76 lines
1.9 KiB
JavaScript
76 lines
1.9 KiB
JavaScript
import { clsx } from 'clsx';
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import * as React from 'react';
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import SliderContext from "../context";
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import { getIndex } from "../util";
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import Track from "./Track";
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const Tracks = props => {
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const {
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prefixCls,
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style,
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values,
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startPoint,
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onStartMove
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} = props;
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const {
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included,
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range,
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min,
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styles,
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classNames
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} = React.useContext(SliderContext);
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// =========================== List ===========================
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const trackList = React.useMemo(() => {
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if (!range) {
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// null value do not have track
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if (values.length === 0) {
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return [];
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}
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const startValue = startPoint ?? min;
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const endValue = values[0];
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return [{
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start: Math.min(startValue, endValue),
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end: Math.max(startValue, endValue)
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}];
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}
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// Multiple
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const list = [];
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for (let i = 0; i < values.length - 1; i += 1) {
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list.push({
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start: values[i],
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end: values[i + 1]
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});
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}
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return list;
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}, [values, range, startPoint, min]);
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if (!included) {
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return null;
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}
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// ========================== Render ==========================
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const tracksNode = trackList?.length && (classNames.tracks || styles.tracks) ? /*#__PURE__*/React.createElement(Track, {
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index: null,
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prefixCls: prefixCls,
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start: trackList[0].start,
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end: trackList[trackList.length - 1].end,
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replaceCls: clsx(classNames.tracks, `${prefixCls}-tracks`),
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style: styles.tracks
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}) : null;
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return /*#__PURE__*/React.createElement(React.Fragment, null, tracksNode, trackList.map(({
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start,
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end
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}, index) => /*#__PURE__*/React.createElement(Track, {
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index: index,
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prefixCls: prefixCls,
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style: {
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...getIndex(style, index),
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...styles.track
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},
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start: start,
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end: end,
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key: index,
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onStartMove: onStartMove
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})));
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};
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export default Tracks; |