Enhancement/2122 add description to array renderer

packages/examples/src/examples/arrays-with-detail.ts

@@ -32,6 +32,7 @@ export const schema = {
     occupation: { type: 'string' },
     comments: {
       type: 'array',
+      description: 'Description for array with details',
       minItems: 2,
       maxItems: 8,
       items: {

packages/examples/src/examples/stringArray.ts

@@ -28,6 +28,7 @@ export const schema = {
   type: 'object',
   properties: {
     comments: {
+      description: 'Description for array of String Type',
       type: 'array',
       items: {
         type: 'string',

packages/material-renderers/src/additional/MaterialListWithDetailRenderer.tsx

@@ -64,6 +64,7 @@ export const MaterialListWithDetailRenderer = ({
   config,
   rootSchema,
   translations,
+  description,
 }: ArrayLayoutProps) => {
   const [selectedIndex, setSelectedIndex] = useState(undefined);
   const handleRemoveItem = useCallback(
@@ -113,6 +114,7 @@ export const MaterialListWithDetailRenderer = ({
           required,
           appliedUiSchemaOptions.hideRequiredAsterisk
         )}
+        description={description}
         errors={errors}
         path={path}
         enabled={enabled}

packages/material-renderers/src/complex/MaterialTableControl.tsx

@@ -433,6 +433,7 @@ export class MaterialTableControl extends React.Component<
   render() {
     const {
       label,
+      description,
       path,
       schema,
       rootSchema,
@@ -458,6 +459,7 @@ export class MaterialTableControl extends React.Component<
             <TableToolbar
               errors={errors}
               label={label}
+              description={description}
               addItem={this.addItem}
               numColumns={isObjectSchema ? headerCells.length : 1}
               path={path}

packages/material-renderers/src/complex/TableToolbar.tsx

@@ -29,7 +29,15 @@ import {
   JsonSchema,
   ArrayTranslations,
 } from '@jsonforms/core';
-import { IconButton, TableRow, Tooltip, Grid, Typography } from '@mui/material';
+import {
+  IconButton,
+  TableRow,
+  Tooltip,
+  Grid,
+  Typography,
+  FormHelperText,
+  Stack,
+} from '@mui/material';
 import { Add as AddIcon } from '@mui/icons-material';
 import ValidationIcon from './ValidationIcon';
 import NoBorderTableCell from './NoBorderTableCell';
@@ -38,6 +46,7 @@ export interface MaterialTableToolbarProps {
   numColumns: number;
   errors: string;
   label: string;
+  description: string;
   path: string;
   uischema: ControlElement;
   schema: JsonSchema;
@@ -56,6 +65,7 @@ const TableToolbar = React.memo(function TableToolbar({
   numColumns,
   errors,
   label,
+  description,
   path,
   addItem,
   schema,
@@ -66,26 +76,29 @@ const TableToolbar = React.memo(function TableToolbar({
   return (
     <TableRow>
       <NoBorderTableCell colSpan={numColumns}>
-        <Grid
-          container
-          justifyContent={'flex-start'}
-          alignItems={'center'}
-          spacing={2}
-        >
-          <Grid item>
-            <Typography variant={'h6'}>{label}</Typography>
-          </Grid>
-          <Grid item>
-            {errors.length !== 0 && (
-              <Grid item>
-                <ValidationIcon
-                  id='tooltip-validation'
-                  errorMessages={errors}
-                />
-              </Grid>
-            )}
+        <Stack>
+          <Grid
+            container
+            justifyContent={'flex-start'}
+            alignItems={'center'}
+            spacing={2}
+          >
+            <Grid item>
+              <Typography variant={'h6'}>{label}</Typography>
+            </Grid>
+            <Grid item>
+              {errors.length !== 0 && (
+                <Grid item>
+                  <ValidationIcon
+                    id='tooltip-validation'
+                    errorMessages={errors}
+                  />
+                </Grid>
+              )}
+            </Grid>
           </Grid>
-        </Grid>
+          {description && <FormHelperText>{description}</FormHelperText>}
+        </Stack>
       </NoBorderTableCell>
       {enabled ? (
         <NoBorderTableCell align='right' style={fixedCellSmall}>

packages/material-renderers/src/layouts/ArrayToolbar.tsx

@@ -1,10 +1,19 @@
-import { Grid, IconButton, Toolbar, Tooltip, Typography } from '@mui/material';
-import { Add as AddIcon } from '@mui/icons-material';
+import {
+  FormHelperText,
+  Grid,
+  IconButton,
+  Stack,
+  Toolbar,
+  Tooltip,
+  Typography,
+} from '@mui/material';
+import AddIcon from '@mui/icons-material/Add';
 import React from 'react';
 import ValidationIcon from '../complex/ValidationIcon';
 import { ArrayTranslations } from '@jsonforms/core';
 export interface ArrayLayoutToolbarProps {
   label: string;
+  description: string;
   errors: string;
   path: string;
   enabled: boolean;
@@ -14,6 +23,7 @@ export interface ArrayLayoutToolbarProps {
 }
 export const ArrayLayoutToolbar = React.memo(function ArrayLayoutToolbar({
   label,
+  description,
   errors,
   addItem,
   path,
@@ -23,51 +33,54 @@ export const ArrayLayoutToolbar = React.memo(function ArrayLayoutToolbar({
 }: ArrayLayoutToolbarProps) {
   return (
     <Toolbar disableGutters={true}>
-      <Grid container alignItems='center' justifyContent='space-between'>
-        <Grid item>
-          <Grid
-            container
-            justifyContent={'flex-start'}
-            alignItems={'center'}
-            spacing={2}
-          >
-            <Grid item>
-              <Typography variant={'h6'}>{label}</Typography>
+      <Stack>
+        <Grid container alignItems='center' justifyContent='space-between'>
+          <Grid item>
+            <Grid
+              container
+              justifyContent={'flex-start'}
+              alignItems={'center'}
+              spacing={2}
+            >
+              <Grid item>
+                <Typography variant={'h6'}>{label}</Typography>
+              </Grid>
+              <Grid item>
+                {errors.length !== 0 && (
+                  <Grid item>
+                    <ValidationIcon
+                      id='tooltip-validation'
+                      errorMessages={errors}
+                    />
+                  </Grid>
+                )}
+              </Grid>
             </Grid>
+          </Grid>
+          {enabled && (
             <Grid item>
-              {errors.length !== 0 && (
+              <Grid container>
                 <Grid item>
-                  <ValidationIcon
-                    id='tooltip-validation'
-                    errorMessages={errors}
-                  />
-                </Grid>
-              )}
-            </Grid>
-          </Grid>
-        </Grid>
-        {enabled && (
-          <Grid item>
-            <Grid container>
-              <Grid item>
-                <Tooltip
-                  id='tooltip-add'
-                  title={translations.addTooltip}
-                  placement='bottom'
-                >
-                  <IconButton
-                    aria-label={translations.addTooltip}
-                    onClick={addItem(path, createDefault())}
-                    size='large'
+                  <Tooltip
+                    id='tooltip-add'
+                    title={translations.addTooltip}
+                    placement='bottom'
                   >
-                    <AddIcon />
-                  </IconButton>
-                </Tooltip>
+                    <IconButton
+                      aria-label={translations.addTooltip}
+                      onClick={addItem(path, createDefault())}
+                      size='large'
+                    >
+                      <AddIcon />
+                    </IconButton>
+                  </Tooltip>
+                </Grid>
               </Grid>
             </Grid>
-          </Grid>
-        )}
-      </Grid>
+          )}
+        </Grid>
+        {description && <FormHelperText>{description}</FormHelperText>}
+      </Stack>
     </Toolbar>
   );
 });

packages/material-renderers/src/layouts/MaterialArrayLayout.tsx

@@ -66,6 +66,7 @@ const MaterialArrayLayoutComponent = (props: ArrayLayoutProps) => {
     config,
     uischemas,
     translations,
+    description,
   } = props;
   const appliedUiSchemaOptions = merge({}, config, props.uischema.options);
 
@@ -78,6 +79,7 @@ const MaterialArrayLayoutComponent = (props: ArrayLayoutProps) => {
           required,
           appliedUiSchemaOptions.hideRequiredAsterisk
         )}
+        description={description}
         errors={errors}
         path={path}
         enabled={enabled}

packages/material-renderers/test/renderers/MaterialArrayControl.test.tsx

@@ -283,6 +283,50 @@ describe('Material array control', () => {
     expect(rows).toHaveLength(3);
   });
 
+  it('should render description', () => {
+    const descriptionSchema = {
+      ...fixture.schema,
+      description: 'This is an array description',
+    };
+
+    const core = initCore(descriptionSchema, fixture.uischema, fixture.data);
+    wrapper = mount(
+      <JsonFormsStateProvider
+        initState={{ renderers: materialRenderers, core }}
+      >
+        <MaterialArrayControlRenderer
+          schema={descriptionSchema}
+          uischema={fixture.uischema}
+        />
+      </JsonFormsStateProvider>
+    );
+    expect(
+      wrapper.text().includes('This is an array description')
+    ).toBeTruthy();
+    expect(wrapper.find('thead .MuiFormHelperText-root').exists()).toBeTruthy();
+  });
+
+  it('should not render description container if there is none', () => {
+    const descriptionSchema = {
+      ...fixture.schema,
+    };
+    // make sure there is no description
+    delete descriptionSchema.description;
+
+    const core = initCore(descriptionSchema, fixture.uischema, fixture.data);
+    wrapper = mount(
+      <JsonFormsStateProvider
+        initState={{ renderers: materialRenderers, core }}
+      >
+        <MaterialArrayControlRenderer
+          schema={descriptionSchema}
+          uischema={fixture.uischema}
+        />
+      </JsonFormsStateProvider>
+    );
+    expect(wrapper.find('thead .MuiFormHelperText-root').exists()).toBeFalsy();
+  });
+
   it('should delete an item', () => {
     const core = initCore(fixture.schema, fixture.uischema, fixture.data);
     const onChangeData: any = {

packages/material-renderers/test/renderers/MaterialArrayLayout.test.tsx

@@ -23,7 +23,7 @@
   THE SOFTWARE.
 */
 import './MatchMediaMock';
-import { ControlElement } from '@jsonforms/core';
+import { ControlElement, JsonSchema7 } from '@jsonforms/core';
 import * as React from 'react';
 
 import { materialRenderers } from '../../src';
@@ -50,7 +50,7 @@ const data = [
     message2: 'Yolo 2',
   },
 ];
-const schema = {
+const schema: JsonSchema7 = {
   type: 'array',
   items: {
     type: 'object',
@@ -66,7 +66,7 @@ const schema = {
   },
 };
 
-const nestedSchema = {
+const nestedSchema: JsonSchema7 = {
   type: 'array',
   items: {
     ...schema,
@@ -568,4 +568,46 @@ describe('Material array layout', () => {
     expect(getChildLabel(wrapper, 0)).toBe('El Barto was here 2');
     expect(getChildLabel(wrapper, 1)).toBe('Yolo 2');
   });
+
+  it('should render description', () => {
+    const descriptionSchema = {
+      ...nestedSchema,
+      description: 'This is an array description',
+    };
+
+    wrapper = mount(
+      <JsonForms
+        data={data}
+        schema={descriptionSchema}
+        uischema={uischema}
+        renderers={materialRenderers}
+      />
+    );
+    expect(
+      wrapper.text().includes('This is an array description')
+    ).toBeTruthy();
+    expect(
+      wrapper.find('.MuiToolbar-root .MuiFormHelperText-root').exists()
+    ).toBeTruthy();
+  });
+
+  it('should not render description container if there is none', () => {
+    const descriptionSchema = {
+      ...nestedSchema,
+    };
+    // make sure there is no description
+    delete descriptionSchema.description;
+
+    wrapper = mount(
+      <JsonForms
+        data={data}
+        schema={descriptionSchema}
+        uischema={uischema}
+        renderers={materialRenderers}
+      />
+    );
+    expect(
+      wrapper.find('.MuiToolbar-root .MuiFormHelperText-root').exists()
+    ).toBeFalsy();
+  });
 });