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Wagtail Code Block provides PrismJS syntax highlighting in Wagtail.

Project description

Wagtail Code Block

Wagtail Code Block is a syntax highlighted block for source code for the Wagtail CMS. It features real-time highlighting in the Wagtail editor, the front end, line numbering, and support for PrismJS themes.

It uses the PrismJS library both in Wagtail Admin and the website and requires jQuery.

Example Usage

from wagtailcodeblock.blocks import CodeBlock

class ContentStreamBlock(StreamBlock):
    heading = TextBlock()
    paragraph = TextBlock()
    code = CodeBlock(label='Code')

You can also force it to use a single language by providing a language code which must be included in your WAGTAIL_CODE_BLOCK_LANGUAGES setting:

code = CodeBlock(label='Bash Code', language='bash')

Screenshot of the CMS Editor Interface

Admin in Action

Installation & Setup

To install Wagtail Code Block simply run:

pip install wagtailcodeblock

And add wagtailcodeblock to your INSTALLED_APPS setting:


Django Settings


Wagtail Code Block defaults to the PrismJS "Coy" theme, which looks good with Wagtail's CMS editor design. You can choose a different theme by configuring WAGTAIL_CODE_BLOCK_THEME in your Django settings. PrismJS provides several themes:

For example, in you want to use the Solarized Light theme: WAGTAIL_CODE_BLOCK_THEME = 'solarizedlight' If you want to use the Default theme: WAGTAIL_CODE_BLOCK_THEME = None

Languages Available

You can customize the languages available by configuring WAGTAIL_CODE_BLOCK_LANGUAGES in your Django settings. By default, it will be set with these languages, since most users are in the Python web development community:

    ('bash', 'Bash/Shell'),
    ('css', 'CSS'),
    ('diff', 'diff'),
    ('html', 'HTML'),
    ('javascript', 'Javascript'),
    ('json', 'JSON'),
    ('python', 'Python'),
    ('scss', 'SCSS'),
    ('yaml', 'YAML'),

Each language in this setting is a tuple of the PrismJS code and a descriptive label. If you want use all available languages, here is a list:

    ('abap', 'ABAP'),
    ('actionscript', 'ActionScript'),
    ('ada', 'Ada'),
    ('apacheconf', 'Apache Configuration'),
    ('apl', 'APL'),
    ('applescript', 'AppleScript'),
    ('arduino', 'Arduino'),
    ('arff', 'ARFF'),
    ('asciidoc', 'AsciiDoc'),
    ('asm6502', '6502 Assembly'),
    ('aspnet', 'ASP.NET (C#)'),
    ('autohotkey', 'AutoHotkey'),
    ('autoit', 'AutoIt'),
    ('bash', 'Bash'),
    ('basic', 'BASIC'),
    ('batch', 'Batch'),
    ('bison', 'Bison'),
    ('brainfuck', 'Brainfuck'),
    ('bro', 'Bro'),
    ('c', 'C'),
    ('clike', 'C-like'),
    ('csharp', 'C#'),
    ('cpp', 'C++'),
    ('coffeescript', 'CoffeeScript'),
    ('clojure', 'Clojure'),
    ('crystal', 'Crystal'),
    ('csp', 'Content-Security-Policy'),
    ('css', 'CSS'),
    ('css-extras', 'CSS Extras'),
    ('d', 'D'),
    ('dart', 'Dart'),
    ('diff', 'Diff'),
    ('django', 'Django/Jinja2'),
    ('docker', 'Docker'),
    ('eiffel', 'Eiffel'),
    ('elixir', 'Elixir'),
    ('elm', 'Elm'),
    ('erb', 'ERB'),
    ('erlang', 'Erlang'),
    ('fsharp', 'F#'),
    ('flow', 'Flow'),
    ('fortran', 'Fortran'),
    ('gedcom', 'GEDCOM'),
    ('gherkin', 'Gherkin'),
    ('git', 'Git'),
    ('glsl', 'GLSL'),
    ('go', 'Go'),
    ('graphql', 'GraphQL'),
    ('groovy', 'Groovy'),
    ('haml', 'Haml'),
    ('handlebars', 'Handlebars'),
    ('haskell', 'Haskell'),
    ('haxe', 'Haxe'),
    ('http', 'HTTP'),
    ('hpkp', 'HTTP Public-Key-Pins'),
    ('hsts', 'HTTP Strict-Transport-Security'),
    ('ichigojam', 'IchigoJam'),
    ('icon', 'Icon'),
    ('inform7', 'Inform 7'),
    ('ini', 'Ini'),
    ('io', 'Io'),
    ('j', 'J'),
    ('java', 'Java'),
    ('javascript', 'JavaScript'),
    ('jolie', 'Jolie'),
    ('json', 'JSON'),
    ('julia', 'Julia'),
    ('keyman', 'Keyman'),
    ('kotlin', 'Kotlin'),
    ('latex', 'LaTeX'),
    ('less', 'Less'),
    ('liquid', 'Liquid'),
    ('lisp', 'Lisp'),
    ('livescript', 'LiveScript'),
    ('lolcode', 'LOLCODE'),
    ('lua', 'Lua'),
    ('makefile', 'Makefile'),
    ('markdown', 'Markdown'),
    ('markup', 'Markup'),
    ('markup-templating', 'Markup templating'),
    ('matlab', 'MATLAB'),
    ('mel', 'MEL'),
    ('mizar', 'Mizar'),
    ('monkey', 'Monkey'),
    ('n4js', 'N4JS'),
    ('nasm', 'NASM'),
    ('nginx', 'nginx'),
    ('nim', 'Nim'),
    ('nix', 'Nix'),
    ('nsis', 'NSIS'),
    ('objectivec', 'Objective-C'),
    ('ocaml', 'OCaml'),
    ('opencl', 'OpenCL'),
    ('oz', 'Oz'),
    ('parigp', 'PARI/GP'),
    ('parser', 'Parser'),
    ('pascal', 'Pascal'),
    ('perl', 'Perl'),
    ('php', 'PHP'),
    ('php-extras', 'PHP Extras'),
    ('plsql', 'PL/SQL'),
    ('powershell', 'PowerShell'),
    ('processing', 'Processing'),
    ('prolog', 'Prolog'),
    ('properties', '.properties'),
    ('protobuf', 'Protocol Buffers'),
    ('pug', 'Pug'),
    ('puppet', 'Puppet'),
    ('pure', 'Pure'),
    ('python', 'Python'),
    ('q', 'Q (kdb+ database)'),
    ('qore', 'Qore'),
    ('r', 'R'),
    ('jsx', 'React JSX'),
    ('tsx', 'React TSX'),
    ('renpy', 'Ren\'py'),
    ('reason', 'Reason'),
    ('rest', 'reST (reStructuredText)'),
    ('rip', 'Rip'),
    ('roboconf', 'Roboconf'),
    ('ruby', 'Ruby'),
    ('rust', 'Rust'),
    ('sas', 'SAS'),
    ('sass', 'Sass (Sass)'),
    ('scss', 'Sass (Scss)'),
    ('scala', 'Scala'),
    ('scheme', 'Scheme'),
    ('smalltalk', 'Smalltalk'),
    ('smarty', 'Smarty'),
    ('sql', 'SQL'),
    ('soy', 'Soy (Closure Template)'),
    ('stylus', 'Stylus'),
    ('swift', 'Swift'),
    ('tcl', 'Tcl'),
    ('textile', 'Textile'),
    ('tt2', 'Template Toolkit 2'),
    ('twig', 'Twig'),
    ('typescript', 'TypeScript'),
    ('vbnet', 'VB.Net'),
    ('velocity', 'Velocity'),
    ('verilog', 'Verilog'),
    ('vhdl', 'VHDL'),
    ('vim', 'vim'),
    ('visual-basic', 'Visual Basic'),
    ('wasm', 'WebAssembly'),
    ('wiki', 'Wiki markup'),
    ('xojo', 'Xojo (REALbasic)'),
    ('yaml', 'YAML'),
    ('xeora', 'Xeora'),

Change Log

  • Upgrade to PrismJS 1.14.0
  • Allow passing a language code as an attribute, only allowing the single language to be used.
  • Fix conflict in CSS between tag class for Wagtail and markup syntax types.

  • Upgrade to PrismJS 1.11.0
    • Changed version numbers to match the included PrismJS release
  • Patch to add support for natively included PrismJS languages ['html', 'mathml', 'svg', 'xml']


  • Support for Wagtail 2.0


  • Upgrade to PrismJS 1.9.0, which includes a patch we made to the 'coy' theme we use as a default.


  • Support for PrismJS themes


  • Bug fixes for some front-end issues. Update documentation.

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