44 lines
1.5 KiB
Go
44 lines
1.5 KiB
Go
package webui
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import "kjol/vdom"
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// Port of web/kit/Chart.tsx (default export ReactiveChart).
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//
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// NOTE: The TSX wraps chart.js — it imperatively creates a `new Chart(ctx, cfg)`
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// against a <canvas> 2D context inside onMount, and pushes new data/options via
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// createEffect. None of that (canvas 2D drawing, a JS charting lib, mount/cleanup
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// lifecycles) exists in the neutral gowasm runtime, so actual chart DRAWING is out
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// of scope here. This port renders the faithful container structure + Tailwind and
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// an empty <canvas>, keeping a props shape for API parity. The example app instead
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// draws charts server-side as go-chart SVG.
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// Chart type identifiers (chart.js `type`), kept for API parity with the TSX
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// ChartType union. Unused by this SVG-less container.
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const (
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ChartTypeLine = "line"
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ChartTypeBar = "bar"
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ChartTypeRadar = "radar"
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ChartTypeDoughnut = "doughnut"
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ChartTypePolarArea = "polarArea"
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ChartTypeBubble = "bubble"
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ChartTypePie = "pie"
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ChartTypeScatter = "scatter"
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)
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// ReactiveChartProps mirrors the TSX props. Data and Options are accepted for API
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// parity but are not rendered (no JS chart lib in the neutral runtime; see NOTE).
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type ReactiveChartProps struct {
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Type string
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Data any
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Options any
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Class string
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}
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// ReactiveChart renders the chart container (h-full + user class) wrapping an
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// empty <canvas>. Drawing is out of scope — see the file NOTE.
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func ReactiveChart(p ReactiveChartProps) *vdom.VNode {
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return vdom.Div(vdom.Attr("class", cx("h-full", p.Class)),
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vdom.Canvas(),
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)
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}
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