@sb1/ffe-core

@sb1/ffe-core

ffe-core contains styling common to all components in FFE - typography, colors, etc. It also includes JavaScript exports for color and breakpoint variables.

Install

npm install --save @sb1/ffe-core
npm install --save-dev less less-plugin-npm-import    # less-plugin is optional, but can simplify imports

Usage

Full documentation on usage is available at:

https://design.sparebank1.no/komponenter/typografi/ https://design.sparebank1.no/profil/farger/ https://design.sparebank1.no/profil/spacing/

/* Your project's main .less import file */
@import 'npm://@sb1/ffe-core/less/ffe'; // with less-plugin
@import '~@sb1/ffe-core/less/ffe'; // with webpack and less-loader
@import '../path/to/node_modules/@sb1/ffe-core/less/ffe'; // direct reference

Importing specific parts

In some cases, you may not require everything in this package. You can import the parts you require if you want:

// Variables
@import '~@sb1/ffe-core/less/colors';
@import '~@sb1/ffe-core/less/breakpoints';
@import '~@sb1/ffe-core/less/dimensions';
@import '~@sb1/ffe-core/less/motion';
@import '~@sb1/ffe-core/less/spacing';

// Basic typography
@import '~@sb1/ffe-core/less/typography';
// Accessibility helpers
@import '~@sb1/ffe-core/less/accessibility';

Theming with CSS custom properties

Theming of components is supported through a set of custom properties, defined in a less/theme.less file in every styling package. The properties in ffe-core constitute a base theme, which is in turn used as default values in other packages. You may override the properties in each individual package in order to customize a single component, or override the properties defined in ffe-core to customize a sitewide theme.

If your project uses the core styling, you're probably good to go. If not, make sure to import the core properties in theme.less from ffe-core:

@import '~@sb1/ffe-core/less/theme';

Design tokens

This package provides a set of less files containing variables for colors and other reusable constants. These files are:

• less/breakpoints.less
• less/colors.less
• less/dimensions.less
• less/motion.less
• less/spacing.less

The less variables specified in this package are also available as named JavaScript imports. This can be useful for consumers that use CSS-in-JS, or that need access to these values in their JavaScript for other reasons. They are named the same as their LESS siblings, but are camelCased, and do not have the @ffe- prefix.

This is how you import them:

import {
    fargeHvit,
    fargeFjell30,
    breakpointMd,
    spacingXl,
} from '@sb1/ffe-core';

Development

To start a local development server, run the following from the designsystem root folder:

npm install
npm run build
npm start

A local instance of component-overview with live reloading will run at http://localhost:1234/.

Example implementations using the latest versions of all components are also available at https://sparebank1.github.io/designsystem.