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。
217 lines (215 loc) • 8.36 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"] = exports.Watermark = void 0;
var _classnames = _interopRequireDefault(require("classnames"));
var _react = _interopRequireWildcard(require("react"));
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 _interopRequireDefault(e) {
return e && e.__esModule ? e : {
"default": e
};
}
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$/.test(t) ? _arrayLikeToArray(r, a) : void 0;
}
}
function _arrayLikeToArray(r, a) {
(null == a || a > r.length) && (a = r.length);
for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e];
return n;
}
function _iterableToArrayLimit(r, l) {
var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"];
if (null != t) {
var e,
n,
i,
u,
a = [],
f = !0,
o = !1;
try {
if (i = (t = t.call(r)).next, 0 === l) {
if (Object(t) !== t) return;
f = !1;
} else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);
} catch (r) {
o = !0, n = r;
} finally {
try {
if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return;
} finally {
if (o) throw n;
}
}
return a;
}
}
function _arrayWithHoles(r) {
if (Array.isArray(r)) return r;
}
/**
* 返回当前显示设备的物理像素分辨率与CSS像素分辨率之比
*
* @param context
* @see api 有些废弃了，其实类型 CanvasRenderingContext2D
*/
var getPixelRatio = function getPixelRatio(context) {
if (!context) {
return 1;
}
var backingStore = context.backingStorePixelRatio || context.webkitBackingStorePixelRatio || context.mozBackingStorePixelRatio || context.msBackingStorePixelRatio || context.oBackingStorePixelRatio || 1;
return (window.devicePixelRatio || 1) / backingStore;
};
var Watermark = exports.Watermark = function Watermark(props) {
var children = props.children,
style = props.style,
className = props.className,
markStyle = props.markStyle,
markClassName = props.markClassName,
_props$zIndex = props.zIndex,
zIndex = _props$zIndex === void 0 ? 9 : _props$zIndex,
_props$gapX = props.gapX,
gapX = _props$gapX === void 0 ? 212 : _props$gapX,
_props$gapY = props.gapY,
gapY = _props$gapY === void 0 ? 222 : _props$gapY,
_props$width = props.width,
width = _props$width === void 0 ? 120 : _props$width,
_props$height = props.height,
height = _props$height === void 0 ? 64 : _props$height,
_props$rotate = props.rotate,
rotate = _props$rotate === void 0 ? -22 : _props$rotate,
image = props.image,
content = props.content,
offsetLeft = props.offsetLeft,
offsetTop = props.offsetTop,
_props$fontStyle = props.fontStyle,
fontStyle = _props$fontStyle === void 0 ? 'normal' : _props$fontStyle,
_props$textAlign = props.textAlign,
textAlign = _props$textAlign === void 0 ? 'center' : _props$textAlign,
_props$fontWeight = props.fontWeight,
fontWeight = _props$fontWeight === void 0 ? 'normal' : _props$fontWeight,
_props$fontColor = props.fontColor,
fontColor = _props$fontColor === void 0 ? 'rgba(0,0,0,.15)' : _props$fontColor,
_props$fontSize = props.fontSize,
fontSize = _props$fontSize === void 0 ? 14 : _props$fontSize,
_props$fontFamily = props.fontFamily,
fontFamily = _props$fontFamily === void 0 ? 'sans-serif' : _props$fontFamily,
_props$prefixCls = props.prefixCls,
prefixCls = _props$prefixCls === void 0 ? 'tntd-watermark' : _props$prefixCls;
var wrapperCls = (0, _classnames["default"])(["".concat(prefixCls, "-wrapper"), className]);
var watermarkCls = (0, _classnames["default"])([prefixCls, markClassName]);
var _useState = (0, _react.useState)(''),
_useState2 = _slicedToArray(_useState, 2),
base64Url = _useState2[0],
setBase64Url = _useState2[1];
(0, _react.useEffect)(function () {
var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
var ratio = getPixelRatio(ctx);
var canvasWidth = "".concat((gapX + width) * ratio, "px");
var canvasHeight = "".concat((gapY + height) * ratio, "px");
var canvasOffsetLeft = offsetLeft || gapX / 2;
var canvasOffsetTop = offsetTop || gapY / 2;
canvas.setAttribute('width', canvasWidth);
canvas.setAttribute('height', canvasHeight);
if (ctx) {
// 旋转字符 rotate
ctx.translate(canvasOffsetLeft * ratio, canvasOffsetTop * ratio);
ctx.rotate(Math.PI / 180 * Number(rotate));
var markWidth = width * ratio;
var markHeight = height * ratio;
if (image) {
var img = new Image();
img.crossOrigin = 'anonymous';
img.referrerPolicy = 'no-referrer';
img.src = image;
img.onload = function () {
ctx.drawImage(img, 0, 0, markWidth, markHeight);
setBase64Url(canvas.toDataURL());
};
} else if (content) {
var markSize = Number(fontSize) * ratio;
ctx.font = "".concat(fontStyle, " normal ").concat(fontWeight, " ").concat(markSize, "px/").concat(markHeight, "px ").concat(fontFamily);
ctx.fillStyle = fontColor;
ctx.textAlign = textAlign;
if (Array.isArray(content)) {
content === null || content === void 0 ? void 0 : content.forEach(function (item, index) {
return ctx.fillText(item, 0, index * markSize);
});
} else {
ctx.fillText(content, 0, 0);
}
setBase64Url(canvas.toDataURL());
}
} else {
// eslint-disable-next-line no-console
console.error('当前环境不支持Canvas');
}
}, [gapX, gapY, offsetLeft, offsetTop, rotate, fontStyle, textAlign, fontWeight, width, height, fontFamily, fontColor, image, content, fontSize]);
return _react["default"].createElement("div", {
style: Object.assign({
position: 'relative'
}, style),
className: wrapperCls
}, children, _react["default"].createElement("div", {
className: watermarkCls,
style: Object.assign(Object.assign({
zIndex: zIndex,
position: 'absolute',
left: 0,
top: 0,
width: '100%',
height: '100%',
backgroundSize: "".concat(gapX + width, "px"),
pointerEvents: 'none',
backgroundRepeat: 'repeat'
}, base64Url ? {
backgroundImage: "url('".concat(base64Url, "')")
} : {}), markStyle)
}));
};
var _default = exports["default"] = Watermark;