86 lines
2.2 KiB
TypeScript
86 lines
2.2 KiB
TypeScript
import React, { ReactElement, useEffect, useRef } from 'react';
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import { makeStyles } from 'tss-react/mui';
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import { isMobileBrowser } from '../../../base/environment/utils';
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interface IProps {
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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: ReactElement;
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/**
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* Whether the component should be flex container or not.
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*/
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flex?: boolean;
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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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const useStyles = makeStyles()(() => {
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return {
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flex: {
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display: 'flex',
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flex: 1
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},
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base: {
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height: '100%',
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overflow: 'auto'
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}
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};
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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, flex }: IProps) {
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if (!isModal || !isMobileBrowser()) {
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return children;
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}
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const touchMoveElementRef = useRef<HTMLDivElement>(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?.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?.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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const { classes, cx } = useStyles();
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return (
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<div
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className = { cx(classes.base, flex && classes.flex) }
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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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