34 lines
757 B
JavaScript
34 lines
757 B
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict-local
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* @format
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*/
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type BackPressEventName = 'backPress' | 'hardwareBackPress';
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type BackPressHandler = () => ?boolean;
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function emptyFunction(): void {}
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type TBackHandler = {
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exitApp(): void,
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addEventListener(
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eventName: BackPressEventName,
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handler: BackPressHandler,
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): {remove: () => void, ...},
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};
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const BackHandler: TBackHandler = {
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exitApp: emptyFunction,
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addEventListener(_eventName: BackPressEventName, _handler: BackPressHandler) {
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return {
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remove: emptyFunction,
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};
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},
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};
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export default BackHandler;
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