Changed name from lastN to spotlights

app/lib/RoomClient.js

@@ -3,7 +3,7 @@ import * as mediasoupClient from 'mediasoup-client';
 import Logger from './Logger';
 import hark from 'hark';
 import ScreenShare from './ScreenShare';
-import LastN from './LastN';
+import Spotlights from './Spotlights';
 import { getSignalingUrl } from './urlFactory';
 import * as cookiesManager from './cookiesManager';
 import * as requestActions from './redux/requestActions';
@@ -21,7 +21,7 @@ const ROOM_OPTIONS =
 	requestTimeout   : requestTimeout,
 	transportOptions : transportOptions,
 	turnServers      : turnServers,
-	lastN            : 2
+	maxSpotlights    : 4
 };
 
 const VIDEO_CONSTRAINS =
@@ -72,11 +72,11 @@ export default class RoomClient
 		this._room = new mediasoupClient.Room(ROOM_OPTIONS);
 		this._room.roomId = roomId;
 
-		// LastN speakers
+		// Max spotlights
-		this._lastNSpeakers = ROOM_OPTIONS.lastN;
+		this._maxSpotlights = ROOM_OPTIONS.maxSpotlights;
 
-		// Array of lastN speakers
+		// Manager of spotlight
-		this._lastN = new LastN(this._lastNSpeakers, this._room);
+		this._spotlights = new Spotlights(this._maxSpotlights, this._room);
 
 		// Transport for sending.
 		this._sendTransport = null;
@@ -315,7 +315,7 @@ export default class RoomClient
 
 				lastN.splice(index, 1);
 
-				this._lastN.addSpeakerList(lastN);
+				this._spotlights.addSpeakerList(lastN);
 			}
 		}
 		catch (error)
@@ -340,16 +340,16 @@ export default class RoomClient
 		this._micProducer.resume();
 	}
 
-	// Updated consumers based on lastN
+	// Updated consumers based on spotlights
-	async updateSpeakers(speakers)
+	async updateSpotlights(spotlights)
 	{
-		logger.debug('updateSpeakers()');
+		logger.debug('updateSpotlights()');
 
 		try
 		{
 			for (const peer of this._room.peers)
 			{
-				if (speakers.indexOf(peer.name) > -1) // Resume video for speaker
+				if (spotlights.indexOf(peer.name) > -1) // Resume video for speaker
 				{
 					for (const consumer of peer.consumers)
 					{
@@ -373,7 +373,7 @@ export default class RoomClient
 		}
 		catch (error)
 		{
-			logger.error('updateSpeakers() failed: %o', error);
+			logger.error('updateSpotlights() failed: %o', error);
 		}
 	}
 
@@ -1036,7 +1036,7 @@ export default class RoomClient
 				stateActions.setRoomActiveSpeaker(peerName));
 
 			if (peerName && peerName !== this._peerName)
-				this._lastN.handleActiveSpeaker(peerName);
+				this._spotlights.handleActiveSpeaker(peerName);
 		});
 
 		this._signalingSocket.on('display-name-changed', (data) =>
@@ -1228,10 +1228,10 @@ export default class RoomClient
 
 			this.notify('You are in the room');
 
-			this._lastN.on('lastn-updated', (lastN) =>
+			this._spotlights.on('spotlights-updated', (spotlights) =>
 			{
-				this._dispatch(stateActions.setLastN(lastN));
+				this._dispatch(stateActions.setSpotlights(spotlights));
-				this.updateSpeakers(lastN);
+				this.updateSpotlights(spotlights);
 			});
 
 			const peers = this._room.peers;
@@ -1241,7 +1241,7 @@ export default class RoomClient
 				this._handlePeer(peer, { notify: false });
 			}
 
-			this._lastN.start();
+			this._spotlights.start();
 		}
 		catch (error)
 		{
@@ -1831,7 +1831,8 @@ export default class RoomClient
 		// Receive the consumer (if we can).
 		if (consumer.supported)
 		{
-			if (consumer.kind === 'video' && !this._lastN.peerInLastN(consumer.peer.name))
+			if (consumer.kind === 'video' &&
+				!this._spotlights.peerInSpotlights(consumer.peer.name))
 			{ // Start paused
 				logger.debug(
 					'consumer paused by default');

app/lib/Spotlights.js

@@ -0,0 +1,135 @@
+import { EventEmitter } from 'events';
+import Logger from './Logger';
+
+const logger = new Logger('Spotlight');
+
+export default class Spotlights extends EventEmitter
+{
+	constructor(maxSpotlights, room)
+	{
+		super();
+
+		this._room = room;
+		this._maxSpotlights = maxSpotlights;
+		this._peerList = [];
+		this._currentSpotlights = [];
+		this._started = false;
+	}
+
+	start()
+	{
+		const peers = this._room.peers;
+
+		for (const peer of peers)
+		{
+			this._handlePeer(peer);
+		}
+
+		this._handleRoom();
+
+		this._started = true;
+		this._spotlightsUpdated();
+	}
+
+	peerInSpotlights(peerName)
+	{
+		if (this._started)
+		{
+			return this._currentSpotlights.indexOf(peerName) !== -1;
+		}
+		else
+		{
+			return false;
+		}
+	}
+
+	_handleRoom()
+	{
+		this._room.on('newpeer', (peer) =>
+		{
+			logger.debug(
+				'room "newpeer" event [name:"%s", peer:%o]', peer.name, peer);
+			this._handlePeer(peer);
+		});
+	}
+
+	addSpeakerList(speakerList)
+	{
+		this._peerList = [ ...new Set([ ...speakerList, ...this._peerList ]) ];
+
+		if (this._started)
+			this._spotlightsUpdated();
+	}
+
+	_handlePeer(peer)
+	{
+		logger.debug('_handlePeer() [peerName:"%s"]', peer.name);
+
+		if (this._peerList.indexOf(peer.name) === -1) // We don't have this peer in the list
+		{
+			peer.on('close', () =>
+			{
+				const index = this._peerList.indexOf(peer.name);
+
+				if (index > -1) // We have this peer in the list, remove
+				{
+					this._peerList.splice(index, 1);
+
+					this._spotlightsUpdated();
+				}
+			});
+
+			logger.debug('_handlePeer() | adding peer [peerName:"%s"]', peer.name);
+
+			this._peerList.push(peer.name);
+
+			this._spotlightsUpdated();
+		}
+	}
+
+	handleActiveSpeaker(peerName)
+	{
+		logger.debug('handleActiveSpeaker() [peerName:"%s"]', peerName);
+
+		const index = this._peerList.indexOf(peerName);
+
+		if (index > -1)
+		{
+			this._peerList.splice(index, 1);
+			this._peerList = [ peerName ].concat(this._peerList);
+
+			this._spotlightsUpdated();
+		}
+	}
+
+	_spotlightsUpdated()
+	{
+		if (
+			!this._arraysEqual(
+				this._currentSpotlights, this._peerList.slice(0, this._maxSpotlights)
+			)
+		)
+		{
+			logger.debug('_spotlightsUpdated() | spotlights updated, emitting');
+
+			this._currentSpotlights = this._peerList.slice(0, this._maxSpotlights);
+			this.emit('spotlights-updated', this._currentSpotlights);
+		}
+		else
+			logger.debug('_spotlightsUpdated() | spotlights not updated');
+	}
+
+	_arraysEqual(arr1, arr2)
+	{
+		if (arr1.length !== arr2.length)
+			return false;
+
+		for (let i = arr1.length; i--;)
+		{
+			if (arr1[i] !== arr2[i])
+				return false;
+		}
+
+		return true;
+	}
+}

app/lib/components/Filmstrip.jsx

@@ -114,7 +114,7 @@ class Filmstrip extends Component
 
 	render()
 	{
-		const { peers, advancedMode, lastN, lastNLength } = this.props;
+		const { peers, advancedMode, spotlights, spotlightsLength } = this.props;
 
 		const activePeerName = this.getActivePeerName();
 
@@ -143,7 +143,7 @@ class Filmstrip extends Component
 							Object.keys(peers).map((peerName) =>
 							{
 								return (
-									lastN.find((lastNElement) => lastNElement === peerName)?
+									spotlights.find((spotlightsElement) => spotlightsElement === peerName)?
 										<div
 											key={peerName}
 											onClick={() => this.props.setSelectedPeer(peerName)}
@@ -166,9 +166,9 @@ class Filmstrip extends Component
 					</div>
 				</div>
 				<div className='hidden-peer-container'>
-					{ (lastNLength<Object.keys(peers).length)?
+					{ (spotlightsLength<Object.keys(peers).length)?
 						<HiddenPeers
-							lastNLength={Object.keys(peers).length-lastNLength}
+							spotlightsLength={Object.keys(peers).length-spotlightsLength}
 						/>:null
 					}
 				</div>
@@ -186,13 +186,13 @@ Filmstrip.propTypes = {
 	myName            : PropTypes.string.isRequired,
 	selectedPeerName  : PropTypes.string,
 	setSelectedPeer   : PropTypes.func.isRequired,
-	lastNLength       : PropTypes.number,
+	spotlightsLength  : PropTypes.number,
-	lastN             : PropTypes.array.isRequired
+	spotlights        : PropTypes.array.isRequired
 };
 
 const mapStateToProps = (state) =>
 {
-	const lastNLength = state.room.lastN ? state.room.lastN.length : 0;
+	const spotlightsLength = state.room.spotlights ? state.room.spotlights.length : 0;
 
 	return {
 		activeSpeakerName : state.room.activeSpeakerName,
@@ -200,8 +200,8 @@ const mapStateToProps = (state) =>
 		peers             : state.peers,
 		consumers         : state.consumers,
 		myName            : state.me.name,
-		lastN             : state.room.lastN,
+		spotlights        : state.room.spotlights,
-		lastNLength
+		spotlightsLength
 	};
 };
 

app/lib/components/Peers.jsx

@@ -93,8 +93,8 @@ class Peers extends React.Component
 			advancedMode,
 			activeSpeakerName,
 			peers,
-			lastN,
+			spotlights,
-			lastNLength
+			spotlightsLength
 		} = this.props;
 
 		const style =
@@ -109,8 +109,8 @@ class Peers extends React.Component
 					peers.map((peer) =>
 					{
 						return (
-							(lastN.find(function(lastNElement)
+							(spotlights.find(function(spotlightsElement)
-							{ return lastNElement == peer.name; }))?
+							{ return spotlightsElement == peer.name; }))?
 								<Appear key={peer.name} duration={1000}>
 									<div
 										className={classnames('peer-container', {
@@ -129,9 +129,9 @@ class Peers extends React.Component
 					})
 				}
 				<div className='hidden-peer-container'>
-					{ (lastNLength<peers.length)?
+					{ (spotlightsLength<peers.length)?
 						<HiddenPeers
-							lastNLength={peers.length-lastNLength}
+							spotlightsLength={peers.length-spotlightsLength}
 						/>:null
 					}
 				</div>
@@ -146,24 +146,24 @@ Peers.propTypes =
 		peers             : PropTypes.arrayOf(appPropTypes.Peer).isRequired,
 		boxes             : PropTypes.number,
 		activeSpeakerName : PropTypes.string,
-		lastNLength       : PropTypes.number,
+		spotlightsLength  : PropTypes.number,
-		lastN             : PropTypes.array.isRequired
+		spotlights        : PropTypes.array.isRequired
 	};
 
 const mapStateToProps = (state) =>
 {
 	const peers = Object.values(state.peers);
-	const lastN = state.room.lastN;
+	const spotlights = state.room.spotlights;
-	const lastNLength = lastN ? state.room.lastN.length : 0;
+	const spotlightsLength = spotlights ? state.room.spotlights.length : 0;
-	const boxes = lastNLength + Object.values(state.consumers)
+	const boxes = spotlightsLength + Object.values(state.consumers)
 		.filter((consumer) => consumer.source === 'screen').length;
 
 	return {
 		peers,
 		boxes,
 		activeSpeakerName : state.room.activeSpeakerName,
-		lastN,
+		spotlights,
-		lastNLength
+		spotlightsLength
 	};
 };
 

app/lib/redux/reducers/room.js

@@ -9,7 +9,7 @@ const initialState =
 	toolbarsVisible    : true,
 	mode               : 'democratic',
 	selectedPeerName   : null,
-	lastN              : []
+	spotlights         : []
 };
 
 const room = (state = initialState, action) =>
@@ -84,11 +84,11 @@ const room = (state = initialState, action) =>
 			};
 		}
 
-		case 'SET_LASTN':
+		case 'SET_SPOTLIGHTS':
 		{
-			const { lastN } = action.payload;
+			const { spotlights } = action.payload;
 
-			return { ...state, lastN };
+			return { ...state, spotlights };
 		}
 
 		default:

app/lib/redux/stateActions.js

@@ -494,8 +494,8 @@ export const setSelectedPeer = (selectedPeerName) =>
 		payload : { selectedPeerName }
 	});
 
-export const setLastN = (lastN) =>
+export const setSpotlights = (spotlights) =>
 	({
-		type    : 'SET_LASTN',
+		type    : 'SET_SPOTLIGHTS',
-		payload : { lastN }
+		payload : { spotlights }
 	});