35 lines
1,006 B
TypeScript
35 lines
1,006 B
TypeScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import {useState} from 'react';
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import {DeviceEventEmitter} from 'react-native';
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import {Events} from '@constants';
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import useDidMount from './did_mount';
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export const useChannelSwitch = () => {
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const [loading, setLoading] = useState(false);
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useDidMount(() => {
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let time: NodeJS.Timeout | undefined;
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const l = DeviceEventEmitter.addListener(Events.CHANNEL_SWITCH, (switching: boolean) => {
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if (time) {
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clearTimeout(time);
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}
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if (switching) {
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setLoading(true);
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} else {
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// eslint-disable-next-line max-nested-callbacks
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time = setTimeout(() => setLoading(false), 0);
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}
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});
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return () => {
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l.remove();
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if (time) {
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clearTimeout(time);
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}
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};
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});
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return loading;
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};
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