Initial tabbable search results implementation

Refs #371

ng2-components/ng2-alfresco-search/src/components/alfresco-search-autocomplete.component.ts

@@ -43,6 +43,9 @@ export class AlfrescoSearchAutocompleteComponent implements OnInit, OnChanges {
     @Output()
     preview: EventEmitter<any> = new EventEmitter();
 
+    @Output()
+    blurEmitter: EventEmitter<any> = new EventEmitter();
+
     @Output()
     resultsEmitter = new EventEmitter();
 
@@ -129,4 +132,33 @@ export class AlfrescoSearchAutocompleteComponent implements OnInit, OnChanges {
         }
     }
 
+    onRowBlur(node): void {
+        window.setTimeout(() => {
+            let focusedEl = document.activeElement;
+            if (focusedEl && focusedEl.id && focusedEl.id.indexOf('result_row_') === 0) {
+                return;
+            }
+            this.blurEmitter.emit(node);
+        }, 100);
+        console.log('row blur', node);
+    }
+
+    onRowFocus(node): void {
+        console.log('row focus', node);
+    }
+
+    onRowEnter(node): void {
+        if (node && node.entry) {
+            if (node.entry.isFile) {
+                this.preview.emit({
+                    value: node
+                });
+            }
+        }
+    }
+
+    onFocusOut(): void {
+        console.log('onfocusout');
+    }
+
 }