set OSC 6 (current document)

src/app.rs

@@ -57,7 +57,7 @@ impl App {
 		let mut buffers: Vec<Buffer> = files
 			.iter()
 			.filter_map(|path| {
-				Buffer::from_file_at(path.clone())
+				Buffer::from_file_at(path)
 					.inspect_err(|error| {
 						error_alert = Some(
 							Span::raw(format!("error reading '{}': {error}", path.display())).red()

src/buffer.rs

@@ -1,4 +1,4 @@
-use std::{collections::HashSet, fs::File, io::{self, Read}, path::PathBuf};
+use std::{collections::HashSet, fs::File, io::{self, Read}, path::{Path, PathBuf}};
 use crossterm::event::KeyEvent;
 use ratatui::{style::Stylize, text::Span};
 use serde::{Deserialize, Serialize};
@@ -75,7 +75,9 @@ impl TryFrom<&str> for PartialAction {
 }
 
 impl Buffer {
-	pub fn from_file_at(file_path: PathBuf) -> io::Result<Self> {
+	pub fn from_file_at(file_path: &Path) -> io::Result<Self> {
+		let file_path = file_path.canonicalize()?;
+		
 		let mut file = File::open(&file_path)?;
 		let mut contents = Vec::new();
 		file.read_to_end(&mut contents)?;

src/buffer/widget.rs

@@ -10,6 +10,9 @@ mod extra_statuses;
 
 impl Widget for &Buffer {
 	fn render(self, area: Rect, buf: &mut ratatui::buffer::Buffer) {
+		// set OSC 6 (current document)
+		print!("\x1B]6;{}\x07", self.file_path.display());
+		
 		let screen_end = self.scroll_position + BYTES_PER_LINE * (area.height as usize - 1);
 		let bytes_end = min(screen_end, self.contents.len());