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frontend/node_modules/rc-slider/es/Tracks/index.js

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+import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
+import cls from 'classnames';
+import * as React from 'react';
+import SliderContext from "../context";
+import { getIndex } from "../util";
+import Track from "./Track";
+var Tracks = function Tracks(props) {
+  var prefixCls = props.prefixCls,
+    style = props.style,
+    values = props.values,
+    startPoint = props.startPoint,
+    onStartMove = props.onStartMove;
+  var _React$useContext = React.useContext(SliderContext),
+    included = _React$useContext.included,
+    range = _React$useContext.range,
+    min = _React$useContext.min,
+    styles = _React$useContext.styles,
+    classNames = _React$useContext.classNames;
+
+  // =========================== List ===========================
+  var trackList = React.useMemo(function () {
+    if (!range) {
+      // null value do not have track
+      if (values.length === 0) {
+        return [];
+      }
+      var startValue = startPoint !== null && startPoint !== void 0 ? startPoint : min;
+      var endValue = values[0];
+      return [{
+        start: Math.min(startValue, endValue),
+        end: Math.max(startValue, endValue)
+      }];
+    }
+
+    // Multiple
+    var list = [];
+    for (var i = 0; i < values.length - 1; i += 1) {
+      list.push({
+        start: values[i],
+        end: values[i + 1]
+      });
+    }
+    return list;
+  }, [values, range, startPoint, min]);
+  if (!included) {
+    return null;
+  }
+
+  // ========================== Render ==========================
+  var tracksNode = trackList !== null && trackList !== void 0 && trackList.length && (classNames.tracks || styles.tracks) ? /*#__PURE__*/React.createElement(Track, {
+    index: null,
+    prefixCls: prefixCls,
+    start: trackList[0].start,
+    end: trackList[trackList.length - 1].end,
+    replaceCls: cls(classNames.tracks, "".concat(prefixCls, "-tracks")),
+    style: styles.tracks
+  }) : null;
+  return /*#__PURE__*/React.createElement(React.Fragment, null, tracksNode, trackList.map(function (_ref, index) {
+    var start = _ref.start,
+      end = _ref.end;
+    return /*#__PURE__*/React.createElement(Track, {
+      index: index,
+      prefixCls: prefixCls,
+      style: _objectSpread(_objectSpread({}, getIndex(style, index)), styles.track),
+      start: start,
+      end: end,
+      key: index,
+      onStartMove: onStartMove
+    });
+  }));
+};
+export default Tracks;