fix(kiwi): preserve imported boolean geometry

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+### Fixes
+
+- Improve Figma boolean imports by preserving XOR operations as editable exclude nodes and falling back to imported fill geometry when boolean path reconstruction cannot produce a path.
+- Preserve rotated Figma transform origins for imported vector nodes.
+
 ## 0.13.2 — 2026-05-30
 
 ### Changed

packages/core/src/canvas/boolean.ts

@@ -246,6 +246,15 @@ function operationForNode(r: SkiaRenderer, node: SceneNode): PathOp {
   return r.ck.PathOp[BOOLEAN_PATH_OP[operation]]
 }
 
+function makeImportedFillGeometryPath(r: SkiaRenderer, node: SceneNode): Path | null {
+  if (typeof r.getFillGeometry !== 'function') return null
+  const fillGeometry = r.getFillGeometry(node)
+  if (!fillGeometry) return null
+  const result = new r.ck.Path()
+  for (const path of fillGeometry) result.addPath(path)
+  return result
+}
+
 export function makeBooleanOperationPath(
   r: SkiaRenderer,
   node: SceneNode,
@@ -259,14 +268,21 @@ export function makeBooleanOperationPath(
     if (path) childPaths.push(path)
   }
 
-  if (childPaths.length === 0) return null
+  if (childPaths.length === 0) return makeImportedFillGeometryPath(r, node)
 
-  const first = childPaths[0]
-  for (const path of childPaths.slice(1)) {
-    first.op(path, operationForNode(r, node))
+  const result = childPaths[0]
+  const operation = operationForNode(r, node)
+  for (let index = 1; index < childPaths.length; index++) {
+    const path = childPaths[index]
+    const didApply = result.op(path, operation)
     path.delete()
+    if (!didApply) {
+      result.delete()
+      for (const remaining of childPaths.slice(index + 1)) remaining.delete()
+      return makeImportedFillGeometryPath(r, node)
     }
-  return first
+  }
+  return result
 }
 
 export function renderBooleanOperation(

packages/core/src/kiwi/fig/codec/index.ts

@@ -329,7 +329,7 @@ export interface NodeChange {
   frameMaskDisabled?: boolean
   resizeToFit?: boolean
   // Vector
-  booleanOperation?: 'UNION' | 'SUBTRACT' | 'INTERSECT' | 'EXCLUDE'
+  booleanOperation?: 'UNION' | 'SUBTRACT' | 'INTERSECT' | 'EXCLUDE' | 'XOR'
   vectorData?: unknown
   fillGeometry?: Array<{ windingRule?: string; commandsBlob?: number }>
   strokeGeometry?: Array<{ windingRule?: string; commandsBlob?: number }>

packages/core/src/kiwi/fig/node-change/convert.ts

@@ -112,8 +112,10 @@ function mapBooleanOperation(nc: NodeChange): SceneNode['booleanOperation'] {
   switch (nc.booleanOperation) {
     case 'SUBTRACT':
     case 'INTERSECT':
-    case 'EXCLUDE':
       return nc.booleanOperation
+    case 'EXCLUDE':
+    case 'XOR':
+      return 'EXCLUDE'
     default:
       return 'UNION'
   }
@@ -229,6 +231,13 @@ function convertTransformProps(
     const sx = flipX ? -1 : 1
     rotation = Math.atan2(t.m10 * sx, t.m00 * sx) * (180 / Math.PI)
 
+    if (rotation !== 0 && !flipX) {
+      const radians = (rotation * Math.PI) / 180
+      const cos = Math.cos(radians)
+      const sin = Math.sin(radians)
+      x = t.m02 - (width / 2) * (1 - cos) - sin * (height / 2)
+      y = t.m12 - (height / 2) * (1 - cos) + sin * (width / 2)
+    } else {
       const corners = [
         { x: 0, y: 0 },
         { x: width, y: 0 },
@@ -241,6 +250,7 @@ function convertTransformProps(
       x = Math.min(...corners.map((point) => point.x))
       y = Math.min(...corners.map((point) => point.y))
     }
+  }
 
   return { x, y, width, height, rotation, flipX, flipY: false }
 }

tests/engine/io/fig/import/boolean-operation.test.ts

@@ -69,6 +69,20 @@ describe('Figma boolean operation import', () => {
     expect(children.map((child) => child.type)).toEqual(['RECTANGLE', 'ELLIPSE'])
   })
 
+  test('maps Kiwi XOR boolean operations to scene graph exclude', () => {
+    const props = nodeChangeToProps(
+      {
+        type: 'BOOLEAN_OPERATION',
+        name: 'Imported boolean',
+        booleanOperation: 'XOR'
+      } as NodeChange,
+      []
+    )
+
+    expect(props.nodeType).toBe('BOOLEAN_OPERATION')
+    expect(props.booleanOperation).toBe('EXCLUDE')
+  })
+
   test('defaults missing boolean operations to union', () => {
     const props = nodeChangeToProps(
       {

tests/engine/io/fig/import/legacy/transforms.test.ts

@@ -20,4 +20,20 @@ describe('fig-import: transforms', () => {
     expect(imported.y).toBe(7)
     expect(imported.flipX).toBe(true)
   })
+
+  test('rotated transforms preserve the Figma matrix origin', () => {
+    const graph = importNodeChanges([
+      doc(),
+      canvas(),
+      node('VECTOR', 10, 1, {
+        size: { x: 100, y: 20 },
+        transform: { m00: 0, m01: -1, m02: 10, m10: 1, m11: 0, m12: 20 }
+      })
+    ])
+    const imported = graph.getChildren(graph.getPages()[0].id)[0]
+
+    expect(imported.x).toBeCloseTo(-50)
+    expect(imported.y).toBeCloseTo(60)
+    expect(imported.rotation).toBeCloseTo(90)
+  })
 })

tests/engine/render/canvas/boolean.test.ts

@@ -5,6 +5,7 @@ import { makeBooleanOperationPath } from '#core/canvas/boolean'
 import type { SkiaRenderer } from '#core/canvas/renderer'
 import { makeNodeShapePath, makePolygonPath, makeRRect } from '#core/canvas/shapes'
 import { BLACK } from '#core/constants'
+import type { SceneNode } from '#core/scene-graph'
 
 import { createAPI } from '#tests/engine/figma/api/helpers'
 
@@ -164,6 +165,26 @@ describe('boolean operation paths', () => {
     path?.delete()
   })
 
+  test('uses imported fill geometry when child paths cannot produce a boolean path', async () => {
+    const r = await createRenderer()
+    const importedPath = new r.ck.Path()
+    importedPath.addRect(r.ck.LTRBRect(5, 6, 25, 36))
+    r.getFillGeometry = () => [importedPath]
+    const node = {
+      id: 'boolean',
+      type: 'BOOLEAN_OPERATION',
+      childIds: [],
+      booleanOperation: 'UNION'
+    } as SceneNode
+    const api = createAPI()
+
+    const path = makeBooleanOperationPath(r, node, api.graph)
+
+    expect(path?.getBounds()).toEqual(new Float32Array([5, 6, 25, 36]))
+    path?.delete()
+    importedPath.delete()
+  })
+
   test('supports nested boolean operation children', async () => {
     const r = await createRenderer()
     const api = createAPI()