Package org.olat.course.nodes.ta

Source Code of org.olat.course.nodes.ta.TaskFolderCallback

/**
* 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.course.nodes.ta;

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

import org.olat.admin.quota.QuotaConstants;
import org.olat.core.commons.modules.bc.FolderRunController;
import org.olat.core.commons.modules.bc.vfs.OlatNamedContainerImpl;
import org.olat.core.commons.modules.bc.vfs.OlatRootFolderImpl;
import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.Component;
import org.olat.core.gui.components.form.Form;
import org.olat.core.gui.components.link.Link;
import org.olat.core.gui.components.link.LinkFactory;
import org.olat.core.gui.components.tabbedpane.TabbedPane;
import org.olat.core.gui.components.velocity.VelocityContainer;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.ControllerEventListener;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.gui.control.generic.closablewrapper.CloseableModalController;
import org.olat.core.gui.control.generic.layouter.LayoutController;
import org.olat.core.gui.control.generic.layouter.Layouts;
import org.olat.core.gui.control.generic.modal.DialogBoxController;
import org.olat.core.gui.control.generic.modal.DialogBoxUIFactory;
import org.olat.core.gui.control.generic.tabbable.ActivateableTabbableDefaultController;
import org.olat.core.gui.translator.PackageTranslator;
import org.olat.core.gui.translator.Translator;
import org.olat.core.logging.OLog;
import org.olat.core.logging.Tracing;
import org.olat.core.util.Util;
import org.olat.core.util.notifications.SubscriptionContext;
import org.olat.core.util.vfs.Quota;
import org.olat.core.util.vfs.QuotaManager;
import org.olat.core.util.vfs.callbacks.FullAccessWithQuotaCallback;
import org.olat.core.util.vfs.callbacks.VFSSecurityCallback;
import org.olat.course.ICourse;
import org.olat.course.assessment.AssessmentHelper;
import org.olat.course.auditing.UserNodeAuditManager;
import org.olat.course.condition.Condition;
import org.olat.course.condition.ConditionEditController;
import org.olat.course.editor.NodeEditController;
import org.olat.course.groupsandrights.CourseGroupManager;
import org.olat.course.nodes.TACourseNode;
import org.olat.course.nodes.ms.MSCourseNodeEditController;
import org.olat.course.nodes.ms.MSEditFormController;
import org.olat.course.properties.CoursePropertyManager;
import org.olat.course.properties.PersistingCoursePropertyManager;
import org.olat.course.run.userview.UserCourseEnvironment;
import org.olat.group.ui.context.BGContextEvent;
import org.olat.modules.ModuleConfiguration;

/**
*   Initial Date:  30.08.2004
*   @author Mike Stock
*  
*   Comment: 
*  
* </pre>
*/

public class TACourseNodeEditController extends ActivateableTabbableDefaultController implements ControllerEventListener
 
  private OLog log = Tracing.createLoggerFor(this.getClass());
 
  public static final String PANE_TAB_CONF_SCORING = "pane.tab.conf.scoring";

  public static final String PANE_TAB_CONF_DROPBOX = "pane.tab.conf.dropbox";

  public static final String PANE_TAB_CONF_TASK = "pane.tab.conf.task";

  public static final String PANE_TAB_CONF_MODULES = "pane.tab.conf.modules";

  public static final String PANE_TAB_ACCESSIBILITY = "pane.tab.accessibility";

  public static final String PANE_TAB_SOLUTION = "pane.tab.solution";
 
  private static final String[] paneKeys = { PANE_TAB_SOLUTION, PANE_TAB_CONF_SCORING, PANE_TAB_CONF_DROPBOX, PANE_TAB_CONF_TASK, PANE_TAB_CONF_MODULES,
      PANE_TAB_ACCESSIBILITY };

  private ICourse course;
  private TACourseNode node;
  private ModuleConfiguration config;

  private VelocityContainer accessabilityVC, solutionVC;
  private VelocityContainer editModules, editTask, editDropbox, editScoring;
  private TabbedPane myTabbedPane;
  private int taskTabPosition, dropboxTabPosition, scoringTabPosition, solutionTabPosition;
  private ModulesForm modulesForm;
  private TaskFormController taskController;
  private DropboxForm dropboxForm;
  private MSEditFormController scoringController;
  private FolderRunController frc;
  private ConditionEditController taskConditionC, dropConditionC, returnboxConditionC, scoringConditionC, solutionConditionC;
  private boolean hasLogEntries; 
  private DialogBoxController dialogBoxController;

  private Link btfButton;
  private Link editScoringConfigButton;
  private Link vfButton;

  /**
   * @param ureq
   * @param wControl
   * @param course
   * @param node
   * @param groupMgr
   */
  public TACourseNodeEditController(UserRequest ureq, WindowControl wControl, ICourse course, TACourseNode node,
      CourseGroupManager groupMgr, UserCourseEnvironment euce) {
    super(ureq, wControl);

    this.node = node;
    //o_clusterOk by guido: save to hold reference to course inside editor
    this.course = course;
    this.config = node.getModuleConfiguration();
    Translator newTranslator = new PackageTranslator(Util.getPackageName(TACourseNodeEditController.class), ureq.getLocale(), new PackageTranslator(Util
        .getPackageName(MSCourseNodeEditController.class), ureq.getLocale()));
    setTranslator(newTranslator);
   
    accessabilityVC = this.createVelocityContainer("edit");
    // Task precondition
    taskConditionC = new ConditionEditController(ureq, getWindowControl(), groupMgr, node.getConditionTask(), "taskConditionForm",
        AssessmentHelper.getAssessableNodes(course.getEditorTreeModel(), node), euce);   
    this.listenTo(taskConditionC);
    if (((Boolean) config.get(TACourseNode.CONF_TASK_ENABLED)).booleanValue()) accessabilityVC.put("taskCondition", taskConditionC
        .getInitialComponent());

    // DropBox precondition
    dropConditionC = new ConditionEditController(ureq, getWindowControl(), groupMgr, node.getConditionDrop(), "dropConditionForm",
        AssessmentHelper.getAssessableNodes(course.getEditorTreeModel(), node), euce);   
    this.listenTo(dropConditionC);
    Boolean hasDropboxValue = ((Boolean) config.get(TACourseNode.CONF_DROPBOX_ENABLED)!=null) ? (Boolean) config.get(TACourseNode.CONF_DROPBOX_ENABLED) : false;
    if (hasDropboxValue) accessabilityVC.put("dropCondition", dropConditionC.getInitialComponent());
       
    //returnbox precondition - use dropbox condition if none defined for returnbox
    Condition dropboxCondition = node.getConditionDrop();   
    Condition returnboxCondition = node.getConditionReturnbox();
    if(dropboxCondition!=null && returnboxCondition!= null && returnboxCondition.getConditionExpression()==null) {
      //old courses: use ConditionExpression from dropbox if none defined for returnbox     
      returnboxCondition = dropboxCondition;
      returnboxCondition.setConditionId(TACourseNode.ACCESS_RETURNBOX);
      node.setConditionReturnbox(returnboxCondition);     
    }
    returnboxConditionC = new ConditionEditController(ureq, getWindowControl(), groupMgr, returnboxCondition, "returnboxConditionForm",
        AssessmentHelper.getAssessableNodes(course.getEditorTreeModel(), node), euce);
    this.listenTo(returnboxConditionC);
    Object returnBoxConf = config.get(TACourseNode.CONF_RETURNBOX_ENABLED);
    //use the dropbox config if none specified for the return box
    boolean returnBoxEnabled = (returnBoxConf !=null) ? ((Boolean) returnBoxConf).booleanValue() : hasDropboxValue;
    if (returnBoxEnabled) accessabilityVC.put("returnboxCondition", returnboxConditionC.getInitialComponent());

    // Scoring precondition
    scoringConditionC = new ConditionEditController(ureq, getWindowControl(), groupMgr, node.getConditionScoring(), "scoringConditionForm",
        AssessmentHelper.getAssessableNodes(course.getEditorTreeModel(), node), euce);   
    this.listenTo(scoringConditionC);
    if (((Boolean) config.get(TACourseNode.CONF_SCORING_ENABLED)).booleanValue()) accessabilityVC.put("scoringCondition", scoringConditionC
        .getInitialComponent());

    // SolutionFolder precondition
    solutionConditionC = new ConditionEditController(ureq, getWindowControl(), groupMgr, node.getConditionSolution(),
        "solutionConditionForm", AssessmentHelper.getAssessableNodes(course.getEditorTreeModel(), node), euce);   
    this.listenTo(solutionConditionC);
    if (((Boolean) config.get(TACourseNode.CONF_SOLUTION_ENABLED)).booleanValue()) accessabilityVC.put("solutionCondition", solutionConditionC
        .getInitialComponent());
   
    // Modules config   
    editModules = this.createVelocityContainer("editModules");
    modulesForm = new ModulesForm("modulesform", getTranslator(), config);
    modulesForm.addListener(this);
    editModules.put(modulesForm);

    // Task config   
    editTask = this.createVelocityContainer("editTask");
    btfButton = LinkFactory.createButton("taskfolder", editTask, this);
   
    taskController = new TaskFormController(ureq, wControl, config);
    listenTo(taskController);
    String taskFolderPath = (String) node.getModuleConfiguration().get(TACourseNode.CONF_TASK_FOLDER_REL_PATH);
    if (taskFolderPath == null) editTask.contextPut("taskfolder", translate("taskfolder.empty"));
    else editTask.contextPut("taskfolder", taskFolderPath);
    editTask.put("taskform", taskController.getInitialComponent());

    // DropBox config   
    editDropbox = this.createVelocityContainer("editDropbox");
    dropboxForm = new DropboxForm("dropboxform", getTranslator(), config);
    dropboxForm.addListener(this);
    editDropbox.put(dropboxForm);

    // Scoring config   
    editScoring = this.createVelocityContainer("editScoring");
    editScoringConfigButton = LinkFactory.createButtonSmall("scoring.config.enable.button", editScoring, this);

    scoringController = new MSEditFormController(ureq, wControl, config);
    listenTo(scoringController);
    editScoring.put("scoringController", scoringController.getInitialComponent());
   
    // if there is already user data available, make for read only
    UserNodeAuditManager am = course.getCourseEnvironment().getAuditManager();
    hasLogEntries = am.hasUserNodeLogs(node);
    editScoring.contextPut("hasLogEntries", new Boolean(hasLogEntries));
    if (hasLogEntries) {
      scoringController.setDisplayOnly(true);
    }
    //Initialstate
    editScoring.contextPut("isOverwriting", new Boolean(false));
   
    // Solution-Tab   
    solutionVC = this.createVelocityContainer("editSolutionFolder");
    vfButton = LinkFactory.createButton("link.solutionFolder", solutionVC, this);
  }

  private VFSSecurityCallback getTaskFolderSecCallback(String relPath) {
    // check if any tasks assigned yet
    CoursePropertyManager cpm = PersistingCoursePropertyManager.getInstance(course);
    List assignedProps = cpm.listCourseNodeProperties(node, null, null, TaskController.PROP_ASSIGNED);
//    return new TaskFolderCallback(relPath, (assignedProps.size() > 0));
    return new TaskFolderCallback(relPath, false); // do not look task folder
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#event(org.olat.core.gui.UserRequest,
   *      org.olat.core.gui.components.Component, org.olat.core.gui.control.Event)
   */
  @Override
  public void event(UserRequest ureq, Component source, Event event) {   
    if (log.isDebug()) log.debug("event source=" + source + " " + event.toString());   
    if (source == btfButton){
      // check if there are already assigned tasks
      CoursePropertyManager cpm = PersistingCoursePropertyManager.getInstance(course);
      List assignedProps = cpm.listCourseNodeProperties(node, null, null, TaskController.PROP_ASSIGNED);
      if (assignedProps.size() == 0) {
        // no task assigned
        String relPath = TACourseNode.getTaskFolderPathRelToFolderRoot(course, node);
        OlatRootFolderImpl rootFolder = new OlatRootFolderImpl(relPath, null);
        OlatNamedContainerImpl namedFolder = new OlatNamedContainerImpl(translate("taskfolder"), rootFolder);
        namedFolder.setLocalSecurityCallback(getTaskFolderSecCallback(relPath));
        frc = new FolderRunController(namedFolder, false, ureq, getWindowControl());
        CloseableModalController cmc = new CloseableModalController(getWindowControl(), translate("folder.close"), frc
            .getInitialComponent());
        cmc.activate();
      } else {
        // already assigned task => open dialog with warn
        String[] args = new String[] { new Integer(assignedProps.size()).toString() };       
        dialogBoxController = this.activateOkCancelDialog(ureq, "", getTranslator().translate("taskfolder.overwriting.confirm", args), dialogBoxController);
        List cs = new ArrayList();
        cs.add(dialogBoxController);
        LayoutController vcc = new LayoutController(Layouts.VERTICAL, cs);             
      }
    } else if (source == modulesForm) {
      if (event == Form.EVNT_FORM_CANCELLED) {
        return;
      } else if (event == Form.EVNT_VALIDATION_OK) {
        config.set(TACourseNode.CONF_TASK_ENABLED, new Boolean(modulesForm.hasTask()));
        config.set(TACourseNode.CONF_DROPBOX_ENABLED, new Boolean(modulesForm.hasDropbox()));       
        config.set(TACourseNode.CONF_RETURNBOX_ENABLED, new Boolean(modulesForm.hasReturnbox()));       
        config.set(TACourseNode.CONF_SCORING_ENABLED, new Boolean(modulesForm.hasScoring()));
        config.set(TACourseNode.CONF_SOLUTION_ENABLED, new Boolean(modulesForm.hasSolution()));
        myTabbedPane.setEnabled(taskTabPosition, modulesForm.hasTask());
        if (modulesForm.hasTask()) {
          accessabilityVC.put("taskCondition", taskConditionC.getInitialComponent());
        } else {
          accessabilityVC.remove(taskConditionC.getInitialComponent());
        }
        myTabbedPane.setEnabled(dropboxTabPosition, modulesForm.hasDropbox());
        if (modulesForm.hasDropbox()) {
          accessabilityVC.put("dropCondition", dropConditionC.getInitialComponent());
        } else {
          accessabilityVC.remove(dropConditionC.getInitialComponent());
        }
        //add/remove returnboxConditionC     
        if (modulesForm.hasReturnbox()) {
          accessabilityVC.put("returnboxCondition", returnboxConditionC.getInitialComponent());
        } else {
          accessabilityVC.remove(returnboxConditionC.getInitialComponent());
        }       
        myTabbedPane.setEnabled(scoringTabPosition, modulesForm.hasScoring());
        if (modulesForm.hasScoring()) {
          accessabilityVC.put("scoringCondition", scoringConditionC.getInitialComponent());
        } else {
          accessabilityVC.remove(scoringConditionC.getInitialComponent());
        }
        myTabbedPane.setEnabled(solutionTabPosition, modulesForm.hasSolution());
        if (modulesForm.hasSolution()) {
          accessabilityVC.put("solutionCondition", solutionConditionC.getInitialComponent());
        } else {
          accessabilityVC.remove(solutionConditionC.getInitialComponent());
        }
       
        fireEvent(ureq, NodeEditController.NODECONFIG_CHANGED_EVENT);
        return;
      }
    } else if (source == dropboxForm) {
      if (event == Form.EVNT_FORM_CANCELLED) {
        return;
      } else if (event == Form.EVNT_VALIDATION_OK) {
        config.set(TACourseNode.CONF_DROPBOX_ENABLEMAIL, new Boolean(dropboxForm.mailEnabled()));
        config.set(TACourseNode.CONF_DROPBOX_CONFIRMATION, dropboxForm.getConfirmation());
        fireEvent(ureq, NodeEditController.NODECONFIG_CHANGED_EVENT);
        return;
      }
    } else if (source == vfButton) {     
      if (log.isDebug()) log.debug("Event for sampleVC");
      // switch to new dialog
      OlatNamedContainerImpl namedContainer = TACourseNode.getNodeFolderContainer(node, course.getCourseEnvironment());
      Quota quota = QuotaManager.getInstance().getCustomQuota(namedContainer.getRelPath());
      if (quota == null) {
        Quota defQuota = QuotaManager.getInstance().getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_NODES);
        quota = QuotaManager.getInstance().createQuota(namedContainer.getRelPath(), defQuota.getQuotaKB(), defQuota.getUlLimitKB());
      }
      VFSSecurityCallback secCallback = new FullAccessWithQuotaCallback(quota);
      namedContainer.setLocalSecurityCallback(secCallback);
      CloseableModalController cmc = new CloseableModalController(getWindowControl(), translate("close"),
        new FolderRunController(namedContainer, false, ureq, getWindowControl()).getInitialComponent());
      cmc.activate();
     
      if (log.isDebug()) log.debug("Switch to sample folder dialog : DONE");
      return;
    } else if (source == editScoringConfigButton){
      scoringController.setDisplayOnly(false);
      editScoring.contextPut("isOverwriting", new Boolean(true));
    }
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#event(org.olat.core.gui.UserRequest,
   *      org.olat.core.gui.control.Controller, org.olat.core.gui.control.Event)
   */
  @Override
  public void event(UserRequest urequest, Controller source, Event event) {
    if (source == taskConditionC) {
      if (event == Event.CHANGED_EVENT) {
        node.setConditionTask(taskConditionC.getCondition());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }else if(event instanceof BGContextEvent) {
        //fired by condition edit controllers if areas / groups created
        //updated other condition controllers -> e.g. change create link to choose
        dropConditionC.updateGroupsAndAreasCheck();
        returnboxConditionC.updateGroupsAndAreasCheck();
        scoringConditionC.updateGroupsAndAreasCheck();
        solutionConditionC.updateGroupsAndAreasCheck();
      }
    } else if (source == dropConditionC) {
      if (event == Event.CHANGED_EVENT) {
        node.setConditionDrop(dropConditionC.getCondition());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }else if(event instanceof BGContextEvent) {
        //fired by condition edit controllers if areas / groups created
        //updated other condition controllers -> e.g. change create link to choose
        taskConditionC.updateGroupsAndAreasCheck();
        scoringConditionC.updateGroupsAndAreasCheck();
        solutionConditionC.updateGroupsAndAreasCheck();
        returnboxConditionC.updateGroupsAndAreasCheck();
      }
    } else if (source == returnboxConditionC) {
      if (event == Event.CHANGED_EVENT) {
        node.setConditionReturnbox(returnboxConditionC.getCondition());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }else if(event instanceof BGContextEvent) {
        //fired by condition edit controllers if areas / groups created
        //updated other condition controllers -> e.g. change create link to choose
        taskConditionC.updateGroupsAndAreasCheck();
        scoringConditionC.updateGroupsAndAreasCheck();
        solutionConditionC.updateGroupsAndAreasCheck();
        dropConditionC.updateGroupsAndAreasCheck();
      }
    } else if (source == scoringConditionC) {
      if (event == Event.CHANGED_EVENT) {
        node.setConditionScoring(scoringConditionC.getCondition());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }else if(event instanceof BGContextEvent) {
        //fired by condition edit controllers if areas / groups created
        //updated other condition controllers -> e.g. change create link to choose
        dropConditionC.updateGroupsAndAreasCheck();
        returnboxConditionC.updateGroupsAndAreasCheck();
        taskConditionC.updateGroupsAndAreasCheck();
        solutionConditionC.updateGroupsAndAreasCheck();
      }
    } else if (source == solutionConditionC) {
      if (event == Event.CHANGED_EVENT) {
        node.setConditionSolution(solutionConditionC.getCondition());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }else if(event instanceof BGContextEvent) {
        //fired by condition edit controllers if areas / groups created
        //updated other condition controllers -> e.g. change create link to choose
        dropConditionC.updateGroupsAndAreasCheck();
        returnboxConditionC.updateGroupsAndAreasCheck();
        scoringConditionC.updateGroupsAndAreasCheck();
        taskConditionC.updateGroupsAndAreasCheck();
      }
    } else if (source == dialogBoxController) {     
      if (DialogBoxUIFactory.isOkEvent(event)) {
        // ok: open task folder
        String relPath = TACourseNode.getTaskFolderPathRelToFolderRoot(course, node);
        OlatRootFolderImpl rootFolder = new OlatRootFolderImpl(relPath, null);
        OlatNamedContainerImpl namedFolder = new OlatNamedContainerImpl(translate("taskfolder"), rootFolder);
        namedFolder.setLocalSecurityCallback(getTaskFolderSecCallback(relPath));
        frc = new FolderRunController(namedFolder, false, urequest, getWindowControl());
        CloseableModalController cmc = new CloseableModalController(getWindowControl(), translate("folder.close"), frc
            .getInitialComponent());
        cmc.activate();
        fireEvent(urequest, Event.CHANGED_EVENT);
      }
    } else if (source == taskController) {
      if (event == Event.CANCELLED_EVENT) {
        return;
      } else if (event == Event.DONE_EVENT) {
        config.set(TACourseNode.CONF_TASK_TYPE, taskController.getTaskType());
        config.set(TACourseNode.CONF_TASK_TEXT, taskController.getOptionalText());
        config.set(TACourseNode.CONF_TASK_SAMPLING_WITH_REPLACEMENT, new Boolean(taskController.getIsSamplingWithReplacement()));
        config.setBooleanEntry(TACourseNode.CONF_TASK_PREVIEW, taskController.isTaskPreviewMode());
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
        return;
      }
    } else if (source == scoringController) {
      if (event == Event.CANCELLED_EVENT) {
        if (hasLogEntries) {
          scoringController.setDisplayOnly(true);}
        editScoring.contextPut("isOverwriting", new Boolean(false));
        return;       
      } else if (event == Event.DONE_EVENT){
        scoringController.updateModuleConfiguration(config);
        fireEvent(urequest, NodeEditController.NODECONFIG_CHANGED_EVENT);
      }
    }
    else {     
      log.warn("Can not handle event in TACourseNodeEditController source=" + source + " " + event.toString());
    }
  }

  /**
   * @see org.olat.core.gui.control.generic.tabbable.TabbableController#addTabs(org.olat.core.gui.components.TabbedPane)
   */
  public void addTabs(TabbedPane theTabbedPane) {
    this.myTabbedPane = theTabbedPane;
    myTabbedPane.addTab(translate(PANE_TAB_ACCESSIBILITY), accessabilityVC);
    myTabbedPane.addTab(translate(PANE_TAB_CONF_MODULES), editModules);
    taskTabPosition = myTabbedPane.addTab(translate(PANE_TAB_CONF_TASK), editTask);
    dropboxTabPosition = myTabbedPane.addTab(translate(PANE_TAB_CONF_DROPBOX), editDropbox);
    scoringTabPosition = myTabbedPane.addTab(translate(PANE_TAB_CONF_SCORING), editScoring);
    solutionTabPosition  = myTabbedPane.addTab(translate(PANE_TAB_SOLUTION), solutionVC);

    Boolean bool = (Boolean) config.get(TACourseNode.CONF_TASK_ENABLED);
    myTabbedPane.setEnabled(taskTabPosition, (bool != null) ? bool.booleanValue() : true);
    bool = (Boolean) config.get(TACourseNode.CONF_DROPBOX_ENABLED);
    myTabbedPane.setEnabled(dropboxTabPosition, (bool != null) ? bool.booleanValue() : true);
    bool = (Boolean) config.get(TACourseNode.CONF_SCORING_ENABLED);
    myTabbedPane.setEnabled(scoringTabPosition, (bool != null) ? bool.booleanValue() : true);
   
    bool = (Boolean) config.get(TACourseNode.CONF_SOLUTION_ENABLED);
    myTabbedPane.setEnabled(solutionTabPosition, (bool != null) ? bool.booleanValue() : true);
  }

  /**
   * @see org.olat.core.gui.control.DefaultController#doDispose(boolean)
   */
  @Override
  protected void doDispose() {
    //child controllers registered with listenTo() get disposed in BasicController
  }

  @Override
  public String[] getPaneKeys() {
    return paneKeys;
  }

  @Override
  public TabbedPane getTabbedPane() {
    return myTabbedPane;
  }

}

class TaskFolderCallback implements VFSSecurityCallback {

  private boolean folderLocked;
  private Quota folderQuota = null;

  /**
   * @param folderLocked
   */
  public TaskFolderCallback(String relPath, boolean folderLocked) {
    this.folderLocked = folderLocked;
    initTaskFolderQuota(relPath);
  }

  private void initTaskFolderQuota(String relPath) {
    QuotaManager qm = QuotaManager.getInstance();
    folderQuota = qm.getCustomQuota(relPath);
    if (folderQuota == null) {
      Quota defQuota = qm.getDefaultQuota(QuotaConstants.IDENTIFIER_DEFAULT_POWER);
      folderQuota = QuotaManager.getInstance().createQuota(relPath, defQuota.getQuotaKB(), defQuota.getUlLimitKB());
    }
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#canRead(org.olat.modules.bc.Path)
   */
  public boolean canRead() {
    return true;
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#canWrite(org.olat.modules.bc.Path)
   */
  public boolean canWrite() {
    return !folderLocked;
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#canDelete(org.olat.modules.bc.Path)
   */
  public boolean canDelete() {
    return !folderLocked;
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#canList(org.olat.modules.bc.Path)
   */
  public boolean canList() {
    return true;
  }

  /**
   * @see org.olat.core.util.vfs.callbacks.VFSSecurityCallback#canCopy()
   */
  public boolean canCopy() {
    return true;
  }
 
  /**
   * @see org.olat.core.util.vfs.callbacks.VFSSecurityCallback#canDeleteRevisionsPermanently()
   */
  public boolean canDeleteRevisionsPermanently() {
    return false;
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#getQuotaKB(org.olat.modules.bc.Path)
   */
  public Quota getQuota() {
    return folderQuota;
  }

  /**
   * @see org.olat.core.util.vfs.callbacks.VFSSecurityCallback#setQuota(org.olat.admin.quota.Quota)
   */
  public void setQuota(Quota quota) {
    folderQuota = quota;
  }

  /**
   * @see org.olat.modules.bc.callbacks.SecurityCallback#getSubscriptionContext()
   */
  public SubscriptionContext getSubscriptionContext() {
    return null;
  }
}
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