106 lines
4.1 KiB
JavaScript
106 lines
4.1 KiB
JavaScript
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"use strict";
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"use client";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
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var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard").default;
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var React = _interopRequireWildcard(require("react"));
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var _VerticalAlignTopOutlined = _interopRequireDefault(require("@ant-design/icons/VerticalAlignTopOutlined"));
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var _classnames = _interopRequireDefault(require("classnames"));
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var _rcMotion = _interopRequireDefault(require("rc-motion"));
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var _omit = _interopRequireDefault(require("rc-util/lib/omit"));
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var _getScroll = _interopRequireDefault(require("../_util/getScroll"));
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var _reactNode = require("../_util/reactNode");
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var _scrollTo = _interopRequireDefault(require("../_util/scrollTo"));
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var _throttleByAnimationFrame = _interopRequireDefault(require("../_util/throttleByAnimationFrame"));
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var _warning = require("../_util/warning");
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var _configProvider = require("../config-provider");
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var _style = _interopRequireDefault(require("./style"));
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const BackTop = props => {
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const {
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prefixCls: customizePrefixCls,
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className,
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rootClassName,
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visibilityHeight = 400,
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target,
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onClick,
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duration = 450
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} = props;
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const [visible, setVisible] = React.useState(visibilityHeight === 0);
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const ref = React.useRef(null);
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const getDefaultTarget = () => {
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var _a;
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return ((_a = ref.current) === null || _a === void 0 ? void 0 : _a.ownerDocument) || window;
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};
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const handleScroll = (0, _throttleByAnimationFrame.default)(e => {
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const scrollTop = (0, _getScroll.default)(e.target);
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setVisible(scrollTop >= visibilityHeight);
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});
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if (process.env.NODE_ENV !== 'production') {
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const warning = (0, _warning.devUseWarning)('BackTop');
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warning.deprecated(false, 'BackTop', 'FloatButton.BackTop');
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}
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React.useEffect(() => {
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const getTarget = target || getDefaultTarget;
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const container = getTarget();
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handleScroll({
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target: container
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});
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container === null || container === void 0 ? void 0 : container.addEventListener('scroll', handleScroll);
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return () => {
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handleScroll.cancel();
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container === null || container === void 0 ? void 0 : container.removeEventListener('scroll', handleScroll);
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};
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}, [target]);
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const scrollToTop = e => {
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(0, _scrollTo.default)(0, {
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getContainer: target || getDefaultTarget,
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duration
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});
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onClick === null || onClick === void 0 ? void 0 : onClick(e);
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};
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const {
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getPrefixCls,
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direction
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} = React.useContext(_configProvider.ConfigContext);
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const prefixCls = getPrefixCls('back-top', customizePrefixCls);
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const rootPrefixCls = getPrefixCls();
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const [wrapCSSVar, hashId, cssVarCls] = (0, _style.default)(prefixCls);
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const classString = (0, _classnames.default)(hashId, cssVarCls, prefixCls, {
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[`${prefixCls}-rtl`]: direction === 'rtl'
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}, className, rootClassName);
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// fix https://fb.me/react-unknown-prop
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const divProps = (0, _omit.default)(props, ['prefixCls', 'className', 'rootClassName', 'children', 'visibilityHeight', 'target']);
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const defaultElement = /*#__PURE__*/React.createElement("div", {
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className: `${prefixCls}-content`
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}, /*#__PURE__*/React.createElement("div", {
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className: `${prefixCls}-icon`
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}, /*#__PURE__*/React.createElement(_VerticalAlignTopOutlined.default, null)));
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return wrapCSSVar( /*#__PURE__*/React.createElement("div", Object.assign({}, divProps, {
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className: classString,
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onClick: scrollToTop,
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ref: ref
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}), /*#__PURE__*/React.createElement(_rcMotion.default, {
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visible: visible,
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motionName: `${rootPrefixCls}-fade`
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}, _ref => {
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let {
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className: motionClassName
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} = _ref;
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return (0, _reactNode.cloneElement)(props.children || defaultElement, _ref2 => {
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let {
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className: cloneCls
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} = _ref2;
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return {
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className: (0, _classnames.default)(motionClassName, cloneCls)
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};
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});
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})));
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};
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if (process.env.NODE_ENV !== 'production') {
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BackTop.displayName = 'BackTop';
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}
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var _default = exports.default = BackTop;
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