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fix: restore from invalid fixedSegments & type-safer point updates (#9899)

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* fix: restore from invalid fixedSegments & type-safer point updates

* fix: Type updates and throw for invalid point states

---------

Co-authored-by: Mark Tolmacs <mark@lazycat.hu>
This commit is contained in:
David Luzar
2025-08-22 17:45:58 +02:00
committed by GitHub
parent 90ec2739ae
commit 531f3e5524
2 changed files with 34 additions and 18 deletions
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47
packages/element/src/elbowArrow.ts
View File

@@ -359,6 +359,12 @@ const handleSegmentRelease = (
null,
);
if (!restoredPoints || restoredPoints.length < 2) {
throw new Error(
"Property 'points' is required in the update returned by normalizeArrowElementUpdate()",
);
}
const nextPoints: GlobalPoint[] = [];
// First part of the arrow are the old points
@@ -706,7 +712,7 @@ const handleEndpointDrag = (
endGlobalPoint: GlobalPoint,
hoveredStartElement: ExcalidrawBindableElement | null,
hoveredEndElement: ExcalidrawBindableElement | null,
) => {
): ElementUpdate<ExcalidrawElbowArrowElement> => {
let startIsSpecial = arrow.startIsSpecial ?? null;
let endIsSpecial = arrow.endIsSpecial ?? null;
const globalUpdatedPoints = updatedPoints.map((p, i) =>
@@ -741,8 +747,15 @@ const handleEndpointDrag = (
// Calculate the moving second point connection and add the start point
{
const secondPoint = globalUpdatedPoints[startIsSpecial ? 2 : 1];
const thirdPoint = globalUpdatedPoints[startIsSpecial ? 3 : 2];
const secondPoint = globalUpdatedPoints.at(startIsSpecial ? 2 : 1);
const thirdPoint = globalUpdatedPoints.at(startIsSpecial ? 3 : 2);
if (!secondPoint || !thirdPoint) {
throw new Error(
`Second and third points must exist when handling endpoint drag (${startIsSpecial})`,
);
}
const startIsHorizontal = headingIsHorizontal(startHeading);
const secondIsHorizontal = headingIsHorizontal(
vectorToHeading(vectorFromPoint(secondPoint, thirdPoint)),
@@ -801,10 +814,19 @@ const handleEndpointDrag = (
// Calculate the moving second to last point connection
{
const secondToLastPoint =
globalUpdatedPoints[globalUpdatedPoints.length - (endIsSpecial ? 3 : 2)];
const thirdToLastPoint =
globalUpdatedPoints[globalUpdatedPoints.length - (endIsSpecial ? 4 : 3)];
const secondToLastPoint = globalUpdatedPoints.at(
globalUpdatedPoints.length - (endIsSpecial ? 3 : 2),
);
const thirdToLastPoint = globalUpdatedPoints.at(
globalUpdatedPoints.length - (endIsSpecial ? 4 : 3),
);
if (!secondToLastPoint || !thirdToLastPoint) {
throw new Error(
`Second and third to last points must exist when handling endpoint drag (${endIsSpecial})`,
);
}
const endIsHorizontal = headingIsHorizontal(endHeading);
const secondIsHorizontal = headingForPointIsHorizontal(
thirdToLastPoint,
@@ -2071,16 +2093,7 @@ const normalizeArrowElementUpdate = (
nextFixedSegments: readonly FixedSegment[] | null,
startIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"],
endIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"],
): {
points: LocalPoint[];
x: number;
y: number;
width: number;
height: number;
fixedSegments: readonly FixedSegment[] | null;
startIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"];
endIsSpecial?: ExcalidrawElbowArrowElement["startIsSpecial"];
} => {
): ElementUpdate<ExcalidrawElbowArrowElement> => {
const offsetX = global[0][0];
const offsetY = global[0][1];
let points = global.map((p) =>

5
packages/excalidraw/data/restore.ts
View File

@@ -387,7 +387,10 @@ export const restoreElement = (
elbowed: true,
startBinding: repairBinding(element, element.startBinding),
endBinding: repairBinding(element, element.endBinding),
fixedSegments: element.fixedSegments,
fixedSegments:
element.fixedSegments?.length && base.points.length >= 4
? element.fixedSegments
: null,
startIsSpecial: element.startIsSpecial,
endIsSpecial: element.endIsSpecial,
})