import React, { Fragment, useState, useEffect, useRef } from 'react';
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import PropTypes from 'prop-types';
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import { Button, Space } from 'antd';
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import { Modal } from '@arco-design/web-react';
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import { CloseCircleFilled, DownloadOutlined } from '@ant-design/icons';
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import { IconAttachment } from '@arco-design/web-react/icon';
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import { Document, Page, pdfjs } from 'react-pdf';
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import * as $$ from '@/utils/utility';
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import './index.less';
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// 设置pdf.js工作器路径
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pdfjs.GlobalWorkerOptions.workerSrc = `//cdnjs.cloudflare.com/ajax/libs/pdf.js/${pdfjs.version}/pdf.worker.min.js`;
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const appUrl = $$.appUrl;
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const MyPDF = ({ name, fileUrl }) => {
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const [visible, setVisible] = useState(false);
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const [numPages, setNumPages] = useState(null);
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const [pageNumber, setPageNumber] = useState(1);
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// 成功加载PDF文件时的回调
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function onDocumentLoadSuccess({ numPages }) {
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setNumPages(numPages);
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setPageNumber(1);
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}
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function changePage(offset) {
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setPageNumber((prevPageNumber) => prevPageNumber + offset);
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}
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function previousPage() {
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changePage(-1);
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}
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function nextPage() {
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changePage(1);
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}
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return (
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<div>
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{fileUrl ? (
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<div
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onClick={() => {
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setVisible(true);
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}}
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className="pdf-title"
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>
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<IconAttachment style={{ color: '#1A6FB8' }} />
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<div className="pdf-name">{name}</div>
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</div>
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) : (
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'-'
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)}
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<Modal
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style={{ width: '80%' }}
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closable={false}
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title={name}
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footer={
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<div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', gap: '10px' }}>
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<button
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type="button"
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disabled={pageNumber <= 1}
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onClick={previousPage}
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style={{ padding: '4px 15px', cursor: pageNumber <= 1 ? 'not-allowed' : 'pointer' }}
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>
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上一页
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</button>
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<p style={{ margin: 0 }}>
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第 {pageNumber} 页 / 共 {numPages || '--'} 页
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</p>
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<button
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type="button"
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disabled={pageNumber >= numPages}
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onClick={nextPage}
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style={{ padding: '4px 15px', cursor: pageNumber >= numPages ? 'not-allowed' : 'pointer' }}
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>
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下一页
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</button>
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<Button
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type="primary"
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icon={<DownloadOutlined />}
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onClick={() => {
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window.open(`${appUrl.fileUrl}${appUrl.fileDownUrl}${fileUrl.split('/').pop()}`);
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}}
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style={{ marginLeft: '10px' }}
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>
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下载
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</Button>
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</div>
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}
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centered
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unmountOnExit={true}
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visible={visible}
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onCancel={() => {
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setVisible(false);
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}}
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>
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<div style={{ width: '100%', height: 'calc(100vh - 200px)', display: 'flex', justifyContent: 'center', overflow: 'auto' }}>
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<Document
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file={`${appUrl.fileUrl}/${appUrl.sys}${fileUrl}`}
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onLoadSuccess={onDocumentLoadSuccess}
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loading={<div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', height: '100%' }}>PDF加载中...</div>}
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error={<div style={{ display: 'flex', justifyContent: 'center', alignItems: 'center', height: '100%' }}>PDF加载失败，请稍后重试</div>}
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>
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<Page pageNumber={pageNumber} renderTextLayer={false} renderAnnotationLayer={false} scale={1.2} />
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</Document>
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</div>
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</Modal>
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</div>
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);
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};
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MyPDF.propTypes = {
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title: PropTypes.any,
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visible: PropTypes.bool,
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onCancel: PropTypes.func,
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onOk: PropTypes.func,
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footer: PropTypes.any,
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onText: PropTypes.string,
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cancelText: PropTypes.string,
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zIndex: PropTypes.number,
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bodyStyle: PropTypes.object,
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closable: PropTypes.bool,
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centered: PropTypes.bool,
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};
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export default MyPDF;
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