@Nullable
private static AnswerPlaceholder getAnswerPlaceholder(AnActionEvent e) {
final Project project = e.getProject();
if (project == null) {
return null;
}
StudyEditor studyEditor = StudyUtils.getSelectedStudyEditor(project);
final StudyState studyState = new StudyState(studyEditor);
if (studyEditor == null || !studyState.isValid()) {
return null;
}
final Editor editor = studyState.getEditor();
final TaskFile taskFile = studyState.getTaskFile();
return taskFile.getAnswerPlaceholder(editor.getCaretModel().getOffset());
}
@Override
public void actionPerformed(AnActionEvent e) {
Project project = e.getProject();
if (project == null) {
return;
}
for (StudyActionListener listener : Extensions.getExtensions(StudyActionListener.EP_NAME)) {
listener.beforeCheck(e);
}
final AnswerPlaceholder answerPlaceholder = getAnswerPlaceholder(e);
if (answerPlaceholder == null) {
return;
}
StudyEditor studyEditor = StudyUtils.getSelectedStudyEditor(project);
final StudyState studyState = new StudyState(studyEditor);
if (answerPlaceholder.getTaskFile().getTask().hasSubtasks()) {
StudySubtaskUtils.refreshPlaceholder(studyState.getEditor(), answerPlaceholder);
return;
}
Document patternDocument =
StudyUtils.getPatternDocument(
answerPlaceholder.getTaskFile(), studyState.getVirtualFile().getName());
if (patternDocument == null) {
return;
}
AnswerPlaceholder.MyInitialState initialState = answerPlaceholder.getInitialState();
int startOffset = initialState.getOffset();
final String text =
patternDocument.getText(new TextRange(startOffset, startOffset + initialState.getLength()));
CommandProcessor.getInstance()
.executeCommand(
project,
() ->
ApplicationManager.getApplication()
.runWriteAction(
() -> {
Document document = studyState.getEditor().getDocument();
int offset = answerPlaceholder.getOffset();
document.deleteString(offset, offset + answerPlaceholder.getRealLength());
document.insertString(offset, text);
}),
NAME,
null);
}