# ActionBar

- Page: https://jiguang132.com/resources/mantine/docs/action-bar
- Resource: Mantine Core (https://jiguang132.com/resources/mantine.md)
- All guides: https://jiguang132.com/resources/mantine/docs.md

Install: `npm install @mantine/core@9.7.1 @mantine/hooks@9.7.1`

## Version and compatibility

Pinned Mantine Core 9.7.1 requires React and React DOM `^19.2.0` and matching `@mantine/hooks@9.7.1`, from the installed npm package's peerDependencies. Do not force it into React 18 or another incompatible version. Explain upgrade impact and agree on a plan with the project owner; do not hide conflicts with --force/--legacy-peer-deps. The native Provider enables `theme.respectReducedMotion` and uses `forceColorScheme` for light/dark.

## Use case

Present actions for the current selection.

## Native props used by this example

These props are extracted from the local typechecked JSX and grouped by their owning native component. This is not an exhaustive prop list; see pinned source signatures and inheritance below.

| Component prop | Explanation |
| --- | --- |
| `ActionBar.opened` | Whether the controlled region is open. |
| `Button.onClick` | Local click handler; replace demo logic with an explicit business action. |

## Interaction and state checks

Current scenarios: Default. Check actual behavior after selecting supported disabled/error/read-only scenarios; components without those native states do not receive invented universal props. Verify keyboard focus and exits, then connect changed values through the native callback signature.

## Business integration boundary

Demo content/state is local, without server persistence, authorization or fetching. A static display component is not a completed business workflow.

## Host setup

Install pinned @mantine/core and @mantine/hooks, import @mantine/core/styles.css at the entry and use MantineProvider. The example's theme/variant are JGuang-authored host props, not universal native component APIs; forceColorScheme synchronizes the app theme. Native implementation source is a reading reference: use npm exports rather than copying internal engines. This batch covers Core, not dates/charts/forms extension packages. Detailed upstream prose remains English.


## Runnable usage

```tsx
import { useState } from 'react';
import * as M from '@mantine/core';
import '@mantine/core/styles.css';


function ComponentPreview({ variant = 'Default' }: { variant?: string }) {
const [open, setOpen] = useState(false);
return <M.ActionBar opened><M.Group><M.Text>3 selected</M.Text><M.Button onClick={() => setOpen(!open)}>{open ? "Done" : "Apply"}</M.Button></M.Group></M.ActionBar>;
}
export default function Example({ variant = 'Default', theme = 'light' }: { variant?: string; theme?: 'light' | 'dark' }) {
return <M.MantineProvider forceColorScheme={theme} theme={{ respectReducedMotion: true }}><ComponentPreview variant={variant} /></M.MantineProvider>;
}

```


## Preview states

Default

The example uses the native Mantine API. For supported input demos, change the local variant to Disabled, Invalid or Read only; these are example labels, not new component props. Keep the documented data, controlled values, stores and compound children when adapting the example.



## Usage

`ActionBar` is a fixed-position bottom bar that appears when items are selected,
providing contextual bulk actions. It is built using [Affix](/core/affix), [Transition](/core/transition)
and [Paper](/core/paper) components.

`ActionBar` content can be any React node. Use `ActionBar.Divider` to
add a vertical divider and `ActionBar.CloseButton` to add a close button that
calls `onClose`.

`ActionBar` root has `role="group"`. Set `aria-label` to describe what the actions apply to.



## With ActionIcon buttons



## Placement

By default, `ActionBar` is centered at the bottom of the screen. You can change
the position with the `position` prop. When using non-centered positions, set
`styles={{ root: { marginInline: 0 } }}` to remove the auto centering.



## Close on Escape

By default, `ActionBar` does not close when `Escape` key is pressed. Set `closeOnEscape`
to enable this behavior:



## Transitions

`ActionBar` is animated with the [Transition](/core/transition) component,
`{ transition: 'pop', duration: 200 }` by default. Use `transitionProps` to change
the transition, its duration and timing function:

```tsx
import { ActionBar, Button } from '@mantine/core';

function Demo() {
  return (
    <ActionBar opened transitionProps={{ transition: 'slide-up', duration: 300 }}>
      <Button>Delete</Button>
    </ActionBar>
  );
}
```

## keepMounted

By default, the action bar is removed from the DOM when it is closed. Set `keepMounted`
to keep it mounted, for example to preserve form state inside the bar. The hidden bar is wrapped
in React `Activity`. To hide it with `display: none` instead, set `transitionProps={{ keepMountedMode: 'display-none' }}`:

```tsx
import { ActionBar, Button } from '@mantine/core';

function Demo() {
  return (
    <ActionBar opened={false} keepMounted>
      <Button>Delete</Button>
    </ActionBar>
  );
}
```


## Source-backed parameter reference

Implementation signatures and types are generated from the pinned local source. Optional props, native inherited types, union branches and never exclusions are preserved. A forwardRef implementation's ref is a React reference, not an additional business prop.


```ts
ActionBar(_props)
```



```ts
export type ActionBarStylesNames =
  | 'root'
  | ActionBarDividerStylesNames
  | ActionBarCloseButtonStylesNames;

export interface ActionBarProps
  extends
    BoxProps,
    AffixBaseProps,
    PaperBaseProps,
    StylesApiProps<ActionBarFactory>,
    ElementProps<'div'> {
  /** Controls visibility */
  opened: boolean;

  /** Called when close button is clicked or Escape is pressed */
  onClose?: () => void;

  /** Props passed down to the `Transition` component, `{ transition: 'pop', duration: 200 }` by default */
  transitionProps?: TransitionOverride;

  /** Key of `theme.shadows` or any valid CSS `box-shadow` value */
  shadow?: MantineShadow;

  /** Key of `theme.radius` or any valid CSS value to set `border-radius` */
  radius?: MantineRadius;

  /** Determines whether the action bar should be closed when `Escape` key is pressed, `false` by default */
  closeOnEscape?: boolean;

  /** `aria-label` of the actions group, `'Actions'` by default */
  'aria-label'?: string;

  /** If set, the action bar is kept in the DOM when closed. React `Activity` is used to preserve its state while it is hidden, `false` by default */
  keepMounted?: boolean;

  children: React.ReactNode;
}

export type ActionBarFactory = Factory<{
  props: ActionBarProps;
  ref: HTMLDivElement;
  stylesNames: ActionBarStylesNames;
  staticComponents: {
    Divider: typeof ActionBarDivider;
    CloseButton: typeof ActionBarCloseButton;
  };
}>;

export type Mod = Record<string, any> | string;

export type BoxMod = Mod | Mod[] | BoxMod[];

export interface BoxProps extends MantineStyleProps {
  /** Class added to the root element, if applicable */
  className?: string | undefined;

  /** Inline style added to root component element, can subscribe to theme defined on MantineProvider */
  style?: MantineStyleProp;

  /** CSS variables defined on root component element */
  __vars?: CssVarsProp;

  /** `size` property passed down the HTML element */
  __size?: string;

  /** Breakpoint above which the component is hidden with `display: none` */
  hiddenFrom?: MantineBreakpoint;

  /** Breakpoint below which the component is hidden with `display: none` */
  visibleFrom?: MantineBreakpoint;

  /** Determines whether component should be hidden in light color scheme with `display: none` */
  lightHidden?: boolean;

  /** Determines whether component should be hidden in dark color scheme with `display: none` */
  darkHidden?: boolean;

  /** Element modifiers transformed into `data-` attributes, for example, `{ 'data-size': 'xl' }`, falsy values are removed */
  mod?: BoxMod;
}

export type ElementProps<
  ElementType extends React.ElementType,
  PropsToOmit extends string = never,
> = Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>;

export interface CSSProperties extends React.CSSProperties {
  [key: string]: any;
}

type MantineStyle = CSSProperties | ((theme: MantineTheme) => CSSProperties);

export type MantineStyleProp = MantineStyle | MantineStyle[] | MantineStyleProp[] | undefined;

export type CssVariable = `--${string}`;

export type CssVariables<Variable extends string = CssVariable> = Partial<Record<Variable, string>>;

export type CssVars<Variable extends string = CssVariable> =
  | CssVariables<Variable>
  | ((theme: MantineTheme) => CssVariables<Variable>)
  | CssVars<Variable>[];

export type CssVarsProp<Variable extends string = CssVariable> =
  | CssVars<Variable>
  | CssVars<Variable>[];
```


### Native and external types

External types remain defined by React or native dependencies, not manually expanded into guessed props. The installed version's TypeScript definitions are authoritative.


```ts
Factory<{
  props: ActionBarProps;
  ref: HTMLDivElement;
  stylesNames: ActionBarStylesNames;
  staticComponents: {
    Divider: typeof ActionBarDivider;
    CloseButton: typeof ActionBarCloseButton;
  };
}>
MantineStyleProps
React.CSSProperties
MantineTheme
Partial<Record<Variable, string>>
Record<Variable, string>
Variable
MantineBreakpoint
Record<string, any>
AffixBaseProps
PaperBaseProps
StylesApiProps<ActionBarFactory>
React.ElementType
Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>
React.ComponentProps<ElementType>
ElementType
PropsToOmit
TransitionOverride
MantineShadow
MantineRadius
React.ReactNode
HTMLDivElement
ActionBarDividerStylesNames
ActionBarCloseButtonStylesNames
```

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