Pass SelectionManager to setupDragDrop and setupPaste. After each
upload completes, the newly created scene items are selected:
- Single file/URL: selectOnly
- Multi-file drop/paste: select all new items
- Background media worker: polls media_jobs table, runs ffprobe+ffmpeg
with concurrency limit, generates video posters, emits socket events
- Non-blocking video upload: stores file + enqueues job, returns immediately
- Poster hydration on board load: GET /boards/:id injects poster/dimensions
from DB into canvas_state video objects
- SpatialGrid: fixed-cell (512px) spatial hash for O(nearby) culling instead
of O(all) item scanning, eliminates setTimeout violations
- Canvas-based video rendering: draws video frames to offscreen canvas then
uploads to GPU, completely eliminates GL_INVALID_OPERATION errors from
PixiJS VideoSource auto-update mechanism
- Server poster upgrade path: culling ticker and applyProcessedMedia() both
upgrade client-captured posters to server posters when available
- Pause restores server poster (paused video behaves like an image)
- Selection drag-end persistence: onObjectDragEnd broadcasts + saves + undo
- Live media:job:update socket handler patches scene data + VideoSprite
dimensions without broadcast fanout
Video memory:
- Lazy <video> creation: constructor makes placeholder only, initVideo()
creates element with preload='metadata' when near viewport
- Tiered budgets: 1 playing / 6 initialized / 4 poster textures max
- Aggressive teardown: offscreen videos lose <video> element, poster,
and all textures — zero memory for offscreen videos
- Poster textures dropped while playing (don't keep both resident)
- Dimension caching in scene data (nativeW/nativeH) avoids re-init
Server:
- HTTP Range support (206 Partial Content) for video seeking
- Proper end clamping and invalid range rejection (416)
Sync:
- Remove redundant broadcastSceneDebounced() from broadcastTransform()
- Remove duplicate broadcastElements() from drag-end handler
VideoControls:
- Event-driven (timeupdate/play/pause/seeked) instead of rAF polling
- Tracks actual HTMLVideoElement reference, rebinds on init/teardown
- Seek uses ref-based commit on pointerUp, not conditional onChange
- Add onDragOver/onDrop preventDefault on container div (React level)
to always block browser default file-open behavior
- Add DOM fallback in useCanvasSetup if ref is somehow null
- setupDragDrop's native listeners handle the actual upload logic
The drag/drop setup was searching for a <canvas> element to find its
parent, which was fragile and could fail (returning null). When it
failed, document-level dragover/drop prevention was never registered,
so the browser's default behavior (open file in new tab) kicked in.
Fix: pass a direct ref to the outer canvas container div from Editor
to useCanvasSetup. No more DOM querying for the drop target.
Replace broadcastSceneNow() with incremental element:update for all
property-modifying operations (align, arrange, flip, resize, rotate,
normalize, frame color). Full scene sync now only fires via debounced
fallback (500ms) for structural changes (add/remove/paste/group).
Changes:
- onCanvasChange() accepts optional changedIds for incremental sync
- SelectionToolbar, context menu, shortcuts all pass item IDs
- TransformBox.onDragEnd passes item IDs instead of full scene
- ShortcutContext, MenuContext, hook interfaces updated
This dramatically reduces sync traffic during normal editing — only
the changed elements are sent instead of the entire board state.
- Skip thumbnail generation when scene has >50 items (extract.canvas
on full viewport with many textures causes GPU OOM and context loss)
- Add WebGL context lost/restored handlers — auto-reload scene on recovery
- Reduce texture memory budget from 512MB to 256MB for GPU headroom
- Batch broadcastTransform: sends all selected items in one emit instead
of throttle-dropping all but the first (multi-select drag now syncs all)
- TransformBox onDragEnd: persist+sync final state after resize/rotate
(was only broadcasting ephemeral transforms, never the final position)
- Layer lock toggle: add missing onCanvasChange() call for sync+save
- Receiver handles both batched and legacy single-item transform formats
Introduces TextEditor utility that overlays a styled <textarea> matching
the PixiJS Text object's font, size, and color. Hides the PixiJS text
while editing, commits on blur/Enter, cancels on Escape, and updates
dimensions from measured bounds on save.
Hiren Kangad