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kanban/backend/dist/index.html
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egutierrez 7ba18f9114 fix(kanban): infinite ref-merge loop + drag lag
Two issues:

1. "Maximum update depth exceeded" inside Mantine's useMergedRef during
   drag. Root cause: the `data` object passed to dnd-kit's `useSortable`
   in KanbanCard and KanbanColumn was re-created on every render. Mantine
   Paper composes its internal ref with the consumer ref via
   useMergedRef, which uses a useCallback whose deps array contains the
   refs themselves. Whenever the underlying setNodeRef from useSortable
   became unstable (because dnd-kit's internal state churned on data
   identity change), the merged ref was reassigned each commit -> setState
   inside the ref callback -> next render -> new data identity -> loop.
   Wrap the sortable data in useMemo keyed on its real inputs.

2. Drag feels laggy. Each card listens to a 1-second `now` clock that
   re-renders the entire board to refresh the "time in column" label.
   Pause that interval while a drag is active so dnd-kit's per-pixel
   reconciliation does not also re-mount/re-layout every card every
   second. Tick resumes the moment the drag ends.

Also move the Select `data` array for the column max-time popover from
an inline expression to a module-level constant; same array identity
across all column instances and renders -> Mantine Combobox stops
re-running its diffing effect for free.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-14 17:57:14 +02:00

14 lines
391 B
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Kanban</title>
<script type="module" crossorigin src="/assets/index-DfDr7FVp.js"></script>
<link rel="stylesheet" crossorigin href="/assets/index-b0xjFtx2.css">
</head>
<body>
<div id="root"></div>
</body>
</html>