org.olat.repository.controllers.WizardCloseResourceController;


/**
* Initial Date:  Apr 6, 2004
*
* @author Mike Stock
*
* Comment: 
*
*/
public class WebDocumentHandler extends FileHandler implements RepositoryHandler {
 
  private static final boolean LAUNCHEABLE = false;
  private static final boolean DOWNLOADEABLE = true;
  private static final boolean EDITABLE = false;
  private static final List supportedTypes;
 
 
  /**
   * Default constructor.
   */
  public WebDocumentHandler() { super(); }

  static { // initialize supported types
    supportedTypes = new ArrayList(5);
    supportedTypes.add(FileResource.GENERIC_TYPE_NAME);
    supportedTypes.add(DocFileResource.TYPE_NAME);
    supportedTypes.add(XlsFileResource.TYPE_NAME);
    supportedTypes.add(PowerpointFileResource.TYPE_NAME);
    supportedTypes.add(PdfFileResource.TYPE_NAME);
    supportedTypes.add(SoundFileResource.TYPE_NAME);
    supportedTypes.add(MovieFileResource.TYPE_NAME);
    supportedTypes.add(AnimationFileResource.TYPE_NAME);
    supportedTypes.add(ImageFileResource.TYPE_NAME);
  }
 
  /**
   * @see org.olat.repository.handlers.RepositoryHandler#getSupportedTypes()
   */
  public List getSupportedTypes() {
    return supportedTypes;
  }
 
  /**
   * @see org.olat.repository.handlers.RepositoryHandler#supportsLaunch()
   */
  public boolean supportsLaunch() { return LAUNCHEABLE; }
  /**
   * @see org.olat.repository.handlers.RepositoryHandler#supportsDownload()
   */
  public boolean supportsDownload() { return DOWNLOADEABLE; }
  /**
   * @see org.olat.repository.handlers.RepositoryHandler#supportsEdit()
   */
  public boolean supportsEdit() { return EDITABLE; }
 
 
  /**
   * @see org.olat.repository.handlers.RepositoryHandler#getLaunchController(org.olat.core.id.OLATResourceable java.lang.String, org.olat.core.gui.UserRequest, org.olat.core.gui.control.WindowControl)
   */
  public MainLayoutController getLaunchController(OLATResourceable res, String initialViewIdentifier, UserRequest ureq, WindowControl wControl) {
    /* For the time beeing, disable launching web ressources...
    FileResourceManager frm = FileResourceManager.getInstance();
    ureq.getDispatchResult().setResultingMediaResource(frm.getAsInlineMediaResource(res));
    */
    return null;
  }

  /**
   * @see org.olat.repository.handlers.RepositoryHandler#getEditorController(org.olat.core.id.OLATResourceable org.olat.core.gui.UserRequest, org.olat.core.gui.control.WindowControl)
   */
  public Controller getEditorController(OLATResourceable res, UserRequest ureq, WindowControl wControl) {
    throw new AssertException("a web document is not editable!!! res-id:"+res.getResourceableId());
  }

  /**
   * @see org.olat.repository.handlers.RepositoryHandler#getAddController(org.olat.repository.controllers.RepositoryAddCallback, java.lang.Object, org.olat.core.gui.UserRequest, org.olat.core.gui.control.WindowControl)
   */
  public IAddController getAddController(RepositoryAddCallback callback, Object userObject, UserRequest ureq, WindowControl wControl) {
    return new AddFileResourceController(callback, supportedTypes, ureq, wControl);
  }

  protected String getDeletedFilePrefix() {
    return "del_webdoc_";
  }

  /**
   *
   * @see org.olat.repository.handlers.RepositoryHandler#acquireLock(org.olat.core.id.OLATResourceable, org.olat.core.id.Identity)
   */
  public LockResult acquireLock(OLATResourceable ores, Identity identity) {
    //nothing to do
    return null;
  }
 
  /**
   *
   * @see org.olat.repository.handlers.RepositoryHandler#releaseLock(org.olat.core.util.coordinate.LockResult)
   */
  public void releaseLock(LockResult lockResult) {
    //nothing to do since nothing locked
  }
 
  /**
   *
   * @see org.olat.repository.handlers.RepositoryHandler#isLocked(org.olat.core.id.OLATResourceable)
   */
  public boolean isLocked(OLATResourceable ores) {
    return false;
  }
 
  public WizardCloseResourceController getCloseResourceController(UserRequest ureq, WindowControl wControl, RepositoryEntry repositoryEntry) {
    throw new AssertException("not implemented");
  }
}
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