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fix(editor): Hardened fixed point and bound element parsing in restore (#10816)

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* fix: Reinforce fixedPoint restore

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* fix: Even more hardened boundElement in restore

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* fix: Extract constant

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* fix: Remove superfluous check from restore

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* chore: Remove non-needed code path

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* fix: More robust number test for fixedPoint parsing

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* fix: Validate bindings for element being parsed

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>

* unrelated type safety

---------

Signed-off-by: Mark Tolmacs <mark@lazycat.hu>
Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>
This commit is contained in:
Márk Tolmács
2026-02-23 20:22:27 +01:00
committed by GitHub
parent b0404b10b6
commit 7ea3229e17
2 changed files with 51 additions and 19 deletions
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packages/element/src/binding.ts
+24 -8
View File
@@ -2447,21 +2447,37 @@ export const getArrowLocalFixedPoints = (
];
};
export const normalizeFixedPoint = <T extends FixedPoint | null>(
export const isFixedPoint = (
fixedPoint: any,
): fixedPoint is FixedPointBinding["fixedPoint"] => {
return (
Array.isArray(fixedPoint) &&
fixedPoint.length === 2 &&
fixedPoint.every((coord) => Number.isFinite(coord))
);
};
export const normalizeFixedPoint = <T extends FixedPoint>(
fixedPoint: T,
): T extends null ? null : FixedPoint => {
): FixedPoint => {
if (!isFixedPoint(fixedPoint)) {
return [0.5001, 0.5001];
}
const EPSILON = 0.0001;
// Do not allow a precise 0.5 for fixed point ratio
// to avoid jumping arrow heading due to floating point imprecision
if (
fixedPoint &&
(Math.abs(fixedPoint[0] - 0.5) < 0.0001 ||
Math.abs(fixedPoint[1] - 0.5) < 0.0001)
Math.abs(fixedPoint[0] - 0.5) < EPSILON ||
Math.abs(fixedPoint[1] - 0.5) < EPSILON
) {
return fixedPoint.map((ratio) =>
Math.abs(ratio - 0.5) < 0.0001 ? 0.5001 : ratio,
) as T extends null ? null : FixedPoint;
Math.abs(ratio - 0.5) < EPSILON ? 0.5001 : ratio,
) as FixedPoint;
}
return fixedPoint as any as T extends null ? null : FixedPoint;
return fixedPoint;
};
type Side =