feat: expose treeViewService and add deselection capability to it (#2964)

Author: Licen-it

src/treeview/treeview.component.ts

@@ -109,7 +109,7 @@ export class TreeViewComponent implements AfterViewInit, OnInit, OnDestroy {
 
 	constructor(
 		@Inject(DOCUMENT) private document: Document,
-		protected treeViewService: TreeViewService,
+		public treeViewService: TreeViewService,
 		private elementRef: ElementRef
 	) {}
 

src/treeview/treeview.service.ts

@@ -44,4 +44,25 @@ export class TreeViewService {
 		this.value.set(node.id, node);
 		this.selectionSubject.next(this.value);
 	}
+
+	/**
+	 * Removes selected node from the map
+	 * @param node: Node
+	 */
+	deselectNode(node: Node) {
+		if (!node) {
+			return;
+		}
+
+		this.value.delete(node.id);
+		this.selectionSubject.next(this.value);
+	}
+
+	/**
+	 * Removes all selected nodes from the map
+	 */
+	deselectAllNodes() {
+		this.value.clear();
+		this.selectionSubject.next(this.value);
+	}
 }