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video-gen-admin/node_modules/antd/lib/float-button/BackTop.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 _motion = _interopRequireDefault(require("@rc-component/motion"));
+var _ref = require("@rc-component/util/lib/ref");
+var _clsx = require("clsx");
+var _getScroll = _interopRequireDefault(require("../_util/getScroll"));
+var _scrollTo = _interopRequireDefault(require("../_util/scrollTo"));
+var _throttleByAnimationFrame = _interopRequireDefault(require("../_util/throttleByAnimationFrame"));
+var _configProvider = require("../config-provider");
+var _context = require("../config-provider/context");
+var _context2 = require("./context");
+var _FloatButton = _interopRequireWildcard(require("./FloatButton"));
+const defaultIcon = /*#__PURE__*/_react.default.createElement(_VerticalAlignTopOutlined.default, null);
+const BackTop = /*#__PURE__*/_react.default.forwardRef((props, ref) => {
+  const {
+    backTopIcon: contextIcon
+  } = (0, _context.useComponentConfig)('floatButton');
+  const {
+    prefixCls: customizePrefixCls,
+    className,
+    type = 'default',
+    shape = 'circle',
+    visibilityHeight = 400,
+    icon,
+    target,
+    onClick,
+    duration = 450,
+    ...restProps
+  } = props;
+  const mergedIcon = icon ?? contextIcon ?? defaultIcon;
+  const [visible, setVisible] = (0, _react.useState)(visibilityHeight === 0);
+  const internalRef = _react.default.useRef(null);
+  _react.default.useImperativeHandle(ref, () => ({
+    nativeElement: internalRef.current
+  }));
+  const getDefaultTarget = () => internalRef.current?.ownerDocument || window;
+  const handleScroll = (0, _throttleByAnimationFrame.default)(e => {
+    const scrollTop = (0, _getScroll.default)(e.target);
+    setVisible(scrollTop >= visibilityHeight);
+  });
+  (0, _react.useEffect)(() => {
+    const getTarget = target || getDefaultTarget;
+    const container = getTarget();
+    handleScroll({
+      target: container
+    });
+    container?.addEventListener('scroll', handleScroll);
+    return () => {
+      handleScroll.cancel();
+      container?.removeEventListener('scroll', handleScroll);
+    };
+  }, [target]);
+  const scrollToTop = e => {
+    (0, _scrollTo.default)(0, {
+      getContainer: target || getDefaultTarget,
+      duration
+    });
+    onClick?.(e);
+  };
+  const {
+    getPrefixCls
+  } = (0, _react.useContext)(_configProvider.ConfigContext);
+  const prefixCls = getPrefixCls(_FloatButton.floatButtonPrefixCls, customizePrefixCls);
+  const rootPrefixCls = getPrefixCls();
+  const groupShape = (0, _react.useContext)(_context2.GroupContext)?.shape;
+  const mergedShape = groupShape || shape;
+  const contentProps = {
+    prefixCls,
+    icon: mergedIcon,
+    type,
+    shape: mergedShape,
+    ...restProps
+  };
+  return /*#__PURE__*/_react.default.createElement(_motion.default, {
+    visible: visible,
+    motionName: `${rootPrefixCls}-fade`
+  }, ({
+    className: motionClassName
+  }, setRef) => (/*#__PURE__*/_react.default.createElement(_FloatButton.default, {
+    ref: (0, _ref.composeRef)(internalRef, setRef),
+    ...contentProps,
+    onClick: scrollToTop,
+    className: (0, _clsx.clsx)(className, motionClassName)
+  })));
+});
+if (process.env.NODE_ENV !== 'production') {
+  BackTop.displayName = 'FloatButton.BackTop';
+}
+var _default = exports.default = BackTop;