Version v7.7.0

Release date

March 26th, 2024

Source code

Virtual colors

Virtual color is a special color which values should be different for light and dark color schemes. To define a virtual color, use virtualColor function which accepts an object with the following properties as a single argument:

name – color name, must be the same as the key in theme.colors object
light – a key of theme.colors object for light color scheme
dark – a key of theme.colors object for dark color scheme

To see the demo in action, switch between light and dark color schemes (Ctrl + J):

This box has virtual background color, it is pink in dark mode and cyan in light mode

import { createTheme, MantineProvider, virtualColor } from '@mantine/core';
import { Demo } from './Demo';

const theme = createTheme({
  colors: {
    primary: virtualColor({
      name: 'primary',
      dark: 'pink',
      light: 'cyan',
    }),
  },
});

function App() {
  return (
    <MantineProvider theme={theme}>
      <Demo />
    </MantineProvider>
  );
}

FloatingIndicator component

New FloatingIndicator component:

import { useState } from 'react';
import {
  IconArrowDown,
  IconArrowDownLeft,
  IconArrowDownRight,
  IconArrowLeft,
  IconArrowRight,
  IconArrowUp,
  IconArrowUpLeft,
  IconArrowUpRight,
  IconCircle,
} from '@tabler/icons-react';
import { FloatingIndicator, UnstyledButton } from '@mantine/core';
import classes from './Demo.module.css';

function Demo() {
  const [rootRef, setRootRef] = useState<HTMLDivElement | null>(null);
  const [controlsRefs, setControlsRefs] = useState<Record<string, HTMLButtonElement | null>>({});
  const [active, setActive] = useState('center');

  const setControlRef = (name: string) => (node: HTMLButtonElement) => {
    controlsRefs[name] = node;
    setControlsRefs(controlsRefs);
  };

  return (
    <div className={classes.root} dir="ltr" ref={setRootRef}>
      <FloatingIndicator
        target={controlsRefs[active]}
        parent={rootRef}
        className={classes.indicator}
      />

      <div className={classes.controlsGroup}>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('up-left')}
          ref={setControlRef('up-left')}
          mod={{ active: active === 'up-left' }}
        >
          <IconArrowUpLeft size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('up')}
          ref={setControlRef('up')}
          mod={{ active: active === 'up' }}
        >
          <IconArrowUp size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('up-right')}
          ref={setControlRef('up-right')}
          mod={{ active: active === 'up-right' }}
        >
          <IconArrowUpRight size={26} stroke={1.5} />
        </UnstyledButton>
      </div>
      <div className={classes.controlsGroup}>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('left')}
          ref={setControlRef('left')}
          mod={{ active: active === 'left' }}
        >
          <IconArrowLeft size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('center')}
          ref={setControlRef('center')}
          mod={{ active: active === 'center' }}
        >
          <IconCircle size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('right')}
          ref={setControlRef('right')}
          mod={{ active: active === 'right' }}
        >
          <IconArrowRight size={26} stroke={1.5} />
        </UnstyledButton>
      </div>
      <div className={classes.controlsGroup}>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('down-left')}
          ref={setControlRef('down-left')}
          mod={{ active: active === 'down-left' }}
        >
          <IconArrowDownLeft size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('down')}
          ref={setControlRef('down')}
          mod={{ active: active === 'down' }}
        >
          <IconArrowDown size={26} stroke={1.5} />
        </UnstyledButton>
        <UnstyledButton
          className={classes.control}
          onClick={() => setActive('down-right')}
          ref={setControlRef('down-right')}
          mod={{ active: active === 'down-right' }}
        >
          <IconArrowDownRight size={26} stroke={1.5} />
        </UnstyledButton>
      </div>
    </div>
  );
}

ScatterChart component

New ScatterChart component:

import { ScatterChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <ScatterChart
      h={350}
      data={data}
      dataKey={{ x: 'age', y: 'BMI' }}
      xAxisLabel="Age"
      yAxisLabel="BMI"
    />
  );
}

colorsTuple function

New colorsTuple function can be used to:

Use single color as the same color for all shades
Transform dynamic string arrays to Mantine color tuple (the array should still have 10 values)

import { colorsTuple, createTheme } from '@mantine/core';

const theme = createTheme({
  colors: {
    custom: colorsTuple('#FFC0CB'),
    dynamic: colorsTuple(
      Array.from({ length: 10 }, (_, index) => '#FFC0CB')
    ),
  },
});

use-mutation-observer hook

New useMutationObserver hook:

Press Ctrl + Shift + L to change direction

Direction was changed to: Not changed yet

import { useState } from 'react';
import { Kbd, Text } from '@mantine/core';
import { useMutationObserver } from '@mantine/hooks';

function Demo() {
  const [lastMutation, setLastMutation] = useState('');

  useMutationObserver(
    (mutations) => {
      mutations.forEach((mutation) => {
        if (mutation.type === 'attributes' && mutation.attributeName === 'dir') {
          mutation.target instanceof HTMLElement &&
            setLastMutation(mutation.target.getAttribute('dir') || '');
        }
      });
    },
    {
      attributes: true,
      attributeFilter: ['dir'],
    },
    () => document.documentElement
  );

  return (
    <>
      <Text>
        Press <Kbd>Ctrl</Kbd> + <Kbd>Shift</Kbd> + <Kbd>L</Kbd> to change direction
      </Text>

      <Text mt={10}>Direction was changed to: {lastMutation || 'Not changed yet'}</Text>
    </>
  );
}

use-state-history hook

New useStateHistory hook:

Current value: 1

{
  "history": [
    1
  ],
  "current": 0
}

import { Button, Code, Group, Text } from '@mantine/core';
import { useStateHistory } from '@mantine/hooks';

function Demo() {
  const [value, handlers, history] = useStateHistory(1);
  return (
    <>
      <Text>Current value: {value}</Text>
      <Group my="md">
        <Button onClick={() => handlers.set(Math.ceil(Math.random() * 100) + 1)}>Set value</Button>
        <Button onClick={() => handlers.back()}>Back</Button>
        <Button onClick={() => handlers.forward()}>Forward</Button>
        <Button onClick={() => handlers.reset()}>Reset</Button>
      </Group>
      <Code block>{JSON.stringify(history, null, 2)}</Code>
    </>
  );
}

Axis labels

AreaChart, BarChart and LineChart components now support xAxisLabel and yAxisLabel props:

import { AreaChart } from '@mantine/charts';
import { data } from './data';

function Demo() {
  return (
    <AreaChart
      h={300}
      data={data}
      dataKey="date"
      type="stacked"
      xAxisLabel="Date"
      yAxisLabel="Amount"
      series={[
        { name: 'Apples', color: 'indigo.6' },
        { name: 'Oranges', color: 'blue.6' },
        { name: 'Tomatoes', color: 'teal.6' },
      ]}
    />
  );
}

Documentation updates

New section has been added to the responsive guide on how to use mantine-hidden-from-{x} and mantine-visible-from-{x} classes.
Jest and Vitest guides configuration has been updated to include mocks for window.HTMLElement.prototype.scrollIntoView
CSS variables documentation has been updated to include more information about typography and colors variables

Help center updates

New articles added to the help center:

Other changes

SegmentedControl indicator positioning logic has been migrated to FloatingIndicator. It is now more performant and works better when used inside elements with transform: scale().
New use-mounted hook
Sparkline now supports connectNulls and areaProps props
Select, MultiSelect, Autocomplete and TagsInput components now support scrollAreaProps prop to pass props down to the ScrollArea component in the dropdown
Transition component now supports 4 new transitions: fade-up, fade-down, fade-left, fade-right
Default Modal transition was changed to fade-down. This change resolves issues with SegmentedControl indicator positioning when used inside modals.
You can now reference headings font sizes and line heights in fz and lh style props with h1, h2, h3, h4, h5, h6 values

Version v7.8.0

Version v7.6.0