demo(design): Add remote search demo for Select

packages/design/src/select/demo/remote-search.tsx

@@ -0,0 +1,90 @@
+import React, { useMemo, useRef, useState } from 'react';
+import { Select, Spin } from '@oceanbase/design';
+import type { SelectProps } from '@oceanbase/design';
+import debounce from 'lodash/debounce';
+
+export interface DebounceSelectProps<ValueType = any>
+  extends Omit<SelectProps<ValueType | ValueType[]>, 'options' | 'children'> {
+  fetchOptions: (search: string) => Promise<ValueType[]>;
+  debounceTimeout?: number;
+}
+
+function DebounceSelect<
+  ValueType extends { key?: string; label: React.ReactNode; value: string | number } = any,
+>({ fetchOptions, debounceTimeout = 800, ...props }: DebounceSelectProps<ValueType>) {
+  const [fetching, setFetching] = useState(false);
+  const [options, setOptions] = useState<ValueType[]>([]);
+  const fetchRef = useRef(0);
+
+  const debounceFetcher = useMemo(() => {
+    const loadOptions = (value: string) => {
+      fetchRef.current += 1;
+      const fetchId = fetchRef.current;
+      setOptions([]);
+      setFetching(true);
+
+      fetchOptions(value).then(newOptions => {
+        if (fetchId !== fetchRef.current) {
+          // for fetch callback order
+          return;
+        }
+
+        setOptions(newOptions);
+        setFetching(false);
+      });
+    };
+
+    return debounce(loadOptions, debounceTimeout);
+  }, [fetchOptions, debounceTimeout]);
+
+  return (
+    <Select
+      labelInValue
+      filterOption={false}
+      onSearch={debounceFetcher}
+      notFoundContent={fetching ? <Spin size="small" /> : null}
+      {...props}
+      options={options}
+    />
+  );
+}
+
+// Usage of DebounceSelect
+interface UserValue {
+  label: string;
+  value: string;
+}
+
+async function fetchUserList(username: string): Promise<UserValue[]> {
+  console.log('fetching user', username);
+
+  return fetch('https://randomuser.me/api/?results=5')
+    .then(response => response.json())
+    .then(body =>
+      body.results.map(
+        (user: { name: { first: string; last: string }; login: { username: string } }) => ({
+          label: `${user.name.first} ${user.name.last}`,
+          value: user.login.username,
+        })
+      )
+    );
+}
+
+const App: React.FC = () => {
+  const [value, setValue] = useState<UserValue[]>([]);
+
+  return (
+    <DebounceSelect
+      mode="multiple"
+      value={value}
+      placeholder="Select users"
+      fetchOptions={fetchUserList}
+      onChange={newValue => {
+        setValue(newValue as UserValue[]);
+      }}
+      style={{ width: '100%' }}
+    />
+  );
+};
+
+export default App;

packages/design/src/select/index.md

@@ -16,6 +16,7 @@ demo:
 <!-- prettier-ignore -->
 <code src="./demo/basic.tsx" title="基本使用"></code>
 <code src="./demo/multiple.tsx" title="多选"></code>
+<code src="./demo/remote-search.tsx" title="远程搜索" description="带防抖控制、请求时序控制和加载状态展示"></code>
 <code src="./demo/tags.tsx" title="标签" description="标签式选择，支持输入任意内容"></code>
 <code src="./demo/variant.tsx" title="多种展示形式" description="支持 `outlined`、`filled` 和 `borderless` 三种形态。"></code>
 <code src="./demo/custom-tag-render.tsx" title="自定义标签样式" description="允许自定义选择标签的样式"></code>

packages/design/src/select/index.tsx

@@ -15,7 +15,7 @@ export type SelectLocale = AntLocale['Select'] & {
   placeholder?: string;
 };
 
-export interface SelectProps extends AntSelectProps {
+export interface SelectProps<T> extends AntSelectProps<T> {
   locale?: SelectLocale;
 }
 

packages/design/src/spin/index.md

@@ -15,7 +15,7 @@ demo:
 
 <!-- prettier-ignore -->
 <code src="./demo/basic.tsx" title="基本用法" description="一个简单的 loading 状态"></code>
-<code src="./demo/size.tsx" title="各种大小" description="小的用于文本加载，默认用于卡片容器级加载，大的用于**页面级**加载"></code>
+<code src="./demo/size.tsx" title="各种大小" description="小的用于文本加载，默认用于卡片容器级加载，大的用于页面级加载"></code>
 <code src="./demo/colored.tsx" title="彩色的加载指示符"></code>
 <code src="./demo/inside.tsx" title="放入一个容器中"></code>
 <code src="./demo/nested.tsx" title="卡片加载中" description="可以直接把内容内嵌到 `Spin` 中，将现有容器变为加载状态"></code>