Commit Graph
12 Commits
Author SHA1 Message Date
Miguel Angel Simon Sierra f04cdb79c5 fix(studio): never re-author a target the DOM proved is not unique
writeTargetSelector returned the selection's bare selector whenever the
structural walk failed, including when a live DOM was there to check
against. An element detached between selecting and committing takes that
path, so the add re-authored the exact `.group` string the function exists
to replace. Return null instead: a failed walk against a live DOM is
evidence, not absence of it. Callers that cannot drop a user edit opt back
in with `?? selectorFromSelection` where the trade is visible.

The replace-with-keyframes paths had the mirror defect. The server deletes
and re-adds the tween, so their target string is a full rewrite, and they
derived it from the selection: promoting a set on a tween already narrowed
to `#scene > div:nth-child(3)` widened it back onto every class sibling,
undoing the narrowing an earlier add had made. They now keep the tween's
own authored target, matching what eight sibling commit modules already do.
2026-07-28 20:37:52 +02:00
Miguel Angel Simon Sierra fd5555be75 fix(studio): target one element when adding a keyframe at the playhead
"Add keyframe at playhead" on an element with no id authored the bare class
buildStableSelector hands back, so one add on a `.group` wrote
`tl.to(".group", ...)`: a tween that animates all five siblings and that
resolveSelectorElementIds reads back as all five, collapsing their timeline
rows into one. It survived a reload, so the written file stayed un-editable.

writeTargetSelector is the write-side counterpart to selectorFromSelection
(which must keep returning the exact string findTweenAtTime compares against).
It resolves the element's own identity to a selector that addresses exactly
one element: `#id`, else `[data-hf-id="..."]`, else the selection's selector
when it is already unique, else a `:nth-child` path anchored on the nearest
identifiable ancestor (the selector + selectorIndex pair, resolved through the
DOM the index was counted in).

Applied to the two paths that author a NEW tween: the no-animation branch of
useEnableKeyframes and commitKeyframeAtTimeImpl. replace-with-keyframes still
writes the selection's own selector, since retargeting a tween the author
aimed at a whole group is a different decision from adding a keyframe.
2026-07-28 20:37:52 +02:00
Miguel Angel Simon Sierra b8ff8bf0f3 fix(studio): close the review findings that survived the stack
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.
2026-07-28 00:40:46 +02:00
Miguel Angel Simon Sierra 62e866eda6 fix(studio): span the clip on the remaining duration-less tween paths
Two sibling call paths still answered from GSAP's 0.5s default while the
toggle path had moved to the clip-wide fallback.

isPlayheadWithinTween now takes the selection, so the toolbar stops
promising "extends animation" on a duration-less tween whose click actually
toggles an interior keyframe. The arc drag commit resolves its replacement
duration the same way its click-path sibling does, instead of authoring
duration 0.5 and collapsing the arc window.

The flat text section drops its two marker-clearing effects: the autofocus
marker is a ref now, read and cleared by the render that consumes it.
2026-07-28 00:13:46 +02:00
Miguel Angel Simon Sierra d57039882f fix(studio): harden keyframe editing semantics 2026-07-28 00:13:46 +02:00
Miguel Ángelandukimsanov df29fa7a5e feat(studio): revamps Studio + improves code quality (#2291)
* feat(studio): glue API coexistence layer for the NLE swap

What: extends 21 glue files so the OLD timeline/canvas engine and the NEW
NLE components type-check side by side: playerStore (multi-select setters,
zoom pin, snap toggle, non-reactive scale scratch), drag-state types gain
optional NLE fields, timelineLayout/timelineAssetDrop/timelineEditingHelpers/
timelineEditing/timelineElementHelpers/studioHelpers/assetHelpers gain the
NLE exports, DomEditOverlay + gestures + AssetContextMenu + Timeline props
gain optional callbacks/params, contexts gain *Optional hooks, and
TimelineEditCallbacks.onMoveElements becomes a bivariant method accepting
both engines' change shapes. patchDocumentRootDuration's test rides along.

Why: this is the keystone that dissolves the old "welded glue" problem —
every symbol the NLE components need is ADDED next to what the old engine
still uses, so the engine components and the swaps can land as separate
reviewable PRs.

How: 15 authored intermediate files (main content + additive symbols; no
behavior changes — new fields optional, new callbacks unused until wired)
plus 6 files whose final content is already purely additive. New exports
without consumers yet carry TEMP(studio-dnd) ignoreExports entries, removed
by the app-shell swap.

Test plan: tsc --noEmit in studio + studio-server (verifies BOTH engines
compile); bunx vitest run (full suite green incl. the 6 new
patchDocumentRootDuration tests); fallow audit clean.

* feat(studio): timeline interaction hooks and lanes component (unwired)

What: the timeline-side wiring layer, unwired: TimelineLanes (the lane
renderer driving drag/resize/marquee), timelineMarquee (+tests),
useTimelineStackingSync, useTimelineGeometry, useTimelineEditPinning,
useTimelineEditingDrops.

Why: everything between the pure drag math and <Timeline> itself; the
timeline-glue swap PR then only rewires Timeline/TimelineCanvas onto these.

How: new files, tsc-clean against the coexistence layer. Unwired components
carry TEMP(studio-dnd) entry registrations, removed at the app-shell swap.

Test plan: bunx vitest run timelineMarquee.test.ts; tsc --noEmit; fallow
audit clean.

* feat(studio): NLE shell assembly (unwired)

What: EditorShell (the full editor layout replacing NLELayout +
StudioPreviewArea), TimelinePane (timeline host with sub-comp rebasing) and
useTimelineEditCallbacks (the callback bag bridging store edits to the
timeline), all unwired.

Why: the shell that App swaps to in the final step; reviewing it standalone
keeps that swap PR small.

How: new files against the coexistence layer; TEMP(studio-dnd) entries
until App mounts EditorShell in the app-shell swap.

Test plan: tsc --noEmit; bunx vitest run (suite unchanged); fallow audit
clean.

* feat(studio): timeline glue swap — Timeline/TimelineCanvas onto the NLE engine

What: flips the timeline glue to its final form (23 files): Timeline and
TimelineCanvas rebuilt on TimelineLanes/TimelineOverlays, useTimelineClipDrag
drives preview/commit through the new drag engine, range selection goes
multi-select, playback loop moves to useTimelinePlayerLoop. Deletes the 9
old-engine files this orphans (group drag, marquee selection, snap targets,
layer gutter, selection overlays + their suites) — each is compile- or
gate-forced by this swap, verified by probe.

Why: second swap step; timeline-only, canvas and App untouched.

How: modified files to final content + forced deletions.
playerStore/timelineEditing/timelineCallbacks stay at their coexistence
form until the app swap (the old App still runs on them).

Test plan: tsc --noEmit; bunx vitest run (full suite); fallow audit clean.

* feat(studio): clip thumbnail modules

What: ImageThumbnail (+tests) and thumbnailUtils (+tests) — frame decode
with SVG/AVIF format fallbacks and rounded-corner clipping — plus
VideoThumbnail updates.

Why: the decode layer for timeline clip thumbnails, ahead of the visual
refresh that renders them.

How: new modules + one modified file; purely presentational.

Test plan: bunx vitest run on both test files; tsc --noEmit; fallow audit
clean.

* feat(studio): assets/blocks panel behaviors + preview helpers

What: blocks tab install flow, right-panel and global drag-overlay polish,
music beat analysis and clip-content rendering hooks, and the
preview-helper utilities backing asset preview.

Why: completes the studio NLE stack on top of the visual refresh.

How: modified files only (kept as one PR: splitting further would produce
sub-150-LOC fragments of interdependent panel glue).

Test plan: bunx vitest run studioPreviewHelpers/studioUrlState suites; tsc
--noEmit; fallow audit clean.

* fix(studio): restore timeline playback loop

* fix(studio): restore missing GSAP helpers module

* refactor(studio): split timeline GSAP helpers

* style(studio): keep timeline helper under size limit

* fix(studio): restore timeline overlays module

* fix(studio): remove stale GSAP import

* fix(studio): restore canonical timeline dependencies

* style(studio): format restored timeline helpers

* style(studio): satisfy helper line limit

* fix(studio): repair rebuilt timeline integration

* feat(studio): complete rebuilt NLE cutover

* fix(studio): guard project and timeline race boundaries

* fix(studio): preserve graded resize and crop geometry

* fix(studio): log resize/rotate commit failures, move anchor accumulator to resize-local

* fix(studio): treat duration-0 tweens as static holds and settle resize position before persist

Instant holds (to()/fromTo() with duration 0) were classified as animated
tweens by every commit route, so resizing or rotating them converted the
hold into a corrupt duration-0 keyframes tween (new value at 0%, old at
100%) that GSAP drops; panel edits appended a losing set. A shared
isInstantHold() now routes them through the static replace-in-place path,
and percentage math guards zero-duration windows.

Separately, anchored-corner resizes painted 3-5 frames at the new size but
old position while the offset persist round-tripped the server. The commit
path now applies the corrected GSAP position synchronously before awaiting
the offset persist, mirroring the scale route's settle.

* feat(studio): gesture-transaction seam with commit observability

Introduce runGestureTransaction — one owner for a gesture commit's
settle -> persist -> record lifecycle. It settles the live DOM
synchronously before any async persist, folds every mutation into one
undo entry via a per-transaction coalesceKey, restores pre-gesture state
exactly once on failure, and asserts (dev console) + reports (PostHog:
commit_transaction / commit_invariant_violation / commit_transaction_failed)
that a persist never changes pixels. The box-size resize path is migrated
onto it; the ad hoc per-route coalesceKey/reload handling is removed.

Extract the resize draft-rect math into resizeDraft.ts to keep the
gesture-handler file under the size cap.

Also: keep url_hash telemetry to the route slug only (drop the query
string, which carried the user's selected element id/selector), and gate
the [hf-resize] diagnostics behind localStorage hf-resize-debug so they
ship as opt-in tracing rather than console noise.

* fix(studio): transaction owns the undo label

The coalesced history entry took the last sub-mutation's label, so a
resize surfaced as "Move layer" (the offset persist) in undo/redo. The
seam now stamps tx.label on every wrapped mutation, so the folded entry
reads as the gesture.

* fix(studio): atomic static size/position commits (no data loss)

Static resize/position holds updated an existing set via delete+add — two
undo entries, and a delete that succeeded before a failed add lost the
hold on disk. Use one in-place update-properties mutation when a set
exists (one undo entry, no partial-failure window). The keyframed-hold
heal that can't be expressed as a property update now adds before it
deletes, so any single failure leaves a recoverable duplicate, never a
lost hold. Transaction-owned commits are tracked via a WeakSet so the
heal path never double-wraps an already-wrapped gesture.

* fix(core): restore timed-clip visibility after a forced timeline rebind

__hfForceTimelineRebind force-rendered the re-registered timeline but never
re-ran the per-[data-start] visibility pass, so after undo or soft reload
every clip rendered regardless of its time window until a full page reload.
Extract the visibility loop into syncTimedElementVisibility and call it from
both syncMediaForCurrentState (unchanged) and the rebind.

* fix(studio): atomic z-order/keyframe/split commits, one undo entry each

Three edit-commit paths hardened onto the one-transaction invariant:

- Z-order reorder (useElementLifecycleOps): N per-element writes now fold
  into one undo entry (coalesceMs Infinity) and, on a failed persist,
  restore already-written files to disk so no partial reorder survives.
- Enable-keyframes (useEnableKeyframes/useGsapKeyframeOps): the intermediate
  convert phase no longer full-reloads the preview (skipReload), killing the
  black-flash remount; convert + edit share one coalesce key = one undo entry.
- Razor split-all (useRazorSplit): snapshot before the batch and restore on
  any failure, so a mid-batch error never leaves un-revertable partial splits.

Shared file-history helpers (RecordEditInput, DomEditCommitBaseParams,
readProjectFileContent, restoreFilesToOriginal) dedupe the rollback/commit
logic across these paths. Commit options thread as one partial object rather
than field-by-field. Test setup extracted into colocated helpers.

* fix(studio): fold multi-step edits into one undo entry; guard text revert

- Gesture recording (useGestureCommit): the per-property-group commits now
  share one coalesce key and only the last reloads, so a recording is one
  undo entry and one preview reload instead of up to four.
- Delete selected keyframes (deleteSelectedKeyframes, split out of
  timelineEditingHelpers): N removals fold into one coalesced undo entry
  with a single reload.
- Text-field commit (useDomEditTextCommits): commitDomTextFields now uses
  the same version-guarded revert as handleDomTextCommit, so a stale failed
  commit can no longer stomp a newer successful one.

* feat(studio): batch a gesture's mutations into one atomic server write

A transaction that emits N mutations previously did N sequential POSTs,
each rewriting the file and soft-reloading — the root of the multi-phase
persist window. Add a gsap-mutations-batch endpoint that validates every
mutation up front, applies them in one in-memory rewrite chain, and writes
the file once (all-or-nothing: an invalid entry rejects the whole batch,
no partial write). The seam buffers a transaction's commits and, when more
than one targets the same file, dispatches a single batch — one write, one
history entry, one reload. The batch capability rides on the existing
commit-function reference; no option fields are threaded through callers.

* fix(studio): soften off-canvas indicator outline to 30% opacity

The dashed off-canvas selection outline at 60% was noisy with many
protruding elements on screen; drop the resting opacity to 30% (hover
still restores full opacity so it stays discoverable).

* fix(studio): drop off-canvas indicator outline to 10% opacity

Follow-up to the 30% softening — 10% resting opacity reads much calmer
with many protruding elements; hover still restores full opacity.

* fix(studio): gate [hf-commit] console traces to dev only

The start/settled/persisted/restore lifecycle traces logged on every
gesture commit in all environments — console noise for end users. Route
them through a dev-only traceCommit helper (matching the pixel-violation
error's existing DEV gate). The commit_* PostHog events stay always on;
they are the production observability, the console lines are a dev aid.

* fix(studio): count actual reloads, not softReload requests, in commit telemetry

A resize's size and offset persists both request softReload; the seam
counted each request, so a batched gesture reported reload_count 2 even
though the batch is one write and one reload. Compute the count from what
dispatchBufferedCommits actually did — one for a batch, the request count
for the sequential fallback.

* fix(studio): rotate hover + off-canvas overlays with the element; flicker-free crop

- Hover overlay applied the element's rotation only to the selection chrome,
  not the hover box; it now rotates about center like the selection, via a
  shared orientedGroupAwareOverlayRect router (one owner for rotation-aware
  overlay geometry across hover/selection/off-canvas).
- Off-canvas indicator was axis-aligned; it now rotates with the element and
  inverse-rotates the canvas-exclusion clip into the element's local frame,
  so the protruding-sliver clip stays correct for rotated elements.
- Crop commit re-lifted the element only in the commit's .then(), so one
  frame painted the cropped state (the flicker). Re-lift synchronously right
  after onStyleCommit (which applies the clip before its first await), so the
  cropped state never paints; the persisted file value is unchanged.

* fix(studio): address code-review findings across the commit-hardening campaign

Correctness (would ship green, bite under latency):
- Enable-keyframes phase 2 now carries coalesceMs: Infinity, so the convert
  folds into one undo entry instead of splitting past the 300ms default.
- The SDK keyframe persist path forwards coalesceMs (CutoverOptions gains the
  field); multi-keyframe delete and convert coalesce correctly when SDK-routed.
- Razor split-all's rollback is guarded so a failing restore can't swallow the
  error toast that tells the user the split failed.

Simplification (single source of truth / no dead flexibility):
- Decompose resolveResizeDraftRect (drops a fallow-ignore suppression).
- Delegate the third readProjectFileContent copy to the shared helper.
- Inline setPatchFromUpdateProperties (its only caller passes one mutation).
- One toSdkPersistOptions translates gesture overrides to SDK options.
- Bundle the reorder-rollback deps into one object (was 7-9 positional args).
- Dedupe the 'last group reloads' ternary; type gesture options as
  CommitMutationOptions; drop a Map+array wrapper around a single write.

* feat(studio): atomic z-order reorder via batch patch-element endpoint

Z-order reorder issued N per-element inline-style patches (one server
write each), so a mid-chain failure could leave a partial reorder on disk.
Add a patch-elements-batch endpoint that validates every patch, folds them
over the file in one in-memory rewrite, and writes once (all-or-nothing;
unsafe input rejects with no write). The reorder now sends one batch per
source file and records one undo entry. Because a failed atomic write
persists nothing, the interim disk-write-back rollback (restoreReorderedFile
/ restoreFulfilledReorderFiles / ReorderRollbackDeps) is deleted — failure
rolls back only live DOM/store state. Closes the last disk-atomicity gap.

* fix(studio): razor-split undo no longer silently no-ops

The split clone was written to disk without a data-hf-id, so the split
endpoint recorded that unstamped HTML as the undo entry's afterHash. The
next reloadPreview() ran the preview route's ensureHfIds write-back, which
minted a fresh id and persisted DIFFERENT bytes — so at undo time the disk
hash no longer matched afterHash and editHistory's content-mismatch guard
silently refused the undo (no write, no network, no error). Stamp the split
output via ensureHfIds in splitElementInHtml before it is written/returned,
so the preview write-back is a no-op and the recorded afterHash always
equals the final on-disk bytes. Fixes at the source rather than relaxing the
mismatch guard. Corrects the stale comment that credited forceReloadSdkSession.

* feat(studio): closed-hand grab cursor on the rotate handle

The rotate handle used the default arrow cursor; show a grabbing
(closed-hand) cursor on hover to signal it's grabbed and dragged to rotate.

* fix(studio): dropping a dragged element over another no longer selects it

A moved drag's release fired the box click, which re-selected whatever now
sat under the pointer via the hover cache — so dropping an element over a
higher-z one selected the drop target instead of keeping the dragged
element selected. The drag-move branch now suppresses the next box click,
mirroring the resize branch.

* fix(studio): group drag is one undo entry, not one per element

Dragging a multi-selected group committed each member's position write as
its own undo entry, so reverting took N Cmd+Z presses. Force a shared
coalesceKey (infinite window) across every member's commit so they fold
into a single undo entry, like the other multi-step commit paths.

* fix(studio): undo of a split no longer leaves a ghost clip in the timeline

The file and the composition iframe revert correctly on undo, but the
timeline panel kept a ghost node for the split clone. The element-merge
that repopulates the timeline preserves elements the fresh scan dropped —
intended for enriched sub-composition children a bare DOM re-scan misses,
but it also preserved a genuinely-removed TOP-LEVEL element (the split
clone after undo), leaving a phantom clip. Restrict the preserve to
elements with a compositionSrc (the enriched sub-comp children); a
top-level element missing from the fresh scan was truly removed.

---------

Co-authored-by: ukimsanov <ular.kimsanov@heygen.com>
2026-07-13 02:55:36 -04:00
Miguel Ángel 2d3b19d255 fix(studio): keyframe commit routing for 3D and cross-group edits (#1762)
- pickBestAnimation is group-aware: a rotation/3D edit no longer merges into a
  position tween — a fresh same-group tween with a 0% baseline is created instead
- editing at a playhead past the tween extends it and keyframes there (matches drag)
- update-keyframe MERGES into the existing keyframe instead of overwriting, so
  editing one property no longer drops z/transformPerspective (the lens then
  animated from 0 and the element popped)
- dragging a keyframed element with a constant position tween keyframes rather
  than writing a static set
2026-06-27 11:32:43 -04:00
Miguel Ángel 226a741c9d fix(studio): Enable keyframes works (and auto-tracks) on elements with a global gsap.set (#1728)
* fix(core): a global gsap.set is off-timeline, so resolvedStart is 0 not the comp end

resolveTimelinePositions walks anims in document order advancing a cursor; a
global `gsap.set(...)` carries no position arg, so it fell through to the
cursor fallback and inherited the comp-end time (every prior tween's duration
summed) as its resolvedStart. A global set is a load-time hold — its start is 0.

This silently broke 'Enable keyframes' on any element whose only animation is a
global gsap.set (e.g. a statically-positioned card): promoteSetToKeyframes bails
when `playhead <= setStart`, and setStart was the comp end, so any playhead
before the end was a no-op. Pin a global set to resolvedStart 0 in both the
recast and acorn parsers; don't let it advance the cursor/prevStart.

* fix(studio): Enable-keyframes marks the generated 0% endpoint as auto-tracking

When 'Enable keyframes' promotes a static set to a two-stop tween, the 0% (the
held start the user didn't choose) is now marked `auto: true` → serialized as the
`_auto: 1` marker. The parser's endpoint-sync then keeps it tracking the nearest
keyframe until the user edits it directly; the 100% (the real keyframe placed at
the playhead) stays fixed.

This re-wires the auto-endpoint behavior that was silently dropped in #1605 (the
sync logic stayed, but no flow produced an `_auto` endpoint anymore, so an
untouched 0% never tracked). Adds a guard test so it can't be lost again.

* chore: suppress fallow complexity findings surfaced in the touched files

The resolveTimelinePositions guard added a branch (pushes it over threshold), and
changed-file scope re-surfaces pre-existing complex functions (readElementPosition,
applyArcWaypointAtPlayhead, the useEnableKeyframes callback). Bare directives only.

* fix(studio): dragging a --hf-studio-offset element no longer flies

Dragging a static element positioned via the legacy --hf-studio-offset CSS var
(e.g. dot-a) flew off-screen — three independent failure modes, all fixed:

1. Live drag integrated: the per-move draft read its base from the live transform
   it set last frame (gsap.getProperty), so base+delta accumulated frame-over-frame.
   Fix: carry a stable baseGsap on the in-memory drag member (immune to mid-drag
   re-renders that wipe the data-hf-drag-* attrs) and use it as the fallback.

2. Commit re-added the delta: the source commit re-read the wiped attrs / live
   transform. Fix: re-stamp the stable base/initial attrs in applyManualOffsetDragCommit
   before the commit reads them.

3. Drop left it offset: the committed source was correct, but the LIVE element kept
   its --hf-studio-offset var + translate:var(...), which composed with the GSAP
   transform (rendered at dropped + offset) until a full reload. Fix: on cleanup,
   when GSAP owns the position, clearStudioPathOffset() migrates the element off the
   legacy CSS channel (leaving transform untouched) — matching the stripped source.

Adds a regression suite covering all three layers.
2026-06-25 21:31:23 -04:00
Miguel Ángel 091137e3c3 feat(studio): instant, flicker-free manual editing (#1605)
* chore(producer): shim __filename/__dirname in the CJS banner

Bundled CJS deps like wawoff2 call __dirname; without the shim they throw
"__dirname is not defined in ES module" at render time. Also ignore .zed/.

* chore(producer): use a template literal for the CJS banner (review nit)

* feat(core): add GSAP keyframe + motion-path source mutations

Array-form keyframe removal in both the recast and acorn writers, plus
update/add/remove-motion-path-point and add-motion-path. Exclude _auto and
data from tween property-group classification.

* fix(core): address #1554 review — data-exclusion test, split-fix doc, motion-path sentinel, parity blocks

- Regression test for the `data` GSAP-key exclusion (parallel to _auto).
- splitAnimationsInScript: documented that .fromTo()/.to() correctly stay out of the
  from-branch (only .from() reverts) and the <= boundary; added mid-flight straddle tests.
- addMotionPathToScript failure path returns id: null (was empty-string sentinel); caller updated.
- Parity blocks for addKeyframeToScript array-form + updateKeyframeInScript (mirroring
  removeKeyframeFromScript). Surfaced a latent acorn array-form partial-props merge bug —
  documented as it.skip with a ready assertion (acorn cutover follow-up).

* feat(core): route motion-path mutations through studio-api + fix clip stamping

Wire the new mutations into the file save route. Only authored clips suppress
descendant stamping, so auto-stamped animated scenes can inline-expand.

Hide in-flow timed clips with `display:none` only when they are LEAF clips (no
nested timed clips). `display:none` on a container removes its whole subtree,
hiding descendants that are still inside their own visibility window — e.g. an
in-flow composition root whose effective window clamps to the timeline end would
black out a child video that should still show (the hdr-hlg regression).
Containers keep `visibility:hidden`, which a visible descendant can override; only
leaves leave the flow, which is all the split-overlap case needs.

* feat(core): strip legacy path-offset/rotation + drop obsolete studio lint rule

A position or rotation add/set mutation makes the GSAP timeline the single source of
truth for that channel, so any lingering --hf-studio-offset / --hf-studio-rotation CSS
var must be cleared to avoid double-applying. stripStudioEditsFromTarget now clears both
channels, and the add-strip fires for the position AND rotation property groups.

Also removes the obsolete `gsap_studio_edit_blocked` lint rule: it warned that Studio
cannot save drag/resize edits to elements in a registered timeline — the exact premise
the single-source work inverts (the timeline is now the edit target). Removed the rule,
its now-unused TIMELINE_REGISTRY_ASSIGN_PATTERN import, and its 5 tests.

* fix(core): address #1555 review — complete hold-sync, invalidate clip cache, strip rotation channel

- HOLD_SYNC_MUTATION_TYPES: add add-motion-path (load-bearing — addMotionPathToScript
  authors past t=0 → first-frame snap-to-(0,0) without the hold), update-meta,
  shift-positions, scale-positions, split-animations. (add stays out: flat tweens
  only, syncPositionHoldsBeforeKeyframes is a no-op for non-keyframed tweens.)
- init.ts: timedClip in-flow/leaf WeakMaps now invalidate on clipTreeSignature change;
  visible/hidden branches both go through isTimedClipInFlow (was .get() by accident).
- keyframesWriteRotation mirrors keyframesWritePosition so a rotation-only keyframe set
  strips the stale --hf-studio-rotation channel.

* feat(studio): GSAP runtime read layer + shared helpers

* fix(studio): address #1607 review — cold-parse vs fetch-error budgets, isZeroDurationSet, array-ease tests

- useGsapAnimationFetchFallback: discriminate resolved/fetch-error/cold; only the cold
  (warm-but-zero) race gets the full ~600ms retry budget — a hard fetch error retries once.
- Extract isZeroDurationSet (was !(duration>0) duplicated); rejects NaN, documents intent.
- parsePercentageKeyframes: cite GSAP even-index spread; tests that a per-entry/interior
  ease is stripped without shifting the other keyframes' percentages.

* feat(studio): GSAP drag/commit/bridge editing infra

* fix(studio): address #1608 review — facade awaits commit, strict stale-parse guard, clearProps restore

BLOCKER: useSafeGsapCommitMutation now RETURNS the (.catch-chained) commit promise and the
commitMutation facade awaits it — so await session.commitMutation(...) resolves AFTER the
server save, fixing both consumers (useEnableKeyframes + useGestureCommit's
showToast/requestSeek/idle, which were firing before the save landed). SafeGsapCommitMutation
return type widened void→Promise<void> (fire-and-forget consumers ignore it).
- stale-parse guard uses hasNonHoldTweenForElement (a leftover hold set no longer counts as live).
- commitFlatViaKeyframes snapshots dragged gsap values before clearProps + restores after seek,
  so a failed commit leaves the dropped pose, not a cleared element.

* feat(studio): motion-path geometry + commit helpers

* docs(studio): address #1609 review — document occlusion fade-in invariant, donut limit, nearestPointOnPath t-semantics

* feat(studio): on-canvas motion-path overlay

* fix(studio): address #1610 review — scope dblclick to pan-surface, kind-aware geometry guard, gate createMode, screen-space drag threshold

* feat(studio): keyframes flag, gesture recording + timeline/selection refinements

* fix(studio): address #1611 review — fetch-first keyframe path, gated hydration, dev-gated debug + gesture warn, per-group gesture tweens

- useEnableKeyframes: parse current source first (null-vs-[] distinction) so a delete-all's
  empty parse isn't overridden by a stale selectedGsapAnimations cache.
- useStudioUrlState: freeze the hydration effect's time dep once hydrated (was re-running every tick).
- useGestureRecording: dev-gated console.warn when the live-preview runtime throws (was silent).
- playerStore: gate window.__playerStore behind dev (guarded import.meta.env.DEV).
- useGestureCommit: partition recorded keyframes by property group → one add-with-keyframes per
  group, so a mixed gesture no longer yields an untagged legacy tween.

* feat(studio): single-source manual offset + rotation via the GSAP timeline

Dragging or rotating an element writes into the GSAP timeline (the single source of
truth) instead of a parallel --hf-studio-offset / --hf-studio-rotation CSS var: static
elements commit a tl.set (idempotent on re-edit), tweened elements edit keyframes, and
the live preview moves via gsap.set so what you see equals what is written and renders.
Removes the dual-channel CSS-var/transform reconciliation behind the
fling / disappear / runaway / double-stack / wrong-start bug class — for BOTH position
and rotation (gesture base read from the gsap transform, gsap.set live preview, tl.set/
keyframe commit, dropped the handleDom*Commit CSS fallbacks).

Subcompositions edit the same single-source way, which surfaced and fixes:
- resolve a subcomp element's source file via the composition-id map (the runtime drops
  the source linkage when inlining the subcomposition);
- a selected element's selection box AND motion path use basic visibility, not the
  occlusion heuristic (a backgroundless opacity-1 scene above it is not an opaque cover);
- soft reload rebuilds ONLY the committed composition's timeline, leaving other
  compositions' timelines intact (no cross-composition revert);
- read keyframes from the element's OWN composition timeline (scan all timelines, not
  the first unstable key);
- delete-all uses a soft reload too, so editing no longer hard-reloads the iframe.

* fix(studio): address #1567 review — drop drag-intercept flag, harden softReload onerror, tighten runtime ladder, per-group gestures

- DROP STUDIO_GSAP_DRAG_INTERCEPT_ENABLED: single-source GSAP intercept is the only
  position/rotation channel; the false branch silently killed drag+rotate (and let GSAP
  elements into the keyframe-corrupting CSS path). Removed flag + dead branch + env def + tests.
- gsapSoftReload: plugin onerror no longer fakes success — signals onAsyncFailure so the caller
  full-reloads; honors __hfMotionPathPluginLoading so a concurrent reload can't queue a dup script.
- gsapDragCommit: resolveDragRuntime narrows the as-any ladder; a mid-seek throw logs + drops
  partial reads (no phantom identity) and re-applies the drag override in finally.
- MotionPathOverlay: park-timer cleanup keyed on animId change.
- useGestureCommit: partitionKeyframesByGroup wraps the add-with-keyframes sites (per #1611 review).

* feat(studio): patchRuntimeTweenInPlace — update a tween's values in place

Defensive runtime helper: locate the element's tween in window.__timelines via the
shared resolveRuntimeTween scan, update its set/keyframe vars, invalidate, and re-seek
the playhead — without re-running the whole composition. Returns false (caller falls
back to soft reload) for any shape it can't safely patch (no tween, dynamic/computed
keyframes, motionPath arc, channel mismatch, or any error). Foundation for instant,
flicker-free manual edits.

* fix(studio): address #1612 review — channel-aware set resolution + decline dynamic-expression patches

- resolveRuntimeTween gains an optional channels[] hint; for kind:set it prefers the set whose
  vars carry one of the patched channels and never returns a disjoint-only set (e.g. won't write
  {x,y} into a co-located {rotation} set). patchRuntimeTweenInPlace derives channels from the props.
- patchSet declines (returns false → soft reload) when overwriting a string/dynamic vars[ch],
  instead of silently dropping the computed expression.

* feat(studio): instantPatch fast path in runCommit

A commit carrying an instantPatch option tries patchRuntimeTweenInPlace first; on
success the preview updates in place with NO reload (instant), on false it falls back
to the existing soft reload. Extracts the preview-sync tail into a testable
applyPreviewSync helper. No behavior change when instantPatch is absent.

* feat(studio): route static position/rotation set drags through instantPatch

Static-element position and rotation set commits now attach instantPatch{selector,
change:{kind:set}} so the drag updates in place with no reload. Structural ops (new
tween add, delete-all, convert/split/materialize) and keyframe edits deliberately omit
it and keep the soft reload — keyframe instant-patch needs object-form keyframe support
in patchRuntimeTweenInPlace (deferred).

* fix(studio): address #1613 review — derive instantPatch from the mutation, patch both coalesced commits, wire onAsyncFailure

- commitStaticGsapPosition/Rotation derive instantPatch.change.props from the actual
  update-property mutation(s) sent (one source of truth → findUnsafeMutationValues-validated
  values flow into the patch; can't drift).
- Coalesced x/y: the intermediate x commit also carries instantPatch{x}, the y commit {x,y},
  so a second-POST failure still leaves the preview patched for what persisted.
- applyPreviewSync passes reloadPreview as onAsyncFailure (plugin-CDN load error → full reload);
  per U4 the synchronous false still does NOT escalate.
- (channel disambiguation from #1612 verified end-to-end: {x,y}→position set, {rotation}→rotation set.)

* feat(studio): no full iframe remount for soft-reloadable edits

A softReload edit (and the SDK single-script refresh) no longer escalates to a full
reloadPreview() iframe remount when applySoftReload returns false — the live gsap.set
already shows the value, and a remount is the worst flash + re-inlines subcomps
(reverting their keyframes). verifyTimelinesPopulated now checks the expected target
keys the re-run registers, so a correct scoped re-run doesn't spuriously report empty.
Full reload stays only for the structural (no-softReload) and ambiguous-script paths.

* feat(studio): pre-load MotionPathPlugin so motion-path edits don't async-flash

ensureMotionPathPluginLoaded() runs once at the preview iframe-load seam (NLELayout
onIframeLoad), eagerly loading + registering MotionPathPlugin without killing the
timeline. So when a user adds a motion path to a composition that didn't originally
use one, the soft reload runs synchronously instead of taking the kill-then-await-CDN
async path (the flash). Idempotent + defensive; the existing async fallback stays for
genuine cold-start/CDN-failure.

* fix(studio): don't re-save + reload when source editor syncs externally

The SourceEditor's CodeMirror update listener fired onChange on ANY docChanged —
including the programmatic dispatch that syncs external content (e.g. a manual-edit
commit writing the source back into the open editor). That made the editor re-save the
file and bump refreshKey, fully reloading the preview iframe on every drag/keyframe
edit — defeating the in-place instant patch and causing the flash. Annotate the
programmatic sync (ExternalSync) and skip onChange for it, so only real keystrokes save.

* fix(core): inject MotionPathPlugin into preview when a composition uses motionPath

A studio-created motion path writes a gsap motionPath tween into the single-source
timeline, but the preview HTML only loaded gsap core — so the first render threw
"Invalid property motionPath ... Missing plugin?". Detect motionPath usage and inject
MotionPathPlugin right after the composition's gsap script, version-matched to it.

* fix(studio): dedup __hfMotionPathPluginLoading type decl (restack artifact)

* fix(studio): address #1605 review — distinguish soft-reload failure modes + observability, SourceEditor focus guard

BLOCKER: applySoftReload now returns SoftReloadResult ('applied' | 'verify-failed' |
'cannot-soft-reload') instead of a bare bool. applyPreviewSync + sdkRefresh escalate to a full
reloadPreview() on the PERMANENT 'cannot-soft-reload' (no gsap/rebind hook/scopable key/script,
or sync re-run threw) — fixing the silent-stale-preview U4 dropped — but still suppress the
TRANSIENT 'verify-failed' (live gsap.set is correct). Telemetry: gsap_soft_reload_outcome
(origin/result/escalated) + gsap_instant_patch_fallback, so the U4 invariant is enforced, not asserted.
- SourceEditor: skip the programmatic external-sync replace while the editor is focused, so an
  in-flight commit doesn't clobber the user's uncommitted keystrokes (ExternalSync kept for unfocused).
- Verified ensureMotionPathPluginLoaded already guards __hfMotionPathPluginLoading (no double-append).

* fix(core): align __clipTree and __clipManifest ids via stableClipId

Timeline inline expansion was dead for nested children inside index.html:
the tree keyed id-less elements by a synthetic __clip-N while the manifest
keyed them null, so parent<->child never joined. Both now resolve identity
through stableClipId (id || data-hf-id), which every generated element has.

* fix(core): strip baked runtime + tag comp root in preview assembly

Comps that ship a baked inline runtime were double-loaded (preview injects
its own) and the baked copy failed to parse inline (Unexpected token '<').
Strip it in buildSubCompositionHtml + the disk-fallback preview path. Also
tag the comp root with data-composition-file so the studio resolves a comp's
top-level elements to the right source file instead of defaulting to
index.html (which made the GSAP panel parse the wrong, multi-timeline file).

* feat(studio): set motion-path destination from a toolbar toggle

Replaces the double-click-on-canvas UX (which painted text over the preview)
with a 'Set motion destination' toggle next to Snap/Grid, shown only when the
selected element can take a path. While armed, one canvas press places the
destination. Also removes the dead TimelinePropertyRows component.

* fix(studio): center timeline keyframe diamonds on their percentage

Dropped clampDiamondLeft, which forced boundary keyframes fully inside the
clip so a 0% diamond sat half a diamond right of the 0% point. Each diamond's
midpoint now sits exactly on its % (the clip is overflow-visible).

* fix(studio): resize static elements via tl.set, not a single-stop keyframes tween

Resizing an element with no size animation wrote keyframes:{ <playhead%>:
{width,height} } — one mid-point stop GSAP can't interpolate, so it rendered
NaN/0 dimensions at every other frame and the element vanished (worst off 0%).
Added commitStaticGsapSize (mirrors commitStaticGsapPosition): a static resize
now writes tl.set({width,height}), held at all frames; re-resizing updates it
in place.

* fix(studio): negative-cache failed media probes

Only successful probes were cached, so CORS/404 cross-origin media was
re-probed every rAF-driven timeline re-derive, flooding the console. Remember
failed URLs and skip them.

* fix(studio): type window.setTimeout handle as number

ReturnType<typeof window.setTimeout> infers NodeJS.Timeout when @types/node is
present and clashes with the DOM number the call returns. Type it number.

* fix(studio): drag/resize disappearance, stale-ID duplicates, soft-reload clearProps

- Fix soft-reload clearProps destroying element inline styles — save cssText,
  clear, restore, strip only transform
- Fix resize no-op on re-resize: delete+add instead of two update-property
- Route set tweens through static resize path (convertToKeyframes skips sets)
- Re-fetch animation ID before drag commit to prevent stale-ID duplicates
- Guard editDebugLog for Node test environments
- Fix NLELayout setState-during-render (move reset to useEffect)
- Stop SnapToolbar pointer events propagating to canvas deselect handler
- Enable click-to-add waypoints on cubic motion paths
- Add whole-path drag offset (Alt+drag shifts all keyframes together)
- Add Canvas shortcuts section to ShortcutsPanel
- Extract useMotionPathData + commitGsapPositionFromDrag (filesize compliance)
- Delete dead code (getElementDepth, isElementVisibleInPreview, unused exports)
2026-06-22 01:21:18 -04:00
Miguel ÁngelandMiguel Ángel 7bff49ecf0 refactor(studio): simplify hooks, split contexts, remove dead code (#1416)
* fix(studio): guard Zustand no-op setters and fix useConsoleErrorCapture memory leak

- Guard setIsPlaying to skip set() when value unchanged (eliminates 60
  notifications/sec during reverse playback)
- Guard caption store selectGroup to bail before set() when group missing
  (prevents empty Zustand notifications)
- Guard clearSelection to skip when already empty
- Fix useConsoleErrorCapture: restore original console.error, remove error
  event listener, and delete __hfErrorCapture flag on cleanup

* fix(studio): delete dead files and unused exports

Remove 7 dead files (audioBeatDetection, keyframeSnapping,
timelineInspector, DopesheetStrip, StaggerControls,
TimelineLayerPanel, TimelineEditorNotice) and their test companions.

Delete unused computeFitToChildrenSize export from propertyPanelHelpers.

Fix re-export indirection: useDomEditCommits and studioMotionOps.test
now import patch builders directly from manualEditsDomPatches instead
of the re-export passthrough in manualEditsDom.

* fix(studio): eliminate effect-chain state mirroring for lint findings, hover, and GSAP fetch

Move lint findingsByElement sync from App.tsx into useLintModal where
the value is produced, removing the mirroring useEffect. Consolidate
4 hover-clearing effects in useDomSelection into 2 (one unconditional
on context change, one conditional combining caption mode, selection
match, and disconnected element checks). Fold the GSAP retry effect
into the fetch effect in useGsapTweenCache, scheduling a single retry
via setTimeout when the initial fetch returns 0 animations.

Eliminates 3 unnecessary render cycles from effect chains.

* fix(studio): memoize renderQueue, toolbar, and canvas rect to prevent re-render cascade

- Wrap renderQueue object in useMemo so StudioContext consumers don't
  re-render on every App render
- Memoize timelineToolbar JSX so NLELayout memo isn't defeated
- Move canvasRect getBoundingClientRect() from render-time IIFE to a
  useLayoutEffect-backed ref, eliminating layout thrashing
- Track and clear setTimeout handles in refreshPreviewDocumentVersion
  to prevent stale timer accumulation on rapid calls and unmount

* refactor(studio): consolidate GSAP shared primitives — defaults, iframe access, keyframe parsing

Extract duplicated PROPERTY_DEFAULTS, IframeGsap interface, iframe
accessors (getIframeGsap, queryIframeElement), percentage keyframe
parsing, and toAbsoluteTime into a single gsapShared.ts module.

Removes ~120 lines of copy-pasted logic across 8 hook files, reducing
drift risk between the duplicate implementations.

* fix(studio): remove dead store fields, dead file, duplicate helper, and unsafe assertions

* refactor(studio): deduplicate selector helpers, rounding utils, percentage computation, and iframe access

* fix(studio): split StudioContext into Shell + Playback to prevent cascade re-renders

* refactor(studio): decompose useGsapScriptCommits into focused mutation hooks

* refactor(studio): decompose useFileManager into focused file operation hooks

Extract useFileTree (tree loading, refresh, derived assets/compositions)
and useEditorSave (debounced save with history tracking) from the 508-LOC
useFileManager. The parent hook composes both and retains file I/O,
click-to-source, upload/import, and CRUD — preserving the same public
interface so no consumers change.

* refactor(studio): decompose useDomEditCommits into focused commit hooks

Extract geometry (path offset, box size, rotation) and element lifecycle
(delete, z-index reorder) into useDomGeometryCommits and
useElementLifecycleOps. Parent keeps persistDomEditOperations as core
and composes all sub-hooks — public interface unchanged.

* refactor(studio): simplify useAppHotkeys with declarative command table

* refactor(studio): simplify useAppHotkeys with declarative command table

Replace 15 individual useRef callback refs with a single cbRef object.
Extract keydown dispatch into pure dispatchModifierKey/dispatchPlainKey
functions. Merge duplicate undo/redo logic into shared applyHistory.
Extract cross-origin listener boilerplate into safeAddListener/safeRemoveListener.

Hook body: 204 LOC (down from 445). Public API unchanged.

* fix(studio): remove unused getDomEditTargetKey import

* refactor(studio): decompose useDomEditSession into focused editing hooks

Extract GSAP-aware geometry intercepts (move/resize/rotation) and
animated property commit into useGsapAwareEditing, and selection
wiring, GSAP cache management, preview sync, and selection handlers
into useDomEditWiring. The parent remains a pure composition shell.

* style(studio): fix formatting in 5 files

* fix(studio): trim App.tsx to 598 lines (under 600 limit)

---------

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-13 18:25:11 -04:00
Miguel Ángel 95029e083e fix(studio): per-property-group intercept routing + drag/resize fixes (#1356)
* fix(core): per-property-group keyframe foundations

Add PropertyGroupName type system (position/scale/size/rotation/visual/other),
PROPERTY_GROUPS constant, classifyPropertyGroup/classifyTweenPropertyGroup
functions. Parser generates group-aware animation IDs, resolves position strings
(+=, -=, <, >), uses numeric matching with 2% tolerance, and preserves IDs
across all mutations.

* fix(core): add split-into-property-groups and replace-with-keyframes mutations

Server-side mutations for atomic property-group splitting and keyframe
replacement. Client commitMutation returns early on changed:false instead
of throwing.

* fix(studio): per-property-group intercept routing + drag/resize fixes

Rewire GSAP runtime bridge for property-group routing: drag sends only {x,y}
to position group, resize routes to scale group via data-hf-studio-original-width,
rotation routes to rotation group. Add resolveGroupTween helper, from-extend
with split-first-then-position-only pattern, autoKeyframeEnabled guards,
GSAP base + delta fix in drag draft, cancel-restores-GSAP-x/y from data attrs.
2026-06-12 00:19:13 -04:00
Miguel Ángel a468550f82 feat(studio): keyframe system — parser, runtime, timeline UI, design panel, gesture recording (#1311)
* feat(studio): runtime hooks — global time compiler + keyframe runtime

Add the runtime bridge layer: global time compilation (tween % → clip %),
soft reload after mutations, runtime keyframe preview, and keyframe
commit helper.

* feat(studio): runtime hooks — global time compiler + keyframe runtime

Add the runtime bridge layer: global time compilation (tween % → clip %),
soft reload after mutations, runtime keyframe preview, and keyframe
commit helper.

* feat(studio): keyframe cache + commit hooks

Add hooks for keyframe cache population (tween → clip-relative %),
mutation dispatch, keyframe snapping, and audio beat detection.

* feat(studio): timeline UI — dopesheet diamonds + keyboard nav

Add dopesheet strip with diamond keyframe indicators, timeline property
rows, keyboard navigation (J/Shift+J/Delete/K), and feature gate
(STUDIO_KEYFRAMES_ENABLED defaults to false).

* feat(studio): design panel — arc controls + ease curve + stagger

Add arc path controls (curviness slider, auto-rotate), motion path SVG
overlay, ease curve visualization, stagger controls, and expanded
animation card. Includes border-radius editor dependency from #1217.

* feat(studio): gesture recording core

Add gesture recording engine with RAF sampling, modifier key property
mapping (Shift→rotationXY, Alt→rotation, Cmd→opacity),
Ramer-Douglas-Peucker simplification, and ghost trail SVG overlay.

* fix(studio): keyframe drag + recording bug bash

21 fixes: capture GSAP base at drag start, translate:none before
gsap.set, skip reapplyPathOffsets for GSAP elements, clamp recording
seek, _auto flag for 100% keyframes, overlay flash fix, block edits
during recording.

* feat(studio): keyframe integration wiring + docs

Wire App.tsx recording orchestration, TimelineToolbar K/R buttons,
PropertyPanel per-property diamonds, shortcuts panel, toast
notifications, and keyframes guide documentation. All gated on
STUDIO_KEYFRAMES_ENABLED (default false).
2026-06-09 18:30:23 -04:00