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Request location only when necessary in MapView #36761

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merged 8 commits into from
Feb 20, 2024
Merged

Request location only when necessary in MapView #36761

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6fb17e7
Request location only when necessary in MapView
esh-g Feb 17, 2024
d1725f4
Fix lint
esh-g Feb 17, 2024
6c1924a
Fix lint
esh-g Feb 18, 2024
59cb60b
Update src/components/MapView/MapView.tsx
esh-g Feb 19, 2024
1faec43
Remove unecessary dependency
esh-g Feb 20, 2024
fde1898
Rename current position
esh-g Feb 20, 2024
75a173f
Prettify 💫
esh-g Feb 20, 2024
b2f2dac
Update src/components/MapView/MapView.tsx
esh-g Feb 20, 2024
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54 changes: 29 additions & 25 deletions src/components/MapView/MapView.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,42 +30,46 @@ const MapView = forwardRef<MapViewHandle, ComponentProps>(
const [isIdle, setIsIdle] = useState(false);
const [currentPosition, setCurrentPosition] = useState(cachedUserLocation);
const [userInteractedWithMap, setUserInteractedWithMap] = useState(false);
const hasAskedForLocationPermission = useRef(false);
const shouldInitializeCurrentPosition = useRef(true);

// Determines if map can be panned to user's detected
// location without bothering the user. It will return
// false if user has already started dragging the map or
// if there are one or more waypoints present.
const shouldPanMapToCurrentPosition = useCallback(() => !userInteractedWithMap && (!waypoints || waypoints.length === 0), [userInteractedWithMap, waypoints]);

const setCurrentPositionToInitialState = useCallback(() => {
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
if (cachedUserLocation || !initialState) {
return;
}
setCurrentPosition({longitude: initialState.location[0], latitude: initialState.location[1]});
}, [initialState, cachedUserLocation]);

useFocusEffect(
useCallback(() => {
if (isOffline) {
return;
}

if (hasAskedForLocationPermission.current) {
if (!shouldInitializeCurrentPosition.current) {
return;
}

hasAskedForLocationPermission.current = true;
getCurrentPosition(
(params) => {
const currentCoords = {longitude: params.coords.longitude, latitude: params.coords.latitude};
setCurrentPosition(currentCoords);
setUserLocation(currentCoords);
},
() => {
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
if (cachedUserLocation || !initialState) {
return;
}

setCurrentPosition({longitude: initialState.location[0], latitude: initialState.location[1]});
},
);
}, [cachedUserLocation, initialState, isOffline]),
);
shouldInitializeCurrentPosition.current = false;

// Determines if map can be panned to user's detected
// location without bothering the user. It will return
// false if user has already started dragging the map or
// if there are one or more waypoints present.
const shouldPanMapToCurrentPosition = useCallback(() => !userInteractedWithMap && (!waypoints || waypoints.length === 0), [userInteractedWithMap, waypoints]);
if (!shouldPanMapToCurrentPosition()) {
setCurrentPositionToInitialState();
return;
}

Comment on lines +61 to +65
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Why don't we just return early?

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@s77rt It is because currentPosition needs to bet set so that pending view is not displayed.

App/src/components/MapView/MapView.tsx

Line 145 in 6f3d8f6

{!isOffline && Boolean(accessToken) && Boolean(currentPosition) ? (

getCurrentPosition((params) => {
const currentCoords = {longitude: params.coords.longitude, latitude: params.coords.latitude};
setCurrentPosition(currentCoords);
setUserLocation(currentCoords);
}, setCurrentPositionToInitialState);
}, [isOffline, shouldPanMapToCurrentPosition, setCurrentPositionToInitialState]),
);

useEffect(() => {
if (!currentPosition || !cameraRef.current) {
Expand Down
54 changes: 29 additions & 25 deletions src/components/MapView/MapView.website.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -53,42 +53,46 @@ const MapView = forwardRef<MapViewHandle, ComponentProps>(
const [userInteractedWithMap, setUserInteractedWithMap] = useState(false);
const [shouldResetBoundaries, setShouldResetBoundaries] = useState<boolean>(false);
const setRef = useCallback((newRef: MapRef | null) => setMapRef(newRef), []);
const hasAskedForLocationPermission = useRef(false);
const shouldInitializeCurrentPosition = useRef(true);

// Determines if map can be panned to user's detected
// location without bothering the user. It will return
// false if user has already started dragging the map or
// if there are one or more waypoints present.
const shouldPanMapToCurrentPosition = useCallback(() => !userInteractedWithMap && (!waypoints || waypoints.length === 0), [userInteractedWithMap, waypoints]);

const setCurrentPositionToInitialState = useCallback(() => {
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
if (cachedUserLocation || !initialState) {
return;
}
setCurrentPosition({longitude: initialState.location[0], latitude: initialState.location[1]});
}, [initialState, cachedUserLocation]);

useFocusEffect(
useCallback(() => {
if (isOffline) {
return;
}

if (hasAskedForLocationPermission.current) {
if (!shouldInitializeCurrentPosition.current) {
return;
}

hasAskedForLocationPermission.current = true;
getCurrentPosition(
(params) => {
const currentCoords = {longitude: params.coords.longitude, latitude: params.coords.latitude};
setCurrentPosition(currentCoords);
setUserLocation(currentCoords);
},
() => {
// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
if (cachedUserLocation || !initialState) {
return;
}

setCurrentPosition({longitude: initialState.location[0], latitude: initialState.location[1]});
},
);
}, [cachedUserLocation, initialState, isOffline]),
);
shouldInitializeCurrentPosition.current = false;

// Determines if map can be panned to user's detected
// location without bothering the user. It will return
// false if user has already started dragging the map or
// if there are one or more waypoints present.
const shouldPanMapToCurrentPosition = useCallback(() => !userInteractedWithMap && (!waypoints || waypoints.length === 0), [userInteractedWithMap, waypoints]);
if (!shouldPanMapToCurrentPosition()) {
setCurrentPositionToInitialState();
return;
}

getCurrentPosition((params) => {
const currentCoords = {longitude: params.coords.longitude, latitude: params.coords.latitude};
setCurrentPosition(currentCoords);
setUserLocation(currentCoords);
}, setCurrentPositionToInitialState);
}, [isOffline, shouldPanMapToCurrentPosition, setCurrentPositionToInitialState]),
);

useEffect(() => {
if (!currentPosition || !mapRef) {
Expand Down
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