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https://github.com/elwayman02/ember-user-activity

Ember Addon for tracking user activity & idling
https://github.com/elwayman02/ember-user-activity

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Ember Addon for tracking user activity & idling

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README 

        
# ![Ember User Activity](docs/hero-logo.png)



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This addon provides services for detecting user activity & idling across the entire application.



Check out the [Demo](https://ember-user-activity.jhawk.co/)!



We adhere to the [Ember Community Guidelines](https://emberjs.com/guidelines/) for our Code of Conduct.



## Compatibility



* Ember.js v4.8 or above

* Ember CLI v4.8 or above

* Node.js v18 or above



## Installation



```bash

ember install ember-user-activity

```



## Usage



### User Activity Service



This service fires events from global window listeners.

These listeners trigger on capture, meaning they are not affected by event cancellation.



These `window` events are enabled by default:



* `keydown` - Fires when a key is pressed

* `mousedown` - Fires when a mouse is clicked

* `scroll` - Fires when the user scrolls

* `touchstart` - Fires when a touch point is placed on the touch surface [Mobile-Friendly]

* `storage` - Fires when any activity event is triggered on another tab of the same website. This avoids problems when a user opens up serveral tabs to the same application.

* ~~`mousemove` - Fires when the user moves the mouse~~ [Removed as of v0.2.0](https://github.com/elwayman02/ember-user-activity/issues/16)



A custom event, `userActive` is fired for ALL enabled events.



To catch these events, simply inject the service and subscribe to the events you care about:



```javascript

import Component from '@glimmer/component';

import { service } from '@ember/service';



// any file where services can be injected

export default class MyComponent extends Component {

  @service userActivity;



  setupListeners() {

    this.userActivity.on('userActive', this, this.activeHandler);

  }



  activeHandler(event) {

    // do stuff

  }

}

```



Each event handler will receive the standard DOM `event` object

(ex: [mousemove](https://developer.mozilla.org/en-US/docs/Web/Events/mousemove)).



Unsubscribe from any event by calling `off`:



```javascript

this.userActivity.off('userActive', this, this.activeHandler);

```



Note: While our event dispatch system mirrors Ember.Evented, it does not include the `one` method. 

Only `on`, `off`, and `trigger` have been implemented. If you feel `one` is necessary for you, 

we're happy to accept PRs!



#### Event Configuration



If you would like to listen to a different set of events, extend the service in your app:



```javascript

// app/services/user-activity.js

import UserActivityService from 'ember-user-activity/services/user-activity';



export default class UserActivity extends UserActivityService {

  defaultEvents = ['keypress', 'mouseenter', 'mousemove'];

}

```



Additionally, you can enable/disable events after the service has been initialized.



```javascript

this.userActivity.enableEvent('keyup');

this.userActivity.disableEvent('mousedown');

```



Event names must be from the [DOM Event](https://developer.mozilla.org/en-US/docs/Web/Events) list.

Custom events are not currently supported. If you enable an event name

that was not set up by default, a new listener will be created automatically.



You can find out if an event is currently enabled:



```javascript

this.userActivity.isEnabled('foo'); // false

this.userActivity.isEnabled('keydown'); // true

```



#### Performance Configuration



Each individual event is throttled by 100ms for performance reasons,

to avoid clogging apps with a firehose of activity events. The length of

the throttling can be configured by setting `EVENT_THROTTLE` on the activity service.



```javascript

// app/services/user-activity.js

import UserActivityService from 'ember-user-activity/services/user-activity';



export default class UserActivity extends UserActivityService {

  EVENT_THROTTLE = 200; // 200 ms

}



```



Setting `EVENT_THROTTLE` to 0 will enable the full firehose of events.

This may cause performance issues in your application if non-trivial

amounts of code are being executed for each event being fired.



### User Idle Service



This service tracks user activity to decide when a user has gone idle by

not interacting with the page for a set amount of time.



```javascript

import Component from '@glimmer/component';

import { service } from '@ember/service';

import { readOnly } from '@ember/object/computed'



export default class MyComponent extends Component {

  @service userIdle;



  @readOnly('userIdle.isIdle')

  isIdle;

}

```



The default timeout is set for 10 minutes but can be overridden by extending the service:



```javascript

// app/services/user-idle.js

import UserIdleService from 'ember-user-activity/services/user-idle';



export default class UserIdle extends UserIdleService {

  IDLE_TIMEOUT = 300000 // 5 minutes

}

```



By default, the idle service listens to the `userActive` event, but it can be

configured to listen to a custom set of events from the `user-activity` service:



```javascript

// app/services/user-idle.js

import UserIdleService from 'ember-user-activity/services/user-idle';



export default class UserIdle extends UserIdleService {

  activeEvents = ['mousedown', 'keydown'];

}

```



Note that the `userActive` event is a superset of all events fired from `user-activity`,

so in most cases you won't need to change this.



The idle service has a `idleChanged` event when `isIdle` gets changed.



```javascript

import Component from '@glimmer/component';

import { service } from '@ember/service';



export default class MyComponent extends Component {

  @service userIdle;



  constructor() {

    this.userIdle.on('idleChanged', (isIdle) => {

      // isIdle is true if idle. False otherwise.

    });

  }

}

```



### Scroll Activity Service



This service tracks scrolling within the application by periodically checking

(via [requestAnimationFrame](https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame))

for changes in scroll position for the various scrollable elements in the page. By default, it only

checks `document`, but the [Scroll Activity Mixin](#scroll-activity-mixin) provides an easy

way to register your components as well. The [User Activity Service](#user-activity-service) subscribes to these scrolling events by default, so you do not need to do anything to use this service for global scroll events if you are already injecting the user-activity service.



Any elements can be subscribed to this service:



```javascript

this.scrollActivity.subscribe(this, element);

```



`subscribe` requires at least two parameters:



* `target` - Usually `this`, target just needs to be a unique identifier/object

that can be used to unsubscribe from the service

* `element` - The scrollable element (can be a DOM or jQuery element - jQuery not required!)



Two optional parameters may follow:



* `callback` - A callback to execute when scrolling has been detected in the element

* `highPriority` - A boolean (default `true`) specifying this subscriber should eagerly check

  scroll positions on each animation frame. When `false`, it will instead

  use an approximation of idle checking on the UI thread to avoid performing

  measurements at sensitive times for other work (like rendering).



Conversely, elements can also be unsubscribed:



```javascript

this.scrollActivity.unsubscribe(this);

```



`unsubscribe` only requires the `target` parameter that was initially used to `subscribe`.



### Cleanup



Please remember that subscribing to events can cause memory leaks if they are not properly cleaned up.

Make sure to remove any listeners before destroying their parent objects.



```javascript

// app/components/foo-bar.js

export default class FooBar extends Component {

  willDestroy() {

    this.userActivity.off('keydown', this, this.keydownHandler);

  }

}

```



### Using in an Addon



Building your own addon to extend Ember User Activity? No problem!



```javascript

// my-addon/addon/services/user-idle.js

import UserIdleService from 'ember-user-activity/services/user-idle';



export default class UserIdle extends UserIdleService {

  IDLE_TIMEOUT = 3000; // 3 minutes

}

```



## Contributing



See the [Contributing](CONTRIBUTING.md) guide for details.



## License



This project is licensed under the [MIT License](LICENSE.md).