# react-lock-screen

> Simple lock-screen for idle React applications

Display a custom lock-screen when your React applications becomes idle

## Demo
See it in action [here](https://codesandbox.io/s/react-lock-screen-demo-q2zx3)

## Prerequisites

- [React 16.8+](https://reactjs.org/blog/2019/02/06/react-v16.8.0.html)

## Installation

```bash
$ npm install react-lock-screen
```

## Usage

```jsx
import LockScreen from 'react-lock-screen'
...

function App() {

  const getLockScreenUi = (setLock) => {
    return <button onClick={() => setLock(false)}>unlock</button>
  }

  return (
    <LockScreen
      timeout={2000}
      ui={getLockScreenUi}>
      <p>Lorem Ipsum is not simply</p>
    </LockScreen>
  )
```

## APIs (props)

### timeout

type: `number`

The number of idle (milliseconds) time before screen is locked

### ui

type: `function`

A function that returns some jsx representing the UI to show when screen is locked. Recieves a function argument that can be used to toggle lock-screen state.

```jsx
<LockScreen ui={setLock => <button onClick={setLock(false)}>unlock</button>}>
  ...
</LockScreen>
```

### className

type: `string`

Class name to be applied to the blurred div when screen is locked. This is useful if you want to change the blur amount (or other styles) of the div.


```css
/* default styles */
.react-lock-screen {
  filter: blur(4px);
  userselect: none;
  height: 100vh;
  overflow: hidden;
}
```
override default styles using className prop
```jsx
<LockScreen className="lock">
...
```

```css
.react-lock-screen.lock {
  /* your custom styles here */
}
```

### onScreenLocked

type: `function`

Callback function that gets called when screen is locked

### onScreenUnlocked

type: `function`

Callback function that gets called when screen is unlocked

## Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

## License

[react-lock-screen](https://github.com/codeshifu/react-lock-screen) is licensed under [MIT](https://github.com/codeshifu/react-lock-screen/blob/master/license)