fix: date-picker autoFocus not work

Author: tangjinzhou

components/date-picker/createPicker.js

@@ -169,6 +169,8 @@ export default function createPicker (TheCalendar, props) {
           <input
             ref='input'
             disabled={props.disabled}
+            onFocus={focus}
+            onBlur={blur}
             readOnly
             value={(inputValue && inputValue.format(props.format)) || ''}
             placeholder={placeholder}

components/date-picker/interface.js

@@ -31,6 +31,7 @@ export const PickerProps = () => ({
   pickerClass: PropTypes.string,
   pickerInputClass: PropTypes.string,
   timePicker: PropTypes.any,
+  autoFocus: PropTypes.bool,
 })
 
 export const SinglePickerProps = () => ({