Replace the thin single-action-per-layer model with real interactive
logic:
- Cards gain onEnter/onExit chains; layers gain an onClick chain. Each is
an ordered action chain, not a single link.
- v1 action set: goto-card, go-back, open-url, show-layer, hide-layer,
toggle-layer — reveals, secret panels, multi-step buttons, branching.
- New action-builder surface: a no-JSON panel with reorderable rows,
id-based target pickers, and authoring warnings.
- Runtime tracks a per-card layer-visibility map (reset on re-entry) and
executes chains; action overlay regions are focusable buttons.
- Safety: onEnter/onExit cannot navigate (no enter->goto->enter loops);
chains capped and non-recursive; unknown action types ignored.
- Re-phased A (format) -> B (behaviour authoring) -> C (runtime) ->
D (route) -> E (stack logic: variables/conditionals, future tier).
Interactivity stays a declarative, interpreted attribute of existing
layers — no new layer types, no HTML/JS, no eval.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
- Aspect-ratio changes now re-fit cards via the existing import-letterbox
remap instead of stranding layers off-canvas; imports target the
stack's aspect, not a hardcoded 16:9.
- Clarify how the shared deck renderer is fed for stacks (dims from
stack, background from card) and startCard deletion fallback.
- Viewer: action regions are focusable buttons (Tab/Enter, screen
readers); empty-space clicks are no-ops; goto-card keywords clamp at
the ends; touch taps act as clicks; persist the edited card before
launching; encrypted-stack locked state on the /p/ route.
- Fix the hit-testing risk note (rotation is exact; only clip-masked
layers fall back to a bounding box) and add an accessibility row.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
Spec for "HyperCard for Nostr" — fullscreen interactive card stacks built
as a focused extension of the Slide Deck: a new templateMode 'stack'
reusing the deck card-container engine, with a per-stack aspect ratio,
optional per-layer actions (goto-card / open-url), transparent hotspots,
and a fullscreen interactive viewer with click routing. Declarative
safe schema only — no HTML/JS. Phased A-D plus a /p/<naddr> viewer route.
Also index both PRIVATE_PUBLISHING_FEATURE.md and STACKS_FEATURE.md under
the drafted-but-unbuilt features in TODO.md.
Co-Authored-By: Claude Opus 4.7 <[email protected]>
