loadMore method

Future<void> loadMore()

Loads the next page of older entries if there is one and no other load is running. Safe to call on every scroll event.

Implementation

Future<void> loadMore() async {
  final window = _window;
  final next = window.next;
  if (next == null || window.isQuerying || _loadMoreError != null) return;
  window.beginQuery();
  notifyListeners();
  try {
    final page = await reader.queryEntries(next);
    if (_isDisposed || !identical(window, _window)) return;
    window.completeQuery(page);
    notifyListeners();
  } on Object catch (error, stack) {
    _report('LogViewerController: failed to load more logs', error, stack);
    if (_isDisposed || !identical(window, _window)) return;
    window.failQuery();
    _loadMoreError = error;
    notifyListeners();
  }
}