Two halves of one inversion in the expanded timeline lanes: the tweens
that should show were filtered out, and a tween that should not be there
was the only survivor.
Lane classification read the parser's whole-tween verdict, which is
undefined for anything spanning more than one property group. `{x,
opacity}` is the canonical HyperFrames entrance tween, so five of the
seven tweens in the swiss-grid graphics example had no caret, no
reserved row and no diamonds. Classify per property instead, through one
helper both the rendered lanes and the reserved row heights count
through so they cannot drift again.
Attribution matched an unanchored leading id, so `#stat3 .block` was
filed under `#stat3`. The child's diamonds landed on its ancestor and
collided with the ancestor's own tween at the shared percentage, which
the same-percentage merge then resolved by dropping the ease. Route
attribution through resolveSelectorElementIds, which anchors a
whole-selector id and otherwise resolves through the live preview DOM,
and anchor its no-DOM fallback so a descendant selector resolves to
nothing rather than to its ancestor. The merge rule is unchanged.
Also brings the last property-lane call site onto the shared clip timing
basis: an expanded sub-composition child's start is host-absolute while
its tweens are local to its own file.
A sub-composition tween's resolvedStart is composition-local, while the timeline
element resolved for it is the sub-comp HOST, whose start is main-timeline
absolute. toClipPercentage subtracted the two frames from each other, so a host
mounted at 1.5s cached its 0s tween at -12% and its last tween's end keyframe at
88% instead of 100%. A clip-relative percentage can never be negative.
resolveClipTimingBasis now returns the clip start in the frame the tween's own
times are measured in: the composition mount (expandedParentStart for an
expanded child, the parent composition clip's start otherwise, 0 for a
root-composition element) is subtracted, and a sub-comp inner element that falls
back to its host's window starts at 0 in that window. It moves to gsapShared so
the post-commit cache writer can share it instead of resolving its own basis,
which also gives that writer the sub-comp host fallback it was missing.
Selector reads now go through one inverse of `idSelector`. Every writer emits
`[id="01-hook-hero"]` for an id a `#id` selector can't address, but the readers
still matched `#id` only, so the post-commit keyframe-cache refresh, the AST
load and the remove-all-keyframes clear all silently skipped exactly the ids
`idSelector` was added to support.
A keyframe merged from two tweens with different eases kept whichever ease
iterated last. Readers that don't check `easeAmbiguous` showed a curve from a
different animation than an edit would target, so the ambiguous flag now clears
`ease` instead of leaving an arbitrary one behind.
One tolerance for "the playhead is on this keyframe". The motion-path drag used
0.05% while the toolbar and the playhead apply used 1%, so a drag that landed a
fraction of a percent off an authored waypoint skipped the update-point branch
and appended a near-duplicate. `buildTemporalArcKeyframes` now owns the
invariant and replaces any keyframe inside the tolerance, rather than trusting
each caller's own pre-check.
The pending-retime bookkeeping matches on keyframe identity, not just on
"something is near that percentage" — an evenly spaced row cleared the entry off
an unrelated sibling. The neighbour clamp composes pending destinations in
before sorting, so a second drag can't cross a neighbour that already moved.
Also: `keyframeCache`/`gsapAnimations` setters return the same state for a write
that changes nothing (every no-op re-rendered every subscriber), the auto-expand
set drops clips that left the source so an undo/paste under the same id expands
again, `invalidateGsapCache` has a stable identity instead of re-creating the
whole timeline edit context each render, the studio test hook deletes its window
key rather than leaving it enumerable as undefined, and the past-last-row
extrapolation documents why it uses TRACK_H where the pre-first-row branch uses
row 0's own height.
Covers `idFromSelector` round-trips, the insert boundary band across plain,
expanded and unusable row heights, and the collapsed selection key for a
colon-bearing element id.
Validate the parse response before reading `.animations` instead of casting
the JSON blind, and narrow the fetch's return type to the slice callers read.
Route the AST cache load through the shared clip-keyframe and cache-key
helpers so it can't drift from the other writer. Drop the unused numeric
track-count branches from `trackHeights`/`getTimelineCanvasHeight`, and pick
the widest keyframed clip with a reduce so there's no index assertion.
Carries the gsapAnimations/keyframeCache symmetry fix into the extracted
AST loader: an ungrouped tween now lands in both stores, so the collapsed
row and the expanded lanes agree on what a clip animates.
The keyframe cache was fetched for a single source file: the selected
element's, else the active composition. On open nothing is selected, so
a project whose clips live in sub-compositions loaded only index.html
and every property lane rendered empty until a clip was clicked.
Load the cache for each composition file the timeline has rows for, so
keyframed clips are expanded on open as intended. The AST load path
moves to keyframeCacheAstLoad.ts to keep useGsapTweenCache.ts under the
600-line cap.
Miguel Angel Simon Sierra