Открывая программно TopComponent

Question

Я открывающимися в TopComponent для DataObject с этим кодом после выполнения действия:

TopComponent tc = MultiViews.createMultiView("text/experiment+xml", expDO); 
tc.open(); 
tc.requestActive(); 

Это работает отлично, но если я дважды щелкните на узле DataObject, новый TopComponent является открыт, хотя TopComponent только открыт для него.

Однако, если я только открываю TopComponet с двойным щелчком, всегда открыт один и единственный TopComponent для DataObject.

Такое поведение наблюдается, когда я открываю TopComponent с кодом выше. Я подозреваю, что TopComponent не зарегистрирован в TopComponent.registry, но я не знаю, как этого добиться.

Любая помощь приветствуется.

Edit: Это реализация DataObject (я избегал аннотаций, которые регистрируют мим-типа и действия пользователя):

public class ExperimentDataObject extends MultiDataObject implements PropertyChangeListener { 

private final Logger LOGGER = Logger.getLogger(this.getClass().getName()); 
private Lookup lookup; 
private InstanceContent ic = new InstanceContent(); 

private final Project project; 
private final Experiment experiment; 





public ExperimentDataObject(FileObject expFO, MultiFileLoader loader) throws DataObjectExistsException, IOException { 
    super(expFO, loader); 
    registerEditor("text/experiment+xml", true); 



    this.project = FileOwnerQuery.getOwner(expFO); 
    this.experiment = getObject(); 

    this.experiment.setConfigFile(expFO); 

    experiment.addPropertyChangeListener(this); 

    expFO.setAttribute(AwsItem.ITEM_TYPE, AwsItemType.EXPERIMENT); 
    expFO.setAttribute(AwsItem.PROP_PROJECT, this.project); 



    LOGGER.trace("ExperimentDataObject " + this.getName() + " created."); 
} 

@Override 
protected int associateLookup() { 
    return 1; 
} 


private class MyOpenCookie implements OpenCookie { 
    public void open(){ 
     TopComponent tc = MultiViews.createMultiView("text/experiment+xml", ExperimentDataObject.this); 
     tc.open(); 
     tc.requestActive(); 
    } 
} 


/** 
* Lookup implementation. 
* @return 
*/ 
@Override 
public Lookup getLookup() { 

    if (lookup == null) { 
     lookup = new AbstractLookup(ic); 
     ic.add(this); 
     ic.add(project); 
     ic.add(experiment); 
     ic.add(new MyOpenCookie()); 
    } 

    LOGGER.trace("ExperimentDO.getLookup() called."); 

    return lookup; 
} 


/** 
* Creates the ExperimentDataNode for this DataObject 
* @return 
*/ 
@Override 
protected Node createNodeDelegate() { 
    return new ExperimentDataNode(this); 
} 




/** 
* Generates the experiment java object.<br> 
* It must be created when the DataObject is constructed, in this way, the instance object is in 
* the lookup of the DataObject. 
* 
* @return Experiment instance object 
*/ 
private Experiment getObject() throws IOException { 

    XStream xstream = new XStream(new PureJavaReflectionProvider()); 
    xstream.processAnnotations(Experiment.class); 

    return (Experiment) xstream.fromXML(FileUtil.toFile(this.getPrimaryFile())); 
} 



/** 
* Saves the experiment java object to the config FileObject.<br>Doesn't matter if the experiment object has charged dataConfig in its DataItem's, because the object Experiment.ChannelData.dataItems is transient and they are not serialized. 
*/ 
public void saveConfig() throws IOException { 

    FileLock doFileLock = this.getPrimaryFile().lock(); 

    String xmlStr; 
    XStream xstream = new XStream(new DomDriver()); 
    xstream.processAnnotations(Experiment.class); 
    xmlStr = xstream.toXML(experiment); 

    byte[] bytes = xmlStr.getBytes(Charset.forName("UTF-8")); 

    OutputStream os = this.getPrimaryFile().getOutputStream(doFileLock); 
    os.write(bytes); 
    os.flush(); 

    os.close(); 
    doFileLock.releaseLock(); 
    os = null; 
} 



/** 
* Detects change events in the the AwsItem object.<br> 

Свойства изменения могут быть уволены из AwsItem или из объектов ChannelData в AwsItem * * @param ЭВТ */ @Override общественного недействительными propertyChange (PropertyChangeEvent ЭВТ) {

if (evt.getPropertyName() == AwsItem.PROP_CONFIG) { 

      SwingUtilities.invokeLater(new Runnable() { 
       public void run() { 

        try { 
         saveConfig(); 
        } catch (IOException ex) { 
         LOGGER.warn("Problem saving changes in AwsItem.", ex); 
        } 
       } 
      }); 
    } 
} 


} 

И это код DataNode: общественный класс ExperimentDataNode расширяет DataNode {

public static final String EXPERIMENT_NODE_ICON = "com/aws/experiment/resources/experiment.png"; 
private final ExperimentDataObject expDO; 

private final Logger LOGGER = Logger.getLogger(this.getClass().getName()); 


public ExperimentDataNode(ExperimentDataObject expDO) { 
    super(expDO, Children.LEAF); 
    this.expDO = expDO; 
} 






@Override 
public Action[] getActions(boolean context) { 
    return new Action[]{ 
     SystemAction.get(OpenAction.class), 
     SystemAction.get(RenameAction.class), 
     SystemAction.get(DeleteAction.class), 
    }; 
} 





public String getHtmlDisplayName() { 

    String result = this.getDataObject().getName(); 

    if (result != null) return result; 
    else return "Experiment"; 
} 



@Override 
public boolean canRename() { 
    return true; 
} 



/** 
* Renames the DataNode and the DataObject.<br> 
* Also renames the object Experiment that DataObject represents. 
* @param name 
* @param renameDO 
*/ 
@Override 
public void setName(String name, boolean renameDO) { 

    super.setName(name, true); 

    Experiment exp = this.expDO.getLookup().lookup(Experiment.class); 
    exp.setName(name); 

} 







@Override 
public boolean canDestroy() { 
    return true; 
} 




/** 
* Deletes the DataObject and the data file associated to it. 
* @throws IOException 
*/ 
@Override 
public void destroy() throws IOException { 

    SwingUtilities.invokeLater(new Runnable() { 

     public void run() { 

      Mode editorMode = WindowManager.getDefault().findMode("editor"); 
      TopComponent[] openTopComponentsInEditorMode = editorMode.getTopComponents(); 

      for (TopComponent tc : openTopComponentsInEditorMode) { 

       if (tc.getLookup().lookup(DataObject.class) == expDO) { 
        tc.close(); 
       } 
      } 

      try { 
       Experiment experiment = expDO.getLookup().lookup(Experiment.class); 
       experiment.deleteChannelData(); 
       expDO.delete(); 
       fireNodeDestroyed(); 

      } catch (IOException ex) { 
       LOGGER.warn("Problem deleting item experiment.", ex); 
      } 

     } 
    }); 


} 




} 

Answer 1

импорт org.openide.cookies.EditorCookie;

EditorCookie ec = expDO.getLookup(). Lookup (EditorCookie.class); ec.openDocument();

ИЛИ

импорта org.openide.cookies.OpenCookie;

OpenCookie ec = expDO.getLookup(). Lookup (OpenCookie.class); ec.open();

Если OpenCookie имеет значение NULL, то в вашем DataObject добавьте отсутствующее Cookie, используя один из следующих методов.

public class MyMultiDataObject extends MultiDataObject { 

    public MyMultiDataObject(FileObject fileObj, DataLoader loader) 
      throws DataObjectExistsException { 
     super(fileObj, loader); 
     getCookieSet().add(new MyOpenCookie()); 
    } 

    private class MyOpenCookie implements OpenCookie { 
     public void open(){ 
      //Open your desired TopCompnent; Call your current double click action that has the desired behavior 
     } 
    } 
} 

или еще лучше, просто вызовите метод MultiDataObject.regiserEditor (...) в конструкторе;

public class MyMultiDataObject extends MultiDataObject { 

    public MyMultiDataObject(FileObject fileObj, DataLoader loader) 
      throws DataObjectExistsException { 
     super(fileObj, loader); 
     registerEditor("text/experiment+xml", true); 
    } 
} 

Взятые из MultiDataObject

/** Utility method to register editor for this {@link DataObject}. 
    * Call it from constructor with appropriate mimeType. The system will 
    * make sure that appropriate cookies ({@link Openable}, {@link Editable}, 
    * {@link CloseCookie}, {@link EditorCookie}, {@link SaveAsCapable}, 
    * {@link LineCookie} are registered into {@link #getCookieSet()}. 
    * <p> 
    * The selected editor is <a href="@org-netbeans-core-multiview@/org/netbeans/core/api/multiview/MultiViews.html"> 
    * MultiView component</a>, if requested (this requires presence of 
    * the <a href="@org-netbeans-core-multiview@/overview-summary.html">MultiView API</a> 
    * in the system. Otherwise it is plain {@link CloneableEditor}. 
    * 
    * @param mimeType mime type to associate with 
    * @param useMultiview should the used component be multiview? 
    * @since 7.27 
    */ 
    protected final void registerEditor(final String mimeType, boolean useMultiview) { 
     MultiDOEditor.registerEditor(this, mimeType, useMultiview); 
    }