feat: restore original YouTube titles with character transitions

src/main.rs

@@ -122,6 +122,7 @@ mod keys;
 mod miruro_browser;
 mod miruro_ui;
 mod thumbnail;
+mod titles;
 mod ui;
 mod video_state;
 mod youtube;
@@ -939,6 +940,7 @@ struct App {
     preview: Option<PreviewMode>,
     help_popup: Option<HelpPopup>,
     thumbnail: thumbnail::Thumbnail,
+    titles: titles::Titles,
     description_job: Option<(String, Job)>,
     description_error: Option<String>,
     // ponytail: 64-entry linear lookup; use a keyed LRU if the buffer grows.
@@ -998,6 +1000,7 @@ impl App {
             preview: None,
             help_popup: None,
             thumbnail: thumbnail::Thumbnail::new(),
+            titles: titles::Titles::default(),
             description_job: None,
             description_error: None,
             descriptions: std::collections::VecDeque::with_capacity(DESCRIPTION_CACHE_SIZE),
@@ -2926,6 +2929,10 @@ impl App {
     }
 
     fn draw(&mut self, frame: &mut Frame, elapsed: Duration) {
+        self.draw_at(frame, elapsed, Instant::now());
+    }
+
+    fn draw_at(&mut self, frame: &mut Frame, elapsed: Duration, now: Instant) {
         let spinner = ui::spinner(elapsed);
         let area = frame.area();
         let mut tab_lines = vec![Line::default()];
@@ -2979,6 +2986,25 @@ impl App {
             self.mode == Mode::Insert && self.category_dialog.is_none(),
         );
         let view = &mut self.views[self.view_index];
+        let rows = usize::from(results.height.saturating_sub(2) / 2);
+        let mut offset = view
+            .selection
+            .offset()
+            .min(view.videos.len().saturating_sub(rows));
+        if let Some(selected) = view
+            .selection
+            .selected()
+            .filter(|&index| index < view.videos.len())
+        {
+            if selected < offset {
+                offset = selected;
+            } else if rows > 0 && selected >= offset + rows {
+                offset = selected + 1 - rows;
+            }
+        }
+        *view.selection.offset_mut() = offset;
+        self.titles
+            .update(&mut view.videos, offset..offset.saturating_add(rows), now);
         let table = Table::new(
             view.videos.iter().map(|video| {
                 let tagged = self
@@ -2986,7 +3012,7 @@ impl App {
                     .categories
                     .values()
                     .any(|channels| video_in_channels(video, channels, &self.config));
-                let title = Span::raw(video.title.as_str());
+                let title = Span::raw(self.titles.title(video));
                 let channel = Span::raw(video.channel.as_deref().unwrap_or("Unknown"));
                 Row::new([
                     Cell::from(if self.video_state.is_watched(&video.id) {
@@ -3555,7 +3581,8 @@ impl App {
         loop {
             self.update();
             terminal.draw(|frame| self.draw(frame, started.elapsed()))?;
-            if event::poll(Duration::from_millis(100))? {
+            let refresh = Duration::from_millis(if self.titles.active() { 20 } else { 100 });
+            if event::poll(refresh)? {
                 match event::read()? {
                     Event::Key(key) if key.kind != KeyEventKind::Release => {
                         if self.key(key) {