@Nullable
 public Object getData(String dataId) {
   Object data = myPaletteWindow.getData(dataId);
   if (data != null) return data;
   Project project = CommonDataKeys.PROJECT.getData(myPaletteWindow);
   return myGroup.getData(project, dataId);
 }
  @Override
  public void actionPerformed(AnActionEvent e) {
    DataContext dataContext = e.getDataContext();
    final Project project = CommonDataKeys.PROJECT.getData(dataContext);
    if (project == null) return;
    PsiDocumentManager.getInstance(project).commitAllDocuments();
    Editor editor = CommonDataKeys.EDITOR.getData(dataContext);

    UsageTarget[] usageTargets = UsageView.USAGE_TARGETS_KEY.getData(dataContext);
    if (usageTargets != null) {
      FileEditor fileEditor = PlatformDataKeys.FILE_EDITOR.getData(dataContext);
      if (fileEditor != null) {
        usageTargets[0].findUsagesInEditor(fileEditor);
      }
    } else if (editor == null) {
      Messages.showMessageDialog(
          project,
          FindBundle.message("find.no.usages.at.cursor.error"),
          CommonBundle.getErrorTitle(),
          Messages.getErrorIcon());
    } else {
      HintManager.getInstance()
          .showErrorHint(editor, FindBundle.message("find.no.usages.at.cursor.error"));
    }
  }
  private static boolean isEnabled(DataContext dataContext) {
    Project project = CommonDataKeys.PROJECT.getData(dataContext);
    if (project == null
        || EditorGutter.KEY.getData(dataContext) != null
        || Boolean.TRUE.equals(dataContext.getData(CommonDataKeys.EDITOR_VIRTUAL_SPACE))) {
      return false;
    }

    Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
    if (editor == null) {
      UsageTarget[] target = UsageView.USAGE_TARGETS_KEY.getData(dataContext);
      return target != null && target.length > 0;
    } else {
      PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
      if (file == null) {
        return false;
      }

      Language language = PsiUtilBase.getLanguageInEditor(editor, project);
      if (language == null) {
        language = file.getLanguage();
      }
      return !(LanguageFindUsages.INSTANCE.forLanguage(language)
          instanceof EmptyFindUsagesProvider);
    }
  }
Exemple #4
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 @RequiredDispatchThread
 @Override
 public void actionPerformed(@NotNull AnActionEvent e) {
   Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
   if (project == null) return;
   IdeDocumentHistory.getInstance(project).back();
 }
    @Nullable
    @Override
    public Object getData(@NonNls String dataId) {
      Object data;

      DataProvider contentProvider =
          DataManagerImpl.getDataProviderEx(myContentPanel.getTargetComponent());
      if (contentProvider != null) {
        data = contentProvider.getData(dataId);
        if (data != null) return data;
      }

      if (CommonDataKeys.PROJECT.is(dataId)) {
        return myProject;
      } else if (PlatformDataKeys.HELP_ID.is(dataId)) {
        if (myRequest.getUserData(DiffUserDataKeys.HELP_ID) != null) {
          return myRequest.getUserData(DiffUserDataKeys.HELP_ID);
        } else {
          return "procedures.vcWithIDEA.commonVcsOps.integrateDiffs.resolveConflict";
        }
      }

      DataProvider requestProvider = myRequest.getUserData(DiffUserDataKeys.DATA_PROVIDER);
      if (requestProvider != null) {
        data = requestProvider.getData(dataId);
        if (data != null) return data;
      }

      DataProvider contextProvider = myContext.getUserData(DiffUserDataKeys.DATA_PROVIDER);
      if (contextProvider != null) {
        data = contextProvider.getData(dataId);
        if (data != null) return data;
      }
      return null;
    }
  @NotNull
  @Override
  public List<? extends GotoRelatedItem> getItems(@NotNull DataContext context) {
    final Editor editor = CommonDataKeys.EDITOR.getData(context);
    final Project project = CommonDataKeys.PROJECT.getData(context);
    final PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(context);
    if (editor == null || element == null || project == null) {
      return Collections.emptyList();
    }

    PsiMethod method = null;
    for (PsiElement e = element; e != null; e = e.getParent()) {
      if (e instanceof PsiMethod) {
        method = (PsiMethod) e;
        break;
      }
    }
    if (method == null) {
      return Collections.emptyList();
    }

    final List<String> testDataFiles = NavigateToTestDataAction.findTestDataFiles(context);
    if (testDataFiles == null || testDataFiles.isEmpty()) {
      return Collections.emptyList();
    }
    return Collections.singletonList(new TestDataRelatedItem(method, editor, testDataFiles));
  }
Exemple #7
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  @Override
  public void execute(
      final Editor editor,
      final DataContext dataContext,
      @Nullable final Producer<Transferable> producer) {
    if (!CodeInsightUtilBase.prepareEditorForWrite(editor)) return;

    final Document document = editor.getDocument();
    if (!FileDocumentManager.getInstance()
        .requestWriting(document, CommonDataKeys.PROJECT.getData(dataContext))) {
      return;
    }

    DataContext context = dataContext;
    if (producer != null) {
      context =
          new DataContext() {
            @Override
            public Object getData(@NonNls String dataId) {
              return PasteAction.TRANSFERABLE_PROVIDER.is(dataId)
                  ? producer
                  : dataContext.getData(dataId);
            }
          };
    }

    final Project project = editor.getProject();
    if (project == null
        || editor.isColumnMode()
        || editor.getSelectionModel().hasBlockSelection()
        || editor.getCaretModel().getCaretCount() > 1) {
      if (myOriginalHandler != null) {
        myOriginalHandler.execute(editor, context);
      }
      return;
    }

    final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(document);
    if (file == null) {
      if (myOriginalHandler != null) {
        myOriginalHandler.execute(editor, context);
      }
      return;
    }

    document.startGuardedBlockChecking();
    try {
      for (PasteProvider provider : Extensions.getExtensions(EP_NAME)) {
        if (provider.isPasteEnabled(context)) {
          provider.performPaste(context);
          return;
        }
      }
      doPaste(editor, project, file, document, producer);
    } catch (ReadOnlyFragmentModificationException e) {
      EditorActionManager.getInstance().getReadonlyFragmentModificationHandler(document).handle(e);
    } finally {
      document.stopGuardedBlockChecking();
    }
  }
  @Override
  public void actionPerformed(AnActionEvent event) {
    Presentation presentation = event.getPresentation();
    DataContext dataContext = event.getDataContext();
    Project project = CommonDataKeys.PROJECT.getData(dataContext);
    Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
    if (project == null || editor == null) {
      presentation.setEnabled(false);
      return;
    }

    PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
    if (file == null || file.getVirtualFile() == null) {
      presentation.setEnabled(false);
      return;
    }

    boolean hasSelection = editor.getSelectionModel().hasSelection();
    LayoutCodeDialog dialog = new LayoutCodeDialog(project, file, hasSelection, HELP_ID);
    dialog.show();

    if (dialog.isOK()) {
      new FileInEditorProcessor(file, editor, dialog.getRunOptions()).processCode();
    }
  }
 @Override
 public void update(AnActionEvent e) {
   final Presentation presentation = e.getPresentation();
   presentation.setVisible(false);
   final DataContext dataContext = e.getDataContext();
   final Project project = CommonDataKeys.PROJECT.getData(dataContext);
   if (project != null) {
     final RunConfiguration configuration = RunConfiguration.DATA_KEY.getData(dataContext);
     if (isPatternBasedConfiguration(configuration)) {
       final AbstractTestProxy testProxy = AbstractTestProxy.DATA_KEY.getData(dataContext);
       if (testProxy != null) {
         final Location location =
             testProxy.getLocation(
                 project, ((T) configuration).getConfigurationModule().getSearchScope());
         if (location != null) {
           final PsiElement psiElement = location.getPsiElement();
           if (psiElement instanceof PsiClass
               && getPattern((T) configuration)
                   .contains(((PsiClass) psiElement).getQualifiedName())) {
             presentation.setVisible(true);
           }
         }
       }
     }
   }
 }
  @Nullable
  public Object getData(String dataId) {

    if (CommonDataKeys.PROJECT.is(dataId)) {
      return editor != null ? editor.getProject() : null;
    } else if (CommonDataKeys.VIRTUAL_FILE.is(dataId)) {
      return editor != null ? editor.getFile() : null;
    } else if (CommonDataKeys.VIRTUAL_FILE_ARRAY.is(dataId)) {
      return editor != null ? new VirtualFile[] {editor.getFile()} : new VirtualFile[] {};
    } else if (CommonDataKeys.PSI_FILE.is(dataId)) {
      return getData(CommonDataKeys.PSI_ELEMENT.getName());
    } else if (CommonDataKeys.PSI_ELEMENT.is(dataId)) {
      VirtualFile file = editor != null ? editor.getFile() : null;
      return file != null && file.isValid()
          ? PsiManager.getInstance(editor.getProject()).findFile(file)
          : null;
    } else if (LangDataKeys.PSI_ELEMENT_ARRAY.is(dataId)) {
      return editor != null
          ? new PsiElement[] {(PsiElement) getData(CommonDataKeys.PSI_ELEMENT.getName())}
          : new PsiElement[] {};
    } else if (PlatformDataKeys.COPY_PROVIDER.is(dataId) && copyPasteSupport != null) {
      return this;
    } else if (PlatformDataKeys.CUT_PROVIDER.is(dataId) && copyPasteSupport != null) {
      return copyPasteSupport.getCutProvider();
    } else if (PlatformDataKeys.DELETE_ELEMENT_PROVIDER.is(dataId)) {
      return deleteProvider;
    } else if (ImageComponentDecorator.DATA_KEY.is(dataId)) {
      return editor != null ? editor : this;
    }

    return null;
  }
  public void actionPerformed(final AnActionEvent e) {
    final Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
    if (project == null) return;

    final PsiFile file = LangDataKeys.PSI_FILE.getData(e.getDataContext());
    FileAssociationsConfigurable.editAssociations(project, file);
  }
  protected GeneralCommandLine createCommandLine() throws ExecutionException {

    return createFromJavaParameters(
        getJavaParameters(),
        CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext()),
        true);
  }
  @Override
  public void actionPerformed(AnActionEvent e) {
    Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
    assert project != null;

    ProjectUtil.closeAndDispose(project);
    WelcomeFrame.showIfNoProjectOpened();
  }
  /** @return selected editor or <code>null</code> */
  @Nullable
  private static VirtualFile getFile(final DataContext context) {
    Project project = CommonDataKeys.PROJECT.getData(context);
    if (project == null) {
      return null;
    }

    return CommonDataKeys.VIRTUAL_FILE.getData(context);
  }
  public void update(final AnActionEvent e) {
    final FileGroupInfo fileGroupInfo = new FileGroupInfo();

    myHelperAction.setFileIterationListener(fileGroupInfo);
    myHelperAction.update(e);

    myGetterStub.setDelegate(fileGroupInfo);

    if ((e.getPresentation().isEnabled())) {
      removeAll();
      if (myHelperAction.allAreIgnored()) {
        final DataContext dataContext = e.getDataContext();
        final Project project = CommonDataKeys.PROJECT.getData(dataContext);
        SvnVcs vcs = SvnVcs.getInstance(project);

        final Ref<Boolean> filesOk = new Ref<Boolean>(Boolean.FALSE);
        final Ref<Boolean> extensionOk = new Ref<Boolean>(Boolean.FALSE);

        // virtual files parameter is not used -> can pass null
        SvnPropertyService.doCheckIgnoreProperty(
            vcs,
            project,
            null,
            fileGroupInfo,
            fileGroupInfo.getExtensionMask(),
            filesOk,
            extensionOk);

        if (Boolean.TRUE.equals(filesOk.get())) {
          myRemoveExactAction.setActionText(
              fileGroupInfo.oneFileSelected()
                  ? fileGroupInfo.getFileName()
                  : SvnBundle.message("action.Subversion.UndoIgnore.text"));
          add(myRemoveExactAction);
        }

        if (Boolean.TRUE.equals(extensionOk.get())) {
          myRemoveExtensionAction.setActionText(fileGroupInfo.getExtensionMask());
          add(myRemoveExtensionAction);
        }

        e.getPresentation().setText(SvnBundle.message("group.RevertIgnoreChoicesGroup.text"));
      } else if (myHelperAction.allCanBeIgnored()) {
        final String ignoreExactlyName =
            (fileGroupInfo.oneFileSelected())
                ? fileGroupInfo.getFileName()
                : SvnBundle.message("action.Subversion.Ignore.ExactMatch.text");
        myAddExactAction.setActionText(ignoreExactlyName);
        add(myAddExactAction);
        if (fileGroupInfo.sameExtension()) {
          myAddExtensionAction.setActionText(fileGroupInfo.getExtensionMask());
          add(myAddExtensionAction);
        }
        e.getPresentation().setText(SvnBundle.message("group.IgnoreChoicesGroup.text"));
      }
    }
  }
 @Override
 public void run() {
   if (myState == KeyState.STATE_WAIT_FOR_SECOND_KEYSTROKE) {
     resetState();
     final DataContext dataContext = myContext.getDataContext();
     StatusBar.Info.set(
         null, dataContext == null ? null : CommonDataKeys.PROJECT.getData(dataContext));
   }
 }
 @Override
 public void actionPerformed(AnActionEvent e) {
   final Project project = CommonDataKeys.PROJECT.getData(e.getDataContext());
   if (project != null) {
     StatisticsService service = StatisticsUploadAssistant.getStatisticsService();
     StatisticsResult result = service.send();
     Messages.showMessageDialog(result.getDescription(), "Result", PlatformIcons.CUSTOM_FILE_ICON);
   }
 }
 private static EditorWindow getEditorWindow(DataContext dataContext) {
   EditorWindow editorWindow = EditorWindow.DATA_KEY.getData(dataContext);
   if (editorWindow == null) {
     Project project = CommonDataKeys.PROJECT.getData(dataContext);
     if (project != null) {
       editorWindow = FileEditorManagerEx.getInstanceEx(project).getCurrentWindow();
     }
   }
   return editorWindow;
 }
  public boolean processAction(final InputEvent e, @NotNull ActionProcessor processor) {
    ActionManagerEx actionManager = ActionManagerEx.getInstanceEx();
    final Project project = CommonDataKeys.PROJECT.getData(myContext.getDataContext());
    final boolean dumb = project != null && DumbService.getInstance(project).isDumb();
    List<AnActionEvent> nonDumbAwareAction = new ArrayList<AnActionEvent>();
    List<AnAction> actions = myContext.getActions();
    for (final AnAction action : actions) {
      Presentation presentation = myPresentationFactory.getPresentation(action);

      // Mouse modifiers are 0 because they have no any sense when action is invoked via keyboard
      final AnActionEvent actionEvent =
          processor.createEvent(
              e,
              myContext.getDataContext(),
              ActionPlaces.MAIN_MENU,
              presentation,
              ActionManager.getInstance());

      ActionUtil.performDumbAwareUpdate(action, actionEvent, true);

      if (dumb && !action.isDumbAware()) {
        if (!Boolean.FALSE.equals(
            presentation.getClientProperty(ActionUtil.WOULD_BE_ENABLED_IF_NOT_DUMB_MODE))) {
          nonDumbAwareAction.add(actionEvent);
        }
        continue;
      }

      if (!presentation.isEnabled()) {
        continue;
      }

      processor.onUpdatePassed(e, action, actionEvent);

      ((DataManagerImpl.MyDataContext) myContext.getDataContext())
          .setEventCount(IdeEventQueue.getInstance().getEventCount(), this);
      actionManager.fireBeforeActionPerformed(action, actionEvent.getDataContext(), actionEvent);
      Component component =
          PlatformDataKeys.CONTEXT_COMPONENT.getData(actionEvent.getDataContext());
      if (component != null && !component.isShowing()) {
        return true;
      }

      processor.performAction(e, action, actionEvent);
      actionManager.fireAfterActionPerformed(action, actionEvent.getDataContext(), actionEvent);
      return true;
    }

    if (!nonDumbAwareAction.isEmpty()) {
      showDumbModeWarningLaterIfNobodyConsumesEvent(
          e, nonDumbAwareAction.toArray(new AnActionEvent[nonDumbAwareAction.size()]));
    }

    return false;
  }
 public static DebuggerContextImpl getDebuggerContext(DataContext dataContext) {
   DebuggerTreePanel panel = getPanel(dataContext);
   if (panel != null) {
     return panel.getContext();
   } else {
     Project project = CommonDataKeys.PROJECT.getData(dataContext);
     return project != null
         ? (DebuggerManagerEx.getInstanceEx(project)).getContext()
         : DebuggerContextImpl.EMPTY_CONTEXT;
   }
 }
Exemple #21
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  protected DialogWrapperPeerImpl(
      @NotNull DialogWrapper wrapper,
      @Nullable Project project,
      boolean canBeParent,
      @NotNull DialogWrapper.IdeModalityType ideModalityType) {
    myWrapper = wrapper;
    myTypeAheadCallback = myWrapper.isTypeAheadEnabled() ? new ActionCallback() : null;
    myWindowManager = null;
    Application application = ApplicationManager.getApplication();
    if (application != null && application.hasComponent(WindowManager.class)) {
      myWindowManager = (WindowManagerEx) WindowManager.getInstance();
    }

    Window window = null;
    if (myWindowManager != null) {

      if (project == null) {
        //noinspection deprecation
        project = CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext());
      }

      myProject = project;

      window = myWindowManager.suggestParentWindow(project);
      if (window == null) {
        Window focusedWindow = myWindowManager.getMostRecentFocusedWindow();
        if (focusedWindow instanceof IdeFrameImpl) {
          window = focusedWindow;
        }
      }
      if (window == null) {
        IdeFrame[] frames = myWindowManager.getAllProjectFrames();
        for (IdeFrame frame : frames) {
          if (frame instanceof IdeFrameImpl && ((IdeFrameImpl) frame).isActive()) {
            window = (IdeFrameImpl) frame;
            break;
          }
        }
      }
    }

    Window owner;
    if (window != null) {
      owner = window;
    } else {
      if (!isHeadless()) {
        owner = JOptionPane.getRootFrame();
      } else {
        owner = null;
      }
    }

    createDialog(owner, canBeParent, ideModalityType);
  }
Exemple #22
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 @RequiredDispatchThread
 @Override
 public void update(@NotNull AnActionEvent event) {
   Presentation presentation = event.getPresentation();
   Project project = CommonDataKeys.PROJECT.getData(event.getDataContext());
   if (project == null || project.isDisposed()) {
     presentation.setEnabled(false);
     return;
   }
   presentation.setEnabled(IdeDocumentHistory.getInstance(project).isBackAvailable());
 }
 public void update(AnActionEvent event) {
   Presentation presentation = event.getPresentation();
   Project project = CommonDataKeys.PROJECT.getData(event.getDataContext());
   if (project == null) {
     presentation.setEnabled(false);
     return;
   }
   DebuggerSession debuggerSession =
       (DebuggerManagerEx.getInstanceEx(project)).getContext().getDebuggerSession();
   presentation.setEnabled(debuggerSession != null && debuggerSession.isAttached());
 }
  @Override
  public PsiElement getTarget(@NotNull DataContext dataContext) {
    Project project = CommonDataKeys.PROJECT.getData(dataContext);
    if (project == null) return null;

    PsiElement element = getCurrentElement(dataContext, project);
    if (element == null) return null;

    element = HierarchyUtils.getCallHierarchyElement(element);
    if (element instanceof KtFile) return null;

    return element;
  }
  public PsiElement getTarget(@NotNull final DataContext dataContext) {
    final Project project = CommonDataKeys.PROJECT.getData(dataContext);
    if (project == null) return null;

    final Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
    if (LOG.isDebugEnabled()) {
      LOG.debug("editor " + editor);
    }
    if (editor != null) {
      final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
      if (file == null) return null;

      final PsiElement targetElement =
          TargetElementUtilBase.findTargetElement(
              editor,
              TargetElementUtilBase.ELEMENT_NAME_ACCEPTED
                  | TargetElementUtilBase.REFERENCED_ELEMENT_ACCEPTED
                  | TargetElementUtilBase.LOOKUP_ITEM_ACCEPTED);
      if (LOG.isDebugEnabled()) {
        LOG.debug("target element " + targetElement);
      }
      if (targetElement instanceof PsiClass) {
        return targetElement;
      }

      final int offset = editor.getCaretModel().getOffset();
      PsiElement element = file.findElementAt(offset);
      while (element != null) {
        if (LOG.isDebugEnabled()) {
          LOG.debug("context element " + element);
        }
        if (element instanceof PsiFile) {
          if (!(element instanceof PsiClassOwner)) return null;
          final PsiClass[] classes = ((PsiClassOwner) element).getClasses();
          return classes.length == 1 ? classes[0] : null;
        }
        if (element instanceof PsiClass
            && !(element instanceof PsiAnonymousClass)
            && !(element instanceof PsiSyntheticClass)) {
          return element;
        }
        element = element.getParent();
      }

      return null;
    } else {
      final PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
      return element instanceof PsiClass ? (PsiClass) element : null;
    }
  }
 @Override
 public void actionPerformed(AnActionEvent e) {
   final DataContext dataContext = e.getDataContext();
   final Project project = CommonDataKeys.PROJECT.getData(dataContext);
   LOG.assertTrue(project != null);
   final T configuration = (T) RunConfiguration.DATA_KEY.getData(dataContext);
   LOG.assertTrue(configuration != null);
   final GlobalSearchScope searchScope = configuration.getConfigurationModule().getSearchScope();
   final AbstractTestProxy testProxy = AbstractTestProxy.DATA_KEY.getData(dataContext);
   LOG.assertTrue(testProxy != null);
   final String qualifiedName =
       ((PsiClass) testProxy.getLocation(project, searchScope).getPsiElement()).getQualifiedName();
   getPattern(configuration).remove(qualifiedName);
 }
    @Override
    public void execute(Editor editor, DataContext dataContext) {
      Project project = CommonDataKeys.PROJECT.getData(dataContext);
      if (project == null) {
        return;
      }

      PsiFile psiFile = LangDataKeys.PSI_FILE.getData(dataContext);
      if (psiFile == null) {
        return;
      }

      process(psiFile, editor, project, editor.getCaretModel().getOffset());
    }
  private boolean inSecondStrokeInProgressState() {
    KeyEvent e = myContext.getInputEvent();

    // when any key is released, we stop waiting for the second stroke
    if (KeyEvent.KEY_RELEASED == e.getID()) {
      myFirstKeyStroke = null;
      setState(KeyState.STATE_INIT);
      Project project = CommonDataKeys.PROJECT.getData(myContext.getDataContext());
      StatusBar.Info.set(null, project);
      return false;
    }

    KeyStroke originalKeyStroke = KeyStroke.getKeyStrokeForEvent(e);
    KeyStroke keyStroke = getKeyStrokeWithoutMouseModifiers(originalKeyStroke);

    updateCurrentContext(
        myContext.getFoundComponent(),
        new KeyboardShortcut(myFirstKeyStroke, keyStroke),
        myContext.isModalContext());

    // consume the wrong second stroke and keep on waiting
    if (myContext.getActions().isEmpty()) {
      return true;
    }

    // finally user had managed to enter the second keystroke, so let it be processed
    Project project = CommonDataKeys.PROJECT.getData(myContext.getDataContext());
    StatusBarEx statusBar = (StatusBarEx) WindowManager.getInstance().getStatusBar(project);
    if (processAction(e, myActionProcessor)) {
      if (statusBar != null) {
        statusBar.setInfo(null);
      }
      return true;
    } else {
      return false;
    }
  }
 @Override
 public Object getData(@NonNls String dataId) {
   if (CommonDataKeys.PROJECT.is(dataId)) {
     return myModel.getProject();
   } else if (DIR_DIFF_MODEL.is(dataId)) {
     return myModel;
   } else if (DIR_DIFF_TABLE.is(dataId)) {
     return myTable;
   } else if (DiffDataKeys.NAVIGATABLE_ARRAY.is(dataId)) {
     return getNavigatableArray();
   } else if (DiffDataKeys.PREV_NEXT_DIFFERENCE_ITERABLE.is(dataId)) {
     return myPrevNextDifferenceIterable;
   }
   return null;
 }
  public void actionPerformed(AnActionEvent e) {
    final DataContext dc = e.getDataContext();
    if ((!isVisible(dc)) || (!isEnabled(dc))) return;

    final Project project = CommonDataKeys.PROJECT.getData(dc);
    final Iterable<Pair<VirtualFilePointer, FileStatus>> iterable =
        e.getRequiredData(VcsDataKeys.UPDATE_VIEW_FILES_ITERABLE);
    final Label before = (Label) e.getRequiredData(VcsDataKeys.LABEL_BEFORE);
    final Label after = (Label) e.getRequiredData(VcsDataKeys.LABEL_AFTER);
    final String selectedUrl = VcsDataKeys.UPDATE_VIEW_SELECTED_PATH.getData(dc);

    MyDiffRequestChain requestChain =
        new MyDiffRequestChain(project, iterable, before, after, selectedUrl);
    DiffManager.getInstance().showDiff(project, requestChain, DiffDialogHints.FRAME);
  }