@aimake/nanod/lib/avatar/index.js

## 设计模式 NANO DESIGN 是面向于企业级中台化应用的解决方案。服务于 ToB 和 ToE 类型的单页应用，应用于各产品中从而产出了一套设计及前端规范。

"use strict";

var _typeof3 = require("babel-runtime/helpers/typeof");

var _typeof4 = _interopRequireDefault2(_typeof3);

function _interopRequireDefault2(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

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

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

var ReactDOM = _interopRequireWildcard(require("react-dom"));

var _icon = _interopRequireDefault(require("../icon"));

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

var _configProvider = require("../config-provider");

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

function _interopRequireWildcard(obj) {
  if (obj && obj.__esModule) {
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  } else {
    var newObj = {};if (obj != null) {
      for (var key in obj) {
        if (Object.prototype.hasOwnProperty.call(obj, key)) {
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            Object.defineProperty(newObj, key, desc);
          } else {
            newObj[key] = obj[key];
          }
        }
      }
    }newObj["default"] = obj;return newObj;
  }
}

function _typeof(obj) {
  if (typeof Symbol === "function" && (0, _typeof4["default"])(Symbol.iterator) === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj === "undefined" ? "undefined" : (0, _typeof4["default"])(obj);
    };
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    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : (0, _typeof4["default"])(obj);
    };
  }return _typeof(obj);
}

function _extends() {
  _extends = Object.assign || 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);
}

function _defineProperty(obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true });
  } else {
    obj[key] = value;
  }return obj;
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if ("value" in descriptor) descriptor.writable = true;Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);if (staticProps) _defineProperties(Constructor, staticProps);return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }return _assertThisInitialized(self);
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } });if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;return o;
  };return _setPrototypeOf(o, p);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }return self;
}

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) t[p[i]] = s[p[i]];
  }
  return t;
};

var Avatar =
/*#__PURE__*/
function (_React$Component) {
  _inherits(Avatar, _React$Component);

  function Avatar() {
    var _this;

    _classCallCheck(this, Avatar);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(Avatar).apply(this, arguments));
    _this.state = {
      scale: 1,
      isImgExist: true
    };

    _this.setScale = function () {
      var childrenNode = _this.avatarChildren;

      if (childrenNode) {
        var childrenWidth = childrenNode.offsetWidth;
        var avatarNode = ReactDOM.findDOMNode(_assertThisInitialized(_assertThisInitialized(_this)));
        var avatarWidth = avatarNode.getBoundingClientRect().width; // add 4px gap for each side to get better performance

        if (avatarWidth - 8 < childrenWidth) {
          _this.setState({
            scale: (avatarWidth - 8) / childrenWidth
          });
        } else {
          _this.setState({
            scale: 1
          });
        }
      }
    };

    _this.handleImgLoadError = function () {
      var onError = _this.props.onError;
      var errorFlag = onError ? onError() : undefined;

      if (errorFlag !== false) {
        _this.setState({
          isImgExist: false
        });
      }
    };

    _this.renderAvatar = function (_ref) {
      var _classNames, _classNames2;

      var getPrefixCls = _ref.getPrefixCls;

      var _a = _this.props,
          customizePrefixCls = _a.prefixCls,
          shape = _a.shape,
          size = _a.size,
          src = _a.src,
          srcSet = _a.srcSet,
          icon = _a.icon,
          className = _a.className,
          alt = _a.alt,
          others = __rest(_a, ["prefixCls", "shape", "size", "src", "srcSet", "icon", "className", "alt"]);

      var _this$state = _this.state,
          isImgExist = _this$state.isImgExist,
          scale = _this$state.scale;
      var prefixCls = getPrefixCls('avatar', customizePrefixCls);
      var sizeCls = (0, _classnames["default"])((_classNames = {}, _defineProperty(_classNames, "".concat(prefixCls, "-lg"), size === 'large'), _defineProperty(_classNames, "".concat(prefixCls, "-sm"), size === 'small'), _classNames));
      var classString = (0, _classnames["default"])(prefixCls, className, sizeCls, (_classNames2 = {}, _defineProperty(_classNames2, "".concat(prefixCls, "-").concat(shape), shape), _defineProperty(_classNames2, "".concat(prefixCls, "-image"), src && isImgExist), _defineProperty(_classNames2, "".concat(prefixCls, "-icon"), icon), _classNames2));
      var sizeStyle = typeof size === 'number' ? {
        width: size,
        height: size,
        lineHeight: "".concat(size, "px"),
        fontSize: icon ? size / 2 : 18
      } : {};
      var children = _this.props.children;

      if (src && isImgExist) {
        children = React.createElement("img", {
          src: src,
          srcSet: srcSet,
          onError: _this.handleImgLoadError,
          alt: alt
        });
      } else if (icon) {
        children = React.createElement(_icon["default"], {
          type: icon
        });
      } else {
        var childrenNode = _this.avatarChildren;

        if (childrenNode || scale !== 1) {
          var transformString = "scale(".concat(scale, ") translateX(-50%)");
          var childrenStyle = {
            msTransform: transformString,
            WebkitTransform: transformString,
            transform: transformString
          };
          var sizeChildrenStyle = typeof size === 'number' ? {
            lineHeight: "".concat(size, "px")
          } : {};
          children = React.createElement("span", {
            className: "".concat(prefixCls, "-string"),
            ref: function ref(span) {
              return _this.avatarChildren = span;
            },
            style: _extends({}, sizeChildrenStyle, childrenStyle)
          }, children);
        } else {
          children = React.createElement("span", {
            className: "".concat(prefixCls, "-string"),
            ref: function ref(span) {
              return _this.avatarChildren = span;
            }
          }, children);
        }
      }

      return React.createElement("span", _extends({}, others, {
        style: _extends({}, sizeStyle, others.style),
        className: classString
      }), children);
    };

    return _this;
  }

  _createClass(Avatar, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this.setScale();
    }
  }, {
    key: "componentDidUpdate",
    value: function componentDidUpdate(prevProps, prevState) {
      if (prevProps.children !== this.props.children || prevState.scale !== this.state.scale && this.state.scale === 1 || prevState.isImgExist !== this.state.isImgExist) {
        this.setScale();
      }
    }
  }, {
    key: "render",
    value: function render() {
      return React.createElement(_configProvider.ConfigConsumer, null, this.renderAvatar);
    }
  }]);

  return Avatar;
}(React.Component);

exports["default"] = Avatar;
Avatar.defaultProps = {
  shape: 'circle',
  size: 'default'
};