Java Code Examples for com.intellij.openapi.editor.Document#getText()

@Override
public boolean isAvailable(@NotNull Project project, Editor editor, @NotNull PsiElement element) {

    if (!WeexFileUtil.isOnWeexFile(element)) {
        return false;
    }

    int offset = editor.getCaretModel().getOffset();
    Document document = editor.getDocument();
    if (!element.isWritable() || element.getContext() == null || !element.getContext().isWritable()) {
        return false;
    }

    if (element instanceof XmlToken && ((XmlToken) element).getTokenType().toString().equals("XML_END_TAG_START")) {
        String next = document.getText(new TextRange(offset, offset + 1));
        if (next != null && next.equals("<")) {
            return true;
        }
    }

    return available(element);
}
 

@javax.annotation.Nullable
public String getContent() {
  VirtualFile vFile = getVirtualFile();
  if (vFile == null) {
    myFile.refresh();
    vFile = getVirtualFile();
    if (vFile == null) return null;
  }
  final VirtualFile finalVFile = vFile;
  final Document doc = ApplicationManager.getApplication().runReadAction(new Computable<Document>() {
    public Document compute() {
      return FileDocumentManager.getInstance().getDocument(finalVFile);
  }});
  if (doc == null) return null;
  return doc.getText();
}
 

private static Map<String, List<PsiElement>> collectRedSymbols(
    PsiFile psiFile, Document document, Project project, ProgressIndicator daemonIndicator) {
  Map<String, List<PsiElement>> redSymbolToElements = new HashMap<>();
  List<HighlightInfo> infos =
      ((DaemonCodeAnalyzerImpl) DaemonCodeAnalyzer.getInstance(project))
          .runMainPasses(psiFile, document, daemonIndicator);
  for (HighlightInfo info : infos) {
    if (!info.getSeverity().equals(HighlightSeverity.ERROR)) continue;

    final String redSymbol = document.getText(new TextRange(info.startOffset, info.endOffset));
    if (!StringUtil.isJavaIdentifier(redSymbol) || !StringUtil.isCapitalized(redSymbol)) continue;

    final PsiJavaCodeReferenceElement ref =
        PsiTreeUtil.findElementOfClassAtOffset(
            psiFile, info.startOffset, PsiJavaCodeReferenceElement.class, false);
    if (ref == null) continue;

    redSymbolToElements.putIfAbsent(redSymbol, new ArrayList<>());
    redSymbolToElements.get(redSymbol).add(ref);
  }
  return redSymbolToElements;
}
 

public static GrammarRootAST parseGrammar(Project project, Tool antlr, VirtualFile grammarFile) {
	try {
		Document document = FileDocumentManager.getInstance().getDocument(grammarFile);
		String grammarText = document != null ? document.getText() : new String(grammarFile.contentsToByteArray());

		ANTLRStringStream in = new ANTLRStringStream(grammarText);
		in.name = grammarFile.getPath();
		return antlr.parse(grammarFile.getPath(), in);
	}
	catch (IOException ioe) {
		antlr.errMgr.toolError(ErrorType.CANNOT_OPEN_FILE, ioe, grammarFile);
	}
	return null;
}
 

private void extractExpectedLineMarkerSet(Document document) {
  String text = document.getText();

  @NonNls String pat = ".*?((<" + LINE_MARKER + ")(?: descr=\"((?:[^\"\\\\]|\\\\\")*)\")?>)(.*)";
  final Pattern p = Pattern.compile(pat, Pattern.DOTALL);
  final Pattern pat2 = Pattern.compile("(.*?)(</" + LINE_MARKER + ">)(.*)", Pattern.DOTALL);

  while (true) {
    Matcher m = p.matcher(text);
    if (!m.matches()) break;
    int startOffset = m.start(1);
    final String descr = m.group(3) != null ? m.group(3) : ANY_TEXT;
    String rest = m.group(4);

    document.replaceString(startOffset, m.end(1), "");

    final Matcher matcher2 = pat2.matcher(rest);
    LOG.assertTrue(matcher2.matches(), "Cannot find closing </" + LINE_MARKER + ">");
    String content = matcher2.group(1);
    int endOffset = startOffset + matcher2.start(3);
    String endTag = matcher2.group(2);

    document.replaceString(startOffset, endOffset, content);
    endOffset -= endTag.length();

    LineMarkerInfo markerInfo = new LineMarkerInfo<PsiElement>(myFile, new TextRange(startOffset, endOffset), null, Pass.LINE_MARKERS,
                                                               new ConstantFunction<PsiElement, String>(descr), null,
                                                               GutterIconRenderer.Alignment.RIGHT);

    lineMarkerInfos.put(document.createRangeMarker(startOffset, endOffset), markerInfo);
    text = document.getText();
  }
}
 

public String getCurrentWords(Editor editor) {
    Document document = editor.getDocument();
    CaretModel caretModel = editor.getCaretModel();
    int caretOffset = caretModel.getOffset();
    int lineNum = document.getLineNumber(caretOffset);
    int lineStartOffset = document.getLineStartOffset(lineNum);
    int lineEndOffset = document.getLineEndOffset(lineNum);
    String lineContent = document.getText(new TextRange(lineStartOffset, lineEndOffset));
    char[] chars = lineContent.toCharArray();
    int start = 0, end = 0, cursor = caretOffset - lineStartOffset;

    if (!Character.isLetter(chars[cursor])) {
        Logger.warn("Caret not in a word");
        return null;
    }

    for (int ptr = cursor; ptr >= 0; ptr--) {
        if (!Character.isLetter(chars[ptr])) {
            start = ptr + 1;
            break;
        }
    }

    int lastLetter = 0;
    for (int ptr = cursor; ptr < lineEndOffset - lineStartOffset; ptr++) {
        lastLetter = ptr;
        if (!Character.isLetter(chars[ptr])) {
            end = ptr;
            break;
        }
    }
    if (end == 0) {
        end = lastLetter + 1;
    }

    String ret = new String(chars, start, end-start);
    Logger.info("Selected words: " + ret);
    return ret;
}
 

/**
 * Returns the selected text if there is any selection. If not return all based on parameter
 *
 * @param defaultToAll If no selection, then this decides whether to return all text
 */
String getSelectedText(boolean defaultToAll) {
    ConsoleView console = this.getConsole();
    Editor myEditor = console != null ? (Editor) CommonDataKeys.EDITOR.getData((DataProvider) console) : null;
    if (myEditor != null) {
        Document document = myEditor.getDocument();
        final SelectionModel selectionModel = myEditor.getSelectionModel();
        if (selectionModel.hasSelection()) {
            return selectionModel.getSelectedText();
        } else if (defaultToAll) {
            return document.getText();
        }
    }
    return null;
}
 

public void refmtCount(@NotNull VirtualFile sourceFile, boolean isInterface, @NotNull String format, @NotNull Document document, final int retries) {
    if (!sourceFile.exists()) {
        return;
    }

    if (ReasonSettings.getInstance(m_project).isEnabled()) {
        long before = document.getModificationStamp();

        RefmtProcess refmt = RefmtProcess.getInstance(m_project);
        String oldText = document.getText();
        if (!oldText.isEmpty()) {
            String newText = refmt.run(sourceFile, isInterface, format, oldText);
            if (!newText.isEmpty() && !oldText.equals(newText)) { // additional protection
                ApplicationManager.getApplication().invokeLater(() -> {
                    long after = document.getModificationStamp();
                    if (after > before) {
                        // Document has changed, redo refmt one time
                        if (retries < 2) {
                            refmtCount(sourceFile, isInterface, format, document, retries + 1);
                        }
                    } else {
                        CommandProcessor.getInstance().executeCommand(m_project, () -> {
                            WriteAction.run(() -> {
                                document.setText(newText);
                                FileDocumentManager.getInstance().saveDocument(document);
                            });
                            sourceFile.putUserData(UndoConstants.FORCE_RECORD_UNDO, null);
                        }, "reason.refmt", "CodeFormatGroup", document);
                    }
                });
            }
        }
    }
}
 

@Override
@Nullable
public String convert(@NotNull VirtualFile virtualFile, boolean isInterface, @NotNull String fromFormat, @NotNull String toFormat,
                      @NotNull Document document) {
    RefmtProcess refmt = RefmtProcess.getInstance(m_project);
    String oldText = document.getText();
    String newText = refmt.convert(virtualFile, isInterface, fromFormat, toFormat, oldText);
    // additional protection
    return oldText.isEmpty() || newText.isEmpty() ? null : newText;
}
 

private void reformat(PsiFile file, Collection<TextRange> ranges, Document document) {
	if (document != null) {
		Formatter formatter = new Formatter();
		String source = document.getText();
		IRegion[] regions = EclipseRegionAdapter.asArray(ranges);
		TextEdit edit = formatter.format(source, regions, NORMALIZED_LINE_SEPARATOR);
		applyEdit(document, edit);
	}
}
 

@Override
protected void performAction(AnActionEvent e) {
	Project project = e.getProject();
	if (project == null)
		throw new NotificationException("No project found", "Are you in any project?");

	Configurator configurator = project.getComponent(Configurator.class);
	Configurator.State configuration = configurator.getState();

	RunManagerEx runManager = RunManagerEx.getInstanceEx(project);
	RunnerAndConfigurationSettings selectedConfiguration = runManager.getSelectedConfiguration();
	if (selectedConfiguration == null) {
		return;
	}

	RunConfiguration runConfiguration = selectedConfiguration.getConfiguration();
	if (!(runConfiguration instanceof TaskConfiguration)) {
		Notificator.showNotification(
				"Not a JHelper configuration",
				"You have to choose JHelper Task to copy",
				NotificationType.WARNING
		);
		return;
	}

	CodeGenerationUtils.generateSubmissionFileForTask(project, (TaskConfiguration)runConfiguration);

	VirtualFile file = project.getBaseDir().findFileByRelativePath(configuration.getOutputFile());
	if (file == null)
		throw new NotificationException("Couldn't find output file");
	Document document = FileDocumentManager.getInstance().getDocument(file);
	if (document == null)
		throw new NotificationException("Couldn't open output file");
	StringSelection selection = new StringSelection(document.getText());
	Toolkit.getDefaultToolkit().getSystemClipboard().setContents(selection, selection);
}
 

public static Position toPosition(int offset, Document document) {
    int line = document.getLineNumber(offset);
    int lineStart = document.getLineStartOffset(line);
    String lineTextBeforeOffset = document.getText(new TextRange(lineStart, offset));
    int column = lineTextBeforeOffset.length();
    return new Position(line, column);
}
 

static boolean endsWith(Document doc, int pos, String s) {
    int begin = pos - s.length();
    if (begin < 0 || pos > doc.getTextLength()) {
        return false;
    } else {
        String tail = doc.getText(new TextRange(begin, pos));
        return tail.equals(s);
    }
}
 

@Override
public void actionPerformed(AnActionEvent e) {

    /* Get all the required data from data keys */
    //final Editor editor = e.getRequiredData(CommonDataKeys.EDITOR);
    project = e.getRequiredData(CommonDataKeys.PROJECT);
    config = SingleFileExecutionConfig.getInstance(project);
    String cmakelistFilePath = project.getBasePath() + "/CMakeLists.txt";

    //Access document, caret, and selection
    //final Document document = editor.getDocument();
    //final SelectionModel selectionModel = editor.getSelectionModel();
    //final int start = selectionModel.getSelectionStart();
    //final int end = selectionModel.getSelectionEnd();

    File file = new File(cmakelistFilePath);
    VirtualFile cmakelistFile = LocalFileSystem.getInstance().findFileByIoFile(file);
    if (cmakelistFile == null) {
        /* CMakeLists.txt not exist */
        Notifications.Bus.notify (
                new Notification("singlefileexecutionaction", "Single File Execution Plugin", "Fail to access " + cmakelistFilePath, NotificationType.ERROR)
        );
        return;
    }
    Document cmakelistDocument = FileDocumentManager.getInstance().getDocument(cmakelistFile);

    // get source file (* currently selected file in editor)
    sourceFile = e.getData(PlatformDataKeys.VIRTUAL_FILE);
    //vFile.getCanonicalPath();   // source file path (absolute path)
    //vFile.getPath();            // source file path (absolute path)
    String fileName = sourceFile != null ? sourceFile.getName() : null;  // source file name (but not include path)

    String exeName = buildExeName(config.getExecutableName());
    String sourceName = fileName;
    String relativeSourcePath = new File(project.getBasePath()).toURI().relativize(new File(sourceFile.getPath()).toURI()).getPath();

    /* parse cmakelistDocument to check existence of exe_name */
    /* See http://mmasashi.hatenablog.com/entry/20091129/1259511129 for lazy, greedy search */
    String regex = "^add_executable\\s*?\\(\\s*?" + exeName + "\\s+(((\\S+)\\s+)*\\S+)\\s*\\)";

    Pattern pattern = Pattern.compile(regex);

    Scanner scanner = new Scanner(cmakelistDocument.getText());
    int exeExistFlag = EXE_NOT_EXIST;
    while (scanner.hasNextLine()) {
        String line = scanner.nextLine();
        Matcher m = pattern.matcher(line);
        if (m.find()) {
            //String existingExeName = m.group(1);
            String existingSourceName = m.group(1);
            if (existingSourceName.contains(relativeSourcePath)) {
                exeExistFlag = EXE_EXIST_SAME_SOURCE;
            } else {
                exeExistFlag = EXE_EXIST_DIFFERENT_SOURCE;
            }
            break;
        }
    }
    scanner.close();

    //LocalFileSystem.getInstance().findFileByIoFile();
    switch(exeExistFlag) {
        case EXE_NOT_EXIST:
            insertAddExecutable(cmakelistDocument, exeName, relativeSourcePath);
            Notifications.Bus.notify (
                    new Notification("singlefileexecutionaction", "Single File Execution Plugin", "add_executable added for " + sourceName + ".", NotificationType.INFORMATION)
            );
            break;
        case EXE_EXIST_SAME_SOURCE:
            // skip setText
            Notifications.Bus.notify (
                    new Notification("singlefileexecutionaction", "Single File Execution Plugin", "add_executable for this source already exists.", NotificationType.INFORMATION)
            );
            break;
        case EXE_EXIST_DIFFERENT_SOURCE:
            int okFlag;
            if (config.notShowOverwriteConfirmDialog) {
                // Do not show dialog & proceed
                okFlag = ExeOverwriteConfirmDialog.OK_FLAG_OK;
            } else {
                okFlag = ExeOverwriteConfirmDialog.show(project);
            }

            if (okFlag == ExeOverwriteConfirmDialog.OK_FLAG_OK) {
                // Ok
                updateAddExecutable(cmakelistDocument, exeName, relativeSourcePath);
                Notifications.Bus.notify(
                        new Notification("singlefileexecutionaction", "Single File Execution Plugin", "add_executable overwritten", NotificationType.INFORMATION)
                );
            } else {
                // cancel
                // do nothing so far
            }
            break;
    }

}
 

private String getPreviousChar(Document document, int offset) {
  return offset <= 0 ? " " : document.getText(new TextRange(offset - 1, offset));
}
 

private String getNextChar(Document document, int offset) {
  return offset >= document.getTextLength()
      ? " "
      : document.getText(new TextRange(offset, offset + 1));
}
 

private static String getSubstring(Document document, TextRange range) {
  return document.getText(range);
}
 

private void updateAddExecutable(final Document cmakelistDocument, final String exeName, final String relativeSourcePath) {
    String runtimeDir = config.getRuntimeOutputDirectory();
    String updatedDocument = "";

    /*
     * This regular expression finds
     * "add_executable(XXXX YYYY.cpp ZZZZ.cpp)" where XXXX is executable name, YYYY.cpp and ZZZZ.cpp are the source files.
     */
    String regex = "^add_executable\\s*?\\(\\s*?" + exeName + "\\s+(((\\S+)\\s+)*\\S+)\\s*\\)";
    Pattern pattern = Pattern.compile(regex);

    String regex2 = "^set_target_properties\\s*?\\(\\s*?" + exeName + "\\s+(((\\S+)\\s+)*\\S+)\\s*\\)";
    Pattern pattern2 = Pattern.compile(regex2);

    Scanner scanner = new Scanner(cmakelistDocument.getText());

    while (scanner.hasNextLine()) {
        String line = scanner.nextLine();

        Matcher m = pattern.matcher(line);
        Matcher m2 = pattern2.matcher(line);
        if (m2.find()) {
            /* Skip adding line for old "set_target_properties()" statement */
            continue;
        }
        if (m.find()) {
            /* add_executable */
            line = m.replaceFirst(constructAddExecutable(exeName, relativeSourcePath));
            /* set_target_properties */
            if (runtimeDir != null && !runtimeDir.equals("")) {
                String outputDir = quoteString(buildRuntimeOutputDirectory());
                line += "\n" + constructSetTargetProperties(exeName, outputDir);
            }
        }
        updatedDocument += line + '\n';
    }
    scanner.close();
    final String updatedText = updatedDocument;
    ApplicationManager.getApplication().runWriteAction(new Runnable() {
        @Override
        public void run() {
            cmakelistDocument.setText(updatedText);
        }
    });
}
 

@Override
public Result preprocessEnter(@Nonnull final PsiFile file, @Nonnull final Editor editor, @Nonnull Ref<Integer> caretOffsetRef,
                              @Nonnull final Ref<Integer> caretAdvanceRef, @Nonnull final DataContext dataContext,
                              final EditorActionHandler originalHandler) {
  int caretOffset = caretOffsetRef.get().intValue();
  int caretAdvance = caretAdvanceRef.get().intValue();
  if (!isInStringLiteral(editor, dataContext, caretOffset)) return Result.Continue;
  PsiDocumentManager.getInstance(file.getProject()).commitDocument(editor.getDocument());
  PsiElement psiAtOffset = file.findElementAt(caretOffset);
  if (psiAtOffset != null && psiAtOffset.getTextOffset() < caretOffset) {
    Document document = editor.getDocument();
    CharSequence text = document.getText();
    ASTNode token = psiAtOffset.getNode();
    JavaLikeQuoteHandler quoteHandler = getJavaLikeQuoteHandler(editor, psiAtOffset);

    if (quoteHandler != null &&
        quoteHandler.getConcatenatableStringTokenTypes() != null &&
        quoteHandler.getConcatenatableStringTokenTypes().contains(token.getElementType())) {
      TextRange range = token.getTextRange();
      final char literalStart = token.getText().charAt(0);
      final StringLiteralLexer lexer = new StringLiteralLexer(literalStart, token.getElementType());
      lexer.start(text, range.getStartOffset(), range.getEndOffset());

      while (lexer.getTokenType() != null) {
        if (lexer.getTokenStart() < caretOffset && caretOffset < lexer.getTokenEnd()) {
          if (StringEscapesTokenTypes.STRING_LITERAL_ESCAPES.contains(lexer.getTokenType())) {
            caretOffset = lexer.getTokenEnd();
          }
          break;
        }
        lexer.advance();
      }

      if (quoteHandler.needParenthesesAroundConcatenation(psiAtOffset)) {
        document.insertString(psiAtOffset.getTextRange().getEndOffset(), ")");
        document.insertString(psiAtOffset.getTextRange().getStartOffset(), "(");
        caretOffset++;
        caretAdvance++;
      }

      final String insertedFragment = literalStart + " " + quoteHandler.getStringConcatenationOperatorRepresentation();
      document.insertString(caretOffset, insertedFragment + " " + literalStart);
      caretOffset += insertedFragment.length();
      caretAdvance = 1;
      CommonCodeStyleSettings langSettings =
              CodeStyleSettingsManager.getSettings(file.getProject()).getCommonSettings(file.getLanguage());
      if (langSettings.BINARY_OPERATION_SIGN_ON_NEXT_LINE) {
        caretOffset -= 1;
        caretAdvance = 3;
      }
      caretOffsetRef.set(caretOffset);
      caretAdvanceRef.set(caretAdvance);
      return Result.DefaultForceIndent;
    }
  }
  return Result.Continue;
}
 

private String getBaseContent() {
  myBeforeFilePath.refresh();
  final Document doc = FileDocumentManager.getInstance().getDocument(myBeforeFilePath.getVirtualFile());
  return doc.getText();
}