@pansy/react-mapbox-gl/lib/components/Layer/layer.js

🌍 基于 Mapbox GL 封装的 React 组件库

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/components/Layer/layer.tsx
var layer_exports = {};
__export(layer_exports, {
  Layer: () => Layer
});
module.exports = __toCommonJS(layer_exports);
var import_react = require("react");
var import_utils = require("./utils");
var import_useMap = require("../../hooks/useMap");
var import_isStyleLoaded = require("../../utils/isStyleLoaded");
var layerCounter = 0;
var Layer = (props) => {
  const { map } = (0, import_useMap.useMap)();
  const propsRef = (0, import_react.useRef)(props);
  const [, setStyleLoaded] = (0, import_react.useState)(0);
  const id = (0, import_react.useMemo)(() => props.id || `jsx-layer-${layerCounter++}`, []);
  (0, import_react.useEffect)(() => {
    if (map) {
      const forceUpdate = () => setStyleLoaded((version) => version + 1);
      map.on("styledata", forceUpdate);
      forceUpdate();
      return () => {
        map.off("styledata", forceUpdate);
        if ((0, import_isStyleLoaded.isStyleLoaded)(map) && map.getLayer(id)) {
          map.removeLayer(id);
        }
      };
    }
    return void 0;
  }, [map]);
  const layer = (0, import_isStyleLoaded.isStyleLoaded)(map) && map.getLayer(id);
  if (layer) {
    try {
      (0, import_utils.updateLayer)(map, id, props, propsRef.current);
    } catch (error) {
      console.warn(error);
    }
  } else {
    (0, import_utils.createLayer)(map, id, props);
  }
  propsRef.current = props;
  return null;
};