@douyinfe/semi-ui
Version:
A modern, comprehensive, flexible design system and UI library. Connect DesignOps & DevOps. Quickly build beautiful React apps. Maintained by Douyin-fe team.
77 lines (76 loc) • 3.74 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _react = _interopRequireWildcard(require("react"));
var _semiIcons = require("@douyinfe/semi-icons");
var _constants = require("@douyinfe/semi-foundation/lib/cjs/aiChatInput/constants");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
const HorizontalScroller = _ref => {
let {
children,
prefix
} = _ref;
const scrollContainerRef = (0, _react.useRef)(null);
const [canScrollLeft, setCanScrollLeft] = (0, _react.useState)(false);
const [canScrollRight, setCanScrollRight] = (0, _react.useState)(false);
const checkScrollAbility = (0, _react.useCallback)(() => {
const container = scrollContainerRef.current;
if (container) {
const {
scrollLeft,
scrollWidth,
clientWidth
} = container;
setCanScrollLeft(scrollLeft > 1);
setCanScrollRight(Math.ceil(scrollLeft) < scrollWidth - clientWidth);
}
}, []);
(0, _react.useEffect)(() => {
const container = scrollContainerRef.current;
if (!container) return undefined;
checkScrollAbility();
const resizeObserver = new ResizeObserver(checkScrollAbility);
resizeObserver.observe(container);
container.addEventListener("scroll", checkScrollAbility);
return () => {
resizeObserver.disconnect();
container.removeEventListener("scroll", checkScrollAbility);
};
}, [checkScrollAbility, children]);
const handleScroll = (0, _react.useCallback)(scrollAmount => {
const container = scrollContainerRef.current;
if (container) {
container.scrollBy({
left: scrollAmount,
behavior: "smooth"
});
}
}, []);
const handleScrollLeft = (0, _react.useCallback)(() => {
// Todo, scroll amount can be custom by user through props?
handleScroll(-_constants.numbers.SCROLL_AMOUNT);
}, [handleScroll]);
const handleScrollRight = (0, _react.useCallback)(() => {
handleScroll(_constants.numbers.SCROLL_AMOUNT);
}, [handleScroll]);
return /*#__PURE__*/_react.default.createElement("div", {
className: `${prefix}-scroll-wrapper`
}, canScrollLeft && (/*#__PURE__*/_react.default.createElement("button", {
className: `${prefix}-scroll-button ${prefix}-scroll-button-left`,
onClick: handleScrollLeft,
"aria-label": "Scroll left"
}, /*#__PURE__*/_react.default.createElement(_semiIcons.IconChevronRightStroked, {
className: `${prefix}-scroll-button-left-icon`
}))), /*#__PURE__*/_react.default.createElement("div", {
className: `${prefix}-scroll-container`,
ref: scrollContainerRef
}, children), canScrollRight && (/*#__PURE__*/_react.default.createElement("button", {
className: `${prefix}-scroll-button ${prefix}-scroll-button-right `,
onClick: handleScrollRight,
"aria-label": "Scroll right"
}, /*#__PURE__*/_react.default.createElement(_semiIcons.IconChevronRightStroked, null))));
};
var _default = exports.default = HorizontalScroller;