next-ucap-messenger/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html

<!-- CHAT -->
<div class="container" fxFlex fxLayout="column">
  <!-- CHAT TOOLBAR -->
  <mat-toolbar class="chat-toolbar">
    <div fxFlex fxLayout="row" fxLayoutAlign="space-between center">
      <div fxLayout="row" fxLayoutAlign="start center">
        <!-- RESPONSIVE CHATS BUTTON-->
        <button mat-icon-button aria-label="chats button" fxHide.gt-md class="responsive-chats-button">
          <mat-icon>chat</mat-icon>
        </button>
        <!-- / RESPONSIVE CHATS BUTTON-->
      </div>

      <div>
        <button *ngIf="!!roomInfo" mat-icon-button (click)="onClickReceiveAlarm($event)"
          aria-label="Toggle Receive Alarm">
          <mat-icon class="amber-fg" *ngIf="roomInfo.receiveAlarm">notifications_active</mat-icon>
          <mat-icon class="secondary-text" *ngIf="!roomInfo.receiveAlarm">notifications_off</mat-icon>
        </button>

        <button mat-icon-button [matMenuTriggerFor]="contactMenu" aria-label="more">
          <mat-icon>more_vert</mat-icon>
        </button>

        <mat-menu #contactMenu="matMenu">
          <button mat-menu-item (click)="selectContact()">
            Contact Info
          </button>
        </mat-menu>
      </div>
    </div>
  </mat-toolbar>
  <!-- / CHAT TOOLBAR -->
  <mat-progress-bar *ngIf="eventListProcessing$ | async" mode="indeterminate"></mat-progress-bar>
  <!-- CHAT CONTENT -->
  <div fxFlex="1 1 auto" class="chat-content" #messageBoxContainer>
    <!-- Timer Room Info -->
    <span *ngIf="roomInfo && roomInfo.isTimeRoom">비밀 대화방입니다.</span>
    <!-- Timer Room Info -->

    <!-- CHAT MESSAGES -->
    <ucap-chat-messages [messages]="eventList$ | async" [userInfos]="userInfoList$ | async" [loginRes]="loginRes"
      [sessionVerInfo]="sessionVerInfo" (massDetail)="onMassDetail($event)" (save)="onSave($event)"
      (imageViewer)="onImageViewer($event)">
    </ucap-chat-messages>
    <!-- CHAT MESSAGES -->
  </div>
  <!-- / CHAT CONTENT -->

  <!-- CHAT FOOTER -->
  <div fxFlex="0 0 auto" fxLayout="column">
    <!-- REPLY FORM -->
    <ucap-chat-form (send)="onSendMessage($event)"></ucap-chat-form>
    <!-- / REPLY FORM -->
  </div>
  <!-- / CHAT FOOTER-->
</div>
<!-- / CHAT -->