我有一个项目,这个项目有几个接口,这些接口中有一个上传图片的接口,问题出在删除图标上,点击后出现了一个模态,但是在模态出现之前元素就被删除了。
我怎样才能解决这个问题呢?
此文件显示包含上载图像的说明列表
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;
1条答案
按热度按时间vwkv1x7d1#
为什么不起作用?
https://ant.design/components/upload
onRemove -一个回调函数,将在单击删除文件按钮时执行,当返回值为假或承诺解决(假)或拒绝时,将阻止删除事件
必须返回解析为false的承诺或返回false
如何解决?
必须返回一个promise,因此首先,需要一个ref或state来存储该promise的resolve函数,以便可以在模态中调用它
然后,需要将
resolve
函数赋给ref并返回promise现在
onRemove
就等你的承诺来解决现在您的函数处理程序
您也可以使用state,但我推荐使用ref,因为它在组件更改时不会重新呈现组件。