- caption-emoji-pop: shadowForColor now builds its glow via color-mix()
instead of hex-pair slicing, so the strict 6-digit brand-color gate is
gone — any CSS color the sibling templates accept (#fff, rgb(), named)
now renders instead of silently falling back to the default palette
- caption-weight-shift: fitFontSize now sizes against the WIDEST split
line rather than the joined group text (two-line groups no longer shrink
unnecessarily), and avoidSingleWordGroups' merges re-check fitsInTwoLines
like makeGroups' first pass does (merged groups can no longer overflow
the split budget)
- all 5: hfApplyStageConfig clamps resolution to the published validator's
<=8192 bound (validator is optional pre-flight; unbounded stages OOM
render workers), and fit floors carry a comment documenting that the
minimum size is returned unverified by design
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Two review findings on the caption-data runtime, applied to all 5 templates:
- hfValidate's version gate used Math.floor(Number(v)) > HF_CONTRACT_VERSION,
and Number("v2") is NaN — NaN comparisons are always false, so malformed
versions slid through with no unsupported-version signal. An explicit
Number.isFinite check closes it.
- hfBoot's sibling-fetch .then called hfAttach unconditionally; a manual
window.__HF_CAPTION_ATTACH__ call landing while the fetch or fonts.ready
was still pending got clobbered by the late boot payload. Boot now yields
if a timeline already exists.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
hfApplyStageConfig (Block B, verbatim across all 5 retrofitted caption
identities) only ever set --hf-caption-primary/--hf-caption-accent when the
corresponding brand.primaryColor/accentColor key was present, with no else
branch to clear it when absent. Re-attaching a brand-less payload after a
branded one left the custom property (and any JS-cached color derived from
it, e.g. caption-pill-karaoke's hfColorActive and caption-emoji-pop's
hfAccentColors) stuck at the stale value instead of reverting to the CSS
fallback, violating idempotent re-attach.
Also removes caption-editorial-emphasis's dead .word--italic CSS rule and
CLASS_MAP.i entry — hfMakeBlocks only ever emits "n"/"e" tags, "i" was only
reachable via the old hand-authored BLOCKS literal this task replaced.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Replaces the hardcoded RAW_GROUPS index-pair array with hfMakeGroups, a
real fitting/pause/punctuation-based grouper, and wires the component
into the shared caption-data runtime (validate/gate/attach). Adds CSS
brand hooks: .hl-word text color from --hf-caption-primary, .hl-word-bg
gradient from --hf-caption-accent (second stop via color-mix()).
Caption components are overlays — their root element should not
intercept pointer events, allowing clicks to pass through to the
underlying composition content in Studio.
Replace opaque backgrounds (#0a0a0a, #000, #000000) with transparent
on both html/body and the composition root div for all 15 caption
components. Captions are overlays — opaque backgrounds cover the
underlying video when loaded as sub-compositions.
Timeline locking:
- Add data-timeline-locked attribute support — fully disables move,
trim-start, and trim-end in Studio for clips that carry this attr
- Runtime propagates the attribute from inner composition root to host
element so component authors control it from their HTML
- All 15 caption components in the registry now carry the attribute
Font fix:
- Extract <link rel="stylesheet"> and <link rel="preconnect"> from
sub-composition <head> alongside existing <style>/<script> extraction
- Fixes caption components (and any sub-comp using Google Fonts via
<link> tags) losing their font-family when loaded as sub-compositions
- Applied in both runtime (compositionLoader) and compiler
(inlineSubCompositions) paths
Adds a Blocks tab to the Studio left sidebar with the full 78-item registry
catalog (58 blocks + 20 components). Users can browse by category, search by
title/description, preview CDN-hosted poster thumbnails with video-on-hover,
and install items on-demand with one click or drag-to-timeline.
Core changes:
- BlockCategory type + resolveBlockCategory() for 7 categories (Captions, VFX,
Transitions, Effects, Social, Data, Scenes)
- Registry API routes: GET /api/registry/blocks (catalog) + POST install
- StudioApiAdapter extended with listRegistryCatalog + installRegistryBlock
- Vite adapter reads from disk; CLI adapter fetches from GitHub (24h cache)
- BlockParam interface + params on 6 blocks for future parameter controls
Studio UI:
- 4th sidebar tab "Blocks" with responsive grid, category pills, search bar
- BlockCard: CDN poster thumbnail, video autoplay on hover, duration + WebGL badges
- On-demand install: blocks append as sub-compositions on timeline; components
overlay at start=0 spanning full duration with transparent background patching
- TIMELINE_BLOCK_MIME drag-and-drop to timeline
- BlockParamsPanel (Phase 3 scaffold) auto-opens for parameterized blocks
Registry manifests:
- All 58 blocks backfilled with preview: { video, poster } CDN URLs
- All 20 components normalized to object format + poster URLs added
- 6 blocks annotated with params (Liquid Glass/Background, Portal, Chart,
Logo Outro, Magnetic)
- flowchart-vertical preview generated and uploaded to CDN
Upload re-rendered videos with -v2 filenames to bypass CloudFront
immutable cache. Replace gradient-fill with improved version from
sandbox composition.
- clip-wipe: slower reveal (0.3s), longer hold, smoother exit
- glitch-rgb: 2.5x larger RGB split, stronger scanlines, more dramatic jitter
- gradient-fill: smoother word transitions (0.15s), longer exit
- typewriter: extended group hold times so text lingers on screen
- weight-shift: per-word font-weight animation (200→900), was broken
with only line-level shift that never triggered on single-line groups
- Add caption-highlight: red background sweep behind active word (TikTok-style)
- Re-rendered and uploaded preview videos for all 6 components
