fix(core): register sub-composition timelines after async build + lint rule (#1638)

* fix(core): register sub-composition timelines after async build + lint rule

When a composition builds its GSAP timeline inside document.fonts.ready (or any
async callback), registering window.__timelines[id] BEFORE the build leaves an
EMPTY timeline registered. The runtime's sub-composition readiness gate treats
"key present" as "ready" and nests the child once — an empty timeline gets
nested empty and is never re-nested, so the frame renders blank when used as a
sub-composition.

- registry/blocks/code-{diff,highlight,morph,scroll,typing}: register the
  timeline AFTER the fonts.ready build completes, then call
  window.__hfForceTimelineRebind() to re-nest now that it is populated.
- core lint: add rule gsap_timeline_registered_before_async_build to flag the
  early-registration anti-pattern, with tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(studio): import commitGsapPositionFromDrag from its actual module

The function was split out into gsapDragPositionCommit.ts in #1605, but the
test kept importing it from ./gsapDragCommit, which no longer exports it —
yielding 'is not a function' at runtime. Import from the correct module.

Inherited main breakage (same fix as #1631/#1635); fixes the Test CI check on
this branch independently of merge order.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
WaterrrForever
2026-06-22 22:50:04 +08:00
committed by GitHub
co-authored by Claude Opus 4.8
parent 0e75eb2510
commit 4db708eb4a
7 changed files with 128 additions and 5 deletions
+10 -1
View File
@@ -737,12 +737,21 @@
var root = document.getElementById("root");
window.__timelines = window.__timelines || {};
var tl = gsap.timeline({ paused: true });
window.__timelines["code-typing"] = tl; // register synchronously
// Build inside fonts.ready (glyph metrics must be final), then register.
// Register ONLY after the timeline is fully built: the runtime's
// sub-composition readiness gate treats "key present" as "ready" and
// nests the child once. An empty timeline registered before this build
// would be nested empty and never re-nested → blank render when used as
// a sub-composition. See the contract in engine frameCapture.ts.
document.fonts.ready.then(function () {
tl.from("#editor", { opacity: 0, scale: 0.985, duration: 0.5, ease: "power2.out" }, 0);
buildEffect(tl, surface, spec);
var dur = parseFloat(root.dataset.duration) || tl.duration();
tl.to({}, { duration: dur }, 0); // pad to full composition length
window.__timelines["code-typing"] = tl; // register AFTER setup completes
if (typeof window.__hfForceTimelineRebind === "function") {
window.__hfForceTimelineRebind(); // re-nest now that we are populated
}
});
}