snapshot of https://github.com/excalidraw/excalidraw.git (master, 2026-09-16; blobs > 131072B omitted)

packages/excalidraw/actions/actionFlip.test.tsx

@@ -0,0 +1,211 @@
+import { pointFrom } from "@excalidraw/math";
+
+import { Excalidraw } from "../index";
+import { API } from "../tests/helpers/api";
+import { render } from "../tests/test-utils";
+
+import { actionFlipHorizontal, actionFlipVertical } from "./actionFlip";
+
+const { h } = window;
+
+describe("flipping re-centers selection", () => {
+  it("elbow arrow touches group selection side yet it remains in place after multiple moves", async () => {
+    const elements = [
+      API.createElement({
+        type: "rectangle",
+        id: "rec1",
+        x: 100,
+        y: 100,
+        width: 100,
+        height: 100,
+        boundElements: [{ id: "arr", type: "arrow" }],
+      }),
+      API.createElement({
+        type: "rectangle",
+        id: "rec2",
+        x: 220,
+        y: 250,
+        width: 100,
+        height: 100,
+        boundElements: [{ id: "arr", type: "arrow" }],
+      }),
+      API.createElement({
+        type: "arrow",
+        id: "arr",
+        x: 149.9,
+        y: 95,
+        width: 156,
+        height: 239.9,
+        startBinding: {
+          elementId: "rec1",
+          fixedPoint: [0.49, -0.05],
+          mode: "orbit",
+        },
+        endBinding: {
+          elementId: "rec2",
+          fixedPoint: [-0.05, 0.49],
+          mode: "orbit",
+        },
+        startArrowhead: null,
+        endArrowhead: "arrow",
+        fixedSegments: null,
+        points: [
+          pointFrom(0, 0),
+          pointFrom(0, -35),
+          pointFrom(-90, -35),
+          pointFrom(-90, 204),
+          pointFrom(66, 204),
+        ],
+        elbowed: true,
+      }),
+    ];
+    await render(<Excalidraw initialData={{ elements }} />);
+
+    API.setSelectedElements(elements);
+
+    expect(Object.keys(h.state.selectedElementIds).length).toBe(3);
+
+    API.executeAction(actionFlipHorizontal);
+    API.executeAction(actionFlipHorizontal);
+    API.executeAction(actionFlipHorizontal);
+    API.executeAction(actionFlipHorizontal);
+
+    const rec1 = h.elements.find((el) => el.id === "rec1")!;
+    expect(rec1.x).toBeCloseTo(100, 0);
+    expect(rec1.y).toBeCloseTo(101, 0);
+
+    const rec2 = h.elements.find((el) => el.id === "rec2")!;
+    expect(rec2.x).toBeCloseTo(220, 0);
+    expect(rec2.y).toBeCloseTo(251, 0);
+  });
+});
+
+describe("flipping arrowheads", () => {
+  beforeEach(async () => {
+    await render(<Excalidraw />);
+  });
+
+  it("flipping bound arrow should flip arrowheads only", () => {
+    const rect = API.createElement({
+      type: "rectangle",
+      boundElements: [{ type: "arrow", id: "arrow1" }],
+    });
+    const arrow = API.createElement({
+      type: "arrow",
+      id: "arrow1",
+      startArrowhead: "arrow",
+      endArrowhead: null,
+      endBinding: {
+        elementId: rect.id,
+        fixedPoint: [0.5, 0.5],
+        mode: "orbit",
+      },
+    });
+
+    API.setElements([rect, arrow]);
+    API.setSelectedElements([arrow]);
+
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe(null);
+
+    API.executeAction(actionFlipHorizontal);
+    expect(API.getElement(arrow).startArrowhead).toBe(null);
+    expect(API.getElement(arrow).endArrowhead).toBe("arrow");
+
+    API.executeAction(actionFlipHorizontal);
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe(null);
+
+    API.executeAction(actionFlipVertical);
+    expect(API.getElement(arrow).startArrowhead).toBe(null);
+    expect(API.getElement(arrow).endArrowhead).toBe("arrow");
+  });
+
+  it("flipping bound arrow should flip arrowheads only 2", () => {
+    const rect = API.createElement({
+      type: "rectangle",
+      boundElements: [{ type: "arrow", id: "arrow1" }],
+    });
+    const rect2 = API.createElement({
+      type: "rectangle",
+      boundElements: [{ type: "arrow", id: "arrow1" }],
+    });
+    const arrow = API.createElement({
+      type: "arrow",
+      id: "arrow1",
+      startArrowhead: "arrow",
+      endArrowhead: "circle",
+      startBinding: {
+        elementId: rect.id,
+        fixedPoint: [0.5, 0.5],
+        mode: "orbit",
+      },
+      endBinding: {
+        elementId: rect2.id,
+        fixedPoint: [0.5, 0.5],
+        mode: "orbit",
+      },
+    });
+
+    API.setElements([rect, rect2, arrow]);
+    API.setSelectedElements([arrow]);
+
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe("circle");
+
+    API.executeAction(actionFlipHorizontal);
+    expect(API.getElement(arrow).startArrowhead).toBe("circle");
+    expect(API.getElement(arrow).endArrowhead).toBe("arrow");
+
+    API.executeAction(actionFlipVertical);
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe("circle");
+  });
+
+  it("flipping unbound arrow shouldn't flip arrowheads", () => {
+    const arrow = API.createElement({
+      type: "arrow",
+      id: "arrow1",
+      startArrowhead: "arrow",
+      endArrowhead: "circle",
+    });
+
+    API.setElements([arrow]);
+    API.setSelectedElements([arrow]);
+
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe("circle");
+
+    API.executeAction(actionFlipHorizontal);
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe("circle");
+  });
+
+  it("flipping bound arrow shouldn't flip arrowheads if selected alongside non-arrow eleemnt", () => {
+    const rect = API.createElement({
+      type: "rectangle",
+      boundElements: [{ type: "arrow", id: "arrow1" }],
+    });
+    const arrow = API.createElement({
+      type: "arrow",
+      id: "arrow1",
+      startArrowhead: "arrow",
+      endArrowhead: null,
+      endBinding: {
+        elementId: rect.id,
+        fixedPoint: [0.5, 0.5],
+        mode: "orbit",
+      },
+    });
+
+    API.setElements([rect, arrow]);
+    API.setSelectedElements([rect, arrow]);
+
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe(null);
+
+    API.executeAction(actionFlipHorizontal);
+    expect(API.getElement(arrow).startArrowhead).toBe("arrow");
+    expect(API.getElement(arrow).endArrowhead).toBe(null);
+  });
+});