# ScrollView

ScrollView is a container for long form content, such as order summary line items, that allows for scrolling so customers can expose more content as they view.

```tsx
import {
  reactExtension,
  ScrollView,
  View,
} from '@shopify/ui-extensions-react/checkout';

export default reactExtension(
  'purchase.checkout.block.render',
  () => <Extension />,
);

function Extension() {
  return (
    <ScrollView maxBlockSize={300}>
      <View
        border="base"
        padding="base"
        minBlockSize={50}
      >
        View
      </View>
      <View
        border="base"
        padding="base"
        minBlockSize={50}
      >
        View
      </View>
      <View
        border="base"
        padding="base"
        minBlockSize={50}
      >
        View
      </View>
      <View
        border="base"
        padding="base"
        minBlockSize={50}
      >
        View
      </View>
      <View
        border="base"
        padding="base"
        minBlockSize={50}
      >
        View
      </View>
    </ScrollView>
  );
}

```

```js
import {extension, ScrollView, View} from '@shopify/ui-extensions/checkout';

export default extension('purchase.checkout.block.render', (root) => {
  const scrollView = root.createComponent(ScrollView, {maxBlockSize: 400}, [
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
    root.createComponent(
      View,
      {border: 'base', padding: 'base', minBlockSize: 50},
      'View',
    ),
  ]);

  root.appendChild(scrollView);
});

```

## ScrollViewProps

### ScrollViewProps

### background

value: `MaybeConditionalStyle<Background>`

Adjust the background.

### border

value: `MaybeResponsiveConditionalStyle<MaybeShorthandProperty<BorderStyle>>`

Adjust the border style.

To shorten the code, it is possible to specify all the border style properties in one property.

For example:

- `base` means blockStart, inlineEnd, blockEnd and inlineStart border styles are `base`

- `['base', 'none']` means blockStart and blockEnd border styles are `base`, inlineStart and inlineEnd border styles are `none`

- `['base', 'none', 'dotted', 'base']` means blockStart border style is `base`, inlineEnd border style is `none`, blockEnd border style is `dotted` and  blockStart border style is `base`

### borderRadius

value: `MaybeResponsiveConditionalStyle<
    MaybeShorthandProperty<CornerRadius>
  >`


### borderWidth

value: `MaybeResponsiveConditionalStyle<
    MaybeShorthandProperty<BorderWidth>
  >`

Adjust the border width.

To shorten the code, it is possible to specify all the border width properties in one property.

For example:

- `base` means blockStart, inlineEnd, blockEnd and inlineStart border widths are `base`

- `['base', 'medium']` means blockStart and blockEnd border widths are `base`, inlineStart and inlineEnd border widths are `medium`

- `['base', 'medium', 'medium', 'base']` means blockStart border width is `base`, inlineEnd border width is `medium`, blockEnd border width is `medium` and  blockStart border width is `base`

### cornerRadius

value: `MaybeResponsiveConditionalStyle<
    MaybeShorthandProperty<CornerRadius>
  >`

Adjust the corner radius.

Provide a single value to apply the same corner radius to all four corners, two values to apply different corner radii to opposing corners, or four values to apply different corner radii to each individual corner.

For example:

- `base` means all 4 corner radii are `base`

- `['base', 'none']` means the StartStart and EndEnd corner radii are `base`, StartEnd and EndStart corner radii are `none`.    When the context’s language direction is left to right, StartStart and EndEnd corners are the top left and bottom right corners
   while StartEnd and EndStart corners are the top right and bottom left corners.

- `['base', 'none', 'small', 'base']` means StartStart corner radius is `base`, StartEnd corner radius is `none`, EndEnd corner radius is `small` and  EndStart corner radius is `base`

A `borderRadius` alias is available for this property. When both are specified, `cornerRadius` takes precedence.

### direction

value: `'block' | 'inline'`

The direction on which the content is scrollable.

`block`: Indicates that the content is scrollable on the main axis.

`inline`: Indicates that the content is scrollable on the cross axis.

### hint

value: `'innerShadow' | {type: 'pill'; content: string}`

Provides a hint to the user that the area is scrollable.

`pill`: renders a pill with a message at the end of the the scrollable area. It disappear as soon as the user starts scrolling.

`innerShadow`: renders an inner visual hint to indicate that the content is scrollable.

### id

value: `string`

A unique identifier for the component.

### maxBlockSize

value: `MaybeResponsiveConditionalStyle<
    number | `${number}%` | 'fill'
  >`

Adjust the maximum block size.

`number`: size in pixels.

`` `${number}%` ``: size in percentages.

`fill`: takes all the available space.

See [MDN explanation of maxBlockSize](https://developer.mozilla.org/en-US/docs/Web/CSS/max-block-size).

### maxInlineSize

value: `MaybeResponsiveConditionalStyle<
    number | `${number}%` | 'fill'
  >`

Adjust the maximum inline size.

`number`: size in pixels.

`` `${number}%` ``: size in percentages.

`fill`: takes all the available space.

See [MDN explanation of maxInlineSize](https://developer.mozilla.org/en-US/docs/Web/CSS/max-inline-size).

### minBlockSize

value: `MaybeResponsiveConditionalStyle<
    number | `${number}%` | 'fill'
  >`

Adjust the block size.

`number`: size in pixels.

`` `${number}%` ``: size in percentages.

`fill`: takes all the available space.

See [MDN explanation of minBlockSize](https://developer.mozilla.org/en-US/docs/Web/CSS/min-block-size).

### minInlineSize

value: `MaybeResponsiveConditionalStyle<
    number | `${number}%` | 'fill'
  >`

Adjust the minimum inline size.

`number`: size in pixels.

`` `${number}%` ``: size in percentages.

`fill`: takes all the available space.\

See [MDN explanation of minInlineSize](https://developer.mozilla.org/en-US/docs/Web/CSS/min-inline-size).

### onScroll

value: `(args: ScrollViewEvent) => void`

Callback function that is called when the scroll position changes. Allows to listen to events inside the component returning the position of the scroll.

Note: On touch devices, the onScroll event is fired only when the user finishes scrolling which differs from non touch devices, where the onScroll event is fired when the user scrolls

### onScrolledToEdge

value: `(args: ScrollViewEvent) => void`

Callback function that is called when the scroll position reaches one of the edges.

### padding

value: `MaybeResponsiveConditionalStyle<MaybeShorthandProperty<Spacing>>`

Adjust the padding.

To shorten the code, it is possible to specify all the padding properties in one property.


Examples:

- `base` means blockStart, inlineEnd, blockEnd and inlineStart paddings are `base`

- [`base`, `none`] means blockStart and blockEnd paddings are `base`, inlineStart and inlineEnd paddings are `none`

- [`base`, `none`, `loose`, `tight`] means blockStart padding is `base`, inlineEnd padding is `none`, blockEnd padding is `loose` and blockStart padding is `tight`

### scrollTo

value: `number | HTMLElement`

Scroll to a specific position or to an element when the component is first rendered.

This property allows you to set an initial scroll position or scroll to a specific element when the `ScrollView` component mounts. Note that this action will only be performed once, during the initial render of the component.

### ConditionalStyle

### conditionals

value: `ConditionalValue<T, AcceptedConditions>[]`

An array of conditional values.

### default

value: `T`

The default value applied when none of the conditional values specified in `conditionals` are met.

### ConditionalValue

### conditions

value: `AcceptedConditions`

The conditions that must be met for the value to be applied. At least one condition must be specified.

### value

value: `T`

The value that will be applied if the conditions are met.

### ViewportSizeCondition

### viewportInlineSize

value: `{ min: ViewportInlineSize; }`


### ScrollViewEvent

### position

value: `{ inline: number; block: number; }`

The current scroll position, in pixels.

### scrolledTo

value: `{ inline: "start" | "end"; block: "start" | "end"; }`

A flag to indicate if the scroll is at the start or end of an axis.