fix(stats): respect prefers-reduced-motion in the delete indicator

The delete indicator's sweeping bar and spinner loop forever, which is
exactly the motion prefers-reduced-motion exists to suppress.

Shortening the duration the way the overlay does for its one-shot
notification animations would speed a looping animation up instead of
removing it, so the looping rules stop outright and hold a static busy
state: the bar fills its track rather than sitting off-screen at its
start transform, and the toast text carries the meaning.
This commit is contained in:
2026-07-28 18:20:11 -07:00
parent d5f887a834
commit 8ac0d41d78
2 changed files with 42 additions and 0 deletions
+20
View File
@@ -108,3 +108,23 @@ body.overlay-mode #root {
.animate-indeterminate {
animation: indeterminate-sweep 1.1s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) {
.animate-fade-in {
animation-duration: 1ms;
}
/* Looping motion can't just be shortened the way a one-shot entrance can —
that speeds it up rather than removing it. The delete indicator holds a
static busy state instead: the bar fills its track and the spinner stops,
leaving the toast text to carry the meaning. */
.animate-indeterminate {
animation: none;
width: 100%;
transform: none;
}
.animate-spin {
animation: none;
}
}
+22
View File
@@ -14,3 +14,25 @@ test('stats overlay mode paints an opaque full-viewport background', () => {
/body\.overlay-mode #root\s*\{[^}]*background-color:\s*var\(--color-ctp-base\);/s,
);
});
test('reduced motion stops the looping delete indicator rather than speeding it up', () => {
const reducedMotion = /@media \(prefers-reduced-motion: reduce\)\s*\{(?<body>.*)\n\}/s.exec(css)
?.groups?.body;
assert.ok(reducedMotion, 'expected a prefers-reduced-motion block');
// Shortening an infinite animation makes it run faster, so the looping rules
// have to switch it off outright and hold a static state instead.
assert.match(reducedMotion, /\.animate-indeterminate\s*\{[^}]*animation:\s*none;/s);
assert.match(reducedMotion, /\.animate-indeterminate\s*\{[^}]*width:\s*100%;/s);
assert.match(reducedMotion, /\.animate-spin\s*\{[^}]*animation:\s*none;/s);
assert.doesNotMatch(reducedMotion, /\.animate-indeterminate\s*\{[^}]*animation-duration:/s);
assert.doesNotMatch(reducedMotion, /\.animate-spin\s*\{[^}]*animation-duration:/s);
});
test('the looping delete indicator keeps its animation for everyone else', () => {
const beforeMediaQuery = css.slice(0, css.indexOf('@media (prefers-reduced-motion'));
assert.match(
beforeMediaQuery,
/\.animate-indeterminate\s*\{\s*animation:\s*indeterminate-sweep/s,
);
});