react-native-mapsforge-vtm/lib/commonjs/components/LayerMBTilesBitmap.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 _useRefState = _interopRequireDefault(require("../compose/useRefState.js"));
var _promiseQueue = _interopRequireDefault(require("../promiseQueue.js"));
var _nativeMapModules = require("../nativeMapModules.js");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
/**
 * External dependencies
 */

/**
 * Internal dependencies
 */

const Module = _nativeMapModules.MapLayerMBTilesBitmapModule;
;
const LayerMBTilesBitmap = ({
  nativeNodeHandle,
  reactTreeIndex,
  mapFile,
  enabledZoomMin = 1,
  enabledZoomMax = 20,
  alpha = 256,
  transparentColor,
  onCreate,
  onRemove,
  onChange,
  onError
}) => {
  // @ts-ignore
  const [random, setRandom] = (0, _react.useState)(0);
  const [uuid, setUuid] = (0, _useRefState.default)(null);
  const [triggerCreateNew, setTriggerCreateNew] = (0, _react.useState)(null);
  alpha = Math.round(alpha);
  const createLayer = () => {
    setUuid(false);
    _promiseQueue.default.enqueue(() => {
      return Module.createLayer(nativeNodeHandle, mapFile, Math.round(enabledZoomMin), Math.round(enabledZoomMax), alpha, transparentColor, reactTreeIndex).then(response => {
        setUuid(response.uuid);
        setRandom(Math.random());
        null === triggerCreateNew ? onCreate ? onCreate(response) : null : onChange ? onChange(response) : null;
      }).catch(err => {
        console.log('ERROR', err);
        onError ? onError(err) : null;
      });
    });
  };
  (0, _react.useEffect)(() => {
    if (uuid === null && nativeNodeHandle && mapFile) {
      createLayer();
    }
    return () => {
      if (uuid && nativeNodeHandle) {
        _promiseQueue.default.enqueue(() => {
          return Module.removeLayer(nativeNodeHandle, uuid).then(removedUuid => {
            onRemove ? onRemove({
              uuid: removedUuid
            }) : null;
          }).catch(err => {
            console.log('ERROR', err);
            onError ? onError(err) : null;
          });
        });
      }
    };
  }, [nativeNodeHandle, !!uuid, triggerCreateNew]);

  // enabledZoomMin enabledZoomMax changed.
  (0, _react.useEffect)(() => {
    if (nativeNodeHandle && uuid) {
      Module.updateEnabledZoomMinMax(nativeNodeHandle, uuid, Math.round(enabledZoomMin), Math.round(enabledZoomMax)).catch(err => {
        console.log('ERROR', err);
        onError ? onError(err) : null;
      });
    }
  }, [enabledZoomMin, enabledZoomMax]);
  (0, _react.useEffect)(() => {
    if (nativeNodeHandle) {
      if (uuid) {
        _promiseQueue.default.enqueue(() => {
          return Module.removeLayer(nativeNodeHandle, uuid).then(() => {
            setUuid(null);
            setTriggerCreateNew(Math.random());
          }).catch(err => {
            console.log('ERROR', err);
            onError ? onError(err) : null;
          });
        });
      } else if (uuid === null && mapFile) {
        setTriggerCreateNew(Math.random());
      }
    }
  }, [mapFile, alpha, transparentColor]);
  return null;
};
LayerMBTilesBitmap.isMapLayer = true;
var _default = exports.default = LayerMBTilesBitmap;
//# sourceMappingURL=LayerMBTilesBitmap.js.map