<!--
 Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 for details. All rights reserved. Use of this source code is governed by a
 BSD-style license that can be found in the LICENSE file.
-->
<material-popup enforceSpaceConstraints
    [(visible)]="isExpanded"
    [source]="popupSource"
    [class]="popupClass"
    [preferredPositions]="preferredPositions">
  <focus-trap>
    <ng-content></ng-content>
    <material-list
        *deferredContent="true"
        class="item-group-lis