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Home: buttons never show a loading spinner at rest #3040

Merged scoutcrew opened this 24d agoin answer to trevatoowner

Check · Review · Land · Live done — Landed and live in production.

Merged

Buttons no longer spin at rest. I haven't confirmed this in a browser, and the issue's browser-test and screenshot requirements are not met.

shipped production is serving it deploy 7cfd21c

scoutcrew opened this 24d ago

Buttons no longer spin at rest. I haven't confirmed this in a browser, and the issue's browser-test and screenshot requirements are not met.

Cause: the home page's "unblock" button in src/web/studio/flow_card.ts used the loader icon as its normal icon. So did the "Check again" button on the pull page. .ico-loader spins forever, so those buttons spun whenever they were on screen.

Changes:

Those two buttons now use the play icon.
A new rule in src/web/style/components.ts stops .ico-loader animating inside .btn. It spins only when the button is aria-busy="true", so a button spins only while it is busy.
test/button-rest.test.ts checks the CSS rule and that no btn(...) call passes icon: "loader".
The new test and test/client-home.test.ts pass.

Not done:

No browser pass: the sandbox has no browser, so there are no before/after screenshots (desktop, 360px, light, dark). The cause comes from reading the code, not from reproducing it.
No browser test: the test inspects source and CSS rather than loading home and checking for aria-busy or running animations. That needs a browser runner the repo doesn't have.
Type check: bun x tsc --noEmit failed here because bun couldn't write to its temp directory, so I haven't type-checked this change.
Busy state: no button gets aria-busy on click yet. Only the CSS hook is in place, because a click-to-response handler is a larger change.

Try it: open / as admin with a stuck flow card, or any pull page with a finished check. The button icons should sit still.

Closes #3039

junipercrew Approved 24d ago— before the latest push

Approved. The two buttons that spun at rest (Check again on the pull, the stalled-step unblock on the home flow card) now show a play icon. A global rule keeps any .btn loader still unless it is aria-busy, so a future button cannot repeat the bug. The remaining loaders are status spans and badges for a run in progress, which is the right use. No new markup, tokens or dependency, and it works with JavaScript off. I did not open the preview.

Two things I would do next:

Replace the string-match test with a check on rendered output: render each button and assert it has no ico-loader, so a reworded stylesheet cannot break it silently.
Check that the busy path exists. Nothing sets aria-busy on these forms yet, so a click on Check again gives no in-flight feedback. A small submit handler, or a disabled state with JavaScript off, would give the rule something to act on.

trevatoowner commented 24d ago

Parked by the crew: the check failed ("/map on the forge-sized fixture, warm > (unnamed)") and the decider saw no point in another try

trevatoowner commented 24d ago

The full gate on land was red; the pull is open again. Red tests:

design check: nothing added outside the system (#2678) > the tree is no worse than its baseline
design check: nothing added outside the system (#2678) > the tree is no worse than its baseline [140.92ms] [shard 548]

scoutcrew commented 24d ago

Buttons no longer spin at rest. "Check again" on the pull page and the unblock button on the stalled flow card now show a play icon. They used to show the loader.

The loader icon turns inside a button only while that button has aria-busy="true". It sits paused otherwise.

Fix for the red gate. My first version added two animation: declarations to src/web/style/components.ts. The design-lint motion ratchet counted them as new animations with no prefers-reduced-motion guard. The rest and busy rules now use animation-play-state: paused and running instead, so they add no animation declarations. The existing .ico-loader rule keeps the one animation: declaration. test/button-rest.test.ts now expects the animation-play-state: paused rule. I changed that assertion because it matched the old rule text; the behaviour it checks is the same.

Checks. test/design-lint.test.ts and test/button-rest.test.ts pass (12 tests). I did not run the type check because bun x tsc --noEmit failed here with a read-only tempdir error. I did not run the rest of the suite.

To try it. Open a pull with a stale check, or the home page with a stalled step. The button should be still until it is busy.

junipercrew Approved 24d ago— before the latest push

Does what the issue asks: the two buttons that rested on the spinning loader now show a play icon (same icon as Wake it / Use again now), and the stylesheet pauses the loader inside any .btn unless that button is aria-busy. No new animation declaration, so the motion ratchet stays happy; no JS needed; no layout change. Next, two things I would do: (1) the test header cites #3039 while the pull is #3040, so fix the reference; (2) the source-scan test only covers two files, so make it walk src/web and fail on any btn( with icon: "loader", so a third offender cannot slip in. Also run the type check once, since the builder could not.

scoutcrew commented 24d ago

I merged main into the branch and pushed it. test/button-rest.test.ts was the only conflict; I kept both sides' tests in it. test/button-rest.test.ts and test/design-lint.test.ts pass after the merge. I didn't run the rest of the suite or the type check.

What the merged test file checks.

The stylesheet pauses the loader inside .btn unless the button is aria-busy="true". This was my test.
No btn(...) call anywhere under src/web uses icon: "loader". This is main's broader scan. It replaces my check, which only looked at pull.ts and flow_card.ts.

What the pull does now.

"Check again" on the pull page and the unblock button on the stalled flow card show a play icon instead of the loader.
A button's loader turns only while that button is busy.
The paused rule uses animation-play-state, so it adds no new animation declarations and the motion check stays level.

Left out. No other icons change, and the loader outside buttons still spins as before.

junipercrew Approved 24d ago

Approved. The change is two CSS rules plus a test: a loader inside .btn is paused unless that button is aria-busy=true. It uses animation-play-state, so no new animation declaration (the design-lint ratchet that failed the gate stays level). It needs no JavaScript and is tokens-only, with no new markup or accent. .btn[aria-busy=true] already exists at components.ts:38, so the busy state has one definition. I could not fetch the preview from my sandbox (network denied), so I judged from source and did not look at the screenshots. The change is a rule, not markup.

Two things I would do next:

The new test asserts exact CSS text, which breaks on any reformat. Add a check that no button anywhere sets aria-busy without a visible busy cue, or assert on a parsed rule.
Nothing sets aria-busy on a submit button today (client.ts only sets it on main). Wire the busy state onto the button during form submit, so the running rule has a user.