Java 类com.intellij.openapi.fileTypes.FileTypeListener 实例源码

public PsiVFSListener(Project project) {
  myProject = project;
  myFileTypeManager = FileTypeManager.getInstance();
  myProjectRootManager = ProjectRootManager.getInstance(project);
  myManager = (PsiManagerImpl) PsiManager.getInstance(project);
  myFileManager = (FileManagerImpl) myManager.getFileManager();

  myConnection = project.getMessageBus().connect(project);

  StartupManager.getInstance(project).registerPreStartupActivity(new Runnable() {
    @Override
    public void run() {
      myConnection.subscribe(ProjectTopics.PROJECT_ROOTS, new MyModuleRootListener());
      myConnection.subscribe(FileTypeManager.TOPIC, new FileTypeListener.Adapter() {
        @Override
        public void fileTypesChanged(@NotNull FileTypeEvent e) {
          myFileManager.processFileTypesChanged();
        }
      });
      myConnection.subscribe(AppTopics.FILE_DOCUMENT_SYNC, new MyFileDocumentManagerAdapter());
      myFileManager.markInitialized();
    }
  });
}

@Override
public void runActivity(@Nonnull UIAccess uiAccess, @Nonnull Project project) {
  if (project.isDefault() || ApplicationManager.getApplication().isUnitTestMode() || project.isDisposed()) {
    return;
  }

  MessageBusConnection connection = project.getMessageBus().connect();
  connection.subscribe(FileEditorManagerListener.FILE_EDITOR_MANAGER, new MyFileEditorManagerListener());
  connection.subscribe(FileTypeManager.TOPIC, new FileTypeListener() {
    @Override
    public void fileTypesChanged(@Nonnull FileTypeEvent event) {
      reinitBreadcrumbsInAllEditors(project);
    }
  });

  VirtualFileManager.getInstance().addVirtualFileListener(new MyVirtualFileListener(project), project);
  connection.subscribe(UISettingsListener.TOPIC, uiSettings -> reinitBreadcrumbsInAllEditors(project));
}

public PsiVFSListener(Project project) {
  installGlobalListener();

  myProject = project;
  myFileTypeManager = FileTypeManager.getInstance();
  myProjectRootManager = ProjectRootManager.getInstance(project);
  myManager = (PsiManagerImpl)PsiManager.getInstance(project);
  myFileManager = (FileManagerImpl)myManager.getFileManager();

  StartupManager.getInstance(project).registerPreStartupActivity(() -> {
    MessageBusConnection connection = project.getMessageBus().connect(project);
    connection.subscribe(ProjectTopics.PROJECT_ROOTS, new MyModuleRootListener());
    connection.subscribe(FileTypeManager.TOPIC, new FileTypeListener() {
      @Override
      public void fileTypesChanged(@Nonnull FileTypeEvent e) {
        myFileManager.processFileTypesChanged();
      }
    });
    connection.subscribe(AppTopics.FILE_DOCUMENT_SYNC, new MyFileDocumentManagerAdapter());
  });
}

public PsiVFSListener(StartupManager startupManager,
                      FileTypeManager fileTypeManager,
                      PsiManager psiManager, 
                      ProjectRootManager projectRootManager) {
  myFileTypeManager = fileTypeManager;
  myProjectRootManager = projectRootManager;
  myProjectFileIndex = myProjectRootManager.getFileIndex();
  myManager = (PsiManagerImpl) psiManager;
  myFileManager = (FileManagerImpl) myManager.getFileManager();

  myConnection = psiManager.getProject().getMessageBus().connect(psiManager.getProject());

  startupManager.registerPreStartupActivity(new Runnable() {
    @Override
    public void run() {
      myConnection.subscribe(VirtualFileManager.VFS_CHANGES, new BulkVirtualFileListenerAdapter(PsiVFSListener.this));
      myConnection.subscribe(ProjectTopics.PROJECT_ROOTS, new MyModuleRootListener());
      myConnection.subscribe(FileTypeManager.TOPIC, new FileTypeListener.Adapter() {
        @Override
        public void fileTypesChanged(FileTypeEvent e) {
          myFileManager.processFileTypesChanged();
        }
      });
      myConnection.subscribe(AppTopics.FILE_DOCUMENT_SYNC, new MyFileDocumentManagerAdapter());
      myFileManager.markInitialized();
    }
  });
}