Highlight block

This add-on provides a block that features a big image picked from the images on the site on top and a kicker, title, and description editable inline. It allows also to set colors on the background of the text area. It features seven customizable colors by default. See the block in action: www.dlr.de.

Compatibility

| volto-highlight-block version | Volto version | VLT version |-------------|---------------| | 3.x.x | >= Volto 17.0.0 | | 4.x.x | >= Volto 17.18.0 or >=Volto 18.0.0-alpha.36 | | 5.x.x | >= Volto 18.0.0 | >= VLT 8.x

Customizable colors

The Highlight block lets you set a background color on the description (text) area, and ships with seven color palettes by default.

Each palette is an object with an internal name, a label, and a style object that sets two CSS custom properties: --descriptionColor (the background) and --descriptionColor-foreground (the text/foreground color). These are applied to the description area when the palette is selected.

const HIGHLIGHT_COLORS = [
  {
    name: 'highlight-custom-color-1',
    label: 'Grey',
    style: {
      '--descriptionColor': '#ECEBEB',
      '--descriptionColor-foreground': '#000',
    },
  },
  {
    name: 'highlight-custom-color-2',
    label: 'Teal',
    style: {
      '--descriptionColor': '#306F7E',
      '--descriptionColor-foreground': '#fff',
    },
  },
  // ...
];

Override or add your own palettes via the block's config:

config.blocks.blocksConfig.highlight.descriptionColors = HIGHLIGHT_COLORS;

Upgrading from 4.x to 5.x

Version 5 changes how the description colors are defined and rendered. The selected color is still stored as the palette name (e.g. highlight-custom-color-1), so existing content keeps its selection, but if you customized the colors or the styling, note the following:

• Palettes now carry their own style. Each entry in descriptionColors must include a style object setting --descriptionColor (background) and --descriptionColor-foreground (text). The previous { name, label } shape is no longer enough.
• The --highlight-custom-color-N / --highlight-custom-text-color-N CSS custom properties are gone. They are no longer read; remove any CSS that set them and move those values into each palette's style instead.
• The volto-light-theme color fallback was removed. Colors now come solely from the palette style.
• The default palette changed (e.g. the first color is now Grey instead of Medium Blue), so default content will render with different colors.

Version 5 also requires Volto 19 or later and adds an inline-editable kicker field above the title.

Screenshots

Installation

To install your project, you must choose the method appropriate to your version of Volto.

Volto 17 and earlier

Create a new Volto project (you can skip this step if you already have one):

npm install -g yo @plone/generator-volto
yo @plone/volto my-volto-project --addon @kitconcept/volto-highlight-block
cd my-volto-project

Add @kitconcept/volto-highlight-block to your package.json:

"addons": [
    "@kitconcept/volto-highlight-block"
],

"dependencies": {
    "@kitconcept/volto-highlight-block": "*"
}

Download and install the new add-on by running:

yarn install

Start volto with:

yarn start

Volto 18 and later

Add @kitconcept/volto-highlight-block to your package.json:

"dependencies": {
    "@kitconcept/volto-highlight-block": "*"
}

Add @kitconcept/volto-highlight-block to your volto.config.js:

const addons = ['@kitconcept/volto-highlight-block'];

If this package provides a Volto theme, and you want to activate it, then add the following to your volto.config.js:

const theme = '@kitconcept/volto-highlight-block';

Test installation

Visit http://localhost:3000/ in a browser, login, and check the awesome new features.

Development

The development of this add-on is done in isolation using a new approach using pnpm workspaces and latest mrs-developer and other Volto core improvements. For this reason, it only works with pnpm and Volto 18 or later.

Pre-requisites

• Node.js
• Make
• Docker

Make convenience commands

Run make help to list the available commands.

help                             Show this help
install                          Installs the add-on in a development environment
start                            Starts Volto, allowing reloading of the add-on during development
build                            Build a production bundle for distribution of the project with the add-on
i18n                             Sync i18n
ci-i18n                          Check if i18n is not synced
format                           Format codebase
lint                             Lint, or catch and remove problems, in code base
release                          Release the add-on on npmjs.org
release-dry-run                  Dry-run the release of the add-on on npmjs.org
test                             Run unit tests
ci-test                          Run unit tests in CI
backend-docker-start             Starts a Docker-based backend for development
storybook-start                  Start Storybook server on port 6006
storybook-build                  Build Storybook
acceptance-frontend-dev-start    Start acceptance frontend in development mode
acceptance-frontend-prod-start   Start acceptance frontend in production mode
acceptance-backend-start         Start backend acceptance server
ci-acceptance-backend-start      Start backend acceptance server in headless mode for CI
acceptance-test                  Start Cypress in interactive mode
ci-acceptance-test               Run cypress tests in headless mode for CI

Development environment set up

Install package requirements.

make install

Start developing

Start the backend.

make backend-docker-start

In a separate terminal session, start the frontend.

make start

Lint code

Run ESlint, Prettier, and Stylelint in analyze mode.

make lint

Format code

Run ESlint, Prettier, and Stylelint in fix mode.

make format

i18n

Extract the i18n messages to locales.

make i18n

Unit tests

Run unit tests.

make test

Run Cypress tests

Run each of these steps in separate terminal sessions.

In the first session, start the frontend in development mode.

make acceptance-frontend-dev-start

In the second session, start the backend acceptance server.

make acceptance-backend-start

In the third session, start the Cypress interactive test runner.

make acceptance-test

License

The project is licensed under the MIT license.

Credits

The development of this plugin has been kindly sponsored by the German Aerospace Center (DLR).