68 lines
1.8 KiB
JavaScript
68 lines
1.8 KiB
JavaScript
// @flow
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import React, { useEffect, useRef } from 'react';
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import { isMobileBrowser } from '../../../base/environment/utils';
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type Props = {
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/**
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* The component(s) that need to be scrollable on mobile.
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*/
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children: React$Node,
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/**
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* Whether the component is rendered within a modal.
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*/
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isModal: boolean
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};
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/**
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* Component that disables {@code touchmove} propagation below it.
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*
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* @returns {ReactElement}
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*/
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function TouchmoveHack({ children, isModal }: Props) {
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if (!isModal || !isMobileBrowser()) {
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return children;
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}
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const touchMoveElementRef = useRef(null);
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/**
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* Atlaskit's {@code Modal} uses a third party library to disable touchmove events
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* which makes scrolling inside dialogs impossible. We therefore employ this hack
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* to intercept and stop the propagation of touchmove events from this wrapper that
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* is placed around the chat conversation from the {@code ChatDialog}.
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*
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* @param {Event} event - The touchmove event fired within the component.
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* @returns {void}
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*/
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function handleTouchMove(event: TouchEvent) {
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event.stopImmediatePropagation();
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}
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useEffect(() => {
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if (touchMoveElementRef && touchMoveElementRef.current) {
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touchMoveElementRef.current.addEventListener('touchmove', handleTouchMove, true);
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}
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return () => {
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if (touchMoveElementRef && touchMoveElementRef.current) {
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touchMoveElementRef.current.removeEventListener('touchmove', handleTouchMove, true);
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}
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};
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}, []);
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return (
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<div
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className = 'touchmove-hack'
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ref = { touchMoveElementRef }>
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{children}
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</div>
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);
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}
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export default TouchmoveHack;
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