IM 通道

onImCallCalling: (m, data) => {
  // data.base    谁发的
  // data.content 业务内容，类型按事件不同
}

onImCallCalling: (m, data) => {
  // data.content: ImCallContent
  //   roomNo / meetingId / title
  this.showIncomingCall(data.base.name, data.content.title, async () => {
    await m.enterRoom({
      nickname: myNickname,
      meetingId: data.content.meetingId
    });
  });
}

onImMeetingRemind: (m, data) => {
  // data.content: ImMeetingRemindContent
  //   roomNo / meetingId / title / creatorName / planTime / planDur
  this.showReminder(
    data.content.title,
    data.content.creatorName,
    data.content.planTime,
    data.content.planDur
  );
}

// 被移出等候室（也就是被放行或被拒）
onImAdminMoveOutWaitingRoom: (m, data) => {
  // data.content.meetingId / title
}

// 子会议里有成员求助（主持人收到）
onImUserHelpSubMeeting: (m, data) => {
  // data.base.name 谁在求助
  // data.content.parent 主会议 ID，meetingId 子会议 ID
  this.showHelpRequest(data.base.name, data.content.title);
}

onImReconnecting: (m) => { /* 无参数 */ },
onImReconnected: (m) => { /* 无参数 */ },
onImDisconnected: (m, data) => {
  // data.reason?: string
}

// App 级：登录后就注册，用于接呼叫和提醒
class GlobalMeetingObserver implements SMeetingDelegate {
  onImCallCalling = (m, data) => { /* 全局弹窗 */ };
  onImMeetingRemind = (m, data) => { /* 通知栏 */ };
}

// 会议页级：进会时注册，出会时摘除
const roomDelegate: SMeetingDelegate = {
  onUserEnter: (m, u) => { /* ... */ },
  onImUserHelpSubMeeting: (m, data) => { /* 只在会中有意义 */ }
};