48 lines
1.1 KiB
TypeScript
48 lines
1.1 KiB
TypeScript
// Copyright 2018-2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import type { LocalizerType } from './types/Util';
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const DISPLAY_THRESHOLD = 3000; // milliseconds
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const SELECTOR = '.app-loading-screen .message';
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let timeout: null | ReturnType<typeof setTimeout>;
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let targetString: string;
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let didTimeout = false;
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const clear = () => {
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if (timeout) {
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clearTimeout(timeout);
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timeout = null;
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}
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};
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export function setAppLoadingScreenMessage(
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loadingText: undefined | string,
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i18n: LocalizerType
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): () => void {
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const message = document.querySelector<HTMLElement>(SELECTOR);
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if (!message) {
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return clear;
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}
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targetString = loadingText || i18n('optimizingApplication');
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message.innerText = didTimeout ? targetString : i18n('loading');
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if (timeout) {
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return clear;
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}
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timeout = setTimeout(() => {
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didTimeout = true;
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const innerMessage = document.querySelector<HTMLElement>(SELECTOR);
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if (!innerMessage) {
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return;
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}
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innerMessage.innerText = targetString;
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}, DISPLAY_THRESHOLD);
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return clear;
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}
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