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