22 lines
497 B
TypeScript
22 lines
497 B
TypeScript
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// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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export function waitForOnline(
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navigator: Readonly<{ onLine: boolean }>,
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onlineEventTarget: EventTarget
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): Promise<void> {
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return new Promise(resolve => {
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if (navigator.onLine) {
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resolve();
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return;
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}
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const listener = () => {
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onlineEventTarget.removeEventListener('online', listener);
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resolve();
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};
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onlineEventTarget.addEventListener('online', listener);
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});
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}
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