Merge pull request #4488 from alexandrevryghem/w2p-117573_remove-observable-function-calls-from-template-7_x

[Port dspace-7_x] Removed observable function calls from template (part 2)

src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.html

@@ -1,4 +1,4 @@
-<div *ngIf="registryService.getActiveMetadataField() | async; then editheader; else createHeader"></div>
+<div *ngIf="activeMetadataField$ | async; then editheader; else createHeader"></div>
 
 <ng-template #createHeader>
     <h2>{{messagePrefix + '.create' | translate}}</h2>

src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.ts

@@ -11,7 +11,7 @@ import { RegistryService } from '../../../../core/registry/registry.service';
 import { FormBuilderService } from '../../../../shared/form/builder/form-builder.service';
 import { take } from 'rxjs/operators';
 import { TranslateService } from '@ngx-translate/core';
-import { combineLatest } from 'rxjs';
+import { Observable } from 'rxjs';
 import { MetadataSchema } from '../../../../core/metadata/metadata-schema.model';
 import { MetadataField } from '../../../../core/metadata/metadata-field.model';
 
@@ -90,6 +90,8 @@ export class MetadataFieldFormComponent implements OnInit, OnDestroy {
    */
   @Output() submitForm: EventEmitter<any> = new EventEmitter();
 
+  activeMetadataField$: Observable<MetadataField>;
+
   constructor(public registryService: RegistryService,
               private formBuilderService: FormBuilderService,
               private translateService: TranslateService) {
@@ -99,70 +101,64 @@ export class MetadataFieldFormComponent implements OnInit, OnDestroy {
    * Initialize the component, setting up the necessary Models for the dynamic form
    */
   ngOnInit() {
-    combineLatest([
+    this.element = new DynamicInputModel({
-      this.translateService.get(`${this.messagePrefix}.element`),
+      id: 'element',
-      this.translateService.get(`${this.messagePrefix}.qualifier`),
+      label: this.translateService.instant(`${this.messagePrefix}.element`),
-      this.translateService.get(`${this.messagePrefix}.scopenote`)
+      name: 'element',
-    ]).subscribe(([element, qualifier, scopenote]) => {
+      validators: {
-      this.element = new DynamicInputModel({
+        required: null,
-        id: 'element',
+        pattern: '^[^. ,]*$',
-        label: element,
+        maxLength: 64,
-        name: 'element',
+      },
-        validators: {
+      required: true,
-          required: null,
+      errorMessages: {
-          pattern: '^[^. ,]*$',
+        pattern: 'error.validation.metadata.element.invalid-pattern',
-          maxLength: 64,
+        maxLength: 'error.validation.metadata.element.max-length',
-        },
+      },
-        required: true,
+    });
-        errorMessages: {
+    this.qualifier = new DynamicInputModel({
-          pattern: 'error.validation.metadata.element.invalid-pattern',
+      id: 'qualifier',
-          maxLength: 'error.validation.metadata.element.max-length',
+      label: this.translateService.instant(`${this.messagePrefix}.qualifier`),
-        },
+      name: 'qualifier',
-      });
+      validators: {
-      this.qualifier = new DynamicInputModel({
+        pattern: '^[^. ,]*$',
-        id: 'qualifier',
+        maxLength: 64,
-        label: qualifier,
+      },
-        name: 'qualifier',
+      required: false,
-        validators: {
+      errorMessages: {
-          pattern: '^[^. ,]*$',
+        pattern: 'error.validation.metadata.qualifier.invalid-pattern',
-          maxLength: 64,
+        maxLength: 'error.validation.metadata.qualifier.max-length',
-        },
+      },
-        required: false,
+    });
-        errorMessages: {
+    this.scopeNote = new DynamicTextAreaModel({
-          pattern: 'error.validation.metadata.qualifier.invalid-pattern',
+      id: 'scopeNote',
-          maxLength: 'error.validation.metadata.qualifier.max-length',
+      label: this.translateService.instant(`${this.messagePrefix}.scopenote`),
-        },
+      name: 'scopeNote',
-      });
+      required: false,
-      this.scopeNote = new DynamicTextAreaModel({
+      rows: 5,
-        id: 'scopeNote',
+    });
-        label: scopenote,
+    this.formModel = [
-        name: 'scopeNote',
+      new DynamicFormGroupModel(
-        required: false,
+      {
-        rows: 5,
+        id: 'metadatadatafieldgroup',
-      });
+        group:[this.element, this.qualifier, this.scopeNote]
-      this.formModel = [
+      })
-        new DynamicFormGroupModel(
+    ];
-        {
+    this.formGroup = this.formBuilderService.createFormGroup(this.formModel);
-          id: 'metadatadatafieldgroup',
+    this.registryService.getActiveMetadataField().subscribe((field: MetadataField): void => {
-          group:[this.element, this.qualifier, this.scopeNote]
+      if (field == null) {
-        })
+        this.clearFields();
-      ];
+      } else {
-      this.formGroup = this.formBuilderService.createFormGroup(this.formModel);
+        this.formGroup.patchValue({
-      this.registryService.getActiveMetadataField().subscribe((field: MetadataField): void => {
+          metadatadatafieldgroup: {
-        if (field == null) {
+            element: field.element,
-          this.clearFields();
+            qualifier: field.qualifier,
-        } else {
+            scopeNote: field.scopeNote,
-          this.formGroup.patchValue({
+          },
-            metadatadatafieldgroup: {
+        });
-              element: field.element,
+        this.element.disabled = true;
-              qualifier: field.qualifier,
+        this.qualifier.disabled = true;
-              scopeNote: field.scopeNote,
+      }
-            },
-          });
-          this.element.disabled = true;
-          this.qualifier.disabled = true;
-        }
-      });
     });
   }
 

src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.html

@@ -1,9 +1,9 @@
 <div class="container">
-  <ds-alert [type]="'alert-info'" [content]="'item.edit.authorizations.heading'"></ds-alert>
+  <ds-alert [type]="AlertType.Info" [content]="'item.edit.authorizations.heading'"></ds-alert>
-  <ds-resource-policies [resourceType]="'item'" [resourceName]="(getItemName() | async)"
+  <ds-resource-policies [resourceType]="'item'" [resourceName]="itemName$ | async"
-    [resourceUUID]="(getItemUUID() | async)">
+    [resourceUUID]="(item$ | async)?.id">
   </ds-resource-policies>
-  <ng-container *ngFor="let bundle of (bundles$ | async); trackById">
+  <ng-container *ngFor="let bundle of (bundles$ | async)">
     <ds-resource-policies [resourceType]="'bundle'" [resourceUUID]="bundle.id" [resourceName]="bundle.name">
     </ds-resource-policies>
     <ng-container *ngIf="(bundleBitstreamsMap.get(bundle.id)?.bitstreams | async)?.length > 0">
@@ -16,7 +16,7 @@
         </div>
         <div class="card-body" [id]="bundle.id" [ngbCollapse]="bundleBitstreamsMap.get(bundle.id).isCollapsed">
           <ng-container
-            *ngFor="let bitstream of (bundleBitstreamsMap.get(bundle.id).bitstreams | async); trackById">
+            *ngFor="let bitstream of (bundleBitstreamsMap.get(bundle.id).bitstreams | async)">
             <ds-resource-policies [resourceType]="'bitstream'" [resourceUUID]="bitstream.id"
               [resourceName]="bitstream.name"></ds-resource-policies>
           </ng-container>

src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.spec.ts

@@ -147,17 +147,9 @@ describe('ItemAuthorizationsComponent test suite', () => {
       }));
     });
 
-    it('should get the item UUID', () => {
-
-      expect(comp.getItemUUID()).toBeObservable(cold('(a|)', {
-        a: item.id
-      }));
-
-    });
-
     it('should get the item\'s bundle', () => {
 
-      expect(comp.getItemBundles()).toBeObservable(cold('a', {
+      expect(comp.bundles$).toBeObservable(cold('a', {
         a: bundles
       }));
 

src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.ts

@@ -4,7 +4,7 @@ import { Component, OnDestroy, OnInit } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
 
 import { BehaviorSubject, Observable, of as observableOf, Subscription } from 'rxjs';
-import { catchError, filter, first, map, mergeMap, take } from 'rxjs/operators';
+import { catchError, filter, map, mergeMap, take } from 'rxjs/operators';
 
 import { buildPaginatedList, PaginatedList } from '../../../core/data/paginated-list.model';
 import {
@@ -17,6 +17,7 @@ import { LinkService } from '../../../core/cache/builders/link.service';
 import { Bundle } from '../../../core/shared/bundle.model';
 import { hasValue, isNotEmpty } from '../../../shared/empty.util';
 import { Bitstream } from '../../../core/shared/bitstream.model';
+import { AlertType } from '../../../shared/alert/alert-type';
 
 /**
  * Interface for a bundle's bitstream map entry
@@ -52,7 +53,7 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
    * The target editing item
    * @type {Observable<Item>}
    */
-  private item$: Observable<Item>;
+  item$: Observable<Item>;
 
   /**
    * Array to track all subscriptions and unsubscribe them onDestroy
@@ -91,16 +92,13 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
    */
   private bitstreamPageSize = 4;
 
-  /**
+  itemName$: Observable<string>;
-   * Initialize instance variables
+
-   *
+  readonly AlertType = AlertType;
-   * @param {LinkService} linkService
+
-   * @param {ActivatedRoute} route
-   * @param nameService
-   */
   constructor(
-    private linkService: LinkService,
+    protected linkService: LinkService,
-    private route: ActivatedRoute,
+    protected route: ActivatedRoute,
     public nameService: DSONameService
   ) {
   }
@@ -109,37 +107,19 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
    * Initialize the component, setting up the bundle and bitstream within the item
    */
   ngOnInit(): void {
-   this.getBundlesPerItem();
+    this.getBundlesPerItem();
+    this.itemName$ = this.getItemName();
   }
 
   /**
-   * Return the item's UUID
+   * Return the item's name
    */
-  getItemUUID(): Observable<string> {
+  private getItemName(): Observable<string> {
-    return this.item$.pipe(
-      map((item: Item) => item.id),
-      first((UUID: string) => isNotEmpty(UUID))
-    );
-  }
-
-  /**
- * Return the item's name
- */
-  getItemName(): Observable<string> {
     return this.item$.pipe(
       map((item: Item) => this.nameService.getName(item))
     );
   }
 
-  /**
-   * Return all item's bundles
-   *
-   * @return an observable that emits all item's bundles
-   */
-  getItemBundles(): Observable<Bundle[]> {
-    return this.bundles$.asObservable();
-  }
-
   /**
    * Get all bundles per item
    * and all the bitstreams per bundle

src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.html

@@ -1,18 +1,18 @@
 <div class="container mb-5">
   <h1>{{'person.orcid.registry.auth' | translate}}</h1>
-  <ng-container *ngIf="(isLinkedToOrcid() | async); then orcidLinked; else orcidNotLinked"></ng-container>
+  <ng-container *ngIf="(isOrcidLinked$ | async); then orcidLinked; else orcidNotLinked"></ng-container>
 </div>
 
 <ng-template #orcidLinked>
   <div data-test="orcidLinked">
     <div class="row">
-      <div *ngIf="(hasOrcidAuthorizations() | async)" class="col-sm-6 mb-3" data-test="hasOrcidAuthorizations">
+      <div *ngIf="(hasOrcidAuthorizations$ | async)" class="col-sm-6 mb-3" data-test="hasOrcidAuthorizations">
         <div class="card h-100">
           <div class="card-header">{{ 'person.page.orcid.granted-authorizations'| translate }}</div>
           <div class="card-body">
             <div class="container p-0">
               <ul>
-                <li *ngFor="let auth of (getOrcidAuthorizations() | async)" data-test="orcidAuthorization">
+                <li *ngFor="let auth of profileAuthorizationScopes$ | async" data-test="orcidAuthorization">
                   {{getAuthorizationDescription(auth) | translate}}
                 </li>
               </ul>
@@ -25,13 +25,13 @@
           <div class="card-header">{{ 'person.page.orcid.missing-authorizations'| translate }}</div>
           <div class="card-body">
             <div class="container">
-              <ds-alert *ngIf="!(hasMissingOrcidAuthorizations() | async)" [type]="'alert-success'" data-test="noMissingOrcidAuthorizations">
+              <ds-alert *ngIf="!(hasMissingOrcidAuthorizations$ | async)" [type]="AlertType.Success" data-test="noMissingOrcidAuthorizations">
                 {{'person.page.orcid.no-missing-authorizations-message' | translate}}
               </ds-alert>
-              <ds-alert *ngIf="(hasMissingOrcidAuthorizations() | async)" [type]="'alert-warning'" data-test="missingOrcidAuthorizations">
+              <ds-alert *ngIf="(hasMissingOrcidAuthorizations$ | async)" [type]="AlertType.Warning" data-test="missingOrcidAuthorizations">
                 {{'person.page.orcid.missing-authorizations-message' | translate}}
                 <ul>
-                  <li *ngFor="let auth of (getMissingOrcidAuthorizations() | async)" data-test="missingOrcidAuthorization">
+                  <li *ngFor="let auth of profileAuthorizationScopes$ | async" data-test="missingOrcidAuthorization">
                     {{getAuthorizationDescription(auth) | translate }}
                   </li>
                 </ul>
@@ -41,11 +41,11 @@
         </div>
       </div>
     </div>
-    <ds-alert *ngIf="(onlyAdminCanDisconnectProfileFromOrcid() | async) && !(ownerCanDisconnectProfileFromOrcid() | async)"
+    <ds-alert *ngIf="(onlyAdminCanDisconnectProfileFromOrcid$ | async) && !(ownerCanDisconnectProfileFromOrcid$ | async)"
-              [type]="'alert-warning'" data-test="unlinkOnlyAdmin">
+              [type]="AlertType.Warning" data-test="unlinkOnlyAdmin">
       {{ 'person.page.orcid.remove-orcid-message' | translate}}
     </ds-alert>
-    <div class="row" *ngIf="(ownerCanDisconnectProfileFromOrcid() | async)" data-test="unlinkOwner">
+    <div class="row" *ngIf="(ownerCanDisconnectProfileFromOrcid$ | async)" data-test="unlinkOwner">
       <div class="col">
         <button type="submit" class="btn btn-danger float-right" (click)="unlinkOrcid()"
                 [dsBtnDisabled]="(unlinkProcessing | async)">
@@ -54,7 +54,7 @@
           <span *ngIf="(unlinkProcessing | async)"><i
             class='fas fa-circle-notch fa-spin'></i> {{'person.page.orcid.unlink.processing' | translate}}</span>
         </button>
-        <button *ngIf="(hasMissingOrcidAuthorizations() | async)" type="submit"
+        <button *ngIf="(hasMissingOrcidAuthorizations$ | async)" type="submit"
                 class="btn btn-primary float-right" (click)="linkOrcid()">
           <span><i class="fas fa-check"></i> {{ 'person.page.orcid.grant-authorizations' | translate }}</span>
         </button>
@@ -68,7 +68,7 @@
     <div class="row">
       <div class="col-2"><img alt="orcid-logo" src="../../../../assets/images/orcid.logo.icon.svg"/></div>
       <div class="col">
-        <ds-alert [type]="'alert-info'">{{ getOrcidNotLinkedMessage() | async }}</ds-alert>
+        <ds-alert [type]="AlertType.Info">{{ getOrcidNotLinkedMessage() }}</ds-alert>
       </div>
     </div>
     <div class="row">

src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.ts

@@ -12,6 +12,7 @@ import { getFirstCompletedRemoteData } from '../../../core/shared/operators';
 import { OrcidAuthService } from '../../../core/orcid/orcid-auth.service';
 import { createFailedRemoteDataObject } from '../../../shared/remote-data.utils';
 import { HttpErrorResponse } from '@angular/common/http';
+import { AlertType } from '../../../shared/alert/alert-type';
 
 @Component({
   selector: 'ds-orcid-auth',
@@ -28,43 +29,49 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
   /**
    * The list of exposed orcid authorization scopes for the orcid profile
    */
-  profileAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  profileAuthorizationScopes$: BehaviorSubject<string[]> = new BehaviorSubject([]);
+
+  hasOrcidAuthorizations$: Observable<boolean>;
 
   /**
    * The list of all orcid authorization scopes missing in the orcid profile
    */
-  missingAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  missingAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject([]);
+
+  hasMissingOrcidAuthorizations$: Observable<boolean>;
 
   /**
    * The list of all orcid authorization scopes available
    */
-  orcidAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  orcidAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject([]);
 
   /**
    * A boolean representing if unlink operation is processing
    */
-  unlinkProcessing: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  unlinkProcessing: BehaviorSubject<boolean> = new BehaviorSubject(false);
 
   /**
    * A boolean representing if orcid profile is linked
    */
-  private isOrcidLinked$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  isOrcidLinked$: BehaviorSubject<boolean> = new BehaviorSubject(false);
 
   /**
    * A boolean representing if only admin can disconnect orcid profile
    */
-  private onlyAdminCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  onlyAdminCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject(false);
 
   /**
    * A boolean representing if owner can disconnect orcid profile
    */
-  private ownerCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  ownerCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject(false);
 
   /**
    * An event emitted when orcid profile is unliked successfully
    */
   @Output() unlink: EventEmitter<void> = new EventEmitter<void>();
 
+  readonly AlertType = AlertType;
+
   constructor(
     private orcidAuthService: OrcidAuthService,
     private translateService: TranslateService,
@@ -78,6 +85,8 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
       this.orcidAuthorizationScopes.next(scopes);
       this.initOrcidAuthSettings();
     });
+    this.hasOrcidAuthorizations$ = this.hasOrcidAuthorizations();
+    this.hasMissingOrcidAuthorizations$ = this.hasMissingOrcidAuthorizations();
   }
 
   ngOnChanges(changes: SimpleChanges): void {
@@ -90,18 +99,11 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
    * Check if the list of exposed orcid authorization scopes for the orcid profile has values
    */
   hasOrcidAuthorizations(): Observable<boolean> {
-    return this.profileAuthorizationScopes.asObservable().pipe(
+    return this.profileAuthorizationScopes$.pipe(
       map((scopes: string[]) => scopes.length > 0)
     );
   }
 
-  /**
-   * Return the list of exposed orcid authorization scopes for the orcid profile
-   */
-  getOrcidAuthorizations(): Observable<string[]> {
-    return this.profileAuthorizationScopes.asObservable();
-  }
-
   /**
    * Check if the list of exposed orcid authorization scopes for the orcid profile has values
    */
@@ -111,26 +113,12 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
     );
   }
 
-  /**
+  getOrcidNotLinkedMessage(): string {
-   * Return the list of exposed orcid authorization scopes for the orcid profile
-   */
-  getMissingOrcidAuthorizations(): Observable<string[]> {
-    return this.profileAuthorizationScopes.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if orcid profile is linked
-   */
-  isLinkedToOrcid(): Observable<boolean> {
-    return this.isOrcidLinked$.asObservable();
-  }
-
-  getOrcidNotLinkedMessage(): Observable<string> {
     const orcid = this.item.firstMetadataValue('person.identifier.orcid');
     if (orcid) {
-      return this.translateService.get('person.page.orcid.orcid-not-linked-message', { 'orcid': orcid });
+      return this.translateService.instant('person.page.orcid.orcid-not-linked-message', { 'orcid': orcid });
     } else {
-      return this.translateService.get('person.page.orcid.no-orcid-message');
+      return this.translateService.instant('person.page.orcid.no-orcid-message');
     }
   }
 
@@ -143,13 +131,6 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
     return 'person.page.orcid.scope.' + scope.substring(1).replace('/', '-');
   }
 
-  /**
-   * Return a boolean representing if only admin can disconnect orcid profile
-   */
-  onlyAdminCanDisconnectProfileFromOrcid(): Observable<boolean> {
-    return this.onlyAdminCanDisconnectProfileFromOrcid$.asObservable();
-  }
-
   /**
    * Return a boolean representing if owner can disconnect orcid profile
    */
@@ -215,7 +196,7 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
   }
 
   private setOrcidAuthorizationsFromItem(): void {
-    this.profileAuthorizationScopes.next(this.orcidAuthService.getOrcidAuthorizationScopesByItem(this.item));
+    this.profileAuthorizationScopes$.next(this.orcidAuthService.getOrcidAuthorizationScopesByItem(this.item));
   }
 
 }

src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.html

@@ -3,13 +3,13 @@
   <div class="container">
     <h2>{{ 'person.orcid.registry.queue' | translate }}</h2>
 
-    <ds-alert *ngIf="!(processing$ | async) && (getList() | async)?.payload?.totalElements == 0"
+    <ds-alert *ngIf="!(processing$ | async) && (list$ | async)?.payload?.totalElements == 0"
               [type]="AlertTypeEnum.Info">
       {{ 'person.page.orcid.sync-queue.empty-message' | translate}}
     </ds-alert>
-    <ds-pagination *ngIf="!(processing$ | async) && (getList() | async)?.payload?.totalElements > 0"
+    <ds-pagination *ngIf="!(processing$ | async) && (list$ | async)?.payload?.totalElements > 0"
                    [paginationOptions]="paginationOptions"
-                   [collectionSize]="(getList() | async)?.payload?.totalElements"
+                   [collectionSize]="(list$ | async)?.payload?.totalElements"
                    [retainScrollPosition]="false" [hideGear]="true" (paginationChange)="updateList()">
 
       <div class="table-responsive">
@@ -22,7 +22,7 @@
           </tr>
           </thead>
           <tbody>
-          <tr *ngFor="let entry of (getList() | async)?.payload?.page" data-test="orcidQueueElementRow">
+          <tr *ngFor="let entry of (list$ | async)?.payload?.page" data-test="orcidQueueElementRow">
             <td style="width: 15%" class="text-center align-middle">
               <i [ngClass]="getIconClass(entry)" [ngbTooltip]="getIconTooltip(entry) | translate"
                  class="fa-2x" aria-hidden="true"></i>

src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.ts

@@ -47,13 +47,12 @@ export class OrcidQueueComponent implements OnInit, OnDestroy {
   /**
    * A list of orcid queue records
    */
-  private list$: BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>> = new BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>>({} as any);
+  list$: BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>> = new BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>>({} as any);
 
   /**
    * The AlertType enumeration
-   * @type {AlertType}
    */
-  AlertTypeEnum = AlertType;
+  readonly AlertTypeEnum = AlertType;
 
   /**
    * Array to track all subscriptions and unsubscribe them onDestroy
@@ -99,13 +98,6 @@ export class OrcidQueueComponent implements OnInit, OnDestroy {
     );
   }
 
-  /**
-   * Return the list of orcid queue records
-   */
-  getList(): Observable<RemoteData<PaginatedList<OrcidQueue>>> {
-    return this.list$.asObservable();
-  }
-
   /**
    * Return the icon class for the queue object type
    *

src/app/navbar/navbar.component.html

@@ -1,5 +1,5 @@
 <nav [ngClass]="{'open': !(menuCollapsed | async)}"
-     [@slideMobileNav]="!(windowService.isXsOrSm() | async) ? 'default' : ((menuCollapsed | async) ? 'collapsed' : 'expanded')"
+     [@slideMobileNav]="(isMobile$ | async) !== true ? 'default' : ((menuCollapsed | async) ? 'collapsed' : 'expanded')"
      class="navbar navbar-light navbar-expand-md px-md-0 pt-md-0 pt-3 navbar-container" role="navigation"
      [attr.aria-label]="'nav.main.description' | translate" id="main-navbar">
   <!-- TODO remove navbar-container class when https://github.com/twbs/bootstrap/issues/24726 is fixed -->

src/app/process-page/overview/process-overview.component.html

@@ -71,16 +71,16 @@
         </div>
 
         <div class="modal-body">
-            <div *ngIf="!(processBulkDeleteService.isProcessing$() |async)">{{'process.overview.delete.body' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</div>
+            <div *ngIf="(isProcessing$ | async) !== true">{{'process.overview.delete.body' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</div>
-            <div *ngIf="processBulkDeleteService.isProcessing$() |async" class="alert alert-info">
+            <div *ngIf="(isProcessing$ | async) === true" class="alert alert-info">
                 <span class="spinner-border spinner-border-sm spinner-button" role="status" aria-hidden="true"></span>
                 <span> {{ 'process.overview.delete.processing' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</span>
             </div>
             <div class="mt-4">
-                <button class="btn btn-primary mr-2" [dsBtnDisabled]="processBulkDeleteService.isProcessing$() |async"
+                <button class="btn btn-primary mr-2" [dsBtnDisabled]="(isProcessing$ | async) === true"
                         (click)="closeModal()">{{'process.detail.delete.cancel' | translate}}</button>
                 <button id="delete-confirm" class="btn btn-danger"
-                        [dsBtnDisabled]="processBulkDeleteService.isProcessing$() |async"
+                        [dsBtnDisabled]="(isProcessing$ | async) === true"
                         (click)="deleteSelected()">{{ 'process.overview.delete' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()}  }}
                 </button>
             </div>

src/app/process-page/overview/process-overview.component.ts

@@ -51,11 +51,12 @@ export class ProcessOverviewComponent implements OnInit, OnDestroy {
    */
   dateFormat = 'yyyy-MM-dd HH:mm:ss';
 
-  processesToDelete: string[] = [];
   private modalRef: any;
 
   isProcessingSub: Subscription;
 
+  isProcessing$: Observable<boolean>;
+
   constructor(protected processService: ProcessDataService,
               protected paginationService: PaginationService,
               protected ePersonService: EPersonDataService,
@@ -69,6 +70,7 @@ export class ProcessOverviewComponent implements OnInit, OnDestroy {
   ngOnInit(): void {
     this.setProcesses();
     this.processBulkDeleteService.clearAllProcesses();
+    this.isProcessing$ = this.processBulkDeleteService.isProcessing$();
   }
 
   /**

src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.html

@@ -13,12 +13,12 @@
     <p>{{'researcher.profile.not.associated' | translate}}</p>
   </div>
   <button *ngIf="!researcherProfile" class="btn btn-primary mr-2"
-          [dsBtnDisabled]="(isProcessingCreate() | async)"
+          [dsBtnDisabled]="(processingCreate$ | async) === true"
           (click)="createProfile()">
-    <span *ngIf="(isProcessingCreate() | async)">
+    <span *ngIf="(processingCreate$ | async) === true">
         <i class='fas fa-circle-notch fa-spin'></i> {{'researcher.profile.action.processing' | translate}}
     </span>
-    <span *ngIf="!(isProcessingCreate() | async)">
+    <span *ngIf="(processingCreate$ | async) !== true">
         <i class="fas fa-plus"></i> &nbsp;{{'researcher.profile.create.new' | translate}}
     </span>
   </button>
@@ -27,10 +27,10 @@
       <i class="fas fa-info-circle"></i> {{'researcher.profile.view' | translate}}
     </button>
     <button class="btn btn-danger" [dsBtnDisabled]="!researcherProfile" (click)="deleteProfile(researcherProfile)">
-        <span *ngIf="(isProcessingDelete() | async)">
+        <span *ngIf="(processingDelete$ | async) === true">
             <i class='fas fa-circle-notch fa-spin'></i> {{'researcher.profile.action.processing' | translate}}
         </span>
-        <span *ngIf="!(isProcessingDelete() | async)">
+        <span *ngIf="(processingDelete$ | async) !== true">
             <i class="fas fa-trash-alt"></i> &nbsp;{{'researcher.profile.delete' | translate}}
         </span>
     </button>

src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.ts

@@ -3,7 +3,7 @@ import { Router } from '@angular/router';
 
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
 import { TranslateService } from '@ngx-translate/core';
-import { BehaviorSubject, Observable } from 'rxjs';
+import { BehaviorSubject } from 'rxjs';
 import { map, mergeMap, switchMap, take, tap } from 'rxjs/operators';
 
 import { getFirstCompletedRemoteData, getFirstSucceededRemoteDataPayload } from '../../core/shared/operators';
@@ -157,24 +157,6 @@ export class ProfilePageResearcherFormComponent implements OnInit {
     });
   }
 
-  /**
-   * Return a boolean representing if a delete operation is pending.
-   *
-   * @return {Observable<boolean>}
-   */
-  isProcessingDelete(): Observable<boolean> {
-    return this.processingDelete$.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if a create operation is pending.
-   *
-   * @return {Observable<boolean>}
-   */
-  isProcessingCreate(): Observable<boolean> {
-    return this.processingCreate$.asObservable();
-  }
-
   /**
    * Create a new profile related to the current user from scratch.
    */

src/app/register-email-form/register-email-form.component.html

@@ -44,13 +44,13 @@
       <p class="m-0"><a href="javascript:void(0);" (click)="this.klaroService.showSettings()">{{ MESSAGE_PREFIX + '.google-recaptcha.open-cookie-settings' | translate }}</a></p>
     </ds-alert>
 
-    <div class="my-3" *ngIf="isRecaptchaCookieAccepted() && (googleRecaptchaService.captchaVersion() | async) === 'v2'">
+    <div class="my-3" *ngIf="isRecaptchaCookieAccepted() && (captchaVersion$ | async) === 'v2'">
-      <ds-google-recaptcha [captchaMode]="(googleRecaptchaService.captchaMode() | async)"
+      <ds-google-recaptcha [captchaMode]="(captchaMode$ | async)"
                            (executeRecaptcha)="register($event)" (checkboxChecked)="onCheckboxChecked($event)"
                            (showNotification)="showNotification($event)"></ds-google-recaptcha>
     </div>
 
-    <ng-container *ngIf="!((googleRecaptchaService.captchaVersion() | async) === 'v2' && (googleRecaptchaService.captchaMode() | async) === 'invisible'); else v2Invisible">
+    <ng-container *ngIf="!((captchaVersion$ | async) === 'v2' && (captchaMode$ | async) === 'invisible'); else v2Invisible">
       <button class="btn btn-primary" [dsBtnDisabled]="form.invalid || registrationVerification && !isRecaptchaCookieAccepted() || disableUntilChecked" (click)="register()">
         {{ MESSAGE_PREFIX + '.submit' | translate }}
       </button>

src/app/register-email-form/register-email-form.component.ts

@@ -66,13 +66,9 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
 
   subscriptions: Subscription[] = [];
 
-  captchaVersion(): Observable<string> {
+  captchaVersion$: Observable<string>;
-    return this.googleRecaptchaService.captchaVersion();
-  }
 
-  captchaMode(): Observable<string> {
+  captchaMode$: Observable<string>;
-    return this.googleRecaptchaService.captchaMode();
-  }
 
   constructor(
     private epersonRegistrationService: EpersonRegistrationService,
@@ -94,6 +90,8 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
   }
 
   ngOnInit(): void {
+    this.captchaVersion$ = this.googleRecaptchaService.captchaVersion();
+    this.captchaMode$ = this.googleRecaptchaService.captchaMode();
     const validators: ValidatorFn[] = [
       Validators.required,
       Validators.email,
@@ -150,7 +148,7 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
   register(tokenV2?) {
     if (!this.form.invalid) {
       if (this.registrationVerification) {
-        this.subscriptions.push(combineLatest([this.captchaVersion(), this.captchaMode()]).pipe(
+        this.subscriptions.push(combineLatest([this.captchaVersion$, this.captchaMode$]).pipe(
           switchMap(([captchaVersion, captchaMode])  => {
             if (captchaVersion === 'v3') {
               return this.googleRecaptchaService.getRecaptchaToken('register_email');
@@ -213,7 +211,7 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
    */
   disableUntilCheckedFcn(): Observable<boolean> {
     const checked$ = this.checkboxCheckedSubject$.asObservable();
-    return combineLatest([this.captchaVersion(), this.captchaMode(), checked$]).pipe(
+    return combineLatest([this.captchaVersion$, this.captchaMode$, checked$]).pipe(
       // disable if checkbox is not checked or if reCaptcha is not in v2 checkbox mode
       switchMap(([captchaVersion, captchaMode, checked])  => captchaVersion === 'v2' && captchaMode === 'checkbox' ? of(!checked) : of(false)),
       startWith(true),

src/app/shared/eperson-group-list/eperson-group-list.component.html

@@ -2,35 +2,36 @@
   <ds-eperson-search-box *ngIf="isListOfEPerson" (search)="onSearch($event)"></ds-eperson-search-box>
   <ds-group-search-box *ngIf="!isListOfEPerson" (search)="onSearch($event)"></ds-group-search-box>
 
-  <ds-pagination *ngIf="(getList() | async)?.payload?.totalElements > 0"
+  <ng-container *ngIf="(list$ | async) as list">
-                 [paginationOptions]="paginationOptions"
+    <ds-pagination *ngIf="list.totalElements > 0"
-                 [collectionSize]="(getList() | async)?.payload?.totalElements"
+                   [paginationOptions]="paginationOptions"
-                 [retainScrollPosition]="true"
+                   [collectionSize]="list.totalElements"
-                 [hideGear]="true">
+                   [retainScrollPosition]="true"
+                   [hideGear]="true">
 
-    <div class="table-responsive">
+      <div class="table-responsive">
-      <table id="groups" class="table table-sm table-striped table-hover table-bordered">
+        <table id="groups" class="table table-sm table-striped table-hover table-bordered">
-        <thead>
+          <thead>
-        <tr class="text-center">
+          <tr class="text-center">
-          <th>{{'resource-policies.form.eperson-group-list.table.headers.id' | translate}}</th>
+            <th>{{ 'resource-policies.form.eperson-group-list.table.headers.id' | translate }}</th>
-          <th>{{'resource-policies.form.eperson-group-list.table.headers.name' | translate}}</th>
+            <th>{{ 'resource-policies.form.eperson-group-list.table.headers.name' | translate }}</th>
-          <th>{{'resource-policies.form.eperson-group-list.table.headers.action' | translate}}</th>
+            <th>{{ 'resource-policies.form.eperson-group-list.table.headers.action' | translate }}</th>
-        </tr>
+          </tr>
-        </thead>
+          </thead>
-        <tbody>
+          <tbody>
-        <tr *ngFor="let entry of (getList() | async)?.payload?.page"
+          <tr *ngFor="let entry of list.page"
-            [class.table-primary]="isSelected(entry) | async">
+              [class.table-primary]="(entrySelectedId$ | async) === entry.id">
-          <td>{{entry.id}}</td>
+            <td>{{ entry.id }}</td>
-          <td>{{dsoNameService.getName(entry)}}</td>
+            <td>{{ dsoNameService.getName(entry) }}</td>
-          <td class="text-center">
+            <td class="text-center">
-            <button class="btn btn-sm btn-outline-primary" (click)="emitSelect(entry)">
+              <button class="btn btn-sm btn-outline-primary" (click)="emitSelect(entry)">
-              {{'resource-policies.form.eperson-group-list.select.btn' | translate}}
+                {{ 'resource-policies.form.eperson-group-list.select.btn' | translate }}
-            </button>
+              </button>
-          </td>
+            </td>
-        </tr>
+          </tr>
-        </tbody>
+          </tbody>
-      </table>
+        </table>
-    </div>
+      </div>
-
+    </ds-pagination>
-  </ds-pagination>
+  </ng-container>
 </div>

src/app/shared/eperson-group-list/eperson-group-list.component.spec.ts

@@ -3,7 +3,7 @@ import { ChangeDetectorRef, Component, Injector, NO_ERRORS_SCHEMA } from '@angul
 
 import { of as observableOf } from 'rxjs';
 import { TranslateModule } from '@ngx-translate/core';
-import { cold } from 'jasmine-marbles';
+import { hot } from 'jasmine-marbles';
 import uniqueId from 'lodash/uniqueId';
 
 import { createSuccessfulRemoteDataObject } from '../remote-data.utils';
@@ -22,14 +22,13 @@ import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { PaginationService } from '../../core/pagination/pagination.service';
 import { PaginationServiceStub } from '../testing/pagination-service.stub';
 
-describe('EpersonGroupListComponent test suite', () => {
+describe('EpersonGroupListComponent', () => {
   let comp: EpersonGroupListComponent;
   let compAsAny: any;
   let fixture: ComponentFixture<EpersonGroupListComponent>;
-  let de;
   let groupService: any;
   let epersonService: any;
-  let paginationService;
+  let paginationService: PaginationServiceStub;
 
   const paginationOptions: PaginationComponentOptions = new PaginationComponentOptions();
   paginationOptions.id = uniqueId('eperson-group-list-pagination-test');
@@ -91,7 +90,6 @@ describe('EpersonGroupListComponent test suite', () => {
   }));
 
   describe('', () => {
-    let testComp: TestComponent;
     let testFixture: ComponentFixture<TestComponent>;
 
     // synchronous beforeEach
@@ -101,7 +99,6 @@ describe('EpersonGroupListComponent test suite', () => {
         <ds-eperson-group-list [isListOfEPerson]="isListOfEPerson" [initSelected]="initSelected"></ds-eperson-group-list>`;
 
       testFixture = createTestComponent(html, TestComponent) as ComponentFixture<TestComponent>;
-      testComp = testFixture.componentInstance;
     });
 
     afterEach(() => {
@@ -129,7 +126,6 @@ describe('EpersonGroupListComponent test suite', () => {
     afterEach(() => {
       comp = null;
       compAsAny = null;
-      de = null;
       fixture.destroy();
     });
 
@@ -147,16 +143,15 @@ describe('EpersonGroupListComponent test suite', () => {
 
       fixture.detectChanges();
 
-      expect(compAsAny.entrySelectedId.value).toBe(EPersonMock.id);
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
     });
 
     it('should init the list of eperson', () => {
       epersonService.searchByScope.and.returnValue(observableOf(epersonPaginatedListRD));
       fixture.detectChanges();
 
-      expect(compAsAny.list$.value).toEqual(epersonPaginatedListRD);
+      expect(comp.list$).toBeObservable(hot('(a|)', {
-      expect(comp.getList()).toBeObservable(cold('a', {
+        a: epersonPaginatedList,
-        a: epersonPaginatedListRD
       }));
     });
 
@@ -165,23 +160,13 @@ describe('EpersonGroupListComponent test suite', () => {
       comp.emitSelect(EPersonMock);
 
       expect(comp.select.emit).toHaveBeenCalled();
-      expect(compAsAny.entrySelectedId.value).toBe(EPersonMock.id);
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
     });
 
-    it('should return true when entry is selected', () => {
+    it('should return the entrySelectedId$ value', () => {
-      compAsAny.entrySelectedId.next(EPersonMock.id);
+      comp.entrySelectedId$.next(EPersonMock.id);
 
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
-        a: true
-      }));
-    });
-
-    it('should return false when entry is not selected', () => {
-      compAsAny.entrySelectedId.next('');
-
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: false
-      }));
     });
   });
 
@@ -199,7 +184,6 @@ describe('EpersonGroupListComponent test suite', () => {
     afterEach(() => {
       comp = null;
       compAsAny = null;
-      de = null;
       fixture.destroy();
     });
 
@@ -217,16 +201,15 @@ describe('EpersonGroupListComponent test suite', () => {
 
       fixture.detectChanges();
 
-      expect(compAsAny.entrySelectedId.value).toBe(GroupMock.id);
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
     });
 
     it('should init the list of group', () => {
       groupService.searchGroups.and.returnValue(observableOf(groupPaginatedListRD));
       fixture.detectChanges();
 
-      expect(compAsAny.list$.value).toEqual(groupPaginatedListRD);
+      expect(comp.list$).toBeObservable(hot('(a|)', {
-      expect(comp.getList()).toBeObservable(cold('a', {
+        a: groupPaginatedList,
-        a: groupPaginatedListRD
       }));
     });
 
@@ -235,27 +218,16 @@ describe('EpersonGroupListComponent test suite', () => {
       comp.emitSelect(GroupMock);
 
       expect(comp.select.emit).toHaveBeenCalled();
-      expect(compAsAny.entrySelectedId.value).toBe(GroupMock.id);
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
     });
 
-    it('should return true when entry is selected', () => {
+    it('should return the entrySelectedId$ value', () => {
-      compAsAny.entrySelectedId.next(EPersonMock.id);
+      comp.entrySelectedId$.next(GroupMock.id);
 
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
-        a: true
-      }));
-    });
-
-    it('should return false when entry is not selected', () => {
-      compAsAny.entrySelectedId.next('');
-
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: false
-      }));
     });
 
     it('should update list on search triggered', () => {
-      const options: PaginationComponentOptions = comp.paginationOptions;
       const event: SearchEvent = {
         scope: 'metadata',
         query: 'test'
@@ -263,7 +235,7 @@ describe('EpersonGroupListComponent test suite', () => {
       spyOn(comp, 'updateList');
       comp.onSearch(event);
 
-      expect(compAsAny.updateList).toHaveBeenCalledWith('metadata', 'test');
+      expect(comp.updateList).toHaveBeenCalledWith('metadata', 'test');
     });
   });
 });

src/app/shared/eperson-group-list/eperson-group-list.component.ts

@@ -1,14 +1,12 @@
 import { Component, EventEmitter, Injector, Input, OnDestroy, OnInit, Output } from '@angular/core';
 
-import { BehaviorSubject, Observable, Subscription } from 'rxjs';
+import { BehaviorSubject, Observable } from 'rxjs';
-import { map } from 'rxjs/operators';
+import { switchMap } from 'rxjs/operators';
 import uniqueId from 'lodash/uniqueId';
 
-import { RemoteData } from '../../core/data/remote-data';
 import { PaginatedList } from '../../core/data/paginated-list.model';
 import { DSpaceObject } from '../../core/shared/dspace-object.model';
 import { PaginationComponentOptions } from '../pagination/pagination-component-options.model';
-import { hasValue, isNotEmpty } from '../empty.util';
 import { DSONameService } from '../../core/breadcrumbs/dso-name.service';
 import { EPERSON } from '../../core/eperson/models/eperson.resource-type';
 import { GROUP } from '../../core/eperson/models/group.resource-type';
@@ -16,10 +14,12 @@ import { ResourceType } from '../../core/shared/resource-type';
 import { EPersonDataService } from '../../core/eperson/eperson-data.service';
 import { GroupDataService } from '../../core/eperson/group-data.service';
 import { fadeInOut } from '../animations/fade';
-import { getFirstCompletedRemoteData } from '../../core/shared/operators';
+import { getAllCompletedRemoteData, getRemoteDataPayload } from '../../core/shared/operators';
 import { PaginationService } from '../../core/pagination/pagination.service';
 import { FindListOptions } from '../../core/data/find-list-options.model';
 import { getDataServiceFor } from '../../core/data/base/data-service.decorator';
+import { EPerson } from '../../core/eperson/models/eperson.model';
+import { Group } from '../../core/eperson/models/group.model';
 
 export interface SearchEvent {
   scope: string;
@@ -79,21 +79,13 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
   /**
    * A list of eperson or group
    */
-  private list$: BehaviorSubject<RemoteData<PaginatedList<DSpaceObject>>> = new BehaviorSubject<RemoteData<PaginatedList<DSpaceObject>>>({} as any);
+  list$: Observable<PaginatedList<EPerson | Group>>;
 
   /**
    * The eperson or group's id selected
    * @type {string}
    */
-  private entrySelectedId: BehaviorSubject<string> = new BehaviorSubject<string>('');
+  entrySelectedId$: BehaviorSubject<string> = new BehaviorSubject('');
-
-  /**
-   * Array to track all subscriptions and unsubscribe them onDestroy
-   * @type {Array}
-   */
-  private subs: Subscription[] = [];
-
-  private pageConfigSub: Subscription;
 
   /**
    * Initialize instance variables and inject the properly DataService
@@ -119,7 +111,7 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
     this.paginationOptions.pageSize = 5;
 
     if (this.initSelected) {
-      this.entrySelectedId.next(this.initSelected);
+      this.entrySelectedId$.next(this.initSelected);
     }
 
     this.updateList(this.currentSearchScope, this.currentSearchQuery);
@@ -133,28 +125,9 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
    */
   emitSelect(entry: DSpaceObject): void {
     this.select.emit(entry);
-    this.entrySelectedId.next(entry.id);
+    this.entrySelectedId$.next(entry.id);
   }
 
-  /**
-   * Return the list of eperson or group
-   */
-  getList(): Observable<RemoteData<PaginatedList<DSpaceObject>>> {
-    return this.list$.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if a table row is selected
-   *
-   * @return {boolean}
-   */
-  isSelected(entry: DSpaceObject): Observable<boolean> {
-    return this.entrySelectedId.asObservable().pipe(
-      map((selectedId) => isNotEmpty(selectedId) && selectedId === entry.id)
-    );
-  }
-
-
   /**
    * Method called on search
    */
@@ -169,38 +142,26 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
    * Retrieve a paginate list of eperson or group
    */
   updateList(scope: string, query: string): void {
-    if (hasValue(this.pageConfigSub)) {
+    this.list$ = this.paginationService.getCurrentPagination(this.paginationOptions.id, this.paginationOptions).pipe(
-      this.pageConfigSub.unsubscribe();
+      switchMap((paginationOptions) => {
-    }
+        const options: FindListOptions = Object.assign(new FindListOptions(), {
-    this.pageConfigSub = this.paginationService.getCurrentPagination(this.paginationOptions.id, this.paginationOptions)
-      .subscribe((paginationOptions) => {
-    const options: FindListOptions = Object.assign({}, new FindListOptions(), {
           elementsPerPage: paginationOptions.pageSize,
-          currentPage: paginationOptions.currentPage
+          currentPage: paginationOptions.currentPage,
-    });
+        });
 
-    const search$: Observable<RemoteData<PaginatedList<DSpaceObject>>> = this.isListOfEPerson ?
+        return this.isListOfEPerson ?
-      (this.dataService as EPersonDataService).searchByScope(scope, query, options) :
+          (this.dataService as EPersonDataService).searchByScope(scope, query, options) :
-      (this.dataService as GroupDataService).searchGroups(query, options);
+          (this.dataService as GroupDataService).searchGroups(query, options);
-
+      }),
-    this.subs.push(search$.pipe(getFirstCompletedRemoteData())
+      getAllCompletedRemoteData(),
-      .subscribe((list: RemoteData<PaginatedList<DSpaceObject>>) => {
+      getRemoteDataPayload(),
-        if (hasValue(this.list$)) {
-          this.list$.next(list);
-        }
-      })
     );
-      });
   }
 
   /**
    * Unsubscribe from all subscriptions
    */
   ngOnDestroy(): void {
-    this.list$ = null;
-    this.subs
-      .filter((subscription) => hasValue(subscription))
-      .forEach((subscription) => subscription.unsubscribe());
     this.paginationService.clearPagination(this.paginationOptions.id);
   }
 

src/app/shared/host-window.service.ts

@@ -137,10 +137,10 @@ export class HostWindowService {
   }
 
   isXsOrSm(): Observable<boolean> {
-    return observableCombineLatest(
+    return observableCombineLatest([
       this.isXs(),
       this.isSm()
-    ).pipe(
+    ]).pipe(
       map(([isXs, isSm]) => isXs || isSm),
       distinctUntilChanged()
     );

src/app/shared/pagination/pagination.component.html

@@ -37,7 +37,7 @@
   </div>
   <ng-content></ng-content>
 
-  <div *ngIf="shouldShowBottomPager | async">
+  <div *ngIf="showBottomPager$ | async">
     <div *ngIf="showPaginator" class="pagination justify-content-center clearfix bottom">
       <ngb-pagination [attr.aria-label]="('pagination-control.page-number-bar' | translate) + paginationOptions.id"
                       [boundaryLinks]="paginationOptions.boundaryLinks"

src/app/shared/pagination/pagination.component.ts

@@ -184,6 +184,11 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {
 
   public showingDetails$: Observable<PaginationDetails>;
 
+  /**
+   * Whether the current pagination should show a bottom pages
+   */
+  showBottomPager$: Observable<boolean>;
+
   /**
    * Array to track all subscriptions and unsubscribe them onDestroy
    * @type {Array}
@@ -213,7 +218,7 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {
   }
 
   ngOnChanges(changes: SimpleChanges): void {
-    if (changes.collectionSize.currentValue !== changes.collectionSize.previousValue) {
+    if (hasValue(changes.collectionSize)) {
       this.showingDetails$ = this.getShowingDetails(this.collectionSize);
     }
   }
@@ -253,6 +258,7 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {
       this.sortField$ = this.paginationService.getCurrentSort(this.id, sortOptions).pipe(
         map((currentSort) => currentSort.field)
       );
+    this.showBottomPager$ = this.shouldShowBottomPager;
   }
 
   constructor(

src/app/shared/resource-policies/create/resource-policy-create.component.html

@@ -1,5 +1,5 @@
 <div class="container">
-  <h4 class="mb-3">{{'resource-policies.create.page.heading' | translate}} {{targetResourceName}}</h4>
+  <h1 class="mb-3">{{'resource-policies.create.page.heading' | translate}} {{targetResourceName}}</h1>
 
   <ds-resource-policy-form [isProcessing]="isProcessing()"
                            (reset)="redirectToAuthorizationsPage()"

src/app/shared/theme-support/themed.component.ts

@@ -82,6 +82,9 @@ export abstract class ThemedComponent<T> implements AfterViewInit, OnDestroy, On
   }
 
   initComponentInstance(changes?: SimpleChanges) {
+    if (hasValue(this.themeSub)) {
+      this.themeSub.unsubscribe();
+    }
     this.themeSub = this.themeService?.getThemeName$().subscribe(() => {
       this.renderComponentInstance(changes);
     });

src/app/submission/form/section-add/submission-form-section-add.component.html

@@ -2,11 +2,11 @@
      #sectionAdd="ngbDropdown"
      placement="bottom-right"
      class="d-inline-block"
-     [ngClass]="{'w-100': windowService.isXs()}">
+     [ngClass]="{'w-100': isXs$}">
   <ng-container *ngIf="hasSections$ | async">
   <button class="btn btn-outline-primary dropdown-toggle"
           id="sectionControls"
-          [ngClass]="{'w-100': (windowService.isXs() | async)}"
+          [ngClass]="{'w-100': (isXs$ | async)}"
           ngbDropdownToggle>
           {{ 'submission.sections.general.add-more' | translate }} <i class="fa fa-plus" aria-hidden="true"></i>
   </button>
@@ -14,7 +14,7 @@
   <div ngbDropdownMenu
        class="sections-dropdown-menu"
        aria-labelledby="sectionControls"
-       [ngClass]="{'w-100': (windowService.isXs() | async)}">
+       [ngClass]="{'w-100': (isXs$ | async)}">
     <button class="dropdown-item disabled" *ngIf="!(hasSections$ | async)">
       {{ 'submission.sections.general.no-sections' | translate }}
     </button>

src/app/submission/form/section-add/submission-form-section-add.component.ts

@@ -42,6 +42,11 @@ export class SubmissionFormSectionAddComponent implements OnInit {
    */
   public hasSections$: Observable<boolean>;
 
+  /**
+   * A boolean representing whether it's a small screen
+   */
+  isXs$: Observable<boolean>;
+
   /**
    * Initialize instance variables
    *
@@ -62,6 +67,7 @@ export class SubmissionFormSectionAddComponent implements OnInit {
     this.hasSections$ = this.sectionList$.pipe(
       map((list: SectionDataObject[]) => list.length > 0)
     );
+    this.isXs$ = this.windowService.isXs();
   }
 
   /**

src/app/submission/form/submission-form.component.html

@@ -1,5 +1,5 @@
 <div class="container-fluid">
-    <div *ngIf="!(isLoading() | async)" class="submission-form-header mb-3 d-flex flex-wrap position-sticky">
+    <div *ngIf="(isLoading$ | async) !== true" class="submission-form-header mb-3 d-flex flex-wrap position-sticky">
         <div *ngIf="(uploadEnabled$ | async)" class="w-100">
             <ds-submission-upload-files [submissionId]="submissionId"
                                         [collectionId]="collectionId"
@@ -26,14 +26,14 @@
     </div>
 
     <div class="submission-form-content">
-        <ds-themed-loading *ngIf="(isLoading() | async)" message="Loading..."></ds-themed-loading>
+        <ds-themed-loading *ngIf="(isLoading$ | async) === true" [message]="'form.loading' | translate"></ds-themed-loading>
         <ng-container *ngFor="let object of (submissionSections | async)">
             <ds-submission-section-container [collectionId]="collectionId"
                                              [submissionId]="submissionId"
                                              [sectionData]="object"></ds-submission-section-container>
         </ng-container>
     </div>
-    <div *ngIf="!(isLoading() | async)" class="submission-form-footer mt-3 mb-3 position-sticky">
+    <div *ngIf="(isLoading$ | async) !== true" class="submission-form-footer mt-3 mb-3 position-sticky">
         <ds-submission-form-footer [submissionId]="submissionId"></ds-submission-form-footer>
     </div>
 </div>

src/app/submission/form/submission-form.component.spec.ts

@@ -1,4 +1,4 @@
-import { ChangeDetectorRef, Component, NO_ERRORS_SCHEMA, SimpleChange } from '@angular/core';
+import { ChangeDetectorRef, Component, SimpleChange } from '@angular/core';
 import { ComponentFixture, inject, TestBed, waitForAsync } from '@angular/core/testing';
 
 import { of as observableOf } from 'rxjs';
@@ -26,6 +26,7 @@ import { Item } from '../../core/shared/item.model';
 import { TestScheduler } from 'rxjs/testing';
 import { SectionsService } from '../sections/sections.service';
 import { VisibilityType } from '../sections/visibility-type';
+import { TranslateModule } from '@ngx-translate/core';
 
 describe('SubmissionFormComponent', () => {
 
@@ -47,7 +48,9 @@ describe('SubmissionFormComponent', () => {
 
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
-      imports: [],
+      imports: [
+        TranslateModule.forRoot(),
+      ],
       declarations: [
         SubmissionFormComponent,
         TestComponent
@@ -60,7 +63,6 @@ describe('SubmissionFormComponent', () => {
         ChangeDetectorRef,
         SubmissionFormComponent
       ],
-      schemas: [NO_ERRORS_SCHEMA]
     }).compileComponents();
   }));
 
@@ -117,7 +119,7 @@ describe('SubmissionFormComponent', () => {
       expect(compAsAny.submissionSections).toBeUndefined();
       expect(compAsAny.subs).toEqual([]);
       expect(submissionServiceStub.startAutoSave).not.toHaveBeenCalled();
-      expect(comp.loading).toBeObservable(cold('(a|)', { a: true }));
+      expect(comp.isLoading$).toBeObservable(cold('(a|)', { a: true }));
       done();
     });
 

src/app/submission/form/submission-form.component.ts

@@ -88,7 +88,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
    * A boolean representing if a submission form is pending
    * @type {Observable<boolean>}
    */
-  public loading: Observable<boolean> = observableOf(true);
+  public isLoading$: Observable<boolean> = observableOf(true);
 
   /**
    * Emits true when the submission config has bitstream uploading enabled in submission
@@ -160,7 +160,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
       this.uploadEnabled$ = this.sectionsService.isSectionTypeAvailable(this.submissionId, SectionsType.Upload);
 
       // check if is submission loading
-      this.loading = this.submissionService.getSubmissionObject(this.submissionId).pipe(
+      this.isLoading$ = this.submissionService.getSubmissionObject(this.submissionId).pipe(
         filter(() => this.isActive),
         map((submission: SubmissionObjectEntry) => submission.isLoading),
         map((isLoading: boolean) => isLoading),
@@ -266,13 +266,6 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
     }
   }
 
-  /**
-   * Check if submission form is loading
-   */
-  isLoading(): Observable<boolean> {
-    return this.loading;
-  }
-
   /**
    * Check if submission form is loading
    */

src/app/submission/sections/cc-license/submission-section-cc-licenses.component.html

@@ -120,28 +120,26 @@
 
 </ng-container>
 
-<ng-container *ngIf="getCcLicenseLink$()">
+<ng-container *ngIf="ccLicenseLink$ | async as licenseLink">
-  <ng-container *ngVar="getCcLicenseLink$() | async as licenseLink">
+  <div *ngIf="!licenseLink">
-    <div *ngIf="!licenseLink">
+    <ds-themed-loading></ds-themed-loading>
-      <ds-themed-loading></ds-themed-loading>
+  </div>
+  <div *ngIf="licenseLink"
+       class="mt-2 p-4 bg-light text-dark">
+    <div>
+      {{ 'submission.sections.ccLicense.link' | translate }}
     </div>
-    <div *ngIf="licenseLink"
+    <a class="license-link" href="{{ licenseLink }}" target="_blank" rel="noopener noreferrer">
-         class="mt-2 p-4 bg-light text-dark">
+      {{ licenseLink }}
-      <div>
+    </a>
-        {{ 'submission.sections.ccLicense.link' | translate }}
+    <div class="m-2">
-      </div>
+      <div (click)="setAccepted(!accepted)">
-      <a class="license-link" href="{{ licenseLink }}" target="_blank" rel="noopener noreferrer">
+        <input type="checkbox"
-        {{ licenseLink }}
+               class="mr-2"
-      </a>
+               title="accepted"
-      <div class="m-2">
+               [checked]="accepted">
-        <div (click)="setAccepted(!accepted)">
+        <span> {{ 'submission.sections.ccLicense.confirmation' | translate }}</span>
-          <input type="checkbox"
-                 class="mr-2"
-                 title="accepted"
-                 [checked]="accepted">
-          <span> {{ 'submission.sections.ccLicense.confirmation' | translate }}</span>
-        </div>
       </div>
     </div>
-  </ng-container>
+  </div>
 </ng-container>

src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts

@@ -1,4 +1,4 @@
-import { ChangeDetectorRef, Component, Inject } from '@angular/core';
+import { ChangeDetectorRef, Component, Inject, OnChanges, SimpleChanges, OnInit } from '@angular/core';
 import { Observable, of as observableOf, Subscription, tap } from 'rxjs';
 import { Field, Option, SubmissionCcLicence } from '../../../core/submission/models/submission-cc-license.model';
 import {
@@ -15,7 +15,7 @@ import { SectionDataObject } from '../models/section-data.model';
 import { SectionsService } from '../sections.service';
 import { WorkspaceitemSectionCcLicenseObject } from '../../../core/submission/models/workspaceitem-section-cc-license.model';
 import { JsonPatchOperationPathCombiner } from '../../../core/json-patch/builder/json-patch-operation-path-combiner';
-import { isNotEmpty } from '../../../shared/empty.util';
+import { isNotEmpty, hasValue, hasNoValue } from '../../../shared/empty.util';
 import { JsonPatchOperationsBuilder } from '../../../core/json-patch/builder/json-patch-operations-builder';
 import { SubmissionCcLicenseUrlDataService } from '../../../core/submission/submission-cc-license-url-data.service';
 import {ConfigurationDataService} from '../../../core/data/configuration-data.service';
@@ -30,7 +30,7 @@ import { FindListOptions } from '../../../core/data/find-list-options.model';
   styleUrls: ['./submission-section-cc-licenses.component.scss']
 })
 @renderSectionFor(SectionsType.CcLicense)
-export class SubmissionSectionCcLicensesComponent extends SectionModelComponent {
+export class SubmissionSectionCcLicensesComponent extends SectionModelComponent implements OnChanges, OnInit {
 
   /**
    * The form id
@@ -106,6 +106,8 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
     return this.data.accepted;
   }
 
+  ccLicenseLink$: Observable<string>;
+
   constructor(
     protected modalService: NgbModal,
     protected sectionService: SectionsService,
@@ -125,6 +127,19 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
     );
   }
 
+  ngOnInit(): void {
+    super.ngOnInit();
+    if (hasNoValue(this.ccLicenseLink$)) {
+      this.ccLicenseLink$ = this.getCcLicenseLink$();
+    }
+  }
+
+  ngOnChanges(changes: SimpleChanges): void {
+    if (hasValue(changes.sectionData) || hasValue(changes.submissionCcLicenses)) {
+      this.ccLicenseLink$ = this.getCcLicenseLink$();
+    }
+  }
+
   /**
    * The data of this section.
    */
@@ -149,6 +164,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
       },
       uri: undefined,
     });
+    this.ccLicenseLink$ = this.getCcLicenseLink$();
   }
 
   /**
@@ -180,6 +196,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
       },
       accepted: false,
     });
+    this.ccLicenseLink$ = this.getCcLicenseLink$();
   }
 
   /**

src/app/submission/sections/identifiers/section-identifiers.component.html

@@ -3,18 +3,17 @@ Template for the identifiers submission section component
 @author Kim Shepherd
 -->
 <!-- Main identifier data -->
-<ng-container *ngVar="(getIdentifierData() | async) as identifierData">
+<ng-container *ngIf="(identifierData$ | async) as identifierData">
-  <ng-container *ngIf="identifierData && identifierData.identifiers">
+  <div *ngIf="identifierData.identifiers">
-  <div>
+    <span>{{ 'submission.sections.identifiers.info' | translate }}</span>
-  <span>{{'submission.sections.identifiers.info' | translate}}</span>
+    <ul>
-  <ul>
+      <ng-container *ngFor="let identifier of identifierData.identifiers">
-    <ng-container *ngFor="let identifier of identifierData.identifiers">
+        <ng-container *ngIf="identifierData.displayTypes.includes(identifier.identifierType) && identifier.value">
-      <ng-container *ngIf="identifierData.displayTypes.includes(identifier.identifierType) && identifier.value">
+          <li>{{ 'submission.sections.identifiers.' + identifier.identifierType + '_label' | translate }}
-        <li>{{'submission.sections.identifiers.' + identifier.identifierType + '_label' | translate}}
+            {{ identifier.value }}
-          {{identifier.value}}</li>
+          </li>
+        </ng-container>
       </ng-container>
-    </ng-container>
+    </ul>
-  </ul>
+  </div>
- </div>
- </ng-container>
 </ng-container>

src/app/submission/sections/identifiers/section-identifiers.component.ts

@@ -1,13 +1,12 @@
 import {ChangeDetectionStrategy, Component, Inject } from '@angular/core';
 
-import { Observable, of as observableOf, Subscription } from 'rxjs';
+import { Observable, of as observableOf } from 'rxjs';
 import { TranslateService } from '@ngx-translate/core';
 import { SectionsType } from '../sections-type';
 import { SectionModelComponent } from '../models/section.model';
 import { renderSectionFor } from '../sections-decorator';
 import { SectionDataObject } from '../models/section-data.model';
 import { SubmissionService } from '../../submission.service';
-import { AlertType } from '../../../shared/alert/alert-type';
 import { SectionsService } from '../sections.service';
 import { WorkspaceitemSectionIdentifiersObject } from '../../../core/submission/models/workspaceitem-section-identifiers.model';
 
@@ -26,11 +25,6 @@ import { WorkspaceitemSectionIdentifiersObject } from '../../../core/submission/
 
 @renderSectionFor(SectionsType.Identifiers)
 export class SubmissionSectionIdentifiersComponent extends SectionModelComponent {
-  /**
-   * The Alert categories.
-   * @type {AlertType}
-   */
-  public AlertTypeEnum = AlertType;
 
   /**
    * Variable to track if the section is loading.
@@ -42,14 +36,7 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
    * Observable identifierData subject
    * @type {Observable<WorkspaceitemSectionIdentifiersObject>}
    */
-  public identifierData$: Observable<WorkspaceitemSectionIdentifiersObject> = new Observable<WorkspaceitemSectionIdentifiersObject>();
+  public identifierData$: Observable<WorkspaceitemSectionIdentifiersObject>;
-
-  /**
-   * Array to track all subscriptions and unsubscribe them onDestroy
-   * @type {Array}
-   */
-  protected subs: Subscription[] = [];
-  public subbedIdentifierData: WorkspaceitemSectionIdentifiersObject;
 
   /**
    * Initialize instance variables.
@@ -71,10 +58,6 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
     super(injectedCollectionId, injectedSectionData, injectedSubmissionId);
   }
 
-  ngOnInit() {
-      super.ngOnInit();
-  }
-
   /**
    * Initialize all instance variables and retrieve configuration.
    */
@@ -83,13 +66,6 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
     this.identifierData$ = this.getIdentifierData();
   }
 
-  /**
-   * Check if identifier section has read-only visibility
-   */
-  isReadOnly(): boolean {
-    return true;
-  }
-
   /**
    * Unsubscribe from all subscriptions, if needed.
    */