WebKit draws the same button 36x24 where Chromium draws 33x21, so the
literal this pinned failed in CI on a build where nothing was wrong. A
button's box comes from the UA stylesheet when the author sets nothing,
and what each UA sets is its own business.
What must not happen is that *we* set something. So: `min-width` and
`min-height` compute to 0px, the font-size still equals that of a bare
button probed in the same page, and all five boxes are identical --
which is what says the desktop is neither sized context. Checked by
re-introducing the `font-size: inherit` regression, which it catches in
Chromium; the literal form could only be checked by hand.
The model in CLAUDE.md beside the volume rule it qualifies; the
measurements and the four things that cost a cycle each in NOTES.md,
dated. Three of the four are invisible to every assertion in the repo:
a button not inheriting its font, a nested rule out-specifying a later
one, and art whose height is bounded by nothing.
Ten tests, five of which fail on the build before this. The desktop
guard is meant to pass there -- that is its job, and it is the one that
caught a three-pixel regression nothing else could see.
`openTheQueue` moves to the fixtures, because hiding one button failed
ten tests in four files about the back stack and about layout: every
one of them opened the queue by clicking `#queue-button`, and so was
quietly asserting *which* route exists as well as what the queue does.
The route differs by width now and that is the feature.
Two smaller things. The play button is named for its action, so an
exact 'Play' waits out a fixture track -- 11.1s per test, passing by
luck, and it would have failed outright against LONG_TRACK. And the
"nothing playing" case clears the queue itself rather than trusting the
app not to have played anything: `make e2e` runs one long-lived app
across every spec (#168), which is how a deterministic bug first showed
up as a flake.
Shuffle, repeat and the queue button leave the phone's bottom bar.
They are not gone: all three are on the full-screen Now Playing view,
one tap away through the mini player's art, which is the "reachable
only from Now Playing" this issue asks for. #55 is what makes the queue
half safe -- it is a screen with an entry in the back stack now, rather
than a panel with no way out but the button being removed here.
Removing a control is only allowed because it is still reachable, which
is plan 018's matrix promise, so that is what the spec walks rather
than counting buttons. It found that the route did not exist in the
state that matters: `now-playing` renders two branches and the no-track
one had no `.expand` button on its placeholder, so with nothing loaded
there was no way to the full-screen view at all -- and once the queue
button left the bar, no way to the queue. The queue is persisted across
restarts, so "tracks queued, nothing playing" is a state the app
launches into, not a corner.
The favourite stays on the bar and was 18x14px, the smallest control in
the app, against the 48x48 art beside it.
One CSS trap, because it failed silently. The phone block is last in
index.css on purpose -- a media query adds no specificity -- but the
rule it overrides here is written *nested* inside `.bottom-bar`, so it
builds to a descendant selector one class more specific and a bare
`#queue-button` lost to it. Being last is not enough when the thing
above is more specific.
Closes#59
Measured at the reference device's 424x439, every button here was
33x21px -- in the bottom bar and on the full-screen view alike. #56
reports them as "the most important thing in the mobile app and they
are tiny", and that is the number behind it.
The context is a **property, not a media query**, and that is the whole
design. Everywhere else in this app a component states what it drops at
phone width itself, because a media query inside a shadow root is
answered by the viewport and that is the honest signal. Here the two
hosts want different answers at the *same* viewport: on a phone the bar
wants three controls sized for a thumb and now-playing-view wants five,
larger still. So the host says which context and the viewport says
which size band, and neither alone can express it.
Play/pause alone goes above the 44px floor. A row of five identical
squares says every action is equally likely, which is not true of play
-- "large play/pause, adequate prev/next" is the Direction, and a spec
caught that the first version had sized all three the same.
Two things that fail silently:
The desktop bar must not move, and a `<button>` does not inherit its
font from its parent -- the UA stylesheet gives it one. So a generic
`font-size: inherit` is not the no-op it reads as: it took every
desktop control from 33x21 to 36x24. The box rules take a zero fallback
and the font-size rules are scoped to the two contexts that set one.
And the art on now-playing-view overflowed its own box, drawing over
the header above and the title below, because `aspect-ratio: 1` with a
definite width derives a height that nothing bounds -- 60vh bounds the
viewport, not the room left over. `max-height: 100%`. Pre-existing;
found by reading a screenshot, which is the only tier that can see it.
What is left is #172: with the transport at 172px of a 439px screen the
art is a 39px sliver.
Closes#56
logan