168 lines
4.8 KiB
Vue
168 lines
4.8 KiB
Vue
<script lang="ts" setup>
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import type { Reply } from './types';
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import { computed, ref, unref, watch } from 'vue';
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import { NewsType, ReplyType } from '@vben/constants';
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import { IconifyIcon } from '@vben/icons';
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import { ElRow, ElTabPane, ElTabs } from 'element-plus';
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import TabImage from './tab-image.vue';
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import TabMusic from './tab-music.vue';
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import TabNews from './tab-news.vue';
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import TabText from './tab-text.vue';
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import TabVideo from './tab-video.vue';
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import TabVoice from './tab-voice.vue';
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import { createEmptyReply } from './types';
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/** 消息回复选择 */
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defineOptions({ name: 'WxReplySelect' });
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const props = withDefaults(defineProps<Props>(), {
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newsType: undefined,
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});
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const emit = defineEmits<{
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(e: 'update:modelValue', v: Reply): void;
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}>();
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interface Props {
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modelValue: Reply | undefined;
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newsType?: NewsType;
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}
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const defaultReply: Reply = {
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accountId: -1,
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type: ReplyType.Text,
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}; // 提供一个默认的 Reply 对象，避免 undefined 导致的错误
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const reply = computed<Reply>({
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get: () => props.modelValue || defaultReply,
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set: (val) => emit('update:modelValue', val),
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});
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const tabCache = new Map<ReplyType, Reply>(); // 作为多个标签保存各自 Reply 的缓存
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const currentTab = ref<ReplyType>(props.modelValue?.type || ReplyType.Text); // 采用独立的 ref 来保存当前 tab，避免在 watch 标签变化，对 reply 进行赋值会产生了循环调用
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// 监听 modelValue 变化，同步更新 currentTab 和缓存
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watch(
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() => props.modelValue,
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(newValue) => {
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if (newValue?.type) {
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// 如果类型变化，更新 currentTab
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if (newValue.type !== currentTab.value) {
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currentTab.value = newValue.type;
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}
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// 如果 modelValue 有数据，更新对应 tab 的缓存
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if (newValue.type) {
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tabCache.set(newValue.type, { ...newValue });
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}
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}
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},
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{ immediate: true, deep: true },
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);
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watch(
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currentTab,
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(newTab, oldTab) => {
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// 第一次进入：oldTab 为 undefined
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// 判断 newTab 是因为 Reply 为 Partial
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if (oldTab === undefined || newTab === undefined) {
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return;
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}
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// 保存旧tab的数据到缓存
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const oldReply = unref(reply);
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// 只有当旧tab的reply有实际数据时才缓存（避免缓存空数据）
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if (oldReply && oldTab === oldReply.type) {
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tabCache.set(oldTab, oldReply);
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}
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// 从缓存里面取出新tab内容，有则覆盖Reply，没有则创建空Reply
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const temp = tabCache.get(newTab);
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if (temp) {
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reply.value = temp;
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} else {
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// 如果当前reply的类型就是新tab的类型，说明这是从外部传入的数据，应该保留
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const currentReply = unref(reply);
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if (currentReply && currentReply.type === newTab) {
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// 这是从外部传入的数据，直接缓存并使用
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tabCache.set(newTab, currentReply);
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// 不需要修改reply.value，因为它已经是正确的了
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} else {
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// 创建新的空reply
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const newData = createEmptyReply(reply);
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newData.type = newTab;
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reply.value = newData;
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}
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}
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},
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{
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immediate: true,
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},
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);
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/** 清除除了`type`, `accountId`的字段 */
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function clear() {
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reply.value = createEmptyReply(reply);
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}
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defineExpose({
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clear,
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});
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</script>
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<template>
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<ElTabs type="border-card" v-model="reply.type" @tab-change="clear">
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<!-- 类型 1：文本 -->
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<ElTabPane :name="ReplyType.Text">
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<template #label>
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<ElRow align="middle"><IconifyIcon icon="ep:document" /> 文本</ElRow>
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</template>
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<TabText v-model="reply.content" />
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</ElTabPane>
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<!-- 类型 2：图片 -->
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<ElTabPane :name="ReplyType.Image">
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<template #label>
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<ElRow align="middle">
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<IconifyIcon icon="ep:picture" class="mr-5px" /> 图片
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</ElRow>
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</template>
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<TabImage v-model="reply" />
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</ElTabPane>
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<!-- 类型 3：语音 -->
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<ElTabPane :name="ReplyType.Voice">
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<template #label>
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<ElRow align="middle"><IconifyIcon icon="ep:phone" /> 语音</ElRow>
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</template>
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<TabVoice v-model="reply" />
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</ElTabPane>
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<!-- 类型 4：视频 -->
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<ElTabPane :name="ReplyType.Video">
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<template #label>
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<ElRow align="middle"><IconifyIcon icon="ep:share" /> 视频</ElRow>
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</template>
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<TabVideo v-model="reply" />
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</ElTabPane>
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<!-- 类型 5：图文 -->
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<ElTabPane :name="ReplyType.News">
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<template #label>
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<ElRow align="middle"><IconifyIcon icon="ep:reading" /> 图文</ElRow>
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</template>
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<TabNews v-model="reply" :news-type="newsType" />
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</ElTabPane>
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<!-- 类型 6：音乐 -->
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<ElTabPane :name="ReplyType.Music">
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<template #label>
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<ElRow align="middle"><IconifyIcon icon="ep:service" />音乐</ElRow>
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</template>
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<TabMusic v-model="reply" />
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</ElTabPane>
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</ElTabs>
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</template>
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