com.intellij.openapi.vfs.newvfs.events.VFilePropertyChangeEvent Java Examples

@RequiredUIAccess
public static void reparseFiles(@Nonnull final Collection<? extends VirtualFile> files) {
  ApplicationManager.getApplication().runWriteAction(new Runnable() {
    @Override
    public void run() {
      // files must be processed under one write action to prevent firing event for invalid files.
      final Set<VFilePropertyChangeEvent> events = new THashSet<VFilePropertyChangeEvent>();
      for (VirtualFile file : files) {
        saveOrReload(file, events);
      }

      BulkFileListener publisher = ApplicationManager.getApplication().getMessageBus().syncPublisher(VirtualFileManager.VFS_CHANGES);
      List<VFileEvent> eventList = new ArrayList<VFileEvent>(events);
      publisher.before(eventList);
      publisher.after(eventList);
    }
  });
}
 

@RequiredWriteAction
private static void saveOrReload(VirtualFile file, @Nonnull Collection<VFilePropertyChangeEvent> events) {
  if (file == null || file.isDirectory() || !file.isValid()) {
    return;
  }

  FileDocumentManager documentManager = FileDocumentManager.getInstance();
  if (documentManager.isFileModified(file)) {
    Document document = documentManager.getDocument(file);
    if (document != null) {
      documentManager.saveDocument(document);
    }
  }

  events.add(new VFilePropertyChangeEvent(FORCE_RELOAD_REQUESTOR, file, VirtualFile.PROP_NAME, file.getName(), file.getName(), false));
}
 

@Override
public void notifyPropertyChanged(@Nonnull final VirtualFile virtualFile, @Nonnull final String property, final Object oldValue, final Object newValue) {
  final Application application = ApplicationManager.getApplication();
  final Runnable runnable = new Runnable() {
    @Override
    public void run() {
      if (virtualFile.isValid() && !application.isDisposed()) {
        application.runWriteAction(new Runnable() {
          @Override
          public void run() {
            List<VFilePropertyChangeEvent> events = Collections.singletonList(new VFilePropertyChangeEvent(this, virtualFile, property, oldValue, newValue, false));
            BulkFileListener listener = application.getMessageBus().syncPublisher(VirtualFileManager.VFS_CHANGES);
            listener.before(events);
            listener.after(events);
          }
        });
      }
    }
  };
  application.invokeLater(runnable, ModalityState.NON_MODAL);
}
 

@Override
public void after(List<? extends VFileEvent> events) {
  if (!enabled) {
    return;
  }
  for (VFileEvent event : events) {
    VirtualFile modifiedFile = null;
    // Skip delete events.
    if (event instanceof VFileContentChangeEvent || event instanceof VFileCreateEvent) {
      modifiedFile = event.getFile();
    } else if (event instanceof VFileCopyEvent) {
      VFileCopyEvent copyEvent = (VFileCopyEvent) event;
      modifiedFile = copyEvent.getNewParent();
    } else if (event instanceof VFileMoveEvent) {
      VFileMoveEvent moveEvent = (VFileMoveEvent) event;
      modifiedFile = moveEvent.getNewParent();
    } else if (event instanceof VFilePropertyChangeEvent) {
      VFilePropertyChangeEvent propEvent = (VFilePropertyChangeEvent) event;
      // Check for file renames (sometimes we get property change events without the name
      // actually changing though)
      if (propEvent.getPropertyName().equals(VirtualFile.PROP_NAME)
          && !propEvent.getOldValue().equals(propEvent.getNewValue())) {
        modifiedFile = propEvent.getFile();
      }
    }
    if (SymbolTableProvider.isSourceFile(project, modifiedFile)) {
      queueChange(modifiedFile);
    }
  }
}
 

public static void execute(final PsiElement element, final String newName, final UsageInfo[] usages,
                           @Nullable final RefactoringElementListener listener) throws IncorrectOperationException {
    try {
        final VirtualFile virtualFile;
        if (element instanceof PsiFile) {
            logger.info("Renaming file...");
            virtualFile = ((PsiFile) element).getVirtualFile();
        } else if (element instanceof PsiDirectory) {
            logger.info("Renaming directory...");
            virtualFile = ((PsiDirectory) element).getVirtualFile();
        } else {
            // should never reach here since we check if file/directory before making a rename
            logger.warn("RenameFile: failed to find proper object to rename: " + element.getClass());
            throw new IncorrectOperationException("Can't perform rename on objects other than files and directories");
        }

        final String currentPath = virtualFile.getPath();
        final String parentDirectory = virtualFile.getParent().getPath();
        final String newPath = Path.combine(parentDirectory, newName);
        final Project project = element.getProject();

        // a single file may have 0, 1, or 2 pending changes to it
        // 0 - file has not been touched in the local workspace
        // 1 - file has versioned OR unversioned changes
        // 2 - file has versioned AND unversioned changes (rare but can happen)
        final List<PendingChange> pendingChanges = new ArrayList<>(2);
        pendingChanges.addAll(
                CommandUtils.getStatusForFiles(
                        project,
                        TFSVcs.getInstance(project).getServerContext(true),
                        ImmutableList.of(currentPath)));

        // ** Rename logic **
        // If 1 change and it's an add that means it's a new unversioned file so rename thru the file system
        // Anything else can be renamed
        // Deleted files should not be at this point since IDE disables rename option for them
        if (pendingChanges.size() == 1 && pendingChanges.get(0).getChangeTypes().contains(ServerStatusType.ADD)) {
            logger.info("Renaming unversioned file thru file system");
            RenameUtil.doRenameGenericNamedElement(element, newName, usages, listener);
        } else {
            logger.info("Renaming file thru tf commandline");
            CommandUtils.renameFile(TFSVcs.getInstance(project).getServerContext(true), currentPath, newPath);

            // this alerts that a rename has taken place so any additional processing can take place
            final VFileEvent event = new VFilePropertyChangeEvent(element.getManager(), virtualFile, "name", currentPath, newName, false);
            PersistentFS.getInstance().processEvents(Collections.singletonList(event));
        }
    } catch (Throwable t) {
        logger.warn("renameElement experienced a failure while trying to rename a file", t);
        throw new IncorrectOperationException(t);
    }

    if (listener != null) {
        listener.elementRenamed(element);
    }
}
 

private static void checkSubscription() {
  if (ourSubscribed.getAndSet(true)) return;

  Application app = ApplicationManager.getApplication();
  app.getMessageBus().connect(app).subscribe(VirtualFileManager.VFS_CHANGES, new BulkFileListener.Adapter() {
    @Override
    public void after(@Nonnull List<? extends VFileEvent> events) {
      InvalidationState state = null;

      synchronized (ourLock) {
        for (VFileEvent event : events) {
          if (!(event.getFileSystem() instanceof LocalFileSystem)) continue;

          if (event instanceof VFileCreateEvent) continue; // created file should not invalidate + getFile is costly

          if (event instanceof VFilePropertyChangeEvent && !VirtualFile.PROP_NAME.equals(((VFilePropertyChangeEvent)event).getPropertyName())) {
            continue;
          }

          String path = event.getPath();
          if (event instanceof VFilePropertyChangeEvent) {
            path = ((VFilePropertyChangeEvent)event).getOldPath();
          }
          else if (event instanceof VFileMoveEvent) {
            path = ((VFileMoveEvent)event).getOldPath();
          }

          VirtualFile file = event.getFile();
          if (file == null || !file.isDirectory()) {
            state = InvalidationState.invalidate(state, path);
          }
          else {
            Collection<String> affectedPaths = ourDominatorsMap.get(path);
            if (affectedPaths != null) {
              affectedPaths = ContainerUtil.newArrayList(affectedPaths);  // defensive copying; original may be updated on invalidation
              for (String affectedPath : affectedPaths) {
                state = InvalidationState.invalidate(state, affectedPath);
              }
            }
          }
        }
      }

      if (state != null) state.scheduleRefresh();
    }
  });
}
 

@Nullable
@Override
public ChangeApplier prepareChange(@Nonnull List<? extends VFileEvent> events) {
  if (myForbid || !myVcsManager.hasAnyMappings()) return null;
  final FilesAndDirs dirtyFilesAndDirs = new FilesAndDirs();
  // collect files and directories - sources of events
  for (VFileEvent event : events) {
    ProgressManager.checkCanceled();

    final boolean isDirectory;
    if (event instanceof VFileCreateEvent) {
      if (!((VFileCreateEvent)event).getParent().isInLocalFileSystem()) {
        continue;
      }
      isDirectory = ((VFileCreateEvent)event).isDirectory();
    }
    else {
      final VirtualFile file = Objects.requireNonNull(event.getFile(), "All events but VFileCreateEvent have @NotNull getFile()");
      if (!file.isInLocalFileSystem()) {
        continue;
      }
      isDirectory = file.isDirectory();
    }

    if (event instanceof VFileMoveEvent) {
      add(myVcsManager, dirtyFilesAndDirs, VcsUtil.getFilePath(((VFileMoveEvent)event).getOldPath(), isDirectory));
      add(myVcsManager, dirtyFilesAndDirs, VcsUtil.getFilePath(((VFileMoveEvent)event).getNewPath(), isDirectory));
    }
    else if (event instanceof VFilePropertyChangeEvent && ((VFilePropertyChangeEvent)event).isRename()) {
      // if a file was renamed, then the file is dirty and its parent directory is dirty too;
      // if a directory was renamed, all its children are recursively dirty, the parent dir is also dirty but not recursively.
      FilePath oldPath = VcsUtil.getFilePath(((VFilePropertyChangeEvent)event).getOldPath(), isDirectory);
      FilePath newPath = VcsUtil.getFilePath(((VFilePropertyChangeEvent)event).getNewPath(), isDirectory);
      // the file is dirty recursively
      add(myVcsManager, dirtyFilesAndDirs, oldPath);
      add(myVcsManager, dirtyFilesAndDirs, newPath);
      FilePath parentPath = oldPath.getParentPath();
      if (parentPath != null) {
        addAsFiles(myVcsManager, dirtyFilesAndDirs, parentPath); // directory is dirty alone
      }
    }
    else {
      add(myVcsManager, dirtyFilesAndDirs, VcsUtil.getFilePath(event.getPath(), isDirectory));
    }
  }

  return new ChangeApplier() {
    @Override
    public void afterVfsChange() {
      markDirtyOnPooled(dirtyFilesAndDirs);
    }
  };
}
 

private static boolean shouldDropCache(VFileEvent e) {
  if (!(e instanceof VFilePropertyChangeEvent)) return false;

  String propertyName = ((VFilePropertyChangeEvent)e).getPropertyName();
  return propertyName.equals(VirtualFile.PROP_NAME) || propertyName.equals(VirtualFile.PROP_ENCODING);
}