fix: 修复 carousel-item 无法嵌套 v-for 渲染

example/docs/zh-CN/components/carousel.md

@@ -118,6 +118,45 @@ export default {
 
 :::
 
+::: title 动态遍历
+:::
+
+::: demo
+
+<template>
+  <lay-carousel v-model="active">
+    <lay-carousel-item :id="item.id" v-for="item in arrays">
+      <div style="color: white;text-align: center;width:100%;height:300px;line-height:300px;background-color:#79C48C;">{{ item.text }}</div>
+    </lay-carousel-item>
+  </lay-carousel>
+</template>
+
+<script>
+import { ref } from 'vue'
+
+export default {
+  setup() {
+
+    const active = ref("1")
+
+    const arrays = ref([
+      {id: "1", text: ""},
+      {id: "2", text: ""},
+      {id: "3", text: ""},
+      {id: "4", text: ""}
+    ])
+
+    return {
+      active,
+      arrays
+    }
+  }
+}
+</script>
+
+:::
+
+
 ::: title Carousel 属性
 :::
 

example/docs/zh-CN/guide/changelog.md

@@ -23,6 +23,7 @@
           <li>[新增] page 分页组件 v-model 属性, 支持默认页设置。</li>
           <li>[新增] date-picker 日期选择组件, 支持年月, 日期, 时间。</li>
           <li>[新增] transfer 穿梭框组件 showSearch 开启搜索属性。</li>
+          <li>[修复] carousel-item 轮播项使用 v-for 无法渲染。</li>
           <li>[修复] checkbox 复选框组件, 选中颜色丢失。</li>
           <li>[修复] slider 滑块组件, 默认 step 值异常。</li>
           <li>[升级] layer-vue 1.3.10 版本。</li>

src/component/carousel/index.less

@@ -1,6 +1,5 @@
 @import "../../theme/variable.less";
 
-
 .layui-carousel {
   position: relative;
   left: 0;
@@ -275,4 +274,3 @@
   > .layui-this.layui-carousel-right {
   opacity: 0;
 }
-  

src/component/carousel/index.vue

@@ -6,7 +6,8 @@ export default {
 
 <script setup lang="ts">
 import "./index.less";
-import { withDefaults, provide, useSlots, ref, computed } from "vue";
+import { withDefaults, provide, useSlots, ref, computed, VNode, Ref, Component, watch, onMounted } from "vue";
+import CarouselItem from "../carouselItem"
 
 const slot = useSlots() as any;
 const slots = slot.default && (slot.default() as any[]);
@@ -17,14 +18,18 @@ const props = withDefaults(
     height?: string;
     modelValue: string;
     anim?: string;
+    autoplay?: boolean;
     arrow?: string;
+    interval?: number;
     indicator?: string;
   }>(),
   {
     width: "100%",
     height: "280px",
     anim: "default",
+    autoplay: true,
     arrow: "hover",
+    interval: 3000,
     indicator: "inside",
   }
 );
@@ -45,27 +50,55 @@ const change = function (id: any) {
   active.value = id;
 };
 
-provide("active", active);
+const childrens: Ref<VNode[]> = ref([]);
+const slotsChange = ref(true);
 
-const prev = function () {
-  for (var i = 0; i < slots.length; i++) {
-    if (slots[i].props.id === active.value) {
-      if (i === 0) {
-        active.value = slots[slots.length - 1].props.id;
+const setItemInstanceBySlot = function (nodeList: VNode[]) {
+  nodeList?.map((item) => {
+    let component = item.type as Component;
+    if (component.name != CarouselItem.name) {
+      setItemInstanceBySlot(item.children as VNode[]);
+    } else {
+      childrens.value.push(item);
     }
-      active.value = slots[i - 1].props.id;
+  });
+};
+
+watch(slotsChange, function () {
+  childrens.value = [];
+  setItemInstanceBySlot((slot.default && slot.default()) as VNode[]);
+});
+
+provide("active", active);
+provide("slotsChange", slotsChange);
+
+// 上一页
+const prev = function () {
+  for (var i = 0; i < childrens.value.length; i++) {
+    // @ts-ignore
+    if (childrens.value[i].props.id === active.value) {
+      if (i === 0) {
+        // @ts-ignore
+        active.value = childrens.value[slots.length - 1].props.id;
+      }
+      // @ts-ignore
+      active.value = childrens.value[i - 1].props.id;
       break;
     }
   }
 };
 
+// 下一页
 const next = function () {
-  for (var i = 0; i < slots.length; i++) {
-    if (slots[i].props.id === active.value) {
-      if (i === slots.length - 1) {
-        active.value = slots[0].props.id;
+  for (var i = 0; i < childrens.value.length; i++) {
+    // @ts-ignore
+    if (childrens.value[i].props.id === active.value) {
+      if (i === childrens.value.length - 1) {
+        // @ts-ignore
+        active.value = childrens.value[0].props.id;
       }
-      active.value = slots[i + 1].props.id;
+      // @ts-ignore
+      active.value = childrens.value[i + 1].props.id;
       break;
     }
   }
@@ -86,7 +119,7 @@ const next = function () {
     <div class="layui-carousel-ind">
       <ul>
         <li
-          v-for="ss in slots"
+          v-for="ss in childrens"
           :key="ss"
           :class="[ss.props.id === active ? 'layui-this' : '']"
           @click.stop="change(ss.props.id)"

src/component/carouselItem/index.vue

@@ -5,13 +5,16 @@ export default {
 </script>
 
 <script setup lang="ts">
-import { inject } from "vue";
+import { inject, Ref } from "vue";
 
 const props = defineProps<{
   id: string;
 }>();
 
 const active = inject("active");
+const slotsChange: Ref<boolean> = inject("slotsChange") as Ref<boolean>;
+slotsChange.value = !slotsChange.value;
+
 </script>
 
 <template>

src/component/tab/index.vue

@@ -29,6 +29,7 @@ export interface LayTabProps {
 const slot = useSlots();
 const slots = slot.default && slot.default();
 const childrens: Ref<VNode[]> = ref([]);
+const slotsChange = ref(true);
 
 const setItemInstanceBySlot = function (nodeList: VNode[]) {
   nodeList?.map((item) => {
@@ -53,7 +54,6 @@ const active = computed({
     emit("update:modelValue", val);
   },
 });
-const slotsChange = ref(true);
 
 const change = function (id: any) {
   // 回调切换标签之前的回调钩子函数，只要不是return false, 则进行切换该tab