@arco-design/web-react
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Arco Design React UI Library.
300 lines (299 loc) • 14.2 kB
JavaScript
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Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = __importStar(require("react"));
var throttle_1 = __importDefault(require("lodash/throttle"));
var compute_scroll_into_view_1 = __importDefault(require("compute-scroll-into-view"));
var scroll_into_view_if_needed_1 = __importDefault(require("scroll-into-view-if-needed"));
var is_1 = require("../_util/is");
var dom_1 = require("../_util/dom");
var classNames_1 = __importDefault(require("../_util/classNames"));
var useIsFirstRender_1 = __importDefault(require("../_util/hooks/useIsFirstRender"));
var Affix_1 = __importDefault(require("../Affix"));
var ConfigProvider_1 = require("../ConfigProvider");
var context_1 = __importDefault(require("./context"));
var utils_1 = require("./utils");
var useStateWithPromise_1 = __importDefault(require("../_util/hooks/useStateWithPromise"));
var link_1 = __importDefault(require("./link"));
var useMergeProps_1 = __importDefault(require("../_util/hooks/useMergeProps"));
var defaultProps = {
animation: true,
affix: true,
hash: true,
boundary: 'start',
};
function Anchor(baseProps, ref) {
var _a;
var _b = (0, react_1.useContext)(ConfigProvider_1.ConfigContext), getPrefixCls = _b.getPrefixCls, componentConfig = _b.componentConfig, rtl = _b.rtl;
var props = (0, useMergeProps_1.default)(baseProps, defaultProps, componentConfig === null || componentConfig === void 0 ? void 0 : componentConfig.Anchor);
var className = props.className, style = props.style, propScrollContainer = props.scrollContainer, _c = props.animation, animation = _c === void 0 ? true : _c, lineless = props.lineless, _d = props.affix, affix = _d === void 0 ? true : _d, affixStyle = props.affixStyle, offsetBottom = props.offsetBottom, offsetTop = props.offsetTop, _e = props.hash, willChangeHash = _e === void 0 ? true : _e, _f = props.boundary, boundary = _f === void 0 ? 'start' : _f, targetOffset = props.targetOffset, children = props.children, _g = props.direction, direction = _g === void 0 ? 'vertical' : _g, onSelect = props.onSelect, onChange = props.onChange, rest = __rest(props, ["className", "style", "scrollContainer", "animation", "lineless", "affix", "affixStyle", "offsetBottom", "offsetTop", "hash", "boundary", "targetOffset", "children", "direction", "onSelect", "onChange"]);
var prefixCls = getPrefixCls('anchor');
var classNames = (0, classNames_1.default)(prefixCls, className, (_a = {},
_a[prefixCls + "-lineless"] = lineless,
_a[prefixCls + "-rtl"] = rtl,
_a[prefixCls + "-horizontal"] = direction === 'horizontal',
_a));
var wrapperRef = (0, react_1.useRef)(null);
var sliderLineRef = (0, react_1.useRef)(null);
var linkMap = (0, react_1.useRef)(new Map());
var isScrolling = (0, react_1.useRef)(false);
var scrollContainer = (0, react_1.useRef)(null);
// use this flag to trigger re-computing position of active link slider line
var _h = __read((0, react_1.useState)(0), 2), flagUpdateSliderLine = _h[0], setFlagUpdateSliderLine = _h[1];
var _j = __read((0, useStateWithPromise_1.default)(''), 2), currentLink = _j[0], setCurrentLink = _j[1];
var isFirstRender = (0, useIsFirstRender_1.default)();
(0, react_1.useEffect)(function () {
var container = (0, utils_1.getContainer)(propScrollContainer);
scrollContainer.current = container;
}, [propScrollContainer]);
var getAffixTarget = (0, react_1.useCallback)(function () {
return (0, utils_1.getContainer)(propScrollContainer);
}, [propScrollContainer]);
(0, react_1.useImperativeHandle)(ref, function () { return ({
dom: wrapperRef.current,
getRootDOMNode: function () { return wrapperRef.current; },
}); }, []);
function addLink(hash, element) {
if (hash) {
linkMap.current.set(hash, element);
setFlagUpdateSliderLine(Math.random());
}
}
function removeLink(hash) {
linkMap.current.delete(hash);
setFlagUpdateSliderLine(Math.random());
}
var setActiveLink = (0, react_1.useCallback)(function (hash) {
if (!hash || !wrapperRef.current)
return;
// Try to add when there is no corresponding link
if (!linkMap.current.has(hash)) {
var node_1 = (0, utils_1.findNode)(wrapperRef.current, "a[data-href='" + hash + "']");
node_1 && addLink(hash, node_1);
}
var node = linkMap.current.get(hash);
if (node && hash !== currentLink) {
(0, scroll_into_view_if_needed_1.default)(node, {
behavior: 'auto',
block: 'nearest',
scrollMode: 'if-needed',
boundary: wrapperRef.current,
});
setCurrentLink(hash).then(function () {
(0, is_1.isFunction)(onChange) && onChange(hash, currentLink);
});
}
}, [currentLink, onChange]);
var getEleInViewport = (0, react_1.useCallback)(function () {
var result;
var startTop = (0, is_1.isNumber)(boundary) ? boundary : 0;
var container = scrollContainer.current;
var containerElement = (0, utils_1.getContainerElement)(container);
var containerRect = containerElement.getBoundingClientRect();
var documentHeight = document.documentElement.clientHeight;
__spreadArray([], __read(linkMap.current.keys()), false).some(function (hash) {
var element = (0, utils_1.findNode)(document, hash);
var inView = false;
if (element) {
var _a = element.getBoundingClientRect(), top_1 = _a.top, height = _a.height;
if ((0, is_1.isWindow)(container)) {
var innerTargetOffset = targetOffset !== null && targetOffset !== void 0 ? targetOffset : documentHeight / 2;
inView =
(top_1 >= startTop && top_1 <= innerTargetOffset) ||
(top_1 <= startTop && top_1 + height >= innerTargetOffset);
}
else {
var offsetTop_1 = top_1 - containerRect.top - startTop;
var innerTargetOffset = targetOffset !== null && targetOffset !== void 0 ? targetOffset : containerRect.height / 2;
inView =
(offsetTop_1 >= 0 && offsetTop_1 <= innerTargetOffset) ||
(offsetTop_1 <= 0 && offsetTop_1 + height >= innerTargetOffset);
}
if (inView) {
result = element;
}
}
return inView;
});
return result;
}, [boundary, targetOffset]);
var onScroll = (0, react_1.useCallback)((0, throttle_1.default)(function () {
if (isScrolling.current)
return;
var element = getEleInViewport();
if (element && element.id) {
var hash = "#" + element.id;
setActiveLink(hash);
}
}, 30, { trailing: true }), [getEleInViewport, setActiveLink]);
function scrollIntoView(hash) {
if (!hash)
return;
try {
var element = (0, utils_1.findNode)(document, hash);
if (!element)
return;
var block = (0, is_1.isNumber)(boundary) ? 'start' : boundary;
var offset_1 = (0, is_1.isNumber)(boundary) ? boundary : 0;
var actions = (0, compute_scroll_into_view_1.default)(element, { block: block });
if (!actions.length)
return;
var stopScroll_1 = false;
var promises = actions.map(function (_a) {
var el = _a.el, top = _a.top;
return new Promise(function (resolve) {
if (!stopScroll_1) {
if (el === scrollContainer.current) {
stopScroll_1 = true;
}
var targetTop = top - offset_1;
if (!animation) {
// Manually trigger scrolling as browser's default action is prevented when `props.hash` is false
if (!willChangeHash) {
el.scrollTop = targetTop;
}
return resolve(null);
}
return (0, utils_1.slide)(el, targetTop, resolve);
}
resolve(null);
});
});
isScrolling.current = true;
Promise.all(promises).then(function () {
isScrolling.current = false;
});
}
catch (e) {
console.error(e);
}
}
function onLinkClick(e, hash) {
if (!willChangeHash) {
e.preventDefault();
}
setActiveLink(hash);
scrollIntoView(hash);
(0, is_1.isFunction)(onSelect) && onSelect(hash, currentLink);
}
(0, react_1.useEffect)(function () {
var hash = decodeURIComponent(location.hash);
if (hash) {
setActiveLink(hash);
scrollIntoView(hash);
}
else {
// compute current active anchor
onScroll();
}
}, []);
(0, react_1.useEffect)(function () {
if (!isFirstRender) {
onScroll();
}
(0, dom_1.on)(scrollContainer.current, 'scroll', onScroll);
return function () {
(0, dom_1.off)(scrollContainer.current, 'scroll', onScroll);
};
}, [propScrollContainer, onScroll]);
(0, react_1.useEffect)(function () {
var link = linkMap.current.get(currentLink);
if (link && !lineless && sliderLineRef.current) {
if (direction === 'horizontal') {
// if (rtl) {
// sliderLineRef.current.style.right = `${link.offsetLeft}px`;
// } else {
// }
sliderLineRef.current.style.left = link.offsetLeft + "px";
sliderLineRef.current.style.width = link.clientWidth + "px";
}
else {
sliderLineRef.current.style.top = link.offsetTop + "px";
}
}
}, [currentLink, lineless, direction, rtl, flagUpdateSliderLine]);
var content = (react_1.default.createElement("div", __assign({ className: classNames, style: style, ref: wrapperRef }, rest),
!lineless && currentLink && (react_1.default.createElement("div", { className: prefixCls + "-line-slider", ref: sliderLineRef })),
react_1.default.createElement(context_1.default.Provider, { value: {
direction: direction,
currentLink: currentLink,
addLink: addLink,
removeLink: removeLink,
onLinkClick: onLinkClick,
} },
react_1.default.createElement("div", { className: prefixCls + "-list" }, children))));
return affix ? (react_1.default.createElement(Affix_1.default, { offsetTop: offsetTop, offsetBottom: offsetBottom, style: affixStyle, target: getAffixTarget }, content)) : (content);
}
var ForwardRefAnchor = (0, react_1.forwardRef)(Anchor);
var AnchorComponent = ForwardRefAnchor;
AnchorComponent.displayName = 'Anchor';
AnchorComponent.Link = link_1.default;
exports.default = AnchorComponent;