mirror of https://github.com/vector-im/riot-web
56 lines
1.8 KiB
TypeScript
56 lines
1.8 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { logger } from "matrix-js-sdk/src/logger";
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import { useCallback, useEffect, useRef } from "react";
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import SettingsStore from "../settings/SettingsStore";
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const debuglog = (...args: any[]): void => {
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if (SettingsStore.getValue("debug_animation")) {
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logger.log.call(console, "Animation debuglog:", ...args);
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}
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};
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export function useAnimation(enabled: boolean, callback: (timestamp: DOMHighResTimeStamp) => boolean): void {
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const handle = useRef<number | null>(null);
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const handler = useCallback(
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(timestamp: DOMHighResTimeStamp) => {
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if (callback(timestamp)) {
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handle.current = requestAnimationFrame(handler);
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} else {
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debuglog("Finished animation!");
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}
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},
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[callback],
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);
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useEffect(() => {
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debuglog("Started animation!");
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if (enabled) {
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handle.current = requestAnimationFrame(handler);
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}
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return () => {
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if (handle.current) {
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debuglog("Aborted animation!");
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cancelAnimationFrame(handle.current);
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handle.current = null;
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}
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};
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}, [enabled, handler]);
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}
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