natercio
47f38fce2b
Badges / coveralls (push) Successful in 1m1s
Reviewed-on: #33 Co-authored-by: Natercio Moniz <[email protected]>
70 lines
2.7 KiB
Go
70 lines
2.7 KiB
Go
package html
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import (
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"fmt"
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"strings"
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"github.com/jedib0t/go-pretty/v6/table"
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"github.com/nmoniz/any2anexoj/internal"
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"github.com/nmoniz/any2anexoj/internal/writing/internal/tabledef"
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)
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// htmlCSSClass is the CSS class list put on the rendered report table.
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const htmlCSSClass = "table table-striped table-hover table-bordered"
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// widthIndex is the weight of the auto-index (row number) column; the other
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// column weights come from tabledef's width budgets.
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const widthIndex = 6
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// htmlColumnWeights lists one weight per rendered column, starting with the
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// auto-index column, mirroring the column order of tabledef.Build so the
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// HTML table keeps columns in the same strict proportion to each other as
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// the terminal layout.
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var htmlColumnWeights = []int{
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widthIndex,
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tabledef.WidthCountry, tabledef.WidthOther, tabledef.WidthOther, tabledef.WidthOther, tabledef.WidthOther, tabledef.WidthEuros,
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tabledef.WidthOther, tabledef.WidthOther, tabledef.WidthOther, tabledef.WidthEuros,
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tabledef.WidthEuros, tabledef.WidthEuros, tabledef.WidthCountry,
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}
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// renderTableFragment renders aw as the Bootstrap-styled HTML <table>
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// fragment embedded in the document. The table gets a fixed layout with
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// strictly proportional column widths, so the browser — not this package —
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// decides when a header or cell wraps: on wide screens everything fits on
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// one line, on narrow ones it wraps automatically.
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func (hw *Writer) renderTableFragment(aw *internal.AggregatorWriter) string {
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t := tabledef.Build(hw.translator, aw)
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t.Style().HTML = table.HTMLOptions{
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CSSClass: htmlCSSClass,
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EscapeText: true,
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Newline: "<br/>",
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EmptyColumn: " ",
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}
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html := t.RenderHTML()
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// go-pretty cannot emit table-level attributes or a <colgroup>, so splice
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// them into its output: the fixed layout makes the colgroup's relative
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// widths authoritative instead of content-driven column sizing.
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openTag := `<table class="` + htmlCSSClass + `">`
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fixedTag := `<table class="` + htmlCSSClass + `" style="table-layout: fixed">` + "\n" + colgroupHTML()
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return strings.Replace(html, openTag, fixedTag, 1)
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}
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// colgroupHTML returns a <colgroup> with one <col> per rendered column, each
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// sized strictly in proportion to its weight. With the fixed table layout
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// applied in renderTableFragment these widths are authoritative: wide
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// viewports fit headers on a single line, narrow ones wrap automatically.
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func colgroupHTML() string {
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var total int
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for _, w := range htmlColumnWeights {
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total += w
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}
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var sb strings.Builder
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sb.WriteString("<colgroup>")
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for _, w := range htmlColumnWeights {
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fmt.Fprintf(&sb, `<col style="width: %.2f%%">`, float64(w)/float64(total)*100)
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}
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sb.WriteString("</colgroup>")
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return sb.String()
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}
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