Vermilion Design + Digital Web Components

This repository is a working library of web components built on the Polymer / LitElement platforms.

Demo and list of components and usage:

Demo and Component Documentation

Usage

npm i @vermilion/{package-name-not-published-yet}

In your Javascript:

import { ComponentName } from '@vermilion/{package-name-not-published-yet}';

  ... 

customElements.define('component-name', ComponentName);
  /** 
    * your component name must include a hyphen so the HTML parser in your browser knows this is a custom element.
  **/

In your HTML:

<component-name
  other="properties"
  passed="like this"
>
  Slot Data passed here
</component-name>

Contributing | Development

1. Clone this repo
2. $ cd vermilion-web-components
3. $ npm install

Build Tasks:

To run a development build and watch the Javascript files only:

$ npm start

To develop for the browser at localhost:1234 on the file at /demo/index.html

$ npm run dev

To build only the Javascript files for production use:

$ npm run build

To build the documentation and demo HTML files for production

$ npm run build-demo

To build everything for production:

$ npm run package

Development

1. Take a look at /template.js for a boilerplate component class. This can serve as a scaffolding to how we are writing these components.
2. All new web components must be single, top-level files inside the src folder.
3. Prefix your example components with "vm-" in the examples.
4. When your component is ready for the browser, import it to /src/index.js/ and add it to the exported object as a named export.
5. run one of the build taks above. Most likely npm run dev.

Publishing

1. When you're ready to publish a component, first make sure that you've done everything you can to make it flexible and accessible (including tabindex and keyboard events);

2. Add an example to the /demo/index.html file with the following template:

  <section class="component" id="{{component-name}}">
    <h2>{{component-name}}</h2>

    <div class="container">

      <vm-{{component-name}}></vm-{{component-name}}>

      <h3>Usage:</h3>
        <pre>
          HTML:  
            <code class="language-html">
              <!--  your example markup here. -->
            </code>

          JavaScript:
            <code class="language-javascript">
              import { {{ComponentName}} } from './dist/index';
                ...
              customElements.define('vm-{{component-name}}', {{ComponentName}});
            </code>
        </pre>
    </div>
  </section>

1. $ npm run build
2. Submit a Pull Request for all new Components.