[ADF-2494] Task Standalone - Provide a way to attach a form (#3459)

* button added for task standalone

* attach form component added

* slide-toggle position fixed

* tests added

* rebase fixed

* review fix

* test added & fixes

* tests fixes

* refresh task details

* tests fixed

* attachFormToATask test added

* formPreview test fixed

* adf-form test fixed

lib/process-services/task-list/components/task-details.component.ts

@@ -21,6 +21,7 @@ import {
     CardViewUpdateService,
     ClickNotification,
     LogService,
+    FormService,
     UpdateNotification,
     FormRenderingService,
     CommentsComponent
@@ -186,6 +187,7 @@ export class TaskDetailsComponent implements OnInit, OnChanges {
                 private authService: AuthenticationService,
                 private peopleProcessService: PeopleProcessService,
                 private formRenderingService: FormRenderingService,
+                private formService: FormService,
                 private logService: LogService,
                 private cardViewUpdateService: CardViewUpdateService,
                 private dialog: MatDialog) {
@@ -363,6 +365,13 @@ export class TaskDetailsComponent implements OnInit, OnChanges {
         );
     }
 
+    onFormAttached() {
+        this.formService.getTaskForm(this.taskId)
+            .subscribe((res) => {
+                this.loadDetails(this.taskId);
+            }, error => this.logService.error('Could not load forms'));
+    }
+
     onFormContentClick(content: ContentLinkModel): void {
         this.formContentClicked.emit(content);
     }