@grafana/ui/dist/esm/components/uPlot/geometries/EventsCanvas.mjs.map

Grafana Components Library

{"version":3,"file":"EventsCanvas.mjs","sources":["../../../../../src/components/uPlot/geometries/EventsCanvas.tsx"],"sourcesContent":["import { useLayoutEffect, useMemo, useRef, useState } from 'react';\nimport * as React from 'react';\nimport { useMountedState } from 'react-use';\nimport uPlot from 'uplot';\n\nimport { DataFrame, DataFrameFieldIndex } from '@grafana/data';\n\nimport { UPlotConfigBuilder } from '../config/UPlotConfigBuilder';\n\nimport { Marker } from './Marker';\nimport { XYCanvas } from './XYCanvas';\n\ninterface EventsCanvasProps {\n  id: string;\n  config: UPlotConfigBuilder;\n  events: DataFrame[];\n  renderEventMarker: (dataFrame: DataFrame, dataFrameFieldIndex: DataFrameFieldIndex) => React.ReactNode;\n  mapEventToXYCoords: (\n    dataFrame: DataFrame,\n    dataFrameFieldIndex: DataFrameFieldIndex\n  ) => { x: number; y: number } | undefined;\n}\n\nexport function EventsCanvas({ id, events, renderEventMarker, mapEventToXYCoords, config }: EventsCanvasProps) {\n  const plotInstance = useRef<uPlot>();\n  // render token required to re-render annotation markers. Rendering lines happens in uPlot and the props do not change\n  // so we need to force the re-render when the draw hook was performed by uPlot\n  const [renderToken, setRenderToken] = useState(0);\n  const isMounted = useMountedState();\n\n  useLayoutEffect(() => {\n    config.addHook('init', (u) => {\n      plotInstance.current = u;\n    });\n\n    config.addHook('draw', () => {\n      if (!isMounted()) {\n        return;\n      }\n      setRenderToken((s) => s + 1);\n    });\n  }, [config, setRenderToken]);\n\n  const eventMarkers = useMemo(() => {\n    const markers: React.ReactNode[] = [];\n\n    if (!plotInstance.current || events.length === 0) {\n      return markers;\n    }\n\n    for (let i = 0; i < events.length; i++) {\n      const frame = events[i];\n      for (let j = 0; j < frame.length; j++) {\n        const coords = mapEventToXYCoords(frame, { fieldIndex: j, frameIndex: i });\n        if (!coords) {\n          continue;\n        }\n        markers.push(\n          <Marker {...coords} key={`${id}-marker-${i}-${j}`}>\n            {renderEventMarker(frame, { fieldIndex: j, frameIndex: i })}\n          </Marker>\n        );\n      }\n    }\n\n    return <>{markers}</>;\n  }, [events, renderEventMarker, renderToken]);\n\n  if (!plotInstance.current) {\n    return null;\n  }\n\n  return (\n    <XYCanvas\n      left={plotInstance.current.bbox.left / window.devicePixelRatio}\n      top={plotInstance.current.bbox.top / window.devicePixelRatio}\n    >\n      {eventMarkers}\n    </XYCanvas>\n  );\n}\n"],"names":[],"mappings":";;;;;;AAuBO,SAAS,aAAa,EAAE,EAAA,EAAI,QAAQ,iBAAmB,EAAA,kBAAA,EAAoB,QAA6B,EAAA;AAC7G,EAAA,MAAM,eAAe,MAAc,EAAA;AAGnC,EAAA,MAAM,CAAC,WAAA,EAAa,cAAc,CAAA,GAAI,SAAS,CAAC,CAAA;AAChD,EAAA,MAAM,YAAY,eAAgB,EAAA;AAElC,EAAA,eAAA,CAAgB,MAAM;AACpB,IAAO,MAAA,CAAA,OAAA,CAAQ,MAAQ,EAAA,CAAC,CAAM,KAAA;AAC5B,MAAA,YAAA,CAAa,OAAU,GAAA,CAAA;AAAA,KACxB,CAAA;AAED,IAAO,MAAA,CAAA,OAAA,CAAQ,QAAQ,MAAM;AAC3B,MAAI,IAAA,CAAC,WAAa,EAAA;AAChB,QAAA;AAAA;AAEF,MAAe,cAAA,CAAA,CAAC,CAAM,KAAA,CAAA,GAAI,CAAC,CAAA;AAAA,KAC5B,CAAA;AAAA,GACA,EAAA,CAAC,MAAQ,EAAA,cAAc,CAAC,CAAA;AAE3B,EAAM,MAAA,YAAA,GAAe,QAAQ,MAAM;AACjC,IAAA,MAAM,UAA6B,EAAC;AAEpC,IAAA,IAAI,CAAC,YAAA,CAAa,OAAW,IAAA,MAAA,CAAO,WAAW,CAAG,EAAA;AAChD,MAAO,OAAA,OAAA;AAAA;AAGT,IAAA,KAAA,IAAS,CAAI,GAAA,CAAA,EAAG,CAAI,GAAA,MAAA,CAAO,QAAQ,CAAK,EAAA,EAAA;AACtC,MAAM,MAAA,KAAA,GAAQ,OAAO,CAAC,CAAA;AACtB,MAAA,KAAA,IAAS,CAAI,GAAA,CAAA,EAAG,CAAI,GAAA,KAAA,CAAM,QAAQ,CAAK,EAAA,EAAA;AACrC,QAAM,MAAA,MAAA,GAAS,mBAAmB,KAAO,EAAA,EAAE,YAAY,CAAG,EAAA,UAAA,EAAY,GAAG,CAAA;AACzE,QAAA,IAAI,CAAC,MAAQ,EAAA;AACX,UAAA;AAAA;AAEF,QAAQ,OAAA,CAAA,IAAA;AAAA,0BACN,aAAA,CAAC,UAAQ,GAAG,MAAA,EAAQ,KAAK,CAAG,EAAA,EAAE,WAAW,CAAC,CAAA,CAAA,EAAI,CAAC,CAC5C,CAAA,EAAA,EAAA,iBAAA,CAAkB,OAAO,EAAE,UAAA,EAAY,GAAG,UAAY,EAAA,CAAA,EAAG,CAC5D;AAAA,SACF;AAAA;AACF;AAGF,IAAA,uCAAU,QAAQ,EAAA,OAAA,EAAA,CAAA;AAAA,GACjB,EAAA,CAAC,MAAQ,EAAA,iBAAA,EAAmB,WAAW,CAAC,CAAA;AAE3C,EAAI,IAAA,CAAC,aAAa,OAAS,EAAA;AACzB,IAAO,OAAA,IAAA;AAAA;AAGT,EACE,uBAAA,GAAA;AAAA,IAAC,QAAA;AAAA,IAAA;AAAA,MACC,IAAM,EAAA,YAAA,CAAa,OAAQ,CAAA,IAAA,CAAK,OAAO,MAAO,CAAA,gBAAA;AAAA,MAC9C,GAAK,EAAA,YAAA,CAAa,OAAQ,CAAA,IAAA,CAAK,MAAM,MAAO,CAAA,gBAAA;AAAA,MAE3C,QAAA,EAAA;AAAA;AAAA,GACH;AAEJ;;;;"}