Commit Graph
122 Commits
Author SHA1 Message Date
Vance IngallsandClaude Sonnet 5 071dcfe90d feat(studio,core): reach presets and the rack from the timeline
C1: the FX button in the track/group header, and its popover — the
"reach FX from the timeline" entry point, last on purpose because it
targets a group or a single clip, never "a track" (N clips = N chains
is the ill-defined thing the design doc refuses to build).

The button (TimelineFxButton.tsx): renders on group rows and on track
rows holding exactly one audio clip, reading "FX" (or "FX n" once the
target's data-fx-chain has n enabled nodes). A multi-clip ungrouped
audio track gets a pointer instead ("Group these clips to add effects
to all of them" + a Group action) rather than silently hiding the
entry point — reuses B6's exact auto-grouping write
(useAudioGroupCarveAssignment, exposed as onGroupClips) with a minted
group id (mintGroupId, exported from useFxCarveGrouping.ts).

The popover (TimelineFxPopover.tsx, components/editor/): a thin
positioner around FxPresetMenu exactly as the property panel renders
it — same audition contract (useFxAudition), same preset-apply
computation (extracted into useApplyAudioFxPreset.ts's
applyPresetToChain, now shared with propertyPanelFxSection.tsx's own
applyPreset rather than duplicated). Escape closes without
deselecting whatever is behind it; an outside pointerdown dismisses.
Footer's "+ effect"/"Open rack ›" both select the target and hand off
to the property panel (a simplification from the step doc's two
distinct behaviors — remotely toggling the rack's own internal
"adding" state isn't plumbed anywhere, and building that plumbing
would be new UI-state wiring beyond what "reuse existing selection
dispatch" asks for).

Writes, one path per target kind, neither a new persistence mechanism:
- Group: B7/B5's existing onSetAudioGroupAttributeLive/Quiet
  (data-fx-chain, same as data-volume/data-hidden already do).
- Clip: a NEW onSetElementAttributeLive/Quiet pair
  (timelineElementFxAttribute.ts), addressed by the TimelineElement
  itself rather than the current selection. This is the one real
  architectural gap the step doc's assumption didn't survive: the
  property panel's onSetAttributeQuiet closes over domEditSelection,
  so writing a clip that isn't already selected has no synchronous
  path through it. Extracted the shared live-patch-then-persist core
  (persistElementAttribute, timelineEditingHelpers.ts) out of both
  this new path and the existing setAudioGroupAttribute, which the
  fallow duplication gate flagged as a 66-line clone on first pass —
  now a single ~50-line core parameterized by patchLive/readLive, with
  each caller a ~15-line wrapper resolving its own patch target
  (buildPatchTarget({domId}) for a group, buildPatchTarget(element)
  for an arbitrary clip) and live-DOM lookup.

Data plumbing: HfAudioGroup.fxChain (already on the B1 model) mirrored
onto TimelineElement.audioGroupFxChain (timelineDOM.ts's groupInfoFor
cache) and TimelineTrackGroupInfo.fxChain (useTimelineTrackDerivations.ts),
alongside the existing volume/hidden mirrors.

Deferred: the property panel's own rack doesn't (yet) expose a way to
remotely force its add-menu open, so "+ effect" and "Open rack ›"
converge on the same navigation rather than the step doc's two
distinct ones. A grouped multi-clip track (some clips already carry
data-audio-group) gets neither the chain button nor the pointer —
its members' own per-clip FX buttons still work individually, and the
group's own FX button on TimelineGroupHeader covers the group level.

Gates: bun run build clean; packages/studio full suite 4286/4304 (18
pre-existing todo, up from 4276/4294 — 10 new tests, 0 regressions);
new TimelineFxPopover.test.tsx (6) + TimelineFxButton.test.tsx (4)
cover exactly-one-write-per-apply, hover-audition-reverts-on-leave,
Escape-without-deselecting, outside/inside pointerdown dismissal, and
the group-pointer's Group action; oxfmt/oxlint clean on all 22 touched
files; fallow clean (0 new dead-code/unused-export/duplication
findings — the pointer test caught during the first commit attempt).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-20 02:13:20 -07:00
Vance IngallsandClaude Sonnet 5 ba1d807621 feat(studio,core): mute groups, and hear-only-this that cannot reach the export
B5: mute and solo, on groups and tracks (track mute already shipped by A2 —
nothing to build there).

Group mute — persisted as data-hidden on the <hf-audio-group> element itself
(never written onto members, per design doc §2.1's state-restoration
warning). Studio action reuses B7's generic setAudioGroupAttribute
(setQuiet/setLive split) rather than duplicating toggleTimelineTrackHidden's
shape — same one-atomic-patch/one-undo-entry contract, already built for
exactly this purpose. Render: B4 already drops every member of a
data-hidden group (confirmed by a new audioMixer.test.ts case — no
production change needed there). Preview: a dedicated muteGain node
(groupInput -> [fx] -> muteGain -> output -> master) so a mute toggle
never fights scheduleVolumeLane's ramps on the same param — the same
hazard B7's volume fader was split out to avoid. Mid-playback toggles
sync via a new syncAudioGroupMute pass in init.ts (a group carries no
data-start, so it's invisible to the existing visibility-node query).
Members of a muted group render the strikethrough label treatment
(TimelineTrackPlainHeader's isGroupMuted, sourced from
TimelineElement.audioGroupHidden) — display only, no attribute touched.

Solo — "Hear only this": a new session-only store slice (audioSoloSlice,
soloed: ReadonlySet<string> of clip/group ids, never track numbers, never
serialized). Predicate (isAudibleUnderSolo, packages/core/src/audioGroups.ts
so both the store and the preview transport share one definition): an
element is audible while any solo is active only if it or its own group is
soloed. "Siblings, never ancestors" lives in the graph, not the predicate —
solo gain is a per-element stage only; group buses are never attenuated by
solo, so a soloed member's path through its group stays open by
construction. Preview: a dedicated per-element soloGain in
webAudioTransport.ts (parallel to the mute mechanics), pushed via
window.__hf.setAudioSolo — a direct call, not an attribute write, so it
can't ride the visibility-diff path mute uses. media.ts's HTMLMedia
fallback folds the same predicate into its per-tick volume computation
(the same seam A2 used for data-hidden). Half-lit group indicator
(isGroupHalfLitUnderSolo) for "not soloed itself, but a member is".
Exclusive-by-default toggle, ⌘/Ctrl-click to add/remove, TimelineSoloButton
(⌗) beside mute on both track and group headers. Transport-bar banner
("Hearing only <label> — your export is not affected", Clear button) added
in PlayerControls.tsx, reading labels straight off the live preview DOM.

Export-safety, the most important property here: toggling/adding/clearing
solo never calls setAttribute/removeAttribute on any element and never
invokes the project save path (both asserted directly via spies in
audioSoloSlice.test.ts) — solo cannot reach an export by construction, not
by convention.

Also: extracted useHydrateActiveCompPathFromUrl out of App.tsx (a
pre-existing, unrelated effect) to stay under the 600-line filesize cap
after wiring useAudioSoloBridge in; and fixed a circular dependency the
solo-banner wiring introduced (useAudioSoloBridge.ts now imports
usePlayerStore from its concrete module instead of the player/ barrel,
which re-exports PlayerControls.tsx — the barrel path is what closed the
cycle).

Gates: bun run build clean; packages/core full suite 2379/2379; packages/
studio full suite 4276/4294 (18 pre-existing todo); packages/engine
audioMixer.grouping.test.ts 5/5; oxfmt/oxlint clean on all 23 touched
files; fallow clean (0 new circular deps, 0 new filesize/complexity
findings).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-20 02:13:19 -07:00
Vance IngallsandClaude Sonnet 5 a11883e6d1 feat(studio,core): a volume and a living meter on the group row
B7: the group bus strip — droppable, and deliberately minimal per the
casual-user design constraints (groups doc §5): a volume slider, a level
bar that moves with the sound, and the words "Too loud" when it clips. No
dB numbers, no peak-hold readout, no routing row.

Transport (core): groupInput() now routes each group through input -> [FX
chain or dry passthrough] -> output -> master, with one AnalyserNode per
group tapped off `output` (post-FX, so the meter reads what the bus
actually outputs) — fftSize 256, level not spectrum. groupLevel(groupId)
returns RMS-ish level 0..1 + a clipped flag off a reused per-group buffer
(no per-frame allocation), or null when the group is idle/unknown. The
runtime posts group-levels messages only while playing, piggybacking the
existing message channel rather than adding a new poll loop.

Studio: groupLevels.ts is a plain pub-sub store (mirrors liveTime.ts's
shape) fed by useTimelinePlayer's message handler via
parseGroupLevelsMessage; useGroupLevel throttles re-renders to ~33ms.
TimelineGroupBusStrip renders in the group row's own `∿` lane area
(STRIP_H, already sized in B2's row-height pipeline) — drag writes live
via onSetAudioGroupAttributeLive, release commits one undo entry via
onSetAudioGroupAttributeQuiet (packages/studio/src/hooks/
timelineAudioGroupVolume.ts, extracted from timelineTrackVisibility.ts to
stay under the 600-line cap; mirrors FxParamRow's live/commit split).
"Too loud" holds for ~2s after the last clipped block, tracked in the
component, not the transport. volumeByGroup mirrors labelByGroup in
useTimelineTrackDerivations.ts so the strip's slider round-trips the
group's own data-volume.

Fixed two pre-existing group-routing tests in webAudioTransport.test.ts
that hardcoded gain-node creation order/count — B7 inserts an extra
`output` gain node between the group's input and master (for the meter to
tap), which shifted node indices the tests asserted on directly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-20 02:12:22 -07:00
Vance IngallsandClaude Sonnet 5 1abad17650 feat(studio,lint): carve targets voiceover groups — always, when plural
Plural voiceover carve now targets a group instead of naming each clip:
`resolveCarveSourceIds` (core `audioGroups.ts`) expands a group id to its
current members at analysis time, so a clip added to the group later is
covered without touching `sources`. The picker (`useFxCarve.ts`) offers a
grouped voice as one option instead of one row per member, tests overlap
as a union of member spans (a group overlaps the bed if ANY member does),
and prefers a qualifying group over its individual members in
`autoSourceIds`.

Picking two or more ungrouped voice clips in the carve flow now mints a
group behind them (`mintGroupId`, de-duped against every id in the
document) and writes `data-audio-group` on each picked clip atomically,
one undo entry — `createAudioGroupAndAssignMembers` in
`timelineTrackVisibility.ts` copies `setElementsHidden`'s multi-target
write shape. The DSP is untouched: `mixCarveSources` already sums
multiple sources correctly (verified in the design doc's own
investigation) — this only fixes the picker.

New lint rule `audio_carve_ungrouped_sources` (`packages/lint/src/rules/
media.ts`, alongside `audio_volume_double_automation`) warns when a
`data-fx-carve`'s `sources` names two or more plain clip ids instead of a
group — the shape that silently rots when a clip is added. `/hyperframes-
audio` states the same rule as an invariant, not a tip, with the grouped-
narration HTML example from the design doc.

The group-matching and auto-group logic (`withAutoGroupedSources`,
`collectCarveCandidates`) is split into `useFxCarveGrouping.ts` —
`useFxCarve.ts` was pushing past the 600-line cap. `resolveNextCarveSettings`
is deliberately NOT an `async function`: wrapping it in one would force a
microtask on every call, including the synchronous branch — the exact bug
`withAutoGroupedSources`'s own sync-when-possible contract exists to avoid,
and one caught via `propertyPanelAudioFxGroup.test.tsx` (10 failures)
before fixing it back to a plain function the caller conditionally awaits.

Also extracted `useEffectiveTimelineDuration` out of `App.tsx` and
`useRemoveBackground` out of `StudioRightPanel.tsx` (both pushed past 600
lines from an added prop wire), and decomposed `useFxCarve.ts`'s picker
IIFE to clear fallow's complexity gate.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-20 02:11:37 -07:00
Miguel Ángel ec0b23f3ce fix(studio): make Delete remove the whole canvas selection (#3339)
* fix(studio): delete every clip in the selection, not just the first

Select all in the timeline, press Delete, and one clip disappeared while the
rest stayed — still drawn as selected.

The Delete hotkey built the selection set correctly and then called
`elements.find(...)`, which stops at the first match, and handed that single
element to a handler that deletes exactly one. The comment above it claimed the
handler "expands a clip that is part of the multi-selection into an atomic
delete of the whole selection (single undo)" — no such expansion existed
anywhere; `useTimelineEditing` never read `selectedElementIds`.

`handleTimelineElementsDelete` takes the whole selection and removes every
element before saving once, so the delete is a single history entry and a single
undo — what the comment already promised. The hotkey layer now takes only that
plural handler, since it never deletes one element in isolation; the singular
entry point stays for the context menu and clip chrome. The store drops every
deleted key and clears the marquee set, rather than leaving a selection drawn
around clips that no longer exist.

Elements whose `sourceFile` is not the composition being edited are dropped from
the pass rather than written to the wrong file.

Also removes the preview's double-click-to-reset-zoom. It was a document-level
capture listener, so any double-click anywhere over the viewport snapped the
zoom back to fit — including double-clicks meant for the content under it. The
explicit reset control beside the zoom HUD stays.

Reproduced by test: restoring `elements.find` reds the new marquee case.

* fix(studio): delete every canvas element in the selection, not just the primary

Selecting several elements on the canvas and pressing Delete removed one of
them and left the rest — still drawn as selected. The delete path only ever
took the primary selection; the marquee group it belongs to was ignored.

Expand the session-level delete through the group ref, the same way the other
group commits already do, and let the lifecycle op remove every member under a
single save so one Undo restores the whole selection.

* fix(studio): let the canvas selection own Delete instead of its timeline mirror

Marquee-selecting elements on the canvas and pressing Delete removed a
fraction of them. The hotkey routed to the timeline delete whenever the
timeline store held anything, and the timeline's copy of a canvas selection is
derived and lossy by construction — a member with no timeline row of its own is
dropped from it. Selecting 73 elements published 14 ids, so 14 went and 59
stayed, still drawn as selected.

The canvas selection is what the user drew the marquee around, so it owns
Delete whenever it holds something; the timeline path stays as the fallback for
rows with no canvas node to select. Both paths already remove through the same
endpoint, so this is one addressing scheme replacing two.

That makes the canvas delete the path a Delete press normally takes, so it
picks up the same mid-recording refusal the timeline delete has.

* fix(studio): let the marquee see the whole document, not the first 80 elements

Dragging a marquee over the entire canvas selected a fraction of what it
covered, so Delete left most of the page behind. The hit test sourced its
candidates from the layers-panel collector, which stops after 80 items — a
budget for how many rows that panel is willing to render, silently reused as if
it described the document. Everything past the 80th element in document order
was unselectable no matter where the user dragged. The off-canvas indicators
were reading the same truncated list.

The cap now belongs to the panel that wants it; the collector returns
everything. To pay for that, the marquee measures its candidates once when the
drag passes the threshold instead of re-reading layout for every element on
every pointer-move: unbounded plus per-move stalled the tab outright, and the
iframe DOM does not mutate mid-drag, so one pass stays true for the gesture.

On a captured page: one marquee, one Delete, 734 elements down to 81.

* fix(studio): report a no-op delete instead of claiming the elements went

A target the file no longer holds answers `changed: false`, which is normal
for a member nested inside another member already removed. Every target
answering that is not — it means the preview is describing a document the file
does not have, so each removal misses and the file is written back untouched.

The toast still said "Deleted 503 elements. Use Undo to restore them." That is
how a delete that did nothing at all looked from the outside: press Delete, the
page stays, nothing on screen explains it. Say the preview is out of date and
reload it instead.

* fix(studio): keep the canvas hotkeys alive across preview reloads

Pressing Delete with a canvas selection did nothing at all — no removal, no
toast, nothing on screen to explain it. A keypress goes to whichever document
has focus, and clicking the canvas puts focus inside the preview iframe, so the
app's hotkeys have to be forwarded there.

They were, but only from the iframe element's ref callback, which fires when
the element mounts. A preview reload keeps the same element, so the callback
never runs again, and keeps the same WindowProxy, so the forwarder's identity
check saw no change and skipped re-attaching — while the inner window holding
the listeners had been replaced. After the first reload the canvas had no app
hotkeys left. Undo and redo kept working because their forwarder re-attaches on
every load, which is why this read as "only Delete is broken".

Fold the app handler into that per-load forwarder so both attach in the same
place, on every load, and drop the mount-only one. Window only: the history
pair also listens on the document, and capture listeners on both would run the
app handler twice per press.

* perf(studio): stop re-probing every restored selection member on load

The hash carries the whole canvas selection, and restoring it asked the
server whether each member still exists in the source — one request per member,
awaited one after another. A marquee over a captured page puts hundreds of
members in the URL, so every later load of that URL spent hundreds of serial
round trips rebuilding the selection before the canvas answered anything,
keypresses included.

The marquee that produced those members already skips the probe. Restoring them
skips it too; only the primary, whose panel reads the flag, still pays for one.

* fix(studio): delete a canvas selection in one pass and say the key landed

Reproduced with a real, focus-routed keypress instead of a synthetic one: the
press does reach the handler and the delete does run to completion, but at
hundreds of members it takes seconds during which the canvas is unchanged and
nothing acknowledges the key. Silence for that long is indistinguishable from
Delete being broken, and pressing it again or reloading mid-flight lands in a
worse state.

Two things, one per cause. The removal now sends the whole selection in a
single request against a new remove-elements route, which reads the file once,
drops every member and writes once — it was a round trip AND a full rewrite of
the file per element. And a multi-element delete announces itself before the
work starts, so the press is visibly acknowledged instead of leaving the canvas
looking untouched until it finishes.

Measured on a captured page, 84 members: 933ms of serial round trips against
84 rewrites, down to 583ms and one.

* refactor(studio): narrow the SDK delete targets instead of asserting them

The batch SDK path guarded on every member having an hfId and then asserted
it away per member. Narrow once into a string list so the guard and the values
come from the same place, and drop a threaded content variable that never
changed — the SDK owns the document it edits, so every member is removed
against the same starting content.

Also mounts the new forwarding test through the existing harness rather than
repeating its setup.

* fix(studio): stop Delete acting on a canvas selection the user replaced

Two things the reordered Delete arbitration got wrong, both found in review.

A clip with no canvas node left the canvas selection pointing at whatever was
picked before it, and the canvas branch wins whenever that ref is non-null — so
selecting an audio clip and pressing Delete removed the previously selected
canvas element and left the clip, right after the toast said the clip was not
in the preview. The timeline fallback the comment described could not be
reached. Clearing that selection has to stay quiet: the clear is announced to
the timeline, so echoing it would deselect the clip that was just picked.

Expanding the primary to the marquee group also moved out of the delete handler
and up to the Delete key. Cut copies the primary alone, so expanding for every
caller put one element on the clipboard and removed every other member with it
— undo brought them back, paste restored one. The rule is a named function now,
so the two callers can differ without either guessing.

Also throttles the off-canvas indicator rebuild, which the cap had been hiding.
It walks every element in the preview and reads layout for each — measured at
6.5ms on an 825-element captured page against a 16.7ms frame — and what marks
it dirty is a MutationObserver on inline style, which is how animation writes.

* fix(studio): hold the canvas selection inside the timeline selection

The stale-canvas-selection defect survived at the second writer. The
store-driven sync bails when a member has not resolved yet and returned without
touching the canvas, so a pick with no canvas node at all left the previous
selection in place — and Delete acts on the canvas first, so it deleted that.
Reachable from the sidebar audio and asset reveals and from an asset drop, none
of which go through the handler already fixed.

Clearing on every bail would be wrong: the bail exists for a member whose node
is not ready, which a later run resolves, and clearing there would flicker.
Only a canvas anchor that resolves OUTSIDE the current selection goes, which is
the state that is dangerous rather than merely unfinished. Quietly, for the same
reason as the first writer: announcing would deselect the clip just picked.

The invariant is named now, since Delete depends on it: the canvas selection
never points outside the current timeline selection.

Also drops the x-hf-removed header, which nothing read and whose comment
promised a partial-vs-no-op distinction the response cannot make, and pins the
indicator throttle that was measured but uncovered.
2026-08-19 00:22:26 -04:00
Miguel Ángel 17ac986bfe fix(studio): canvas selection, drag and resize correctness (#3146)
* fix(studio): size the selection box by the transform the element actually paints under

The box around a text layer inside the playground card stopped mid-word. The
layer is 260px wide and paints 313, because its parent carries `scale(1.2)`,
and the chrome read only the element's OWN transform. The top-left looked
right, since the corners are anchored to the real bounding rect, so only the
right and bottom edges fell short, by exactly 1/1.2.

The same read decides whether to draw the box rotated at all, so an element
whose parent is rotated got an upright box over a rotated one.

The transform is now accumulated from the element up to the composition root.
Only the linear part matters: each transform's origin contributes translation,
and translation is already discarded by matching the corners to the element's
bounding rect, so composing the matrices is enough and no per-ancestor origin
has to be unpicked. The walk stops inside the composition document, because the
canvas zoom lives on the iframe in Studio's own document and is applied
separately.

The fake DOMMatrix the geometry tests use gained the `multiply` it now needs.

* fix(studio): drag by the movement the element actually makes, not the one assumed

An element that had never been dragged skipped the movement measurement and took
the canvas zoom as the whole screen mapping. Nothing above the element was
considered, so any parent transform broke the drag: a card at rotationY 180 with
scale 1.2 maps a rightward drag to -1.2x the zoom, meaning the text walked LEFT
while the overlay followed the pointer, and the overlay only snapped onto the
text at drop, when it re-measured.

Measured on the live element in that card: one unit of drag offset moved it
-0.757 px on x and +0.757 on y, where the skipped path assumed +0.631 on both.

The measurement it skipped already handles this — it moves the element, watches
where it lands, and inverts that, which is right for rotation, mirroring, scale
and perspective alike. So the special case is gone and every drag measures. Same
element after: a 120x80 pointer drag moves it 120.3x80.2.

Rewrote the test that asserted the skipped path's identity matrix for an
unmovable element. It now asserts the honest outcome: an element with no
measurable movement is reported unmeasurable whether or not it carries a path
offset, and the caller's existing fallback covers it.

* fix(studio): shift-click adds the element under the pointer, not the last one hovered

Shift-click read the hover cache and used it without checking what it described.
That cache is filled asynchronously as the pointer moves, so passing over one
element on the way to another leaves it naming the element you left. The
shift-click then added THAT element, and because the same branch prevented the
default and set the suppression flags, the mousedown path that would have
resolved the point correctly never ran. Multi-select looked like it grabbed
things at random, or like it did nothing.

Reproduced on the canvas with a trace: hover #card, shift-click #dot-b, and the
group gained #card. Same gesture after: the guard rejects the cache, the
mousedown path resolves the point, and the group gains #dot-b.

The cache is still used when it is provably about the point clicked, including
when it names a clip ancestor of the element there, so the fast path survives for
the common case of clicking straight at something.

Adds `hf-select-debug` (localStorage, off by default) recording which selection
branch ran and what it decided, and pulls the flag/format shared with
`hf-reload-debug` into one place rather than copying it.

* fix(studio): keep every element a marquee caught, not just the first

The marquee built the group correctly and then threw it away. It announced only
the primary to the timeline, and the timeline is the source of truth for what is
selected: the sync back to the canvas saw one selected id against a group of
several, decided the canvas was stale, and replaced the group with that single
element a moment after the drop. Drag a box around four things, get one.

The whole set is announced now, and the primary goes in as its anchor rather
than as a new single selection, so the set it just joined survives. This is the
same reason the single-select path already anchors with preserveSet.

A test drives applyMarqueeSelection with two elements and asserts both reach the
timeline; it fails against the old single-id announce.

* fix(studio): stop a group selection from erasing itself on the timeline

Every canvas selection is mirrored onto the timeline, and the timeline syncs
back — whatever it holds replaces the canvas selection a moment later. The
mirror announced only the primary and anchored it with preserveSet, but
preserving a set that does not contain the id empties the set, and an empty set
syncs back as "nothing is selected". Adding a second element, or re-resolving a
group after moving it, could therefore drop the whole selection rather than keep
it.

One helper now owns the mirror: publish the members, then anchor. A single
selection keeps the previous contract deliberately, so a late async primary
still cannot collapse a live group and a fresh click still collapses a stale
one. The group re-resolve path also gains the ancestor id fallback the other
callers already had — without it a member with no direct timeline row resolved
to null and deselected everything.

Two tests: a second element joining a selection, and a marquee, both assert the
full set reaches the timeline. Both fail against the announce-the-primary-only
version.

* chore(studio): trace what moves a dragged group and when

A drag that jumps is a position that changed without the pointer asking for it,
and nothing on that path says anything today, so the frame it diverges can only
be guessed at. `hf-drag-debug` (localStorage, off by default) records the whole
gesture: the mapping and start position each member got, the pointer delta
against the delta actually applied on every eighth move, what each member was
told to commit, and where they all sit at the drop, once the commit resolves, and
120/400/900ms later.

That last group is the point of it. The source write, the preview reload and the
timeline resume all land within a few frames of the drop, and any of them can put
the elements back where they started before the new position arrives — a
snap-back shows up as a settle sample reverting to the gesture-start reading.
A gap between `pointer` and `applied` instead means snapping pulled the group off
the cursor, which is a different fault with a different fix.

* chore(studio): name the path that clears a selection after a group move

The drag trace showed the group landing exactly where it was dropped and staying
there — no snap-back at any settle sample, and the pointer and the applied delta
never more than 2px apart — but two milliseconds after the drop the selection was
cleared with seven members still in it.

The clear comes from the timeline sync deciding the timeline holds nothing, and
that branch said nothing. It says so now, along with whether it is about to act
on it. The mirror alongside it reports how many members it managed to publish and
whether the anchor was among them, because a member with no timeline row of its
own resolves to null and is dropped silently — publish none and the sync reads it
back as an empty selection.

* fix(studio): losing one member of a group no longer deselects all of it

After a move the preview re-syncs and the selection is re-resolved against the
new document. When the primary could not be found there, both re-resolve paths
cleared the entire selection — so a group of five, all still on screen, was
deselected because one of them failed to resolve. The trace showed the clear
landing 600ms after the drop with five members still held, and the timeline sync
running afterwards on an already-empty canvas, which ruled it out as the cause.

A live group now re-resolves as a group and keeps whoever survived, picking a new
primary from them; it only clears when nobody did. That is what
refreshDomEditGroupSelectionsFromPreview was written for — it existed and was
never called.

Both clears also say which one they are and how many members were held, so if
this is not the last of it the next trace names the path immediately.

* feat(studio): carry a multi-selection in the URL, and name the member that breaks away

A link to a bug hit with several elements selected only reproduced one of them,
so the report read as "works for me". The hash now carries the rest as selGroup
and reopens the whole selection; members whose element is gone are dropped rather
than failing the others. Verified end to end in a real browser: select three,
copy the hash, open it fresh, the same three come back.

The drag trace also gains a rigidity check. A group moves as one object, so every
member travels the same distance; one that does not IS the fault. Drift was being
computed but only printed on every eighth frame, which is exactly how a
single-frame divergence hides — it now prints on the frame it happens.

The frame handler moves to its own module on the way past. It had grown a snap
block and a trace block inside a function already juggling four gesture kinds,
and it was over both the complexity and file-size gates.

Not fixed: the jump itself. Two headful runs driving a real group drag showed the
members staying rigid to the pixel, at the drop and 900ms after, so I have not
reproduced it yet and will not guess at a fix.

* fix(studio): stop snapping from moving a selection you have not dragged yet

Your log caught it on the first frame of the drag: pointer "0,0", applied "4,-3",
and all four members jumped 12,-8 composition px before the pointer had moved at
all. An element resting within the 6px snap threshold of a guide is already
snappable, so the snap computed on frame one closes that gap immediately —
picking the selection up moves it.

Snapping now sits out until the gesture has travelled the same 4px a drag needs
to count as a drag rather than a click, on both the group and single-element
paths. Nothing below that distance moves anything, and a real drag snaps exactly
as before.

The test builds a box resting 4px from a guide and asserts the ungated call still
returns dx 4 — the very displacement from your log — while the gated one returns
0 for a pointer that has not moved.

* fix(studio): a dropped group stays selected

Your Jam confirmed the first-frame jump is gone — pointer "0,0" now reads
applied "0,0" — and caught what was left: two milliseconds after each drop, a
`[hf-select] clear` with the group still holding three, then four members.

Every pointerup trails a click. The group gesture ref is cleared before the
commit runs, so by the time that click arrives the box no longer looks busy and
it reaches the canvas as an ordinary click — landing in the gap between the
members, resolving to nothing, and clearing the selection the drag just moved.
The under-threshold path already ate that click; the committed path never did.

The flag is now set before the two paths diverge, so neither can forget it. The
test drives a real pointerup through the handlers and fails on the committed
path with the flag moved back down.

* feat(studio): marquee from anywhere on the canvas, including outside the frame

An element dragged past the edge sits out in the grey, and the rubber band
refused to start there — it only began when the press landed inside the
composition rect. The one gesture that could reach those elements could not be
begun near them, so the timeline was the only way to select something plainly
visible on screen.

The collecting half never had that limit: it compares rects in overlay space and
never clipped to the frame, so those elements have always been selectable once
the band could begin. Only the start gate had to go.

A press in the grey that never travels still commits an empty selection, which is
the deselect it used to be, so the old behaviour of clicking out there to clear
is unchanged.

* refactor(studio): keep the selection files under the size cap

The selection work above pushed four files past the 600-line gate. Same
split the branch made later, landed with the changes that caused it.

* fix(studio): preserve selector groups in share URLs

* fix(studio): close multi-selection review gaps

* fix(studio): stabilize selection store reads

* fix(studio): preserve canvas-only group anchors

* fix(studio): stop a group drag from jumping one element back

Dragging several elements at once and dropping them made one of them snap
back to where it started for a frame or two, then jump forward again.

Each member of the group is written separately, and every write patched the
live GSAP tween in place and then seeked the player. A seek re-renders the
WHOLE timeline, not the tween that changed, so the members still queued
behind that write got repainted from their un-patched tweens: back to their
pre-drag position, where they sat until their own write landed. Only members
whose tween actually renders at the playhead showed it, which is why a group
of three flashed one element and left the others still.

The group commit now defers the seek for every member but the last, so the
queued members keep the transform the gesture left on them and the whole
group repaints once, from the fully patched timeline.

* perf(studio): commit a group drag in one request

Dragging N elements cost N writes and 9 reads for a three-element group: each
member fetched the composition's parse to preflight, fetched it again to
resolve its tween, then wrote the file on its own round trip. Every one of
those writes re-read, re-parsed and re-serialized the whole composition.

Three changes, same behaviour:

- The parse endpoint shares an in-flight request per file, so callers asking
  for the same composition at the same moment get one request. Only
  overlapping calls share — the entry is dropped as soon as it settles, so a
  read after a write still gets a fresh parse.
- The group preflight runs its members together instead of one at a time. A
  preflight writes nothing, so there is nothing to order.
- Members' mutations are queued and sent as one batch write. Anything that
  re-reads the file flushes the queue first, so a member resolving a shared or
  stale tween never reads a composition missing writes it is about to build
  on. The batch carries each member's runtime patch, and only the last one
  re-renders.

A three-element group drag now issues 2 reads and 1 write, down from 9 and 3.

* fix(studio): harden batched drag commits

* fix(studio): carry deferred preview fallbacks

* chore(studio): name whoever puts the pre-resize size back

Resizing the card commits correctly — the source and a fresh load both read
273x181 — but 200ms after the drop, mid-commit, the element renders at 395x261
with the studio size vars still holding 273x181. Something writes the
pre-gesture size back inline while the reload is still in flight, and every
writer of that size was silent.

Both are traced now under the existing hf-resize-debug flag, each with the size
going in, the size being replaced, and a short stack. Restoring the pre-gesture
size is right on a cancel and wrong after a successful commit, and the function
doing it cannot tell the two apart from the inside — so the caller has to be
named before this can be fixed at the right end.

* fix(studio): hold a resized element's size while the timeline is rebuilt

Your log caught it across two resizes. The first commits 305x202 and the element
is 305x202 at the drop; 200ms later it renders 395x261, its stylesheet size,
while --hf-studio-width still reads 305. The second gesture then starts with
`actual` at 305 against a live box of 395, and its very first move — a pointer
delta of 0.1px — snaps the element back to 305. That snap is the jump.

The gap belongs to the soft reload: it reverts the old timeline before building
the new one, and GSAP hands back each tween's recorded starting width on the way
out. Nothing held the size in between, because the seek reapply that exists for
exactly this stands aside for elements GSAP animates.

Standing aside is right for the offset — those channels compose, and applying
both doubles the move — and wrong for size, where both channels write width and
height so the later write simply wins on the same committed number. It applies
now. Only an element mid-edit carries the vars, so nothing else is touched.

A test seeks an element whose size GSAP owns after the revert put the stylesheet
size back, and fails with the skip restored.

* refactor(studio): keep the resize files under the size cap

* docs(studio): fold the resize note into the size-reapply comment

* fix(studio): rotate the child outlines with the element they outline

Selecting a rotated element drew upright dashed boxes across its children:
the chrome co-rotated with the element and the child outlines did not, so a
text layer inside a rotated card got a square outline lying across the
rotated glyphs.

The chrome already measures an oriented box; the child outlines were still
measured axis-aligned. They now use the same oriented measurement and render
with the same rotation. An unrotated element measures identically to before,
since the oriented rect returns the plain bounding box at angle 0.
2026-08-09 16:58:34 -07:00
Miguel Ángel d5cc1c9c62 fix(studio): keep the preview alive when the window is tight (#3091)
Panel sizes are reconciled against the window on every resize, with the preview holding a 360x200 floor that panels yield to before it gives.

Measured preview pane: 760px window 192 -> 433, 560px window 2 -> 516. Windows at or above 1280px are unchanged.

- fitPanels owns the who-yields decision for both axes
- panel caps are window-relative, replacing a flat 600px inspector cap
- below 860 the sidebar rails, below 700 the inspector collapses too
- auto-collapse is derived render state and never writes leftCollapsed
  (localStorage) or rightCollapsed (synced into the shareable URL)
- the rail and header toggles act on the effective state, so neither is a
  dead click that silently persists a collapse the user never asked for
2026-08-07 13:35:39 -07:00
Miguel Ángel ebdd1893c4 fix(studio): reconcile external edits before reload (#2993)
* fix(studio): reconcile external edits before reload

* fix(ci): retry transient workspace installs

Make external reload retry behavior honest and isolate reload listeners.

Remove the dead SDK timestamp parameter.
2026-08-04 23:13:19 +00:00
Miguel Ángel cef3b86c95 chore(studio): remove fully rolled-out studio feature flags (#2889)
## What

Removes six Studio feature flags that have been default-`true` for 7+ weeks. Each is reachable under two env names, so this deletes **12 `VITE_STUDIO_*` env vars**:

| Flag constant | Env names removed | Default-on since |
|---|---|---|
| `STUDIO_PREVIEW_MANUAL_EDITING_ENABLED` | `VITE_STUDIO_ENABLE_PREVIEW_MANUAL_DRAGGING`, `VITE_STUDIO_PREVIEW_MANUAL_EDITING_ENABLED` | 2026-05-12 |
| `STUDIO_INSPECTOR_PANELS_ENABLED` (+ its `STUDIO_PREVIEW_SELECTION_ENABLED` alias) | `VITE_STUDIO_ENABLE_INSPECTOR_PANELS`, `VITE_STUDIO_INSPECTOR_PANELS_ENABLED` | 2026-05-12 |
| `STUDIO_BLOCKS_PANEL_ENABLED` | `VITE_STUDIO_ENABLE_BLOCKS_PANEL`, `VITE_STUDIO_BLOCKS_PANEL_ENABLED` | 2026-05-18 |
| `STUDIO_GSAP_PANEL_ENABLED` | `VITE_STUDIO_ENABLE_GSAP_PANEL`, `VITE_STUDIO_GSAP_PANEL_ENABLED` | 2026-05-28 |
| `STUDIO_KEYFRAMES_ENABLED` | `VITE_STUDIO_ENABLE_KEYFRAMES`, `VITE_STUDIO_KEYFRAMES_ENABLED` | 2026-06-05 |
| `STUDIO_RAZOR_TOOL_ENABLED` | `VITE_STUDIO_ENABLE_RAZOR_TOOL`, `VITE_STUDIO_RAZOR_TOOL_ENABLED` | 2026-06-10 |

## Why

Every one of these shipped as a rollout gate, went to `true`, and then stayed. Because none of them was ever flipped back, the `false` branch was unreachable in practice while still costing a real import, a real conditional, and a real "what happens if this is off?" question at ~90 call sites across 25 files.

The bigger cost is what the dead branch kept alive. Removing the flags also removes the disabled-Studio code paths that only existed to serve them:

- the greyed-out, `disabled`, "Manual editing is temporarily disabled" Inspector button in `StudioHeader` (and the `STUDIO_MANUAL_EDITING_DISABLED_TITLE` constant behind it)
- the inspector-off reset `useEffect` in `useDomSelection`, which force-cleared selection and redirected the right panel to Renders
- three selection kill-switch early-returns in `useDomSelection` (`applyDomSelection`, `handleTimelineElementSelect`, `applyMarqueeSelection`)
- the tab-redirect branch in `normalizeStudioUrlPanelTab`, whose `options.inspectorPanelsEnabled` parameter had no production caller at all (only tests passed it)

## How

No behavior change: every flag was removed by keeping its default-`true` side.

The call-site edits are three mechanical boolean shapes (`X && rest` → `rest`, `rest && X` → `rest`, `!X || rest` → `rest`), applied by script for uniformity. Everything else (ternaries, `if` guards, unreachable blocks, JSX wrappers that had no other condition) was done by hand and the whole diff was read line by line afterwards.

`resolveStudioBooleanEnvFlag` and the `import.meta.env` / `window.__HF_STUDIO_ENV__` plumbing stay: three flags still use them (`STUDIO_FLAT_INSPECTOR_ENABLED`, `STUDIO_SDK_CUTOVER_ENABLED`, `STUDIO_SDK_RESOLVER_SHADOW_ENABLED`). Its unit tests kept their coverage but now exercise a live flag pair instead of retired env names, so no dead `VITE_STUDIO_*` string is left in the repo.

Net **-191 lines** (236 insertions, 427 deletions across 25 files); most insertions are reindentation of JSX that lost a wrapper.

### Deliberately not in scope

Flags authored by other people are untouched, even where they look similarly settled:

- `VITE_STUDIO_ENABLE_FLAT_INSPECTOR` / `VITE_STUDIO_FLAT_INSPECTOR_ENABLED` (default true, but not mine)
- `VITE_STUDIO_SDK_CUTOVER_ENABLED`, `VITE_STUDIO_SDK_CUTOVER_FAMILIES`, `VITE_STUDIO_SDK_RESOLVER_SHADOW_ENABLED` (SDK cutover canary, still soaking)
- `VITE_HYPERFRAMES_NO_TELEMETRY`

Mine but genuinely long-lived configuration rather than rollout gates, so they stay: `VITE_STUDIO_DISCOVERY_PORTS`, `VITE_HYPERFRAMES_FEEDBACK_INTERVAL`, `VITE_HYPERFRAMES_NO_FEEDBACK` (a documented user opt-out), plus the `HYPERFRAMES_*` binary paths, API URLs, cache sizes, and timeouts.

`VITE_STUDIO_ENABLE_MOTION_PANEL` / `VITE_STUDIO_MOTION_PANEL_ENABLED` were already retired from production code before this PR; they only survived as placeholder names inside the resolver's unit tests, and this PR swaps those out.

## Test plan

- [x] Unit tests added/updated - dropped the two tests asserting removed flag defaults; retargeted the `resolveStudioBooleanEnvFlag` cases at a live flag pair; updated `studioUrlState` tests for the narrowed `normalizeStudioUrlPanelTab` signature (now also asserts an unknown tab returns `null`).
- [x] Manual testing performed - see below.
- [ ] Documentation updated (if applicable) - not needed; no removed name appears in `docs/`, `skills/`, or `registry/`. (`docs/changelog.mdx` has one historical entry naming `STUDIO_KEYFRAMES_ENABLED`; changelog history is left as written.)

```
packages/studio: bunx vitest run          # 280 files, 3116 tests pass, 1 skipped
packages/studio: bunx tsc --noEmit        # clean
bun run build                             # green (all packages)
bunx oxlint  <25 changed files>           # 0 warnings, 0 errors
bunx oxfmt --check <25 changed files>     # clean
```

Two extra checks, because part of this diff was script-generated:

1. Zero references to any removed flag constant or env name remain anywhere outside `docs/changelog.mdx`.
2. Diffed every string literal in each changed non-test file against `origin/main`. The only differences are the intended removals: the 12 env names, `"Manual editing is temporarily disabled"`, the `"cursor-not-allowed …"` disabled class, the 3-column `"1fr 1fr 1fr"` grid, and the `"renders"` redirect literals. No user-facing label, tooltip, or class string changed by accident.
2026-07-30 02:00:05 +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 4a12eb9d9c feat(studio): wire expanded keyframe timeline lanes 2026-07-28 00:40:42 +02:00
Miguel Angel Simon Sierra 2d1b905a56 feat(studio): consolidate timeline editor callbacks 2026-07-27 19:52:06 +02:00
Miguel Angel Simon Sierra d518972f8b feat(studio): add variable timeline timing and layout 2026-07-27 19:52:05 +02:00
ukimsanov 39c2341c4d feat(studio): add media treatment inspector 2026-07-24 18:42:37 -07:00
Miguel Ángel 2b65b4efce fix(studio): harden composition timeline reliability (#2615)
* fix(studio): preserve composition playback continuity

* feat(studio): drag compositions into the timeline

* fix(studio): collapse expanded composition move aliases

* fix(studio): make timeline cuts atomic

* fix(studio): group inspector gesture history

* test(studio): cover masked text selection

* fix(studio): harden composition timeline reliability

* fix(studio): satisfy CI source gates

* fix(studio): harden composition mutation requests
2026-07-17 14:15:30 -04:00
Vance Ingalls 578d6202b4 fix(studio): resync the shared SDK session after a Design-panel variable promote
Reported as "template variables are broken": binding an element's field to a
variable via the flat inspector's "◇ var" promote chip (or editing an
already-bound field's value) wrote the correct bytes to disk, but the
Variables tab kept showing the pre-edit value until the whole Studio page
was hard-reloaded.

Root cause: DesignPanelPromoteProvider deliberately opens its OWN SDK
session (`useSdkSession(projectId, selection.sourceFile ?? activeCompPath)`)
so that promoting inside a sub-composition binds the variable in the
sub-comp's own file, not the host's. For the common case — a top-level
element, same file as `activeCompPath` — this session is a SEPARATE
in-memory `Composition` instance from the shared one `VariablesPanel`
(Variables tab, Slideshow, etc.) reads. A persist through the promote
provider's session never fires the shared session's own "change" event.

Worse, the shared session's file-change listener runs
`isSelfWriteEcho(path, content)` to decide whether to reload — but
`sdkSelfWriteRegistry` is keyed by file path only, not by session instance
(its own doc comment assumes "the studio process has a single SDK session
lifecycle at a time"). It sees the promote provider's write registered
under the same path and concludes it's its own echo, permanently
suppressing the reload it actually needs.

Threaded `forceReloadSdkSession` (the same mechanism every other
server-side-write path in Studio already uses for exactly this "resync
after a write I didn't make myself" case) from App.tsx through
StudioRightPanel into DesignPanelPromoteProvider, and call it after every
successful promote/setDefault persist — unconditionally, not gated on the
promote target matching activeCompPath, since re-opening a file that
didn't change is a harmless no-op re-parse and a path-equality guard here
already produced one subtly wrong comparison (activeCompPath can be null
while the shared session still defaults to "index.html") before landing on
this simpler version. Verified live: editing a variable-bound field's
value now updates the Variables tab immediately, no reload required.

App.tsx crossed the 600-line file-size gate after threading the new prop;
extracted the tiny handleAddAssetAtPlayhead wrapper into its own
useAddAssetAtPlayhead hook (with a regression test) to bring it back under.

Full studio suite (2639 tests) green against a fresh main; typecheck/
oxlint/oxfmt clean.
2026-07-16 00:18:36 -07:00
James Russo 2417293dab fix(studio): enforce optimistic file concurrency (#2156)
* fix(studio): enforce optimistic file concurrency

* fix(studio): harden conditional file writes

* fix(studio): honor explicit file preconditions

* test(producer): allow zero-ms encode timing
2026-07-15 18:07:04 -04:00
James Russo 42055296ee fix(studio): make sdk cutover transactional (#2155) 2026-07-15 10:29:22 -04:00
Ular KimsanovandMiguel Angel Simon Sierra 89db718899 feat(studio): mirror canvas z-order actions into timeline lanes (track order = default paint order) (#2380)
* feat(studio): mirror canvas z-order actions into timeline lanes, badge z overrides

Track order = default paint order; authored z = advanced override.

- timelineZMirror.ts: pure resolver mapping a successful z-menu action to a
  timeline lane move — closest track in the action's direction that is free
  over the clip's whole span, else a new lane adjacent to the crossed
  neighbor; temporal-overlap scope (default pending product sign-off, see
  module doc); visual zone only; same-file reference scoping; persistTrack
  via the shared authored-space rules. null for non-clips (menu stays
  z-only) and at-extreme/no-overlap cases.
- useCanvasZOrderTimelineMirror.ts: after the z commit resolves, the mirror
  persists the lane move through the same machinery as a timeline lane drag
  (optimistic store update, authoredTrack refresh, rollback); inserts reuse
  commitTrackInsert's renumber via a shared buildTrackInsertEdits core. Both
  writes share one coalesce key (zReorderCoalesceKey) and fold into ONE undo
  entry (test proves it over the real history reducer). The mirror never
  triggers the lane->z stacking sync, so it cannot fight the z values the
  action just set.
- timelineZOverride.ts + TimelineClip badge: clips whose paint order
  contradicts lane order among temporally-overlapping same-context visual
  neighbors (laneIsAbove XOR paintsAbove, the stacking-sync predicates) show
  a 'z' badge — authored z overrides are surfaced instead of silently
  disagreeing with the timeline.
- Timeline.tsx track derivations extracted to useTimelineTrackDerivations
  (600-line cap).

* fix(studio): fold mirrored z-order gestures into one undo entry across slow persists

Live verification caught the z write and the mirrored lane write splitting
into two undo entries: the mirror runs after the z persist's server round
trip, which exceeds editHistory's default 300ms coalesce window under real
latency (the unit test's deterministic clock sat inside it).

zReorderCoalesceKey now mints a per-gesture-unique key (monotonic seq, the
laneChangeGestureSeq precedent) and both records carry coalesceMs Infinity —
distinct gestures can never merge, and one gesture always folds regardless
of write latency. coalesceMs threaded through the persist chain alongside
coalesceKey. Also hardens the existing lane-drag move->z fold, which had the
same latent split. Fold test now simulates a 400ms gap (failed before the
fix, passes after); a two-separate-gestures test asserts two entries.

* feat(studio): flashless lane mirror, z-order menu icons, close-gap track menu

- Track-only batch moves (the z-mirror's lane hop and the insert renumber)
  skip the GSAP fallback round-trip and the preview reload entirely — the
  renderer never reads data-track-index, and the live DOM patch + optimistic
  store update cover the UI. Mixed batches keep current behavior. Kills the
  canvas blink on mirrored Bring/Send actions (live-verified: an
  iframe-scoped marker survives the whole gesture).
- The four z-order menu items get 16px stroke icons (single layer diamond +
  directional arrow for Forward/Backward; pierced two-layer stack for
  Front/Back); labels unchanged — they are the industry-standard names.
- New track context menu on empty lane space: 'Close gap' (shifts the next
  clip and every clip after it on that lane left by the clicked gap's width;
  leading gaps count, so a single clip with empty space before it compacts
  to 0) and 'Close all gaps' (whole lane contiguous from 0). Pure gap math
  in timelineGaps.ts; persists through the drag path's atomic batch move
  (one undo per action); refuses when a clip that must shift is locked;
  items disable when there is nothing to close.

* fix(studio): rebind-only preview sync for unmutated timing edits, classical z-menu order

Timing edits that rewrote NO GSAP positions (gap closes and moves of
selector-addressed caption clips, zero-delta batches, comps without a
rewritable script) full-reloaded the preview — and the rerun-current-scripts
attempt was wrong for real compositions: re-executing init-style scripts
(three.js scenes, caption engines) is exactly the unsafe case, verified live
by doubled init warnings and a fallback reload anyway.

The correct observation: when mutated === false the existing __timelines are
still valid — only the runtime's clip visibility windows are stale, and the
live DOM timing attributes were already patched. So the no-mutation path now
runs applySoftReloadFinalization only (seek + __hfForceTimelineRebind +
manual-edits reapply), extracted from the soft-reload machinery — zero
script execution. This also un-blinks comps with no GSAP script at all,
which previously always remounted. Rewritten-script soft reloads,
cannot-soft-reload, otherFileChanged, and mutation failures keep their
existing behavior. gsapSoftReload's undo/redo restore section moved verbatim
to gsapUndoRestore.ts for the 600-line cap.

Also: z-order menu items reordered to the classical arrangement (Bring to
Front, Bring Forward, Send Backward, Send to Back).

Live-verified on a three.js-heavy composition: Close-all-gaps shifted 4
caption clips with correct cumulative amounts, the preview iframe was never
remounted (marker survived), and one undo reverted everything.

* fix(studio): bound forward/backward mirror to a one-element step

User-specified semantic: Bring Forward / Send Backward move the clip past
EXACTLY ONE element. The mirror's lane target is now bounded by the next
temporally-overlapping element beyond the crossed neighbor: a free lane
strictly between the two is taken (closest to the neighbor), and when they
are back-to-back a new track is inserted immediately beyond the crossed
element — never past the second one. Previously the resolver took the
closest free lane anywhere beyond the neighbor, which could carry the track
past a second element while the z action only stepped past one — a
track/paint contradiction our own zOverride badge would flag. Front/back
keep whole-set semantics (past everything; back stays above the audio
zone). End-to-end test pins the 3-stacked case through commitZMirrorLaneMove
to the persisted renumbered tracks.

* feat(studio): permanent gap-menu rows with hover and click-select gap highlights

- TrackGapContextMenu always renders both rows; an inapplicable action dims
  with a tooltip ("No gap here" / lock reason / "No gaps on this track")
  instead of vanishing into a one-item menu. Width badge only when a gap
  exists under the pointer.
- Hovering an ACTIONABLE row highlights the strip(s) it would close in the
  timeline: the single gap for Close gap, every current gap (leading included)
  for Close all gaps. New resolveAllGapIntervals in timelineGaps.ts reports
  present-state intervals (epsilon-tolerant, overlap-safe), distinct from
  resolveAllTrackGaps' post-compaction starts.
- Click-selecting a single clip paints a quieter tint over its lane's gaps
  (suppressed for marquee multi-selection and during drags; the gap-menu hover
  wins on its own lane). Derivation lives in useTimelineGapHighlights with the
  pure buildTimelineGapStrips exported and unit-tested.
- Strips render in TimelineCanvas with the drop-placeholder geometry (row top
  + clip inset), dashed accent for hover, faint tint for selection.
- Timeline.tsx stayed under the 600-line cap by extracting the scroll-viewport
  plumbing (ResizeObserver width + shortcut-hint sync) into
  useTimelineScrollViewport, behavior unchanged.

* feat(studio): stronger capcut-style timeline zoom steps

One button press / pinch gesture now moves the zoom meaningfully: step
factors 1.25x/0.8x -> 1.5x/(2/3) (kept reciprocal so in+out round-trips) and
pinch sensitivity 0.0035 -> 0.007. Addresses "zooming several times to get
anywhere" feedback; cursor anchoring unchanged.

* feat(studio): three-way z sync — layers drags mirror timeline lanes, panel tracks live z edits

Completes the layers/canvas/timeline sync triangle: the Layers panel was the
one surface whose reorders never reached the timeline, and the one that went
stale when the other two wrote z flashlessly.

- Layers drag -> minimal z + equal-jump lane mirror. handleReorder now uses
  the canvas menu's realization core via resolveZOrderReposition (one
  between-z write when a strict gap exists, band-safe scoped renumber
  otherwise) instead of computeReorderZValues' all-sibling stamp — that
  helper is deleted, completing the #2347 unification follow-up. The drop
  then mirrors into a timeline lane move through the same machinery as the
  canvas menu (new resolveRepositionLaneMove: the clip lands on a free lane
  strictly between its NEW paint neighbors' lanes — nearest clip siblings in
  the desired render order, decorations skipped — else a track insert at
  that boundary; audio zone never crossed). Both writes share one
  per-gesture zReorderCoalesceKey with an unbounded fold window, so a drag
  is exactly ONE undo entry; useCanvasZOrderTimelineMirror's plumbing is
  factored into useMirrorLaneMoveCommit and reused by the new
  useLayerReorderTimelineMirror. A same-slot drop is a hard no-op (new
  order-equality guard in resolveZOrderReposition).
- Panel staleness fix: flashless z commits (skipReload) reload nothing and
  bump no refreshKey, so the panel's z-sorted order went stale while paused.
  handleDomZIndexReorderCommit now bumps a store zEditVersion on apply AND
  rollback; the panel re-collects on it. Verified live: the panel re-sorts
  the instant a drag commits and again on undo.
- Layer click reveal (useLayerRevealOverride): clicking a layer that stays
  hidden at the current frame (animation-parked opacity, non-clip
  display/visibility hides, hidden ancestors) temporarily forces the chain
  visible with live inline styles — exact priors restored on deselect, on
  another reveal, on play, and on unmount; never persisted (file diff == 0
  verified live). Clips keep the existing seek-into-window behavior; the
  override applies on a short defer so a seek-revealed clip needs none.
- layerOrdering's unused hasExplicitZIndex probe (zero callers) removed.

Live-verified on a bed copy: a 2-position layers drag wrote exactly one
element (z 6->23 + data-track-index 15->2), the timeline lane moved without
a reload, and a single Cmd+Z restored the file byte-identically.

* feat(studio): full-track selection highlight, borderless gap hover strips

- Click-selecting a clip now lights the WHOLE lane minus its clips — leading
  gap, inter-clip gaps, and the open space after the last clip to the rendered
  end (new resolveLaneEmptyIntervals; displayDuration threaded into the strip
  derivation). Still click-only: any drag/resize suppresses the strips, and a
  marquee multi-select never shows them.
- The gap-menu hover strips drop the dashed border (user feedback) — fill only,
  nudged to 0.18 alpha to keep the same visual weight.

* feat(studio): selected layer paints on top via a reader-transparent z lift

Clicking a layer in the Layers tab now shows the element as if it were at the
very top of the stack while selected — whatever its authored z or panel
position — extending the reveal override (which already forced hidden chains
visible) with a temporary inline z lift:

- liftElementToTop parks the TRUE effective z in data-hf-reveal-prior-z and
  writes a far-top inline z; a static element gets a layout-preserving
  position:relative with its prior parked in data-hf-reveal-prior-pos. Only
  the RENDERER sees the lift: all three studio z readers
  (readTimelineElementZIndex, getElementZIndex, readEffectiveZIndex) return
  the parked prior while the attribute is present, so the canvas z-menu, the
  zOverride badge, the lane mirror, the stacking sync, and the panel sort
  keep reasoning on the element's real z.
- Strictly ephemeral: exact priors restored on deselect / another reveal /
  play / unmount, each property only while it still holds the value the
  override wrote (a later real edit is never clobbered). File diff == 0
  verified live across a full lift/restore cycle.
- A z-reorder commit CONSUMES an active lift (handleDomZIndexReorderCommit
  reads the parked position for its persist-position:relative static check,
  then drops the attributes) — the committed z becomes the truth and the
  later restore is a guarded no-op.

* fix(studio): flashless undo/redo — three full-reload causes in the soft-restore path

Cmd+Z blinked the canvas on essentially every undo. Three independent causes
in applyUndoRestoreToPreview, each sufficient on its own:

1. Master-view path gate: activeCompPath is NULL at the master view, so the
   'paths[0] === activeCompPath' eligibility check could never match the
   index.html restore and every default-view undo full-reloaded at the first
   gate. Normalized to the codebase-wide 'activeCompPath ?? "index.html"'.
2. Nested identity innerHTML check: the diff compared each identified
   element's innerHTML, but the composition root wraps every clip — any child
   change re-detected at the root rejected the restore. Change detection now
   compares only each element's OWN attribute surface; structure/text
   integrity is still guaranteed by the normalize-residual whole-doc pass
   (text nodes, added/removed elements, and un-identified attrs all remain
   after normalization and force the full reload).
3. id-only identity: elements addressed by data-hf-id / selector (no DOM id)
   fell outside the diff entirely. Identity is now id OR data-hf-id, with the
   live sync resolving either.

Also stop re-running an UNCHANGED GSAP script: attribute-only restores (z,
lane, timing, style — the overwhelmingly common undo) now use the rebind-only
finalization (seek + __hfForceTimelineRebind + manual reapply, zero script
execution — the same path as flashless timing edits), instead of tearing down
and rebuilding live timelines or full-reloading when the script can't be
scoped. A restore whose script text genuinely changed still re-runs it via
applySoftReload, and structural restores (split/delete) still full-reload.

Live-verified on the bed (iframe marker): gap-close undo AND redo both keep
the iframe mounted, live DOM lands on the restored values, disk restored
byte-identically.

* feat(studio): left breathing pad before t=0, double zoom sensitivity again

TRACKS_LEFT_PAD (48px) — the horizontal sibling of TRACKS_TOP_PAD: empty lane
surface between the sticky gutter and the ruler's 00:00 / the first clips,
scrolling WITH the content.

- The lanes and the ruler realize it as a plain flow spacer between the
  sticky gutter cell and the time-mapped content div, so every
  content-relative computation (clip left = t*pps, beat lines, lane-menu
  time, clip drag deltas) is untouched by construction.
- Canvas-space overlays shift by the pad: playhead (getTimelinePlayheadLeft),
  gap strips, drop placeholder, snap guide, range highlight, marquee clip
  rects, beat SVG; the insert line spans the pad.
- Every pointer->time inverse subtracts it symmetrically: seekFromX, razor,
  range/marquee anchors, asset drops, and the zoom-anchor gutter basis; fit
  pps and the display width account for the consumed viewport width.
- Live-verified: t=0 clip edge, the 00:00 tick, and the playhead line center
  all sit at GUTTER + TRACKS_LEFT_PAD, and a ruler click lands the playhead
  center exactly under the pointer.

Also doubles the timeline zoom sensitivity again (user feedback after
feel-testing the first bump): button steps 1.5x/(2/3) -> 2x/0.5, pinch
0.007 -> 0.014.

* fix(studio): left pad renders as true empty space, not lane surface

The pad before t=0 inherited each row's background and bottom border from the
row wrapper, so it read as track lanes. Lane visuals now live on the cells:
the sticky gutter keeps its own separator (header column stays delineated),
the time-mapped content div carries the row background + separator, and the
pad spacer stays transparent — bare shell background, no lines. The
new-track insertion line also starts at the pad's end instead of crossing it.

* fix(studio): no vertical line in the ruler band before 00:00

The ruler corner's right border drew the header-boundary line through the
ruler strip, so the band didn't read as starting at 00:00. Dropped it — the
boundary line belongs to the track rows below; the ruler stays completely
clean from the panel edge to the first tick, matching the empty left pad.

* refactor(studio): remove the timeline z-override badge

User decision: the "z" chip on clips never earned its place — dropped
entirely (timelineZOverride.ts + test deleted, TimelineClip badge rendering
and the zOverrideKeys derivation/threading removed). This also eliminates the
review's D2 finding at the root: the badge's cross-document comparison
(stackingContextId ?? null collides across source files in the expanded view)
produced false positives, and there is no longer a detector to mis-fire.
overlapsInTime/paintsAbove lose their export (the badge was their only
external consumer); the paint-order predicate itself is unchanged.

* fix(studio): collision-free expanded child lanes and host-window gap floors

Review findings D1 (blocker) and 4.

- D1: buildChildElements assigned expanded children synthetic display rows as
  `host.track + index` — integers that can EQUAL a real clip's lane in another
  file (host on 0 with two children puts child #2 on 1). Lane grouping merges
  purely by track number, so the collision fused clips from different source
  files into one display lane, and lane-scoped actions (the gap menu) then
  batch-persisted a foreign file's clip. Children now take FRACTIONS strictly
  between the host's lane and the next integer — structurally unable to
  collide with any normalized lane, while still rendering as ordered rows
  under the host. Regression test pins the reviewer's exact two-file scenario.
- Finding 4: gap math compacted toward absolute 0, but an expanded child's
  display time is host-anchored — close/compact could drag it before its host
  window and persist a wrong (even negative) local time. All gap functions
  now take a lane FLOOR (laneGapFloor: 0 for ordinary lanes, the children's
  expandedParentStart for child lanes — single-origin per lane post-D1),
  threaded through the menu model, hover highlights, selected-lane strips,
  and both commits. Close-gap shifts clamp at the gap's own left edge.

* fix(studio): scope mirror references, insert writes, and crossed-neighbor identity

Review findings 1, 2, and 3.

- Finding 1: buildTrackInsertEdits normalized the FULL display set and
  persisted every shifted clip — writing host-lane numbers into OTHER
  composition files when expanded children were showing. The renumber write
  set is now the edited element's own source file (the sanctioned multi-write
  converges one FILE to lane space, never neighbors' files); foreign clips
  keep their authored tracks and re-derive display lanes. The locked-clip
  refusal scopes the same way. Expanded-origin elements refuse the insert
  outright (a new lane is a host-space renumber, meaningless in the child's
  file), and the mirrors restrict an expanded child's lane candidates to its
  own siblings' lanes — a sub-comp child still mirrors WITHIN its sub-comp
  (persisting the sibling's authored track) but can never land on a host lane
  with no same-file occupant. authoredTrackForLane's offset fallback rounds:
  fractional synthetic rows must never leak fractions into data-track-index.
- Finding 2: the mirror comparison sets required only sameSourceFile, but a
  file can contain several CSS stacking contexts and leaf z is only
  comparable within one. Both resolvers now scope by samePaintScope — same
  source file AND same stackingContextId (the file check also stops null root
  contexts of different files from comparing equal in the expanded view).
- Finding 3: the crossed-neighbor key was derived without selectorIndex, so
  duplicate class selectors (.sub) resolved to occurrence 0 — a different
  clip. The key now carries getSelectorIndex, matching how z-reorder entries
  derive theirs.

* fix(studio): z-to-lane gestures are one serialized transaction gated on durable persists

Review findings 5 and 7.

- Finding 5: commitDomEditPatchBatches resolved successfully even when the
  server matched NO patch target — the z write never reached disk (the
  preview reloads to reconverge) yet the lane mirror still ran, desyncing
  track order from what actually paints. The commit now resolves a durability
  report ({allMatched, changed}; the save queue and commit types are generic
  over the result), and the mirror phase is skipped on allMatched === false.
- Finding 7: the z persist rides the DOM-edit save queue while the lane move
  rides the timeline/SDK path — two queues, so a second rapid gesture's z
  write could land BETWEEN the first gesture's z and lane phases. Every
  z-to-lane gesture (canvas z-order menu AND Layers-panel drag) now runs
  through runZLaneGesture: a single module-level tail that serializes the
  COMPLETE two-phase transaction, with unit tests for ordering, the
  durability gate, and queue resilience to failed gestures. The timeline
  lane-drag's inverse (move-then-z-sync) shares its phases' await ordering
  already; cross-gesture serialization for that path is noted as follow-up.
- LayersPanel's pure sort helpers moved to layersPanelSort.ts (600-line cap).

* fix(studio): multi-clip GSAP batch mutations roll back on late failure

Review finding 6. finishGroupTimingGsapFallback mutates files sequentially
per clip; a late per-clip failure left the earlier rewrites on disk with no
aggregate history entry — unreachable by undo. foldGsapMutationIntoHistory
already snapshots every touched path before mutating; on a mutation failure
it now restores each path whose disk content changed (all-or-nothing batch),
reports restore errors without masking the original failure, and rethrows.
Regression test drives a two-clip batch whose second rewrite fails and
asserts the first clip's write is restored byte-identically.

* fix(studio): scope mirror inserts to their lane zone

* fix(studio): unify source-scoped clip identity

* fix(studio): isolate track insert topology

* fix(studio): harden timeline paint synchronization

---------

Co-authored-by: Miguel Angel Simon Sierra <miguel.sierra@heygen.com>
2026-07-14 14:31:58 -04:00
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 dff27cb1df Merge pull request #2111 from heygen-com/feat/timeline-multiselect
feat(studio): timeline multi-select (marquee) + relative group time editing
2026-07-09 17:38:37 -04:00
Miguel Ángel a8f86e653d Merge pull request #2068 from heygen-com/worktree-fix-timeline-zindex-reorder
feat(studio): lane-model timeline — vertical drag restacks via z-index
2026-07-09 17:37:46 -04:00
Miguel Angel Simon Sierra 36413da7f6 feat(studio): resize selected timeline clips together
Apply handle deltas through a group resize session that snapshots selected members.

Clamp one shared delta against zero start and min duration before preview and commit.

Playback-start changes are calculated per member with the existing trim formula.
2026-07-09 16:54:34 -04:00
Miguel Angel Simon Sierra 5d27af30b2 feat(studio): move selected timeline clips together
Fan selected body drags through a group move session that snapshots all selected members.

The grabbed clip snap result is applied first, then one shared delta is clamped.

Live preview patches every moved member and release persists once through batch timing.
2026-07-09 16:54:34 -04:00
James bc0e0b314b fix(studio): code-review and live-test fixes for the variables stack 2026-07-09 13:31:03 -07:00
Miguel Angel Simon Sierra e5ed512529 feat(studio): timeline track = stacking layer (NLE-style layering)
Re-architect the timeline row model from data-track-index rows to stacking
layers. Rows represent stacking layers per context: explicit-z clips merge onto
one track when they share a z and don't overlap in time; auto-z clips stay one
row each (DOM order); audio is pulled into its own bottom lanes. Rows keyed by a
stable layer id, not data-track-index.

Vertical drag always writes z-index, never track: drop onto a layer joins it
(same z), between layers interpolates a new z, past the ends creates a new
front/back layer. data-track-index is never rewritten; #958 holds. Adds
hasExplicitZIndex capture (computed z != auto).

L1: hasExplicitZIndex on the element model
L2: buildStackingTimelineLayers (layer-based rows)
L3: layer-aware vertical drag (join / interpolate / new-extreme)
2026-07-08 23:46:25 -04:00
Miguel Angel Simon Sierra dd980697a2 feat(studio): unify timeline vertical reorder with z-index stacking
Timeline rows now order by scoped stacking (z-index per stacking context)
instead of data-track-index, and dragging a clip up/down commits a targeted
z-index change through the same shared path the layers panel uses. Both panels
stay consistent and moving a clip actually changes front/back. data-track-index
is demoted to time-overlap layout only; no bulk z-index injection (#958 intact).

Also restores beat-snapping on keyframe retiming (re-wires snapKeyframePctToBeat,
orphaned when keyframe dragging was removed) which surfaced while unifying the
model. Extracts pure track-ordering logic to timelineTrackOrder.ts, the stacking
reorder commit + deleteSelectedKeyframes to timelineEditingHelpers.ts, to keep
StudioApp / the timeline hook / Timeline under the studio 600-LOC cap.

U3: scoped stacking row order in the timeline
U4: vertical drag commits z-index via the shared reorder commit
U8: restore keyframe beat-snap on retime
2026-07-08 23:46:24 -04:00
Miguel Ángel 623f91d6a1 feat(studio): always-on crop with reposition handle, drop crop mode (#2090)
Crop is now part of the element selection instead of a separate mode. Selecting
a croppable element shows edge handles just outside each side and, once cropped,
the full content with the cropped-away area dimmed plus a center reposition
handle to pan the crop window. Dragging the body moves the element, edge handles
crop, the center handle pans; corners stay free for the resize handle. Removes
the crop-mode toggle (toolbar + property-panel buttons), the cropMode/
cropAvailable player-store state, and the double-click-to-crop gesture. The
clip-path inset model is unchanged.
2026-07-08 22:24:26 -04:00
Miguel Ángel 037266e72b feat(studio): timeline revamp with active-clip highlighting and hide controls (#2017)
Timeline UI
- Highlight clips visible at the playhead in the primary color; others share one neutral color
- Minimalist rounded clips, single-color track rows, no gutter icons or superscript labels
- Per-track eye toggle and a per-element hide button in the design panel
- Ruler zoom fixes: sub-second tick intervals and correct label formatting at high zoom
- Sticky gutter so track controls stay visible while scrolling

WYSIWYG visibility (data-hidden)
- Runtime honors data-hidden (display:none), so hiding affects the render, not just the preview
- HTML stays the source of truth; hide state persists and round-trips on reload

Split several studio files to stay under the 600-line cap; pure relocations, no behavior change.
2026-07-07 04:26:56 -04:00
Miguel Angel Simon Sierra 676f461f6a feat(studio): non-destructive crop + cross-project asset view 2026-07-06 23:40:32 -04:00
Vance Ingalls 89e36da13d fix(studio): shell UX — data-loss guards, error surfacing, dialog contracts, toasts (#1964) 2026-07-06 16:56:06 -07:00
ukimsanov 30a944de34 fix(studio): split color grading inspector files 2026-07-06 13:56:37 -07:00
ukimsanov 139cf568b4 feat(studio): add color grading inspector 2026-07-06 13:40:20 -07:00
James RussoandClaude Opus 4.8 f24a1a9ce7 feat(studio): make storyboard view default available (remove FF) (#1794)
* feat(studio): make storyboard view default available (remove FF)

Removes STUDIO_STORYBOARD_ENABLED. The storyboard view-mode toggle was
gated behind a default-off feature flag (VITE_STUDIO_ENABLE_STORYBOARD)
since #1529. With the storyboard experience now ready for broad
exposure, drop the gating and make the toggle available unconditionally.

Changes:
- packages/studio/src/components/editor/manualEditingAvailability.ts:
  delete the STUDIO_STORYBOARD_ENABLED constant.
- packages/studio/src/App.tsx: drop the import + FF arg to
  useViewModeState(). Hook is now called argument-free.
- packages/studio/src/components/StudioHeader.tsx: drop the import + the
  conditional-render guard on <ViewModeToggle />. The toggle always
  renders in StudioHeader's center slot.
- packages/studio/src/contexts/ViewModeContext.tsx: remove the enabled:
  boolean parameter from useViewModeState() and simplify.
- packages/studio/fixtures/storyboard-sample/README.md: drop the
  VITE_STUDIO_ENABLE_STORYBOARD=1 prefix from the preview command.

The VITE_STUDIO_ENABLE_STORYBOARD / VITE_STUDIO_STORYBOARD_ENABLED env
vars become no-ops after this change.

Co-Authored-By: Jerrai <noreply@anthropic.com>

* docs(skills): drop stale VITE_STUDIO_ENABLE_STORYBOARD reference

The Storyboard view is now available by default (the FF removed in this PR);
storyboard-format.md no longer points at the dead env var, and skills-manifest
is regenerated for the hyperframes-core hash. Closes the Via/Magi review nit.

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

---------

Co-authored-by: Jerrai <noreply@anthropic.com>
2026-06-29 22:32:52 -07:00
Miguel Ángel 9983f37c13 feat(cli): expose Studio selection through preview (#1777)
Add a small Studio selection channel so agents can ask a running preview server
for the element the user selected in Studio. This keeps the UX on the existing
npx hyperframes preview surface while giving agents a stable source file,
target selector, timeline time, and thumbnail URL for follow-up edits.
2026-06-28 15:15:57 -04:00
Miguel Ángel 1eed7a9b1f feat(studio): element groups — studio UI (#1759)
* feat(studio): element groups — source mutations

Wrap/unwrap source mutations (group geometry, the wrap-elements / unwrap-elements
routes) that the studio group feature is built on. Studio UI lands in the next PR.

* fix(studio): hoverable group interior + non-sticky drill-in

Two group selection bugs with animated members:

1) Empty space inside a group's overlay didn't hover/select the group. Members
   animated outside the wrapper's static box (110px box vs 340px member union),
   so elementsFromPoint hit only the full-bleed background there. Add a
   member-union hit-test fallback: a point inside a group's live member bounds
   resolves to that group (innermost wins).

2) After drilling into a group and selecting a child, nothing else was
   selectable — out-of-scope resolved to null. Make drill-in non-sticky:
   interacting outside the drilled group re-resolves normally and exits the
   drill-in, so a later click on the group selects it as a unit again.
2026-06-27 11:27:40 -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
Vance IngallsandClaude Opus 4.8 3861e8e9fc feat(studio): slideshow branching editor panel (#1582)
New Slideshow right-panel tab — slide list, inspector (notes + fragment
hold-points), branch tree, hotspot tool — backed by pure manifest-transform
helpers and a debounced SDK persist that writes the JSON island.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 01:33:31 -07:00
Vance IngallsandMiguel Ángel 377b0368bd fix(studio,core): resolve SDK-cutover review findings (#1471)
Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-17 16:44:45 -07:00
Vance IngallsandMiguel Ángel 39f37e8aa8 feat(studio): route timeline trim/move through SDK setTiming (§3.2) (#1466)
Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-17 16:40:07 -07:00
Vance IngallsandMiguel Ángel 8585fffc92 fix(studio): wire onTrySdkPersist to sdkCutoverPersist (cutover was unwired) (#1463)
Stage 7 s7.5 removed the feature flag and declared cutover 'always-on',
but onTrySdkPersist was never actually passed to useDomEditCommits — the
sdkCutoverPersist function was dead code in production.

Thread sdkSession through useDomEditSession params, build the
onTrySdkPersist closure there (all CutoverDeps are already in scope),
and pass sdkSession from App.tsx. Style/text/attribute/html-attribute
commits now route through SDK dispatch instead of the server patch path.

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-17 16:31:57 -07:00
Vance IngallsandMiguel Ángel ca1a8a6879 feat(studio): s7.5 — delete shadow scaffolding; keep cutover flag (dark launch) (#1462)
Removes the SDK shadow telemetry: STUDIO_SDK_SHADOW_ENABLED, sdkShadow.ts +
sdkShadowGsapFidelity/GsapKeyframe/Numeric and their tests, the runShadow*
call-sites across the GSAP/timeline hooks, and the onDomEditPersisted shadow
callback in useDomEditSession. Moves patchOpsToSdkEditOps into sdkCutover.ts.

KEEPS STUDIO_SDK_CUTOVER_ENABLED as a dark-launch kill-switch — default false,
enable per-environment via VITE_STUDIO_SDK_CUTOVER_ENABLED=true. shouldUseSdkCutover
stays flag-gated. The stack can merge with zero behavior change; cutover is
validated by flipping the flag, not by removing it.

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-17 16:27:03 -07:00
Vance IngallsandMiguel Ángel 0ca1a8a9d1 fix(studio): force-reload sdk session after undo/redo bypasses suppress window (#1524)
writeHistoryFile arms the 2 s self-write suppress window, so the
file-change event for an undo/redo write is swallowed and the SDK
in-memory doc stays on pre-undo content. Expose forceReload() from
useSdkSession (s7.4) and call it in useAppHotkeys after a successful
undo/redo that touched the active composition path.

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-17 16:20:52 -07:00
Vance IngallsandClaude Sonnet 4.6 ab7145ad9e feat(studio): stage 7 step 3c — sdk cutover for inline-style ops (#1522)
Introduces sdkCutoverPersist(): when STUDIO_SDK_CUTOVER_ENABLED is set,
inline-style PatchOps are routed through the SDK session's in-memory document
model instead of the server patch-element API. The SDK serialize() result is
written back through the same writeProjectFile + editHistory.recordEdit path,
so the on-disk output is identical to the legacy route.

- packages/studio/src/utils/sdkCutover.ts (new): sdkCutoverPersist() +
  shouldUseSdkCutover() guard; domEditSaveTimestampRef.current is stamped on
  each write to suppress the echo file-change reload.
- packages/studio/src/components/editor/manualEditingAvailability.ts: adds
  STUDIO_SDK_CUTOVER_ENABLED flag (default false); changes
  STUDIO_SDK_SHADOW_ENABLED default to false now that cutover is available.
- packages/studio/src/hooks/useSdkSession.ts: adds optional
  domEditSaveTimestampRef param; self-write suppress window (SELF_WRITE_SUPPRESS_MS)
  gates file-change reloads so SDK writes don't echo back as external edits.
- packages/studio/src/App.tsx: passes domEditSaveTimestampRef to useSdkSession
  so the suppress window can gate reloads triggered by SDK cutover writes.
- Test coverage: sdkCutover.test.ts (new, 141 lines) + useDomEditSession.test.ts
  (new, 50 lines) — guard function + happy-path assertions.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-17 16:10:07 -07:00
James RussoandClaude Opus 4.8 c8fd16f2d3 feat(studio): storyboard frame focus + voiceover iteration (#1532)
Fifth PR in the Studio storyboarding stack. Click a contact-sheet tile to
open a full-area focus on that frame.

- StoryboardFrameFocus: large poster, prev/next nav, full narrative, and an
  editable voiceover *guide* (textarea) saved back to STORYBOARD.md. Status
  can be advanced outline → built → animated inline.
- "Open in Preview" jumps to the timeline focused on the frame's
  sub-composition (setActiveCompPath + view-mode timeline).
- core/storyboard: setFrameField / setFrameVoiceover / setFrameStatus —
  surgical in-place writers that update one frame's metadata without
  re-serializing (markdown stays canonical). Tested.
- Extract shared FramePoster (used by tile + focus); tiles are now buttons
  that open focus.

Voiceover here is the editable guide; SCRIPT.md remains the locked narration
that drives TTS.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-17 15:34:44 -07:00
James RussoandClaude Opus 4.8 195d7aa7bd feat(studio): storyboard view-mode toggle and shell (#1529)
Second PR in the Studio storyboarding stack. Adds the top-level toggle
between the storyboard and the timeline/preview stage, behind the flag.

- STUDIO_STORYBOARD_ENABLED flag (VITE_STUDIO_ENABLE_STORYBOARD, default
  off) now gates the UI.
- ViewModeContext: timeline|storyboard state mirrored to the ?view= query
  param, so it survives reloads and an agent can deep-link ?view=storyboard.
- Segmented Storyboard|Preview control in StudioHeader (flag-gated).
- StudioApp swaps the whole center stage for a full-width StoryboardView
  when storyboard mode is active.
- useStoryboard hook + StoryboardView shell: global-direction header,
  loading/error/empty states. The frame contact-sheet grid lands in PR3.
- Extract StudioOverlays from App.tsx to stay within the 600-line studio
  decomposition budget.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-17 13:06:49 -07:00
ukimsanov 8b92f37635 feat(studio): add color grading inspector controls 2026-06-16 13:41:41 -07:00
Vance IngallsandClaude Opus 4.8 42696f0af4 fix(studio): make SDK shadow telemetry fire + be correct (5 fixes, E2E-verified) (#1491)
* fix(studio): open SDK shadow session in master view (was never opening)

useSdkSession(projectId, activeCompPath) received activeCompPath=null in the
master/entry view — the studio's convention where null means index.html
(isMasterView = !activeCompPath || activeCompPath === "index.html"). The hook's
guard `if (!projectId || !activeCompPath) return` then bailed, so the SDK
session never opened in the default editing surface. Result: sdkSession was
null there → every shadow tap (onDomEditPersisted, onElementDeleted, timing,
gsap) was undefined/no-op → zero sdk_shadow_dispatch telemetry for master-view
edits (the common case). Shadow only fired when a sub-comp was explicitly
opened (which sets activeCompPath).

Resolve null → "index.html" (matching the existing convention used by
isMasterView and blockInstaller) so the session opens in master view.

Verified live: instrumenting the hook showed phase "skipped_no_ids"
(activeCompPath null) before, "opened" after.

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

* fix(studio): shadow property parity — read camelCase style key, not kebab

The inline-style parity resolver read flat.styles[op.property] with the
kebab-case PatchOperation key ("background-color"), but ElementSnapshot
inlineStyles are camelCase ("backgroundColor"), so the read-back was always
null → a false value_mismatch on every hyphenated CSS property. Single-word
props (color, opacity) coincide, so unit tests missed it.

Found live: a color edit on a box emitted op:property mismatchCount:1 with
{property:"background-color", expected:"rgb(255,79,88)", actual:null}. Convert
kebab→camel for the read-back (fall back to the raw key).

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

* fix(studio): emit op:delete shadow for timeline-clip deletes

The Delete/Backspace hotkey routes to handleTimelineElementDelete whenever a
timeline element is selected (useAppHotkeys: `if (selectedElementId) {
handleTimelineElementDelete(el); return; }`), returning before the
shadow-wired handleDomEditElementDelete. Every clip is a timeline element, so
clip deletes — the common case — emitted no op:delete; the delete shadow only
fired for a non-timed DOM selection.

Add runShadowDelete(sdkSession, element.hfId) to handleTimelineElementDelete's
success path, mirroring the move/resize timing taps.

Verified live (browser-use): deleting a clip now emits
sdk_shadow_dispatch op:delete dispatched:true mismatchCount:0.

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

* fix(studio): match GSAP fidelity tweens by resolved element, not raw selector

gsap_fidelity keyed tweens by id (targetSelector-method-position). On tween
ADD, the SDK writer emits [data-hf-id="X"] selectors while the server emits
class selectors (.x) for the same element — different ids → false
present/absent mismatch (mc:2) on every add. Update/remove were clean (the
tween already existed with one consistent selector).

Key by resolved element (selector → data-hf-id via the pre-op DOM) + method +
position, so equivalent tweens match and only real value drift registers.
Falls back to raw selector when resolution isn't possible.

Found live (browser-use): adding a tween emitted gsap_fidelity mc:2 with
{[data-hf-id="hf-b"]-to-0 present-only} + {.b-to-0 present-only}.

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

* fix(studio): don't shadow studio-internal data-hf-* marker attributes

Property-path parity false-mismatched on canvas-drag (path-offset) edits, which
emit attribute ops like {property:"data-hf-studio-path-offset"}:
1. The name was built as `data-${op.property}` → double-prefix
   "data-data-hf-studio-path-offset".
2. The SDK model excludes all data-hf-* attributes, so even the right name
   reads back null → false value_mismatch.

attrName() prefixes only when needed; isShadowableOp() drops data-hf-* attribute
ops (studio-internal markers the SDK can't represent), filtered in
sdkShadowDispatch before dispatch + parity.

Code-confirmed via handleDomPathOffsetCommit → commitPositionPatchToHtml →
persistDomEditOperations → onDomEditPersisted; live repro blocked because the
test comp's elements were GSAP-animated (drags route to the GSAP path).

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

* docs(studio): document tweenKey + selector-resolver ceilings (PR review)

Per review (Rames, non-blocking): name the two silent fail-modes in the GSAP
fidelity diff rather than build speculative disambiguators (not observed in
studio-emitted templates).

- tweenKey: coincident tweens (same element+method+position) collapse, last
  wins. Props can't join the key — a matched pair must share a key for the
  field-diff to run. Upgrade path: property-name hash.
- makeSelectorResolver: first-match heuristic; ambiguous shared-class selectors
  may misunify. Upgrade path: querySelectorAll + uniqueness.

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

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-16 01:56:12 -07:00
Vance IngallsandClaude Opus 4.8 8f15e9f09b feat(studio): extend SDK shadow to delete/timing/gsap-add + default on (#1473)
* feat(studio): default SDK shadow dispatch on for parity telemetry

Shadow mode keeps the server patch path authoritative (no user-visible
change) and emits sdk_shadow_dispatch parity signal. Default it on so we
collect addressing/serialize-drift telemetry from all traffic before any
cutover. Disable via VITE_STUDIO_SDK_SHADOW_ENABLED=false.

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

* feat(studio): shadow parity for delete/timing/gsap ops + wire delete

Extends shadow visibility past the property-edit path. Adds a can()-first
shadow core (pure addressing/validity pre-check, works even for GSAP which
has no snapshot value) plus runShadowDelete/runShadowTiming/runShadowGsapTween.
Parity coverage: delete = getElement null (full); timing = snapshot
start/duration/trackIndex (full); gsap = can()+dispatch+returned-id only
(animationIds is a stub, tween values are script-level — full fidelity needs
serialize() round-trip diffing, out of scope).

Wires the delete runner end-to-end via an onElementDeleted callback
(useDomEditSession → useDomEditCommits → useElementLifecycleOps), fired after
the server delete succeeds. Server stays authoritative. Timing/GSAP wiring
follows (each needs threading sdkSession into useTimelineEditing /
useGsapScriptCommits).

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

* feat(studio): wire timing + GSAP-add shadow dispatch

Timing: thread sdkSession into useTimelineEditing; fire runShadowTiming after
move/resize persist (server authoritative). Moved the useSdkSession call above
useTimelineEditing so both share the single session (no duplicate).

GSAP: thread sdkSession through useGsapScriptCommits → useGsapAnimationOps;
shadow addGsapAnimation via runShadowGsapTween after the server add. Only the
add path is shadowed — delete/update key on the server's animationId, which
doesn't resolve in the SDK's independent id-space (would emit false
cannot_dispatch). "set" has no SDK method, so it's skipped.

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

* fix(studio): address #1473 review — no-persist shadow session + fallow gate

Blocker (Rames): the shadow runners dispatched on the live persisted SDK
session, so each shadow op fired the persist queue → an HTTP write of the SDK's
serialize() output, clobbering the studio's authoritative write (default-on
shipped this). Fix: open the shadow session WITHOUT persist — it reads from the
server but never writes back. Shadow dispatches mutate the in-memory model only
and are discarded on the next reload-on-change. Cutover (Step 3c+) must re-add
persist together with self-write suppression. No persist consumer exists in
this stack (cutover is not in main), so this is safe and keeps default-on.

Fallow CI gate (Miguel):
- drop unused `export` on RecordEditInput (dead-type)
- suppress pre-existing CRAP with reasons: commitMutation, addGsapAnimation;
  file-level complexity on useTimelineEditing (shadow .then() branches nudge
  several callbacks over threshold — telemetry-only)
- suppress 3 pre-existing clones surfaced by adjacent edits (save-error
  formatter, prop-drilling passthrough, file-change reload handler)

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

* fix(studio): scrub user content from shadow property-path telemetry

Addresses #1473 review concern (Rames): inline-style and text-content edits
put user content into the sdk_shadow_dispatch mismatch expected/actual fields.
Redact before emit — text-content values fully redacted (length only), others
length-capped at 64. The in-memory parity result keeps raw values, so the
parity logic and tests are unaffected.

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

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 18:08:29 -07:00
69aa595f38 feat(studio): stage 7 step 3b — SDK shadow dispatch parity mode (#1450)
* feat(studio): stage 7 step 3b — SDK shadow dispatch parity mode

Wire onDomEditPersisted callback from useDomEditCommits into useDomEditSession,
calling reportShadowDispatch (flag-gated via VITE_STUDIO_SDK_SHADOW_ENABLED) to
dispatch equivalent SDK ops alongside the server patch path and emit
sdk_shadow_dispatch telemetry with mismatch details.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* fix(studio/sdkShadow): catch dispatch errors, return dispatch_error mismatch

Wrap the dispatch loop in try/catch so a throwing SDK dispatch never
propagates to Studio UX. Returns dispatched:false with kind="dispatch_error"
and the error message for telemetry. One new TDD test (RED→GREEN verified).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(studio): batch shadow dispatch, rename runShadowDispatch, add PatchOperation import

Wrap the shadow dispatch loop in session.batch() so a mid-loop throw
cannot leave the SDK session in a partially-applied state. Without the
batch boundary, one failing op would update some elements but not
others, diverging the shadow session from the real one.

Rename reportShadowDispatch → runShadowDispatch to eliminate the
misleading 'report' prefix — the function mutates the SDK session, it
is not read-only. Update the only caller (useDomEditSession).

Add missing PatchOperation import to useDomEditCommits (the type was
already used in the onDomEditPersisted interface but never imported).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>

* docs(studio/sdkShadow): note persist:error drift risk in parity comparisons

Also remove unused re-exports from useDomEditCommits (GSAP_CSS_FALLBACK_BLOCKED_MESSAGE
and PersistDomEditOperations — fallow confirmed 0 consumers) and suppress the
Vite ?raw import in sdk-playground that fallow can't resolve statically.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: Miguel Ángel <miguel07alm@protonmail.com>
2026-06-15 15:38:35 -07:00