37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
|
// @flow
|
||
|
|
|
||
|
|
import { BackHandler } from 'react-native';
|
||
|
|
|
||
|
|
import { APP_WILL_MOUNT, APP_WILL_UNMOUNT } from '../../base/app';
|
||
|
|
import { MiddlewareRegistry } from '../../base/redux';
|
||
|
|
|
||
|
|
import BackButtonRegistry from './BackButtonRegistry';
|
||
|
|
|
||
|
|
// Binding function to the proper instance, so then the event emitter won't replace the
|
||
|
|
// underlying instance.
|
||
|
|
BackButtonRegistry.onHardwareBackPress = BackButtonRegistry.onHardwareBackPress.bind(BackButtonRegistry);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Middleware that captures App lifetime actions and subscribes to application
|
||
|
|
* state changes. When the application state changes it will fire the action
|
||
|
|
* required to mute or unmute the local video in case the application goes to
|
||
|
|
* the background or comes back from it.
|
||
|
|
*
|
||
|
|
* @param {Store} store - The redux store.
|
||
|
|
* @returns {Function}
|
||
|
|
* @see {@link https://facebook.github.io/react-native/docs/appstate.html}
|
||
|
|
*/
|
||
|
|
MiddlewareRegistry.register(() => next => action => {
|
||
|
|
switch (action.type) {
|
||
|
|
case APP_WILL_MOUNT:
|
||
|
|
BackHandler.addEventListener('hardwareBackPress', BackButtonRegistry.onHardwareBackPress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case APP_WILL_UNMOUNT:
|
||
|
|
BackHandler.removeEventListener('hardwareBackPress', BackButtonRegistry.onHardwareBackPress);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return next(action);
|
||
|
|
});
|