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27488ceb67
* dep(mobile): update flutter and deps * chore: dart analyzer * chore: update flutter workflow version * chore: dart format * fix: gallery_viewer PopScope --------- Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>
58 lines
1.4 KiB
Dart
58 lines
1.4 KiB
Dart
import 'dart:async';
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import 'package:flutter_hooks/flutter_hooks.dart';
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/// Throttles function calls with the [interval] provided.
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/// Also make sures to call the last Action after the elapsed interval
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class Throttler {
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final Duration interval;
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DateTime? _lastActionTime;
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Throttler({required this.interval});
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void run(FutureOr<void> Function() action) {
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if (_lastActionTime == null ||
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(DateTime.now().difference(_lastActionTime!) > interval)) {
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action();
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_lastActionTime = DateTime.now();
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}
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}
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void dispose() {
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_lastActionTime = null;
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}
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}
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/// Creates a [Throttler] that will be disposed automatically. If no [interval] is provided, a
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/// default interval of 300ms is used to throttle the function calls
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Throttler useThrottler({
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Duration interval = const Duration(milliseconds: 300),
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List<Object?>? keys,
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}) =>
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use(_ThrottleHook(interval: interval, keys: keys));
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class _ThrottleHook extends Hook<Throttler> {
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const _ThrottleHook({
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required this.interval,
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super.keys,
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});
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final Duration interval;
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@override
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HookState<Throttler, Hook<Throttler>> createState() => _ThrottlerHookState();
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}
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class _ThrottlerHookState extends HookState<Throttler, _ThrottleHook> {
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late final throttler = Throttler(interval: hook.interval);
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@override
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Throttler build(_) => throttler;
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@override
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void dispose() => throttler.dispose();
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@override
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String get debugLabel => 'useThrottler';
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}
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