"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = exports.Image = void 0;

var _classnames = _interopRequireDefault(require("classnames"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _react = _interopRequireWildcard(require("react"));

require("./index.less");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _extends() { _extends = Object.assign ? Object.assign.bind() : function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }

var __extends = void 0 && (void 0).__extends || function () {
  var _extendStatics = function extendStatics(d, b) {
    _extendStatics = Object.setPrototypeOf || {
      __proto__: []
    } instanceof Array && function (d, b) {
      d.__proto__ = b;
    } || function (d, b) {
      for (var p in b) {
        if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p];
      }
    };

    return _extendStatics(d, b);
  };

  return function (d, b) {
    if (typeof b !== "function" && b !== null) throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");

    _extendStatics(d, b);

    function __() {
      this.constructor = d;
    }

    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  };
}();

var __assign = void 0 && (void 0).__assign || function () {
  __assign = Object.assign || function (t) {
    for (var s, i = 1, n = arguments.length; i < n; i++) {
      s = arguments[i];

      for (var p in s) {
        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
      }
    }

    return t;
  };

  return __assign.apply(this, arguments);
};

var __rest = void 0 && (void 0).__rest || function (s, e) {
  var t = {};

  for (var p in s) {
    if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
  }

  if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
    if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];
  }
  return t;
};

var Image =
/** @class */
function (_super) {
  __extends(Image, _super);

  function Image() {
    var _this = _super !== null && _super.apply(this, arguments) || this;

    _this.state = {
      show: false
    };
    _this.imageRef = /*#__PURE__*/_react["default"].createRef();
    _this.intersectionObserver = null;
    return _this;
  }

  Image.prototype.componentDidMount = function () {
    var _this = this;

    this.intersectionObserver = new IntersectionObserver(function (entries) {
      if (entries[0].isIntersecting) {
        _this.setState({
          show: true
        });
      }
    }, {
      root: this.props.rootContainer(),
      // threshold: 0.8,
      rootMargin: '0px 0px 100px 0px'
    });
    this.intersectionObserver.observe(this.imageRef.current);
  };

  Image.prototype.componentWillUnmount = function () {
    this.intersectionObserver.disconnect(this.imageRef.current);
  };

  Image.prototype.render = function () {
    var _a = this.props,
        root = _a.root,
        lazy = _a.lazy,
        src = _a.src,
        style = _a.style,
        className = _a.className,
        rest = __rest(_a, ["root", "lazy", "src", "style", "className"]);

    var show = this.state.show;
    var isShow = lazy ? show : true;
    return /*#__PURE__*/_react["default"].createElement("img", _extends({
      ref: this.imageRef,
      alt: "",
      className: (0, _classnames["default"])('new-img-container', className),
      src: isShow ? src : '',
      style: __assign({
        opacity: ~~isShow
      }, style)
    }, rest));
  };

  return Image;
}(_react.Component);

exports.Image = Image;
Image.propTypes = {
  /** 外层容器 */
  rootContainer: _propTypes["default"].func,

  /** src */
  src: _propTypes["default"].string,

  /** 懒加载 */
  lazy: _propTypes["default"].bool,

  /** style */
  style: _propTypes["default"].object
};
Image.defaultProps = {
  rootContainer: function rootContainer() {
    return null;
  },
  lazy: true,
  src: '',
  style: {}
};
var _default = Image;
exports["default"] = _default;