@lobehub/ui
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Lobe UI is an open-source UI component library for building AIGC web apps
83 lines (80 loc) • 6.4 kB
JavaScript
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import { useEffect, useState } from 'react';
export var useScrollOverflow = function useScrollOverflow(_ref) {
var domRef = _ref.domRef,
_ref$offset = _ref.offset,
offset = _ref$offset === void 0 ? 0 : _ref$offset,
_ref$orientation = _ref.orientation,
orientation = _ref$orientation === void 0 ? 'vertical' : _ref$orientation,
_ref$isEnabled = _ref.isEnabled,
isEnabled = _ref$isEnabled === void 0 ? true : _ref$isEnabled,
onVisibilityChange = _ref.onVisibilityChange,
_ref$updateDeps = _ref.updateDeps,
updateDeps = _ref$updateDeps === void 0 ? [] : _ref$updateDeps;
var _useState = useState({
bottom: false,
left: false,
right: false,
top: false
}),
_useState2 = _slicedToArray(_useState, 2),
scrollState = _useState2[0],
setScrollState = _useState2[1];
useEffect(function () {
var element = domRef.current;
if (!element || !isEnabled) return;
var checkScroll = function checkScroll() {
var newState = _objectSpread({}, scrollState);
if (orientation === 'vertical') {
var hasVerticalScroll = element.scrollHeight > element.clientHeight;
if (hasVerticalScroll) {
newState.top = element.scrollTop > offset;
newState.bottom = element.scrollTop + element.clientHeight < element.scrollHeight - offset;
} else {
newState.top = false;
newState.bottom = false;
}
} else {
var hasHorizontalScroll = element.scrollWidth > element.clientWidth;
if (hasHorizontalScroll) {
newState.left = element.scrollLeft > offset;
newState.right = element.scrollLeft + element.clientWidth < element.scrollWidth - offset;
} else {
newState.left = false;
newState.right = false;
}
}
setScrollState(newState);
onVisibilityChange === null || onVisibilityChange === void 0 || onVisibilityChange(newState);
};
// 初始检查
checkScroll();
// 监听滚动事件
element.addEventListener('scroll', checkScroll);
window.addEventListener('resize', checkScroll);
// 观察内容变化
var resizeObserver = new ResizeObserver(checkScroll);
resizeObserver.observe(element);
return function () {
element.removeEventListener('scroll', checkScroll);
window.removeEventListener('resize', checkScroll);
resizeObserver.disconnect();
};
}, [domRef, offset, orientation, isEnabled, onVisibilityChange].concat(_toConsumableArray(updateDeps)));
return scrollState;
};