react-native-mapsforge-vtm/lib/module/compose/usePromiseQueueState.js

React Native components to build vector maps using Mapsforges fork of vtm. Offline rendering of OpenStreetMap data. Android only

"use strict";

/**
 * External dependencies
 */
import { useEffect, useState } from 'react';

/**
 * Internal dependencies
 */
import promiseQueue from "../promiseQueue.js";
const State = {
  IDLE: 0,
  RUNNING: 1,
  STOPPED: 2
};
const usePromiseQueueState = () => {
  const [state, setState] = useState(-1);
  const handleStart = () => setState(State.RUNNING);
  const handleStop = () => setState(State.STOPPED);
  const handleEnd = () => setState(State.IDLE);
  useEffect(() => {
    promiseQueue.on('start', handleStart);
    promiseQueue.on('stop', handleStop);
    promiseQueue.on('end', handleEnd);
    switch (true) {
      case 1 === promiseQueue?.state?.RUNNING:
      case promiseQueue.shouldRun:
        setState(State.RUNNING);
        break;
      case 2 === promiseQueue?.state?.STOPPED:
        setState(State.STOPPED);
        break;
      default:
        setState(State.IDLE);
    }
    return () => {
      promiseQueue.removeListener('start', handleStart);
      promiseQueue.removeListener('stop', handleStop);
      promiseQueue.removeListener('end', handleEnd);
    };
  }, []);
  return state;
};
export default usePromiseQueueState;
//# sourceMappingURL=usePromiseQueueState.js.map