Customize a Varbase Single Directory Components (SDC) In a Custom Theme
The components folder contains various Single Directory Components (SDC). To enhance the default components, Projects are using the components provided by Varbase Components module.
To replace any component from the Varbase Components module, follow the example below:
Example:
Suppose we have a custom style for the Alert component on our site, which differs from the default style. Here are the steps to implement the custom style:
Copy the Varbase Component to the Custom theme
Copy the alert folder from Varbase Components to your project's theme folder:
Add replaces to the Copied Component
Edit the alert.component.yml
file in your PROJECT_THEME
folder.
Add the following line after name: Alert
in the YAML file:
The updated alert.component.yml
should look like this:
Add the Custom SCSS files to the Webpack Config for Components
Uncomment the following line in the PROJECT_THEME/webpack.config.components.js
file:
Note: As a custom theme, Developers and themers have the authority to modify any part of the "status-messages.html.twig"
template file, which is the default system template in Drupal.
You can also make changes to the SASS, TWIG, and JavaScript files in the components/molecules/alert
folder.
Compile SASS
to CSS
files for components
SASS
to CSS
files for componentsThese steps will allow you to incorporate your custom style for the Alert component, using the Varbase Components module as a base.
Change the SDC Component to Customize
Add JS file, or more JS files to dependencies
Add more SCSS/CSS files
Change the custom component twig template
Defining Schemas for SDC Component Metadata
Following with Draft 4 of JSON Schema, which is a declarative language that allows you to annotate and validate JSON documents.
The draft has been seamlessly integrated with YAML in SDC Components within the Drupal core. This integration now serves as the backbone for all front-end and web components, providing a unified and efficient system.
Required in modules
Optional in themes (file presence needed)
Add the Schema Metadata
In all SDC components in Varbase Components or custom myproject_components
module.
To follow with metadata.schema.json selected by Drupal Core team https://git.drupalcode.org/project/drupal/-/raw/HEAD/core/assets/schemas/v1/metadata.schema.json
The will read the schema file to understand the syntax for fixes and enable autocomplete.
Drafts of JSON Schema
Front End frameworks are using a selected draft to create their custom schema metadata for components.
http://json-schema.org/draft-01/schema#
http://json-schema.org/draft-02/schema#
http://json-schema.org/draft-03/schema#
http://json-schema.org/draft-04/schema#
( Used by Drupal core SDC module)
http://json-schema.org/draft-05/schema#
http://json-schema.org/draft-06/schema#
http://json-schema.org/draft-07/schema#
Storybook JSON Schema Addon to integrate with that
Options to custom
Clone the custom card component, which is targeted for a selected content type, and have the custom changes for with styles(
css
) and scripts(js
), or even with custom props and slots.Switch to use the
starterkit/recipes
for the provided Varbase Cards from Varbase Components directly from the display mode for an entity.Clone the Varbase Card component and customize it in a custom theme
Proof of Concept: Custom Varbase Blog Card Components
While Varbase Blog will retain the use of the standard Varbase Card Components, This is an proof of concept example with a selection of custom components.
Varbase Blog serves as an exemplary model for understanding how to effectively manage various elements such as Content types, View modes, Layout Libraries, Views, site section pages, categories, and tags using the comprehensive range of "assembled"
Varbase Components, modules, and "Starterkit/Recipes"
configs.
Offering an Example Avenue
Explore customizing card components for specific content types. Our present example revolves around the Varbase Blog content type.
You're welcome to download the components and tailor them according to your chosen view mode and content type's requirements.
Make the transition from the inline CSS class placement
method for UI patterns to using custom Card components. Additionally, enhance organization and readability by integrating Custom Cards as stories within Varbase Storybook.
Example: Use the General Cards/Teasers
view modes for your site, and if necessary, you can utilize or clone the Varbase Cards Starterkit/Recipe
.
Incorporate custom Card components when working with specific Content types like the Varbase Blog
This approach streamlines the development workflow, enabling smooth collaboration between Design, Storybook, Front-End development with SDC components and stories, and the mapping process in the theme. The Back-end team can also effortlessly integrate components into the site structure.
The Site builder gains the flexibility to associate SDC components with both UI Pattern and SDC Display, ensuring a cohesive and efficient implementation.
Field mapping with Components
Can be managed in number of approaches
Example first approach: Use the SDC Display module. Select a component for a field display from the UI, and map values to props and slots.
Example second approach: Create a card-text-body-field
component and use the component with the twig template in Vartheme BS5 suggestion for the field body.
( Building the list of components for fields can be now in projects or products ) Then later SDC Display can map them from the UI.
Example: Impressed Card as a View Mode for a Content Type
Example: Impressed Card with
style size
ofmedium
,card border
,Equal height
,Anchoring all
the card,media position
to thetop
, and passing an extra Bootstrap ~5.3.0utility classes
forlight background
andlarge shadow
over the used cardThe component files are in ( varbase-blog-card-impressed-medium.zip )
Which only has the following in
varbase-blog-card-impressed-medium.twig
file:
The equivalent in Storybook using the custom Varbase Impressed Card -medium
Which is the equivalent of using the default Impressed Card - medium - with Read more
story with the default standard Impressed Card in the storybook - but without the light background and no shadows.
More Info and FAQ about SDC
Read: Using Single Directory Components
https://www.drupal.org/docs/develop/theming-drupal/using-single-directory-components
Read: F.A.Q. (Frequently Asked Questions) about SDC
Read: Creating Your First Single Directory Component within Drupal
https://herchel.com/articles/creating-your-first-single-directory-component-within-drupal
Read: Single Directory Components in Drupal Core
https://www.lullabot.com/articles/getting-single-directory-components-drupal-core
Watch: Single Directory Components in Core: Pittsburgh 2023
SDC Examples
SDC Examples module
Component Libraries: Components Examples
Have a look at the code and README.md
for list of props
, slots
, and example how to use.
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