Demo shell hiding app title when search bar expanded

Refs #228

demo-shell-ng2/app/components/search/search-bar.component.ts

@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { Component } from '@angular/core';
+import { Component, EventEmitter, Output } from '@angular/core';
 import { Router } from '@angular/router-deprecated';
 import { ALFRESCO_SEARCH_DIRECTIVES } from 'ng2-alfresco-search';
 import { VIEWERCOMPONENT } from 'ng2-alfresco-viewer';
@@ -41,6 +41,9 @@ export class SearchBarComponent {
     mimeType: string;
     fileShowed: boolean = false;
 
+    @Output()
+    expand = new EventEmitter();
+
     constructor(
         public router: Router,
         public auth: AlfrescoAuthenticationService,
@@ -72,4 +75,8 @@ export class SearchBarComponent {
             this.fileShowed = true;
         }
     }
+
+    onExpandToggle(event) {
+        this.expand.emit(event);
+    }
 }