State improvements

[techniq]

Goals

• Integrate simplified charts
  • snippets / default impl
  • simplified setup
  • series state
• External control / sync
  • Set initial highlightSeriesKey
  • Save/restore state to localStorage / query string / etc
• Improve tooltip data (multi-series with/without data, etc)
  • currently expose tooltipState.data and tooltipState.payload

---

• Chart
  • Add series prop
  • Add orientation to Chart (if needed)?
• ChartState / context
  • Expose seriesState on context
  • Simplify HighlightKey
• Rename ChartState geoContext / brushContext / tooltipContext to geoState / etc
• Rename <GeoContext bind:geoContext> to <GeoContext bind:state> (and BrushContext, TooltipContext, TransformContext)
• Instantiate GeoState etc within Chart / ChartState?
  • Replace getGeoContext with getChartContext and use ctx.geo
    • Useful to keep getGeoContext for overrides such as a translucent globe
  • Do we need GeoContext / etc? (if it doesn't have any pointer events / elements)
    • Only when overriding (not within Chart. Simplified and renamed GeoContext to GeoProjection
  • Move $effect()logic in GeoContext to GeoState
• Fix <BarChart seriesLayout="group"> regression (before this PR)
• Remove createLegendProps() and handle directly since ctx.seriesState is available
• Update ChartAnnotations to use ctx.seriesState
• Update DefaultTooltip to use ctx.seriesState
• GeoDebug usage
• TransformDebug usage
• GeoTile performance (local-only?)
  • local vs prod
• Should TransformState handle pointer events onPointerMove, etc or within TransformContext
• Rename tooltipContext props (Arc, GeoPath, etc) to tooltipState (or just tooltip)?
• Remove tooltipMetaContext (consolidate payload, etc)

related:

• Expose SeriesState for simplified charts #487
• [BrushContext] Chart brush xDomain isn't reactive #550

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Latest commit: 2a6d483

The changes in this PR will be included in the next version bump.

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layerchart	Patch

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