Add markdown.rs viewer

2026-03-19 00:32:06 +08:00
parent af58582274
commit 791da004f2
1 changed files with 49 additions and 0 deletions
--- a/src/viewer/markdown.rs
+++ b/src/viewer/markdown.rs
@@ -0,0 +1,49 @@
 //! Markdown 檢視器
 use anyhow::Result;
 pub struct MarkdownViewer {
    content: Option<String>,
 }
 impl MarkdownViewer {
    pub fn new() -> Self {
        Self { content: None }
    }
    pub fn load(&mut self, content: &str) -> Result<String> {
        self.content = Some(content.to_string());
        self.render()
    }
    pub fn render(&self) -> Result<String> {
        let content = self.content.as_ref()
            .ok_or_else(|| anyhow::anyhow!("No content loaded"))?;
        let parser = pulldown_cmark::Parser::new(content);
        let mut html = String::new();
        pulldown_cmark::html::push_html(&mut html, parser);
        Ok(html)
    }
    pub fn get_html_template(&self) -> String {
        r#"
 <!DOCTYPE html>
 <html>
 <head>
    <meta charset="utf-8">
    <style>
        body { font-family: system-ui; padding: 20px; max-width: 800px; margin: 0 auto; }
        pre { background: #f4f4f4; padding: 10px; border-radius: 4px; overflow-x: auto; }
        code { background: #f4f4f4; padding: 2px 6px; border-radius: 3px; }
        img { max-width: 100%; }
    </style>
 </head>
 <body>
    <div id="content">CONTENT_PLACEHOLDER</div>
 </body>
 </html>
 "#.replace("CONTENT_PLACEHOLDER", &self.render().unwrap_or_default())
    }
 }