505 lines
16 KiB
TypeScript
505 lines
16 KiB
TypeScript
/**
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* 文件预览组件
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* 显示文档内容和评查点高亮
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*/
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import { useState, useEffect, useRef, ChangeEvent } from 'react';
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import { CollaboraViewer, type CollaboraViewerHandle } from '~/components/collabora/CollaboraViewer';
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import { requestPageInfo, customGotoPage } from '~/components/collabora/lib';
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import { PdfPreview } from './previewComponents/PdfPreview';
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import { toastService } from '../ui/Toast';
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// 直接从ReviewPointsList导入类型，避免循环依赖
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import { type ReviewPoint } from './ReviewPointsList';
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// 定义文档内容类型
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interface FileContent {
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title: string;
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contractNumber: string;
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path: string;
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ocrResult?: {
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__meta?: {
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page_offset?: number;
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};
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}; // 添加ocrResult属性
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parties: {
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partyA: {
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name: string;
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address: string;
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representative: string;
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phone: string;
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};
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partyB: {
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name: string;
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address: string;
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representative: string;
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phone: string;
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};
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};
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sections: {
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title: string;
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content: string;
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}[];
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template_contract_path?: string;
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}
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interface FilePreviewProps {
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fileContent: FileContent;
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reviewPoints?: ReviewPoint[]; // 设为可选
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activeReviewPointResultId: string | null;
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targetPage?: number; // 新增目标页码参数
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charPositions?: Array<{ box: number[][], char: string, score: number }>; // 字符位置信息
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isStructuredView?: boolean; // 是否显示结构化视图
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userInfo?: {
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sub: string;
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nick_name: string;
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}; // 用户信息（用于 Collabora）
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}
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// export function FilePreview({ fileContent, reviewPoints, activeReviewPointResultId, targetPage }: FilePreviewProps) {
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export function FilePreview({ fileContent, activeReviewPointResultId, targetPage, charPositions, isStructuredView = false, userInfo }: FilePreviewProps) {
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// 获取文件类型
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const real_path = fileContent.path || fileContent.template_contract_path || '';
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const fileExtension = real_path.split('.').pop()?.toLowerCase();
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const isDocx = fileExtension === 'docx';
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const isPdf = fileExtension === 'pdf';
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// ✅ 将所有hooks移到条件return之前，确保遵守React Hooks规则
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// Refs
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const contentRef = useRef<HTMLDivElement>(null);
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const collaboraViewerRef = useRef<CollaboraViewerHandle>(null);
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const prevTargetPageRef = useRef<number | undefined>(undefined);
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const lastMousePosRef = useRef({ x: 0, y: 0 });
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// States
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const [numPages, setNumPages] = useState<number | null>(null);
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const [pageInputValue, setPageInputValue] = useState<string>('');
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const [dragMode, setDragMode] = useState(false);
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const [isDragging, setIsDragging] = useState(false);
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const [dragCursor, setDragCursor] = useState('default');
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// ✅ 将所有useEffect移到条件return之前
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// DOCX 页数获取: 使用 requestPageInfo 方法
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useEffect(() => {
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if (!isDocx || isPdf) return; // PDF文件不需要执行
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let intervalCleared = false;
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// 等待 CollaboraViewer 准备就绪
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const checkInterval = setInterval(() => {
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if (intervalCleared) return;
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if (!collaboraViewerRef.current?.isReady) {
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console.log('[FilePreview] 等待 Collabora 就绪...');
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return;
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}
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clearInterval(checkInterval);
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intervalCleared = true;
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const iframeWindow = collaboraViewerRef.current.getIframeWindow?.();
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if (!iframeWindow) {
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console.warn('[FilePreview] 无法获取 iframe window');
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return;
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}
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// 使用 requestPageInfo 获取页数
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requestPageInfo(iframeWindow)
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.then((info) => {
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setNumPages(info.totalPages);
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})
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.catch((error) => {
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console.warn('[FilePreview] 获取 DOCX 页数失败:', error.message);
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});
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}, 500);
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// 清理定时器
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return () => {
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clearInterval(checkInterval);
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};
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}, [isDocx, isPdf]);
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// 监听鼠标离开窗口事件
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useEffect(() => {
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if (isPdf) return; // PDF不需要拖拽功能
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const handleMouseLeave = () => {
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if (dragMode && isDragging) {
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setIsDragging(false);
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setDragCursor('grab');
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}
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};
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const handleMouseUp = () => {
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if (!dragMode) return;
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setIsDragging(false);
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setDragCursor('grab');
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};
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document.addEventListener('mouseleave', handleMouseLeave);
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document.addEventListener('mouseup', handleMouseUp as EventListener);
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return () => {
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document.removeEventListener('mouseleave', handleMouseLeave);
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document.removeEventListener('mouseup', handleMouseUp as EventListener);
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};
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}, [isDragging, dragMode, isPdf]);
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// 处理页面跳转
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useEffect(() => {
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if (isPdf) return; // PDF由PdfPreview处理
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// 如果有目标页码，并且与上次相同，提示用户
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if(targetPage && numPages && targetPage <= numPages && targetPage === prevTargetPageRef.current){
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// toastService.success(`已跳转至目标页码`);
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}
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// 如果有目标页码，并且与上次不同或activeReviewPointId变化了，则执行跳转
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if (targetPage && numPages && targetPage <= numPages) {
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prevTargetPageRef.current = targetPage;
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let newTargetPage = targetPage;
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// 页码偏移量
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try {
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// 安全地访问ocrResult
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if (fileContent.ocrResult && fileContent.ocrResult.__meta && fileContent.ocrResult.__meta.page_offset) {
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// 可以根据需要使用page_offset调整目标页面
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newTargetPage = targetPage + fileContent.ocrResult.__meta.page_offset;
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}
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} catch (error) {
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console.error("访问ocrResult时出错:", error);
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toastService.error("访问ocrResult时出错:" + (error instanceof Error ? error.message : '未知错误'));
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}
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const pageElementId = `page-${newTargetPage}${isStructuredView ? '-structured' : ''}`;
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const pageElement = document.getElementById(pageElementId);
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if (pageElement) {
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pageElement.scrollIntoView({ behavior: 'smooth', block: 'start' });
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} else {
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console.warn(`未找到页面元素: ${pageElementId}`);
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}
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}
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}, [targetPage, numPages, fileContent, activeReviewPointResultId, isStructuredView, isPdf]);
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// 调试日志
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// console.log('[FilePreview] 组件渲染', {
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// real_path,
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// fileExtension,
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// isDocx,
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// isPdf,
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// hasPath: !!fileContent.path,
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// hasTemplatePath: !!fileContent.template_contract_path
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// });
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// 如果是PDF文件，直接使用PdfPreview组件
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if (isPdf && real_path) {
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// console.log('[FilePreview] 渲染PDF预览', { real_path, targetPage, charPositions });
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const pageOffset = fileContent.ocrResult?.__meta?.page_offset || 0;
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return (
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<PdfPreview
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filePath={real_path}
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targetPage={targetPage}
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charPositions={charPositions}
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isStructuredView={isStructuredView}
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activeReviewPointResultId={activeReviewPointResultId}
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pageOffset={pageOffset}
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/>
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);
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}
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// DOCX 和其他文件类型继续使用原有逻辑
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// 放大文档（仅用于 DOCX）
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const handleZoomIn = () => {
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if (!collaboraViewerRef.current?.isReady) {
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toastService.warning('文档尚未加载完成，请稍候...');
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return;
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}
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collaboraViewerRef.current?.unoCommands.zoomIn();
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};
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// 缩小文档（仅用于 DOCX）
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const handleZoomOut = () => {
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if (!collaboraViewerRef.current?.isReady) {
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toastService.warning('文档尚未加载完成，请稍候...');
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return;
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}
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collaboraViewerRef.current?.unoCommands.zoomOut();
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};
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// 切换拖拽模式
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const toggleDragMode = () => {
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setDragMode(prev => !prev);
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setDragCursor(prev => prev === 'default' ? 'grab' : 'default');
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setIsDragging(false);
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};
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// 处理拖拽开始
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const handleMouseDown = (e: React.MouseEvent<HTMLButtonElement>) => {
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if (!dragMode || e.button !== 0) return; // 只在拖拽模式下响应左键点击
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// 防止选中文本
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e.preventDefault();
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// 设置拖拽状态
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setIsDragging(true);
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setDragCursor('grabbing');
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// 记录鼠标初始位置
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lastMousePosRef.current = {
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x: e.clientX,
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y: e.clientY
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};
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};
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// 处理拖拽过程
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const handleMouseMove = (e: React.MouseEvent<HTMLButtonElement>) => {
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if (!dragMode || !isDragging || !contentRef.current) return;
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// 计算鼠标移动距离
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const dx = e.clientX - lastMousePosRef.current.x;
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const dy = e.clientY - lastMousePosRef.current.y;
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// 更新容器滚动位置
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contentRef.current.scrollLeft -= dx;
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contentRef.current.scrollTop -= dy;
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// 更新鼠标位置记录
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lastMousePosRef.current = {
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x: e.clientX,
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y: e.clientY
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};
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};
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// 处理拖拽结束
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const handleMouseUp = () => {
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if (!dragMode) return;
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setIsDragging(false);
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setDragCursor('grab');
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};
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// 获取评查点对应的样式类
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// const getHighlightClass = (status: string) => {
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// switch (status) {
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// case 'warning':
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// return 'warning';
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// case 'error':
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// return 'error';
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// case 'success':
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// return 'success';
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// default:
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// return 'warning';
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// }
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// };
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// 处理页码输入变化
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const handlePageInputChange = (e: ChangeEvent<HTMLInputElement>) => {
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// 只允许输入数字
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const value = e.target.value.replace(/\D/g, '');
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setPageInputValue(value);
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};
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// 处理页码跳转（仅用于 DOCX）
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const handlePageJump = async () => {
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if (!pageInputValue) return;
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const targetPageNum = parseInt(pageInputValue, 10);
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const iframeWindow = collaboraViewerRef.current?.getIframeWindow?.();
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if (!iframeWindow) {
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toastService.warning('文档尚未加载完成，请稍候...');
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return;
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}
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if (targetPageNum > 0) {
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try {
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await customGotoPage(iframeWindow, targetPageNum);
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setPageInputValue('');
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} catch (error) {
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const errorMessage = error instanceof Error ? error.message : '未知错误';
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toastService.error(`跳转失败: ${errorMessage}`);
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}
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} else {
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toastService.warning('请输入有效页码');
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setPageInputValue('');
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}
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};
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// 处理回车键跳转
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const handlePageInputKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
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if (e.key === 'Enter') {
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handlePageJump();
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}
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};
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// 滚动到顶部（仅用于 DOCX）
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const handleScrollToTop = () => {
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if (!collaboraViewerRef.current?.isReady) {
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toastService.warning('文档尚未加载完成，请稍候...');
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return;
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}
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collaboraViewerRef.current?.unoCommands.scrollToTop();
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};
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// 渲染文档内容
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const renderDocumentContent = () => {
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// 如果路径无效，显示错误信息
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if (!real_path) {
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if(!fileContent.template_contract_path){
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return (
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<div className="text-red-500 p-4">
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<p>无法加载文件：合同模板未上传</p>
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</div>
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);
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}
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return (
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<div className="text-red-500 p-4">
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<p>无法加载文件：路径无效</p>
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</div>
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);
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}
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// 根据文件类型选择不同的渲染方式
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// 注意：PDF 文件已在组件开头使用 PdfPreview 组件提前返回
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if (fileExtension === 'docx') {
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// DOCX文件使用Collabora Online预览
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return (
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<CollaboraViewer
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ref={collaboraViewerRef}
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fileId={real_path}
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mode="edit"
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userId={userInfo?.sub || 'guest'}
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userName={userInfo?.nick_name || '访客'}
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/>
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);
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} else {
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// 非PDF/DOCX文件显示不支持消息
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return (
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<div className="text-gray-500 p-4">
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<p>暂不支持预览此类型的文件：{fileExtension}</p>
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</div>
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);
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}
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};
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return (
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<div className="file-preview">
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<div className="file-preview-header px-2 text-xs sm:text-xs md:text-sm max-w-full flex items-center justify-between min-w-0">
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<div className="flex items-center min-w-0 flex-shrink-0">
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<i className={`${isStructuredView ? 'ri-file-list-line' : 'ri-file-text-line'} text-primary mr-2 flex-shrink-0`}></i>
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<span className="font-medium text-primary truncate max-w-[120px]" title={isStructuredView ? '模板预览' : '文件预览'}>
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{isStructuredView ? '模板预览' : '文件预览'}
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</span>
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</div>
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<div className="file-preview-actions flex items-center ml-2 min-w-0 flex-1 justify-end overflow-hidden">
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<button
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className="ant-btn ant-btn-sm ant-btn-default py-0 px-1 text-xs max-h-6 leading-5 flex-shrink-0"
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onClick={handleScrollToTop}
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title="返回顶部"
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>
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<i className="ri-arrow-up-double-line"></i>
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<span className="ml-1 hidden sm:hidden md:hidden lg:hidden xl:inline truncate max-w-[60px]">返回顶部</span>
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</button>
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<button
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className="ant-btn ant-btn-sm ant-btn-default py-0 px-1 text-xs max-h-6 leading-5 flex-shrink-0"
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onClick={handleZoomIn}
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title="放大"
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>
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<i className="ri-zoom-in-line"></i>
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</button>
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<button
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className="ant-btn ant-btn-sm ant-btn-default py-0 px-1 text-xs max-h-6 leading-5 flex-shrink-0"
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onClick={handleZoomOut}
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title="缩小"
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>
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<i className="ri-zoom-out-line"></i>
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</button>
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{/* 页码跳转控件 */}
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<div className="inline-flex items-center ml-2 flex-shrink-0">
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<input
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type="text"
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className="ant-input ant-input-sm py-0 px-1 text-xs max-h-6 leading-5 w-[2.5rem] text-center
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focus:outline-none focus:ring-1 focus:ring-green-900"
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placeholder="页码"
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value={pageInputValue}
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onChange={handlePageInputChange}
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onKeyDown={handlePageInputKeyDown}
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/>
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<button
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className="ant-btn ant-btn-sm ant-btn-default py-0 px-1 text-xs max-h-6 leading-5 ml-1"
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onClick={handlePageJump}
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disabled={!numPages}
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title="跳转到页面"
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>
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<i className="ri-arrow-right-line"></i>
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</button>
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{numPages && (
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<span className="ml-1 text-xs text-gray-500 hidden sm:hidden md:hidden lg:hidden xl:inline whitespace-nowrap">
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/ {numPages}
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</span>
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)}
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</div>
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<button
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className={`ant-btn ant-btn-sm ant-btn-default py-0 px-1 text-xs max-h-6 leading-5 ml-2 flex-shrink-0 ${dragMode ? 'active bg-green-300' : ''}`}
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title="切换拖拽模式"
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aria-pressed={dragMode}
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onClick={toggleDragMode}
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>
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<i className="ri-drag-move-line"></i>
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<span className="ml-1 hidden sm:hidden md:hidden lg:hidden xl:inline truncate max-w-[80px]">
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拖拽模式{dragMode ? '(已激活)' : ''}
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</span>
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</button>
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</div>
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</div>
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<div
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className="file-preview-content"
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ref={contentRef}
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style={{
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maxHeight: 'calc(100vh - 150px)',
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overflowY: 'auto',
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overflowX: 'auto',
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cursor: dragCursor,
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userSelect: dragMode ? 'none' : 'auto', // 拖拽模式下防止文本被选中
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}}
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>
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<button
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className="pdf-interactive-container"
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aria-label="PDF文档查看区域"
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onMouseDown={handleMouseDown}
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onMouseMove={handleMouseMove}
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onMouseUp={handleMouseUp}
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onKeyDown={(e) => {
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// 添加键盘导航支持
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const scrollAmount = 50;
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if (e.key === 'ArrowUp') {
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if (contentRef.current) contentRef.current.scrollTop -= scrollAmount;
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e.preventDefault();
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} else if (e.key === 'ArrowDown') {
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if (contentRef.current) contentRef.current.scrollTop += scrollAmount;
|
||
e.preventDefault();
|
||
} else if (e.key === 'ArrowLeft') {
|
||
if (contentRef.current) contentRef.current.scrollLeft -= scrollAmount;
|
||
e.preventDefault();
|
||
} else if (e.key === 'ArrowRight') {
|
||
if (contentRef.current) contentRef.current.scrollLeft += scrollAmount;
|
||
e.preventDefault();
|
||
}
|
||
}}
|
||
style={{
|
||
position: 'relative',
|
||
height: '100%',
|
||
width: '100%',
|
||
display: 'block',
|
||
border: 'none',
|
||
background: 'transparent',
|
||
textAlign: 'center',
|
||
padding: 0
|
||
}}
|
||
>
|
||
{renderDocumentContent()}
|
||
</button>
|
||
</div>
|
||
</div>
|
||
);
|
||
}
|