243 lines
9.1 KiB
JavaScript
243 lines
9.1 KiB
JavaScript
"use client";
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import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
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import * as React from 'react';
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import classNames from 'classnames';
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import useEvent from "rc-util/es/hooks/useEvent";
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import scrollIntoView from 'scroll-into-view-if-needed';
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import getScroll from '../_util/getScroll';
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import scrollTo from '../_util/scrollTo';
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import { devUseWarning } from '../_util/warning';
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import Affix from '../affix';
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import { ConfigContext, useComponentConfig } from '../config-provider/context';
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import useCSSVarCls from '../config-provider/hooks/useCSSVarCls';
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import AnchorLink from './AnchorLink';
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import AnchorContext from './context';
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import useStyle from './style';
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function getDefaultContainer() {
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return window;
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}
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function getOffsetTop(element, container) {
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if (!element.getClientRects().length) {
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return 0;
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}
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const rect = element.getBoundingClientRect();
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if (rect.width || rect.height) {
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if (container === window) {
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return rect.top - element.ownerDocument.documentElement.clientTop;
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}
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return rect.top - container.getBoundingClientRect().top;
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}
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return rect.top;
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}
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const sharpMatcherRegex = /#([\S ]+)$/;
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const Anchor = props => {
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var _a;
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const {
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rootClassName,
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prefixCls: customPrefixCls,
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className,
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style,
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offsetTop,
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affix = true,
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showInkInFixed = false,
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children,
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items,
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direction: anchorDirection = 'vertical',
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bounds,
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targetOffset,
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onClick,
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onChange,
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getContainer,
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getCurrentAnchor,
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replace
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} = props;
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// =================== Warning =====================
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if (process.env.NODE_ENV !== 'production') {
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const warning = devUseWarning('Anchor');
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warning.deprecated(!children, 'Anchor children', 'items');
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process.env.NODE_ENV !== "production" ? warning(!(anchorDirection === 'horizontal' && (items === null || items === void 0 ? void 0 : items.some(n => 'children' in n))), 'usage', '`Anchor items#children` is not supported when `Anchor` direction is horizontal.') : void 0;
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}
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const [links, setLinks] = React.useState([]);
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const [activeLink, setActiveLink] = React.useState(null);
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const activeLinkRef = React.useRef(activeLink);
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const wrapperRef = React.useRef(null);
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const spanLinkNode = React.useRef(null);
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const animating = React.useRef(false);
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const {
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direction,
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getPrefixCls,
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className: anchorClassName,
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style: anchorStyle
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} = useComponentConfig('anchor');
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const {
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getTargetContainer
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} = React.useContext(ConfigContext);
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const prefixCls = getPrefixCls('anchor', customPrefixCls);
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const rootCls = useCSSVarCls(prefixCls);
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const [wrapCSSVar, hashId, cssVarCls] = useStyle(prefixCls, rootCls);
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const getCurrentContainer = (_a = getContainer !== null && getContainer !== void 0 ? getContainer : getTargetContainer) !== null && _a !== void 0 ? _a : getDefaultContainer;
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const dependencyListItem = JSON.stringify(links);
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const registerLink = useEvent(link => {
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if (!links.includes(link)) {
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setLinks(prev => [].concat(_toConsumableArray(prev), [link]));
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}
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});
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const unregisterLink = useEvent(link => {
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if (links.includes(link)) {
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setLinks(prev => prev.filter(i => i !== link));
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}
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});
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const updateInk = () => {
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var _a;
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const linkNode = (_a = wrapperRef.current) === null || _a === void 0 ? void 0 : _a.querySelector(`.${prefixCls}-link-title-active`);
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if (linkNode && spanLinkNode.current) {
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const {
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style: inkStyle
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} = spanLinkNode.current;
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const horizontalAnchor = anchorDirection === 'horizontal';
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inkStyle.top = horizontalAnchor ? '' : `${linkNode.offsetTop + linkNode.clientHeight / 2}px`;
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inkStyle.height = horizontalAnchor ? '' : `${linkNode.clientHeight}px`;
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inkStyle.left = horizontalAnchor ? `${linkNode.offsetLeft}px` : '';
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inkStyle.width = horizontalAnchor ? `${linkNode.clientWidth}px` : '';
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if (horizontalAnchor) {
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scrollIntoView(linkNode, {
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scrollMode: 'if-needed',
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block: 'nearest'
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});
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}
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}
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};
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const getInternalCurrentAnchor = (_links, _offsetTop = 0, _bounds = 5) => {
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const linkSections = [];
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const container = getCurrentContainer();
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_links.forEach(link => {
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const sharpLinkMatch = sharpMatcherRegex.exec(link === null || link === void 0 ? void 0 : link.toString());
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if (!sharpLinkMatch) {
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return;
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}
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const target = document.getElementById(sharpLinkMatch[1]);
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if (target) {
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const top = getOffsetTop(target, container);
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if (top <= _offsetTop + _bounds) {
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linkSections.push({
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link,
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top
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});
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}
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}
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});
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if (linkSections.length) {
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const maxSection = linkSections.reduce((prev, curr) => curr.top > prev.top ? curr : prev);
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return maxSection.link;
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}
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return '';
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};
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const setCurrentActiveLink = useEvent(link => {
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// FIXME: Seems a bug since this compare is not equals
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// `activeLinkRef` is parsed value which will always trigger `onChange` event.
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if (activeLinkRef.current === link) {
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return;
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}
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// https://github.com/ant-design/ant-design/issues/30584
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const newLink = typeof getCurrentAnchor === 'function' ? getCurrentAnchor(link) : link;
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setActiveLink(newLink);
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activeLinkRef.current = newLink;
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// onChange should respect the original link (which may caused by
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// window scroll or user click), not the new link
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onChange === null || onChange === void 0 ? void 0 : onChange(link);
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});
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const handleScroll = React.useCallback(() => {
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if (animating.current) {
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return;
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}
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const currentActiveLink = getInternalCurrentAnchor(links, targetOffset !== undefined ? targetOffset : offsetTop || 0, bounds);
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setCurrentActiveLink(currentActiveLink);
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}, [links, targetOffset, offsetTop, bounds]);
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const handleScrollTo = React.useCallback(link => {
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setCurrentActiveLink(link);
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const sharpLinkMatch = sharpMatcherRegex.exec(link);
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if (!sharpLinkMatch) {
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return;
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}
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const targetElement = document.getElementById(sharpLinkMatch[1]);
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if (!targetElement) {
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return;
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}
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const container = getCurrentContainer();
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const scrollTop = getScroll(container);
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const eleOffsetTop = getOffsetTop(targetElement, container);
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let y = scrollTop + eleOffsetTop;
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y -= targetOffset !== undefined ? targetOffset : offsetTop || 0;
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animating.current = true;
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scrollTo(y, {
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getContainer: getCurrentContainer,
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callback() {
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animating.current = false;
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}
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});
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}, [targetOffset, offsetTop]);
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const wrapperClass = classNames(hashId, cssVarCls, rootCls, rootClassName, `${prefixCls}-wrapper`, {
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[`${prefixCls}-wrapper-horizontal`]: anchorDirection === 'horizontal',
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[`${prefixCls}-rtl`]: direction === 'rtl'
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}, className, anchorClassName);
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const anchorClass = classNames(prefixCls, {
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[`${prefixCls}-fixed`]: !affix && !showInkInFixed
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});
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const inkClass = classNames(`${prefixCls}-ink`, {
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[`${prefixCls}-ink-visible`]: activeLink
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});
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const wrapperStyle = Object.assign(Object.assign({
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maxHeight: offsetTop ? `calc(100vh - ${offsetTop}px)` : '100vh'
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}, anchorStyle), style);
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const createNestedLink = options => Array.isArray(options) ? options.map(item => (/*#__PURE__*/React.createElement(AnchorLink, Object.assign({
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replace: replace
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}, item, {
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key: item.key
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}), anchorDirection === 'vertical' && createNestedLink(item.children)))) : null;
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const anchorContent = /*#__PURE__*/React.createElement("div", {
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ref: wrapperRef,
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className: wrapperClass,
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style: wrapperStyle
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}, /*#__PURE__*/React.createElement("div", {
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className: anchorClass
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}, /*#__PURE__*/React.createElement("span", {
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className: inkClass,
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ref: spanLinkNode
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}), 'items' in props ? createNestedLink(items) : children));
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React.useEffect(() => {
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const scrollContainer = getCurrentContainer();
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handleScroll();
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scrollContainer === null || scrollContainer === void 0 ? void 0 : scrollContainer.addEventListener('scroll', handleScroll);
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return () => {
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scrollContainer === null || scrollContainer === void 0 ? void 0 : scrollContainer.removeEventListener('scroll', handleScroll);
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};
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}, [dependencyListItem]);
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React.useEffect(() => {
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if (typeof getCurrentAnchor === 'function') {
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setCurrentActiveLink(getCurrentAnchor(activeLinkRef.current || ''));
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}
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}, [getCurrentAnchor]);
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React.useEffect(() => {
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updateInk();
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}, [anchorDirection, getCurrentAnchor, dependencyListItem, activeLink]);
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const memoizedContextValue = React.useMemo(() => ({
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registerLink,
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unregisterLink,
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scrollTo: handleScrollTo,
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activeLink,
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onClick,
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direction: anchorDirection
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}), [activeLink, onClick, handleScrollTo, anchorDirection]);
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const affixProps = affix && typeof affix === 'object' ? affix : undefined;
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return wrapCSSVar(/*#__PURE__*/React.createElement(AnchorContext.Provider, {
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value: memoizedContextValue
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}, affix ? (/*#__PURE__*/React.createElement(Affix, Object.assign({
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offsetTop: offsetTop,
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target: getCurrentContainer
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}, affixProps), anchorContent)) : anchorContent));
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};
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if (process.env.NODE_ENV !== 'production') {
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Anchor.displayName = 'Anchor';
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}
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export default Anchor; |