JOJO
e4a663594d
- 集成 AndroidPdfViewer (mhiew fork) 实现不依赖浏览器的 PDF 预览 - 新增 PdfPreviewActivity 与 JS Bridge (AndroidPdfBridge) - ShowFileCard 在 Android App 内对 PDF 显示「预览」按钮，不内嵌 iframe - 新增 /api/file/content 后端接口用于文件内容 inline 预览 - 前端支持 <show_file> 标签与 download:// 链接渲染 - 更新 Android 版本号至 1.0.35
498 lines
13 KiB
Vue
498 lines
13 KiB
Vue
<template>
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<div class="show-file-card">
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<div class="sfc-header">
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<span class="sfc-file-icon" aria-hidden="true"></span>
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<span class="sfc-name" :title="displayName">{{ displayName }}</span>
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<div class="sfc-actions">
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<button
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v-if="canAndroidPdfPreview"
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type="button"
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class="sfc-btn sfc-btn-preview"
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@click="previewPdf"
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>
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预览
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</button>
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<button
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v-if="canCopy"
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type="button"
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class="sfc-btn"
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@click="copyContent"
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>
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{{ copied ? '已复制' : '复制' }}
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</button>
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<button
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type="button"
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class="sfc-btn sfc-btn-download"
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@click="handleDownload"
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>
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下载
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</button>
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</div>
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</div>
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<div class="sfc-preview" v-if="canPreview">
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<div class="sfc-loading" v-if="loading">
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<span class="sfc-spinner"></span>
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<span>加载中...</span>
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</div>
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<div class="sfc-error" v-else-if="error">{{ error }}</div>
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<template v-else-if="fileType === 'text' || fileType === 'code' || fileType === 'json'">
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<pre class="sfc-code" v-html="highlightedCode"></pre>
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</template>
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<template v-else-if="fileType === 'csv'">
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<div class="sfc-csv-scroll">
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<table class="sfc-csv-table">
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<thead>
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<tr>
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<th v-for="(col, i) in csvHeader" :key="i">{{ col }}</th>
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</tr>
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</thead>
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<tbody>
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<tr v-for="(row, ri) in csvRows" :key="ri">
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<td v-for="(cell, ci) in row" :key="ci">{{ cell }}</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="sfc-csv-meta" v-if="csvTruncated">
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仅显示前 {{ csvRows.length }} 行，完整内容请下载查看
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</div>
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</template>
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<template v-else-if="fileType === 'markdown'">
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<div class="sfc-md" v-html="renderedMarkdown"></div>
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</template>
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<template v-else-if="fileType === 'image'">
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<img
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class="sfc-image"
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:src="contentUrl"
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:alt="displayName"
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@click="openFullImage"
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@error="onImageError"
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/>
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</template>
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<template v-else-if="fileType === 'pdf'">
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<iframe
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class="sfc-pdf"
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:src="contentUrl"
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:title="displayName"
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></iframe>
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</template>
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</div>
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</div>
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</template>
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<script setup lang="ts">
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import { ref, computed, onMounted, onBeforeUnmount } from 'vue';
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import Prism from 'prismjs';
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import { renderMarkdown } from '../../composables/useMarkdownRenderer';
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defineOptions({ name: 'ShowFileCard' });
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const props = defineProps<{
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path: string;
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name?: string;
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type?: string;
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description?: string;
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preview?: string;
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}>();
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// ---- 环境检测 ----
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const isAndroidApp = typeof window !== 'undefined' && Boolean((window as any).AndroidPdfBridge);
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// ---- 状态 ----
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const loading = ref(false);
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const error = ref('');
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const rawContent = ref('');
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const copied = ref(false);
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let objectUrl: string | null = null;
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const contentUrl = ref('');
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// ---- 计算属性 ----
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const fileType = computed(() => props.type || inferShowFileType(props.path));
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const displayName = computed(() => props.name || props.path.split('/').pop() || 'file');
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const canPreview = computed(() => {
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if (props.preview === 'off') return false;
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// Android App 内 PDF 不走 iframe 内嵌预览，由原生 PdfPreviewActivity 处理
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if (isAndroidApp && fileType.value === 'pdf') return false;
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return ['text', 'code', 'json', 'csv', 'markdown', 'image', 'pdf'].includes(fileType.value);
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});
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const canAndroidPdfPreview = computed(() => {
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return isAndroidApp && fileType.value === 'pdf';
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});
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const canCopy = computed(() => ['text', 'code', 'json', 'csv', 'markdown'].includes(fileType.value));
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const metaText = computed(() => {
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if (!rawContent.value) return '';
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const sizeKB = (new Blob([rawContent.value]).size / 1024).toFixed(1);
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return `${sizeKB} KB`;
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});
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const highlightedCode = computed(() => {
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if (!rawContent.value) return '';
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let content = rawContent.value;
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if (fileType.value === 'json') {
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try { content = JSON.stringify(JSON.parse(content), null, 2); } catch {}
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}
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try {
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const grammar = Prism.languages[displayLang.value];
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if (grammar) return Prism.highlight(content, grammar, displayLang.value);
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} catch {}
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return content.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>');
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});
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const renderedMarkdown = computed(() => {
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if (!rawContent.value) return '';
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return renderMarkdown(rawContent.value, false);
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});
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const csvParsed = computed(() => {
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if (fileType.value !== 'csv' || !rawContent.value) return null;
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const lines = rawContent.value.split(/\r?\n/).filter(l => l.trim());
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const parseLine = (line: string): string[] => {
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const result: string[] = [];
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let current = '';
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let inQuote = false;
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for (let i = 0; i < line.length; i++) {
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const ch = line[i];
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if (inQuote) {
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if (ch === '"' && line[i + 1] === '"') { current += '"'; i++; }
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else if (ch === '"') inQuote = false;
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else current += ch;
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} else {
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if (ch === '"') inQuote = true;
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else if (ch === ',') { result.push(current); current = ''; }
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else current += ch;
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}
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}
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result.push(current);
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return result;
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};
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const maxRows = 100;
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const header = parseLine(lines[0] || '');
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const rows = lines.slice(1, maxRows + 1).map(parseLine);
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return { header, rows, truncated: lines.length > maxRows + 1 };
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});
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const csvHeader = computed(() => csvParsed.value?.header || []);
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const csvRows = computed(() => csvParsed.value?.rows || []);
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const csvTruncated = computed(() => csvParsed.value?.truncated || false);
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// ---- 方法 ----
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function inferShowFileType(path: string): string {
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const extMap: Record<string, string> = {
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'.txt': 'text',
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'.md': 'markdown', '.markdown': 'markdown',
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'.json': 'json', '.json5': 'json',
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'.csv': 'csv', '.tsv': 'csv',
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'.yaml': 'text', '.yml': 'text', '.toml': 'text',
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'.ini': 'text', '.cfg': 'text', '.conf': 'text', '.log': 'text',
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'.js': 'code', '.ts': 'code', '.jsx': 'code', '.tsx': 'code',
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'.vue': 'code', '.py': 'code', '.rb': 'code', '.go': 'code',
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'.rs': 'code', '.java': 'code', '.c': 'code', '.h': 'code',
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'.cpp': 'code', '.hpp': 'code', '.cs': 'code', '.php': 'code',
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'.swift': 'code', '.kt': 'code', '.sh': 'code', '.bash': 'code',
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'.html': 'code', '.htm': 'code', '.css': 'code', '.scss': 'code',
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'.less': 'code', '.xml': 'code', '.svg': 'image', '.sql': 'code',
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'.png': 'image', '.jpg': 'image', '.jpeg': 'image',
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'.gif': 'image', '.webp': 'image', '.bmp': 'image', '.ico': 'image',
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'.avif': 'image',
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'.pdf': 'pdf'
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};
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const lowerPath = path.toLowerCase();
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const dotIdx = lowerPath.lastIndexOf('.');
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if (dotIdx >= 0) {
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const ext = lowerPath.slice(dotIdx);
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if (extMap[ext]) return extMap[ext];
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}
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return 'binary';
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}
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function buildContentUrl() {
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return `/api/file/content?path=${encodeURIComponent(props.path)}`;
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}
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async function loadContent() {
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loading.value = true;
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error.value = '';
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try {
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if (['image', 'pdf'].includes(fileType.value)) {
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contentUrl.value = buildContentUrl();
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} else {
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const resp = await fetch(buildContentUrl());
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if (!resp.ok) {
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let msg = resp.statusText;
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try { const j = await resp.json(); msg = j.error || msg; } catch {}
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error.value = msg || '加载失败';
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return;
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}
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rawContent.value = await resp.text();
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}
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} catch (e) {
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error.value = (e as Error).message || '网络错误';
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} finally {
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loading.value = false;
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}
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}
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async function handleDownload() {
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const url = `/api/download/file?path=${encodeURIComponent(props.path)}`;
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const name = props.path.split('/').pop() || 'file';
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try {
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const resp = await fetch(url);
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if (!resp.ok) {
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let msg = resp.statusText;
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try { const j = await resp.json(); msg = j.error || msg; } catch {}
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throw new Error(msg || '下载失败');
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}
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const blob = await resp.blob();
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const blobUrl = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = blobUrl;
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a.download = name;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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setTimeout(() => URL.revokeObjectURL(blobUrl), 1000);
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} catch (e) {
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console.warn('[ShowFileCard] 下载失败:', e);
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window.open(url, '_blank');
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}
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}
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async function copyContent() {
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if (!rawContent.value) return;
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try {
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await navigator.clipboard.writeText(rawContent.value);
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copied.value = true;
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setTimeout(() => { copied.value = false; }, 2000);
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} catch {}
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}
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function openFullImage() {
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if (contentUrl.value) window.open(contentUrl.value, '_blank');
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}
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function previewPdf() {
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const bridge = (window as any).AndroidPdfBridge;
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if (bridge && typeof bridge.previewPdf === 'function') {
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bridge.previewPdf(contentUrl.value);
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}
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}
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function onImageError() {
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error.value = '图片加载失败';
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}
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onBeforeUnmount(() => {
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if (objectUrl) URL.revokeObjectURL(objectUrl);
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});
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onMounted(() => {
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if (canPreview.value) {
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loadContent();
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}
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});
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</script>
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<style lang="scss" scoped>
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.show-file-card {
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border: 1px solid var(--border-default);
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border-radius: 8px;
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background: var(--surface-base);
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overflow: hidden;
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margin: 8px 0;
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font-size: 13px;
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}
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.sfc-header {
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min-height: 44px;
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background: var(--surface-raised);
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padding: 0 12px 0 18px;
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display: flex;
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justify-content: space-between;
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align-items: center;
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border-bottom: 1px solid var(--border-default);
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gap: 12px;
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}
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.sfc-file-icon {
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flex-shrink: 0;
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width: 16px;
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height: 16px;
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background-color: var(--text-secondary);
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-webkit-mask: url('/static/icons/file-down.svg') no-repeat center / contain;
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mask: url('/static/icons/file-down.svg') no-repeat center / contain;
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}
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.sfc-name {
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flex: 1;
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min-width: 0;
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font-weight: 500;
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color: var(--text-primary);
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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.sfc-actions {
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flex-shrink: 0;
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display: flex;
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gap: 6px;
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}
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.sfc-btn {
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display: inline-flex;
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align-items: center;
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justify-content: center;
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height: 28px;
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padding: 0 10px;
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border: 1px solid var(--border-default);
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border-radius: 6px;
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background: var(--surface-base);
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color: var(--text-secondary);
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font-size: 12px;
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cursor: pointer;
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transition: background 0.15s, border-color 0.15s;
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&:hover {
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background: var(--surface-muted);
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border-color: var(--border-strong);
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}
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}
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.sfc-btn-download {
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color: var(--accent-primary);
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}
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.sfc-btn-preview {
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color: var(--accent-primary);
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}
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.sfc-preview {
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border-top: 1px solid var(--border-default);
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max-height: 360px;
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overflow: auto;
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position: relative;
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background: var(--surface-base);
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scrollbar-width: thin;
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scrollbar-color: var(--text-muted) transparent;
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}
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.sfc-preview::-webkit-scrollbar {
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width: 8px;
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}
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.sfc-preview::-webkit-scrollbar-track {
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background: transparent;
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}
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.sfc-preview::-webkit-scrollbar-thumb {
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background: var(--text-muted);
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border-radius: 8px;
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}
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.sfc-loading,
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.sfc-error {
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display: flex;
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align-items: center;
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gap: 8px;
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padding: 20px;
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color: var(--text-tertiary);
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justify-content: center;
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font-size: 12px;
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}
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.sfc-error {
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color: var(--state-error);
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}
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.sfc-spinner {
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width: 14px;
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height: 14px;
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border: 2px solid var(--border-default);
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border-top-color: var(--accent-primary);
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border-radius: 50%;
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animation: sfc-spin 0.8s linear infinite;
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}
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@keyframes sfc-spin {
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to { transform: rotate(360deg); }
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}
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.sfc-code {
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margin: 0;
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padding: 12px;
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font-family: 'SF Mono', 'Monaco', 'Menlo', 'Consolas', monospace;
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font-size: 12px;
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line-height: 1.5;
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white-space: pre-wrap;
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word-break: break-word;
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color: var(--text-primary);
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background: var(--surface-base);
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}
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.sfc-csv-scroll {
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overflow: auto;
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max-height: 350px;
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}
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.sfc-csv-table {
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width: 100%;
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border-collapse: collapse;
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font-size: 12px;
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}
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.sfc-csv-table th,
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.sfc-csv-table td {
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padding: 6px 10px;
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border: 1px solid var(--border-soft);
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text-align: left;
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white-space: nowrap;
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}
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.sfc-csv-table th {
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background: var(--surface-soft);
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font-weight: 600;
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position: sticky;
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top: 0;
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}
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.sfc-csv-meta {
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padding: 6px 12px;
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font-size: 11px;
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color: var(--text-tertiary);
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text-align: center;
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border-top: 1px solid var(--border-soft);
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}
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.sfc-md {
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padding: 12px;
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max-height: 400px;
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overflow: auto;
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}
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.sfc-image {
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display: block;
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max-width: 100%;
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max-height: 400px;
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margin: 0 auto;
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cursor: zoom-in;
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padding: 12px;
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}
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.sfc-pdf {
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width: 100%;
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height: 400px;
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border: none;
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display: block;
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}
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</style>
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