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

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

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _react = require("react");
var _promiseQueue = _interopRequireDefault(require("../promiseQueue.js"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/**
 * External dependencies
 */

/**
 * Internal dependencies
 */

const State = {
  IDLE: 0,
  RUNNING: 1,
  STOPPED: 2
};
const usePromiseQueueState = () => {
  const [state, setState] = (0, _react.useState)(-1);
  const handleStart = () => setState(State.RUNNING);
  const handleStop = () => setState(State.STOPPED);
  const handleEnd = () => setState(State.IDLE);
  (0, _react.useEffect)(() => {
    _promiseQueue.default.on('start', handleStart);
    _promiseQueue.default.on('stop', handleStop);
    _promiseQueue.default.on('end', handleEnd);
    switch (true) {
      case 1 === _promiseQueue.default?.state?.RUNNING:
      case _promiseQueue.default.shouldRun:
        setState(State.RUNNING);
        break;
      case 2 === _promiseQueue.default?.state?.STOPPED:
        setState(State.STOPPED);
        break;
      default:
        setState(State.IDLE);
    }
    return () => {
      _promiseQueue.default.removeListener('start', handleStart);
      _promiseQueue.default.removeListener('stop', handleStop);
      _promiseQueue.default.removeListener('end', handleEnd);
    };
  }, []);
  return state;
};
var _default = exports.default = usePromiseQueueState;
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