debounce<T> method

void debounce<T>(DebounceCallback<T> callback, { Duration duration = const Duration(milliseconds: 300), DebounceResultConsumer<T>? consumer, DebounceErrorConsumer? errorConsumer, })

Debounce a callback.

• callback: The callback to be debounced.
• duration: The duration to wait before calling the callback.
• consumer: The consumer to be called when the callback is called.
• errorConsumer: The consumer to be called when the callback throws an error.

Implementation

void debounce<T>(
  DebounceCallback<T> callback, {
  Duration duration = const Duration(milliseconds: 300),
  DebounceResultConsumer<T>? consumer,
  DebounceErrorConsumer? errorConsumer,
}) {
  assert(!_debugDisposed, 'DebounceController is disposed');
  _session?.cancel();
  _session = _DebounceTimerSession(Timer(
    duration,
    () {
      try {
        var result = callback();
        if (result is Future<T>) {
          result.then((value) {
            consumer?.call(value);
          }).catchError((error, stackTrace) {
            errorConsumer?.call(error, stackTrace);
          }).whenComplete(() {
            _session = null;
            notifyListeners();
          });
          return;
        } else {
          consumer?.call(result);
        }
      } catch (error, stackTrace) {
        errorConsumer?.call(error, stackTrace);
      }
      _session = null;
      notifyListeners();
    },
  ));
  notifyListeners();
}