32 lines
842 B
Dart
32 lines
842 B
Dart
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class LoadableState<TState> {
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final LoadingState loadingState;
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final TState? data;
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const LoadableState({required this.loadingState, required this.data});
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LoadableState<TState> loading() =>
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LoadableState<TState>(loadingState: LoadingState.loading, data: null);
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LoadableState<TState> cached(TState state) =>
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LoadableState<TState>(loadingState: LoadingState.loading, data: state);
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LoadableState<TState> done(TState state) =>
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LoadableState<TState>(loadingState: LoadingState.none, data: state);
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LoadableState<TState> error(TState state) =>
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LoadableState<TState>(loadingState: LoadingState.none, data: state);
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bool isBackgroundLoading() =>
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loadingState == LoadingState.loading && data != null;
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bool hasStateData() =>
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data != null;
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}
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enum LoadingState {
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loading,
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failed,
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none,
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}
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