Feature: Add LayoutHeaderField to support headers in Layout Grids

CHANGELOG_v6.md

@@ -24,7 +24,7 @@ should change the heading of the (upcoming) version to include a major version b
 - Implemented the `GridTemplate` component, adding it to the `templates` for the theme
 - BREAKING CHANGE: Removed support for version 4 of `antd`
 - Updated `ArrayFieldItemTemplate` to replace `Button.Group` with `Space.Compact` since `Button.Group` is deprecated in `antd` version 5
-- Upgraded to `@ant-design/icon@5`, fixing typing issues in `IconButton`
+- Upgraded to `@ant-design/icon@5`
 
 ## @rjsf/chakra-ui
 
@@ -39,6 +39,7 @@ should change the heading of the (upcoming) version to include a major version b
 - Refactored `ArrayFieldItemTemplate` to use the new `ArrayFieldItemButtonsTemplate`
 - Updated the `ArrayFieldTemplate`, `ObjectFieldTemplate`, and `WrapIfAdditionalTemplate` to a unique id using the `buttonId()` function and adding consistent marker classes
 - Implemented the `GridTemplate` component, adding it to the `templates` for the theme
+- Implemented the new `LayoutGridField`, `LayoutMultiSchemaField` and `LayoutHeaderField` fields, adding them to the `fields` list
 
 ## @rjsf/fluent-ui
 

packages/core/src/components/fields/LayoutHeaderField.tsx

@@ -0,0 +1,49 @@
+import {
+  getTemplate,
+  getUiOptions,
+  titleId,
+  FieldProps,
+  FormContextType,
+  RJSFSchema,
+  StrictRJSFSchema,
+  TemplatesType,
+} from '@rjsf/utils';
+
+/** The `LayoutHeaderField` component renders a `TitleFieldTemplate` with an `id` derived from the `idSchema`
+ * and whether it is `required` from the props. The `title` is derived from the props as follows:
+ * - If there is a title in the `uiSchema`, it is displayed
+ * - Else, if there is an explicit `title` passed in the props, it is displayed
+ * - Otherwise, if there is a title in the `schema`, it is displayed
+ * - Finally, the `name` prop is displayed as the title
+ *
+ * @param props - The `LayoutHeaderField` for the component
+ */
+export default function LayoutHeaderField<
+  T = any,
+  S extends StrictRJSFSchema = RJSFSchema,
+  F extends FormContextType = any
+>(props: FieldProps<T, S, F>) {
+  const { idSchema, title, schema, uiSchema, required, registry, name } = props;
+  const options = getUiOptions<T, S, F>(uiSchema, registry.globalUiOptions);
+  const { title: uiTitle } = options;
+  const { title: schemaTitle } = schema;
+  const fieldTitle = uiTitle || title || schemaTitle || name;
+  if (!fieldTitle) {
+    return null;
+  }
+  const TitleFieldTemplate: TemplatesType<T, S, F>['TitleFieldTemplate'] = getTemplate<'TitleFieldTemplate', T, S, F>(
+    'TitleFieldTemplate',
+    registry,
+    options
+  );
+  return (
+    <TitleFieldTemplate
+      id={titleId<T>(idSchema)}
+      title={fieldTitle}
+      required={required}
+      schema={schema}
+      uiSchema={uiSchema}
+      registry={registry}
+    />
+  );
+}

packages/core/src/components/fields/index.ts

@@ -3,6 +3,7 @@ import { Field, FormContextType, RegistryFieldsType, RJSFSchema, StrictRJSFSchem
 import ArrayField from './ArrayField';
 import BooleanField from './BooleanField';
 import LayoutGridField from './LayoutGridField';
+import LayoutHeaderField from './LayoutHeaderField';
 import LayoutMultiSchemaField from './LayoutMultiSchemaField';
 import MultiSchemaField from './MultiSchemaField';
 import NumberField from './NumberField';
@@ -22,6 +23,7 @@ function fields<
     // ArrayField falls back to SchemaField if ArraySchemaField is not defined, which it isn't by default
     BooleanField,
     LayoutGridField,
+    LayoutHeaderField,
     LayoutMultiSchemaField,
     NumberField,
     ObjectField,

packages/core/test/LayoutHeaderField.test.tsx

@@ -0,0 +1,132 @@
+import { titleId, FieldProps, ID_KEY, IdSchema, Registry, TitleFieldProps } from '@rjsf/utils';
+import { render, screen, within } from '@testing-library/react';
+import noop from 'lodash/noop';
+
+import templates from '../src/components/templates';
+import LayoutHeaderField from '../src/components/fields/LayoutHeaderField';
+
+const TEST_ID = 'test-id';
+const REQUIRED_ID = 'required-id';
+
+const TITLE_BOLD = 'test';
+const TITLE_BOLD_2 = 'test ui';
+const TITLE_NORMAL = 'title';
+
+function TestTitleField(props: TitleFieldProps) {
+  const { id, title, required } = props;
+  return (
+    <div id={id} data-testid={TEST_ID}>
+      {title}
+      {required && <span data-testid={REQUIRED_ID} />}
+    </div>
+  );
+}
+
+describe('LayoutHeaderField', () => {
+  function getProps(overrideProps: Partial<FieldProps> = {}): FieldProps {
+    const { idSchema = {} as IdSchema, schema = {}, name = '', uiSchema = {}, required = false, title } = overrideProps;
+    return {
+      // required FieldProps stubbed
+      autofocus: false,
+      disabled: false,
+      errorSchema: {},
+      formContext: undefined,
+      formData: undefined,
+      onBlur: noop,
+      onChange: noop,
+      onFocus: noop,
+      readonly: false,
+      title,
+      required,
+      // end required FieldProps
+      idSchema,
+      schema,
+      uiSchema,
+      name,
+      registry: {
+        templates: {
+          ...templates(),
+          TitleFieldTemplate: TestTitleField,
+        },
+      } as Registry,
+    };
+  }
+
+  test('default render with no title is empty render', () => {
+    const props = getProps();
+    const { container } = render(<LayoutHeaderField {...props} />);
+
+    expect(container).toBeEmptyDOMElement();
+  });
+
+  test('name is provided, and it is required', () => {
+    const props = getProps({ name: TITLE_BOLD, required: true });
+    render(<LayoutHeaderField {...props} />);
+
+    // renders header field and has expected text and no id
+    const headerField = screen.getByTestId(TEST_ID);
+    expect(headerField).toHaveTextContent(TITLE_BOLD);
+    expect(headerField).toHaveAttribute('id', titleId('undefined'));
+
+    // Is required
+    const requiredSpan = within(headerField).getByTestId(REQUIRED_ID);
+    expect(requiredSpan).toBeInTheDocument();
+  });
+
+  test('name is provided, schema has title, idSchema has ID_KEY, not required', () => {
+    const props = getProps({
+      name: TITLE_BOLD,
+      schema: { title: TITLE_NORMAL },
+      idSchema: { [ID_KEY]: 'foo' } as IdSchema,
+    });
+    render(<LayoutHeaderField {...props} />);
+
+    // renders header field and has expected text and id
+    const headerField = screen.getByTestId(TEST_ID);
+    expect(headerField).toHaveTextContent(TITLE_NORMAL);
+    expect(headerField).toHaveAttribute('id', titleId(props.idSchema[ID_KEY]));
+
+    // Is not required
+    const requiredSpan = within(headerField).queryByTestId(REQUIRED_ID);
+    expect(requiredSpan).not.toBeInTheDocument();
+  });
+
+  test('title prop is passed, schema has title, idSchema has ID_KEY, required', () => {
+    const props = getProps({
+      title: TITLE_BOLD,
+      schema: { title: TITLE_NORMAL },
+      idSchema: { [ID_KEY]: 'foo' } as IdSchema,
+      required: true,
+    });
+    render(<LayoutHeaderField {...props} />);
+
+    // renders header field and has expected text and id
+    const headerField = screen.getByTestId(TEST_ID);
+    expect(headerField).toHaveTextContent(TITLE_BOLD);
+    expect(headerField).toHaveAttribute('id', titleId(props.idSchema[ID_KEY]));
+
+    // Is not required
+    const requiredSpan = within(headerField).getByTestId(REQUIRED_ID);
+    expect(requiredSpan).toBeInTheDocument();
+  });
+
+  test('uiSchema has ui:title, title prop is passed, no id, not required', () => {
+    const props = getProps({
+      title: TITLE_BOLD,
+      uiSchema: {
+        'ui:title': TITLE_BOLD_2,
+      },
+      idSchema: { [ID_KEY]: 'foo' } as IdSchema,
+    });
+    render(<LayoutHeaderField {...props} />);
+
+    // renders header field and has expected text and no id
+    const headerField = screen.getByTestId(TEST_ID);
+    expect(headerField).toHaveTextContent(TITLE_BOLD_2);
+    expect(headerField).toHaveAttribute('id', titleId(props.idSchema[ID_KEY]));
+
+    // Is not required
+    const requiredSpan = within(headerField).queryByTestId(REQUIRED_ID);
+    expect(requiredSpan).not.toBeInTheDocument();
+  });
+});

packages/docs/docs/advanced-customization/custom-widgets-fields.md

@@ -62,6 +62,9 @@ The default fields you can override are:
 - `DescriptionField`
 - `OneOfField`
 - `AnyOfField`
+- `LayoutGridField`
+- `LayoutMultiSchemaField`
+- `LayoutHeaderField`
 - `NullField`
 - `NumberField`
 - `ObjectField`