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feat(tui): add unread tab glow (#39428)

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Kit Langton 2026-07-28 22:34:33 -04:00 • committed by GitHub
commit f64b50d71b
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3 changed files with 63 additions and 10 deletions
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18
packages/tui/test/component/tab-pulse.test.ts
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@ -1,5 +1,5 @@
import { expect, test } from "bun:test"
import { completionPulseOpacity } from "../../src/component/tab-pulse"
import { completionPulseOpacity, unreadGlowIntensity } from "../../src/component/tab-pulse"
test("completion pulse rises quickly and fades over the remaining duration", () => {
expect(completionPulseOpacity(0)).toBe(0)
@ -8,3 +8,19 @@ test("completion pulse rises quickly and fades over the remaining duration", ()
expect(completionPulseOpacity(0.58)).toBeCloseTo(0.5)
expect(completionPulseOpacity(1)).toBe(0)
})
test("unread glow peaks behind the tab number and fades to the normal background", () => {
const intensities = Array.from({ length: 22 }, (_, index) => unreadGlowIntensity(index, 22))
expect(intensities[0]).toBe(1)
expect(intensities[1]).toBe(1)
expect(intensities[2]).toBeLessThan(1)
expect(intensities.slice(1)).toEqual(intensities.slice(1).sort((a, b) => b - a))
expect(intensities[13]).toBe(0)
expect(intensities.at(-1)).toBe(0)
})
test("unread glow reaches the normal background on compact tabs", () => {
expect(unreadGlowIntensity(0, 8)).toBe(1)
expect(unreadGlowIntensity(7, 8)).toBe(0)
})