wagtail-f-richtext 1.1.0

An alternative Wagtail richtext filter that applies classes or styles to rich text HTML content.

Wagtail F Richtext

An alternative Wagtail richtext filter that can be configured in your apps settings.

It can parse the content in a RichText field in the same way the Wagtail richtext filter works and add classes or inline styles to the HTML.

Once the package is added to your Wagtail site, add one or two pieces of configuration to your settings then use the f_richtext template tag where you want the css classes or inline styles added to the HTML content.

It's especially useful if you are including a CSS framework such as:

• Bulma
• CodyHouse
• Tachyons
• Tailwind
• other frameworks are available :)

Installation

Install the package into your python environment.

pip install wagtail-f-richtext

Add the package to your INSTALLED_APS

"wagtail_f_richtext"

Any css framework styles will need to be installed before you will see any style changes for richtext content. If you are using only the inline styles you should see the effect of them applied when a page is viewed.

Using the f_richtext filter

The f_richtext filter can be used in your templates in the same way as the Wagtail core provided richtext filter.

First add the filter to your template.

{% load wagtail_f_richtext %}

Then use it in your template.

with a RichText field

• {{ page.body|f_richtext:"framework" }} will add classes to the HTML tags
• {{ page.body|f_richtext:"inline_styles" }} will add inline styles to the HTML tags

with a RichText block

• {{ value|f_richtext:"framework" }} will add classes to the HTML tags
• {{ value|f_richtext:"inline_styles" }} will add inline styles to the HTML tags

You can use it without a parameter {{ page.body|f_richtext }} and it will work just like the Wagtail core provided filter (not required)

Sample framework rendered

<div class="text-component">
    <p data-block-key="92eli">A paragraph <b class="font-bold">Vulputate Vestibulum</b> <i class="font-italic">Commodo</i></p>
    <h2 class="heading-2" data-block-key="fkden">Heading 2</h2>
    <ul class="list list--ul">
        <li data-block-key="fe5cv">UL List Item 1</li>
        <li data-block-key="6ort3">UL List Item 2</li>
    </ul>
    <ol class="list list--ol">
        <li data-block-key="d5s3r">OL List Item 1</li>
        <li data-block-key="5l47j">OL List Item 2</li>
    </ol>
    <img alt="IMG_4511" class="f-richtext-image f-richtext-image--right" height="375" src="/media/images/IMG_4511.width-500.jpg" width="500">
    <div style="clear: both;"></div>
</div>

Sample inline_styles rendered

<div style="overflow:hidden;">
    <p data-block-key="92eli" style="margin-bottom: 1em;">A paragraph <b style="font-weight: bold;">Vulputate Vestibulum</b> <i style="font-style: italic;">Commodo</i></p>
    <h2 data-block-key="fkden" style="margin-bottom: 1em;">Heading 2</h2>
    <ul style="float: none; clear: both; list-style: disc; margin-left: 2em; margin-bottom: 1em;">
        <li data-block-key="fe5cv">UL List Item 1</li>
        <li data-block-key="6ort3">UL List Item 2</li>
    </ul>
    <ol style="float: none; clear: both; list-style: decimal; margin-left: 2em; margin-bottom: 1em;">
        <li data-block-key="d5s3r">OL List Item 1</li>
        <li data-block-key="5l47j">OL List Item 2</li>
    </ol>
    <img alt="IMG_4511" class="richtext-image right" height="375" src="/media/images/IMG_4511.width-500.jpg" style="float: right; margin-left: 1rem; margin-right: 0; margin-bottom: 1rem; height: auto;" width="500">
    <div style="clear: both;"></div>
</div>

Configuration

You need to add one or both of these settings to your apps settings.

• F_RICHTEXT_FRAMEWORK_CONFIG
• F_RICHTEXT_INLINE_CONFIG

Example for adding classes to HTML tags

F_RICHTEXT_FRAMEWORK_CONFIG = {
    # target html tags
    "classes": {
        "h1": "heading-1",
        "h2": "heading-2",
        "ul": "list list--ul",
        "ol": "list list--ol",
        "a": "color-contrast-higher",
        "b": "font-bold",
        "i": "font-italic",
    },
    # wrap the richtext content with a class
    "wrapper_classes": [
        "text-component",
    ],
    # swap the richtext image alignment classes
    "alignment_classes": {
        "richtext-image left": "f-richtext-image f-richtext-image--left",
        "richtext-image right": "f-richtext-image f-richtext-image--right",
        "richtext-image full-width": "margin: 1em 0; width: 100%; height: auto;",
    },
    # remove any empty HTML tags (blank lines in the richtext editor)
    "remove_empty_tags": [
        "p",
    ],
    # add a clearfix to the end of the content
    "append_clearfix": True,
}

Example for adding inline styles

F_RICHTEXT_INLINE_CONFIG = {
    # target html tags
     "styles": {
        "h1": "margin-bottom: 1em;",
        "h2": "margin-bottom: 1em;",
        "h3": "margin-bottom: 1em;",
        "h4": "margin-bottom: 1em;",
        "h5": "margin-bottom: 1em;",
        "h6": "margin-bottom: 1em;",
        "p": "margin-bottom: 1em;",
        "ul": "float: none; clear: both; list-style: disc; margin-left: 2em; margin-bottom: 1em;",
        "ol": "float: none; clear: both; list-style: decimal; margin-left: 2em; margin-bottom: 1em;",
        "code": "font-family: monospace; background-color: #f5f5f5; padding: 0.25rem 0.5rem;",
        "sub": "vertical-align: sub; font-size: smaller;",
        "sup": "vertical-align: super; font-size: smaller;",
        "div": "float: none; clear: both;",
        "iframe": "max-width: 100%; width: 720px; height: 400px; margin-top: 1em; margin-bottom: 1em;",
        "b": "font-weight: bold;",
        "i": "font-style: italic;",
    },
    # wrap the richtext content with a style
    "wrapper_styles": [
        "overflow:hidden;",
    ],
    # swap the richtext image alignment classes for an inline style
    "alignment_styles": {
        "richtext-image left": "float: left; margin-right: 1rem; margin-left: 0; margin-bottom: 1rem; height: auto;",
        "richtext-image right": "float: right; margin-left: 1rem; margin-right: 0; margin-bottom: 1rem; height: auto;",
        "richtext-image full-width": "margin: 1em 0; width: 100%; height: auto;",
    },
    # remove any empty HTML tags (blank lines in the richtext editor)
    "remove_empty_tags": [
        "p",
    ],
    # add a clearfix to the end of the content
    "append_clearfix": True,
}

Optional usage

Use your own parser class

The parser class can be extended to add your own parsing requirements.

Create your own class that inherits from fRichTextParser and add the following to your apps settings.

F_RICHTEXT_PARSER_CLASS="the.dotted.path.to.your.own.Class"

Use your own runner function

The order of the parsing and loading of your configuration is done in the runner method that is called by the f_richtext filter.

Create your own runner function in a suitable place and add the following settings to your app.

F_RICHTEXT_PARSER_RUNNER="the.dotted.path.to.your.own.function"

Contributing

The test app can be run to develop your contribution.

1. Fork the repo and clone it to your computer.
2. Change to the folder where you cloned it to.

Create a virtual environment and install the dependencies:

python3 -m venv venv
source venv/bin/activate
pip install -e ".[development,testing]"

# run the migrations, add an admin account and start the app
python manage.py migrate
python manage.py createsuperuser
python manage.py runserver

Then you can view the app at http://localhost:8000 and login to the admin at http://localhost:8000/admin

Run the tests:

python manage.py test

You can use shortcuts in the Makefile to run the above commands.

make setup

will run all the above initial commands and creates a superuser with login credentials Username: admin Password: admin

Supports

• Wagtail 4.1, 4.2, 5.0, 5.1. 5.2, 6.0
• Django 3.2, 4.0, 4.1, 4.2
• Python 3.8, 3.9, 3.10, 3.11, 3.12