56 lines
2.0 KiB
JavaScript
56 lines
2.0 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.useBackPressSubscription = useBackPressSubscription;
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var _react = _interopRequireDefault(require("react"));
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var _reactNative = require("react-native");
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* This hook is an abstraction for keeping back press subscription
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* logic in one place.
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*/
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function useBackPressSubscription(_ref) {
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let {
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onBackPress,
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isDisabled
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} = _ref;
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const [isActive, setIsActive] = _react.default.useState(false);
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const subscription = _react.default.useRef();
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const clearSubscription = _react.default.useCallback(function () {
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var _subscription$current;
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let shouldSetActive = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
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(_subscription$current = subscription.current) === null || _subscription$current === void 0 ? void 0 : _subscription$current.remove();
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subscription.current = undefined;
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if (shouldSetActive) setIsActive(false);
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}, []);
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const createSubscription = _react.default.useCallback(() => {
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if (!isDisabled) {
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var _subscription$current2;
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(_subscription$current2 = subscription.current) === null || _subscription$current2 === void 0 ? void 0 : _subscription$current2.remove();
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subscription.current = _reactNative.BackHandler.addEventListener('hardwareBackPress', onBackPress);
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setIsActive(true);
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}
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}, [isDisabled, onBackPress]);
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const handleAttached = _react.default.useCallback(() => {
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if (isActive) {
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createSubscription();
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}
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}, [createSubscription, isActive]);
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const handleDetached = _react.default.useCallback(() => {
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clearSubscription(false);
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}, [clearSubscription]);
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_react.default.useEffect(() => {
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if (isDisabled) {
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clearSubscription();
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}
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}, [isDisabled, clearSubscription]);
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return {
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handleAttached,
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handleDetached,
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createSubscription,
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clearSubscription
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};
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}
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//# sourceMappingURL=useBackPressSubscription.js.map
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