The Live Slideshow already covers the core of #202 (fullscreen kiosk,
live-appending new uploads, timing/transitions/watermark, per-event
opt-in via the share link). This adds the two customization dimensions
the reporter also asked for:
- **Play order** (show_order): 'chronological' (upload order, default) or
'random' — the client shuffles the initial set (Fisher-Yates) so
live-appended uploads keep working.
- **Category filter** (show_category_id): restrict the slideshow to a
single photo category (NULL = all photos, default). Enforced
server-side on the slideshow /photos access and mirrored in the
/session + /state photo_count, so the kiosk viewer can't widen the set.
Per-event enable/disable (default off) is unchanged — it's the existing
'Generate/Disable slideshow link' flow (no token = no slideshow).
- Migration 158: show_order (default 'chronological') + show_category_id.
- Admin: Play-order dropdown + category picker in the Live Slideshow card
(picker hidden for events without categories); EN + DE i18n.
- Verified: migration (SQLite + PG); live API (category filter → 3/2/5
photos + matching count; order propagates) and the running kiosk
requests exactly the filtered set; tsc clean, 136 backend tests pass.
The slideshow display preset (transition / interval / speed / color filter) was
set PER EVENT TYPE in the Edit Event Type dialog. Replace it with a single
picpeak-wide default in Settings -> Slideshow ("Default style for new
slideshows"). New events seed their show_* columns from this global preset
(was: from the event type's slideshow_preset); the per-event override is
unchanged.
- Removed event_types.slideshow_preset usage everywhere (EventTypeModal section,
eventTypes.service types, eventTypeService whitelist, adminEventTypes
validators/POST). The DB column from migration 138 is left inert.
- Global preset stored in app_settings (slideshow_interval_ms/transition/
transition_ms/colorfilter), saved via PUT /admin/settings/slideshow.
- adminEvents create-seeding now reads the global preset (getAppSetting) instead
of the event type.
- en/de: presetTitle + presetHint.
object-fit was hardcoded to 'cover', which crops portrait photos heavily. Add a
global `slideshow_fit` setting (Settings -> Slideshow): 'cover' fills + crops,
'contain' shows the whole image with black bars (no crop). Default 'cover'
(unchanged). Stored in app_settings (no migration), resolved server-side into
the slideshow settings + /state poll so a running projector picks it up live.
The watermark look (logo / position / opacity / style) was configurable in three
places — the global Settings tab, the per-event-type preset, and the per-event
card. Consolidate it to ONE: the global Settings -> Slideshow tab. Per-event and
per-event-type now carry only the watermark MODE (inherit / on / off) — the
override structure — and render with the global look.
- New global "Size (% of screen)" control (slideshow_watermark_size, vmin-based)
so the logo can be scaled; resolved server-side into the watermark payload and
applied to the kiosk <img>.
- Backend slideshowSettings resolves the whole look from app_settings always;
per-event show_watermark only toggles enabled. adminEvents PATCH + type-preset
seeding no longer accept/seed per-event look fields; unused enums removed.
- Frontend SlideshowStyle drops the look fields (mode only); SlideshowStyleFields
watermark section is a single mode select with a "configured under Settings"
hint; SlideshowSettingsCard + Event type cleaned up.
- en/de: watermarkSizeLabel + watermarkModeHint.
(events.show_watermark_{source,position,opacity,style} columns from migration
138 are left in place but inert — the look is global now.)
- /gallery/:slug/show/:token route + SlideshowPage: splash -> fullscreen kiosk,
crossfade/cut/slide/kenburns/dip-to-white/dip-to-black transitions, color
filters, white/original logo watermark overlay, contain/letterbox, cursor
auto-hide, quiet-append of new uploads, live settings poll, and decode-ahead
preload (first slide decoded before playback) so transitions do not struggle.
- slideshow.service for session/state + shared style types.
Paul Nothaft