I have a project, and this project contains several interfaces, and among these interfaces there is an interface for uploading an image, and the problem is in the deletion icon. When you click on it, a modal appears, but the element is deleted before the modal appears.
How can i solve the problem?
this file display a list of instructions that contains upload Image
import '../../../styles/input/index.scss';
import '../../../styles/dropzone/index.scss';
import { Button, Col, message, Modal, Row, Spin, Upload, UploadFile } from 'antd';
import { FunctionComponent, useCallback, useRef, useState } from 'react';
import { motion, useAnimation } from 'framer-motion';
import { defaultTranstion } from '../../../constants/framer';
import { Controller } from 'react-hook-form';
import FromElemnetWrapper from '../form-element-wrapper';
import { Delete, UploadCloud } from 'react-feather';
import { getBase64 } from '../../../utils/get-base64';
import _ from 'lodash';
import config from '../../../api/nuclearMedicineApi/config';
import { FormattedMessage } from 'react-intl';
import BasicModal from '../modal';
import { UploadOutlined } from '@ant-design/icons';
import axios from 'axios';
import { IFormError } from '../general-form-containner';
interface DropzoneProps {
name: string;
control: any;
rules?: any;
label: string;
disabled?: boolean;
multiple?: boolean;
accept?: string;
refType?: number;
defaultFileList?: any;
onRemove?: any;
customRequest?: (option: any) => void;
onProgress?: any;
}
const Dropzone: FunctionComponent<DropzoneProps> = ({
name,
control,
rules,
label,
disabled,
multiple,
accept,
refType,
defaultFileList,
onRemove,
customRequest,
onProgress
}) => {
const focusController = useAnimation();
const errorController = useAnimation();
const [previewVisible, setpreviewVisible] = useState(false);
const [previewImage, setpreviewImage] = useState('');
const handleCancel = () => setpreviewVisible(false);
const handlePreview = async (file: any) => {
if (!file.url && !file.preview) {
file.preview = await getBase64(file.originFileObj);
}
setpreviewImage(file?.preview ?? file.url);
setpreviewVisible(true);
};
const [isModalOpen, setIsModalOpen] = useState(false);
const [errors, setErrors] = useState<IFormError[]>([]);
const [visibleModal, setVisibleModal] = useState(false);
const [removePromise, setRemovePromise] = useState();
const [deleteVisible, setdeleteVisible] = useState<boolean>(false);
const onDeleteHandle = () => {
setdeleteVisible(false);
};
const deletehandleCancel = () => {
setdeleteVisible(false);
};
let resolvePromiseRef = useRef<((value: boolean) => void) | undefined>();
// let resolvePromiseRef = useRef<HTMLInputElement | null>(null)
const handleRemove = useCallback(() =>{
const promise = new Promise(resolve => {
resolvePromiseRef.current = resolve
});
setVisibleModal(true);
return promise;
}, [])
const handleOkModalRemove = useCallback(() => {
if (resolvePromiseRef.current) {
resolvePromiseRef.current(true)
}
}, [removePromise]);
const handleCancelModalRemove = useCallback(() => {
if (resolvePromiseRef.current) {
resolvePromiseRef.current(false);
setVisibleModal(false)
}
}, [removePromise]);
return (
<>
<FromElemnetWrapper
focusController={focusController}
errorController={errorController}
label={label}
required={rules.required?.value}
>
<Controller
control={control}
name={name}
rules={rules}
render={({
field: { onChange, onBlur, value, name, ref },
fieldState: { invalid, error },
}) => {
if (invalid) {
errorController.start({ scale: 80 });
} else {
errorController.start(
{ scale: 0 },
{ ease: defaultTranstion.ease.reverse() },
);
}
return (
<div
onBlur={() => {
onBlur();
focusController.start({ scale: 0 });
}}
onFocus={() => {
focusController.start({ scale: 80 });
}}
className='relative'
>
<div className='upload-container'>
<form
className='dropzone needsclick'
id='demo-upload'
action='/upload'
>
{/* <> */}
<Upload
action={`${config.baseUrl}api/services/app/Attachment/Upload`}
headers={config.headers}
ref={ref}
multiple={multiple}
disabled={disabled}
data={{ RefType: refType }}
listType='picture'
fileList={value}
id={name}
accept={accept}
onPreview={handlePreview}
onRemove={handleRemove}
iconRender={
() => {
return <Spin style={{ marginBottom: '12px', paddingBottom: '12px' }}></Spin>
}
}
progress={{
strokeWidth: 3,
strokeColor: {
"0%": "#f0f",
"100%": "#ff0"
},
style: { top: 12 }
}}
beforeUpload={
(file) => {
console.log({ file });
return true
}
}
// onProgress= {(event: any) => (event.loaded / event.total) * 100}
// onChange={(e) =>
// onChange(e.fileList)
// }
// onChange={(response) => {
// console.log('response: ', response);
// if (response.file.status !== 'uploading') {
// console.log(response.file, response.fileList);
// }
// if (response.file.status === 'done') {
// message.success(`${response.file.name}
// file uploaded successfully`);
// } else if (response.file.status === 'error') {
// message.error(`${response.file.name}
// file upload failed.`);
// }
// else if (response.file.status === 'removed') {
// message.error(`${response.file.name}
// file upload removed.`);
// }
// }}
>
<div className='upload-button'>
<div className='wrapper'>
<motion.div
className='fas fa-angle-double-up'
whileHover={{
y: [
0, -2, 2,
0,
],
transition: {
duration: 1.5,
ease: 'easeInOut',
yoyo: Infinity,
},
}}
>
<UploadCloud
style={{
margin: '.2rem',
display:
'inline-block',
}}
color='white'
size={20}
/>
Upload
</motion.div>
</div>
</div>
</Upload>
{/*
<Modal
title="Are you sure？"
visible={visibleModal}
onOk={handleOkModalRemove}
onCancel={handleCancelModalRemove}
/> */}
<BasicModal
header={
<>
<FormattedMessage id={'confirmdeletion'} />
</>
}
headerType='error'
content={
<>
<Row>
<Col span={8} offset={4}>
<Button
type='primary'
className='savebtn'
onClick={onDeleteHandle}
style={{
cursor:
Object.keys(errors).length !==
0
? 'not-allowed'
: 'pointer',
}}
>
<FormattedMessage id={'affirmation'} />
</Button>
</Col>
<Col span={8} offset={4}>
<Button
type='default'
className='savebtn'
onClick={deletehandleCancel}
style={{
cursor:
Object.keys(errors).length !==
0
? 'not-allowed'
: 'pointer',
}}
>
<FormattedMessage id={'cancel'} />
</Button>
</Col>
</Row>
</>
}
isOpen={visibleModal}
footer={false}
width='35vw'
handleCancel={handleCancelModalRemove}
handleOk={handleOkModalRemove}
/>
{/* {_.isEmpty(value) && (
<div className='dz-message needsclick'>
<FormattedMessage id='dropfileshere' />
</div>
)} */}
<BasicModal
isOpen={previewVisible}
header={<FormattedMessage id="Preview image" />}
footer={false}
handleCancel={handleCancel}
content={<img
alt='example'
style={{ width: '100%' }}
src={previewImage}
/>}
/>
{/* </> */}
</form>
</div>
{invalid && (
<p className='form-element-error'>
{error?.message}
</p>
)}
</div>
);
}}
/>
</FromElemnetWrapper>
</>
);
};
export default Dropzone;
CodePudding user response：
Why it doesn't work?
https://ant.design/components/upload
onRemove - A callback function, will be executed when removing file button is clicked, remove event will be prevented when return value is false or a Promise which resolve(false) or reject
You have to return a promise which resolves to false or return false
How to solve it?
You have to return a promise so first of all, you need a ref or a state to store resolve function of that promise so you can call it in modal
const resolvePromiseRef = useRef<((value: boolean) => void) | undefined>();
Then you will need to assign the resolve function to the ref and return the promise
Now onRemove will wait for your promise to resolve
const handleRemove = () =>{
const promise = new Promise(resolve => {
resolvePromiseRef.current = resolve
});
setVisibleModal(true);
return promise;
}
Now your functions handlers
const handleOkModalRemove = useCallback(() => {
if (resolvePromiseRef.current) {
resolvePromiseRef.current(true)
}
}, [removePromise]);
const handleCancelModalRemove = useCallback(() => {
if (resolvePromiseRef.current) {
resolvePromiseRef.current(false)
}
}, [removePromise]);
You can also use the state, but I recommend ref because it doesn't rerender the component when changed.