[ADF-4484] Quick notifications (#4688)

* quick notifications (info, error, warning)

* update code docs

demo-shell/src/app/components/notifications/notifications.component.html

@@ -65,4 +65,10 @@
             {{snackBarConfigObject}}
         </p>
     </div>
+    <div>
+        <h3>Quick Messages</h3>
+        <button mat-button color="primary" (click)="quickInfo()">Info</button>
+        <button mat-button color="warn" (click)="quickError()">Error</button>
+        <button mat-button color="accent" (click)="quickWarning()">Warning</button>
+    </div>
 </div>

demo-shell/src/app/components/notifications/notifications.component.ts

@@ -117,4 +117,16 @@ export class NotificationsComponent implements OnInit {
     dismissSnackBar() {
         this.notificationService.dismissSnackMessageAction();
     }
+
+    quickError() {
+        this.notificationService.showError(this.message, 'Fix');
+    }
+
+    quickInfo() {
+        this.notificationService.showInfo(this.message);
+    }
+
+    quickWarning() {
+        this.notificationService.showWarning(this.message, 'Undo');
+    }
 }

demo-shell/src/app/components/notifications/notifications.module.ts

@@ -20,6 +20,7 @@ import { NotificationsComponent } from './notifications.component';
 import { Routes, RouterModule } from '@angular/router';
 import { CommonModule } from '@angular/common';
 import { CoreModule } from '@alfresco/adf-core';
+import { MatButtonModule } from '@angular/material/button';
 
 const routes: Routes = [
     {
@@ -32,7 +33,8 @@ const routes: Routes = [
     imports: [
         CommonModule,
         CoreModule.forChild(),
-        RouterModule.forChild(routes)
+        RouterModule.forChild(routes),
+        MatButtonModule
     ],
     declarations: [NotificationsComponent]
 })