[ADF-1346] Attachment list component is shown for completed tasks/processes. (#2194)

* Added ng-content to adf-empty-list compoent.
* Updated css to scss.
* Added 'CUSTOM_ELEMENTS_SCHEMA'  to allow non-angular elements.
* Updated readme.mg file

ng2-components/ng2-activiti-tasklist/src/components/task-attachment-list.component.ts

@@ -21,7 +21,7 @@ import { ContentService, ThumbnailService } from 'ng2-alfresco-core';
 
 @Component({
     selector: 'adf-task-attachment-list',
-    styleUrls: ['./task-attachment-list.component.css'],
+    styleUrls: ['./task-attachment-list.component.scss'],
     templateUrl: './task-attachment-list.component.html'
 })
 export class TaskAttachmentListComponent implements OnChanges {
@@ -29,6 +29,9 @@ export class TaskAttachmentListComponent implements OnChanges {
     @Input()
     taskId: string;
 
+    @Input()
+    disabled: boolean = false;
+
     @Output()
     attachmentClick = new EventEmitter();
 
@@ -38,6 +41,9 @@ export class TaskAttachmentListComponent implements OnChanges {
     @Output()
     error: EventEmitter<any> = new EventEmitter<any>();
 
+    @Input()
+    emptyListImageUrl: string = require('./../assets/images/empty_doc_lib.svg');
+
     attachments: any[] = [];
     isLoading: boolean = true;
 
@@ -133,9 +139,12 @@ export class TaskAttachmentListComponent implements OnChanges {
 
         event.value.actions = [
             viewAction,
-            removeAction,
             downloadAction
         ];
+
+        if (!this.disabled) {
+            event.value.actions.splice(1, 0, removeAction);
+        }
     }
 
     onExecuteRowAction(event: any) {
@@ -175,4 +184,8 @@ export class TaskAttachmentListComponent implements OnChanges {
             }
         );
     }
+
+    isDisabled(): boolean {
+        return this.disabled;
+    }
 }