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This extension automatically detects the direction of a configurable list of nodes and adds dir="ltr" or dir="rtl" to them.

Why not dir="auto"?

dir="auto" changes the text direction based on the element's content too, so why not use that?

  1. It doesn't give you granular control over the direction. For example, if you want to have different styles based on the direction you can't do that with dir="auto". There is :dir() pseudo-class that can help you in this situation but it's only supported in Firefox.

  2. You can't override it. dir="auto" uses the first character of the element to determine the direction and you can't change it unless you explicitly set the direction with dir="ltr|rtl".

Installation

# npm
npm install tiptap-text-direction

# yarn
yarn add tiptap-text-direction

# pnpm
pnpm install tiptap-text-direction

Usage

In this example I used React but it works with any framework that Tiptap supports.

import { useEditor, EditorContent } from "@tiptap/react";
import StarterKit from "@tiptap/starter-kit";
import TextDirection from "tiptap-text-direction";

const Tiptap = () => {
  const editor = useEditor({
    extensions: [
      StarterKit,
      TextDirection.configure({
        types: ["heading", "paragraph"],
      }),
    ],
  });

  return <EditorContent editor={editor} />;
};

You might also want to change the text alignment based on the dir attribute:

.ProseMirror p[dir="rtl"],
.ProseMirror h1[dir="rtl"],
.ProseMirror h2[dir="rtl"],
.ProseMirror h3[dir="rtl"],
.ProseMirror h4[dir="rtl"],
.ProseMirror h5[dir="rtl"],
.ProseMirror h6[dir="rtl"] {
  text-align: right;
}

.ProseMirror p[dir="ltr"],
.ProseMirror h1[dir="ltr"],
.ProseMirror h2[dir="ltr"],
.ProseMirror h3[dir="ltr"],
.ProseMirror h4[dir="ltr"],
.ProseMirror h5[dir="ltr"],
.ProseMirror h6[dir="ltr"] {
  text-align: left;
}

Demo

2022-07-09.20-44-39.mp4

HTML Output

In this example the defaultDirection is set to rtl (also a parent element has dir="rtl", in this case the <html> tag) so the extension didn't add dir="rtl" to RTL nodes.

<p dir="ltr">Hello</p>
<p dir="ltr">سلام hello</p>
<!-- This was `rtl` by default but we forced it be `ltr` -->
<ul>
  <li>
    <p dir="ltr">hello</p>
  </li>
  <li>
    <p>سلام</p>
  </li>
  <li>
    <p dir="ltr">sghl</p>
  </li>
</ul>
<h2>سلام</h2>
<h2 dir="ltr">hello</h2>

Options

types

A list of nodes where the dir attribute should be added to.

Default: []

TextDirection.configure({
  types: ["heading", "paragraph"],
});

defaultDirection

In case you have set the text direction in a parent element of the editor (most likely the <html> element), you can set defaultDirection to avoid adding the dir attribute to elements that have the same direction as the defaultDirection because it's not needed. It can reduce the HTML output's size.

Default: null

TextDirection.configure({
  defaultDirection: "rtl",
});

Commands

setTextDirection()

Set the text direction of the selected nodes to the specified value.

editor.commands.setTextDirection("rtl");

unsetTextDirection()

Unset the text direction back to the defaultDirection.

editor.commands.unsetTextDirection();

Keyboard shortcuts

Command Windows/Linux macOS
setTextDirection("ltr") Ctrl + Alt + l Cmd + Alt + l
setTextDirection("rtl") Ctrl + Alt + r Cmd + Alt + r