<mat-button-toggle-group class="ucap-split-button-container" [matMenuTriggerFor]="menu" [disabled]="disabled" #matMenuTrigger="matMenuTrigger" > <mat-button-toggle color="primary" (click)="onClick($event)"> <ng-content></ng-content> </mat-button-toggle> <mat-button-toggle color="primary" (click)="onClickSplit($event)"> <span class="mdi mdi-24px" [class.mdi-menu-up]="splitOpened" [class.mdi-menu-down]="!splitOpened" ></span> </mat-button-toggle> </mat-button-toggle-group>