@netdata/charts/dist/es6/components/line/legend/index.js

Netdata frontend SDK and chart utilities

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function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
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function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
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function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import React, { useRef, useEffect, useState } from "react";
import styled from "styled-components";
import { debounce } from "throttle-debounce";
import { useVirtualizer } from "@tanstack/react-virtual";
import { Box, Flex } from "@netdata/netdata-ui";
import navLeft from "@netdata/netdata-ui/dist/components/icon/assets/nav_left.svg";
import navRight from "@netdata/netdata-ui/dist/components/icon/assets/nav_right.svg";
import { useInitialLoading, useEmpty, useDimensionIds, useChart, useAttributeValue } from "../../provider";
import Dimension, { SkeletonDimension, EmptyDimension } from "./dimension";
import { Fragment } from "react";
import Icon from "../../icon";
import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime";
var Container = styled(Flex).attrs(function (props) {
  return _objectSpread({
    gap: 0.5,
    padding: [0, 0, 1],
    alignItems: "center",
    flex: true,
    "data-testid": "chartLegend"
  }, props);
}).withConfig({
  displayName: "legend__Container",
  componentId: "sc-czwham-0"
})(["overflow-x:auto;overflow-x:overlay;overflow-y:hidden;&::-webkit-scrollbar{height:0;}"]);
var skeletonDimensions = Array.from(Array(5));
var SkeletonDimensions = function SkeletonDimensions() {
  return /*#__PURE__*/_jsx(Fragment, {
    children: skeletonDimensions.map(function (v, index) {
      return /*#__PURE__*/_jsx(SkeletonDimension, {}, index);
    })
  });
};
var VirtualItem = styled(Flex).attrs({
  alignItems: "center",
  padding: [0, 0.5, 0, 0]
}).withConfig({
  displayName: "legend__VirtualItem",
  componentId: "sc-czwham-1"
})(["position:absolute;top:0;left:0;height:100%;"]);
var VirtualDimensions = function VirtualDimensions(_ref) {
  var virtualizer = _ref.virtualizer,
    dimensionIds = _ref.dimensionIds;
  return /*#__PURE__*/_jsx(Box, {
    position: "relative",
    flex: false,
    height: "100%",
    width: "".concat(virtualizer.getTotalSize(), "px"),
    children: virtualizer.getVirtualItems().map(function (virtualItem) {
      var id = dimensionIds[virtualItem.index];
      return /*#__PURE__*/_jsx(VirtualItem, {
        "data-index": virtualItem.index,
        ref: virtualizer.measureElement,
        style: {
          transform: "translateX(".concat(virtualItem.start, "px)")
        },
        children: /*#__PURE__*/_jsx(Dimension, {
          id: id
        })
      }, id);
    })
  });
};
var Legend = function Legend(props) {
  var dimensionIds = useDimensionIds();
  var chart = useChart();
  var initialLoading = useInitialLoading();
  var empty = useEmpty();
  var active = useAttributeValue("active");
  var legendRef = useRef(null);
  var _useState = useState(false),
    _useState2 = _slicedToArray(_useState, 2),
    arrowLeft = _useState2[0],
    setArrowLeft = _useState2[1];
  var _useState3 = useState(false),
    _useState4 = _slicedToArray(_useState3, 2),
    arrowRight = _useState4[0],
    setArrowRight = _useState4[1];
  var virtualizer = useVirtualizer({
    horizontal: true,
    count: (dimensionIds === null || dimensionIds === void 0 ? void 0 : dimensionIds.length) || 0,
    getScrollElement: function getScrollElement() {
      return legendRef.current;
    },
    estimateSize: function estimateSize() {
      return 200;
    },
    overscan: 5
  });
  var totalSize = virtualizer.getTotalSize();
  var updateArrows = function updateArrows() {
    var el = legendRef.current;
    if (!el) return;
    setArrowLeft(el.scrollLeft > 20);
    setArrowRight(el.scrollLeft + el.clientWidth < el.scrollWidth - 20);
  };
  useEffect(function () {
    if (legendRef.current && active) {
      legendRef.current.scrollTo({
        left: chart.getAttribute("legendScroll")
      });
    }
  }, [legendRef.current, active]);
  useEffect(updateArrows, [totalSize]);
  useEffect(function () {
    var scroll = function scroll() {
      var el = legendRef.current;
      if (!el) return;
      chart.updateAttribute("legendScroll", el.scrollLeft);
      updateArrows();
    };
    scroll();
    var handlers = debounce(300, scroll);
    handlers();
    window.addEventListener("resize", handlers);
    if (!legendRef.current) return;
    legendRef.current.addEventListener("scroll", scroll);
    return function () {
      window.removeEventListener("resize", handlers);
      if (!legendRef.current) return;
      legendRef.current.removeEventListener("scroll", scroll);
    };
  }, [legendRef.current]);
  var scrollLeft = function scrollLeft(e) {
    e.preventDefault();
    var container = legendRef.current;
    container.scrollTo({
      left: container.scrollLeft - 100,
      behavior: "smooth"
    });
  };
  var scrollRight = function scrollRight(e) {
    e.preventDefault();
    var container = legendRef.current;
    container.scrollTo({
      left: container.scrollLeft + 100,
      behavior: "smooth"
    });
  };
  return /*#__PURE__*/_jsxs(Flex, {
    overflow: "hidden",
    position: "relative",
    height: "100%",
    children: [arrowLeft && /*#__PURE__*/_jsx(Flex, {
      "data-testid": "filterTray-arrowLeft",
      cursor: "pointer",
      onClick: scrollLeft,
      padding: [0, 1],
      height: "100%",
      position: "absolute",
      left: 0,
      background: "mainChartBg",
      alignItems: "center",
      children: /*#__PURE__*/_jsx(Icon, {
        svg: navLeft,
        color: "key",
        size: "8px"
      })
    }), /*#__PURE__*/_jsxs(Container, _objectSpread(_objectSpread({
      ref: legendRef
    }, props), {}, {
      "data-track": chart.track("legend"),
      children: [!initialLoading && !empty && dimensionIds && /*#__PURE__*/_jsx(VirtualDimensions, {
        virtualizer: virtualizer,
        dimensionIds: dimensionIds
      }), initialLoading && /*#__PURE__*/_jsx(SkeletonDimensions, {}), !initialLoading && empty && /*#__PURE__*/_jsx(EmptyDimension, {})]
    })), arrowRight && /*#__PURE__*/_jsx(Flex, {
      "data-testid": "filterTray-arrowRight",
      cursor: "pointer",
      onClick: scrollRight,
      padding: [0, 1],
      height: "100%",
      position: "absolute",
      right: 0,
      background: "mainChartBg",
      alignItems: "center",
      children: /*#__PURE__*/_jsx(Icon, {
        svg: navRight,
        color: "key",
        size: "8px"
      })
    })]
  });
};
export default Legend;