fix: 修复透视表数据为空时，行列交叉单元格缺失的问题 (#2452)

packages/s2-core/__tests__/spreadsheet/empty-dataset-spec.ts

@@ -0,0 +1,64 @@
+/* eslint-disable @typescript-eslint/ban-ts-comment */
+import { getContainer } from 'tests/util/helpers';
+import { PivotSheet, TableSheet } from '@/sheet-type';
+import type { S2Options } from '@/common/interface/s2Options';
+
+const s2Options: S2Options = {
+  width: 400,
+  height: 400,
+  hierarchyType: 'grid',
+};
+
+describe('Empty Dataset Structure Tests', () => {
+  test('should generate placeholder for pivot mode with single dimension', () => {
+    const container = getContainer();
+
+    const s2DataCfg = {
+      fields: {
+        rows: ['province', 'city'],
+        columns: ['type'],
+        values: ['price'],
+        valueInCols: true,
+      },
+      data: [],
+    };
+    const s2 = new PivotSheet(container, s2DataCfg, s2Options);
+    s2.render();
+
+    // @ts-ignore
+    expect(s2.facet.panelScrollGroupIndexes).toEqual([0, 0, 0, 0]);
+  });
+
+  test('should generate placeholder for pivot mode with two dimensions', () => {
+    const container = getContainer();
+
+    const s2DataCfg = {
+      fields: {
+        rows: ['province', 'city'],
+        columns: ['type'],
+        values: ['price', 'cost'],
+        valueInCols: true,
+      },
+      data: [],
+    };
+    const s2 = new PivotSheet(container, s2DataCfg, s2Options);
+    s2.render();
+    // @ts-ignore
+    expect(s2.facet.panelScrollGroupIndexes).toEqual([0, 1, 0, 0]);
+  });
+
+  test(`shouldn't generate placeholder for table mode`, () => {
+    const container = getContainer();
+
+    const s2DataCfg = {
+      fields: {
+        columns: ['province', 'city', 'type', 'price', 'cost'],
+      },
+      data: [],
+    };
+    const s2 = new TableSheet(container, s2DataCfg, s2Options);
+    s2.render();
+    // @ts-ignore
+    expect(s2.facet.panelScrollGroupIndexes).toEqual([]);
+  });
+});

packages/s2-core/src/data-set/base-data-set.ts

@@ -26,6 +26,7 @@ import {
 } from '../utils/condition/state-controller';
 import type { CellMeta, RowData } from '../common';
 import { generateExtraFieldMeta } from '../utils/dataset/pivot-data-set';
+import type { Indexes } from '../utils/indexes';
 import type { CellDataParams, DataType } from './index';
 
 export abstract class BaseDataSet {
@@ -122,6 +123,11 @@ export abstract class BaseDataSet {
     return isEmpty(this.getDisplayDataSet());
   }
 
+  // https://github.com/antvis/S2/issues/2255
+  public getEmptyViewIndexes(): Indexes {
+    return [];
+  }
+
   public getValueRangeByField(field: string): ValueRange {
     const cacheRange = getValueRangeState(this.spreadsheet, field);
     if (cacheRange) {

packages/s2-core/src/facet/frozen-facet.ts

@@ -199,17 +199,17 @@ export abstract class FrozenFacet extends BaseFacet {
       }
     }
 
-    // https://github.com/antvis/S2/issues/2255
-    const indexes = this.spreadsheet.dataSet?.isEmpty?.()
-      ? ([] as unknown as Indexes)
-      : calculateInViewIndexes(
-          scrollX,
-          scrollY,
-          this.viewCellWidths,
-          this.viewCellHeights,
-          finalViewport,
-          this.getRealScrollX(this.cornerBBox.width),
-        );
+    const indexes =
+      this.spreadsheet.isTableMode() && this.spreadsheet.dataSet?.isEmpty?.()
+        ? this.spreadsheet.dataSet.getEmptyViewIndexes()
+        : calculateInViewIndexes(
+            scrollX,
+            scrollY,
+            this.viewCellWidths,
+            this.viewCellHeights,
+            finalViewport,
+            this.getRealScrollX(this.cornerBBox.width),
+          );
 
     this.panelScrollGroupIndexes = indexes;