feat(Cascader): support virtual scroll api (#737)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: HaixingOoO

db/TDesign.db

@@ -14,8 +14,11 @@ header | TElement | - | Typescript：`TNode`。[see more ts definition](https://
 keys | Object | - | Typescript：`CascaderKeysType` `type CascaderKeysType = TreeKeysType`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts)。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/tree/develop/src/cascader/type.ts) | N
 lazy | Boolean | false | \- | N
 loadCompleted | Boolean | false | \- | N
+middleContent | TElement | - | Typescript：`TNode`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N
 options | Array | [] | Typescript：`Array<CascaderOption>` | N
+overlayProps | Object | {} | Typescript：`OverlayProps`，[Overlay API Documents](./overlay?tab=api)。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/tree/develop/src/cascader/type.ts) | N
 placeholder | String | 选择选项 | \- | N
+scroll | \- | - | Lazy loading and virtual scrolling. To maximize the benefits of the component, when the amount of data is less than the threshold `scroll.threshold`, regardless of whether the virtual scrolling configuration exists, virtual scrolling will not be enabled within the component. `scroll.threshold` defaults to `100`。Typescript：`TScroll`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N
 subTitles | Array | [] | Typescript：`Array<string>` | N
 theme | String | step | options: step/tab | N
 title | TNode | - | Typescript：`string \| TNode`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N

packages/products/tdesign-mobile-react/src/cascader/cascader.en-US.md

@@ -14,8 +14,11 @@ header | TElement | - | 头部。TS 类型：`TNode`。[通用类型定义](http
 keys | Object | - | 用来定义 value / label / children / disabled 在 `options` 中对应的字段别名。TS 类型：`CascaderKeysType` `type CascaderKeysType = TreeKeysType`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts)。[详细类型定义](https://github.com/Tencent/tdesign-mobile-react/tree/develop/src/cascader/type.ts) | N
 lazy | Boolean | false | 是否异步加载 | N
 loadCompleted | Boolean | false | 是否完成异步加载 | N
+middleContent | TElement | - | 中间内容。TS 类型：`TNode`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N
 options | Array | [] | 可选项数据源。TS 类型：`Array<CascaderOption>` | N
+overlayProps | Object | {} | 遮罩层的属性，透传至 overlay。TS 类型：`OverlayProps`，[Overlay API Documents](./overlay?tab=api)。[详细类型定义](https://github.com/Tencent/tdesign-mobile-react/tree/develop/src/cascader/type.ts) | N
 placeholder | String | 选择选项 | 未选中时的提示文案 | N
+scroll | \- | - | 懒加载和虚拟滚动。为保证组件收益最大化，当数据量小于阈值 `scroll.threshold` 时，无论虚拟滚动的配置是否存在，组件内部都不会开启虚拟滚动，`scroll.threshold` 默认为 `100`。TS 类型：`TScroll`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N
 subTitles | Array | [] | 每级展示的次标题。TS 类型：`Array<string>` | N
 theme | String | step | 展示风格。可选项：step/tab | N
 title | TNode | - | 标题。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-react/blob/develop/src/common.ts) | N

packages/products/tdesign-mobile-react/src/cascader/cascader.md

@@ -10,6 +10,7 @@ export const cascaderDefaultProps: TdCascaderProps = {
   lazy: false,
   loadCompleted: false,
   options: [],
+  overlayProps: {},
   placeholder: '选择选项',
   subTitles: [],
   theme: 'step',

packages/products/tdesign-mobile-react/src/cascader/defaultProps.ts

@@ -4,7 +4,8 @@
  * 该文件为脚本自动生成文件，请勿随意修改。如需修改请联系 PMC
  * */
 
-import { TNode, TElement, TreeOptionData, TreeKeysType } from '../common';
+import { OverlayProps } from '../overlay';
+import { TNode, TElement, TreeOptionData, TreeKeysType, TScroll } from '../common';
 
 export interface TdCascaderProps<CascaderOption extends TreeOptionData = TreeOptionData> {
   /**
@@ -35,16 +36,29 @@ export interface TdCascaderProps<CascaderOption extends TreeOptionData = TreeOpt
    * @default false
    */
   loadCompleted?: boolean;
+  /**
+   * 中间内容
+   */
+  middleContent?: TElement;
   /**
    * 可选项数据源
    * @default []
    */
   options?: Array<CascaderOption>;
+  /**
+   * 遮罩层的属性，透传至 overlay
+   * @default {}
+   */
+  overlayProps?: OverlayProps;
   /**
    * 未选中时的提示文案
    * @default 选择选项
    */
   placeholder?: string;
+  /**
+   * 懒加载和虚拟滚动。为保证组件收益最大化，当数据量小于阈值 `scroll.threshold` 时，无论虚拟滚动的配置是否存在，组件内部都不会开启虚拟滚动，`scroll.threshold` 默认为 `100`
+   */
+  scroll?: TScroll;
   /**
    * 每级展示的次标题
    * @default []

packages/products/tdesign-mobile-react/src/cascader/type.ts

@@ -14,6 +14,7 @@ middleContent | Slot / Function | - | Typescript：`TNode`。[see more ts defini
 options | Array | [] | Typescript：`Array<CascaderOption>` | N
 overlayProps | Object | {} | Typescript：`OverlayProps`，[Overlay API Documents](./overlay?tab=api)。[see more ts definition](https://github.com/Tencent/tdesign-mobile-vue/tree/develop/src/cascader/type.ts) | N
 placeholder | String / Slot / Function | '选择选项' | Typescript：`string \| TNode`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N
+scroll | \- | - | Lazy loading and virtual scrolling. To maximize the benefits of the component, when the amount of data is less than the threshold `scroll.threshold`, regardless of whether the virtual scrolling configuration exists, virtual scrolling will not be enabled within the component. `scroll.threshold` defaults to `100`。Typescript：`TScroll`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N
 subTitles | Array | [] | Typescript：`Array<string>` | N
 theme | String | step | options: step/tab | N
 title | String / Slot / Function | - | Typescript：`string \| TNode`。[see more ts definition](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N

packages/products/tdesign-mobile-vue/src/cascader/cascader.en-US.md

@@ -14,6 +14,7 @@ middleContent | Slot / Function | - | 中间内容。TS 类型：`TNode`。[通
 options | Array | [] | 可选项数据源。TS 类型：`Array<CascaderOption>` | N
 overlayProps | Object | {} | 遮罩层的属性，透传至 overlay。TS 类型：`OverlayProps`，[Overlay API Documents](./overlay?tab=api)。[详细类型定义](https://github.com/Tencent/tdesign-mobile-vue/tree/develop/src/cascader/type.ts) | N
 placeholder | String / Slot / Function | '选择选项' | 未选中时的提示文案。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N
+scroll | \- | - | 懒加载和虚拟滚动。为保证组件收益最大化，当数据量小于阈值 `scroll.threshold` 时，无论虚拟滚动的配置是否存在，组件内部都不会开启虚拟滚动，`scroll.threshold` 默认为 `100`。TS 类型：`TScroll`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N
 subTitles | Array | [] | 每级展示的次标题。TS 类型：`Array<string>` | N
 theme | String | step | 展示风格。可选项：step/tab | N
 title | String / Slot / Function | - | 标题。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-mobile-vue/blob/develop/src/common.ts) | N

packages/products/tdesign-mobile-vue/src/cascader/cascader.md

@@ -5,7 +5,7 @@
  * */
 
 import { OverlayProps } from '../overlay';
-import { TNode, TreeOptionData, TreeKeysType } from '../common';
+import { TNode, TreeOptionData, TreeKeysType, TScroll } from '../common';
 
 export interface TdCascaderProps<CascaderOption extends TreeOptionData = TreeOptionData> {
   /**
@@ -45,6 +45,10 @@ export interface TdCascaderProps<CascaderOption extends TreeOptionData = TreeOpt
    * @default '选择选项'
    */
   placeholder?: string | TNode;
+  /**
+   * 懒加载和虚拟滚动。为保证组件收益最大化，当数据量小于阈值 `scroll.threshold` 时，无论虚拟滚动的配置是否存在，组件内部都不会开启虚拟滚动，`scroll.threshold` 默认为 `100`
+   */
+  scroll?: TScroll;
   /**
    * 每级展示的次标题
    * @default []

packages/products/tdesign-mobile-vue/src/cascader/type.ts

@@ -39,6 +39,7 @@ defaultPopupVisible | Boolean | - | uncontrolled property | N
 prefixIcon | TElement | - | Typescript：`TNode`。[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N
 readonly | Boolean | undefined | \- | N
 reserveKeyword | Boolean | false | \- | N
+scroll | \- | - | Lazy loading and virtual scrolling. To maximize the benefits of the component, when the amount of data is less than the threshold `scroll.threshold`, regardless of whether the virtual scrolling configuration exists, virtual scrolling will not be enabled within the component. `scroll.threshold` defaults to `100`。Typescript：`TScroll`。[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N
 selectInputProps | Object | - | Typescript：`SelectInputProps`，[SelectInput API Documents](./select-input?tab=api)。[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/cascader/type.ts) | N
 showAllLevels | Boolean | true | \- | N
 size | String | medium | options: large/medium/small。Typescript：`SizeEnum`。[see more ts definition](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N

packages/products/tdesign-react/packages/components/cascader/cascader.en-US.md

@@ -39,6 +39,7 @@ defaultPopupVisible | Boolean | - | 是否显示下拉框。非受控属性 | N
 prefixIcon | TElement | - | 组件前置图标。TS 类型：`TNode`。[通用类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N
 readonly | Boolean | undefined | 只读状态，值为真会隐藏输入框，且无法打开下拉框 | N
 reserveKeyword | Boolean | false | 多选且可搜索时，是否在选中一个选项后保留当前的搜索关键词 | N
+scroll | \- | - | 懒加载和虚拟滚动。为保证组件收益最大化，当数据量小于阈值 `scroll.threshold` 时，无论虚拟滚动的配置是否存在，组件内部都不会开启虚拟滚动，`scroll.threshold` 默认为 `100`。TS 类型：`TScroll`。[通用类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N
 selectInputProps | Object | - | 透传 SelectInput 筛选器输入框组件的全部属性。TS 类型：`SelectInputProps`，[SelectInput API Documents](./select-input?tab=api)。[详细类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/cascader/type.ts) | N
 showAllLevels | Boolean | true | 选中值使用完整路径，输入框在单选时也显示完整路径 | N
 size | String | medium | 组件尺寸。可选项：large/medium/small。TS 类型：`SizeEnum`。[通用类型定义](https://github.com/Tencent/tdesign-react/blob/develop/packages/components/common.ts) | N