From 5828eec9b00231a8402a99eca708614c27abc128 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=99=BD=E7=86=B1?= <sonne@asaki.me>
Date: Wed, 22 Jul 2026 20:51:36 +0800
Subject: [PATCH] fix(sheets-ui): end selection when pointer is released
 (#7301)

---
 .../base-selection-render.service.spec.ts     | 28 +++++++++++++++++++
 .../base-selection-render.service.ts          |  5 ++++
 2 files changed, 33 insertions(+)

diff --git a/packages/sheets-ui/src/services/selection/__tests__/base-selection-render.service.spec.ts b/packages/sheets-ui/src/services/selection/__tests__/base-selection-render.service.spec.ts
index dfd36f908c..47dcbb9ba0 100644
--- a/packages/sheets-ui/src/services/selection/__tests__/base-selection-render.service.spec.ts
+++ b/packages/sheets-ui/src/services/selection/__tests__/base-selection-render.service.spec.ts
@@ -441,6 +441,34 @@ describe('BaseSelectionRenderService', () => {
         expect(movingSelections.length).toBeGreaterThan(0);
     });
 
+    it('ends a leaked drag before handling pointer movement with no pressed buttons', () => {
+        const { service } = createSelectionRenderService();
+        const { scene } = service.changeRuntimeForTest();
+        service.resetSelectionsByModelData([selections[0]]);
+        service.listenPointerMoveForTest();
+
+        (scene.onPointerMove$ as unknown as { emit: (evt: unknown) => void }).emit({
+            offsetX: 350,
+            offsetY: 65,
+            buttons: 1,
+        });
+        expect(service.selectionMoving).toBe(true);
+
+        (scene.onPointerMove$ as unknown as { emit: (evt: unknown) => void }).emit({
+            offsetX: 450,
+            offsetY: 85,
+            buttons: 0,
+        });
+
+        expect(service.getActiveRange()).toEqual({
+            startRow: 1,
+            startColumn: 1,
+            endRow: 3,
+            endColumn: 3,
+        });
+        expect(service.selectionMoving).toBe(false);
+    });
+
     it('cancels an in-progress selection when another scene receives a pointer event', () => {
         const { service } = createSelectionRenderService();
         const { scene } = service.changeRuntimeForTest();
diff --git a/packages/sheets-ui/src/services/selection/base-selection-render.service.ts b/packages/sheets-ui/src/services/selection/base-selection-render.service.ts
index dd1d42e2bb..4e336e795b 100644
--- a/packages/sheets-ui/src/services/selection/base-selection-render.service.ts
+++ b/packages/sheets-ui/src/services/selection/base-selection-render.service.ts
@@ -520,6 +520,11 @@ export class BaseSelectionRenderService extends Disposable implements ISheetSele
         // #region onPointerMove$
         // eslint-disable-next-line max-lines-per-function, complexity
         this._scenePointerMoveSub = scene.onPointerMove$.subscribeEvent((moveEvt: IPointerEvent | IMouseEvent) => {
+            if (moveEvt.buttons === 0) {
+                this.endSelection();
+                return;
+            }
+
             const { offsetX: moveOffsetX, offsetY: moveOffsetY } = moveEvt;
 
             const { x: newMoveOffsetX, y: newMoveOffsetY } = scene.getCoordRelativeToViewport(Vector2.FromArray([moveOffsetX, moveOffsetY]));