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Wall editor: replaces the small grid with a Figma-style pan/zoom canvas. Each display is a rectangle that can be dragged/resized to match its physical arrangement; a separate semi-transparent player rect overlays the screens and defines what content plays where. Drag empty space to pan, wheel to zoom, "Center" button auto-fits content. Per-rect numeric x/y/w/h panel; arrow keys nudge by 1px (10px with shift). Negative coordinates supported for screens offset above/left of the origin. Coords rounded to integers on save. Wall rendering: each device receives screen_rect + player_rect, maps the player into its viewport with vw/vh and object-fit:fill so vertical position of every source pixel is identical across devices that share viewport height. Leader emits wall:sync at 4Hz with sent_at timestamp; followers apply latency-adjusted target and use playbackRate ±3% for sub-300ms drift, hard-seek for >300ms. Followers stay muted; leader unmutes via gesture with AudioContext priming and pause+play retry to bypass Firefox autoplay. "Tap to enable audio" overlay as a final fallback. Reconnect handling: server re-evaluates leader on device:register so the top-left tile reclaims leadership when it returns. Followers emit wall:sync-request on entering wall mode (incl. reconnect) so they snap to position immediately instead of drifting until the next periodic tick. Group dissolve: removing a device from its last group clears its playlist to mirror wall-leave semantics. Leaving a group with playlists on remaining groups inherits the next group's playlist. Dashboard: walls render as their own card section (hidden the device cards they contain). Multi-select checkboxes on cards + "Create Video Wall" toolbar action that creates the wall, removes devices from groups, and opens the editor. dashboard:wall-changed broadcast triggers live re-render. Per-card playback progress bar driven by play_start events forwarded from devices. Security: PUT /walls/:id/devices verifies caller owns each device (or has team-owner access via the widgets pattern), preventing cross-tenant device takeover. wall:sync and wall:sync-request validate that the sending device is a member of the named wall; relay re-stamps device_id with currentDeviceId so clients can't spoof or shadow-exclude peers. Schema: video_walls += player_x/y/width/height, playlist_id; video_wall_devices += canvas_x/y/width/height. All idempotent migrations. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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