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Informations about the package headless
REMIND - Headless Extension
This extension provides:
- base content elements
- additional fields for pages and tt_content (e.g. items)
- extended flex form processor
- image processing middleware
- base configuration for form_framework
- a default backend layout
Installation
Use comoser to install the extension using composer install remind/headless
. Import typoscript in your provider extension.
Add the following to your site config:
Dependencies
Required dependencies are headless and content-defender. The latter is used in the default backend layout.
Backend Layouts
Default
The default layout consists of 1 column with 3 rows. Besides the main content (colPos = 0) there is also one column for content above the breadcrumbs (colPos = 1) and the footer (colPos = 10).
The content defender extension is used to only allow exactly one footer_content content element in the footer column. The footer_content content element can not be used in the other columns.
TCA
tt_content
tx_headless_item
Field of type inline. Basically tx_headless_item
acts like tt_content without a colPos
. Used for accordion
and tabs
. See one of these definition on how to use items and override the showitem definition. Nested items are possible as well, however flexform only work for top level items for now.
To add a flexform to an item add the following configuration to TCA/Overrides/tx_headless_item.php
:
The flexform
column has to be added to showitem
of the respective tt_content type as well.
For example, to add a flexform to the accordion type the following must contain the flexform column:
To ouput the flexform data in the frontend, the flexform field has to be added to the content elements typoscript.
Example for modified Accordion.typoscript
:
header_layout
Values for text, H1-H6 and hidden.
tx_headless_background_color
A background color for all content elements. Only option none
exists per default. Add options per content element by using columnOverrides
:
tx_headless_background_full_width
Only visible if tx_headless_background_color
is other than none
. Used to extend the background color to full width instead of the content container only.
tx_headless_space_before_inside
Addition to space_before
. Space before the content element, but inside the background color. Only available if tx_headless_background_color
is other than none.
tx_headless_space_after_inside
Similar to space_before_inside
.
pages
tx_headless_overview_label
An tx_headless_overview_label
field is added to the page TCA. The field should be used to customize the label for the overview pages.
Crop Variants
ImageProcessingMiddleware
accepts a breakpoint as a query parameter and uses a crop variant by that name if available. Appropriate crop variants have to be created for content elements.
Example for crop variants for breakpoints sm, md and lg for textpic
:
Example for crop variants for breakpoints sm, md and lg for accordion
items:
Content Elements
accordion
Uses tx_headless_item
, items consist of text (header, subheader, bodytext, title), a flexform field and images.
footer_content
Basic definition without any actual content fields. Add a flexform in your provider extension to use footer_content
:
tabs
Uses tx_headless_item
, items consist of text (header, subheader, bodytext) only.
All versions of headless with dependencies
php Version ^8.2
typo3/cms-core Version ^12.4
friendsoftypo3/headless Version ^4.2