public boolean canMoveTo(@Nullable final SourcePosition position) {
if (position == null || !position.getFile().isValid()) {
return false;
}
final PsiFile psiFile = position.getFile();
final Document document = PsiDocumentManager.getInstance(getProject()).getDocument(psiFile);
if (document == null) {
return false;
}
final int spOffset = position.getOffset();
if (spOffset < 0) {
return false;
}
final BreakpointManager breakpointManager =
DebuggerManagerEx.getInstanceEx(getProject()).getBreakpointManager();
return breakpointManager.findBreakpoint(document, spOffset, getCategory()) == null;
}
