@grafana/ui/dist/esm/components/uPlot/Plot.mjs.map

Grafana Components Library

{"version":3,"file":"Plot.mjs","sources":["../../../../src/components/uPlot/Plot.tsx"],"sourcesContent":["import { Component, createRef } from 'react';\nimport uPlot, { AlignedData, Options } from 'uplot';\n\nimport { PlotProps } from './types';\nimport { pluginLog } from './utils';\n\nimport 'uplot/dist/uPlot.min.css';\n\nfunction sameDims(prevProps: PlotProps, nextProps: PlotProps) {\n  return nextProps.width === prevProps.width && nextProps.height === prevProps.height;\n}\n\nfunction sameData(prevProps: PlotProps, nextProps: PlotProps) {\n  return nextProps.data === prevProps.data;\n}\n\nfunction sameConfig(prevProps: PlotProps, nextProps: PlotProps) {\n  return nextProps.config === prevProps.config;\n}\n\ntype UPlotChartState = {\n  plot: uPlot | null;\n};\n\n/**\n * @internal\n * uPlot abstraction responsible for plot initialisation, setup and refresh\n * Receives a data frame that is x-axis aligned, as of https://github.com/leeoniya/uPlot/tree/master/docs#data-format\n * Exposes context for uPlot instance access\n */\nexport class UPlotChart extends Component<PlotProps, UPlotChartState> {\n  plotContainer = createRef<HTMLDivElement>();\n  plotCanvasBBox = createRef<DOMRect>();\n  plotInstance: uPlot | null = null;\n\n  constructor(props: PlotProps) {\n    super(props);\n  }\n\n  reinitPlot() {\n    let { width, height, plotRef } = this.props;\n\n    this.plotInstance?.destroy();\n\n    if (width === 0 && height === 0) {\n      return;\n    }\n\n    this.props.config.addHook('setSize', (u) => {\n      const canvas = u.over;\n      if (!canvas) {\n        return;\n      }\n    });\n\n    const config: Options = {\n      width: Math.floor(this.props.width),\n      height: Math.floor(this.props.height),\n      ...this.props.config.getConfig(),\n    };\n\n    pluginLog('UPlot', false, 'Reinitializing plot', config);\n    const plot = new uPlot(config, this.props.data as AlignedData, this.plotContainer!.current!);\n\n    if (plotRef) {\n      plotRef(plot);\n    }\n\n    this.plotInstance = plot;\n  }\n\n  componentDidMount() {\n    this.reinitPlot();\n  }\n\n  componentWillUnmount() {\n    this.plotInstance?.destroy();\n  }\n\n  componentDidUpdate(prevProps: PlotProps) {\n    if (!sameDims(prevProps, this.props)) {\n      this.plotInstance?.setSize({\n        width: Math.floor(this.props.width),\n        height: Math.floor(this.props.height),\n      });\n    } else if (!sameConfig(prevProps, this.props)) {\n      this.reinitPlot();\n    } else if (!sameData(prevProps, this.props)) {\n      this.plotInstance?.setData(this.props.data as AlignedData);\n    }\n  }\n\n  render() {\n    return (\n      <div style={{ position: 'relative' }}>\n        <div ref={this.plotContainer} data-testid=\"uplot-main-div\" />\n        {this.props.children}\n      </div>\n    );\n  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