tntd
Version:
tntd是基于 TNT Design 设计体系的 React UI 组件库，主要用于研发企业级中后台产品。
196 lines (194 loc) • 6.59 kB
JavaScript
;
function _typeof(o) {
"@babel/helpers - typeof";
return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
return typeof o;
} : function (o) {
return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
}, _typeof(o);
}
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
var _react = _interopRequireWildcard(require("react"));
var _classnames = _interopRequireDefault(require("classnames"));
function _interopRequireDefault(e) {
return e && e.__esModule ? e : {
"default": e
};
}
function _getRequireWildcardCache(e) {
if ("function" != typeof WeakMap) return null;
var r = new WeakMap(),
t = new WeakMap();
return (_getRequireWildcardCache = function _getRequireWildcardCache(e) {
return e ? t : r;
})(e);
}
function _interopRequireWildcard(e, r) {
if (!r && e && e.__esModule) return e;
if (null === e || "object" != _typeof(e) && "function" != typeof e) return {
"default": e
};
var t = _getRequireWildcardCache(r);
if (t && t.has(e)) return t.get(e);
var n = {
__proto__: null
},
a = Object.defineProperty && Object.getOwnPropertyDescriptor;
for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) {
var i = a ? Object.getOwnPropertyDescriptor(e, u) : null;
i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u];
}
return n["default"] = e, t && t.set(e, n), n;
}
function _slicedToArray(r, e) {
return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest();
}
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _unsupportedIterableToArray(r, a) {
if (r) {
if ("string" == typeof r) return _arrayLikeToArray(r, a);
var t = {}.toString.call(r).slice(8, -1);
return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
}
}
function _arrayLikeToArray(r, a) {
(null == a || a > r.length) && (a = r.length);
for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];
return n;
}
function _iterableToArrayLimit(r, l) {
var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
if (null != t) {
var e,
n,
i,
u,
a = [],
f = !0,
o = !1;
try {
if (i = (t = t.call(r)).next, 0 === l) {
if (Object(t) !== t) return;
f = !1;
} else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
} catch (r) {
o = !0, n = r;
} finally {
try {
if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return;
} finally {
if (o) throw n;
}
}
return a;
}
}
function _arrayWithHoles(r) {
if (Array.isArray(r)) return r;
}
var __rest = void 0 && (void 0).__rest || function (s, e) {
var t = {};
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];
if (s != null && typeof Object.getOwnPropertySymbols === "function") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];
}
return t;
};
var _default = exports["default"] = function _default(props) {
var alt = props.alt,
title = props.title,
src = props.src,
width = props.width,
height = props.height,
_props$style = props.style,
style = _props$style === void 0 ? {} : _props$style,
className = props.className,
onError = props.onError,
shape = props.shape,
errorImgSrc = props.errorImgSrc,
type = props.type,
others = __rest(props, ["alt", "title", "src", "width", "height", "style", "className", "onError", "shape", "errorImgSrc", "type"]);
var imgRef = (0, _react.useRef)();
var _useState = (0, _react.useState)({
display: 'block',
maxWidth: 'none',
width: 'auto',
height: 'auto',
// transition: 'opacity 0.2s ease',
opacity: 0
}),
_useState2 = _slicedToArray(_useState, 2),
imgStyles = _useState2[0],
setImgStyles = _useState2[1];
var getStyles = function getStyles(wrapWidth, wrapHeight, imgWidth, imgHeight) {
// 进行等比运算
var wrapRatio = wrapWidth / wrapHeight;
var imgRatio = imgWidth / imgHeight;
var finalWidth = 0;
var finalHeight = 0;
var finalMarginTop = 0;
var finalMarginLeft = 0;
if (wrapRatio > imgRatio) {
// 父框宽度更大，以父框的宽度为准，拉伸图片上移
finalWidth = wrapWidth;
finalHeight = finalWidth / imgRatio;
finalMarginTop = (finalHeight - wrapHeight) / 2 * -1;
} else {
// 父框高度更大，以父框高度为准，拉伸图片左移动
finalHeight = wrapHeight;
finalWidth = finalHeight * imgRatio;
finalMarginLeft = (finalWidth - wrapWidth) / 2 * -1;
}
return {
height: finalHeight,
width: finalWidth,
marginLeft: finalMarginLeft,
marginTop: finalMarginTop
};
};
var imgOnload = function imgOnload() {
var imgDOM = imgRef.current;
var width = props.width,
height = props.height;
var imgWidth = imgDOM.width;
var imgHeight = imgDOM.height;
var imgStyles2 = getStyles(width, height, imgWidth, imgHeight);
setImgStyles(Object.assign(Object.assign(Object.assign({}, imgStyles), imgStyles2), {
opacity: 1
}));
};
(0, _react.useEffect)(function () {
if (width || height) {
imgOnload();
}
}, [width, height]);
var styles = Object.assign(Object.assign({}, style), {
display: 'inline-block',
overflow: 'hidden',
width: width,
height: height
});
if (shape === 'rounded') {
styles.borderRadius = '5px';
} else if (shape === 'circle') {
styles.borderRadius = '50%';
}
var cls = (0, _classnames["default"])('tntd-img', shape, className);
return _react["default"].createElement("div", Object.assign({
className: cls,
style: styles
}, others), _react["default"].createElement("img", {
style: imgStyles,
onError: onError,
ref: imgRef,
src: src,
alt: alt,
title: title,
onLoad: imgOnload
}));
};