added OnDestroy method

src/main/webapp/app/home/home.component.html

@@ -1,9 +1,7 @@
-<div class="row" >***{{isLoading}}***
-	<!--
-	<div *ngIf="loading" class="loader-container">
+<div class="row" >
+	<div *ngIf="isLoading" class="loader-container">
 		<mat-spinner mode="indeterminate" style="top: 50%; left: 50%;"></mat-spinner>
 	</div>
-	-->
 <div class="d-flex flex-row py-4">
   <div id="btn-group" class="col-md-3 mt-3">
     <button mat-raised-button color="primary"><mat-icon>source</mat-icon> <span>File</span></button>

src/main/webapp/app/home/home.component.ts

@@ -5,14 +5,14 @@
 /* eslint-disable @typescript-eslint/no-unnecessary-condition */
 /* eslint-disable @typescript-eslint/restrict-plus-operands */
 // eslint-disable-next-line @typescript-eslint/no-unsafe-return
-import { Component, OnInit } from '@angular/core';
+import { Component, OnDestroy, OnInit } from '@angular/core';
 
 import { LoginService } from 'app/login/login.service';
 import { AccountService } from 'app/core/auth/account.service';
 import { Account } from 'app/core/auth/account.model';
 import { FormBuilder, FormControl, FormGroup, ValidationErrors, ValidatorFn, Validators } from '@angular/forms';
 import { Clipboard } from '@angular/cdk/clipboard'
-import { Observable, delay, map, startWith } from 'rxjs';
+import { Observable, Subject, Subscription, delay, map, startWith, takeUntil } from 'rxjs';
 import { ContextsLoaderService } from 'app/services/contexts-loader.service';
 import { IContextNode } from 'app/services/i-context-node';
 import { AutofillValidator, instanceOfContext } from './autofill-validator';
@@ -26,7 +26,7 @@ import { SpinnerLoadingService } from 'app/services/spinner-loading.service';
 	providers: [ContextsLoaderService],
 })
 
-export class HomeComponent implements OnInit {
+export class HomeComponent implements OnInit, OnDestroy {
 	account: Account | null = null;
 	myContext: IContextNode | null = null;
 	//stringCtxs: string[];
@@ -36,6 +36,8 @@ export class HomeComponent implements OnInit {
   	chooseContextForm: FormGroup | any;
   	resType: string;
   	isLoading: boolean = false;
+  	subscriptions: Subscription[] = [];
+  	
 	
 	
 	constructor(
@@ -68,11 +70,11 @@ export class HomeComponent implements OnInit {
 				      uidfield: [''],
 				    });
 			 
-			this.progressService.getState()
-			.pipe(delay(0))
+			this.subscriptions.push(this.progressService.getState()
+			.pipe()
 		      .subscribe(res => {
 		        this.isLoading = res;
-		      });
+		      }));
       
 				  // per la form dei contesti
 			this.ctxLoaderService.fetchAll().subscribe(res => {
@@ -85,6 +87,11 @@ export class HomeComponent implements OnInit {
 		    	);
 	}
 
+	//TODO: CHECK WHY UNSUBSCRIBE DOES NOT WORK
+		ngOnDestroy(): void {
+			//alert(this.subscriptions.length);
+ 			this.subscriptions.forEach(sub => sub.unsubscribe());
+	}
  
 	//mettere ANY come tipo dell'argomento per evitare errore TypeScript nella map!!
 	filterContexts(/*ctx: IContextNode,*/ item: any): IContextNode[] {

src/main/webapp/app/shared/spinnercontrol.interceptor.ts

@@ -36,6 +36,7 @@ export class SpinnercontrolInterceptor implements HttpInterceptor {
 			    let ok: string;
 			    // extend server response observable with logging
 			   if(request.url.includes('resourceinstances')){
+				this.myService.setState(true);
 			    return next.handle(request)
 			      .pipe(
 			        tap({
@@ -46,12 +47,13 @@ export class SpinnercontrolInterceptor implements HttpInterceptor {
 			        }),
 			        // Log when response observable either completes or errors
 			        finalize(() => {
+						/*
 			          const elapsed = Date.now() - started;
 			          const msg = `${request.method} "${request.urlWithParams}"
 			             ${ok} in ${elapsed} ms.`;
 			          console.debug("***** MSG INIZIO ******");
 			          console.debug(msg);
-			          console.debug("***** MSG FINE - ORA METTO A FALSE ******");
+			          */
 			          this.myService.setState(false);
 			        })
 			      );