eccenca GUI elements

Collection of React elements based on Palantir BlueprintJS and IBM Carbon, used for eccenca Corporate Memory applications.

Usage

Installation

We provide a package via npmjs registry, install it by:

yarn add @eccenca/gui-elements

It could be also included as Git submodule to your projects and used via yarn link or yarn workspaces.

As long as IBM Carbon does not support TypeScript it is necessary to install @types/carbon-components-react as development dependency:

yarn add --dev @types/carbon-components-react

Inclusion

• To include SCSS styles for all basic components add @import "~@eccenca/gui-elements/index"; into your main SCSS file.
• To use extensions and special Corporate Memory components the include of @eccenca/gui-elements/extensions and @eccenca/gui-elements/cmem is necessary
• To include only the default configuration add @import "~@eccenca/gui-elements/src/configuration/variables; into your SCSS file.

Configuration

All configuration variables can be set before importing the full library or the default configuration but for the main changes you should need to change only a few parameters:

• Basic colors
  • $eccgui-color-primary: color for very important buttons and switches
  • $eccgui-color-primary-contrast: readable text color used on primary color areas
  • $eccgui-color-accent: color for most conformation buttons, links, etc
  • $eccgui-color-accent-contrast: readable text color used on accent color areas
  • $eccgui-color-applicationheader-text
  • $eccgui-color-applicationheader-background
  • $eccgui-color-workspace-text
  • $eccgui-color-workspace-background
• Basic sizes
  • $eccgui-size-typo-base: size including absolute unit, currently only px is supported
  • $eccgui-size-typo-base-lineheight: only ratio to font size, no unit!
  • $eccgui-size-type-levelratio: ratio without unit! used to calculate different text sizes based on $eccgui-size-typo-base
  • $eccgui-size-block-whitespace: white space between block level elements, currently only px is supported

Development

Branch management

We have 4 types of major branches representing the current state:

• main: contains the latest official release, only release/* branches will be merged into this branch
• develop: contains the latest state of development, feature/*, bugfix/* and next branches will be merged into develop
• next: development tree for an upcoming new major version, it will be merged into develop at some point, feature/*, bugfix/* and release/* branches will be merged into it
• legacy: development tree for the predecessor of the current major version, only bugfix/* and hotfix/* branches will be merged into it

We allow a few more prefixes for valid branchnames:

• feature/*: extend functionality, maintain dependencies
• fix/*, bugfix/*, hotfix/*: fix functionality
• release/*: branches to finalize releases, also used to publish release candidate packages
• change/*, temp/*

next and legacy only exist if necessary, otherwise we do not maintain those branches. Merges into main, develop, next and legacy are always managed by pull requests.

Running tests

Run the Jest tests with yarn test, for test coverage information run yarn test:coverage. You can check easily code for code errors by yarn compile (JS/Typescript) and yarn compile-scss (SASS).

If you run Jest tests in your app using our library you need to install @babel/plugin-transform-runtime as development dependeny and add it to your Babel plugins configuration.

Running Storybook

All story source files are kept in the respective components, extensions and cmem folders, using *.stories.tsx file name pattern. Run the storybook by

yarn install
yarn storybook

If you want to include Jest test results into the Storybook, run yarn test:generate-output before yarn storybook. If the stories and the tests share exactly the compononent name in the file names, e.g. Button.stories.tsx and Button., then tests are included automazically when the test output is available. In case the file names cannot match by pattern then test file names need to be configured in the stories:

Default.parameters = {
    jest: "MyTestFile.test.tsx",
};

Naming conventions

• Use a *Props suffix for component interfaces.
• Use a *Utils suffix for objects providing helper functions to compoents. Name should start with a lowercase letter.

Don't forget to export them. They need to be available via simple import from @eccenca/gui-elements.

Example: if you have your SimpleComponent then provide at least SimpleComponentProps, maybe simpleComponentUtils.

Use via yalc

If necessary you can use yalc to develop gui elements and your application side by side.

1. Install yalc globally via npm or yarn
2. Checkout @eccenca/gui-elements
3. Inside gui elements folder: yalc publish --push
4. Inside your applications folder: yalc link @eccenca/gui-elements
5. After updates to the gui elements: yarn build:all && yalc push

Process for pull requests and publishing releases

1. feature/* and bugfix/* branches are merged into develop via pull request
2. release/*branch is created from develop via GitHub interface, there will be created a pull request automatically
   • publish release candidates from this release branch by manual usage of a GitHub workflow
3. PR from release branch into main need to be approved
   • this will lead to a published package of the release

License

Apache License, Version 2.0, January 2004