47 lines
966 B
TypeScript
Executable File
47 lines
966 B
TypeScript
Executable File
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { onActivated, onDeactivated, onMounted, onUnmounted } from 'vue';
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export function useInterval(fn: () => void, interval: number, options: {
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immediate: boolean;
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afterMounted: boolean;
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}): (() => void) | undefined {
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if (Number.isNaN(interval)) return;
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let intervalId: number | null = null;
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if (options.afterMounted) {
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onMounted(() => {
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if (options.immediate) fn();
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intervalId = window.setInterval(fn, interval);
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});
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} else {
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if (options.immediate) fn();
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intervalId = window.setInterval(fn, interval);
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}
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const clear = () => {
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if (intervalId) window.clearInterval(intervalId);
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intervalId = null;
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};
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onActivated(() => {
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if (intervalId) return;
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if (options.immediate) fn();
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intervalId = window.setInterval(fn, interval);
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});
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onDeactivated(() => {
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clear();
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});
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onUnmounted(() => {
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clear();
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});
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return clear;
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}
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