public static boolean isRoot(PsiFileSystemItem directory) {
   if (directory == null) return true;
   VirtualFile vFile = directory.getVirtualFile();
   if (vFile == null) return true;
   ProjectFileIndex fileIndex = ProjectFileIndex.SERVICE.getInstance(directory.getProject());
   return Comparing.equal(fileIndex.getClassRootForFile(vFile), vFile)
       || Comparing.equal(fileIndex.getContentRootForFile(vFile), vFile)
       || Comparing.equal(fileIndex.getSourceRootForFile(vFile), vFile);
 }
 public boolean isContentOrSourceRoot() {
   if (myVDirectory != null) {
     final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(myProject).getFileIndex();
     final VirtualFile contentRoot = fileIndex.getContentRootForFile(myVDirectory);
     final VirtualFile sourceRoot = fileIndex.getSourceRootForFile(myVDirectory);
     if (myVDirectory.equals(contentRoot) || myVDirectory.equals(sourceRoot)) {
       return true;
     }
   }
   return false;
 }
  public void markModuleDirtyIfInSourceRoot(final VirtualFile file) {
    if (myCache.isEmpty()) return;

    final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(myProject).getFileIndex();
    final Module module = fileIndex.getModuleForFile(file);
    if (module != null
        && fileIndex.getSourceRootForFile(file) != null
        && !fileIndex.isInTestSourceContent(file)) {
      markModuleDirty(module);
    }
  }
  public static void removeDuplicatingClasses(
      final Module module,
      @NotNull final String packageName,
      @NotNull String className,
      @Nullable File classFile,
      String sourceRootPath) {
    if (sourceRootPath == null) {
      return;
    }
    VirtualFile sourceRoot = LocalFileSystem.getInstance().findFileByPath(sourceRootPath);
    if (sourceRoot == null) {
      return;
    }
    final Project project = module.getProject();
    final JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
    final String interfaceQualifiedName = packageName + '.' + className;
    PsiClass[] classes =
        facade.findClasses(interfaceQualifiedName, GlobalSearchScope.moduleScope(module));
    final ProjectFileIndex projectFileIndex =
        ProjectRootManager.getInstance(project).getFileIndex();
    for (PsiClass c : classes) {
      PsiFile psiFile = c.getContainingFile();
      if (className.equals(FileUtil.getNameWithoutExtension(psiFile.getName()))) {
        VirtualFile virtualFile = psiFile.getVirtualFile();
        if (virtualFile != null
            && projectFileIndex.getSourceRootForFile(virtualFile) == sourceRoot) {
          final String path = virtualFile.getPath();
          File f = new File(path);

          try {
            f = f.getCanonicalFile();
            classFile = classFile != null ? classFile.getCanonicalFile() : null;
            if (f != null && !f.equals(classFile) && f.exists()) {
              if (f.delete()) {
                virtualFile.refresh(true, false);
              } else {
                ApplicationManager.getApplication()
                    .invokeLater(
                        new Runnable() {
                          public void run() {
                            Messages.showErrorDialog(
                                project, "Can't delete file " + path, CommonBundle.getErrorTitle());
                          }
                        },
                        project.getDisposed());
              }
            }
          } catch (IOException e) {
            LOG.info(e);
          }
        }
      }
    }
  }
 @Nullable
 private VirtualFile getFileRoot(VirtualFile file) {
   if (myIndex.isLibraryClassFile(file)) {
     return myIndex.getClassRootForFile(file);
   }
   if (myIndex.isInContent(file)) {
     return myIndex.getSourceRootForFile(file);
   }
   if (myIndex.isInLibraryClasses(file)) {
     return myIndex.getClassRootForFile(file);
   }
   return null;
 }
 private static void collectSourceRoots(
     PsiElement[] psiElements, ProjectFileIndex fileIndex, Set<VirtualFile> initialRoots) {
   for (PsiElement element : psiElements) {
     final VirtualFile file = PsiUtilCore.getVirtualFile(element);
     if (file != null) {
       final VirtualFile sourceRootForFile = fileIndex.getSourceRootForFile(file);
       if (sourceRootForFile != null) {
         initialRoots.add(sourceRootForFile);
       }
     } else if (element instanceof PsiDirectoryContainer) {
       collectSourceRoots(
           ((PsiDirectoryContainer) element).getDirectories(), fileIndex, initialRoots);
     }
   }
 }
Example #7
0
  public static String getRootDirectoryForPackage(PsiDirectory directory) {
    PsiManager manager = directory.getManager();
    final VirtualFile virtualFile = directory.getVirtualFile();
    final ProjectFileIndex fileIndex =
        ProjectRootManager.getInstance(manager.getProject()).getFileIndex();
    VirtualFile root = fileIndex.getSourceRootForFile(virtualFile);

    if (root == null) {
      root = fileIndex.getClassRootForFile(virtualFile);
    }
    if (root != null) {
      return root.getPresentableUrl();
    }
    return null;
  }
  public DirectoryNode(
      VirtualFile aDirectory,
      Project project,
      boolean compactPackages,
      boolean showFQName,
      VirtualFile baseDir,
      final VirtualFile[] contentRoots) {
    super(project);
    myVDirectory = aDirectory;
    final ProjectRootManager projectRootManager = ProjectRootManager.getInstance(project);
    final ProjectFileIndex index = projectRootManager.getFileIndex();
    String dirName = aDirectory.getName();
    if (showFQName) {
      final VirtualFile contentRoot = index.getContentRootForFile(myVDirectory);
      if (contentRoot != null) {
        if (Comparing.equal(myVDirectory, contentRoot)) {
          myFQName = dirName;
        } else {
          final VirtualFile sourceRoot = index.getSourceRootForFile(myVDirectory);
          if (Comparing.equal(myVDirectory, sourceRoot)) {
            myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
          } else if (sourceRoot != null) {
            myFQName = VfsUtilCore.getRelativePath(myVDirectory, sourceRoot, '/');
          } else {
            myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
          }
        }

        if (contentRoots.length > 1
            && ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
          myFQName = getContentRootName(baseDir, myFQName);
        }
      } else {
        myFQName = FilePatternPackageSet.getLibRelativePath(myVDirectory, index);
      }
      dirName = myFQName;
    } else {
      if (contentRoots.length > 1 && ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
        dirName = getContentRootName(baseDir, dirName);
      }
    }
    myDirName = dirName;
    myCompactPackages = compactPackages;
  }
Example #9
0
  public static String getReferencePath(Project project, VirtualFile file) {
    final LogicalRoot logicalRoot =
        LogicalRootsManager.getLogicalRootsManager(project).findLogicalRoot(file);
    if (logicalRoot != null) {
      return getRelativePath(file, logicalRoot.getVirtualFile());
    }

    ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex();
    VirtualFile sourceRoot = fileIndex.getSourceRootForFile(file);
    if (sourceRoot != null) {
      return getRelativePath(file, sourceRoot);
    }

    VirtualFile root = fileIndex.getContentRootForFile(file);
    if (root != null) {
      return getRelativePath(file, root);
    }

    return file.getPath();
  }
  @Nullable
  static String getDependencyFolder(
      @NotNull final Project project,
      @NotNull final VirtualFile sourceFile,
      @NotNull final VirtualFile genFolder) {
    final ProjectFileIndex index = ProjectRootManager.getInstance(project).getFileIndex();

    final VirtualFile sourceRoot = index.getSourceRootForFile(sourceFile);
    if (sourceRoot == null) {
      return null;
    }

    final VirtualFile parent = sourceFile.getParent();
    if (parent == sourceRoot) {
      return genFolder.getPath();
    }

    final String relativePath =
        VfsUtilCore.getRelativePath(sourceFile.getParent(), sourceRoot, '/');
    assert relativePath != null;
    return genFolder.getPath() + '/' + relativePath;
  }
 @Override
 public String toString() {
   if (myText == null) {
     Module module = ModuleUtilCore.findModuleForPsiElement(myClass);
     if (module != null) {
       myText = module.getName();
     } else {
       VirtualFile virtualFile = myClass.getContainingFile().getVirtualFile();
       final ProjectFileIndex index =
           ProjectRootManager.getInstance(myClass.getProject()).getFileIndex();
       VirtualFile root = index.getSourceRootForFile(virtualFile);
       if (root == null) {
         root = index.getClassRootForFile(virtualFile);
       }
       if (root != null) {
         myText = root.getName();
       } else {
         myText = virtualFile.getPath();
       }
     }
   }
   return myText;
 }
  @NotNull
  private static PsiClass createBeanClass(final WizardData wizardData) throws MyException {
    final PsiManager psiManager = PsiManager.getInstance(wizardData.myProject);

    final ProjectRootManager projectRootManager =
        ProjectRootManager.getInstance(wizardData.myProject);
    final ProjectFileIndex fileIndex = projectRootManager.getFileIndex();
    final VirtualFile sourceRoot = fileIndex.getSourceRootForFile(wizardData.myFormFile);
    if (sourceRoot == null) {
      throw new MyException(UIDesignerBundle.message("error.form.file.is.not.in.source.root"));
    }

    final PsiDirectory rootDirectory = psiManager.findDirectory(sourceRoot);
    LOG.assertTrue(rootDirectory != null);

    final PsiPackage aPackage =
        JavaPsiFacade.getInstance(psiManager.getProject()).findPackage(wizardData.myPackageName);
    if (aPackage == null) {
      throw new MyException(
          UIDesignerBundle.message("error.package.does.not.exist", wizardData.myPackageName));
    }

    PsiDirectory targetDir = null;

    final PsiDirectory[] directories = aPackage.getDirectories();
    for (final PsiDirectory psiDirectory : directories) {
      if (PsiTreeUtil.isAncestor(rootDirectory, psiDirectory, false)) {
        targetDir = psiDirectory;
        break;
      }
    }

    if (targetDir == null) {
      // todo
      throw new MyException(
          UIDesignerBundle.message("error.cannot.find.package", wizardData.myPackageName));
    }

    //noinspection HardCodedStringLiteral
    final String body =
        "public class "
            + wizardData.myShortClassName
            + "{\n"
            + "public "
            + wizardData.myShortClassName
            + "(){}\n"
            + "}";

    try {
      PsiFile sourceFile =
          PsiFileFactory.getInstance(psiManager.getProject())
              .createFileFromText(wizardData.myShortClassName + ".java", body);
      sourceFile = (PsiFile) targetDir.add(sourceFile);

      final PsiClass beanClass = ((PsiJavaFile) sourceFile).getClasses()[0];

      final ArrayList<String> properties = new ArrayList<String>();
      final HashMap<String, String> property2fqClassName = new HashMap<String, String>();

      final FormProperty2BeanProperty[] bindings = wizardData.myBindings;
      for (final FormProperty2BeanProperty binding : bindings) {
        if (binding == null || binding.myBeanProperty == null) {
          continue;
        }

        properties.add(binding.myBeanProperty.myName);

        // todo: handle "casts" ?

        final String propertyClassName = binding.myFormProperty.getComponentPropertyClassName();

        property2fqClassName.put(binding.myBeanProperty.myName, propertyClassName);
      }

      generateBean(beanClass, ArrayUtil.toStringArray(properties), property2fqClassName);

      return beanClass;
    } catch (IncorrectOperationException e) {
      throw new MyException(e.getMessage());
    }
  }
  @NotNull
  public static VirtualFile getTargetDirectoryFor(
      @NotNull Project project,
      @NotNull VirtualFile sourceFile,
      @Nullable String targetFile,
      @Nullable String targetPackage,
      boolean returnRoot) {
    boolean hasPackage = StringUtil.isNotEmpty(targetPackage);
    ProjectRootManager rootManager = ProjectRootManager.getInstance(project);
    ProjectFileIndex fileIndex = ProjectFileIndex.SERVICE.getInstance(project);
    Collection<VirtualFile> files =
        targetFile == null
            ? Collections.<VirtualFile>emptyList()
            : FilenameIndex.getVirtualFilesByName(
                project, targetFile, ProjectScope.getAllScope(project));

    VirtualFile existingFile = null;
    for (VirtualFile file : files) {
      String existingFilePackage = fileIndex.getPackageNameByDirectory(file.getParent());
      if (!hasPackage || existingFilePackage == null || targetPackage.equals(existingFilePackage)) {
        existingFile = file;
        break;
      }
    }

    VirtualFile existingFileRoot =
        existingFile == null
            ? null
            : fileIndex.isInSourceContent(existingFile)
                ? fileIndex.getSourceRootForFile(existingFile)
                : fileIndex.isInContent(existingFile)
                    ? fileIndex.getContentRootForFile(existingFile)
                    : null;

    boolean preferGenRoot =
        sourceFile.getFileType() == BnfFileType.INSTANCE
            || sourceFile.getFileType() == JFlexFileType.INSTANCE;
    boolean preferSourceRoot = hasPackage && !preferGenRoot;
    VirtualFile[] sourceRoots = rootManager.getContentSourceRoots();
    VirtualFile[] contentRoots = rootManager.getContentRoots();
    final VirtualFile virtualRoot =
        existingFileRoot != null
            ? existingFileRoot
            : preferSourceRoot && fileIndex.isInSource(sourceFile)
                ? fileIndex.getSourceRootForFile(sourceFile)
                : fileIndex.isInContent(sourceFile)
                    ? fileIndex.getContentRootForFile(sourceFile)
                    : getFirstElement(
                        preferSourceRoot && sourceRoots.length > 0 ? sourceRoots : contentRoots);
    if (virtualRoot == null) {
      fail(project, sourceFile, "Unable to guess target source root");
      throw new ProcessCanceledException();
    }
    try {
      String genDirName = Options.GEN_DIR.get();
      boolean newGenRoot = !fileIndex.isInSourceContent(virtualRoot);
      final String relativePath =
          (hasPackage && newGenRoot
                  ? genDirName + "/" + targetPackage
                  : hasPackage ? targetPackage : newGenRoot ? genDirName : "")
              .replace('.', '/');
      if (relativePath.isEmpty()) {
        return virtualRoot;
      } else {
        VirtualFile result =
            new WriteAction<VirtualFile>() {
              @Override
              protected void run(@NotNull Result<VirtualFile> result) throws Throwable {
                result.setResult(VfsUtil.createDirectoryIfMissing(virtualRoot, relativePath));
              }
            }.execute().throwException().getResultObject();
        VfsUtil.markDirtyAndRefresh(false, true, true, result);
        return returnRoot && newGenRoot
            ? ObjectUtils.assertNotNull(virtualRoot.findChild(genDirName))
            : returnRoot ? virtualRoot : result;
      }
    } catch (ProcessCanceledException ex) {
      throw ex;
    } catch (Exception ex) {
      fail(project, sourceFile, ex.getMessage());
      throw new ProcessCanceledException();
    }
  }
  public MoveClassesOrPackagesToNewDirectoryDialog(
      @NotNull final PsiDirectory directory,
      PsiElement[] elementsToMove,
      boolean canShowPreserveSourceRoots,
      final MoveCallback moveCallback) {
    super(false);
    setTitle(MoveHandler.REFACTORING_NAME);
    myDirectory = directory;
    myElementsToMove = elementsToMove;
    myMoveCallback = moveCallback;
    myDestDirectoryField.setText(
        FileUtil.toSystemDependentName(directory.getVirtualFile().getPath()));
    final FileChooserDescriptor descriptor =
        new FileChooserDescriptor(false, true, false, false, false, false);
    myDestDirectoryField
        .getButton()
        .addActionListener(
            new ActionListener() {
              public void actionPerformed(ActionEvent e) {
                final VirtualFile[] files =
                    FileChooser.chooseFiles(
                        myDirectory.getProject(), descriptor, directory.getVirtualFile());
                if (files.length == 1) {
                  myDestDirectoryField.setText(FileUtil.toSystemDependentName(files[0].getPath()));
                }
              }
            });
    if (elementsToMove.length == 1) {
      PsiElement firstElement = elementsToMove[0];
      myNameLabel.setText(
          RefactoringBundle.message(
              "move.single.class.or.package.name.label",
              UsageViewUtil.getType(firstElement),
              UsageViewUtil.getLongName(firstElement)));
    } else if (elementsToMove.length > 1) {
      myNameLabel.setText(
          elementsToMove[0] instanceof PsiClass
              ? RefactoringBundle.message("move.specified.classes")
              : RefactoringBundle.message("move.specified.packages"));
    }
    final JavaRefactoringSettings refactoringSettings = JavaRefactoringSettings.getInstance();
    mySearchInCommentsAndStringsCheckBox.setSelected(refactoringSettings.MOVE_SEARCH_IN_COMMENTS);
    mySearchForTextOccurrencesCheckBox.setSelected(refactoringSettings.MOVE_SEARCH_FOR_TEXT);

    myDestDirectoryField
        .getTextField()
        .getDocument()
        .addDocumentListener(
            new DocumentAdapter() {
              public void textChanged(DocumentEvent event) {
                setOKActionEnabled(myDestDirectoryField.getText().length() > 0);
              }
            });

    if (canShowPreserveSourceRoots) {
      final Set<VirtualFile> sourceRoots = new HashSet<VirtualFile>();
      final ProjectFileIndex fileIndex =
          ProjectRootManager.getInstance(directory.getProject()).getFileIndex();
      for (PsiElement element : elementsToMove) {
        if (element instanceof PsiPackage) {
          for (PsiDirectory psiDirectory : ((PsiPackage) element).getDirectories()) {
            sourceRoots.add(fileIndex.getSourceRootForFile(psiDirectory.getVirtualFile()));
          }
        } else if (element instanceof PsiClass) {
          final PsiDirectory psiDirectory = element.getContainingFile().getContainingDirectory();
          LOG.assertTrue(psiDirectory != null);
          if (psiDirectory != null) {
            sourceRoots.add(psiDirectory.getVirtualFile());
          }
        }
      }
      myPreserveSourceRoot.setVisible(sourceRoots.size() > 1);
    }
    init();
  }
  public void setData(
      final Project project,
      final PsiDirectory initialTargetDirectory,
      final Pass<String> errorMessageUpdater,
      final EditorComboBox editorComboBox) {
    myInitialTargetDirectory = initialTargetDirectory;
    mySourceRoots = ProjectRootManager.getInstance(project).getContentSourceRoots();
    new ComboboxSpeedSearch(getComboBox()) {
      @Override
      protected String getElementText(Object element) {
        if (element == NULL_WRAPPER) return LEAVE_IN_SAME_SOURCE_ROOT;
        if (element instanceof DirectoryChooser.ItemWrapper) {
          final VirtualFile virtualFile =
              ((DirectoryChooser.ItemWrapper) element).getDirectory().getVirtualFile();
          final Module module = ModuleUtil.findModuleForFile(virtualFile, project);
          if (module != null) {
            return module.getName();
          }
        }
        return super.getElementText(element);
      }
    };
    final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(project).getFileIndex();
    getComboBox()
        .setRenderer(
            new ListCellRendererWrapper<DirectoryChooser.ItemWrapper>(getComboBox().getRenderer()) {
              @Override
              public void customize(
                  JList list,
                  DirectoryChooser.ItemWrapper itemWrapper,
                  int index,
                  boolean selected,
                  boolean hasFocus) {
                if (itemWrapper != NULL_WRAPPER && itemWrapper != null) {
                  setIcon(itemWrapper.getIcon(fileIndex));

                  setText(itemWrapper.getRelativeToProjectPath());
                } else {
                  setText(LEAVE_IN_SAME_SOURCE_ROOT);
                }
              }
            });
    final VirtualFile initialSourceRoot =
        initialTargetDirectory != null
            ? fileIndex.getSourceRootForFile(initialTargetDirectory.getVirtualFile())
            : null;
    final VirtualFile[] selection = new VirtualFile[] {initialSourceRoot};
    addActionListener(
        new ActionListener() {
          @Override
          public void actionPerformed(ActionEvent e) {
            VirtualFile root =
                MoveClassesOrPackagesUtil.chooseSourceRoot(
                    new PackageWrapper(PsiManager.getInstance(project), getTargetPackage()),
                    mySourceRoots,
                    initialTargetDirectory);
            if (root == null) return;
            final ComboBoxModel model = getComboBox().getModel();
            for (int i = 0; i < model.getSize(); i++) {
              DirectoryChooser.ItemWrapper item =
                  (DirectoryChooser.ItemWrapper) model.getElementAt(i);
              if (item != NULL_WRAPPER
                  && fileIndex.getSourceRootForFile(item.getDirectory().getVirtualFile()) == root) {
                getComboBox().setSelectedItem(item);
                getComboBox().repaint();
                return;
              }
            }
            setComboboxModel(
                getComboBox(),
                root,
                root,
                fileIndex,
                mySourceRoots,
                project,
                true,
                errorMessageUpdater);
          }
        });

    editorComboBox.addDocumentListener(
        new DocumentAdapter() {
          @Override
          public void documentChanged(DocumentEvent e) {
            JComboBox comboBox = getComboBox();
            DirectoryChooser.ItemWrapper selectedItem =
                (DirectoryChooser.ItemWrapper) comboBox.getSelectedItem();
            setComboboxModel(
                comboBox,
                selectedItem != null && selectedItem != NULL_WRAPPER
                    ? fileIndex.getSourceRootForFile(selectedItem.getDirectory().getVirtualFile())
                    : initialSourceRoot,
                selection[0],
                fileIndex,
                mySourceRoots,
                project,
                false,
                errorMessageUpdater);
          }
        });
    setComboboxModel(
        getComboBox(),
        initialSourceRoot,
        selection[0],
        fileIndex,
        mySourceRoots,
        project,
        false,
        errorMessageUpdater);
    getComboBox()
        .addActionListener(
            new ActionListener() {
              @Override
              public void actionPerformed(ActionEvent e) {
                Object selectedItem = getComboBox().getSelectedItem();
                updateErrorMessage(errorMessageUpdater, fileIndex, selectedItem);
                if (selectedItem instanceof DirectoryChooser.ItemWrapper
                    && selectedItem != NULL_WRAPPER) {
                  PsiDirectory directory =
                      ((DirectoryChooser.ItemWrapper) selectedItem).getDirectory();
                  if (directory != null) {
                    selection[0] = fileIndex.getSourceRootForFile(directory.getVirtualFile());
                  }
                }
              }
            });
  }
 private void setComboboxModel(
     final JComboBox comboBox,
     final VirtualFile initialTargetDirectorySourceRoot,
     final VirtualFile oldSelection,
     final ProjectFileIndex fileIndex,
     final VirtualFile[] sourceRoots,
     final Project project,
     final boolean forceIncludeAll,
     final Pass<String> updateErrorMessage) {
   final LinkedHashSet<PsiDirectory> targetDirectories = new LinkedHashSet<PsiDirectory>();
   final HashMap<PsiDirectory, String> pathsToCreate = new HashMap<PsiDirectory, String>();
   MoveClassesOrPackagesUtil.buildDirectoryList(
       new PackageWrapper(PsiManager.getInstance(project), getTargetPackage()),
       sourceRoots,
       targetDirectories,
       pathsToCreate);
   if (!forceIncludeAll && targetDirectories.size() > pathsToCreate.size()) {
     targetDirectories.removeAll(pathsToCreate.keySet());
   }
   final ArrayList<DirectoryChooser.ItemWrapper> items =
       new ArrayList<DirectoryChooser.ItemWrapper>();
   DirectoryChooser.ItemWrapper initial = null;
   DirectoryChooser.ItemWrapper oldOne = null;
   for (PsiDirectory targetDirectory : targetDirectories) {
     DirectoryChooser.ItemWrapper itemWrapper =
         new DirectoryChooser.ItemWrapper(targetDirectory, pathsToCreate.get(targetDirectory));
     items.add(itemWrapper);
     final VirtualFile sourceRootForFile =
         fileIndex.getSourceRootForFile(targetDirectory.getVirtualFile());
     if (sourceRootForFile == initialTargetDirectorySourceRoot) {
       initial = itemWrapper;
     } else if (sourceRootForFile == oldSelection) {
       oldOne = itemWrapper;
     }
   }
   items.add(NULL_WRAPPER);
   final DirectoryChooser.ItemWrapper selection =
       chooseSelection(initialTargetDirectorySourceRoot, fileIndex, items, initial, oldOne);
   final ComboBoxModel model = comboBox.getModel();
   if (model instanceof CollectionComboBoxModel) {
     boolean sameModel = model.getSize() == items.size();
     if (sameModel) {
       for (int i = 0; i < items.size(); i++) {
         final DirectoryChooser.ItemWrapper oldItem =
             (DirectoryChooser.ItemWrapper) model.getElementAt(i);
         final DirectoryChooser.ItemWrapper itemWrapper = items.get(i);
         if (!areItemsEquivalent(oldItem, itemWrapper)) {
           sameModel = false;
           break;
         }
       }
     }
     if (sameModel) {
       if (areItemsEquivalent(
           (DirectoryChooser.ItemWrapper) comboBox.getSelectedItem(), selection)) {
         return;
       }
     }
   }
   updateErrorMessage(updateErrorMessage, fileIndex, selection);
   Collections.sort(
       items,
       new Comparator<DirectoryChooser.ItemWrapper>() {
         @Override
         public int compare(DirectoryChooser.ItemWrapper o1, DirectoryChooser.ItemWrapper o2) {
           if (o1 == NULL_WRAPPER) return -1;
           if (o2 == NULL_WRAPPER) return 1;
           return o1.getRelativeToProjectPath().compareToIgnoreCase(o2.getRelativeToProjectPath());
         }
       });
   comboBox.setModel(new CollectionComboBoxModel(items, selection));
 }