extlibraryeditor.java

EMF、GEF官方例子源代码

    return contentOutlinePage;
  }

  /**
   * This accesses a cached version of the property sheet.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public IPropertySheetPage getPropertySheetPage()
  {
    if (propertySheetPage == null)
    {
      propertySheetPage =
        new ExtendedPropertySheetPage(editingDomain)
        {
          public void setSelectionToViewer(List selection)
          {
            EXTLibraryEditor.this.setSelectionToViewer(selection);
            EXTLibraryEditor.this.setFocus();
          }

          public void setActionBars(IActionBars actionBars)
          {
            super.setActionBars(actionBars);
            getActionBarContributor().shareGlobalActions(this, actionBars);
          }
        };
      propertySheetPage.setPropertySourceProvider(new AdapterFactoryContentProvider(adapterFactory));
    }

    return propertySheetPage;
  }

  /**
   * This deals with how we want selection in the outliner to affect the other views.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void handleContentOutlineSelection(ISelection selection)
  {
    if (currentViewerPane != null && !selection.isEmpty() && selection instanceof IStructuredSelection)
    {
      Iterator selectedElements = ((IStructuredSelection)selection).iterator();
      if (selectedElements.hasNext())
      {
        // Get the first selected element.
        //
        Object selectedElement = selectedElements.next();

        // If it's the selection viewer, then we want it to select the same selection as this selection.
        //
        if (currentViewerPane.getViewer() == selectionViewer)
        {
          ArrayList selectionList = new ArrayList();
          selectionList.add(selectedElement);
          while (selectedElements.hasNext())
          {
            selectionList.add(selectedElements.next());
          }

          // Set the selection to the widget.
          //
          selectionViewer.setSelection(new StructuredSelection(selectionList));
        }
        else
        {
          // Set the input to the widget.
          //
          if (currentViewerPane.getViewer().getInput() != selectedElement)
          {
            currentViewerPane.getViewer().setInput(selectedElement);
            currentViewerPane.setTitle(selectedElement);
          }
        }
      }
    }
  }

  /**
   * This is for implementing {@link IEditorPart} and simply tests the command stack.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public boolean isDirty()
  {
    return ((BasicCommandStack)editingDomain.getCommandStack()).isSaveNeeded();
  }

  /**
   * This is for implementing {@link IEditorPart} and simply saves the model file.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void doSave(IProgressMonitor progressMonitor)
  {
    // Do the work within an operation because this is a long running activity that modifies the workbench.
    //
    WorkspaceModifyOperation operation =
      new WorkspaceModifyOperation()
      {
        // This is the method that gets invoked when the operation runs.
        //
        public void execute(IProgressMonitor monitor)
        {
          // Save the resources to the file system.
          //
          boolean first = true;
          for (Iterator i = editingDomain.getResourceSet().getResources().iterator(); i.hasNext(); )
          {
            Resource resource = (Resource)i.next();
            if ((first || !resource.getContents().isEmpty() || isPersisted(resource)) && !editingDomain.isReadOnly(resource))
            {
              try
              {
                savedResources.add(resource);
                resource.save(Collections.EMPTY_MAP);
              }
              catch (Exception exception)
              {
                resourceToDiagnosticMap.put(resource, analyzeResourceProblems(resource, exception));
              }
              first = false;
            }
          }
        }
      };

    updateProblemIndication = false;
    try
    {
      // This runs the options, and shows progress.
      //
      new ProgressMonitorDialog(getSite().getShell()).run(true, false, operation);

      // Refresh the necessary state.
      //
      ((BasicCommandStack)editingDomain.getCommandStack()).saveIsDone();
      firePropertyChange(IEditorPart.PROP_DIRTY);
    }
    catch (Exception exception)
    {
      // Something went wrong that shouldn't.
      //
      EXTLibraryEditorPlugin.INSTANCE.log(exception);
    }
    updateProblemIndication = true;
    updateProblemIndication();
  }

  /**
   * This returns wether something has been persisted to the URI of the specified resource.
   * The implementation uses the URI converter from the editor's resource set to try to open an input stream. 
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected boolean isPersisted(Resource resource)
  {
    boolean result = false;
    try
    {
      InputStream stream = editingDomain.getResourceSet().getURIConverter().createInputStream(resource.getURI());
      if (stream != null)
      {
        result = true;
        stream.close();
      }
    }
    catch (IOException e)
    {
    }
    return result;
  }

  /**
   * This always returns true because it is not currently supported.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public boolean isSaveAsAllowed()
  {
    return true;
  }

  /**
   * This also changes the editor's input.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void doSaveAs()
  {
    SaveAsDialog saveAsDialog= new SaveAsDialog(getSite().getShell());
    saveAsDialog.open();
    IPath path= saveAsDialog.getResult();
    if (path != null)
    {
      IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(path);
      if (file != null)
      {
        doSaveAs(URI.createPlatformResourceURI(file.getFullPath().toString()), new FileEditorInput(file));
      }
    }
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void doSaveAs(URI uri, IEditorInput editorInput)
  {
    ((Resource)editingDomain.getResourceSet().getResources().get(0)).setURI(uri);
    setInputWithNotify(editorInput);
    setPartName(editorInput.getName());
    IProgressMonitor progressMonitor =
      getActionBars().getStatusLineManager() != null ?
        getActionBars().getStatusLineManager().getProgressMonitor() :
        new NullProgressMonitor();
    doSave(progressMonitor);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void gotoMarker(IMarker marker)
  {
    try
    {
      if (marker.getType().equals(EValidator.MARKER))
      {
        String uriAttribute = marker.getAttribute(EValidator.URI_ATTRIBUTE, null);
        if (uriAttribute != null)
        {
          URI uri = URI.createURI(uriAttribute);
          EObject eObject = editingDomain.getResourceSet().getEObject(uri, true);
          if (eObject != null)
          {
            setSelectionToViewer(Collections.singleton(editingDomain.getWrapper(eObject)));
          }
        }
      }
    }
    catch (CoreException exception)
    {
      EXTLibraryEditorPlugin.INSTANCE.log(exception);
    }
  }

  /**
   * This is called during startup.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void init(IEditorSite site, IEditorInput editorInput)
  {
    setSite(site);
    setInputWithNotify(editorInput);
    setPartName(editorInput.getName());
    site.setSelectionProvider(this);
    site.getPage().addPartListener(partListener);
    ResourcesPlugin.getWorkspace().addResourceChangeListener(resourceChangeListener, IResourceChangeEvent.POST_CHANGE);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setFocus()
  {
    if (currentViewerPane != null)
    {
      currentViewerPane.setFocus();
    }
    else
    {
      getControl(getActivePage()).setFocus();
    }
  }

  /**
   * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void addSelectionChangedListener(ISelectionChangedListener listener)
  {
    selectionChangedListeners.add(listener);
  }

  /**
   * This implements {@link org.eclipse.jface.viewers.ISelectionProvider}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void removeSelectionChangedListener(ISelectionChangedListener listener)
  {
    selectionChangedListeners.remove(listener);
  }

  /**
   * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to return this editor's overall selection.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public ISelection getSelection()
  {
    return editorSelection;
  }

  /**
   * This implements {@link org.eclipse.jface.viewers.ISelectionProvider} to set this editor's overall selection.
   * Calling this result will notify the listeners.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setSelection(ISelection selection)
  {
    editorSelection = selection;

    for (Iterator listeners = selectionChangedListeners.iterator(); listeners.hasNext(); )
    {
      ISelectionChangedListener listener = (ISelectionChangedListener)listeners.next();
      listener.selectionChanged(new SelectionChangedEvent(this, selection));
    }
    setStatusLineManager(selection);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setStatusLineManager(ISelection selection)
  {
    IStatusLineManager statusLineManager = currentViewer != null && currentViewer == contentOutlineViewer ?
      contentOutlineStatusLineManager : getActionBars().getStatusLineManager();

    if (statusLineManager != null)
    {
      if (selection instanceof IStructuredSelection)
      {
        Collection collection = ((IStructuredSelection)selection).toList();
        switch (collection.size())
        {
          case 0:
          {
            statusLineManager.setMessage(getString("_UI_NoObjectSelected")); //$NON-NLS-1$
            break;
          }
          case 1:
          {
            String text = new AdapterFactoryItemDelegator(adapterFactory).getText(collection.iterator().next());
            statusLineManager.setMessage(getString("_UI_SingleObjectSelected", text)); //$NON-NLS-1$
            break;
          }
          default:
          {
            statusLineManager.setMessage(getString("_UI_MultiObjectSelected", Integer.toString(collection.size()))); //$NON-NLS-1$
            break;
          }
        }
      }
      else
      {
        statusLineManager.setMessage(""); //$NON-NLS-1$
      }
    }
  }

  /**
   * This looks up a string in the plugin's plugin.properties file.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  private static String getString(String key)
  {
    return EXTLibraryEditorPlugin.INSTANCE.getString(key);
  }

  /**
   * This looks up a string in plugin.properties, making a substitution.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  private static String getString(String key, Object s1)
  {
    return EXTLibraryEditorPlugin.INSTANCE.getString(key, new Object [] { s1 });
  }

  /**
   * This implements {@link org.eclipse.jface.action.IMenuListener} to help fill the context menus with contributions from the Edit menu.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void menuAboutToShow(IMenuManager menuManager)
  {
    ((IMenuListener)getEditorSite().getActionBarContributor()).menuAboutToShow(menuManager);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public EditingDomainActionBarContributor getActionBarContributor()
  {
    return (EditingDomainActionBarContributor)getEditorSite().getActionBarContributor();
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public IActionBars getActionBars()
  {
    return getActionBarContributor().getActionBars();
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public AdapterFactory getAdapterFactory()
  {
    return adapterFactory;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void dispose()
  {
    updateProblemIndication = false;

    ResourcesPlugin.getWorkspace().removeResourceChangeListener(resourceChangeListener);

    getSite().getPage().removePartListener(partListener);

    adapterFactory.dispose();

    if (getActionBarContributor().getActiveEditor() == this)
    {
      getActionBarContributor().setActiveEditor(null);
    }

    if (propertySheetPage != null)
    {
      propertySheetPage.dispose();
    }

    if (contentOutlinePage != null)
    {
      contentOutlinePage.dispose();
    }

    super.dispose();
  }

  /**
   * Returns whether the outline view should be presented to the user.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected boolean showOutlineView()
  {
    return true;
  }
}