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52 lines
1.7 KiB
52 lines
1.7 KiB
"use strict";
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var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports["default"] = scrollTo;
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var _raf = _interopRequireDefault(require("raf"));
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var _getScroll = _interopRequireWildcard(require("./getScroll"));
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var _easings = require("./easings");
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function scrollTo(y) {
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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var _options$getContainer = options.getContainer,
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getContainer = _options$getContainer === void 0 ? function () {
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return window;
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} : _options$getContainer,
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callback = options.callback,
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_options$duration = options.duration,
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duration = _options$duration === void 0 ? 450 : _options$duration;
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var container = getContainer();
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var scrollTop = (0, _getScroll["default"])(container, true);
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var startTime = Date.now();
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var frameFunc = function frameFunc() {
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var timestamp = Date.now();
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var time = timestamp - startTime;
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var nextScrollTop = (0, _easings.easeInOutCubic)(time > duration ? duration : time, scrollTop, y, duration);
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if ((0, _getScroll.isWindow)(container)) {
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container.scrollTo(window.pageXOffset, nextScrollTop);
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} else if (container instanceof HTMLDocument || container.constructor.name === 'HTMLDocument') {
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container.documentElement.scrollTop = nextScrollTop;
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} else {
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container.scrollTop = nextScrollTop;
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}
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if (time < duration) {
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(0, _raf["default"])(frameFunc);
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} else if (typeof callback === 'function') {
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callback();
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}
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};
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(0, _raf["default"])(frameFunc);
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} |