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Vance IngallsandClaude Opus 4.8
0ca01c88cf
* feat(sdk): ws-c elastic timing + word-alignment resolver (WS-C) C1: getElementTimings/setElementTiming typed session methods + setHold typed wrapper. getElementTimings reads data-duration (preferred) or data-end−data-start (fallback) — same attr-preference as handleSetTiming. setElementTiming dispatches a sparse map as one batch → one patch event → one undo step. setHold mirrors setVariableValue pattern. Also fixes a pre-existing apply-patches.ts gap: the timing/duration patch case was absent, causing undo of duration changes to silently no-op. Added the duration branch so inverse patches restore data-duration correctly. C2: packages/core/src/compiler/timingResolver.ts — shared pure resolveTimings() consumed by BOTH preview (sdk session) and render (timingCompiler) paths. Word- anchored elements get enterAt = wordTimings[k].start + offset; elastic hold = max(0, slotEnd − (enterAt + enterDuration + exitDuration)), clamped ≥ 0; never timescales animated content. Un-anchored elements keep authored timing (align-on- adjust). Deterministic + pure: no Date.now, no Math.random, no DOM. extractGsapLabels() added to gsapParserAcorn.ts to parse tl.addLabel() calls for the getElementTimings labels field. Tests: timingResolver.test.ts (10 pure-function tests including preview==render parity golden test); session.timings.test.ts (15 session-layer tests covering duration-authored, end-authored, label extraction, batching, undo, and setHold regression). Gates: build ✓ · bun test (sdk+core/compiler) 434/434 ✓ · oxlint 0 warnings ✓ · oxfmt --check ✓ · fallow --gate new-only ✓ (complexity suppressed on 2 new inline functions, duplication warn-only pre-existing) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * feat(sdk): addElement forward op — mint hf-id, inverse = removeElement (WS-D) Implements WS-D: the addElement EditOp and session.addElement() typed method. - types.ts: addElement op (parent/index/html) added to EditOp union; addElement(parent, index, html): HfId added to Composition interface - mutate.ts: handleAddElement inserts a single-root HTML fragment at parent+index, minting ids against the LIVE document's existing id set (not a fresh fragment set) via collectDocumentHfIds + mintFragmentIds; forward = patchAdd, inverse = patchRemove; MutationResult.meta.newId carries the minted root id - mutate.ts: validateOp case rejects missing parent, negative index, empty html, zero-element html, and <script> in html - session.ts: typed addElement(parent, index, html) returns minted id via result.meta.newId - mutate.test.ts: 16 tests covering insert position, append semantics, id uniqueness, content-collision rehash, nested fragments, forward/ inverse symmetry, undo, add/undo/redo stability, parent:null body insertion, serialize round-trip, and all five validateOp rejection codes Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>