The layout audit only reported boxes that overflow their container; text
that fits perfectly but is painted over by a later sibling or overlay was
never caught. Add a text_occluded check that sweeps a grid across each text
box (three rows x nine columns) and, via elementFromPoint, flags text whose
topmost element is an unrelated opaque element (raster content, background
image, or a solid background at near-full opacity). Low-opacity overlays
such as scrims and grain are exempt. Opt out of intentional layering with
data-layout-allow-occlusion.
The two *.browser.js audit scripts are added to the fallow entry list: they
are injected by path via page.addScriptTag, so they have no import-graph
referrer.
Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
The layout audit compares each element against its container, so two text
blocks that collide with each other — neither overflowing its own box —
render unreadable yet pass clean. Add a content_overlap check that pairs up
the solid text blocks and reports any two whose boxes intersect by more than
a fifth of the smaller box. Watermark-style text (low colour alpha) is
decorative and exempt; opt out of intentional stacking with
data-layout-allow-overlap.
Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
* feat(cli): add --at-transitions to inspect for sampling at tween boundaries
Even spacing samples are structurally blind to sub-second overlap
windows at transition seams - a 0.2s caption collision slips between
samples by construction (#1380). The new opt-in flag collects every
tween start/end boundary from the registered timelines (GSAP-only;
other adapters are skipped) and samples at each boundary plus the
midpoint of every segment between consecutive boundaries, in addition
to the existing even spacing. Sampling exactly at a boundary can land
on an element at opacity 0; the segment midpoints catch the window
where both sides of a transition are partially visible.
Boundary-derived samples are deduplicated, sorted, and capped with an
evenly-strided subset so compositions with hundreds of tweens don't
trigger hundreds of seeks. Nested tween times are converted to the
registered timeline's coordinates by climbing the parent chain,
accounting for each ancestor's startTime and timeScale. The JSON
output gains a transitionSamples field when the flag is on.
Fixes#1380
* fix(cli): sample every transition boundary by default; cap only on explicit request
Review follow-up on #1386: the silent cap of 40 contradicted the flag's
promise - on a dense timeline the strided subset could skip the exact
short boundary window the mode exists to catch, with no indication that
samples were omitted.
--at-transitions now samples every collected boundary by default. The
cap only applies when the new --max-transition-samples flag is passed,
and when it truncates, the omitted count is reported both as a console
warning and as transitionSamplesDropped in the JSON output.
