README

CKEditor 5: wordbreak Plugin (TYPO3 Extension)

Compatibility

TYPO3 12.4.0 - 13.4.99

What does this extension do?

• This extension provides general support for the <wbr> HTML element in CKEditor 5 and TYPO3
• Editors can insert the element by pressing a button at the current cursor position
• All <wbr> elements are highlighted in the editor (similar to the softhyphen)

<wbr>: The Line Break Opportunity element

• Allows a line break without adding a hyphen to the wrapped string
• Useful e.g. for long URLs or file paths, displayed on mobile websites or inside narrow parent elements

Line breaks are only applied by browsers if the word is too long for the surrounding element or viewport.

Further information: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/wbr

Screenshots

CKEditor in TYPO3 backend: Highlighted line breaks in editor UI

The <wbr> elements are highlighted with an arrow on a colored background (similar to the soft-hyphen in TYPO3's editor).

CKEditor in TYPO3 backend: HTML source view

In the source editing mode, <wbr> elements are visible in the HTML.

Frontend view (small viewport): Applied line breaks

In the frontend, the browser adds line breaks to the text where <wbr> elements are set (but only where necessary).

Installation

composer req sebkln/ckeditor-wordbreak

The extension needs to be installed as any other extension of TYPO3 CMS.

Perform the following steps:

1. Load and install the extension
2. If necessary, include the static template "CKEditor plugin: wordbreak" into your TypoScript template, or load the hidden Site Set sebkln/ckeditor-wordbreak as a dependency (see note below about lib.parseFunc in TYPO3 v13+)
3. Extend your CKEditor configuration (see below)

CKEditor configuration

editor:
  config:
    # 1. Import the plugin:
    importModules:
      - '@sebkln/ckeditor-wordbreak'

    toolbar:
      items:
        # 2. Add the button to your existing list of toolbar items:
        - WordBreak

# 3. Add <wbr> tag to list of tags that are allowed in the content:
processing:
  allowTags:
    - wbr

Using lib.parseFunc in TYPO3 v13+

Beginning with TYPO3 v13, the properties allowTags and denyTags are now optional.

This means you must only add this extension's TypoScript if you use a custom version of lib.parseFunc_RTE that already uses allowTags to restrict the HTML tags. Otherwise, all tags except <wbr> would be encoded in the frontend.

Please note that this change only applies to TypoScript. allowTags is still needed in the CKEditor's YAML configuration for processing.