openvidu-components: Changed impure pipe to pure to increased efficiency

- Updated the behaviour subject creating a new reference object 
- Made the streamTypesEnabled pipe to pure 
- Fixed update bug in participants panel

openvidu-components-angular/projects/openvidu-angular/src/lib/components/layout/layout.component.ts

@@ -49,14 +49,13 @@ export class LayoutComponent implements OnInit, OnDestroy, AfterViewInit {
 
 	protected subscribeToParticipants() {
 		this.localParticipantSubs = this.participantService.localParticipantObs.subscribe((p) => {
-			// We need to update the object reference doing a deep copy for update the view
+			this.localParticipant = p;
-			this.localParticipant = Object.assign(Object.create(p), p)
 			this.layoutService.update();
 			this.cd.markForCheck();
 		});
 
 		this.remoteParticipantsSubs = this.participantService.remoteParticipantsObs.subscribe((participants) => {
-			this.remoteParticipants = [...participants];
+			this.remoteParticipants = participants;
 			this.layoutService.update();
 			this.cd.markForCheck();
 		});

openvidu-components-angular/projects/openvidu-angular/src/lib/components/panel/participants-panel/participant-panel-item/participant-panel-item.component.ts

@@ -1,10 +1,12 @@
-import { Component, Input } from '@angular/core';
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Input } from '@angular/core';
 import { ParticipantAbstractModel } from '../../../../models/participant.model';
 
 @Component({
 	selector: 'ov-participant-panel-item',
 	templateUrl: './participant-panel-item.component.html',
-	styleUrls: ['./participant-panel-item.component.css']
+	styleUrls: ['./participant-panel-item.component.css'],
+	changeDetection: ChangeDetectionStrategy.OnPush
+
 })
 export class ParticipantPanelItemComponent {
 
@@ -12,6 +14,7 @@ export class ParticipantPanelItemComponent {
 	set participant(p: ParticipantAbstractModel) {
 		this._participant = p;
 	}
+
 	_participant: ParticipantAbstractModel;
 	constructor() {}
 

openvidu-components-angular/projects/openvidu-angular/src/lib/components/panel/participants-panel/participants-panel/participants-panel.component.css

@@ -27,6 +27,8 @@
 }
 
 .scrollable {
+	height: calc(100% - 60px);
+	max-height: calc(100% - 60px);
 	overflow: auto;
 }
 

openvidu-components-angular/projects/openvidu-angular/src/lib/components/panel/participants-panel/participants-panel/participants-panel.component.html

@@ -8,14 +8,14 @@
 
 	<div class="scrollable">
 
-		<div class="local-participant-container">
+		<div class="local-participant-container" *ngIf="localParticipant">
 			<ng-container *ngTemplateOutlet="participantPanelItemTemplate; context: { $implicit: localParticipant }"></ng-container>
 			<mat-divider *ngIf="true"></mat-divider>
 		</div>
 
 		<div class="remote-participants-container" *ngIf="remoteParticipants.length > 0">
 
-			<div *ngFor="let participant of remoteParticipants; let lastItem = last">
+			<div *ngFor="let participant of this.remoteParticipants">
 				<ng-container *ngTemplateOutlet="participantPanelItemTemplate; context: { $implicit: participant }"></ng-container>
 			</div>
 		</div>

openvidu-components-angular/projects/openvidu-angular/src/lib/components/panel/participants-panel/participants-panel/participants-panel.component.ts

@@ -1,8 +1,9 @@
-import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChild, OnInit, TemplateRef } from '@angular/core';
+import { ChangeDetectionStrategy, ChangeDetectorRef, Component, ContentChild, OnDestroy, OnInit, TemplateRef } from '@angular/core';
-import { ParticipantAbstractModel, ParticipantModel } from '../../../../models/participant.model';
+import { ParticipantAbstractModel } from '../../../../models/participant.model';
 import { ParticipantService } from '../../../../services/participant/participant.service';
 import { SidenavMenuService } from '../../../..//services/sidenav-menu/sidenav-menu.service';
 import { ParticipantPanelItemDirective } from '../../../../directives/openvidu-angular.directive';
+import { Subscription } from 'rxjs';
 
 @Component({
 	selector: 'ov-participants-panel',
@@ -10,9 +11,12 @@ import { ParticipantPanelItemDirective } from '../../../../directives/openvidu-a
 	styleUrls: ['./participants-panel.component.css'],
 	changeDetection: ChangeDetectionStrategy.OnPush
 })
-export class ParticipantsPanelComponent implements OnInit {
+export class ParticipantsPanelComponent implements OnInit, OnDestroy {
 	localParticipant: any;
 	remoteParticipants: ParticipantAbstractModel[] = [];
+
+	private localParticipantSubs: Subscription;
+	private remoteParticipantsSubs: Subscription;
 	@ContentChild('participantPanelItem', { read: TemplateRef }) participantPanelItemTemplate: TemplateRef<any>;
 
 	@ContentChild(ParticipantPanelItemDirective)
@@ -28,22 +32,34 @@ export class ParticipantsPanelComponent implements OnInit {
 		protected participantService: ParticipantService,
 		protected menuService: SidenavMenuService,
 		private cd: ChangeDetectorRef
-	) {}
+	) {
+
+	}
 
 	ngOnInit(): void {
-		this.participantService.localParticipantObs.subscribe((p: ParticipantModel) => {
+
+		this.localParticipantSubs = this.participantService.localParticipantObs.subscribe((p: ParticipantAbstractModel) => {
 			this.localParticipant = p;
 			// Mark for re-rendering using an impure pipe 'streamsTypesEnabled'
 			this.cd.markForCheck();
 		});
 
-		this.participantService.remoteParticipantsObs.subscribe((p: ParticipantModel[]) => {
+		this.remoteParticipantsSubs = this.participantService.remoteParticipantsObs.subscribe((p: ParticipantAbstractModel[]) => {
-			this.remoteParticipants = p;
+			// Workaround which forc the objects references update
+			// After one entirely day trying to make it works, this is the only way
+			p.forEach((par, index) => {
+				this.remoteParticipants[index] = Object.create(par);
+			});
 			// Mark for re-rendering using an impure pipe 'streamsTypesEnabled'
 			this.cd.markForCheck();
 		});
 	}
 
+	ngOnDestroy() {
+		if (this.localParticipantSubs) this.localParticipantSubs.unsubscribe();
+		if (this.remoteParticipantsSubs) this.remoteParticipantsSubs.unsubscribe;
+	}
+
 	close() {
 		this.menuService.closeMenu();
 	}

openvidu-components-angular/projects/openvidu-angular/src/lib/models/participant.model.ts

@@ -33,7 +33,7 @@ export abstract class ParticipantAbstractModel {
 		this.colorProfile = !!props.colorProfile ? props.colorProfile : `hsl(${Math.random()*360}, 100%, 80%)`;
 		this.isMutedForcibly = typeof props.isMutedForcibly === 'boolean' ? props.isMutedForcibly : false;
 		let streamModel: StreamModel = {
-			connected: true,
+			connected: model ? model.connected : true,
 			type: model ? model.type : VideoType.CAMERA,
 			streamManager: model ? model.streamManager : null,
 			videoEnlarged: model ? model.videoEnlarged : false,

openvidu-components-angular/projects/openvidu-angular/src/lib/pipes/participant.pipe.ts

@@ -1,15 +1,13 @@
 import { Pipe, PipeTransform } from '@angular/core';
 import { StreamModel, ParticipantAbstractModel } from '../models/participant.model';
 
-@Pipe({ name: 'streams', pure: true })
+@Pipe({ name: 'streams' })
 export class ParticipantStreamsPipe implements PipeTransform {
 	constructor() {}
 
 	transform(participants: ParticipantAbstractModel[] | ParticipantAbstractModel): StreamModel[] {
 		let streams: StreamModel[] = [];
-		console.log('STREAM PIPE')
+		if(participants && Object.keys(participants).length > 0){
-		debugger
-		if(Object.keys(participants).length > 0){
 			if (Array.isArray(participants)) {
 				participants.forEach((p) => {
 					streams = streams.concat(p.getAvailableConnections());
@@ -23,11 +21,12 @@ export class ParticipantStreamsPipe implements PipeTransform {
 	}
 }
 
-@Pipe({ name: 'streamTypesEnabled', pure: false })
+@Pipe({ name: 'streamTypesEnabled' })
 export class StreamTypesEnabledPipe implements PipeTransform {
 	constructor() {}
 
 	transform(participant: ParticipantAbstractModel): string {
-		return `(${participant?.getConnectionTypesActive().toString().replace(',', ', ')})`;
+		const activeStreams = participant?.getConnectionTypesActive().toString();
+		return `(${activeStreams.replace(',', ', ')})`;
 	}
 }

openvidu-components-angular/projects/openvidu-angular/src/lib/services/participant/participant.service.ts

@@ -174,7 +174,7 @@ export class ParticipantService {
 	}
 
 	updateLocalParticipant() {
-		this._localParticipant.next(this.localParticipant);
+		this._localParticipant.next(Object.assign(Object.create(this.localParticipant),this.localParticipant));
 	}
 
 	/**
@@ -287,7 +287,7 @@ export class ParticipantService {
 	}
 
 	updateRemoteParticipants() {
-		this._remoteParticipants.next(this.remoteParticipants);
+		this._remoteParticipants.next([...this.remoteParticipants]);
 	}
 
 	protected getTypeConnectionData(data: string): VideoType {