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- "use strict";
- var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = scrollTo;
- var _raf = _interopRequireDefault(require("./raf"));
- var _easings = require("./easings");
- var _getScroll = _interopRequireWildcard(require("./getScroll"));
- 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 && Object.prototype.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; }
- function scrollTo(y) {
- let options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- const {
- getContainer = () => window,
- callback,
- duration = 450
- } = options;
- const container = getContainer();
- const scrollTop = (0, _getScroll.default)(container, true);
- const startTime = Date.now();
- const frameFunc = () => {
- const timestamp = Date.now();
- const time = timestamp - startTime;
- const nextScrollTop = (0, _easings.easeInOutCubic)(time > duration ? duration : time, scrollTop, y, duration);
- if ((0, _getScroll.isWindow)(container)) {
- container.scrollTo(window.scrollX, nextScrollTop);
- } else if (container instanceof Document) {
- container.documentElement.scrollTop = nextScrollTop;
- } else {
- container.scrollTop = nextScrollTop;
- }
- if (time < duration) {
- (0, _raf.default)(frameFunc);
- } else if (typeof callback === 'function') {
- callback();
- }
- };
- (0, _raf.default)(frameFunc);
- }
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