feat: add lazyContainer comp and demo

CHANGELOG.zh_CN.md

@@ -8,6 +8,7 @@
 - 表单新增 submitOnReset 控制是否在重置时重新发起请求
 - 表格新增`sortFn`支持自定义排序
 - 新增动画组件及示例
+- 新增懒加载/延时加载组件及示例
 
 ### ✨ Refactor
 

src/components/Container/index.ts

 export { default as ScrollContainer } from './src/ScrollContainer.vue';
 export { default as CollapseContainer } from './src/collapse/CollapseContainer.vue';
-export { default as LazyContainer } from './src/LazyContainer';
+export { default as LazyContainer } from './src/LazyContainer.vue';
 
 export * from './src/types.d';

src/components/Container/src/LazyContainer.less

-.lazy-container-enter {
-  opacity: 0;
-}
-
-.lazy-container-enter-to {
-  opacity: 1;
-}
-
-.lazy-container-enter-from,
-.lazy-container-enter-active {
-  position: absolute;
-  top: 0;
-  width: 100%;
-  transition: opacity 0.3s 0.2s;
-}
-
-.lazy-container-leave {
-  opacity: 1;
-}
-
-.lazy-container-leave-to {
-  opacity: 0;
-}
-
-.lazy-container-leave-active {
-  transition: opacity 0.5s;
-}

src/router/menus/modules/demo/comp.ts

@@ -49,6 +49,10 @@ const menu: MenuModule = {
         name: '详情组件',
       },
       {
+        path: 'lazy',
+        name: '懒加载组件',
+      },
+      {
         path: 'verify',
         name: '验证组件',
         children: [

src/router/routes/modules/demo/comp.ts

@@ -99,7 +99,14 @@ export default {
         title: '详情组件',
       },
     },
-
+    {
+      path: '/lazy',
+      name: 'lazyDemo',
+      component: () => import('/@/views/demo/comp/lazy/index.vue'),
+      meta: {
+        title: '懒加载组件',
+      },
+    },
     {
       path: '/verify',
       name: 'VerifyDemo',

src/views/demo/comp/lazy/TargetContent.vue

+<template>
+  <Card hoverable :style="{ width: '240px', background: '#fff' }">
+    <template #cover>
+      <img alt="example" src="https://os.alipayobjects.com/rmsportal/QBnOOoLaAfKPirc.png" />
+    </template>
+    <CardMeta title="懒加载组件" />
+  </Card>
+</template>
+<script lang="ts">
+  import { defineComponent } from 'vue';
+  import { Card } from 'ant-design-vue';
+
+  export default defineComponent({
+    components: { CardMeta: Card.Meta, Card },
+    setup() {
+      return {};
+    },
+  });
+</script>

src/views/demo/comp/lazy/index.vue

+<template>
+  <div class="p-4 lazy-base-demo">
+    <Alert message="基础示例" description="向下滚动到可见区域才会加载组件" type="info" show-icon />
+    <div class="lazy-base-demo-wrap">
+      <h1>向下滚动</h1>
+      <LazyContainer @init="() => {}">
+        <TargetContent />
+        <template #skeleton>
+          <Skeleton :rows="10" />
+        </template>
+      </LazyContainer>
+    </div>
+  </div>
+</template>
+<script lang="ts">
+  import { defineComponent } from 'vue';
+  import { Skeleton, Alert } from 'ant-design-vue';
+  import TargetContent from './TargetContent.vue';
+  import { LazyContainer } from '/@/components/Container/index';
+  export default defineComponent({
+    components: { LazyContainer, TargetContent, Skeleton, Alert },
+    setup() {
+      return {};
+    },
+  });
+</script>
+<style lang="less" scoped>
+  .lazy-base-demo {
+    &-wrap {
+      display: flex;
+      width: 50%;
+      height: 2000px;
+      margin: 20px auto;
+      text-align: center;
+      background: #fff;
+      justify-content: center;
+      flex-direction: column;
+      align-items: center;
+    }
+
+    h1 {
+      height: 1300px;
+      margin: 20px 0;
+    }
+  }
+</style>