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NodeFormattingExtension

Summary​

This extension adds node formatting to your text editor.

Features​

Text alignment​

Text can be aligned in different ways like left, right, center, justify, etc.

const AlignButtons = () => {
  const commands = useCommands();
  return (
    <>
      <button onClick={() => commands.leftAlign()}>Left</button>
      <button onClick={() => commands.centerAlign()}>Center</button>
      <button onClick={() => commands.rightAlign()}>Right</button>
    </>
  );
};

Indent​

Text can be structured with different levels of indent.

const IndentButtons = () => {
  const commands = useCommands();
  return (
    <>
      <button onClick={() => commands.decreaseIndent()}>&lt;&lt;</button>
      <button onClick={() => commands.increaseIndent()}>&gt;&gt;</button>
    </>
  );
};

Line height​

The line height can be adjusted to be:

  • More compact: showing more lines of text per page allows to convey more information
  • More spacious: adding more whitespace between lines eases reading
const LineHeightButtons = () => {
  const commands = useCommands();
  return (
    <>
      <button onClick={() => commands.setLineHeight(1)}>Narrow</button>
      <button onClick={() => commands.setLineHeight(2)}>Wide</button>
    </>
  );
};

Usage​

Installation​

This extension is installed for you when you install the main remirror package.

You can use the imports in the following way:

import { NodeFormattingExtension } from 'remirror/extensions';

The extension is provided by the @remirror/extension-node-formatting package.

Examples​

Source code
import 'remirror/styles/all.css';

import React from 'react';
import { htmlToProsemirrorNode } from 'remirror';
import {
  BlockquoteExtension,
  BulletListExtension,
  NodeFormattingExtension,
} from 'remirror/extensions';
import {
  CommandButtonGroup,
  CommandMenuItem,
  DropdownButton,
  IndentationButtonGroup,
  Remirror,
  TextAlignmentButtonGroup,
  ThemeProvider,
  Toolbar,
  useCommands,
  useRemirror,
} from '@remirror/react';

const Basic: React.FC = () => {
  const { manager, state, onChange } = useRemirror({
    extensions: () => [
      new BlockquoteExtension(),
      new NodeFormattingExtension(),
      new BulletListExtension(),
    ],
    content: '<p>Click buttons to change alignment, indent,<br> and line height</p>',
    stringHandler: htmlToProsemirrorNode,
  });

  return (
    <ThemeProvider>
      <Remirror
        manager={manager}
        autoFocus
        onChange={onChange}
        initialContent={state}
        autoRender='end'
      >
        <Toolbar>
          <TextAlignmentButtonGroup />
          <IndentationButtonGroup />
          <LineHeightButtonDropdown />
        </Toolbar>
      </Remirror>
    </ThemeProvider>
  );
};

const LineHeightButtonDropdown = () => {
  const { setLineHeight } = useCommands();
  return (
    <CommandButtonGroup>
      <DropdownButton aria-label='Line height' icon='lineHeight'>
        <CommandMenuItem
          commandName='setLineHeight'
          onSelect={() => setLineHeight(1)}
          enabled={setLineHeight.enabled(1)}
          label='Narrow'
        />
        <CommandMenuItem
          commandName='setLineHeight'
          onSelect={() => setLineHeight(2)}
          enabled={setLineHeight.enabled(2)}
          label='Wide'
        />
      </DropdownButton>
    </CommandButtonGroup>
  );
};

export default Basic;

API​