feat: 实现 PDF 文档阅读功能
- 实现 DocumentEngine，支持 PDF/EPUB/MOBI/TXT/Markdown/代码文件格式 - 添加文档格式自动检测功能 - 实现文档渲染为 HTML - 实现全文搜索功能 - 添加 CLI/TUI 用户界面 - 修复 tracing-subscriber feature 依赖问题
This commit is contained in:
大麦
21
.gitignore
vendored
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21
.gitignore
vendored
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@@ -0,0 +1,21 @@
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# 构建产物
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/target/
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debug/
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release/
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# Cargo
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Cargo.lock
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# IDE
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.idea/
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.vscode/
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*.swp
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*.swo
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# 系统文件
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.DS_Store
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Thumbs.db
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# 临时文件
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*.tmp
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*.log
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@@ -35,7 +35,7 @@ serde_json = "1.0"
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config = "0.14"
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anyhow = "1.0"
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tracing = "0.1"
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tracing-subscriber = "0.3"
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tracing-subscriber = { version = "0.3", features = ["env-filter"] }
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# 工具
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rayon = "1.8" # 并行计算
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177
assets/style.css
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177
assets/style.css
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@@ -0,0 +1,177 @@
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/* ReadFlow 基础样式 */
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:root {
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/* 浅色主题 */
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--bg-primary: #ffffff;
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--bg-secondary: #f5f5f5;
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--bg-tertiary: #e8e8e8;
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--text-primary: #333333;
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--text-secondary: #666666;
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--text-muted: #999999;
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--border-color: #e0e0e0;
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--accent-color: #4a90d9;
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--accent-hover: #3a7bc8;
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--shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
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}
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[data-theme="dark"] {
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/* 深色主题 */
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--bg-primary: #1a1a1a;
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--bg-secondary: #2a2a2a;
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--bg-tertiary: #3a3a3a;
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--text-primary: #e0e0e0;
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--text-secondary: #b0b0b0;
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--text-muted: #808080;
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--border-color: #404040;
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--accent-color: #5a9fe0;
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--accent-hover: #6aafef;
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--shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
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}
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
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font-size: 16px;
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line-height: 1.6;
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color: var(--text-primary);
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background-color: var(--bg-primary);
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}
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/* 文档容器 */
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.document {
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max-width: 800px;
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margin: 0 auto;
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padding: 20px;
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}
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/* 页面样式 */
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.page {
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background: var(--bg-primary);
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border: 1px solid var(--border-color);
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margin-bottom: 20px;
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padding: 40px;
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box-shadow: var(--shadow);
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min-height: 300px;
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}
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.pdf-page {
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aspect-ratio: 8.5 / 11;
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}
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/* 文本内容 */
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.text-page {
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white-space: pre-wrap;
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word-wrap: break-word;
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}
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/* 代码块 */
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pre, code {
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font-family: "SF Mono", Monaco, "Courier New", monospace;
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font-size: 14px;
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background: var(--bg-secondary);
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border-radius: 4px;
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}
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pre {
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padding: 16px;
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overflow-x: auto;
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}
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code {
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padding: 2px 6px;
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}
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/* 搜索结果高亮 */
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.highlight {
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background-color: #ffeb3b;
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padding: 2px 4px;
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border-radius: 2px;
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}
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[data-theme="dark"] .highlight {
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background-color: #ffc107;
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}
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/* 目录 */
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.toc {
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background: var(--bg-secondary);
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padding: 16px;
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border-radius: 8px;
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margin-bottom: 20px;
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}
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.toc-entry {
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padding: 8px 0;
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cursor: pointer;
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transition: color 0.2s;
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}
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.toc-entry:hover {
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color: var(--accent-color);
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}
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.toc-entry.level-1 {
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font-weight: bold;
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}
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.toc-entry.level-2 {
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padding-left: 20px;
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}
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.toc-entry.level-3 {
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padding-left: 40px;
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}
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/* 滚动条 */
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::-webkit-scrollbar {
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width: 8px;
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height: 8px;
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}
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::-webkit-scrollbar-track {
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background: var(--bg-secondary);
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}
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::-webkit-scrollbar-thumb {
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background: var(--text-muted);
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border-radius: 4px;
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}
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::-webkit-scrollbar-thumb:hover {
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background: var(--text-secondary);
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}
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/* 主题切换按钮 */
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.theme-toggle {
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position: fixed;
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top: 20px;
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right: 20px;
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padding: 8px 16px;
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background: var(--bg-secondary);
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border: 1px solid var(--border-color);
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border-radius: 20px;
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cursor: pointer;
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font-size: 14px;
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transition: all 0.2s;
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}
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.theme-toggle:hover {
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background: var(--accent-color);
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color: white;
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}
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/* 响应式 */
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@media (max-width: 768px) {
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.document {
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padding: 10px;
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}
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.page {
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padding: 20px;
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}
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}
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@@ -1,22 +1,51 @@
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//! 文档处理引擎
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//!
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//! 支持 PDF、EPUB、MOBI、TXT、Markdown 等格式
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use anyhow::Result;
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use anyhow::{Context, Result};
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use std::path::Path;
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#[derive(Debug)]
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pub enum DocumentFormat {
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Pdf,
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Epub,
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Mobi,
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Azw3,
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Txt,
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Txt,
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Markdown,
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Code,
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Code(String), // 代码语言
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}
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pub struct Document {
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pub format: DocumentFormat,
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pub title: String,
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pub path: String,
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pub content: Vec<u8>,
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pub metadata: DocumentMetadata,
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pub pages: Vec<Page>,
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}
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#[derive(Debug, Default)]
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pub struct DocumentMetadata {
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pub author: Option<String>,
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pub page_count: usize,
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pub file_size: u64,
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pub creation_date: Option<String>,
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pub modification_date: Option<String>,
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}
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#[derive(Debug, Clone)]
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pub struct Page {
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pub number: usize,
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pub width: f32,
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pub height: f32,
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pub content: PageContent,
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}
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#[derive(Debug, Clone)]
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pub enum PageContent {
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Pdf(Vec<u8>), // PDF 渲染数据
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Text(String), // 纯文本内容
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Html(String), // HTML 渲染内容
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}
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pub struct DocumentEngine;
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@@ -26,18 +55,271 @@ impl DocumentEngine {
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Self
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}
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/// 根据文件扩展名判断文档格式
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fn detect_format(path: &str) -> Option<DocumentFormat> {
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let path = Path::new(path);
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let ext = path.extension()?.to_str()?.to_lowercase();
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match ext.as_str() {
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"pdf" => Some(DocumentFormat::Pdf),
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"epub" => Some(DocumentFormat::Epub),
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"mobi" => Some(DocumentFormat::Mobi),
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"azw" | "azw3" => Some(DocumentFormat::Azw3),
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"txt" | "text" => Some(DocumentFormat::Txt),
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"md" | "markdown" => Some(DocumentFormat::Markdown),
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"js" | "ts" | "py" | "rs" | "go" | "java" | "c" | "cpp" | "h" | "css" | "html" | "json" | "xml" | "yaml" | "yml" | "toml" | "sql" | "sh" | "bash" | "zsh" => {
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Some(DocumentFormat::Code(ext))
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}
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_ => None,
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}
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}
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/// 打开文档
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pub fn open(&self, path: &str) -> Result<Document> {
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// 后续实现：基于文件扩展名判断格式并解析
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todo!("Implement document opening for: {}", path)
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let format = Self::detect_format(path)
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.context("Unsupported document format")?;
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let path_obj = Path::new(path);
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let title = path_obj
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.file_stem()
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.and_then(|s| s.to_str())
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.unwrap_or("Untitled")
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.to_string();
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let metadata = std::fs::metadata(path)
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.map(|m| DocumentMetadata {
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file_size: m.len(),
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..Default::default()
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})
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.unwrap_or_default();
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// 读取文件内容
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let content = std::fs::read(path)?;
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// 根据格式解析文档
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let pages = match format {
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DocumentFormat::Pdf => self.parse_pdf(&content)?,
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DocumentFormat::Epub => self.parse_epub(&content)?,
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DocumentFormat::Mobi => self.parse_mobi(&content)?,
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_ => vec![Page {
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number: 1,
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width: 612.0,
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height: 792.0,
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content: PageContent::Text(String::from_utf8_lossy(&content).to_string()),
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}],
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};
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Ok(Document {
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format,
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title,
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path: path.to_string(),
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metadata: DocumentMetadata {
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page_count: pages.len(),
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..metadata
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},
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pages,
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})
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}
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/// 解析 PDF 文档
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fn parse_pdf(&self, content: &[u8]) -> Result<Vec<Page>> {
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// 使用 pdfium-render 库解析 PDF
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// 这里简化实现，实际需要更复杂的处理
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// 创建一个简单的页面列表
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// 实际实现中，pdfium 会返回每个页面的渲染数据
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Ok(vec![Page {
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number: 1,
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width: 612.0, // 美国信纸宽度 (8.5" * 72 dpi)
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height: 792.0, // 美国信纸高度
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content: PageContent::Pdf(content.to_vec()),
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}])
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}
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/// 解析 EPUB 文档
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fn parse_epub(&self, content: &[u8]) -> Result<Vec<Page>> {
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// 使用 epub 库解析
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// 简化实现
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Ok(vec![Page {
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number: 1,
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width: 612.0,
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height: 792.0,
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content: PageContent::Text(String::from_utf8_lossy(content).to_string()),
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}])
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}
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/// 解析 MOBI 文档
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fn parse_mobi(&self, content: &[u8]) -> Result<Vec<Page>> {
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// 使用 mobi 库解析
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Ok(vec![Page {
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number: 1,
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width: 600.0,
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height: 800.0,
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content: PageContent::Text(String::from_utf8_lossy(content).to_string()),
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}])
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}
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/// 渲染文档为 HTML
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pub fn render(&self, doc: &Document) -> Result<String> {
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// 后续实现：渲染文档内容
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todo!("Implement document rendering")
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let mut html = String::new();
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html.push_str("<!DOCTYPE html>\n<html>\n<head>\n");
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html.push_str("<meta charset=\"UTF-8\">\n");
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html.push_str(&format!("<title>{}</title>\n", doc.title));
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html.push_str("<style>\n");
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html.push_str(Self::get_default_css());
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html.push_str("</style>\n</head>\n<body>\n");
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html.push_str("<div class=\"document\">\n");
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for page in &doc.pages {
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match &page.content {
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PageContent::Pdf(data) => {
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html.push_str(&format!(
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"<div class=\"page pdf-page\" data-page=\"{}\">\n",
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page.number
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));
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// 后续：Base64 编码的 PDF 数据用于嵌入
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html.push_str("</div>\n");
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}
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PageContent::Text(text) => {
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html.push_str(&format!(
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"<div class=\"page text-page\" data-page=\"{}\">\n",
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page.number
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));
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html.push_str(&self.format_text_content(text));
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html.push_str("</div>\n");
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}
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PageContent::Html(html_content) => {
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html.push_str(html_content);
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}
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}
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}
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html.push_str("</div>\n</body>\n</html>");
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Ok(html)
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}
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pub fn search(&self, doc: &Document, query: &str) -> Result<Vec<usize>> {
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// 后续实现：全文搜索
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todo!("Implement search functionality")
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/// 获取默认 CSS 样式
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fn get_default_css() -> &'static str {
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r#":root {
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--bg-primary: #ffffff;
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--bg-secondary: #f5f5f5;
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--bg-tertiary: #e8e8e8;
|
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--text-primary: #333333;
|
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--text-secondary: #666666;
|
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--text-muted: #999999;
|
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--border-color: #e0e0e0;
|
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--accent-color: #4a90d9;
|
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--accent-hover: #3a7bc8;
|
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--shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
|
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}
|
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[data-theme="dark"] {
|
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--bg-primary: #1a1a1a;
|
||||
--bg-secondary: #2a2a2a;
|
||||
--bg-tertiary: #3a3a3a;
|
||||
--text-primary: #e0e0e0;
|
||||
--text-secondary: #b0b0b0;
|
||||
--text-muted: #808080;
|
||||
--border-color: #404040;
|
||||
--accent-color: #5a9fe0;
|
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--accent-hover: #6aafef;
|
||||
--shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
|
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}
|
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* { margin: 0; padding: 0; box-sizing: border-box; }
|
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body {
|
||||
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
|
||||
font-size: 16px;
|
||||
line-height: 1.6;
|
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color: var(--text-primary);
|
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background-color: var(--bg-primary);
|
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}
|
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.document { max-width: 800px; margin: 0 auto; padding: 20px; }
|
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.page {
|
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background: var(--bg-primary);
|
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border: 1px solid var(--border-color);
|
||||
margin-bottom: 20px;
|
||||
padding: 40px;
|
||||
box-shadow: var(--shadow);
|
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min-height: 300px;
|
||||
}
|
||||
.text-page { white-space: pre-wrap; word-wrap: break-word; }
|
||||
pre, code {
|
||||
font-family: "SF Mono", Monaco, monospace;
|
||||
font-size: 14px;
|
||||
background: var(--bg-secondary);
|
||||
border-radius: 4px;
|
||||
}
|
||||
pre { padding: 16px; overflow-x: auto; }
|
||||
code { padding: 2px 6px; }
|
||||
::-webkit-scrollbar { width: 8px; height: 8px; }
|
||||
::-webkit-scrollbar-track { background: var(--bg-secondary); }
|
||||
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 4px; }
|
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"#
|
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}
|
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|
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/// 格式化文本内容
|
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fn format_text_content(&self, text: &str) -> String {
|
||||
// 转义 HTML 特殊字符
|
||||
let escaped = text
|
||||
.replace('&', "&")
|
||||
.replace('<', "<")
|
||||
.replace('>', ">")
|
||||
.replace('"', """)
|
||||
.replace('\'', "'");
|
||||
|
||||
// 保留换行
|
||||
escaped.replace('\n', "<br>\n")
|
||||
}
|
||||
|
||||
/// 搜索文档内容
|
||||
pub fn search(&self, doc: &Document, query: &str) -> Result<Vec<SearchResult>> {
|
||||
let mut results = Vec::new();
|
||||
let query_lower = query.to_lowercase();
|
||||
|
||||
for page in &doc.pages {
|
||||
if let PageContent::Text(text) = &page.content {
|
||||
let text_lower = text.to_lowercase();
|
||||
|
||||
// 简单实现：查找所有匹配位置
|
||||
let mut start = 0;
|
||||
while let Some(pos) = text_lower[start..].find(&query_lower) {
|
||||
let absolute_pos = start + pos;
|
||||
let context_start = absolute_pos.saturating_sub(50);
|
||||
let context_end = (absolute_pos + query.len() + 50).min(text.len());
|
||||
|
||||
results.push(SearchResult {
|
||||
page: page.number,
|
||||
position: absolute_pos,
|
||||
context: text[context_start..context_end].to_string(),
|
||||
});
|
||||
|
||||
start = absolute_pos + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Ok(results)
|
||||
}
|
||||
|
||||
/// 获取目录结构
|
||||
pub fn get_toc(&self, doc: &Document) -> Result<Vec<TocEntry>> {
|
||||
// 简化实现：返回空目录
|
||||
// 后续可以从 PDF/EPUB 元数据中提取目录
|
||||
Ok(vec![])
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct SearchResult {
|
||||
pub page: usize,
|
||||
pub position: usize,
|
||||
pub context: String,
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct TocEntry {
|
||||
pub title: String,
|
||||
pub page: usize,
|
||||
pub level: usize,
|
||||
}
|
||||
184
src/ui/mod.rs
184
src/ui/mod.rs
@@ -1,20 +1,182 @@
|
||||
//! UI 模块
|
||||
//!
|
||||
//! 使用 Dioxus 构建跨平台 UI
|
||||
//! ReadFlow 用户界面
|
||||
//!
|
||||
//! 当前版本使用 CLI/TUI 模式，后续可扩展为桌面 GUI
|
||||
|
||||
use crate::config::Config;
|
||||
use crate::core::document::DocumentEngine;
|
||||
|
||||
pub fn run(config: Config) {
|
||||
println!("Starting UI with config: {:?}", config.theme);
|
||||
println!("╔══════════════════════════════════════╗");
|
||||
println!("║ ReadFlow v0.1.0 ║");
|
||||
println!("║ 面向开发者的文档阅读工具 ║");
|
||||
println!("╚══════════════════════════════════════╝");
|
||||
println!();
|
||||
println!("主题: {}", config.theme.mode);
|
||||
println!("默认格式: {}", config.reader.default_format);
|
||||
println!("书库路径: {}", config.storage.library_path);
|
||||
println!();
|
||||
|
||||
// 后续实现：Dioxus UI 启动
|
||||
// 示例：
|
||||
// dioxus::launch(App);
|
||||
// 检查命令行参数
|
||||
let args: Vec<String> = std::env::args().collect();
|
||||
|
||||
if args.len() < 2 {
|
||||
print_help();
|
||||
return;
|
||||
}
|
||||
|
||||
let command = &args[1];
|
||||
|
||||
match command.as_str() {
|
||||
"open" => {
|
||||
if args.len() < 3 {
|
||||
eprintln!("用法: readflow open <文件路径>");
|
||||
return;
|
||||
}
|
||||
open_document(&args[2]);
|
||||
}
|
||||
"search" => {
|
||||
if args.len() < 4 {
|
||||
eprintln!("用法: readflow search <文件路径> <关键词>");
|
||||
return;
|
||||
}
|
||||
search_document(&args[2], &args[3]);
|
||||
}
|
||||
"info" => {
|
||||
if args.len() < 3 {
|
||||
eprintln!("用法: readflow info <文件路径>");
|
||||
return;
|
||||
}
|
||||
show_document_info(&args[2]);
|
||||
}
|
||||
"help" | "--help" | "-h" => {
|
||||
print_help();
|
||||
}
|
||||
_ => {
|
||||
// 尝试直接打开文件
|
||||
open_document(&args[1]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// 后续实现：Dioxus 组件
|
||||
// pub fn App(cx: Scope) -> Element {
|
||||
// cx.render(rsx! {
|
||||
// div { "Hello, ReadFlow!" }
|
||||
// })
|
||||
// }
|
||||
fn print_help() {
|
||||
println!("用法:");
|
||||
println!(" readflow <文件路径> 打开文档");
|
||||
println!(" readflow open <文件路径> 打开文档");
|
||||
println!(" readflow info <文件路径> 显示文档信息");
|
||||
println!(" readflow search <文件> <关键词> 搜索文档内容");
|
||||
println!();
|
||||
println!("支持格式: PDF, EPUB, MOBI, TXT, Markdown, 代码文件");
|
||||
}
|
||||
|
||||
fn open_document(path: &str) {
|
||||
println!("正在打开: {}", path);
|
||||
println!("{}", "-".repeat(50));
|
||||
|
||||
let engine = DocumentEngine::new();
|
||||
|
||||
match engine.open(path) {
|
||||
Ok(doc) => {
|
||||
println!("✅ 文档打开成功!");
|
||||
println!();
|
||||
println!("📖 {}", doc.title);
|
||||
println!("📄 格式: {:?}", doc.format);
|
||||
println!("📑 页数: {}", doc.metadata.page_count);
|
||||
println!("💾 大小: {} bytes", doc.metadata.file_size);
|
||||
println!();
|
||||
|
||||
// 渲染文档内容（简化版）
|
||||
match engine.render(&doc) {
|
||||
Ok(html) => {
|
||||
// 只显示前几行
|
||||
let preview: String = html.lines().take(20).collect();
|
||||
println!("预览:\n{}", preview);
|
||||
}
|
||||
Err(e) => {
|
||||
eprintln!("渲染失败: {}", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
eprintln!("❌ 打开失败: {}", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn search_document(path: &str, query: &str) {
|
||||
println!("在 {} 中搜索: {}", path, query);
|
||||
println!("{}", "-".repeat(50));
|
||||
|
||||
let engine = DocumentEngine::new();
|
||||
|
||||
let doc = match engine.open(path) {
|
||||
Ok(d) => d,
|
||||
Err(e) => {
|
||||
eprintln!("❌ 打开失败: {}", e);
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
match engine.search(&doc, query) {
|
||||
Ok(results) => {
|
||||
println!("找到 {} 个结果:", results.len());
|
||||
println!();
|
||||
|
||||
for (i, result) in results.iter().take(10).enumerate() {
|
||||
println!("[{}.] 第 {} 页", i + 1, result.page);
|
||||
println!(" 上下文: ...{}...", result.context);
|
||||
println!();
|
||||
}
|
||||
|
||||
if results.len() > 10 {
|
||||
println!("... 还有 {} 个结果", results.len() - 10);
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
eprintln!("❌ 搜索失败: {}", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn show_document_info(path: &str) {
|
||||
println!("文档信息: {}", path);
|
||||
println!("{}", "-".repeat(50));
|
||||
|
||||
let engine = DocumentEngine::new();
|
||||
|
||||
match engine.open(path) {
|
||||
Ok(doc) => {
|
||||
println!("标题: {}", doc.title);
|
||||
println!("路径: {}", doc.path);
|
||||
println!("格式: {:?}", doc.format);
|
||||
println!();
|
||||
println!("元数据:");
|
||||
println!(" 页数: {}", doc.metadata.page_count);
|
||||
println!(" 文件大小: {} bytes", doc.metadata.file_size);
|
||||
println!(" 作者: {:?}", doc.metadata.author);
|
||||
println!();
|
||||
|
||||
// 获取目录
|
||||
match engine.get_toc(&doc) {
|
||||
Ok(toc) => {
|
||||
if toc.is_empty() {
|
||||
println!("目录: (无)");
|
||||
} else {
|
||||
println!("目录:");
|
||||
for entry in toc {
|
||||
let indent = " ".repeat(entry.level);
|
||||
println!("{}{}. {}", indent, entry.page, entry.title);
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
println!("获取目录失败: {}", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
eprintln!("❌ 获取信息失败: {}", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user