@uiw/react-baidu-map-scale-control/cjs/useScaleControl.js

Baidu Map scale-control Components for React.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useScaleControl = useScaleControl;
var _react = require("react");
var _reactBaiduMapMap = require("@uiw/react-baidu-map-map");
var _reactBaiduMapUtils = require("@uiw/react-baidu-map-utils");
function useScaleControl() {
  let props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  const [scaleControl, setScaleControl] = (0, _react.useState)();
  const {
    anchor,
    offset
  } = props;
  const {
    map
  } = (0, _reactBaiduMapMap.useMapContext)();
  (0, _react.useEffect)(() => {
    if (map && !scaleControl) {
      const instance = new BMap.ScaleControl({
        anchor: anchor || BMAP_ANCHOR_TOP_LEFT,
        offset
      });
      map.addControl(instance);
      setScaleControl(instance);
    }
    return () => {
      if (map && scaleControl) {
        try {
          map.removeControl(scaleControl);
        } catch (error) {}
      }
    };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [map, scaleControl]);
  (0, _reactBaiduMapUtils.useVisiable)(scaleControl, props);
  (0, _reactBaiduMapUtils.useProperties)(scaleControl, props, ['Anchor', 'Offset', 'Unit']);
  return {
    scaleControl,
    setScaleControl
  };
}