refactor(canvas): extract flow reconciliation helpers

This commit is contained in:
2026-04-03 20:42:47 +02:00
parent 16ad9e48f4
commit 928fd81904
4 changed files with 484 additions and 250 deletions

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@@ -0,0 +1,117 @@
import type { Edge as RFEdge, Node as RFNode } from "@xyflow/react";
import { describe, expect, it } from "vitest";
import type { Id } from "@/convex/_generated/dataModel";
import {
reconcileCanvasFlowEdges,
reconcileCanvasFlowNodes,
} from "@/components/canvas/canvas-flow-reconciliation-helpers";
const asNodeId = (id: string): Id<"nodes"> => id as Id<"nodes">;
describe("canvas flow reconciliation helpers", () => {
it("carries an optimistic edge while a pending connection create awaits convex edge sync", () => {
const previousEdges: RFEdge[] = [
{
id: "optimistic_edge_req-1",
source: "node-source",
target: "optimistic_req-1",
},
];
const result = reconcileCanvasFlowEdges({
previousEdges,
convexEdges: [],
convexNodes: [
{ _id: asNodeId("node-source"), type: "image" },
{ _id: asNodeId("node-real"), type: "prompt" },
],
previousConvexNodeIdsSnapshot: new Set(["node-source"]),
pendingRemovedEdgeIds: new Set(),
pendingConnectionCreateIds: new Set(["req-1"]),
resolvedRealIdByClientRequest: new Map(),
localNodeIds: new Set(["node-source"]),
isAnyNodeDragging: false,
colorMode: "light",
});
expect(result.edges).toEqual([
{
id: "optimistic_edge_req-1",
source: "node-source",
target: "node-real",
},
]);
expect(result.inferredRealIdByClientRequest).toEqual(
new Map([["req-1", "node-real"]]),
);
});
it("remaps optimistic endpoints to resolved real node ids", () => {
const previousEdges: RFEdge[] = [
{
id: "optimistic_edge_req-2",
source: "optimistic_req-2",
target: "node-target",
},
];
const result = reconcileCanvasFlowEdges({
previousEdges,
convexEdges: [],
convexNodes: [
{ _id: asNodeId("node-real"), type: "image" },
{ _id: asNodeId("node-target"), type: "prompt" },
],
previousConvexNodeIdsSnapshot: new Set(["node-real", "node-target"]),
pendingRemovedEdgeIds: new Set(),
pendingConnectionCreateIds: new Set(),
resolvedRealIdByClientRequest: new Map([["req-2", asNodeId("node-real")]]),
localNodeIds: new Set(["node-target"]),
isAnyNodeDragging: false,
colorMode: "light",
});
expect(result.edges).toEqual([
{
id: "optimistic_edge_req-2",
source: "node-real",
target: "node-target",
},
]);
});
it("cleans up matched local position pins once convex catches up", () => {
const previousNodes: RFNode[] = [
{
id: "node-1",
type: "image",
position: { x: 120, y: 80 },
data: {},
},
];
const incomingNodes: RFNode[] = [
{
id: "node-1",
type: "image",
position: { x: 120, y: 80 },
data: {},
},
];
const result = reconcileCanvasFlowNodes({
previousNodes,
incomingNodes,
convexNodes: [{ _id: asNodeId("node-1"), type: "image" }],
deletingNodeIds: new Set(),
resolvedRealIdByClientRequest: new Map(),
pendingConnectionCreateIds: new Set(),
preferLocalPositionNodeIds: new Set(),
pendingLocalPositionPins: new Map([["node-1", { x: 120, y: 80 }]]),
pendingMovePins: new Map(),
});
expect(result.nodes).toEqual(incomingNodes);
expect(result.nextPendingLocalPositionPins.size).toBe(0);
});
});

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@@ -0,0 +1,318 @@
import type { Edge as RFEdge, Node as RFNode } from "@xyflow/react";
import type { Doc, Id } from "@/convex/_generated/dataModel";
import { convexEdgeToRF, convexEdgeToRFWithSourceGlow } from "@/lib/canvas-utils";
import {
applyPinnedNodePositionsReadOnly,
clientRequestIdFromOptimisticEdgeId,
clientRequestIdFromOptimisticNodeId,
isOptimisticEdgeId,
isOptimisticNodeId,
mergeNodesPreservingLocalState,
OPTIMISTIC_NODE_PREFIX,
positionsMatchPin,
rfEdgeConnectionSignature,
} from "./canvas-helpers";
type FlowConvexNodeRecord = Pick<Doc<"nodes">, "_id" | "type">;
type FlowConvexEdgeRecord = Pick<
Doc<"edges">,
"_id" | "sourceNodeId" | "targetNodeId" | "sourceHandle" | "targetHandle"
>;
export function inferPendingConnectionNodeHandoff(args: {
previousNodes: RFNode[];
incomingConvexNodes: FlowConvexNodeRecord[];
pendingConnectionCreateIds: ReadonlySet<string>;
resolvedRealIdByClientRequest: ReadonlyMap<string, Id<"nodes">>;
}): Map<string, Id<"nodes">> {
const nextResolvedRealIdByClientRequest = new Map(args.resolvedRealIdByClientRequest);
const unresolvedClientRequestIds: string[] = [];
for (const clientRequestId of args.pendingConnectionCreateIds) {
if (nextResolvedRealIdByClientRequest.has(clientRequestId)) continue;
const optimisticNodeId = `${OPTIMISTIC_NODE_PREFIX}${clientRequestId}`;
const optimisticNodePresent = args.previousNodes.some(
(node) => node.id === optimisticNodeId,
);
if (optimisticNodePresent) {
unresolvedClientRequestIds.push(clientRequestId);
}
}
if (unresolvedClientRequestIds.length !== 1) {
return nextResolvedRealIdByClientRequest;
}
const previousIds = new Set(args.previousNodes.map((node) => node.id));
const newlyAppearedIncomingRealNodeIds = args.incomingConvexNodes
.map((node) => node._id as string)
.filter((id) => !isOptimisticNodeId(id))
.filter((id) => !previousIds.has(id));
if (newlyAppearedIncomingRealNodeIds.length !== 1) {
return nextResolvedRealIdByClientRequest;
}
nextResolvedRealIdByClientRequest.set(
unresolvedClientRequestIds[0]!,
newlyAppearedIncomingRealNodeIds[0] as Id<"nodes">,
);
return nextResolvedRealIdByClientRequest;
}
export function reconcileCanvasFlowEdges(args: {
previousEdges: RFEdge[];
convexEdges: FlowConvexEdgeRecord[];
convexNodes?: FlowConvexNodeRecord[];
previousConvexNodeIdsSnapshot: ReadonlySet<string>;
pendingRemovedEdgeIds: ReadonlySet<string>;
pendingConnectionCreateIds: ReadonlySet<string>;
resolvedRealIdByClientRequest: ReadonlyMap<string, Id<"nodes">>;
localNodeIds: ReadonlySet<string>;
isAnyNodeDragging: boolean;
colorMode: "light" | "dark";
}): {
edges: RFEdge[];
nextConvexNodeIdsSnapshot: Set<string>;
inferredRealIdByClientRequest: Map<string, Id<"nodes">>;
settledPendingConnectionCreateIds: string[];
} {
const currentConvexIdList = args.convexNodes?.map((node) => node._id as string) ?? [];
const currentConvexIdSet = new Set(currentConvexIdList);
const newlyAppearedIds = currentConvexIdList.filter(
(id) => !args.previousConvexNodeIdsSnapshot.has(id),
);
const tempEdges = args.previousEdges.filter((edge) => edge.className === "temp");
const sourceTypeByNodeId = args.convexNodes
? new Map(args.convexNodes.map((node) => [node._id as string, node.type as string]))
: undefined;
const mapped = args.convexEdges
.filter((edge) => !args.pendingRemovedEdgeIds.has(edge._id as string))
.map((edge) =>
sourceTypeByNodeId
? convexEdgeToRFWithSourceGlow(
edge as Doc<"edges">,
sourceTypeByNodeId.get(edge.sourceNodeId),
args.colorMode,
)
: convexEdgeToRF(edge as Doc<"edges">),
);
const mappedSignatures = new Set(mapped.map(rfEdgeConnectionSignature));
const convexNodeIds = args.convexNodes
? new Set(args.convexNodes.map((node) => node._id as string))
: null;
const inferredRealIdByClientRequest = new Map(args.resolvedRealIdByClientRequest);
const resolveEndpoint = (nodeId: string): string => {
if (!isOptimisticNodeId(nodeId)) return nodeId;
const clientRequestId = clientRequestIdFromOptimisticNodeId(nodeId);
if (!clientRequestId) return nodeId;
if (args.isAnyNodeDragging && args.localNodeIds.has(nodeId)) {
return nodeId;
}
const realId = inferredRealIdByClientRequest.get(clientRequestId);
return realId !== undefined ? (realId as string) : nodeId;
};
const resolveEndpointWithInference = (nodeId: string, edge: RFEdge): string => {
const baseNodeId = resolveEndpoint(nodeId);
if (!isOptimisticNodeId(baseNodeId)) return baseNodeId;
if (args.isAnyNodeDragging) return baseNodeId;
const nodeClientRequestId = clientRequestIdFromOptimisticNodeId(baseNodeId);
if (nodeClientRequestId === null) return baseNodeId;
const edgeClientRequestId = clientRequestIdFromOptimisticEdgeId(edge.id);
if (edgeClientRequestId === null || edgeClientRequestId !== nodeClientRequestId) {
return baseNodeId;
}
if (!args.pendingConnectionCreateIds.has(nodeClientRequestId)) {
return baseNodeId;
}
if (newlyAppearedIds.length !== 1) {
return baseNodeId;
}
const inferredRealId = newlyAppearedIds[0] as Id<"nodes">;
inferredRealIdByClientRequest.set(nodeClientRequestId, inferredRealId);
return inferredRealId;
};
const endpointUsable = (nodeId: string): boolean => {
if (args.isAnyNodeDragging && args.localNodeIds.has(nodeId)) {
return true;
}
const resolvedNodeId = resolveEndpoint(nodeId);
return Boolean(convexNodeIds?.has(resolvedNodeId) || convexNodeIds?.has(nodeId));
};
const optimisticEndpointHasPendingCreate = (nodeId: string): boolean => {
if (!isOptimisticNodeId(nodeId)) return false;
const clientRequestId = clientRequestIdFromOptimisticNodeId(nodeId);
return clientRequestId !== null && args.pendingConnectionCreateIds.has(clientRequestId);
};
const shouldCarryOptimisticEdge = (original: RFEdge, remapped: RFEdge): boolean => {
if (mappedSignatures.has(rfEdgeConnectionSignature(remapped))) {
return false;
}
const sourceOk = endpointUsable(remapped.source);
const targetOk = endpointUsable(remapped.target);
if (sourceOk && targetOk) return true;
if (!args.pendingConnectionCreateIds.size) {
return false;
}
if (sourceOk && optimisticEndpointHasPendingCreate(original.target)) {
return true;
}
if (targetOk && optimisticEndpointHasPendingCreate(original.source)) {
return true;
}
return false;
};
const carriedOptimistic: RFEdge[] = [];
for (const edge of args.previousEdges) {
if (edge.className === "temp") continue;
if (!isOptimisticEdgeId(edge.id)) continue;
const remappedEdge: RFEdge = {
...edge,
source: resolveEndpointWithInference(edge.source, edge),
target: resolveEndpointWithInference(edge.target, edge),
};
if (!shouldCarryOptimisticEdge(edge, remappedEdge)) continue;
carriedOptimistic.push(remappedEdge);
}
const settledPendingConnectionCreateIds: string[] = [];
for (const clientRequestId of args.pendingConnectionCreateIds) {
const realId = inferredRealIdByClientRequest.get(clientRequestId);
if (realId === undefined) continue;
const nodePresent = args.convexNodes?.some((node) => node._id === realId) ?? false;
const edgeTouchesNewNode = args.convexEdges.some(
(edge) => edge.sourceNodeId === realId || edge.targetNodeId === realId,
);
if (nodePresent && edgeTouchesNewNode) {
settledPendingConnectionCreateIds.push(clientRequestId);
}
}
return {
edges: [...mapped, ...carriedOptimistic, ...tempEdges],
nextConvexNodeIdsSnapshot: args.convexNodes
? currentConvexIdSet
: new Set(args.previousConvexNodeIdsSnapshot),
inferredRealIdByClientRequest,
settledPendingConnectionCreateIds,
};
}
function applyLocalPositionPins(args: {
nodes: RFNode[];
pendingLocalPositionPins: ReadonlyMap<string, { x: number; y: number }>;
}): {
nodes: RFNode[];
nextPendingLocalPositionPins: Map<string, { x: number; y: number }>;
} {
const nextPendingLocalPositionPins = new Map(args.pendingLocalPositionPins);
const nodes = args.nodes.map((node) => {
const pin = nextPendingLocalPositionPins.get(node.id);
if (!pin) return node;
if (positionsMatchPin(node.position, pin)) {
nextPendingLocalPositionPins.delete(node.id);
return node;
}
return {
...node,
position: { x: pin.x, y: pin.y },
};
});
return {
nodes,
nextPendingLocalPositionPins,
};
}
export function reconcileCanvasFlowNodes(args: {
previousNodes: RFNode[];
incomingNodes: RFNode[];
convexNodes: FlowConvexNodeRecord[];
deletingNodeIds: ReadonlySet<string>;
resolvedRealIdByClientRequest: ReadonlyMap<string, Id<"nodes">>;
pendingConnectionCreateIds: ReadonlySet<string>;
preferLocalPositionNodeIds: ReadonlySet<string>;
pendingLocalPositionPins: ReadonlyMap<string, { x: number; y: number }>;
pendingMovePins: ReadonlyMap<string, { x: number; y: number }>;
}): {
nodes: RFNode[];
inferredRealIdByClientRequest: Map<string, Id<"nodes">>;
nextPendingLocalPositionPins: Map<string, { x: number; y: number }>;
clearedPreferLocalPositionNodeIds: string[];
} {
const inferredRealIdByClientRequest = inferPendingConnectionNodeHandoff({
previousNodes: args.previousNodes,
incomingConvexNodes: args.convexNodes,
pendingConnectionCreateIds: args.pendingConnectionCreateIds,
resolvedRealIdByClientRequest: args.resolvedRealIdByClientRequest,
});
const filteredIncomingNodes = args.deletingNodeIds.size
? args.incomingNodes.filter((node) => !args.deletingNodeIds.has(node.id))
: args.incomingNodes;
const mergedNodes = mergeNodesPreservingLocalState(
args.previousNodes,
filteredIncomingNodes,
inferredRealIdByClientRequest,
args.preferLocalPositionNodeIds,
);
const pinnedNodes = applyLocalPositionPins({
nodes: mergedNodes,
pendingLocalPositionPins: args.pendingLocalPositionPins,
});
const nodes = applyPinnedNodePositionsReadOnly(
pinnedNodes.nodes,
args.pendingMovePins,
);
const incomingById = new Map(filteredIncomingNodes.map((node) => [node.id, node]));
const clearedPreferLocalPositionNodeIds: string[] = [];
for (const node of nodes) {
if (!args.preferLocalPositionNodeIds.has(node.id)) continue;
const incomingNode = incomingById.get(node.id);
if (!incomingNode) continue;
if (positionsMatchPin(node.position, incomingNode.position)) {
clearedPreferLocalPositionNodeIds.push(node.id);
}
}
return {
nodes,
inferredRealIdByClientRequest,
nextPendingLocalPositionPins: pinnedNodes.nextPendingLocalPositionPins,
clearedPreferLocalPositionNodeIds,
};
}

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@@ -1,7 +1,7 @@
import type { DefaultEdgeOptions, Edge as RFEdge, Node as RFNode } from "@xyflow/react";
import { readCanvasOps } from "@/lib/canvas-local-persistence";
import type { Doc, Id } from "@/convex/_generated/dataModel";
import type { Id } from "@/convex/_generated/dataModel";
import type { CanvasNodeDeleteBlockReason } from "@/lib/toast";
import { getSourceImage } from "@/lib/image-pipeline/contracts";
@@ -385,38 +385,6 @@ export function applyPinnedNodePositionsReadOnly(
});
}
export function inferPendingConnectionNodeHandoff(
previousNodes: RFNode[],
incomingConvexNodes: Doc<"nodes">[],
pendingConnectionCreates: ReadonlySet<string>,
resolvedRealIdByClientRequest: Map<string, Id<"nodes">>,
): void {
const unresolvedClientRequestIds: string[] = [];
for (const clientRequestId of pendingConnectionCreates) {
if (resolvedRealIdByClientRequest.has(clientRequestId)) continue;
const optimisticNodeId = `${OPTIMISTIC_NODE_PREFIX}${clientRequestId}`;
const optimisticNodePresent = previousNodes.some(
(node) => node.id === optimisticNodeId,
);
if (optimisticNodePresent) {
unresolvedClientRequestIds.push(clientRequestId);
}
}
if (unresolvedClientRequestIds.length !== 1) return;
const previousIds = new Set(previousNodes.map((node) => node.id));
const newlyAppearedIncomingRealNodeIds = incomingConvexNodes
.map((node) => node._id as string)
.filter((id) => !isOptimisticNodeId(id))
.filter((id) => !previousIds.has(id));
if (newlyAppearedIncomingRealNodeIds.length !== 1) return;
const inferredClientRequestId = unresolvedClientRequestIds[0]!;
const inferredRealId = newlyAppearedIncomingRealNodeIds[0] as Id<"nodes">;
resolvedRealIdByClientRequest.set(inferredClientRequestId, inferredRealId);
}
function isMoveNodeOpPayload(
payload: unknown,
): payload is { nodeId: Id<"nodes">; positionX: number; positionY: number } {

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@@ -76,8 +76,6 @@ import { nodeTypes } from "./node-types";
import {
convexNodeDocWithMergedStorageUrl,
convexNodeToRF,
convexEdgeToRF,
convexEdgeToRFWithSourceGlow,
NODE_DEFAULTS,
NODE_HANDLE_MAP,
} from "@/lib/canvas-utils";
@@ -99,8 +97,6 @@ import {
import CustomConnectionLine from "@/components/canvas/custom-connection-line";
import type { CanvasNodeTemplate } from "@/lib/canvas-node-templates";
import {
applyPinnedNodePositions,
applyPinnedNodePositionsReadOnly,
CANVAS_MIN_ZOOM,
clientRequestIdFromOptimisticEdgeId,
clientRequestIdFromOptimisticNodeId,
@@ -115,19 +111,19 @@ import {
getPendingRemovedEdgeIdsFromLocalOps,
getPendingMovePinsFromLocalOps,
hasHandleKey,
inferPendingConnectionNodeHandoff,
isEditableKeyboardTarget,
isOptimisticEdgeId,
isOptimisticNodeId,
mergeNodesPreservingLocalState,
normalizeHandle,
OPTIMISTIC_EDGE_PREFIX,
OPTIMISTIC_NODE_PREFIX,
positionsMatchPin,
type PendingEdgeSplit,
rfEdgeConnectionSignature,
withResolvedCompareData,
} from "./canvas-helpers";
import {
reconcileCanvasFlowEdges,
reconcileCanvasFlowNodes,
} from "./canvas-flow-reconciliation-helpers";
import { adjustNodeDimensionChanges } from "./canvas-node-change-helpers";
import { useGenerationFailureWarnings } from "./canvas-generation-failures";
import { useCanvasDeleteHandlers } from "./canvas-delete-handlers";
@@ -1942,189 +1938,38 @@ function CanvasInner({ canvasId }: CanvasInnerProps) {
useLayoutEffect(() => {
if (!convexEdges) return;
setEdges((prev) => {
const prevConvexSnap = convexNodeIdsSnapshotForEdgeCarryRef.current;
const currentConvexIdList: string[] =
convexNodes !== undefined
? convexNodes.map((n: Doc<"nodes">) => n._id as string)
: [];
const currentConvexIdSet = new Set(currentConvexIdList);
const newlyAppearedIds: string[] = [];
for (const id of currentConvexIdList) {
if (!prevConvexSnap.has(id)) newlyAppearedIds.push(id);
}
const tempEdges = prev.filter((e) => e.className === "temp");
const pendingRemovedEdgeIds = getPendingRemovedEdgeIdsFromLocalOps(
canvasId as string,
);
const sourceTypeByNodeId =
convexNodes !== undefined
? new Map<string, string>(
convexNodes.map((n: Doc<"nodes">) => [n._id as string, n.type as string]),
)
: undefined;
const glowMode = resolvedTheme === "dark" ? "dark" : "light";
const mapped = convexEdges
.filter((edge: Doc<"edges">) => !pendingRemovedEdgeIds.has(edge._id as string))
.map((edge: Doc<"edges">) =>
sourceTypeByNodeId
? convexEdgeToRFWithSourceGlow(
edge,
sourceTypeByNodeId.get(edge.sourceNodeId),
glowMode,
)
: convexEdgeToRF(edge),
);
const mappedSignatures = new Set(mapped.map(rfEdgeConnectionSignature));
const convexNodeIds =
convexNodes !== undefined
? new Set(convexNodes.map((n: Doc<"nodes">) => n._id as string))
: null;
const realIdByClientRequest = resolvedRealIdByClientRequestRef.current;
const isAnyNodeDragging =
const reconciliation = reconcileCanvasFlowEdges({
previousEdges: prev,
convexEdges,
convexNodes,
previousConvexNodeIdsSnapshot: convexNodeIdsSnapshotForEdgeCarryRef.current,
pendingRemovedEdgeIds: getPendingRemovedEdgeIdsFromLocalOps(canvasId as string),
pendingConnectionCreateIds: pendingConnectionCreatesRef.current,
resolvedRealIdByClientRequest: resolvedRealIdByClientRequestRef.current,
localNodeIds: new Set(nodesRef.current.map((node) => node.id)),
isAnyNodeDragging:
isDragging.current ||
nodesRef.current.some((n) =>
Boolean((n as { dragging?: boolean }).dragging),
);
nodesRef.current.some((node) =>
Boolean((node as { dragging?: boolean }).dragging),
),
colorMode: resolvedTheme === "dark" ? "dark" : "light",
});
const localHasOptimisticNode = (nodeId: string): boolean => {
if (!isOptimisticNodeId(nodeId)) return false;
return nodesRef.current.some((n) => n.id === nodeId);
};
const resolveEndpoint = (nodeId: string): string => {
if (!isOptimisticNodeId(nodeId)) return nodeId;
const cr = clientRequestIdFromOptimisticNodeId(nodeId);
if (!cr) return nodeId;
if (isAnyNodeDragging && localHasOptimisticNode(nodeId)) {
return nodeId;
}
const real = realIdByClientRequest.get(cr);
return real !== undefined ? (real as string) : nodeId;
};
/** Wenn Mutation-.then noch nicht lief: echte ID aus Delta (eine neue Node) + gleiche clientRequestId wie Kante. */
const resolveEndpointWithInference = (
nodeId: string,
edge: RFEdge,
): string => {
const base = resolveEndpoint(nodeId);
if (!isOptimisticNodeId(base)) return base;
if (isAnyNodeDragging) return base;
const nodeCr = clientRequestIdFromOptimisticNodeId(base);
if (nodeCr === null) return base;
const edgeCr = clientRequestIdFromOptimisticEdgeId(edge.id);
if (edgeCr === null || edgeCr !== nodeCr) return base;
if (!pendingConnectionCreatesRef.current.has(nodeCr)) return base;
if (newlyAppearedIds.length !== 1) return base;
const inferred = newlyAppearedIds[0];
resolvedRealIdByClientRequestRef.current.set(
nodeCr,
inferred as Id<"nodes">,
);
return inferred;
};
const endpointUsable = (nodeId: string): boolean => {
if (isAnyNodeDragging && localHasOptimisticNode(nodeId)) return true;
const resolved = resolveEndpoint(nodeId);
if (convexNodeIds?.has(resolved)) return true;
if (convexNodeIds?.has(nodeId)) return true;
return false;
};
const optimisticEndpointHasPendingCreate = (nodeId: string): boolean => {
if (!isOptimisticNodeId(nodeId)) return false;
const cr = clientRequestIdFromOptimisticNodeId(nodeId);
return (
cr !== null && pendingConnectionCreatesRef.current.has(cr)
);
};
const shouldCarryOptimisticEdge = (
original: RFEdge,
remapped: RFEdge,
): boolean => {
if (mappedSignatures.has(rfEdgeConnectionSignature(remapped))) {
return false;
resolvedRealIdByClientRequestRef.current =
reconciliation.inferredRealIdByClientRequest;
convexNodeIdsSnapshotForEdgeCarryRef.current =
reconciliation.nextConvexNodeIdsSnapshot;
for (const clientRequestId of reconciliation.settledPendingConnectionCreateIds) {
pendingConnectionCreatesRef.current.delete(clientRequestId);
}
const sourceOk = endpointUsable(remapped.source);
const targetOk = endpointUsable(remapped.target);
if (sourceOk && targetOk) return true;
if (!pendingConnectionCreatesRef.current.size) {
return false;
}
if (
sourceOk &&
optimisticEndpointHasPendingCreate(original.target)
) {
return true;
}
if (
targetOk &&
optimisticEndpointHasPendingCreate(original.source)
) {
return true;
}
return false;
};
const carriedOptimistic: RFEdge[] = [];
for (const e of prev) {
if (e.className === "temp") continue;
if (!isOptimisticEdgeId(e.id)) continue;
const remapped: RFEdge = {
...e,
source: resolveEndpointWithInference(e.source, e),
target: resolveEndpointWithInference(e.target, e),
};
if (!shouldCarryOptimisticEdge(e, remapped)) continue;
carriedOptimistic.push(remapped);
}
if (convexNodes !== undefined) {
convexNodeIdsSnapshotForEdgeCarryRef.current = currentConvexIdSet;
}
/** Erst löschen, wenn Convex die neue Kante geliefert hat — sonst kurzes Fenster: pending=0, Kanten-Query noch alt, Carry schlägt fehl. */
for (const cr of [...pendingConnectionCreatesRef.current]) {
const realId = resolvedRealIdByClientRequestRef.current.get(cr);
if (realId === undefined) continue;
const nodePresent =
convexNodes !== undefined &&
convexNodes.some((n: Doc<"nodes">) => n._id === realId);
const edgeTouchesNewNode = convexEdges.some(
(e: Doc<"edges">) =>
e.sourceNodeId === realId || e.targetNodeId === realId,
);
if (nodePresent && edgeTouchesNewNode) {
pendingConnectionCreatesRef.current.delete(cr);
}
}
return [...mapped, ...carriedOptimistic, ...tempEdges];
return reconciliation.edges;
});
}, [canvasId, convexEdges, convexNodes, resolvedTheme, edgeSyncNonce]);
useLayoutEffect(() => {
if (!convexNodes || isResizing.current) return;
setNodes((previousNodes) => {
inferPendingConnectionNodeHandoff(
previousNodes,
convexNodes,
pendingConnectionCreatesRef.current,
resolvedRealIdByClientRequestRef.current,
);
/** RF setzt `node.dragging` + Position oft bevor `onNodeDragStart` `isDraggingRef` setzt — ohne diese Zeile zieht useLayoutEffect Convex-Stand darüber („Kleben“). */
const anyRfNodeDragging = previousNodes.some((n) =>
Boolean((n as { dragging?: boolean }).dragging),
@@ -2150,41 +1995,27 @@ function CanvasInner({ canvasId }: CanvasInnerProps) {
enriched.map(convexNodeToRF),
edges,
);
// Nodes, die gerade optimistisch gelöscht werden, nicht wiederherstellen
const filteredIncoming = deletingNodeIds.current.size > 0
? incomingNodes.filter((node) => !deletingNodeIds.current.has(node.id))
: incomingNodes;
const merged = applyPinnedNodePositions(
mergeNodesPreservingLocalState(
const reconciliation = reconcileCanvasFlowNodes({
previousNodes,
filteredIncoming,
resolvedRealIdByClientRequestRef.current,
preferLocalPositionNodeIdsRef.current,
),
pendingLocalPositionUntilConvexMatchesRef.current,
);
const mergedWithOpPins = applyPinnedNodePositionsReadOnly(
merged,
getPendingMovePinsFromLocalOps(canvasId as string),
);
/** Nicht am Drag-Ende leeren (moveNode läuft oft async): solange Convex alt ist, Eintrag behalten und erst bei übereinstimmendem Snapshot entfernen. */
const incomingById = new Map(
filteredIncoming.map((n) => [n.id, n]),
);
for (const n of mergedWithOpPins) {
if (!preferLocalPositionNodeIdsRef.current.has(n.id)) continue;
const inc = incomingById.get(n.id);
if (!inc) continue;
if (
positionsMatchPin(n.position, {
x: inc.position.x,
y: inc.position.y,
})
) {
preferLocalPositionNodeIdsRef.current.delete(n.id);
incomingNodes,
convexNodes,
deletingNodeIds: deletingNodeIds.current,
resolvedRealIdByClientRequest: resolvedRealIdByClientRequestRef.current,
pendingConnectionCreateIds: pendingConnectionCreatesRef.current,
preferLocalPositionNodeIds: preferLocalPositionNodeIdsRef.current,
pendingLocalPositionPins: pendingLocalPositionUntilConvexMatchesRef.current,
pendingMovePins: getPendingMovePinsFromLocalOps(canvasId as string),
});
resolvedRealIdByClientRequestRef.current =
reconciliation.inferredRealIdByClientRequest;
pendingLocalPositionUntilConvexMatchesRef.current =
reconciliation.nextPendingLocalPositionPins;
for (const nodeId of reconciliation.clearedPreferLocalPositionNodeIds) {
preferLocalPositionNodeIdsRef.current.delete(nodeId);
}
}
return mergedWithOpPins;
return reconciliation.nodes;
});
}, [canvasId, convexNodes, edges, storageUrlsById]);