Alarms and status

Status Tile `<smart-status-tile>`

StatusTile displays one process value with its label, unit, state and trend direction, for status walls and plant overview screens.

Getting Started with React StatusTile Component

The Smart.Industrial React components need React 18 or later, because they render through react-dom/client. The steps use Vite with its react-ts template.

The complete demo in React is on the demo page, file by file.

1 Create a Vite + React + TypeScript app

npm create vite@latest my-smart-app -- --template react-ts

```
cd my-smart-app
```
then
```
npm install
```

2 Install Smart.Industrial

npm install smart-industrial

3 Import styles and render the component

The sample replaces the content of src/App.tsx. It imports the stylesheets and the StatusTile component, sets the properties the demo sets and handles the stateChange event. It compiles under the template's strict TypeScript settings.

import 'smart-industrial/source/styles/smart.default.css';
import 'smart-industrial/source/styles/smart.industrial-elements.css';
import 'smart-industrial/source/styles/smart.industrial.css';
import { StatusTile } from 'smart-industrial/react/statustile';

function App() {
  // Raised when the state changes.
  const handleStateChange = (event: CustomEvent) => {
    const { state, oldState } = event.detail;
    console.log('stateChange', state, oldState);
  };

  return (
    <StatusTile
      theme="industrial"
      label="First pass yield"
      value={96.2}
      unit="%"
      state="ok"
      trend="up"
      trendValue={1.4}
      trendPolarity="higherIsBetter"
      footnote="Rising is good"
      onStateChange={handleStateChange}
    />
  );
}

export default App;

The template's src/main.tsx renders App and needs no change.

Each component has an entry point of its own, and the sample imports from it. The entry point with all the components, smart-industrial/react, puts every component into the bundle, about 2.5 MB minified. Built with Vite, the Faceplate sample has 390 kB of JavaScript, React included, with smart-industrial/react/faceplate.

4 Run the dev server

npm run dev

Vite prints the URL of the application, usually http://localhost:5173/.

TypeScript Support

The types ship with smart-industrial. A type-only import of the component and its props uses import type, which the template's verbatimModuleSyntax requires:

import type { StatusTile, StatusTileProps } from 'smart-industrial/react/statustile';

Each on* callback receives a CustomEvent whose detail is typed for that event, so the editor lists its fields. A handler typed (event: CustomEvent) => void, as in the sample, accepts it as well.

The keyboard interaction, roles and announcements of the component are on its accessibility page; they are the same in React.