27 lines
889 B
JavaScript
27 lines
889 B
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var react_1 = require("react");
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var util_1 = require("./misc/util");
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var useBeforeUnload = function (enabled, message) {
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if (enabled === void 0) { enabled = true; }
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var handler = react_1.useCallback(function (event) {
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var finalEnabled = typeof enabled === 'function' ? enabled() : true;
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if (!finalEnabled) {
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return;
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}
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event.preventDefault();
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if (message) {
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event.returnValue = message;
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}
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return message;
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}, [enabled, message]);
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react_1.useEffect(function () {
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if (!enabled) {
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return;
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}
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util_1.on(window, 'beforeunload', handler);
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return function () { return util_1.off(window, 'beforeunload', handler); };
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}, [enabled, handler]);
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};
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exports.default = useBeforeUnload;
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