bc39b38bf4
* fix: reset iOS scrollView when switching channels
* cancel animation frame after resetting the scrollview
* add useResetNativeScrollView hook
(cherry picked from commit b2d233b5ed)
Co-authored-by: Elias Nahum <nahumhbl@gmail.com>
24 lines
843 B
TypeScript
24 lines
843 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 {useEffect, useRef} from 'react';
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import {UPDATE_NATIVE_SCROLLVIEW} from '@constants/post_draft';
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import EventEmitter from '@mm-redux/utils/event_emitter';
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export const useResetNativeScrollView = (scrollViewNativeID: string | undefined, postIds: string[]) => {
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const prevPostCount = useRef(postIds.length);
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useEffect(() => {
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if (scrollViewNativeID) {
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EventEmitter.emit(UPDATE_NATIVE_SCROLLVIEW, scrollViewNativeID);
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}
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}, [scrollViewNativeID]);
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useEffect(() => {
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if (!prevPostCount.current && postIds.length) {
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EventEmitter.emit(UPDATE_NATIVE_SCROLLVIEW, scrollViewNativeID);
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}
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prevPostCount.current = postIds.length;
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}, [postIds]);
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};
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