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metamask-extension/ui/components/component-library/button-base/README.mdx
Garrett Bear 8bdf820c70
button base housekeeping (#16336)
* button base housekeeping

* add pixel size to description

* snapshot update
2022-11-03 11:41:16 -07:00

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import { Story, Canvas, ArgsTable } from '@storybook/addon-docs';
import { ButtonBase } from './button-base';
### This is a base component. It should not be used in your feature code directly but as a "base" for other UI components
# ButtonBase
The `ButtonBase` is the base component for buttons.
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--default-story" />
</Canvas>
## Props
The `ButtonBase` accepts all props below as well as all [Box](/docs/ui-components-ui-box-box-stories-js--default-story#props) component props
<ArgsTable of={ButtonBase} />
### Size
Use the `size` prop and the `SIZES` object from `./ui/helpers/constants/design-system.js`
to change the size of `ButtonBase`. Defaults to `SIZES.MD`
Optional: `BUTTON_BASE_SIZES` from `./button-base` object can be used instead of `SIZES`.
Possible sizes include:
- `SIZES.AUTO` inherits the font-size of the parent element.
- `SIZES.SM` 32px
- `SIZES.MD` 40px
- `SIZES.LG` 48px
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--size" />
</Canvas>
```jsx
import { SIZES } from '../../../helpers/constants/design-system';
import { ButtonBase } from '../ui/component-library';
<ButtonBase size={SIZES.AUTO} />
<ButtonBase size={SIZES.SM} />
<ButtonBase size={SIZES.MD} />
<ButtonBase size={SIZES.LG} />
```
### Block
Use boolean `block` prop to quickly enable a full width block button
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--block" />
</Canvas>
```jsx
import { DISPLAY } from '../../../helpers/constants/design-system';
import { ButtonBase } from '../ui/component-library';
<ButtonBase>Default Button</ButtonBase>
<ButtonBase block>Block Button</ButtonBase>
```
### As
Use the `as` box prop to change the element of `ButtonBase`. Defaults to `button`.
When an `href` prop is passed it will change the element to an anchor(`a`) tag.
Button `as` options:
- `button`
- `a`
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--as" />
</Canvas>
```jsx
import { ButtonBase } from '../ui/component-library';
<ButtonBase as="button">Button Element</ButtonBase>
<ButtonBase as="a" href="#">
Anchor Element
</ButtonBase>
```
### Href
When an `href` prop is passed it will change the element to an anchor(`a`) tag.
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--href" />
</Canvas>
```jsx
import { ButtonBase } from '../ui/component-library';
<ButtonBase href="/metamask">Anchor Element</ButtonBase>;
```
### Disabled
Use the boolean `disabled` prop to disable button
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--disabled" />
</Canvas>
```jsx
import { ButtonBase } from '../ui/component-library';
<ButtonBase disabled>Disabled Button</ButtonBase>;
```
### Loading
Use the boolean `loading` prop to set loading spinner
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--loading" />
</Canvas>
```jsx
import { ButtonBase } from '../ui/component-library';
<ButtonBase loading>Loading Button</ButtonBase>;
```
### Icon
Use the `icon` prop and the `ICON_NAMES` object from `./ui/components/component-library/icon` to select icon.
<Canvas>
<Story id="ui-components-component-library-button-base-button-base-stories-js--icon" />
</Canvas>
```jsx
import { ButtonBase } from '../ui/component-library';
import { ICON_NAMES } from '../icon';
<ButtonBase icon={ICON_NAMES.ADD_SQUARE_FILLED}>Button</ButtonBase>;
```