Dropzone

Capture files from user with drag and drop

Source

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Docs

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Package

@mantine/dropzone

License

MIT

Installation

yarn add @mantine/dropzone

After installation import package styles at the root of your application:

import '@mantine/dropzone/styles.css';

Usage

Dropzone lets you capture one or more files from user. Component is based on react-dropzone and support all of its core features:

Accepts/rejects files based on provided mime types
Limits individual file size
Renders given children and provides context based component to display elements based on current status

Drag images here or click to select files

Attach as many files as you like, each file should not exceed 5mb

import { Group, Text, rem } from '@mantine/core';
import { IconUpload, IconPhoto, IconX } from '@tabler/icons-react';
import { Dropzone, DropzoneProps, IMAGE_MIME_TYPE } from '@mantine/dropzone';

export function BaseDemo(props: Partial<DropzoneProps>) {
  return (
    <Dropzone
      onDrop={(files) => console.log('accepted files', files)}
      onReject={(files) => console.log('rejected files', files)}
      maxSize={3 * 1024 ** 2}
      accept={IMAGE_MIME_TYPE}
      {...props}
    >
      <Group justify="center" gap="xl" mih={220} style={{ pointerEvents: 'none' }}>
        <Dropzone.Accept>
          <IconUpload
            style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-blue-6)' }}
            stroke={1.5}
          />
        </Dropzone.Accept>
        <Dropzone.Reject>
          <IconX
            style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-red-6)' }}
            stroke={1.5}
          />
        </Dropzone.Reject>
        <Dropzone.Idle>
          <IconPhoto
            style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-dimmed)' }}
            stroke={1.5}
          />
        </Dropzone.Idle>

        <div>
          <Text size="xl" inline>
            Drag images here or click to select files
          </Text>
          <Text size="sm" c="dimmed" inline mt={7}>
            Attach as many files as you like, each file should not exceed 5mb
          </Text>
        </div>
      </Group>
    </Dropzone>
  );
}

Dropzone.Accept, Dropzone.Reject and Dropzone.Idle

Dropzone.Accept, Dropzone.Reject and Dropzone.Idle components are visible only when the user performs certain action:

Dropzone.Accept is visible only when the user drags file that can be accepted over the dropzone
Dropzone.Reject is visible only when the user drags file that cannot be accepted over the dropzone
Dropzone.Idle is visible when the user does not drag anything over dropzone

Loading state

Set loading prop to indicate loading state with LoadingOverlay component. When loading props is true user cannot drop or select new files (Dropzone becomes disabled):

Drag images here or click to select files

Attach as many files as you like, each file should not exceed 5mb

import { Dropzone } from '@mantine/dropzone';

function Demo() {
  return (
    <Dropzone loading onDrop={() => {}}>
      {/* children */}
    </Dropzone>
  );
}

Disabled state

If you want to implement your own loading state you can disable Dropzone without LoadingOverlay. Same as with loading, when Dropzone is disabled user cannot drop or select new files:

Drag images here or click to select files

Attach as many files as you like, each file should not exceed 5mb

import { Dropzone } from '@mantine/dropzone';
import classes from './Demo.module.css';

function Demo() {
  return <BaseDemo disabled className={classes.disabled} />;
}

Open file browser manually

To open files browser from outside of component use openRef prop to get function that will trigger file browser:

Drag images here or click to select files

Attach as many files as you like, each file should not exceed 5mb

import { useRef } from 'react';
import { Button, Group } from '@mantine/core';
import { Dropzone } from '@mantine/dropzone';

function Demo() {
  const openRef = useRef<() => void>(null);

  return (
    <>
      <Dropzone openRef={openRef} onDrop={() => {}}>
        {/* children */}
      </Dropzone>

      <Group justify="center" mt="md">
        <Button onClick={() => openRef.current?.()}>Select files</Button>
      </Group>
    </>
  );
}

By default, Dropzone disables pointer events on its children for dragging events to work. So when we set activateOnClick to false, clicking on any children inside Dropzone will do nothing. However, You can set style pointerEvents: 'all' to make children events to work:

import { useRef } from 'react';
import { Button, Group } from '@mantine/core';
import { Dropzone } from '@mantine/dropzone';

function Demo() {
  const openRef = useRef<() => void>(null);

  return (
    <Dropzone
      openRef={openRef}
      onDrop={() => {}}
      activateOnClick={false}
      styles={{ inner: { pointerEvents: 'all' } }}
    >
      <Group justify="center">
        <Button onClick={() => openRef.current?.()}>Select files</Button>
      </Group>
    </Dropzone>
  );
}

Mime types

To specify file types provide an object with the keys set to the mime type and the values as an array of file extensions. Find more examples of accepting specific file types in the react-dropzone documentation.

import { Dropzone } from '@mantine/dropzone';

function Demo() {
  return (
    <Dropzone
      accept={{
        'image/*': [], // All images
        'text/html': ['.html', '.htm'],
      }}
    >
      {/* children */}
    </Dropzone>
  );
}

You can also specify file types by providing an array of mime types to accept prop:

import { Dropzone } from '@mantine/dropzone';

function Demo() {
  return (
    <Dropzone accept={['image/png', 'image/jpeg', 'image/sgv+xml', 'image/gif']}>
      {/* children */}
    </Dropzone>
  );
}

To save some research time you can use MIME_TYPES variable exported from @mantine/dropzone:

import { Dropzone, MIME_TYPES } from '@mantine/dropzone';

function Demo() {
  return (
    <Dropzone accept={[MIME_TYPES.png, MIME_TYPES.jpeg, MIME_TYPES.svg, MIME_TYPES.gif]}>
      {/* children */}
    </Dropzone>
  );
}

MIME_TYPES includes following data:

Key	Mime type
png	image/png
gif	image/gif
jpeg	image/jpeg
svg	image/svg+xml
webp	image/webp
avif	image/avif
mp4	video/mp4
zip	application/zip
csv	text/csv
pdf	application/pdf
doc	application/msword
docx	application/vnd.openxmlformats-officedocument.wordprocessingml.document
xls	application/vnd.ms-excel
xlsx	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ppt	application/vnd.ms-powerpoint
pptx	application/vnd.openxmlformats-officedocument.presentationml.presentation
exe	application/vnd.microsoft.portable-executable

Additionally you can use grouped mime types:

Variable	Mime types
IMAGE_MIME_TYPE	image/png, image/gif, image/jpeg, image/svg+xml, image/webp, image/avif
PDF_MIME_TYPE	application/pdf
MS_WORD_MIME_TYPE	application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document
MS_EXCEL_MIME_TYPE	application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
MS_POWERPOINT_MIME_TYPE	application/vnd.ms-powerpoint, application/vnd.openxmlformats-officedocument.presentationml.presentation

import { IMAGE_MIME_TYPE, Dropzone } from '@mantine/dropzone';

function Demo() {
  return <Dropzone accept={IMAGE_MIME_TYPE}>{/* children */}</Dropzone>;
}

Styles API

Dropzone root element has the following data attributes to change styles based on current status:

data-loading – when loading prop is true
data-accept – when user drags files that can be accepted over the dropzone
data-reject – when user drags files that cannot be accepted over the dropzone
data-idle – default state – user does not drag any files over dropzone

Drop images here

import { Text } from '@mantine/core';
import { Dropzone, IMAGE_MIME_TYPE } from '@mantine/dropzone';
import classes from './Demo.module.css';

function Demo() {
  return (
    <Dropzone onDrop={() => {}} accept={IMAGE_MIME_TYPE} className={classes.root}>
      <Text ta="center">Drop images here</Text>
    </Dropzone>
  );
}

Images previews

Drop images here

import { useState } from 'react';
import { Text, Image, SimpleGrid } from '@mantine/core';
import { Dropzone, IMAGE_MIME_TYPE, FileWithPath } from '@mantine/dropzone';

function Demo() {
  const [files, setFiles] = useState<FileWithPath[]>([]);

  const previews = files.map((file, index) => {
    const imageUrl = URL.createObjectURL(file);
    return <Image key={index} src={imageUrl} onLoad={() => URL.revokeObjectURL(imageUrl)} />;
  });

  return (
    <div>
      <Dropzone accept={IMAGE_MIME_TYPE} onDrop={setFiles}>
        <Text ta="center">Drop images here</Text>
      </Dropzone>

      <SimpleGrid cols={{ base: 1, sm: 4 }} mt={previews.length > 0 ? 'xl' : 0}>
        {previews}
      </SimpleGrid>
    </div>
  );
}

Get ref

import { useRef, useEffect } from 'react';
import { Dropzone } from '@mantine/dropzone';

function Demo() {
  const dropzoneRef = useRef<HTMLDivElement>(null);

  useEffect(() => {
    dropzoneRef.current.focus();
  }, []);

  return <Dropzone ref={dropzoneRef}>{/* children */}</Dropzone>;
}

Dropzone.FullScreen component

Dropzone.FullScreen lets you capture files dropped to browser window instead of specific area. It supports the same props as Dropzone component.

To preview component click button and drop images to browser window:

import { useState } from 'react';
import { Group, Text, Button, rem } from '@mantine/core';
import { IconUpload, IconPhoto, IconX } from '@tabler/icons-react';
import { Dropzone, IMAGE_MIME_TYPE } from '@mantine/dropzone';

function Demo() {
  const [active, setActive] = useState(false);

  return (
    <>
      <Group justify="center">
        <Button color={active ? 'red' : 'blue'} onClick={() => setActive((d) => !d)}>
          {active ? 'Deactivate' : 'Activate'} full screen dropzone
        </Button>
      </Group>

      <Dropzone.FullScreen
        active={active}
        accept={IMAGE_MIME_TYPE}
        onDrop={(files) => {
          console.log(files);
          setActive(false);
        }}
      >
        <Group justify="center" gap="xl" mih={220} style={{ pointerEvents: 'none' }}>
          <Dropzone.Accept>
            <IconUpload
              style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-blue-6)' }}
              stroke={1.5}
            />
          </Dropzone.Accept>
          <Dropzone.Reject>
            <IconX
              style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-red-6)' }}
              stroke={1.5}
            />
          </Dropzone.Reject>
          <Dropzone.Idle>
            <IconPhoto
              style={{ width: rem(52), height: rem(52), color: 'var(--mantine-color-dimmed)' }}
              stroke={1.5}
            />
          </Dropzone.Idle>

          <div>
            <Text size="xl" inline>
              Drag images here or click to select files
            </Text>
            <Text size="sm" c="dimmed" inline mt={7}>
              Attach as many files as you like, each file should not exceed 5mb
            </Text>
          </div>
        </Group>
      </Dropzone.FullScreen>
    </>
  );
}

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