feat: show dimmed video metadata beside thumbnails

src/main.rs

@@ -17,7 +17,8 @@
 //! Esc closes the popup; j/k loads the selected video's description and i returns to editing.
 //! Normal-mode t toggles a thumbnail in the same-sized popup; j/k follows selection, Esc closes.
 //! Images use native terminal graphics when supported, otherwise colored half-block characters.
-//! Thumbnails scale up or down proportionally to fill the popup without cropping.
+//! Thumbnails scale proportionally in the left pane without cropping.
+//! The right pane shows a wrapped title above author · publication date, dimmed like the footer.
 //! curl fetches JPEGs lazily into memory; decoding and image resizing/encoding run off-thread.
 //! Channel tags live in `$XDG_CONFIG_HOME/tubular/config.toml`, or `~/.config/tubular/config.toml`.
 //! `[categories]` stores flat, overlapping tags: one channel can appear in several arrays.
@@ -1021,15 +1022,39 @@ impl App {
         {
             let popup = preview_area(frame.area());
             frame.render_widget(Clear, popup);
-            let block = Block::bordered()
-                .title_bottom(Line::from(vec![
-                    " ".into(),
-                    video.title.as_str().into(),
-                    " ".into(),
-                ]))
-                .border_style(Style::new().fg(Color::Cyan));
+            let block = Block::bordered().border_style(Style::new().fg(Color::Cyan));
+            let [image, _, mut details] = Layout::horizontal([
+                Constraint::Fill(3),
+                Constraint::Length(2),
+                Constraint::Fill(2),
+            ])
+            .areas(block.inner(popup));
+            let metadata = Paragraph::new(vec![
+                Line::raw(video.title.as_str()),
+                Line::from(vec![
+                    video.channel.as_deref().unwrap_or("Unknown").into(),
+                    " · ".into(),
+                    video
+                        .publication_date
+                        .as_deref()
+                        .unwrap_or("Unknown")
+                        .into(),
+                ]),
+            ])
+            .wrap(Wrap { trim: true })
+            .dim();
+            let height = if details.is_empty() {
+                0
+            } else {
+                metadata
+                    .line_count(details.width)
+                    .min(details.height as usize) as u16
+            };
+            details.y += (details.height - height) / 2;
+            details.height = height;
+            frame.render_widget(metadata, details);
             // Drawing polls completion and starts resize work before we choose the title state.
-            self.thumbnail.draw(frame, block.inner(popup));
+            self.thumbnail.draw(frame, image);
             frame.render_widget(
                 block.title(loading_title(
                     " Thumbnail ",
@@ -1234,6 +1259,39 @@ mod tests {
         )
     }
 
+    #[test]
+    fn thumbnail_title_wraps_above_a_dimmed_byline_in_the_right_pane() {
+        use ratatui::{Terminal, backend::TestBackend, style::Modifier};
+
+        let mut app = app(&["tubular"]);
+        app.views[0].videos = youtube::search_results(
+            r#"{"entries":[{"id":"jNQXAC9IVRw","title":"First second third fourth fifth","channel":"Creator","upload_date":"20050423"}]}"#,
+        ).unwrap().videos;
+        app.views[0].selection.select(Some(0));
+        app.thumbnail_open = true;
+        for (width, height, x, title_y, title_lines) in [
+            (80, 24, 46, 10, vec!["First second third", "fourth fifth"]),
+            (120, 40, 69, 19, vec!["First second third fourth fifth"]),
+        ] {
+            let mut terminal = Terminal::new(TestBackend::new(width, height)).unwrap();
+            terminal
+                .draw(|frame| app.draw(frame, Duration::ZERO))
+                .unwrap();
+            let buffer = terminal.backend().buffer();
+            let mut lines = title_lines;
+            lines.push("Creator · 2005-04-23");
+            for (row, text) in lines.iter().enumerate() {
+                for (column, character) in text.chars().enumerate() {
+                    let cell = buffer
+                        .cell((x + column as u16, title_y + row as u16))
+                        .unwrap();
+                    assert_eq!(cell.symbol(), character.to_string());
+                    assert!(cell.modifier.contains(Modifier::DIM));
+                }
+            }
+        }
+    }
+
     #[test]
     fn view_tabs_wrap_whole_labels_and_keep_the_selected_row_visible() {
         use ratatui::{Terminal, backend::TestBackend};