lsv 0.1.15

Three‑pane terminal file viewer (TUI) with preview and Lua configuration
Documentation 
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//! Marks persistence and navigation for App.

use crate::app::App;

impl App
{
    pub(crate) fn save_marks(&self)
    {
        if let Some(root) = self.theme_root_dir()
        {
            let path = root.join("marks");
            let _ = crate::core::marks::save_marks(&path, &self.marks);
        }
    }

    pub(crate) fn add_mark(
        &mut self,
        ch: char,
    )
    {
        let dir = self.cwd.clone();
        self.marks.insert(ch, dir.clone());
        self.save_marks();
        self.add_message(&format!("Mark '{}' set: {}", ch, dir.display()));
    }

    pub(crate) fn goto_mark(
        &mut self,
        ch: char,
    )
    {
        if let Some(path) = self.marks.get(&ch).cloned()
        {
            if path.is_dir()
            {
                self.set_cwd(&path);
                self.add_message(&format!("Jumped to '{}'", path.display()));
            }
            else
            {
                self.add_message(&format!(
                    "Mark '{}' not a directory: {}",
                    ch,
                    path.display()
                ));
            }
        }
        else
        {
            self.add_message(&format!("No mark '{}'", ch));
        }
    }

    pub(crate) fn list_marks_text(&self) -> String
    {
        let mut keys: Vec<char> = self.marks.keys().copied().collect();
        keys.sort();
        let mut out = String::new();
        for k in keys
        {
            if let Some(p) = self.marks.get(&k)
            {
                out.push_str(&format!("{}  {}\n", k, p.display()));
            }
        }
        if out.is_empty()
        {
            out.push_str("<no marks>\n");
        }
        out
    }
}