Examples with EduDocumentListener com.jetbrains.edu.learning.core.EduDocumentListener used on opensource projects

Example 6 with EduDocumentListener

use of com.jetbrains.edu.learning.core.EduDocumentListener in project intellij-community by JetBrains.

the class StudyCheckUtils method getCopyWithAnswers.

private static Pair<VirtualFile, TaskFile> getCopyWithAnswers(@NotNull final VirtualFile taskDir, @NotNull final VirtualFile file, @NotNull final TaskFile source) {
    try {
        VirtualFile answerFile = file.copy(taskDir, taskDir, file.getNameWithoutExtension() + EduNames.ANSWERS_POSTFIX + "." + file.getExtension());
        final FileDocumentManager documentManager = FileDocumentManager.getInstance();
        final Document document = documentManager.getDocument(answerFile);
        if (document != null) {
            TaskFile answerTaskFile = source.getTask().copy().getTaskFile(StudyUtils.pathRelativeToTask(file));
            if (answerTaskFile == null) {
                return null;
            }
            EduDocumentListener listener = new EduDocumentListener(answerTaskFile);
            document.addDocumentListener(listener);
            for (AnswerPlaceholder answerPlaceholder : answerTaskFile.getActivePlaceholders()) {
                final int start = answerPlaceholder.getOffset();
                final int end = start + answerPlaceholder.getRealLength();
                final String text = answerPlaceholder.getPossibleAnswer();
                document.replaceString(start, end, text);
            }
            ApplicationManager.getApplication().runWriteAction(() -> documentManager.saveDocument(document));
            return Pair.create(answerFile, answerTaskFile);
        }
    } catch (IOException e) {
        LOG.error(e);
    }
    return null;
}