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fix autozoom #1291

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Merged
Evanfeenstra merged 1 commit into from
May 20, 2026
Merged

fix autozoom #1291

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13 changes: 11 additions & 2 deletions gateway/internal/adminapi/ui/src/pages/Canvas.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -398,7 +398,16 @@ export function Canvas() {
const [selectedID, setSelectedID] = useState<string | null>(null);

const rows = matrix.data?.results ?? [];
const canvas = useMemo(() => buildCanvas(rows), [rows]);
// Defer building the canvas until the matrix has loaded. The
// SystemCanvas auto-fits to content on its first non-empty render
// and never re-fits while the canvasRef stays the same, so if we
// fed it the gateway+providers stub while `rows` was still empty,
// the fit would zoom in tight on those 5 nodes — and the
// agent/user nodes would land off-screen when the data arrives.
const canvas = useMemo(
() => (matrix.data ? buildCanvas(rows) : { nodes: [], edges: [] }),
[rows, matrix.data],
);

const selectedNode = selectedID
? canvas.nodes?.find((n) => n.id === selectedID) ?? null
Expand All @@ -409,7 +418,7 @@ export function Canvas() {
// anchors the absolutely-positioned WindowPicker overlay.
return (
<div
style="position: relative; height: 100%; margin: calc(-1 * var(--sp-5)) calc(-1 * var(--sp-6));"
style="position: relative; height: calc(100vh - 56px); margin: calc(-1 * var(--sp-5)) calc(-1 * var(--sp-6));"
>
<SystemCanvas
canvas={canvas}
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