metamask-extension/ui/components/component-library/text

import { Story, Canvas, ArgsTable } from '@storybook/addon-docs';
import ActionableMessage from '../../ui/actionable-message';
import { Text } from './text';

# Text

> This Text (fka Typography) component has breaking changes in variant options and the line heights associated to each variant.

Good typography improves readability, legibility and hierarchy of information.

<Canvas>
  <Story id="components-componentlibrary-text--default-story" />
</Canvas>

## Props

The `Text` accepts all props below as well as all [Box](/docs/components-ui-box--default-story#props) component props

<ArgsTable of={Text} />

### Variant

Use the `variant` prop and the `TextVariant` enum from `./ui/helpers/constants/design-system.js` to change the font size of the component.

`TextVariant` options:

- TextVariant.displayMd (default renders as `h1` tag)
- TextVariant.headingLg (default renders as `h2` tag)
- TextVariant.headingMd (default renders as `h3` tag)
- TextVariant.headingSm (default renders as `h4` tag)
- TextVariant.bodyLgMedium (default renders as `p` tag)
- TextVariant.bodyMd (default renders as `p` tag)
- TextVariant.bodyMdBold (default renders as `p` tag)
- TextVariant.bodySm (default renders as `p` tag)
- TextVariant.bodySmBold (default renders as `p` tag)
- TextVariant.bodyXs (default renders as `p` tag)
- TextVariant.inherit (default renders as `span` tag)

<Canvas>
  <Story id="components-componentlibrary-text--variant" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.displayMd}>display-md</Text>
<Text variant={TextVariant.headingLg}>heading-lg</Text>
<Text variant={TextVariant.headingMd}>heading-md</Text>
<Text variant={TextVariant.headingSm}>heading-sm</Text>
<Text variant={TextVariant.bodyLgMedium}>body-lg-medium</Text>
<Text variant={TextVariant.bodyMd}>body-md</Text>
<Text variant={TextVariant.bodyMdBold}>body-md-bold</Text>
<Text variant={TextVariant.bodySm}>body-sm</Text>
<Text variant={TextVariant.bodySmBold}>body-sm-bold</Text>
<Text variant={TextVariant.bodyXs}>body-xs</Text>
<Text variant={TextVariant.inherit}>inherit</Text>
```

### Color

Use the `color` prop and the `TextColor` enum from `./ui/helpers/constants/design-system.js` to change the color of the `Text` component.

<Canvas>
  <Story id="components-componentlibrary-text--color-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { TextColor, BackgroundColor } from '../../../helpers/constants/design-system';

<Text color={TextColor.textDefault}>
  text-default
</Text>
<Text color={TextColor.textAlternative}>
  text-alternative
</Text>
<Text color={TextColor.textMuted}>
  text-muted
</Text>
<Text color={TextColor.primaryDefault}>
  primary-default
</Text>
<Text color={TextColor.primaryInverse} backgroundColor={BackgroundColor.primaryDefault}>
  primary-inverse
</Text>
<Text color={TextColor.errorDefault}>
  error-default
</Text>
<Text color={TextColor.errorInverse} backgroundColor={BackgroundColor.errorDefault}>
  error-inverse
</Text>
<Text color={TextColor.successDefault}>
  success-default
</Text>
<Text color={TextColor.successInverse} backgroundColor={BackgroundColor.successDefault}>
  success-inverse
</Text>
<Text color={TextColor.warningDefault}>
  warning-default
</Text>
<Text color={TextColor.warningInverse} backgroundColor={BackgroundColor.warningDefault}>
  warning-inverse
</Text>
<Text color={TextColor.infoDefault}>
  info-default
</Text>
<Text color={TextColor.infoInverse} backgroundColor={BackgroundColor.infoDefault}>
  info-inverse
</Text>
```

### Font Weight

Use the `fontWeight` prop and the `FontWeight` enum from `./ui/helpers/constants/design-system.js` to change the font weight of the `Text` component. There are 3 font weights:

- `FontWeight.Normal` = `normal` || `400`
- `FontWeight.Medium` = `medium` || `500`
- `FontWeight.Bold` = `bold` || `700`

<Canvas>
  <Story id="components-componentlibrary-text--font-weight-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { FontWeight } from '../../../helpers/constants/design-system';

<Text fontWeight={FontWeight.Normal}>
  normal
</Text>
<Text fontWeight={FontWeight.Medium}>
  medium
</Text>
<Text fontWeight={FontWeight.Bold}>
  bold
</Text>
```

### Font Style

Use the `fontStyle` prop and the `FontStyle` enum from `./ui/helpers/constants/design-system.js` to change the font style of the `Text` component. There are 2 font styles:

- `FontStyle.Normal`
- `FontStyle.Italic`

<Canvas>
  <Story id="components-componentlibrary-text--font-style-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { FontStyle } from '../../../helpers/constants/design-system';

<Text fontStyle={FontStyle.Normal}>
  normal
</Text>
<Text fontStyle={FontStyle.Italic}>
  bold
</Text>
```

### Text Transform

Use the `textTransform` prop and the `TextTransform` enum from `./ui/helpers/constants/design-system.ts` to change the text alignment of the `Text` component

<Canvas>
  <Story id="components-componentlibrary-text--text-transform-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { TextTransform } from '../../../helpers/constants/design-system';

<Text textAlign={TextTransform.Uppercase}>
  uppercase
</Text>
<Text textAlign={TextTransform.Lowercase}>
  lowercase
</Text>
<Text textAlign={TextTransform.Capitalize}>
  capitalize
</Text>
```

### Text Align

Use the `textAlign` prop and the `TextAlign` enum from `./ui/helpers/constants/design-system.ts` to change the text alignment of the `Text` component

<Canvas>
  <Story id="components-componentlibrary-text--text-align-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { TextAlign } from '../../../helpers/constants/design-system';

<Text textAlign={TextAlign.Left}>
  left
</Text>
<Text textAlign={TextAlign.Center}>
  center
</Text>
<Text textAlign={TextAlign.Right}>
  right
</Text>
<Text textAlign={TextAlign.Justify}>
  justify
</Text>
<Text textAlign={TextAlign.End}>
  end
</Text>
```

### Overflow Wrap

Use the `overflowWrap` prop and the `OverflowWrap` enum from `./ui/helpers/constants/design-system.ts` to change the overflow wrap of the `Text` component

<Canvas>
  <Story id="components-componentlibrary-text--overflow-wrap-story" />
</Canvas>

```jsx
import { Text } from '../../component-library';
import { OverflowWrap } from '../../../helpers/constants/design-system';

<div
  style={{
    width: 250,
    border: '1px solid var(--color-error-default)',
    display: 'block',
  }}
>
  <Text overflowWrap={OverflowWrap.Normal}>
    {OverflowWrap.Normal}: 0x39013f961c378f02c2b82a6e1d31e9812786fd9d
  </Text>
  <Text overflowWrap={OverflowWrap.BreakWord}>
    {OverflowWrap.BreakWord}: 0x39013f961c378f02c2b82a6e1d31e9812786fd9d
  </Text>
</div>;
```

### Ellipsis

Use the boolean `ellipsis` prop to change the if the `Text` component to have an ellipsis.

<Canvas>
  <Story id="components-componentlibrary-text--ellipsis" />
</Canvas>

```jsx
import { Text } from '../../component-library';

<div
  style={{
    width: 250,
    border: '1px solid var(--color-error-default)',
    display: 'block',
  }}
>
  <Text ellipsis>Ellipsis: 0x39013f961c378f02c2b82a6e1d31e9812786fd9d</Text>
  <Text>No Ellipsis: 0x39013f961c378f02c2b82a6e1d31e9812786fd9d</Text>
</div>;
```

### As

Use the `as` prop to change the root html element of the `Text` component

You can also utilize the `ValidTag` enum from `./text.types` to ensure that you are using a valid html element

<Canvas>
  <Story id="components-componentlibrary-text--as" />
</Canvas>

```jsx
import { Text } from '../../component-library';

<Text as="dd">dd</Text>
<Text as="div">div</Text>
<Text as="dt">dt</Text>
<Text as="em">em</Text>
<Text as="h1">h1</Text>
<Text as="h2">h2</Text>
<Text as="h3">h3</Text>
<Text as="h4">h4</Text>
<Text as="h5">h5</Text>
<Text as="h6">h6</Text>
<Text as="li">li</Text>
<Text as="p">p</Text>
<Text as="span">span</Text>
<Text as="strong">strong</Text>
<Text as="input" placeholder="input"></Text>
```

Renders the html:

```html
<dd>dd</dd>
<div>div</div>
<dt>dt</dt>
<em>em</em>
<h1>h1</h1>
<h2>h2</h2>
<h3>h3</h3>
<h4>h4</h4>
<h5>h5</h5>
<h6>h6</h6>
<li>li</li>
<p>p</p>
<span>span</span>
<strong>strong</strong>
<input placeholder="input" />
```

### Text Direction

Use the `textDirection` prop and the `TextDirection` enum from `./text.types` to change the text direction of `Text`

<Canvas>
  <Story id="components-componentlibrary-text--text-direction-story" />
</Canvas>

```jsx
import { Text, TextDirection } from '../../component-library';

<Text textDirection={TextDirection.LeftToRight}>
  This is left to right (ltr) for English and most languages
</Text>
<Text textDirection={TextDirection.RightToLeft}>
  This is right to left (rtl) for use with other laguanges such as Arabic. This Enlgish example is incorrect usage.
</Text>
<Text textDirection={TextDirection.Auto}>
  Let the user agent decide with the auto option
</Text>
```

### Strong

Using the `as` prop with the value of `strong` will render the `Text` component as a `strong` element and any `strong` emlements used within a `Text` component will be supported with bold styles.

<Canvas>
  <Story id="components-componentlibrary-text--strong" />
</Canvas>

```jsx
import { Text } from '../../component-library';

<Text as="strong">
  This is an as="strong" demo.
</Text>
<Text>
  This is a <strong>strong element</strong> demo.
</Text>
```

### Box Props

Use any valid box props [Box](/?path=/story/components-ui-box--default-story) component props to the Text component.

### Class Name

Adds an additional class to the `Text` component

### Children

The text content of the `Text` component

---

# Converting from `Typography` to `Text`

The `Typography` component has been deprecated in favor of the `Text` component. Below are code examples converting from `Typography` to `Text`.

### Variant

Table below is the 1:1 mapping of `TypographyVariant` to `TextVariant` and the html element that needs to be rendered.

The new `Text` component does not have matching default elements for `TypographyVariant.H5`, `TypographyVariant.H6`, `TypographyVariant.H7` or `TypographyVariant.H8` or `TypographyVariant.H9` variant.

If you need to use these variants, please use the `as` prop to render the correct html element.

| TypographyVariant                                          | Typography Tag | TextVariant           | Text Default Tag |
| ---------------------------------------------------------- | -------------- | --------------------- | ---------------- |
| [TypographyVariant.H1](#typographyvarianth1)               | h1             | TextVariant.displayMd | h1               |
| [TypographyVariant.H2](#typographyvarianth2)               | h2             | TextVariant.headingLg | h2               |
| [TypographyVariant.H3](#typographyvarianth3)               | h3             | TextVariant.headingMd | h3               |
| [TypographyVariant.H4](#typographyvarianth4)               | h4             | TextVariant.headingSm | h4               |
| [TypographyVariant.H5](#typographyvarianth5)               | h5             | TextVariant.bodyMd    | p                |
| [TypographyVariant.H6](#typographyvarianth6)               | h6             | TextVariant.bodySm    | p                |
| [TypographyVariant.Paragraph](#typographyvariantparagraph) | p              | TextVariant.bodyMd    | p                |
| [TypographyVariant.H7](#typographyvarianth7)               | h6             | TextVariant.bodySm    | p                |
| [TypographyVariant.H8](#typographyvarianth8)               | h6             | TextVariant.bodyXs    | p                |
| [TypographyVariant.H9](#typographyvarianth9)               | h6             | TextVariant.bodyXs    | p                |

#### TypographyVariant.H1

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typography variant={TypographyVariant.H1}>Demo</Typography>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.displayMd}>Demo</Text>;
```

#### TypographyVariant.H2

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H2}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.headingLg}>Demo</Text>;
```

#### TypographyVariant.H3

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H3}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.headingMd}>Demo</Text>;
```

#### TypographyVariant.H4

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H4}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.headingSm}>Demo</Text>;
```

#### TypographyVariant.H5

Requires `as="h6"` prop for 1:1 conversion

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H5}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodyMd} as="h6">
  Demo
</Text>;
```

#### TypographyVariant.H6

Requires `as="h6"` prop for 1:1 conversion

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H6}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodySm} as="h6">
  Demo
</Text>;
```

#### TypographyVariant.Paragraph

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.Paragraph}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodyMd}>Demo</Text>;
```

#### TypographyVariant.H7

Requires `as="h6"` prop for 1:1 conversion

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H7}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodySm} as="h6">
  Demo
</Text>;
```

#### TypographyVariant.H8

Requires `as="h6"` prop for 1:1 conversion

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H8}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodyXs} as="h6">
  Demo
</Text>;
```

#### TypographyVariant.H9

Requires `as="h6"` prop for 1:1 conversion

```jsx
// Before
import { TypographyVariant } from '../../../helpers/constants/design-system';

<Typograpghy variant={TypographyVariant.H9}>Demo</Typograpghy>;

// After
import { TextVariant } from '../../../helpers/constants/design-system';

<Text variant={TextVariant.bodyXs} as="h6">
  Demo
</Text>;
```

### Align

The prop name `align` has been deprecated in favor of `textAlign`

Values using the `TextAlign` object from `./ui/helpers/constants/design-system.js` remain the same

```jsx
// Before
<Typography align={TEXT_ALIGN.CENTER}>Demo</Typography>;

// After
<Text textAlign={TextAlign.Center}>Demo</Text>;
```

### Box Props

Box props are now integrated with the `Text` component. Valid box props: [Box](/?path=/story/components-ui-box--default-story)

You no longer need to pass these props as an object through `boxProps`

```jsx
// Before
<Typography
  boxProps={{
    backgroundColor: Color.infoMuted,
    borderColor: Color.infoDefault,
    padding: 4,
    borderRadius: 4,
  }}
  color={Color.textDefault}
>
  Demo
</Typography>;

// After
<Text
  backgroundColor={Color.infoMuted}
  borderColor={Color.infoDefault}
  padding={4}
  borderRadius={4}
  color={Color.textDefault}
>
  Demo
</Text>;
```