59 lines
2.1 KiB
JavaScript
59 lines
2.1 KiB
JavaScript
import { Platform } from 'expo-modules-core';
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import ExpoLocation from './ExpoLocation';
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import { LocationAccuracy } from './Location.types';
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import { LocationSubscriber } from './LocationSubscribers';
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// @needsAudit
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/**
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* Polyfills `navigator.geolocation` for interop with the core React Native and Web API approach to geolocation.
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*/
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export function installWebGeolocationPolyfill() {
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if (Platform.OS !== 'web') {
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// Make sure `window.navigator` is defined in the global scope.
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if (!('window' in global)) {
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global.window = global;
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}
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if (!('navigator' in global.window)) {
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global.window.navigator = {};
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}
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// @ts-ignore
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window.navigator.geolocation = {
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getCurrentPosition,
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watchPosition,
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clearWatch,
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};
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}
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}
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function convertGeolocationOptions(options) {
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return {
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accuracy: options.enableHighAccuracy ? LocationAccuracy.High : LocationAccuracy.Balanced,
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};
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}
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function getCurrentPosition(success, error = () => { }, options = {}) {
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_getCurrentPositionAsyncWrapper(success, error, options);
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}
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// This function exists to let us continue to return undefined from getCurrentPosition, while still
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// using async/await for the internal implementation of it
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async function _getCurrentPositionAsyncWrapper(success, error, options) {
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try {
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await ExpoLocation.requestPermissionsAsync();
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const result = await ExpoLocation.getCurrentPositionAsync(convertGeolocationOptions(options));
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success(result);
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}
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catch (e) {
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error(e);
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}
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}
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// Polyfill: navigator.geolocation.watchPosition
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function watchPosition(success, error, options) {
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const watchId = LocationSubscriber.registerCallback(success);
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ExpoLocation.watchPositionImplAsync(watchId, options).catch((err) => {
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LocationSubscriber.unregisterCallback(watchId);
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error({ watchId, message: err.message, code: err.code });
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});
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return watchId;
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}
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// Polyfill: navigator.geolocation.clearWatch
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function clearWatch(watchId) {
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LocationSubscriber.unregisterCallback(watchId);
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}
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//# sourceMappingURL=GeolocationPolyfill.js.map
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