feat: [DSRN] Added TextArea

packages/design-system-react-native/src/components/Input/Input.test.tsx

@@ -46,13 +46,14 @@ describe('Input', () => {
     expect(input).toHaveStyle({ opacity: tw`opacity-50`.opacity });
   });
 
-  it('applies iOS placeholder lineHeight workaround when placeholder is visible', () => {
-    if (Platform.OS !== 'ios') {
-      return;
-    }
-
+  it('applies iOS placeholder lineHeight workaround when placeholder is visible and multiline is false', () => {
     const { getByTestId } = render(
-      <Input testID={TEST_ID} value="" placeholder="Disabled" />,
+      <Input
+        testID={TEST_ID}
+        value=""
+        placeholder="Disabled"
+        multiline={false}
+      />,
     );
 
     const input = getByTestId(TEST_ID);
@@ -74,6 +75,28 @@ describe('Input', () => {
     expect(input).not.toHaveStyle({ lineHeight: 0 });
   });
 
+  it('when multiline is true, does not apply lineHeight zero for visible placeholder on iOS', () => {
+    const { getByTestId } = render(
+      <Input testID={TEST_ID} value="" multiline placeholder="Placeholder" />,
+    );
+    const input = getByTestId(TEST_ID);
+    const lineHeight = getStyleProp(input.props.style, 'lineHeight');
+    expect(Platform.OS === 'ios' ? lineHeight !== 0 : true).toBe(true);
+  });
+
+  it('when multiline is true, resolved style includes non-zero lineHeight for BodyMd', () => {
+    const { getByTestId } = render(
+      <Input testID={TEST_ID} value="" multiline placeholder="p" />,
+    );
+    const input = getByTestId(TEST_ID);
+    const lineHeight = getStyleProp(input.props.style, 'lineHeight');
+    expect(lineHeight).toBeDefined();
+    expect(lineHeight).not.toBe(0);
+    const expectedParagraphLineHeight = (tw.style('text-body-md') as TextStyle)
+      .lineHeight;
+    expect(lineHeight).toBe(expectedParagraphLineHeight);
+  });
+
   it('removes placeholder lineHeight workaround after value changes from empty to non-empty', () => {
     const { getByTestId, rerender } = render(
       <Input testID={TEST_ID} value="" placeholder="Transition" />,

packages/design-system-react-native/src/components/Input/Input.tsx

@@ -30,13 +30,15 @@ export const Input = forwardRef<TextInput, InputProps>(
       onBlur,
       onFocus,
       autoFocus = false,
+      multiline,
       ...props
     },
     ref,
   ) => {
     const [isFocused, setIsFocused] = useState(autoFocus);
     const tw = useTailwind();
     const theme = useTheme();
+    const isMultiline = multiline === true;
 
     const placeholderTextColor = useMemo(
       () =>
@@ -59,7 +61,7 @@ export const Input = forwardRef<TextInput, InputProps>(
     const inputStyle = useMemo(
       () =>
         tw.style(
-          fontClass,
+          !isMultiline && fontClass,
           'text-default',
           'bg-default',
           'border',
@@ -73,6 +75,7 @@ export const Input = forwardRef<TextInput, InputProps>(
         ),
       [
         fontClass,
+        isMultiline,
         isStateStylesDisabled,
         isDisabled,
         isFocused,
@@ -82,8 +85,11 @@ export const Input = forwardRef<TextInput, InputProps>(
     );
 
     const variantTextStyle = useMemo(
-      () => MAP_TEXT_VARIANT_INPUT_METRICS[textVariant],
-      [textVariant],
+      () =>
+        isMultiline
+          ? tw.style(`text-${textVariant}`, fontClass)
+          : MAP_TEXT_VARIANT_INPUT_METRICS[textVariant],
+      [isMultiline, textVariant, fontClass, tw],
     );
 
     useEffect(() => {
@@ -113,15 +119,18 @@ export const Input = forwardRef<TextInput, InputProps>(
       // iOS-only workaround: when a placeholder is visible, native iOS
       // TextInput can render placeholder text vertically offset.
       // Keep this iOS-only because lineHeight: 0 can collapse text on Android.
+      // Skip for multiline: lineHeight 0 breaks paragraph layout; single-line only.
       Platform.OS === 'ios' &&
-        isPlaceholderVisible && { lineHeight: 0 as const },
+        isPlaceholderVisible &&
+        !isMultiline && { lineHeight: 0 as const },
       style,
     ].filter(Boolean);
 
     return (
       <TextInput
         ref={ref}
         {...props}
+        multiline={multiline}
         placeholder={placeholder}
         placeholderTextColor={placeholderTextColor}
         value={value}

packages/design-system-react-native/src/components/TextArea/README.md

@@ -0,0 +1,263 @@
+# TextArea
+
+TextArea is used to render a controlled, multiline text input inside a bordered container. Use [TextField](../TextField/README.md) when you need a single-line field or optional leading and trailing accessories.
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" placeholder="Notes..." />;
+```
+
+## Props
+
+### `value`
+
+Required controlled value for the TextArea.
+
+| TYPE     | REQUIRED | DEFAULT |
+| -------- | -------- | ------- |
+| `string` | Yes      | N/A     |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="hello" placeholder="Value example" />;
+```
+
+### `onChangeText`
+
+Optional callback when the text changes.
+
+| TYPE                     | REQUIRED | DEFAULT     |
+| ------------------------ | -------- | ----------- |
+| `(text: string) => void` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" onChangeText={(text) => {}} placeholder="Change handler" />;
+```
+
+### `placeholder`
+
+Optional placeholder string for the inner input.
+
+| TYPE     | REQUIRED | DEFAULT     |
+| -------- | -------- | ----------- |
+| `string` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" placeholder="Long description" />;
+```
+
+### `isReadOnly`
+
+When true, the inner input is not editable.
+
+| TYPE      | REQUIRED | DEFAULT |
+| --------- | -------- | ------- |
+| `boolean` | No       | `false` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" isReadOnly placeholder="Read-only" />;
+```
+
+### `onFocus`
+
+Optional handler when the inner input receives focus. TextArea composes this with its own focus border behavior. Do not pass `onFocus` through `inputProps`; use this prop instead.
+
+| TYPE       | REQUIRED | DEFAULT     |
+| ---------- | -------- | ----------- |
+| `function` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" placeholder="Focus" onFocus={() => {}} />;
+```
+
+### `onBlur`
+
+Optional handler when the inner input loses focus. TextArea composes this with its own focus border behavior. Do not pass `onBlur` through `inputProps`; use this prop instead.
+
+| TYPE       | REQUIRED | DEFAULT     |
+| ---------- | -------- | ----------- |
+| `function` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" placeholder="Blur" onBlur={() => {}} />;
+```
+
+### `inputProps`
+
+Additional props forwarded to the inner [Input](../Input/Input.tsx) / `TextInput`. Do not pass `placeholder`, `isReadOnly`, `onFocus`, `onBlur`, or `multiline` here; use the TextArea-level props where applicable. `placeholderTextColor` is omitted from the type; the inner `Input` sets it from the theme. For screen readers, set `inputProps.accessibilityLabel` and `inputProps.accessibilityHint`. You can use `inputProps.testID` to target the native `TextInput` in E2E tests.
+
+Use top-level `Box` / `View` props for layout and pointer handling (`pointerEvents`, margins, hit areas via wrappers, etc.). Keys reserved by TextArea (`style`, `twClassName`, `testID`, `children`, `accessible`, and keys owned by the TextArea API surface) are not passed through from this intersection.
+
+| TYPE                                                               | REQUIRED | DEFAULT     |
+| ------------------------------------------------------------------ | -------- | ----------- |
+| `TextAreaProps['inputProps']` (see `TextAreaProps` in the package) | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea
+  value=""
+  onChangeText={(text) => {}}
+  placeholder="Notes"
+  inputProps={{
+    autoCapitalize: 'sentences',
+    maxHeight: 200,
+    scrollEnabled: true,
+  }}
+/>;
+```
+
+### `inputRef`
+
+Ref to the inner `TextInput`. The component’s `ref` (from `forwardRef`) points at the root [Box](../Box/Box.tsx) (`View`).
+
+| TYPE             | REQUIRED | DEFAULT     |
+| ---------------- | -------- | ----------- |
+| `Ref<TextInput>` | No       | `undefined` |
+
+```tsx
+import { createRef } from 'react';
+import { TextArea } from '@metamask/design-system-react-native';
+import type { TextInput } from 'react-native';
+
+const inputRef = createRef<TextInput>();
+
+<TextArea value="" inputRef={inputRef} placeholder="Focus me" />;
+```
+
+### `isError`
+
+When true, the field shows an error state (container border).
+
+| TYPE      | REQUIRED | DEFAULT |
+| --------- | -------- | ------- |
+| `boolean` | No       | `false` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" isError placeholder="Error state" />;
+```
+
+### `isDisabled`
+
+When true, the field applies reduced opacity and forwards disabled state to the inner `Input` (non-editable).
+
+| TYPE      | REQUIRED | DEFAULT |
+| --------- | -------- | ------- |
+| `boolean` | No       | `false` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" isDisabled placeholder="Disabled" />;
+```
+
+### `autoFocus`
+
+When true, the inner input requests focus on mount.
+
+| TYPE      | REQUIRED | DEFAULT |
+| --------- | -------- | ------- |
+| `boolean` | No       | `false` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" autoFocus placeholder="Focused on mount" />;
+```
+
+### `inputElement`
+
+Optional node that replaces the default `Input`. `inputRef` is only forwarded when the default `Input` is rendered; with a custom `inputElement`, attach your own ref to the control if you need imperative focus or measurement.
+
+| TYPE        | REQUIRED | DEFAULT     |
+| ----------- | -------- | ----------- |
+| `ReactNode` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+import { TextInput } from 'react-native';
+
+<TextArea value="" inputElement={<TextInput placeholder="Custom input" />} />;
+```
+
+### `testID`
+
+Optional test id for the root [Box](../Box/Box.tsx). The root sets `accessible={false}` so assistive technologies focus the inner `TextInput`. The inner `TextInput` does not inherit this id; pass `inputProps.testID` if your tests must query the editable control directly.
+
+| TYPE     | REQUIRED | DEFAULT     |
+| -------- | -------- | ----------- |
+| `string` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+<TextArea value="" testID="my-text-area" placeholder="E2E" />;
+```
+
+### `twClassName`
+
+Use the `twClassName` prop to add Tailwind CSS classes to the component. These classes will be merged with the component's default classes using `twMerge`, allowing you to:
+
+- Add new styles that don't exist in the default component
+- Override the component's default styles when needed
+
+| TYPE     | REQUIRED | DEFAULT     |
+| -------- | -------- | ----------- |
+| `string` | No       | `undefined` |
+
+```tsx
+import { TextArea } from '@metamask/design-system-react-native';
+
+// Add additional styles
+<TextArea value="" twClassName="rounded-lg" placeholder="Extra rounding" />
+
+// Override default styles
+<TextArea
+  value=""
+  twClassName="bg-error-default"
+  placeholder="Override background"
+/>
+```
+
+### `style`
+
+Use the `style` prop to customize the component's appearance with React Native styles. For consistent styling, prefer using `twClassName` with Tailwind classes when possible. Use `style` with `tw.style()` for conditionals or dynamic values.
+
+| TYPE                   | REQUIRED | DEFAULT     |
+| ---------------------- | -------- | ----------- |
+| `StyleProp<ViewStyle>` | No       | `undefined` |
+
+```tsx
+import { useTailwind } from '@metamask/design-system-twrnc-preset';
+import { TextArea } from '@metamask/design-system-react-native';
+
+export const ConditionalExample = ({ isActive }: { isActive: boolean }) => {
+  const tw = useTailwind();
+
+  return (
+    <TextArea
+      value=""
+      placeholder="Conditional styling"
+      style={tw.style('bg-default', isActive && 'bg-success-default')}
+    />
+  );
+};
+```
+
+## References
+
+[MetaMask Design System Guides](https://www.notion.so/MetaMask-Design-System-Guides-Design-f86ecc914d6b4eb6873a122b83c12940)