51 lines
1.6 KiB
JavaScript
51 lines
1.6 KiB
JavaScript
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"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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exports.__esModule = true;
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exports.default = scrollTo;
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var _animationFrame = require("./animationFrame");
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var _height = _interopRequireDefault(require("./height"));
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var _isWindow = _interopRequireDefault(require("./isWindow"));
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var _offset = _interopRequireDefault(require("./offset"));
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var _scrollParent = _interopRequireDefault(require("./scrollParent"));
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var _scrollTop = _interopRequireDefault(require("./scrollTop"));
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/* eslint-disable no-nested-ternary */
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function scrollTo(selected, scrollParent) {
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var offset = (0, _offset.default)(selected);
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var poff = {
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top: 0,
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left: 0
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};
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if (!selected) return undefined;
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var list = scrollParent || (0, _scrollParent.default)(selected);
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var isWin = (0, _isWindow.default)(list);
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var listScrollTop = (0, _scrollTop.default)(list);
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var listHeight = (0, _height.default)(list, true);
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if (!isWin) poff = (0, _offset.default)(list);
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offset = {
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top: offset.top - poff.top,
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left: offset.left - poff.left,
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height: offset.height,
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width: offset.width
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};
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var selectedHeight = offset.height;
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var selectedTop = offset.top + (isWin ? 0 : listScrollTop);
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var bottom = selectedTop + selectedHeight;
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listScrollTop = listScrollTop > selectedTop ? selectedTop : bottom > listScrollTop + listHeight ? bottom - listHeight : listScrollTop;
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var id = (0, _animationFrame.request)(function () {
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return (0, _scrollTop.default)(list, listScrollTop);
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});
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return function () {
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return (0, _animationFrame.cancel)(id);
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};
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}
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module.exports = exports["default"];
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