# All files / src/lib/components/user-settings user-settings.component.ts

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24.39% Branches 40/164
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     import { Component, ElementRef, EventEmitter, HostListener, Input, OnDestroy, OnInit, Output, ViewChild } from '@angular/core';
    import { FormControl, Validators } from '@angular/forms';
    impoIrt { Subscription } from 'rxjs';

    import { OpenViduErrorName } from 'openvidu-browser/lib/OpenViduInternal/Enums/OpenViduError';
    import { Publisher } from 'openvidu-browser';

    import { ILogger } from '../../models/logger.model';
    import { CameraType, IDevice } from '../../models/device.model';
    import { UserModel } from '../../models/user.model';
    import { Storage } from '../../models/storage.model';
    import { ScreenType } from '../../models/video-type.model';

    import { NicknameMatcher } from '../../matchers/nickname.matcher';

    import { DeviceService } from '../../services/device/device.service';
    import { LoggerService } from '../../services/logger/logger.service';
    import { StorageService } from '../../services/storage/storage.service';
    import { LocalUserService } from '../../services/local-user/local-user.service';
    import { WebrtcService } from '../../services/webrtc/webrtc.service';
    import { ActionService } from '../../services/action/action.service';

    @Component({
    	selector: 'ov-user-settings',
    	templateUrl: './user-settings.component.html',
    	styleUrls: ['./user-settings.component.css']
    })
    export class UserSettingsComponent implements OnInit, OnDestroy {
    	@ViewChild('bodyCard') bodyCard: ElementRef;

    	@Input() sessionId: string;
    	@Output() onJoinClicked = new EventEmitter<any>();
    	@Output() onCloseClicked = new EventEmitter<any>();

    	cameras: IDevice[];
    	microphones: IDevice[];
    	camSelected: IDevice;
    	micSelected: IDevice;
    	isVideoActive = true;
    	isAudioActive = true;
    	screenShareEnabled: boolean;
    	localUsers: UserModel[] = [];
    	columns: number;

    	nicknameFormControl = new FormControl('', [Validators.maxLength(25), Validators.required]);
    	matcher = new NicknameMatcher();
    	hasVideoDevices: boolean;
    	hasAudioDevices: boolean;
    	private log: ILogger;
    	private oVUsersSubscription: Subscription;
    	private screenShareStateSubscription: Subscription;

    	constructor(
    		private actionService: ActionService,
    		private deviceSrv: DeviceService,
    		private loggerSrv: LoggerService,
    		private openViduWebRTCService: WebrtcService,
    		private localUserService: LocalUserService,
    		private storageSrv: StorageService
    		) {
    			this.log = this.loggerSrv.get('UserSettingsComponent');

    		}

    	@HostListener('window:beforeunload')
    	beforeunloadHandler() {
    		this.close();
    	}

    	async ngOnInit() {
    		this.subscribeToLocalUsersEvents();
    		this.initNicknameAndSubscribeToChanges();
    		this.columns = window.innerWidth > 900 ? 2 : 1;
    		await this.deviceSrv.initDevices();
    		this.setDevicesInfo();
    		if (this.hasAudioDevices || this.hasVideoDevices) {
    			await this.initwebcamPublisher();
    		}
    	}

    	ngOnDestroy() {
    		if (this.oVUsersSubscription) {
    			this.oVUsersSubscription.unsubscribe();
    		}

    		if (this.screenShareStateSubscription) {
    			this.screenShareStateSubscription.unsubscribe();
    		}
    		this.deviceSrv.clear();
    	}

    	async onCameraSelected(event: any) {
    		const videoSource = event?.value;
    		if (!!videoSource) {
    			// Is New deviceId different from the old one?
    			if (this.deviceSrv.needUpdateVideoTrack(videoSource)) {
    				const mirror = this.deviceSrv.cameraNeedsMirror(videoSource);
    				await this.openViduWebRTCService.replaceTrack(videoSource, null, mirror);
    				this.deviceSrv.setCamSelected(videoSource);
    				this.camSelected = this.deviceSrv.getCamSelected();
    			}
    			// Publish Webcam
    			this.openViduWebRTCService.publishWebcamVideo(true);
    			this.isVideoActive = true;
    			return;
    		}
    		// Unpublish webcam
    		this.openViduWebRTCService.publishWebcamVideo(false);
    		this.isVideoActive = false;
    	}

    	async onMicrophoneSelected(event: any) {
    		const audioSource = event?.value;

    		if (!!audioSource) {
    			// Is New deviceId different than older?
    			if (this.deviceSrv.needUpdateAudioTrack(audioSource)) {
    				console.log(this.camSelected);
    				const mirror = this.deviceSrv.cameraNeedsMirror(this.camSelected.device);
    				await this.openViduWebRTCService.replaceTrack(null, audioSource, mirror);
    				this.deviceSrv.setMicSelected(audioSource);
    				this.micSelected = this.deviceSrv.getMicSelected();
    			}
    			// Publish microphone
    			this.publishAudio(true);
    			this.isAudioActive = true;
    			return;
    		}
    		// Unpublish microhpone
    		this.publishAudio(false);
    		this.isAudioActive = false;
    	}

    	toggleCam() {
    		this.isVideoActive = !this.isVideoActive;
    		this.openViduWebRTCService.publishWebcamVideo(this.isVideoActive);

    		if (this.localUserService.areBothConnected()) {
    			this.localUserService.disableWebcamUser();
    			this.openViduWebRTCService.publishScreenAudio(this.isAudioActive);
    		} else if (this.localUserService.isOnlyScreenConnected()) {
    			this.localUserService.enableWebcamUser();
    		}
    	}

    	toggleScreenShare() {
    		// Disabling screenShare
    		if (this.localUserService.areBothConnected()) {
    			this.localUserService.disableScreenUser();
    			return;
    		}

    		// Enabling screenShare
    		if (this.localUserService.isOnlyWebcamConnected()) {
    			const screenPublisher = this.initScreenPublisher();

    			screenPublisher.on('accessAllowed', (event) => {
    				screenPublisher.stream
    					.getMediaStream()
    					.getVideoTracks()[0]
    					.addEventListener('ended', () => {
    						this.log.d('Clicked native stop button. Stopping screen sharing');
    						this.toggleScreenShare();
    					});
    				this.localUserService.enableScreenUser(screenPublisher);
    				if (!this.localUserService.hasWebcamVideoActive()) {
    					this.localUserService.disableWebcamUser();
    				}
    			});

    			screenPublisher.on('accessDenied', (error: any) => {
    				if (error && error.name === 'SCREEN_SHARING_NOT_SUPPORTED') {
    					this.actionService.openDialog('Error sharing screen', 'Your browser does not support screen sharing');
    				}
    			});
    			return;
    		}

    		// Disabling screnShare and enabling webcam
    		this.localUserService.enableWebcamUser();
    		this.localUserService.disableScreenUser();
    	}

    	toggleMic() {
    		this.isAudioActive = !this.isAudioActive;
    		this.publishAudio(this.isAudioActive);
    	}

    	initNicknameAndSubscribeToChanges() {

    		const nickname = this.storageSrv.get(Storage.USER_NICKNAME) || this.generateRandomNickname();
    		this.nicknameFormControl.setValue(nickname);
    		this.localUserService.updateUsersNickname(nickname);

    		this.nicknameFormControl.valueChanges.subscribe((value) => {
    			this.localUserService.updateUsersNickname(value);
    			this.storageSrv.set(Storage.USER_NICKNAME, value);
    		});
    	}

    	eventKeyPress(event) {
    		if (event && event.keyCode === 13 && this.nicknameFormControl.valid) {
    			this.joinSession();
    		}
    	}

    	onResize(event) {
    		this.columns = event.target.innerWidth > 900 ? 2 : 1;
    	}

    	joinSession() {
    		if (this.nicknameFormControl.valid) {
    			return this.onJoinClicked.emit();
    		}
    		this.scrollToBottom();
    	}

    	close() {
    		this.onCloseClicked.emit();
    	}

    	private setDevicesInfo() {
    		this.hasVideoDevices = this.deviceSrv.hasVideoDeviceAvailable();
    		this.hasAudioDevices = this.deviceSrv.hasAudioDeviceAvailable();
    		this.microphones = this.deviceSrv.getMicrophones();
    		this.cameras = this.deviceSrv.getCameras();
    		this.camSelected = this.deviceSrv.getCamSelected();
    		this.micSelected = this.deviceSrv.getMicSelected();
    	}

    	private scrollToBottom(): void {
    		try {
    			this.bodyCard.nativeElement.scrollTop = this.bodyCard.nativeElement.scrollHeight;
    		} catch (err) {}
    	}

    	// !DUPLICATED ON toolbar.component.ts
    	private initScreenPublisher(): Publisher {
    		const videoSource = ScreenType.SCREEN;
    		const audioSource = this.hasAudioDevices ? undefined : null;
    		const willThereEBeWebcam = this.localUserService.isWebCamEnabled() && this.localUserService.hasWebcamVideoActive();
    		const hasAudio = willThereBeWebcam ? false : this.hasAudioDevices && this.isAudioActive;
    		const properties = this.openViduWebRTCService.createPublisherProperties(videoSource, audioSource, true, hasAudio, false);
    		return this.openViduWebRTCService.initPublisher(undefined, properties);
    	}

    	private publishAudio(audio: boolean) {
    		this.localUserService.isWebCamEnabled()
    			? this.openViduWebRTCService.publishWebcamAudio(audio)
    			: this.openViduWebRTCService.publishScreenAudio(audio);
    	}

    	private subscribeToLocalUsersEvents() {
    		this.oVUsersSubscription = this.localUserService.OVUsers.subscribe((users) => {
    			this.localUsers = users;
    		});
    		this.screenShareStateSubscription = this.localUserService.screenShareState.subscribe((enabled) => {
    			this.screenShareEnabled = enabled;
    		});
    	}

    	private async initwebcamPublisher() {
    		const micStorageDevice = this.micSelected?.device || undefined;
    		const camStorageDevice = this.camSelected?.device || undefined;

    		const videoSource = this.hasVideoDevices ? camStorageDevice : false;
    		const audioSource = this.hasAudioDevices ? micStorageDevice : false;
    		const publishAudio = this.hasAudioDevices ? this.isAudioActive : false;
    		const publishVideo = this.hasVideoDevices ? this.isVideoActive : false;
    		const mirror = this.camSelected && this.camSelected.type === CameraType.FRONT;
    		const properties = this.openViduWebRTCService.createPublisherProperties(
    			videoSource,
    			audioSource,
    			publishVideo,
    			publishAudio,
    			mirror
    		);
    		if (this.hasAudioDevices || this.hasVideoDevices) {
    			const publisher = this.openViduWebRTCService.initPublisher(undefined, properties);
    			this.localUserService.setWebcamPublisher(publisher);
    			this.handlePublisherSuccess(publisher);
    			this.handlePublisherError(publisher);
    		} else {
    			this.localUserService.setWebcamPublisher(null);
    		}
    	}

    	private handlePublisherSuccess(publisher: Publisher) {
    		publisher.once('accessAllowed', async () => {
    			if (this.deviceSrv.areEmptyLabels()) {
    				await this.deviceSrv.initDevices();
    				if (this.hasAudioDevices) {
    					const audioLabel = publisher?.stream?.getMediaStream()?.getAudioTracks()[0]?.label;
    					this.deviceSrv.setMicSelected(audioLabel);
    				}

    				if (this.hasVideoDevices) {
    					const videoLabel = publisher?.stream?.getMediaStream()?.getVideoTracks()[0]?.label;
    					this.deviceSrv.setCamSelected(videoLabel);
    				}
    				this.setDevicesInfo();
    			}
    		});
    	}

    	private handlePublisherError(publisher: Publisher) {
    		publisher.once('accessDenied', (e: any) => {
    			let message: string;
    			if (e.name === OpenViduErrorName.DEVICE_ALREADY_IN_USE) {
    				this.log.w('Video device already in use. Disabling video device...');
    				// Allow access to the room with only mic if camera device is already in use
    				this.hasVideoDevices = false;
    				this.deviceSrv.disableVideoDevices();
    				return this.initwebcamPublisher();
    			}
    			if (e.name === OpenViduErrorName.DEVICE_ACCESS_DENIED) {
    				message = 'Access to media devices was not allowed.';
    				this.hasVideoDevices = false;
    				this.hasAudioDevices = false;
    				this.deviceSrv.disableVideoDevices();
    				this.deviceSrv.disableAudioDevices();
    				return this.initwebcamPublisher();
    			} else if (e.name === OpenViduErrorName.NO_INPUT_SOURCE_SET) {
    				message = 'No video or audio devices have been found. Please, connect at least one.';
    			}
    			this.actionService.openDialog(e.name.replace(/_/g, ' '), message, true);
    			this.log.e(e.message);
    		});
    	}

    	private generateRandomNickname(): string {
    		return 'OpenVidu_User' + Math.floor(Math.random() * 100);
    	}
    }