private void initGuardedBlocks(Place shreds) {
   int origOffset = -1;
   int curOffset = 0;
   for (PsiLanguageInjectionHost.Shred shred : shreds) {
     Segment hostRangeMarker = shred.getHostRangeMarker();
     int start = shred.getRange().getStartOffset() + shred.getPrefix().length();
     int end = shred.getRange().getEndOffset() - shred.getSuffix().length();
     if (curOffset < start) {
       RangeMarker guard = myNewDocument.createGuardedBlock(curOffset, start);
       if (curOffset == 0 && shred == shreds.get(0)) guard.setGreedyToLeft(true);
       String padding =
           origOffset < 0
               ? ""
               : myOrigDocument.getText().substring(origOffset, hostRangeMarker.getStartOffset());
       guard.putUserData(REPLACEMENT_KEY, fixQuotes(padding));
     }
     curOffset = end;
     origOffset = hostRangeMarker.getEndOffset();
   }
   if (curOffset < myNewDocument.getTextLength()) {
     RangeMarker guard =
         myNewDocument.createGuardedBlock(curOffset, myNewDocument.getTextLength());
     guard.setGreedyToRight(true);
     guard.putUserData(REPLACEMENT_KEY, "");
   }
 }
  QuickEditHandler(
      Project project,
      @NotNull PsiFile injectedFile,
      final PsiFile origFile,
      Editor editor,
      QuickEditAction action) {
    myProject = project;
    myEditor = editor;
    myAction = action;
    myOrigDocument = editor.getDocument();
    Place shreds = InjectedLanguageUtil.getShreds(injectedFile);
    FileType fileType = injectedFile.getFileType();
    Language language = injectedFile.getLanguage();
    PsiLanguageInjectionHost.Shred firstShred = ContainerUtil.getFirstItem(shreds);

    PsiFileFactory factory = PsiFileFactory.getInstance(project);
    String text = InjectedLanguageManager.getInstance(project).getUnescapedText(injectedFile);
    String newFileName =
        StringUtil.notNullize(language.getDisplayName(), "Injected")
            + " Fragment "
            + "("
            + origFile.getName()
            + ":"
            + firstShred.getHost().getTextRange().getStartOffset()
            + ")"
            + "."
            + fileType.getDefaultExtension();

    // preserve \r\n as it is done in MultiHostRegistrarImpl
    myNewFile = factory.createFileFromText(newFileName, language, text, true, false);
    myNewVirtualFile = ObjectUtils.assertNotNull((LightVirtualFile) myNewFile.getVirtualFile());
    myNewVirtualFile.setOriginalFile(origFile.getVirtualFile());

    assert myNewFile != null : "PSI file is null";
    assert myNewFile.getTextLength() == myNewVirtualFile.getContent().length()
        : "PSI / Virtual file text mismatch";

    myNewVirtualFile.setOriginalFile(origFile.getVirtualFile());
    // suppress possible errors as in injected mode
    myNewFile.putUserData(
        InjectedLanguageUtil.FRANKENSTEIN_INJECTION,
        injectedFile.getUserData(InjectedLanguageUtil.FRANKENSTEIN_INJECTION));
    myNewFile.putUserData(FileContextUtil.INJECTED_IN_ELEMENT, shreds.getHostPointer());
    myNewDocument = PsiDocumentManager.getInstance(project).getDocument(myNewFile);
    assert myNewDocument != null;
    EditorActionManager.getInstance()
        .setReadonlyFragmentModificationHandler(myNewDocument, new MyQuietHandler());
    myOrigCreationStamp =
        myOrigDocument.getModificationStamp(); // store creation stamp for UNDO tracking
    myOrigDocument.addDocumentListener(this, this);
    myNewDocument.addDocumentListener(this, this);
    EditorFactory editorFactory = ObjectUtils.assertNotNull(EditorFactory.getInstance());
    // not FileEditorManager listener because of RegExp checker and alike
    editorFactory.addEditorFactoryListener(
        new EditorFactoryAdapter() {
          int useCount;

          @Override
          public void editorCreated(@NotNull EditorFactoryEvent event) {
            if (event.getEditor().getDocument() != myNewDocument) return;
            useCount++;
          }

          @Override
          public void editorReleased(@NotNull EditorFactoryEvent event) {
            if (event.getEditor().getDocument() != myNewDocument) return;
            if (--useCount > 0) return;
            if (Boolean.TRUE.equals(
                myNewVirtualFile.getUserData(FileEditorManagerImpl.CLOSING_TO_REOPEN))) return;

            Disposer.dispose(QuickEditHandler.this);
          }
        },
        this);

    if ("JAVA".equals(firstShred.getHost().getLanguage().getID())) {
      PsiLanguageInjectionHost.Shred lastShred = ContainerUtil.getLastItem(shreds);
      myAltFullRange =
          myOrigDocument.createRangeMarker(
              firstShred.getHostRangeMarker().getStartOffset(),
              lastShred.getHostRangeMarker().getEndOffset());
      myAltFullRange.setGreedyToLeft(true);
      myAltFullRange.setGreedyToRight(true);

      initGuardedBlocks(shreds);
      myInjectedFile = null;
    } else {
      initMarkers(shreds);
      myAltFullRange = null;
      myInjectedFile = injectedFile;
    }
  }