DataGrid - TextArea editor should have the aria-invalid attribute when invalid (T1296376)

packages/devextreme/js/__internal/grids/grid_core/__tests__/__mock__/model/cell/data_cell.ts

@@ -1,9 +1,7 @@
-import { TextBoxModel } from '@ts/ui/__tests__/__mock__/model/textbox';
-
 const SELECTORS = {
   editCell: 'dx-editor-cell',
   invalidCell: 'invalid',
-  textBox: 'dx-textbox',
+  widget: 'dx-widget',
 };
 
 export class DataCellModel {
@@ -31,8 +29,8 @@ export class DataCellModel {
     return this.root?.innerHTML ?? '';
   }
 
-  public getEditor(): TextBoxModel {
-    const editorElement = this.root?.querySelector(`.${SELECTORS.textBox}`) as HTMLElement;
-    return new TextBoxModel(editorElement);
+  public getEditor<T>(EditorModel: new (element: HTMLElement) => T): T {
+    const editorElement = this.root?.querySelector(`.${SELECTORS.widget}`) as HTMLElement;
+    return new EditorModel(editorElement);
   }
 }

packages/devextreme/js/__internal/grids/grid_core/editing/const.ts

@@ -14,8 +14,9 @@ export const EDITING_EDITCOLUMNNAME_OPTION_NAME = 'editing.editColumnName';
 
 export const TARGET_COMPONENT_NAME = 'targetComponent';
 
+export const EDITORS_TEXTAREA_SELECTOR = 'textarea:not([hidden])';
 export const EDITORS_INPUT_SELECTOR = 'input:not([type=\'hidden\'])';
-export const FOCUSABLE_ELEMENT_SELECTOR = `[tabindex]:not([disabled]), ${EDITORS_INPUT_SELECTOR}:not([disabled])`;
+export const FOCUSABLE_ELEMENT_SELECTOR = `[tabindex]:not([disabled]), ${EDITORS_INPUT_SELECTOR}:not([disabled]), ${EDITORS_TEXTAREA_SELECTOR}:not([disabled])`;
 
 export const EDIT_MODE_BATCH = 'batch';
 export const EDIT_MODE_ROW = 'row';

packages/devextreme/js/__internal/grids/grid_core/validating/__tests__/validating.integration.test.ts

@@ -6,6 +6,8 @@ import {
   beforeTest,
   createDataGrid,
 } from '@ts/grids/grid_core/__tests__/__mock__/helpers/utils';
+import { TextAreaModel } from '@ts/ui/__tests__/__mock__/model/text_area';
+import { TextBoxModel } from '@ts/ui/__tests__/__mock__/model/textbox';
 
 describe('DataGrid Cell Editing', () => {
   beforeEach(beforeTest);
@@ -42,7 +44,7 @@ describe('DataGrid Cell Editing', () => {
       });
 
       const firstCell = component.getDataCell(0, 0);
-      const firstEditor = firstCell.getEditor();
+      const firstEditor = firstCell.getEditor(TextBoxModel);
 
       firstEditor.setValue('');
       jest.runAllTimers();
@@ -56,7 +58,7 @@ describe('DataGrid Cell Editing', () => {
       expect(component.getDataCell(0, 0).isValidCell).toBe(true);
 
       const secondCell = component.getDataCell(1, 0);
-      const secondEditor = secondCell.getEditor();
+      const secondEditor = secondCell.getEditor(TextBoxModel);
 
       secondEditor.setValue('');
       jest.runAllTimers();
@@ -70,4 +72,40 @@ describe('DataGrid Cell Editing', () => {
       expect(component.getDataCell(1, 0).isValidCell).toBe(true);
     });
   });
+
+  // T1296376
+  describe('when a TextArea editor is invalid', () => {
+    it('should have the aria-invalid attribute set to true', async () => {
+      const { component, instance } = await createDataGrid({
+        dataSource: [
+          { id: 1, text: 'value' },
+        ],
+        keyExpr: 'id',
+        columns: [{
+          dataField: 'text',
+          validationRules: [{ type: 'required' }],
+        }],
+        editing: {
+          mode: 'cell',
+          allowUpdating: true,
+        },
+        onEditorPreparing(e) {
+          e.editorName = 'dxTextArea';
+        },
+      });
+
+      instance.editCell(0, 0);
+      jest.runAllTimers();
+      const textCell = component.getDataCell(0, 0);
+
+      expect(textCell.isEditCell).toBe(true);
+
+      const editor = textCell.getEditor(TextAreaModel);
+      editor.setValue('');
+      jest.runAllTimers();
+
+      expect(component.getDataCell(0, 0).isValidCell).toBe(false);
+      expect(editor.getInputElement().getAttribute('aria-invalid')).toBe('true');
+    });
+  });
 });

packages/devextreme/js/__internal/grids/grid_core/validating/m_validating.ts

@@ -31,7 +31,7 @@ import type { DataController } from '@ts/grids/grid_core/data_controller/m_data_
 import type { EditorFactory } from '@ts/grids/grid_core/editor_factory/m_editor_factory';
 import type { RowsView } from '@ts/grids/grid_core/views/m_rows_view';
 
-import { EDITORS_INPUT_SELECTOR } from '../editing/const';
+import { EDITORS_INPUT_SELECTOR, EDITORS_TEXTAREA_SELECTOR } from '../editing/const';
 import type { EditingController } from '../editing/m_editing';
 import type { NormalizedEditCellOptions } from '../editing/types';
 import modules from '../m_modules';
@@ -1442,7 +1442,8 @@ export const validatingEditorFactoryExtender = (Base: ModuleType<EditorFactory>)
 
   private _getCurrentFocusElement($focus) {
     if (this._editingController.isEditing()) {
-      return $focus.find(EDITORS_INPUT_SELECTOR).first();
+      const selector = [EDITORS_INPUT_SELECTOR, EDITORS_TEXTAREA_SELECTOR].join(', ');
+      return $focus.find(selector).first();
     }
     return $focus;
   }

packages/devextreme/js/__internal/ui/__tests__/__mock__/model/text_area.ts

@@ -16,10 +16,7 @@ export class TextAreaModel {
   }
 
   public setValue(value: string): void {
-    const input = this.getInputElement();
-
-    input.value = value;
-    input.dispatchEvent(new Event('input', { bubbles: true }));
+    this.getInstance()?.option('value', value);
   }
 
   public getInstance(): TextArea {