68954: Display claimed task actions depending on config from REST API

Conflicts:
	src/app/core/core.module.ts
	src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.html

src/app/shared/mydspace-actions/claimed-task/switcher/claimed-task-actions-loader.component.ts

@@ -0,0 +1,85 @@
+import {
+  Component,
+  ComponentFactoryResolver,
+  EventEmitter,
+  Input,
+  OnDestroy,
+  OnInit,
+  Output,
+  ViewChild
+} from '@angular/core';
+import { getComponentByWorkflowTaskOption } from './claimed-task-actions-decorator';
+import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
+import { ClaimedTaskActionsDirective } from './claimed-task-actions.directive';
+import { ClaimedTaskActionsAbstractComponent } from '../abstract/claimed-task-actions-abstract.component';
+import { hasValue } from '../../../empty.util';
+import { Subscription } from 'rxjs/internal/Subscription';
+
+@Component({
+  selector: 'ds-claimed-task-actions-loader',
+  templateUrl: './claimed-task-actions-loader.component.html'
+})
+/**
+ * Component for loading a ClaimedTaskAction component depending on the "option" input
+ * Passes on the ClaimedTask to the component and subscribes to the processCompleted output
+ */
+export class ClaimedTaskActionsLoaderComponent implements OnInit, OnDestroy {
+  /**
+   * The ClaimedTask object
+   */
+  @Input() object: ClaimedTask;
+
+  /**
+   * The name of the option to render
+   * Passed on to the decorator to fetch the relevant component for this option
+   */
+  @Input() option: string;
+
+  /**
+   * Emits the success or failure of a processed action
+   */
+  @Output() processCompleted: EventEmitter<boolean> = new EventEmitter<boolean>();
+
+  /**
+   * Directive to determine where the dynamic child component is located
+   */
+  @ViewChild(ClaimedTaskActionsDirective, {static: true}) claimedTaskActionsDirective: ClaimedTaskActionsDirective;
+
+  /**
+   * Array to track all subscriptions and unsubscribe them onDestroy
+   * @type {Array}
+   */
+  protected subs: Subscription[] = [];
+
+  constructor(private componentFactoryResolver: ComponentFactoryResolver) {
+  }
+
+  /**
+   * Fetch, create and initialize the relevant component
+   */
+  ngOnInit(): void {
+    const comp = getComponentByWorkflowTaskOption(this.option);
+    if (hasValue(comp)) {
+      const componentFactory = this.componentFactoryResolver.resolveComponentFactory(comp);
+
+      const viewContainerRef = this.claimedTaskActionsDirective.viewContainerRef;
+      viewContainerRef.clear();
+
+      const componentRef = viewContainerRef.createComponent(componentFactory);
+      const componentInstance = (componentRef.instance as ClaimedTaskActionsAbstractComponent);
+      componentInstance.object = this.object;
+      if (hasValue(componentInstance.processCompleted)) {
+        this.subs.push(componentInstance.processCompleted.subscribe((success) => this.processCompleted.emit(success)));
+      }
+    }
+  }
+
+  /**
+   * Unsubscribe from open subscriptions
+   */
+  ngOnDestroy(): void {
+    this.subs
+      .filter((subscription) => hasValue(subscription))
+      .forEach((subscription) => subscription.unsubscribe());
+  }
+}