first commit

frontend/node_modules/antd/lib/back-top/index.js

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+"use strict";
+"use client";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var React = _interopRequireWildcard(require("react"));
+var _VerticalAlignTopOutlined = _interopRequireDefault(require("@ant-design/icons/VerticalAlignTopOutlined"));
+var _classnames = _interopRequireDefault(require("classnames"));
+var _rcMotion = _interopRequireDefault(require("rc-motion"));
+var _omit = _interopRequireDefault(require("rc-util/lib/omit"));
+var _getScroll = _interopRequireDefault(require("../_util/getScroll"));
+var _reactNode = require("../_util/reactNode");
+var _scrollTo = _interopRequireDefault(require("../_util/scrollTo"));
+var _throttleByAnimationFrame = _interopRequireDefault(require("../_util/throttleByAnimationFrame"));
+var _warning = require("../_util/warning");
+var _configProvider = require("../config-provider");
+var _style = _interopRequireDefault(require("./style"));
+const BackTop = props => {
+  const {
+    prefixCls: customizePrefixCls,
+    className,
+    rootClassName,
+    visibilityHeight = 400,
+    target,
+    onClick,
+    duration = 450
+  } = props;
+  const [visible, setVisible] = React.useState(visibilityHeight === 0);
+  const ref = React.useRef(null);
+  const getDefaultTarget = () => {
+    var _a;
+    return ((_a = ref.current) === null || _a === void 0 ? void 0 : _a.ownerDocument) || window;
+  };
+  const handleScroll = (0, _throttleByAnimationFrame.default)(e => {
+    const scrollTop = (0, _getScroll.default)(e.target);
+    setVisible(scrollTop >= visibilityHeight);
+  });
+  if (process.env.NODE_ENV !== 'production') {
+    const warning = (0, _warning.devUseWarning)('BackTop');
+    warning.deprecated(false, 'BackTop', 'FloatButton.BackTop');
+  }
+  React.useEffect(() => {
+    const getTarget = target || getDefaultTarget;
+    const container = getTarget();
+    handleScroll({
+      target: container
+    });
+    container === null || container === void 0 ? void 0 : container.addEventListener('scroll', handleScroll);
+    return () => {
+      handleScroll.cancel();
+      container === null || container === void 0 ? void 0 : container.removeEventListener('scroll', handleScroll);
+    };
+  }, [target]);
+  const scrollToTop = e => {
+    (0, _scrollTo.default)(0, {
+      getContainer: target || getDefaultTarget,
+      duration
+    });
+    onClick === null || onClick === void 0 ? void 0 : onClick(e);
+  };
+  const {
+    getPrefixCls,
+    direction
+  } = React.useContext(_configProvider.ConfigContext);
+  const prefixCls = getPrefixCls('back-top', customizePrefixCls);
+  const rootPrefixCls = getPrefixCls();
+  const [wrapCSSVar, hashId, cssVarCls] = (0, _style.default)(prefixCls);
+  const classString = (0, _classnames.default)(hashId, cssVarCls, prefixCls, {
+    [`${prefixCls}-rtl`]: direction === 'rtl'
+  }, className, rootClassName);
+  // fix https://fb.me/react-unknown-prop
+  const divProps = (0, _omit.default)(props, ['prefixCls', 'className', 'rootClassName', 'children', 'visibilityHeight', 'target']);
+  const defaultElement = /*#__PURE__*/React.createElement("div", {
+    className: `${prefixCls}-content`
+  }, /*#__PURE__*/React.createElement("div", {
+    className: `${prefixCls}-icon`
+  }, /*#__PURE__*/React.createElement(_VerticalAlignTopOutlined.default, null)));
+  return wrapCSSVar(/*#__PURE__*/React.createElement("div", Object.assign({}, divProps, {
+    className: classString,
+    onClick: scrollToTop,
+    ref: ref
+  }), /*#__PURE__*/React.createElement(_rcMotion.default, {
+    visible: visible,
+    motionName: `${rootPrefixCls}-fade`
+  }, ({
+    className: motionClassName
+  }) => (0, _reactNode.cloneElement)(props.children || defaultElement, ({
+    className: cloneCls
+  }) => ({
+    className: (0, _classnames.default)(motionClassName, cloneCls)
+  })))));
+};
+if (process.env.NODE_ENV !== 'production') {
+  BackTop.displayName = 'BackTop';
+}
+var _default = exports.default = BackTop;