services/self-service/src/main/resources/webapp/src/app/resources/bucket-browser/buckets-tree/bucket-tree.component.html

<mat-tree [dataSource]="dataSource" [treeControl]="treeControl">
  <mat-tree-node
    *matTreeNodeDef="let node"
    matTreeNodePadding matTreeNodePaddingIndent="17"
    (click)="openBucketData(node)"
    [ngClass]="{'active-item': activeBacket === node}">
    <button mat-icon-button disabled></button>
    <div
      class="ellipsis"
      matTooltip="{{node.name}}"
      matTooltipPosition="above"
      matTooltipShowDelay="1000"
      [matTooltipClass]="'bucket-item-tooltip'"
    >{{node.name}}</div>
  </mat-tree-node>
  <mat-tree-node *matTreeNodeDef="let node;when: hasChild" matTreeNodePadding  matTreeNodePaddingIndent="17">
    <button mat-icon-button matTreeNodeToggle
            [attr.aria-label]="'toggle ' + node.name">
      <mat-icon class="mat-icon-rtl-mirror">
        {{treeControl.isExpanded(node) ? 'expand_more' : 'chevron_right'}}
      </mat-icon>
    </button>
    <span (click)="toggleProject(node, treeControl.isExpanded(node))">{{node.name}}</span>
  </mat-tree-node>
</mat-tree>