zyejMAll-mobile/pages/chat/components/messageList.vue

<template>
  <!--  聊天虚拟列表  -->
  <z-paging
    ref="pagingRef"
    use-chat-record-mode
    use-virtual-list
    cell-height-mode="dynamic"
    default-page-size="20"
    :auto-clean-list-when-reload="false"
    safe-area-inset-bottom
    bottom-bg-color="#f8f8f8"
    :back-to-top-style="backToTopStyle"
    :auto-show-back-to-top="showNewMessageTip"
    @backToTopClick="onBackToTopClick"
    @scrolltoupper="onScrollToUpper"
    @query="queryList"
  >
    <template #top>
      <!-- 撑一下顶部导航 -->
      <view :style="{height:hei+'px'}"></view>
    </template>
    <!-- style="transform: scaleY(-1)"必须写，否则会导致列表倒置！！！ -->
    <!-- 注意不要直接在chat-item组件标签上设置style，因为在微信小程序中是无效的，请包一层view -->
    <template #cell="{ item, index }">
      <view style="transform: scaleY(-1)">
        <!--  消息渲染  -->
        <MessageListItem
          :message="item"
          :message-index="index"
        ></MessageListItem>
      </view>
    </template>
    <!-- 底部聊天输入框 -->
    <template #bottom>
      <slot name="bottom"></slot>
    </template>
    <!-- 查看最新消息 -->
    <template #backToTop>
      <text>有新消息</text>
    </template>
  </z-paging>
</template>

<script setup>
  import MessageListItem from '@/pages/chat/components/messageListItem.vue';
  import { reactive, ref } from 'vue';
  import KeFuApi from '@/sheep/api/promotion/kefu';
  import { isEmpty } from '@/sheep/helper/utils';
const props = defineProps({
    hei: {
      type: [Object, String, Number],
      default() {},
    },
  });
  const showNewMessageTip = ref(false); // 显示有新消息提示
  const backToTopStyle = reactive({
    width: '100px',
    'background-color': '#fff',
    'border-radius': '30px',
    'box-shadow': '0 2px 4px rgba(0, 0, 0, 0.1)',
    display: 'flex',
    justifyContent: 'center',
    alignItems: 'center',
  }); // 返回顶部样式
  const queryParams = reactive({
    pageNo: 1,
    pageSize: 10,
  });
  const pagingRef = ref(null); // 虚拟列表
  const queryList = async (pageNo, pageSize) => {
    // 组件加载时会自动触发此方法，因此默认页面加载时会自动触发，无需手动调用
    // 这里的pageNo和pageSize会自动计算好，直接传给服务器即可
    queryParams.pageNo = pageNo;
    queryParams.pageSize = pageSize;
    await getMessageList();
  };
  const msss = ref([]);
  // 获得消息分页列表
  const getMessageList = async () => {
    const { data } = await KeFuApi.getKefuMessagePage(queryParams);
    if (isEmpty(data.list)) {
      return;
    }
	msss.value = data.list
    pagingRef.value.completeByTotal(data.list, data.total);
  };
  const emits = defineEmits(['cc']);
  /** 刷新消息列表 */
  const refreshMessageList = (message = undefined) => {
    if (queryParams.pageNo != 1 && message !== undefined) {
      showNewMessageTip.value = true;
      // 追加数据
      pagingRef.value.addChatRecordData([message], false);
      return;
    }
    pagingRef.value.reload();
	console.log("--data1---")
	emits("cc", msss.value[msss.value.length-1].kefuName)
  };
  /** 滚动到最新消息 */
  const onBackToTopClick = (event) => {
    event(false); // 禁用默认操作
    pagingRef.value.scrollToBottom();
  };
  /** 监听滚动到底部事件（因为 scroll 翻转了顶就是底） */
  const onScrollToUpper = () => {
    // 若已是第一页则不做处理
    if (queryParams.pageNo === 1) {
      return;
    }
    showNewMessageTip.value = false;
    // 到底重置消息列表
    refreshMessageList();
  };
  defineExpose({ getMessageList, refreshMessageList });
</script>