95 lines
3.4 KiB
Vue
95 lines
3.4 KiB
Vue
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<template>
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<!-- 聊天虚拟列表 -->
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<z-paging ref="pagingRef" v-model="messageList" use-chat-record-mode use-virtual-list
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cell-height-mode="dynamic" default-page-size="20" :auto-clean-list-when-reload="false"
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safe-area-inset-bottom bottom-bg-color="#f8f8f8" :back-to-top-style="backToTopStyle"
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:auto-show-back-to-top="showNewMessageTip" @backToTopClick="onBackToTopClick"
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@scrolltoupper="onScrollToUpper" @query="queryList">
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<template #top>
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<!-- 撑一下顶部导航 -->
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<view style="height: 45px"></view>
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</template>
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<!-- style="transform: scaleY(-1)"必须写，否则会导致列表倒置！！！ -->
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<!-- 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 -->
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<template #cell="{item,index}">
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<view style="transform: scaleY(-1)">
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<!-- 消息渲染 -->
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<MessageListItem :message="item" :message-index="index" :message-list="messageList"></MessageListItem>
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</view>
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</template>
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<!-- 底部聊天输入框 -->
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<template #bottom>
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<slot name="bottom"></slot>
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</template>
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<!-- 查看最新消息 -->
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<template #backToTop>
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<text>有新消息</text>
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</template>
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</z-paging>
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</template>
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<script setup>
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import MessageListItem from '@/pages/chat/components/messageListItem.vue';
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import { reactive, ref } from 'vue';
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import KeFuApi from '@/sheep/api/promotion/kefu';
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import { isEmpty } from '@/sheep/helper/utils';
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const messageList = ref([]); // 消息列表
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const showNewMessageTip = ref(false); // 显示有新消息提示
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const backToTopStyle = reactive({
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'width': '100px',
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'background-color': '#fff',
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'border-radius': '30px',
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'box-shadow': '0 2px 4px rgba(0, 0, 0, 0.1)',
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'display': 'flex',
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'justifyContent': 'center',
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'alignItems': 'center',
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}); // 返回顶部样式
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const queryParams = reactive({
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pageNo: 1,
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pageSize: 10,
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});
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const pagingRef = ref(null); // 虚拟列表
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const queryList = async (pageNo, pageSize) => {
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// 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
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// 这里的pageNo和pageSize会自动计算好，直接传给服务器即可
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queryParams.pageNo = pageNo;
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queryParams.pageSize = pageSize;
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await getMessageList();
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};
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// 获得消息分页列表
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const getMessageList = async () => {
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const { data } = await KeFuApi.getKefuMessagePage(queryParams);
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if (isEmpty(data.list)) {
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return;
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}
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pagingRef.value.completeByTotal(data.list, data.total);
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};
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/** 刷新消息列表 */
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const refreshMessageList = (message = undefined) => {
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if (queryParams.pageNo != 1 && message !== undefined) {
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showNewMessageTip.value = true;
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// 追加数据
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pagingRef.value.addChatRecordData([message], false);
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return;
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}
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pagingRef.value.reload();
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};
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/** 滚动到最新消息 */
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const onBackToTopClick = (event) => {
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event(false); // 禁用默认操作
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pagingRef.value.scrollToBottom();
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};
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/** 监听滚动到底部事件（因为 scroll 翻转了顶就是底） */
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const onScrollToUpper = () => {
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// 若已是第一页则不做处理
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if (queryParams.pageNo === 1) {
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return;
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}
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showNewMessageTip.value = false;
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// 到底重置消息列表
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refreshMessageList();
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};
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defineExpose({ getMessageList, refreshMessageList });
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</script>
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