selected row highlight (#1448)

* showing selected row

Support for showing selected row for the components:

- DataTable
- DocumentList
- Activiti TaskList
- Activiti ProcessList

fixes #170

* unit test fixes

ng2-components/ng2-alfresco-datatable/src/components/datatable/datatable.component.ts

@@ -53,10 +53,6 @@ export class DataTableComponent implements OnInit {
     @Output()
     rowDblClick: EventEmitter<DataRowEvent> = new EventEmitter<DataRowEvent>();
 
-    noContentTemplate: TemplateRef<any>;
-
-    isSelectAllChecked: boolean = false;
-
     @Output()
     showRowContextMenu: EventEmitter<any> = new EventEmitter();
 
@@ -66,6 +62,13 @@ export class DataTableComponent implements OnInit {
     @Output()
     executeRowAction: EventEmitter<any> = new EventEmitter();
 
+    noContentTemplate: TemplateRef<any>;
+    isSelectAllChecked: boolean = false;
+
+    get selectedRow(): DataRow {
+        return this.data.selectedRow;
+    }
+
     ngOnInit() {
         if (!this.data) {
             this.data = new ObjectDataTableAdapter([], []);
@@ -82,6 +85,10 @@ export class DataTableComponent implements OnInit {
             e.preventDefault();
         }
 
+        if (this.data) {
+            this.data.selectedRow = row;
+        }
+
         this.rowClick.emit({
             value: row,
             event: e