Refac: rewrite transfer search with hook

components/transfer/search.tsx

@@ -13,50 +13,42 @@ export interface TransferSearchProps {
   disabled?: boolean;
 }
 
-export default class Search extends React.Component<TransferSearchProps, any> {
+export default function Search(props: TransferSearchProps) {
-  static defaultProps = {
+  const { placeholder = '', value, prefixCls, disabled, onChange, handleClear } = props;
-    placeholder: '',
-  };
 
-  handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+  const handleChange = React.useCallback(
-    const { onChange } = this.props;
+    (e: React.ChangeEvent<HTMLInputElement>) => {
       if (onChange) {
         onChange(e);
       }
-  };
+    }, [onChange],
+  )
 
-  handleClear = (e: React.MouseEvent<HTMLAnchorElement>) => {
+  const handleClearFn = (e: React.MouseEvent<HTMLAnchorElement>) => {
     e.preventDefault();
-    const { handleClear, disabled } = this.props;
     if (!disabled && handleClear) {
       handleClear(e);
     }
   };
 
-  render() {
-    const { placeholder, value, prefixCls, disabled } = this.props;
-    const icon =
-      value && value.length > 0 ? (
-        <a className={`${prefixCls}-action`} onClick={this.handleClear}>
-          <CloseCircleFilled />
-        </a>
-      ) : (
-        <span className={`${prefixCls}-action`}>
-          <SearchOutlined />
-        </span>
-      );
-
   return (
     <>
       <Input
         placeholder={placeholder}
         className={prefixCls}
         value={value}
-          onChange={this.handleChange}
+        onChange={handleChange}
         disabled={disabled}
       />
-        {icon}
+      {value && value.length > 0 ? (
+        <a className={`${prefixCls}-action`} onClick={handleClearFn}>
+          <CloseCircleFilled />
+        </a>
+      ) : (
+        <span className={`${prefixCls}-action`}>
+          <SearchOutlined />
+        </span>
+      )}
     </>  
-    );
+  )
-  }
 }