arnefandCopilot
28c55804d8
The month view rendered each event's text (and its little leading dot) in the calendar's own color, on a very lightly tinted (~13% opacity) background of that same color. For a light color like white or pale yellow, the text ended up effectively invisible against its own near-white background. internal/web/templates/calendar.templ: add eventTextColor(hex), which darkens colors above a perceived-luminance threshold (keeping the hue, e.g. white -> a mid gray, pale yellow -> olive) while leaving already- legible colors untouched; used for both the event text and its leading dot. Also add a subtle ring to the event dot and to the calendar legend's color swatch so a white/near-white swatch stays visible against the page's white background, independent of the text-color fix. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
44 lines
1.6 KiB
Go
44 lines
1.6 KiB
Go
package templates
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import "testing"
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// TestEventTextColorKeepsReadableColorsUnchanged covers the reported bug:
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// picking white (or any other very light color) for a calendar made its
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// events unreadable in the month view, since monthDayCell used the same
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// color for both the (barely tinted) background and the text. Light
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// colors must be darkened for text use; colors that were already fine
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// must render exactly as chosen.
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func TestEventTextColorKeepsReadableColorsUnchanged(t *testing.T) {
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for _, c := range []string{"#3b82f6", "#ec4899", "#10b981", "#000000"} {
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if got := eventTextColor(c); got != c {
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t.Errorf("eventTextColor(%s) = %s, want unchanged", c, got)
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}
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}
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}
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func TestEventTextColorDarkensLightColors(t *testing.T) {
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for _, c := range []string{"#ffffff", "#ffff00", "#f0f0f0", "#fefefe"} {
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got := eventTextColor(c)
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if got == c {
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t.Errorf("eventTextColor(%s) = %s, want darkened for readability", c, got)
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}
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r, g, b, ok := parseHexColor(got)
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if !ok {
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t.Fatalf("eventTextColor(%s) returned unparseable color %s", c, got)
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}
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luminance := 0.299*float64(r) + 0.587*float64(g) + 0.114*float64(b)
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if luminance > 170 {
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t.Errorf("eventTextColor(%s) = %s still too light (luminance %.1f)", c, got, luminance)
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}
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}
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}
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func TestEventTextColorFallsBackForInvalidInput(t *testing.T) {
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if got := eventTextColor(""); got != colorOrDefault("") {
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t.Errorf("eventTextColor(\"\") = %s, want the same default colorOrDefault returns", got)
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}
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if got := eventTextColor("not-a-color"); got != "not-a-color" {
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t.Errorf("eventTextColor(unparseable) = %s, want passed through unchanged", got)
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}
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}
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