@uiw/react-baidu-map-drawing-manager/esm/useDrawingManager.js

Baidu Map drawing-manager Components for React.

import { useState, useMemo } from 'react';
import { useMapContext } from '@uiw/react-baidu-map-map';
import { requireScript, requireCss, useEventProperties } from '@uiw/react-baidu-map-utils';
export function useDrawingManager(props) {
  if (props === void 0) {
    props = {};
  }
  var {
    isOpen,
    drawingMode,
    enableDrawingTool,
    enableCalculate,
    drawingToolOptions,
    markerOptions,
    circleOptions,
    polylineOptions,
    polygonOptions,
    rectangleOptions
  } = props;
  var {
    map
  } = useMapContext();
  var [drawingManager, setDrawingManager] = useState();
  var libSDK = window.BMapLib;
  var [bMapLib, setBMapLib] = useState(libSDK);
  var [loadMapLib, setLoadBMapLib] = useState(false || !!libSDK);
  var opts = {
    isOpen,
    drawingMode,
    enableDrawingTool,
    enableCalculate,
    drawingToolOptions,
    markerOptions,
    circleOptions,
    polylineOptions,
    polygonOptions,
    rectangleOptions
  };
  useMemo(() => {
    // 如果第一次加载，会执行下面的
    if (map && bMapLib && !drawingManager) {
      if (bMapLib.DrawingManager) {
        var instance = new BMapLib.DrawingManager(map, opts);
        setDrawingManager(instance);
      }
    }

    // 如果 bMapLib 已经加载过，会执行下面的
    if (map && bMapLib && !bMapLib.DrawingManager) {
      requireCss('//api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css').then(() => {});
      requireScript('//api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js').then(() => {
        if (window.BMapLib) {
          var newMapLib = Object.assign(window.BMapLib, bMapLib);
          setBMapLib(newMapLib);
          var _instance = new BMapLib.DrawingManager(map, opts);
          setDrawingManager(_instance);
        }
      }).catch(() => {});
    }

    // 如果第一次加载，会执行下面的
    if (!bMapLib && !loadMapLib) {
      setLoadBMapLib(true);
      requireCss('//api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.css').then(() => {});
      requireScript('//api.map.baidu.com/library/DrawingManager/1.4/src/DrawingManager_min.js').then(() => {
        if (window.BMapLib) {
          setBMapLib(window.BMapLib);
        }
      }).catch(() => {});
    }
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [map, loadMapLib, bMapLib, drawingManager]);
  useEventProperties(drawingManager, props, ['CircleComplete', 'MarkerComplete', 'OverlayComplete', 'PolygonComplete', 'PolylineComplete', 'RectangleComplete']);
  return {
    drawingManager,
    setDrawingManager,
    BMapLib: bMapLib
  };
}