Improve SimpleFormIterator UI

cypress/integration/create.js

@@ -42,7 +42,10 @@ describe('Create Page', () => {
         const backlinksContainer = cy
             .get(CreatePage.elements.input('backlinks.0.date'))
             .parents('.ra-input-backlinks');
-        backlinksContainer.contains('Remove').click();
+        // The button is visibility:hidden unless the user hovers on the row.
+        // It is not possible to simulate a CSS hover with cypress, so we use force: true
+        // see https://docs.cypress.io/api/commands/hover
+        backlinksContainer.get('.button-remove').click({ force: true });
         CreatePage.setValues([
             {
                 type: 'input',

docs/ArrayInput.md

@@ -57,10 +57,10 @@ const OrderEdit = () => (
             <TextInput source="customer" />
             <DateInput source="date" />
             <ArrayInput source="items">
-                <SimpleFormIterator>
-                    <TextInput source="name" />
-                    <NumberInput source="price" />
-                    <NumberInput source="quantity" />
+                <SimpleFormIterator inline>
+                    <TextInput source="name" helperText={false} />
+                    <NumberInput source="price" helperText={false} />
+                    <NumberInput source="quantity" helperText={false} />
                 </SimpleFormIterator>
             </ArrayInput>
         </SimpleForm>

docs/SimpleFormIterator.md

@@ -5,7 +5,7 @@ title: "SimpleFormIterator"
 
 # `<SimpleFormIterator>`
 
-This component provides a UI for editing arrays of objects, one row per object and one line per field.
+This component provides a UI for editing arrays of objects, one row per object.
 
 ![ArrayInput](./img/array-input.gif)
 
@@ -26,6 +26,26 @@ import {
     SimpleFormIterator
 } from 'react-admin';
 
+const OrderEdit = () => (
+    <Edit>
+        <SimpleForm>
+            <TextInput source="customer" />
+            <DateInput source="date" />
+            <ArrayInput source="items">
+                <SimpleFormIterator inline>
+                    <TextInput source="name" helperText={false} />
+                    <NumberInput source="price" helperText={false} />
+                    <NumberInput source="quantity" helperText={false} />
+                </SimpleFormIterator>
+            </ArrayInput>
+        </SimpleForm>
+    </Edit>
+);
+```
+
+In the example above, the inputs for each row appear inline, with no helper text. This dense layout is adapted to arrays with many items. If you need more room, omit the `inline` prop to use the default layout, where each input is displayed in a separate row.
+
+```jsx
 const OrderEdit = () => (
     <Edit>
         <SimpleForm>
@@ -43,6 +63,8 @@ const OrderEdit = () => (
 );
 ```
 
+![Simple form iterator block](./img/array-input-block.png)
+
 ## Props
 
 | Prop     | Required | Type           | Default               | Description                         |
@@ -53,6 +75,7 @@ const OrderEdit = () => (
 | `disableAdd` | Optional | `boolean` | `false` | When true, the user cannot add new rows |
 | `disableRemove` | Optional | `boolean` | `false` | When true, the user cannot remove rows |
 | `disableReordering` | Optional | `boolean` | `false` | When true, the user cannot reorder rows |
+| `fullWidth` | Optional | `boolean` | `false` | Set to true to push the actions to the right |
 | `getItemLabel` | Optional | `function` | `x => x` | Callback to render the label displayed in each row |
 | `inline` | Optional | `boolean` | `false` | When true, inputs are put on the same line |
 | `removeButton` | Optional | `ReactElement` | - | Component to render for the remove button |
@@ -198,28 +221,38 @@ When true, the up and down buttons aren't rendered, so the user cannot reorder r
 </SimpleFormIterator>
 ``` 
 
-## `getItemLabel`
+## `fullWidth`
 
-Callback to render the label displayed in each row. `<SimpleFormIterator>` calls this function with the current row index as an argument.
+When true, the row actions appear at the end of the row.
 
 ```jsx
-<SimpleFormIterator getItemLabel={index => `item #${index}`}>
+<SimpleFormIterator fullWidth>
     <TextInput source="name" />
     <NumberInput source="price" />
     <NumberInput source="quantity" />
 </SimpleFormIterator>
 ```
 
-Use a function returning an empty string to disable the line labels:
+![SimpleFormIterator full width](./img/simple-form-iterator-fullWidth.png)
+
+This differs with the default behavior, where the row actions appear after the inputs.
+
+![SimpleFormIterator default width](./img/simple-form-iterator-fullWidth-false.png)
+
+## `getItemLabel`
+
+`<SimpleFormIterator>` can add a label in front of each row, based on the row index. Set the `getItemLabel` prop with a callback to enable this feature.
 
 ```jsx
-<SimpleFormIterator getItemLabel={() => ''}>
+<SimpleFormIterator getItemLabel={index => `#${index + 1}`}>
     <TextInput source="name" />
     <NumberInput source="price" />
     <NumberInput source="quantity" />
 </SimpleFormIterator>
 ```
 
+![SimpleFormIterator with iterm label](./img/array-input-item-label.png)
+
 ## `inline`
 
 When true, inputs are put on the same line. Use this option to make the lines more compact, especially when the children are narrow inputs. 
@@ -234,6 +267,18 @@ When true, inputs are put on the same line. Use this option to make the lines mo
 
 ![Inline form iterator](./img/simple-form-iterator-inline.png)
 
+Without this prop, `<SimpleFormIterator>` will render one input per line.
+
+```jsx
+<SimpleFormIterator>
+    <TextInput source="name" />
+    <NumberInput source="price" />
+    <NumberInput source="quantity" />
+</SimpleFormIterator>
+```
+
+![Not Inline form iterator](./img/simple-form-iterator-not-inline.png)
+
 ## `removeButton`
 
 This prop lets you pass a custom element to replace the default Remove button. 
@@ -293,16 +338,16 @@ const OrderEdit = () => (
 
 ## `sx`
 
-You can override the style of the root element (a `<ul>` element) as well as those of the inner components thanks to the `sx` property. It relies on MUI System and supports CSS and shorthand properties (see [their documentation about it](https://mui.com/customization/how-to-customize/#overriding-nested-component-styles)).
+You can override the style of the root element (a `<div>` element) as well as those of the inner components thanks to the `sx` property. It relies on MUI System and supports CSS and shorthand properties (see [their documentation about it](https://mui.com/customization/how-to-customize/#overriding-nested-component-styles)).
 
 This property accepts the following subclasses:
 
 | Rule name                | Description                                               |
 |--------------------------|-----------------------------------------------------------|
 | `RaSimpleFormIterator-action`         | Applied to the action zone on each row (the one containing the Remove button) |
+| `RaSimpleFormIterator-add`            | Applied to the bottom line containing the Add button |
 | `RaSimpleFormIterator-form`           | Applied to the subform on each row |
-| `RaSimpleFormIterator-index`          | Applied to the index label |
-| `RaSimpleFormIterator-indexContainer` | Applied to the container of the index label and reorder buttons |
+| `RaSimpleFormIterator-index`          | Applied to the row label when `getItemLabel` is set |
 | `RaSimpleFormIterator-inline`         | Applied to rows when `inline` is true |
-| `RaSimpleFormIterator-leftIcon`       | Applied to the left icon on each row |
-| `RaSimpleFormIterator-line`           | Applied to each row |
+| `RaSimpleFormIterator-line`           | Applied to each row |
+| `RaSimpleFormIterator-list`           | Applied to the `<ul>` element |

examples/simple/src/posts/PostEdit.tsx

@@ -148,12 +148,12 @@ const PostEdit = () => {
                     </ImageInput>
                     {permissions === 'admin' && (
                         <ArrayInput source="authors">
-                            <SimpleFormIterator>
+                            <SimpleFormIterator inline>
                                 <ReferenceInput
                                     source="user_id"
                                     reference="users"
                                 >
-                                    <AutocompleteInput />
+                                    <AutocompleteInput helperText={false} />
                                 </ReferenceInput>
                                 <FormDataConsumer>
                                     {({
@@ -180,6 +180,7 @@ const PostEdit = () => {
                                                         name: 'Co-Writer',
                                                     },
                                                 ]}
+                                                helperText={false}
                                                 {...rest}
                                             />
                                         ) : null

packages/ra-ui-materialui/src/button/IconButtonWithTooltip.tsx

@@ -41,7 +41,6 @@ export const IconButtonWithTooltip = ({
                 aria-label={translatedLabel}
                 onClick={handleClick}
                 {...props}
-                size="large"
             />
         </Tooltip>
     );

packages/ra-ui-materialui/src/input/ArrayInput/AddItemButton.tsx

@@ -2,13 +2,19 @@ import * as React from 'react';
 import AddIcon from '@mui/icons-material/AddCircleOutline';
 import { useSimpleFormIterator } from './useSimpleFormIterator';
 
-import { Button, ButtonProps } from '../../button';
+import { IconButtonWithTooltip, ButtonProps } from '../../button';
 
 export const AddItemButton = (props: ButtonProps) => {
     const { add } = useSimpleFormIterator();
     return (
-        <Button label="ra.action.add" onClick={() => add()} {...props}>
-            <AddIcon />
-        </Button>
+        <IconButtonWithTooltip
+            label="ra.action.add"
+            size="small"
+            onClick={() => add()}
+            color="primary"
+            {...props}
+        >
+            <AddIcon fontSize="small" />
+        </IconButtonWithTooltip>
     );
 };

packages/ra-ui-materialui/src/input/ArrayInput/ArrayInput.spec.tsx

@@ -162,12 +162,12 @@ describe('<ArrayInput />', () => {
             </AdminContext>
         );
 
-        fireEvent.click(screen.getByText('ra.action.add'));
+        fireEvent.click(screen.getByLabelText('ra.action.add'));
         fireEvent.click(screen.getByText('ra.action.save'));
         await waitFor(() => {
             expect(screen.queryByText('array_min_length')).not.toBeNull();
         });
-        fireEvent.click(screen.getByText('ra.action.add'));
+        fireEvent.click(screen.getByLabelText('ra.action.add'));
         const firstId = screen.getAllByLabelText(
             'resources.bar.fields.arr.id *'
         )[0];
@@ -206,16 +206,14 @@ describe('<ArrayInput />', () => {
 
             setArrayInputVisible = setVisible;
 
-            return (
-                visible && (
-                    <ArrayInput resource="bar" source="arr">
-                        <SimpleFormIterator>
-                            <TextInput source="id" />
-                            <TextInput source="foo" />
-                        </SimpleFormIterator>
-                    </ArrayInput>
-                )
-            );
+            return visible ? (
+                <ArrayInput resource="bar" source="arr">
+                    <SimpleFormIterator>
+                        <TextInput source="id" />
+                        <TextInput source="foo" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            ) : null;
         };
 
         render(