@synergy-design-system/react

This package provides React.js wrappers for Synergy Web Components.

This package aims for an improved UX when used in React applications:

• Auto-completion
• Event handling

Getting started

1. Package installation

Run the following steps to install the required packages.

# Install the base library and required css files
npm install --save @synergy-design-system/react @synergy-design-system/tokens

# Optional: Install the styles utility package
npm install --save @synergy-design-system/styles

# Only if not already installed
npm install --save react react-dom

# Optional: if icons shall be used, install the assets package
npm install --save @synergy-design-system/assets

⚠️ Note we do not ship React in this package. You will have to install React by yourself first!

2. Add the desired theme to your application

The components will not display correctly without the needed theme. Please include either light or dark theme in your application, for example in a newly installed React application:

// main.tsx
import { StrictMode } from "react";
import { createRoot } from "react-dom/client";
import { App } from "./App";

// Add this line to enable the light theme for your application
import "@synergy-design-system/tokens/themes/light.css";
import "@synergy-design-system/components/index.css";

// Optional: Import the styles package
import "@synergy-design-system/styles/index.css";

createRoot(document.getElementById("root")!).render(
  <StrictMode>
    <App />
  </StrictMode>,
);

3. Importing and rendering components

You may now use the components by importing them from the @synergy-design-system/react package and rendering them in a React component.

import { SynButton } from "@synergy-design-system/react";

export const MyButton = () => <SynButton type="submit">Submit me</SynButton>;

4. Usage of the components

All information about which components exist as well as the available properties, events and usage of a component, can be found at components in our documentation. The documentation is written for no specific web framework but only vanilla html and javascript.

An example demo repository with the usage of the React wrapper components can be found here.

The naming of the components for React changes from kebab-case to PascalCase. syn-button becomes SynButton:

<!-- Webcomponents example -->
<syn-button> My Button </syn-button>

// React wrapper example
<SynButton> My Button </SynButton>

5. Usage of attributes

The attribute namings of the components are the same as in the documentation.

<!-- Webcomponents example -->
<syn-input
  label="Nickname"
  help-text="What would you like people to call you?"
  required
></syn-input>

// React wrapper example
<SynInput
  label="Nickname"
  help-text="What would you like people to call you?"
  required
/>

6. Usage of events

Custom events are named in the documentation as following: syn-change, syn-clear, ...

This library makes use of @lit/react to wrap the existing Synergy Web Components. All events will be automatically set up to work without the need to attach event listeners manually. Just use them with the default React onEVENT prefix, where EVENT is the camelCased name of the event:

syn-change-> onSynChange, syn-clear-> onSynClear, ...

import { SynButton } from "@synergy-design-system/react";

export const MyButton = () => (
  <SynButton
    onSynBlur={e => console.log("button blur event", e)}
    onSynFocus={e => console.log("button focus event", e)}
    onSynInvalid={e => console.log("button flagged as invalid", e)}
  >
    SynButton Example
  </SynButton>
);

If typescript is used, you can get the correct types for components and events from the @synergy-design-system/components package.

The components from the React wrapper and the types of the components package are called the same. Therefore there must be a renaming of e.g. the types.

An example for how these types can be used in case of event, is shown below:

import { SynInput } from "@synergy-design-system/react";
import type {
  SynInput as SynInputType,
  SynChangeEvent,
} from "@synergy-design-system/components";

export const MyComponent = () => (
  <SynInput
    label="Surname"
    onSynChange={(e: SynChangeEvent) => {
      const input = e.target as SynInputType;
      // Now we get access to all properties, methods etc. of the syn-input
      const surname = input.value;
      doSomething(surname);
    }}
  />
);

7. Usage of methods

Components can have methods (like focus, click, stepUp, etc. ), which can trigger an action, if they are called.

An example for calling such a method in a React component is shown here:

import { SynButton, SynInput } from "@synergy-design-system/react";
import type { SynInput as SynInputType } from "@synergy-design-system/components";
import { type FC, useRef } from "react";

export const Home: FC = () => {
  const count = useRef<SynInputType>(null);

  return (
    <>
      <SynInput ref={count} label="My count" type="number" value="5" />
      <SynButton
        onClick={() => {
          // Increment the count via calling the method
          count.current?.stepUp();
        }}
      >
        Increment
      </SynButton>
    </>
  );
};

Development

To create a new version of this package, proceed in the following way:

1. Check out the Synergy Design System Repository.
2. Run pnpm i -r to install all dependencies.
3. Build the @synergy-design-system/components package (or run pnpm build in the project root to build everything).
4. Move to to packages/_private/react-demo and use pnpm start to spin up a local vite project using react and typescript to validate the build.

⚠️ The build process will always try to sync this packages package.json.version field with the latest version from @synergy-design-system/components! Therefore, it is best to not alter the version string