Indent List

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Files
components/demo.tsx
'use client';

import React from 'react';

import { Plate } from '@udecode/plate/react';

import { editorPlugins } from '@/components/editor/plugins/editor-plugins';
import { useCreateEditor } from '@/components/editor/use-create-editor';
import { Editor, EditorContainer } from '@/components/plate-ui/editor';

import { DEMO_VALUES } from './values/demo-values';

export default function Demo({ id }: { id: string }) {
  const editor = useCreateEditor({
    plugins: [...editorPlugins],
    value: DEMO_VALUES[id],
  });

  return (
    <Plate editor={editor}>
      <EditorContainer variant="demo">
        <Editor />
      </EditorContainer>
    </Plate>
  );
}

Features

  • Flexible Block Indentation:

    • Set list indentation for any block type (paragraphs, headings, etc.)
    • Transform any block into a list item through indentation
    • More intuitive Word/Google Docs-like behavior
  • Simplified Structure - Differs from the List plugin:

    • Flat DOM structure where each indented block is independent
    • Each indented list block consists of a single ul or ol with one item
    • No strict parent-child relationships enforced
    • Better for free-form content organization
  • List Types:

    • Bulleted lists (unordered)
    • Numbered lists (ordered)
  • Shortcuts:

    • Combined with the autoformat plugin, use markdown shortcuts (-, *, 1.) to create lists
    • Tab/Shift+Tab for indentation control

For more information about the underlying indentation system, see the Indent doc.

Installation

npm install @udecode/plate-indent-list @udecode/plate-indent

Usage

import { IndentPlugin } from '@udecode/plate-indent/react';
import { IndentListPlugin } from '@udecode/plate-indent-list/react';
import { HEADING_KEYS } from '@udecode/plate-heading';
import { HeadingPlugin } from '@udecode/plate-heading/react';
import { ParagraphPlugin } from '@udecode/plate/react';
 
const plugins = [
  // ...otherPlugins,
  HeadingPlugin,
  IndentPlugin.configure({
    inject: {
      targetPlugins: [ParagraphPlugin.key, HEADING_KEYS.h1],
    }
  }),
  IndentListPlugin.configure({
    inject: {
      targetPlugins: [ParagraphPlugin.key, HEADING_KEYS.h1],
    }
  }),
];

Plugins

IndentListPlugin

Options

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    Function to determine indent list options for sibling elements.

    Function mapping HTML elements to list style types.

    Function to render components below indent list nodes.

API

getNextIndentList

Parameters

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    Entry of the current element.

    Options for getting next indent list.

ReturnsNodeEntry | undefined

    Entry of the next sibling with an indent list, or undefined if not found.

getPreviousIndentList

Gets the previous sibling entry with an indent list.

Parameters

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    Entry of the current element.

    Options for getting previous indent list.

ReturnsNodeEntry | undefined

    Entry of the previous sibling with an indent list, or undefined if not found.

indentList

Increases the indentation of the selected blocks.

OptionsIndentListOptions

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    List style type to use.

    • Default: ListStyleType.Disc

outdentList

Decreases the indentation of the selected blocks.

OptionsIndentListOptions

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    List style type to use.

    • Default: ListStyleType.Disc

someIndentList

Checks if some of the selected blocks have a specific list style type.

Parameters

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    List style type to check.

toggleIndentList

Toggles the indent list.

OptionsIndentListOptions

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    List style type to use.

Types

GetSiblingIndentListOptions

Used to provide options for getting the sibling indent list in a block of text.

Options

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    Get previous sibling entry.

    Get next sibling entry.

    This function is used to validate a sibling node during the lookup process. If it returns false, the next sibling is checked.

    Indicates whether to break the lookup when the sibling node has an indent level equal to the current node. If true, the lookup stops when a sibling node with the same indent level is found.

    A function that takes a TNode and returns a boolean value or undefined. This function is used to specify a condition under which the lookup process should be stopped.

    Indicates whether to break the lookup when a sibling node with a lower indent level is found. If true, the lookup stops when a sibling node with a lower indent level is found.

    Indicates whether to break the lookup when a sibling node with the same indent level but a different list style type is found. If true, the lookup stops when such a sibling node is found.

Hooks

useIndentListToolbarButton

A behavior hook for the indent list toolbar button.

State

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    List style type.

    Whether button is pressed.

Returnsobject

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    Props for the toolbar button.