Use media query to detect touchscreens

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

src/components/dropdown-menu/dropdown-menu.tsx

@@ -7,7 +7,7 @@ import { useHistory } from 'react-router-dom';
 import { closeDropdownMenu as closeDropdownMenuRedux, openDropdownMenu } from 'soapbox/actions/dropdown-menu';
 import { closeModal, openModal } from 'soapbox/actions/modals';
 import { useAppDispatch } from 'soapbox/hooks';
-import { isUserTouching } from 'soapbox/is-mobile';
+import { userTouching } from 'soapbox/is-mobile';
 
 import { IconButton, Portal } from '../ui';
 
@@ -53,8 +53,6 @@ const DropdownMenu = (props: IDropdownMenu) => {
 
   const arrowRef = useRef<HTMLDivElement>(null);
 
-  const isOnMobile = isUserTouching();
-
   const { x, y, strategy, refs, middlewareData, placement } = useFloating<HTMLButtonElement>({
     placement: initialPlacement,
     middleware: [
@@ -92,7 +90,7 @@ const DropdownMenu = (props: IDropdownMenu) => {
    * On mobile screens, let's replace the Popper dropdown with a Modal.
    */
   const handleOpen = () => {
-    if (isOnMobile) {
+    if (userTouching.matches) {
       dispatch(
         openModal('ACTIONS', {
           status: filteredProps.status,
@@ -113,7 +111,7 @@ const DropdownMenu = (props: IDropdownMenu) => {
   const handleClose = () => {
     (refs.reference.current as HTMLButtonElement)?.focus();
 
-    if (isOnMobile) {
+    if (userTouching.matches) {
       dispatch(closeModal('ACTIONS'));
     } else {
       closeDropdownMenu();

src/components/status-reaction-wrapper.tsx

@@ -4,7 +4,7 @@ import { simpleEmojiReact } from 'soapbox/actions/emoji-reacts';
 import { openModal } from 'soapbox/actions/modals';
 import { EmojiSelector, Portal } from 'soapbox/components/ui';
 import { useAppDispatch, useAppSelector, useOwnAccount, useSoapboxConfig } from 'soapbox/hooks';
-import { isUserTouching } from 'soapbox/is-mobile';
+import { userTouching } from 'soapbox/is-mobile';
 import { getReactForStatus } from 'soapbox/utils/emoji-reacts';
 
 interface IStatusReactionWrapper {
@@ -39,7 +39,7 @@ const StatusReactionWrapper: React.FC<IStatusReactionWrapper> = ({ statusId, chi
       clearTimeout(timeout.current);
     }
 
-    if (!isUserTouching()) {
+    if (!userTouching.matches) {
       setVisible(true);
     }
   };
@@ -51,7 +51,7 @@ const StatusReactionWrapper: React.FC<IStatusReactionWrapper> = ({ statusId, chi
 
     // Unless the user is touching, delay closing the emoji selector briefly
     // so the user can move the mouse diagonally to make a selection.
-    if (isUserTouching()) {
+    if (userTouching.matches) {
       setVisible(false);
     } else {
       timeout.current = setTimeout(() => {
@@ -73,7 +73,7 @@ const StatusReactionWrapper: React.FC<IStatusReactionWrapper> = ({ statusId, chi
   const handleClick: React.EventHandler<React.MouseEvent> = e => {
     const meEmojiReact = getReactForStatus(status, soapboxConfig.allowedEmoji)?.name || '👍';
 
-    if (isUserTouching()) {
+    if (userTouching.matches) {
       if (ownAccount) {
         if (visible) {
           handleReact(meEmojiReact);

src/features/compose/components/privacy-dropdown.tsx

@@ -11,7 +11,7 @@ import { closeModal, openModal } from 'soapbox/actions/modals';
 import Icon from 'soapbox/components/icon';
 import { IconButton } from 'soapbox/components/ui';
 import { useAppDispatch, useCompose } from 'soapbox/hooks';
-import { isUserTouching } from 'soapbox/is-mobile';
+import { userTouching } from 'soapbox/is-mobile';
 
 import Motion from '../../ui/util/optional-motion';
 
@@ -173,7 +173,7 @@ const PrivacyDropdown: React.FC<IPrivacyDropdown> = ({
   const onModalClose = () => dispatch(closeModal('ACTIONS'));
 
   const handleToggle: React.MouseEventHandler<HTMLButtonElement> = (e) => {
-    if (isUserTouching()) {
+    if (userTouching.matches) {
       if (open) {
         onModalClose();
       } else {

src/features/ui/components/modals/media-modal.tsx

@@ -15,7 +15,7 @@ import PlaceholderStatus from 'soapbox/features/placeholder/components/placehold
 import Thread from 'soapbox/features/status/components/thread';
 import Video from 'soapbox/features/video';
 import { useAppDispatch, useAppSelector } from 'soapbox/hooks';
-import { isUserTouching } from 'soapbox/is-mobile';
+import { userTouching } from 'soapbox/is-mobile';
 import { makeGetStatus } from 'soapbox/selectors';
 
 import ImageLoader from '../image-loader';
@@ -104,7 +104,7 @@ const MediaModal: React.FC<IMediaModal> = (props) => {
   const getIndex = () => index !== null ? index : props.index;
 
   const toggleNavigation = () => {
-    setNavigationHidden(value => !value && isUserTouching());
+    setNavigationHidden(value => !value && userTouching.matches);
   };
 
   const handleStatusClick: React.MouseEventHandler = e => {

src/is-mobile.ts

@@ -1,5 +1,3 @@
-import { supportsPassiveEvents } from 'detect-passive-events';
-
 /** Breakpoint at which the application is considered "mobile". */
 const LAYOUT_BREAKPOINT = 630;
 
@@ -11,20 +9,7 @@ export function isMobile(width: number) {
 /** Whether the device is iOS (best guess). */
 const iOS: boolean = /iPad|iPhone|iPod/.test(navigator.userAgent) && !(window as any).MSStream;
 
-let userTouching = false;
-const listenerOptions = supportsPassiveEvents ? { passive: true } as EventListenerOptions : false;
-
-function touchListener(): void {
-  userTouching = true;
-  window.removeEventListener('touchstart', touchListener, listenerOptions);
-}
-
-window.addEventListener('touchstart', touchListener, listenerOptions);
-
-/** Whether the user has touched the screen since the page loaded. */
-export function isUserTouching(): boolean {
-  return userTouching;
-}
+export const userTouching = window.matchMedia('(pointer: coarse)');
 
 /** Whether the device is iOS (best guess). */
 export function isIOS(): boolean {